text:
Office of Scientific and Technical Information
Non-OPEC oil production: The key to the future
Science Conference Proceedings (OSTI)
The dramatic increase in non-OPEC oil production that has occurred since the fuel crises of the seventies was accelerated by the subsequent increases in oil prices on world markets. Current moderate world prices are attributable to increased supply in the last decade from these countries. Among those nations whose production has more than doubled since 1973 are China, Mexico, the UK, Norway, Egypt, India, Oman, Brazil, Colombia, Angola, and Syria. In this context, non-OPEC nations include the Communist oil-producing countries, since their ability to meet their own domestic demand has forestalled the day when they will compete for supplies on world markets. The prospect for continued growth in non-OPEC oil production is good. Prospects for additions to reserves continue to be bright in virgin exploration areas and semimature oil-producing provinces. Non-OPEC oil production may reach peak levels in the 1995--2000 time frame. However, production will be increasingly countered by growing demand, especially in South and Central America and Asia. It is almost certain that by the mid-nineties, competition for oil supplies in world markets will elevate the price of oil available from the well endowed OPEC nations. Supply disruptions as well may be in the offing by the turn of the century as surpluses on world markets disappear. 92 refs., 20 figs., 5 tabs.
Borg, I.Y.
OPEC and Non-OPEC Oil Production, 1970-2020
U.S. Energy Information Administration (EIA)
New exploration and production ... �OPEC production in 2020 is projected to be almost 24 million barrels per day higher than the 1997 level of nearly 30 ...
Non-OPEC supply to fill global 1996 demand gain
SciTech Connect
Excess capacity brought on by rapidly rising oil production from outside the Organization of Petroleum Exporting Countries, coupled with stabilization of output from the Commonwealth of Independent States, will hamper OPEC`s efforts to balance the oil market in 1996. World demand for oil is projected to move up sharply. But non-OPEC output will increase even more, challenging OPEC to reduce production quotas. This paper reviews data on supply, demand, and production from these non-OPEC countries and the overall effects it will have on OPEC operations and costs.
Beck, R.J.
The oil price and non-OPEC supplies
The design of any effective oil pricing policy by producers depends on a knowledge of the nature and complexity of supply responses. This book examines the development of non-OPEX oil reserves on a field-by-filed basis to determine how much of the increase in non-OPEC production could be attributable to the price shocks and how much was unambiguously due to decisions and developments that preceded the price shocks. Results are presented in eighteen case-studies of non-OPEC producers. This study will be of interest to economists and planners specializing in the upstream and to policy makers both in oil producing and consuming countries.
Seymour, A.
The real prospect of non-OPEC oil supply
The above analysis does not constitute a forecast of non-OPEC supply. But the picture that emerges from it is so different from the conventional wisdom of the past 10 to 15 years, we believe it deserves careful consideration. There is little evidence that the general historical pattern of regularly finding sufficient oil to meet world demand has changed, or is about to change. Without a clear indication that they have done so, OPEC`s planners should expect more non-OPEC production for the foreseeable future. We all know that higher prices have provided incentives to explore at least the more attractive of the potential targets. But more stable prices, even at low levels ($15 to $18 per barrel) and better technologies will induce more diverse oil suppliers.
Al-Sahlawi, M.A. [King Fahd Univ. of Petroleum and Minerals, Dhahran (Saudi Arabia)
Lubricants Imports from Non OPEC
U.S. Imports by Country of Origin ... and Gabon withdrew from OPEC in July 1996. Crude oil and petroleum products are reported by the PAD District of entry.
Non-OPEC oil supply gains to outpace demand in 1997
Rising oil supplies in 1997 will relax some of the market tightness that drove up crude prices last year. Worldwide demand for petroleum products in 1996 rose faster than anticipated and faster than supply from outside the Organization of Petroleum Exporting Countries. This increased demand for OPEC oil and pushed up prices for crude. At year end, the world export price of crude was up more than 25% from the same period a year earlier. Market conditions will change in 1997. While worldwide economic growth will continue to boost demand for energy and petroleum, non-OPEC petroleum supply will grow even more. Increases in North Sea and Latin American production will help boost non-OPEC output by 1.9 million b/d. And revenues from 1996 production gains will make additional investment possible in exploration and production. The paper discusses world economic growth, world oil demand, worldwide supply, supply outlook, prices and international drilling.
Microsoft Word - STEO supplement non-OPEC supply Final-2.doc
Gasoline and Diesel Fuel Update (EIA)
08 08 1 February 2008 Short-Term Energy Outlook Supplement: Outlook for Non-OPEC Oil Supply Growth in 2008- 2009 1 Most oil market analysts, including EIA, have pointed to the slow growth in oil supply from countries that are not members of the Organization of the Petroleum Exporting Countries (OPEC) in recent years as a key cause of the current high oil price environment. The widening gap between growth in world oil consumption and non- OPEC oil supply has led to greater reliance upon production by OPEC and a drawdown in the Organization for Economic Cooperation and Development (OECD) commercial inventories. These conditions have contributed to upward pressure on world oil prices in recent years (see Why Are Oil Prices So High?, supplement to the November 2007 Short-
OPEC takes a bow while non-OPEC calls intermission
OPEC's cuts in light crude prices are credited with calming oil market jitters and for saving consuming countries money. Non-OPEC North Sea, Mexico, and other oil exporters, accompanied by OPEC member Venequela in the case of its very heavy crudes, will be reacting individually to economic imperatives, and will be factors in the updated OPEC pricing structure. Citing Energey Detente interviews on spot and futures markets, the author compares value components of both heavy and light crudes and some of the dynamics involved in world oil prices. He develops a scenario of stabilized or reduced heavy oil prices that could stop the erosion of light oil prices and help to stabiliize the overall world oil market. 2 figures.
Not Available
Outlook for Non-OPEC Oil Supply Growth in 2008-2009 (Released in the STEO February 2008)
Reports and Publications (EIA)
In 2008-2009, EIA expects that non-OPEC petroleum supply growth will surpass that inrecent years because of the large number of new oil projects scheduled to come onlineduring the forecast period.
Information Center
Non-OPEC oil supply continues to grow
Global reserves of crude oil remain at 1 trillion bbl, according to OGJ`s annual survey of producing countries. Significant gains are in Brazil, Colombia, Congo, Egypt, Libya, Nigeria, Oman, and Papua New Guinea. Decreases were reported by Indonesia, Norway, the U.K., Iran, Canada, Mexico, and the US. Natural gas reserves slipped to 4.9 quadrillion cu ft. The major production trend is a lasting surge from outside of OPEC. This year`s Worldwide Production report begins with a detailed analysis of this crucial development by an international authority. This article discusses the OECD outlook by region and the turnaround in production in the former Soviet Union.
Knapp, D.H. [International Energy Agency, Paris (France)
Outlook for Non-OPEC Oil Supply in 2010-2011 (Released in the STEO January 2010)
Two large categories define the world's producing countries of crude oil andother liquid fuels (hereafter liquids): those that are members of theOrganization of the Petroleum Exporting Countries (OPEC) and those that areoutside that group (non-OPEC). This article takes a closer look at the lattercategory.
Non OPEC Net Imports of Crude Oil and Petroleum Products into the U.S.
... California crude oil to Pacific Rim countries. The Persian Gulf includes Bahrain, Iran, Iraq, Kuwait, Qatar, Saudi Arabia, and the United Arab Emirates.
Estimates of Non-OPEC Supply Growth Has Been Continually Too ...
... Will Remain Flat Typical Economic Relationship Between Surplus Production Capacity and Price Modeling Crude Price with Fundamentals 1980s U.S. Refining Capacity ...
Non-OPEC supply to test OPEC`s quota resolve in second half
The paper discusses the oil market, the worldwide outlook for demand, crude oil prices, petroleum product prices, natural gas prices, US outlook, US energy demand, sector demand, US natural gas consumption, US petroleum demand, motor gasoline, distillates, resid, LPG and other products, US petroleum supply, refining, imports, stocks, and Strategic Petroleum Reserve stocks.
Higher oil prices: Can OPEC raise prices by cutting production
OPEC's ability to raise prices is evaluated with a model that projects the supply and demand. As part of the model, a new methodology to forecast for the rate of production by non-OPEC nations is developed. A literature review of techniques for estimating oil supply and annual rates of production indicates a new methodology is needed. The new technique incorporates the geological, engineering, and economic aspects of the oil industry by synthesizing curve fitting and econometric techniques. It is used to analyze data for eight regions for non-OPEC oil production: the lower 48 states, Alaska, Canada, Mexico, non-OPEC South America, Western Europe, non-OPEC Africa, and non-OPEC Asia. OPEC's ability to raise prices is examined by tracking the percentage oil US oil demand supplied by imports, the portion of oil demand in Western Europe supplied by local production, the percentage of WOCA oil demand supplied by OPEC and Real OPEC revenues. Results of the model indicate that OPEC can raise oil prices in the early 1990s. OPEC can raise and sustain oil prices near $25 (1982 dollars). Higher oil prices ($35) are not sustainable before 2000 because reduced demand and increased non-OPEC production shrink OPEC revenues below acceptable levels. After 2000, $35 prices are sustainable.
Kaufmann, R.K.
Shifting production trends point to more oil from OPEC
Oil production from the Organization of Petroleum Exporting Countries and non-OPEC regions has undergone four major phases of change in relation to oil price since 1960. Patterns visible in those phases offer an indication of world-wide production trends in the future. These four phases are described. Overall, demand for oil during 1960--93 has increased from around 20 million b/d in 1960 to as high as 65 million b/d in 1993. The consensus among energy analysts and forecasters is that this demand growth will continue. This will encourage OPEC and non OPEC producers to invest in the oil industry to meet future demand growth. However, since the resource base is larger in OPEC than in non-OPEC areas, and since the cost of developing these resources is lower in OPEC than outside OPEC, the future call on OPEC oil to meet growth in demand will undoubtedly be substantiated as production from the non-OPEC region diminishes or at best stagnates. The paper discusses OPEC production trends, non-OPEC production, natural gas liquids, future production scenarios, and future constraints on production.
Ismail, I.A.H. (Organization of Petroleum Exporting Countries, Vienna (Austria))
Trends in oil production costs in the Middle East, elsewhere
This article focuses on the costs of oil production in the major areas of the world, including OPEC and non-OPEC countries. The question of production costs has become even more important since 1986, when the Saudis unilaterally undercut the oil price. Shaikh Yamani slashed oil prices in 1986 with three clearly articulated objectives: (1) to reduce conservation; (2) to stimulate global economic growth; and (3) to discourage non-OPEC energy supplies of all kinds. Here the authors address the last of those strategic objectives -- squeezing out non-OPEC oil -- by comparing oil production costs around the world. The analysis is framed with respect to five questions: How great is the variation in full costs of production within OPEC itself Are the costs of OPEC and non-OPEC producers radically different Are there producing areas today that are cost-constrained, meaning where E P activity is limited by high costs in relation to expected prices Has the Saudi market share strategy been successful in curbing non-OPEC oil development Is it probably, as is often bruited, that lack of capital for new E P projects might constrain future oil production, especially in the OPEC states
Stauffer, T.R. (Stauffer, (Thomas R.), Washington, DC (United States))
Long Term World Oil Supply (A Resource Base/Production Path ...
Table of Contents. Long Term World Oil Supply (A Resource Base/Production Path Analysis) Executive Summary. Executive Summary (Continued) Executive ...
Conventional Gasoline Imports from Non OPEC
... Iran, Iraq, Kuwait, Qatar, Saudi Arabia, and United Arab Emirates. Totals may not equal sum of components due to independent rounding.
Other Oxygenates Imports from Non OPEC
MTBE (Oxygenate) Imports from Non OPEC
U.S. Imports from Non OPEC
-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: *Countries listed under ...
Long Term World Oil Supply (A Resource Base/Production Path Analysis)
Long Term World Oil Supply Long Term World Oil Supply (A Resource Base/Production Path Analysis) 07/28/2000 Click here to start Table of Contents Long Term World Oil Supply (A Resource Base/Production Path Analysis) Executive Summary Executive Summary (Continued) Executive Summary (Continued) Overview The Year of Peak Production..When will worldwide conventional oil production peak?... Lower 48 Crude Oil Reserves & Production 1945-2000 Texas Oil and Condensate Production, and Texas First Purchase Price (FPP), 1980-1999 Published Estimates of World Oil Ultimate Recovery Different Interpretations of a Hypothetical 6,000 Billion Barrel World Original Oil-in-Place Resource Base Campbell-Laherrère World Oil Production Estimates, 1930-2050 Laherreres Oil Production Forecast, 1930-2150
ARM - PI Product - Large Scale Ice Water Path and 3-D Ice Water Content
NLE Websites -- All DOE Office Websites (Extended Search)
ProductsLarge Scale Ice Water Path and 3-D Ice Water ProductsLarge Scale Ice Water Path and 3-D Ice Water Content Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Large Scale Ice Water Path and 3-D Ice Water Content Site(s) SGP TWP General Description Cloud ice water concentration is one of the most important, yet poorly observed, cloud properties. Developing physical parameterizations used in general circulation models through single-column modeling is one of the key foci of the ARM program. In addition to the vertical profiles of temperature, water vapor and condensed water at the model grids, large-scale horizontal advective tendencies of these variables are also required as forcing terms in the single-column models. Observed horizontal advection of condensed water has not been available because the
Kerosene-Type Jet Fuel Imports from Non OPEC
Reformulated Gasoline Blending Components Imports from Non OPEC
Other Non OPEC Net Imports of Crude Oil and Petroleum ...
Indonesia withdrew from OPEC in January 2009, Angola joined OPEC in January 2007, Ecuador withdrew from OPEC in January 1993 and rejoined in November ...
Designing Soybeans for the 21st Century MarketsChapter 12 The Path to Economically Viable Foreign Protein Co-Products of Oilseeds
Designing Soybeans for the 21st Century Markets Chapter 12 The Path to Economically Viable Foreign Protein Co-Products of Oilseeds Biochemistry Biofuels - Bioproducts eChapters Food Science & Technology Health - Nutrition - Biochemistry
Lambdastation: a forwarding and admission control service to interface production network facilities with advanced research network paths
Over the past several years, there has been a great deal of research effort and funding put into the deployment of optical-based, advanced technology wide-area networks. Fermilab and CalTech have initiated a project to enable our production network facilities to exploit these advanced research network facilities. Our objective is to forward designated data transfers across these advanced wide area networks on a per-flow basis, making use our capacious production-use storage systems connected to the local campus network. To accomplish this, we intend to develop a dynamically provisioned forwarding service that would provide alternate path forwarding onto available wide area advanced research networks. The service would dynamically reconfigure forwarding of specific flows within our local production-use network facilities, as well as provide an interface to enable applications to utilize the service. We call this service LambdaStation. If one envisions wide area optical network paths as high bandwidth data railways, then LambdaStation would functionally be the railroad terminal that regulates which flows at the local site get directed onto the high bandwidth data railways. LambdaStation is a DOE-funded SciDac research project in its very early stage of development.
DeMar, Philip; Petravick, Don; /Fermilab
Global production through 2005
Two companion studies released recently should provide great food for thought among geo-political strategists and various national governments. If predictions contained in these Petroconsultants studies of oil and gas production trends for the next 10 years are realized, there will be great repercussions for net exporters and importers, alike. After analyzing and predicting trends within each of the world`s significant producing nations for the 1996--2005 period, the crude oil and condensate report concludes tat global production will jump nearly 24%. By contrast, worldwide gas output will leap 40%. The cast of characters among producers and exporters that will benefit from these increases varies considerably for each fuel. On the oil side, Russia and the OPEC members, particularly the Persian Gulf nations, will be back in the driver`s seat in terms of affecting export and pricing patterns. On the gas side, the leading producers will be an interesting mix of mostly non-OPEC countries. The reemergence of Persian Gulf oil producers, coupled with an anticipated long-term decline among top non-OPEC producing nations should present a sobering picture to government planners within large net importers, such as the US. They are likely to find themselves in much the same supply trap as was experienced in the 1970s, only this time the dependence on foreign oil supplies will be much worse. Gas supplies will not be similarly constrained, and some substitution for oil is probable. Here, two articles, ``World oil industry is set for transition`` and ``Worldwide gas surges forward in next decade,`` present a summary of the findings detailed in Petroconsultants` recent studies.
Foreman, N.E. [Petroconsultants, Inc., Houston, TX (United States)
A reactive GRASP and path relinking for a combined production-distribution problem
An NP-hard production-distribution problem for one product over a multi-period horizon is investigated. The aim is to minimize total cost taking production setups, inventory levels and distribution into account. An integer linear model is proposed as ... Keywords: Greedyrandomizedadaptivesearchprocedure, Pathrelinking, Productionplanning, Vehicle routing
M. Boudia; M. A. O. Louly; C. Prins
Path 15
Operations > Transmission Planning > Path 15 Path 15 Pictures and Videos Jan 04 Feb 04 Mar 04 Apr 04 May 04 Jun 04 Jul 04 Aug 04 Mar 06 Path 15 is an 84-mile stretch of electrical...
The Path of Carbon in Photosynthesis V. Paper Chromatography and Radioautography of the Products
DOE R&D Accomplishments (OSTI)
Detailed procedure and results for the separation and identification of labeled carboxylic acids and phosphate esters, formed during photosynthesis in C{sup 14}O{sub 2}; the first observed product of CO{sub 2} assimilation during photosynthesis was isolated and shown to be phosphoglyceric acid; tracer use of P{sup 32} and C{sup 14}.
Benson, A. A.; Bassham, J. A.; Calvin, M.; Goodale, T. C.; Haas, V. A.; Stepka, W.
World Oil Prices and Production Trends in AEO2008 (released in AEO2008)
AEO2008 defines the world oil price as the price of light, low-sulfur crude oil delivered in Cushing, Oklahoma. Since 2003, both above ground and below ground factors have contributed to a sustained rise in nominal world oil prices, from $31 per barrel in 2003 to $69 per barrel in 2007. The AEO2008 reference case outlook for world oil prices is higher than in the AEO2007 reference case. The main reasons for the adoption of a higher reference case price outlook include continued significant expansion of world demand for liquids, particularly in non- OECD countries, which include China and India; the rising costs of conventional non-OPEC supply and unconventional liquids production; limited growth in non-OPEC supplies despite higher oil prices; and the inability or unwillingness of OPEC member countries to increase conventional crude oil production to levels that would be required for maintaining price stability. EIA will continue to monitor world oil price trends and may need to make further adjustments in future AEOs.
Energy & Financial Markets - U.S. Energy Information Administration (EIA) -
Non-OPEC Non-OPEC Oil production from countries outside the Organization of the Petroleum Exporting Countries (OPEC) currently represents about 60 percent of world oil production. Key centers of non-OPEC production include North America, regions of the former Soviet Union, and the North Sea. EIA expects strong growth in non-OPEC production in 2014 and 2015. This chart shows that net increases in non-OPEC production were very small from 2005 to 2008. This lack of additional supplies from non-OPEC countries contributed to tighter markets in this period. In contrast to OPEC oil production, which is subject to central coordination, non-OPEC producers make independent decisions about oil production. Also, in contrast to OPEC, where oil production is mostly in the hands of national oil companies (NOCs), international or investor-owned
MWRRET Value-Added Product: The Retrieval of Liquid Water Path and Precipitable Water Vapor from Microwave Radiometer (MWR) Data Sets (Revision 2)
This report provides a short description of the Atmospheric Radiation Measurement (ARM) Climate Research Facility microwave radiometer (MWR) Retrieval (MWRRET) value-added product (VAP) algorithm. This algorithm utilizes a complementary physical retrieval method and applies brightness temperature offsets to reduce spurious liquid water path (LWP) bias in clear skies resulting in significantly improved precipitable water vapor (PWV) and LWP retrievals. We present a general overview of the technique, input parameters, output products, and describe data quality checks. A more complete discussion of the theory and results is given in Turner et al. (2007b).
Gaustad, KL; Turner, DD; McFarlane, SA
E-Print Network (OSTI)
The Path of Carbon in Photosynthesis, Prentice-Hall, Ino. ,to StUdy the Products of Photosynthesis as Depending on the48 THE PATH OF CARBON IN PHOTOSYNTHESIS J. A. Bassham and
Bassham, J.A.; Calvin, Melvin
Robust design as a driver of engine cylinder heads evolution : a framework for identifying product improvement paths
The fundamental goal of Robust Design is to improve the quality of a product by minimizing the effects of variation. A key contributor to robustness over the long term is R&D. Therefore, a framework is desired to help ...
G�mez de la Mora, Luz de Lourdes
Compliance Verification Paths for Residential and Commercial...
Verification Paths for Residential and Commercial Energy Codes Conformity assessment is a term used to describe the processes followed to demonstrate that a product, service,...
EIA - Annual Energy Outlook 2008 (Early Release)- Energy Prices Section
Prices Prices Annual Energy Outlook 2008 (Early Release) Energy Prices EIA has raised the reference case path for world oil prices in AEO2008 (although the upward adjustment is smaller than the last major adjustment, introduced in AEO2006). In developing its current oil price outlook, EIA explicitly considered four factors: (1) expected growth in world liquids consumption; (2) the outlook for conventional oil production in countries outside the Organization of the Petroleum Exporting Countries (non-OPEC producers); (3) growth in unconventional liquids production; and (4) OPEC behavior. Global economic growth has been strong over the past few years, despite high oil prices; and it now appears that, in the mid-term, the cost of non-OPEC conventional oil and unconventional liquids will be higher than previously assumed. As a result, in the AEO2008 reference case, OPEC and non-OPEC production volumes and total world liquids production are similar to those in the AEO2007 reference case, but the oil prices are higher.4
Residual Fuel Oil, 0.31 to 1.00% Sulfur Imports from Non OPEC
Non-OPEC oil supply outages remain above year-ago level - Today in ...
Includes hydropower, solar, wind, geothermal, biomass and ethanol. Nuclear & Uranium. Uranium fuel, nuclear reactors, generation, spent fuel. Total Energy.
Non-OPEC oil supply outages remain above year-ago level ...
Home; Browse by Tag; Most Popular Tags. electricity; oil/petroleum; liquid ... South Sudan has signed an agreement with Sudan on oil export fees and security ...
A New Path Forward
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
4, Fourth Quarter, 2011 4, Fourth Quarter, 2011 www.fossil.energy.gov/news/energytoday.html HigHligHts inside 2 A New Path Forward A Column from the Office of Fossil Energy's Chief Operating Officer 4 A Legacy of Benefit A Look at How the Office of Fossil Energy Has Returned National Benefit 5 Increasing Production and Storage New Study Explains How CO2 Injection in Oilfield Can Increase Production 6 A Medical Improvement NETL Helps Develop Improved Coronary Stents for Heart Patients 9 International Efforts CSLF Ministerial Reinforces Support for CCUS Construction activities began at an Illinois ethanol plant that will demon- strate carbon capture and storage. The project, sponsored by the Office of Fossil Energy, is the first large-scale
U.S. Products Imports
Venezuela: 77,504: 54,610: 40,571: 27,600: 30,150: 16,619: 1993-2012: Non OPEC* 1,038,505: 948,720: 823,817: 812,593: 810,872: 683,666: 1993-2012: Albania : 2005-2005 ...
Path of Carbon in Photosynthesis III
TIIE PAT3 OF C R O IN PHOTOSYNTHESIS A B K A. A. Benson andin the early products of photosynthesis, we Stepka, W. , inP THE PATH OF CARBON IN PHOTOSYNTHESIS. 111. BY A. A. Benson
Benson, A.A.; Calvin, M.
Assumptions to the Annual Energy Outlook 1999 - International...
Annual Energy Outlook 2012 (EIA)
percent per year over the forecast periodas advances in both exploration and extraction technologies result in this upward trend (Figure 3). One fixed path for non-OPEC oil...
FORSITE, a multiple-project management system: production of critical-path development schedules for geothermal electric-power-generation projects
DOE Green Energy (OSTI)
FORSITE is an advanced project monitoring software system that is designed to track and forecast the development of multiple projects. This paper describes the organization and operation of the FORSITE system including its overall structure and the functional relationships between its files and data bases. The paper also illustrates the operation of the system with an example of a generic critical-path management schedule produced by FORSITE. A program listing and schedule summaries are included as appendices.
Bernstein, A.J.; Entingh, D.J.; Gerstein, R.E.; Gould, A.V.
Nigeria`s oil production behavior: Tests of alternative hypotheses
The sudden quadrupling of world oil prices in 1973-1974 marked the beginning of several formal inquiries by economists into the production behavior of members of the Organization of the Petroleum Exporting Countries (OPEC). Interest in the organization was further heightened in 1979 when nominal oil prices further doubled. However, oil market analysts have differed in their evaluation of OPEC`s role in the determination of world oil prices. Most energy economists have modeled OPEC as a cartel. Morris Adelman has suggested that OPEC`s true nature lies somewhere between two polar cases of a dominant-firm industry and an imperfect, market-sharing cartel. In the former case, one large, dominant firm (i.e., Saudi Arabia) serves as the {open_quotes}swing producer,{close_quotes} allowing other cartel members and non-OPEC oil producers to produce whatever they wished, controlling the market price by itself through its own output adjustments. The latter case of an imperfect market-sharing cartel is a loose collusive arrangement in which all members agree on an acceptable price level and individual output shares for each producer. Adelman believes that OPEC wobbles between these two cases, depending upon market conditions.
Awokuse, T.O.; Jones, C.T.
Urban Song Paths: place resounding
The project Urban Song Paths took a traditional musical form, the Kaluli song path from Papua, New Guinea, and translated it for a contemporary urban situation. The Two Rivers Project explored a classic song path subject, the route of a ...
Viv Corringham
EnerPath | Open Energy Information
Open Energy Info (EERE)
EnerPath EnerPath Jump to: navigation, search Logo: EnerPath Name EnerPath Address 1758 Orange Tree Lane Place Redlands, California Zip 92374 Sector Buildings, Efficiency, Services Product Energy Efficiency Programs Number of employees 51-200 Website http://www.enerpath.com Coordinates 34.0678193°, -117.2147181° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.0678193,"lon":-117.2147181,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Sampling diffusive transition paths
We address the problem of sampling double-ended diffusive paths. The ensemble of paths is expressed using a symmetric version of the Onsager-Machlup formula, which only requires evaluation of the force field and which, upon direct time discretization, gives rise to a symmetric integrator that is accurate to second order. Efficiently sampling this ensemble requires avoiding the well-known stiffness problem associated with sampling infinitesimal Brownian increments of the path, as well as a different type of stiffness associated with sampling the coarse features of long paths. The fine-features sampling stiffness is eliminated with the use of the fast sampling algorithm (FSA), and the coarse-feature sampling stiffness is avoided by introducing the sliding and sampling (S&S) algorithm. A key feature of the S&S algorithm is that it enables massively parallel computers to sample diffusive trajectories that are long in time. We use the algorithm to sample the transition path ensemble for the structural interconversion of the 38-atom Lennard-Jones cluster at low temperature.
F. Miller III, Thomas; Predescu, Cristian
By Terry Engelder and Gary G. Lash UNIVERSITY PARK, PA.The shale gas rush is on. Excitement over natural gas production from a
By Terry Engelder and Gary G. Lash UNIVERSITY PARK, PA.The shale gas rush is on. Excitement over natural gas production from a number of Devonian-Mississippian black shales such as the Barnett by the Eastern Gas Shales Project (EGSP), a U.S. Department of Energy-sponsored investigation of gas potential
Engelder, Terry
and Colombia) making the largest contribution to non-OPEC production additions. North Sea production increased only about 0.2 million barrels per day as some new field...
Integrative path planning and motion control for handling large components
For handling large components a large workspace and high precision are required. In order to simplify the path planning for automated handling systems, this task can be divided into global, regional and local motions. Accordingly, different types of ... Keywords: integrative production, motion control, path planning, robotic assembly application
Rainer M�ller; Martin Esser; Markus Janssen
Finding many optimal paths without growing any optimal path trees
Many algorithms seek to compute actual optimal paths in weighted directed graphs. The standard approach for reporting an actual optimal path is based on building a single-source optimal path tree. A technique was given in [1] for a class of problems ...
Danny Z. Chen; Ewa Misiolek
EIA - International Energy Outlook 2007-Petroleum and Other Liquid...
Energy Information Center at 202-586-8800. Figure 36. OPEC and Non-OPEC Conventional and Unconventional Liquids Production, 1980-2030 Figure 36 Data. Need help, contact the...
Mexico - U.S. Energy Information Administration (EIA)
Mexico is a major non-OPEC oil producer and among the largest sources of U.S. oil imports. Mexico's oil production has declined in recent years, as ...
Note: Counting humps in Motzkin paths
In this paper we study the number of humps (peaks) in Dyck, Motzkin and Schroder paths. Recently A. Regev noticed that the number of peaks in all Dyck paths of order n is one half of the number of super-Dyck paths of order n. He also computed the number ... Keywords: Dyck paths, Humps, Motzkin paths, Narayana number, Peaks, Schr�der paths
Yun Ding; Rosena R. X. Du
Aluminum Production Paths in the New Millennium
Electrochemical technologies face the same problems and challenges as present ... The driving force for developing new processes for aluminum smelting�...
The Path of Carbon in Photosynthesis. XVIII The Identification of Nucleotide Coenzymes
TIU PATH OF CARBON IN PHOTOSYNTHESIS, XBIII ~m ~IUIFIGATIONof the products of photosynthesis, a dark area appeared in aabout 30 seconds of normal photosynthesis by all the plants
Buchanan, J.G.; Lynch, V.H.; Benson, A.A.; Calvin, M.; Bradley, D.F.
Thermodynamic Metrics and Optimal Paths
Thermodynamic metrics and optimal paths David A. Sivak ? andmanifold on the space of thermodynamic states. Within theconnection to the existing thermodynamic length formalism,
Sivak, David
Collabortive Authoring of Walden's Paths
Collaborative Authoring of Walden's Paths. Theory and Practice of Digital Libraries. Lecture Notes in Computer Sciences 2012.Lecture Notes in Computer Sciences 2012
Yuanling, Dr. Li [Texas A& M University; Bogen, Paul Logasa [ORNL; Pogue, Daniel [Halliburton Energy Services; Furuta, Dr. Richard Keith [Texas A& M University; ShipmanIII, Dr. Frank Major [Texas A& M University
Classicalization via Path Integral
Recently, it was suggested that a large class of non-renormalizable theories may need no UV completion. By analogy with gravity where classical black holes are expected to be created in high-energy scatterings, it is conjectured that similar classical solutions, so-called classicalons, should occur. In this way the theory protects itself against non-unitarity, for instead of probing small distances at high energies one enters a classical regime. An effective theory of Goldstone bosons provides and example in which the size of classicalons grows with energy, and the high energy scattering is cut-off by small momenta, inversely proportional to the classicalon size. In this note we offer an alternative, path integral discussion of this important result.
Borut Bajc; Arshad Momen; Goran Senjanovi?
Bajc, Borut; Senjanovi?, Goran
Contemporary data path design optimization
power consumption, instead of performance, becomes the most critical concern in many data-path designs, especially for mobile devicePower consumption becomes more critical issue than performance in modern data-path designs, especially for mobile devicepower consumption. Furthermore, we also implement the PST algorithm on both ASIC and FPGA devices
Liu, Jianhua
Path skyline for moving objects
Skyline query has been used mainly for relatively static and low dimensional data sets. We develop the Skyline query for the moving objects coping with dynamic changes efficiently. This study is focused on deriving a fundamental algorithm for extracting ... Keywords: moving objects, path skyline, shortest path
Wookey Lee; Chris Soo-Hyun Eom; Tae-Chang Jo
GPU-accelerated path rendering
For thirty years, resolution-independent 2D standards (e.g. PostScript, SVG) have depended on CPU-based algorithms for the filling and stroking of paths. Advances in graphics hardware have largely ignored accelerating resolution-independent 2D graphics ... Keywords: OpenGL, path rendering, stencil buffer, vector graphics
Mark J. Kilgard; Jeff Bolz
The Path of Carbon in Photosynthesis VI.
PATH OF CkRBON IN PHOTOSYNTHESIS. VI. * Ni. Calvin Radiationdetermination of the path of carbon in photosynthesis. Theredark fixation of photosynthesis and methods of separation
Calvin, M.
Physarum can compute shortest paths
Physarum Polycephalum is a slime mold that apparently is able to solve shortest path problems. A mathematical model has been proposed by biologists to describe the feedback mechanism used by the slime mold to adapt its tubular channels while foraging ...
Vincenzo Bonifaci; Kurt Mehlhorn; Girish Varma
Survivable paths in multilayer networks
We consider the problem of protection in multilayer networks. In single-layer net- works, a pair of disjoint paths can be used to provide protection for a source-destination pair. However, this approach cannot be directly ...
Parandehgheibi, Marzieh
Learning for informative path planning
Through the combined use of regression techniques, we will learn models of the uncertainty propagation efficiently and accurately to replace computationally intensive Monte- Carlo simulations in informative path planning. ...
Park, Sooho, S.M. Massachusetts Institute of Technology
Profiling all paths: A new profiling technique for both cyclic and acyclic paths
As an important technique in dynamic program analysis, path profiling collects the execution frequency of different paths, and has been widely used in a variety of areas. However, existing intra-procedural profiling techniques cannot effectively deal ... Keywords: Breakpoint, Cyclic paths, Dynamic analysis, Path backwalk, Path profiling, Probe instrumentation
Bixin Li; Lulu Wang; Hareton Leung; Fei Liu
Designing Snakey: A Tangible User Interface Supporting Well Path Planning
is a fundamental task present in different stages of oil/gas field development from early exploration to production intuitive manipulation and interaction with 3D curves, common to underground well path exploration, but rather to augment them with tangible and collaborative interaction, facilitating spatial exploration
Networks in Buildings: Which Path Forward?
Networks in Buildings: Which Path Forward? Networks in Buildings: Which Path Forward? Title Networks in Buildings: Which Path Forward? Publication Type Conference Paper LBNL Report Number LBNL-2511E Year of Publication 2008 Authors Nordman, Bruce Conference Name 2008 ACEEE Summer Study on Energy Efficiency in Buildings Conference Location Pacific Grove, CA Keywords communication and standards, technologies Abstract To date, digital networks have principally been installed for connecting information technology devices, with more modest use in consumer electronics, security, and large building control systems. The next 20 years will see much greater deployment of networks in buildings of all types, and across all end uses. Most of these are likely to be introduced primarily for reasons other than energy efficiency, and add energy use for network interfaces and network products. Widespread networking could easily lead to increased energy use, and experience with IT and CE networks suggests this may be likely. Active engagement by energy efficiency professionals in the architecture and design of future networks could lead to their being a large and highly cost-effective tool for efficiency. However, network standards are complex and take many years to develop and negotiate so that lack of action on this in the near term may foreclose important opportunities for years or decades to come. Digital networks need to be common globally, providing another challenge to building systems and elements that are more commonly designed only for national or regional markets. Key future networks are lighting, climate control, and security/presence. This paper reviews some examples of past network designs and use and the lessons they hold for future building networks. It also highlights key needed areas for research, policy, and standards development.
