text:
Office of Scientific and Technical Information
Square Footage Measurements and Comparisons in 2001 RECS
U.S. Energy Information Administration (EIA)
A discussion on measurements and comparsions of total square footage as presented in the 2001 Residential Energy Consumption Survey
Table 1a. Effective, Occupied, and Vacant Square Footage, 1992
U.S. Energy Information Administration (EIA) Indexed Site
a. Occupied and Vacant Sq Ft a. Occupied and Vacant Sq Ft Table 1a. Effective, Occupied, and Vacant Square Footage, 1992 Building Characteristics All Buildings (thousand) Total Floorspace (million square feet) Total Occupied Floorspace (million square feet) Total Vacant Floorspace (million square feet) Occupied Square Footage as a Percent of Total All Buildings 4,779 67,072 61,325 5,746 91 Building Floorspace (Square Feet) 1,001 to 5,000 2,678 7,321 6,662 659 90 5,001 to 10,000 966 7,140 6,544 596 91 10,001 to 25,000 641 10,285 9,432 853 91 25,001 to 50,000 274 9,872 8,963 909 90 50,001 to 100,000 114 7,957 7,297 659 91 100,001 to 200,000 70 9,619 8,966 652 93 200,001 to 500,000 25 7,788 7,201 586 92 Over 500,000 9 7,087 6,257 829 88 Principal Building Activity Education 309 8,815 8,221 593 93 Food Sales and Service 413 2,375 2,166
,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member"
1 Average Square Footage of Midwest Homes, by Housing Characteristics, 2009" 1 Average Square Footage of Midwest Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total Midwest",25.9,2272,1898,1372,912,762,551 "Midwest Divisions and States" "East North Central",17.9,2251,1869,1281,892,741,508 "Illinois",4.8,2186,1911,1451,860,752,571 "Michigan",3.8,1954,1559,962,729,582,359 "Wisconsin",2.3,2605,2091,1258,1105,887,534
3 Average Square Footage of West Homes, by Housing Characteristics, 2009" 3 Average Square Footage of West Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total West",24.8,1708,1374,800,628,506,294 "West Divisions and States" "Mountain",7.9,1928,1695,1105,723,635,415 "Mountain North",3.9,2107,1858,912,776,684,336 "Colorado",1.9,2082,1832,722,896,788,311 "Idaho, Montana, Utah, Wyoming",2,2130,1883,1093,691,610,354
2 Average Square Footage of South Homes, by Housing Characteristics, 2009" 2 Average Square Footage of South Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total South",42.1,1867,1637,1549,732,642,607 "South Divisions and States" "South Atlantic",22.2,1944,1687,1596,771,668,633 "Virginia",3,2227,1977,1802,855,759,692 "Georgia",3.5,2304,1983,1906,855,736,707 "Florida",7,1668,1432,1509,690,593,625 "DC, DE, MD, WV",3.4,2218,1831,1440,864,713,561
4 Average Square Footage of Single-Family Homes, by Housing Characteristics, 2009" 4 Average Square Footage of Single-Family Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total Single-Family",78.6,2422,2002,1522,880,727,553 "Census Region" "Northeast",12.7,2843,2150,1237,1009,763,439 "Midwest",19.2,2721,2249,1664,1019,842,624 "South",29.7,2232,1945,1843,828,722,684 "West",16.9,2100,1712,1009,725,591,348 "Urban and Rural3"
0 Average Square Footage of Northeast Homes, by Housing Characteristics, 2009" 0 Average Square Footage of Northeast Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total Northeast",20.8,2121,1663,921,836,656,363 "Northeast Divisions and States" "New England",5.5,2232,1680,625,903,680,253 "Massachusetts",2.5,2076,1556,676,850,637,277 "CT, ME, NH, RI, VT",3,2360,1781,583,946,714,234 "Mid-Atlantic",15.3,2080,1657,1028,813,647,402
6 Average Square Footage of Mobile Homes, by Housing Characteristics, 2009" 6 Average Square Footage of Mobile Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total Mobile Homes",6.9,1087,985,746,413,375,283 "Census Region" "Northeast",0.5,1030,968,711,524,492,362 "Midwest",1.1,1090,1069,595,400,392,218 "South",3.9,1128,1008,894,423,378,335 "West",1.4,995,867,466,369,322,173 "Urban and Rural3" "Urban",3.5,1002,919,684,396,364,271
9 Average Square Footage of U.S. Homes, by Housing Characteristics, 2009" 9 Average Square Footage of U.S. Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total",113.6,1971,1644,1230,766,639,478 "Census Region" "Northeast",20.8,2121,1663,921,836,656,363 "Midwest",25.9,2272,1898,1372,912,762,551 "South",42.1,1867,1637,1549,732,642,607 "West",24.8,1708,1374,800,628,506,294 "Urban and Rural3" "Urban",88.1,1857,1546,1148,728,607,450
5 Average Square Footage of Multi-Family Homes, by Housing Characteristics, 2009" 5 Average Square Footage of Multi-Family Homes, by Housing Characteristics, 2009" " Final" ,"Housing Units1","Average Square Footage Per Housing Unit",,,"Average Square Footage Per Household Member" "Housing Characteristics","Millions","Total2","Heated","Cooled","Total2","Heated","Cooled" "Total Multi-Family",28.1,930,807,535,453,393,261 "Census Region" "Northeast",7.6,991,897,408,471,426,194 "Midwest",5.6,957,857,518,521,466,282 "South",8.4,924,846,819,462,423,410 "West",6.5,843,606,329,374,269,146 "Urban and Rural3" "Urban",26.9,927,803,531,450,390,258
Y-12 Lease Summary Address* (Description) Square Footage Lease Term Expiration Date
NLE Websites -- All DOE Office Websites (Extended Search)
Y-12 Lease Summary Y-12 Lease Summary Address* (Description) Square Footage Lease Term Expiration Date Onsite Leases 602 Scarboro Rd (New Hope Center) 137,758 square feet Five years 05/04/2012 301 Bear Creek Rd (Jack Case Center) 411,837 square feet Five years 05/04/2012 Offsite Leases 200 Summit Place (Records Storage) 24,585 square feet Five years 5/31/2015 113C Union Valley Rd (Analytical Lab) 18,450 square feet Five years 10/24/2015 115 Union Valley Rd (Warehouse) 28,800 square feet Five years 07/20/2015 1099 Commerce Park Dr. (UPF Project) 64,960 square feet One year 09/30/2011 2410 Cherahala Boulevard (UPF Project) 32,058 square feet Six Months 12/31/2011 Knoxville, Tennessee * Oak Ridge, Tennessee unless noted otherwise.
Effective Occupied and Vacant Square Footage in Commercial Buildigs in 1992
Effective Occupied and Vacant Sq. Ft. Effective Occupied and Vacant Sq. Ft. Effective Occupied and Vacant Square Footage in Commercial Buildings in 1992 -- A Useful Benchmark of Commercial Floorspace Vacancy Rates -- Introduction One of the major approaches to analyzing energy use in end-use sectors is to relate energy use to measures of the extent of utilization of the sector, either in absolute terms or in terms relative to some maximum utilization level. For example, vehicle miles traveled is a measure of vehicle utilization in the transportation sector. The percent of maximum production capability at which an industry or an individual plant is operating is a measure of industrial capacity utilization in the industrial sector. For the commercial buildings sector, two concepts that measure how intensely a building is utilized seem to predominate: the number of hours the building is in operation and the amount of floorspace in the building that is occupied (or conversely, the amount that is vacant).
,"Housing Units1","Average Square Footage Per Housing Unit",...
the U.S. Department of Energy's Office of Energy and Efficiency and Renewable Energy (EERE). 5Rented includes households that occupy their primary housing unit without payment of...
Contractor's Storage Requirements Category Cubic Footage
Footage Tunnel of Heat 98.36 Solar fountain 215.16 Tool Boxes 70.1 Bikes 100.66 EV Car Charging Station 22.78 Fuel Cell Booth wCartridges (Part of Hydrogen Booth) 20.79 Fuel...
BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010...
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
Field Sites Power Marketing Administration Other Agencies You are here Home BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (3 of 4) BP Oil Spill Footage...
Field Sites Power Marketing Administration Other Agencies You are here Home BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (2 of 4) BP Oil Spill Footage...
BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010...
Field Sites Power Marketing Administration Other Agencies You are here Home BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010 (1 of 4) BP Oil Spill Footage...
BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850'...
BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (2 of 4) BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010 (1 of 4) Re-Building Greensburg The...
BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (3 of 4) BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (2 of 4) Re-Building Greensburg The...
BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (3 of 4) BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010 (1 of 4) Re-Building Greensburg The...
U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry ...
U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory and Developmental Wells (Thousand Feet)
Footage Drilled for Crude Oil and Natural Gas Wells
Gasoline and Diesel Fuel Update (EIA)
Footage Drilled for Crude Oil and Natural Gas Wells Footage Drilled for Crude Oil and Natural Gas Wells (Thousand Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2003 2004 2005 2006 2007 2008 View History Exploratory and Development Wells 176,867 203,997 240,969 285,398 308,210 331,740 1949-2008 Crude Oil 38,495 42,032 51,511 63,649 66,527 88,382 1949-2008 Natural Gas 115,833 138,503 164,353 193,595 212,753 212,079 1949-2008 Dry Holes 22,539 23,462 25,104 28,154 28,931 31,280 1949-2008 Exploratory Wells 17,785 22,382 25,955 29,630 36,534 35,585 1949-2008 Crude Oil 2,453 3,141 4,262 4,998 6,271 7,389 1949-2008 Natural Gas 6,569 9,998 12,347 14,945 19,982 17,066 1949-2008 Dry Holes
U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory...
Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...
U.S. Footage Drilled for Natural Gas Exploratory and Developmental...
and Developmental Wells (Thousand Feet) U.S. Footage Drilled for Natural Gas Exploratory and Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...
U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Developmental...
Developmental Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...
U.S. Footage Drilled for Crude Oil Exploratory and Developmental...
and Developmental Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil Exploratory and Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...
U.S. Footage Drilled for Crude Oil Exploratory Wells (Thousand...
Annual Energy Outlook 2012 (EIA)
Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's...
U.S. Footage Drilled for Natural Gas Exploratory Wells (Thousand...
Wells (Thousand Feet) U.S. Footage Drilled for Natural Gas Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's...
U.S. Footage Drilled for Natural Gas Developmental Wells (Thousand...
Developmental Wells (Thousand Feet) U.S. Footage Drilled for Natural Gas Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...
U.S. Footage Drilled for Dry Exploratory Wells (Thousand Feet...
Wells (Thousand Feet) U.S. Footage Drilled for Dry Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's 26,439...
U.S. Footage Drilled for Dry Exploratory and Developmental Wells...
and Developmental Wells (Thousand Feet) U.S. Footage Drilled for Dry Exploratory and Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...
U.S. Footage Drilled for Dry Developmental Wells (Thousand Feet...
Developmental Wells (Thousand Feet) U.S. Footage Drilled for Dry Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...
U.S. Footage Drilled for Crude Oil Developmental Wells (Thousand...
Developmental Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...
Field Sites Power Marketing Administration Other Agencies You are here Home BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850' - June 3 2010 (4 of 4) BP Oil...
Backstage Footage from the ARPA-E Summit | Department of Energy
Backstage Footage from the ARPA-E Summit Backstage Footage from the ARPA-E Summit Backstage Footage from the ARPA-E Summit March 2, 2011 - 6:00am Addthis John Schueler John Schueler Former New Media Specialist, Office of Public Affairs Yesterday morning, Secretary Chu and Governor Arnold Schwarzenegger decided to drop in on a gathering of graduate students at the ARPA-E Energy Innovation Summit. Hailing from 30 different campuses, these students have been strong advocates for the sciences at their respective schools and represent the next generation of energy leaders. See what Secretary Chu, Governor Schwarzenegger and ARPA-E Director Arun Majumdar had to say to these talented young scholars during their surprise visit: John Schueler is a New Media Specialist with the Office of Public Affairs. Addthis
Punnet square
Punnet square Punnet square Name: Pat T Seeman Location: N/A Country: N/A Date: N/A Question: I want to learn any thing and everything about the Punnett square. If any one can tell me about it I would be grateful. Replies: Pat: It would be helpful to know how old you are and what you already know about the Punnet square. In short, it is a mathematical way to predict the possible offspring from two particular parents, given that you know something about their genes. Could you ask something a little more specific, so I'll know exactly what to tell you? Ellen Mayo The Punnet square is a tool used by geneticists and students of genetics to predict the outcome of a cross (mating) between two individuals with a known genotype (set of genes). I suppose it was invented by a person named Punnet (or perhaps his graduate student). The Punnet square is an array of cells that represent all of the possible offspring of the cross. It is made by listing all of the possible gametes (sperm or eggs) of one parent at the head of each column and all of the possible gametes of the other parent at the left of each row of the array. To determine each possible offspring, combine the genotypes of each gamete contributing to a particular offspring (that is, write in a particular cell the genotype of the column and row heading. A simple example to illustrate:
Public Response to Residential Grid-Tied PV Systems in Colorado
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 15. Square Footage of Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Aging Name: davida Status: NA Age: NA Location: NA Country: NA Date: Around 1993 Question: What causes aging to occur? Replies: A deep and far-reaching question Aging is...
Do it yourself lighting power survey: lighting power audit for use with the Massachusetts type watts per square foot method of calculating a building's lighting power budget
SciTech Connect
Advantages of the self-audit approach to energy conservation are presented. These are that it is cheaper to do it yourself; the employees become part of the corporate conservation effect; and no one knows the building and its needs better than the occupant. Steps described in the lighting survey procedure are: (1) divide the building into categories; (2) determine the total square footage for each category; (3) assign a power allowance for each category; (4) multiply the total square footage for each category by the respective power allowances; (5) add the budget sub-totals for each category to determine total building budget; and (6) walk through the building room-by-room and calculate the connected lighting load fixture-by-fixture. Some worksheets are provided. (MCW)
Not Available
Sumsets being squares
E-Print Network (OSTI)
Alon, Angel, Benjamini and Lubetzky recently studied an old problem of Euler on sumsets for which all elements of A + B are integer squares. Improving their result we prove: 1. There exists a set A of 3 positive integers and a corresponding set B ? [0, N] with |B | ? (log N) 15/17, such that all elements of A + B are perfect squares. 2. There exists a set A of 3 integers and a corresponding set B ? [0, N] with |B | ? (log N) 9/11, such that all elements of the sets A, B and A + B are perfect squares. The proofs make use of suitably constructed elliptic curves of high rank. 1
Andrej Dujella; Christian Elsholtz
Greedy sums of distinct squares
Science Conference Proceedings (OSTI)
When a positive integer is expressed as a sum of squares, with each successive summand as large as possible, the summands decrease rapidly in size until the very end, where one may find two 4's, or several 1's. We find that the set of integers for which ... Keywords: Greedy algorithm, differential-difference equations
Hugh L. Montgomery; Ulrike M. A. Vorhauer
Buildings Energy Data Book: 2.2 Residential Sector Characteristics
Buildings Energy Data Book (EERE)
Square footage includes attic, garage, and basement square footage. EIA, 2005 Residential Energy Consumption Survey, Oct. 2008. Share of Average Home Size (1) Average Home Size...
Residential Buildings Historical Publications reports, data and...
square footage tends to be larger than the 1993 measured square footage. (2) Based on the household respondent's description rather than the Federal Government definition. (3) One...
Manufacturing Energy Consumption Survey (MECS) - Data - U.S ...
Energy Information Administration ... fuel switching capabilities, general energy-saving technologies, energy management activities, square footage, ...
Square-free Integers and Infinite products
We study few properties of square-free integers in certain equations. Using this property, we derive some infinite products in powers of square free numbers. Also, we present a method, to convert power series and trigonometric series to infinte products. Infinite products of few elementary trigonometric functions and factorials for large numbers are shown as examples.
Ramesh Kumar Muthumalai
Elmo bumpy square plasma confinement device
DOE Patents (OSTI)
The invention is an Elmo bumpy type plasma confinement device having a polygonal configuration of closed magnet field lines for improved plasma confinement. In the preferred embodiment, the device is of a square configuration which is referred to as an Elmo bumpy square (EBS). The EBS is formed by four linear magnetic mirror sections each comprising a plurality of axisymmetric assemblies connected in series and linked by 90/sup 0/ sections of a high magnetic field toroidal solenoid type field generating coils. These coils provide corner confinement with a minimum of radial dispersion of the confined plasma to minimize the detrimental effects of the toroidal curvature of the magnetic field. Each corner is formed by a plurality of circular or elliptical coils aligned about the corner radius to provide maximum continuity in the closing of the magnetic field lines about the square configuration confining the plasma within a vacuum vessel located within the various coils forming the square configuration confinement geometry.
Owen, L.W.
Square Butte Electric Coop | Open Energy Information
Open Energy Info (EERE)
Square Butte Electric Coop Square Butte Electric Coop Jump to: navigation, search Name Square Butte Electric Coop Place North Dakota Utility Id 17858 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates No Rates Available References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Square_Butte_Electric_Coop&oldid=411602"
Solar Energy Squared, LLC | Open Energy Information
Squared, LLC Squared, LLC Jump to: navigation, search Logo: Solar Energy Squared, LLC Name Solar Energy Squared, LLC Address 116 Ottenheimer Plaza, President Clinton Avenue Place Little Rock, Arkansas Zip 72201 Sector Solar Product Utility Scale Solar Year founded 2008 Number of employees 1-10 Phone number 501-244-9522 Website http://www.solarenergysquared. Coordinates 34.7472769°, -92.2643659° 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":34.7472769,"lon":-92.2643659,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Latin square three dimensional gage master
A gage master for coordinate measuring machines has an nxn array of objects distributed in the Z coordinate utilizing the concept of a Latin square experimental design. Using analysis of variance techniques, the invention may be used to identify sources of error in machine geometry and quantify machine accuracy.
Jones, Lynn L. (Lexena, KS)
State-space least mean square
In this paper, we present a generalized form of the well-known least mean square (LMS) filter. The proposed filter incorporates linear time-varying state-space model of the underlying environment and hence is termed as state-space LMS (SSLMS). This attribute ... Keywords: Adaptive filtering, SSLMS, State-space LMS, Tracking
Mohammad Bilal Malik; Muhammad Salman
Optical modelling of square solar concentrator
This paper deals with the optical design of a photovoltaic solar concentrator composed by two squared reflection mirrors. The optical configuration of the device, is based on the Cassegrain telescope and designed in order to maximize the fill factor ... Keywords: photovoltaic, ray tracing, solar cell
Maurizio Carlini; Carlo Cattani; Andrea O. M. Tucci
square miles | OpenEI Community
0 0 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142235190 Varnish cache server square miles Home Sfomail's picture Submitted by Sfomail(48) Member 25 June, 2013 - 12:10 Solar Land Use Data on OpenEI acres csp land use how much land land requirements pv land use solar land use square miles I'm happy to announce that a new report on Solar+Land+Use was just released by the National+Renewable+Energy+Laboratory. You can find a brief summary of the results at the Solar+Land+Use page on OpenEI.
Hybrid least squares multivariate spectral analysis methods
A set of hybrid least squares multivariate spectral analysis methods in which spectral shapes of components or effects not present in the original calibration step are added in a following estimation or calibration step to improve the accuracy of the estimation of the amount of the original components in the sampled mixture. The "hybrid" method herein means a combination of an initial classical least squares analysis calibration step with subsequent analysis by an inverse multivariate analysis method. A "spectral shape" herein means normally the spectral shape of a non-calibrated chemical component in the sample mixture but can also mean the spectral shapes of other sources of spectral variation, including temperature drift, shifts between spectrometers, spectrometer drift, etc. The "shape" can be continuous, discontinuous, or even discrete points illustrative of the particular effect.
Haaland, David M. (Albuquerque, NM)
Optical inverse-square displacement sensor
This invention comprises an optical displacement sensor that uses the inverse-square attenuation of light reflected from a diffused surface to calculate the distance from the sensor to the reflecting surface. Light emerging from an optical fiber or the like is directed onto the surface whose distance is to be measured. The intensity I of reflected light is angle dependent, but within a sufficiently small solid angle it falls off as the inverse square of the distance from the surface. At least a pair of optical detectors are mounted to detect the reflected light within the small solid angle, their ends being at different distances R and R + [Delta]R from the surface. The distance R can then be found in terms of the ratio of the intensity measurements and the separation length as given in an equation. 10 figs.
Howe, R.D.; Kychakoff, G.
This invention comprises an optical displacement sensor that uses the inverse-square attenuation of light reflected from a diffused surface to calculate the distance from the sensor to the reflecting surface. Light emerging from an optical fiber or the like is directed onto the surface whose distance is to be measured. The intensity I of reflected light is angle dependent, but within a sufficiently small solid angle it falls off as the inverse square of the distance from the surface. At least a pair of optical detectors are mounted to detect the reflected light within the small solid angle, their ends being at different distances R and R+.DELTA.R from the surface. The distance R can then be found in terms of the ratio of the intensity measurements and the separation length as ##EQU1##
Howe, Robert D. (San Mateo County, CA); Kychakoff, George (King County, WA)
The correlation of Abiyev's balanced squares with periodic law
For the first time, a perfect algorithm for writing the magic squares has been found by Abiyev. With the help of this algorithm we can write not only magic squares, but also magic cubes from any numbers of any orders. These squares have been called the ... Keywords: algorithm, correlation, magic square, periodic law, sequence, super-heavy
Asker Ali Abiyev
Square Butte HVDC modulation system field tests
The authors describe field tests conducted at the Square Butte dc system to validate transfer functions of the digital model for dc current and voltage modulation control design. The field tests and digital model results confirm a dominant interarea mode of oscillation of 0.8 hz. Field tests also established spurious responses in rectifier and inverter frequency measurements which appear to be attributable to transducer distortion.
Grund, C.E. (General Electric Co., Schenectady, NY (USA)); Hauer, J.F. (BPA, Portland, OR (US)); Crane, L.P.; Carlson, D.L. (Minnesota Power and Light Co., Duluth, MN (USA)); Wright, S.E. (EPRI, Palo Alto, CA (US))
Highlighting High Performance: Four Times Square
DOE Green Energy (OSTI)
4 Times Square is a 48-story environmentally responsible building in New York City. Developed by the Durst Organization, the building is the first project of its size to adopt standards for energy efficiency, indoor ecology, sustainable materials, and responsible construction, operations, and maintenance procedures. Designers used a whole-building approach--considering how the building's systems can work together most efficiently--and educated tenants on the benefits of the design.
Square-Free Rings And Their Automorphism Group
Finite-dimensional square-free algebras have been completely characterized by Anderson and D'Ambrosia as certain twisted semigroup algebras over a square-free semigroup S with coefficients in a field K. D'Ambrosia extended the definition of square-free to artinian rings with unity and showed every square-free ring has an associated division ring D and square-free semigroup S. We show a square-free ring can be characterized as a twisted semigroup ring over a square-free semigroup S with coefficients in a division ring D. Also, to each square-free ring there exists a short exact sequence connecting the outer automorphisms of a square-free ring to certain cohomology groups related to S and D.
Montgomery, Martin W
Solar design T-square | Open Energy Information
design T-square Jump to: navigation, search Name Solar Design T-Square AgencyCompany Organization Brian White Sector Energy Focus Area Renewable Energy, Solar Resource Type...
square-mile Black Warrior Basin
will inject CO will inject CO 2 into a coalbed methane (CBM) well in Tuscaloosa County, Alabama, to assess the capability of mature CBM reservoirs to receive and adsorb large volumes of CO 2 . Injection began at the test site on June 15; the site was selected because it is representative of the 23,000- square-mile Black Warrior Basin located in northwestern Alabama and northeastern Mississippi. It is estimated that this area has the potential to store in the range of 1.1 to 2.3 Gigatons of CO 2 , which is approximately the amount that Alabama's coal-fired power plants emit in two decades. The targeted coal seams range from 940 to 1,800 feet deep and are one to six feet thick. Approximately 240 tons of CO 2 will be injected over a 45- to 60-day period. More information
Finite temperature R-squared quantum gravity
The quantum gravity path integral's measure can be written as the product of classical backgrounds and quantum fluctuations about each background. After proving that fluctuations about the background do not diffuse in Hilbert space and obey the laws of many-body statistics, their probability distributions, entropy, and expected background are determined. This background obeys expectation-valued Einstein equations and features an entropy-based positive cosmological constant. From the fluctuation probability distributions, a finite temperature, R-squared, quantum gravity path integral is constructed whose action presents an interaction picture of quantum gravity that `moves with' the expected background in Hilbert space. Within this interaction picture of quantum fluctuations about an expected background, the fields required to describe quantum gravity have been transformed into `ordinary' quantum fields propagating on this `rigid' or `fixed' expected background. Back-reaction has been fully accounted for, and the quantum formulation is manifestly background independent.
C. D. Burton
Pioneer Valley Photovoltaics Cooperative aka PV Squared | Open Energy
Photovoltaics Cooperative aka PV Squared Photovoltaics Cooperative aka PV Squared Jump to: navigation, search Name Pioneer Valley Photovoltaics Cooperative (aka PV Squared) Place New Britain, Connecticut Zip 6051 Sector Solar Product Solar PV system installer. References Pioneer Valley Photovoltaics Cooperative (aka PV Squared)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Pioneer Valley Photovoltaics Cooperative (aka PV Squared) is a company located in New Britain, Connecticut . References ↑ "Pioneer Valley Photovoltaics Cooperative (aka PV Squared)" Retrieved from "http://en.openei.org/w/index.php?title=Pioneer_Valley_Photovoltaics_Cooperative_aka_PV_Squared&oldid=349764"
Residential Energy Consumption Survey (RECS) - Data - U.S. Energy ...
Water Heating; Preliminary Release Date: ... Total Square Footage of Single-Family Homes (HC10.6) XLS: Total Square Footage of Multi-Family Homes (HC10.7) XLS:
Federal Energy Management Program: Guidance for Developing Baseline...
is defined as annual potable water use divided by total gross square footage of facility space (galft2). The facility gross square footage is the same value used for energy...
Lumenhaus Shows Off Solar in Times Square | Department of Energy
Lumenhaus Shows Off Solar in Times Square Lumenhaus Shows Off Solar in Times Square Lumenhaus Shows Off Solar in Times Square February 1, 2010 - 10:00am Addthis Photo by Kelly Shimoda Photo by Kelly Shimoda Joshua DeLung How can I participate? The next Solar Decathlon will be held Sept. 23-Oct. 2, 2011, at the National Mall's West Potomac Park in Washington, D.C. Virginia Tech's Lumenhaus - a net-zero energy, solar-powered, 650-square-foot home - made a stop in New York on its tour, right in the middle of Times Square. The house was previously featured at the U.S. Department of Energy's Solar Decathlon in October, and the team will head to Madrid in June for Solar Decathlon Europe as the only U.S. team to participate in both competitions. While in Times Square, the team and the house were featured on "Good
Models and Algorithms for Distributionally Robust Least Squares ...
Feb 12, 2011 ... The ordinary least squares (OLS) problem [7] is a fundamental problem ...... and A. Shapiro, eds., Stochastic Programming, Handbooks in Op-.
2013 NETL CO2 Capture Technology Meeting Sheraton Station Square...
CO2 Capture Technology Meeting Sheraton Station Square, Pittsburgh, PA July 8 - 11, 2013 ION Novel Solvent System for CO 2 Capture FE0005799 Nathan Brown ION Engineering...
Derivation of the coefficient squared probability law in quantum mechanics
If one assumes there is probability of perception in quantum mechanics, then unitarity dictates that it must have the coefficient squared form, in agreement with experiment.
Casey Blood
Efficient approximate Regularized Least Squares by Toeplitz matrix
Machine Learning based on the Regularized Least Squares (RLS) model requires one to solve a system of linear equations. Direct-solution methods exhibit predictable complexity and storage, but often prove impractical for large-scale problems; iterative ... Keywords: Digital signal processor, Large-scale learning, Levinson-Trench-Zohar algorithm, Regularized Least Squares, Resources limited device, Toeplitz matrix
Sergio Decherchi; Paolo Gastaldo; Rodolfo Zunino
Table 2a. Electricity Consumption and Electricity Intensities, per Square
assistance viewing this page, please call (202) 586-8800. Energy Information Administration Home Page Home > Commercial Buildings Home > Sq Ft Tables > Table 2a. Electricity Consumption per Sq Ft Table 2a. Electricity Consumption and Electricity Intensities, per Square Foot, Specific to Occupied and Vacant Floorspace, 1992 Building Characteristics All Buildings Using Electricity (thousand) Total Electricity Consumption (trillion Btu) Electricity Intensities (thousand Btu) In Total Floor space In Occupied Floor space In Vacant Floor space Per Square Foot Per Occupied Square Foot Per Vacant Square Foot All Buildings 4,590 2,600 2,563 37 39 42 8 Building Floorspace (Square Feet) 1,001 to 5,000 2,532 334 331 3 48 51 6 5,001 to 10,000 946 250 247 3 36 38 6 10,001 to 25,000
The distribution of prime numbers on the square root spiral
Prime Numbers clearly accumulate on defined spiral graphs,which run through the Square Root Spiral. These spiral graphs can be assigned to different spiral-systems, in which all spiral-graphs have the same direction of rotation and the same -second difference- between the numbers, which lie on these spiral-graphs. A mathematical analysis shows, that these spiral graphs are caused exclusively by quadratic polynomials. For example the well known Euler Polynomial x2+x+41 appears on the Square Root Spiral in the form of three spiral-graphs, which are defined by three different quadratic polynomials. All natural numbers,divisible by a certain prime factor, also lie on defined spiral graphs on the Square Root Spiral (or Spiral of Theodorus, or Wurzelspirale). And the Square Numbers 4, 9, 16, 25, 36 even form a highly three-symmetrical system of three spiral graphs, which divides the square root spiral into three equal areas. Fibonacci number sequences also play a part in the structure of the Square Root Spiral. With the help of the Number-Spiral, described by Mr. Robert Sachs, a comparison can be drawn between the Square Root Spiral and the Ulam Spiral. The shown sections of his study of the number spiral contain diagrams, which are related to my analysis results, especially in regards to the distribution of prime numbers.
Harry K. Hahn; Robert Sachs
Form EIA-871A
Approval Approval OMB No.: 1905-0145 Expires: 11/30/2002 Form EIA-871A U.S. Department of Energy Commercial Buildings Energy Consumption Survey for 1999 BUILDING QUESTIONNAIRE TABLE OF CONTENTS About This Questionnaire ...................................................................................................... 3 Section A. Building Size and Age Square Footage .................................................................................................... 5 Floors .................................................................................................................... 8 Year Constructed .................................................................................................. 9 Section B. Principal Building Activity
2003 CBECS Pre-Test Questionnaire
A A U.S. Department of Energy Commercial Buildings Energy Consumption Survey for 2007 BUILDING QUESTIONNAIRE Form Approval OMB No.: 1905-0145 Expires: 9/30/2010 TABLE OF CONTENTS How to Use this Questionnaire ............................................................................................. 1 Section A. Building Size, Structural Characteristics and Age Square Footage .................................................................................................... 5 Structural Characteristics ....................................................................................... 7 Number of Floors ................................................................................................ 10
Aging gene
Aging gene Name: Linda S Martinez Location: NA Country: NA Date: NA Question: Have the aging gene or genes been located on the human chromosomes, and, if yes, will removing that...
Recollecting history : songs, flags and a Syrian square
Symbols have played a major role in the development of a Syrian national identity since the beginning of the 20th century. These representations are national, official, and/or public (flag, song, and square), that are ...
Sergie, Lina, 1974-
Sparse non-linear least squares optimization for geometric vision
Several estimation problems in vision involve the minimization of cumulative geometric error using non-linear least-squares fitting. Typically, this error is characterized by the lack of interdependence among certain subgroups of the parameters to be ...
Manolis I. A. Lourakis
A Unification of Ensemble Square Root Kalman Filters
In recent years, several ensemble-based Kalman filter algorithms have been developed that have been classified as ensemble square root Kalman filters. Parallel to this development, the singular �evolutive� interpolated Kalman (SEIK) filter has ...
Lars Nerger; Tijana Janji?; Jens Schr�ter; Wolfgang Hiller
Fast Rates for Regularized Least-squares Algorithm
We develop a theoretical analysis of generalization performances of regularized least-squares on reproducing kernel Hilbert spaces for supervised learning. We show that the concept of effective dimension of an integral ...
