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Office of Scientific and Technical Information
Energy Efficiency in China: Glorious History, Uncertain Future
NLE Websites -- All DOE Office Websites (Extended Search)
Energy Efficiency in China: Glorious History, Uncertain Future Speaker(s): Mark Levine Date: March 3, 2005 - 12:00pm Location: Bldg. 90 From 1980 to 2000, China made remarkable...
Hail to the Vagina -Robert Thurman The famous Indian Buddhist Esoteric Scripture, The Glorious Esoteric Community Royal Tantra
E-Print Network (OSTI)
Hail to the Vagina - Robert Thurman The famous Indian Buddhist Esoteric Scripture, The Glorious Esoteric Community Royal Tantra (Shri Guhyasamaja Tantraraja), is presented as a revelation granted sensitive, delicate, adamantine matrix of life and bliss. This most advanced esoteric text of the Buddhist
O'Laughlin, Jay
Color naming
Color naming consists in assigning a color name, such as �red� or �blue�, to a concrete color one sees (or saw) in the environment. Such a concrete color may be perceived as part of a particular object�s appearance, such as the yellow color of a banana, or a color sample that represents color by itself, such as encountered when choosing a color in a clothing catalogue. This definition might seem simple and self-speaking. However, the mental performance of color naming is not trivial at all since it involves two kinds of transformations. On the one hand, the perception of color is based on three perceptual parameters: hue, saturation and brightness. Color naming combines these parameters to just one level of feature comparison, namely the color names. On the other hand, each of these three parameters varies continuously. Color naming transforms this continuous color space into distinct color categories, to which we assign a word. Taken together this allows us to distinguish millions of different colors, but commonly use only a restricted number of color names when communicating about all these colors. For example, parts of a banana may be darker and less saturated due to shading; parts may also be more yellow-greenish or more yellow-orangish. Yet we perceive all these different shades of colors as belonging to the
Christoph Witzel
Colorizer Slider
Science Conference Proceedings (OSTI)
... The table is tab delimited and can be cut and pasted into a spreadsheet. ... Add color - Splits a color band where you click, changing the right part of ...
Color Management for Color Facsimile
We propose a color management system for the color facsimile. It consists of protocols for the colorimetric calibration of the scanner and the printer by establishing the relationships between the device-dependent color coordinates and the device-independent CIELAB color space. The scanner calibration is based on 3rd order polynomial regression techniques. The printer calibration uses 3D triangulation techniques, which gives us high flexibility and which allows us to apply different color gamut mapping techniques in an efficient way. The online color transformations are calculated by a tetrahedral interpolator using 3D look-up tables provided by the calibration algorithms.
Jon Yngve Hardeberg; Francis Schmitt; Ingeborg Tastl; Hans Brettel; Jean-pierre Crettez
Flower Colors
Flower Colors Flower Colors Name: hyojung Location: N/A Country: N/A Date: N/A Question: Why all the flowers have the different colors? Replies: Flower colors are mainly attractive to insects, different colors attract different insects for pollination; many insects can see ultraviolet wavelengths as well, and some flowers look very different when seen in ultraviolet. J. Elliott Hi Kang! Because of biodiversity. The life in earth, both vegetal and animal, evoluted under different circonstances, environment, time and rate, weather, following different trends during all the time since life begun. That is why it has so many species, so diverse between themselves The actual colors are due to pigments, that are chemical compounds. And let's be thankful to nature that gave us such colorful world...
Color Spinners
Color Spinners Color Spinners How can you make green if all you have is yellow and blue? Mix them together! A color spinner is a device that lets you mix different colors together by spinning a disk of paper that you color. A disk that is part blue and part yellow will look green when spun quickly enough! Does it matter how much of the disk is yellow and how much is blue? What happens if the yellow and blue sections are strangely shaped? What happens if you use different colors? Experiment and find out! It's also fun to put a blank disk and color it while it is spinning. See what kind of neat patterns you can make! Download this Activity Minimum Materials Needed for Construction: - Small, Direct Current (DC) motor - 12" of insulated, copper wire - Batteries - Magic markers
Supersymmetric color superconductivity
Supersymmetric Color Superconductivity 1 arXiv:hep-patterns such as color superconductivity and color-?avortional method in color superconductivity, namely � ? ?. In
Harnik, Roni; Larson, Daniel T.; Murayama, Hitoshi
Color imaging
The study of color combines a unique mixture of physics and human visual perception, which in practice makes this seemingly straightforward topic challenging and often misunderstood. This course covers the basics of physical and perceptual processes, ...
Erik Reinhard; Greg Ward; Garrett Johnson
Urine color
Urine color Urine color Name: durwood Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: What color is urine supposed to be? What does it mean if it a different color? Replies: Urine typically is a shade of yellow. There are a few disorders which change the color of urine in a dramatic way. To be specific one should see their doctor. Generally when urine gets brown or Coke colored it suggests a liver or bile duct problem. Red urine can be blood or can look red from certain medicines. Black urine is classic for a genetic defect. The shades of yellow of urine are usually related to the concentrated of urine. psych Something that can really change the color of urine is the vitamin B2 (riboflavin). If you swallow a vitamin B2 supplement, and the amount is more than your body needs, the vitamin is excreted in the urine. The urine will be a VERY bright yellow - almost fluorescent (except it probably will not glow in the dark!). But there is nothing wrong with you when this happens - it is just your body getting rid of extra vitamin B2. Some health authorities use this as an example that taking large doses of vitamins only makes expensive urine. However, nutritionists who advocate large vitamin supplementation counter by saying that it is only when the excess amounts of vitamins spill over into the urine that you know for sure that your body is getting the maximum amount of the vitamins.
Autumn Color
Color Color Nature Bulletin No. 38 October 27, 1945 Forest Preserve District of Cook County Clayton F. Smith, President Roberts Mann, Supt. of Conservation AUTUMN COLOR This is a colorful fall; one oil the best in recent years. Folks who get a thrill out of masses of color have been reveling in the rich pageantry of the woodlands. It started about six weeks ago when the sumacs turned magenta and crimson. Gradually the Smaller species of trees and then the larger ones began to "turn". The leaves of the hard maple became a brilliant orange-yellow, the red maples scarlet, the hickory and the ash a rich yellow, the oaks mingled red-and-green, deep red, or even purple. Only such trees as the elms and sycamores turned a nondescript brown. In the southeastern portion Or Cook County the yellow of a few sassafras and the peculiar scarlet of a few sour gum trees punctuate the landscape. Along the banks oi the upper Des Plaines River the hard maples created a fairyland of beauty.
Property:Number of Color Cameras | Open Energy Information
Open Energy Info (EERE)
Color Cameras Color Cameras Jump to: navigation, search Property Name Number of Color Cameras Property Type Number Pages using the property "Number of Color Cameras" Showing 25 pages using this property. (previous 25) (next 25) A Alden Large Flume + 2 + Alden Small Flume + 2 + Alden Tow Tank + 2 + Alden Wave Basin + 2 + C Chase Tow Tank + 1 + Conte Large Flume + 5 + Conte Small Flume + 5 + D Davidson Laboratory Tow Tank + 2 + DeFrees Flume 1 + 5 + DeFrees Flume 2 + 5 + DeFrees Flume 3 + 5 + DeFrees Flume 4 + 5 + DeFrees Large Wave Basin + 5 + DeFrees Small Wave Basin + 5 + F Flood Fighting Research Facility + 1 + H Haynes Tow Tank + 6 + Haynes Wave Basin + 6 + Hinsdale Wave Basin 1 + 20 + Hinsdale Wave Basin 2 + 20 + M MIT Tow Tank + 1 + MMA Tugboat/ Barge/ Vessel + 1 +
Jefferson Lab Coloring Book
Programs and Events Search Education Privacy and Security Notice Jefferson Lab Coloring Book Use the multi-colored crayon on the left-hand side of the screen to select a color....
Color blind animals
not color blind. I believe that all the primates also see color as well as dogs, cats, some birds, fish, and insects. --- jade Apes and monkeys see color. So do bees, in a...
Programs and Events Search Education Privacy and Security Notice Jefferson Lab Coloring Book The Jefferson Lab Coloring Book, Quarks - More Than Meets the Eye, was written to help...
The Tower Shielding Facility: Its glorious past
The Tower Shielding Facility (TSF) is the only reactor facility in the US that was designed and built for radiation-shielding studies in which both the reactor source and shield samples could be raised into the air to allow measurements to be made without interference from ground scattering or other spurious effects. The TSF proved its usefulness as many different programs were successfully completed. It became active in work for the Defense Atomic Support Agency (DASA) Space Nuclear Auxiliary Power, Defense Nuclear Agency, Liquid Metal Fast Breeder Reactor Program, the Gas-Cooled and High-Temperature Gas-Cooled Reactor programs, and the Japanese-American Shielding Program of Experimental Research, just to mention a few of the more extensive ones. The history of the TSF as presented in this report describes the various experiments that were performed using the different reactors. The experiments are categorized as to the programs which they supported and placed in corresponding chapters. The experiments are described in modest detail, along with their purpose when appropriate. Discussion of the results is minimal, but references are given to more extensive topical reports.
Muckenthaler, F.J.
Radiation coloration resistant glass
SciTech Connect
A radiation coloration resistant glass is disclosed which is used in a radiation environment sufficient to cause coloration in most forms of glass. The coloration resistant glass includes higher proportions by weight of water and has been found to be extremely resistant to color change when exposed to such radiation levels. The coloration resistant glass is free of cerium oxide and has more than about 0.5% by weight water content. Even when exposed to gamma radiation of more than 10.sup.7 rad, the coloration resistant glass does not lose transparency.
Tomozawa, Minoru (Troy, NY); Watson, E. Bruce (Troy, NY); Acocella, John (Troy, NY)
Color and experimental physics
After a brief review of the color hypothesis and the motivations for its introduction, the experimental tests arare discussed. It is assumed that colored states have not been produced at present energies and only experimental tests which apply below the color threshold, when color is a ''hidden symmetry,'' are discussed. Some of these tests offer the possibility of distinguishing between quark models with fractional and integral quark charges. (auth)
Chanowitz, M.S.
Introduction to Color Superconductivity
At high nuclear density and small temperature, due to the asymptotic freedom property of Quantum ChromoDynamics and to the existence of an attractive channel in the color interaction, diquark condensates might be formed. Since these condensates break the color gauge symmetry, this phenomenon has the name of color superconductivity. In the last few years this has become a very active field of research. While a direct experimental test is still missing, color superconductivity might have implications in astrophysics because for some compact stars, e.g. pulsars, the baryon densities necessary for color superconductivity can probably be reached.
G. Nardulli
Chicken Egg Colors
Chicken Egg Colors Chicken Egg Colors Name: Jack Location: N/A Country: N/A Date: N/A Question: Why are eggs different colors? Some are white and some are brown. Also are these the only two colors eggs come in? Replies: Egg colors are determined by genetics. Brown chicken eggs is the original color, however, some hens were found to produce lighter eggs, and with time and breeding selection, white eggs became a reality. During the 50's white bread (bleached flour) and white eggs, and "white" became the symbol for and was accepted as the determination of "purity". It was not until the late 70's, that brown eggs were re-introduced into the market [widespread]. As far as the quality of the egg, it does not seem to be any difference. With the new technology, science probably could make the eggs come out any color!! But, why?
Plastics' Color Problem: How a New Device Will Prevent Waste | Department
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
Plastics' Color Problem: How a New Device Will Prevent Waste Plastics' Color Problem: How a New Device Will Prevent Waste Plastics' Color Problem: How a New Device Will Prevent Waste July 22, 2010 - 3:20pm Addthis This is a probe for use in an extruder, similar to the one being developed by Guided Wave of Rancho Cordova, Calif. | Photo courtesy of Guided Wave. This is a probe for use in an extruder, similar to the one being developed by Guided Wave of Rancho Cordova, Calif. | Photo courtesy of Guided Wave. What are the key facts? Commercial plastics made at 752 degrees Fahrenheit and 2,000 psi Conventional plastic color detectors break at high temps and pressures Plastics with incorrect colors, require rerunning production - wasting energy $250,000 DOE grant to support development of improved probe Color can make or break commercial plastics. And commercial or extruded
Digital color representation
DOE Patents (OSTI)
An image population having a large number of attributes is processed to form a display population with a predetermined smaller number of attributes which represent the larger number of attributes. In a particular application, the color values in an image are compressed for storage in a discrete lookup table (LUT) where an 8-bit data signal is enabled to form a display of 24-bit color values. The LUT is formed in a sampling and averaging process from the image color values with no requirement to define discrete Voronoi regions for color compression. Image color values are assigned 8-bit pointers to their closest LUT value whereby data processing requires only the 8-bit pointer value to provide 24-bit color values from the LUT. 4 figs.
White, J.M.; Faber, V.; Saltzman, J.S.
NIST Color and appearance
... The surface color of an object depends upon several factors � the spectral power distribution of the illuminant, the spectral ... Transmission density. ...
Testing hypergraph colorability
We study the problem of testing properties of hypergraphs. The goal of property testing is to distinguish between the case whether a given object has a certain property or is "far away" from the property. We prove that the fundamental problem of l-colorability ... Keywords: hypergraph algorithms, hypergraph coloring, hypergraphs, property testing
Artur Czumaj; Christian Sohler
Color of fall leaves
Color of fall leaves Color of fall leaves Name: macmillan Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: Why do leaves change color in the fall? Is the cold a contributing factor? What determines the ultimate color of a leaf? Is the change due to an absence of chlorophyll or the presence of something else? Replies: This will be a partial answer. The colors are due to chemicals called carotenes, the same chemicals that give rise to color of carrots. There are several and they have different colors. They are present in the leaves all of the time. We see them in the fall because the chlorophyll production in the leaves stops. I think it is due to the cooling, not directly the presence of freezing temperatures, it seems to depend on the plant. It would be a good experiment to see what events contribute to the changes. Clearly the amount of water in the plant contributes to the quality of the color.