The Path ot Carbon in Photosynthesis. Science" l2J. , 476 (48 THE PATH OF CARBON IN PHOTOSYNTHESIS Melvin Calvin Nobel8-A Fig. 1. Elementary photosynthesis scheme. DES IOU OF THE
Calvin, Melvin Nobel Prize lecture
China Energy and Emissions Path to 2030
China Energy and Emissions Path to 2030 Title China Energy and Emissions Path to 2030 Publication Type Report LBNL Report Number LBNL-4866E Year of Publication 2013 Authors...
Field Guide: Turbine Steam Path Damage
Steam path damage, particularly of blades, has long been recognized as a leading cause of steam turbine unavailability for large fossil fuel plants. Damage to steam path components by various mechanisms continues to result in significant economic impact domestically and internationally. Electric Power Research Institute (EPRI) Report TR-108943, Turbine Steam Path Damage: Theory and Practice, Volumes 1 and 2, was prepared to compile the most recent knowledge about turbine steam path damage: identifying th...
Accelerating cleanup: Paths to closure
This document was previously referred to as the Draft 2006 Plan. As part of the DOE`s national strategy, the Richland Operations Office`s Paths to Closure summarizes an integrated path forward for environmental cleanup at the Hanford Site. The Hanford Site underwent a concerted effort between 1994 and 1996 to accelerate the cleanup of the Site. These efforts are reflected in the current Site Baseline. This document describes the current Site Baseline and suggests strategies for further improvements in scope, schedule and cost. The Environmental Management program decided to change the name of the draft strategy and the document describing it in response to a series of stakeholder concerns, including the practicality of achieving widespread cleanup by 2006. Also, EM was concerned that calling the document a plan could be misconstrued to be a proposal by DOE or a decision-making document. The change in name, however, does not diminish the 2006 vision. To that end, Paths to Closure retains a focus on 2006, which serves as a point in time around which objectives and goals are established.
Edwards, C.
Stochastic path tracing on consumer graphics cards
We present a path tracer using the GPU of a consumers graphics card to render images. It is implemented in Java and GLSL using GroIMP as modelling platform and runtime environment. The path tracer is capable of rendering primitives like sphere, cone, ... Keywords: GPU, HDR, global illumination, path tracing, procedural texturing, raytracing, texture mapping
Thomas Huwe; Reinhard Hemmerling
U.S. Energy Information Administration (EIA) - Topics
Energy Prices AEO 2011 Prices Energy Prices AEO 2011 Prices Mkt trends Market Trends World oil prices in AEO2011, defined in terms of the average price of low-sulfur, light crude oil delivered to Cushing, Oklahoma, span a broad range that reflects the inherent volatility and uncertainty of world oil prices (Figure 52). The AEO2011 price paths are not intended to reflect absolute bounds for future oil prices, but rather to allow analysis of the implications of world oil market conditions that differ from those assumed in the AEO2011 Reference case. The Reference case assumes a continuation of current trends in terms of economic access to non-OPEC resources, the OPEC market share of world production, and global economic growth. See more figure data Reference Case Tables Table 1. Total Energy Supply, Disposition, and Price Summary XLS
There are serious concerns about the greenhouse gas (GHG) emissions, energy and nutrient and water use efficiency of large-scale, first generation bio-energy feedstocks currently in use. A major question is whether biofuels obtained from these feedstocks are effective in combating climate change and what impact they will have on soil and water resources. Another fundamental issue relates to the magnitude and nature of their impact on food prices and ultimately on the livelihoods of the poor. A possible solution to overcome the current potentially large negative effects of large-scale biofuel production is developing second and third generation conversion techniques from agricultural residues and wastes and step up the scientific research efforts to achieve sustainable biofuel production practices. Until such sustainable techniques are available governments should scale back their support for and promotion of biofuels. Multipurpose feedstocks should be investigated making use of the bio-refinery concept (bio-based economy). At the same time, the further development of non-commercial, small scale
Science Council Secretariat
Building Energy Software Tools Directory: Sol Path
Sol Path Sol Path Sol Path logo. Graphically displays path of sun in the sky for any date and location. Good for quickly obtaining rough sun angle data, or understanding the general nature of the sun's motion. Screen Shots Keywords solar, sun, sun path Validation/Testing N/A Expertise Required None required. Users Several hundred regular users, split approximately evenly between U.S. and other countries. Audience Architects, energy analysts, home owners, educators. Input Location, date. Output Graphical display of sun path in the sky. Computer Platform Web Programming Language Macromedia Director / Shockwave Strengths Easy to use, instantaneous graphical output. Weaknesses Sometimes displays incomplete results for equatorial regions (latitude < 23 degrees). Contact Company: Sustainable By Design
GRASP and path-relinking
Apr 6, 2003 ... problem defined by a cost function f and a set of feasible solutions X, where we seek an optimal ..... Scheduling terrestrial oil production drills.
48 THE PATH OF O Y m IN PHOTOSYNTHESIS X G Go D, Dorough andTm PATH OF O Y E I N PHOTOSYNTHESIS X G N by Go D, Doroughe s e workers found that, photosynthesis i s represented by
Dorough, G.D.; Calvin, M.
This paper is a compilation of the essential results of our experimental work in the determination of the path of carbon in photosynthesis. There are discussions of the dark fixation of photosynthesis and methods of separation and identification including paper chromatography and radioautography. The definition of the path of carbon in photosynthesis by the distribution of radioactivity Within the compounds is described.
Path dependent analysis of logic programs
This paper presents an abstract semantics that uses information about execution paths to improve precision of data flow analyses of logic programs. We illustrate the abstract semantics by abstracting execution paths using call strings of fixed length ... Keywords: Abstract interpretation, Call strings, Context sensitive analysis
Lunjin Lu
Path Dependent Analysis of Logic Programs
This paper presents an abstract semantics that uses information about execution paths to improve precision of data flow analyses of logic programs. The abstract semantics is illustrated by abstracting execution paths using call strings of fixed length ... Keywords: abstract interpretation, call strings, context sensitive analysis
Bootstrapping path-based pronoun resolution
We present an approach to pronoun resolution based on syntactic paths. Through a simple bootstrapping procedure, we learn the likelihood of coreference between a pronoun and a candidate noun based on the path in the parse tree between the two entities. ...
Shane Bergsma; Dekang Lin
This paper is a compilation of the essential results of our experimental work in the determination of the path of carbon in photosynthesis. There are discussions of the dark fixation of photosynthesis and methods of separation and identification including paper chromatography and radioautography. The definition of the path of carbon in photosynthesis by the distribution of radioactivity within the compounds is described.
Deep Space Formation Flying Spacecraft Path Planning
Efficient algorithms for collision-free energy sub-optimal path planning for formations of spacecraft flying in deep space are presented. The idea is to introduce a set of way-points through which the spacecraft are required to pass, combined with ... Keywords: formation flying spacecraft, path planning for multiple mobile robot systems, trajectory generation
Cornel Sultan; Sanjeev Seereram; Raman K. Mehra
Evaluation of Calcine Disposition Path Forward
This document describes an evaluation of the baseline and two alternative disposition paths for the final disposition of the calcine wastes stored at the Idaho Nuclear Technology and Engineering Center at the Idaho National Engineering and Environmental Laboratory. The pathways are evaluated against a prescribed set of criteria and a recommendation is made for the path forward.
Birrer, S.A.; Heiser, M.B.
Evaluation of Calcine Disposition - Path Forward
Steve Birrer
On-The-Fly Path Reduction
Path reduction is a well-known technique to alleviate the state-explosion problem incurred by explicit-state model checking, its key idea being to store states only at predetermined breaking points. This paper presents an adaptation of this technique ... Keywords: model checking, path reduction, state explosion, verification
Sebastian Biallas; J�rg Brauer; Dominique G�ckel; Stefan Kowalewski
A Path to Collaborative Strategic Learning
Collaborative learning is critical for the future of any organization and must align with the strategic organizational processes that result in products valued by others. To discover these processes, proposal preparation is explored using topic-oriented ethnography, grounded theory, and an innovative addition to qualitative interviewing, called metainquiry. Using interview data from editors, graphic artists, text processors, scientists, engineers, and technical managers, substantive theory emerges. The research discovers the five essential processes of owning, visioning, reviewing, producing, and contributing needed for organizational strategic learning to occur. The dimensions of these processes are made explicit and can be used to gauge the health of any organization. The substantive theory also provides insight into the ability of collaborative learning to evolve, flourish, and adapt to the strategic advantage of the organization. Lastly, actionable goals with ten essential elements emerge that link owning, visioning, reviewing, producing, and contributing as a path for all organizations to follow to promote collaborative learning communities and enhance their competitive advantage.
Nancy M. Carlson
BrightPath Energy LLC | Open Energy Information
New York . References "BrightPath Energy LLC" Retrieved from "http:en.openei.orgwindex.php?titleBrightPathEnergyLLC&oldid343040" Categories: Clean Energy Organizations...
Event:Lighting Our Path: The Philips Experience in Promoting...
Lighting Our Path: The Philips Experience in Promoting Advanced Lighting Technologies Jump to: navigation, search Calendar.png Lighting Our Path: The Philips Experience in...
Feasible Offset Region Based Tool Path Planning for Face Milling
Path Planning for Face Milling, Masters Report, UniversityPath Planning for Face Milling Prabhu Ramachandran Sponsoredburr formation while face milling powertrain components in
Ramachandran, Prabhu; Dornfeld, David A
Briefing: DOE EM Landfill Workshop & Path Forward | Department...
Landfill Workshop & Path Forward Briefing: DOE EM Landfill Workshop & Path Forward By: Office of Groundwater and Soil Remediation Where: SSAB Teleconference 2 Subject: DOE EM...
An experiment is described in which an attempt is made to follow the path of oxygen in photosynthesis by the use of O{sup 18} as a tracer.
Geomagnetic Reversals: Rates, Timescales, Preferred Paths,
Geomagnetic Reversals: Rates, Timescales, Preferred Paths, Statistical Models and Simulations: Geomagnetic reversals, Reversal rates, Paleointensity, Statistics of Geodynamo September 30, 2001 #12;Abstract Paleomagnetic data on geomagnetic reversals are divided into two general categories: times of occurrence
Constable, Catherine G.
Steam Path Audits on Industrial Steam Turbines
The electric utility industry has benefitted from steam path audits on steam turbines for several years. Benefits include the ability to identify areas of performance degradation during a turbine outage. Repair priorities can then be set in accordance with quantitative results from the steam path audit. As a result of optimized repair decisions, turbine efficiency increases, emissions decrease, and maintenance expenses decrease. These benefits can be achieved by using a computer program Encotech, Inc. developed for the utility industry to perform steam path audits. With the increased emphasis on industrial turbine efficiency, and as a result of the experience with the Destec Operating Company, Encotech is adapting the computer program to respond to the needs of the industrial steam turbine community. This paper describes the results of using the STPE computer program to conduct a steam path audit at Destec Energy's Lyondell Cogeneration power plant.
Mitchell, D. R.
Path integration for light transport in volumes
Simulating the transport of light in volumes such as clouds or objects with subsurface scattering is computationally expensive. We describe an approximation to such transport using path integration. Unlike the more commonly used diffusion approximation, ...
Simon Premo�e; Michael Ashikhmin; Peter Shirley
Path inference in data center networks
Path inference is the ability to determine the sequence of devices traversed by a packet within an IP network. This is a fundamental building block for several network and service management applications such as troubleshooting, planning, and ...
Kyriaki Levanti, Vijay Gopalakrishnan, Hyong S. Kim, Seungjoon Lee, Emmanuil Mavrogiorgis, Aman Shaikh
Definition: Scheduling Path | Open Energy Information
Scheduling Path Scheduling Path Jump to: navigation, search Dictionary.png Scheduling Path The Transmission Service arrangements reserved by the Purchasing-Selling Entity for a Transaction.[1] Related Terms transmission lines, Purchasing-Selling Entity, Transmission Service, transmission line References ↑ Glossary of Terms Used in Reliability Standards An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Scheduling_Path&oldid=480301" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation:
Manhattan Project: The Plutonium Path to the Bomb, 1942-1944
Office of Scientific and Technical Information (OSTI)
Painting of CP-1 going critical THE PLUTONIUM PATH TO THE BOMB Painting of CP-1 going critical THE PLUTONIUM PATH TO THE BOMB (1942-1944) Events > The Plutonium Path to the Bomb, 1942-1944 Production Reactor (Pile) Design, 1942 DuPont and Hanford, 1942 CP-1 Goes Critical, December 2, 1942 Seaborg and Plutonium Chemistry, 1942-1944 Final Reactor Design and X-10, 1942-1943 Hanford Becomes Operational, 1943-1944 Plutonium, produced in a uranium-fueled reactor (pile), was the second path taken toward achieving an atomic bomb. Design work on a full-scale plutonium production reactor began at the Met Lab in June 1942. Scientists at the Met Lab had the technical expertise to design a production pile, but construction and management on an industrial scale required an outside contractor. General Groves convinced the DuPont Corporation to become the primary contractor for plutonium production. With input from the Met Lab and DuPont, Groves selected a site at Hanford, Washington, on the Columbia River, to build the full-scale production reactors.
A survey on coverage path planning for robotics
Coverage Path Planning (CPP) is the task of determining a path that passes over all points of an area or volume of interest while avoiding obstacles. This task is integral to many robotic applications, such as vacuum cleaning robots, painter robots, ... Keywords: Coverage path planning, Motion planning, Path planning
Enric Galceran, Marc Carreras
Modelling pronunciation variation with single-path and multi-path syllable models: Issues to consider
In this paper, we construct context-independent single-path and multi-path syllable models aimed at improved pronunciation variation modelling. We use phonetic transcriptions to define the topologies of the syllable models and to initialise the model ... Keywords: ASR, HMM, Pronunciation variation, Syllable, Topology
Annika H�m�l�inen; Louis ten Bosch; Lou Boves
Drewry: Mideast in firm control of world oil supplies for 1990s
Surging economic growth in the Far East will push up world crude oil demand steadily in the 1990s despite the current economic downturn. It will fall to members of the Organization of Petroleum Exporting Countries to meet that increased demand, given the expected decline in non-OPEC production. And because OPEC members in the Persian Gulf region are best positioned to meet the increase, the balance of power in oil markets will shift even more in favor of the Middle East. Seaborne oil exports from the Middle East will jump almost 30% by 1997 from 1991 levels. There will be a worldwide rise of 16% in the volume of seaborne crude oil trade, with a 29% hike in movements of refined products by tanker. Those are among the findings of a report by Drewry Shipping Consultants Ltd., London. Drewry said, It is expected that 1992 will be a low point in non-OPEC output and that production levels will recover steadily from 1993 onward, although not rapidly enough to match the anticipated rise in demand. Drewry estimates non-OPEC production in 1997 at 37.1 million b/d vs. 38.1 million b/d in 1991. With non-OPEC production falling by 2.6% between 1991 and 1997, OPEC producers will have the scope to increase their output by almost 32% over the same period.
A taxonomy of integral reaction path analysis
W. C. Gardiner observed that achieving understanding through combustion modeling is limited by the ability to recognize the implications of what has been computed and to draw conclusions about the elementary steps underlying the reaction mechanism. This difficulty can be overcome in part by making better use of reaction path analysis in the context of multidimensional flame simulations. Following a survey of current practice, an integral reaction flux is formulated in terms of conserved scalars that can be calculated in a fully automated way. Conditional analyses are then introduced, and a taxonomy for bidirectional path analysis is explored. Many examples illustrate the resulting path analysis and uncover some new results about nonpremixed methane-air laminar jets.
Grcar, Joseph F.; Day, Marcus S.; Bell, John B.
Path specialization: reducing phased execution overheads
As garbage collected languages become widely used, the quest for reducing collection overheads becomes essential. In this paper, we propose a compiler optimization called path specialization that shrinks the cost of memory barriers for a wide ... Keywords: c#, garbage collection, memory management, read barriers, write barriers
Filip Pizlo; Erez Petrank; Bjarne Steensgaard
Current SPE Hydrodynamic Modeling and Path Forward
Extensive work has been conducted on SPE analysis efforts: Fault effects Non-uniform weathered layer analysis MUNROU: material library incorporation, parallelization, and development of non-locking tets Development of a unique continuum-based-visco-plastic strain-rate-dependent material model With corrected SPE data path is now set for a multipronged approach to fully understand experimental series shot effects.
Knight, Earl E. [Los Alamos National Laboratory; Rougier, Esteban [Los Alamos National Laboratory
Path selection in multi-layer networks
Multi-layer networks are computer networks where the configuration of the network can be changed dynamically at multiple layers. However, in practice, technologies at different layers may be incompatible to each other, which necessitates a careful choice ... Keywords: Multi-layer network, Network description, Path selection
Fernando Kuipers; Freek Dijkstra
PHAST: Hardware-Accelerated Shortest Path Trees
We present a novel algorithm to solve the nonnegative single-source shortest path problem on road networks and other graphs with low highway dimension. After a quick preprocessing phase, we can compute all distances from a given source in the graph with ...
Daniel Delling; Andrew V. Goldberg; Andreas Nowatzyk; Renato F. Werneck
VC-dimension and shortest path algorithms
We explore the relationship between VC-dimension and graph algorithm design. In particular, we show that set systems induced by sets of vertices on shortest paths have VC-dimension at most two. This allows us to use a result from learning theory to improve ...
Ittai Abraham; Daniel Delling; Amos Fiat; Andrew V. Goldberg; Renato F. Werneck
Learning to improve path planning performance
In robotics, path planning refers to finding a short. collision-free path from an initial robot configuration to a desired configuratioin. It has to be fast to support real-time task-level robot programming. Unfortunately, current planning techniques are still too slow to be effective, as they often require several minutes, if not hours of computation. To remedy this situation, we present and analyze a learning algorithm that uses past experience to increase future performance. The algorithm relies on an existing path planner to provide solutions to difficult tasks. From these solutions, an evolving sparse network of useful robot configurations is learned to support faster planning. More generally, the algorithm provides a speedup-learning framework in which a slow but capable planner may be improved both cost-wise and capability-wise by a faster but less capable planner coupled with experience. The basic algorithm is suitable for stationary environments, and can be extended to accommodate changing environments with on-demand experience repair and object-attached experience abstraction. To analyze the algorithm, we characterize the situations in which the adaptive planner is useful, provide quantitative bounds to predict its behavior, and confirm our theoretical results with experiments in path planning of manipulators. Our algorithm and analysis are sufficiently, general that they may also be applied to other planning domains in which experience is useful.
Chen, Pang C.
A Potential Path to Emissions-Free Fossil EnergyA Potential Path...
3 A Potential Path to Emissions-Free Fossil Energy The National Energy Technology Laboratory's chemical looping reactor, above, is the only one of its kind in the Western...
Self-Adjusting Networks to Minimize Expected Path Length
Given a network infrastructure (e.g., a grid, data-center or on-chip-network) and a distribution on the source-destination requests, the expected path (route) length is an important measure for the performance, efficiency and power consumption of the network. In this work we initiate a study on self-adjusting networks: networks that use local-distributed mechanisms to adjust the position of the nodes in the network to any distribution of route requests. Finding the optimal placement of nodes is defined as the minimum expected path length (MEPL) problem. While, as we show, the MEPL problem is NP-hard to solve exactly in general we give efficient and simple approximation algorithms for interesting and practically relevant special cases of the problem. E.g., we consider grid networks in which the distribution of requests is a symmetric product distribution. In this setting we show that simple greedy switches, which locally minimize an objective function, achieve good approximation ratios. We are able to prove th...
Avin, Chen; Haeupler, Bernhard; Lotker, Zvi
From Salesman to CEO: A 45-year Path to Energy Efficiency | Department of
From Salesman to CEO: A 45-year Path to Energy Efficiency From Salesman to CEO: A 45-year Path to Energy Efficiency From Salesman to CEO: A 45-year Path to Energy Efficiency October 15, 2010 - 10:50am Addthis Ohio Governor Ted Strickland (left) got a tour of the New Horizons Baking Company with CEO Tim Brown this winter to announce the grant.| Photo courtesy of New Horizons Baking Company Ohio Governor Ted Strickland (left) got a tour of the New Horizons Baking Company with CEO Tim Brown this winter to announce the grant.| Photo courtesy of New Horizons Baking Company Stephen Graff Former Writer & editor for Energy Empowers, EERE What are the key facts? State Energy Program award helped New Horizons Baking Company purchase energy-efficient oven Oven is 25% more efficient and increased production by 20% Certified minority-owned company stays cost-competitive and retains
Terminal area flight path generation using parallel constraint propagation
A Flight Path Generator is defined as the module of an automated Air Traffic Control system which plans aircraft trajectories in the terminal area with respect to operational constraints. The flight path plans have to be ...
Sadoune, Michel
China Energy and Emissions Paths to 2030 (2nd Edition)
China Energy and Emissions Paths to 2030 (2nd Edition) Title China Energy and Emissions Paths to 2030 (2nd Edition) Publication Type Report Year of Publication 2012 Authors...
A Potential Path to Emissions-Free Fossil Energy | Department...
A Potential Path to Emissions-Free Fossil Energy A Potential Path to Emissions-Free Fossil Energy August 20, 2013 - 10:00am Addthis The National Energy Technology Laboratory's...
Experimental and numerical investigation of phonon mean free path distribution
Knowledge of phonon mean free path (MFP) distribution is critically important to engineering size effects. Phenomenological models of phonon relaxation times can give us some sense about the mean free path distribution, ...
Zeng, Lingping
The path forward: Monte Carlo Convergence discussion
This is a summary of 'the path forward' discussion session of the NuInt09 workshop which focused on Monte Carlo event generators. The main questions raised as part of this discussion are: how to make Monte Carlo generators more reliable and how important it is to work on a universal Monte Carlo generator of events? In this contribution, several experts in the field summarize their views, as presented at the workshop.
Andreopoulos, Costas [Rutherford Appleton Laboratory, STFC Oxfordshire OX11 0QX (United Kingdom); Gallagher, Hugh [Tufts University, Medford, Massachusetts (United States); Hayato, Yoshinari [Kamioka Observatory, ICRR, University of Tokyo Higashi-Mozumi 456, Kamioka-cho, Hida-city Gifu 506-1205 (Japan); Sobczyk, Jan T. [Institute of Theoretical Physics, Wroclaw, University Poland (Poland); Walter, Chris [Department of Physics, Duke University, Durham, NC 27708 (United States); Zeller, Sam [Los Alamos National Laboratory, Los Alamos, NM (United States)
Free Energy Changes, Fluctuations, and Path Probabilities
We illustrate some of the static and dynamic relations discovered by Cohen, Crooks, Evans, Jarzynski, Kirkwood, Morriss, Searles, and Zwanzig. These relations link nonequilibrium processes to equilibrium isothermal free energy changes and to dynamical path probabilities. We include ideas suggested by Dellago, Geissler, Oberhofer, and Schoell-Paschinger. Our treatment is intended to be pedagogical, for use in an updated version of our book: Time Reversibility, Computer Simulation, and Chaos. Comments are very welcome.
William G. Hoover; Carol G. Hoover
Automatic tool path generation for finish machining
A system for automatic tool path generation was developed at Sandia National Laboratories for finish machining operations. The system consists of a commercially available 5-axis milling machine controlled by Sandia developed software. This system was used to remove overspray on cast turbine blades. A laser-based, structured-light sensor, mounted on a tool holder, is used to collect 3D data points around the surface of the turbine blade. Using the digitized model of the blade, a tool path is generated which will drive a 0.375 inch diameter CBN grinding pin around the tip of the blade. A fuzzified digital filter was developed to properly eliminate false sensor readings caused by burrs, holes and overspray. The digital filter was found to successfully generate the correct tool path for a blade with intentionally scanned holes and defects. The fuzzified filter improved the computation efficiency by a factor of 25. For application to general parts, an adaptive scanning algorithm was developed and presented with simulation results. A right pyramid and an ellipsoid were scanned successfully with the adaptive algorithm.
Kwok, Kwan S.; Loucks, C.S.; Driessen, B.J.
A secure alternate path routing in sensor networks
This paper presents a secure alternate path routing in sensor networks. Our alternate path scheme makes the routing protocol resilient in the presence of malicious nodes that launch selective forwarding attacks. SeRINS (a Secure alternate path Routing ... Keywords: Secure routing, Sensor network security
Suk-Bok Lee; Yoon-Hwa Choi
Manhattan Project: The Uranium Path to the Bomb, 1942-1944
Alpha Racetrack, Y-12 Electromagnetic Plant, Oak Ridge THE URANIUM PATH TO THE BOMB Alpha Racetrack, Y-12 Electromagnetic Plant, Oak Ridge THE URANIUM PATH TO THE BOMB (1942-1944) Events > The Uranium Path to the Bomb, 1942-1944 Y-12: Design, 1942-1943 Y-12: Construction, 1943 Y-12: Operation, 1943-1944 Working K-25 into the Mix, 1943-1944 The Navy and Thermal Diffusion, 1944 The uranium path to the atomic bomb ran through Oak Ridge, Tennessee. Only if the new plants built at Oak Ridge produced enough enriched uranium-235 would a uranium bomb be possible. General Groves placed two methods into production: 1) electromagnetic, based on the principle that charged particles of the lighter isotope would be deflected more when passing through a magnetic field; and 2) gaseous diffusion, based on the principle that molecules of the lighter isotope, uranium-235, would pass more readily through a porous barrier. Full-scale electromagnetic and gaseous diffusion production plants were built at Oak Ridge at sites designated as "Y-12" and "K-25", respectively.
Turbine Steam Path Damage: Theory and Practice
Historically, most treatises about steam turbines have concentrated on thermo-dynamics or design. In contrast, the primary focus of this book is on the problems that occur in the turbine steam path. Some of these problems have been long known to the industry, starting as early as A. Stodola's work at the turn of the century in which mechanisms such as solid particle erosion, corrosion and liquid droplet damage were recognized. What we have tried to do here is to provide, in a single, comprehensive refere...
The Path to Magnetic Fusion Energy
When the possibility of fusion as an energy source for electricity generation was realized in the 1950s, understanding of the plasma state was primitive. The fusion goal has been paced by, and has stimulated, the development of plasma physics. Our understanding of complex, nonlinear processes in plasmas is now mature. We can routinely produce and manipulate 100 million degree plasmas with remarkable finesse, and we can identify a path to commercial fusion power. The international experiment, ITER, will create a burning (self-sustained) plasma and produce 500 MW of thermal fusion power. This talk will summarize the progress in fusion research to date, and the remaining steps to fusion power.
Prager, Stewart (PPPL)
1E 1E Networks in Buildings: Which Path Forward? B. Nordman Environmental Energy Technologies Division August 2008 Presented at the 2008 ACEEE Summer Study on Energy Efficiency in Buildings Pacific Grove, CA, August 17-22, 2008, and published in the Proceedings DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes
Two Paths to Transforming Markets through Public Sector Energy Efficiency:
Two Paths to Transforming Markets through Public Sector Energy Efficiency: Two Paths to Transforming Markets through Public Sector Energy Efficiency: Bottom Up versus Top Down Title Two Paths to Transforming Markets through Public Sector Energy Efficiency: Bottom Up versus Top Down Publication Type Conference Paper LBNL Report Number LBNL-60144 Year of Publication 2006 Authors McGrory, Laura Van Wie, Philip Coleman, David Fridley, Jeffrey P. Harris, and Edgar Villasenor Franco Conference Name 2006 ACEEE Summer Study on Energy Efficiency in Buildings Date Published 08/2006 Conference Location Pacific Grove, CA Abstract The evolution of government purchasing initiatives in Mexico and China, part of the PEPS (Promoting an Energy-efficient Public Sector) program, demonstrates the need for flexibility in designing energy-efficiency strategies in the public sector. Several years of pursuing a top-down (federally led) strategy in Mexico produced few results, and it was not until the program was restructured in 2004 to focus on municipal-level purchasing that the program gained momentum. Today, a new partnership with the Mexican federal government is leading to an intergovernmental initiative with strong support at the federal level. By contrast, the PEPS purchasing initiative in China was successfully initiated and led at the central government level with strategic support from international experts. The very different success trajectories in these two countries provide valuable lessons for designing country-specific public sector energy-efficiency initiatives. Enabling conditions for any successful public sector purchasing initiative include the existence of mandatory energy-efficiency performance standards, an effective energy-efficiency endorsement labeling program, an immediate need for energy conservation, a simple pilot phase (focusing on a limited number of strategically chosen products), and specialized technical assistance. Top-down purchasing programs are likely to be more successful where there is high-level political endorsement and a national procurement law in place, supported by a network of trained purchasers. Bottom-up (municipally led) purchasing programs require that municipalities have the authority to set their own purchasing policies, and also benefit from existing networks of cities, supported by motivated municipal leaders and trained purchasing officials.
3D Nanostructured Bicontinuous Electrodes: Path to Ultra-High ...
3D Nanostructured Bicontinuous Electrodes: Path to Ultra-High Power and Energy ... High Energy Density Lithium Capacitors Using Carbon-Carbon Electrodes.
Feb 16, 2010 ... double facility-to-location moves sampled. Procedure PathRelinking takes as input 8 user-defined parameters that deter- mine, among many�...
A Mixed Integer Nonlinear Programming Framework for Fixed Path ...
paths of the robots are represented by piecewise cubic spline curves. ...... programming, linear and nonlinear systems theory, statistics, and machine learning.
Determining Cloud Ice Water Path from High-Frequency Microwave...
Determining Cloud Ice Water Path from High-Frequency Microwave Measurements G. Liu Department of Meteorology Florida State University Tallahassee, Florida Introduction A better...
EIA updates mapping tool relating hurricane path to energy ...
capacity; nuclear; exports ... The Energy Information Administration has updated an interactive mapping tool on its website so that users see the projected path of ...
ORNL-grown oxygen 'sponge' presents path to better catalysts...
presents path to better catalysts, energy materials This schematic depicts a new ORNL-developed material that can easily absorb or shed oxygen atoms. This schematic depicts...
Scalable clustering of Internet paths by shared congestion
Abstract � Internet paths sharing the same bottleneck can be identified using several shared congestion detection techniques. However, all of these techniques have been designed to detect shared congestion between a pair of paths. To cluster N paths by shared congestion, a straightforward approach of using pairwise tests would require O(N 2) time complexity. In this paper, we present a scalable approach to cluster Internet paths based on DCW (Delay Correlation with Wavelet denoising) which does not require a common end point between paths. We present a function to map each path�s measurement data into a point in a multidimensional space such that points are close to each other if and only if the corresponding paths share congestion. Because points in the space are indexed using a tree-like structure, the computational complexity of clustering N paths can be reduced to O(N log N). The indexing overhead can be further improved by reducing dimensionality of the space through wavelet transform. Computation cost is kept low by reusing for dimensionality reduction the same wavelet coefficients obtained in DCW. Our approach is evaluated by simulations and found to be effective for a large N. The tradeoff between dimensionality and clustering accuracy is shown empirically. I.
Min Sik Kim; Taekhyun Kim; Yong-june Shin; Simon S. Lam; Edward J. Powers
Efficient Tool Paths and Part Orientation for Face Milling
Avoiding Tool Exit in Planar Milling by Adjusting Width oftime. The most common face milling tool paths employed areand Part Orientation for Face Milling A. Rangarajan 1 , D.
Rangarajan, Arvind; Dornfeld, David
Modulated Tool-Path (MTP) Chip Breaking System
Relationship between chip length, oscillation rate, and R Af . Modulated Tool-Path (MTP) Chip Breaking System 16 Fig. 11. MTP chip breaking surface fi nish model.
DOE EM Landfill Workshop and Path Forward - July 2009
Teleconference: 2. DOE EM Landfill Workshop & Path Forward Office of Groundwater and Soil Remediation US Department of Energy July 2009 Slides prepared by CRESP DOE EM Landfill...
Community-Based Forest (Natural) Resource Management: A Path...
Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development Jump to: navigation, search Name Community-Based Forest (Natural) Resource Management:...
Joint Spectral Radius and Path-Complete Graph Lyapunov Functions
Nov 22, 2011 ... Abstract: We introduce the framework of path-complete graph Lyapunov functions for approximation of the joint spectral radius. The approach is�...
A Development Path for the Stabilized Spheromak
In Refs. [1] - [3], I suggest a concerted computational effort to study profile control of spheromaks, in anticipation that it is timely to incorporate the q < 1 regime of RFP's and spheromaks into an integrated advanced toroidal confinement program, together with improvements in tokamaks and stellarators now being pursued. For profile control of spheromaks by neutral beam injection, with care to avoid super-Alfvenic beam instability the main issue is excitation of tearing modes that can be studied using the NIMROD code already calibrated to MST and SSPX. In this note, I show that profile control on spheromaks could be demonstrated in a device the size of SSPX, leading ultimately to a very compact ignition facility, and possibly modular fusion reactors with a shorter development path.
Fowler, T K
Hanford spent nuclear fuel project recommended path forward, volume III: Alternatives and path forward evaluation supporting documentation
Volume I of the Hanford Spent Nuclear Fuel Project - Recommended Path Forward constitutes an aggressive series of projects to construct and operate systems and facilities to safely retrieve, package, transport, process, and store K Basins fuel and sludge. Volume II provided a comparative evaluation of four Alternatives for the Path Forward and an evaluation for the Recommended Path Forward. Although Volume II contained extensive appendices, six supporting documents have been compiled in Volume III to provide additional background for Volume II.
Fulton, J.C.