Caponnetto, Andrea
Least Squares Reconstruction of Doppler Radar Spectra for Irregular PRT
A least squares method for the reconstruction of Doppler spectra of weather radars with irregular pulse repetition time used to increase the range of unambiguous velocity is presented and evaluated. This method is a robust spectral method that is ...
John Kalogiros
MC Squared Energy Services, LLC | Open Energy Information
MC Squared Energy Services, LLC MC Squared Energy Services, LLC Jump to: navigation, search Name MC Squared Energy Services, LLC Place Illinois Utility Id 56379 Utility Location Yes Ownership R RTO PJM Yes Operates Generating Plant Yes Activity Retail Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates Commercial: $0.0700/kWh Industrial: $0.0747/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=MC_Squared_Energy_Services,_LLC&oldid=411021"
Electric Mean Squared Radii of Lambda(1405) in Chiral Dynamics
The electric mean squared radii _E of Lambda(1405) are calculated in the chiral unitary model. We describe the Lambda(1405) as a dynamically generated resonance fully in the octet meson and octet baryon scattering. We also consider ``Lambda(1405)'' as a bound state of KbarN. For the later ``Lambda(1405),'' we obtain negative and larger absolute value of electric mean squared radius than that of ordinary baryons, which implies that Lambda(1405) have structure of widely spread K^- around p.
T. Sekihara; T. Hyodo; D. Jido
Aging gauge
An aging gauge comprising a container having a fixed or a variable sized t opening with a cap which can be opened to control the sublimation rate of a thermally sublimational material contained within the container. In use, the aging gauge is stored with an item to determine total heat the item is subjected to and also the maximum temperature to which the item has been exposed. The aging gauge container contains a thermally sublimational material such as naphthalene or similar material which has a low sublimation rate over the temperature range from about 70.degree. F. to about 160.degree. F. The aging products determined by analyses of a like item aged along with the aging gauge for which the sublimation amount is determined is employed to establish a calibration curve for future aging evaluation. The aging gauge is provided with a means for determining the maximum temperature exposure (i.e., a thermally indicating material which gives an irreversible color change, Thermocolor pigment). Because of the relationship of doubling reaction rates for increases of 10.degree. C., equivalency of item used in accelerated aging evaluation can be obtained by referring to a calibration curve depicting storage temperature on the abscissa scale and multiplier on the ordinate scale.
Betts, Robert E. (Huntsville, AL); Crawford, John F. (Huntsville, AL)
A revisit to block and recursive least squares for parameter estimation
In this paper, the classical least squares (LS) and recursive least squares (RLS) for parameter estimation have been re-examined in the light of the present day computing capabilities. It has been demonstrated that for linear time-invariant systems, ... Keywords: Blockwise least squares (BLS), Change detection, Recursive least squares (RLS), Sliding window blockwise least squares (SWBLS), Variable-length window
Jin Jiang; Youmin Zhang
Organic light-emitting diodes from homoleptic square planar complexes
Homoleptic square planar complexes [M(N.LAMBDA.N).sub.2], wherein two identical N.LAMBDA.N bidentate anionic ligands are coordinated to the M(II) metal center, including bidentate square planar complexes of triazolates, possess optical and electrical properties that make them useful for a wide variety of optical and electrical devices and applications. In particular, the complexes are useful for obtaining white or monochromatic organic light-emitting diodes ("OLEDs"). Improved white organic light emitting diode ("WOLED") designs have improved efficacy and/or color stability at high brightness in single- or two-emitter white or monochrome OLEDs that utilize homoleptic square planar complexes, including bis[3,5-bis(2-pyridyl)-1,2,4-triazolato]platinum(II) ("Pt(ptp).sub.2").
Omary, Mohammad A
Latin-square three-dimensional gage master
Jones, L.
Renewal series and square-root boundaries for Bessel processes
We show how a description of Brownian exponential functionals as a renewal series gives access to the law of the hitting time of a square-root boundary by a Bessel process. This extends classical results by Breiman and Shepp, concerning Brownian motion, and recovers by different means, extensions for Bessel processes, obtained independently by Delong and Yor.
Enriquez, Nathanael; Yor, Marc
A multivariate version of Hoeffding's Phi-Square
A multivariate measure of association is proposed, which extends the bivariate copula-based measure Phi-Square introduced by Hoeffding [22]. We discuss its analytical properties and calculate its explicit value for some copulas of simple form; a simulation ... Keywords: Copula, Empirical copula process, Multivariate measure of association, Nonparametric bootstrap, Nonparametric estimation, Primary, Secondary, Strong mixing, Weak convergence
Sandra Gai�er; Martin Ruppert; Friedrich Schmid
Multi-ring performance of the Kendall square multiprocessor
Performance of the hierarchical shared-memory system of the Kendall Square Research multiprocessor is measured and characterized. The performance of prefetch is measured. Latency, bandwidth, and contention are analyzed on a 4-ring, 128 processor system. Scalability comparisons are made with other shared-memory and distributed-memory multiprocessors.
Dunigan, T.H.
Precise root-mean-square radius of {sup 4}He
We study the world data on elastic electron-helium scattering to determine the {sup 4}He charge root-mean-square radius. A precise value for this radius is needed as a reference for a number of ongoing studies in nuclear and atomic physics.
Sick, Ingo [Dept. fuer Physik, Universitaet Basel, CH4056 Basel (Switzerland)
Mercerville-Hamilton Square, New Jersey: Energy Resources | Open Energy
Mercerville-Hamilton Square, New Jersey: Energy Resources Mercerville-Hamilton Square, New Jersey: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.2292669°, -74.6693186° 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":40.2292669,"lon":-74.6693186,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Frankfort Square, Illinois: Energy Resources | Open Energy Information
Square, Illinois: Energy Resources Square, Illinois: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.5189226°, -87.8031048° 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":41.5189226,"lon":-87.8031048,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
New Square, New York: Energy Resources | Open Energy Information
Square, New York: Energy Resources Square, New York: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.13965°, -74.028612° 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":41.13965,"lon":-74.028612,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Square ice, alternating sign matrices and classical orthogonal polynomials
The six-vertex model with Domain Wall Boundary Conditions, or square ice, is considered for particular values of its parameters, corresponding to 1-, 2-, and 3-enumerations of Alternating Sign Matrices (ASMs). Using Hankel determinant representations for the partition function and the boundary correlator of homogeneous square ice, it is shown how the ordinary and refined enumerations can be derived in a very simple and straightforward way. The derivation is based on the standard relationship between Hankel determinants and orthogonal polynomials. For the particular sets of parameters corresponding to 1-, 2-, and 3-enumerations of ASMs, the Hankel determinant can be naturally related to Continuous Hahn, Meixner-Pollaczek, and Continuous Dual Hahn polynomials, respectively. This observation allows for a unified and simplified treatment of ASMs enumerations. In particular, along the lines of the proposed approach, we provide a complete solution to the long standing problem of the refined 3-enumeration of AMSs.
F. Colomo; A. G. Pronko
Square wells, quantum wells and ultra-thin metallic films
The eigenvalue equations for the energy of bound states of a particle in a square well are solved, and the exact solutions are obtained, as power series. Accurate analytical approximate solutions are also given. The application of these results in the physics of quantum wells are discussed,especially for ultra-thin metallic films, but also in the case of resonant cavities, heterojunction lasers, revivals and super-revivals.
Victor Barsan
The purpose of this paper is to present the results of a theoretical study pertaining to the feasibility of Phase Induced Amplitude Apodization (PIAA) units using deformable mirrors (DMs). We begin by reviewing the general derivation of the design equations driving PIAA. We then show how to solve these equations for square apertures and show the performance of pure PIAA systems in the ray optics regime. We tie these design equations into the study of edge diffraction effects and provide a general expression for the field after a full propagation through a PIAA coronagraph. Third, we illustrate how a combination of pre- and post-apodizers yields a contrast of 10{sup -10} even in the presence of diffractive effects, for configuration with neither wavefront errors or wavefront control. Finally, we present novel PIAA configurations over square apertures which circumvent the constraints on the manufacturing of PIAA optics by inducing the apodization with two square DMs. Such solutions rely on pupil size smaller than currently envisioned static PIAA solutions and thus require aggressive pre- and post-apodizing screens in order to mitigate for diffractive effect between the two mirrors. As a result they are associated with significant loss in performance, throughput in particular.
Pueyo, Laurent [Department of Physics and Astronomy, Johns Hopkins University, 366 Bloomberg Center, 3400 N. Charles Street, Baltimore, MD 21218 (United States); Jeremy Kasdin, N.; Carlotti, Alexis [Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544 (United States); Vanderbei, Robert, E-mail: firstname.lastname@example.com [Department of Operations Research and Financial Engineering, Princeton University, Princeton, NJ 08544 (United States)
Rotor-router aggregation on the layered square lattice
In rotor-router aggregation on the square lattice Z^2, particles starting at the origin perform deterministic analogues of random walks until reaching an unoccupied site. The limiting shape of the cluster of occupied sites is a disk. We consider a small change to the routing mechanism for sites on the x- and y-axes, resulting in a limiting shape which is a diamond instead of a disk. We show that for a certain choice of initial rotors, the occupied cluster grows as a perfect diamond.
Kager, Wouter
Positive Scattering Cross Sections using Constrained Least Squares
A method which creates a positive Legendre expansion from truncated Legendre cross section libraries is presented. The cross section moments of order two and greater are modified by a constrained least squares algorithm, subject to the constraints that the zeroth and first moments remain constant, and that the standard discrete ordinate scattering matrix is positive. A method using the maximum entropy representation of the cross section which reduces the error of these modified moments is also presented. These methods are implemented in PARTISN, and numerical results from a transport calculation using highly anisotropic scattering cross sections with the exponential discontinuous spatial scheme is presented.
Dahl, J.A.; Ganapol, B.D.; Morel, J.E.
U.S. uranium drilling in footage, 2004- 2011
Nuclear & Uranium - U.S. Energy Information Administration (EIA) - U.S. Energy Information Administration (EIA) U.S. Energy Information Administration - EIA - Independent...
Directional Distributions and Mean Square Slopes in the Equilibrium and Saturation Ranges of the Wave Spectrum
Field observations show that the crosswind component constitutes a significant portion of the ocean surface mean square slope. The average ratio between the crosswind and upwind mean square slope components is 0.88 in slick-covered ocean ...
Paul A. Hwang; David W. Wang
Dudley Square : a public building as a catalyst for urban revitalization
Dudley Square in Roxbury, Massachusetts serves as the economic and commercial center for Boston's minority community. Between 1650 and 1950 the Dudley Square area grew in importance to become a major economic center outside ...
Raymond, Harold Ray
A square root analog to digital converter to optimally convert photonic signals for computed tomography
The arrival of photons at a given location is a Poisson process with an associated shot noise which rises with the square root of the number of photons received. An analog-to-digital converter (ADC) with a square root ...
Bieniosek, Matthew (Matthew F.)
Aging Logarithmic Galilean Field Theories
We analytically compute correlation and response functions of scalar operators for the systems with Galilean and corresponding aging symmetries for general spatial dimensions $d$ and dynamical exponent $z$, along with their logarithmic and logarithmic squared extensions, using the gauge/gravity duality. These non-conformal extensions of the aging geometry are marked by two dimensionful parameters, eigenvalue $\\mathcal M$ of an internal coordinate and aging parameter $\\alpha$. We further perform systematic investigations on two-time response functions for general $d$ and $z$, and identify the growth exponent as a function of the scaling dimensions $\\Delta$ of the dual field theory operators and aging parameter $\\alpha$ in our theory. The initial growth exponent is only controlled by $\\Delta$, while its late time behavior by $\\alpha$ as well as $\\Delta$. These behaviors are separated by a time scale order of the waiting time. We attempt to make contact our results with some field theoretical growth models, such as Kim-Kosterlitz model at higher number of spatial dimensions $d$.
Seungjoon Hyun; Jaehoon Jeong; Bom Soo Kim
Recent developments: PKI square dish for the Soleras Project
The Square Dish solar collectors are subjected to rigorous design attention regarding corrosion at the site, and certification of the collector structure. The microprocessor controls and tracking mechanisms are improved in the areas of fail safe operations, durability, and low parasitic power requirements. Prototype testing demonstrates performance efficiency of approximately 72% at 730 F outlet temperature. Studies are conducted that include developing formal engineering design studies, developing formal engineering design drawing and fabrication details, establishing subcontracts for fabrication of major components, and developing a rigorous quality control system. The improved design is more cost effective to product and the extensive manuals developed for assembly and operation/maintenance result in faster field assembly and ease of operation.
Rogers, W.E.
A virtual square grid-based coverage algorithm of redundant node for wireless sensor network
A virtual square grid-based coverage algorithm (VSGCA) is proposed in this paper. Each sensor node divides its sensing range into virtual square grids, if all the grids are covered by neighbors, the target node is redundant node. Compared with some previous ... Keywords: Coverage, Energy conservation, Square grid, Wireless sensor network (WSN)
Yanheng Liu; Longxiang Suo; Dayang Sun; Aimin Wang
Aging in American Convents
Schuster. Snowdon, David 2001 Aging with Grace: What the Nunreligion, devotion, and aging. CSW JAN09 update tocAging in American Convents FIELDWORK REPORT by Anna I.
Corwin, Anna I.
2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 ... Average House Square Footage ... United States Cooling Degree Days RKI000:cdd_NewEngland
Building on Success
scientific community. And, more than 10 percent of Sandia's building square footage is LEED (Leadership in Energy and Environmental Design) certified. Key facilities include: The...
Building Energy Code and End Use Benchmarking: Improving energy...
is experiencing tremendous growth, with gross square footage expected to triple by 2030. While most developed countries have put a heavy emphasis on improving energy...
Newer U.S. homes are 30% larger but consume about as much energy ...
The increase in energy for air conditioning also reflects this population migration as well as higher use of central air conditioning and increased square footage.
U.S. General Services Administration Energy Management Case Study
format best suits GSA staff needs * Normalize energy usage data for variables such as weather and square footage * Carry out comparisons between locations to identify best...
LDA - Measurements of Transitional Flows Induced by a Square Rib
New fundamental measurements are presented for the transition process in flat plate boundary layers downstream of two-dimensional square ribs. By use of laser Doppler anemometry (LDA) and a large Matched-Index-of-Refraction (MIR) flow system, data for wall-normal fluctuations and Reynolds stresses were obtained in the near wall region to y+<0.1 in addition to the usual mean streamwise velocity component and its fluctuation. By varying velocity and rib height, the experiment investigated the following range of conditions: k+ = 5.5 to 21, 0.3 Becker, S.; Durst, F.; Stoots, Carl Marcel; Condie, Keith Glenn; McEligot, Donald Marinus 2002-03-01T23:59:59.000Z
Becker, S.; Durst, F.; Stoots, Carl Marcel; Condie, Keith Glenn; McEligot, Donald Marinus
Science With The Australian Square Kilometre Array Pathfinder
The future of cm and m-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries that will be 50 times more sensitive than any existing radio facility. Most of the key science for the SKA will be addressed through large-area imaging of the Universe at frequencies from a few hundred MHz to a few GHz. The Australian SKA Pathfinder (ASKAP) is a technology demonstrator aimed in the mid-frequency range, and achieves instantaneous wide-area imaging through the development and deployment of phased-array feed systems on parabolic reflectors. The large field-of-view makes ASKAP an unprecedented synoptic telescope that will make substantial advances in SKA key science. ASKAP will be located at the Murchison Radio Observatory in inland Western Australia, one of the most radio-quiet locations on the Earth and one of two sites selected by the international community as a potential location for the SKA. In this paper, we outline an ambitious science program for ASKAP, examining key science such as understanding the evolution, formation and population of galaxies including our own, understanding the magnetic Universe, revealing the transient radio sky and searching for gravitational waves.
Simon Johnston
The ordered distribution of natural numbers on the square root spiral
Natural numbers divisible by the same prime factor lie on defined spiral graphs which are running through the Square Root Spiral (also named as the Spiral of Theodorus or Wurzel Spirale or Einstein Spiral). Prime Numbers also clearly accumulate on such spiral graphs. And the square numbers 4, 9, 16, 25, 36,... form a highly three-symmetrical system of three spiral graphs, which divides the square-root-spiral into three equal areas. A mathematical analysis shows that these spiral graphs are defined by quadratic polynomials. Fibonacci number sequences also play a part in the structure of the Square Root Spiral. Fibonacci Numbers divide the Square Root Spiral into areas and angle sectors with constant proportions. These proportions are linked to the golden mean (or golden section), which behaves as a self-avoiding-walk-constant in the lattice-like structure of the square root spiral.
Harry K. Hahn; Kay Schoenberger
Gravity-Induced Aging in Glasses of Colloidal Hard Spheres Nikoleta B. Simeonova and Willem K. Kegel*
Gravity-Induced Aging in Glasses of Colloidal Hard Spheres Nikoleta B. Simeonova and Willem K) The influence of gravity on the long-time behavior of the mean squared displacement in glasses of polydisperse present, for the first time, a significant influence of gravity on the mean squared displacements
Weeks, Eric R.
Thoughts on Aging
The impetus of writing about aging came the other day afterMagnetic Resonance Thoughts on Aging George Feher Received:at Springerlink.com When we, aging scientists, fade away and
Feher, George
Fully complex-valued radial basis function networks: Orthogonal least squares regression and classification
We consider a fully complex-valued radial basis function (RBF) network for regression and classification applications. For regression problems, the locally regularised orthogonal least squares (LROLS) algorithm aided with the D-optimality experimental ... Keywords: Classification, Complex-valued radial basis function network, D-optimality experimental design, Fisher ratio of class separability measure, Orthogonal least squares algorithm, Regression
S. Chen; X. Hong; C. J. Harris; L. Hanzo
Generation of pornographic blacklist and its incremental update using an inverse chi-square based method
This study presented an inverse chi-square based web content classification system that works along with an incremental update mechanism for incremental generation of pornographic blacklist. The proposed system, as indicated from the experimental results, ... Keywords: Incremental update, Inverse chi-square function, Pornographic blacklist, Web content classification
Lung-Hao Lee; Cheng-Jye Luh
Least-Squares Spectral Method for the solution of a fractional advection-dispersion equation
Fractional derivatives provide a general approach for modeling transport phenomena occurring in diverse fields. This article describes a Least Squares Spectral Method for solving advection-dispersion equations using Caputo or Riemann-Liouville fractional ... Keywords: Advection-dispersion, Anomalous diffusion, Anomalous transport, Caputo derivative, Fractional derivative, Least-Squares, Riemann-Liouville derivative, Riesz derivative, Spectral Method
Alfredo Ra�L Carella; Carlos Alberto Dorao
Algorithm 741: least-squares solution of a linear, bordered, block-diagonal system of equations
A package of Fortran subroutines is presented for the least-squares solution of a system of overdetermined, full-rank, linear equations with single-bordered block-diagonal structure. This structure allows for a natural sequential processing, one block ... Keywords: bordered block-diagonal equations, least-squares solutions, sparse systems
Richard D. Ray
Applying least squares support vector machines to the airframe wing-box structural design cost estimation
This research used the least squares support vector machines (LS-SVM) method to estimate the project design cost of an airframe wing-box structure. We also compared the estimation performance using back-propagation neural networks (BPN) and statistical ... Keywords: Airframe structure, Back-propagation neural networks, Cost estimation, Least squares support vector machines, Response surface methodology
S. Deng; Tsung-Han Yeh
Supercomputers Crack Sixty-Trillionth Binary Digit of Pi-Squared |
Supercomputers Crack Sixty-Trillionth Binary Digit of Pi-Squared Supercomputers Crack Sixty-Trillionth Binary Digit of Pi-Squared Supercomputers Crack Sixty-Trillionth Binary Digit of Pi-Squared April 28, 2011 - 11:28am Addthis David H. Bailey | Photo Courtesy of Lawrence Berkely National Lab David H. Bailey | Photo Courtesy of Lawrence Berkely National Lab Linda Vu What are the key facts? Australian researchers have found the sixty-trillionth binary digit of Pi-squared. The calculation would have taken a single computer processor unit (CPU) 1,500 years to calculate, but it took just a few months on IBM's "BlueGene/P" supercomputer, which is designed to run continuously at one quadrillion calculations per second. Pi is one of the most mysterious numbers in mathematics and can never be expressed as a finite decimal number -- humanity will never have
Approximate square-root-time relaxation in glass-forming liquids
We present data for the dielectric relaxation of 43 glass-forming organic liquids, showing that the primary (alpha) relaxation is often close to square-root-time relaxation. The better an inverse power-law description of the high-frequency loss applies, the more accurately is square-root-time relaxation obeyed. These findings suggest that square-root-time relaxation is generic to the alpha process, once a common view, but since long believed to be incorrect. Only liquids with very large dielectric losses deviate from this picture by having consistently narrower loss peaks. As a further challenge to the prevailing opinion, we find that liquids with accurate square-root-time relaxation cover a wide range of fragilities.
Albena I. Nielsen; Tage Christensen; Bo Jakobsen; Kristine Niss; Niels Boye Olsen; Ranko Richert; Jeppe C. Dyre
Ocean Interpolation by Four-Dimensional Weighted Least Squares�Application to the Waters around Australasia
A new four-dimensional ocean interpolation system based on locally weighted least squares fitting is presented. A loess filter is used to interpolate irregularly spaced data onto a uniform grid. This involves projecting the data onto quadratic ...
K. R. Ridgway; J. R. Dunn; J. L. Wilkin
Skill Scores Based on the Mean Square Error and Their Relationships to the Correlation Coefficient
Several skill scores are defined, based on the mean-square-error measure of accuracy and alternative climatological standards of reference. Decompositions of these skill scores are formulated, each of which is shown to possess terms involving 1) ...
Allan H. Murphy
Implications of the Form of the Ensemble Transformation in the Ensemble Square Root Filters
This paper considers implications of different forms of the ensemble transformation in the ensemble square root filters (ESRFs) for the performance of ESRF-based data assimilation systems. It highlights the importance of using mean-preserving ...
Pavel Sakov; Peter R. Oke
Numerical Investigation of Turbulent Natural Convection in Differentially Heated Square Cavities
This paper deals with the numerical simulation of turbulent natural convection in cavities heated from the side. Three cases are considered: an air?filled square cavity of size 0.75 m
Sonja Schmelter; Gert Lindner; Gudrun Wendt; Regine Model
Least Squares Retrieval of Microburst Winds from Single-Doppler Radar Data
A least squares (LS) method is developed for retrieving low-altitude winds from single-Doppler radar scans. The method is tested with Denver airport microburst data and the results compared with the previously developed simple adjoint (SA) ...
Chong-Jian Qiu; Qin Xu
Matching method and exact solvability of discrete PT-symmetric square wells
Discrete PT-symmetric square wells are studied. Their wave functions are found proportional to classical Tshebyshev polynomials of complex argument. The compact secular equations for energies are derived giving the real spectra in certain intervals of non-Hermiticity strengths Z. It is amusing to notice that although the known square well re-emerges in the usual continuum limit, a twice as rich, upside-down symmetric spectrum is exhibited by all its present discretized predecessors.
Miloslav Znojil
An optical pattern recognition architecture implementing the mean-square-error correlation algorithm
The present invention relates to optical computing and image and pattern recognition systems and techniques in general and, more particularly, to an optical architecture for accomplishing real-time two-dimensional pattern recognition by implementing the so-called Mean-Square-Error'' correlation algorithm (also referred to as the Difference-Squared Error'' algorithm) for discriminating, i.e., recognizing two-dimensional patterns in gray-scale images. 16 figs.
Molley, P.A.
Residential Energy Consumption Survey (RECS) - Analysis & Projections -
Where does RECS square footage data come from? Where does RECS square footage data come from? RECS 2009 - Release date: July 11, 2012 The size of a home is a fixed characteristic strongly associated with the amount of energy consumed within it, particularly for space heating, air conditioning, lighting, and other appliances. As a part of the Residential Energy Consumption Survey (RECS), trained interviewers measure the square footage of each housing unit. RECS square footage data allow comparison of homes with varying characteristics. In-person measurements are vital because many alternate data sources, including property tax records, real estate listings, and, respondent estimates use varying definitions and under-estimate square footage as defined for the purposes of evaluating residential energy consumption.
Solutioning and Aging Behaviours
Mar 13, 2012 ... Aluminum Alloys: Fabrication, Characterization and Applications: Solutioning and Aging Behaviours Sponsored by: The Minerals, Metals and�...
Solutioning and Aging Behaviors
Aluminum Alloys: Development, Characterization and Applications: Solutioning and Aging Behaviors Sponsored by: TMS Light Metals Division, TMS: Aluminum
Aging of SRC liquids
The viscosity of SRC?LL liquid increases when subjected to accelerated aging by bubbling oxygen in the presence of copper strip at 62�C. Precipitates are formed and can be separated from the aged liquid by Soxhlet extraction with pentane. A 30?70 blend of SRC?I with SRC?LL was subjected to oxygen aging in the absence of copper
T. Hara; L. Jones; K. C. Tewari; N. C. Li
Determining age of whales
Determining age of whales Determining age of whales Name: Bruce W Walkey Age: N/A Location: N/A Country: N/A Date: N/A Question: While browsing through the Internet, I came upon a question by two fifth grade students. Their question got me thinking and now I pose it to you. How can you determine the age of whales? Since they are mammals, can the methods that are used on humans be used on whales? What are some tests that can be done on bones or tissues to determine age? Looking forward to your reply. Replies: Although it is difficult to determine the age of whales (unless they are born in captivity and we know their birth date), several methods have been commonly used: 1) (if female) the examination of the ovaries 2) Examination of the ridges on baleen, which are not uniform in size and analogous to tree rings. The problem with this is that baleen wears away over time. 3) Studying layers of ossification in an ear bone is probably the most accurate method of aging, since internal bones don't wear away. The biggest problem with aging methods is that they usually require that you are dissecting the animal, and often, we would like a method of aging for live active animals. The best we can do here is to compare the size and markings of whales of known age to those found in the wild. Great question!
Justice Square
into sunrise in Mashhad, Iran Sound of EKG Monitors fadesMORNING TITLE CARD: MASHHAD, IRAN The CALL TO PRAYER soundsBENHAM If we can get you into Iran you have a good chance at
Deratany, Jay Paul
Aging Matters What's Inside
Aging Matters What's Inside Letter from the dean PSU winS Carter award artiSan eConomy eLi BUi and Public affairs 2008 fall newsletter www.pdx.edu/cupa aGinG is a modern fact of life. In 2006 the world's population of adults aged 60 or over was 650 million. By 2025 that number will nearly double. By 2050
Bertini, Robert L.
Materials Degradation and Aging
Aug 28, 2007 ... Improve plant capacity, reliability, and availability. Materials Degradation and Aging - An EPRI Nuclear Power Action Plan, Report No.
Melatonin and the aging brain
mitochondrial decay of aging. Mol. Aspects Med. 26, Ames,the degenerative diseases of aging. Proc. Natl. Acad. Sci.2004. Retardation of brain aging by chronic treatment with
Advanced Online Flux Mapping of CANDU PHWR by Least-Squares Method
A least-squares method that solves both the core neutronics design equations and the in-core detector response equations on the least-squares principle is presented as a new advanced online flux-mapping method for CANada Deuterium Uranium (CANDU) pressurized heavy water reactors (PHWRs). The effectiveness of the new flux-mapping method is examined in terms of online flux-mapping calculations with numerically simulated true flux distribution and detector signals and those with the actual core-follow data for the Wolsong CANDU PHWRs in Korea. The effects of core neutronics models as well as the detector failures and uncertainties of measured detector signals on the effectiveness of the least-squares flux-mapping calculations are also examined.The following results are obtained. The least-squares method predicts the flux distribution in better agreement with the simulated true flux distribution than the standard core neutronics calculations by the finite difference method (FDM) computer code without using the detector signals. The adoption of the nonlinear nodal method based on the unified nodal method formulation instead of the FDM results in a significant improvement in prediction accuracy of the flux-mapping calculations. The detector signals estimated from the least-squares flux-mapping calculations are much closer to the measured detector signals than those from the flux synthesis method (FSM), the current online flux-mapping method for CANDU reactors. The effect of detector failures is relatively small so that the plant can tolerate up to 25% of detector failures without seriously affecting the plant operation. The detector signal uncertainties aggravate accuracy of the flux-mapping calculations, yet the effects of signal uncertainties of the order of 1% standard deviation can be tolerable without seriously degrading the prediction accuracy of the least-squares method. The least-squares method is disadvantageous because it requires longer CPU time than the existing FSM. Considering ever-increasing computer speed and the improved operational safety margin of CANDU reactors gained by accurate flux-mapping calculations, however, it is concluded that the least-squares method presents an effective alternative to the existing flux-mapping method for CANDU reactors.
Hong, In Seob [Seoul National University (Korea, Republic of); Kim, Chang Hyo [Seoul National University (Korea, Republic of); Suk, Ho Chun [Korea Atomic Energy Research Institute (Korea, Republic of)
Table 5a. Total District Heat Consumption per Effective Occupied Square
a. Total District Heat Consumption per Effective a. Total District Heat Consumption per Effective Occupied Square Foot, 1992 Building Characteristics All Buildings Using District Heat (thousand) Total District Heat Consumption (trillion Btu) District Heat Intensities (thousand Btu) Per Square Foot Per Effective Occupied Square Foot All Buildings 94 429 84 93 Building Floorspace (Square Feet) 1,001 to 5,000 18 Q Q Q 5,001 to 10,000 11 Q Q Q 10,001 to 25,000 28 65 144 155 25,001 to 50,000 16 Q Q Q 50,001 to 100,000 9 50 79 81 100,001 to 200,000 6 59 76 79 200,001 to 500,000 5 109 71 77 Over 500,000 1 65 62 80 Principal Building Activity Education 22 50 71 78 Food Sales and Service Q Q Q Q Health Care 3 57 100 142 Lodging 9 66 112 116 Mercantile and Service 9 Q Q Q Office 24 110 63 70 Public Assembly 10 23 64 66 Public Order and Safety Q Q Q Q Religious Worship Q Q Q Q Warehouse and Storage
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
Gravity as the square of Yang-Mills: implications for N=8 Supergravity
The pure gravity Lagrangian can be written as the "square" of the pure Yang-Mills Lagrangian to second order in coupling constants. This paper uses this form of the gravity Lagrangian as a starting point to arrive at a compact light-cone superspace Lagrangian for N=8 Supergravity to order $\\kappa$^2.
Sudarshan Ananth
Impact Ionization Model Using Average Energy and Average Square Energy of Distribution Function
Impact Ionization Model Using Average Energy and Average Square Energy of Distribution Function Ken relaxation length, v sat ø h''i (¸ 0:05¯m), the energy distribution function is not well described calculation of impact ionization coefficient requires the use of a high energy distribution function because
Dunham, Scott
Use of multiple 4$pi$ radiation sources for quasi-uniform irradiation of square surfaces
The question of distance and location of multiple 4 pi radiation sources from square planar target surfaces is addressed, with the constraint that the surface be irradiated with 80% uniformity. Results of computer calculations are presented, giving source location coordinates for optimum use of the sources under the uniformity constraint. (auth)
Clark, R.W.; Freiwald, D.A.