Eye Color in Humans
Eye Color in Humans Eye Color in Humans Name: Kristi Location: N/A Country: N/A Date: N/A Question: The dominant characteristic is the one most likely to appear in the offspring. In human beings, brown is the dominant color for eyes. The children who inherit at least on dominant gene will have either brown, green, or hazel eyes. Only childten who inherit two recessive genes will have pure blue eyes. If there are eight children in the family, what color eyes will most of them have? Replies: http://www.newton.dep.anl.gov/archive.htm Search under eye color Steve Sample You answer is of course dependent on the genes of the parents. If both parents do not have the recessive gene, then no children will have light colored eyes. If one has a recessive gene and the other not, then still no children will have light color eyes and on the average 25% of the eight children could have the recessive gene. If both parents have the recessive gene, then 25% of the eight children could have light color eyes.
Cool Roof Colored Materials
Cool Roof Colored Materials Cool Roof Colored Materials Speaker(s): Hashem Akbari Date: May 29, 2003 - 12:00pm Location: Bldg. 90 Raising roof reflectivity from an existing 10-20% to about 60% can reduce cooling-energy use in buildings in excess of 20%. Cool roofs also result in a lower ambient temperature that further decreases the need for air conditioning and retards smog formation. Reflective roofing products currently available in the market are typically used for low-sloped roofs. For the residential buildings with steep-sloped roofs, non-white (colored) cool roofing products are generally not available and most consumers prefer colors other than white. In this collaborative project LBNL and ORNL are working with the roofing industry to develop and produce reflective, colored roofing products and make yhrm a market reality within three to
Color Blind Animals
Blind Animals Name: Hillary Location: NA Country: NA Date: NA Question: Are dogs and cats colorblind? If so what is the percentage? Are all animals color blind? Replies: yes,...
Crystalline Color Superconductivity
We give an introduction crystalline color superconductivity, arguing that it is likely to occur wherever quark matter in which color-flavor locking does not occur is found. We survey the properties of this form of quark matter, and argue that its presence in a compact star may result in pulsar glitches, and thus in observable consequences. However, elucidation of this proposal requires an understanding of the crystal structure, which is not yet in hand.
Krishna Rajagopal
Fermilab | Graphics Standards | Guidelines | Colors
Colors Colors Fermilab's core color is NAL blue, developed for Fermilab in the 1970s by the Rustoleum® paint company. NAL blue, Fermilab's core color, should be the main color for: Two-color applications with black ink on white paper. Logo/mark treatments when a color besides black is desirable. Primary communications from the lab Directorate. Primary communications from the Office of Communication. Multicolor treatments in all media that communicate a core Fermilab message. NAL Blue - R0 G51 B153 When more than one color is desired, the use of colors from Fermilabs recommended palette is strongly encouraged. The recommended palette is derived from the original selections of Robert Wilson and Angela Gonzales. The links below provide the colors nearest Pantone Matching System (PMS)
Wave Dragon
Overtopping Wave Devices Wave Dragon ApSLtd HWETTEI - Workshop October 26-28, 2005, Washington, DC Hydrokinetic Technologies Technical and Environmental Issues Workshop the Wave...
A process is given for coloring substantially colorless diamonds in the blue to blue-green range and comprises the steps of irradiating the colorless diamonds with electrons having an energy within the range 0.5 to 2 Mev to obtain an integrated electron flux of between 1 and 2 x 10/sup 18/ thc diamonds may be irradiated 1 hr when they take on a blue color with a slight green tint: After being heated at about 500 deg C for half an hour they become pure blue. Electrons within this energy range contam sufficient energy to displace the diamond atoms from their normal lattice sites into interstitial sites, thereby causing the color changes.
Dugdale, R.A.
color: DIVPOP; black: low;
color: DIVPOP; black: low; red: middle; green: high. Vesicle dynamcis · Maturation rate comparison black: low DIVPOP red: middle DIVPOP green: high DIVPOP · Quality of vesicles black: low death rate red: master; red: mutants; black: vesicle boundary. Neutral model Step division model Conclusions (1
Utrecht, Universiteit
Background Car Color and Safety
A frequently asked question of Foundation staff is "What is the safest car color?" Psychological studies show that color has an effect on behavior, and there are other studies about color and conspicuity, but there are very few studies examining the impact of car color on crash rates. "Colors can create conditions that can cause fatigue, increase stress, decrease visual perception, damage eyesight, increase possible worker errors, and negatively affect orientation and safety " (www.colormatters.com). Studies examining traditional color psychology find blue is relaxing and red increases heart rate and blood pressure. Color affects mood and people make purchasing decisions based on color. However, it seems unlikely that a person who dislikes the color orange, for example, would purposely crash into an orange vehicle. General studies have also been done to show the most visible colors for day and night; however, there are no studies directly addressing the relationship between car color (conspicuity) and crashes among passenger vehicles. The study below discusses colors for fire fighting equipment, and presumably it would have some relevance for passenger
unknown authors
Possibility of color magnetic superconductivity
Two aspects of quark matter at high density are addressed: one is color superconductivity and the other is ferromagnetism. We are mainly concerned with the latter and its relation to color superconductivity, which we call "color magnetic superconductivity". The relation of ferromagnetism and chiral symmetry restoration is also discussed.
Toshitaka Tatsumi; Tomoyuki Maruyama; Eiji Nakano
Precursor of Color Superconductivity
We investigate possible precursory phenomena of color superconductivity at finite temperature $T$ with an effective theory of QCD. It is found that the fluctuation of the diquark pair field exists with a prominent strength even well above the critical temperature $T_c$. We show that such a fluctuaiton forms a collective mode, the corresponding pole of which approaches the origin as $T$ is lowered to $T_c$ in the complex energy plane. We discuss the possible relevance of the precursor to the observables to be detected in heavy-ion collisions.
M. Kitazawa; T. Koide; T. Kunihiro; Y. Nemoto
False color viewing device
This invention consists of a viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching, the user`s eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.
Kronberg, J.W.
A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.
Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)
A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage. 7 figs.
Image capture system colors transforms
The goal of this paper is to simulate the colors transforms of the reflected light from an illuminated object that passes trough an image capture system. We are interested to see the colors differences at the output of each component from which the light ... Keywords: CIE standards, human eye response, lenses and filters transmittance, spectral images
Toadere Florin
Tone Dependent Color Error Diffusion
Conventional grayscale error di#usion halftoning produces worms and other objectionable artifacts. Tone dependent error di#usion #Li and Allebach# reduces these artifacts by controlling the di#usion of quantization errors based on the input graylevel. Li and Allebach design error #lter weights and thresholds for each #input# graylevel optimized based on a human visual system #HVS# model. This paper extends tone dependent error di#usion to color. In color error di#usion, what color to render becomes a major concern in addition to #nding optimal dot patterns. We present a visually optimum design approach for input level #tone# dependent error #lters #for each color plane#. The resulting halftones reduce traditional error di#usion artifacts and achieve greater accuracy in color rendition. 1.
Vishal Monga; Brian L. Evans
Expanding display color gamut beyond the spectrum locus,� Color Res
Abstract: Digital video and display media are at a �sweet spot � of growth with brighter and more colorful digital projectors and displays available seemingly every day. Much more is possible in achieving brighter and more vibrant colors, colors that may even transcend our typical experience in terms of dynamic range and an expanded gamut in the perceptual sense. If the full capabilities of these technologies to produce a fuller vis-ual experience are to be realized, new processing and encoding methodologies are re-quired. In this paper, the powers of adaptation and the CIECAM02 color appearance model are exploited to define perceptual gamut. The strategy of this methodology is, sim-ply and in effect, to �push down � the white point of the display and demonstrate, both empirically and with a limited set of images, a striking gamut expansion in the percep-tions of lightness, chroma, brightness, and colorfulness beyond the locus of pure, spectral color and the MacAdam Limits as observed with traditional display configurations. Key words: perceptual gamut, display color gamut, high dynamic range displays
Rodney L. Heckaman; Mark D. Fairchild
Light emitting diode color rendition properties.
??This paper discusses the color rendition capabilities of light emitting diodes (LEDs) and their relationship with the current standard for color rendition quality. The current� (more)
Hood, Sean
Wave Energy
Energy.gov (U.S. Department of Energy (DOE))
Wave energy technologies extract energy directly from surface waves or from pressure fluctuations below the surface. Renewable energy analysts believe there is enough energy in ocean waves to provide up to 2 terawatts of electricity. (A terawatt is equal to a trillion watts.)
China�s rapid economic growth of 10% per year has been accompanied by an annual energy growth rate of greater than 10% from 2001�2005. This in turn has led to the construction of 1 to 2 GWe of electrical generating capacity per week over the period
Mark D. Levine
Partial Deconfinement in Color Superconductivity
We analyze the fate of the unbroken SU(2) color gauge interactions for 2 light flavors color superconductivity at non zero temperature. Using a simple model we compute the deconfining/confining critical temperature and show that is smaller than the critical temperature for the onset of the superconductive state itself. The breaking of Lorentz invariance, induced already at zero temperature by the quark chemical potential, is shown to heavily affect the value of the critical temperature and all of the relevant features related to the deconfining transition. Modifying the Polyakov loop model to describe the SU(2) immersed in the diquark medium we argue that the deconfinement transition is second order. Having constructed part of the equation of state for the 2 color superconducting phase at low temperatures our results are relevant for the physics of compact objects featuring a two flavor color superconductive state.
F. Sannino; N. Marchal; W. Sch�fer
Ship Waves and Lee Waves
Three-dimensional internal trapped lee wave modes produced by an isolated obstacle in a stratified fluid are shown to have dynamics analogous to surface ship waves on water of finite depth. Two models which allow for vertical trapping of wave ...
R. D. Sharman; M. G. Wurtele
Color spaces in digital video
Whether it`s photography, computer graphics, publishing, or video; each medium has a defined color space, or gamut, which defines the extent that a given set of RGB colors can be mixed. When converting from one medium to another, an image must go through some form of conversion which maps colors into the destination color space. The conversion process isn`t always straight forward, easy, or reversible. In video, two common analog composite color spaces are Y`tjv (used in PAL) and Y`IQ (used in NTSC). These two color spaces have been around since the beginning of color television, and are primarily used in video transmission. Another analog scheme used in broadcast studios is Y`, R`-Y`, B`-Y` (used in Betacam and Mll) which is a component format. Y`, R`-Y`,B`-Y` maintains the color information of RGB but in less space. From this, the digital component video specification, ITU-Rec. 601-4 (formerly CCIR Rec. 601) was based. The color space for Rec. 601 is symbolized as Y`CbCr. Digital video formats such as DV, Dl, Digital-S, etc., use Rec. 601 to define their color gamut. Digital composite video (for D2 tape) is digitized analog Y`UV and is seeing decreased use. Because so much information is contained in video, segments of any significant length usually require some form of data compression. All of the above mentioned analog video formats are a means of reducing the bandwidth of RGB video. Video bulk storage devices, such as digital disk recorders, usually store frames in Y`CbCr format, even if no other compression method is used. Computer graphics and computer animations originate in RGB format because RGB must be used to calculate lighting and shadows. But storage of long animations in RGB format is usually cost prohibitive and a 30 frame-per-second data rate of uncompressed RGB is beyond most computers. By taking advantage of certain aspects of the human visual system, true color 24-bit RGB video images can be compressed with minimal loss of visual information. For example, humans `see` more white-to-black (luminance) detail then red, green, or blue color detail. Also, the eye is most sensitive to green colors. Taking advantage of this, both composite and component video allocates more bandwidth for the luma (Y`) signal than the chroma signals. Y`611 is composed of 59% green`, 30% red`, and 11% blue` (prime symbol denotes gamma corrected colors). This luma signal also maintains compatibility with black and white television receivers. Component digital video converts R`G`B` signals (either from a camera or a computer) to a monochromatic brightness signal Y` (referred here as luma to distinguish it from the CIE luminance linear- light quantity), and two color difference signals Cb and Cr. These last two are the blue and red signals with the luma component subtracted out. As you know, computer graphic images are composed of red, green, and blue elements defined in a linear color space. Color monitors do not display RGB linearly. A linear RGB color space image must be gamma corrected to be displayed properly on a CRT. Gamma correction, which is approximately a 0.45 power function, must also be employed before converting an RGB image to video color space. Gamma correction is defined for video in the international standard: ITU-Rec. BT.709-4. The gamma correction transform is the same for red, green, and blue. The color coding standard for component digital video and high definition video symbolizes gamma corrected luma by Y`, the blue difference signal by Cb (Cb = B` -Y`), and the red color difference signal by Cr (Cr = R` - Y`). Component analog HDTV uses Y`PbPr. To reduce conversion errors, clip in R`G`B`, not in Y`CbCr space. View video on a video monitor, computer monitor phosphors are wrong. Use a large word size (double precision) to avoid warp around, the0232n round the results to values between 0 and 255. And finally, recall that multiplying two 8- bit numbers results in a 16-bit number, so values need to be clipped to 8-bits.
Gaunt, R.
Electroweak Baryogenesis and Colored Scalars
We consider the 2-loop finite temperature effective potential for a Standard Model-like Higgs boson, allowing Higgs boson couplings to additional scalars. If the scalars transform under color, they contribute 2-loop diagrams to the effective potential that include gluons. These 2-loop effects are perhaps stronger than previously appreciated. For a Higgs boson mass of 115 GeV, they can increase the strength of the phase transition by as much as a factor of 3.5. It is this effect that is responsible for the survival of the tenuous electroweak baryogenesis window of the Minimal Supersymmetric Standard Model. We further illuminate the importance of these 2-loop diagrams by contrasting models with colored scalars to models with singlet scalars. We conclude that baryogenesis favors models with light colored scalars. This motivates searches for pair-produced di-jet resonances or jet(s) + = E{sub T}.