Final Report - Dynamic Path Scheduling through Extensions to Generalized Multiprotocol Label Switching (GMPLS)
The major accomplishments of the project are the successful software implementation of the Phase I scheduling algorithms for GMPLS Label Switched Paths (LSPs) and the extension of the IETF Path Computation Element (PCE) Protocol to support scheduling extensions. In performing this work, we have demonstrated the theoretical work of Phase I, analyzed key issues, and made relevant extensions. Regarding the software implementation, we developed a proof of concept prototype as part of our Algorithm Evaluation System (AES). This implementation uses the Linux operating system to provide software portability and will be the foundation for our commercial software. To demonstrate proof of concept, we have implemented LSP scheduling algorithms to support two of the key GMPLS switching technologies (Lambda and Packet) and support both Fixed Path (FP) and Switched Path (SP) routing. We chose Lambda and Packet because we felt it was essential to include both circuit and packet switching technologies as well as to address all-optical switching in the study. As conceptualized in Phase I, the FP algorithms use a traditional approach where the LSP uses the same physical path for the entire service duration while the innovative SP algorithms allow the physical path to vary during the service duration. As part of this study, we have used the AES to conduct a performance analysis using metro size networks (up to 32 nodes) that showed that these algorithms are suitable for commercial implementation. Our results showed that the CPU time required to compute an LSP schedule was small compared to expected inter-arrival time between LSP requests. Also, when the network size increased from 7 to 15 to 32 nodes with 10, 26, and 56 TE links, the CPU processing time showed excellent scaling properties. When Fixed Path and Switched Path routing were compared, SP provided only modestly better performance with respect to LSP completion rate, service duration, path length, and start time deviation. In addition, the SP routing required somewhat more CPU time than the FP routing. However, when the allowable range for the start time is increased, the CPU time for SP increased less rapidly than FP such that the CPU processing times became comparable. Therefore, SP routing may scale better than FP routing. The Path Computation Element Working Group is a complementary working group to the GMPLS working group (CCAMP) in the IETF and is developing standards to discover, manage, and access elements that compute routes for GMPLS for LSPs. The algorithms used to compute the routes are not subject to standardization. Since the PCE supports only standard GMPLS LSPs, it does not support scheduled LSPs. Therefore, it is a natural extension of our Phase I work to introduce this enhancement into the PCE. In addition, the PCE adds another dimension to our product line because the PCE by itself may be a product with a standard interface.
Principal Investigator: Dr. Abdella Battou
Vickrey Prices and Shortest Paths: What is an Edge Worth?
We solve a shortest path problem that is motivated by recent interest in pricing networks or other computational resources. Informally, how much is an edge in a network worth to a user who wants to send data between two nodes along a shortest path? If ...
J. Hershberger; S. Suri
Realization strategies of dedicated path protection: A bandwidth cost perspective
Communication networks have to provide a high level of availability and instantaneous recovery after failures in order to ensure sufficient survivability for mission-critical services. Currently, dedicated path protection (or 1+1) is implemented in backbone ... Keywords: Cost analysis, Dedicated protection, Network coding, Path protection, Reliability, SRLG
P�Ter Babarczi, Gergely Bicz�K, Harald �Verby, J�Nos Tapolcai, P�Ter Soproni
Exact graph search algorithms for generalized traveling salesman path problems
The Generalized Traveling Salesman Path Problem (GTSPP) involves finding the shortest path from a location s to a location t that passes through at least one location from each of a set of generalized location categories (e.g., gas stations, ...
Michael N. Rice; Vassilis J. Tsotras
A constrained binary knapsack approximation for shortest path network interdiction
A modified shortest path network interdiction model is approximated in this work by a constrained binary knapsack which uses aggregated arc maximum flow as the objective function coefficient. In the modified shortest path network interdiction problem, ... Keywords: Approximation techniques, Homeland security, Integer programming, Network interdiction
Justin Yates; Kavitha Lakshmanan
Overhead reduction in a distributed path management system
CEAS (cross entropy ant system) is a distributed, robust and adaptive swarm intelligence system for path management in communication networks. This paper focuses on strategies for handling the overhead in terms of processing cycles, memory storage, and ... Keywords: Cross entropy, Path management, Swarm intelligence
Poul E. Heegaard; Otto J. Wittner
MultiPath TCP: from theory to practice
The IETF is developing a new transport layer solution, MultiPath TCP (MPTCP), which allows to efficiently exploit several Internet paths between a pair of hosts, while presenting a single TCP connection to the application layer. From an implementation ... Keywords: TCP, implementation, measurements, multipath
S�bastien Barr�; Christoph Paasch; Olivier Bonaventure
A path space extension for robust light transport simulation
We present a new sampling space for light transport paths that makes it possible to describe Monte Carlo path integration and photon density estimation in the same framework. A key contribution of our paper is the introduction of vertex perturbations, ... Keywords: global illumination, multiple importance sampling
Toshiya Hachisuka; Jacopo Pantaleoni; Henrik Wann Jensen
Solar Decathlon 2013 Infographic: The Path to a Brighter Future |
Solar Decathlon 2013 Infographic: The Path to a Brighter Future Solar Decathlon 2013 Infographic: The Path to a Brighter Future Solar Decathlon 2013 Infographic: The Path to a Brighter Future September 13, 2013 - 11:50am Addthis Our latest infographic -- Solar Decathlon 2013: The Path to a Brighter Future -- takes a look at the teams competing in this yearâs competition and highlights innovative design features in each of the teamsâ houses. Not featured in the "Meet the Teams" section, Team Texas will also compete at Solar Decathlon 2013 with their ADAPT house. | Infographic by Sarah Gerrity, Energy Department. Our latest infographic -- Solar Decathlon 2013: The Path to a Brighter Future -- takes a look at the teams competing in this year's competition
Infographic: The Path to a Brighter Future Infographic: The Path to a Brighter Future Solar Decathlon 2013 Infographic: The Path to a Brighter Future September 13, 2013 - 11:50am Addthis Our latest infographic -- Solar Decathlon 2013: The Path to a Brighter Future -- takes a look at the teams competing in this yearâs competition and highlights innovative design features in each of the teamsâ houses. Not featured in the "Meet the Teams" section, Team Texas will also compete at Solar Decathlon 2013 with their ADAPT house. | Infographic by Sarah Gerrity, Energy Department. Our latest infographic -- Solar Decathlon 2013: The Path to a Brighter Future -- takes a look at the teams competing in this year's competition and highlights innovative design features in each of the teams' houses.
Microsoft Word - Highlights.doc
6 6 1 May 2006 Short-Term Energy Outlook May 9, 2006 Release Overview Crude oil prices surged in April and have now almost doubled over the last 2 years. While rising crude oil prices have slowed world petroleum demand growth, world consumption nevertheless rose by 3.8 million barrels per day (bbl/d) over this period. In 2004 production in both Organization of Petroleum Exporting Countries (OPEC) and non-OPEC countries increased to meet growing demand. In 2005 all of the increase in world production came from OPEC members, as Hurricanes Rita and Katrina pummeled U.S. production, which offset the production growth in other non-OPEC countries. World surplus crude oil production capacity, located
Total Crude Oil and Products Imports from All Countries
Country: All Countries Persian Gulf OPEC Algeria Angola Ecuador Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Albania Argentina Aruba Australia Austria Azerbaijan Bahamas Bahrain Barbados Belarus Belgium Belize Benin Bolivia Brazil Brunei Bulgaria Burma Cameroon Canada Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Cook Islands Costa Rica Croatia Cyprus Czech Republic Denmark Dominican Republic Egypt El Salvador Equatorial Guinea Estonia Finland France Gabon Georgia, Republic of Germany Ghana Gibralter Greece Guatemala Guinea Hong Kong Hungary India Indonesia Ireland Israel Italy Ivory Coast Jamaica Japan Kazakhstan Korea, South Kyrgyzstan Latvia Liberia Lithuania Malaysia Malta Mauritania Mexico Midway Islands Morocco Namibia Netherlands Netherlands Antilles New Zealand Nicaragua Niue Norway Oman Pakistan Panama Papua New Guinea Peru Philippines Poland Portugal Puerto Rico Romania Russia Senegal Singapore Slovakia South Africa Spain Spratly Islands Swaziland Sweden Switzerland Syria Taiwan Thailand Togo Trinidad and Tobago Tunisia Turkey Turkmenistan Ukraine United Kingdom Uruguay Uzbekistan Vietnam Virgin Islands (U.S.) Yemen
The National Ignition Facility (NIF) A Path to Fusion Energy
Fusion energy has long been considered a promising clean, nearly inexhaustible source of energy. Power production by fusion micro-explosions of inertial confinement fusion (ICF) targets has been a long term research goal since the invention of the first laser in 1960. The NIF is poised to take the next important step in the journey by beginning experiments researching ICF ignition. Ignition on NIF will be the culmination of over thirty years of ICF research on high-powered laser systems such as the Nova laser at LLNL and the OMEGA laser at the University of Rochester as well as smaller systems around the world. NIF is a 192 beam Nd-glass laser facility at LLNL that is more than 90% complete. The first cluster of 48 beams is operational in the laser bay, the second cluster is now being commissioned, and the beam path to the target chamber is being installed. The Project will be completed in 2009 and ignition experiments will start in 2010. When completed NIF will produce up to 1.8 MJ of 0.35 {micro}m light in highly shaped pulses required for ignition. It will have beam stability and control to higher precision than any other laser fusion facility. Experiments using one of the beams of NIF have demonstrated that NIF can meet its beam performance goals. The National Ignition Campaign (NIC) has been established to manage the ignition effort on NIF. NIC has all of the research and development required to execute the ignition plan and to develop NIF into a fully operational facility. NIF will explore the ignition space, including direct drive, 2{omega} ignition, and fast ignition, to optimize target efficiency for developing fusion as an energy source. In addition to efficient target performance, fusion energy requires significant advances in high repetition rate lasers and fusion reactor technology. The Mercury laser at LLNL is a high repetition rate Nd-glass laser for fusion energy driver development. Mercury uses state-o-the art technology such as ceramic laser slabs and light diode pumping for improved efficiency and thermal management. Progress in NIF, NIC, Mercury, and the path forward for fusion energy will be presented.
Moses, E
OPEC needs help from other exporters to balance market
For the past 5 years the Organization of Petroleum Exporting Countries has been telling oil producers around the world that it can no longer carry the burden of trying to balance supply and demand without outside help. Non-OPEC exporters have, on several occasions, examined the benefits of sharing the burden of production cuts, but rightly have been nervous of close cooperation with an unpredictable and undisciplined competitor. Cooperation will certainly depend on OPEC reaching its own production cutting agreement. That must be done in a way that given non-OPEC countries confidence that any new production and pricing pact will not fall apart during the first half of next year. OPEC exports to the developing world have been trimmed by the advent of new producers. In most of these countries local production only eliminates or reduces imports. Few are in the class of North Yemen where the initial flow could meet local demand and provide a surplus for export.
Vielvoye, R.
EIA - Assumptions to the Annual Energy Outlook 2010 - International Energy
International Energy Module International Energy Module Assumptions to the Annual Energy Outlook 2010 International Energy Module Figure 2. World Oil Prices in Three Cases, 1995-2035 Figure 2. World Oil Prices in three Cases, 1995-2035 (2008 dollars per barrel). Need help, contact the National Energy Information Center at 202-586-8800. figure data Figure 3. OPEC Total Liquids Production in the Reference Case, 1980-2035 Figure 3. OPEC Total Liquids Production in the Reference Case, 1995-2030 (million barrels per day). Need help, contact the National Energy Information Center at 202-586-8800. figure data Figure 4. Non-OPEC Total Liquids Production in the Reference Case, 1980-2035 Figure 4. Non-OPEC Total Liquids Production in the Reference Case, 1995-2030 (million barrels per day). Need help, contact the National Energy Information Center at 202-586-8800.
Path forward for dosimetry cross sections
In the 1980's the dosimetry community embraced the need for a high fidelity quantification of uncertainty in nuclear data used for dosimetry applications. This led to the adoption of energy-dependent covariance matrices as the accepted manner of quantifying the uncertainty data. The trend for the dosimetry community to require high fidelity treatment of uncertainty estimates has continued to the current time where requirements on nuclear data are codified in standards such as ASTM E 1018. This paper surveys the current state of the dosimetry cross sections and investigates the quality of the current dosimetry cross section evaluations by examining calculated-to-experimental ratios in neutron benchmark fields. In recent years more nuclear-related technical areas are placing an emphasis on uncertainty quantification. With the availability of model-based cross sections and covariance matrices produced by nuclear data codes, some nuclear-related communities are considering the role these covariance matrices should play. While funding within the dosimetry community for cross section evaluations has been very meager, other areas, such as the solar-related astrophysics community and the US Nuclear Criticality Safety Program, have been supporting research in the area of neutron cross sections. The Cross Section Evaluation Working Group (CSEWG) is responsible for the creation and maintenance of the ENDF/B library which has been the mainstay for the reactor dosimetry community. Given the new trends in cross section evaluations, this paper explores the path forward for the US nuclear reactor dosimetry community and its use of the ENDF/B cross-sections. The major concern is maintenance of the sufficiency and accuracy of the uncertainty estimate when used for dosimetry applications. The two major areas of deficiency in the proposed ENDF/B approach are: 1) the use of unrelated covariance matrices in ENDF/B evaluations and 2) the lack of 'due consideration' of experimental data in the evaluation. (authors)
Griffin, P.J. [Sandia National Laboratories, Albuquerque, NM 87185-1146 (United States); Peters, C.D. [Sandia Staffing Alliance, Albuquerque, NM 87110 (United States)
Spin in the worldline path integral in 2 + 1 dimensions
We present a constructive derivation of a worldline path integral for the effective action and the propagator of a Dirac field in 2 + 1 dimensions, in terms of spacetime and SU(2) paths. After studying some general properties of this representation, we show that the auxiliary gauge-group variable can be integrated, deriving a worldline action depending only on x({tau}), the spacetime paths. We then show that the functional integral automatically imposes the constraint x{sup .2}({tau})=1, while there is a spin action, which agrees with the one one should expect for a spin-1/2 field.
Fosco, C.D. [Centro Atomico Bariloche and Instituto Balseiro, Comision Nacional de Energia Atomica, 8400 Bariloche (Argentina); Sanchez-Guillen, J. [Departamento de Fisica de Particulas, Facultad de Fisica and Instituto Galego de Fisica de Altas Energias, Universidad de Santiago, E-15782 Santiago de Compostela (Spain); Vazquez, R.A. [Departamento de Fisica de Particulas, Facultad de Fisica and Instituto Galego de Fisica de Altas Energias, Universidad de Santiago, E-15782 Santiago de Compostela (Spain)], E-mail: firstname.lastname@example.com
Strong demand growth seen for oil and gas in 1997--99
This paper provides historical information on worldwide crude oil productions from 1984 to present and makes predictions on future demand and refinery capacities. It provides information on oil reserves on a world scale and the pricing of these commodities. It breaks reserves, production and capacities down into OPEC and non-OPEC countries. It then provides general energy demand for both developed and developing countries in all energy forms.
A global perspective on energy markets and economic integration.
What will be the effect of Iraqi domestic instability on Iraqi oil production Negotiations for Iranian nuclear technology on Iranian oil supplies Saudi commitment to expanded oil production President Putin's policies on Russian oil and natural gas supplies President Chavez's policies on Venezuelan oil supplies Instability in Nigeria Higher oil prices on world economic growth Effect of economic growth on oil demand in China, India, U.S., etc. Higher oil prices on non-OPEC oil supplies
Baker, Arnold Barry
The paths and characteristics of real estate entrepreneurs
What paths have real estate entrepreneurs taken to establish their own firm? Also, what characteristics did they develop and utilize in the process? This thesis gives the unique opportunity to better understand the life ...
Kazmierski, Michael (Michael Anthony)
Optimally controlling hybrid electric vehicles using path forecasting
Hybrid Electric Vehicles (HEVs) with path-forecasting belong to the class of fuel efficient vehicles, which use external sensory information and powertrains with multiple operating modes in order to increase fuel economy. ...
Katsargyri, Georgia-Evangelina
Path dependent receding horizon control policies for hybrid electric vehicles
Future hybrid electric vehicles (HEVs) may use path-dependent operating policies to improve fuel economy. In our previous work, we developed a dynamic programming (DP) algorithm for prescribing the battery state of charge ...
Kolmanovsky, Ilya V.
Optimally Controlling Hybrid Electric Vehicles using Path Forecasting
The paper examines path-dependent control of Hybrid Electric Vehicles (HEVs). In this approach we seek to improve HEV fuel economy by optimizing charging and discharging of the vehicle battery depending on the forecasted ...
Measurements of Rainfall Properties Using Long Optical Path Imaging
Measurements of long-path optical attenuation of visible light due to rainfall are described, from which rainfall parameters are derived. Novel aspects of the method are the use of a distant uncontrolled and broadband spotlight source, and ...
S. G. Bradley; C. D. Stow; C. A. Lynch-Blosse
Path predicate abstraction by complete interval property checking
This paper describes a method to create an abstract model from a set of properties fulfilling a certain completeness criterion. The proposed abstraction can be understood as a path predicate abstraction. As in predicate abstraction, certain concrete ...
Joakim Urdahl; Dominik Stoffel; J�rg Bormann; Markus Wedler; Wolfgang Kunz
Building Energy Software Tools Directory: SunPath
SunPath Calculates the position of the center of the sun in the sky at locations, dates, and times specified by the user. Numerous calculation options are available. Includes a...
The Path of Carbon in Photosynthesis VII Respiration and Photosynthesis
seconds, me-minutes, PS. -photosynthesis mith C 14 02, C. -treatments subsequent t o photosynthesis were done i n C02-THE PATH OF CARBON I N PHOTOSYNTHESIS, AND PHOTOSYNTHESIS*
Diverging Paths for IT Industries in Taiwan and Korea
E B A article, Twn/Korea 11-9-94 Diverging PathsIT Industries in Taiwan and Korea Jason Dedrick and Kennethtechnology (IT) industry in Korea and Taiwan. Riding the
Dedrick, Jason; Kraemer, Kenneth L.
Path planning of Autonomous Underwater Vehicles for adaptive sampling
This thesis develops new methods for path planning of Autonomous Underwater Vehicles for adaptive sampling. The problem is approached in an optimization framework and two methods are developed to solve it based on Mixed ...
Yilmaz, Namik Kemal, 1975-
may not be a household term just yet, it represents one promising path forward for using fossil fuels as part of a clean energy future. At most coal fired power plants, the coal...
elite set P does not have at least ? elements, then if ?? is feasible and sufficiently different ...... Fundamentals of scatter search and path relinking. ... In F. Glover and G. Kochenberger, editors, Handbook of Metaheuristics, pages. 219� 249.
DOE Joint Genome Institute: Spikemoss Genome Offers New Paths...
5, 2011 Spikemoss Genome Offers New Paths for Biofuels Research--Bridges Plant Development Gap WALNUT CREEK, Calif.- It's not quite Christmas, but the DNA sequence of a small plant...
under varying temperature conditions. Keywords: Electricity, demand, imports, transmission flows Marshall, Marc Pryor, David Vidaver Electricity Analysis Office Electricity Supply Assessment Division a 2008 staff assessment of electricity flows over Path 26 during heat spells in the summers of 2006
A Surprising Path for Proton Transfer Without Hydrogen Bonds
A Surprising Path for Proton Transfer Without Hydrogen Bonds Print Hydrogen bonds are found everywhere in chemistry and biology and are critical in DNA and RNA. A hydrogen bond...
Lidar-Transmissometer Visibility Comparisons Over Slant and Horizontal Paths
Atmospheric visibility has been measured with the lidar technique using the �slope method.� The system is briefly described and some aspects of slant path visibility measurements for aeronautical applications are discussed. Measurements in dense ...
J. L. Gaumet; A. Petitpa
Thermal Conductivity Spectroscopy Technique to Measure Phonon Mean Free Paths
Size effects in heat conduction, which occur when phonon mean free paths (MFPs) are comparable to characteristic lengths, are being extensively explored in many nanoscale systems for energy applications. Knowledge of MFPs ...
Schmidt, A. J.
Combining Path Integration and Remembered Landmarks When Navigating without Vision
This study investigated the interaction between remembered landmark and path integration strategies for estimating current location when walking in an environment without vision. We asked whether observers navigating without ...
Schrater, Paul R.
Loop Current Eddy Paths in the Western Gulf of Mexico
The paths of anticyclonic Loop Current eddies in the western Gulf of Mexico have been investigated using ARGOS-tracked drifters accompanied by hydrographic surveys. The analysis used orbit parameters derived from a least square fit of a ...
Peter Hamilton; G. S. Fargion; D. C. Biggs
A Path Forward for the Gulf Coast | Department of Energy
A Path Forward for the Gulf Coast A Path Forward for the Gulf Coast A Path Forward for the Gulf Coast September 30, 2010 - 11:45am Addthis A Path Forward for the Gulf Coast Bill Valdez Bill Valdez Principal Deputy Director The Gulf Coast is a gate for commerce, producer of seafood, oil and natural gas, host to diverse ecosystems, home to millions and it's future is intertwined with the future of this Nation. Our country has made a promise to the people and small businesses of the Gulf Coast to restore their environment, economy and health, and continue a conversation with the fisherman, environmental workers, elected officials, health officials, scientists and Gulf residents on how to restore the Gulf. Those conversations and our promise to the Gulf are laid out in U.S. Navy Secretary Ray Mabus' report, which was released on Tuesday and presented
A Shared Path Toward a Sustainable Energy Future
Shared Path Toward a Sustainable Energy Future Shared Path Toward a Sustainable Energy Future The DOE Office of Indian Energy's approach is, first and foremost, a collaborative one. Led by Director Tracey A. LeBeau (Cheyenne River Sioux), the office works with tribal nations, federal agencies, state governments, nongovernmental organizations, and the private sector to develop the considerable energy resources that exist on Indian lands. To guide the strategic planning and implementation of the department's tribal
Initial Studies Toward Real-Time Transmission Path Rating
Demand continues to increase while transmission line construction is being constrained by multiple factors� economic, environmental, and political. Effective and efficient utilization of transmission lines is thus of great importance in an open access environment. Large blocks of power are transferred from areas with inexpensive generation to heavy load demand areas or areas with high generation costs. This results in some transmission paths being loaded closer to their path ratings, which limits further power transfer between areas. Traditionally, rating of important paths was determined off line by assuming the worst-case study scenario; once determined, it could be used for years. With increasing uncertainty arising from rapid growth of renewable energy and smart technologies, path rating studies are needed in near-real time to account for the latest system status and support a reliable and economic power grid. This paper adopts a simplified procedure based on standards of the North American Electric Reliability Corporation (NERC) to determine total transfer capability (TTC) or transfer limit for the purpose of demonstrating the benefits and necessity of real-time path rating. Initial studies are conducted to compute TTC of a two-area test system and a 39-bus test system. Results indicate that path rating can be significantly affected by loading conditions, generator schedules, system topology and other factors.
Singh, Ruchi; Diao, Ruisheng; Cai, Niannian; Huang, Zhenyu; Tuck, Brian; Guo, Xinxin
The Path of Carbon in Photosynthesis
The dark fixation of carbon dioxide by green algae has been investigated and found to be closely related to photosynthesis fixation. By illumination in the absence of carbon dioxide followed by treatment with radioactive carbon dioxide in the dark, the amount fixed has been increased ten to twenty fold. This rate of maximum fixation approaches photosynthesis maximum rates. The majority of the radioactive products formed under these conditions have been identified and isolated and the distribution of labeled carbon determined. From these results a tentative scheme for the mechanism of photosynthesis is set forth.
Calvin, M.; Benson, A. A.
NGNP Project 2011 Status and Path Forward
High Temperature Gas Reactor (HTGR) technology can play an important role in the United States� energy future by extending the use of nuclear energy for non-electricity energy production missions as well as continuing to provide a considerable base load electric power generation capability. Extending nuclear energy into the industrial and transportation sectors through the co-production of process heat and electricity provides safe and reliable energy for these sectors in an environmentally responsible manner. The safety case for the modular HTGR provides a substantial improvement in nuclear plant safety for the protection of the public and the environment, and supports collocation of the HTGR with major industrial facilities. The NGNP Project at the Idaho National Laboratory has been working toward an objective of commercializing the HTGR technology under DOE direction since 2006. The Project is undergoing a quantum shift in direction and scope as a result of recent DOE decisions. This paper summarizes where the Project has been, where it is at the time of this writing and what is needed in future activities to commercialize HTGR technology.
L.E. Demick
Don't count OPEC out
Prediction of OPEC's demise may be premature since the US and the industrial world continue their reliance on Middle East oil. US dependence on imported oil could increase with economic recovery and present OPEC with new opportunities to manipulate prices enough to discourage non-OPEC production and conservation. Analysts predict that a new and stronger OPEC may emerge unless the people are unwilling to delay their own development just to keep the West hooked on cheap oil. 1 figure, 1 table. (DCK)
Eason, H.
RPS: range-based path selection method for concurrent multipath transfer
Throughput of Concurrent Multipath Transfer varies with different path selection schemes. As the number of path increases, the path selection solution space increases exponentially while receiving buffer efficiency decreases. To solve this problem, we ... Keywords: CMT, multipath, path selection, range-based, receive buffer, transport layer
Wang Yang; Hewu Li; Fenghua Li; Qian Wu; Jianping Wu
Fast false path identification based on functional unsensitizability using RTL information
In this paper, we propose a method for identifying false paths based on functional unsensitizability of path delay faults. By using RTL structural information, a number of gate level paths are bound into an RTL path and the bundle of them can be identified ...
Yuki Yoshikawa; Satoshi Ohtake; Tomoo Inoue; Hideo Fujiwara
The two-equal-disjoint path cover problem of Matching Composition Network
Embedding of paths have attracted much attention in the parallel processing. Many-to-many communication is one of the most central issues in various interconnection networks. A graph G is globally two-equal-disjoint path coverable if for any two distinct ... Keywords: Hamiltonian-connectivity, Interconnection networks, Matching Composition Networks, Two-equal-disjoint path cover, k disjoint path cover
Pao-Lien Lai; Hong-Chun Hsu
Solar technologies and the soft path: an empirical examination
A US national probability sample of 2023 traditional energy users and a purposive sample of 3809 solar energy technology owners are compared to assess whether those who owned solar energy technologies in 1980 have more soft path preferences (SPP) (e.g., attitudes and behaviors compatible with soft energy path developments) than do those who did not own such technologies. It is suggested that SPP is a necessary but not sufficient condition for the social structural transformation of society to the soft energy path proposed by Amory Lovins. A soft-path preferences scale is developed. The scale values for solar and nonsolar homeowners, for active and passive solar technology owners, and for those owing the technologies for four different time periods are compared. The nonsolar homeowners, passive technology owners, and those who owned the technologies from one to five years have the highest SPP scores. The greatest differences were found in the dimension of natural resources conservation. Partial least squares structural equation modeling is used to examine an extension and specification of Lovins' theory of soft-energy-path development. A model is created which focuses on the process of SPP development. Energy vulnerability needs, contextual resources, type of solar technologies, technological problems, and evaluation are the independent variables of the model.
Lodwick, D.G.
OPEC behavior: a test of alternative hypotheses
Since interpretations of past and future oil price patterns depends on the model chosen, the author tests and compares alternative theories of OPEC as a first step in validating the choice on any one model. The results show that among OPEC countries, the partial market-sharing cartel model is the only model not rejected by at least some of the 11 members and gives the best explanation of production. In comparison with 11 non-OPEC countries, the competitive model could not be rejected for 10 of the 11 non-OPEC producers. This raises the question of why, if OPEC is a cartel, Friedman's predictions have not come true, and introduces new questions for future research. 19 references, 3 tables.
Griffin, J.M.
The Path a Proton Takes Through a Fuel Cell Membrane
Path a Proton Path a Proton Takes Through a Fuel Cell Membrane The Path a Proton Takes Through a Fuel Cell Membrane October 11, 2012 | Tags: Basic Energy Sciences (BES), Chemistry, Franklin, Hopper Linda Vu, firstname.lastname@example.com, +1 510 495 2402 Ram.jpg The cover represents the environment around the side chain. The right side is the water network that exists between the sulfonate groups shown in yellow. The left side is the short chain with the sulfonate group. Many experts believe that fuel cells may someday serve as revolutionary clean energy conversion devices for transportation and other portable power applications. Because they generate electricity by converting chemical hydrogen and oxygen into water, fuel cells generate energy much more efficiently than combustion devices, and with near-zero pollutant
New Reports Chart Offshore Wind's Path Forward | Department of Energy
Reports Chart Offshore Wind's Path Forward Reports Chart Offshore Wind's Path Forward New Reports Chart Offshore Wind's Path Forward December 12, 2012 - 2:29pm Addthis Taking a look at the challenges and opportunities that lie ahead as the U.S. prepares to enter the offshore wind market. Click here to view the full infographic. | Infographic by Sarah Gerrity. Taking a look at the challenges and opportunities that lie ahead as the U.S. prepares to enter the offshore wind market. Click here to view the full infographic. | Infographic by Sarah Gerrity. Taking a look at the challenges and opportunities that lie ahead as the U.S. prepares to enter the offshore wind market. Click here to view the full infographic. | Infographic by Sarah Gerrity.
LANL researchers improve path to producing uranium compounds, candidates
Researchers improve path to producing uranium compounds Researchers improve path to producing uranium compounds LANL researchers improve path to producing uranium compounds, candidates for advanced nuclear fuels Enhance the ability to develop advanced nuclear fuels in a safer, simpler manner. April 7, 2011 This illustration shows the structures of UI4(1,4-dioxane)2 (left) and the UI3(1,4-dioxane)1.5 complexes. This illustration shows the structures of UI4(1,4-dioxane)2 (left) and the UI3(1,4-dioxane)1.5 complexes. Contact Kevin Roark Communicatons Office (505) 665-9202 Email LOS ALAMOS, New Mexico, April 7, 2010- Advances made by researchers at Los Alamos National Laboratory could enhance the ability of scientists to develop advanced nuclear fuels in a safer, simpler manner. Uranium chemistry research relies heavily on a variety of uranium "starting
A Heat Capacity Estimator for Fourier Path Integral Simulations
Previous heat capacity estimators useful in path integral simulations have variances that grow with the number of path variables included. In the present work a new specific heat estimator for Fourier path integral Monte Carlo simulations is derived using methods similar to those used in developing virial energy estimators. The resulting heat capacity estimator has a variance that is roughly independent of the number of Fourier coe#cients (k max ) included, and the asymptotic convergence rate is shown to be proportional to 1/k 2 max when partial averaging is included. Quantum Monte Carlo simulations are presented to test the estimator using two one-dimensional models and for Lennard-Jones representations of Ne 13 . For finite kmax , using numerical methods, the calculated heat capacity is found to diverge at low temperatures for the potential functions studied in this work. Extrapolation methods enable useful results to be determined over a wide temperature range. Typeset using REVT...
J. P. Neirotti; David L. Freeman; J. D. Doll
Effective Graph Clustering for Path Queries in Digital Map Databases
In this paper, we present an experimental evaluation of graph clustering strategies in terms of their effectiveness in optimizing I/O for path query processing in digital map databases. Clustering optimization is attractive because it does not incurs any run-time cost, and is complimentary to many of the existing techniques in path query optimization. We first propose a novel graph clustering technique, called Spatial Partition Clustering (SPC), that creates balanced partitions of links based on the spatial proximity of their origin nodes. We then select three alternative clustering techniques from the literature, namely two-way partitioning, approximately topological clustering, and random clustering, to compare their performance in path query processing with SPC. Experimental evaluation indicates that our SPC performs the best for the high-locality graphs (such as GIS maps), whereas the two-way partitioning approach performs the best for no-locality random graphs. 1 Introduction 1....
Yun-Wu Huang; Ning Jing; Elke A. Rundensteiner
What's Next for Nuclear Energy? MIT Students Discuss Path Forward |
Next for Nuclear Energy? MIT Students Discuss Path Forward Next for Nuclear Energy? MIT Students Discuss Path Forward What's Next for Nuclear Energy? MIT Students Discuss Path Forward June 19, 2012 - 10:41am Addthis Dr. Peter Lyons, Assistant Secretary for Nuclear Energy met with students at MIT during an informal roundtable to talk what's next for nuclear energy and for the nuclear power industry. | Photo courtesy of Jake Dewitt. Dr. Peter Lyons, Assistant Secretary for Nuclear Energy met with students at MIT during an informal roundtable to talk what's next for nuclear energy and for the nuclear power industry. | Photo courtesy of Jake Dewitt. What does this project do? The Nuclear Energy University Program, has provided MIT and 78 other schools with $220 million in research grants and related support. Investing in the next generation isn't just about technology -- it's
DOE Continues Path Forward on Global Nuclear Energy Partnership |
Continues Path Forward on Global Nuclear Energy Partnership Continues Path Forward on Global Nuclear Energy Partnership DOE Continues Path Forward on Global Nuclear Energy Partnership August 3, 2006 - 8:39am Addthis Department Announces $20 Million for GNEP Siting Studies and Seeks Further Coordination with Industry WASHINGTON, DC - The U.S. Department of Energy (DOE) today announced $20 million to conduct detailed siting studies for public or commercial entities interested in hosting DOE's Global Nuclear Energy Partnership (GNEP) facilities. Entities could qualify to receive up to $5 million per site. DOE also announced that it is seeking expressions of interest to obtain input from U.S. and international nuclear industry on the feasibility of accelerating development and deployment of advanced recycling technologies by proceeding with commercial scale demonstration
Technology Analysis - Multi-Path Transportation Futures Study
Multi-Path Transportation Futures Study: Vehicle Characterization and Scenario Analyses Multi-Path Transportation Futures Study: Vehicle Characterization and Scenario Analyses The Multi-Path Study began by defining the basic physical characteristics of future advanced midsize cars and midsize SUVs with drivetrain technologies ranging from advanced SI and CI (diesel) engine-based conventional drivetrains through hybrid drivetrains (including plug-ins), to fuel cell hybrids and plug-in hybrids, through pure-electric drivetrains. The study evaluates these vehicles fuel economy using Argonnes PSAT simulation model, estimates their costs, and does detailed analyses of their cost-effectiveness, balancing first costs against fuel savings. The study uses a version of the National Energy Modeling System (developed by the Energy Information Administration in the U.S. Department of Energy) to evaluate several scenarios assuming different vehicle costs (one set based on a literature review, one based on DOE goals) and availability of purchase subsidies.
What's Next for Nuclear Energy? MIT Students Discuss Path Forward What's Next for Nuclear Energy? MIT Students Discuss Path Forward What's Next for Nuclear Energy? MIT Students Discuss Path Forward June 19, 2012 - 10:41am Addthis Dr. Peter Lyons, Assistant Secretary for Nuclear Energy met with students at MIT during an informal roundtable to talk what's next for nuclear energy and for the nuclear power industry. | Photo courtesy of Jake Dewitt. Dr. Peter Lyons, Assistant Secretary for Nuclear Energy met with students at MIT during an informal roundtable to talk what's next for nuclear energy and for the nuclear power industry. | Photo courtesy of Jake Dewitt. What does this project do? The Nuclear Energy University Program, has provided MIT and 78 other schools with $220 million in research grants and related support.