Revenue forecasting using a least-squares support vector regression model in a fuzzy environment
Revenue forecasting is difficult but essential for companies that want to create high-quality revenue budgets, especially in an uncertain economic environment with changing government policies. Under these conditions, the subjective judgment of decision ... Keywords: Genetic algorithms, Least-squares support vector regression, Membership function, Revenue forecasting
Kuo-Ping Lin; Ping-Feng Pai; Yu-Ming Lu; Ping-Teng Chang
2012 Special Issue: Orthogonal least squares based complex-valued functional link network
Functional link networks are single-layered neural networks that impose nonlinearity in the input layer using nonlinear functions of the original input variables. In this paper, we present a fully complex-valued functional link network (CFLN) with multivariate ... Keywords: Complex-valued neural network, Function approximation, Functional link network, Multivariate polynomial, Orthogonal least squares
Md. Faijul Amin; Ramasamy Savitha; Muhammad Ilias Amin; Kazuyuki Murase
Total least squares in fuzzy system identification: An application to an industrial engine
Takagi-Sugeno fuzzy models have proved to be a powerful tool for the identification of nonlinear dynamic systems. Their generic nonlinear model representation is particularly useful if information about the structure of the nonlinearity is available. ... Keywords: Gas engine, Identification algorithms, Local model networks, Nonlinear system identification, Steady-state constraints, Takagi-Sugeno fuzzy models, Total least squares
Stefan Jakubek; Christoph Hametner; Nikolaus Keuth
Contributed paper: Robust digital watermarking in PDTDFB domain based on least squares support vector machine
Geometric distortion is known as one of the most difficult attacks to resist, for it can desynchronize the location of the watermark and hence causes incorrect watermark detection. It is a challenging work to design a robust image watermarking scheme ... Keywords: Gaussian-Hermite moment, Geometric distortion, Image watermarking, Least squares support vector machine (LS-SVM), Shiftable complex directional pyramid (PDTDFB)
Hong-Ying Yang, Xiang-Yang Wang, Yan Zhang, Miao E-Nuo
DIVERGENCE-FREE AND CURL-FREE WAVELETS ON THE SQUARE FOR NUMERICAL SIMULATIONS SOULEYMANE KADRI Grenoble cedex 9, France August 30, 2011 Abstract We present a construction of divergence-free and curl-free and integration. We introduce new BMRAs and wavelets for the spaces of divergence-free and curl-free vector
Paris-Sud XI, Université de
Weighted least-squares finite elements based on particle imaging velocimetry data
The solution of the Navier-Stokes equations requires that data about the solution is available along the boundary. In some situations, such as particle imaging velocimetry, there is additional data available along a single plane within the domain, and ... Keywords: Data assimilation, Finite element, Least-squares, Particle imaging velocimetry
J. J. Heys; T. A. Manteuffel; S. F. McCormick; M. Milano; J. Westerdale; M. Belohlavek
Least-Squares Support Vector Machine Approach to Viral Replication Origin Prediction
Replication of their DNA genomes is a central step in the reproduction of many viruses. Procedures to find replication origins, which are initiation sites of the DNA replication process, are therefore of great importance for controlling the growth and ... Keywords: caudoviruses, feature selection, herpesviruses, least-squares support vector machines, replication origins
Raul Cruz-Cano; David S. H. Chew; Kwok-Pui Choi; Ming-Ying Leung
Neural data fusion algorithms based on a linearly constrained least square method
Two novel neural data fusion algorithms based on a linearly constrained least square (LCLS) method are proposed. While the LCLS method is used to minimize the energy of the linearly fused information, two neural-network algorithms are developed to overcome ...
Youshen Xia; H. Leung; E. Bosse
Analyzing currency crises' real effects with partial least squares sensitivity analysis
The effects of a currency crisis on a country's economy depend on non-linear relations among several variables that characterize the economic, financial, legal, and socio-political structure of the country at the onset of the crisis. We seek to determine ... Keywords: Currency crises, partial least squares, variable selection
Ismael E. Arciniegas Rueda; Fabio A. Arciniegas; Mark J. Embrechts
Physical modelling and particle swarm design of coplanar waveguide square spiral inductor
This paper presents simple lumped element equivalent circuit for the coplanar waveguide (CPW) square spiral inductor. The circuit is based on physical modelling which takes into consideration the parasitic effects inherent in the CPW spiral inductor. ... Keywords: circuit modelling, coplanar waveguide, inductor, particle swarm optimization
N. I. Dib; J. I. Ababneh
Aging and Holography
Aging phenomena are examples of `non-equilibrium criticality' and can be exemplified by systems with Galilean and scaling symmetries but no time translation invariance. We realize aging holographically using a deformation of a non-relativistic version of gauge/gravity duality. Correlation functions of scalar operators are computed using holographic real-time techniques, and agree with field theory expectations. At least in this setup, general aging phenomena are reproduced holographically by complexifying the bulk space-time geometry, even in Lorentzian signature.
Juan I. Jottar; Robert G. Leigh; Djordje Minic; Leopoldo A. Pando Zayas
Finite Temperature Aging Holography
We construct the gravity background which describes the dual field theory with aging invariance. We choose the decay modes of the bulk scalar field in the internal spectator direction to obtain the dissipative behavior of the boundary correlation functions of the dual scalar fields. In particular, the two-time correlation function at zero temperature has the characteristic features of the aging system: power law decay, broken time translation and dynamical scaling. We also construct the black hole backgrounds with asymptotic aging invariance. We extensively study characteristic behavior of the finite temperature two-point correlation function via analytic and numerical methods.
HEU age determination
A technique has been developed to determine the Highly Enriched Uranium (HEU) Age which is defined as the time since the HEU was produced in an enrichment process. The HEU age is determined from the ratios of relevant uranium parents and their daughters viz {sup 230}Th/{sup 234}U and {sup 231}Pa/{sup 235}U. Uranium isotopes are quantitatively measured by their characteristic gammas and their daughters by alpha spectroscopy. In some of the samples where HEU is enriched more than 99%, the only mode of HEU age determination is by the measurement of {sup 231}Pa since there is negligible quantity of {sup 230}Th due to very low atom concentrations of {sup 234}U in the sample. In this paper we have presented data and methodology of finding the age of two HEU samples.
Moorthy, A.R.; Kato, W.Y.
Speech understanding and aging
The increasing age of the population forecasts a corresponding increase in the number of people suffering from hearing loss and who therefore have difficulty with speech communication. This article
Working Group on Speech Understanding and Aging
A new technique has been developed to determine the age of highly enriched uranium (HEU) in solids. Uranium age is defined as the time since the uranium-containing material was last subjected to a process capable of separating uranium from its radioactive-decay daughters. [Most chemical processing, uranium enrichment, volatilization processes, and phase transformations (especially relevant for uranium hexafluoride) can result in separation of the uranium parent material from the decay-product daughters.] Determination of the uranium age, as defined here, may be relevant in verifying arms-control agreements involving uranium-containing nuclear weapons. The HEU age is determined from the ratios of relevant uranium daughter isotopes and their parents, viz {sup 230}Th/{sup 234}U and {sup 231}Pa/{sup 235}U. Uranium isotopes are quantitatively measured by their characteristic gamma rays and their daughters by alpha spectroscopy. In some of the samples, where HEU is enriched more than 99%, the only mode of HEU age determination is by the measurement of {sup 231}Pa since there is negligible quantity of {sup 230}Th due to very low atom concentrations of {sup 234}U in the samples. In this report the methodology and the data for determining the age of two HEU samples are presented.
Aging and PBX 9502
Components made from PBX 9502, an insensitive high explosive formulated with triaminotrinitrobenzene (TATB) and Kel-F 800 binder, have been in service for nearly two decades. Since that time, samples have been destructively evaluated to determine if potential changes that might affect safety, reliability, or performance have occurred in the high explosive with time. Data from routine, historical testing is reported elsewhere. This paper focuses on specific tests conducted to evaluate the effects of natural aging on handling sensitivity (through the small-scale tests of Human Electrostatic Discharge, friction, and Drop Weight Impact), compressive strength, and thermal ignition. Also reported are the effects of a radiation environment on TATB. Small-scale sensitivity tests show no differences between aged and unaged material. Observed differences in compressive strength behavior are attributed to conditions of original material rather than aging effects. Thermal ignition by flame and laser methods showed no changes between aged and unaged material. Extreme levels of radiation are shown to have only minimal effects in explosive response tests. PBX 9502 is concluded, once again, to be a very stable material, aging gracefully.
Skidmore, C.B.; Idar, D.J.; Buntain, G.A.; Son, S.F.; Sander, R.K.
Square-wave switching by crossed-polarization gain modulation in vertical-cavity semiconductor lasers
We study experimentally and theoretically the effects of crossed-polarization reinjection (XPR) on the output characteristics of a vertical-cavity semiconductor laser. We find a set of parameters values for which each polarization component develops a square-wave modulation at a period close to twice the reinjection delay. We analyze the regularity of this modulation in terms of the laser pumping current and of the reinjection level. These observations are numerically reproduced within the spin-flip model modified to account for XPR. In particular, the degradation of the square-wave switching is linked to the finite value of the spin-flip rate, and it occurs when the current approaches the boundaries of polarization bistability.
Mulet, J.; Giudici, M.; Javaloyes, J.; Balle, S. [Institut Mediterrani d'Estudis Avancats, CSIC UIB, E-07071 Palma de Mallorca (Spain)
Method for exploiting bias in factor analysis using constrained alternating least squares algorithms
Bias plays an important role in factor analysis and is often implicitly made use of, for example, to constrain solutions to factors that conform to physical reality. However, when components are collinear, a large range of solutions may exist that satisfy the basic constraints and fit the data equally well. In such cases, the introduction of mathematical bias through the application of constraints may select solutions that are less than optimal. The biased alternating least squares algorithm of the present invention can offset mathematical bias introduced by constraints in the standard alternating least squares analysis to achieve factor solutions that are most consistent with physical reality. In addition, these methods can be used to explicitly exploit bias to provide alternative views and provide additional insights into spectral data sets.
Keenan, Michael R. (Albuquerque, NM)
Squares of White Noise, SL(2,C) and Kubo - Martin -Schwinger States
We investigate the structure of Kubo - Martin - Schwinger (KMS) states on some extension of the universal enveloping algebra of SL(2,C}. We find that there exists a one-to-one correspondence between the set of all covariant KMS states on this algebra and the set of all probability measures d\\mu on the real half-line, which decrease faster than any inverse polynomial. This problem is connected to the problem of KMS states on square of white noise algebra.
D. V. Prokhorenko
Magnetic Reversal of an Artificial Square Ice: Dipolar Correlation and Charge Ordering
Magnetic reversal of an artificial square ice pattern subject to a sequence of magnetic fields applied slightly off the diagonal axis is investigated via magnetic force microscopy of the remanent states that result. Sublattice independent reversal is observed via correlated incrementally pinned flip cascades along parallel dipolar chains, as evident from analysis of vertex populations and dipolar correlation functions. Weak dipolar interactions between adjacent chains favour antialignment and give rise to weak charge ordering of 'monopole' vertices during the reversal process.
Stein A.; Morgan J.P.; Langridge S.; Marrows C.H.
Extended Grimus-Stockinger theorem and inverse square law violation in quantum field theory
We study higher-order corrections to the Grimus-Stockinger theorem dealing with the large-distance asymptotic behavior of the wave-packet modified neutrino propagator within the framework of field-theoretical description of the neutrino oscillation phenomenon. We discuss the possibility that these corrections are responsible for breakdown of the classical inverse-square law (ISL) at the macroscopic distances. In particular the ISL violation can be an explanation of the well-known reactor antineutrino anomaly.
Naumov, Vadim A
Vadim A. Naumov; Dmitry S. Shkirmanov
Semi-flexible interacting self-avoiding trails on the square lattice
Self-avoiding walks self-interacting via nearest neighbours (ISAW) and self-avoiding trails interacting via multiply-visited sites (ISAT) are two models of the polymer collapse transition of a polymer in dilute solution. On the square lattice it has been established numerically that the collapse transition of each model lies in a different universality class. It has been shown that by adding stiffness to the ISAW model a second low temperature phase eventuates and a more complicated phase diagram ensues with three types of transition that meet at a multi-critical point. For large enough stiffness the collapse transition becomes first-order. Interestingly, a phase diagram of a similar structure has been seen to occur in an extended ISAT model on the triangular lattice without stiffness. It is therefore of interest to see the effect of adding stiffness to the ISAT model. We have studied by computer simulation a generalised model of self-interacting self-avoiding trails on the square lattice with a stiffness parameter added. Intriguingly, we find that stiffness does not change the order of the collapse transition for ISAT on the square lattice for a very wide range of stiffness weights. While at the lengths considered there are clear bimodal distributions for very large stiffness, our numerical evidence strongly suggests that these are simply finite-size effects associated with a crossover to a first-order phase transition at infinite stiffness.
A Bedini; A L Owczarek; T Prellberg
A criteria that a sample of highly enriched uranium (HEU) had come from a weapons stockpile and not newly produced in an enrichment plant is to show that the HEU had been produced a significant time in the past. The time since the HEU has produced in an enrichment plant is defined as the age of the HEU in this paper. The HEU age is determined by measuring quantitatively the daughter products {sup 230}Th and {sup 231}Pa of {sup 234}U and {sup 235}U, respectively, by first chemical separation of the thorium and protactinium and then conducting alpha spectrometry of the daughter products.
Determination of a control parameter in a one-dimensional parabolic equation using the moving least-square approximation
In this paper the approximation of moving least-square (MLS) is used for finding the solution of a one-dimensional parabolic inverse problem with source control parameter. Comparing with other numerical methods based on meshes such as finite difference ... Keywords: inverse problem, meshless method, moving least-square approximation, overspecification, parabolic equation
Rongjun Cheng
Aging in fragile X syndrome
intensified the need for aging studies in FXS. Approximatelywe have surveyed all of the aging patients with FXS that wemedical complications of aging seen in those with FXS. Data
The distribution of natural numbers divisible by 2,3,5,11,13 and 17 on the Square Root Spiral
The natural numbers divisible by the Prime Factors 2, 3, 5, 11, 13 and 17 lie on defined spiral graphs, which run through the Square Root Spiral. A mathematical analysis shows, that these spiral graphs are defined by specific quadratic polynomials. Basically all natural number which are divisible by the same prime factor lie on such spiral graphs. And these spiral graphs can be assigned to a certain number of Spiral Graph Systems, which have a defined spatial orientation to each other. This document represents a supplementation to my detailed introduction study to the Square Root Spiral, and it contains the missing diagrams and analyses, showing the distribution of the natural numbers divisible by 2, 3, 5, 11, 13 and 17 on the Square Root Spiral. My introduction study to the Square Root Spiral can be found in the arxiv-archive. The title of this study : The ordered distribution of the natural numbers on the Square Root Spiral.
Harry K. Hahn
Aging in community
Baby Boomers are on the brink of retirement. According to U.S. Census Bureau projections, the number of people aged 65 and over will more than double in the coming decades, growing from 35 million in 2000 to 72 million in ...
Fay, Justin (Justin Thomas)
Modification of the aging dynamics of glassy polymers due to a temperature step
Molecular dynamics simulations are used to investigate the connection between thermal history and physical aging in polymer glasses, in particular the effects of a temperature square step. Measurements of two-time correlation functions show that a negative temperature step causes "rejuvenation" of the sample: the entire spectrum of relaxation times appears identical to a younger specimen that did not experience a temperature step. A positive temperature step, however, leads to significant changes in the relaxation times. At short times, the dynamics are accelerated (rejuvenation), whereas at long times the dynamics are slowed (over-aging). All findings are in excellent qualitative agreement with recent experiments. The two regimes can be explained by the competing contributions of dynamical heterogeneities and faster aging dynamics at higher temperatures. As a result of this competition, the transition between rejuvenation and over-aging depends on the length of the square step, with shorter steps causing more rejuvenation and longer steps causing more over-aging. Although the spectrum of relaxation times is greatly modified by a temperature step, the van Hove functions, which measure the distribution of particle displacements, exhibit complete superposition at times when the mean-squared displacements are equal.
Mya Warren; Joerg Rottler
3, 435467, 2007 Gas age-ice age
in the ice phase (using volcanic horizons) and in the gas phase (using rapid methane variations). We useCPD 3, 435467, 2007 Gas age-ice age differences along the EPICA cores L. Loulergue et al. Title of the Past New constraints on the gas age-ice age difference along the EPICA ice cores, 050 kyr L. Loulergue
Invited Article Aging male
Now a day, tremendous development of medicine, change of living environment, housing accommodation computer have led to extension of human life expectancy. The population of 60 years old up will increase from 328 millions in years 1990 to 828 millions by years 2020 (united nation, 2001). In Thailand, the aged population will reach 7.6 millions by the year 2010 (11.4 % of total population). In aging male, the incidence of many non communicable diseases is increasing such as metabolic syndrome (DM, dyslipidemia, hypertension, and obesity), coronary heart disease, cerebrovascular disease and disease of endothelial dysfunction. At the same time, the gradual decrease of several hormones, for instance, growth hormone, sex hormone, thyroid hormone; etc, also lead to hormonal imbalance which contributes to
Assoc Prof; Dr. Chanvit Kotheeranurak
Automatic Age Estimation Based on Facial Aging Patterns
Abstract�While recognition of most facial variations, such as identity, expression, and gender, has been extensively studied, automatic age estimation has rarely been explored. In contrast to other facial variations, aging variation presents several unique characteristics which make age estimation a challenging task. This paper proposes an automatic age estimation method named AGES (AGing pattErn Subspace). The basic idea is to model the aging pattern, which is defined as the sequence of a particular individual�s face images sorted in time order, by constructing a representative subspace. The proper aging pattern for a previously unseen face image is determined by the projection in the subspace that can reconstruct the face image with minimum reconstruction error, while the position of the face image in that aging pattern will then indicate its age. In the experiments, AGES and its variants are compared with the limited existing age estimation methods (WAS and AAS) and some well-established classification methods (kNN, BP, C4.5, and SVM). Moreover, a comparison with human perception ability on age is conducted. It is interesting to note that the performance of AGES is not only significantly better than that of all the other algorithms, but also comparable to that of the human observers. Index Terms�Computer vision, pattern recognition, machine learning, face and gesture recognition, age estimation. 1
Xin Geng; Zhi-hua Zhou; Senior Member; Kate Smith-miles; Senior Member
The effect of interelement dipole coupling in patterned ultrathin single crystal Fe square arrays
The correlation between the magnetic properties and the interelement separation in patterned arrays of ultrathin single crystal Fe films of 12 monolayers (ML) grown on GaAs(100) has been studied. The critical condition to form single domain remanent states in the square elements was found to be 10 {mu}m in size and 20 {mu}m for the interelement separation. The coercivity was also found to increase with the increasing interelement separation in the patterned arrays. These results are attributed to the competition between the large in-plane uniaxial anisotropy, the demagnetizing field, and interelement dipole coupling as determined semiqualitatively by the ferromagnetic resonance measurements.
Sun Li; Zhai Ya [Department of Physics, Southeast University, Nanjing 211189 (China); Department of Electronics, Spintronics and Nanodevice Laboratory, University of York, York YO10 5DD (United Kingdom); Wong Pingkwanj; Zhang Wen; Xu Yongbing [Department of Electronics, Spintronics and Nanodevice Laboratory, University of York, York YO10 5DD (United Kingdom); Zou Xiao; Wu Jing [Department of Physics, University of York, York YO10 5DD (United Kingdom); Luo Linqiang; Zhai Hongru [National Laboratory of Solid Microstructures, Nanjing University, Nanjing 210093 (China)
Spin-projection orientations in the plane square-lattice Ising model with periodic boundary conditions
The periodic boundary conditions changed the plane square-lattice Ising model to the torus-lattice system which restricts the spin-projection orientations. Only two of the three important spin-projection orientations, parallel to the x-axis or to the y-axis, are suited to the torus-lattice system. The infinitesimal difference of the free-energies of the systems between the two systems mentioned above makes their critical temperatures infinitely close to each other, but their topological fundamental groups are distinct.
You-gang Feng
Science with the Square Kilometer Array: Motivation, Key Science Projects, Standards and Assumptions
The Square Kilometer Array (SKA) represents the next major, and natural, step in radio astronomical facilities, providing two orders of magnitude increase in collecting area over existing telescopes. In a series of meetings, starting in Groningen, the Netherlands (August 2002) and culminating in a `science retreat' in Leiden (November 2003), the SKA International Science Advisory Committee (ISAC), conceived of, and carried-out, a complete revision of the SKA science case (to appear in New Astronomy Reviews). This preface includes: (i) general introductory material, (ii) summaries of the key science programs, and (iii) a detailed listing of standards and assumptions used in the revised science case.
C. Carilli; S. Rawlings
The Age of the Universe
Globular clusters are the oldest objects in the Galaxy whose age may be accurately determined. As such globular cluster ages provide the best estimate for the age of the universe. The age of a globular cluster is determined by a comparison between theoretical stellar evolution models and observational data. Current uncertainties in the stellar models and age dating process are discussed in detail. The best estimate for the absolute age of the globular clusters is $14.6\\pm 1.7\\,$Gyr. The one-sided, 95\\% confidence limit on the lower age of the universe is $12.2\\,$Gyr.
Brian Chaboyer
Solar-energy-system performance evaluation, Cathedral Square, Burlington, Vermont, July-December 1981
The Cathedral Square solar site is a 10-story multiunit apartment building in Vermont. Its active solar energy system is designed to supply 51% of the hot water load, and consists of 1798 square feet of flat plate collectors, 2699-gallon water tank in an enclosed mechanical room on the roof, and two auxiliary natural gas boilers to supply hot water to immersed heat exchanger in an auxiliary storage tank. The measured solar fraction was only 28%, not 51%, which, it is concluded, is an unreasonable expectation. Other performance data include the solar savings ratio, conventional fuel savings, system performance factor, and solar system coefficient of performance. Monthly performance data are given for the solar system overall, and for the collector, storage, and hot water subsystems. Also included are insolation data, typical storage fluid temperatures, domestic hot water consumption, and solar heat exchangers inlet/outlet temperatures, and typical domestic hot water subsystem temperatures. In addition, the system operating sequence and solar energy utilization are given. Appended are a system description, performance evaluation techniques, long-term weather data. (LEW)
Welch, K.M.
Textures in Polygonal Arrangements of Square Nanoparticles in Nematic Liquid Crystals Matrices
A systematic analysis of defect textures in facetted nanoparticles with polygonal configurations embedded in a nematic matrix is performed using the Landau-de Gennes model, homeotropic strong anchoring in a square domain with uniform alignment in the outer boundaries. Defect and textures are analyzed as functions of temperature T, polygon size R, and polygon number N. For nematic nanocomposites, the texture satisfies a defect charge balance equation between bulk and surface (particle corner) charges. Upon decreasing the temperature, the central bulk defects split and together with other -1/2 bulk defects, are absorbed by the nanoparticle's corners. Increasing the lattice size decreases confinement and eliminates bulk defects. Increasing the polygon number increases the central defect charge at high temperature and the number of surface defects at lower temperatures. The excess energy per particle is lower in even than in odd polygons, and it is minimized for a square particle arrangement. These discrete modeling results show for first time that even under strong anchoring, defects are attached to particles as corner defects, leaving behind a low energy homogeneous orientation field that favors nanoparticle ordering in nematic matrices. These new insights are consistent with recent thermodynamic approaches to nematic nanocomposites that predict the existence of novel nematic/crystal phases and can be used to design nanocomposites with orientational and positional order.
Paul M. Phillips; N. Mei; Ezequiel R. Soule; Linda Reven; Alejandro D. Rey
SHASTA COUNTY The Shasta County Jail is a 115,035 square-foot facility located in Redding. Built in
SHASTA COUNTY The Shasta County Jail is a 115,035 square-foot facility located in Redding. Built in 1984, this facility has an 11-story jail wing attached to a two-story County administrative wing
Efficient Local Error Parameterizations for Square Root or Ensemble Kalman Filters: Application to a Basin-Scale Ocean Turbulent Flow
In large-sized atmospheric or oceanic applications of square root or ensemble Kalman filters, it is often necessary to introduce the prior assumption that long-range correlations are negligible and force them to zero using a local ...
Jean-Michel Brankart; Emmanuel Cosme; Charles-Emmanuel Testut; Pierre Brasseur; Jacques Verron
A Square Prism Urban Canopy Scheme for the NHM and Its Evaluation on Summer Conditions in the Tokyo Metropolitan Area, Japan
A single-layered square prism urban canopy (SPUC) scheme for the Japan Meteorological Agency nonhydrostatic model (NHM) was developed. This scheme considers the urban canopy layer with square prism�shaped buildings. The basic concept of this ...
Toshinori Aoyagi; Naoko Seino
Aging and the labor market
This thesis is a collection of three essays analyzing the interplay between aging and the labor market. The first chapter demonstrates that differential treatment by age exists in labor markets and explores different ...
Lahey, Joanna
Aging in attraction-driven colloidal glasses
Aging in an attraction-driven colloidal glass is studied by computer simulations. The system is equilibrated without attraction and instantaneously ``quenched'', at constant colloid volume fraction, to one of two states beyond the glass transition; one is close to the transition, and the other one deep in the glass. The evolution of structural properties shows that bonds form in the system, increasing the local density, creating density deficits (holes) elsewhere. This process slows down with the time elapsed since the quench. As a consequence of bond formation, there is a slowing down of the dynamics, as measured by the mean squared displacement and the density, bond, and environment correlation functions. The density correlations can be time-rescaled to collapse their long time (structural) decay. The time scale for structural relaxation shows for both quenches a super-linear dependence on waiting time; it grows faster than the bond lifetime, showing the collective origin of the transition. At long waiting times and high attraction strength, we observe {\\rem completely} arrested dynamics for more than three decades in time, although individual bonds are not permanent on this time scale. The localization length decreases as the state moves deeper in the glass; the non-ergodicity parameter oscillates in phase with the structure factor. Our main results are obtained for systems with a barrier in the pair potential that inhibits phase separation. However, when this barrier is removed for the case of a deep quench, we find changes in the static structure but almost none in the dynamics. Hence our results for the aging behavior remain relevant to experiments in which the glass transition competes with phase separation.
Antonio M. Puertas; Matthias Fuchs; Michael E. Cates
Guidance for Developing Baseline and Annual Water Use | Department of
Guidance for Developing Baseline and Annual Water Use Guidance for Developing Baseline and Annual Water Use Guidance for Developing Baseline and Annual Water Use Potable water use intensity is defined as annual potable water use divided by total gross square footage of facility space (gal/ft2). The facility gross square footage is the same value used for energy use intensity reduction goals. Executive Order (E.O.) 13423 requires Federal agencies to develop a potable water use intensity baseline for fiscal year (FY) 2007. Agencies must report total potable water consumption and gross facility square footage against that baseline. To avoid additional reporting requirements, E.O. 13423 does not require agencies to report square footage of irrigated turf or landscape. Potable water used for landscape irrigation must be reported in total potable water
Upgrading Below Grade Spaces: A Look Inside the Remodeling Industry
Below Grade Spaces: Below Grade Spaces: A Look Inside the Remodeling Industry Steve Schirber Cocoon email@example.com How do we insulate a basement? How do we insulate a basement? It all starts with the consumer! What is the Consumer buying and why? What is the Consumer buying and why? 1. Square footage What is the Consumer buying and why? 1. Square footage 2. Finishes What is the Consumer buying and why? 1. Square footage 2. Finishes 3. An experience What is the Consumer buying and why? 1. Square footage 2. Finishes 3. An experience 4. Performance Who does the Consumer buy from and why? Who does the Consumer buy from and why? 1. DIY/Box store Who does the Consumer buy from and why? 1. DIY/Box store 2. Friend/Relative Who does the Consumer buy from
CX-001611: Categorical Exclusion Determination | Department of...
room. - Create a new reception area, lobby, traffic command center, and break room total square footage of 5,400 sq ft). - Create a new 1,600 sq foot mezzanine level to be...
Representation of thermal energy in the design process
The goal of thermal design is to go beyond the comfort zone. In spatial design architects don't just look up square footage requirements and then draw a rectangle that satisfies the givens. There must be an interpretation. ...
Roth, Shaun
2013 NETL CO2 Capture Technology Meeting Sheraton Station Square, Pittsburgh, PA
NETL CO2 Capture Technology Meeting NETL CO2 Capture Technology Meeting Sheraton Station Square, Pittsburgh, PA July 8 - 11, 2013 ION Novel Solvent System for CO 2 Capture FE0005799 Nathan Brown ION Engineering Presentation Outline 2 ION Advanced Solvent Background Project Overview Technology Fundamentals Progress & Current Status Plans for Future Commercialization Acknowledgements ION Engineering Background 3 Mission Statement: Develop new solvents and processes for economic removal of CO 2 from industrial emissions. Markets: Coal-fired flue gas NGCC-fired flue gas Sour gas processing 1 st & 2 nd Generation CO 2 Capture 4 Aqueous MEA Commercial Use Existing Commercial Technology Lateral Transfer of Existing Technology Aqueous MEA
Multivariate analysis of remote LIBS spectra using partial least squares, principal component analysis, and related techniques
Quantitative analysis with LIBS traditionally employs calibration curves that are complicated by the chemical matrix effects. These chemical matrix effects influence the LIBS plasma and the ratio of elemental composition to elemental emission line intensity. Consequently, LIBS calibration typically requires a priori knowledge of the unknown, in order for a series of calibration standards similar to the unknown to be employed. In this paper, three new Multivariate Analysis (MV A) techniques are employed to analyze the LIBS spectra of 18 disparate igneous and highly-metamorphosed rock samples. Partial Least Squares (PLS) analysis is used to generate a calibration model from which unknown samples can be analyzed. Principal Components Analysis (PCA) and Soft Independent Modeling of Class Analogy (SIMCA) are employed to generate a model and predict the rock type of the samples. These MV A techniques appear to exploit the matrix effects associated with the chemistries of these 18 samples.
Clegg, Samuel M [Los Alamos National Laboratory; Barefield, James E [Los Alamos National Laboratory; Wiens, Roger C [Los Alamos National Laboratory; Sklute, Elizabeth [MT HOLYOKE COLLEGE; Dyare, Melinda D [MT HOLYOKE COLLEGE
Nonzero Mean Squared Momentum of Quarks in the Non-Perturbative QCD Vacuum
The non-local vacuum condensates of QCD describe the distributions of quarks and gluons in the non-perturbative QCD vacuum. Physically, this means that vacuum quarks and gluons have nonzero mean-squared momentum, called virtuality. In this paper we study the quark virtuality which is given by the ratio of the local quark-gluon mixed vacuum condensate to the quark local vacuum condensate. The two vacuum condensates are obtained by solving Dyson-Schwinger Equations of a fully dressed quark propagator with an effective gluon propagator. Using our calculated condensates, we obtain the virtuality of quarks in the QCD vacuum state. Our numerical predictions differ from the other theoretical model calculations such as QCD sum rules, Lattice QCD and instanton models.
Zhou, Li-Juan; Ma, Wei-xing
Tube vibration in industrial-size test heat exchanger (90/sup 0/ square layout)
Tube vibrations in heat exchangers are being systematically investigated in a series of tests performed with an industrial-size test exchanger. Results from waterflow tests of eleven different tube bundles, in six- and eight-crosspass configurations on a 90/sup 0/ square layout with a pitch-to-diameter ratio of 1.25 are reported. The test cases include full tube bundles, no-tubes-in-window bundles, finned tube bundles, and proposed field and design fixes. The testing focused on identification of the lowest critical flowrate to initiate fluidelastic instability (large amplitude tube motion) and the location within the bundle of the tubes which first experience instability. The test results are tabulated to permit comparison with results obtained from previous tests with a 30/sup 0/ triangular layout tube bundle. Instability criteria are evaluated preliminarily. Pressure drop data are also generated and reported.
Halle, H.; Wambsganss, M.W.
Quantum anomalous Hall effect with cold atoms trapped in a square lattice
We propose an experimental scheme to realize the quantum anomalous Hall effect in an anisotropic square optical lattice which can be generated from available experimental setups of double-well lattices with minor modifications. A periodic gauge potential induced by atom-light interaction is introduced to give a Peierls phase for the nearest-neighbor site hopping. The quantized anomalous Hall conductivity is investigated by calculating the Chern number as well as the chiral gapless edge states of our system. Furthermore, we show in detail the feasability for its experimental detection through light Bragg scattering of the edge and bulk states with which one can determine the topological phase transition from usual insulating phase to quantum anomalous Hall phase.