Cohen, Timothy; /SLAC /Michigan U., MCTP; Pierce, Aaron; /Michigan U., MCTP
Lowering Color Temperature of Y3Al5O12:Ce3+ White Light
to light bulbs, which require high durability and low energy consumption. How- ever, for warm white indoorLowering Color Temperature of Y3Al5O12:Ce3+ White Light Emitting Diodes Using Reddish Light light emitting diodes LEDs coated with a single phosphor is realized by employing a tunable short wave
Lee, Yong-Hee
Manhattan Project: Trinity (Color Photograph)
Office of Scientific and Technical Information (OSTI)
(COLOR PHOTOGRAPH) (COLOR PHOTOGRAPH) Trinity Test Site (July 16, 1945) Resources > Photo Gallery Trinity, July 16, 1945 (This is the page for the photograph only; see "The Trinity Test" for more information about the test itself.) The photo is courtesy Los Alamos National Laboratories; it is reproduced on the front cover of Los Alamos: Beginning of an Era, 1943-1945 (Los Alamos: Public Relations Office, Los Alamos Scientific Laboratory, ca. 1967-1971). The inside of the front cover describes the history of the photograph this way: Although colored movies were taken of the Trinity test, they were of poor quality and have since deteriorated. This cover photograph, also showing the ravages of time, is the only existing color shot of the test. It was taken, surprisingly enough, by an amateur using his own camera. Jack Aeby, now [ca. 1967-1971] of H-6, was working at Trinity with Emilio Segrè studying delayed gamma rays. Segrè secured permission for Aeby to carry his camera to the site to record the group's activities. Came the test and, as Aeby says, 'it was there so I shot it.' The picture was taken from just outside Base Camp with a Perfex 33 camera using 33 mm film. The photograph provided the basis for the Theoretical Division's earliest calculations of the Trinity weapon's yield and was shortly confiscated by the Army and first published after the announcement was made of the bombing of Japan.
EERE Roofus' Solar and Efficient Home: Color Roofus
Color Roofus Print out this picture and color in Roofus and his dog house. Coloring page of Roofus and his house....
BLM Color Country District Office | Open Energy Information
Color Country District Office Jump to: navigation, search Name BLM Color Country District Office Parent Organization BLM Place Cedar City, Utah References BLM Color Country...
Image Source Separation Using Color Channel Dependencies
We investigate the problem of source separation in images in the Bayesian framework using the color channel dependencies. As a case in point we consider the source separation of color images which have dependence between its components. A Markov Random ...
Koray Kayabol; Ercan E. Kuruoglu; Bulent Sankur
Two key questions about color superconductivity
We pose two key questions about color superconductivity: What are the effects of the large strange quark mass, and what are the observable consequences of color superconductivity? Motivated by the first question, we study ...
Kundu, Joydip, 1977-
BCS-Bose Crossover in Color Superconductivity
It is shown that the onset of the color superconducting phase occurs in the BCS-BE crossover region.
B. O. Kerbikov
Color Superconductivity: Symmetries and Effective Lagrangians
I briefly review the symmetries and the associated low energy effective Lagrangian for two light flavor Color Superconductivity (2SC).
Francesco Sannino
Unsupervised multiscale segmentation of color images
This paper proposes a new multiresolution technique for color image representation and segmentation, particularly suited for noisy images. A decimated wavelet transform is initially applied to each color channel of the image, and a multiresolution representation ... Keywords: Color images, Multiresolution, Region merging, Segmentation, Watersheds, Wavelets
Cl�udio Rosito Jung
Color models for outdoor machine vision
This study develops models for illumination and surface reflectance for use in outdoor color vision, and in particular for predicting the color of surfaces under outdoor conditions. Existing daylight and reflectance models have limitations that reduce ... Keywords: color, daylight, outdoor images, photometric function, reflectance model
Shashi D. Buluswar; Bruce A. Draper
A Study of Tabu Search for Coloring Random 3-Colorable Graphs Around the Phase Transition
The authors present an experimental investigation of tabu search (TS) to solve the 3-coloring problem (3-COL). Computational results reveal that a basic TS algorithm is able to find proper 3-colorings for random 3-colorable graphs with up to 11000 vertices ... Keywords: 3-Coloring, Phase Transitions, Random Graphs, TS Algorithm, Tabu Search
Jin-Kao Hao; Jean-Philippe Hamiez; Fred W. Glover
Color naming models for color selection, image editing and palette design
Our ability to reliably name colors provides a link between visual perception and symbolic cognition. In this paper, we investigate how a statistical model of color naming can enable user interfaces to meaningfully mimic this link and support novel interactions. ... Keywords: color modeling, color names, image editing, palette design, perception, visualization
Jeffrey Heer; Maureen Stone
A description of the target wave-function encoded in the source terms
We argue that the gauge invariant source terms in the formalism of the Color Glass Condensate (CGC) should properly describe the target wave-function if the microscopic structure is concerned in the regime where the parton distribution is not quite dense. The quantum property of color charge density is incorporated in the quantum weight function defined with the source terms. We sketch that the logarithmic source terms encompass a meaningful picture of the microscopic structure of the target wave-function.
Kenji Fukushima
LightBox -Exploring Interaction Modalities with Colored Light
-bright multi- colored light-emitting diodes (LEDs) of our system can generate any visible lighting color
... blue the low order byte. (eg: 255 is bright blue, (ash 255 8 = 65280 = 255 * 2^8) is bright green, etc. The image array of ...
Color Superconductivity in Asymmetric Matter
The influence of different chemical potential for different flavors on color superconductivity is analyzed. It is found that there is a first order transition as the asymmetry grows. This transition proceeds through the formation of bubbles of low density, flavor asymmetric normal phase inside a high density, superconducting phase with a gap {\\it larger} than the one found in the symmetric case. For small fixed asymmetries the system is normal at low densities and superconducting only above some critical density. For larger asymmetries the two massless quarks system stays in the mixed state for arbitrarily high densities.
Paulo F. Bedaque
Oceanic Internal Waves Are Not Weak Waves
It is shown that the oceanic internal wave field is too energetic by roughly two orders of magnitude to be treated theoretically as an assemblage of weakly interacting waves. This may be seen both from recent weak wave theoretical calculations ...
Greg Holloway
Demosaicing: image reconstruction from color ccd samples
A simplified color image formation model is used to construct an algorithm for image reconstruction from CCD sensors samples. The proposed method involves two successive steps. The first is motivated by Cok�s template matching technique, while the second step uses steerable inverse diffusion in color. Classical linear signal processing techniques tend to oversmooth the image and result in noticeable color artifacts along edges and sharp features. The question is how should the different color channels support each other to form the best possible reconstruction. Our answer is to let the edges support the color information, and the color channels support the edges, and thereby achieve better perceptual results than those that are bounded by the sampling theoretical limit.
Ron Kimmel
Multithreaded Algorithms for Graph Coloring
Graph algorithms are challenging to parallelize when high performance and scalability are primary goals. Low concurrency, poor data locality, irregular access pattern, and high data access to computation ratio are among the chief reasons for the challenge. The performance implication of these features is exasperated on distributed memory machines. More success is being achieved on shared-memory, multi-core architectures supporting multithreading. We consider a prototypical graph problem, coloring, and show how a greedy algorithm for solving it can be e*ectively parallelized on multithreaded architectures. We present in particular two di*erent parallel algorithms. The first relies on speculation and iteration, and is suitable for any shared-memory, multithreaded system. The second uses data ow principles and is targeted at the massively multithreaded Cray XMT system. We benchmark the algorithms on three di*erent platforms and demonstrate scalable runtime performance. In terms of quality of solution, both algorithms use nearly the same number of colors as the serial algorithm.
Catalyurek, Umit V.; Feo, John T.; Gebremedhin, Assefaw H.; Halappanavar, Mahantesh; Pothen, Alex
Electrically actuatable temporal tristimulus-color device
The electrically actuated light filter operates in a cyclical temporal mode to effect a tristimulus-color light analyzer. Construction is based on a Fabry-Perot interferometer comprised of a high-speed movable mirror pair and cyclically powered electrical actuators. When combined with a single vidicon tube or a monochrome solid state image sensor, a temporally operated tristimulus-color video camera is effected. A color-generated is accomplished when constructed with a companion light source and is a flicker-free colored-light source for transmission type display systems. Advantages of low cost and small physical size result from photolithographic batch-processing manufacturability.
Koehler, Dale R. (1332 Wagontrain Dr., Albuquerque, NM 87123)
Bird's Eggs - Their Size, Shape and Color
Search Engine Table of Contents Copyright Disclaimer Bird's Eggs - Their Size, Shape and Color Nature Bulletin No. 455-A April 29, 1972 Forest Preserve District of Cook...
Two key questions about color superconductivity.
??We pose two key questions about color superconductivity: What are the effects of the large strange quark mass, and what are the observable consequences of� (more)
A laboratory evaluation of color video monitors
Sandia National Laboratories has considerable experience with monochrome video monitors used in alarm assessment video systems. Most of these systems, used for perimeter protection, were designed to classify rather than to identify intruders. There is a growing interest in the identification function of security video systems for both access control and insider protection. Because color video technology is rapidly changing and because color information is useful for identification purposes, Sandia National Laboratories established a program to evaluate the newest relevant color video equipment. This report documents the evaluation of an integral component, color monitors. It briefly discusses a critical parameter, dynamic range, details test procedures, and evaluates the results.
Terry, P.L.
Guidelines for Using Color to Depict Meteorological Information: IIPS Subcommittee for Color Guidelines
Color has a long history of use for visually communicating weather information; however, the mapping of colors to meteorological features has been dictated, for the most part, by common practice and has remained undocumented throughout the ...
Planarity, colorability and minor games
Let m and b be positive integers and let F be a hypergraph. In an (m, b)Maker-Breaker game F two players, called Maker and Breaker, take turns selecting previously unclaimed vertices of F. Maker selects m vertices permove and Breaker selects b vertices per move. The game ends when every vertex has been claimed by one of the players. Maker wins if he claims all the vertices of some hyperedge of F; otherwise Breaker wins. An (m, b) Avoider-Enforcer game F is played in a similar way. The only difference is in the determination of the winner: Avoider loses if he claims all the vertices of some hyperedge of F; otherwise Enforcer loses. In this paper we consider the Maker-Breaker and Avoider-Enforcer versions of the planarity game, the k-colorability game and the K_t-minor game.
Dan Hefetz; et al.
Color symmetric superconductivity in a phenomenological QCD model
In this paper, we construct a theory of the NJL-type where superconductivity is present, and yet the super-conducting state remains, in the average, color symmetric. This shows that the present approach to color superconductivity is consistent with color singlet-ness. Indeed, quarks are free in the deconfined phase, but the deconfined phase itself is believed to be a color singlet. The usual description of the color superconducting state violates color singlet-ness. On the other hand, the color superconducting state here proposed, is color symmetric in the sense that an arbitrary color rotation leads to an equivalent state, with precisely the same physical properties.
Henrik Bohr; Constan�a Provid�ncia; Jo�o da Provid�ncia
A biologically inspired technique for sampling of color images
Color space dimensionality possesses main problem in fast processing of color images so appropriate sampling of color images is very important. Unlike the existing statistical sampling algorithm, in this paper, a biologically inspired non-linear color ... Keywords: Buchsbaum non-linearity, human retinal receptors, just noticeable difference (JND), model of color vision, non-linear sampling
Rajesh B Raut; K. M. Bhurchandi
Color image segmentation by means of a similarity function
An interactive, semiautomatic image segmentation method is presented which, unlike most of the existing methods in the published literature, processes the color information of each pixel as a unit, thus avoiding color information scattering. The process ... Keywords: HSI parameter distances, adaptive color similarity function, color image segmentation, morphology in color images
Rodolfo Alvarado-Cervantes; Edgardo M. Felipe-Riveron; Luis P. Sanchez-Fernandez
Ocean Color Web | Data.gov
Ocean Color Web Ocean Color Web Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean » Data Ocean Color Web Dataset Summary Description A comprehensive image analysis package for the processing, display, analysis, and quality control of ocean color data. Tags {Ocean,"water color",spectrometer,"sea viewing",MODIS,"marine biology",NASA,GSFC,"Goddard Space Flight Center"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 15-Jan-2010 Publisher National Aeronautics and Space Administration Contact Name Contact Email email@example.com Unique Identifier NASA-1547
Long alternating cycles in edge-colored complete graphs
Let Knc denote a complete graph on n vertices whose edges are colored in an arbitrary way. And let ?(Knc) denote the maximum number of edges of the same ... Keywords: alternating cycle, color degree, edge-colored graph
Hao Li; Guanghui Wang; Shan Zhou
2013 Women of Color STEM Conference | Department of Energy
2013 Women of Color STEM Conference 2013 Women of Color STEM Conference October 17, 2013 9:45AM EDT to October 19, 2013 5:45PM EDT Dallas Texas Hosted by Women of Color magazine....
Factors influencing the neglect of color photography : 1860 to 1970
While the history of photographic color technology has been adequately discussed by E.J. Hall, Joseph Friedman, and Brian Coe, the relationship between complex tri-color systems and generalized use of color photography has ...
Milanowski, Stephen R
Wave�Wave Interaction of Unstable Baroclinic Waves
Two slightly unstable baroclinic waves in the two-layer Phillips model are allowed to interact with each other as well as the mean flow. A theory for small dissipation rates is developed to examine the role of wave�wave interaction in the ...
Joseph Pedlosky; Lorenzo M. Polvani
A hybrid parallel genetic algorithm approach for graph coloring
Graph-Coloring problem (GCP) deals with assigning labels (colors) to the vertices of a graph such that adjacent vertices do not get the same color. Coloring a graph with minimum number of colors is a well-known NP-hard problem. In this paper a new permutation ... Keywords: Graph coloring problem, message passing interface (MPI), migration model, parallel genetic algorithm, static wavelength assignment
S. N. Sivanandam; S. Sumathi; T. Hamsapriya
Assuming that density waves trigger star formation, and that young stars preserve the velocity components of the molecular gas where they are born, we analyze the effects that non-circular gas orbits have on color gradients across spiral arms. We try two approaches, one involving semianalytical solutions for spiral shocks, and another with magnetohydrodynamic (MHD) numerical simulation data. We find that, if non-circular motions are ignored, the comparison between observed color gradients and stellar population synthesis models would in principle yield pattern speed values that are systematically too high for regions inside corotation, with the difference between the real and the measured pattern speeds increasing with decreasing radius. On the other hand, image processing and pixel averaging result in systematically lower measured spiral pattern speed values, regardless of the kinematics of stellar orbits. The net effect is that roughly the correct pattern speeds are recovered, although the trend of higher measured OMEGA{sub p} at lower radii (as expected when non-circular motions exist but are neglected) should still be observed. We examine the MartInez-GarcIa et al. photometric data and confirm that this is indeed the case. The comparison of the size of the systematic pattern speed offset in the data with the predictions of the semianalytical and MHD models corroborates that spirals are more likely to end at outer Lindblad resonance, as these authors had already found.