FESAC White Paper Path to Market for Compact Systems July 2012 The Path to Market for Compact Modular Fusion Power Cores1
FESAC White Paper Path to Market for Compact Systems July 2012 The Path to Market for Compact of Representatives (2010) #12;FESAC White Paper Path to Market for Compact Systems July 2012 (TRL) of a technology) distributed power generation. These units can be added to existing facilities when and where needed, or phased
Linking Bayesian networks and PLS path modeling for causal analysis
Causal knowledge based on causal analysis can advance the quality of decision-making and thereby facilitate a process of transforming strategic objectives into effective actions. Several creditable studies have emphasized the usefulness of causal analysis ... Keywords: Bayesian network, Causal analysis, PLS path modeling
Wei Wen Wu
Adaptive Path-Based Multicast on Wormhole-Routed Hypercubes
In this paper, we consider path-based multicast on wormhole-routed hypercubes. A minimum set of routing restrictions is used as the base routing algorithm. To correctly perform multicast, we present the natural list to sort the destination nodes. It ...
Chien-Min Wang; Yomin Hou; Lih-Hsing Hsu
Allinea DDT: Your Partner in Finding Debugged Paths on Mira
for > 1 year Petascaled infrastructure and UI Scaling for IBM Blue Gene /P Acceptance testing at ALCF Scaling for IBM Blue Gene /Q Addressing ALCF requirements Early access for IBM Blue Gene /Q expected.alcf.anl.gov/sites/www.alcf.anl.gov/files/L2PAllinea_0.pdf #12;A Path to Petascale on IBM BG /P Phase
Kemner, Ken
Multi-agent navigation using path-based vector fields
We present an approach to multi-agent navigation, that is based on generating potential-fields from A*-paths. We will introduce and compare two algorithms: 1) a geometrical algorithm that is based on quads, and 2) an images-based algorithm. We show empirically ...
Tristan Behrens; Randolf Sch�rfig; Tim Winkler
The U.S. Department of Energy (DOE) Richland Operations Office (RL) has adopted the 2015 Vision for Cleanup of the Hanford Site. This vision will protect the Columbia River, reduce the Site footprint, and reduce Site mortgage costs. The CH2M HILL Plateau Remediation Company's (CHPRC) Waste and Fuels Management Project (W&FMP) and their partners support this mission by providing centralized waste management services for the Hanford Site waste generating organizations. At the time of the CHPRC contract award (August 2008) slightly more than 9,000 m{sup 3} of waste was defined as 'no-path-forward waste.' The majority of these wastes are suspect transuranic mixed (TRUM) wastes which are currently stored in the low-level Burial Grounds (LLBG), or stored above ground in the Central Waste Complex (CWC). A portion of the waste will be generated during ongoing and future site cleanup activities. The DOE-RL and CHPRC have collaborated to identify and deliver safe, cost-effective disposition paths for 90% ({approx}8,000 m{sup 3}) of these problematic wastes. These paths include accelerated disposition through expanded use of offsite treatment capabilities. Disposal paths were selected that minimize the need to develop new technologies, minimize the need for new, on-site capabilities, and accelerate shipments of transuranic (TRU) waste to the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico.
Mitigating multi-path fading in a mobile mesh network
By using robots as routers, a team of networked robots can provide a communication substrate to establish a wireless mesh network. The mobile mesh network can autonomously optimize its configuration, increasing performance. One of the main sources of ... Keywords: Complex environments, Distributed optimization, Experimental and prototype results, Mobile and wireless ad-hoc networks, Multi-path fading
Marcos A. M. Vieira, Matthew E. Taylor, Prateek Tandon, Manish Jain, Ramesh Govindan, Gaurav S. Sukhatme, Milind Tambe
Generating analyses for detecting faults in path segments
Although static bug detectors are extensively applied, there is a cost in using them. One challenge is that static analysis often reports a large number of false positives but little diagnostic information. Also, individual bug detectors need to be built ... Keywords: demand-driven, generate analysis, path segment, specification
Wei Le; Mary Lou Soffa
An optimum robot path planning with payload constraints
This paper presents a general methodology for the off-line planning of optimal trajectory of robot manipulators by taking into account the grasping forces in the manipulator gripper. The mechanical energy of the actuators has been considered for the ... Keywords: Path planning, Payload constraints, Programming, Robotics
Sezimaria F. P. Saramago; Marco Ceccarelli
Land mine detecting robot capable of path planning
The purpose of Landmine detecting robot is to cover maximum possible area, presentation of landmines and the left over area on a visual map with accuracy in millimeters. This paper presents a prototype model of land mine detecting robot that is powerful ... Keywords: PIC microcontroller, graphical user interface, image processing, land mine detection, robot path mapping
Muhammad Zubair; Muhammad Ahmad Choudhry
UAV Path Planning for Structure Inspection in Windy Environments
In this paper, we consider the structure inspection problem using a miniature unmanned aerial vehicle (UAV). The influence of the wind on the UAV behavior and onboard energy limitations are important parameters that must be taken into account in the ... Keywords: Path planning, Traveling salesman problem, Vehicle routing problem, Zermelo navigation
Jose Alfredo Guerrero; Yasmina Bestaoui
Supercomputer Architectures: The Path to Tera/PetaFLOPS
Trillions of Data Items in RAM! Example: 1 KM grid over USA 4000x2000x100 = 800 million grid points If eachSupercomputer Architectures: The Path to Tera/PetaFLOPS Stephen Jenks Electrical Engineering and Computer Science firstname.lastname@example.com #12;UCI EECS Scalable Parallel and Distributed Systems Lab 2 Mostly Worked
Shinozuka, Masanobu
Quantum Path Interference through Incoherent Motions in Multilevel Quantum Systems
The fluctuating incoherent environment in the condensed phase plays an important role in the dynamics and steady states of open quantum systems. The most fascinating aspect in open quantum systems is quantum coherence induced by path interference of incoherent motions. We propose a modified Ehrenfest scheme to study the path interference of incoherent motions in multi-level quantum systems. The detailed balance is enforced by considering the quantum correction of two-time correction functions based on second order master (rate) equations. With the modified Ehrenfest method, we can study the steady state populations and other quantum observables under different thermal dynamic conditions, such as energy relaxation and non-Markovian effects. For the three level system under incoherent coupling, we show how the steady state populations are influenced by the quantum path interference of incoherent fluctuations (Agarwal-Fano-like interference). We discuss the modified Ehrenfest method and its connection with stochastic Langevin equations and second order master equations. Most existing quantum MD simulation methods, particularly Master equation techniques, fall into the category of the weak coupling limit due to the nature of detailed balance. Although the modified Ehrenfest method is amicable to second-order master equations, it is actually a better way to model the quantum path interference since it preserves multi-time memory kernels. Therefore, it enables us to study the quantum path interference. This method can be used as quantum MD simulators for large open quantum systems like solar cell, (organic) LED, etc. The future extension of this method beyond the modified Ehrenfest scheme can be done with efficient wavepacket propagation methods by treating the bath modes in full quantum mechanical way.
Xin Chen
Word Pro - S11.lwp
U.S. Energy Information Administration (EIA) Indexed Site
1 1 Table 11.1b World Crude Oil Production: Persian Gulf Nations, Non-OPEC, and World (Thousand Barrels per Day) Persian Gulf Nations b Selected Non-OPEC a Producers Total Non- OPEC a World Canada China Egypt Mexico Norway Former U.S.S.R. Russia United Kingdom United States 1973 Average .................... 20,668 1,798 1,090 165 465 32 8,324 NA 2 9,208 26,018 55,679 1975 Average .................... 18,934 1,430 1,490 235 705 189 9,523 NA 12 8,375 27,039 52,828 1980 Average .................... 17,961 1,435 2,114 595 1,936 486 11,706 NA 1,622 8,597 34,175 59,558 1985 Average .................... 9,630 1,471 2,505 887 2,745 773 11,585 NA 2,530 8,971 38,598 53,965 1990 Average .................... 15,278 1,553 2,774 873 2,553 1,630 10,975 NA 1,820 7,355 37,999 60,497 1995 Average ....................
A new method for determining fluid flow paths during hydraulic fracturing
Although hydraulic fracturing is a popular method for increasing the productivity of oil and gas wells, there is no direct way other than drilling additional boreholes to determine where the injected fluid has gone and thus what direction a fracture has propagated. Information about fluid flow paths is important for designing subsequent fracturing operations for nearby wells. Determining the locations and orientations of permeable fractures is also important in studies of potential toxic waste repositories where it is critical to understand fluid flow paths. We have developed a method for determining the orientations and locations of fractures along which fluid flows during hydraulic fracturing. The method is based on accurate determination of the locations of microseismic events, or microearthquakes, that accompany the hydraulic injection. By applying a pattern recognition technique to the locations of events from one hydraulic fracturing operation we find planes in the data along which we presume that the fluid has traveled. The planes determined using our method intersect the injection borehole and a second, nearby borehole, in regions where other data indicate that fractures are present.
Fehler, M.
Total Net Imports of Crude Oil and Petroleum Products into the U.S.
Country: Total All Countries Persian Gulf OPEC Algeria Angola Ecuador Iran Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Afghanistan Albania Andora Anguilla Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bolivia Bosnia and Herzegovina Brazil Brunei Bulgaria Burma Cambodia Cameroon Canada Cayman Islands Chad Chile China Colombia Congo (Brazzaville) Congo (Kinshasa) Cook Islands Costa Rica Croatia Cyprus Czech Republic Denmark Djbouti Dominica Dominican Republic Egypt El Salvador Equatorial Guinea Ethiopia Eritrea Estonia Fiji Finland France French Pacific Islands French Guiana Gabon Georgia, Republic of Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guinea Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Ireland Israel Italy Ivory Coast Jamaica Japan Jordan Kazakhstan Kenya Korea, South Kutubu Kyrgyzstan Latvia Lebanon Liberia Lithuania Macau S.A.R. Macedonia Madagascar Malaysia Maldives Mali Malta Marshall Islands Mauritania Mauritius Mexico Micronesia, Federated States of Midway Islands Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Namibia Nepal Netherlands Netherlands Antilles New Caledonia New Zealand Nicaragua Niger Niue Norway Oman Pakistan Panama Papau New Guinea Paracel Islands Paraguay Peru Philippines Poland Portugal Puerto Rico Romania Russia St. Kitts and Nevis St. Lucia St. Pierre and Miquelon St. Vincent and the Grenadines Samoa San Marino Senegal Serbia and Montenegro Sierra Leone Singapore Slovakia Slovenia South Africa Spain Spratly Islands Sri Lanka Suriname Swaziland Sweden Switzerland Syria Taiwan Tanzania Thailand Togo Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Uganda Ukraine United Kingdom Uruguay Uzbekistan Vanuatu Vietnam Virgin Islands (British) Virgin Islands (U.S.) Yemen Yugoslavia Other Non OPEC Period-Unit: Monthly-Thousand Barrels per Day Annual-Thousand Barrels per Day
Deconstructing internet paths: an approach for AS-level detour route discovery
Detour paths provide overlay networks with improved performance and resilience. Finding good detour routes with methods that scale to millions of nodes is a challenging problem. We propose a novel approach for decentralised discovery of detour paths ...
Sing Wang Ho; Thom Haddow; Jonathan Ledlie; Moez Draief; Peter Pietzuch
Scientists at ALS Find New Path to More Efficient Organic Solar...
Scientists at ALS Find New Path to More Efficient Organic Solar Cells Scientists at ALS Find New Path to More Efficient Organic Solar Cells Print Monday, 07 January 2013 00:00...
PATH OF CARBON I N PHOTOSYNTHESIS, XI THEl ROLE OF GLYCOLICa TIE PATH OF CARBQM IN PHOTOSYNTHESIS, XI Lo Schou, A o A oCvhose observed i n C l O2 photosynthesis. A major reaction
Schou, L.; Benson, A.A.; Bassham, J.A.; Calvin, M.
Assessing the impact of automated path planning aids in the maritime community
In the area of merchant maritime navigation, electronic charts are a relatively new tool. As a result, navigational path planning environments that allow users to manually enter a path onto an electronic chart are becoming ...
Buchin, Mariela E
ARM - Evaluation Product - Droplet Number Concentration Value-Added Product
ProductsDroplet Number Concentration Value-Added ProductsDroplet Number Concentration Value-Added Product Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Droplet Number Concentration Value-Added Product 2005.01.01 - 2010.12.30 Site(s) SGP General Description Cloud droplet number concentration is an important factor in understanding aerosol-cloud interactions. As aerosol concentration increases, it is expected that droplet number concentration, Nd, will increase and droplet size decrease, for a given liquid water path (Twomey 1977), which will greatly affect cloud albedo as smaller droplets reflect more shortwave radiation. However, the magnitude and variability of these processes under different environmental conditions is still uncertain. McComiskey et al.
Honea Path, South Carolina: Energy Resources | Open Energy Information
Honea Path, South Carolina: Energy Resources Honea Path, South Carolina: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.4465018°, -82.3915121° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.4465018,"lon":-82.3915121,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Two Paths to Transforming Markets through Public Sector Energy
Paths to Transforming Markets through Public Sector Energy Paths to Transforming Markets through Public Sector Energy Efficiency: Bottom Up versus Top Down Laura Van Wie McGrory, Philip Coleman, David Fridley, and Jeffrey Harris, Lawrence Berkeley National Laboratory (LBNL) Edgar Villaseñor Franco, Promoting an Energy-efficient Public Sector (PEPS) ABSTRACT The evolution of government purchasing initiatives in Mexico and China, part of the PEPS (Promoting an Energy-efficient Public Sector) program, demonstrates the need for flexibility in designing energy-efficiency strategies in the public sector. Several years of pursuing a top-down (federally led) strategy in Mexico produced few results, and it was not until the program was restructured in 2004 to focus on municipal-level purchasing that the program
The Data Vortex, an All Optical Path Multicomputer Interconnection Network
All optical path interconnection networks employing dense wavelength division multiplexing can provide vast improvements in supercomputer performance. However, the lack of efficient optical buffering requires investigation of new topologies and routing techniques. This paper introduces and evaluates the Data Vortex optical switching architecture which uses cylindrical routing paths as a packet buffering alternative. In addition, the impact of the number of angles on the overall network performance is studied through simulation. Using optimal topology configurations, the Data Vortex is compared to two existing switching architectures�butterfly and omega networks. The three networks are compared in terms of throughput, accepted traffic ratio, and average packet latency. The Data Vortex is shown to exhibit comparable latency and a higher acceptance rate (2x at 50 percent load) than the butterfly and omega topologies.
Cory Hawkins; Benjamin A. Small; D. Scott Wills; Keren Bergman
Gas-path leakage seal for a turbine
A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a turbine (such as combustor casing segments of a gas turbine). The seal includes a flexible and generally imperforate metal sheet assemblage having opposing first and second surfaces and two opposing raised edges extending a generally identical distance above and below the surfaces. A first cloth layer assemblage has a thickness generally equal to the previously-defined identical distance and is superimposed on the first surface between the raised edges. A second cloth layer assemblage is generally identical to the first cloth layer assemblage and is superimposed on the second surface between the raised edges.
Bagepalli, Bharat Sampathkumaran (Niskayuna, NY); Aksit, Mahmut Faruk (Troy, NY); Farrell, Thomas Raymond (Simpsonville, SC)
DOE Patents (OSTI)
A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a turbine (such as combustor casing segments of a gas turbine). The seal includes a flexible and generally imperforate metal sheet assemblage having opposing first and second surfaces and two opposing raised edges extending a generally identical distance above and below the surfaces. A first cloth layer assemblage has a thickness generally equal to the previously-defined identical distance and is superimposed on the first surface between the raised edges. A second cloth layer assemblage is generally identical to the first cloth layer assemblage and is superimposed on the second surface between the raised edges. 5 figs.
Bagepalli, B.S.; Aksit, M.F.; Farrell, T.R.
A Surprising Path for Proton Transfer Without Hydrogen Bonds Print A Surprising Path for Proton Transfer Without Hydrogen Bonds Print Hydrogen bonds are found everywhere in chemistry and biology and are critical in DNA and RNA. A hydrogen bond results from the attractive dipolar interaction of a chemical group containing a hydrogen atom with a group containing an electronegative atom, such as nitrogen, oxygen, or fluorine, in the same or a different molecule. Conventional wisdom has it that proton transfer from one molecule to another can only happen via hydrogen bonds. Recently, a team of Berkeley Lab and University of Southern California researchers, using the ALS, discovered to their surprise that in some cases, protons can find ways to transfer even when hydrogen bonds are blocked. Sometimes You Have to
New Accelerator to Study Steps on the Path to Fusion
Accelerator Will Accelerator Will Study Steps on the Path to Fusion Power New Accelerator Will Study Steps on the Path to Fusion Power Unusual Machine Tailor-made to Examine Heavy-ion Fusion May 10, 2012 The accelerator, looking "downstream." In the foreground is the grounded cage th The accelerator, looking "downstream." In the foreground is the grounded cage that encloses the 150,000-volt injector. See more photos at http://newscenter.lbl.gov/news-releases/2012/05/08/ndcx-accelerator/ (Photo: Roy Kaltschmidt, LBNL) The Neutralized Drift Compression Experiment, NDCX-II has recently marked successful completion. Designed with the aid of computer simulations executed at NERSC, the accelerator was created to study warm dense matter, an important research field in itself and particularly relevant to nuclear
An Evaluation of MWR Retrievals of Liquid Water Path
Evaluation of MWR Retrievals Evaluation of MWR Retrievals of Liquid Water Path and Precipitable Water Vapor R. T. Marchand and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction This paper offers some observations on the quality of Microwave Radiometer (MWR) retrievals of precipitable water vapor (PWV) and liquid water path (LWP). The paper shows case study comparisons between the standard "statistical" approach and those obtained using an iterative solution of the microwave radiative transfer equations. These examples show how improvements in the retrieval of LWP can be obtained by using an iterative approach, but that possible improvements are limited by the accuracy of the forward model absorption coefficients and errors in the brightness temperature measurements. Each of these effects limits the
Quantum path interferences or resonances in multilevel dissipative quantum systems play an important and intriguing role in the transport processes of nanoscale systems. Many previous minimalistic models used to describe the quantum path interference driven by incoherent fields are based on the approximations including the second order perturbation for the weak coupling limit, the ad-hoc choices of two-time correlation functions and $\\it{etc}$. On the other hand, the similar model to study the non-adiabatic molecular electronic excitation have been extensively developed and many efficient quantum molecular dynamics simulation schemes, such as the Ehrenfest scheme, have been proposed. In this paper, I aim to propose an unified model, extend the Ehrenfest scheme to study the interactions of system-light and system-phonon simultaneously and gain insight into and principles of the roles of quantum path interferences in the realistic molecular systems. I discuss how to derive the time-dependent stochastic Schr$\\ddot{o}$dinger equation from the Ehrenfest scheme as a foundation to discuss the detailed balance for the weak coupling limit and therefore the quantum correction in the Ehrenfest scheme. Different from the master equation technique, the Ehrenfest scheme doesn't need any specific assumptions about spectral densities and two time correlation functions. With simple open two-level and three-level quantum systems, I show the effect of the quantum path interference on the steady state populations. Currently I only focus on the role of the phonon thermal reservoir. The electromagnetic field (solar light) will be modeled as a thermal reservoir and discussed in detail in the future paper.
A Rigorous Path Integral Construction in any Dimension
We propose a new rigorous time-slicing construction of the phase space Path Integrals for propagators both in Quantum Mechanics and Quantum Field Theory for a fairly general class of quantum observables (e.g. the Schroedinger hamiltonians with smooth scalar potentials of any power growth). Moreover we allow time-dependent hamiltonians and a great variety of discretizations, in particular, the standard, Weyl, and normal ones.
Alexander Dynin
Dynamical paths and universality in continuous variables open systems
We address the dynamics of quantum correlations in continuous variable open systems and analyze the evolution of bipartite Gaussian states in independent noisy channels. In particular, upon introducing the notion of dynamical path through a suitable parametrization for symmetric states, we focus attention on phenomena that are common to Markovian and non-Markovian Gaussian maps under the assumptions of weak coupling and secular approximation. We found that the dynamical paths in the parameter space are universal, that is they do depend only on the initial state and on the effective temperature of the environment, with non Markovianity that manifests itself in the velocity of running over a given path. This phenomenon allows one to map non-Markovian processes onto Markovian ones and it may reduce the number of parameters needed to study a dynamical process, e.g. it may be exploited to build constants of motions valid for both Markovian and non-Markovian maps. Universality is also observed in the value of Gaussian discord at the separability threshold, which itself is a function of the sole initial conditions in the limit of high temperature. We also prove the existence of excluded regions in the parameter space, i.e. of sets of states which cannot be linked by any Gaussian dynamical map.
Andrea Cazzaniga; Sabrina Maniscalco; Stefano Olivares; Matteo G. A. Paris
Convergence Characteristics of the Cumulant Expansion for Fourier Path Integrals
The cumulant representation of the Fourier path integral method is examined to determine the asymptotic convergence characteristics of the imaginary-time density matrix with respect to the number of path variables $N$ included. It is proved that when the cumulant expansion is truncated at order $p$, the asymptotic convergence rate of the density matrix behaves like $N^{-(2p+1)}$. The complex algebra associated with the proof is simplified by introducing a diagrammatic representation of the contributing terms along with an associated linked-cluster theorem. The cumulant terms at each order are expanded in a series such that the the asymptotic convergence rate is maintained without the need to calculate the full cumulant at order $p$. Using this truncated expansion of each cumulant at order $p$, the numerical cost in developing Fourier path integral expressions having convergence order $N^{-(2p+1)}$ is shown to be approximately linear in the number of required potential energy evaluations making the method promising for actual numerical implementation.
Sharif D. Kunikeev; David L. Freeman; J. D. Doll
Reaction paths and free energy profiles for conformational transitions: An internal coordinate approach
Reaction paths and free energy profiles for conformational transitions: An internal coordinate to study in Cartesian space. A procedure to obtain reaction paths and free energy profiles in solution is also proposed. The free energy profile along the path in solution is calculated utilizing a free energy
Lazaridis, Themis
Complexity results on labeled shortest path problems from wireless routing metrics
Metrics to assess the cost of paths through networks are critical to ensuring the efficiency of network routing. This is particularly true in multi-radio multi-hop wireless networks. Effective metrics for these networks must measure the cost of a wireless ... Keywords: Approximation algorithms, Labeled paths, Shortest paths, Wireless routing metrics
Charles B. Ward; Nathan M. Wiegand
A review of path planning and mapping technologies for autonomous mobile robot systems
This paper presents a review of various technologies for autonomous movement of a robot. Path planning is the process of generating a collision free path to the goal. Simultaneous Localization And Mapping (SLAM) is the process of creating a map of the ... Keywords: SLAM, anytime search algorithm, hippocampus, hybrid map, incremental search algorithm, localization, mapping, path planning, topological map
Nitin Kumar Dhiman; Dipti Deodhare; Deepak Khemani
From link dynamics to path lifetime and packet-length optimization in MANETs
We present an analytical framework and statistical models to accurately characterize the lifetime of a wireless link and multi-hop paths in mobile ad hoc networks (MANET). We show that the lifetimes of links and paths can be computed through a two-state ... Keywords: Analytical mobility modeling, Link dynamics, Markov model, Optimal information segmentation, Path lifetime
Xianren Wu; Hamid R. Sadjadpour; J. J. Garcia-Luna-Aceves
Robot path generation method for a welding system based on pseudo stereo visual servo control
A path generation method for robot-based welding systems is proposed. The method that is a modification of the method "teaching by showing" is supported by the recently developed pseudo stereovision system (PSVS). A path is generated by means of the ... Keywords: calibration, complex image, path generation, pseudo stereovision system, robotic application humanPT, target-object
Theodore P. Pachidis; Kostas N. Tarchanidis; John N. Lygouras; Philippos G. Tsalides
Possible connection between the optimal path and flow in percolation clusters Eduardo Lpez,1
path. We calculate the probability distribution P opt r,L of the optimal path length opt, and find the tracer path length tr of tracers inside percolation through their probability distribution P tr r,L . We in porous media related to second- ary oil extraction, in which an invading fluid water, steam, etc
Stanley, H. Eugene
Jan 21, 2008 ... minimizes production, setup, and inventory costs, and meets without delay the ... The machines can have different production and setup costs,.
Particle Production from Geometric Transition in Expanding Universe
The geometric transitions from the evolution in the complex plane of time provide channels for particle production for a quantum field in expanding universes. The production rate for one pair is obtained by squaring and summing the scattering matrix between the in-vacuum and the transported one over all possible independent closed paths of winding number 1.
Sang Pyo Kim
Total World Supply Non-OPEC Supply ... natural gas plant liquids, biofuels, other ... finished aviation gasoline, kerosene, petrochemical feedstocks, special ...
Step 2. Identify the Code and Compliance Path | Building Energy Codes
2. Identify the Code and Compliance Path 2. Identify the Code and Compliance Path It is important to review the submitted documentation and identify which code was used for the building. Next, to determine whether the building complies with that code, the path used to demonstrate compliance must be identified. There are several compliance paths available in the 2009 and 2012 IECC and ASHRAE Standards 90.1-2007 and 90.1-2010. Each of these codes/standards contains a prescriptive path that clearly states specific requirements. Prescriptive paths limit design freedom. Each of these codes/standards also has a performance-based path that provides more design freedom and can lead to innovative design, but involves more complex energy simulations and tradeoffs between systems. Residential and smaller commercial buildings
TOPIC Brief BUILDING TECHNOLOGIES PROGRAM Choosing an Energy Code Compliance Path TOPIC BRIEF 1
Choosing an Energy Code Compliance Path TOPIC BRIEF 1 Choosing an Energy Code Compliance Path TOPIC BRIEF 1 Choosing an Energy Code Compliance Path One challenge that awaits any building designer is choosing the appropriate compliance path through the applicable building energy code. This is not a trivial decision-energy codes are marvels of flexibility, offering multiple compliance paths to suit all types of designers. E ach path has its own pluses and minuses, which may include differences in stringency, complexity, and potentially even limitations on building designs. This topic brief focuses on the compliance paths that are available in the following model codes and standards: * 2009 International Energy Conservation Code (IECC) and 2012
Exploring the Paths to One Million Plug-in Electric Vehicles by 2015 Using MA3T Model
The U.S. government s goal, announced in 2011, of putting one million PEVs on the road by 2015 represents a key milestone for the deployment of PEVs in the U.S. However, the forecasts of PEV consumer adoption are not as optimistic as manufacturers announced production claims. With an overarching objective of exploring alternative paths towards one-million PEVs on the road in the U.S. by 2015, this paper presents a number of possible strategies and evaluates their impacts on PEV market share.
Dong, Jing [ORNL; Lin, Zhenhong [ORNL
aVoil� : optimizing and evaluating procurement paths across the commercial aviation product life cycle
Spirit AeroSystems is engaged in an unprecedented collaboration to supply a composite fuselage section for a new aircraft program. In most cases, Spirit cannot effectively leverage its composite sourcing experience with ...
Vento, Michael Thomas
Intercooler flow path for gas turbines: CFD design and experiments
The Advanced Turbine Systems (ATS) program was created by the U.S. Department of Energy to develop ultra-high efficiency, environmentally superior, and cost competitive gas turbine systems for generating electricity. Intercooling or cooling of air between compressor stages is a feature under consideration in advanced cycles for the ATS. Intercooling entails cooling of air between the low pressure (LP) and high pressure (HP) compressor sections of the gas turbine. Lower air temperature entering the HP compressor decreases the air volume flow rate and hence, the compression work. Intercooling also lowers temperature at the HP discharge, thus allowing for more effective use of cooling air in the hot gas flow path.
Agrawal, A.K.; Gollahalli, S.R.; Carter, F.L. [Univ. of Oklahoma, Norman, OK (United States)] [and others
Teleconference: Teleconference: 2. DOE EM Landfill Workshop & Path Forward Office of Groundwater and Soil Remediation US Department of Energy July 2009 Slides prepared by CRESP DOE EM Landfill Workshop 2 Objective: - Discuss findings & recommendations from ITR visits to DOE facilities - Identify technology gaps and needs to advance EM disposal practice of the future. - Obtain input from experts within and outside of DOE. Panels: Waste subsidence: prediction and impacts Waste forecasting: predicting volumes and WACs Final covers: long-term performance and monitoring Liners: role and need Workshop Approach and Structure * Objective: - Discuss each issue - Evaluate the merits of each issue - Create a prioritized list of technologies needs for Office of
Glass Production
40, pp. 162 - 186. Glass Production, Shortland, UEE 2009AINES Short Citation: Shortland 2009, Glass Production. UEE.Andrew, 2009, Glass Production. In Willeke Wendrich (ed. ),
Shortland, Andrew
Production Targets
Hall (2005), �Prices, Production, and Inventories over theProduction Targets ? Guillermo Caruana CEMFI caruana@cem?.esthe theory using monthly production targets of the Big Three
Caruana, Guillermo; Einav, Liran
Pottery Production
Paul T. Nicholson. ) Pottery Production, Nicholson, UEE 2009Short Citation: Nicholson 2009, Pottery Production. UEE.Paul T. , 2009, Pottery Production. In Willeke Wendrich (
Nicholson, Paul T.
Cordage Production
294: fig. 15-3). Cordage Production, Veldmeijer, UEE 2009Short Citation: Veldmeijer, 2009, Cordage Production. UEE.Andr� J. , 2009, Cordage Production. In Willeke Wendrich (
Veldmeijer, Andr� J.
RAPIDD Gives ALS Users a Faster Path to Beam Time
RAPIDD Gives ALS Users a Faster RAPIDD Gives ALS Users a Faster Path to Beam Time RAPIDD Gives ALS Users a Faster Path to Beam Time Print Monday, 28 October 2013 08:31 ALS users are invited to check out our web pages detailing our new RAPIDD proposal process. This combined process for Rapid Access Proposals, Industry, and Director's Discretion beam time accommodates users who require limited but rapid access to the ALS. Proposals may be submitted at any time. RAPIDD complements the existing six-month General User Proposal process, which remains the access mechanism of choice for users who require significant beam time for an extended program of research, or for those wanting to perform complex experiments involving setup or reorganization of equipment at a beamline. The ALS structural biology community has been using RAPIDD for a year, with 160 proposals receiving beam time in that period. As of July 2013, RAPIDD access was extended to beamlines 7.3.3 (SAXS/WAXS), 8.3.2 (microtomography) and 11.3.1 (small molecule crystallography) and to users from industrial groups.
Gas-path leakage seal for a gas turbine
A gas-path leakage seal is described for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a generally imperforate foil-layer assemblage which is generally impervious to gas and is located in the leakage-gap. The seal also includes a cloth-layer assemblage generally enclosingly contacting the foil-layer assemblage. In one seal, the first edge of the foil-layer assemblage is left exposed, and the foil-layer assemblage resiliently contacts the first member near the first edge to reduce leakage in the ``plane`` of the cloth-layer assemblage under conditions which include differential thermal growth of the two members. In another seal, such leakage is reduced by having a first weld-bead which permeates the cloth-layer assemblage, is attached to the metal-foil-layer assemblage near the first edge, and unattachedly contacts the first member. 4 figs.
Wolfe, C.E.; Dinc, O.S.; Bagepalli, B.S.; Correia, V.H.; Aksit, M.F.
A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a generally imperforate foil-layer assemblage which is generally impervious to gas and is located in the leakage-gap. The seal also includes a cloth-layer assemblage generally enclosingly contacting the foil-layer assemblage. In one seal, the first edge of the foil-layer assemblage is left exposed, and the foil-layer assemblage resiliently contacts the first member near the first edge to reduce leakage in the "plane" of the cloth-layer assemblage under conditions which include differential thermal growth of the two members. In another seal, such leakage is reduced by having a first weld-bead which permeates the cloth-layer assemblage, is attached to the metal-foil-layer assemblage near the first edge, and unattachedly contacts the first member.
Wolfe, Christopher E. (Schenectady, NY); Dinc, Osman S. (Troy, NY); Bagepalli, Bharat S. (Schenectady, NY); Correia, Victor H. (New Lebanon, NY); Aksit, Mahmut F. (Troy, NY)
On models of nonlinear evolution paths in adiabatic quantum algorithms
In this paper, we study two different nonlinear interpolating paths in adiabatic evolution algorithms for solving a particular class of quantum search problems where both the initial and final Hamiltonian are one-dimensional projector Hamiltonians on the corresponding ground state. If the overlap between the initial state and final state of the quantum system is not equal to zero, both of these models can provide a constant time speedup over the usual adiabatic algorithms by increasing some another corresponding "complexity". But when the initial state has a zero overlap with the solution state in the problem, the second model leads to an infinite time complexity of the algorithm for whatever interpolating functions being applied while the first one can still provide a constant running time. However, inspired by a related reference, a variant of the first model can be constructed which also fails for the problem when the overlap is exactly equal to zero if we want to make up the "intrinsic" fault of the second model-an increase in energy. Two concrete theorems are given to serve as explanations why neither of these two models can improve the usual adiabatic evolution algorithms for the phenomenon above. These just tell us what should be noted when using certain nonlinear evolution paths in adiabatic quantum algorithms for some special kind of problems.
Jie Sun; Songfeng Lu; Samuel L. Braunstein
Hydrogen Production
Hydrogen Production DELIVERY FUEL CELLS STORAGE PRODUCTION TECHNOLOGY VALIDATION CODES & STANDARDS SYSTEMS INTEGRATION ANALYSES SAFETY EDUCATION RESEARCH & DEVELOPMENT Economy...
Component-wise method of smoothing the curvature of spatial paths constructed by noisy measurements in robot motion planning problems
A motion planning problem for a robot is considered. A robot follows a path in the manual mode and path coordinates are measured by a GNSS receiver. Repeating this path in the automatic mode requires constructing a geometric path that satisfies certain ...
R. F. Gilimyanov
Quantum Calisthenics: Gaussians, The Path Integral and Guided Numerical Approximations
It is apparent to anyone who thinks about it that, to a large degree, the basic concepts of Newtonian physics are quite intuitive, but quantum mechanics is not. My purpose in this talk is to introduce you to a new, much more intuitive way to understand how quantum mechanics works. I begin with an incredibly easy way to derive the time evolution of a Gaussian wave-packet for the case free and harmonic motion without any need to know the eigenstates of the Hamiltonian. This discussion is completely analytic and I will later use it to relate the solution for the behavior of the Gaussian packet to the Feynman path-integral and stationary phase approximation. It will be clear that using the information about the evolution of the Gaussian in this way goes far beyond what the stationary phase approximation tells us. Next, I introduce the concept of the bucket brigade approach to dealing with problems that cannot be handled totally analytically. This approach combines the intuition obtained in the initial discussion, as well as the intuition obtained from the path-integral, with simple numerical tools. My goal is to show that, for any specific process, there is a simple Hilbert space interpretation of the stationary phase approximation. I will then argue that, from the point of view of numerical approximations, the trajectory obtained from my generalization of the stationary phase approximation specifies that subspace of the full Hilbert space that is needed to compute the time evolution of the particular state under the full Hamiltonian. The prescription I will give is totally non-perturbative and we will see, by the grace of Maple animations computed for the case of the anharmonic oscillator Hamiltonian, that this approach allows surprisingly accurate computations to be performed with very little work. I think of this approach to the path-integral as defining what I call a guided numerical approximation scheme. After the discussion of the anharmonic oscillator I will turn to tunneling problems and show that the instanton can also be though of in the same way. I will do this for the classic problem of a double well potential in the extreme limit when the splitting between the two lowest levels is extremely small and the tunneling rate from one well to another is also very small.