Liu, Xiong-Jun; Liu, Xin; Wu, Congjun; Sinova, Jairo
Least squares parameter estimation methods for material decomposition with energy discriminating detectors
Purpose: Energy resolving detectors provide more than one spectral measurement in one image acquisition. The purpose of this study is to investigate, with simulation, the ability to decompose four materials using energy discriminating detectors and least squares minimization techniques. Methods: Three least squares parameter estimation decomposition techniques were investigated for four-material breast imaging tasks in the image domain. The first technique treats the voxel as if it consisted of fractions of all the materials. The second method assumes that a voxel primarily contains one material and divides the decomposition process into segmentation and quantification tasks. The third is similar to the second method but a calibration was used. The simulated computed tomography (CT) system consisted of an 80 kVp spectrum and a CdZnTe (CZT) detector that could resolve the x-ray spectrum into five energy bins. A postmortem breast specimen was imaged with flat panel CT to provide a model for the digital phantoms. Hydroxyapatite (HA) (50, 150, 250, 350, 450, and 550 mg/ml) and iodine (4, 12, 20, 28, 36, and 44 mg/ml) contrast elements were embedded into the glandular region of the phantoms. Calibration phantoms consisted of a 30/70 glandular-to-adipose tissue ratio with embedded HA (100, 200, 300, 400, and 500 mg/ml) and iodine (5, 15, 25, 35, and 45 mg/ml). The x-ray transport process was simulated where the Beer-Lambert law, Poisson process, and CZT absorption efficiency were applied. Qualitative and quantitative evaluations of the decomposition techniques were performed and compared. The effect of breast size was also investigated. Results: The first technique decomposed iodine adequately but failed for other materials. The second method separated the materials but was unable to quantify the materials. With the addition of a calibration, the third technique provided good separation and quantification of hydroxyapatite, iodine, glandular, and adipose tissues. Quantification with this technique was accurate with errors of 9.83% and 6.61% for HA and iodine, respectively. Calibration at one point (one breast size) showed increased errors as the mismatch in breast diameters between calibration and measurement increased. A four-point calibration successfully decomposed breast diameter spanning the entire range from 8 to 20 cm. For a 14 cm breast, errors were reduced from 5.44% to 1.75% and from 6.17% to 3.27% with the multipoint calibration for HA and iodine, respectively. Conclusions: The results of the simulation study showed that a CT system based on CZT detectors in conjunction with least squares minimization technique can be used to decompose four materials. The calibrated least squares parameter estimation decomposition technique performed the best, separating and accurately quantifying the concentrations of hydroxyapatite and iodine.
Le, Huy Q.; Molloi, Sabee [Department of Radiological Sciences, University of California, Irvine, California 92697 (United States)
Math 103L: Matrix Operations (Section 4.4) These problems are a sample of the kinds of problems that may appear on the final
building and lot are larger than the Economy Model. Square footage and costs per square foot are given in square feet. Building cost Lot cost $300 $100 Costs are given in dollars per square foot. The size work College Algebra Exam 7.0 hrs work 1.0 hrs work 2.0 hrs work CSUN CSU, Fullerton Faculty $40 per
Shapiro, Bruce E.
File 1: Summary File File 1: Summary File (CBECS89.A01) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format CASEID Building identifier BLDGID4 1- 5 Census region REGION4 7- 7 $REGION. Census division CENDIV4 9- 9 $CENDIV. Metropolitan statistical area MSA4 11- 11 $MSA. Climate zone CLIMATE4 13- 13 $CLIMAT. B1 Square footage SQFT4 15- 22 MISS8CH. B2 Square footage SQFTC4 24- 25 $SQFTC.
Nonresidential buildings energy consumption survey: 1979 consumption and expenditures. Part 2. Steam, fuel oil, LPG, and all fuels
This report presents data on square footage and on total energy consumption and expenditures for commercial buildings in the contiguous United States. Also included are detailed consumption and expenditures tables for fuel oil or kerosene, liquid petroleum gas (LPG), and purchased steam. Commercial buildings include all nonresidential buildings with the exception of those where industrial activities occupy more of the total square footage than any other type of activity. 7 figures, 23 tables.
Patinkin, L.
Least-squares variational principles and the finite element method: theory, formulations, and models for solid and fluid mechanics
We consider the application of least-squares variational principles and the finite element method to the numerical solution of boundary value problems arising in the fields of solidand fluidmechanics.For manyof these problems least-squares principles offer many theoretical and computational advantages in the implementation of the corresponding finite element model that are not present in the traditional weak form Galerkin finite element model.Most notably, the use of least-squares principles leads to a variational unconstrained minimization problem where stability conditions such as inf-sup conditions (typically arising in mixed methods using weak form Galerkin finite element formulations) never arise. In addition, the least-squares based finite elementmodelalways yields a discrete system ofequations witha symmetric positive definite coeffcientmatrix.These attributes, amongst manyothers highlightedand detailed in this work, allow the developmentofrobust andeffcient finite elementmodels for problems of practical importance. The research documented herein encompasses least-squares based formulations for incompressible and compressible viscous fluid flow, the bending of thin and thick plates, and for the analysis of shear-deformable shell structures.
Pontaza, Juan Pablo
Aging and functional brain networks
Aging is associated with changes in human brain anatomy and function and cognitive decline. Recent studies suggest the aging decline of major functional connectivity hubs in the 'default-mode' network (DMN). Aging effects on other networks, however, are largely unknown. We hypothesized that aging would be associated with a decline of short- and long-range functional connectivity density (FCD) hubs in the DMN. To test this hypothesis, we evaluated resting-state data sets corresponding to 913 healthy subjects from a public magnetic resonance imaging database using functional connectivity density mapping (FCDM), a voxelwise and data-driven approach, together with parallel computing. Aging was associated with pronounced long-range FCD decreases in DMN and dorsal attention network (DAN) and with increases in somatosensory and subcortical networks. Aging effects in these networks were stronger for long-range than for short-range FCD and were also detected at the level of the main functional hubs. Females had higher short- and long-range FCD in DMN and lower FCD in the somatosensory network than males, but the gender by age interaction effects were not significant for any of the networks or hubs. These findings suggest that long-range connections may be more vulnerable to aging effects than short-range connections and that, in addition to the DMN, the DAN is also sensitive to aging effects, which could underlie the deterioration of attention processes that occurs with aging.
Tomasi D.; Tomasi, D.; Volkow, N.D.
Modified TALON Robot Retrofitting the Streetlights in Boise, Idaho Cutting Electricity Costs in Miami-Dade County, Florida How Energy Efficiency is Adding Jobs in St. Paul,...
Response & Procedures or Search Energy.gov Search Clear Filters All Videos Secretary Moniz at Town Hall Forum on Departmental Reorganization Data Jam at New York Energy Week...
Pledge? Conversation on the Future of the Wind Industry Science Lecture: Talking the Higgs Boson with Dr. Joseph Incandela Bill Gates and Deputy Secretary Poneman Discuss the...
Heat Pumps Why Cool Roofs? Chu at COP-16: Building a Sustainable Energy Future Secretary Chu and the 'Sputnik Moment' New Orleans and Energy Efficiency Prev 2 3 4 5 6 7 8 9 10...
--Solar --Wind --Geothermal --Bioenergy -Fossil --Oil --Natural Gas -Nuclear Energy Usage -Storage --Hydrogen & Fuel Cells -Transmission -Consumption -Smart Grid Science...
Self-avoiding trails with nearest neighbour interactions on the square lattice
Self-avoiding walks and self-avoiding trails, two models of a polymer coil in dilute solution, have been shown to be governed by the same universality class. On the other hand, self-avoiding walks interacting via nearest-neighbour contacts (ISAW) and self-avoiding trails interacting via multiply-visited sites (ISAT) are two models of the coil-globule, or collapse transition of a polymer in dilute solution. On the square lattice it has been established numerically that the collapse transition of each model lies in a different universality class. The models differ in two substantial ways. They differ in the types of subsets of random walk configurations utilised (site self-avoidance versus bond self-avoidance) and in the type of attractive interaction. It is therefore of some interest to consider self-avoiding trails interacting via nearest neighbour attraction (INNSAT) in order to ascertain the source for the difference in the collapse universality class. Using the flatPERM algorithm, we have performed computer simulations of this model. We present numerical evidence that the singularity in the free energy of INNSAT at the collapse transition has a similar exponent to that of the ISAW model rather than the ISAT model. This would indicate that the type of interaction used in ISAW and ISAT is the source of the difference in universality class.
A. Bedini; A. L. Owczarek; T. Prellberg
Control and Optimization of Vapor Compression Cycles Using Recursive Least Squares Estimation
Vapor compression cycles are the primary method by which refrigeration and air-conditioning systems operate, and thus constitute a significant portion of commercial and residential building energy consumption. This thesis presents a data-driven approach to find the optimal operating conditions of a multi-evaporator system in order to minimize the energy consumption while meeting operational requirements such as constant cooling or constant evaporator outlet temperature. The experimental system used for controller evaluation is a custom built small-scale water chiller with three evaporators; each evaporator services a separate body of water, referred to as a cooling zone. The three evaporators are connected to a single condenser and variable speed compressor, and feature variable water flow and electronic expansion valves. The control problem lies in development of a control architecture that will minimize the energy consumed by the system without prior information about the system in the form of performance maps, or complex mathematical models. The control architecture explored in this thesis relies on the data collected by sensors alone to formulate a function for the power consumption of the system in terms of controlled variables, namely, condenser and evaporator pressures, using recursive least squares estimation. This cost function is then minimized to attain optimal set points for the pressures which are fed to local controllers.
Rani, Avinash
MSG05 was a study of atmospheric transport and dispersion in the deep urban canyons of Midtown New York City, in the area of Madison Square Garden. This downtown area is considered to be a prime target for terrorist activities, and has one of the largest commuter populations in the world. Little is known about air flow and hazardous gas dispersion in such scenarios, since previous urban field experiments have focused on small to medium sized cities with much smaller street canyons. On March 10 and 14, 2005, a series of Perfluorocarbon Tracer (PFT) tracers were released and tracked with about 30 sampling stations at radial distances of about 0.2 and 0.4 km, with vertical profiles near a 250 m tall building (One Penn Plaza). Meteorological stations collected wind data in the MSG vicinity, at street level and rooftop level. MSG05 is expected to provide useful information on rapid vertical dispersion will assist in planning for more extensive studies. This data release is being made available to a restricted group of key scientists who have worked on the project. Part of the QA program involves feedback from scientists and modelers who are working on this study. This document describes the meteorological component of the project. The file organization and metadata are detailed so that a researcher can work with the data sets.
Accelerated Aging of Roofing Surfaces
Ohio CRRC, Arizona CRRC, Florida CRRC, Ohio 6 | Building Technologies Office eere.energy.gov Approach: develop accelerated aging method Accelerated soiling (atmospheric...
Understanding aging issues in Indonesia.
??This study used combined methods of observations, interviews and document analysis to understand issues related to aging in Indonesia. The study describes relevant policy and� (more)
Napsiyah, Siti.
Compare Activities by Building Age
Activities by Building Age Activities by Building Age Compare Activities by ... Building Age Median Age of Building by Building Type Vacant buildings, retail stores (other than malls), and religious worship buildings tended to be the oldest buildings. Food sales buildings (which were predominantly convenience stores) and outpatient health care buildings were mainly newer buildings. Figure showing median age of building by building type. If you need assistance viewing this page, please call 202-586-8800. Specific questions may be directed to: Joelle Michaels firstname.lastname@example.com CBECS Manager Release date: July 24, 2002 Page last modified: May 4, 2009 2:52 PM http://www.eia.gov/consumption/commercial/data/archive/cbecs/pba99/compareage.html If you are having any technical problems with this site, please contact the EIA
A minimum age of the universe can be estimated directly by determining the age of the oldest objects in the our Galaxy. These objects are the metal-poor stars in the halo of the Milky Way. Recent work on nucleochronology finds that the oldest stars are 15.2+/-3.7 Gyr old. White dwarf cooling curves have found a minimum age for the oldest stars of 8 Gyr. Currently, the best estimate for the age of the oldest stars is based upon the absolute magnitude of the main sequence turn-off in globular clusters. The oldest globular clusters are 11.5+/-1.3 Gyr old, implying a minimum age of the universe of t_universe > 9.5 Gyr (95% confidence level).
A Comparison of Hybrid Ensemble Transform Kalman Filter�Optimum Interpolation and Ensemble Square Root Filter Analysis Schemes
A hybrid ensemble transform Kalman filter (ETKF)�optimum interpolation (OI) analysis scheme is described and compared with an ensemble square root filter (EnSRF) analysis scheme. A two-layer primitive equation model was used under perfect-model ...
Xuguang Wang; Thomas M. Hamill; Jeffrey S. Whitaker; Craig H. Bishop
Least Squares Fitting of Low-Level Gamma-ray Spectra with B-Spline Basis Functions
In this paper, new methods for smoothing gamma-ray spectra measured by NaI detector are derived. Least squares fitting method with B-spline basis functions is used to reduce the influence of statistical fluctuations. The derived procedures are simple and automatic. The results show that this method is better than traditional method with a more complete reduction of staistical fluctuation.
Zhu, M H; You, Z; Xu, A A
Engine ignition signal diagnosis with Wavelet Packet Transform and Multi-class Least Squares Support Vector Machines
Engine ignition pattern analysis is one of the trouble-diagnosis methods for automotive gasoline engines. Based on the waveform of the ignition pattern, the mechanic guesses what may be the potential malfunctioning parts of an engine with his/her experience ... Keywords: Automotive engine ignition pattern diagnosis, Multi-class Least Squares Support Vector Machines, Pattern classification, Wavelet Packet Transform
C. M. Vong; P. K. Wong
Weighted average least squares estimation with nonspherical disturbances and an application to the Hong Kong housing market
The recently proposed 'weighted average least squares' (WALS) estimator is a Bayesian combination of frequentist estimators. It has been shown that the WALS estimator possesses major advantages over standard Bayesian model averaging (BMA) estimators: ... Keywords: Bayesian analysis, Housing demand, Model averaging, Monte Carlo
Jan R. Magnus; Alan T. K. Wan; Xinyu Zhang
Effect of location and orientation of two short dents on ultimate compressive strength of a thin square steel plate
Thin plates are subject to several imperfections (including dents) which reduce the ultimate strength of plates. In this work, nearness effect of two short dents of same size on the ultimate strength of a thin square steel plate is numerically investigated. ...
A. V. Raviprakash; B. Prabu; N. Alagumurthi
Melt index prediction using optimized least squares support vector machines based on hybrid particle swarm optimization algorithm
Melt index (MI) is considered as one of the most important variables of the quality, which determines the product specifications. Thus, a reliable estimation of MI is crucial in the quality control of the practical processes in the propylene polymerization ... Keywords: Ant colony optimization, Immune clone particle swarm optimization, Industrial polypropylene manufacture, Least squares support vector machines, Melt index prediction
Huaqin Jiang, Zhengbing Yan, Xinggao Liu
Generalized Coupling Parameter Expansion: Application to Square-Well and Lennard Jones Fluids
The coupling parameter expansion in thermodynamic perturbation theory of simple fluids is generalized to include the derivatives of bridge function. We applied seventh order version of the theory to Square-Well (SW) and Lennard-Jones (LJ) fluids using Sarkisov Bridge function. In both cases, the theory reproduced the radial distribution functions obtained from integral equation theory (IET) and simulations with good accuracy. Also, the method worked inside the liquid-vapor coexistence region where the IETs are known to fail. In the case of SW fluids, the use of Carnahan-Starling expression for free energy density of Hard-Sphere reference system has improved the liquid-vapor phase diagram (LVPD) over that obtained from IET. We also obtained the surface tension of SW fluids of various ranges. Results of present theory and simulations are in good agreement. In the case of LJ fluids, the equation of state obtained from the present method matched with that obtained from IET with negligible deviation. We also obtained LVPD of LJ fluid from virial and energy routes and found that there is slight inconsistency between the two routes. The applications lead to the following conclusions. In cases where reference system properties are known accurately, the present method gives results which are very much improved over those obtained from the IET with the same bridge function. In cases where reference system data is not available, the method serves as an alternative way of solving the Ornstein-Zernike equation with a given closure relation with the advantage that solution can be obtained throughout the phase diagram with a proper choice of the reference system.
A. Sai Venkata Ramana
The Aging Workforce and Paid Time Off
The Aging Workforce and Paid Time Off Draft 07/08/09 Gilliana matter of the workforce aging as the population ages. Thephysical changes with aging that can affect performance. 10
Lester, Gillian
Gentrifying geriatrics : challenging design paradigms for the aged and aging
Internationally the world is undergoing a grey revolution, with the average age of the human population being higher than it has ever been before. Within the U.S. context this trend is driven by the Baby Boomers, the 80 ...
Van der Linde, Gerhard J. (Gerhard Johan)
Transportation, Aging and Disposal Canister System Performance...
Transportation, Aging and Disposal Canister System Performance Specification: Revision 1 Transportation, Aging and Disposal Canister System Performance Specification: Revision 1...
The purpose of this design calculation is to revise and update the previous criticality calculation for the Aging Facility (documented in BSC 2004a). This design calculation will also demonstrate and ensure that the storage and aging operations to be performed in the Aging Facility meet the criticality safety design criteria in the ''Project Design Criteria Document'' (Doraswamy 2004, Section 220.127.116.11), and the functional nuclear criticality safety requirement described in the ''SNF Aging System Description Document'' (BSC [Bechtel SAIC Company] 2004f, p. 3-12). The scope of this design calculation covers the systems and processes for aging commercial spent nuclear fuel (SNF) and staging Department of Energy (DOE) SNF/High-Level Waste (HLW) prior to its placement in the final waste package (WP) (BSC 2004f, p. 1-1). Aging commercial SNF is a thermal management strategy, while staging DOE SNF/HLW will make loading of WPs more efficient (note that aging DOE SNF/HLW is not needed since these wastes are not expected to exceed the thermal limits form emplacement) (BSC 2004f, p. 1-2). The description of the changes in this revised document is as follows: (1) Include DOE SNF/HLW in addition to commercial SNF per the current ''SNF Aging System Description Document'' (BSC 2004f). (2) Update the evaluation of Category 1 and 2 event sequences for the Aging Facility as identified in the ''Categorization of Event Sequences for License Application'' (BSC 2004c, Section 7). (3) Further evaluate the design and criticality controls required for a storage/aging cask, referred to as MGR Site-specific Cask (MSC), to accommodate commercial fuel outside the content specification in the Certificate of Compliance for the existing NRC-certified storage casks. In addition, evaluate the design required for the MSC that will accommodate DOE SNF/HLW. This design calculation will achieve the objective of providing the criticality safety results to support the preliminary design of the Aging Facility. As the ongoing design evolution remains fluid, the results from this design calculation should be evaluated for applicability to any new or modified design. Consequently, the results presented in this document are limited to the current design. The information contained in this document was developed by Environmental and Nuclear Engineering and is intended for the use of Design and Engineering in its work regarding the various criticality related activities performed in the Aging Facility. Yucca Mountain Project personnel from Environmental and Nuclear Engineering should be consulted before the use of the information for purposes other than those stated herein or use by individuals other than authorized personnel in Design and Engineering.
C.E. Sanders
Plants of the Coal Age
Coal Age Nature Bulletin No. 330-A February 1, 1969 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation PLANTS OF THE COAL...
The age of the universe
An overview of the current controversy on the age of the universe is presented. It is shown that the age of the oldest star, globular clusters, yields an age estimate of approximately 14 {+-} 2 {+-} 2 Gyr (where the first {+-} is statistical and the second systematic, and the two should {ital not} be added in quadrature), with a firm lower bound of {ge} 10 Gyr. It is shown how radioactive dating, nucleocosmochronology, also yields a firm lower bound of {approx_gt} 10 Gyr. The currently favored values for the Hubble constant, when converted to ages using a cosmological model with zero cosmological constant, are shown {ital not} to be in conflict with statistical and systematic uncertainties at the present time when one takes both into account, even for critical density universes. 25 refs. , 3 figs., 1 tab.
Schramm, D.N.
Aging and the prostate gland
Aging and the prostate gland Name: Bobby Lee Location: NA Country: NA Date: NA Question: It seems that as males get older, it takes longer for them to begin urination. Why is...
Control Relay Aging Management Guideline
The concept for this report came from the concern that many control relays have been in service for an extended period of time and an effective aging management program may not be in place for these relays. In addition, recent Institute of Nuclear Power Operations (INPO) data indicate that relays are one of the leading component types causing scrams. With control relay age increasing and relays being a significant contributor to scrams, an evaluation of control relay maintenance and replacement strategie...
Approximate -state Solutions to the Dirac Mobius Square-Yukawa and Mobius Square-quasi Yukawa Problems under Pseudospin and Spin Symmetry limits with Coulomb-like Tensor Interaction
In this paper, we present the Dirac equation for the Mobius-square-Yukawa potentials including the tensor interaction term within the framework of pseudospin and spin symmetry limit with arbitrary spin-orbit quantum number . We obtained the energy eigenvalues and the corresponding wave functions using the supersymmetry method. The limiting cases of this potential model reduce to the Deng-Fan, Yukawa and Coulomb potentials, respectively
Akpan N. Ikot; E. Maghsoodi; Akaninyene D. Antia; S. Zarrinkamar; H. Hassanabadi
Crossover of aging dynamics in polymer glass: from cumulative aging to non-cumulative aging
The aging behavior of polymer glass, poly(methyl methacrylate), has been investigated through the measurement of ac dielectric susceptibility ata fixed frequency after a temperature shift $\\Delta T$ ($\\le $ 20 K)between two temperatures, $T_1$ and $T_2$. A crossover from cumulative aging to non-cumulative aging could be observed with increasing $\\Delta T$ using a twin temperature ($T$-) shift measurement. Based on a growth law of a dynamical coherent length given by activated dynamics, we obtained a unique coherent length for positive and negative $T$-shifts. The possibility of the existence of temperature chaos in polymer glasses is discussed.
Koji Fukao; Sinpei Yamawaki
Domain and Stripe Formation Between Hexagonal and Square Ordered Fillings of Colloidal Particles on Periodic Pinning Substrates
Using large scale numerical simulations, we examine the ordering of colloidal particles on square periodic two-dimensional muffin-tin substrates consisting of a flat surface with localized pinning sites. We show that when there are four particles per pinning site, the particles adopt a hexagonal ordering, while for five particles per pinning site, a square ordering appears. For fillings between four and five particles per pinning site, we identify a rich variety of distinct ordering regimes, including disordered grain boundaries, crystalline stripe structures, superlattice orderings, and disordered patchy arrangements. We characterize the different regimes using Voronoi analysis, energy dispersion, and ordering of the domains. We show that many of the boundary formation features we observe occur for a wide range of other fillings. Our results demonstrate that grain boundary tailoring can be achieved with muffin-tin periodic pinning substrates.
D. McDermott; J. Amelang; L. M. Lopatina; C. J. Olson Reichhardt; C. Reichhardt
A Concatenational Graph Evolution Aging Model
Modeling the long-term face aging process is of great importance for face recognition and animation, but there is a lack of sufficient long-term face aging sequences for model learning. To address this problem, we propose a CONcatenational GRaph Evolution ... Keywords: Aging,Face,Active appearance model,Correlation,Computational modeling,Data models,Muscles,ANOVA,Face aging,aging model evaluation,long-term aging,short-term aging
Jinli Suo; Xilin Chen; Shiguang Shan; Wen Gao; Qionghai Dai
Full length article: Multiresolution wavelet denoising for ultra-wideband time-of-arrival estimation with regularized least squares
Improving accuracy in wireless localization and ranging is a challenging task which often demands an increase in the signal-to-noise ratio (SNR). Impulsive ultra-wideband (UWB) technology is a promising signaling alternative that is capable of high-resolution ... Keywords: Channel estimation, Discrete wavelet transform (DWT), Impulse radio (IR), Ranging, Regularized least squares (RLS), Time-of-arrival (ToA) estimation, Ultra-wideband (UWB), Wavelet denoising (WD)
Ted C. -K. Liu; Xiaodai Dong; Wu-Sheng Lu
This document is available to the public through the National Technical Information Service, Springfield, VA 22161This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. * x.. 2.Gowrnmeti Aecn-io � Mo. TPPUMICAI..... RFPOUTS. TANOARDTITIEP
V. A. Orlando; P. R. Drouilhet; Petitmins Orptiztion Mamandaddru; Proj Tqo; S-r Ag*mcv Mwoamrw
A hybrid model of self-organizing maps (SOM) and least square support vector machine (LSSVM) for time-series forecasting
Support vector machine is a new tool from Artificial Intelligence (AI) field has been successfully applied for a wide variety of problem especially in time-series forecasting. In this paper, least square support vector machine (LSSVM) is an improved ... Keywords: Forecasting, Least square support vector machine, Self-organizing maps, Time series
Shuhaida Ismail; Ani Shabri; Ruhaidah Samsudin
Accelerated aging of roofing surfaces Accelerated aging of roofing surfaces Hugo Destaillats, Ph.D. Lawrence Berkeley National Laboratory email@example.com (510) 486-5897 http://HeatIsland.LBL.gov April 4, 2013 Development of Advanced Building Envelope Surface Materials & Integration of Artificial Soiling and Weathering in a Commercial Weatherometer New York Times, 30 July 2009 2010 2012 Challenge: speed the development of high performance building envelope materials that resist soiling, maintain high solar reflectance, and save energy 2 | Building Technologies Office eere.energy.gov
Fracture, aging and disease in bone
and R. O. Ritchie: Effect of aging on the toughness of humanof microstructure in the aging-related deterioration of thestudy of the effect of aging on human cortical bone J.
Ager, J.W.; Balooch, G.; Ritchie, R.O.
Elucidating mechanisms of accelerated neurological aging
C. (2005). Mechanisms of aging in senescence- accelerated2.2 Strain-specific aging gene-expression profiles�������..C. (2005). Mechanisms of aging in senescence-accelerated
Greenhall, Jennifer Anne
Telomere lengthening to antagonize myocardial aging
targets to antagonize the aging phenotype. FIGURES Figureday Pim-wt. Figure 2.2: Cellular aging markers over time. A.stem cell and myocyte aging, heart failure, and insulin-like
Cottage, Christopher Travis; Cottage, Christopher Travis
Aging and weathering of cool roofing membranes
and L.S. Rose. 2002. �Aging of reflective roofs: sootAging and Weathering of Cool Roofing Membranes HashemNRC), Canada ABSTRACT Aging and weathering can reduce the
Aging of reflective roofs: soot deposition
Aging of reflective roofs: soot deposition Title Aging of reflective roofs: soot deposition Publication Type Journal Article Year of Publication 2002 Authors Berdahl, Paul, Hashem...
Project: Early-Age Performance of Concrete
... at the international workshop "Micro-structure, setting and aging of cement ... Solution Chemistry and Phase Evolution in Early-Age Concrete Materials ...
Effects of Pre-Aging Condition on Multi-Step Aging Behavior in Al ...
However, it is not clear the �multi-step aging� behavior such as pre-aging, natural aging and final aging. In this study, four alloys containing 0.6~1.0mass%Mg�...
TVA's middle-age crisis
Fifty years ago, Franklin D. Roosevelt's corporation clothed with the power of government but possessed of the flexibility and initiative of a private enterprise had a traumatic birth. The Tennessee Valley Authority (TVA) was a unique social and economic experiment designed to improve the quality of life in a 41,000-square-mile, 650-mile-long Tennessee River watershed that was also an economically depressed area. After bringing jobs and prosperity, albeit not without conflict, to the seven states it serves, TVA has fallen on hard times. Its problems command national attention because they often mirror the problems of the nation's electric industry: higher rates, declining demand for electricity, and heavy investment in nuclear power that has not paid off. In addition, TVA suffers from internal squabbles over goals and a past reputation as polluter. TVA's future includes pushing ahead on its seven-year-old program of helping homeowners and businesses conserve energy, continuing the battle to improve the environment (although critics wonder if TVA's recent pro-environment attitude will last), and working to regain the region's old loyalty and belief that TVA is us. 19 references, 2 figures, 3 tables.
Nugent, T.
Insights gained from aging research
The US NRC Office of Nuclear Regulatory Research has implemented hardware-oriented engineering research programs to identify and resolve technical issues related to the aging of systems, structures, and components (SSCs) in operating nuclear power plants. This report provides a summary of those research results which have been compiled and published in NUREGS and related technical reports. The systems, components and structures that have been studied are organized by alphabetical order. The research results summary on the SSCs is followed by an assessment guide to emphasize inspection techniques which may be useful for detecting aging degradation in nuclear power plants. This report will be updated periodically to reflect new research results on these or other SSCs.
Blahnik, D.E.; Casada, D.A.; Edson, J.L.; Fineman, D.L.; Gunther, W.E.; Haynes, H.D.; Hoopingarner, K.R.; Jacobus, M.J.; Jarrell, D.B.; Kryter, R.C.; Magelby, H.L.; Murphy, G.A.; Subudhi, M.M.
Learning long term face aging patterns from partially dense aging databases
Studies on face aging are handicapped by lack of long term dense aging sequences for model training. To handle this problem, we propose a new face aging model, which learns long term face aging patterns from partially dense aging databases. The learning strategy is based on two assumptions: (i) short term face aging pattern is relatively simple and is possible to be learned from currently available databases; (ii) long term face aging is a continuous and smooth Markov process. Adopting a compositional face representation, our aging algorithm learns a function-based short term aging model from real aging sequences to infer facial parameters within a short age span. Based on the predefined smoothness criteria between two overlapping short term aging patterns, we concatenate these learned short term aging patterns to build the long term aging patterns. Both the subjective assessment and objective evaluations of synthetic aging sequences validate the effectiveness of the proposed model. 1.
Jinli Suo; Xilin Chen; Shiguang Shan; Wen Gao
Welding tritium aged stainless steel
Stainless steels exposed to tritium become unweldable by conventional methods due to He buildup within the metal matrix. With longer service lives expected for new weapon systems, and service life extensions of older systems, methods for welding/repair on tritium-exposed material will become important. Results are reported that indicate that both solid-state resistance welding and low-heat gas metal arc overlay welding are promising methods for repair or modification of tritium-aged stainless steel.
Kanne, W.R. Jr.
Acoustic Analysis of Adult Speaker Age
Information about the age of the speaker is always present in speech. It is used as perceptual cues to age by human listeners, and can be measured acoustically and used by automatic age estimators. This chapter offers an introduction to the phonetic ... Keywords: Acoustic analysis, Acoustic correlates, Phonetics, Speaker age
Susanne Sch�tz
Metabolic reprogramming, caloric restriction and aging
Metabolic reprogramming, caloric restriction and aging Rozalyn M. Anderson1,2,3 and Richard) without malnutrition slows the aging process and extends lifespan in diverse species by unknown mechanisms of aging retardation. We herein describe common signatures of CR and suggest how they can slow aging. We
Sheridan, Jennifer
Transfer coefficients for the Gibbs surface in a two-phase mixture in the non-equilibrium square gradient model
In this paper we calculate the transfer coefficients for evaporation and condensation of mixtures. We use the continuous profiles of various thermodynamic quantities through the interface, obtained in our previous works using the square gradient model. Furthermore we introduce the Gibbs surface and obtain the excess entropy production for a surface. Following the traditional non-equilibrium thermodynamic approach we introduce the surface transfer coefficients which we are able to determine from the continuous solution. The knowledge of these coefficients is important for many industrial applications which involve transport through a surface, such as for instance distillation. In our approach the values of the local resistivities in the liquid and the vapor phases are chosen on the basis of experimental values. In the interfacial region there are small peaks in these resistivities. Three amplitudes control the magnitude of these peaks. Possible values of these amplitudes are found by matching the diagonal transfer coefficients to values predicted by kinetic theory. Using these amplitudes we find that the value of the cross resistivities is 1-2 orders of magnitude higher then the one from kinetic theory. The results of both kinetic theory and molecular dynamics simulations support the existence of small peaks in the local resistivities in the interfacial region. The square gradient approach gives an independent way to determine the transfer coefficients for surfaces. The results indicate that kinetic theory underestimates the interfacial transfer coefficients in real fluids.
K. S. Glavatskiy; D. Bedeaux
Lipid Analysis and Lipidomics: New Techniques & ApplicationChapter 15 Infrared Spectroscopy and Partial Least Square Calibration in Simultaneous Quantification of Isolated trans & CLA
Lipid Analysis and Lipidomics: New Techniques & Application Chapter 15 Infrared Spectroscopy and Partial Least Square Calibration in Simultaneous Quantification of Isolated trans & CLA Methods and Analyses eChapters Methods - Analyses Book
Lawn chairs in Times Square : an analysis of the Pilot Streets Program and the provisional project approach for New York City's Green Light in Midtown project
In 2009 the New York City Department of Transportation (NYC DOT) initiated a Pilot Streets Program that called for the temporary closure of Broadway between 47th and 42nd Streets to all vehicular traffic. With Times Square ...
Taylor, Alexis (Alexis Abreu)
A Hybrid MPI�OpenMP Parallel Algorithm and Performance Analysis for an Ensemble Square Root Filter Designed for Multiscale Observations
A hybrid parallel scheme for the ensemble square root filter (EnSRF) suitable for parallel assimilation of multiscale observations, including those from dense observational networks such as those of radar, is developed based on the domain ...