Martinez-Garcia, Eric E. [Centro de Investigaciones de Astronomia, Apartado Postal 264, Merida 5101-A (Venezuela, Bolivarian Republic of); Gonzalez-Lopezlira, Rosa A.; Gomez, Gilberto C., E-mail: firstname.lastname@example.com, E-mail: firstname.lastname@example.com, E-mail: email@example.com [Centro de Radioastronomia y Astrofisica, UNAM, Campus Morelia, Michoacan, C.P. 58089 (Mexico)
The Color Glass Condensate at RHIC
The Color Glass Condensate formalism and its application to high energy heavy ion collisions at RHIC are discussed. We argue that the RHIC data supports the view that the Color Glass Condensate provides the initial conditions for gold-gold collisions at RHIC while final state (Quark Gluon Plasma) effects are responsible for the high $p_t$ suppression in mid rapidity. At forward rapidities in deuteron-gold collisions, however, Color Glass Condensate is the underlying physics of the observed suppression of the particle spectra and their centrality dependence.
Jamal Jalilian-Marian
Some aspects of color superconductivity: an introduction
A pedagogical introduction to color superconductivity in the weak coupling limit is given. The focus is on the basic tools of thermal field theory necessary to compute observables of color superconductivity. The rich symmetry structure and symmetry breaking patterns are analyzed on the basis of the Anderson-Higgs mechanism. Some techniques can also be applied for computing neutrino processes in compact stars. As an example, we show how to obtain the neutrino emissivity for Urca processes in neutron stars by computing the polarization tensor of the W-boson. We also illustrate how a spin-1 color superconducting phase generates an anisotropic neutrino emissions in compact stars.
Qun Wang
Geostrophic Shock Waves
Organized depth discontinuities involving a balance between steepening and dissipation are usually referred to as shock waves. An analytical �educed gravity� model is used to examine a special kind of shock wave. The wave under study is a depth ...
Doron Nof
The Sandia Wave Reflector
The Sandia wave reflector is a magnetic conductor for wireless transmissions near 433 MHz. The device reflects perpendicular electromagnetic waves in-phase and suppresses surface waves resulting in improved gain performance and effective operation ...
A Thunderstorm Bow Wave
The thunderstorm solitary gust or bow wave, observed by Doviak and Ge, is examined from the viewpoint of boundary layer wave theory. It is concluded that all its well defined characteristics are consistently modeled as a bow wave of ducted ...
G. Chimonas; Carmen J. Nappo
Color symmetrical superconductivity in a schematic nuclear quark model
In this note, a novel BCS-type formalism is constructed in the framework of a schematic QCD inspired quark model, having in mind the description of color symmetrical superconducting states. The physical properties of the BCS vacuum (average numbers of quarks of different colors) remain unchanged under an arbitrary color rotation. In the usual approach to color superconductivity, the pairing correlations affect only the quasi-particle states of two colors, the single particle states of the third color remaining unaffected by the pairing correlations. In the theory of color symmetrical superconductivity here proposed, the pairing correlations affect symmetrically the quasi-particle states of the three colors and vanishing net color-charge is automatically insured. It is found that the groundstate energy of the color symmetrical sector of the Bonn model is well approximated by the average energy of the color symmetrical superconducting state proposed here.
Henrik Bohr; Jo�o da Provid�ncia
Water Surface Topography Retrieved from Color Images
Submerged objects viewed through wavy water surfaces appear distorted by refraction. An imaging system exploiting this effect is implemented using a submerged planar light source designed so that color images reveal features of small-amplitude ...
Jeffrey Koskulics; Steven Englehardt; Steven Long; Yongxiang Hu; Matteo Ottaviani; Knut Stamnes
Dichromatic color representations for complex display systems
New display technologies have begun to provide more innovative and potentially powerful methods to present information to a viewer. However, many of these techniques struggle to deliver accurate full color. In this paper, we address this difficulty by ...
Mark S. Peercy; Lambertus Hesselink
Multiresolution histogram analysis for color reduction
A new technique for color reduction is presented, based on the analysis of the histograms of an image at different resolutions. Given an input image, lower resolution images are generated by using a scaling down interpolation method. Then, peaks and ...
Giuliana Ramella; Gabriella Sanniti Di Baja
Photochromic sculpture: volumetric color-forming pixels
In contrast to light-emitting displays like plasma display panels (PDPs) and liquid crystal displays (LCDs), color-forming displays like "E-Ink" which displays information by reflecting surrounding light are being actively researched as a technology ...
Tomoko Hashida; Yasuaki Kakehi; Takeshi Naemura
A Quaternion Framework for Color Image Smoothing and Segmentation
In this paper, we present feature/detail preserving models for color image smoothing and segmentation using the Hamiltonian quaternion framework. First, we introduce a novel quaternionic Gabor filter (QGF) which can combine the color channels and the ... Keywords: Color image segmentation, Color image smoothing, Continuous mixture models, Directional distributions, Matrix-Fisher distribution, Quaternion Gabor filter, Quaternions, Watson distribution, von Mises distribution
�zlem N. Subakan; Baba C. Vemuri
Color-accurate underwater imaging using perceptual adaptive illumination
Capturing color in water is challenging due to the heavy non-uniform attenuation of light in water across the visible spectrum, which results in dramatic hue shifts toward blue. Yet observing color in water is important for monitoring and surveillance ... Keywords: Accurate colors, Adaptive illumination, Color rendering index, Underwater imaging
Iuliu Vasilescu; Carrick Detweiler; Daniela Rus
New and Underutilized Technology: Colored Paint | Department of Energy
Colored Paint Colored Paint New and Underutilized Technology: Colored Paint October 8, 2013 - 2:51pm Addthis The following information outlines key deployment considerations for colored paints within the Federal sector. Benefits Colored paints have the potential to optimize heat reflective properties or decrease heat absorptive applications. New technologies allow the paint to be any color within the visible spectrum with either the absorptive or the reflective properties optimized for specific applications (disassociating it from the traditional color properties). Application Colored paints are appropriate for deployment within most building categories. Key Factors for Deployment Colored paint technologies and applications have come quite far. One application example for colored paints is to reduce the heat load on a wall
Fundamental Guided Wave Metrology
Fundamental Guided Wave Metrology. Summary: ... The program is focused on fundamental measurement research for microwave parameters. ...
The Particle Adventure | What holds it together? | Color charge
The Standard Model > What holds it together? > Color charge The Standard Model > What holds it together? > Color charge Color charge Quarks and gluons are color-charged particles. Just as electrically-charged particles interact by exchanging photons in electromagnetic interactions, color-charged particles exchange gluons in strong interactions. When two quarks are close to one another, they exchange gluons and create a very strong color force field that binds the quarks together. The force field gets stronger as the quarks get further apart. Quarks constantly change their color charges as they exchange gluons with other quarks. How does color charge work? There are three color charges and three corresponding anticolor (complementary color) charges. Each quark has one of the three color charges and each antiquark has one of the three anticolor charges. Just as a mix of red, green, and blue light yields white light, in a baryon a combination of "red," "green," and "blue" color charges is color neutral, and in an antibaryon "antired," "antigreen," and "antiblue" is also color neutral. Mesons are color neutral because they carry combinations such as "red" and "antired."
Color Changes in Fish, Frogs and Lizards
Color Changes in Fish, Frogs and Lizards Color Changes in Fish, Frogs and Lizards Nature Bulletin No. 706 February 23, 1963 Forest Preserve District of Cook County Seymour Simon, President David H. Thompson, Senior Naturalist COLOR CHANGES IN FISH, FROGS AND LIZARDS Proverbially, the chameleon changes its color to suit every mood or situation. Hence the word is also an expression of contempt for a person who is fickle or changeable in character. That little lizard which is peddled at circuses or sold in pet shops under the name of "chameleon" is not the true Chameleon of the Old World tropics but the Anole, a native of the warm humid regions of our southeastern states. It is able to change from green to brown, or reverse, with some intermediate colors. Ordinarily it is pale green when quite warm or after it has been in the dark. In bright light or at low temperatures it is brown. Contrary to popular belief a brown anole may be found on a green leaf or a green one on brown bark.
Philips Color Kinetics | Open Energy Information
Color Kinetics Color Kinetics Jump to: navigation, search Name Philips Color Kinetics Address 3 Burlington Woods Drive, 4th Floor Place Burlington, Massachusetts Zip 01803 Sector Efficiency Product LED lighting systems Website http://www.colorkinetics.com/ Coordinates 42.5005723°, -71.2042619° 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":42.5005723,"lon":-71.2042619,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
On Color Superconductivity in External Magnetic Field
We study color superconductivity in external magnetic field. We discuss the reason why the mixing angles in color-flavor locked (CFL) and two-flavor superconductivity (2SC) phases are different despite the fact that the CFL gap goes to the 2SC gap for $m_s \\to \\infty$. Although flavor symmetry is explicitly broken in external magnetic field, we show that all values of gaps in their coset spaces of possible solutions in the CFL phase are equivalent in external magnetic field.
E. V. Gorbar
Watching Gravitational Waves
In the vicinity of merging neutron strar binaries or supernova remnants, gravitational waves can interact with the prevailing strong magnetic fields. The resulting partial conversion of gravitational waves into electromagnetic (radio) waves might prove to be an indirect way of detecting gravitational waves from such sources. Another interesting interaction considered in this article is the excitation of magnetosonic plasma waves by a gravitational wave passing through the surrounding plasma. The transfer of gravitational wave energy into the plasma might help to fuel the `fireball' of electromagnetic radiation observed in gamma ray bursts. In the last section of the article, a dispersion relation is derived for such magnetosonic plasma waves driven by a gravitational wave.
Joachim Moortgat
Deterministic distributed vertex coloring in polylogarithmic time
Consider an n-vertex graph G = (V,E) of maximum degree ?, and suppose that each vertex v ? V hosts a processor. The processors are allowed to communicate only with their neighbors in G. The communication ... Keywords: arbdefective-coloring, arboricity, partial-orientation
Leonid Barenboim; Michael Elkin
Quark-gluon correlations and Color Polarizabilities
We discuss the present status of the twist-3 matrix element in the spin srtructure of the nucleon and describe two proposed experiments that will improve on the precision of the present measurements of the twist-3 and twist-4 matrix elements for both the proton and the neutron and consequently will improve on our knowledge of the �color polarizabilitites� in the nucleon.
Zein-Eddine Meziani
Color superconductivity and the strange quark
At ultra-high density, matter is expected to form a degenerate Fermi gas of quarks in which there is a condensate of Cooper pairs of quarks near the Fermi surface: color superconductivity. In these proceedings I review some of the underlying physics, and discuss outstanding questions about the phase structure of ultra-dense quark matter.
Mark G Alford
Color selective photodetector and methods of making
A photoelectric device, such as a photodetector, can include a semiconductor nanowire electrostatically associated with a J-aggregate. The J-aggregate can facilitate absorption of a desired wavelength of light, and the semiconductor nanowire can facilitate charge transport. The color of light detected by the device can be chosen by selecting a J-aggregate with a corresponding peak absorption wavelength.
Walker, Brian J.; Dorn, August; Bulovic, Vladimir; Bawendi, Moungi G.
Light and Color in Nature -Scattering Effects -
in reactor, nuclear bomb · Limit: Diffusion Theory Very many scattering events Effective anisotropy · Strongly wavelength-dependent (1/4) WS03/04: Light and Color in Nature Scattering Scattering Theory equation · Astrophysics Radiation density inside stars · Nuclear physics Neutron density & velocity
Assarsson, Ulf
Gravity Waves from Thunderstorms
Gravity waves generated by severe thunderstorms in the eastern Ohio-Pennsylvania area were recorded by an array of microbarovariographs at Palisades, New York and by standard microbarographs across northeastern United States. The waves were ...
Nambath K. Balachandran
The rules of perception : American color science, 1831-1931
Although vision was seldom studied in Antebellum America, color and color perception became a critical field of scientific inquiry in the United States during the Gilded Age and progressive era. Through a historical ...
Rossi, Michael Paul, Ph. D. Massachusetts Institute of Technology
Relevance Feedback Techniques for Color-based Image Retrieval
Color has been widely used in content-based image retrieval systems. The problem with using color is that its representation is low level and hence its retrieval effectiveness is limited. This paper investigates techniques to improving the effectiveness ...
T. S. Chua; W. C. Low; C. X. Chu
Capturing color in water is challenging due to the heavy non-uniform attenuation of light in water across the visible spectrum, which results in dramatic hue shifts toward blue. Yet observing color in water is important ...
Vasilescu, Iuliu
An empirical comparison of some approximate methods for graph coloring
The Graph Coloring Problem (GCP) is a classical NP-complete problem for which several approximate solution algorithms have been proposed: Brelaz algorithm, simulated annealing (SA), ant colony optimization (ACO). This paper reports empirical results ... Keywords: graph coloring, gravitational swarm
Israel Rebollo-Ruiz; Manuel Gra�a
Vegetable Oil for Color Only Laboratory Proficiency Testing Program
Lab Proficiency Testing service for Vegetable Oil for Color Only. Sample Includes soybean oil. Vegetable Oil for Color Only Laboratory Proficiency Testing Program Laboratory Proficiency Program (LPP) aocs applicants certified chemist chemists Lab laborat
Electron beam irradiation of gemstone for color enhancement
Numerous treatment of gemstones has been going on for hundreds of years for enhancing color and clarity of gems devoid of these attributes. Whereas previous practices included fraudulent or otherwise processes to achieve the color enhancement
Sarada Idris; Zulkafli Ghazali; Siti A'iasah Hashim; Shamshad Ahmad; Mohd Suhaimi Jusoh
A novel technique for the production of cool colored concrete...
green and blue to prepare 24 cool colored prototype tiles and 24 cool colored prototypes shingles. The solar reflectances of the tiles ranged from 0.26 (dark brown; CIELAB...