Weinstein, Marvin; /SLAC
West Coast (PADD 5) Total Crude Oil and Products Imports
May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 View May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 View History All Countries 40,216 40,703 46,595 47,285 42,741 43,793 1981-2013 Persian Gulf 14,230 13,361 14,442 14,250 16,435 14,465 1993-2013 OPEC* 22,029 19,569 22,946 25,238 25,775 23,528 1993-2013 Algeria 344 744 1,559 1995-2013 Angola 1,885 1,648 3,742 2,790 2,098 2,497 1995-2013 Ecuador 4,439 4,264 3,739 8,092 5,312 6,177 1993-2013 Iraq 2,870 2,210 5,918 5,585 4,514 4,960 1995-2013 Kuwait 1,297 686 314 1,034 295 1995-2013 Libya 149 106 12 382 2005-2013 Nigeria 296 293 7 1995-2013 Qatar 1995-2004 Saudi Arabia 10,063 10,465 8,210 8,665 10,887 9,210 1993-2013 United Arab Emirates 1995-2011 Venezuela 982 279 66 1993-2013 Non OPEC*
Path Forward to Design and Implement an On-going Engineering Management Handbook.
??The purpose of this thesis was to determine a path forward to design and implement an on-going Engineering Management Handbook. A review was performed to� (more)
Kring, Robert B
Policy Strategies and Paths to promote Sustainable Energy Systems - The dynamic Invert Simulation Tool
Schemes for sustainable energy systems�. InternationalPaths to promote Sustainable Energy Systems - The dynamicmoney - for promoting sustainable energy systems - be spent
Stadler, Michael; Kranzl, Lukas; Huber, Claus; Haas, Reinhard; Tsioliaridou, Elena
Characterization of the limit point of the central path in semidefinite ...
Path-following methods. In H. Wolkowicz, R. Saigal, and L. Van-. denberghe, editors, Handbook of Semide nite Programming, pages 267{306. Kluwer Academic.
A Success Path from Process R&D to Commercial Plants
Abstract Scope, The path from process conception to commercial ... Energy Recovery from High Temperature Steel, Copper and Nickel Smelter Slags � Impact of�...
Light absorption cell combining variable path and length pump
This invention is comprised of a device for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid therebetween and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data.
Prather, W.S.
Critical Path-Based Thread Placement for NUMA Systems
Multicore multiprocessors use Non Uniform Memory Architecture (NUMA) to improve their scalability. However,NUMA introduces performance penalties due to remote memory accesses. Without efficiently managing data layout and thread mapping to cores, scientific applications, even if they are optimized for NUMA, may suffer performance loss. In this paper, we present an algorithm that optimizes the placement of OpenMP threads on NUMA processors. By collecting information from hardware counters and defining new metrics to capture the effects of thread placement, the algorithm reduces NUMA performance penalty by minimizing the critical path of OpenMP parallel regions and by avoiding local memory resource contention. We evaluate our algorithm with NPB benchmarks and achieve performance improvement between 8.13% and 25.68%, compared to the OS default scheduling.
Su, Chun-Yi [Virginia Polytechnic Institute and State University (Virginia Tech); Li, Dong [ORNL; Nikolopoulos, Dimitrios [FORTH-ICS; Grove, Matthew [Virginia Polytechnic Institute and State University (Virginia Tech); Cameron, Kirk W. [Virginia Polytechnic Institute and State University (Virginia Tech); de Supinski, Bronis R. [Lawrence Livermore National Laboratory (LLNL)
Long-length contaminated equipment disposal process path document
The first objective of the LLCE Process Path Document is to guide future users of this system on how to accomplish the cradle-to-grave process for the disposal of long-length equipment. Information will be provided describing the function and approach to each step in the process. Pertinent documentation, prerequisites, drawings, procedures, hardware, software, and key interfacing organizations will be identified. The second objective is related to the decision to lay up the program until funding is made available to complete it or until a need arises due to failure of an important component in a waste tank. To this end, the document will identify work remaining to be completed for each step of the process and open items or issues that remain to be resolved.
McCormick, W.A.
Path-integral simulations of hydrogen and hydrogen plasmas
Feynman path-integral simulations of a system consisting of protons and distinguishable electrons under periodic boundary conditions are presented with the aim of calculating the phase diagram of hydrogen at various temperatures and densities. For a two-electron--two-proton system, for which Fermi statistics can be ignored, the equations of state and the radial distribution functions are obtained, including the effects of temperature and pressure ionization, for temperatures down to 0.68 eV and densities up to 1 g cm{sup {minus}3}. These results are compared to other models. Systems with more than two distinguishable electrons are found to be thermodynamically unstable, by collapsing into a cluster at low temperature, suggesting that further simulations be used to investigate the stability of Boltzmann matter.
Theilhaber, J.; Alder, B.J. (Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (US))
A Path to Successful Energy Retrofits: Early Collaboration Through
Through Through Integrated Project Delivery Teams Title A Path to Successful Energy Retrofits: Early Collaboration Through Integrated Project Delivery Teams Publication Type Report Refereed Designation Refereed LBNL Report Number LBNL-6130E Year of Publication 2012 Authors Parrish, Kristen Date Published 10/2012 Publisher Lawrence Berkeley National Laboratory Abstract This document guides you through a process for the early design phases of retrofit projects to help you mitigate frustrations commonly experienced by building owners and designers. It outlines the value of forming an integrated project delivery team and developing a communication and information-sharing infrastructure that fosters collaboration. This guide does not present a complete process for designing an energy retrofit for a building. Instead, it focuses on the early design phase tasks related to developing and selecting energy efficiency measures (EEMs) that benefit from collaboration, and highlights the resulting advantages.
LANL achieves milestone on path to zero wastewater discharge
LANL achieves milestone on wastewater discharge LANL achieves milestone on wastewater discharge LANL achieves milestone on path to zero wastewater discharge Industrial wastewater will be recycled as the result of a long-term strategy to treat wastewater rather than discharging it into the environment. January 20, 2012 Aerial view of Los Alamos National Laboratory Aerial view of Los Alamos National Laboratory. Contact Colleen Curran Communications Office (505) 664-0344 Email Improved compliance while recycling millions of gallons of industrial wastewater LOS ALAMOS, New Mexico, January 20, 2012-Millions of gallons of industrial wastewater will be recycled at Los Alamos National Laboratory as the result of a long-term strategy to treat wastewater rather than discharging it into the environment. The U. S. Environmental Protection Agency, which issues permits for
Software-based tool path evaluation for environmental sustainability
ways of estimating energy consumption and resul- tant green11] Dietmair A, Verl A. Energy consumption modeling andpotential for energy consumption in discrete part production
KONG, DAEYOUNG; Seungchoun Choi; Yusuke Yasui; Sushrut Pavanaskar; Dornfeld, David; Wright, Paul
World Oil Price Cases (released in AEO2005)
World oil prices in AEO2005 are set in an environment where the members of OPEC are assumed to act as the dominant producers, with lower production costs than other supply regions or countries. Non-OPEC oil producers are assumed to behave competitively, producing as much oil as they can profitability extract at the market price for oil. As a result, the OPEC member countries will be able effectively to set the price of oil when they can act in concert by varying their aggregate production. Alternatively, OPEC members could target a fixed level of production and let the world market determine the price.
Short-Term Energy Outlook Figures
Independent Statistics & Analysis" Independent Statistics & Analysis" ,"U.S. Energy Information Administration" ,"Short-Term Energy Outlook Figures, December 2013" ,"U.S. Prices" ,,"West Texas Intermediate (WTI) Crude Oil Price" ,,"U.S. Gasoline and Crude Oil Prices" ,,"U.S. Diesel Fuel and Crude Oil Prices" ,,"Henry Hub Natural Gas Price" ,,"U.S. Natural Gas Prices" ,"World Liquid Fuels" ,,"World Liquid Fuels Production and Consumption Balance" ,,"Estimated Unplanned Crude Oil Production Outages Among OPEC Producers" ,,"Estimated Unplanned Crude Oil Production Disruptions Among non-OPEC Producers" ,,"World Liquid Fuels Consumption" ,,"World Liquid Fuels Consumption Growth"
Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths
Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths corrected.S.A. Abstract The calculation of a minimum free energy path can be considered as a two-point boundary value box solvers. The second paragraph of Section 1 is corrected. Because free energy is defined in terms
Skeel, Robert
Relative Entropy and Free Energy Dualities: Connections to Path Integral and KL control
Relative Entropy and Free Energy Dualities: Connections to Path Integral and KL control Evangelos A and the fundamental dualities between free energy and relative entropy. We derive the path integral optimal control on Dynamic Programming with PI based on the duality between free energy and relative entropy. Moreover we
Anderson, Richard
Flight path-driven mitigation of wavefront curvature effects in SAR images
A wavefront curvature effect associated with a complex image produced by a synthetic aperture radar (SAR) can be mitigated based on which of a plurality of possible flight paths is taken by the SAR when capturing the image. The mitigation can be performed differently for different ones of the flight paths.
Doerry, Armin W. (Albuquerque, NM)
Path Diversity over Packet Switched Networks: Performance Analysis and Rate Allocation
Path diversity works by setting up multiple parallel connections between the end points using the topological path redundancy of the network. In this paper, \\textit{Forward Error Correction} (FEC) is applied across multiple independent paths to enhance the end-to-end reliability. Network paths are modeled as erasure Gilbert-Elliot channels. It is known that over any erasure channel, \\textit{Maximum Distance Separable} (MDS) codes achieve the minimum probability of irrecoverable loss among all block codes of the same size. Based on the adopted model for the error behavior, we prove that the probability of irrecoverable loss for MDS codes decays exponentially for an asymptotically large number of paths. Then, optimal rate allocation problem is solved for the asymptotic case where the number of paths is large. Moreover, it is shown that in such asymptotically optimal rate allocation, each path is assigned a positive rate \\textit{iff} its quality is above a certain threshold. The quality of a path is defined as t...
Fashandi, Shervan; Khandani, Amir K
On the Relationship of Tornado Path Length and Width to Intensity
Reported path lengths and widths of tornadoes have been modeled using Weibull distributions for different Fujita (F) scale values. The fits are good over a wide range of lengths and widths. Path length and width tend to increase with increasing F ...
Harold E. Brooks
iPlane Nano: Path Prediction for Peer-to-Peer Applications Harsha V. Madhyastha
iPlane Nano: Path Prediction for Peer-to-Peer Applications Harsha V. Madhyastha Ethan Katz present the design and implementa- tion of iPlane Nano, a library for delivering Internet path information to peer-to-peer applications. iPlane Nano is itself a peer-to-peer application, and scales to a large
Krishnamurthy, Arvind
An optimum path planning for cassino parallel manipulator by using inverse dynamics
In this paper, a novel algorithm is formulated and implemented for optimum path planning of parallel manipulators. A multi-objective optimisation problem has been formulated for an efficient numerical solution procedure through kinematic and dynamic ... Keywords: Parallel Manipulators, Path Planning, Robotics, Simulation
G. Carbone; M. Ceccarelli; P. j. Oliveira; S. f. p. Saramago; J. c. m. Carvalho
Mobile robot path planning algorithm by equivalent conduction heat flow topology optimization
This paper addresses the path planning problem for a point robot moving in a planar environment filled with obstacles. Our approach is based on the principles of thermal conduction and structural topology optimization and rests on the observation that, ... Keywords: Conduction heat flow, Mobile robot, Path planning, Topology optimization
Jae Chun Ryu; Frank Chongwoo Park; Yoon Young Kim
Spare capacity reprovisioning for high availability shared backup path protection connections
Shared backup path protection (SBPP) has been widely studied in the Generalized MPLS (GMPLS) networks due to its efficient spare capacity sharing as well as simplicity and flexibility in service provisioning. This paper presents a novel availability ... Keywords: End-to-end availability, Generalized multi-protocol label switching (GMPLS), Shared backup path protection (SBPP), Spare capacity reprovisioning
Qi Guo; Pin-Han Ho; Hsiang-Fu Yu; Janos Tapolcai; Hussein T. Mouftah
Observations on the Variability of the Gulf Stream Path between 74�W and 70�W
The Gulf Stream path varies in a wavelike fashion in the deep water downstream of Cape Hatteras, energetic within a range of wavelengths ? from 150 km to over 1000 km, and periods ? from 4 d to over 500 d. The authors determined the path from the ...
Harilaos Kontoyiannis; D. Randolph Watts
On implementing provenance-aware regular path queries with relational query engines
Use of graphs is growing rapidly in social networks, semantic web, biological databases, scientific workflow provenance, and other areas. Regular Path Queries (RPQs) can be seen as a core graph query language to answer pattern-based reachability queries. ... Keywords: datalog, graph querying, regular path queries
Saumen Dey; V�ctor Cuevas-Vicentt�n; Sven K�hler; Eric Gribkoff; Michael Wang; Bertram Lud�scher
Smooth path and speed planning for an automated public transport vehicle
This paper presents a path and speed planner for automated public transport vehicles in unstructured environments. Since efficiency and comfort are two of the key issues in promoting this kind of transportation system, they are dealt with explicitly ... Keywords: Automated vehicles, Path planning, Speed planning
Jorge Villagra; Vicente Milan�s; Joshu� P�rez; Jorge Godoy
Energy-Efficient Path Planning for Solar-Powered Mobile Robots
Energy-Efficient Path Planning for Solar-Powered Mobile Robots Patrick A. Plonski email@example.com Abstract We explore the problem of energy-efficient, time-constrained path planning of a solar pow- ered circuit and basic GPS localization, and this solar map can be used for energy-efficient navigation
Minnesota, University of
Sample path large deviations of Poisson shot noise with heavy tail semi-exponential distributions
Sample path large deviations of Poisson shot noise with heavy tail semi-exponential distributions with heavy-tailed semi-exponential distributions satisfy a large deviation principle with a rate function do not depend on the shot shape. Keywords: Heavy tail distributions; sample path large deviations
Duffy, Ken
Improving the accuracy of the optimum-path forest supervised classifier for large datasets
In this work, a new approach for supervised pattern recognition is presented which improves the learning algorithm of the Optimum-Path Forest classifier (OPF), centered on detection and elimination of outliers in the training set. Identification of outliers ... Keywords: learning algorithm, optimum-path forest classifier, outlier detection, supervised classification
C�sar Castelo-Fern�ndez; Pedro J. De Rezende; Alexandre X. Falc�o; Jo�o Paulo Papa
On-line free-flight path optimization based on improved genetic algorithms
Free flight (FF) is the ideal strategy of current investigations on air traffic management systems, where an on-line flight path optimization algorithm is of top importance. This paper proposes an innovative algorithm with potential real-time properties ... Keywords: Chromosome, Flight path, Free flight, Genetic algorithm, Structured airspace
Xiao-Bing Hu; Shu-Fan Wu; Ju Jiang
Observability-based local path planning and obstacle avoidance using bearing-only measurements
In this paper we present an observability-based local path planning and obstacle avoidance technique that utilizes an extended Kalman Filter (EKF) to estimate the time-to-collision (TTC) and bearing to obstacles using bearing-only measurements. To ensure ... Keywords: Collision avoidance, Miniature air vehicle, Observability, Path planning
Huili Yu, Rajnikant Sharma, Randal W. Beard, Clark N. Taylor
Path Selection Criteria for P2P Voice Cheng-Ying Ou, Chia-Li
should be the relay peer? such that the alternative path is better than the default one... 10 #12;A Fundamental QuestionQ Which is the right path selection criteria? Source Rate? Congestion Level? Delay;Two Questions to AddressQ 1 Does delay jitter speaks for all?1. Does delay jitter speaks for all
Huang, Polly
Testing Oil Saturation Distribution in Migration Paths Using MRI1 Jianzhao Yan 1
- 1 - Testing Oil Saturation Distribution in Migration Paths Using MRI1 Jianzhao Yan 1 , Xiaorong media, and to measure oil and water saturation. Although this technique has great advantages compared14. Using15 MRI, the oil secondary migration paths are scanned to measure the saturation distribution during
Paris-Sud XI, Université de
Community-Based Forest (Natural) Resource Management: A Path to Sustainable
Community-Based Forest (Natural) Resource Management: A Path to Sustainable Community-Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development Jump to: navigation, search Name Community-Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development Agency/Company /Organization Regional Community Forestry Training Center for Asia and the Pacific Sector Land Focus Area Forestry Topics Implementation, Background analysis Resource Type Lessons learned/best practices Website http://recoftc.org/site/filead Country Philippines, Nepal UN Region South-Eastern Asia References Community-Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development[1] Community-Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development Screenshot
Event:Lighting Our Path: The Philips Experience in Promoting Advanced
Path: The Philips Experience in Promoting Advanced Path: The Philips Experience in Promoting Advanced Lighting Technologies Jump to: navigation, search Calendar.png Lighting Our Path: The Philips Experience in Promoting Advanced Lighting Technologies: 12:30-2:00 Eastern Time on 2011/05/11 David Rodgers of the Global Environment Facility (GEF) would like to make you all aware of the event below titled Lighting Our Path: The Philips Experience in Promoting Advanced Lighting Technologies to be held next Weds. May 11. Event Details Name Lighting Our Path: The Philips Experience in Promoting Advanced Lighting Technologies Date 2011/05/11 Time 12:30-2:00 Eastern Time Location Washington, District of Columbia Organizer Global Environment Facility Tags CLEAN, LEDS Website Event Website Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like.
RightPath Team Recognized by Secretary Chu | National Nuclear Security
National Nuclear Security Administration (NNSA)
RightPath Team Recognized by Secretary Chu | National Nuclear Security RightPath Team Recognized by Secretary Chu | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > RightPath Team Recognized by Secretary Chu RightPath Team Recognized by Secretary Chu Posted By Office of Public Affairs During a ceremony held last week, the RightPath Integrated Project Team
Feynman path integral in area tensor Regge calculus and correspondence principle
The quantum measure in area tensor Regge calculus can be constructed in such the way that it reduces to the Feynman path integral describing canonical quantisation if the continuous limit along any of the coordinates is taken. This construction does not necessarily mean that Lorentzian (Euclidean) measure satisfies correspondence principle, that is, takes the form proportional to $e^{iS}$ ($e^{-S}$) where $S$ is the action. Requirement to fit this principle means some restriction on the action, or, in the context of representation of the Regge action in terms of independent rotation matrices (connections), restriction on such representation. We show that the representation based on separate treatment of the selfdual and antiselfdual rotations allows to modify the derivation and give sense to the conditionally convergent integrals to implement both the canonical quantisation and correspondence principles. If configurations are considered such that the measure is factorisable into the product of independent measures on the separate areas (thus far it was just the case in our analysis), the considered modification of the measure does not effect the vacuum expectation values.
V. M. Khatsymovsky
About a possible path towards the reverse engineering of quantum mechanics
An out of the box intellectual path exploring the foundations of quantum mechanics is discussed in some detail, in order to clarify why a possibly different way to look at the relevant fundamental questions can be identified and can support further research. Two key concepts arise. (1) Einstein critics to quantum mechanics could be taken seriously, but ironically, in order to really do so, one would have to take seriously also some of Lorentz critics to special relativity - both in a possibly more modern way; such interconnection possibly having been a blocking factor to openly discuss some of the cross implications of alternative views about quantum mechanics to date. (2) The probabilistic interpretation is a by-product of (a) quantum evolution equations, (b) conservation laws for the combination of measuring system and measured object and (c) persistency of calibration of the measuring system - as such there is no intellectual conflict whatsoever between hidden variables theories and probabilistic interpretation, provided we consider multicomponent hidden variable models and we allow for the existence of an underlying network. The implications of such concepts, in particular for the development of a microscopic quantisation program, are heuristically discussed or preliminarily explored.
Alberto Ottolenghi
A Pilot Plant: The Fastest Path to Commercial Fusion Energy
Considerable effort has been dedicated to determining the possible properties of a magneticconfinement fusion power plant, particularly in the U.S.1, Europe2 and Japan3. There has also been some effort to detail the development path to fusion energy, particularly in the U.S.4 Only limited attention has been given, in Japan5 and in China6, to the options for a specific device to form the bridge from the International Thermonuclear Experimental Reactor, ITER, to commercial fusion energy. Nor has much attention been paid, since 2003, to the synergies between magnetic and inertial fusion energy development. Here we consider, at a very high level, the possibility of a Qeng ? 1 Pilot Plant, with linear dimensions ~ 2/3 the linear dimensions of a commercial fusion power plant, as the needed bridge. As we examine the R&D needs for such a system we find significant synergies between the needs for the development of magnetic and inertial fusion energy.
Robert J. Goldston
A New In Situ Laser Long-Path Absorption Instrument for the Measurement of Tropospheric OH Radicals
The authors describe a high-resolution long-path differential optical absorption spectrometer developed for the measurement of tropospheric hydroxyl radical concentrations. The instrument uses an atmospheric absorption light path of up to 3000-m ...
Hans-Peter Dorn; Uwe Brandenburger; Theo Brauers; Martin Hausmann
Ensuring critical event sequences in high consequence computer based systems as inspired by path expressions
The goal of our work is to provide a high level of confidence that critical software driven event sequences are maintained in the face of hardware failures, malevolent attacks and harsh or unstable operating environments. This will be accomplished by providing dynamic fault management measures directly to the software developer and to their varied development environments. The methodology employed here is inspired by previous work in path expressions. This paper discusses the perceived problems, a brief overview of path expressions, the proposed methods, and a discussion of the differences between the proposed methods and traditional path expression usage and implementation.
Kidd, M.E.C.
Ensuring critical event sequences in high integrity software by applying path expressions
The goal of this work is to extend the use of existing path expression theory and methodologies to ensure that critical software event sequences are maintained even in the face of malevolent attacks and harsh or unstable operating environments. This will be accomplished by providing dynamic fault management measures directly to the software developer and to their varied development environments. This paper discusses the perceived problems, a brief overview of path expressions, and the author`s proposed extension areas. The authors discuss how the traditional path expression usage and implementation differs from the intended usage and implementation.
Antihydrogen production
Antihydrogen production in ATHENA is analyzed more carefully. The most important peculiarities of the different experimental situations are discussed. The protonium production via the first matter-antimatter chemical reaction is commented too.
Rizzini, Evandro Lodi; Venturelli, Luca; Zurlo, Nicola [Dipartimento di Chimica e Fisica per l'Ingegneria e per i Materiali, Universita di Brescia, 25133 Brescia (Italy); Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, 25133 Brescia (Italy)
RMOTC - Production
Production Production RMOTC Pumpjack in action During the process of the sale of NPR-3, RMOTC will focus on maximizing the value of the NPR-3 site and will continue with its Production Optimization Projects. NPR-3 includes 9,481 acres with more than 400 oil-producing wells. Current oil production is at approximately 240 barrels of oil per day. In July 2013, RMOTC began working on a number of Production Optimization Projects within the NPR-3 field, with the goal to optimize and improve flow and efficiency. Production Optimization Projects include repairing and replacing existing infrastructure with new infrastructure in order to optimize current wells and bring additional wells online. These Production Optimization Projects will continue throughout 2013 and are focused on improving current production and creating revenue for the America tax payer.
Tin Production
...descending order, Brazil, Indonesia, Malaysia, Thailand, Bolivia, and Australia. These countries supply more than 85% of total world production....
Development of Path 15 Software: Managing Power Transfer Constraints on a Major Transmission Interface: Path 15 of the California Transmission System with EPRI's DTCR Technology
In a previous research project, a dynamic thermal software model was developed and tested for the California Path 15 power transmission interface. A summary of that work is included in this report. The dynamic thermal model used real-time data from tension monitors on the critical Gates Panoche 230-kV lines. It also used continual updates of an automatic load and generation reduction scheme to calculate the post-contingency Path 15 power flow resulting from the loss of two 500-kV lines (double line outag...
Throughput-competitive advance reservation with bounded path dispersion
In response to the high throughput needs of grid and cloud computing applications, several production networks have recently started to support advance reservation of dedicated circuits. An important open problem within this context is to devise advance ... Keywords: approximation algorithms, high-speed networks, routing, scheduling
Reuven Cohen; Niloofar Fazlollahi; David Starobinski
The Path of Carbon in Photosynthesis, XV. Ribulose and Sedoheptulose
of these compounds i n photosynthesis was surmised before to n . The products of photosynthesis with cL402 by each p ls t e a d y - s t a t e photosynthesis i n t h e f r a c t i
Identification of MHF (massive hydraulic fracturing) fracture planes and flow paths: A correlation of well log data with patterns in locations of induced seismicity
One of the critical steps in developing a hot dry rock geothermal system is the creation of flow paths through the rock between two wellbores. To date, circulation systems have only been created by drilling one wellbore, hydraulically fracturing the well (which induces microearthquakes), locating the microearthquakes and then drilling a second wellbore through the zone of seismicity. A technique for analyzing the pattern of seismicity to determine where fracture planes are located in the seismically active region has recently been developed. This allows us to distinguish portions of the seismically active volume which are most likely to contain significant flow paths. We applied this technique to seismic data collected during a massive hydraulic fracturing (MHF) treatment and found that the fracture planes determined by the seismic method are confirmed by borehole temperature and caliper logs which indicate where permeable fractures and/or zones of weakness intersect the wellbores. A geometric model based on these planes and well log data has enhanced our understanding of the reservoir flow paths created by fracturing and is consistent with results obtained during production testing of the reservoir.
Dreesen, D.; Malzahn, M.; Fehler, M.; Dash, Z.
Benefits of path summaries in an XML query optimizer supporting multiple access methods
We compare several optimization strategies implemented in an XML query evaluation system. The strategies incorporate the use of path summaries into the query optimizer, and rely on heuristics that exploit data statistics.We present experimental results ...
Attila Barta; Mariano P. Consens; Alberto O. Mendelzon
Evaluation of LOWTRAN and MODTRAN for use over high zenith angle/long path length viewing.
??LOWTRAN and MODTRAN were evaluated in the 2.0-5.5 micron region against field collection data at high zenith angle/long path lengths to determine the degree of� (more)
Wright, Jonathan
Conceptual Soundness, Metric Development, Benchmarking, and Targeting for PATH Subprogram Evaluation
The objective of this study is to evaluate the conceptual soundness of the U.S. Department of Housing and Urban Development (HUD) Partnership for Advancing Technology in Housing (PATH) program's revised goals and establish and apply a framework to identify and recommend metrics that are the most useful for measuring PATH's progress. This report provides an evaluative review of PATH's revised goals, outlines a structured method for identifying and selecting metrics, proposes metrics and benchmarks for a sampling of individual PATH programs, and discusses other metrics that potentially could be developed that may add value to the evaluation process. The framework and individual program metrics can be used for ongoing management improvement efforts and to inform broader program-level metrics for government reporting requirements.
Mosey. G.; Doris, E.; Coggeshall, C.; Antes, M.; Ruch, J.; Mortensen, J.
State and parameter estimation using Monte Carlo evaluation of path integrals
Transferring information from observations of a dynamical system to estimate the fixed parameters and unobserved states of a system model can be formulated as the evaluation of a discrete time path integral in model state space. The observations serve as a guiding potential working with the dynamical rules of the model to direct system orbits in state space. The path integral representation permits direct numerical evaluation of the conditional mean path through the state space as well as conditional moments about this mean. Using a Monte Carlo method for selecting paths through state space we show how these moments can be evaluated and demonstrate in an interesting model system the explicit influence of the role of transfer of information from the observations. We address the question of how many observations are required to estimate the unobserved state variables, and we examine the assumptions of Gaussianity of the underlying conditional probability.
John C. Quinn; Henry D. I. Abarbanel
A hub-based labeling algorithm for shortest paths in road networks
Abraham et al. [SODA 2010] have recently presented a theoretical analysis of several practical point-to-point shortest path algorithms based on modeling road networks as graphs with low highway dimension. They also analyze a labeling algorithm. While ...
Ittai Abraham; Daniel Delling; Andrew V. Goldberg; Renato F. Werneck
The Role of Eddy Diffusivity Profiles on Stratocumulus Liquid Water Path Biases
Results from simulations of the stratocumulus-topped boundary layer with one-dimensional versions of general simulation models typically exhibit a wide range of spread in the modeled liquid water path (LWP). These discrepancies are often ...
Stephan R. de Roode
The Path of Carbon in Photosynthesis. XVI. Kinetic Relationships of the Intermediates in Steady State Photosynthesis
OF CARBON I N PHOTOSYNTHESIS, X U , KINETIC REIATIORSEIPS OFof steady. state photosynthesis in cUO2 provides informationThe path of carbon i n photosynthesis begins with a small
Benson, A.A.; Kawaguchi, S.; Hayes, P.; Calvin, M.
48 The Fath of Carbon i n Photosynthesis X. Carbon Dioxide658 THE PATH O CBRBQM I N PHOTOSYNTHESIS F x CA~ON DIOXIDEr e a c t i o n s of photosynthesis (phosphoglycera t e and
The Path of Carbon in Photosynthesis. XVII. Phosphorus Compounds as Intermediates in Photosynthesis
PATH OF CARBON IN PHOTOSYNTHESIS. XVII. PHOSPHORUS COMPOUNDSA5 I W I A T E S IN PHOTOSYNTHESIS* J o G o Buchanan, F o Jet e r s i x t y seconds photosynthesis by Chlorella, by fa^
Spatial Variability of Liquid Water Path in Marine Low Cloud: The Importance of Mesoscale Cellular Convection
Liquid water path (LWP) mesoscale spatial variability in marine low cloud over the eastern subtropical oceans is examined using two months of daytime retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Terra ...
Robert Wood; Dennis L. Hartmann
REACTION PATH HAMILTONIAN: TUNNELING EFFECTS IN THE UNIMOLECULAR ISOMERIZATION HNC u> HCN
path, and the energy and force constant matrix along it, aresecond-derivative matrix of the electronic energy along theis the matrix of second derivatives of the potential energy
Gray, S.K.
Path planning for UAVs under communication constraints using SPLAT! and MILP
;2 physical survey, environmental and meteorological monitoring, aerial photography, and search- and will in this paper address the problem of offline path planning for Unmanned Aerial Vehicles (UAVs). Our goal
Johansen, Tor Arne
A Triple-Path Denuder Instrument for Ambient Particulate Sampling and Analysis
A field instrument for sampling sulfate and nitrate particulate matter in a controlled chemical environment has been constructed and field tested. The instrument contains HNO3 and NH3 denuders and an ambient air path, all connected by manifold to ...
Briant L. Davis; L. Ronald Johnson; Bryan J. Johnson; Robert J. Hammer
Comparisons of SSM/I Liquid Water Paths with Aircraft Measurements
Comparisons have been made between in situ aircraft measurements of integrated liquid water and retrievals of integrated liquid water path (LWP) from algorithms using SSM/I brightness temperatures. The aircraft measurements were made over the ...
Stewart G. Cober; Andre Tremblay; George A. Isaac
Calibration Results for NOAA-11 AVHRR Channels 1 and 2 from Congruent Path Aircraft Observations
A method for using congruent atmospheric path aircraft-satellite observations to calibrate a satellite radiometer is presented. A calibrated spectroradiometer aboard a NASA ER-2 aircraft at an altitude of 19 km above White Sands, New Mexico, was ...
Peter Abel; B. Guenther; Reginald N. Galimore; John W. Cooper
Response of Storm Tracks to Bimodal Kuroshio Path States South of Japan
A large meridional shift of the sea surface temperature front occurs off the south coast of Japan associated with transitions between the large-meander and straight paths of the Kuroshio. Most extratropical cyclones generated in winter near the ...
Hirohiko Nakamura; Ayako Nishina; Shoshiro Minobe
Entrainment Rate, Cloud Fraction, and Liquid Water Path of PBL Stratocumulus Clouds
The large eddy simulation technique is used to search for key factors in determining the entrainment rate, cloud fraction, and liquid water path in the stratocumulus-topped boundary layer (STBL), with the goal of developing simple schemes of ...
Chin-Hoh Moeng
Method and apparatus for monitoring characteristics of a flow path having solid components flowing therethrough
A method and apparatus is provided for monitoring a flow path having plurality of different solid components flowing therethrough. For example, in the harvesting of a plant material, many factors surrounding the threshing, separating or cleaning of the plant material and may lead to the inadvertent inclusion of the component being selectively harvested with residual plant materials being discharged or otherwise processed. In accordance with the present invention the detection of the selectively harvested component within residual materials may include the monitoring of a flow path of such residual materials by, for example, directing an excitation signal toward of flow path of material and then detecting a signal initiated by the presence of the selectively harvested component responsive to the excitation signal. The detected signal may be used to determine the presence or absence of a selected plant component within the flow path of residual materials.
Hoskinson, Reed L. (Rigby, ID); Svoboda, John M. (Idaho Falls, ID); Bauer, William F. (Idaho Falls, ID); Elias, Gracy (Idaho Falls, ID)
A direct thin-film path towards low-cost large-area III-V ...
A direct thin-film path towards low-cost large-area III-V ... depending on the surface energy constraints of the nucleation ... scaling all times in ...
Quantitative Measurements of Path-Integrated Rain Rate by an Airborne Microwave Radiometer over the Ocean
Data on the airborne microwave radiometer, which is one of the sensors of the airborne microwave rain-scatterometer/radiometer (AMRS) system, are analyzed to infer path-integrated rain rate measured from topside. The equation of radiative ...
Masaharu Fujita; Ken'ichi Okamoto; Harunobu Masuko; Takeyuki Ojima; Nobuyoshi Fugono
A Comparison of Several Radiometric Methods of Deducing Path-Integrated Cloud Liquid Water
Using radiometer data collected during the Canadian Atlantic Storms Program, we have investigated five different methods of estimating the path-integrated, or columnar, cloud liquid water. The methods consist of one- and two-channel physical ...
Chong Wei; H. G. Leighton; R. R. Rogers
Next Generation Nuclear Plant Project Technology Development Roadmaps: The Technical Path Forward
This document presents the Next Generation Nuclear Plant (NGNP) Systems, Subsystems, and Components, establishes a baseline for the current technology readiness status, and provides a path forward to achieve increasing levels of technical maturity.