Yunheng Wang; Youngsun Jung; Timothy A. Supinie; Ming Xue
Aging of Pentaerythritol Tetranitrate (PETN)
Pentaerythritol tetranitrate (PETN) is a relatively sensitive explosive used in many electroexplosive devices as well as in medicine. Of primary interest to LLNL is its use in items such as exploding bridgewire (EBW) detonators and exploding bridge foil initiators (EFI). In these devices the crystalline powder is pressed into a granular, low-density compact that can be initiated by an exploding wire or foil. The long-term stability of this pressed compact is of interest to weapon stockpile lifetime prediction studies. Key points about potential aging mechanisms can be summarized as follows: (1) There are a number of factors that can contribute to PETN instability. These include particle size, polymorphic phase transitions, crystal structure, impurities, moisture, occlusions, chemical incompatibility and biological (microorganism) action. of these factors the most important for long-term aging of high surface area powders used in detonators appears to be that of particle size growth. (2) There is a great deal of literature on the thermal degradation kinetics of PETN, unfortunately much of it with little bearing on ambient temperature aging during long-term storage. PETN is very stable with respect to thermal decomposition. Low-temperature thermal studies have not revealed evidence of chemical degradation products in archived PETN. Data extrapolated to 30 C predicts a half-life of 12 million years. (3) Moisture seems to lower the activation energy for and accelerate the decomposition of PETN. (4) External drivers affecting stability include temperature, moisture, radiation fields, and stress, while internal drivers include residual solvents, and impurities. Temperature affects kinetic processes of crystal growth such as adsorption, desorption, and diffusion rates of molecules on the surface of PETN crystals. A low-level radiation field may induce unexpected changes in the chemical makeup of PETN and its homologue impurities. Stress at high pressure points caused by crystalline surface irregularities may cause a decrease in surface area over time due to smoothing of contact points and sintering. PETN has been found to contain a number of impurities, including homologues, pentaerythryl ethers with a mixture of hydroxyl and nitrate functional groups, and organic salts, that can alter its physical and chemical properties. (5) The processes of sublimation/recrystallization and surface diffusion are important processes that can cause changes in PETN crystal morphology, particle size distribution and specific surface area. Sublimation feeds a process called Ostwald ripening, which involves the spontaneous growth of larger crystals from those of smaller size. This process proceeds with age regardless of storage conditions unless the crystals are treated to retard growth. The coarsening mechanisms include Ostwald ripening, 'sintering', and surface diffusion. The latter has not been experimentally observed, but a molecular modeling approach has attempted to investigate this phenomenon theoretically. (6) Threshold test fire, particle size distribution, specific surface area, thermal analysis, chemical analysis, powder compact specific surface area and density are approaches that have been used in the attempt to assess changes attributable to aging of PETN, with varying results. The biggest problem lies in the aging mechanism itself, which likely influences small changes in morphology, both internal and external, and particle size distribution changes on a scale too small to reliably monitor. Other aspects, such as subtle changes in density profiles within pressed powder compacts, may be beyond the capability of current technology to assess. Crystal growth significant enough to affect the PETN particle size distribution is expected to impact detonator performance. (7) Factors relevant to stabilizing particle size growth include crystal morphology, powder surface area and particle size distribution; crystal density and internal defects; and powder compact density and density gradients.
Foltz, M F
The purpose of this system description document (SDD) is to establish requirements that drive the design of the spent nuclear fuel (SNF) aging system and associated bases, which will allow the design effort to proceed. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD follows the design with regard to the description of the system. The description provided in the SDD reflects the current results of the design process. Throughout this SDD, the term aging cask applies to vertical site-specific casks and to horizontal aging modules. The term overpack is a vertical site-specific cask that contains a dual-purpose canister (DPC) or a disposable canister. Functional and operational requirements applicable to this system were obtained from ''Project Functional and Operational Requirements'' (F&OR) (Curry 2004 [DIRS 170557]). Other requirements that support the design process were taken from documents such as ''Project Design Criteria Document'' (PDC) (BSC 2004 [DES 171599]), ''Site Fire Hazards Analyses'' (BSC 2005 [DIRS 172174]), and ''Nuclear Safety Design Bases for License Application'' (BSC 2005 [DIRS 171512]). The documents address requirements in the ''Project Requirements Document'' (PRD) (Canori and Leitner 2003 [DIRS 166275]). This SDD includes several appendices. Appendix A is a Glossary; Appendix B is a list of key system charts, diagrams, drawings, lists and additional supporting information; and Appendix C is a list of procedures that will be used to operate the system.
L.L. Swanson
Mathematical link of evolving aging and complexity
Aging is a fundamental aspect of living systems that undergo a progressive deterioration of physiological function with age and an increase of vulnerability to disease and death. Living systems, known as complex systems, require complexity in interactions among molecules, cells, organs, and individuals or regulatory mechanisms to perform a variety of activities for survival. On this basis, aging can be understood in terms of a progressive loss of complexity with age; this suggests that complexity in living systems would evolve with age. In general, aging dynamics is mathematically depicted by a survival function, which monotonically changes from 1 to 0 with age. It would be then useful to find an adequate survival function to link aging dynamics and complexity evolution. Here we describe a flexible survival function, which is derived from the stretched exponential function by adopting an age-dependent exponent. We note that the exponent is associated with evolving complexity, i.e., a fractal-like scaling in c...
Weon, Byung Mook
Neural Effects of Beta Amyloid in Normal Aging
age � categories. �Neurobiol �Aging �1997; �18: �351-�?7. �JK, �McIntosh �AR. �Aging �gracefully: �compensatory �B. �The �effect �of �normal �aging �on �the �coupling �of �
Mormino, Elizabeth Charlotte
Aging discrepancies of white spruce affect the interpretation of static age structure in boreal
NOTE Aging discrepancies of white spruce affect the interpretation of static age structure. Our objectives were to determine whether ground-level ring counts underestimate root collar age of understory P. glauca and whether aging errors increase with stand age. Trees were collected from one to nine
Macdonald, Ellen
Aging phenomena in polystyrene thin films
The aging behavior is investigated for thin films of atactic polystyrene through measurements of complex electric capacitance. During isothermal aging process the real part of the electric capacitance increases with aging time, while the imaginary part decreases with aging time. This result suggests that the aging time dependence of the real and imaginary parts are mainly associated with change in thickness and dielectric permittivity, respectively. In thin films, the thickness depends on thermal history of aging even above the glass transition. Memory and `rejuvenation' effects are also observed in the thin films.
Koji Fukao; Hiroki Koizumi
Application Of Least Squares And Kriging In Multivariate Optimizations Of Field Development Scheduling And Well Placement Design
This study applied two multivariate interpolation algorithms, Least Squares and Kriging, to interpolate a limited number of data obtained from simulation in order to predict the optimal strategies in a field development scheduling project and a waterflood project with a significant reduction in the simulation efforts required. The two projects were application examples with known answers. The objective of this study was to examine the feasibility and efficiency of multivariate interpolation in solving optimization problems by reducing the simulation effort required. The net present value was used as the objective function in both projects. The field development scheduling simulation was achieved by an economic model taking acount of all the costs and profits during the time period being studied. The waterflooding simulation was achieved by solving the Laplace equation and generating streamlines within the specified pattern. The movements of the waterfrontwere tracked and then the oil a...
A Report; Yan Pan
(COPVs) Materials Aging Issues - Programmaster.org
Three aspects of COPV aging were considered; the age life of the Kevlar overwrap, the fatigue life of the titanium liner and the stress rupture life of the combined�...
CREEP BEHAVIOR AND PHYSICAL AGING INFLUENCE IN PEN FILM. ML Cerrada, GB McKenna. Structure and Mechanics ...
PHYSICAL AGING OF PLASTICIZED POLYMER GLASS. WH Han and GB McKenna, Polymers Division, Building 224, Room ...
Patient/Family Waiting Room Analysis For Susquehanna Health's
for WRMC against others in the industry, the team found that the industry average cost was $1.57 per square objectives included measuring the square footage of the waiting rooms, researching utility costs, utilization foot. This value is less than the WRMC maintenance costs, so the team provided recommendations
Demirel, Melik C.
Presented at the 2001 ACEEE Summer Study on Energy Efficiency in Industry, July 24-27, 2001, Tarrytown, New York, and published in the Proceedings.
for design of new systems. Simple comparisons of energy per square foot are of little value since process represents a significant operating cost for these facilities. Improving energy efficiency in cleanrooms and the cleanroom environmental systems' energy use is increasing due to increases in total square footage
Statistical aging analysis with process variation consideration
As CMOS devices become smaller, process and aging variations become a major issue for circuit reliability and yield. In this paper, we analyze the effects of process variations on aging effects such as hot carrier injection (HCI) and negative bias temperature ... Keywords: HCI, NBTI, aging variation, process variation, reliability
Sangwoo Han; Joohee Choung; Byung-Su Kim; Bong Hyun Lee; Hungbok Choi; Juho Kim
Health Studies: Aging Services Bachelor of Science
Health Studies: Aging Services Bachelor of Science 201213 Degree Map First Year Fall Winter,2 4 PHE 456 4 PHE 410 Business of Aging 4 PHE 454 4 PHE 443 4 SOC 469 or PSY 462 4 PHE PHE 450 4 BA 306, BA 316, or BA 326 4 Senior Capstone 6 SP 447 or PHE 410 Families & Aging
HYGROTHERMAL AGING OF POLYIMIDE MATRIX COMPOSITE LAMINATES John A. Nairn and Man-Hee Han Materials-0560, USA SUMMARY: Two polyimide-matrix systems were subjected to a series of hygrothermal aging experiments at various temperatures and relative humidities. For each aging condition, we measured the microcracking
Nairn, John A.
Careers in Aging Annual Southeastern Student
1 Careers in Aging The 23rd Annual Southeastern Student Mentoring Conference in Gerontology and Geriatrics Keynote Addresses and Poster Abstracts Edited by Christina Barmon #12;2 Careers in Aging The 23rd. This year's conference theme, "Careers in Aging," attracted one of the largest most diverse groups
Arnold, Jonathan
Health Studies: Aging Services Bachelor of Arts
Health Studies: Aging Services Bachelor of Arts 201213 Degree Map First Year Fall Winter PHE 410 Business of Aging 4 PHE 454 4 PHE 456 4 PHE 425 4 PHE 443 4 PHE Approved Elective Capstone 6 SOC 469 or PSY 462 4 SP 447 or PHE 410 Families & Aging 4 PHE Approved Elective 4 PHE
Ensemble Square Root Filters
Ensemble data assimilation methods assimilate observations using state-space estimation methods and low-rank representations of forecast and analysis error covariances. A key element of such methods is the transformation of the forecast ensemble ...
Michael K. Tippett; Jeffrey L. Anderson; Craig H. Bishop; Thomas M. Hamill; Jeffrey S. Whitaker
Kinetics of PBX9404 Aging
PBX 9404 is an early formulation of HMX from which we can learn about the effects of aging in the weapons stockpile. Of particular interest is the presence of 3% nitrocellulose in PBX 9404 as an energetic binder. Nitrocellulose is used pervasively in smokeless gunpowders and was formerly used extensively in the film and art preservation industries. It is well known that nitrocellulose decomposes autocatalytically, and stabilizers, such as the diphenylamine used in PBX 9404, are used to retard its decomposition. Even so, its lifetime is still limited, and the reactions eventually leading to catastrophic autocatalysis are still not understood well despite years of work. In addition to reducing the available energy in the explosive, degradation of nitrocellulose affects the mechanical properties of the pressed PBX 9404 parts by the associated reduction in molecular weight, which reduces the strength of the binder. A structural formula for a monomer of the nitrocellulose used in PBX 9404 is shown. The initial nitration level is 2.3 of 3.0 possible sites, and they have different reactivities. Degradation of nitrocellulose affects many properties. As an aid in examining historical chemical analysis data, several measures of degradation are given for the simple replacement of a nitro group with a hydrogen. The weight percent of nitrocellulose remaining for an initial concentration of 3% as used in PBX 9404 is also given. Of course, the real degradation reaction is more complicated, including chain scission and crosslinking reactions giving other gas species. During the course of this work, we spent considerable time addressing the question, ''Why is PBX 9404 blue?'' There was actually considerable controversy in the color evolution with aging, and the situation was clarified by Ben Richardson at Pantex. Workers there assured us that PBX 9404 starts with an ivory color. Drying the prill prior to pressing turns it a mottled blue, and well-preserved prill samples retain a blue color decades after formulation. Subsequently, heat and light both send it through a progression of colors from grayish blue, blue-green, green, brown, dirty yellow, mottled tan, and eventually pale tan. The progression is accelerated by oxygen and possibly moisture, as has been shown in several accelerated aging studies. The precise compounds causing the color evolution are uncertain, but they are undoubtedly a progression of quinoidal, nitroso, and nitrated DPA compounds. For example, paranitroso DPA is deep blue. Unfortunately, the location of various nitrated DPAs, which ranged from yellow to orange to red to brown and which were used by Pantex as analytical standards in the 1970s, is not currently known. While the color change is indicative of aging, it is by no means a quantitative measure of the extent of nitrocellulose degradation. Inspection of the literature yielded a variety of kinetic models, and the activation energy typically ranges from 25-35 kcal/mol for T<100 C. This literature qualitatively predicts times for 30% decomposition ranging from a few days at 100 C to 1-2 years at 50 C to 50 years at room temperature. To develop a quantitative model, we used the data of Leider and Seaton, which were collected at conditions most closely matching stockpile conditions for any data set we had available. They used PBX 9404 heated as pressed pellets in closed vessels at temperatures ranging from 50 to 100 C for times up to three years, and they report mass loss, gas yield and composition, and chemical analysis of the residual solid by methods used in stockpile surveillance. Initial kinetic analysis of the weight of remaining nitrocellulose as measured by liquid chromatography and the loss of nitrate esters by a colorimetric technique gave an activation energy of 27 kcal/mol. However, the reaction is complex due to the different stability of the three nitroester positions, and this complexity required either parallel first-order reactions or an nth-order reaction (n=3.6), which is mathematically equivalent to a Gamma distribution of frequency factors
Burnham, A K; Fried, L E
Solution to Practice Problems: Linear regression/classification and kNN
,073,750 = 82.65 dollars per square foot Square Footage House Price 800 74,000 1150 110,000 1450 134,000 1600 for the price of a house that is 1000 sq. ft. HP = (10,460.42 dollars) + (82.65 dollars per square foot) * (1000, approximately how much would a house cost if it is 1000 square feet? A best-fit line for this data is shown
Yates, Alexander
Aging Services Program Grants Specialist Division of Aging Services, Livable Communities Section
Aging Services Program Grants Specialist Division of Aging Services, Livable Communities Section Job Description The Georgia Department of Human Services (DHS), Division of Aging Services, is seeking qualified candidates for the position of Aging Services Program Grants Specialist for the Livable
Aging Services Program Administrator Division of Aging Services, Livable Communities Section
Aging Services Program Administrator Division of Aging Services, Livable Communities Section Job Description The Georgia Department of Human Services (DHS), Division of Aging Services, (DAS)is seeking qualified candidates for the position of Aging Services Program Administrator for the Livable Communities
Preliminary Release: April 19, 2012
3 Total Square Footage of Midwest Homes, by Housing Characteristics, 2009" 3 Total Square Footage of Midwest Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total Midwest",25.9,58.9,49.2,35.6 "Midwest Divisions and States" "East North Central",17.9,40.2,33.4,22.9 "Illinois",4.8,10.4,9.1,6.9 "Michigan",3.8,7.5,6,3.7 "Wisconsin",2.3,5.9,4.8,2.9 "Indiana, Ohio",7,16.4,13.6,9.4 "West North Central",8.1,18.7,15.8,12.7 "Missouri",2.3,5.5,4.5,4.1 "IA, MN, ND,SD",3.9,9.5,8.2,5.9
2 Total Square Footage of Northeast Homes, by Housing Characteristics, 2009" 2 Total Square Footage of Northeast Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total Northeast",20.8,44.1,34.5,19.1 "Northeast Divisions and States" "New England",5.5,12.3,9.3,3.4 "Massachusetts",2.5,5.1,3.9,1.7 "CT, ME, NH, RI, VT",3,7.2,5.4,1.8 "Mid-Atlantic",15.3,31.7,25.3,15.7 "New York",7.2,13.2,10.6,4.9 "Pennsylvania",4.9,11,8.4,5.9 "New Jersey",3.2,7.6,6.2,4.9 "Urban and Rural3"
5 Total Square Footage of West Homes, by Housing Characteristics, 2009" 5 Total Square Footage of West Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total West",24.8,42.4,34.2,19.9 "West Divisions and States" "Mountain",7.9,15.2,13.4,8.7 "Mountain North",3.9,8.3,7.3,3.6 "Colorado",1.9,4,3.5,1.4 "Idaho, Montana, Utah, Wyoming",2,4.3,3.8,2.2 "Mountain South",4,7,6.1,5.2 "Arizona",2.3,4.1,3.5,3.5 "New Mexico, Nevada",1.7,2.9,2.6,1.7 "Pacific",16.9,27.2,20.8,11.1
4 Total Square Footage of South Homes, by Housing Characteristics, 2009" 4 Total Square Footage of South Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total South",42.1,78.6,68.9,65.2 "South Divisions and States" "South Atlantic",22.2,43.2,37.5,35.5 "Virginia",3,6.6,5.9,5.4 "Georgia",3.5,8,6.9,6.6 "Florida",7,11.7,10,10.5 "DC, DE, MD, WV",3.4,7.6,6.3,4.9 "North Carolina, South Carolina",5.4,9.4,8.5,8 "East South Central",7.1,13.4,11.8,11 "Tennessee",2.4,4.5,4.1,3.8
6 Total Square Footage of Single-Family Homes, by Housing Characteristics, 2009" 6 Total Square Footage of Single-Family Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total Single-Family",78.6,190.2,157.3,119.5 "Census Region" "Northeast",12.7,36,27.2,15.7 "Midwest",19.2,52.3,43.2,32 "South",29.7,66.4,57.8,54.8 "West",16.9,35.5,29,17.1 "Urban and Rural3" "Urban",57.7,135.1,111.4,84.4 "Rural",20.9,55.2,45.9,35.2 "Metropolitan and Micropolitan" "Statistical Area"
8 Total Square Footage of Mobile Homes, by Housing Characteristics, 2009" 8 Total Square Footage of Mobile Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total Mobile Homes",6.9,7.5,6.8,5.2 "Census Region" "Northeast",0.5,0.5,0.5,0.4 "Midwest",1.1,1.2,1.1,0.6 "South",3.9,4.4,4,3.5 "West",1.4,1.4,1.2,0.7 "Urban and Rural3" "Urban",3.5,3.5,3.2,2.4 "Rural",3.5,4.1,3.6,2.8 "Metropolitan and Micropolitan" "Statistical Area" "In metropolitan statistical area",4.5,4.8,4.3,3.3
7 Total Square Footage of Multi-Family Homes, by Housing Characteristics, 2009" 7 Total Square Footage of Multi-Family Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total Multi-Family",28.1,26.1,22.7,15.1 "Census Region" "Northeast",7.6,7.5,6.8,3.1 "Midwest",5.6,5.4,4.8,2.9 "South",8.4,7.8,7.1,6.9 "West",6.5,5.5,3.9,2.1 "Urban and Rural3" "Urban",26.9,25,21.6,14.3 "Rural",1.2,1.2,1.1,0.7 "Metropolitan and Micropolitan" "Statistical Area"
Total Square Footage of U.S. Homes, by Housing Characteristics, 2009" Total Square Footage of U.S. Homes, by Housing Characteristics, 2009" " Final" ,,"Total Square Footage" ,"Housing Units1","Total2","Heated","Cooled" "Housing Characteristics","Millions","Billions","Billions","Billions" "Total",113.6,223.9,186.8,139.8 "Census Region" "Northeast",20.8,44.1,34.5,19.1 "Midwest",25.9,58.9,49.2,35.6 "South",42.1,78.6,68.9,65.2 "West",24.8,42.4,34.2,19.9 "Urban and Rural3" "Urban",88.1,163.5,136.2,101.1 "Rural",25.5,60.4,50.6,38.7 "Metropolitan and Micropolitan" "Statistical Area"
A Failure of Serendipity: the Square Kilometre Array will struggle to eavesdrop on Human-like ETI
The Square Kilometre Array (SKA) will operate in frequency ranges often used by military radar and other communications technology. It has been shown that if Extraterrestrial Intelligences (ETIs) communicate using similar technology, then the SKA should be able to detect such transmissions up to distances of ~100 pc (~300 light years) from Earth. However, Mankind has greatly improved its communications technology over the last century, dramatically reducing signal leakage and making the Earth "radio quiet". If ETIs follow the same pattern as the human race, will we be able to detect their signal leakage before they become radio quiet? We investigate this question using Monte Carlo Realisation techniques to simulate the growth and evolution of intelligent life in the Galaxy. We show that if civilisations are "human" in nature (i.e. they are only "radio loud" for ~100 years, and can only detect each other with an SKA-like instrument out to 100 pc, within a maximum communication time of 100 years), then the prob...
Forgan, D H
PV water pumping with a peak-power tracker using a simple six-step square-wave inverter
The application of photovoltaics (PVs) has been increasingly popular, especially in remote areas, where power from a utility is not available or is too costly to install. PV-powered water pumping is frequently used for agriculture and in households. Among many available schemes, the system under study consists of a PV array, a variable-frequency inverter, an induction motor, and a water pump. The inverter feeds the induction motor, which drives the water pump. To seek the optimum power output of the PV array, the inverter is operated at variable frequency, to vary the output of the water pump. The inverter is operated to generate a six-step quasi-square wave, instead of a pulsewidth modulated (PWM) voltage output, to reduce the switching losses. The inverter acts as both a variable-frequency source and a peak-power tracker of the system, thus, having the number of switches minimized. The system is a low-cost design, with a simple control strategy. The dc bus is supported by a dc capacitor; thus, a balance-of-power flow must be maintained to avoid the collapse of the dc-bus voltage. Another advantage of the system is that the current is limited to an upper limit of the PV-array current. Thus, in case a short circuit is developed, the motor winding and the power semiconductor switches can be protected against excessive current flow.
Muljadi, E. [National Renewable Energy Lab., Golden, CO (United States)
Rock of Ages | Open Energy Information
of Ages of Ages Jump to: navigation, search Name Rock of Ages Facility Rock of Ages Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Rock of Ages Energy Purchaser Rock of Ages Location Graniteville VT Coordinates 44.14668574°, -72.48180896° 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":44.14668574,"lon":-72.48180896,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Low-Voltage Cable Aging Management Guidance
This report, intended for use by power plant engineers and craft and administrative personnel who are responsible for cable system aging management, provides guidance on the effective and efficient application of current information and techniques related to aging and condition monitoring (CM) of low-voltage cables. The identification of cables that are prone to early aging and the timely replacement or repair of cables that are degraded will minimize unnecessary power losses, unplanned shutdowns, ...
Materials Research in the Information Age
Research in the Information Age Accelerating Advanced Material Development NERSC Science Gateway a 'Google of Material Properties' October 31, 2011 | Tags: Materials Science,...
National Research Council (NRC), Canada ABSTRACT Aging andNational Research Council (NRC) in Canada. The LBNL studyits original levels. The NRC study also included measuring
High pT [p subscript T] nonphotonic electron production in p+p collisions at ?s=200??[square root of s=200] GeV
We present the measurement of nonphotonic electron production at high transverse momentum (pT>2.5??GeV/c) [(p subscript T > 2.5 GeV/c)] in p+p collisions at ?s=200??[square root of s=200] GeV using data recorded during ...
Balewski, Jan T.
Investigation of the Heat Transfer Coefficient of Liquid and Gas Bubble Train Flow in a Square Mini-channel Using Infra-Red thermography
Investigation of the Heat Transfer Coefficient of Liquid and Gas Bubble Train Flow in a Square Mini slug and bubbles, liquid and gas superficial velocities which depend on the volume flow ratio of the channel (Bo) for specific liquid and gas phase. At relatively high Bo (Bo>Bocr1.835) systems gravity force
Khandekar, Sameer
Least squares support vector machines with tuning based on chaotic differential evolution approach applied to the identification of a thermal process
In the past decade, support vector machines (SVMs) have gained the attention of many researchers. SVMs are non-parametric supervised learning schemes that rely on statistical learning theory which enables learning machines to generalize well to unseen ... Keywords: Chaotic differential evolution, Identification, Least squares support vector machines
Glauber Souto dos Santos; Luiz Guilherme Justi Luvizotto; Viviana Cocco Mariani; Leandro dos Santos Coelho
Understanding Aging: A Medical Humanities Approach to �Death in Venice�
issues, understanding aging from a humanistic perspective isattempting to understand aging, I have divided the text intoAschenbach's experience with aging while in Germany. This
English, David
Departure and return : abandonment, memorial and aging in Japan
S. Linhart (Eds. ), Aging Asian Concepts and ExperiencesJ. J. Seeber (Eds. ), .Aging, Spirituality and Religion: AE. (1964). The Psychology of Aging. Englewood Cliffs, N.J. :
Danely, Jason Allen
Successful cognitive aging in persons living with HIV infection
Successful cognitive aging (SCA) was operationally definedrisk factors imposed by aging and HIV, there is considerableuals with HIV who are �aging successfully� (e.g. , free from
The thorny path linking cellular senescence to organismal aging
tumor suppression and organismal aging: Good citizens, badtelomere-directed replicative aging in vitro. Mech. Ageinglung fibroblasts by telomerase. Aging Cell 2, Hayflick, L. ,
Patil, Christopher K.; Mian, Saira; Campisi, Judith
DNA repair: Dynamic defenders against cancer and aging
developmental defects; premature aging; brittle hair; scalypredisposition and premature aging. Acknowledgements. Weagainst cancer and aging Jill O. Fuss and Priscilla K.
Fuss, Jill O.; Cooper, Priscilla K.
File 13: Imputation Flags for Summary Data, Building Activity, File 13: Imputation Flags for Summary Data, Building Activity, Operating Hours, Shell, and Equipment (CBECS89.A13) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format CASEID Building identifier BLDGID4 1- 5 Census region REGION4 7- 7 $REGION. Census division CENDIV4 9- 9 $CENDIV. B2 Square footage SQFTC4 11- 12 $SQFTC. Principal building activity PBA4 14- 15 $ACTIVTY. F3 Year construction was completed YRCONC4 17- 18 $YRCONC. Imputed square footage ZSQFT4 20- 20 $ZVAR.
IMPYR1 Imputed year built $YESNO15. IMPYR1 Imputed year built $YESNO15. IMPYRC1 Imputed year category $YESNO15. IMPPG1 Imputed over 50% glass $YESNO15. IMPPGC1 Imputed over 25/75% glass $YESNO15. IMPNOF1 Imputed number of floors $YESNO15. IMPSF1 Imputed square footage $YESNO15. IMPSFC1 Imputed square footage cat. $YESNO15. IMPNW1 Imputed no. of workers $YESNO15. IMPNWC1 Imputed no. of workers cat. $YESNO15. IMPMON1 Imputed Monday schedule $YESNO15. IMPTUE1 Imputed Tuesday schedule $YESNO15. IMPWED1 Imputed Wednesday schedule $YESNO15.
IMPYR2 Imputed year built $YESNO15. IMPYR2 Imputed year built $YESNO15. IMPYRC2 Imputed year category $YESNO15. IMPPG2 Imputed over 50% glass $YESNO15. IMPPGC2 Imputed over 25/75% glass $YESNO15. IMPNOF2 Imputed number of floors $YESNO15. IMPSF2 Imputed square footage $IMPSF26. IMPSFC2 Imputed square footage cat. $IMPSF26. IMPNW2 Imputed no. of workers $IMPNW19. IMPNWC2 Imputed no. of workers cat. $YESNO15. IMPMON2 Imputed Monday schedule $YESNO15. IMPTUE2 Imputed Tuesday schedule $YESNO15. IMPWED2 Imputed Wednesday schedule $YESNO15.
Failure diagnosis of asymmetric aging under NBTI
Design for reliability is becoming an important step in the design cycle with CMOS technology scaling, demanding need for efficient and accurate reliability simulation methods in the design stage. Traditional aging analysis does not differentiate NBTI ... Keywords: asymmetric aging, design for reliability, negative bias temperature instability, static timing analysis
Jyothi Bhaskarr Velamala; Venkatesa Ravi; Yu Cao
Transcriptional profiling of aging in human muscle reveals a common aging signature
We analyzed expression of 81 normal muscle samples from humans of varying ages, and have identified a molecular profile for aging consisting of 250 age-regulated genes. This molecular profile correlates not only with chronological age but also with a measure of physiological age. We compared the transcriptional profile of muscle aging to previous transcriptional profiles of aging in the kidney and the brain, and found a common signature for aging in these diverse human tissues. The common aging signature consists of six genetic pathways; four pathways increase expression with age (genes in the extracellular matrix, genes involved in cell growth, genes encoding factors involved in complement activation, and genes encoding components of the cytosolic ribosome), while two pathways decrease expression with age (genes involved in chloride transport and genes encoding subunits of the mitochondrial electron transport chain). We also compared transcriptional profiles of aging in humans to those of the mouse and fly, and found that the electron transport chain pathway decreases expression with age in all three organisms, suggesting that this may be a
Jacob M. Zahn; Rebecca Sonu; Hannes Vogel; Emily Crane; Krystyna Mazan-mamczarz; Ralph Rabkin; Ronald W. Davis; Kevin G. Becker; Art B. Owen; Stuart K. Kim
National Interim Energy-Consumption Survey. Part VI. Energy assessment
The goal of energy assessment of the housing unit is to obtain physical information which can be combined with other survey results to give a more complete picture of the residential environment. A limited pretest of an energy assessment procedure was carried out in April-June 1979 with a subsample of 44 households that had been originally interviewed in the National Interim Energy Consumption Survey. In order to gain experience under a variety of environmental conditions, the pretest sites included locations in the Northeast, North Central, and South regions. As developed for the pretest, the energy assessment was a 90-minute inspection of the housing unit by a trained technician. Data collected during the inspection included square footage of the unit; age, make, and characteristics of appliances; insulation characteristics, characteristics of siting and apertures; and detailed information on the heating and cooling systems in the unit. The report describes the data collection procedures for the pretest.
Effect of Composition and Pre-ageing on the Natural Ageing and ...
Presentation Title, Effect of Composition and Pre-ageing on the Natural Ageing ..... Powder Metallurgy of High Strength Al84Gd6Ni7Co3 Gas-atomized Powder.
Falls, Disability and Food Insecurity Present Challenges to Healthy Aging
characteristics. Journal of Aging Health. 2001. 13:329-54.for prevention. Age and Aging. 2006:35 Supplement 2:ii37-Present Challenges to Healthy Aging Steven P. Wallace, L.
Wallace, Steven P.; Molina, L. Cricel; Jhawar, Mona
1. (D. Stone) Among all isosceles triangles with the area of 1 sq. ft., there are two triangles, for which the area of an inscribed square is largest possible. Find these triangles. What is
|BH| = h. If the side of the square DFIG is x, then from similarity of ABC and DBF we obtain |BE| |BH
Kersey, Scott N.
the aging period Can determine absolute age independently of temperature history Suitable for emplacement on circuit boards Numerous commercial ...
Computational Age Dating of Special Nuclear Materials
This slide-show presented an overview of the Constrained Progressive Reversal (CPR) method for computing decays, age dating, and spoof detecting. The CPR method is: Capable of temporal profiling a SNM sample; Precise (compared with known decay code, such a ORIGEN); Easy (for computer implementation and analysis). ? We have illustrated with real SNM data using CPR for age dating and spoof detection. If SNM is pure, may use CPR to derive its age. If SNM is mixed, CPR will indicate that it is mixed or spoofed.
On the stability of stationary age distributions
Age structured nonlinear single species and predator prey population models are treated and a straightforward relatively simple method is shown to arrive at a condition of stability of stationary solutions. Keywords: population dynamics, stability
M. Farkas
Chloride Depletion in Aged Sea Salt Particles
of how they formed, they transform as they are transported by the wind, showing signs of age by increasing in size, chemical complexity, and oxidation, as well as becoming more...
Aging of polymeric composites : a literature review
Due to their increased use in today's society, an extensive survey was undertaken in this report to condense what's been, thus far, discovered as to the effects of aging on polymeric composites. Special emphasis was placed ...