Cinematic color: from your monitor to the big screen
Color affects many areas of the computer-graphics pipeline, From texture painting to lighting, rendering, compositing, image display, and the theater, handling color is a tricky problem. Tired of getting your images right on the monitor only to have ...
Jeremy Selan
The Effect of Wave Breaking on the Wave Energy Spectrum
The effect of wave breaking on the wave energy spectral shape is examined. The Stokes wave-breaking criterion is first extended to random waves and a breaking wave model is established in which the elevation of breaking waves is expressed in ...
C. C. Tung; N. E. Huang
A visual language for color-based painting retrieval
The availability of large image databases is emphasizing the relevance of filters, which permit one to focus on a small subset of data. Visual specification of such filters provides a natural way to express content-oriented queries. To support a high ... Keywords: art, color arrangement, color quality, color semantics, color-based painting retrieval, content-oriented queries, data subsets, expressiveness, filters, grammar, large image databases, symbolic representation, visual language, visual querying paradigm, visual specification
J. M. Corridoni; A. Del Bimbo; S. De Magistris; E. Vicario
Underwater Color Constancy : Enhancement of Automatic Live Fish Recognition
Underwater Color Constancy : Enhancement of Automatic Live Fish Recognition M. Chambah, D. Semani-mail: firstname.lastname@example.com ABSTRACT We present in this paper some advances in color restoration of underwater images, especially with regard to the strong and non uniform color cast which is typical of underwater
Paris-Sud XI, Université de
Solar infrared colors provide powerful constraints on the stellar effective temperature scale, but they must be measured with both accuracy and precision in order to do so. We fulfill this requirement by using line-depth ratios to derive in a model-independent way the infrared colors of the Sun, and we use the latter to test the zero point of the Casagrande et al. effective temperature scale, confirming its accuracy. Solar colors in the widely used Two Micron All Sky Survey (2MASS) JHK{sub s} and WISE W1-4 systems are provided: (V - J){sub Sun} = 1.198, (V - H){sub Sun} = 1.484, (V - K{sub s} ){sub Sun} = 1.560, (J - H){sub Sun} = 0.286, (J - K{sub s} ){sub Sun} = 0.362, (H - K{sub s} ){sub Sun} = 0.076, (V - W1){sub Sun} = 1.608, (V - W2){sub Sun} = 1.563, (V - W3){sub Sun} = 1.552, and (V - W4){sub Sun} = 1.604. A cross-check of the effective temperatures derived implementing 2MASS or WISE magnitudes in the infrared flux method confirms that the absolute calibration of the two systems agrees within the errors, possibly suggesting a 1% offset between the two, thus validating extant near- and mid-infrared absolute calibrations. While 2MASS magnitudes are usually well suited to derive T{sub eff}, we find that a number of bright, solar-like stars exhibit anomalous WISE colors. In most cases, this effect is spurious and can be attributed to lower-quality measurements, although for a couple of objects (3% {+-} 2% of the total sample) it might be real, and may hint at the presence of warm/hot debris disks.
Casagrande, L.; Asplund, M. [Research School of Astronomy and Astrophysics, Mount Stromlo Observatory, Australian National University, ACT 2611 (Australia); Ramirez, I. [McDonald Observatory and Department of Astronomy, University of Texas at Austin, 1 University Station, C1400 Austin, TX 78712-0259 (United States); Melendez, J., E-mail: firstname.lastname@example.com [Departamento de Astronomia do IAG/USP, Universidade de Sao Paulo, Rua do Matao 1226, Sao Paulo, 05508-900 SP (Brazil)
Probing Color Octet Electrons at the LHC
Models with quark and lepton compositeness predict the existence of colored partners of the Standard Model leptons. In this paper we study the LHC phenomenology of a charged colored lepton partner, namely the color octet electron, $e_8$ in an effective theory framework. We explore various mechanisms for resonant production of $e_8$'s. With the pair production channel the 14 TeV LHC can probe $e_8$'s with masses up to 2.5 TeV (2.8 TeV) with 100 fb$^{-1}$ (300 fb$^{-1}$) of integrated luminosity. A common feature in all the resonant production channels is the presence of two high $p_T$ electrons and at least one high $p_T$ jet in the final state. Using this feature, we implement a search method where the signal is a combination of pair and single production events. This method has potential to increase the LHC reach significantly. Using the combined signal we estimate the LHC discovery potential for the $e_8$'s. Our analysis shows that the LHC with 14 TeV center-of-mass energy and 100 fb$^{-1}$ (300 fb$^{-1}$) of integrated luminosity can probe $e_8$'s with masses up to 3.4 TeV (4 TeV) for the compositeness scale of 5 TeV.
Tanumoy Mandal; Subhadip Mitra
Color Diffusion and Conductivity in a Quark-Gluon Plasma
Color diffusion is shown to be an important dissipative property of quark-gluon plasmas that rapidly damps collective color modes. We derive the characteristic color relaxation time scale, $t_c\\approx (3\\alpha_s T \\log(m_E/m_M ))^{-1}$, showing its sensitivity to the ratio of the static color electric and magnetic screening masses. This leads to a surprisingly small color conductivity, $\\sigma_c\\approx 2 T/\\log(m_E/m_M)$, which in fact vanishes in the semi-classical (1-loop) limit.
Alexei V. Selikhov; Miklos Gyulassy
Cycloidal Wave Energy Converter
This program allowed further advancing the development of a novel type of wave energy converter, a Cycloidal Wave Energy Converter or CycWEC. A CycWEC consists of one or more hydrofoils rotating around a central shaft, and operates fully submerged beneath the water surface. It operates under feedback control sensing the incoming waves, and converts wave power to shaft power directly without any intermediate power take off system. Previous research consisting of numerical simulations and two dimensional small 1:300 scale wave flume experiments had indicated wave cancellation efficiencies beyond 95%. The present work was centered on construction and testing of a 1:10 scale model and conducting two testing campaigns in a three dimensional wave basin. These experiments allowed for the first time for direct measurement of electrical power generated as well as the interaction of the CycWEC in a three dimensional environment. The Atargis team successfully conducted two testing campaigns at the Texas A&M Offshore Technology Research Center and was able to demonstrate electricity generation. In addition, three dimensional wave diffraction results show the ability to achieve wave focusing, thus increasing the amount of wave power that can be extracted beyond what was expected from earlier two dimensional investigations. Numerical results showed wave cancellation efficiencies for irregular waves to be on par with results for regular waves over a wide range of wave lengths. Using the results from previous simulations and experiments a full scale prototype was designed and its performance in a North Atlantic wave climate of average 30kW/m of wave crest was estimated. A full scale WEC with a blade span of 150m will deliver a design power of 5MW at an estimated levelized cost of energy (LCOE) in the range of 10-17 US cents per kWh. Based on the new results achieved in the 1:10 scale experiments these estimates appear conservative and the likely performance at full scale will exceed this initial performance estimates. In advancing the Technology Readiness Level (TRL) of this type of wave energy converter from 3 to 4, we find the CycWEC to exceed our initial estimates in terms of hydrodynamic performance. Once fully developed and optimized, it has the potential to not just outperform all other WEC technologies, but to also deliver power at a lower LCOE than competing conventional renewables like wind and solar. Given the large wave power resource both domestically and internationally, this technology has the potential to lead to a large improvement in our ability to produce clean electricity at affordable cost.
Stefan G. Siegel, Ph.D.
Radiation waves can be detected by simultaneously measuring radiation- wave intensities at a plurality of space-distributed points and producing therefrom a plot of the wave intensity as a function of time. To this end. a detector system is provided which includes a plurality of nuclear radiation intensity detectors spaced at equal radial increments of distance from a source of nuclear radiation. Means are provided to simultaneously sensitize the detectors at the instant a wave of radiation traverses their positions. the detectors producing electrical pulses indicative of wave intensity. The system further includes means for delaying the pulses from the detectors by amounts proportional to the distance of the detectors from the source to provide an indication of radiation-wave intensity as a function of time.
Wouters, L.F.
electromagnetic wave travels through the rods along their axes it receives a 1/4 period of phase delay be- ... delay, creating positive interference that effectively
Trimodal steady water waves
We construct three-dimensional families of small-amplitude gravity-driven rotational steady water waves on finite depth. The solutions contain counter-currents and multiple crests in each minimal period. Each such wave generically is a combination of three different Fourier modes, giving rise to a rich and complex variety of wave patterns. The bifurcation argument is based on a blow-up technique, taking advantage of three parameters associated with the vorticity distribution, the strength of the background stream, and the period of the wave.
Mats Ehrnstr�m; Erik Wahl�n
RFI Comments - Wave Systems
... These attacks, such as those planted by rootkits ... PwC leveraged the power of TPMs to ... Wave EMBASSY� Remote Administration Server (ERAS) has ...
owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy�s National Nuclear Security Administration. SAND # 2013-8893 P WAVE REFLE TOR
Collapse of Alfven waves
The growth rates are calculated for the collapse of Alfven waves in a low-..beta.. plasma. The relationship to rf heating is discussed.(AIP)
Erokhin, N.S.; Moiseev, S.S.; Mukhin, V.V.
Energy Basics: Wave Energy
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Ocean Thermal Energy Conversion Tidal Energy Wave Energy...
Free-Wave Energy Dissipation in Experimental Breaking Waves
Several transient wave trains containing an isolated plunging or spilling breaker at a prescribed location were generated in a two-dimensional wave flume using an energy focusing technique. Surface elevation measurements of each transient wave ...
Eustorgio Meza; Jun Zhang; Richard J. Seymour
Resonantly Forced Rossby Waves
A shallow, rotating layer of fluid that supports Rossby waves is subjected to turbulent friction through an Ekman layer at the bottom and is driven by a wave that exerts a shear stress on the upper boundary and for which the phase approximate ...
John Miles
Fermilab Workshop for Prairie - Our Heartland: Biology Institute |
Biology Institute Biology Institute Fermilab Workshop for Prairie - Our Heartland: Biology Institute June 24, 2013 3:30PM EDT to June 28, 2013 5:30PM EDT Fermilab What was the Midwest like 200 years ago? The Prairie - Our Heartland is both an interdisciplinary ecology program including free field trips to Fermilab for upper elementary students and a professional development workshop for teachers. Tens of thousands of square miles of glorious color, waves of grass, and diverse animal populations inhabited what we now call home. How-and why-has this amazing ecosystem changed? Using observation, experience, inquiry, and critical thinking, convey the story of the prairie and westward expansion to your students. This program incorporates science, language arts, mathematics, social science, and more!
Fermilab Workshop for Prairie - Our Heartland: Beauty and Charm at Fermilab
Beauty and Charm at Beauty and Charm at Fermilab Fermilab Workshop for Prairie - Our Heartland: Beauty and Charm at Fermilab July 15, 2013 3:30PM EDT to July 19, 2013 5:30PM EDT Fermilab What was the Midwest like 200 years ago? The Prairie - Our Heartland is both an interdisciplinary ecology program including free field trips to Fermilab for upper elementary students and a professional development workshop for teachers. Tens of thousands of square miles of glorious color, waves of grass, and diverse animal populations inhabited what we now call home. How-and why-has this amazing ecosystem changed? Using observation, experience, inquiry, and critical thinking, convey the story of the prairie and westward expansion to your students. This program incorporates science, language arts, mathematics, social science, and more!
Fermilab Workshop for Prairie - Our Heartland: | Department of Energy
Fermilab Workshop for Prairie - Our Heartland: Fermilab Workshop for Prairie - Our Heartland: Fermilab Workshop for Prairie - Our Heartland: June 17, 2013 3:15PM EDT to June 19, 2013 5:15PM EDT Fermilab What was the Midwest like 200 years ago? The Prairie - Our Heartland is both an interdisciplinary ecology program including free field trips to Fermilab for upper elementary students and a professional development workshop for teachers. Tens of thousands of square miles of glorious color, waves of grass, and diverse animal populations inhabited what we now call home. How-and why-has this amazing ecosystem changed? Using observation, experience, inquiry, and critical thinking, convey the story of the prairie and westward expansion to your students. This program incorporates science, language arts, mathematics, social science, and more!
Fermilab Workshop for Prairie - Our Heartland: Particles and Prairies |
Particles and Particles and Prairies Fermilab Workshop for Prairie - Our Heartland: Particles and Prairies July 22, 2013 3:30PM EDT to July 26, 2013 4:30PM EDT Fermilab What was the Midwest like 200 years ago? The Prairie - Our Heartland is both an interdisciplinary ecology program including free field trips to Fermilab for upper elementary students and a professional development workshop for teachers. Tens of thousands of square miles of glorious color, waves of grass, and diverse animal populations inhabited what we now call home. How-and why-has this amazing ecosystem changed? Using observation, experience, inquiry, and critical thinking, convey the story of the prairie and westward expansion to your students. This program incorporates science, language arts, mathematics, social science, and more!
Fermilab Workshop for Prairie - Our Heartland: Insects at Work in Our World
Insects at Work in Insects at Work in Our World Fermilab Workshop for Prairie - Our Heartland: Insects at Work in Our World June 20, 2013 3:30PM EDT to June 21, 2013 5:30PM EDT Fermilab What was the Midwest like 200 years ago? The Prairie - Our Heartland is both an interdisciplinary ecology program including free field trips to Fermilab for upper elementary students and a professional development workshop for teachers. Tens of thousands of square miles of glorious color, waves of grass, and diverse animal populations inhabited what we now call home. How-and why-has this amazing ecosystem changed? Using observation, experience, inquiry, and critical thinking, convey the story of the prairie and westward expansion to your students. This program incorporates science, language arts, mathematics, social science, and more!
Fermilab Workshop for Prairie - Our Heartland: Chemistry Institutes |
Chemistry Institutes Chemistry Institutes Fermilab Workshop for Prairie - Our Heartland: Chemistry Institutes June 17, 2013 3:15PM EDT to June 21, 2013 5:15PM EDT Fermilab What was the Midwest like 200 years ago? The Prairie - Our Heartland is both an interdisciplinary ecology program including free field trips to Fermilab for upper elementary students and a professional development workshop for teachers. Tens of thousands of square miles of glorious color, waves of grass, and diverse animal populations inhabited what we now call home. How-and why-has this amazing ecosystem changed? Using observation, experience, inquiry, and critical thinking, convey the story of the prairie and westward expansion to your students. This program incorporates science, language arts, mathematics, social science, and more!