John Collins
Low Carbon Growth: a Potential Path for Mexico - GHG Abatement Cost Curve |
Growth: a Potential Path for Mexico - GHG Abatement Cost Curve Growth: a Potential Path for Mexico - GHG Abatement Cost Curve (Redirected from Mexico-McKinsey GHG Abatement Cost Curve) Jump to: navigation, search Name Low Carbon Growth: a Potential Path for Mexico - GHG Abatement Cost Curve Agency/Company /Organization Centro Mario Molina, McKinsey and Company Sector Energy, Land Focus Area Energy Efficiency, Renewable Energy Topics Resource assessment, Background analysis Website http://www.esmap.org/filez/pub Country Mexico Central America References ESMAP Low Carbon Growth Country Studies Program[1] References ↑ "ESMAP Low Carbon Growth Country Studies Program" Retrieved from "http://en.openei.org/w/index.php?title=Low_Carbon_Growth:_a_Potential_Path_for_Mexico_-_GHG_Abatement_Cost_Curve&oldid=3289
FAST 1.0 - Flow Path Analysis for Steam Turbines, Version 1.0
FAST Software Flow Analysis of Steam Turbines is a tool for performance engineers, designers and financial analysts. This tool is for industry use by utilities and manufacturers to evaluate thermal performance characteristics of existing and proposed turbine steam-path modifications/upgrades. Description The FAST software diagnoses performance problems and facilitates the economic evaluation of steam-path upgrade options. FAST software is used primarily by the thermal performance engineer in both fossil ...
Path placement optimization of manipulators based on energy consumption: application to the orthoglide 3-axis
This paper deals with the optimal path placement for a manipulator based on energy consumption. It proposes a methodology to determine the optimal location of a given test path within the workspace of a manipulator with minimal electric energy used by the actuators while taking into account the geometric, kinematic and dynamic constraints. The proposed methodology is applied to the Orthoglide~3-axis, a three-degree-of-freedom translational parallel kinematic machine (PKM), as an illustrative example.
Ur-Rehman, Raza; Chablat, Damien; Wenger, Philippe
7 7 1 ` September 2007 Short-Term Energy Outlook September 11, 2007 Release Highlights * Oil market fundamentals will likely remain tight reflecting continued production restraint by members of OPEC, rising consumption, moderate growth in non- OPEC supply, and falling inventories. Barring a slowdown in oil demand growth, continued high demand and low surplus capacity leave the market vulnerable to unexpected supply disruptions through 2008. * The price of West Texas Intermediate (WTI) crude oil dropped by about $2 per barrel in August from the record-high monthly average price of over $74 per barrel set in July. Tight world oil markets are expected to keep WTI prices around $71
An economist`s overview: Recent developments affecting future oil supply, prices
This article features a discussion of the production of crude oil in non-OPEC countries compared to OPEC countries and concludes that while OPEC has lost significant market share over a fifteen-year period, it has regained much of that loss over the past five years. Also included is refining netback data as of December 22th for the US Gulf Coast, US West Coast, Singapore, and Rotterdam. Prices and taxes (US$) for fuels in North and South America are also given.
Improving the Quality of Non-Holonomic Motion by Hybridizing C-PRM Paths
Sampling-based motion planners are an effective means for generating collision-free motion paths. However, the quality of these motion paths, with respect to different quality measures such as path length, clearance, smoothness or energy, is often notoriously low. This problem is accentuated in the case of non-holonomic sampling-based motion planning, in which the space of feasible motion trajectories is restricted. In this study, we combine the C-PRM algorithm by Song and Amato with our recently introduced path-hybridization approach, for creating high quality non-holonomic motion paths, with combinations of several different quality measures such as path length, smoothness or clearance, as well as the number of reverse car motions. Our implementation includes a variety of code optimizations that result in nearly real-time performance, and which we believe can be extended with further optimizations to a real-time tool for the planning of high-quality car-like motion.
Berger, Itamar; Zohar, Gal; Raveh, Barak; Halperin, Dan
Oil Market Simulation model: model documentation report (Task 13). Final report
This report documents the Oil Market Simulation (OMS) model as used by the Energy Information Administration (EIA) to provide forecasts of world oil prices. In addition, the OMS model is used to examine the market responses to changes in oil demand and supply. The current version of the model provides additional OMS simulation capabilities to its predecessor. It performs not only the price and production simulations as before, but also simulations that converge to a user-specified regional demand, supply, or import level. Free world countries are grouped into seven major oil demand regions and eight major oil supply regions. The OMS model consists of three parts: oil demand, non-OPEC oil supply, and OPEC pricing behavior. Regional oil demand in a given year is determined as a function of the average world oil price for the year, the regional level of economic activity for the year, and the oil demand in the previous year. Non-OPEC regional oil supply is specified as a function of world oil price and the regional oil supply in the previous period. OPEC pricing behavior is related to the OPEC capacity utilization rate; OPEC sets the oil price based on the percent utilization of its availabile production capacity and the world oil price in the previous time period. Besides the behavior rules of consumers, non-OPEC producers, and OPEC producers, the OMS model includes some regional demand and supply values that are determined exogenously. These user-determined demand and supply values include: (1) OPEC demand, (2) US Strategic Petroleum reserve fill rates, and (3) the net exports from Centrally Planned Economies. 19 refs., 7 figs., 10 tabs.
The Path of Carbon in Photosynthesis XIII. pH Effects in C{sup 14}O{sub 2} Fixation by Scenedesmus
The rates of photosynthesis and dark fixation of C{sup 14}O{sub 2} in Scenedesmus have been compared in dilute phosphate buffers of 1.6 to 11.4 pH; determination of C{sup 14} incorporation into the various products shows enhancement of uptake in an acid medium into sucrose, polysaccharides, alanine and serine, in an alkaline medium into malic asparctic acids. kinetic experiments at extreme pH values suggest that several paths are available for CO{sub 2} assimilation. A tentative correlation of the results with the pH optima of some enzymes and resultant effects upon concentrations of intermediates is presented.
Ouellet, C.; Benson, A. A.
Effects of Stratification and Bottom Topography on the Kuroshio Path Variation South of Japan. Part I: Dependence of the Path Selection on Velocity
Numerical experiments are executed using a two-layer inflow�outflow ocean model with simplified geometry to investigate the effects of stratification and bottom topography on the path variation of the Kuroshio south of Japan. In a flat-bottom ...
Shuhei Masuda; Kazunori Akitomo; Toshiyuki Awaji
Competitive Path Analysis Using Mathematical Programs with Equilibrium Constraints
This report extends a proposed method for detecting the potential to manipulate electricity markets in the presence of transmission scarcity. A screening method is used presently in different markets, which relies on cursory measures of transmission scarcity and competitive behavior. The extended method utilizes a Mathematical Program that maximizes profits for combinations of market participants in the presence of potentially scarce transmission resources. This new method incorporates production costs a...
Short-Term Energy Outlook - U.S. Energy Information Administration (EIA)
Global Crude Oil and Liquid Fuels Global Crude Oil and Liquid Fuels Global Crude Oil and Liquid Fuels Overview EIA expects production from countries outside of the Organization of the Petroleum Exporting Countries (OPEC) to grow year-over-year by a record high of 1.9 million bbl/d in 2014. OPEC crude oil production is forecast to decline by 0.5 million bbl/d in 2014, mostly as a result of some OPEC producers cutting back production to accommodate non-OPEC supply growth. The projected decline in production by some OPEC producers increases in surplus crude oil production capacity, which grows from an average of 2.2 million bbl/d in 2013 to 2.7 million bbl/d in 2014. The call on OPEC crude oil and global stocks (world consumption less non-OPEC production and OPEC non-crude oil production) falls from an average 30.4 million bbl/d in 2013
Silicon Production
Mar 12, 2012 ... An Investigation into the Electrochemical Production of Si by the FFC Cambridge Process: Emre Erg�l1; ?shak Karakaya2; Metehan Erdo?an2;�...
Topic: Productivity
... General Information: 301-975-5020 mfg@nist ... competitive in the global market, companies need to ... become more efficient in energy, production and ...
OIL PRODUCTION Enhanced Oil Recovery (EOR) is a term applied to methods used for recovering oil from a petroleum reservoir beyond that recoverable by primary and secondary methods....
Hydrogen Production Hydrogen Research in DOE Databases Energy Citations Database Information Bridge Science.gov WorldWideScience.org Increase your H2IQ More information Making...
A path integral formalism for non-equilibrium Hamiltonian statistical systems
In a near equilibrium statistical system the Onsager-Machlup path integral has a long and useful history. The situation far from equilibrium has remained less clear. In this contribution a new general formulation for path integrals is proposed based on mixtures of an appropriate family of quasi-equilibrium probability densities. The path integral introduced here uses a generalized Boltzmann principle to associate path likelihoods with a multiple of the information loss of a particular path with respect to Liouvillean evolution. The loss at a particular time is given by a Lagrangian function of the thermodynamical variables and their time derivatives. An important implication of the present formulation is that future thermodynamical evolution depends not just on the instantaneous thermodynamic variables but also on the particular mixture of quasi-equilibrium distributions present. This behaviour has been previously seen in direct numerical simulations of turbulent dynamical systems and is also a fundamental property of Wiener path integrals. The Lagrangian derived is formally identical to that used in quantum mechanics to describe a particle moving non-relativistically in a particular vector and scalar electromagnetic field and also within a manifold with a metric tensor equal to the Fisher information matrix of the exponential family manifold. It is shown that a simple transformation due to Roncadelli enables the derived Lagrangian to be recast into standard Onsager-Machlup form. This transformation thus enables a derivation of the thermodynamical trajectory which is the most likely path. Also revealed is a decomposition of the thermodynamical trajectory into a reversible and irreversible piece which takes the form of the non-equilibrium thermodynamical equations recently proposed by \\"Ottinger.
Richard Kleeman
Amplitudes for Spacetime Regions and the Quantum Zeno Effect: Pitfalls of Standard Path Integral Constructions
We argue that under very general conditions, there is a significant complication in amplitudes for spacetimes regions constructed from path integrals. This is the fact that the concrete implementation of the restrictions on paths over an interval of time corresponds, in an operator language, to sharp monitoring at every moment of time in the given time interval. Such processes suffer from the quantum Zeno effect -- the continual monitoring of a quantum system in a Hilbert subspace prevents its state from leaving that subspace. As a consequence, path integral amplitudes defined in this seemingly obvious way have physically and intuitively unreasonable properties and in particular, no sensible classical limit. In this paper we describe this frequently-occurring but little-appreciated phenomenon in some detail, showing clearly the connection with the quantum Zeno effect. We then show that it may be avoided by implementing the restriction on paths in the path integral in a "softer" way. The resulting amplitudes then involve a new coarse graining parameter, which may be taken to be a timescale $\\eps$, describing the softening of the restrictions on the paths. We argue that the complications arising from the Zeno effect are then negligible as long as $\\eps >> 1/ E$, where $E$ is the energy scale of the incoming state. Our criticisms of path integral constructions largely apply to approaches to quantum theory such as the decoherent histories approach or quantum measure theory, which do not specifically involve measurements. We address some criticisms of our approach by Sokolovksi, concerning the relevance of our results to measurement-based models.
J. J. Halliwell; J. M. Yearsley
Pilot-Plant - a shortened path to fusion power
Previous fusion reactor studies have focused on the characteristics of fusion reactors in a mature, commercial market, on full-scale "demonstration reactors" as commercial prototypes, and on other engineering development facilities. The projected large size and high capital cost of the development facilities present significant practical impediments to the development of fusion as a commercial power source. In other technologies, "pilot plants" have been constructed in advance of fullscale facilities. Such plants have had the characteristics of small size, low capital cost, and a limited set of objectives, while still having the integrated performance deemed necessary to gain experience with the operating characteristics of the new technology. A range of possible tokamak fusion pilot plants is considered, having as the primary objective providing requisite fusion power experience to an electric utility prior to construction of a full-scale demonstration reactor. Two approaches are explored, having the characteristics of either net electricity production or only the production of high-grade heat. The effects of choices such as mode of plasma heating and normal versus superconducting coils are also examined. Since tokamak scaling laws do not seem to permit simply "miniaturizing" the DEMO, fusion pilot plant designs incorporate only certain essential features of a power plant, while leaving the development of other features to complementary, specialized facilities.
Dean, S.O. [Fusion Power Associates; Peng, Yueng Kay Martin [ORNL
MARMOSET: The Path from LHC Data to the New Standard Model via On-Shell Effective Theories
We describe a coherent strategy and set of tools for reconstructing the fundamental theory of the TeV scale from LHC data. We show that On-Shell Effective Theories (OSETs) effectively characterize hadron collider data in terms of masses, production cross sections, and decay modes of candidate new particles. An OSET description of the data strongly constrains the underlying new physics, and sharply motivates the construction of its Lagrangian. Simulating OSETs allows efficient analysis of new-physics signals, especially when they arise from complicated production and decay topologies. To this end, we present MARMOSET, a Monte Carlo tool for simulating the OSET version of essentially any new-physics model. MARMOSET enables rapid testing of theoretical hypotheses suggested by both data and model-building intuition, which together chart a path to the underlying theory. We illustrate this process by working through a number of data challenges, where the most important features of TeV-scale physics are reconstructed with as little as 5 fb{sup -1} of simulated LHC signals.
Arkani-Hamed, Nima; Schuster, Philip; Toro, Natalia; /Harvard U., Phys. Dept.; Thaler, Jesse; /UC, Berkeley /LBL, Berkeley; Wang, Lian-Tao; /Princeton U.; Knuteson, Bruce; /MIT, LNS; Mrenna, Stephen; /Fermilab
A collaborative network middleware project by Lambda Station, TeraPaths, and Phoebus
The TeraPaths, Lambda Station, and Phoebus projects, funded by the US Department of Energy, have successfully developed network middleware services that establish on-demand and manage true end-to-end, Quality-of-Service (QoS) aware, virtual network paths across multiple administrative network domains, select network paths and gracefully reroute traffic over these dynamic paths, and streamline traffic between packet and circuit networks using transparent gateways. These services improve network QoS and performance for applications, playing a critical role in the effective use of emerging dynamic circuit network services. They provide interfaces to applications, such as dCache SRM, translate network service requests into network device configurations, and coordinate with each other to setup up end-to-end network paths. The End Site Control Plane Subsystem (ESCPS) builds upon the success of the three projects by combining their individual capabilities into the next generation of network middleware. ESCPS addresses challenges such as cross-domain control plane signalling and interoperability, authentication and authorization in a Grid environment, topology discovery, and dynamic status tracking. The new network middleware will take full advantage of the perfSONAR monitoring infrastructure and the Inter-Domain Control plane efforts and will be deployed and fully vetted in the Large Hadron Collider data movement environment.
Bobyshev, A.; /Fermilab; Bradley, S.; /Brookhaven; Crawford, M.; /Fermilab; DeMar, P.; /Fermilab; Katramatos, D.; /Brookhaven; Shroff, K.; /Brookhaven; Swany, M.; /Delaware U.; Yu, D.; /Brookhaven
Rationality and Traffic Attraction: Incentives for Honest Path Announcements in BGP
We study situations in which autonomous systems (ASes) may have incentives to send BGP announcements differing from the AS-level paths that packets traverse in the data plane. Prior work on this issue assumed that ASes seek only to obtain the best possible outgoing path for their traffic. In reality, other factors can influence a rational AS�s behavior. Here we consider a more natural model, in which an AS is also interested in attracting incoming traffic (e.g., because other ASes pay it to carry their traffic). We ask what combinations of BGP enhancements and restrictions on routing policies can ensure that ASes have no incentive to lie about their data-plane paths. We find that protocols like S-BGP alone are insufficient, but that S-BGP does suffice if coupled with additional (quite unrealistic) restrictions on routing policies. Our game-theoretic analysis illustrates the high cost of ensuring that the ASes honestly announce data-plane paths in their BGP path announcements.
Sharon Goldberg; Shai Halevi; Aaron D. Jaggard; Vijay Ramachandran; Rebecca N. Wright
Fuel Cell Technologies Publication and Product Library (EERE)
This 2-page fact sheet provides a brief introduction to hydrogen production technologies. Intended for a non-technical audience, it explains how different resources and processes can be used to produ
On the Path to Low Cost Renewable Fuels, an Important Breakthrough |
On the Path to Low Cost Renewable Fuels, an Important Breakthrough On the Path to Low Cost Renewable Fuels, an Important Breakthrough On the Path to Low Cost Renewable Fuels, an Important Breakthrough April 18, 2013 - 4:10pm Addthis NREL Scientist Bryon Donohoe looks at different views of ultra structures of pre-treated biomass materials in the Cellular Visualization room of the Biomass Surface Characterization Lab. | Photo by Dennis Schroeder, NREL. NREL Scientist Bryon Donohoe looks at different views of ultra structures of pre-treated biomass materials in the Cellular Visualization room of the Biomass Surface Characterization Lab. | Photo by Dennis Schroeder, NREL. A researcher examines a strain of the fermentation microorganism Zymomonas mobilis on a culture plate. NREL has genetically engineered and patented its own strains of Zymomonas mobilis to more effectively ferment the multiple sugars found in biomass as part of the cellulosic ethanol-to-renewable fuel conversion process. | Photo by Dennis Schroeder, NREL.
Determination of Ice Water Path Over the ARM SGP Using Combined Surface and Satellite Datasets
Determination of Ice Water Path Over the ARM SGP Using Determination of Ice Water Path Over the ARM SGP Using Combined Surface and Satellite Datasets J. Huang, M. M. Khaiyer, and P. W. Heck Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis and B. Lin Atmospheric Sciences National Aeronautics and Space Administration Langley Research Center Hampton, Virginia T.-F. Fan Science Applications International Corporation Hampton, Virginia Introduction Global information of cloud ice water path (IWP) is urgently needed for testing of global climate models (GCMs) and other applications. Accurate quantification of the IWP is essential for characterizing the hydrological and radiation budget. For example, the reflection of shortwave radiation by ice clouds reduces the solar energy reaching the earth's surface. Ice clouds can also trap the longwave radiation
Step 2. Choose a compliance path within the applicable energy code |
2. Choose a compliance path within the applicable energy code 2. Choose a compliance path within the applicable energy code For some designers, an ideal energy code would tell them exactly what they need to do for their building. For other designers, being told exactly what they need to do might be viewed as limiting their creativity. Energy codes attempt to cater to both types of designers by offering multiple compliance paths within the code. BECP's Commercial Buildings for Architects Resource Guide (Resource 1) states the issue as An energy code's format can significantly influence design, sometimes more than the actual requirements. A prescriptive code clearly states what applies, but may limit design freedom and foster the view that the building is composed of separate, non-related systems. A performance-based code
nmtopo-ctrlp.xsd - Types used for path specification and topology exchange
nmtopo-ctrlp.xsd - Types used for path nmtopo-ctrlp.xsd - Types used for path specification and topology exchange Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) OSCARS Case Study Documentation User Manual FAQ Design Specifications Functional Specifications Notifications Publications Authorization Policy Default Attributes Message Security Clients For Developers Interfaces Server api Client api WSDL files OSCARS.wsdl - OSCARS Service definition OSCARS.xsd - Types used in service messages OSCARS-Notify.wsdl - OSCARS Notify Broker service defintion nmtopo-ctrlp.xsd - Types used for path specification and topology exchange Links Hardware Requirements DOE Grids Service Transition Contact Us Technical Assistance:
Path integration in the field of a topological defect: the case of dispiration
The motion of a particle in the field of dispiration (due to a wedge disclination and a screw dislocation) is studied by path integration. By gauging $SO(2) \\otimes T(1)$, first, we derive the metric, curvature, and torsion of the medium of dispiration. Then we carry out explicitly path integration for the propagator of a particle moving in the non-Euclidean medium under the influence of a scalar potential and a vector potential. We obtain also the winding number representation of the propagator by taking the non-trivial topological structure of the medium into account. We extract the energy spectrum and the eigenfunctions from the propagator. Finally we make some remarks for special cases. Particularly, paying attention to the difference between the result of the path integration and the solution of Schr\\"odinger's equation in the case of disclination, we suggest that Schr\\"odinger equation may have to be modified by a curvature term.
Akira Inomata; Georg Junker; James Raynolds
Three path interference using nuclear magnetic resonance: a test of the consistency of Born's rule
The Born rule is at the foundation of quantum mechanics and transforms our classical way of understanding probabilities by predicting that interference occurs between pairs of independent paths of a single object. One consequence of the Born rule is that three way (or three paths) quantum interference does not exist. In order to test the consistency of the Born rule, we examine detection probabilities in three path intereference using an ensemble of spin-1/2 quantum registers in liquid state nuclear magnetic resonance (LSNMR). As a measure of the consistency, we evaluate the ratio of three way interference to two way interference. Our experiment bounded the ratio to the order of $10^{-3} \\pm 10^{-3}$, and hence it is consistent with Born's rule.
Daniel K. Park; Osama Moussa; Raymond Laflamme
THE COMPENSATION CONVENTION: PATH TO A GLOBAL REGIME FOR DEALING THE COMPENSATION CONVENTION: PATH TO A GLOBAL REGIME FOR DEALING WITH LEGAL LIABILITY AND COMPENSATION FOR NUCLEAR DAMAGE THE COMPENSATION CONVENTION: PATH TO A GLOBAL REGIME FOR DEALING WITH LEGAL LIABILITY AND COMPENSATION FOR NUCLEAR DAMAGE The adoption of the Convention on Supplementary Compensation for Nuclear Damage (Compensation Convention) opens a new chapter in international nuclear liability law. The Compensation Convention provides the world community with the opportunity to deal with legal liability and compensation for nuclear damage through a global regime that includes all countries that operate nuclear powerplants (nuclear power generating countries) and most countries that do not operate nuclear powerplants (nonnuclear power generating countries). Such a global regime can remove
Revitalized Board Lays Out New Path amid EM's Recent Underground Tank
Revitalized Board Lays Out New Path amid EM's Recent Underground Revitalized Board Lays Out New Path amid EM's Recent Underground Tank Waste Successes Revitalized Board Lays Out New Path amid EM's Recent Underground Tank Waste Successes August 20, 2012 - 12:00pm Addthis Cement trucks transport a specially formulated grout that is pumped into two underground waste tanks at the Savannah River Site as part of work to close the massive structures. Cement trucks transport a specially formulated grout that is pumped into two underground waste tanks at the Savannah River Site as part of work to close the massive structures. A view of the interior of the Integrated Waste Treatment Unit at the Idaho site. A view of the interior of the Integrated Waste Treatment Unit at the Idaho site. Cement trucks transport a specially formulated grout that is pumped into two underground waste tanks at the Savannah River Site as part of work to close the massive structures.
Atlanta Suburb Greases the Path to Savings with Biodiesel | Department of
Atlanta Suburb Greases the Path to Savings with Biodiesel Atlanta Suburb Greases the Path to Savings with Biodiesel Atlanta Suburb Greases the Path to Savings with Biodiesel December 7, 2011 - 3:33pm Addthis Downtown Smyrna, Georgia, a town that's poised to see big savings thanks to their investment in biodiesel. | Photo by Ken Cook Downtown Smyrna, Georgia, a town that's poised to see big savings thanks to their investment in biodiesel. | Photo by Ken Cook Chris Galm Marketing & Communications Specialist, Office of Energy Efficiency & Renewable Energy What does this project do? Reduces fuel consumption Saves the city money Extends the lifespan of city owned service vehicles "We sat down and actually met with several people out of the biodiesel industry and found out how amazingly simple it was for us to do this. To
Initiative Guides Hawaii to the Path of Energy Independence | Department of
Initiative Guides Hawaii to the Path of Energy Independence Initiative Guides Hawaii to the Path of Energy Independence Initiative Guides Hawaii to the Path of Energy Independence March 24, 2010 - 5:15pm Addthis The Hawaii Clean Energy Initiative's goal is to generate 70 percent of the state's power using clean energy such as wind. | Photo courtesy of the State of Hawaii. The Hawaii Clean Energy Initiative's goal is to generate 70 percent of the state's power using clean energy such as wind. | Photo courtesy of the State of Hawaii. With 90 percent of its energy coming from oil, Hawaii is the most oil-dependent state in the nation. The Hawaii Clean Energy Initiative is an ambitious plan to reverse that. A partnership between the state and the federal Department of Energy, the HCEI uses a combination of increased
Join the Discussion: Trailblazing a Path for Women in Clean Energy |
the Discussion: Trailblazing a Path for Women in Clean Energy the Discussion: Trailblazing a Path for Women in Clean Energy Join the Discussion: Trailblazing a Path for Women in Clean Energy June 27, 2012 - 10:25am Addthis Kim Saylors-Laster, Vice President of Walmart Energy and ambassador for the Clean Energy Education & Empowerment Initiative. | Photo courtesy of Walmart. Kim Saylors-Laster, Vice President of Walmart Energy and ambassador for the Clean Energy Education & Empowerment Initiative. | Photo courtesy of Walmart. Kim Saylors-Laster Kim Saylors-Laster Vice President of Walmart Energy More about Kim Saylors-Laster In addition to her role as VP of Walmart Energy, Kim is an ambassador for the Clean Energy Education & Empowerment initiative. Note: On June 27 at 1 p.m. EDT, the Energy Department is hosting a Women in
Tracking the Path of the Sun: Profiling an NREL Senior Scientist |
Tracking the Path of the Sun: Profiling an NREL Senior Scientist Tracking the Path of the Sun: Profiling an NREL Senior Scientist Tracking the Path of the Sun: Profiling an NREL Senior Scientist June 5, 2012 - 1:27pm Addthis Metrologist Ibrahim Reda (left) and software developer Afshin Andreas developed the Solar Position Algorithm now used by solar trackers, orchard growers, and movie-camera makers. The algorithm used in the SPA appears in the shadow. | Photo by Dennis Schroeder/NREL. Metrologist Ibrahim Reda (left) and software developer Afshin Andreas developed the Solar Position Algorithm now used by solar trackers, orchard growers, and movie-camera makers. The algorithm used in the SPA appears in the shadow. | Photo by Dennis Schroeder/NREL. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs
Paving the path for next-generation nuclear energy | Department of Energy
Paving the path for next-generation nuclear energy Paving the path for next-generation nuclear energy Paving the path for next-generation nuclear energy May 6, 2013 - 2:26pm Addthis Renewed energy and enhanced coordination are on the horizon for an international collaborative that is advancing new, safer nuclear energy systems. Renewed energy and enhanced coordination are on the horizon for an international collaborative that is advancing new, safer nuclear energy systems. Deputy Assistant Secretary Kelly Deputy Assistant Secretary Kelly Deputy Assistant Secretary for Nuclear Reactor Technologies Nuclear power reactors currently under construction worldwide boast modern safety and operational enhancements that were designed by the global nuclear energy industry and enhanced through research and development (R&D)
U.S.-Chinese Agreement Provides Path to Further Expansion of Nuclear Energy
-Chinese Agreement Provides Path to Further Expansion of -Chinese Agreement Provides Path to Further Expansion of Nuclear Energy in China U.S.-Chinese Agreement Provides Path to Further Expansion of Nuclear Energy in China December 16, 2006 - 9:46am Addthis BEIJING, CHINA - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman and Chinese Chairman of National Development and Reform Commission (NDRC) Ma Kai today signed a Memorandum of Understanding (MOU) that will pave the way for Westinghouse Electric Company to construct four civilian nuclear power plants in China. This agreement illustrates the United States government's support of the Chinese expansion and use of safe, emissions-free nuclear power and the related technology transfer. "This is an exciting day for the U.S. nuclear industry. This agreement is
EIS-0465: Pepco Holdings, Inc. Mid-Atlantic Power Path (MAPP) Project,
EIS-0465: Pepco Holdings, Inc. Mid-Atlantic Power Path (MAPP) EIS-0465: Pepco Holdings, Inc. Mid-Atlantic Power Path (MAPP) Project, Prince George's, Calvert, and Wicomico Counties, Maryland, and Sussex County, Delaware EIS-0465: Pepco Holdings, Inc. Mid-Atlantic Power Path (MAPP) Project, Prince George's, Calvert, and Wicomico Counties, Maryland, and Sussex County, Delaware Summary Pepco Holdings, Inc., cancelled its proposed Phase II of the Mid-Atlantic Power Pathway transmission line project and DOE cancelled preparation of an EIS on the potential environmental impacts of a proposed federal loan guarantee for the project. Public Comment Opportunities No public comment opportunities available at this time. Documents Available for Download March 4, 2011 EIS-0465: Notice of Intent to Prepare an Environmental Impact Statement
Insights into the mechanisms on chemical reactions: reaction paths for chemical reactions. [Li + HF; OH + H/sub 2/
We report reaction paths for two prototypical chemical reactions: Li + HF, an electron transfer reaction, and OH + H/sub 2/, an abstraction reaction. In the first reaction we consider the connection between the energetic terms in the reaction path Hamiltonian and the electronic changes which occur upon reaction. In the second reaction we consider the treatment of vibrational effects in chemical reactions in the reaction path formalism. 30 refs., 9 figs.
Dunning, T.H. Jr.; Rosen, E.; Eades, R.A.
Community of Practice: A Path to Strategic Learning
To explore the concept of community of practice, the research initially concentrates on a strategic business process in a research and applied engineering laboratory discovering essential communication tools and processes needed to cultivate a high functioning cross-disciplinary team engaged in proposal preparation. Qualitative research in the human ecology of the proposal process blends topic-oriented ethnography and grounded theory and includes an innovative addition to qualitative interviewing, called meta-inquiry. Meta-inquiry uses an initial interview protocol with a homogeneous pool of informants to enhance the researcher's sensitivity to the unique cultures involved in the proposal process before developing a formal interview protocol. In this study the preanalysis process uses data from editors, graphic artists, text processors, and production coordinators to assess, modify, enhance, and focus the formal interview protocol with scientists, engineers, and technical managers-the heterogeneous informants. Thus this human ecology-based interview protocol values homogeneous and heterogeneous informant data and acquires data from which concepts, categories, properties, and both substantive and formal theory emerges. The research discovers the five essential processes of owning, visioning, reviewing, producing, and contributing for strategic learning to occur in a proposal community of practice. The apprenticeship, developmental, and nurturing perspectives of adult learning provide the proposal community of practice with cohesion, interdependence, and caring, while core and boundary practices provide insight into the tacit and explicit dimensions of the proposal process. By making these dimensions explicit, the necessary competencies, absorptive capacity, and capabilities needed for strategic learning are discovered. Substantive theory emerges and provides insight into the ability of the proposal community of practice to evolve, flourish, and adapt to the strategic advantage of the laboratory. The substantive theory explores the dimensions of owning, visioning, reviewing, producing, and contributing and their interrelationship to community learning dynamics. Through dialogue, creative tension, and imagination, the proposal community of practice focuses on actionable goals linked by proactively participating in practice, creating possibilities, evaluating and enhancing potential, producing a valued product, and confirming strategic value. Lastly, a formal theory emerges linking competency-capacity-capability, cohesion, interdependence, and caring as essential attributes of strategic learning communities.
a a World Crude Oil Production Overview (Million Barrels per Day) World Production, 1973-2012 World Production, Monthly Selected Producers, 1973-2012 Selected Producers, Monthly 148 U.S. Energy Information Administration / Monthly Energy Review November 2013 United States 2011 2012 2013 2011 2012 2013 Non-OPEC J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S O N D 0 20 40 60 80 1975 1980 1985 1990 1995 2000 2005 2010 0 20 40 60 80 Non-OPEC World 1975 1980 1985 1990 1995 2000 2005 2010 0 3 6 9 12 OPEC J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S O N D 0 3 6 9 12 0 World United States Russia Persian Gulf Nations OPEC Saudi Arabia China Persian Gulf Nations Russia Iran China Saudi Arabia Iran Notes: * OPEC is the Organization of the Petroleum Exporting Countries. * The Persian Gulf Nations are Bahrain, Iran, Iraq, Kuwait, Qatar, Saudi Arabia, and the United Arab Emirates. Production from
The Path of Carbon in Photosynthesis. XX. The Steady State
The separation of the phenomenon of photosynthesis in green plants into a photochemical reaction and into the light-dependent reduction of carbon dioxide is discussed, The reduction of carbon dioxide and the fate of the assimilated carbon were investigated with the help of the tracer technique (exposure of the planks to the radioactive C{sup 14}O{sub 2}) and of paper chromatography. A reaction cycle is proposed in which phosphoglyceric acid is the first isolable assimilations product. Analyses of the algal extracts which had assimilated radioactive carbon dioxide in a stationary condition ('steady-state' photosynthesis) for a long time provided further information concerning the proposed cycle and permitted the approximate estimation, for a number of compounds of what fraction of each compound was taking part in the cycle. The earlier supposition that light influences the respiration cycle was confirmed. The possibility of the assistance of {alpha}-lipoic acid, or of a related substance, in this influence and in the photosynthesis cycle, is discussed.
Calvin, M.; Massini, Peter
Demonstration of an optical quantum controlled-NOT gate without path interference
We report the first experimental demonstration of an optical quantum controlled-NOT gate without any path interference, where the two interacting path interferometers of the original proposals (Phys. Rev. A {\\bf 66}, 024308 (2001), Phys. Rev. A {\\bf 65}, 012314 (2002)) have been replaced by three partially polarizing beam splitters with suitable polarization dependent transmittances and reflectances. The performance of the device is evaluated using a recently proposed method (Phys. Rev. Lett. {\\bf 94}, 160504 (2005)), by which the quantum process fidelity and the entanglement capability can be estimated from the 32 measurement results of two classical truth tables, significantly less than the 256 measurement results required for full quantum tomography.
Okamoto, R; Takeuchi, S; Sasaki, K; Okamoto, Ryo; Hofmann, Holger F.; Takeuchi, Shigeki; Sasaki, Keiji
Ryo Okamoto; Holger F. Hofmann; Shigeki Takeuchi; Keiji Sasaki
Self-consistent Green's functions calculation of the nucleon mean-free path
The extension of Green's functions techniques to the complex energy plane provides access to fully dressed quasi-particle properties from a microscopic perspective. Using self-consistent ladder self-energies, we find both spectra and lifetimes of such quasi-particles in nuclear matter. With a consistent choice of the group velocity, the nucleon mean-free path can be computed. Our results indicate that, for energies above 50 MeV at densities close to saturation, a nucleon has a mean-free path of 4 to 5 femtometers.