Trevi�o-Garrido, Margie N
International Forum for Reactor Aging Management (IFRAM)
The Nuclear Regulatory Commission has undertaken a program to lay the groundwork for defining proactive actions to manage degradation of materials in light water reactors (LWRs). This article discusses the international forum for reactor aging management.
Bond, Leonard J.
The nearby (d = 7.7 pc) A3V star Fomalhaut is orbited by a resolved dusty debris disk and a controversial candidate extrasolar planet. The commonly cited age for the system (200 {+-} 100 Myr) from Barrado y Navascues et al. relied on a combination of isochronal age plus youth indicators for the K4V common proper-motion system TW PsA. TW PsA is 1.{sup 0}96 away from Fomalhaut and was first proposed as a companion by Luyten, but the physicality of the binarity is worth testing with modern data. I demonstrate that TW PsA is unequivocally a physical stellar companion to Fomalhaut, with true separation 0.280{sup +0.019}{sub -.012} pc (57.4{sup +3.9}{sub -2.5} kAU) and sharing velocities within 0.1 {+-} 0.5 km s{sup -1}-consistent with being a bound system. Hence, TW PsA should be considered 'Fomalhaut B'. Combining modern H-R diagram constraints with four sets of evolutionary tracks, and assuming the star was born with protosolar composition, I estimate a new isochronal age for Fomalhaut of 450 {+-} 40 Myr and mass of 1.92 {+-} 0.02 M{sub Sun }. Various stellar youth diagnostics are re-examined for TW PsA. The star's rotation, X-ray emission, and Li abundances are consistent with approximate ages of 410, 380, and 360 Myr, respectively, yielding a weighted mean age of 400 {+-} 70 Myr. Combining the independent ages, I estimate a mean age for the Fomalhaut-TW PsA binary of 440 {+-} 40 Myr. The older age implies that substellar companions of a given mass are approximately 1 mag fainter at IR wavelengths than previously assumed.
Mamajek, Eric E., E-mail: email@example.com [Cerro Tololo Inter-American Observatory, Casilla 603, La Serena (Chile)
Age problem in holographic dark energy
We study the age problem of the universe with the holographic DE model introduced in [21], and test the model with some known old high redshift objects (OHRO). The parameters of the model have been constrained using the SNIa, CMB and BAO data set. We found that the age of the old quasar APM 08 279+5255 at z = 3.91 can be described by the model.
L. N. Granda; A. Oliveros; W. Cardona
Use of a General Nonlinear Least-Squares Curve Fitting Program with nonclosed form relationships. [GNLS, in FORTRAN for CDC computers
A use for GNLS, a general nonlinear least-squares curve fitting program, is presented. In this use GNLS determines a set of best parameters for relationships that cannot be written in closed form. This program can be useful for experimenters who need to determine experimental parameters by fitting nonclosed-form relationships to experimental data. Two examples are given to indicate how GNLS can be used for this type of problem. 11 figures.
Abey, A.E.
Age identity, gender, and perceptions of decline: Does feeling older lead to pessimistic dispositions about cognitive aging
Objectives. Drawing on past studies of age identity, this article examined whether feeling older was associated with more pessimistic views about cognitive aging. Methods. Using respondents aged 55 years and older in the Midlife Development in the United States study, we estimated a series of linear regression models to predict people � s dispositions toward their cognitive aging. The main comparison is whether the effects of age identity on cognitive aging differ for men and women. Results. Beyond the effects of chronological age, older age identities were associated with more pessimistic dispositions about cognitive aging. This relationship, however, was found only among women. Discussion. Age identity shapes cognitive aging dispositions, though the gendered nature of this relationship remains somewhat unclear. The findings give further evidence about the far-reaching implications of age identity for successful aging and suggest that future work can explicate how subjective aging processes may differ by gender.
Markus H. Schafer
Fatigue and Creep Crack Propagation behaviour of Alloy 617 in the Annealed and Aged Conditions
The crack propagation behaviour of Alloy 617 was studied under various conditions. Elevated temperature fatigue and creep-fatigue crack growth experiments were conducted at 650 and 800 degrees C under constant stress intensity (triangle K) conditions and triangular or trapezoidal waveforms at various frequencies on as-received, aged, and carburized material. Environmental conditions included both laboratory air and characteristic VHTR impure helium. As-received Alloy 617 displayed an increase in the crack growth rate (da/dN) as the frequency was decreased in air which indicated a time-dependent contribution component in fatigue crack propagation. Material aged at 650�C did not display any influence on the fatigue crack growth rates nor the increasing trend of crack growth rate with decreasing frequency even though significant microstructural evolution, including y� (Ni3Al) after short times, occurred during aging. In contrast, carburized Alloy 617 showed an increase in crack growth rates at all frequencies tested compared to the material in the standard annealed condition. Crack growth studies under quasi-constant K (i.e. creep) conditions were also completed at 650 degrees C and a stress intensity of K = 40 MPa9 (square root)m. The results indicate that crack growth is primarily intergranular and increased creep crack growth rates exist in the impure helium environment when compared to the results in laboratory air. Furthermore, the propagation rates (da/dt) continually increased for the duration of the creep crack growth either due to material aging or evolution of a crack tip creep zone. Finally, fatigue crack propagation tests at 800 degrees C on annealed Alloy 617 indicated that crack propagation rates were higher in air than impure helium at the largest frequencies and lowest stress intensities. The rates in helium, however, eventually surpass the rates in air as the frequency is reduced and the stress intensity is decreased which was not observed at 650 degrees C.
Julian K. Benz; Richard N. Wright
Short-Term Aging of Polymer Insulators: Dissection of Samples Aged in a Dry Environment
For many years, the Electric Power Research Institute (EPRI) has performed large-scale aging tests on polymer insulators and has evaluated many polymer insulators that have been removed from service, in an effort to understand what the aging factors are. EPRI has learned that a significant aging factor is corona discharge activity and has therefore developed a test that focuses on how corona discharge activity degrades polymer insulators. This report highlights the latest development of a short-term ...
The Relative Ages of Galactic Globular Clusters
We present a review of the present state of knowledge regarding the relative ages of Galactic globular clusters. First, we discuss the relevant galaxy formation models and describe the detailed predictions they make with respect to the formation timescale and chemical evolution of the globular clusters. Next, the techniques used to estimate globular cluster ages are described and evaluated with particular emphasis on the advantages and disadvantages of each method. With these techniques as a foundation, we present arguments in favor of the following assertions: 1) The age of a globular cluster is the likeliest candidate to be the global second parameter, which along with metal abundance, controls the morphology of the horizonal branch. 2) A total age range of as much as $\\sim$5 Gyr exists among the bulk of the Galactic globulars. 3) There is a significant relation between age and metallicity among the Galactic globular clusters if the slope of the \\mvrr-\\feh relation is less than $\\sim$0.23. These conclusions along with other supporting evidence favor a formation scenario in which the inner regions of the Galactic halo collapsed in a monotonic fashion over a short time period much less than 1 Gyr. In contrast, the outer regions of the halo fragmented and collapsed in a chaotic manner over several Gyrs.
Ata Sarajedini; Brian Chaboyer; Pierre Demarque
Results of LWR snubber aging research
This report describes the aging research results and recommendations for snubbers used in commercial nuclear power plants. Snubbers are safety-related devices used to restrain undesirable dynamic loads at various piping and equipment locations in nuclear power plants (NPPs). Each snubber must accommodate a plant's normal thermal movements and must be capable of restraining the maximum off-normal dynamic loads, such as a seismic event or a transient, postulated for its specific location. The effects of snubber aging and the factors that contribute to the degradation of their safety performance need to be better understood. Thus, Phase II of Nuclear Plant Aging Research was conducted to enhance the understanding of snubber aging and its consequences. Pacific Northwest Laboratory staff and their subcontractors, Lake Engineering and Wyle Laboratories, visited eight sites (encompassing thirteen plants) to conduct interviews with NPP staff and to collect data on snubber aging, testing, and maintenance. The Phase II research methodology, evaluation, results, conclusions, and recommendations are described in the report. Effective methods for service-life monitoring of snubbers are included in the recommendations.
Brown, D P [Lake Engineering Co., Greenville, RI (United States); Werry, E V; Blahnik, D E [Pacific Northwest Lab., Richland, WA (United States)
High Temperature Aging Study on Long-Term Aged Alloy 617 and ...
In order to gain a better understanding of the high-temperature degradation process of these materials, long-term (up to 10000 hours) aging experiments have�...
Property:VolcanicAge | Open Energy Information
Property Property Edit with form History Facebook icon Twitter icon » Property:VolcanicAge Jump to: navigation, search Property Name VolcanicAge Property Type String Description Describes the time of the most recent volcanism by epoch, era, or period per available data. Subproperties This property has the following 7 subproperties: E East Mesa Geothermal Area G Geysers Geothermal Area L Lightning Dock Geothermal Area R Raft River Geothermal Area Roosevelt Hot Springs Geothermal Area S Salton Sea Geothermal Area Soda Lake Geothermal Area Pages using the property "VolcanicAge" Showing 19 pages using this property. A Amedee Geothermal Area + No volcanism + B Beowawe Hot Springs Geothermal Area + no volcanism + Blue Mountain Geothermal Area + no volcanism + Brady Hot Springs Geothermal Area + No volcanism +
Mesoscopic fluctuations and intermittency in aging dynamics
The configurational de-correlation in an aging system is attributed to irreversible intermittent rearrangements, which are described as a Poisson process with average $\\propto \\ln(1 + t/t_w)$, where $t$ is the observation time and $t_w$ is the age [P. Sibani and H.J. Jensen, Europhys. Lett. 69, 2005]. On this basis, we obtain a simple model for the off-equilibrium aging behavior of the autocorrelation: the average autocorrelation decays algebraically, and its shifted and rescaled probability density function (PDF) has a Gumbel-like shape which approaches a Gaussian at large times and becomes sharp in the thermodynamic limit. The model properties are tested against simulations of the Edwards-Anderson spin glass, and are in reasonable agreement with other available data.
Paolo Sibani
The Shapes and Ages of Elliptical Galaxies
In this paper we investigate the relation between the detailed isophotal shape of elliptical galaxies and the strength of the H beta absorption in their spectra. We find that disky galaxies have higher H beta indices. Stellar population synthesis models show that the H beta line is a good age indicator, hence disky galaxies tend to have younger mean ages than boxy galaxies. We show that the observed trend can be brought about by a contaminating young population, which we associate with the disky component. This population need only account for a small fraction of the total mass, for example if a contaminating population of age of 2 Gyrs is superimposed on an old (12 Gyr) elliptical galaxy, then the observed trend can be explained if it contributes only 10% to the total mass. The size of this effect is consistent with the estimates of disk-to-total light ratios from surface photometry.
Roelof S. de Jong; Roger L. Davies
Aging behavior of polymeric solar absorber materials: Aging on the component level
Within this study, the aging behavior of a PPE + PS absorber material was investigated on the absorber component level. To indicate aging, characteristic mechanical values were determined by indentation tests of specimens taken from components and exposed to laboratory aging (140 C in air, 80 C in water) and service near outdoor aging conditions (stagnation in northern climate). In addition to the mechanical tests, the unaged and aged specimens were also characterized thermo-analytically via differential scanning calorimetry (DSC). The results indicate that reductions in both characteristic mechanical values of the indentation tests, i.e., load of the first transition and ultimate indentation, reflect at least some physical aging although chemical aging may also be of importance based on previous analytical investigations of laboratory aged polymer films. While laboratory aging in air at 140 C and service exposure at a test facility in Oslo (N) under stagnation conditions led to a significant reduction in the mechanical indentation resistance, no influence of laboratory aging in water at 80 C on the mechanical behavior of the absorber sheet was found. Depending on the ultimate failure criterion applied (reduction of characteristic mechanical values to 80% and 50%, respectively), the technical service life found for hot air laboratory and stagnation service conditions was found to be less than 51 and 159 h, respectively. As these durations are significantly below the estimated stagnation conditions accumulated in the desired operation lifetime for such a collector, the PPE + PS type investigated does not seem to be a proper material candidate for solar thermal absorbers. Finally, based on the results obtained, a relation between laboratory aging time in air at 140 C and cumulated irradiation energy during exposure on the test facility in Oslo was established. (author)
Kahlen, S. [Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben (Austria); Wallner, G.M.; Lang, R.W. [Institute for Polymeric Materials and Testing, University of Linz, Altenbergerstrasse 69, A-4040 Linz (Austria); Meir, M.; Rekstad, J. [Department of Physics, University of Oslo, P.O. Box 1048, Blindern, N-0316 Oslo (Norway)
Understanding the Emotions of Others: Loss or Gain in Aging?
theory. Psychology and Aging, 7(3), 331-8. Carstensen, L.2007). The Handbook of Aging and Cognition: Third Edition (The Posterior-Anterior Shift in Aging. Cereb. Cortex, 18(5),
Sze, Jocelyn Andrea
Effect of Modified Aging Treatments on the Tensile Properties ...
These include i) lowering the artificial aging temperature ii) interrupted aging cycles similar to T6I4 referred to in the published literature and iii) artificial aging in�...
Aging and Gene Expression in the Primate Brain
Issue 9 | e274 Primate Brain Aging mask ?le for chimpanzee185 p. 2. Harman D (1956) Aging: A theory based on freeThe free radical theory of aging matures. Physiol Rev 78:
Fraser, Hunter B.; Khaitovich, Philipp; Plotkin, Joshua B.; Paabo, Svante; Eisen, Michael B.
Aging and Fracture of Human Cortical Bone and Tooth Dentin
et al. , The effect of aging on crack-growth resistance andR.K. Reprogel, Effects of aging on the mechanical behaviorNalla et al. , Effect of aging on the toughness of human
Ager III, Joel W.
d o - - -700°C after first aging at 745°C /2 hr tween) (nobJ,J". _.J__ __JI (TOTAL) AGING TIME (hr) XBL Figure 22 aALLOYS THROUGH DUAL AGING Annie Ma Inorganic Materials
Ma, Annie
Molecular Clocks: Determining the Age of
Molecular Clocks: Determining the Age of the HumanChimpanzee Divergence Michael I Jensen `molecular clock') allows for the estimation of the time of divergence between modern species, dependent on calibrating the clock with known divergence dates from the fossil record. The molecular clock gives dates
Seaman, Michael I.
Electronic games for aged care and rehabilitation
The declining cognitive and motor abilities has become a major problem in the health care of the elderly, often leading to potentially fatal falls. Current rehabilitation strategies to address this issue include routine physiotherapy which is often dull ... Keywords: aged care, rehabilitation, software agent, video game
Stuart T. Smith; Amir Talaei-Khoei; Mililani Ray; Pradeep Ray
Privacy, Technology, and Aging: A Proposed Framework
the development, adoption, and use of home-based ubiquitous technologies for older adults. We began with a five, adoption, and use of home-based ubiquitous technologies are highly contextual, individualized and aging can inform the development of a privacy framework for home-based technologies that can contribute
Camp, L. Jean
Power Challenges of Large Scale Research Infrastructures: the Square Kilometer Array and Solar Energy Integration; Towards a zero-carbon footprint next generation telescope
The Square Kilometer Array (SKA) will be the largest Global science project of the next two decades. It will encompass a sensor network dedicated to radioastronomy, covering two continents. It will be constructed in remote areas of South Africa and Australia, spreading over 3000Km, in high solar irradiance latitudes. Solar Power supply is therefore an option to power supply the SKA and contribute to a zero carbon footprint next generation telescope. Here we outline the major characteristics of the SKA and some innovation approaches on thermal solar energy Integration with SKA prototypes.
Barbosa, Domingos; Ruiz, Valeriano; Silva, Manuel; Verdes-Montenegro, Lourdes; Santander-Vela, Juande; Maia, Dalmiro; Ant�n, Sonia; van Ardenne, Arnold; Vetter, Matthias; Kramer, Michael; Keller, Reinhard; Pereira, Nuno; Silva, Vitor
Investigations of silica alcogel aging using coherent light
Investigations of silica alcogel aging using coherent light Title Investigations of silica alcogel aging using coherent light Publication Type Journal Article Year of Publication...
Accelerated Aging of Roofing Surfaces | Department of Energy
Accelerated Aging of Roofing Surfaces Accelerated Aging of Roofing Surfaces Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review...
On the Aging Behavior of AA2618 DC Cast Alloy
The aging behavior of the non-deformed alloy at artificial and natural aging conditions was studied. The precipitation characteristics of the alloy were studied by�...
Groundwater Age-Dating for Water Resource Characterization
The LLNL Groundwater Noble Gas Mass Spectrometry Facility and Capability offers: Less model-dependent than tritium age dating: Traditional tritium age ...
The role of glycation in aging and diabetes mellitus
Abstract. One of the hypotheses trying to explain the process of aging is the idea of ... vated blood sugar levels, show signs of accelerated aging exposing similar�...
The Effectiveness of Direct Aging on INCONEL 718 Forgings ...
Direct aging (DA) is a synonym for hardening of an Inconel 718 forging after the fosming operation and applying a two step aging procedure coninion for Inconel
An efficient commerce system Andrew C. Myers
're starting to recreate our relationship with customers and transform our company #12;Smart Meter Business square footage or specified number of occupants, etc. · Include a customer defined notification feature© 2008 San Diego Gas & Electric Company. All copyright and trademark rights reserved. Smart Meters
46 September 2011Vol. 23 No. 3Engineering Management Journal A Budget-SensitiveApproach to Scheduling Maintenance
from the Energy Report filed with SECO semi-annually. Texas Tech is currently in line to achieve our to current energy costs and campus square footage. Utility FY05 Actual % Change Est. Savings Electricity efficiency compared with previous year data. #12;Historical University Vehicle Fleet Efficiency (mpg) MPG 1st
Gosavi, Abhijit
Buildings Energy Data Book: 3.8 Hospitals and Medical Facilities
2 Inpatient Medical Facilities Square Footage, Delivered Energy, Energy Intensity, Selected Years (billion) 1999 1.87 0.43 229.0 2003 1.91 0.48 249.3 2008 2.15 0.45 210.1 2010 2.24...
Managing Aging Effects on Dry Cask Storage
Managing Aging Effects Managing Aging Effects on Dry Cask Storage Systems for Extended Long-Term Storage and Transportation of Used Fuel Rev. 0 Prepared for U.S. Department of Energy Used Fuel Disposition Campaign O.K. Chopra, D. Diercks, R. Fabian, D. Ma, V. Shah, S-W Tam, and Y.Y. Liu Argonne National Laboratory June 30, 2012 FCRD-USED-2012-000119 ANL-12/29 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately
Why could ice ages be unpredictable?
It is commonly accepted that the variations of Earth's orbit and obliquity control the timing of Pleistocene glacial-interglacial cycles. Evidence comes from power spectrum analysis of palaeoclimate records and from inspection of the timing of glacial and deglacial transitions. However, we do not know how tight this control is. Is it, for example, conceivable that random climatic fluctuations could cause a delay in deglaciation, bad enough to skip a full precession or obliquity cycle and subsequently modify the sequence of ice ages? To address this question, seven previously published conceptual models of ice ages are analysed by reference to the notion of generalised synchronisation. Insight is being gained by comparing the effects of the astronomical forcing with idealised forcings composed of only one or two periodic components. In general, the richness of the astronomical forcing allows for synchronisation over a wider range of parameters, compared to periodic forcing. Hence, glacial cycles may conceivably have remained paced by the astronomical forcing throughout the Pleistocene. However, all the models examined here also show a range of parameters for which the structural stability of the ice age dynamics is weak. This means that small variations in parameters or random fluctuations may cause significant shifts in the succession of ice ages if the system were effectively in that parameter range. Whether or not the system has strong structural stability depends on the amplitude of the effects associated with the astronomical forcing, which significantly differ across the different models studied here. The possibility of synchronisation on eccentricity is also discussed and it is shown that a high Rayleigh number on eccentricity, as recently found in observations, is no guarantee of reliable synchronisation.
Michel Crucifix
Search for Supersymmetry Using Final States with One Lepton, Jets, and Missing Transverse Momentum with the ATLAS Detector in ?s=7??[square root of s=7] TeV pp Collisions
This Letter presents the first search for supersymmetry in final states containing one isolated electron or muon, jets, and missing transverse momentum from ?s=7??[square root of s=7] TeV proton-proton collisions at the ...
Taylor, Frank E.
Energy implications of an aging population
This study provides various demographic, medical, and economic information relative to energy usage on a segment of the population, the elderly, which is growing in absolute numbers and relative population percentage. This growth is expected to continue well into the twenty-first century. The US aging population numbered 3.1 million in 1900, and by 1977 it had climbed to 23.5 million. It can be stated with reasonable certainty that this figure will rise to 31 million in the year 2000 and 43 million in the year 2020. These figures, corresponding to more than 10% of our population, are by no means insignificant. As our fossil-fuel reserves are being depleted and the cost of energy mounts, it becomes apparent that the elderly will become increasingly vulnerable to the energy crisis, primarily beause of their physical tendency to infirmity, their economic and social situation, and their susceptibility to psychological depression. This white paper concentrates on those aspects of aging and the nation's energy problem which are not usually related in our everyday consideration of these as separable problems. It seeks to identify the peculiar energy problems of the aged and to consider alternatives in the solution of these problems in light of modern technology.
Aging Studies of VCE Dismantlement Returns
VCE is an ethylene/vinyl acetate/vinyl alcohol terpolymer binder for filled elastomers which is designed to accept high filler loadings. Filled elastomer parts consist of the binder (VCE), a curing agent (Hylene MP, diphenol-4-4{prime}-methylenebis(phenylcarbamate)), a processing aid (LS, lithium stearate), and filler particles (typically 70% fraction by weight). The curing of the filled elastomer parts occurs from the heat-activated reaction between the hydroxyl groups of VCE with the Hylene MP curing agent, resulting in a cross-linked network. The final vinyl acetate content is typically between 34.9 and 37.9%, while the vinyl alcohol content is typically between 1.27 and 1.78%. Surveillance data for this material is both scarce and scattered, complicating the assessment of any aging trends in systems. In addition, most of the initial surveillance efforts focused on mechanical properties such as hardness and tensile strength, and chemical information is therefore lacking. Material characterization and aging studies had been performed on previous formulations of the VCE material but the Ethylene Vinyl Acetate (EVA) starting copolymer is no longer commercially available. New formulations with replacement EVA materials are currently being established and will require characterization as well as updated aging models.
Letant, S; Alviso, C; Pearson, M; Albo, R; Small, W; Wilson, T; Chinn, S; Maxwell, R
On Ocean Transport Diagnostics: The Idealized Age Tracer and the Age Spectrum
The idealized age tracer is commonly used to diagnose transport in ocean models and to help interpret ocean measurements. In most studies only the steady-state distribution, the result of many centuries of model integration, has been presented ...
Timothy M. Hall; Thomas W. N. Haine
Are Refiners Entering a Golden Age or a Short Cycle?
Are Refiners Entering a Golden Age or a Short Cycle? Global Refining Strategies 2007 Barcelona, Spain
Toward Automatic Simulation of Aging Effects on Face Images
The process of aging causes significant alterations in the facial appearance of individuals. When compared with other sources of variation in face images, appearance variation due to aging displays some unique characteristics. For example, aging variation ... Keywords: aging variation, statistical face models, face recognition
A. Lanitis; C. J. Taylor; T. F. Cootes
Absolute Ages of Globular Clusters and the Age of the Universe
The main sequence turnoff luminosity is the best stellar `clock' which can be used to determine the absolute ages of globular clusters. This is due to the fact that it is generally assumed that the luminosity and lifetimes of main sequence globular cluster stars are independent of the properties of stellar convection and atmospheres, two areas of stellar evolution which are poorly understood. Several possible sources of error in this stellar clock are discussed, and isochrones are constructed using a variety of different physical assumptions. The mean age of the oldest globular clusters are determined from these isochrones and it is found that the uncertainties in the input physics can lead to changes in the derived age of $\\pm 15\\%$. Surprisingly the largest source of error is the mixing length theory of convection. It is well known that uncertainties in the distance scale and chemical composition of globular cluster stars lead to changes of order $\\sim 22\\%$ in the determination of absolute ages. Combining the various sources of error, the absolute age of the oldest globular clusters are found to lie in the range 11 --- 21 Gyr. This is meant to be a total theoretical range. For the standard inflationary model ($\\Omega = 1, \\Lambda = 0$), a minimum age of the universe of 11 Gyr requires $H_o \\la 60~\\kmsmpc$.
Aging by epigenetics-A consequence of chromatin damage?
Chromatin structure is not fixed. Instead, chromatin is dynamic and is subject to extensive developmental and age-associated remodeling. In some cases, this remodeling appears to counter the aging and age-associated diseases, such as cancer, and extend organismal lifespan. However, stochastic non-deterministic changes in chromatin structure might, over time, also contribute to the break down of nuclear, cell and tissue function, and consequently aging and age-associated diseases.
Sedivy, John M. [Brown University, Division of Biology and Medicine, Laboratories for Molecular Medicine, 70 Ship Street, Providence, RI 02903 (United States)], E-mail: email@example.com; Banumathy, Gowrishankar [Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111 (United States); Adams, Peter D. [Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111 (United States)], E-mail: firstname.lastname@example.com
Stability of critical bubble in stretched fluid of square-gradient density-functional model with triple-parabolic free energy
The square-gradient density-functional model with triple-parabolic free energy, that was used previously to study the homogeneous bubble nucleation [J. Chem. Phys. 129, 104508 (2008)], is used to study the stability of the critical bubble nucleated within the bulk under-saturated stretched fluid. The stability of the bubble is studied by solving the Schr\\"odinger equation for the fluctuation. The negative eigenvalue corresponds to the unstable growing mode of the fluctuation. Our results show that there is only one negative eigenvalue whose eigenfunction represents the fluctuation that corresponds to the isotropically growing or shrinking nucleus. In particular, this negative eigenvalue survives up to the spinodal point. Therefore the critical bubble is not fractal or ramified near the spinodal.
Masao Iwamatsu; Yutaka Okabe
Applying the Inverse Average Magnitude Squared Coherence Index for Determining Order-Chaos Transition in a System Governed by H�non Mapping Dynamics
The quantitative determination of the order-chaos transition in a nonlinear dynamical system described by H�non mapping defined as x[n + 1] = 1.0 ? A ? x[n] 2 + B ? y[n],y[n + 1] = B ? x[n], where B = 0.3, and A is an adjustable control parameter, was made. This was achieved by applying the Inverse Average Magnitude-Squared Coherence Index (IAMSCI). This method is based on the Welch average periodogram technique and it has the advantage respect to nonlinear dynamical methods that it may be applied to any stationary signal by using discrete Fourier transform (DFT) representation which allows to operate on a short discrete-time series. Its effectiveness was demonstrated by comparing the results obtained by applying IAMSCI
Rub�n Orozco Morales
CFMSQF2N Confirm square feet $YESNO15. CFMSQF2N Confirm square feet $YESNO15. SQFT2 Square footage SQFT15. ALT2N Additions or substantial alterations $YESNO15. ALTSQF2N Add or subtract square footage $ALTSQF15 INSR2M Roof or ceiling insulation $YESNO15. INSW2M Exterior wall insulation $YESNO15. STRIP2 Weather stripping added since 1/1/80 $YESNO15. INSULR2M Insulation added to roof since 1/1/80 $YESNO15. INSULW2M Insulation added to walls since 1/1/80 $YESNO15. ADDGLS2N Conservation glass added since 1/1/80 $YESNO15. ADIN2N Adding insulation to this building $YESNO15. ADINW2N Adding insulation in the walls $YESNO15.
Anti-Oxidants, Omega-3 Fatty Acids, and Cognitive Decline with Aging
neurobiology of cognitive aging�. Ageing Research Reviewsinterventions. Neurobiology of Aging , 133-136. Cutler, R.1991). Antioxidants and aging. American Journal of Clinical
Patel, Tanu Ashok
CLASAdministratorJobAid CostSharing
per square foot from FPM. Pro-rate by percentage of time that the office is used for the project x;CLASAdministratorJobAid CostSharing Preparedby:M.Kuznia8/1/11 Page2 Use of an office: determine square footageCLASAdministratorJobAid CostSharing Preparedby:M.Kuznia8/1/11 Page1 I. Definitions A. Cost
Baskaran, Mark
Aging, phase ordering and conformal invariance
In a variety of systems which exhibit aging, the two-time response function scales as $R(t,s)\\approx s^{-1-a} f(t/s)$. We argue that dynamical scaling can be extended towards conformal invariance, obtaining thus the explicit form of the scaling function $f$. This quantitative prediction is confirmed in several spin systems, both for $T Malte Henkel; Michel Pleimling; Claude Godreche; Jean-Marc Luck 2001-07-13T23:59:59.000Z
Malte Henkel; Michel Pleimling; Claude Godreche; Jean-Marc Luck
Recycling came of age in 1994
While metal and glass recycling have a long history, newer recycling efforts for paper and plastic have gone from a nascent business to maturing industry. After five years, sufficient infrastructure exists to support recycling as a full-fledged business. In the late 1980s, recycling was a business trying to get off the ground. Now it is recognized by many cities and states as a means of economic development and job creation. But recycling`s coming of age was not without growing pains. Many recyclers had to hang on while markets were poor and spotty. Gluts of plastic, waste paper, aluminum, and green glass often made it difficult for recyclers to turn a profit. Until early 1994, prices for most commodities were significantly low, and in some cases, these low prices forced recyclers and processors to close their doors, or at least curtail their operations.
Rabasca, L.
Dark Energy in the Dark Ages
Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or ``reasonable'' canonical scalar fields. Such dark energy can be constrained tightly through investigation of the growth of structure, with limits of \\la2% of total energy density at z\\gg1 for many models. Intermediate dark energy can have effects distinct from its energy density; the dark ages acceleration can be constrained to last less than 5% of a Hubble e-fold time, exacerbating the coincidence problem. Both the total linear growth, or equivalently \\sigma_8, and the shape and evolution of the nonlinear mass power spectrum for zenergy behavior over the entire range z=0-1100.
Eric V. Linder
Differential aging from acceleration, an explicit formula
We consider a clock 'paradox' framework where an observer leaves an inertial frame, is accelerated and after an arbitrary trip comes back. We discuss a simple equation that gives, in the 1+1 dimensional case, an explicit relation between the time elapsed on the inertial frame and the acceleration measured by the accelerating observer during the trip. A non-closed trip with respect to an inertial frame appears closed with respect to another suitable inertial frame. Using this observation we define the differential aging as a function of proper time and show that it is non-decreasing. The reconstruction problem of special relativity is also discussed showing that its, at least numerical, solution would allow the construction of an 'inertial clock'.
E. Minguzzi
Energy age wind ltd Co KG | Open Energy Information
age wind ltd Co KG age wind ltd Co KG Jump to: navigation, search Name energy-age-wind ltd & Co. KG Place Telgte, Germany Zip 48291 Sector Wind energy Product Energy-age-wind aims to develop small scale vertical-axis wind turbines. References energy-age-wind ltd & Co. KG[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. energy-age-wind ltd & Co. KG is a company located in Telgte, Germany . References ↑ "energy-age-wind ltd & Co. KG" Retrieved from "http://en.openei.org/w/index.php?title=Energy_age_wind_ltd_Co_KG&oldid=344826" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version
Space-Age Ceramics Get Their Toughest Test
Space-Age Ceramics Get Their Toughest Test Space-Age Ceramics Get Their Toughest Test Print Wednesday, 17 April 2013 07:23 Advanced ceramic composites can withstand the ultrahigh...
Influence of Thermal Aging on Microstructure and Mechanical ...
The as-aged samples were subject to aging treatment for 1100h and 3000h at 600?, 1100h at 650?, after normalizing at 980? for 30min and tempering at�...
Enzyme Structure Provides Insights into Cancer and Aging
Enzyme Structure Provides Insights into Cancer and Aging Enzyme Structure Provides Insights into Cancer and Aging Print Wednesday, 25 February 2009 00:00 XPD helicase is an enzyme...
Managing Aging Effects on Dry Cask Storage Systems for Extended...
Managing Aging Effects on Dry Cask Storage Systems for Extended Long Term Storage and Transportation of Used Fuel Rev0 Managing Aging Effects on Dry Cask Storage Systems for...