Wave Energy Conversion Technology
Wave Energy Conversion Technology Wave Energy Conversion Technology Speaker(s): Mirko Previsic Date: August 2, 2001 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Julie Osborn Scientists have been working on wave power conversion for the past twenty years, but recent advances in offshore and IT technologies have made it economically competitive. Sea Power & Associates is a Berkeley-based renewable energy technology company. We have developed patented technology to generate electricity from ocean wave energy using a system of concrete buoys and highly efficient hydraulic pumps. Our mission is to provide competitively priced, non-polluting, renewable energy for coastal regions worldwide. Mirko Previsic, founder and CEO, of Sea Power & Associates will discuss ocean wave power, existing technologies for its conversion into
Non-Markovianity of colored noisy channels
We address the non-Markovian character of noisy maps describing the interaction of a qubit with a random classical field. In particular, we evaluate trace- and capacity-based non-Markovianity measures for two relevant classes of environments showing non-Gaussian fluctuations, described respectively by random telegraph noise (RTN) and colored noise with spectra of the the form 1/f^\\alpha. We analyze the dynamics of both the trace distance and the quantum or entanglement assisted capacity, and show that the behaviour of non-Markovianity based on both measures is qualitatively similar. Our results show that environments with a spectrum that contains a relevant low-frequency contribution are generally non-Markovian. We also find that non-Markovianity of colored environments decreases when the number of fluctuators realizing the envinroment increases. Finally, we discuss how reliable transmission of information through a quantum channel subjected to random classical noise may be achieved by tailoring the channel length and properly engineering the structured environments.
C. Benedetti; M. G. A. Paris; S. Maniscalco
Color stable manganese-doped phosphors
A process for preparing color stable Mn.sup.+4 doped phosphors includes providing a phosphor of formula I; A.sub.x[MF.sub.y]:Mn.sup.+4 I and contacting the phosphor in particulate form with a saturated solution of a composition of formula II in aqueous hydrofluoric acid; A.sub.x[MF.sub.y]; II wherein A is Li, Na, K, Rb, Cs, NR.sub.4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; x is the absolute value of the charge of the [MF.sub.y] ion; and y is 5, 6 or 7. In particular embodiments, M is Si, Ge, Sn, Ti, Zr, or a combination thereof. A lighting apparatus capable of emitting white light includes a semiconductor light source; and a phosphor composition radiationally coupled to the light source, and which includes a color stable Mn.sup.+4 doped phosphor.
Lyons, Robert Joseph (Burnt Hills, NY); Setlur, Anant Achyut (Niskayuna, NY); Deshpande, Anirudha Rajendra (Twinsburg, OH); Grigorov, Ljudmil Slavchev (Sofia, BG)
Wave Mechanics without Probability
The behavior of monochromatic electromagnetic waves in stationary media is shown to be ruled by a frequency dependent function, which we call Wave Potential, encoded in the structure of the Helmholtz equation. Contrary to the common belief that the very concept of "ray trajectory" is reserved to the eikonal approximation, a general and exact ray-based Hamiltonian treatment, reducing to the eikonal approximation in the absence of Wave Potential, shows that its presence induces a mutual, perpendicular ray-coupling, which is the one and only cause of any typically wave-like phenomenon, such as diffraction and interference. Recalling, then, that the time-independent Schroedinger and Klein-Gordon equations (associating stationary "matter waves" to mono-energetic particles) are themselves Helmholtz-like equations, the exact, ray-based treatment developed for classical electromagnetic waves is extended - without resorting to statistical concepts - to the exact, trajectory-based Hamiltonian dynamics of mono-energetic point-like particles, both in the non-relativistic and in the relativistic case. The trajectories turn out to be perpendicularly coupled, once more, by an exact, stationary, energy-dependent Wave Potential, coinciding in the form, but not in the physical meaning, with the statistical, time-varying, energy-independent "Quantum Potential" of Bohm's theory, which views particles, just like the standard Copenhagen interpretation, as traveling wave-packets. These results, together with the connection which is shown to exist between Wave Potential and Uncertainty Principle, suggest a novel, non-probabilistic interpretation of Wave Mechanics.
Adriano Orefice; Raffaele Giovanelli; Domenico Ditto
Color Printer Characterization Using a Computational Geometry Approach
We propose a method for the colorimetric characterization of a printer which can also be applied to any other type of digital image reproduction device. The method is based on a computational geometry approach. It uses a 3D triangulation technique to build a tetrahedral partition of the printer color gamut volume and it generates a surrounding structure enclosing the definition domain. The characterization provides the inverse transformation from the device-independent color space CIELAB to the device-dependent color space CMY, taking into account both colorimetric properties of the printer, and color gamut mapping.
Jon Yngve Hardeberg; Francis Schmitt
A bijection between planar constellations and some colored ... - CECM
having a given face color distribution and systems of functional equations for the ..... induces a random generation algorithm for the considered objects) ;.
Chiral Anomaly and Decay of Color Electric Field
Using the formula of chiral anomaly, we discuss the pair production of quarks under color electric field $\\vec{E}$ without addressing explicit formula of quark's wavefunctions. The production is assumed to occur under the effect of color magnetic field $\\vec{B}$ as well as the color electric field. We obtain the life time $t_c$ of the color electric field in the limit of $B\\gg E$. Applying it to the glasma in high-energy heavy-ion collisions, we find that $t_c\\simeq 10Q_s^{-1}$ with saturation momentum $Q_s$.
Aiichi Iwazaki
Numerous treatment of gemstones has been going on for hundreds of years for enhancing color and clarity of gems devoid of these attributes. Whereas previous practices included fraudulent or otherwise processes to achieve the color enhancement, the ionizing radiation has proven to be a reliable and reproducible technique. Three types of irradiation processes include exposure to gamma radiation, electron beam irradiation and the nuclear power plants. Electron Beam Irradiation of Gemstone is a technique in which a gemstone is exposed to highly ionizing radiation electron beam to knock off electrons to generate color centers culminating in introduction of deeper colors. The color centers may be stable or unstable. Below 9MeV, normally no radioactivity is introduced in the exposed gems. A study was conducted at Electron Beam Irradiation Centre (Alurtron) for gemstone color enhancement by using different kind of precious gemstones obtained from Pakistan. The study shows that EB irradiation not only enhances the color but can also improves the clarity of some type of gemstones. The treated stones included kunzite, tourmaline, topaz, quartz, aquamarine and cultured pearls. Doses ranging from 25 kGy to 200 KGy were employed to assess the influence of doses on color and clarity and to select the optimum doses. The samples used included both the natural and the faceted gemstones. It is concluded that significant revenue generation is associated with the enhancement of the color in clarity of gemstones which are available at very cheap price in the world market.
Idris, Sarada; Ghazali, Zulkafli; Hashim, Siti A'iasah; Ahmad, Shamshad; Jusoh, Mohd Suhaimi [Malaysian Nuclear Agency, Bangi, Selangor (Malaysia); School of Chemicals and Material Engineering, NUST Islamabad (Pakistan); Malaysian Nuclear Agency, Bangi, Selangor (Malaysia)
THE MAXIMUM k-COLORABLE SUBGRAPH PROBLEM AND ...
The main goal of this paper is to investigate the polyhedral con- .... The resulting graph with a maximum (black,white,crossed)-colorable ...... Due to the ad-.
Production of High Translucent Self-Colored Dental Zirconia Blocks
Borate Glass Nanofiber/Whiskers in a Hybrid Orthopedic Composite Implants for ... G6: Production of High Translucent Self-Colored Dental Zirconia Blocks.
Characterization and Isolation of Constituents Causing Red Coloration in
Characterization and Isolation of Constituents Causing Red Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water More Documents & Publications Application of Environmental Isotopes to the Evaluation of the Origin of Contamination in a Desert Arroyo: Many Devils Wash, Shiprock, New Mexico Multivariate Statistical Analysis of Water Chemistry in Evaluating the Origin of Contamination in Many Devils Wash, Shiprock, New Mexico Natural Contamination from the Mancos Shale
Characterization and Isolation of Constituents Causing Red Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water Characterization and Isolation of Constituents Causing Red Coloration in Desert Arroyo Seepage Water More Documents & Publications Natural Contamination from the Mancos Shale Application of Environmental Isotopes to the Evaluation of the Origin of Contamination in a Desert Arroyo: Many Devils Wash, Shiprock, New Mexico Multivariate Statistical Analysis of Water Chemistry in Evaluating the Origin of Contamination in Many Devils Wash, Shiprock, New Mexico
People of Color and Disenfranchised Communities Environmental Health
People of Color and Disenfranchised Communities Environmental People of Color and Disenfranchised Communities Environmental Health Network (the Coalition) People of Color and Disenfranchised Communities Environmental Health Network (the Coalition) Since 1997, federal agencies, including the U.S. Department of Energy, have been working with the Coalition to respond to the recommendations in their Implementation Plan. The recommendations and plan describe activities that are aimed at building more positive relationships with agency officials and building the means for community empowerment to seek effective redress of the problems, which continue to plague such communities. People of Color and Disenfranchised Communities Environmental Health Network (May 2000) More Documents & Publications Environmental Justice Brochure
Wave Energy | Open Energy Information
TODO: Add description List of Wave Energy Incentives Retrieved from "http:en.openei.orgwindex.php?titleWaveEnergy&oldid267203" Category: Articles with outstanding TODO tasks...
Wave Energy | Department of Energy
turn, rotates a turbine. Specially built seagoing vessels can also capture the energy of offshore waves. These floating platforms create electricity by funneling waves through...
Evaluation of a Wind-Wave System for Ensemble Tropical Cyclone Wave Forecasting. Part II: Waves
A wind-wave forecast system, designed with the intention of generating unbiased ensemble wave forecasts for extreme wind events, is assessed. Wave hindcasts for 12 tropical cyclones (TCs) are forced using a wind analysis produced from a ...
Steven M. Lazarus; Samuel T. Wilson; Michael E. Splitt; Gary A. Zarillo
wave | OpenEI
9 9 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142281559 Varnish cache server wave Dataset Summary Description This project estimates the naturally available and technically recoverable U.S. wave energy resources, using a 51-month Wavewatch III hindcast database developed especially for this study by National Oceanographic and Atmospheric Administration's (NOAA's) National Centers for Environmental Prediction. For total resource estimation, wave power density in terms of kilowatts per meter is aggregated across a unit diameter circle. Source Electric Power Research Institute (EPRI) Date Released December 05th, 2011 (3 years ago) Date Updated Unknown Keywords
LED lamp color control system and method
An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.
Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.
Scannerless loss modulated flash color range imaging
Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.
Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)
Traveling-wave photodetector
The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size. 4 figures.
Hietala, V.M.; Vawter, G.A.
Forced Trench Waves
A general theory for forced barotropic long trench waves in the presence of linear bottom friction is presented. Two specific forcing mechanisms are considered: (i) transverse fluctuations in a western boundary current as it flows across a trench,...
Lawrence A. Mysak; Andrew J. Willmott
The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size.
Hietala, Vincent M. (Placitas, NM); Vawter, Gregory A. (Albuquerque, NM)
Color-Accurate Underwater Imaging using Perceptual Adaptive Illumination
Color-Accurate Underwater Imaging using Perceptual Adaptive Illumination Iuliu Vasilescu, Carrick, and ecosystem health and activity monitoring. Underwater robots are equipped with motor control for large scale transects but they lack sensors that enable capturing color-accurate underwater images. We present a method
Farritor, Shane
Color Estimation Error Trade-offs Ulrich Barnhfer*a
A. Wandella,b Department of Electrical Engineeringa and Psychologyb , Stanford University, Stanford reflectance (usually drawn from the Macbeth Color Checker). The exposure value (integration time and aperture = || ||i = ^|| ||i i- . For a given color rendering matrix each of the N training patches has its own bias
Wandell, Brian A.
Color fluctuation approximation for multiple interactions in leading twist theory of nuclear shadowing
The leading twist theory of nuclear shadowing predicts the shadowing correction to nuclear parton distributions at small $x$ by connecting it to the leading twist hard diffraction in electron-nucleon scattering. The uncertainties of the predictions are related to the shadowing effects resulting from the interaction of the hard probe with $N \\ge 3$ nucleons. We argue that the pattern of hard diffraction observed at HERA allows one to reduce these uncertainties. We develop a new approach to the treatment of these multiple interactions, which is based on the concept of the color fluctuations and accounts for the presence of both point-like and hadron-like configurations in the virtual photon wave function. Using the developed framework, we update our predictions for the leading twist nuclear shadowing in nuclear parton distributions of heavy nuclei at small $x$.
V. Guzey; M. Strikman
An adaptive color marker for Spatial Augmented Reality environments and visual feedback
This demonstration presents an adaptive visual marker optimised to improve tracking performance in Spatial Augmented Reality environments. The adaptive marker uses a color light sensor to capture the projected light color from a SAR system. The color ... Keywords: fixed color passive marker, spatial augmented reality, visual feedback, adaptive visual marker, color light sensor, projected light color, optimal tracking, light emitting diode, visible light spectrum, user interface
R T. Smith; M R. Marner; B H. Thomas
VELOCITY EVOLUTION AND THE INTRINSIC COLOR OF TYPE Ia SUPERNOVAE
To understand how best to use observations of Type Ia supernovae (SNe Ia) to obtain precise and accurate distances, we investigate the relations between spectra of SNe Ia and their intrinsic colors. Using a sample of 1630 optical spectra of 255 SNe, based primarily on data from the CfA Supernova Program, we examine how the velocity evolution and line strengths of Si II {lambda}6355 and Ca II H and K are related to the B - V color at peak brightness. We find that the maximum-light velocity of Si II {lambda}6355 and Ca II H and K and the maximum-light pseudo-equivalent width of Si II {lambda}6355 are correlated with intrinsic color, with intrinsic color having a linear relation with the Si II {lambda}6355 measurements. Ca II H and K does not have a linear relation with intrinsic color, but lower-velocity SNe tend to be intrinsically bluer. Combining the spectroscopic measurements does not improve intrinsic color inference. The intrinsic color scatter is larger for higher-velocity SNe Ia-even after removing a linear trend with velocity-indicating that lower-velocity SNe Ia are more 'standard crayons'. Employing information derived from SN Ia spectra has the potential to improve the measurements of extragalactic distances and the cosmological properties inferred from them.