A. Rios; V. Soma
Sustained Availability of Technetium-99m - Possible Paths Forward
The availability of technetium-99m (99mTc) for single-photon imaging in diagnostic nuclear medicine is crucial, and current availability is based on the molybdenum-99 (99Mo)/99mTc generator fabricated from fission-based molybdenum (F 99Mo) produced by use of highly enriched uranium (HEU) targets. The use of HEU targets is being phased out because of risks related to nuclear material proliferation, so alternative strategies for production of both 99Mo and 99mTc are being evaluated intensely. There are evidently no plans for replacement of the limited number of reactors that have primarily provided most of the 99Mo. The uninterrupted, dependable availability of 99mTc is a crucial issue. For these reasons, new options being pursued include both reactor- and accelerator-based strategies to sustain the continued availability of 99mTc without the use of HEU. In this paper the scientific and economic issues for transitioning from HEU to non-HEU are also discussed. In addition, the comparative advantages, disadvantages, technical challenges, present status, future prospects, security concerns, economic viability, and regulatory obstacles are reviewed. In addition, the international actions in progress towards evolving possible alternative strategies to produce 99Mo and/or 99mTc are analyzed. The breadth of technologies and new strategies under development to provide 99Mo and 99mTc reflects both the broad interest in and the importance of the pivotal role of 99mTc in diagnostic nuclear medicine.
Pillai, M R A [Bhabha Atomic Research Centre, Mumbai, India; Dash, A [Bhabha Atomic Research Centre, Mumbai, India; Knapp Jr, Russ F [ORNL
. International . International Petroleum Figure 11.1a World Crude Oil Production Overview (Million Barrels per Day) World Production, 1973-2012 World Production, Monthly Selected Producers, 1973-2012 Selected Producers, Monthly 148 U.S. Energy Information Administration / Monthly Energy Review November 2013 United States 2011 2012 2013 2011 2012 2013 Non-OPEC J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S O N D 0 20 40 60 80 1975 1980 1985 1990 1995 2000 2005 2010 0 20 40 60 80 Non-OPEC World 1975 1980 1985 1990 1995 2000 2005 2010 0 3 6 9 12 OPEC J F MA M J J A S O N D J F MA M J J A S O N D J F MA M J J A S O N D 0 3 6 9 12 0 World United States Russia Persian Gulf Nations OPEC Saudi Arabia China Persian Gulf Nations Russia Iran China Saudi Arabia Iran Notes: * OPEC is the Organization of the Petroleum Exporting Countries. * The Persian Gulf Nations are Bahrain, Iran, Iraq, Kuwait,
The Technology Path to Deep Greenhouse Gas Emissions Cuts by 2050: The
Technology Path to Deep Greenhouse Gas Emissions Cuts by 2050: The Technology Path to Deep Greenhouse Gas Emissions Cuts by 2050: The Pivotal Role of Electricity Title The Technology Path to Deep Greenhouse Gas Emissions Cuts by 2050: The Pivotal Role of Electricity Publication Type Journal Article Refereed Designation Unknown Year of Publication 2012 Authors Williams, James H., Andrew DeBenedictis, Rebecca Ghanadan, Amber Mahone, Jack Moore, William R. Morrow, Snuller Price, and Margaret S. Torn Journal Science Volume 335 Start Page 53 Issue 6064 Pagination 53-59 Date Published 01/2012 Abstract Several states and countries have adopted targets for deep reductions in greenhouse gas emissions by 2050, but there has been little physically realistic modeling of the energy and economic transformations required. We analyzed the infrastructure and technology path required to meet California's goal of an 80% reduction below 1990 levels, using detailed modeling of infrastructure stocks, resource constraints, and electricity system operability. We found that technically feasible levels of energy efficiency and decarbonized energy supply alone are not sufficient; widespread electrification of transportation and other sectors is required. Decarbonized electricity would become the dominant form of energy supply, posing challenges and opportunities for economic growth and climate policy. This transformation demands technologies that are not yet commercialized, as well as coordination of investment, technology development, and infrastructure deployment.
Determination of robot drop location for military path planning using GIS application
Due to the uncertainties and higher risks of fatality in combat situations, Unmanned Ground Robots (UGR) may be proven to be a safer alternative for carrying out critical military missions, such as search and rescue, and reconnaissance operations. Among ... Keywords: military path planning, robot drop, unmanned ground robot
Min-Wook Kang; Manoj K. Jha; Gautham Karri
Equilibrium free energies from path sampling of nonequilibrium trajectories Sean X. Suna)
Equilibrium free energies from path sampling of nonequilibrium trajectories Sean X. Suna equilibrium free energy and nonequilibrium work is rewritten as an average of work with respect to a work nonequilibrium trajectories yields good estimates of the equilibrium free energy change. The procedure can
Sun, Sean
Quantum free-energy differences from nonequilibrium path integrals. I. Methods and numerical application
Quantum free-energy differences from nonequilibrium path integrals. I. Methods and numerical are combined to yield methods for computing free-energy differences in quantum systems using nonequilibrium,8 provide a means to compute the free-energy difference between two classical systems by use of a control
Schofield, Jeremy
Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble
Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble Armando Ticona which we reconstruct the free energy as a function of the magnetic field, temperature and system size. From the reconstructed free energy, we obtain the free energy barrier that is associated
Heermann, Dieter W.
Reliable Protein Folding on Complex Energy Landscapes: The Free Energy Reaction Path
Reliable Protein Folding on Complex Energy Landscapes: The Free Energy Reaction Path Gregg Lois be calculated from measurements of the free energy. We test these predictions against numerical simulations folding problem (24). Each protein conformation has a free energy that determines its probability
Gelfond, Michael
3D path planning for a biomass processing robot via motion simulation
Six motion strategies for a Cartesian 4-degrees-of-freedom (4-DOF) biomass processing robot were developed. Each of the corresponding trajectories consists of more than 1300 three-dimensional coordinate points. The motion strategies were evaluated due ... Keywords: Biomass, Cartesian, Greenhouse, Motion, Path, Planning, Robot, Simulation
N. Starcevic; C. Thullner; M. Bux; J. M�ller
Relationships between Water Vapor Path and Precipitation over the Tropical Oceans
The relationship between water vapor path W and surface precipitation rate P over tropical oceanic regions is analyzed using 4 yr of gridded daily SSM/I satellite microwave radiometer data. A tight monthly mean relationship P (mm day?1) = exp[...
Christopher S. Bretherton; Matthew E. Peters; Larissa E. Back
Eddy Covariance Measurements with Closed-Path Optical Humidity Sensors: A Feasible Concept?
Humidity spectra obtained with a closed-path optical hygrometer (LI-6262) show an apparent low-pass characteristic with a cutoff frequency varying between 0.01 and 0.1 Hz. Laboratory measurements revealed that contamination of the intake filter ...
Gerhard Peters; Bernd Fischer; Hans M�nster
Water Vapor Cross-Sensitivity of Open Path H2O/CO2 Sensors
When measuring the flux of CO2 with an open-path infrared absorption sensor, cross-sensitivity by water vapor is a source of concern. This is particularly true if the flux is small, such as over the sea. In this paper some possible mechanisms for ...
W. Kohsiek
Adding semantic annotations, navigation paths and tour guides to existing virtual environments
Nowadays, more Virtual Environments (VEs) are becoming available on the Web. This means that VEs are becoming accessible to a larger and more diverse audience. It also means that it is more likely that the use of these VEs (i.e. how to interact with ... Keywords: navigation paths, semantic annotations, tour guides, virtual reality
Frederic Kleinermann; Olga De Troyer; Christophe Creelle; Bram Pellens
Uncertainty in a Path-averaged Measurement of the Friction Velocity u*
Several electro-optical methods exist for measuring a path-averaged value of the inner scale of turbulence l0. By virtue of Monin�Obukhov similarity, in the atmospheric surface layer such l0 measurements are related to the friction velocity u* or ...
Edgar L. Andreas
Levy path integral approach to the solution of the fractional Schr�dinger equation with infinite square well
The solution to the fractional Schr\\"odinger equation with infinite square well is obtained in this paper, by use of the L\\'evy path integral approach. We obtain the even and odd parity wave functions of this problem, which are in accordance with those given by Laskin in [Chaos 10 (2000), 780--790].
Dong Jianping
Observations and design of public place and paths in a New England town
This is a plan - a hypothesis in which some ideas are developed for the building of a path and parks. Through the use of imagery texture, and materials a sense of the possible is evoked. This is also an exploration of ...
Compton, Ann, M. Arch. Massachusetts Institute of Technology
Shortest Path Stochastic Control for Hybrid Electric Vehicles , J.W. Grizzle2
1 of 28 Shortest Path Stochastic Control for Hybrid Electric Vehicles Ed Tate1 , J.W. Grizzle2 , Huei Peng3 Abstract: When a Hybrid Electric Vehicle (HEV) is certified for emissions and fuel economy this is the Hybrid Electric Vehicle (HEV) which consists of an electric powertrain coupled to a conventional
Grizzle, Jessy W.
Path Forward in PV Research: News from Robert J. Davis, Ph.D.
, business, tax issues, nor reliability If PV will hit $1/Wp as it appears it will, how long will thosePath Forward in PV Research: News from BAPVC Robert J. Davis, Ph.D. Co-Director, Wright Center Trends in PV What is affordable solar durability? Right: Picosun SunALE R-150 atomic layer deposition
Rollins, Andrew M.
Lyapunov and minimum-time path planning for drones Thibault Maillot
an unmanned aerial vehicle (UAV) to provide a target supervision and/or to provide convoy protection to ground the previous ones. Keywords: optimal control, path planning, aircraft navigation, unmanned aerial vehicles2013 #12;Moreover, the reader may refer to [27] for a survey on trajectory-planning algorithms focusing
White-tailed Deer Management Employee Survey Results and Path Forward
Population (80) Aerial Infrared Survey #12;5 Browse line caused by deer. Alteration of forest structure, dueWhite-tailed Deer Management Employee Survey Results and Path Forward Community Advisory Council at ~700 animals 1999 Initial discussions for population management 2001 Routine population surveys
Homes, Christopher C.
Path recovery of a disappearing target in a large network of cameras
A large network of cameras is necessary for covering large areas in surveillance applications. In such systems, gaps between the fields of view of different cameras are often unavoidable. We present a method for path recovery of a single target in such ...
Amir Lev-Tov; Yael Moses
GEOTHERM: A finite difference code for testing metamorphic P-T-t paths and tectonic models
Here, time-dependent solutions for the heat conduction equation are numerically evaluated in 1D space using a fully implicit algorithm based on the finite difference method, assuming temperature-dependence of thermal conductivity. The method is implemented ... Keywords: Finite differences methods, HT Metamorphism, Numerical modeling, P-T-t paths, Variscan
Leonardo Casini, Antonio Puccini, Stefano Cuccuru, Matteo Maino, Giacomo Oggiano
DLS: A dynamic local stitching mechanism to rectify transmitting path fragments in wireless sensor networks
In this paper, a pair of novel rectification algorithms (greedy negative pressure push algorithm and dynamic local stitching algorithm) is proposed to cooperatively repair broken transmitting paths in Wireless Sensor Networks. Our approach is to overcome ... Keywords: Data transmitting integrality, Dynamic local stitching algorithm, Fault tolerance, Wireless sensor networks
Ting Yang; Yugeng Sun; Javid Taheri; Albert Y. Zomaya
Path-coupled Signaling for Dynamic Metering Configuration in IP-based Networks
Path-coupled Signaling for Dynamic Metering Configuration in IP-based Networks Falko Dressler1,klenk,fessi,email@example.com 3 Siemens Communications, Berlin, Germany firstname.lastname@example.com Abstract Metering of the metering entities is based on centralized management systems. These systems usually have no knowledge about
Carle, Georg
A new approach is proposed for the determination of transition states and reaction paths for conformational transitions. The method makes use of adiabatic energy surfaces in the space of ��essential�� degrees of freedom of the molecule. The reduced dimensionality of this space
Themis Lazaridis; Douglas J. Tobias; Charles L. Brooks III; Michael E. Paulaitis
Computer correction of turbulent distortions of image of extended objects on near-Earth paths
An algorithm of computer-based correction of images of extended objects distorted by turbulent atmosphere is developed. The method of computer correction is used to correct a distorted image of an extended object on a horizontal 2300-m-long observation path. The angular size of the corrected-image region was 15'. (image processing)
Averin, A P; Morozov, Yu B; Pryanichkov, V S; Tyapin, V V [Federal State Unitary Enterprise 'I.S.Kos'minov State Scientific-Research Test Laser Centre of Russian Federation 'Raduga' (Russian Federation)
The Path to Fusion Energy for Concepts Currently at the Concept Exploration Level
needed? Advanced diagnostics Theory and simulation Support from base program, technology program BPX Non-nuclear phenomena. [FESAC Report on Alternate Concepts] · Innovation search for a better fusion reactor Upgrade path from CE-level MST · NCSX Built on theory and a strong international data base but no CE
Particle filtering with path sampling and an application to a bimodal ocean current model
This paper introduces a recursive particle filtering algorithm designed to filter high dimensional systems with complicated non-linear and non-Gaussian effects. The method incorporates a parallel marginalization (PMMC) step in conjunction with the hybrid ... Keywords: 65C05, 86A10, Hybrid Monte Carlo, Kuroshio, Parallel marginalization, Particle filter, Path sampling, Weather prediction
Jonathan Weare
Approximation of optimal moving paths of huge robot reclaimer with a 3d range finder
This paper proposes a simple method for approximating the optimal moving paths of a huge robot reclaimer located in the outdoor material stock yard with emphasis on safety, energy consumption, and transfer time. The reclaimer is equipped with a 3D range ...
Kwan-Hee Lee; Hyo-Jung Bae; Sung-Je Hong
Shortest Paths in Fuzzy Weighted Graphs Chris Cornelis,* Peter De Kesel,
and fuzzy logic--Theory and applications. Upper Saddle River, NJ: Prentice Hall; 1995. 15. Campos L, Muñoz A;12:213227. 5. Dubois D, Prade H. Fuzzy sets and systems: Theory and applications. New York: Aca- demic PressShortest Paths in Fuzzy Weighted Graphs Chris Cornelis,* Peter De Kesel, Etienne E. Kerre
Gent, Universiteit
Multigrid solution of a path integral formulation for the hydrogen atom
An efficient multigrid Monte-Carlo algorithm for calculating the ground state of the hydrogen atom using path integral is presented. The algorithm uses a unigrid approach. The action integral near r=0 is modified so that the correct values of observables are obtained. It is demonstrated that the critical slow down (CSD) is eliminated. Finally, the algorithm is compared to the staging algorithm.
Dov Bai
Rationality and traffic attraction: incentives for honest path announcements in bgp
We study situations in which autonomous systems (ASes) may have incentives to send BGP announcements differing from the AS-level paths that packets traverse in the data plane. Prior work on this issue assumed that ASes seek only to obtain the best possible ... Keywords: bgp, incentives
Healthful LipidsChapter 7 Short-Path Distillation for Lipid Processing
Healthful Lipids Chapter 7 Short-Path Distillation for Lipid Processing Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry AOCS Press 017D794DE078F80C846E2EEE3C255C82 AOCS Press Downloadabl
Dynamic provisioning strategies for energy efficient WDM networks with dedicated path protection
Energy consumption in optical backbone networks is increasing due to two main reasons: (i) the exponential growth of bandwidth demands, and (ii) the increase in availability requirements in order to guarantee protection of the ultra high capacity optical ... Keywords: Dedicated path protection, Energy-aware, Green networks, Power efficiency, Survivable WDM networks
Amornrat Jirattigalachote; Cicek Cavdar; Paolo Monti; Lena Wosinska; Anna Tzanakaki
Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes
Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes Wesam H. Al-Sabban, Luis F. Gonzalez and Ryan N. Smith Abstract-- Exploiting wind-energy is one possible way to extend the flight duration of an Unmanned Aerial Vehicle. Wind-energy can also be used
Smith, Ryan N.
Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision Processes
Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision wind-energy is one possible way to ex- tend flight duration for Unmanned Arial Vehicles. Wind-energy sources of wind energy available to exploit for this problem [5]: 1) Vertical air motion, such as thermal
Exploration and exploitation alliances in biotechnology: A system of new product development
We link the exploration�exploitation framework of organizational learning to a technology venture�s strategic alliances and argue that the causal relationship between the venture�s alliances and its new product development depends on the type of the alliance. In particular, we propose a product development path beginning with exploration alliances predicting products in development, which in turn predict exploitation alliances, and that concludes with exploitation alliances leading to products on the market. Moreover, we argue that this integrated product development path is moderated negatively by firm size. As a technology venture grows, it tends to withdraw from this product development path to discover, develop, and commercialize promising projects through vertical integration. We test our model on a sample of 325 biotechnology firms that entered 2565 alliances over a 25-year period. We find broad support for the hypothesized product development system and the moderating effect of firm size. Copyright � 2004 John Wiley & Sons, Ltd. Strategic alliances are a ubiquitous phenomenon, especially in high-technology industries (Hagedoorn, 1993). Parallel to the rise in interfirm cooperation, research on strategic alliances has burgeoned, with one strand focusing on the performance impact of alliances on the focal firm (Gulati, 1998). In this line of inquiry, several scholars have studied the relationship between a firm�s strategic alliances and its innovative performance or new product development (Shan, Walker, and
Frank T. Rothaermel; David L. Deeds
Hydrogen production
The production of hydrogen by reacting an ash containing material with water and at least one halogen selected from the group consisting of chlorine, bromine and iodine to form reaction products including carbon dioxide and a corresponding hydrogen halide is claimed. The hydrogen halide is decomposed to separately release the hydrogen and the halogen. The halogen is recovered for reaction with additional carbonaceous materials and water, and the hydrogen is recovered as a salable product. In a preferred embodiment the carbonaceous material, water and halogen are reacted at an elevated temperature. In accordance with another embodiment, a continuous method for the production of hydrogen is provided wherein the carbonaceous material, water and at least one selected halogen are reacted in one zone, and the hydrogen halide produced from the reaction is decomposed in a second zone, preferably by electrolytic decomposition, to release the hydrogen for recovery and the halogen for recycle to the first zone. There also is provided a method for recovering any halogen which reacts with or is retained in the ash constituents of the carbonaceous material.
Darnell, A.J.; Parkins, W.E.
Product Forms
Table 1 Wrought alloy products and tempers...or cold-finished Rivets Forgings and forging stock Foil Fin stock Drawn Extruded Rod Bar Wire 1050 . . . . . . . . . H112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1060 O, H12, H14, H16, H18 O, H12, H14, H112 O, H12, H14, H18, H113 O, H112 . . . .
A common path forward for the immersive visualization community
Immersive visualization makes use of the medium of virtual reality (VR) - it is a subset of virtual reality focused on the application of VR technologies to scientific and information visualization. As the name implies, there is a particular focus on the physically immersive aspect of VR that more fully engages the perceptual and kinesthetic capabilities of the scientist with the goal of producing greater insight. The immersive visualization community is uniquely positioned to address the analysis needs of the wide spectrum of domain scientists who are becoming increasingly overwhelmed by data. The outputs of computational science simulations and high-resolution sensors are creating a data deluge. Data is coming in faster than it can be analyzed, and there are countless opportunities for discovery that are missed as the data speeds by. By more fully utilizing the scientists visual and other sensory systems, and by offering a more natural user interface with which to interact with computer-generated representations, immersive visualization offers great promise in taming this data torrent. However, increasing the adoption of immersive visualization in scientific research communities can only happen by simultaneously lowering the engagement threshold while raising the measurable benefits of adoption. Scientists time spent immersed with their data will thus be rewarded with higher productivity, deeper insight, and improved creativity. Immersive visualization ties together technologies and methodologies from a variety of related but frequently disjoint areas, including hardware, software and human-computer interaction (HCI) disciplines. In many ways, hardware is a solved problem. There are well established technologies including large walk-in systems such as the CAVE{trademark} and head-based systems such as the Wide-5{trademark}. The advent of new consumer-level technologies now enable an entirely new generation of immersive displays, with smaller footprints and costs, widening the potential consumer base. While one would be hard-pressed to call software a solved problem, we now understand considerably more about best practices for designing and developing sustainable, scalable software systems, and we have useful software examples that illuminate the way to even better implementations. As with any research endeavour, HCI will always be exploring new topics in interface design, but we now have a sizable knowledge base of the strengths and weaknesses of the human perceptual systems and we know how to design effective interfaces for immersive systems. So, in a research landscape with a clear need for better visualization and analysis tools, a methodology in immersive visualization that has been shown to effectively address some of those needs, and vastly improved supporting technologies and knowledge of hardware, software, and HCI, why hasn't immersive visualization 'caught on' more with scientists? What can we do as a community of immersive visualization researchers and practitioners to facilitate greater adoption by scientific communities so as to make the transition from 'the promise of virtual reality' to 'the reality of virtual reality'.
Eric A. Wernert; William R. Sherman; Patrick O'Leary; Eric Whiting
Five-axis tool path generation for a flat-end tool based on iso-conic partitioning
Traditionally, for the flat-end tool, due to the intertwined dependence relationship between its axis and reference point, most 5-axis tool-path generation algorithms take a decoupled two-stage strategy: first, the so-called cutter contact (CC) curves ... Keywords: 5-axis NC machining, Kinematic performance, Local gouging, Tool orientation, Tool path planning
Nan Wang; Kai Tang
Analysis of Test Generation Complexity for Stuck-At and Path Delay Faults Based on ?k-Notation
In this paper, we discuss the relationship between the test generation complexity for path delay faults (PDFs) and that for stuck-at faults (SAFs) in combinational and sequential circuits using the recently introduced ?k-notation. On ... Keywords: easily testable, path delay faults, stuck-at faults, test generation complexity
Chia Yee Ooi; Thomas Clouqueur; Hideo Fujiwara
Using a Family of Dividing Surfaces Normal to the Minimum EnergyPath for Quantum Instanton Rate Constants
One of the outstanding issues in the quantum instanton (QI) theory (or any transition state-type theory) for thermal rate constants of chemical reactions is the choice of an appropriate ''dividing surface'' (DS) that separates reactants and products. (In the general version of the QI theory, there are actually two dividing surfaces involved.) This paper shows one simple and general way for choosing DS's for use in QI Theory, namely using the family of (hyper) planes normal to the minimum energy path (MEP) on the potential energy surface at various distances s along it. Here the reaction coordinate is not one of the dynamical coordinates of the system (which will in general be the Cartesian coordinates of the atoms), but rather simply a parameter which specifies the DS. It is also shown how this idea can be implemented for an N-atom system in 3d space in a way that preserves overall translational and rotational invariance. Numerical application to a simple system (the colliner H + H{sub 2} reaction) is presented to illustrate the procedure.
Li, Yimin; Miller, Wlliam H.
Production Practice
...Figure 1 shows the sequence of shapes in the production of a hollow handle for a table knife formed and coined in a 410 kg (900 lb) pneumatic drop hammer. The work metal was 0.81 mm (0.032 in.) thick copper alloy C75700 (nickel silver, 65�??12) annealed to a hardness of 35 to 45 HRB; blank size was 25 by...
Biofuel Production
Copyright � 2011 Hiroshi Sakuragi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Large amounts of fossil fuels are consumed every day in spite of increasing environmental problems. To preserve the environment and construct a sustainable society, the use of biofuels derived from different kinds of biomass is being practiced worldwide. Although bioethanol has been largely produced, it commonly requires food crops such as corn and sugar cane as substrates. To develop a sustainable energy supply, cellulosic biomass should be used for bioethanol production instead of grain biomass. For this purpose, cell surface engineering technology is a very promising method. In biobutanol and biodiesel production, engineered host fermentation has attracted much attention; however, this method has many limitations such as low productivity and low solvent tolerance of microorganisms. Despite these problems, biofuels such as bioethanol, biobutanol, and biodiesel are potential energy sources that can help establish a sustainable society. 1.
Hiroshi Sakuragi; Kouichi Kuroda; Mitsuyoshi Ueda
Short-Term Energy Outlook - U.S. Energy Information Administration ...
... propane, and other liquids including biofuels and natural gas liquids. Natural Gas. Exploration and reserves ... Supply Non-OPEC ... Non-Farm Employment
International Energy Outlook 2011 - Energy Information Administration
Liquid fuels Unconventional Total Reference High Oil Price Low Oil Price Non-OPEC conventional OPEC conventional (million barrels per day) U.S. Energy Information ...
The Upgrade Path from Legacy VME to VXS Dual Star Connectivity for Large Scale Data Acquisition and Trigger Systems
New instrumentation modules have been designed by Jefferson Lab and to take advantage of the higher performance and elegant backplane connectivity of the VITA 41 VXS standard. These new modules are required to meet the 200KHz trigger rates envisioned for the 12GeV experimental program. Upgrading legacy VME designs to the high speed gigabit serial extensions that VXS offers, comes with significant challenges, including electronic engineering design, plus firmware and software development issues. This paper will detail our system design approach including the critical system requirement stages, and explain the pipeline design techniques and selection criteria for the FPGA that require embedded Gigabit serial transceivers. The entire trigger system is synchronous and operates at 250MHz clock with synchronization signals, and the global trigger signals distributed to each front end readout crate via the second switch slot in the 21 slot, dual star VXS backplane. The readout of the buffered detector signals relies on 2eSST over the standard VME64x path at >200MB/s. We have achieved 20Gb/s transfer rate of trigger information within one VXS crate and will present results using production modules in a two crate test configuration with both VXS crates fully populated. The VXS trigger modules that reside in the front end crates, will be ready for production orders by the end of the 2011 fiscal year. VXS Global trigger modules are in the design stage now, and will be complete to meet the installation schedule for the 12GeV Physics program.
Cuevas, C; Barbosa, F J; Dong, H; Gu, W; Jastrzembski, E; Kaneta, S R; Moffitt, B; Nganga, N; Raydo, B J; Somov, A; Taylor, W M
First Generation ASCI Production Visualization Environments
The delivery of the first one tera-operations/sec computer has significantly impacted production data visualization, affecting data transfer, post processing, and rendering. Terascale computing has motivated a need to consider the entire data visualization system; improving a single algorithm is not sufficient. This paper presents a systems approach to decrease by a factor of four the time required to prepare large data sets for visualization.For daily production use, all stages in the processing pipeline from physics simulation code to pixels on a screen, must be balanced to yield good overall performance. Also, to complete the data path from screen to the analyst's eye, user display systems for individuals and teams are examined. Performance of the initial visualization system is compared with recent improvements. Lessons learned from the coordinated deployment of improved algorithms are also discussed, including the need for 64 bit addressing and a fully parallel data visualization pipeline.
Heermann, P.D.
Synthetic fuels: production and products
A brief primer on synthetic fuels is given. The paper includes brief descriptions of generic conversion technologies that can be used to convert various raw materials such as coal, oil shale, tar sands, peat, and biomass into synthetic fuels similar in character to petroleum-derived fuels currently in commerce. References for additional information on synthetic fuel processes and products are also given in the paper.
Singh, S.P.N.
A brief review on synthetic fuels is given. The paper includes brief descriptions of generic conversion technologies that can be used to convert various raw materials such as coal, oil shale, tar sands, peat and biomass into synthetic fuels similar in character to petroleum-derived fuels currently in commerce. Because the subject is vast and the space is limited, references for additional information on synthetic fuel processes and products are also given in the paper. 24 references.
Singh, S.P.
Multi-Path Transportation Futures Study - Lessons for the Transportation Energy Futures Study
Path Transportation Path Transportation Futures Study -- Lessons for the Transportation Energy Futures Study Steven Plotkin, Argonne National Laboratory LDV Workshop, July 26, 2010 What have we learned that might be useful to TEF? Do LOTS of sensitivity analysis - in this time frame, uncertainties about fuel price, technology costs, consumer behavior are very large, and effect of changed assumptions on outcomes can be huge Focus on marginal costs and performance -- Advanced technologies may look good against today's technologies, but that's really not what people will be judging them against.....the best "reference vehicle" is one customers will be seeing on showroom floors, in that year. Understand your model! -- Some of your "key results" may be coming
Trajectory Aspects of Electromagnetic Waves: A Prescription to Determine Photon Paths
Here, we provide a general prescription to put on the same footing both photon paths and massive-particle trajectories. Within this approach, a wave language formulation is introduced to describe the electromagnetic field, similar to the one used in quantum mechanics for massive particles. It is thus shown that the equation describing the energy flow lines has exactly the same form as the Bohmian equation of motion, this explaining the striking analogy between photon paths and massive-particle trajectories and, more importantly, the equivalence between diffraction and interference phenomena in both cases. This fact is illustrated in the particular case of interference, where we show that the final diffraction patterns as well as the processes leading to their emergence are analogous for both photons and massive particles.
Davidovic, M; Arsenovic, D; Bozic, M; Miret-Art�s, S
Progress towards understanding and predicting convection heat transfer in the turbine gas path
A new era is drawing in the ability to predict convection heat transfer in the turbine gas path. The authors feel that the technical community now has the capability to mount a major assault on this problem, which has eluded significant progress for a long time. They hope to make a case for this bold statement by reviewing the state of the art in three major heat transfer, configuration-specific experiments, whose data have provided the big picture and guided both the fundamental modeling research and the code development. Following that, they review progress and directions in the development of computer codes to predict turbine gas path heat transfer. Finally, they cite examples and make observations on the more recent efforts to do all this work in a simultaneous, interactive, and more synergistic manner. They conclude with an assessment of progress, suggestions for how to use the current state of the art, and recommendations for the future.
Simoneau, R.J.; Simon, F.F.
Viscoelasticity and primitive path analysis of entangled polymer liquids: From f-actin to polyethylene
We combine computer simulations and scaling arguments to develop a unified view of polymer entanglement based on the primitive path analysis (PPA) of the microscopic topological state. Our results agree with experimentally measured plateau moduli for three different polymer classes over a wide rangeof reduced polymer densities: (i) semi-dilute theta solutions of synthetic polymers, (ii) the corresponding dense melts above the glass transition or crystallization temperature, and (iii) solutions of semi-flexible (bio)polymers such as f-actin or suspensions of rodlike viruses. Together these systems cover the entire range from loosely to tightly entangled polymers. In particular, we argue that the primitive path analysis renormalizes a loosely to a tightly entangled system and provide a new explanation of the successful Lin-Noolandi packing conjecture for polymer melts.
Nariya Uchida; Gary S. Grest; Ralf Everaers
Modeling s-t Path Availability to Support Disaster Vulnerability Assessment of Network Infrastructure
The maintenance of system flow is critical for effective network operation. Any type of disruption to network facilities (arcs/nodes) potentially risks loss of service, leaving users without access to important resources. It is therefore an important goal of planners to assess infrastructures for vulnerabilities, identifying those vital nodes/arcs whose debilitation would compromise the most source-sink (s-t) interaction or system flow. Due to the budgetary limitations of disaster management agencies, protection/fortification and planning for the recovery of these vital infrastructure facilities is a logical and efficient proactive approach to reducing worst-case risk of service disruption. Given damage to a network, evaluating the potential for flow between s-t pairs requires assessing the availability of an operational s-t path. Recent models proposed for identifying infrastructure vital to system flow have relied on enumeration of all s-t paths to support this task. This paper proposes an alternative model...
Matisziw, Timothy C
BEopt: Software for Identifying Optimal Building Designs on the Path to Zero Net Energy; Preprint
A zero net energy (ZNE) building produces as much energy on-site as it uses on an annual basis--using a grid-tied, net-metered photovoltaic (PV) system and active solar. The optimal path to ZNE extends from a base case to the ZNE building through a series of energy-saving building designs with minimal energy-related owning and operating costs. BEopt is a computer program designed to find optimal building designs along the path to ZNE. A user selects from among predefined options in various categories to specify options to be considered in the optimization. Energy savings are calculated relative to a reference. The reference can be either a user-defined base-case building or a climate-specific Building America Benchmark building automatically generated by BEopt. The user can also review and modify detailed information on all available options and the Building America Benchmark in a linked options library spreadsheet.
Christensen, C.; Horowitz, S.; Givler, T.; Courtney, A.; Barker, G.
Low-Carbon & Green Buildings: The Path to a Sustainable Built Environment
Low-Carbon & Green Buildings: The Path to a Sustainable Built Environment Low-Carbon & Green Buildings: The Path to a Sustainable Built Environment in China Speaker(s): Baizhan Li Date: June 28, 2013 - 12:00pm - 1:00pm Location: 90-3122 Seminar Host/Point of Contact: Wei Feng Sammi Leung With rapid urbanization and economic growth, great changes have taken place in China, resulting in new challenges for energy-efficient, low-carbon buildings. On March 31, 2008, the China Green Building Council was established in Beijing. After that, green building standards, an evaluation index system, and policies were developed. In 2012, 389 projects with total floor space of 41 million m2 were labeled as green buildings, using China's green building rating system. Thermal comfort is one of the key factors in building energy use. In Chongqing, the absence of centralized
COMNET and zEPI, a Path Toward Standardizing How the Energy Performance of
COMNET and zEPI, a Path Toward Standardizing How the Energy Performance of COMNET and zEPI, a Path Toward Standardizing How the Energy Performance of Buildings is Determined Speaker(s): Charles Eley Date: December 6, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Tianzhen Hong This talk reviews the COMNET Modeling Guidelines and Procedures, a set of modeling rules intended to standardize the process for calculating federal tax credits, energy points under green building ratings, and Designed to Earn ENERGY STAR. The guidelines were developed in 2009 and went through two public reviews in 2010 before being published. See COMNET.org for more information. This talk will also address the zero energy performance index (zEPI) rating scale and how this scale is being used in the ASHRAE Building EQ and other programs to standardize the method for rating buildings.