Aging Aluminum Alloy 7085 Mold Blocks Part II: Continuous ... - TMS
Jun 1, 2007 ... Aging Aluminum Alloy 7085 Mold Blocks Part II: Continuous Non-Isothermal Aging by J.T. Staley, Sr., E. Austin, D.B. Glanton, B. Godin, and G.
Aging Aluminum Alloy 7085 Mold Blocks Part 1 - TMS
Jun 1, 2007 ... Aging Aluminum Alloy 7085 Mold Blocks Part 1: Two-Step Aging by J.T. Staley; Sr.; H. Conrad; W. Crill; J. Grossman; and F. Skaria�...
From aging infrastructure to the unaparalleled UPF | Y-12 National...
From aging infrastructure ... From aging infrastructure to the unaparalleled UPF Posted: February 7, 2013 - 6:14pm | Y-12 Report | Volume 9, Issue 2 | 2013 The Uranium Processing...
Authority, polity, and tenuous elites in Iron Age Edom (Jordan)
the Iron Age in southern Jordan (Shef?eld), 47�54. knauf, e.at Tawilan in southern Jordan (Oxford). bienkowski, p.the Iron Age in southern Jordan: A framework. In Bienkowski,
Porter, Benjamin W.
Age Dating of Mixed SNM--Preliminary Investigations
Recently we investigated the nuclear forensics problem of age determination for mixed special nuclear material (SNM). Through limited computational mixing experiments and interactive age analysis, it was observed that age dating results are generally affected by the mixing of samples with different assays or even by small radioactive material contamination. The mixing and contamination can be detected through interactive age analysis, a function provided by the Decay Interaction, Visualization and Analysis (DIVA) software developed by NSTec. It is observed that for mixed SNM with two components, the age estimators typically fall into two distinct clusters on the time axis. This suggests that averaging or other simple statistical methods may not always be suitable for age dating SNM mixtures. Instead, an interactive age analysis would be more suitable for age determination of material components of such SNM mixtures. This work was supported by the National Center for Nuclear Security (NCNS).
Yuan, D., Guss, P. P., Yfantis, E., Klingensmith, A., Emer, D.
Theoretical Uncertainties in the Subgiant--Mass Age Relation and the Absolute Age of Omega Cen
The theoretical uncertainties in the calibration of the relationship between the subgiant mass and age in metal-poor stars are investigated using a Monte Carlo approach. Assuming that the mass and iron abundance of a subgiant star are known exactly, uncertainties in the input physics used to construct stellar evolution models and isochrones lead to a Gaussian 1-sigma uncertainty of +/-2.9% in the derived ages. The theoretical error budget is dominated by the uncertainties in the calculated opacities. Observations of detached double lined eclipsing binary OGLEGC-17 in the globular cluster Omega Cen have found that the primary is on the subgiant branch with a mass of M = 0.809+/-0.012 M_sun and [Fe/H]= -2.29+/-0.15 (Kaluzny et al. 2001). Combining the theoretical uncertainties with the observational errors leads to an age for OGLEGC-17 of 11.10+/-0.67 Gyr. The one-sided, 95% lower limit to the age of OGLEGC-17 is 10.06 Gyr, while the one-sided, 95% upper limit is 12.27 Gyr.
Brian Chaboyer; Lawrence M. Krauss
Atomistic Predictions of Age Hardening in Al-Cu Alloys
Atomic Scale Deformation Mechanisms of Amorphous Polyethylene under Tensile Loading � Atomistic Predictions of Age Hardening in Al-Cu Alloys.
Aging Effects on Craze Growth Under Stress Relaxation ...
Aging Effects on Craze Growth Under Stress Relaxation Conditions. Mats Delin and Gregory B. McKenna, Polymers Division ...
Evolution of local dynamics and mechanical aging in soft ...
... Evolution of local dynamics and mechanical aging in soft solids. James Harden, The Johns Hopkins University. This talk ...
Accelerated Environmental Aging Effects and In-Situ ...
Page 1. Accelerated Environmental Aging Effects and In-Situ Functional Testing of Commercial Photovoltaic Modules T ...
Cable Aging Management Training Course for Low-Voltage Cables
The "EPRI PSE Cable Aging Training Course for Low-Voltage Cables" provides a basis for understanding of the aging of the insulation and jackets of electrical cables used in low-voltage systems. Practical techniques for determining which cables are prone to premature aging and for evaluating their condition are described. The course contains 11 modules. The first 9 modules describe the body of the cable aging management process. The last two modules, "Cable Failure Assessment" and "Performing a Walkdown o...
Transportation, Aging and Disposal Canister System Performance Specification: Revision 1
Energy.gov (U.S. Department of Energy (DOE))
This document provides specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system.
The Changing Face of Healthcare in the Electronic Age
The Changing Face of Healthcare in the Electronic Age Post Hearing Questions Submission by NIST. Question 1: As part ...
http://roa.sagepub.com/ Research on Aging
http://roa.sagepub.com/ Research on Aging http://roa.sagepub.com/content/32/4/499 The online online 5 March 2010Research on Aging Sheila Feld, Ruth E. Dunkle, Tracy Schroepfer and Huei-Wern Shen Spouses Published by: http://www.sagepublications.com can be found at:Research on AgingAdditional services
Wisconsin at Madison, University of
Genetics of Aging in Caenorhabditis elegans Adam Antebi
Review Genetics of Aging in Caenorhabditis elegans Adam Antebi ABSTRACT A dissection of longevity Over the last 20 years, fundamental insights into the biology of aging have emerged through the study, the discovery that the single gene mutants age-1 and daf-2 could extend the short three-week life span 12-fold
Rosenberg, Noah
Time and Aging: A Physicist's Look at Gerontology
CHAPTER 6 Time and Aging: A Physicist's Look at Gerontology Jos Uffink To enter as a physicist physics has lots of interesting things to say about time, it has very little to say about aging. Moreover, the little it has to say about aging has no practical relevance for gerontology. I will avoid trying
Seevinck, Michiel
Designing robotic avatars: are user's impression affected by avatar's age?
This paper explores the relationship between the aging cue of a robotic avatar and the level of intelligence and safety perceived by the elderly as users. This initial study found that the avatar aging cue indeed, affects the elderly in their perception ... Keywords: aging cue, avatar, elderly, embodied agent, interfaces, robotics, user experience
Angie Lorena Marin Mejia; Doori Jo; Sukhan Lee
Aging, Estrogen Loss and Epoxyeicosatrienoic Acids Alison R. Lee1.
Aging, Estrogen Loss and Epoxyeicosatrienoic Acids (EETs) Alison R. Lee1. , Angela S. Pechenino1 loss, caused by menopause, and aging have inflammatory consequences. Epoxyeicosatrienoic acids (EETs cyclooxygenases and lipoxygenases. We hypothesized that aging and estrogen loss would reduce levels of anti
Hammock, Bruce D.
CALIFORNIA ENERGY COMMISSION THE ROLE OF AGING AND ONCE-THROUGH-COOLED POWER PLANTS IN CALIFORNIA Nyberg, Darryl Metz, Connie Leni. 2009. The Role of Aging and Once-Through-Cooled Power Plants .................................................................................................................5 CHAPTER 2: California's Aging and Once-Through-Cooled Plants
Minute Effects of Sex on the Aging Brain: A Multisample Magnetic Resonance Imaging Study of Healthy Aging and Alzheimer's Disease
Age is associated with substantial macrostructural brain changes. While some recent magnetic resonance imaging studies have reported larger age effects in men than women, others find no sex differences. As brain morphometry ...
Fjell, Anders M.
Extruded Dielectrics for Transmission Cables: Evaluation of Aging Models
One of the tasks proposed at the 2002 EPRI workshop on the aging of extruded transmission cables was to evaluate three recently developed theoretical aging models of electrical insulation. The three models were (1) the Thermodynamic Model of Aging of Extruded Insulation by J.P. Crine; (2) the Space Charge Aging Model by L.A. Dissado, G. Mazzanti, and G.C. Montanari (DMM); and (3) the Electromechanical Aging Model by T.J. Lewis. These three models are considered to be significant improvements over the emp...
The Sandia MEMS Passive Shock Sensor : dormancy and aging.
This report presents the results of an aging experiment that was established in FY09 and completed in FY10 for the Sandia MEMS Passive Shock Sensor. A total of 37 packages were aged at different temperatures and times, and were then tested after aging to determine functionality. Aging temperatures were selected at 100 C and 150 C, with times ranging from as short as 100 hours to as long as 1 year to simulate a predicted aging of up to 20 years. In all of the tests and controls, 100% of the devices continued to function normally.
Baker, Michael Sean; Tanner, Danelle Mary
The bronze age shipwreck at Sheytan Deresi
During the fall of 1973, the newly formed (American) Institute of Nautical Archaeology conducted its first systematic underwater survey of the southwestern coast of Turkey with the goal of locating the first shipwreck to be subsequently excavated by the Institute. Of the 18 wreck sites identified during the survey, a site off Sheytan Deresi (Devil�s Creek) proved to be the one that attracted George Bass, director of the survey, as most meriting further study. During the excavation that followed in September and October 1975, the site produced a number of complete and fragmentary ceramic vessels that formed the main artifact assemblage. Although the ceramic vessels brought to light at Sheytan Deresi have been studied by George Bass, Roxani Margariti and others since the 1975 excavation, locating precise parallels for the assemblage proved a difficult task and resulted in a less than full understanding of the site. The following thesis represents a renewed effort to answer a number of questions still surrounding the Sheytan Deresi site. In addition to expanding the extensive search for parallels undertaken by Bass and Margariti, recent research has involved a number of scientific analyses, including petrographic analysis of the ceramic assemblage, luminescence dating of ceramic fragments, and elemental examination of the fabric through neutron activation analysis and energy dispersive spectroscopy. The use of three-dimensional modeling has been adopted for the purposes of site interpretation. Although the impact of this more holistic approach cannot be entirely foreseen at this time, a number of interesting hypotheses regarding the site can now be suggested. It appears that the ceramic assemblage, which is now conclusively of a single origin, may be of a specialized maritime nature, and likely belongs to the Middle Bronze Age, reminiscent of, but entirely similar to, regional types of Anatolian and Cretan vessels. These tentative conclusions, as well as an examination of the site itself, suggest that the (Minoanizing) ceramic assemblage of Sheytan Deresi stood witness to a fairly small Middle Bronze Age coastal trading vessel that capsized rounding a dangerous cape, not far from its point of origin. We are still not in a position to fully comprehend the wrecking event that took place at Sheytan Deresi, but we are now firmly on course towards reaching that objective.
Catsambis, Alexis
Critical cavity in the stretched fluid studied using square-gradient density-functional model with triple-parabolic free energy
The generic square-gradient density-functional model with triple-parabolic free energy is used to study the stability of a cavity introduced into the stretched liquid. The various properties of the critical cavity, which is the largest stable cavity within the liquid, are compared with those of the critical bubble of the homogeneous bubble nucleation. It is found that the size of the critical cavity is always smaller than that of the critical bubble, while the work of formation of the former is always higher than the latter in accordance with the conjectures made by Punnathanam and Corti [J. Chem. Phys. {\\bf 119}, 10224 (2003)] deduced from the Lennard-Jones fluids. Therefore their conjectures about the critical cavity size and the work of formation would be more general and valid even for other types of liquid such as metallic liquid or amorphous. However, the scaling relations they found for the critical cavity in the Lennard-Jones fluid are marginally satisfied only near the spinodal.
Masao Iwamatsu
Weldable, age hardenable, austenitic stainless steel
An age hardenable, austenitic stainless steel having superior weldability properties as well as resistance to degradation of properties in a hydrogen atmosphere is described. It has a composition of from about 24.0 to about 34.0 weight percent (w/o) nickel, from about 13.5 to about 16.0 w/o chromium, from about 1.9 to about 2.3 w/o titanium, from about 1.0 to about 1.5 w/ o molybdenum, from about 0.01 to about 0.05 w/o carbon, from about 0 to about 0.25 w/o manganese, from about 0 to about 0.01 w/o phosphorous and preferably about 0.005 w/o maximum, from about 0 to about 0.010 w/o sulfur and preferably about 0.005 w/o maximum, from about 0 to about 0.25 w/o silicon, from about 0.1 to about 0.35 w/o aluminum, from about 0.10 to about 0.50 w/o vanadium, from about 0 to about 0.0015 w/o boron, and the balance essentially iron. (auth)
Brooks, J.A.; Krenzer, R.W.
Aging and weathering can reduce the solar reflectance of cool roofing materials. This paper summarizes laboratory measurements of the solar spectral reflectance of unweathered, weathered, and cleaned samples collected from single-ply roofing membranes at various sites across the United States. Fifteen samples were examined in each of the following six conditions: unweathered; weathered; weathered and brushed; weathered, brushed and then rinsed with water; weathered, brushed, rinsed with water, and then washed with soap and water; and weathered, brushed, rinsed with water, washed with soap and water, and then washed with an algaecide. Another 25 samples from 25 roofs across the United States and Canada were measured in their unweathered state, weathered, and weathered and wiped. We document reduction in reflectivity resulted from various soiling mechanisms and provide data on the effectiveness of various cleaning approaches. Results indicate that although the majority of samples after being washed with detergent could be brought to within 90% of their unweathered reflectivity, in some instances an algaecide was required to restore this level of reflectivity.
Akbari, Hashem; Berhe, Asmeret A.; Levinson, Ronnen; Graveline,Stanley; Foley, Kevin; Delgado, Ana H.; Paroli, Ralph M.
Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV
We have performed a search for the production of the standard model Higgs boson decaying to diphotons in pp collisions at the LHC at [square root of]s = 7-8 TeV with the CMS detector. Having analyzed data corresponding to ...
Bendavid, Joshua Lorne
Inverse determination of the penalty parameter in penalized weighted least-squares algorithm for noise reduction of low-dose CBCT
Purpose: A statistical projection restoration algorithm based on the penalized weighted least-squares (PWLS) criterion can substantially improve the image quality of low-dose CBCT images. The performance of PWLS is largely dependent on the choice of the penalty parameter. Previously, the penalty parameter was chosen empirically by trial and error. In this work, the authors developed an inverse technique to calculate the penalty parameter in PWLS for noise suppression of low-dose CBCT in image guided radiotherapy (IGRT). Methods: In IGRT, a daily CBCT is acquired for the same patient during a treatment course. In this work, the authors acquired the CBCT with a high-mAs protocol for the first session and then a lower mAs protocol for the subsequent sessions. The high-mAs projections served as the goal (ideal) toward, which the low-mAs projections were to be smoothed by minimizing the PWLS objective function. The penalty parameter was determined through an inverse calculation of the derivative of the objective function incorporating both the high and low-mAs projections. Then the parameter obtained can be used for PWLS to smooth the noise in low-dose projections. CBCT projections for a CatPhan 600 and an anthropomorphic head phantom, as well as for a brain patient, were used to evaluate the performance of the proposed technique. Results: The penalty parameter in PWLS was obtained for each CBCT projection using the proposed strategy. The noise in the low-dose CBCT images reconstructed from the smoothed projections was greatly suppressed. Image quality in PWLS-processed low-dose CBCT was comparable to its corresponding high-dose CBCT. Conclusions: A technique was proposed to estimate the penalty parameter for PWLS algorithm. It provides an objective and efficient way to obtain the penalty parameter for image restoration algorithms that require predefined smoothing parameters.
Wang, Jing; Guan, Huaiqun; Solberg, Timothy [Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, Texas 75390 (United States); Department of Radiation oncology, Sylvester Comprehensive Cancer Center, University of Miami Medical School, Florida 33136 (United States); Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, Texas 75390 (United States)
Cast Stainless Steel Aging Research Plan | Department of Energy
Cast Stainless Steel Aging Research Plan Cast Stainless Steel Aging Research Plan Cast Stainless Steel Aging Research Plan This work plan proposes to build a systematic knowledge base for the thermal aging behavior of cast stainless steels (CASSs) within a limited time of five years. The final output of execution of the plan is expected to provide conclusive predictions for the integrity of the CASS components of LWR power plants during the extended service life up to and beyond 60 years. Mechanical and microstructural data obtained through accelerated aging experiment and computational simulation will be the key input for the prediction of CASS behaviors and for the integrity analyses for various CASS components. While the accelerated aging experiment and computational simulation results will comprise the main components of the knowledge base
Chelation: A Fundamental Mechanism of Action of AGE Inhibitors, AGE Breakers, and Other Inhibitors of Diabetes Complications
Advanced glycation or glycoxidation end-products (AGE) increase in tissue proteins with age, and their rate of accumulation is increased in diabetes, nephropathy and inflammatory diseases. AGE inhibitors include a range of compounds that are proposed to act by trapping carbonyl and dicarbonyl intermediates in AGE formation. However, some among the newer generation of AGE inhibitors lack reactive functional groups that would trap reaction intermediates, indicating an alternative mechanism of action. We propose that AGE inhibitors function primarily as chelators, inhibiting metal-catalyzed oxidation reactions. The AGE-inhibitory activity of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers is also consistent with their chelating activity. Finally, compounds described as AGE breakers, or their hydrolysis products, also have strong chelating activity, suggesting that these compounds also act through their chelating activity. We conclude that chelation is the common, and perhaps the primary, mechanism of action of AGE inhibitors and breakers, and that chronic, mild chelation therapy should prove useful in treatment of diabetes and age-related diseases characterized by oxidative stress, inflammation and increased chemical modification of tissue proteins by advanced glycoxidation and lipoxidation end-products.
Nagai, Rhoji; Murray, David B.; Metz, Thomas O.; Baynes, John
In search of information on websites: a question of age?
To fight against info-exclusion in an aging society, it is important to make website information available to all generations. If we want to achieve this goal we need to know the impact of not only age but also gender, educational background and frequency ... Keywords: age differences, digital immigrants, digital natives, digital spectrum, digitalgap, eye-tracking, information search behaviour, navigation patterns, usability, web design
Eug�ne Loos
Aging, Fragility and Reversibility Window in Bulk Alloy Glasses
Non-reversing relaxation enthalpies (DHnr) at glass transitions Tg(x) in the PxGexSe1-2x ternary display wide, sharp and deep global minima (~ 0) in the 0.09 age, in contrast to aging observed for fragile glass compositions outside the window. Thermal reversibility and lack of aging seem to be paradigms of self-organization which molecular glasses share with protein structures which repetitively and reversibly change conformation near Tg and the folding temperature respectively.
S. Chakravarty; D. G. Georgiev; P. Boolchand; M. Micoulaut
A Review of Equipment Aging Theory and Technology
Reviews the theory and technology of equipment aging particularly as they relate to the qualification of safety-system equipment for nuclear power generating stations.
Plant Engineering: Cable Aging Management Program Implementation Guidance
This report describes issues identified during the initial implementation of low- and medium-voltage cable aging management programs by utilities and presents possible resolutions and guidance.
Age Inversiones in Media Ambiente AIMA | Open Energy Information
Product Invests in projects that aim to generate energy from biodegradable residues and waste. References Age Inversiones in Media Ambiente (AIMA)1 LinkedIn Connections...
Cosmic age problem revisited in the holographic dark energy model
Because of an old quasar APM 08279 + 5255 at $z=3.91$, some dark energy models face the challenge of the cosmic age problem. It has been shown by Wei and Zhang [Phys. Rev. D {\\bf 76}, 063003 (2007)] that the holographic dark energy model is also troubled with such a cosmic age problem. In order to accommodate this old quasar and solve the age problem, we propose in this paper to consider the interacting holographic dark energy in a non-flat universe. We show that the cosmic age problem can be eliminated when the interaction and spatial curvature are both involved in the holographic dark energy model.
Cui, Jinglei
PROPOSAL Characterization of Field and Lab Aged Cables
DoE Peer Review Nov 2010 2 * Underground cable system infrastructure is complex and aging. * Failures are increasing * If not addressed then old infrastructure will not support...
Precipitates in Long Term Aging Al 5083 Alloy
Presentation Title, Precipitates in Long Term Aging Al 5083 Alloy. Author(s), Gaosong Yi. On-Site Speaker (Planned), Gaosong Yi. Abstract Scope, Al 5083 alloy�...
Two-Sensor System for Absolute Age and Temperature History
absolute age and/or temperature history of a device or system starting from the time it is assembled or commissioned. Ideally this information could ...
Effects of Aging Parameters on the Mechanical Properties in Corson ...
In the present study, the influences of solution treatments, prior cold drawings and aging treatments on mechanical properties in Corson alloy with high�...
Signatures of Dynamic Strain Aging � The Mechanical Threshold ...
At elevated temperatures, but even at temperatures well below one-half the melting point, dynamic strain aging (DSA) can influence the stress-strain curve in
TIP Project Brief 090060 Robotic Rehabilitation of Aging ...
... most of which, unfortunately, are aging and in ... reinforced polymers for civil infrastructure rehabilitation; the ... the East Bay Municipal Utility District; the ...
Aging, Generations, and the Development of Partisan Polarization in the United States
Alwin, Duane F. 1994. "Aging, Personality, and SocialDuane F. Alwin. 1989. "Aging and Susceptibility to AttitudeAging, Generations, and the Development of Partisan
Stoker, Laura; Jennings, M. Kent
Aging Impacts Transcriptome but not Genome of Hormone-dependent Breast Cancers
biological basis linking aging with sporadic breast cancerTranslational Research at the Aging and Cancer Interface.Changes Associated with Aging. Cancer Res 2004, 64:8550-
Additive effects of aging and HIV infection on category verbal fluency : an analysis of component processes
E. B. (2003). Alcohol, aging, and cognitive performance: Acomparison. Journal of Aging and Health, 15, 371-390.2006). Neural plasticity in the aging brain. Nature Reviews
Iudicello, Jennifer E.
Nuclear power plant Generic Aging Lessons Learned (GALL). Appendix B
The purpose of this generic aging lessons learned (GALL) review is to provide a systematic review of plant aging information in order to assess materials and component aging issues related to continued operation and license renewal of operating reactors. Literature on mechanical, structural, and thermal-hydraulic components and systems reviewed consisted of 97 Nuclear Plant Aging Research (NPAR) reports, 23 NRC Generic Letters, 154 Information Notices, 29 Licensee Event Reports (LERs), 4 Bulletins, and 9 Nuclear Management and Resources Council Industry Reports (NUMARC IRs) and literature on electrical components and systems reviewed consisted of 66 NPAR reports, 8 NRC Generic Letters, 111 Information Notices, 53 LERs, 1 Bulletin, and 1 NUMARC IR. More than 550 documents were reviewed. The results of these reviews were systematized using a standardized GALL tabular format and standardized definitions of aging-related degradation mechanisms and effects. The tables are included in volume s 1 and 2 of this report. A computerized data base has also been developed for all review tables and can be used to expedite the search for desired information on structures, components, and relevant aging effects. A survey of the GALL tables reveals that all ongoing significant component aging issues are currently being addressed by the regulatory process. However, the aging of what are termed passive components has been highlighted for continued scrutiny. This report consists of Volume 2, which consists of the GALL literature review tables for the NUMARC Industry Reports reviewed for the report.
Kasza, K.E.; Diercks, D.R.; Holland, J.W.; Choi, S.U. [and others
Natural Versus Artificial Aging of Nuclear Power Plant Components
Examination of test specimens, placed in eight operating reactors during this study, will provide information on the long-term aging effects of plant environments on cabling and electrical components. Material property data, when compared with measured degradation in artificially aged specimens, will help improve predictions of the safe, useful life of plant equipment.
Twin boundary cavitation in aged type 304 stainless steel
A transition from grain to twin boundary cavitation was observed in aged- and-creep-tested type 304 stainless steel. Evidence of twin boundary cavitation has also been observed for unaged material under certain test conditions. This same behavior was also found in aged type 316 stainless steel. Several possible reasons have been suggested for the absence of frequently observed grain boundary cavitation. (auth)
Sikka, V.K.; Swindeman, R.W.; Brinkman, C.R.
The effect of chrome adhesion layer on quartz resonator aging.
This SAND report documents a late start LDRD designed to determine the possible aging effects of a quartz resonator gold adhesion layer. Sandia uses quartz resonators for applications. These applications require a very stable frequency source with excellent aging (low drift) characteristics. These parts are manufactured by one of our qualified vendors outside Sandia Laboratories, Statek Corp. Over the years we, Sandia and the vendor, have seen aging variations that have not been completely explained by the typical mechanisms known in the industry. One theory was that the resonator metallization may be contributing to the resonator aging. This LDRD would allow us to test and analyze a group of resonators with known differentiating metallization and via accelerated aging determine if a chrome adhesion layer used to accept the final gold plating may contribute to poor aging. We worked with our main vendor to design and manufacture a set of quartz resonators with a wide range of metallization thickness ratios between the chrome and gold that will allow us determine the cause of this aging and which plating thickness ratios provide the best aging performance while not degrading other key characteristics.
Wessendorf, Kurt O.; Ohlhausen, James Anthony
Aging and user disfunctionings: implications for information system design
Researches in ergonomics are carried out on factors of work inducing a premature ageing or pathologies, with the purpose of designing or improving workplaces, devices and organisations less noxious for the health or more compatible with possible handicaps ... Keywords: ageing, elderly, ergonomics
Jean-Claude Sperandio
The effects of aging on BWR core isolation cooling systems
A study was performed to assess the effects of aging on the Reactor Core Isolation Cooling (RCIC) system in commercial Boiling Water Reactors (BWRs). This study is part of the Nuclear Plant Aging Research (NPAR) program sponsored by the US Nuclear Regulatory Commission. The objectives of this program are to provide an understanding of the aging process and how it affects plant safety so that it can be properly managed. This is one of a number of studies performed under the NPAR program which provide a technical basis for the identification and evaluation of degradation caused by age. The failure data from national databases, as well as plant specific data were reviewed and analyzed to understand the effects of aging on the RCIC system. This analysis identified important components that should receive the highest priority in terms of aging management. The aging characterization provided information on the effects of aging on component failure frequency, failure modes, and failures causes. Current inspection, surveillance, and monitoring practices were also reviewed.
Lee, B.S. [Brookhaven National Lab., Upton, NY (United States)
Enzyme Structure Provides Insights into Cancer and Aging Print Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism that maintains the integrity of DNA. XPD is unique, however, in that pinpoint mutations of this single protein are responsible for three different human diseases: in xeroderma pigmentosum (XP), extreme sensitivity to sunlight promotes cancer; Cockayne syndrome (CS) involves stunted growth and premature aging; trichothiodystrophy (TTD), characterized by brittle hair and scaly skin, is another form of greatly accelerated aging. At the ALS, researchers from Berkeley Lab and The Scripps Research Institute recently solved the structure of XPD. The structure gives novel insight into the processes of aging and cancer by revealing how discrete flaws-as seemingly insignificant as a change in either of two adjacent amino acid residues-can lead to diseases with completely different physical manifestations.
Property:HostRockAge | Open Energy Information
HostRockAge HostRockAge Jump to: navigation, search Property Name HostRockAge Property Type String Description Describes the age of the reservoir rock by epoch, era, or period per available data. This is a property of type Page. Subproperties This property has the following 10 subproperties: B Beowawe Hot Springs Geothermal Area Brady Hot Springs Geothermal Area C Chena Geothermal Area D Desert Peak Geothermal Area G Geysers Geothermal Area R Raft River Geothermal Area Roosevelt Hot Springs Geothermal Area S Salton Sea Geothermal Area Steamboat Springs Geothermal Area W Wabuska Hot Springs Geothermal Area Pages using the property "HostRockAge" Showing 11 pages using this property. A Amedee Geothermal Area + Mesozoic + B Blue Mountain Geothermal Area + Triassic + C Coso Geothermal Area + Mesozoic +
The role of aging in resolving the ferrocyanide safety issue
A chemical process called aging, in which stored ferrocyanide waste could be dissolved and dispersed among waste tanks, or destroyed by radiolysis and hydrolysis, has been proposed at the Hanford Site. This paper summarizes the results of applied research, characterization, and modeling activities on Hanford Site ferrocyanide waste material that support the existence of a chemical aging mechanism. Test results from waste simulants and actual waste tank materials are presented and compared with theoretical estimates. Chemical and energetic behavior of the materials are the key indicators of destruction or dispersion. Screening experiments on vendor-prepared sodium nickel ferrocyanide and the initial results from core sampling support the concept that aging of ferrocyanide is taking place in the waste tanks at the Hanford Site. This report defines the concept of waste aging and explains the role that aging could play in resolving the Hanford Site ferrocyanide safety issue.
Babad, H.; Meacham, J.E.; Simpson, B.C.; Cash, R.J.
The distribution of stellar population age in galactic bars
Recent analysis of stellar populations in barred galaxies have focused on the spatial distribution of stellar population ages and metallicities. However, barred galaxies are complex objects where dynamical instabilities play a leading role in shaping any spatial distribution. The age distribution of stellar populations should thus be analyzed from the two points of view of stellar population evolution and dynamical secular evolution. Chemodynamical simulations of single barred galaxies with simple but realistic star formation and feedback recipes are used to produce face-on mass-weighted maps of stellar population ages. Luminosity-weighted maps in V-band are also displayed after calibrating the simulation with mass-to-light ratios provided by a synthesis population model. It is shown that inside a stellar bar two persistent diametrically opposed regions display a mean age lower than the surrounding average. These two low-age regions are due to the accumulation of young stellar populations trapped on elliptica...
Wozniak, H
Aging management guideline for commercial nuclear power plants-pumps
This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant pumps important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.
Booker, S.; Katz, D.; Daavettila, N.; Lehnert, D. [MDC-Ogden Environmental and Energy Services, Southfield, MI (United States)
Catastrophic senescence and semelparity in the Penna aging model
The catastrophic senescence of the Pacific salmon is among the initial tests used to validate the Penna aging model. Based on the mutation accumulation theory, the sudden decrease in fitness following reproduction may be solely attributed to the semelparity of the species. In this work, we report other consequences of mutation accumulation. Contrary to earlier findings, such dramatic manifestation of aging depends not only on the choice of breeding strategy but also on the value of the reproduction age, R, and the mutation threshold, T. Senescence is catastrophic when T\\leq R. As the organism's tolerance for harmful genetic mutations increases, the aging process becomes more gradual. We observe senescence that is threshold dependent whenever T>R. That is, the sudden drop in survival rate occurs at age equal to the mutation threshold value.
Pinol, C M N
Globular Cluster Ages and the Formation of the Galactic Halo
Main sequence turnoff magnitudes from the recent set of Yale isochrones (Chaboyer \\ea 1995) have been combined with a variety of relations for the absolute magnitude of RR Lyr stars (\\mvrr) to calibrate age as a function of the difference in magnitude between the main sequence turn-off and the horizontal branch (\\dv). A best estimate for the calibration of \\mvrr is derived from a survey of the current literature: $\\mvrr = 0.20 \\feh + 0.98$. This estimate, together with other calibrations (with slopes ranging from 0.15 to 0.30) has been used to derive \\dv ages for 43 Galactic globular clusters. Independent of the choice of \\mvrr, there is no strong evidence for an age-Galacto\\-centric distance relationship among the 43 globular clusters. However, an age-metallicity relation exists, with the metal-poor clusters being the oldest. A study of the age distribution reveals that an age range of 5 Gyr exists among the bulk of the globular clusters. In addition, about 10\\% of the sample are substantially younger, and including them in the analysis increases the age range to 9 Gyr. Once again, these statements are independent of the \\mvrr ~relation. Evidence for age being the second parameter governing horizontal branch morphology is found by comparing the average \\dv ~age of the second parameter clusters to the normal clusters. The second parameter clusters are found to be on average 2 - 3 Gyr younger than the other clusters, which is consistent with age being the second parameter. These results suggest that globular clusters were formed over an extended period of time, with progressively more metal-rich globular clusters ($\\feh \\ga -1.7$) being formed at later times.