Foley, Ryan J.; Sanders, Nathan E.; Kirshner, Robert P., E-mail: email@example.com [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
Single-fiber multi-color pyrometry
This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.
Small, IV, Ward (Livermore, CA); Celliers, Peter (Berkeley, CA)
Small, W. IV; Celliers, P.
Thermal evolution of rotating strange stars in color superconductivity phase
Under the combination effect of the recommencement heating due to spin-down of strange stars and the heat perseveration due to weak conduct heat of the crust, the Cooper pair breaking and formation(PBF) in color superconduction quark matter arises. We investigated the cooling of the strange stars with a crust in color superconductivity phase including both decomfinement heating and PBF process. We find that deconfinement heating can delay the thermal evolution of strange stars and the PBF process suppresses the early temperature rise of the stars. The cooling strange stars behave within the brightness constraint of young compact objects when the color superconductivity gap is small enough.
X. P. Zheng; X. Zhou; Y. W. Yu
This patent relates to means for ascertaining the instant of arrival of a shock wave in an exploslve charge and apparatus utilizing this means to coordinate the timing of two operations involving a short lnterval of time. A pair of spaced electrodes are inserted along the line of an explosive train with a voltage applied there-across which is insufficient to cause discharge. When it is desired to initiate operation of a device at the time the explosive shock wave reaches a particular point on the explosive line, the device having an inherent time delay, the electrodes are located ahead of the point such that the ionization of the area between the electrodes caused by the traveling explosive shock wave sends a signal to initiate operation of the device to cause it to operate at the proper time. The operated device may be photographic equipment consisting of an x-ray illuminating tube.
Tuck, J.L.
Standing wave compressor
DOE Green Energy (OSTI)
A compressor for compression-evaporation cooling systems, which requires no moving parts. A gaseous refrigerant inside a chamber is acoustically compressed and conveyed by means of a standing acoustic wave which is set up in the gaseous refrigerant. This standing acoustic wave can be driven either by a transducer, or by direct exposure of the gas to microwave and infrared sources, including solar energy. Input and output ports arranged along the chamber provide for the intake and discharge of the gaseous refrigerant. These ports can be provided with optional valve arrangements, so as to increase the compressor's pressure differential. The performance of the compressor in either of its transducer or electromagnetically driven configurations, can be optimized by a controlling circuit. This controlling circuit holds the wavelength of the standing acoustical wave constant, by changing the driving frequency in response to varying operating conditions.
Lucas, Timothy S. (4614 River Mill Ct., Glen Allen, VA 23060)
Piezoelectric wave motor
A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.
Yerganian, Simon Scott (Lee' s Summit, MO)
A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase-shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in the direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.
Ultrasonic shear wave couplant
Ultrasonically testing of an article at high temperatures is accomplished by the use of a compact layer of a dry ceramic powder as a couplant in a method which involves providing an ultrasonic transducer as a probe capable of transmitting shear waves, coupling the probe to the article through a thin compact layer of a dry ceramic powder, propagating a shear wave from the probe through the ceramic powder and into the article to develop echo signals, and analyzing the echo signals to determine at least one physical characteristic of the article.
Kupperman, David S. (Oak Park, IL); Lanham, Ronald N. (Lockport, IL)
Kupperman, D.S.; Lanham, R.N.
Expanding impulsive gravitational waves
We explicitly demonstrate that the known solutions for expanding impulsive spherical gravitational waves that have been obtained by a "cut and paste" method may be considered to be impulsive limits of the Robinson-Trautman vacuum type N solutions. We extend these results to all the generically distinct subclasses of these solutions in Minkowski, de Sitter and anti-de Sitter backgrounds. For these we express the solutions in terms of a continuous metric. Finally, we also extend the class of spherical shock gravitational waves to include a non-zero cosmological constant.
J. Podolsky; J. B. Griffiths
Perturbative QCD Fragmentation Functions for Production of P-wave Mesons with Charm and Beauty
We calculate the leading order QCD fragmentation functions for the production of $P$-wave charmed beauty mesons. Long-distance effects are factored into two nonperturbative parameters: the derivative of the radial wavefunction at the origin and a second parameter related to the probability for a $(\\bar b c)$ heavy quark pair that is produced in a color-octet $S$-wave state to form a color-singlet $P$-wave bound state. The four $2P$ states and those $3P$ states which lie below the $BD$ flavor threshold eventually all decay into the $1S$ ground state $B_c$ through hadronic cascades or by emitting photons. The total fragmentation probabilities for production of the $1S$ ground state $B_c$ from the cascades of the $2P$ and $3P$ states are about $1.7 \\times 10^{-4}$ and $2.3 \\times 10^{-4}$ respectively. Thus the direct production of the $P$-wave states via fragmentation may account for a significant fraction of the inclusive production rate of the $B_c$ at large transverse momentum in high energy colliders. Our analytic results for the $P$-wave fragmentation functions disagree with those obtained earlier in the literature.
Tzu Chiang Yuan
Wave�Turbulence Interactions in a Breaking Mountain Wave
The mean and turbulent structures in a breaking mountain wave are considered through an ensemble of high-resolution (essentially large-eddy simulation) wave-breaking calculations. Of particular interest are the turbulent heat and momentum fluxes ...
Craig C. Epifanio; Tingting Qian
Effects of Long Waves on Wind-Generated Waves
A model is developed to explain the observation made in several laboratory experiments that short wind-generated waves are suppressed by a train of long, mechanically generated waves. A sheltering mechanism is responsible for generation of the ...
Gang Chen; Stephen E. Belcher
ColorPower: A Structured Approach to Demand Response
ColorPower: A Structured Approach to Demand Response Speaker(s): Steven Florek Date: August 31, 2012 - 12:00pm Location: 90-3122 Seminar HostPoint of Contact: Janie Page...
Some Considerations in Using Color in Meteorological Displays
This article is intended to facilitate discussion of issues related to the use of color in new meteorological displays. Given the proliferation of new graphics display capabilities (e.g., overlays, animation, the combination of statistical models ...
Robert R. Hoffman; Mark Detweiler; Jane A. Conway; Kevin Lipton
Computer rotoscoping with the aid of color recognition
Rotoscoping is explored as a computer animation technique. The optical videodisc serves as the image storage and input source. Image processing and tablet painting routines are applied to digitized frames. "Color recognition", ...
Allen, Rebecca A
Cool colors for Summer: Characterizing the Radiative Properties...
Cool colors for Summer: Characterizing the Radiative Properties of Pigments for Cool Roofs Speaker(s): Ronnen Levinson Date: April 22, 2004 - 12:00pm Location: 90-3122 In recent...
Automatic Misregistration Testing Apparatus for Line Screen Color CRT'S
Optimum color CRT performance requires that the electron beam impinge on the screen at the proper phosphor stripe. The extent to which the beam fails to strike the intended phosphor stripe is referred to as misregistration. Misregistration leads to loss ...
Allan D. Kautz
A Color Camera for In Situ Photography of Cloud Particles
A technique is described for photographing airborne particles using small forward-scattering angles. The sample volume is defined as the region where collimated light beams of two different primary colors overlap. Images of particles within that ...
Theodore W. Cannon
Neuronal Synchronization and Selective Color Processing in the Human Brain
In the present study, subjects selectively attended to the color of checkerboards in a feature-based attention paradigm. Induced gamma band responses (GBRs), the induced alpha band, and the event-related potential (ERP) were analyzed to uncover neuronal ...
Matthias M. M�ller; Andreas Keil
Cool Colored Roofs to Save Energy and Improve Air Quality
Konopacki. 1998b. "Measured Energy Savings of Light- coloredPeak Power and Cooling Energy Savings of High-Albedo Roofs,�Peak Power and Cooling Energy Savings of High-albedo Roofs,"
Akbari, Hashem; Levinson, Ronnen; Miller, William; Berdahl, Paul
Interpreting Meteorological Satellite Images Using a Color-Composite Technique
An image-display technique is described that simultaneously combines three meteorological satellite images into a color-image product. The technique reveals many features of meteorological interest. It is frequently noted that interpretations of ...
Robert P. d'Entremont; Larry W. Thomason
How ocean color can steer Pacific tropical cyclones
Because ocean color alters the absorption of sunlight, it can produce changes in sea surface temperatures with further impacts on atmospheric circulation. These changes can project onto fields previously recognized to alter ...
Gnanadesikan, Anand
Efficient Sparse Matrix-Matrix Products Using Colorings | Argonne National
Efficient Sparse Matrix-Matrix Products Using Colorings Efficient Sparse Matrix-Matrix Products Using Colorings Title Efficient Sparse Matrix-Matrix Products Using Colorings Publication Type Journal Year of Publication 2013 Authors McCourt, M, Smith, BF, Zhang, H Other Numbers ANL/MCS-P5007-0813 Abstract Sparse matrix-matrix products appear in multigrid solvers and computational methods for graph theory. Some formulations of these products require the inner product of two sparse vectors, which have inefficient use of cache memory. In this paper, we propose a new algorithm for computing sparse matrix-matrix products by exploiting matrix nonzero structure through the process of graph coloring. We prove the validity of this technique in general and demonstrate its viability for multigrid methods used to solve three-dimensional boundary value problems.
Two-dimensional color-code quantum computation
We describe in detail how to perform universal fault-tolerant quantum computation on a two-dimensional color code, making use of only nearest neighbor interactions. Three defects (holes) in the code are used to represent logical qubits. Triple-defect logical qubits are deformed into isolated triangular sections of color code to enable transversal implementation of all single logical qubit Clifford group gates. Controlled-NOT (CNOT) is implemented between pairs of triple-defect logical qubits via braiding.
Fowler, Austin G. [Centre for Quantum Computation and Communication Technology, School of Physics, University of Melbourne, Victoria 3010 (Australia)
Nuclear chromodynamics is not the colorization of nuclear physics
The successful description of nuclei in terms of nucleons, deltas and mesons provides an enormous challenge to QCD. It compels us to pursue our theoretical understanding of chromodynamics into the realm of multiple color singlets in order to examine the concept of color saturation. To pursue this theme, we examine the idea of nuclear transparency in the light of models for confinement and describe the formulation of lattice simulations sensitive to exchange forces. 22 refs., 7 figs.
Sivers, D.
Distinguishing Propagating Waves and Standing Modes: An Internal Wave Model
This paper examines high-frequency (0.1-0.5 cph) internal waves, waves previously characterized by the Garrett and Munk spectral fits (GM72, GM75, GM79) as being vertically symmetric propagating waves (or equivalently �smeared� standing modes�...
M. Benno Blumenthal; Melbourne G. Briscoe
Wave Activity Diagnostics Applied to Baroclinic Wave Life Cycles
Wave activity diagnostics are calculated for four different baroclinic wave life cycles, including the LC1 and LC2 cases studied by Thorncroft, Hoskins, and McIntyre. The wave activity is a measure of the disturbance relative to some zonally ...
Gudrun Magnusdottir; Peter H. Haynes
Wave Breaking Dissipation in the Wave-Driven Ocean Circulation
If wave breaking modifies the Lagrangian fluid paths by inducing an uncertainty in the orbit itself and this uncertainty on wave motion time scales is observable as additive noise, it is shown that within the context of a wave�current interaction ...
Juan M. Restrepo
Evolution of a Random Directional Wave and Freak Wave Occurrence
The evolution of a random directional wave in deep water was studied in a laboratory wave tank (50 m long, 10 m wide, 5 m deep) utilizing a directional wave generator. A number of experiments were conducted, changing the various spectral ...
Takuji Waseda; Takeshi Kinoshita; Hitoshi Tamura
Water Waves and Integrability
The Euler's equations describe the motion of inviscid fluid. In the case of shallow water, when a perturbative asymtotic expansion of the Euler's equations is taken (to a certain order of smallness of the scale parameters), relations to certain integrable equations emerge. Some recent results concerning the use of integrable equation in modeling the motion of shallow water waves are reviewed in this contribution.
Rossen I. Ivanov
Deflagration Wave Profiles
Shock initiation in a plastic-bonded explosives (PBX) is due to hot spots. Current reactive burn models are based, at least heuristically, on the ignition and growth concept. The ignition phase occurs when a small localized region of high temperature (or hot spot) burns on a fast time scale. This is followed by a growth phase in which a reactive front spreads out from the hot spot. Propagating reactive fronts are deflagration waves. A key question is the deflagration speed in a PBX compressed and heated by a shock wave that generated the hot spot. Here, the ODEs for a steady deflagration wave profile in a compressible fluid are derived, along with the needed thermodynamic quantities of realistic equations of state corresponding to the reactants and products of a PBX. The properties of the wave profile equations are analyzed and an algorithm is derived for computing the deflagration speed. As an illustrative example, the algorithm is applied to compute the deflagration speed in shock compressed PBX 9501 as a function of shock pressure. The calculated deflagration speed, even at the CJ pressure, is low compared to the detonation speed. The implication of this are briefly discussed.
Menikoff, Ralph [Los Alamos National Laboratory
Pulsed wave interconnect
Pulsed wave interconnect is proposed for global interconnect applications. Signals are represented by localized wavepackets that propagate along the interconnect lines at the local speed of light to trigger the receivers. Energy consumption is reduced ... Keywords: CMOS, VLSI, high-speed interconnect, nonlinear transmission line, pulse compression, soliton, wafer-scale-integration
Pingshan Wang; Gen Pei; Edwin Chih-Chuan Kan
Color Maintenance of LEDs in Laboratory and Field Applications
Synopsis: To date, consideration for parametric failure of LED products has largely been focused on lumen maintenance. However, color shift is a cause of early failure for some products, and is especially important to consider in certain applications, like museums, where visual appearance is critical. Example data collected by the GATEWAY program for LED lamps installed in museums shows that many have changed color beyond a reasonable tolerance well before their rated lifetime was reached, necessitating replacement. Similar data collected by the CALiPER program between 2008 and 2010 reveals that many early products shifted beyond acceptable tolerances in as little as a few thousand hours. In contrast, data from the L Prize program illustrates that commercially available LED products can have exemplary color stability that is unmatched by traditional light sources. Beyond presenting data from the aforementioned DOE programs, this report discusses the metrics used for communicating color shift�namely MacAdam ellipses and ?u'v'�as well as providing guidance for end users on how to monitor color shift and what to look for in manufacturer warranties. Also included are descriptions of the physical changes that have been documented as leading to color shift in some example types of LED packages. As with complete products, the data presented herein for LED packages shows that a wide variety of products are available; in order for specifiers and consumers to make educated choices, more detailed and standardized information should be made available.