New Approach to Assess Volatile Contamination in Vadose Zone Provides Path
Approach to Assess Volatile Contamination in Vadose Zone Approach to Assess Volatile Contamination in Vadose Zone Provides Path Forward for Site Closure New Approach to Assess Volatile Contamination in Vadose Zone Provides Path Forward for Site Closure April 24, 2012 - 12:00pm Addthis Conceptual site model for evaluating soil vapor extraction system performance to determine if the system should be optimized, terminated, or transitioned to another approach. Conceptual site model for evaluating soil vapor extraction system performance to determine if the system should be optimized, terminated, or transitioned to another approach. RICHLAND, Wash. and LOS ALAMOS, N.M. - Through the Deep Vadose Zone-Applied Field Research Initiative (DVZ-AFRI), scientists and engineers from Pacific Northwest National Laboratory, CH2M HILL Plateau Remediation
Validation of Satellite-Derived Liquid Water Paths Using ARM SGP Microwave Radiometers
Satellite-Derived Liquid Water Paths Using Satellite-Derived Liquid Water Paths Using ARM SGP Microwave Radiometers M. M. Khaiyer and J. Huang Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis, B. Lin, and W. L. Smith, Jr. National Aeronautics and Space Administration Langley Research Center Hampton, Virginia A. Fan Science Applications International Corporation Hampton, Virginia A. Rapp Colorado State University Fort Collins, Colorado Introduction Satellites are useful for monitoring climatological parameters over large domains. They are especially useful for measuring various cloud microphysical and radiative parameters where ground-based instruments are not available. The geostationary operational environmental satellite (GOES) has been used to retrieve cloud and radiative properties over an extended domain centered on the Atmospheric
Low Cost Open-Path Instrument for Monitoring Atmospheric Carbon Dioxide at Sequestration Sites
Low Cost open-path Instrument for Low Cost open-path Instrument for monItorIng atmospherIC Carbon DIoxIDe at sequestratIon sItes Background Growing concern over the effect on global climate of the buildup of greenhouse gases (GHG), particularly carbon dioxide (CO 2 ), in the atmosphere may lead to the curtailment of CO 2 emissions. One potential course of action by industry to reduce GHG emissions is the subsurface disposal of CO 2 . An important requirement of such disposal is verification that the injected gases remain in place and do not leak to the surface. Perhaps the most direct evidence of a successful sequestration project is the lack of a detectable CO 2 concentration above the background level in the air near the ground. Although measurement of CO 2 concentration can be performed, it is
Equations Governing Space-Time Variability of Liquid Water Path in Stratus Clouds
Equations Governing Space-Time Variability of Equations Governing Space-Time Variability of Liquid Water Path in Stratus Clouds K. Ivanova Pennsylvania State University University Park, Pennsylvania T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington M. Ausloos University of Liège B-4000 Liège, Belgium Abstract We present a method on how to derive an underlying mathematical (statistical or model free) equation for a liquid water path (LWP) signal directly from empirical data. The evolution of the probability density functions (PDFs) from small to large time scales is explicitly derived in the framework of Fokker-Planck equation. A drift and a diffusion term describing the deterministic and stochastic influences on the non-Gaussian fat tails of the liquid water probability distributions are obtained from
A wrong molecular turn leads down the path to type 2 diabetes | Argonne
A wrong molecular turn leads down the path to type 2 diabetes A wrong molecular turn leads down the path to type 2 diabetes By Jen Salazar * December 20, 2013 Tweet EmailPrint Computing resources at the U.S. Department of Energy's (DOE) Argonne National Laboratory have helped researchers better grasp how proteins misfold to create the tissue-damaging structures that lead to type 2 diabetes. The structures, called amyloid fibrils, are also implicated in neurodegenerative conditions such as Alzheimer's and Parkinson's, and in prion diseases like Creutzfeldt-Jacob and mad cow disease. The results pinpoint a critical intermediate step in the chemical pathway that leads to amyloid fibril formation. With the new culprit in view, future work could target a possible treatment, such as designing an inhibitor to interfere with the harmful pathway. The results also helped
Sugar Production
Sugar Production Sugar Production Name: Lauren Location: N/A Country: N/A Date: N/A Question: This is the experiment I did: our class took 6 sugars, placed them in test tubes and put three drops of yeast in each test tube. we then placed them in the incubator for one day and the next day looked at our results. the purpose was to find out with sugar would produce the most carbon dioxide. two of the sugars that we tested were LACTOSE and STARCH. my question is, why are lactose and starch the only sugars who didn't produce any, or very very little, carbon dioxide? and how is this process related to glycolysis? Replies: Bacteria and yeast are very efficient with their enzyme systems. They don't make enzymes they can't use. Yeast don't have the enzymes necessary to metabolize lactose. Starch is a complex sugar and yeast needs certain enzymes to break starch down into sugar. Every chemical reaction needs its own enzyme.
Hierarchical path planning for situated agents in informed virtual geographic environments
Multi-Agent Geo-Simulation (MAGS) is a modelling and simulation paradigm which involves a large number of autonomous situated agents of various extents evolving in, and interacting with, an explicit description of a geographic environment called a Virtual ... Keywords: autonomous situated agents (ASA), geographic information system (GIS), hierarchical path planning (HPP), informed virtual geographic environment (IVGE), multi-agent geo-simulation (MAGS), optimisation, situated reasoning (SR)
Mehdi Mekni
A novel upgrade path for transparent optical networks based on wavelength reuse
Passive optical networks (PONs) provide an economical method of delivering a wide variety of services to a small number of customers. Using optical fibre amplifiers, PONs can be aggregated to form transparent optical networks (TONs) serving a very large ... Keywords: WDM TON upgrade, dynamic allocation, effective bandwidth per user, high bandwidth services, optical fibre amplifiers, optical fibre networks, optical filters, passive optical networks, passive routing, telecommunication network routing, transparent optical networks, upgrade path, upstream direction, wavelength division multiplexing, wavelength reuse
V. Tandon; M. Wilby; F. Burton
Phase space path-integral formulation of the above-threshold ionization
Atoms and molecules submitted to a strong laser field can emit electrons of high energies in the above-threshold ionization (ATI) process. This process finds a highly intuitive and also quantitative explanation in terms of Feynman's path integral and the concept of quantum orbits [P. Salieres et al., Science 292, 902 (2001)]. However, the connection with the Feynman path-integral formalism is explained only by intuition and analogy and within the so-called strong-field approximation (SFA). Using the phase space path-integral formalism we have obtained an exact result for the momentum-space matrix element of the total time-evolution operator. Applying this result to the ATI we show that the SFA and the so-called improved SFA are, respectively, the zeroth- and the first-order terms of the expansion in powers of the laser-free effective interaction of the electron with the rest of the atom (molecule). We have also presented the second-order term of this expansion which is responsible for the ATI with double scattering of the ionized electron.
Milosevic, D. B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina) [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany); Academy of Sciences and Arts of Bosnia and Herzegovina, Bistrik 7, 71000 Sarajevo (Bosnia and Herzegowina)
General application of rapid 3-D digitizing and tool path generation for complex shapes
A system for automatic tool path generation was developed at Sandia National Laboratories for finish machining operations. The system consists of a commercially available 5-axis milling machine controlled by Sandia developed software. This system was used to remove overspray on cast turbine blades. A laser-based, structured-light sensor, mounted on a tool holder, is used to collect 3D data points around the surface of the turbine blade. Using the digitized model of the blade, a tool path is generated which will drive a 0.375 inch grinding pin around the tip of the blade. A fuzzified digital filter was developed to properly eliminate false sensor readings caused by burrs, holes and overspray. The digital filter was found to successfully generate the correct tool path for a blade with intentionally scanned holes and defects. The fuzzified filter improved the computation efficiency by a factor of 25. For application to general parts, an adaptive scanning algorithm was developed and presented with simulation and experimental results. A right pyramid and an ellipsoid were scanned successfully with the adaptive algorithm in simulation studies. In actual experiments, a nose cone and a turbine blade were successfully scanned. A complex shaped turbine blade was successfully scanned and finished machined using these algorithms.
Kwok, K.S.; Loucks, C.S.; Driessen, B.J.
Zero-flux planes, flux reversals and diffusion paths in ternary and quaternary diffusion
During isothermal multicomponent diffusion, interdiffusion fluxes of individual components can go to zero at zero-flux planes (ZFP) and exhibit flux reversals from one side to the other of such planes. Interdiffusion fluxes as well as the locations and compositions of ZFPs for components are determined directly from the concentration profiles of diffusion couples without the need for prior knowledge of interdiffusion coefficients. The development and identification of ZFPs is reviewed with the aid of single phase and two-phase diffusion couples investigated in the Cu-Ni-Zn system at 775/sup 0/C. ZFP locations in the diffusion zone nearly correspond to sections where the activity of a component is the same as its activity in either of the terminal alloys of a couple. Path slopes at ZFPs are uniquely dictated by the atomic mobility and thermodynamic data for the components. Discontinuous flux reversals for the components can also occur at interfaces in multiphase couples. Identification of ZFPs is also presented for diffusion in the Cu-Ni-Zn-Mn quaternary system. Analytical representation of diffusion paths for both ternary and quaternary diffusion couples is presented with the aid of characteristic path parameters.
Dayananda, M.A.
Scientists at ALS Find New Path to More Efficient Organic Solar Cells
Scientists at ALS Find New Path to Scientists at ALS Find New Path to More Efficient Organic Solar Cells Scientists at ALS Find New Path to More Efficient Organic Solar Cells Print Monday, 07 January 2013 00:00 Harald Ade, a physicist at North Carolina State University, led a study at the Advanced Light Source that revealed a second pathway to improved performances of polymer/organic solar cells. Whereas the first pathway demands crystals of ultrapure domains, the new pathway shows that impure domains if sufficiently small can also lead to improved photovoltaic performances. Also working on this project were Brian Collins, Zhe Li, John Tumbleston, Eliot Gann and Christopher McNeill. Read the News Release Molecular view of polymer/fullerene solar film showing an interface between acceptor and donor domains. Red dots are PC71BM molecules and blue lines represent PTB7 chains. Excitons are shown as yellow dots, purple dots are electrons and green dots represent holes
Using computerized tomography to determine ionospheric structures. Part 2, A method using curved paths to increase vertical resolution
A method is presented to unfold the two-dimensional vertical structure in electron density by using data on the total electron content for a series of paths through the ionosphere. The method uses a set of orthonormal basis functions to represent the vertical structure and takes advantage of curved paths and the eikonical equation to reduce the number of iterations required for a solution. Curved paths allow a more thorough probing of the ionosphere with a given set of transmitter and receiver positions. The approach can be directly extended to more complex geometries.
Vittitoe, C.N.
Production Services
Welcome Welcome The Production Services site contains links to each of the division's groups with descriptions of their services. Our goal is to update this website frequently to reflect ongoing service upgrades which, by planning and design, are added so that we can continue to meet your needs in a constantly changing work environment. Note: The Graphic Design Studio has been relocated to the second floor in the north wing of the Research Support Building 400. The telephone number remains the same, X7288. If you have any questions, please call supervisor, Rick Backofen, X6183. Photography Photography services are available at no charge to BNL and Guest users. See a list of the complete range of photography services available. Video Video services are available at no charge to BNL and Guest users. See a list of the complete range of video services available.
Toward a Standard Procedure for Validation of Satellite-Derived Cloud Liquid Water Path: A Study with SEVIRI Data
Differences between satellite-derived and ground-based values of cloud liquid water path (LWPsat and LWPgr, respectively) in validation studies are partly associated with the validation itself, in particular with scale differences and parallax. ...
W. Greuell; R. A. Roebeling
A Surface Wind Model�Based Method to Estimate Rain-Induced Radar Path Attenuation over Ocean
The rainfall retrieved using the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) depends on estimating the radar signal path-integrated attenuation using the surface reference technique (SRT). This technique assumes uniform ...
Li Li; Eastwood Im; Stephen L. Durden; Ziad S. Haddad
The Diurnal Path of the Sun: Ideology and Interregional Interaction in Ancient Northwest Mesoamerica and the American Southwest
The Diurnal Path of the Sun: Ideology and Interregional90). In the same story, the Sun Youth indicated where hesymbolic corn plant (i.e. , the Sun Youth standard) over the
Mathiowetz, Michael Dean
Retrieval of cloud properties using CALIPSO Imaging Infrared Radiometer. Part II: effective diameter and ice water path
The paper describes the version 3 Level 2 operational analysis of the Imaging Infrared Radiometer (IIR) data collected in the framework of the CALIPSO mission to retrieve cirrus cloud effective diameter and ice water path in synergy with the ...
Anne Garnier; Jacques Pelon; Philippe Dubuisson; Ping Yang; Micha�l Faivre; Olivier Chomette; Nicolas Pascal; Pat Lucker; Tim Murray
Cloud Liquid Water Path from Satellite-Based Passive Microwave Observations: A New Climatology over the Global Oceans
This work describes a new climatology of cloud liquid water path (LWP), termed the University of Wisconsin (UWisc) climatology, derived from 18 yr of satellite-based passive microwave observations over the global oceans. The climatology is based ...
Christopher W. O�Dell; Frank J. Wentz; Ralf Bennartz
Probability Density Functions of Liquid Water Path and Total Water Content of Marine Boundary Layer Clouds: Implications for Cloud Parameterization
Mathematical forms of probability density functions (PDFs) of liquid water path (LWP) and total water content for marine boundary layer clouds are investigated using the homogeneity, skewness, and kurtosis of PDFs of LWP obtained from observations ...
Hideaki Kawai; Jo�o Teixeira
Impact of the Vertical Variation of Cloud Droplet Size on the Estimation of Cloud Liquid Water Path and Rain Detection
Cloud droplet effective radius (DER) and liquid water path (LWP) are two key parameters for the quantitative assessment of cloud effects on the exchange of energy and water. Chang and Li presented an algorithm using multichannel measurements made ...
Ruiyue Chen; Fu-Lung Chang; Zhanqing Li; Ralph Ferraro; Fuzhong Weng
Validation of Cloud Liquid Water Path Retrievals from SEVIRI Using One Year of CloudNET Observations
The accuracy and precision are determined of cloud liquid water path (LWP) retrievals from the Spinning Enhanced Visible and Infrared Imager (SEVIRI) on board Meteosat-8 using 1 yr of LWP retrievals from microwave radiometer (MWR) measurements of ...
R. A. Roebeling; H. M. Deneke; A. J. Feijt
Network-Adaptive Video Communication Using Packet Path Diversity and Rate-Distortion Optimized Reference Picture Selection
In this paper, we present error-resilient Internet video transmission using path diversity and rate-distortion optimized reference picture selection. Under this scheme, the optimal packet dependency is determined adapting to network characteristics and ... Keywords: Path diversity, error-resilient video coding, low-latency, network-adaptive video coding, rate-distortion optimization, reference picture selection, source-channel coding, video streaming
Yi J. Liang; Eric Setton; Bernd Girod
Stone Tool Production
by the author. ) Stone Tool Production, Hikade, UEE 2010Short Citation: Hikade 2010, Stone Tool Production. UEE.Thomas, 2010, Stone Tool Production. In Willeke Wendrich (
Hikade, Thomas
FCT Hydrogen Production: Contacts
Contacts to someone by E-mail Share FCT Hydrogen Production: Contacts on Facebook Tweet about FCT Hydrogen Production: Contacts on Twitter Bookmark FCT Hydrogen Production:...
Characterization of the Los Alamos IPG YLR-6000 fiber laser using multiple optical paths and laser focusing optics
Fiber laser technology has been identified as the replacement power source for the existing Los Alamos TA-55 production laser welding system. An IPG YLR-6000 fiber laser was purchased, installed at SM-66 R3, and accepted in February 2008. No characterization of the laser and no welding was performed in the Feb 2008 to May 2009 interval. T. Lienert and J. Bernal (Ref. 1, July 2009) determined the existing 200 mm Rofin collimator and focus heads used with the Rofin diode pumped lasers were inadequate for use with the IPG laser due to clipping of the IPG laser beam. Further efforts in testing of the IPG laser with Optoskand fiber delivery optics and a Rofin 120 mm collimator proved problematic due to optical fiber damage. As a result, IPG design optical fibers were purchased as replacements for subsequent testing. Within the same interval, an IPG fiber-to-fiber (F2F) connector, custom built for LANL, (J. Milewski, S. Gravener, Ref.2) was demonstrated and accepted at IPG Oxford, MA in August 2009. An IPG service person was contracted to come to LANL to assist in the installation, training, troubleshooting and characterization of the multiple beam paths and help perform laser head optics characterization. The statement of work is provided below: In summary the laser system, optical fibers, F2F connector, Precitec head, and a modified Rofin type (w/120mm Optoskand collimator) IWindowIBoot system focus head (Figure 1) were shown to perform well at powers up to 6 kW CW. Power measurements, laser spot size measurements, and other characterization data and lessons learned are contained within this report. In addition, a number of issues were identified that will require future resolution.
Milewski, John O [Los Alamos National Laboratory; Bernal, John E [Los Alamos National Laboratory
An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery from the Complex Monterey Reservoir of South Ellwood Field, Offshore California
Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the ninth quarter of Budget Period II.
Steve Horner
Petroleum - Exploration & Production - EIA
Exploration and reserves, storage, imports and exports, production, prices, sales. Electricity. ... Oil Production Capacity Expansion Costs for the Persian Gulf.
Turbine Steam Path Damage: Theory and Practice, Volume 2: Damage Mechanisms
Supersedes Working Paper No. 10-27Portage and Path Dependence ?
We examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphological feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls at these points, while some falls provided water power during early industrialization. These factors attracted commerce and manufacturing. Although these original advantages have long since been made obsolete, we document the continuing importance of these portage sites over time. We interpret these results as path dependence and contrast explanations based on sunk costs interacting with decreasing versus increasing returns to scale.
Hoyt Bleakley; Jeffrey Lin; Hoyt Bleakley; Jeffrey Lin
Turbine Steam Path Damage: Theory and Practice, Volume 1: Turbine Fundamentals
National facility for advanced computational science: A sustainable path to scientific discovery
Lawrence Berkeley National Laboratory (Berkeley Lab) proposes to create a National Facility for Advanced Computational Science (NFACS) and to establish a new partnership between the American computer industry and a national consortium of laboratories, universities, and computing facilities. NFACS will provide leadership-class scientific computing capability to scientists and engineers nationwide, independent of their institutional affiliation or source of funding. This partnership will bring into existence a new class of computational capability in the United States that is optimal for science and will create a sustainable path towards petaflops performance.
Simon, Horst; Kramer, William; Saphir, William; Shalf, John; Bailey, David; Oliker, Leonid; Banda, Michael; McCurdy, C. William; Hules, John; Canning, Andrew; Day, Marc; Colella, Philip; Serafini, David; Wehner, Michael; Nugent, Peter
Electrical Signal Path Study and Component Assay for the MAJORANA N-Type Segmented Contact Detector
The purpose of the present electrical signal path study is to explore the various issues related to the deployment of highly-segmented low-background Ge detectors for the MAJORANA double-beta decay experiment. A significant challenge is to simultaneously satisfy competing requirements for the mechanical design, electrical readout performance, and radiopurity specifications from the MAJORANA project. Common to all rare search experiments, there is a very stringent limit on the acceptable radioactivity level of all the electronics components involved. Some of the findings are summarized in this report.
Amman, Mark; Bergevin, Marc; Chan, Yuen-Dat; Detwiler, Jason A.; Fujikawa, Brian .; Lesko, Kevin T.; Luke, Paul N.; Prior, Gersende; Poon, Alan W.; Smith, Alan R.; Vetter, Kai; Yaver, Harold; Zimmermann, Sergio
Exploiting the Path Propagation Time Differences in Multipath Transmission with FEC
We consider a transmission of a delay-sensitive data stream from a single source to a single destination. The reliability of this transmission may suffer from bursty packet losses - the predominant type of failures in today's Internet. An effective and well studied solution to this problem is to protect the data by a Forward Error Correction (FEC) code and send the FEC packets over multiple paths. In this paper we show that the performance of such a multipath FEC scheme can often be further improved. Our key observation is that the propagation times on the available paths often significantly differ, typically by 10-100ms. We propose to exploit these differences by appropriate packet scheduling that we call `Spread'. We evaluate our solution with a precise, analytical formulation and trace-driven simulations. Our studies show that Spread substantially outperforms the state-of-the-art solutions. It typically achieves two- to five-fold improvement (reduction) in the effective loss rate. Or conversely, keeping th...
Kurant, Maciej
Screened non-bonded interactions in native proteins manipulate optimal paths for robust residue communication
A protein structure is represented as a network of residues whereby edges are determined by intra-molecular contacts. We introduce inhomogeneity into these networks by assigning each edge a weight that is determined by amino-acid pair potentials. Two methodologies are utilized to calculate the average path lengths (APLs) between pairs: To minimize (i) the maximum weight in the strong APL, and (ii) the total weight in the weak APL. We systematically screen edges that have higher than a cutoff potential and calculate the shortest APLs in these reduced networks, while keeping chain connectivity. Therefore, perturbations introduced at a selected region of the residue network propagate to remote regions only along the non-screened edges that retain their ability to disseminate the perturbation. The shortest APLs computed from the reduced homogeneous networks with only the strongest few non-bonded pairs closely reproduce the strong APLs from the weighted networks. The rate of change in the APL in the reduced residue network as compared to its randomly connected counterpart remains constant until a lower bound. Upon further link removal, this property shows an abrupt increase, towards a random coil behavior. Under different perturbation scenarios, diverse optimal paths emerge for robust residue communication.
Ali Rana Atilgan; Deniz Turgut; Canan Atilgan
Exploiting symmetries for exponential error reduction in path integral Monte Carlo
The path integral of a quantum system with an exact symmetry can be written as a sum of functional integrals each giving the contribution from quantum states with definite symmetry properties. We propose a strategy to compute each of them, normalized to the one with vacuum quantum numbers, by a Monte Carlo procedure whose cost increases power-like with the time extent of the lattice. This is achieved thanks to a multi-level integration scheme, inspired by the transfer matrix formalism, which exploits the symmetry and the locality in time of the underlying statistical system. As a result the cost of computing the lowest energy level in a given channel, its multiplicity and its matrix elements is exponentially reduced with respect to the standard path-integral Monte Carlo. We test the strategy with a one-dimensional harmonic oscillator, by computing the ratio of the parity odd over the parity even functional integrals and the two-point correlation function. The cost of the simulations scales as expected. In par...
Della Morte, Michele
Creating science-driven computer architecture: A new path to scientific leadership
production runs on the NERSC IBM SP, Seaborg. An executive37 4.2 Expansion of a NERSC Production Computationalof the Cray X1 in 2004 at the NERSC Center to expose that
Supply/Demand Forecasts Begin to Show Stock Rebuilding
9 9 Notes: During 1999, we saw stock draws during the summer months, when we normally see stock builds, and very large stock draws during the winter of 1999/2000. Normally, crude oil production exceeds product demand in the spring and summer, and stocks build. These stocks are subsequently drawn down during the fourth and first quarters (dark blue areas). When the market is in balance, the stock builds equal the draws. During 2000, stocks have gradually built, but following the large stock draws of 1999, inventories needed to have been built more to get back to normal levels. As we look ahead using EIA's base case assumptions for OPEC production, non-OPEC production, and demand, we expect a more seasonal pattern for the next 3 quarters. But since we are beginning the year with
The parallel mean free path of solar energetic particles (SEPs), which is determined by physical properties of SEPs as well as those of solar wind, is a very important parameter in space physics to study the transport of charged energetic particles in the heliosphere, especially for space weather forecasting. In space weather practice, it is necessary to find a quick approach to obtain the parallel mean free path of SEPs for a solar event. In addition, the adiabatic focusing effect caused by a spatially varying mean magnetic field in the solar system is important to the transport processes of SEPs. Recently, Shalchi presented an analytical description of the parallel diffusion coefficient with adiabatic focusing. Based on Shalchi's results, in this paper we provide a direct analytical formula as a function of parameters concerning the physical properties of SEPs and solar wind to directly and quickly determine the parallel mean free path of SEPs with adiabatic focusing. Since all of the quantities in the analytical formula can be directly observed by spacecraft, this direct method would be a very useful tool in space weather research. As applications of the direct method, we investigate the inherent relations between the parallel mean free path and various parameters concerning physical properties of SEPs and solar wind. Comparisons of parallel mean free paths with and without adiabatic focusing are also presented.
He, H.-Q.; Wan, W., E-mail: email@example.com, E-mail: firstname.lastname@example.com [Beijing National Observatory of Space Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029 (China)
Two Paths to Transforming Markets through Public Sector Energy Efficiency: Bottom Up versus Top Down
Conservation Products (then CECP, now the China Standards Certification Center, or CSC) to survey selected public sector buildings
Van Wie McGrory, Laura; Coleman, Philip; Fridley, David; Harris, Jeffrey; Villasenor Franco, Edgar
Biological production of products from waste gases
A method and apparatus are designed for converting waste gases from industrial processes such as oil refining, and carbon black, coke, ammonia, and methanol production, into useful products. The method includes introducing the waste gases into a bioreactor where they are fermented to various products, such as organic acids, alcohols, hydrogen, single cell protein, and salts of organic acids by anaerobic bacteria within the bioreactor. These valuable end products are then recovered, separated and purified.
Gaddy, James L. (Fayetteville, AR)
Manhattan Project: Production Reactor (Pile) Design, Met Lab, 1942
Schematic of the X-10 Graphite Reactor, Oak Ridge PRODUCTION REACTOR (PILE) DESIGN Schematic of the X-10 Graphite Reactor, Oak Ridge PRODUCTION REACTOR (PILE) DESIGN (Met Lab, 1942) Events > The Plutonium Path to the Bomb, 1942-1944 Production Reactor (Pile) Design, 1942 DuPont and Hanford, 1942 CP-1 Goes Critical, December 2, 1942 Seaborg and Plutonium Chemistry, 1942-1944 Final Reactor Design and X-10, 1942-1943 Hanford Becomes Operational, 1943-1944 By 1942, scientists had established that some of the uranium exposed to radioactivity in a reactor (pile) would eventually decay into plutonium, which could then be separated by chemical means from the uranium. Important theoretical research on this was ongoing, but the work was scattered at various universities from coast to coast. In early 1942, Arthur Compton arranged for all pile research to be moved to the Met Lab at the University of Chicago.
Covered Product Category: Cool Roof Products
Energy.gov (U.S. Department of Energy (DOE))
FEMP provides acquisition guidance across a variety of product categories, including cool roof products, which are an ENERGY STAR�-qualified product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.
Mitigation Action Plan for Los Banos - Gates (Path 15) Transmission Project (DOE/EIS-0128) (12/3/03)
2 Date: December 3, 2003 1 2 Date: December 3, 2003 1 Western Area Power Administration Mitigation Action Plan for the Los Banos - Gates (Path 15) Transmission Project 1.0 INTRODUCTION 1.1 HISTORY AND BACKGROUND In May 2001, Secretary of Energy Spencer Abraham directed the Western Area Power Administration (Western) to take the first steps, including the preparation of environmental studies, toward developing the Los Banos - Gates Transmission Project, also known as the Path 15 Project. This directive was issued to carry out a recommendation in the May 2001 National Energy Policy. Western is a power marketing administration within the Department of Energy (DOE) whose role is to market and transmit electricity from multi-use water projects in the western United States, including California. The Path 15 Project, located in California's western
WEB RESOURCES: Magnesium Production
Feb 12, 2007 ... Mg Production(Australia).pdf 49.21 KB MgProduction_Australia.mht 81.47 KB Mg Production(Brazil Israel Congo Malaysia).pdf 50.48 KB
Self-Organized Hydrodynamics with congestion and path formation in crowds
A continuum model for self-organized dynamics is numerically investigated. The model describes systems of particles subject to alignment interaction and short-range repulsion. It consists of a non-conservative hyperbolic system for the density and velocity orientation. Short-range repulsion is included through a singular pressure which becomes infinite at the jamming density. The singular limit of infinite pressure stiffness leads to phase transitions from compressible to incompressible dynamics. The paper proposes an Asymptotic-Preserving scheme which takes care of the singular pressure while preventing the breakdown of the CFL stability condition near congestion. It relies on a relaxation approximation of the system and an elliptic formulation of the pressure equation. Numerical simulations of impinging clusters show the efficiency of the scheme to treat congestions. A two-fluid variant of the model provides a model of path formation in crowds.
Pierre Degond; Jiale Hua
Driving it home: choosing the right path for fueling North America's transportation future
North America faces an energy crossroads. With the world fast approaching the end of cheap, plentiful conventional oil, we must choose between developing ever-dirtier sources of fossil fuels -- at great cost to our health and environment -- or setting a course for a more sustainable energy future of clean, renewable fuels. This report explores the full scale of the damage done by attempts to extract oil from liquid coal, oil shale, and tar sands; examines the risks for investors of gambling on these dirty fuel sources; and lays out solutions for guiding us toward a cleaner fuel future. Table of contents: Executive Summary; Chapter 1: Transportation Fuel at a Crossroads; Chapter 2: Canadian Tar Sands: Scraping the Bottom of the Barrel in Endangered Forests; Chapter 3: Oil Shale Extraction: Drilling Through the American West; Chapter 4: Liquid Coal: A 'Clean Fuel' Mirage; Chapter 5: The Investment Landscape: Dirty Fuels Are Risky Business; Chapter 6: The Clean Path for Transportation and Conclusion.
Ann Bordetsky; Susan Casey-Lefkowitz; Deron Lovaas; Elizabeth Martin-Perera; Melanie Nakagawa; Bob Randall; Dan Woynillowicz
Coupled-cluster method: A lattice-path-based subsystem approximation scheme for quantum lattice models
An approximation hierarchy, called the lattice-path-based subsystem (LPSUBm) approximation scheme, is described for the coupled-cluster method (CCM). It is applicable to systems defined on a regular spatial lattice. We then apply it to two well-studied prototypical (spin-(1/2) Heisenberg antiferromagnetic) spin-lattice models, namely, the XXZ and the XY models on the square lattice in two dimensions. Results are obtained in each case for the ground-state energy, the ground-state sublattice magnetization, and the quantum critical point. They are all in good agreement with those from such alternative methods as spin-wave theory, series expansions, quantum Monte Carlo methods, and the CCM using the alternative lattice-animal-based subsystem (LSUBm) and the distance-based subsystem (DSUBm) schemes. Each of the three CCM schemes (LSUBm, DSUBm, and LPSUBm) for use with systems defined on a regular spatial lattice is shown to have its own advantages in particular applications.
Bishop, R. F.; Li, P. H. Y. [School of Physics and Astronomy, Schuster Building, University of Manchester, Manchester M13 9PL (United Kingdom)
Lectures on 2d Gauge Theories: Topological Aspects and Path Integral Techniques
These are lecture notes of lectures presented at the 1993 Trieste Summer School, dealing with two classes of two-dimensional field theories, (topological) Yang-Mills theory and the G/G gauged WZW model. The aim of these lectures is to exhibit and extract the topological information contained in these theories, and to present a technique (a Weyl integral formula for path integrals) which allows one to calculate directly their partition function and topological correlation functions on arbitrary closed surfaces. Topics dealt with are (among others): solution of Yang-Mills theory on arbitrary surfaces; calculation of intersection numbers of moduli spaces of flat connections; coupling of Yang-Mills theory to coadjoint orbits and intersection numbers of moduli spaces of parabolic bundles; derivation of the Verlinde formula from the G/G model; derivation of the shift k to k+h in the G/G model via the index of the twisted Dolbeault complex.
Matthias Blau; George Thompson
Multi-path transportation futures study : vehicle characterization and scenario analyses.
Projecting the future role of advanced drivetrains and fuels in the light vehicle market is inherently difficult, given the uncertainty (and likely volatility) of future oil prices, inadequate understanding of likely consumer response to new technologies, the relative infancy of several important new technologies with inevitable future changes in their performance and costs, and the importance - and uncertainty - of future government marketplace interventions (e.g., new regulatory standards or vehicle purchase incentives). This Multi-Path Transportation Futures (MP) Study has attempted to improve our understanding of this future role by examining several scenarios of vehicle costs, fuel prices, government subsidies, and other key factors. These are projections, not forecasts, in that they try to answer a series of 'what if' questions without assigning probabilities to most of the basic assumptions.
Plotkin, S. E.; Singh, M. K.; Energy Systems; TA Engineering; ORNL
A "Sponge" Path to Better Catalysts and Energy Materials | Advanced
Metal Model Mimics Metalloenzymes Metal Model Mimics Metalloenzymes New Physics in a Copper-Iridium Compound A Key Target for Diabetes Drugs Molten Metal Solidifies into a New Kind of Glass Organic Polymers Show Sunny Potential Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed A "Sponge" Path to Better Catalysts and Energy Materials September 6, 2013 Bookmark and Share This schematic depicts a new ORNL-developed material that can easily absorb or shed oxygen atoms. Scientists from the U.S. Department of Energy (DOE) Office of Science's Oak Ridge (ORNL) and Argonne National Laboratories, Northwestern University, and Hokkaido University (Japan) have developed a new oxygen
Presentation title: This can be up to 2 lines
April 12, 2011 April 12, 2011 2011 Summer Transportation Fuels Outlook Key factors driving the short-term outlook 2 2011 Summer Transportation Fuels Outlook * Disruption of crude oil and liquefied natural gas supply from Libya and uncertainty over security of supply from other countries in the Middle East and North Africa region * Strong growth in world consumption, driven by growth in emerging economies * Slow growth in non-OPEC production * Reliance on drawdown of inventories and increasing oil production from OPEC countries with a decline in available surplus production capacity World liquid fuels consumption is projected to increase by 1.5 million bbl/d in 2011 3 million barrels per day million barrels per day Source: Short-Term Energy Outlook, April 2011 30 35 40 45 50 55
Control of reactor coolant flow path during reactor decay heat removal
An improved reactor vessel auxiliary cooling system for a sodium cooled nuclear reactor is disclosed. The sodium cooled nuclear reactor is of the type having a reactor vessel liner separating the reactor hot pool on the upstream side of an intermediate heat exchanger and the reactor cold pool on the downstream side of the intermediate heat exchanger. The improvement includes a flow path across the reactor vessel liner flow gap which dissipates core heat across the reactor vessel and containment vessel responsive to a casualty including the loss of normal heat removal paths and associated shutdown of the main coolant liquid sodium pumps. In normal operation, the reactor vessel cold pool is inlet to the suction side of coolant liquid sodium pumps, these pumps being of the electromagnetic variety. The pumps discharge through the core into the reactor hot pool and then through an intermediate heat exchanger where the heat generated in the reactor core is discharged. Upon outlet from the heat exchanger, the sodium is returned to the reactor cold pool. The improvement includes placing a jet pump across the reactor vessel liner flow gap, pumping a small flow of liquid sodium from the lower pressure cold pool into the hot pool. The jet pump has a small high pressure driving stream diverted from the high pressure side of the reactor pumps. During normal operation, the jet pumps supplement the normal reactor pressure differential from the lower pressure cold pool to the hot pool. Upon the occurrence of a casualty involving loss of coolant pump pressure, and immediate cooling circuit is established by the back flow of sodium through the jet pumps from the reactor vessel hot pool to the reactor vessel cold pool. The cooling circuit includes flow into the reactor vessel liner flow gap immediate the reactor vessel wall and containment vessel where optimum and immediate discharge of residual reactor heat occurs.
Hunsbedt, Anstein N. (Los Gatos, CA)
Production Project Accounts
Production Project Accounts Production Project Accounts Overview Most NERSC login accounts are associated with specific individuals and must not be shared. Sometimes it is...
from Isotope Production Facility
Cancer-fighting treatment gets boost from Isotope Production Facility April 13, 2012 Isotope Production Facility produces cancer-fighting actinium - 2 - 2:32 Isotope cancer...
Century Model Product Available
Century Model Available The ORNL DAAC announces the availability of a new model product. The model product "CENTURY: Modeling Ecosystem Responses to Climate Change, Version 4...