Brian Chaboyer; P. Demarque; Ata Sarajedini
An assessment of fire vulnerability for aged electrical relays
There has been some concern that, as nuclear power plants age, protective measures taken to control and minimize the impact of fire may become ineffective, or significantly less effective, and hence result in an increased fire risk. One objective of the Fire Vulnerability of Aged Electrical Components Program is to assess the effects of aging and service wear on the fire vulnerability of electrical equipment. An increased fire vulnerability of components may lead to an overall increase in fire risk to the plant. Because of their widespread use in various electrical safety systems, electromechanical relays were chosen to be the initial components for evaluation. This test program assessed the impact of operational and thermal aging on the vulnerability of these relays to fire-induced damage. Only thermal effects of a fire were examined in this test program. The impact of smoke, corrosive materials, or fire suppression effects on relay performance were not addressed in this test program. The purpose of this test program was to assess whether the fire vulnerability of electrical relays increased with aging. The sequence followed for the test program was to: identify specific relay types, develop three fire scenarios, artificially age several relays, test the unaged and aged relays in the fire exposure scenarios, and compare the results. The relays tested were Agastat GPI, General Electric (GE) HMA, HGA, and HFA. At least two relays of each type were artificially aged and at least two relays of each type were new. Relays were operationally aged by cycling the relay under rated load for 2,000 operations. These relays were then thermally aged for 60 days with their coil energized.
Vigil, R.A. [Sandia National Labs., Albuquerque, NM (United States)]|[Science and Engineering Associates, Inc., Albuquerque, NM (United States); Nowlen, S.P. [Sandia National Labs., Albuquerque, NM (United States)
Medical Waiver Male participants over 45 years of age and female participants over 55 years of age are required
Medical Waiver Male participants over 45 years of age and female participants over 55 years of age are required to submit a Medical Waiver signed by their physician before participation in the Recreation of heart disease) are required to submit the Medical Waiver signed by their physician regardless
Spence, Harlan Ernest
The Health of Aging Lesbian, Gay and Bisexual Adults in California
March 2011 The Health of Aging Lesbian, Gay and Bisexualpopulation-level data on aging LGB adults (ages 50-70)care appears similar for aging LGB and heterosexual adults,
Wallace, Steven P.; Cochran, Susan D.; Durazo, Eva M.; Ford, Chandra L.
The Relative Age of the Thin and Thick Galactic Disks
We determine the relative ages of the open cluster NGC 188 and selected Hipparcos field stars by isochrone fitting, and compare them to the age of the thick disk globular cluster 47 Tuc. The best fit age for NGC 188 was determined to be $6.5 \\pm 1.0$ Gyr. The solar metallicity Hipparcos field stars yielded a slightly older thin disk age, $7.5 \\pm 0.7$ Gyr. Two slightly metal-poor ($\\feh = -0.22$) field stars whose kinematic and orbital parameters indicate that they are members of the thin disk were found to have an age of $9.7\\pm 0.6$ Gyr. The age for 47 Tuc was determined to be $12.5 \\pm 1.5$ Gyr. All errors are internal errors due to the uncertainty in the values of metallicity and reddening. Thus, the oldest stars dated in the thin disk are found to be $2.8\\pm 1.6$ Gyr younger than 47 Tuc. Furthermore, as discussed by \\citet{Chb99} 47 Tuc has a similar age to three globular clusters located in the inner part of the Galactic halo, implying that star formation in the thin disk started within $2.8\\pm 1.6$ Gyr of star formation in the halo.
Wilson M. Liu; Brian Chaboyer
Recommendations for the treatment of aging in standard technical specifications
As part of the US Nuclear Regulatory Commission`s Nuclear Plant Aging Research Program, Pacific Northwest Laboratory (PNL) evaluated the standard technical specifications for nuclear power plants to determine whether the current surveillance requirements (SRs) were effective in detecting age-related degradation. Nuclear Plant Aging Research findings for selected systems and components were reviewed to identify the stressors and operative aging mechanisms and to evaluate the methods available to detect, differentiate, and trend the resulting aging degradation. Current surveillance and testing requirements for these systems and components were reviewed for their effectiveness in detecting degraded conditions and for potential contributions to premature degradation. When the current surveillance and testing requirements appeared ineffective in detecting aging degradation or potentially could contribute to premature degradation, a possible deficiency in the SRs was identified that could result in undetected degradation. Based on this evaluation, PNL developed recommendations for inspection, surveillance, trending, and condition monitoring methods to be incorporated in the SRs to better detect age- related degradation of these selected systems and components.
Orton, R.D.; Allen, R.P.
Aging phenomena in PMMA thin films -- memory and rejuvenation effects
Aging dynamics in thin films of poly(methyl methacrylate) (PMMA) have been investigated through dielectric measurements for different types of aging processes. The dielectric constant was found to decrease with increasing aging time at an aging temperature in many cases. An increase in the dielectric constant was also observed in the long time region ($\\ge$11h) near the glass transition temperature for thin films with thickness less than 26nm. In the constant rate mode including a temporary stop at a temperature $T_a$, the memory of the aging at $T_a$ was found to be kept and then to be recalled during the subsequent heating process. In the negative temperature cycling process, a strong rejuvenation effect has been observed after the temperature shift from the initial temperature $T_1$ to the second temperature $T_2$($=T_1+\\Delta T$) when $\\Delta T\\approx -20$K. Furthermore, a full memory effect has also been observed for the temperature shift from $T_2$ to $T_1$. This suggests that the aging at $T_1$ is totally independent of that at $T_2$ for $\\Delta T\\approx -20$K. As $|\\Delta T|$ decreases, the independence of the aging between the two temperatures was found to be weaken, $i.e.,$ the effective time, which is a measure of the contribution of the aging at $T_1$ to that at $T_2$, is a decreasing function of $|\\Delta T|$ in the negative region of $\\Delta T$. As the film thickness decreases from 514nm to 26nm, the $|\\Delta T|$ dependence of the effective time was found to become much stronger. The contribution of the aging at $T_2$ to that at $T_1$ disappears more rapidly with increasing $|\\Delta T|$ in thin film geometry than in the bulk state.
Koji Fukao; Aiko Sakamoto
AGE-1 WALLEYE POLLOCK IN THE EASTERN BERING SEA: DISTRIBUTION, ABUNDANCE, DIET, AND ENERGY DENSITY performed at sea · Energy density estimated using bomb calorimetry for samples from BASIS and MACE surveys · Confirm ages of age-0 and age-1 pollock using otoliths · Distribution of age-1's further north than age-0
Materials Reliability Program: Technical Basis for Change to American Society of Mechanical Engineers (ASME) Section XI Appendix VIII Root- Mean-Square Error Requirement for Qualification of Depth-Sizing for Ultrasonic Testing (UT) Performed from the In
This report provides the technical basis for a modification of the ultrasonic testing (UT) qualification requirements of Appendix VIII of ASME Section XI. A recommended change to the requirement for flaw depth-sizing uncertainty is presented on the basis of deterministic and probabilistic evaluation approaches.BackgroundCompliance with the 0.125" depth-sizing root-mean-square error (RMSE) required by ASME Code Section XI Appendix VIII (Supplements 2, 10, ...
Phenomenology of ageing in the Kardar-Parisi-Zhang equation
We study ageing during surface growth processes described by the one-dimensional Kardar-Parisi-Zhang equation. Starting from a flat initial state, the systems undergo simple ageing in both correlators and linear responses and its dynamical scaling is characterised by the ageing exponents a=-1/3, b=-2/3, lambda_C=lambda_R=1 and z=3/2. The form of the autoresponse scaling function is well described by the recently constructed logarithmic extension of local scale-invariance.
Malte Henkel; Jae Dong Noh; Michel Pleimling
Forecasting cosmological constraints from age of high-z galaxies
We perform Monte Carlo simulations based on current age estimates of high-z objects to forecast constraints on the equation of state (EoS) of the dark energy. In our analysis, we use two different EoS parameterizations, namely, the so-called CPL and its uncorrelated form and calculate the improvements on the figure of merit for both cases. Although there is a clear dependence of the FoM with the size and accuracy of the synthetic age samples, we find that the most substantial gain in FoM comes from a joint analysis involving age and baryon acoustic oscillation data.
C. A. P. Bengaly Jr.; M. A. Dantas; J. C. Carvalho; J. S. Alcaniz
The Consortium for Social Work Training in Aging: Schools of social work in partnership with county departments of adult and aging services
knowledge and misconceptions about aging: Responses toPalmore's Facts on Aging quizzes. The Ger- ontologist,32,of Palmore's second facts on aging quiz from a true-false to
Scharlach, Andrew E; Robinson, B K
THE CONSORTIUM FOR SOCIAL WORK TRAINING IN AGING: SCHOOLS OFan innovative collaborative training model that includedand aging services, and enhanced training capacity of county
Space-Age Ceramics Get Their Space-Age Ceramics Get Their Toughest Test Space-Age Ceramics Get Their Toughest Test Print Wednesday, 17 April 2013 07:23 Advanced ceramic composites can withstand the ultrahigh operational temperatures projected for hypersonic jet and next-generation gas-turbine engines, but real-time analysis of the mechanical properties of these space-age materials at ultrahigh temperatures has been a challenge-until now. Researchers have developed the first testing facility that enables microtomography of ceramic composites under controlled loads at ultrahigh temperatures and in real-time. Using this facility, they have fully resolved sequences of microcrack damage as cracks grow under load at temperatures several hundred degrees higher than previously possible. The observations are key ingredients of the high-fidelity simulations used to compute failure risks under extreme operating conditions.
Retinal Diseases: Age-Related Macular Degeneration and Retinitis Pigmentosa
Retinal Diseases: Age-Related Macular Degeneration and Retinitis Pigmentosa Retinal Diseases: Age-Related Macular Degeneration and Retinitis Pigmentosa Age-related macular degeneration (AMD) is an eye disease primarily affecting the central vision regions in people age 60 and older. According to the Macular Degeneration Research Fund, a case of AMD is diagnosed in the United States every 3 minutes. Each year, 1.2 million of the estimated 12 million people with AMD will suffer severe vision loss. Patients with AMD have dark areas in their vision caused by fluid leakage or bleeding in the macula, the center of the retina that produces the sharpest vision. The brain initially compensates for these dark patches. Early cellular dysfunction or spotting in the macula may go undetected until the disease is in advanced stages.
Bioscience Bioscience Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism that maintains the integrity of DNA. XPD is unique, however, in that pinpoint mutations of this single protein are responsible for three different human diseases: in xeroderma pigmentosum (XP), extreme sensitivity to sunlight promotes cancer; Cockayne syndrome (CS) involves stunted growth and premature aging; trichothiodystrophy (TTD), characterized by brittle hair and scaly skin, is another form of greatly accelerated aging. At the ALS, researchers from Berkeley Lab and The Scripps Research Institute recently solved the structure of XPD. The structure gives novel insight into the processes of aging and cancer by revealing how discrete flaws-as seemingly insignificant as a change in either of two adjacent amino acid residues-can lead to diseases with completely different physical manifestations.
Links between persistent DNA damage, genome instability, and aging
Links between persistent DNA damage, genome instability, and aging Links between persistent DNA damage, genome instability, and aging William Dynan Medical College of Georgia Abstract There is considerable overlap between cellular and molecular changes that occur in response to low doses of ionizing radiation and those that occur during aging. Both processes are characterized by accumulation of persistent DNA damage ("wear and tear" on the genome), accumulation of protein and lipid oxidation products, loss of regenerative capacity at the cellular and tissue level, and increased incidence of cancer. These observations support a hypothesis that exposure to low-dose ionizing radiation accelerates normal, aging-related tissue changes. We have investigated this hypothesis using a genetically tractable model organism, the Japanese medaka fish. The medaka is a whole-animal vertebrate
Author age prediction from text using linear regression
While the study of the connection between discourse patterns and personal identification is decades old, the study of these patterns using language technologies is relatively recent. In that more recent tradition we frame author age prediction from text ...
Dong Nguyen; Noah A. Smith; Carolyn P. Ros�
Users, technology and space in libraries in the digital age
This thesis is a user research study of emerging issues in the use of libraries as public spaces and as information repositories in the digital age. Till recently strong physicality was attached to the library with the ...
G-Chandorkar, Tripti (Gore-Chandorkar)
Mo Type Phase in Long-Term Aged INCONEL Alloy
FORMATION OF A PtzMo TYPE PHASE IN LONG-TERM AGED lNCONEL@ ALLOY 686. Michael G. ... formation of a low-temperature iutermetallic Pt*Mo type .
Influence of Zn Additions on Age Hardening Response and ...
... on Age Hardening Response and Microstructure of Mg-0.3at.%Ca Alloys. Author(s), Keiichiro Oh-ishi, Chamini L Mendis, Ryuichi Watanabe, Kazuhiro Hono.
Service settings for an aging society : a community ordering principle
Current facility models used in the design of housing and service settings for older people encourage the development of urban, large scale, age-segregated institutional environments. Research has either unwittingly or ...
Nelson, Gaius Grant
Tensile-property characterization of thermally aged cast stainless steels
The effect of thermal aging on tensile properties of cast stainless steels during service in light water reactors has been evaluated. Tensile data for several experimental and commercial heats of cast stainless steels are presented. Thermal aging increases the tensile strength of these steels. The high-C Mo-bearing CF-8M steels are more susceptible to thermal aging than the Mo-free CF-3 or CF-8 steels. A procedure and correlations are presented for predicting the change in tensile flow and yield stresses and engineering stress-vs.-strain curve of cast stainless steel as a function of time and temperature of service. The tensile properties of aged cast stainless steel are estimated from known material information, i.e., chemical composition and the initial tensile strength of the steel. The correlations described in this report may be used for assessing thermal embrittlement of cast stainless steel components.
Michaud, W.F.; Toben, P.T.; Soppet, W.K.; Chopra, O.K. [Argonne National Lab., IL (United States)
Figure 2. Stratigraphic Summary of Ages, Names and Rock Types...
2. Stratigraphic Summary of Ages, Names and Rock Types in the ANWR 1002 and Coastal Plain Area of the Alaska North Slope. Potentially Productive Reservoirs and Plays Assessed by...
OH-Initiated Heterogeneous Aging of Highly Oxidized Organic Aerosol
The oxidative evolution (�aging�) of organic species in the atmosphere is thought to have a major influence on the composition and properties of organic particulate matter but remains poorly understood, particularly for ...
Kessler, Sean Herbert
Compressive Seal Development: Combined Ageing and Thermal Cycling Compressive
The objective of this project was to evaluate the combined aging and cycling effect on hybrid Phlogopite mica seals with respect to materials and interfacial degradations in a simulated SOFC environment.
Chou, M.Y-S.; Stevenson, J.W.; Singh, P.
Late Pleistocene Ice Age Scenarios Based on Observational Evidence
Ice age scenarios for the last glacial-interglacial cycle, based on observations of Boyle and Keigwin concerning the North Atlantic thermohaline circulation and of Barnola et al. concerning atmospheric C02 variations derived from the Vostok ice ...
G. DeBlonde; W. R. Peltier
Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism...
Effect of Isothermal Aging and Thermal Cycling on Interfacial IMC ...
Abstract Scope, The growth of IMCs of SnAgCu/Cu solder joint in isothermal aging and thermal cycling, was investigated with the focus on the growth kinetics.
Bioscience Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair...
Big Rock Point Aged Material Sampling Program -- Project Closeout Report
In submitting an application for license renewal for a nuclear power plant, utilities must demonstrate that aging effects applicable to plant components will be effectively managed during the extended operating term. Destructive and non-destructive evaluation of components in operating plants provides particularly relevant information on aging effects and mechanisms that can be used to support a license renewal submittal. Such information is difficult to obtain. This report describes an effort to obtain ...
Aging Chamber Report Tool (ACRT) Version 5.0
The 230kV Accelerated Aging Chamber is a multi-year test of more than 50 polymer and fiberglass components.� Photographic inspections occur twice a year.� Thousands of photographs accumulate making conventional reports difficult to read.� This reporting tool enables the reader to jump from component to component and inspection to inspection.� The reader can easily compare components at different levels of aging.� This tool will make reviewing the important results of this ...
Aging Chamber Report Tool (ACRT) v6.0
Accelerated Aging Test of High-Temperature Conductor and Connectors
As part of the research on high-temperature low-sag (HTLS) advanced conductors, this project investigates the long-term performance of commercially available advanced conductors to complement the field demonstration project, which provided information on handling and stringing of these conductors. The report provides preliminary results from the accelerated aging tests conducted on various types of HTLS conductors and their connectors. The objective of the accelerated aging tests is to determine the ...
Evidence of aging effects on certain safety-related components
In response to interest shown by the Nuclear Energy Agency (NEA), Principal Working Group I (PWG- 1) of the Committee on the Safety of Nuclear Installations (CSNI) conducted a generic study on the effects of aging of active components in nuclear power plants. (This focus on active components is consistent with PWG-l`s mandate; passive components are primarily within the mandate of PWG-3.) Representatives from France, Sweden, Finland, Japan, the United States, and the United Kingdom participated in the study by submitting reports documenting aging studies performed in their countries. This report consists of summaries of those reports, along with a comparison of the various statistical analysis methods used in the studies. The studies indicate that with some exceptions, active components generally do not present a significant aging problem in nuclear power plants. Design criteria and effective preventative maintenance programs, including timely replacement of components, are effective in mitigating potential aging problems. However, aging studies (such as qualitative and statistical analyses of failure modes and maintenance data) are an important part of efforts to identify and solve potential aging problems. Solving these problems typically includes such strategies as replacing suspect components with improved components, and implementing improved maintenance programs.
Magleby, H.L.; Atwood, C.L.; MacDonald, P.E.; Edson, J.L.; Bramwell, D.L. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
Accident sequence precursor events with age-related contributors
The Accident Sequence Precursor (ASP) Program at ORNL analyzed about 14.000 Licensee Event Reports (LERs) filed by US nuclear power plants 1987--1993. There were 193 events identified as precursors to potential severe core accident sequences. These are reported in G/CR-4674. Volumes 7 through 20. Under the NRC Nuclear Plant Aging Research program, the authors evaluated these events to determine the extent to which component aging played a role. Events were selected that involved age-related equipment degradation that initiated an event or contributed to an event sequence. For the 7-year period, ORNL identified 36 events that involved aging degradation as a contributor to an ASP event. Except for 1992, the percentage of age-related events within the total number of ASP events over the 7-year period ({approximately}19%) appears fairly consistent up to 1991. No correlation between plant ape and number of precursor events was found. A summary list of the age-related events is presented in the report.
Murphy, G.A.; Kohn, W.E.
Exercise training modulates apoptotic signaling in the aging rat heart
Aging is characterized by a progressive decline in cardiac function. A critical contributor to the age-related impairment in heart function is the loss of cardiac myocytes through ??apoptosis??, or programmed cell death. A dramatic increase in the rate of apoptosis has been reported with aging in the rat left ventricle. In contrast, exercise training not only improves cardiac function, but also reduces the risk of heart disease. However, the ability of exercise training to modulate apoptotic signaling and apoptosis in the aging heart remains unknown. Therefore, the purpose of this study was to determine the effects of exercise training on apoptotic signaling and apoptosis in the aging heart. We hypothesized that (1) aging would increase pro-apoptotic signaling and apoptosis in the rat left ventricle, and (2) exercise training would ameliorate upregulation of Bcl-2 family-driven apoptosis in the heart. Four and 25 month old Fischer-344 rats were assigned to four groups: young control (YC), young trained (YT), old control (OC), and old trained (OT). Exercise training groups ran on a treadmill for 60 min/day at 15 m/min (15? incline), 5 d/wk for 12 wk. Protein expression of Bax, Bcl-2, caspase-9, and cleaved caspase-3 was measured using Western immunoblot analysis. Apoptosis (DNA fragmentation) was assessed using a cell death detection ELISA. Bax levels in OC were dramatically higher (+176.0%) compared to YC. In contrast, exercise training resulted in a significant decrease (-53.4%) in Bax in OT compared to OC. Bcl-2 levels in OC were lower (-26.3%) compared to YC. Conversely, exercise training significantly increased Bcl-2 levels by 117.8% in OT compared to OC. Caspase-9 levels were higher (+98.7%) in OC than YC, while exercise training significantly reduced caspase-9 levels in YT (-52.6%) and OT (-76.9%), respectively. Aging resulted in a dramatic increase (+122.8%) in cleaved caspase-3 levels and a significant decrease (-32.9%) with exercise training. Finally, apoptosis (DNA fragmentation) significantly increased (+163.8%) with aging and decreased (-43.9%) with exercise training. These novel data indicate that aging increases pro-apoptotic signaling and apoptosis in the left ventricle, while exercise training is effective in diminishing pro-apoptotic signaling and apoptosis in the aging heart.
Kwak, Hyo Bum
The impact of increasing home size on energy demand The impact of increasing home size on energy demand RECS 2009 - Release date: April 19, 2012 Homes built since 1990 are on average 27% larger than homes built in earlier decades, a significant trend because most energy end-uses are correlated with the size of the home. As square footage increases, the burden on heating and cooling equipment rises, lighting requirements increase, and the likelihood that the household uses more than one refrigerator increases. Square footage typically stays fixed over the life of a home and it is a characteristic that is expensive, even impractical to alter to reduce energy consumption. According to results from EIA's 2009 Residential Energy Consumption Survey (RECS), the stock of homes built in the 1970s and 1980s averages less than
Enzyme Structure Provides Enzyme Structure Provides Insights into Cancer and Aging Enzyme Structure Provides Insights into Cancer and Aging Print Wednesday, 25 February 2009 00:00 XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism that maintains the integrity of DNA. XPD is unique, however, in that pinpoint mutations of this single protein are responsible for three different human diseases: in xeroderma pigmentosum (XP), extreme sensitivity to sunlight promotes cancer; Cockayne syndrome (CS) involves stunted growth and premature aging; trichothiodystrophy (TTD), characterized by brittle hair and scaly skin, is another form of greatly accelerated aging. At the ALS, researchers from Berkeley Lab and The Scripps Research Institute recently solved the structure of XPD. The structure gives novel insight into the processes of aging and cancer by revealing how discrete flaws-as seemingly insignificant as a change in either of two adjacent amino acid residues-can lead to diseases with completely different physical manifestations.
Aging tests of ethylene contaminated argon/ethane
We report on aging tests of argon/ethane gas with a minor (1800 ppM) component of ethylene. The measurements were first conducted with the addition of alcohol to test the suppression of aging by this additive, with exposure up to {approx}1.5 C/cm. Tests have included: a proportional tube with ethanol, another with isopropyl alcohol, and for comparison a tube has also been run with ethanol and argon/ethane from CDF`s old (ethylene-free) ethane supply. The aging test with ethanol showed no difference between the ethylene-free and the ethylene tube. Furthermore, raw aging rates of argon/ethane and argon/ethane/ethylene were measured by exposing tubes without the addition of alcohol to about 0.1 C/cm. Again, no significant difference was observed. In conclusion, we see no evidence that ethylene contamination up to 1800 ppM has any adverse effect on wire aging. However, this level of ethylene does seem to significantly suppress the gas gain.
Atac, M. [Fermi National Accelerator Lab., Batavia, IL (United States); Bauer, G. [Massachusetts Inst. of Tech., Cambridge, MA (United States)
File 2: Building Activity File 2: Building Activity (cb86f02.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC. B-3 Any residential use RESUSE3 28- 28 $YESNO.
File 7: HVAC, Lighting, and Building Shell Conservation Features File 7: HVAC, Lighting, and Building Shell Conservation Features (cb86f07.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC.
4: Imputation Flags for HVAC, Lighting 4: Imputation Flags for HVAC, Lighting and Shell Conservation Features (cb86f14.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC.
" Row: NAICS Codes;"
2.1. Enclosed Floorspace and Number of Establishment Buildings, 1998;" 2.1. Enclosed Floorspace and Number of Establishment Buildings, 1998;" " Level: National Data; " " Row: NAICS Codes;" " Column: Floorspace and Buildings;" " Unit: Floorspace Square Footage and Building Counts." ,,"Approximate",,,"Approximate","Average" ,,"Enclosed Floorspace",,"Average","Number","Number" ,,"of All Buildings",,"Enclosed Floorspace","of All Buildings","of Buildings Onsite","RSE" "NAICS"," ","Onsite","Establishments(b)","per Establishment","Onsite","per Establishment","Row"
File 4: Building Shell, Equipment, Energy Audits, File 4: Building Shell, Equipment, Energy Audits, and "Ohter" Conservation Features (cb86f04.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC.
File 8: Electricity File 8: Electricity (cb86f08.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC. Principal building activity PBA3 28- 29 $ACTIVTY.
File 3: Operating Hours File 3: Operating Hours (cb86f03.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC. Principal building activity PBA3 28- 29 $ACTIVTY.
1 Enclosed Floorspace and Number of Establishment Buildings, 2002;" 1 Enclosed Floorspace and Number of Establishment Buildings, 2002;" " Level: National Data; " " Row: NAICS Codes;" " Column: Floorspace and Buildings;" " Unit: Floorspace Square Footage and Building Counts." ,,"Approximate",,,"Approximate","Average" ,,"Enclosed Floorspace",,"Average","Number","Number" ,,"of All Buildings",,"Enclosed Floorspace","of All Buildings","of Buildings Onsite","RSE" "NAICS"," ","Onsite","Establishments(b)","per Establishment","Onsite","per Establishment","Row"
3: Imputation Flags for Energy Audits, 3: Imputation Flags for Energy Audits, "Other" Conservation Features, and End Uses (cb86f13.csv) Ques- tion- naire Variable Variable Variable Variable item Description Name Position Format Building identifier BLDGID3 1- 5 Adjusted weight ADJWT3 7- 14 Variance stratum STRATUM3 16- 17 Pair member PAIR3 19- 19 Census region REGION3 21- 21 $REGION. Census division CENDIV3 23- 23 $CENDIV. B-2 Square footage SQFTC3 25- 26 $SQFTC.
Light Water Reactor Sustainability Program: Materials Aging and Degradation
Materials Aging and Materials Aging and Degradation Technical Program Plan Light Water Reactor Sustainability Program: Materials Aging and Degradation Technical Program Plan Components serving in a nuclear reactor plant must withstand a very harsh environment including extended time at temperature, neutron irradiation, stress, and/or corrosive media. The many modes of degradation are complex and vary depending on location and material. However, understanding and managing materials degradation is a key for the continued safe and reliable operation of nuclear power plants. Extending reactor service to beyond 60 years will increase the demands on materials and components. Therefore, an early evaluation of the possible effects of extended lifetime is critical. The recent NUREG/CR-6923 gives a
Space-Age Ceramics Get Their Toughest Test Print Space-Age Ceramics Get Their Toughest Test Print Advanced ceramic composites can withstand the ultrahigh operational temperatures projected for hypersonic jet and next-generation gas-turbine engines, but real-time analysis of the mechanical properties of these space-age materials at ultrahigh temperatures has been a challenge-until now. Researchers have developed the first testing facility that enables microtomography of ceramic composites under controlled loads at ultrahigh temperatures and in real-time. Using this facility, they have fully resolved sequences of microcrack damage as cracks grow under load at temperatures several hundred degrees higher than previously possible. The observations are key ingredients of the high-fidelity simulations used to compute failure risks under extreme operating conditions.
Density and Tensile Properties Changed by Aging Plutonium
We present volume, density, and tensile property change observed from both naturally and accelerated aged plutonium alloys. Accelerated alloys are plutonium alloys with a fraction of Pu-238 to accelerate the aging process by approximately 18 times the rate of unaged weapons-grade plutonium. After thirty-five equivalent years of aging on accelerated alloys, the dilatometry shows the samples at 35 C have swelled in volume by 0.12 to 0.14% and now exhibit a near linear volume increase due to helium in-growth while showing possible surface effects on samples at 50 C and 65 C. The engineering stress of the accelerated alloy at 18 equivalent years increased significantly compared to at 4.5 equivalent years.
Chung, B W; Choi, B W; Thompson, S R; Woods, C H; Hopkins, D J; Ebbinghaus, B B
DOE-sponsored cable aging research at Sandia National Laboratories
Cables have been identified as critical components requiring detailed technical evaluation for extending the lifetime of Light Water Reactors beyond 40 years. This paper highlights some of the DOE-sponsored cable aging studies currently underway at Sandia. These studies are focused on two important issues: the validity of the often-used Arrhenius thermal aging prediction method and methods for predicting lifetimes in combined thermal-radiation environments. Accelerated thermal aging results are presented for three cable jacket and insulation materials, which indicate that hardening of the outside surface has an Arrhenius temperature dependence and correlates well with reductions in ultimate tensile elongation. This suggests that the indentor approach is a promising NDE technique for cable jacket and unjacketed insulation materials installed in thermally-dominated regions of nuclear power plants.
Gillen, K.T.; Clough, R.L.; Celina, M.; Wise, J.; Malone, G.M.
Age constraints on fluid inclusions in calcite at Yucca Mountain
The {sup 207}Pb/{sup 235}U ages for 14 subsamples of opal or chalcedony layers younger than calcite formed at elevated temperature range between 1.88 {+-} 0.05 and 9.7 {+-} 1.5 Ma with most values older than 6-8 Ma. These data indicate that fluids with elevated temperatures have not been present in the unsaturated zone at Yucca Mountain since about 1.9 Ma and most likely since 6-8 Ma. Discordant U-Pb isotope data for chalcedony subsamples representing the massive silica stage in the formation of the coatings are interpreted using a model of the diffusive loss of U decay products. The model gives an age estimate for the time of chalcedony formation around 10-11 Ma, which overlaps ages of clay minerals formed in tuffs below the water table at Yucca Mountain during the Timber Mountain thermal event.
Neymark, Leonid A.; Amelin, Yuri V.; Paces, James B.; Peterman, Zell E.; Whelan, Joseph F.
Aging effects in simple models for glassy relaxation
Aging effects in the two-time correlation function and the response function after a quench from a high temperature to some low temperature are considered for a simple kinetic random energy model exhibiting stretched exponential relaxation. Because the system reaches thermal equilibrium for long times after the quench, all aging effect are of a transient nature. In particular, the violations of the fluctuation-dissipation theorem are considered and it is found that the relation between the response and the two-time correlation function depends on another function, the so-called asymmetry. This asymmetry vanishes in equilibrium but cannot be neglected in the aging regime. It is found that plots of the integrated response versus the correlation function are not applicable to quantify the violations of the fluctuation-dissipation theorem in this particular model. This fact has its origin in the absence of a scaling form of the correlation.
Gregor Diezemann
Glassy Aging with Modified Kohlrausch-Williams-Watts Form
In this report we address the question whether aging in the non equilibrium glassy state is controlled by the equilibrium alpha-relaxation process which occur at temperatures above Tg. Recently Lunkenheimer et. al. [Phys. Rev. Lett. 95, 055702 (2005)] proposed a model for the glassy aging data of dielectric relaxation using a modified Kohlrausch-Williams-Watts (KWW) form. The aging time dependence of the relaxation time is defined by these authors through a functional relation involving the corresponding frequency but the stretching exponent is same as the alpha-relaxation stretching exponent. We present here an alternative functional form directly involving the relaxation time itself. The proposed model fits the data of Lunkenheimer et. al. perfectly with a stretching exponent different from the alpha-relaxation stretching exponent.
Bhaskar Sen Gupta; Shankar P. Das
Investigating the Use of Ultrasonic Guided Waves for Aging Wire
Aging wiring has become a critical issue to DoD, NASA, FAA, and Industry. The problem is that insulation on environmentally aged wire becomes brittle and cracks. This exposes the underlying conductive wire to the potential for short circuits and fire. The difficulty is that techniques to monitor aging wire problems focus on applying electrical sensing techniques that are not very sensitive to the wire insulation. Thus, the development of methods to quantify and monitor aging wire insulation is highly warranted. Measurement of wire insulation stiffness by ultrasonic guided waves is being examined. Initial laboratory tests were performed on a simple model consisting of a solid cylinder and then a solid cylinder with a polymer coating. Experimental measurements showed that the lowest order axisymmetric mode may be sensitive to stiffness changes in the wire insulation. To test this theory, mil-spec wire samples MIL-W-81381, MIL-W-22759/34, and MIL-W-22759/87 (typically found in aircraft) were heat-damaged in an oven, in a range of heating conditions. The samples were 12, 16, and 20 gauge and the heat-damage introduced material changes in the wire-insulation that made the originally flexible insulation brittle and darker in color. Axisymmetric mode phasevelocity increased for the samples that were exposed to heat for longer duration. For example, the phase velocity in the 20-gauge MIL-W-22759/34 wire changed from a baseline value of 2790m/s to 3280m/s and 3530m/s for one-hour exposures to 349 C and 399 C, respectively. Although the heat-damage conditions are not the same as environmental aging, we believe that with further development and refinements, the ultrasonic guided waves can be used to inspect wire-insulation for detrimental environmental aging conditions.
Insulation Assessment Robert; Robert F. Anastasi A; Eric I. Madaras B