Royer, Michael P.; Tuttle, Ralph; Rosenfeld, Scott M.; Miller, Naomi J.
Diffusive Transport by Breaking Waves
A simple conceptual model of the relationship between advective transport by breaking waves and diffusive transport is derived. line model postulates that the displacement of fluid parcels by a breaking wave is analogous to molecular diffusion (...
Kenneth P. Bowman
Spectral Wave�Turbulence Decomposition
A new method of wave�turbulence decomposition is introduced, for which the only instrument required is one high-frequency pointwise velocity sensor. This is a spectral method that assumes equilibrium turbulence and no wave�turbulence interaction. ...
Jeremy D. Bricker; Stephen G. Monismith
Numerical Dispersion of Gravity Waves
When atmospheric gravity waves are simulated in numerical models, they are not only dispersive for physical but also for numerical reasons. Their wave properties (e.g., damping or propagation speed and direction) can depend on grid spacing as ...
Guido Schroeder; K. Heinke Schl�nzen
Sodium Nightglow and Gravity Waves
Oscillations in intensity of NaD nightglow attributed to mesospheric gravity waves have bean studied. Fractional atmospheric density perturbations have been obtained by means of the linear gravity waves theory of Hines. Values of other parameters ...
A. Molina
Generation and Manipulation of Multi-Color Stationary Light Field Using Electromagnetically Induced Transperancy
Dynamic control of a weak quantum probe light pulse for the generation and quantum manipulations of a stationary multi-color (MC-) light field in a resonant coherent atomic medium using electromagnetically induced transparency is proposed. The manipulations have been analyzed based on the analytical solution of the adiabatic limit in the evolution of MC-light fields resulting from interaction of the slow probe light with the new fields generated in the nondegenerate multi-wave mixing scheme. We have found a critical stopping condition for the MC-light fields where the group velocity of light should reduce down to zero. Semiclassical dynamics and behavior of specific quantum correlations of the MC-light fields have been studied in detail for particular initial quantum states of the probe pulse. The stationary MC-field dynamics are treated in terms of dark MC-polariton states constructed for the studied multi-wave mixing processes. We have found the conditions for optimal manipulation of the MC-light while preserving the delicate quantum correlations of the initial probe light pulse. The quantum manipulations leading to the frequency and direction switching of the initial probe light pulse as well as to the quantum swapping of probe light into the new multi-frequency light fields have been proposed. The possibilities of the interaction time lengthening and enhancement of the electric field amplitudes of the stationary MC-light are also discussed for enhancement of the interactions with weak quantum fields in the spatially limited media.
S. A. Moiseev; B. S. Ham
Gravitational waves and fundamental physics
I give an overview of the motivations for gravitational-wave research, concentrating on the aspects related to ``fundamental'' physics.
Michele Maggiore
Gravitational Wave Sources: An Overview
With full?sensitivity operation of the first generation of gravitational wave detectors now just around the corner
Bernard F. Schutz
Kinetic Theory of Plasma Waves
Kinetic Wave Theory / Proceedings of the Tenth Carolus Magnus Summer School on Plasma and Fusion Energy Physics
D. Van Eester; E. Lerche
Energy Loss by Breaking waves
Observations of the frequency of wind wave breaking in deep water are combined with laboratory estimates of the rate of energy loss a from single breaking wave to infer the net rate of energy transfer to the mixed layer from breaking waves, as a ...
S. A. Thorpe
What is the Space of Spectral Sensitivity Functions for Digital Color Cameras? Sabine Susstrunk
such as a fluorescent checker [6], a LED-based emissive chart [1], or multiple instead of a single picture of a color- pared to fluorescent or LED-based color targets, reflective color targets are still much more stable-band LED illumination or fluorescent color targets. Nevertheless, it is highly desirable to solve
Gu, Jinwei
Long-Wave Trapping by Oceanic Ridges
Long waves are affected by bottom topography and under certain conditions may be trapped along topographical contours which then act as wave guides transmitting wave energy for great distances with little loss. This study examines waves trapped ...
Richard Paul Shaw; Wayne Neu
Charge Density Wave Compounds
Fisher Research Group Fisher Research Group Layered Chalcogenides 29 February 2008 Controlling the Wave by Brad Plummer, SLAC Communications Stanford University researchers working in part at SSRL have discovered a novel set of properties pertaining to a compound of materials called tritellurides. These compounds, composed of three atoms of tellurium and a single atom of one of the rare earth elements, demonstrate unique electronic properties that can be controlled by altering the temperature of the material. The tritellurides display phenomena known as charge density waves (CDW). In a normal conductive metal, electrons persist in a "sea" wherein they are evenly distributed and equally available, or conductive. A CDW occurs under certain circumstances and causes the electrons to clump together, lowering their availability, and thereby lowering the compound's conductivity. Tellurium, when crystallized into quasi-two-dimensional planes and combined with rare earth elements, produces a material with CDWs that can be manipulated and controlled.
DNA waves and water
Some bacterial and viral DNA sequences have been found to induce low frequency electromagnetic waves in high aqueous dilutions. This phenomenon appears to be triggered by the ambient electromagnetic background of very low frequency. We discuss this phenomenon in the framework of quantum field theory. A scheme able to account for the observations is proposed. The reported phenomenon could allow to develop highly sensitive detection systems for chronic bacterial and viral infections.
L. Montagnier; J. Aissa; E. Del Giudice; C. Lavallee; A. Tedeschi; G. Vitiello
The influence of waves . . .
With the growing interest in offshore wind resources, it has become increasingly important to establish and refine models for the interaction between wind and waves in order to obtain accurate models for the sea surface roughness. The simple Charnock relation that has been applied for open sea conditions does not work well in the shallow water near-coastal areas that are important for offshore wind energy. A model for the surface roughness of the sea has been developed based on this concept, using an expression for the Charnock constant as a function of wave age [1], and then relating the wave `age' to the distance to the nearest upwind coastline. The data used in developing these models originated partly from analysis of data from the Vindeby site, partly from previously published results. The scatter in the data material was considerable and consequently there is a need to test these models further by analysing data from sites exhibiting varying distances to the coast. Results from such analysis of recent data are presented for sites with distances to the coast varying from 10km to several hundreds of km. The model shows a good agreement also with this data.
Bernhard Lange; J�rgen H�jstrup
This patent relates to wave-guides and in particular describes wave delaying structure located within a wave-guide. The disclosed wave-guide has an elongated fiat metal sheet arranged in a central plane of the guide and formed with a series of transverse inductive slots such that each face presents an inductive impedance to the guide. The sheet is thickened in the area between slots to increase the self capacity of the slots. Experimental results indicate that in a wave-guide loaded in accordance with the invention the guided wavelength changes more slowly as the air wavelength is changed than the guided wavelength does in wave-guides loaded by means of corrugations.
Robertson-Shersby-Harvie, R.B.; Dain, J.
Crayola's True Color Shines Through: Green | Department of Energy
Crayola's True Color Shines Through: Green Crayola's True Color Shines Through: Green Crayola's True Color Shines Through: Green August 13, 2010 - 10:00am Addthis The Crayola solar farm became fully operational this week. Ten children from around the country, known as the "Crayola Green Team," helped dedicate the newest addition to the Easton, Pa.-plant. Photos courtesy of Crayola. | Photo Courtesy of Crayola The Crayola solar farm became fully operational this week. Ten children from around the country, known as the "Crayola Green Team," helped dedicate the newest addition to the Easton, Pa.-plant. Photos courtesy of Crayola. | Photo Courtesy of Crayola Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this project do? The solar panels produce enough energy to produce 1 billion crayons
Gravimagnetic shock waves and gravitational-wave experiments
Causes of the unsatisfactory condition of the gravitational-wave experiments are discussed and a new outlook at the detection of gravitational waves of astrophysical origin is proposed. It is shown that there are strong grounds for identifying the so-called giant pulses in the pulsar NP 0532 radiation with gravimagnetic shock waves (GMSW) excited in the neutron star magnetosphere by sporadic gravitational radiation of this pulsar.
Yu. G. Ignatyev
THE UBV(RI){sub C} COLORS OF THE SUN
Photometric data in the UBV(RI){sub C} system have been acquired for 80 solar analog stars for which we have previously derived highly precise atmospheric parameters T{sub eff}, log g, and [Fe/H] using high-resolution, high signal-to-noise ratio spectra. UBV and (RI){sub C} data for 46 and 76 of these stars, respectively, are published for the first time. Combining our data with those from the literature, colors in the UBV(RI){sub C} system, with {approx_equal} 0.01 mag precision, are now available for 112 solar analogs. Multiple linear regression is used to derive the solar colors from these photometric data and the spectroscopically derived T{sub eff}, log g, and [Fe/H] values. To minimize the impact of systematic errors in the model-dependent atmospheric parameters, we use only the data for the 10 stars that most closely resemble our Sun, i.e., the solar twins, and derive the following solar colors: (B - V){sub Sun} = 0.653 {+-} 0.005, (U - B){sub Sun} = 0.166 {+-} 0.022, (V - R){sub Sun} = 0.352 {+-} 0.007, and (V - I){sub Sun} = 0.702 {+-} 0.010. These colors are consistent, within the 1{sigma} errors, with those derived using the entire sample of 112 solar analogs. We also derive the solar colors using the relation between spectral-line-depth ratios and observed stellar colors, i.e., with a completely model-independent approach, and without restricting the analysis to solar twins. We find (B - V){sub Sun} = 0.653 {+-} 0.003, (U - B){sub Sun} = 0.158 {+-} 0.009, (V - R){sub Sun} = 0.356 {+-} 0.003, and (V - I){sub Sun} = 0.701 {+-} 0.003, in excellent agreement with the model-dependent analysis.
Ramirez, I. [McDonald Observatory and Department of Astronomy, University of Texas at Austin, 1 University Station, C1400 Austin, TX 78712-0259 (United States); Michel, R.; Schuster, W. J. [Observatorio Astronomico Nacional, Universidad Nacional Autonoma de Mexico, Apartado Postal 877, Ensenada, B.C., CP 22800 (Mexico); Sefako, R.; Van Wyk, F. [South African Astronomical Observatory, P.O. Box 9, Observatory 7935, Cape Town (South Africa); Tucci Maia, M. [UNIFEI, DFQ-Instituto de Ciencias Exatas, Universidade Federal de Itajuba, Itajuba MG (Brazil); Melendez, J. [Departamento de Astronomia do IAG/USP, Universidade de Sao Paulo, Rua do Matao 1226, Sao Paulo, 05508-900 SP (Brazil); Casagrande, L. [Max-Planck-Institut fuer Astrophysik, Karl-Schwarzschild-Str. 1, Postfach 1317, D-85741 Garching (Germany); Castilho, B. V. [Laboratorio Nacional de Astrofisica/MCT, Rua Estados Unidos 154, 37504-364 Itajuba, MG (Brazil)
Riding the Waves: Harnessing Ocean Wave Energy through ...
... The opportunities for ocean wave power to become a new, reliable and clean source of renewable energy will be discussed, as well as activities of ...
Rational choices for the wavelengths of a two color interferometer
If in a two color interferometer for plasma density measurements, the two wavelengths are chosen to have a ratio that is a rational number, and if the signals from each of the wavelengths are multiplied in frequency by the appropriate integer of the rational number and then heterodyned together, the resultant signal will have all effects of component motion nulled out. A phase measurement of this signal will have only plasma density information in it. With CO{sub 2} lasers, it is possible to find suitable wavelength pairs which are close enough to rational numbers to produce an improvement of about 100 in density resolution, compared to standard two color interferometers.
Jobes, F.C.
Color superconductivity in ultra-dense quark matter
At ultra-high density, matter is expected to form a degenerate Fermi gas of quarks in which there is a condensate of Cooper pairs of quarks near the Fermi surface. This phenomenon is called color superconductivity. In these proceedings I review the underlying physics of color superconductivity and our current understanding of the possible phases of real-world quark matter. Then I consider how lattice gauge theorists would proceed to investigate the phase structure of dense quark matter if it were possible to perform the path integral numerically, i.e. if the sign problem had been solved.
Mark G. Alford
The Color Flux Tube as an Effective String
We investigate the low-energy regime of the confining string connecting color sources in Yang-Mills theory. First, we present results of the Monte Carlo measurement of the width of the flux tube between two static quarks in the fundamental representation both at zero and at finite temperature. Then we consider the confining flux tube connecting color sources in larger representations of the gauge group. For stable string - the k-strings - we study the Luscher term; for unstable strings we investigate their decay as the distance between the static sources is increased.
Pepe, Michele [INFN, Sezione di Milano-Bicocca, Edificio U2, Piazza della Scienza 3, 20126 Milano (Italy)
Ferromagnetism and Superconductivity in Quark Matter - Color magnetic superconductivity -
A coexistent phase of spin polarization and color superconductivity in high-density QCD is studied at zero temperature. The axial-vector self-energy stemming from the Fock exchange term of the one-gluon-exchange interaction has a central role to cause spin polarization. As a significant feature, the Fermi surface is deformed by the axial-vector self-energy and then rotation symmetry is spontaneously broken down. The gap function results in being anisotropic in the momentum space in accordance with the deformation. It is found that spin polarization barely conflicts with color superconductivity, and almost coexists with it.
Iterated multidimensional wave conversion
Mode conversion can occur repeatedly in a two-dimensional cavity (e.g., the poloidal cross section of an axisymmetric tokamak). We report on two novel concepts that allow for a complete and global visualization of the ray evolution under iterated conversions. First, iterated conversion is discussed in terms of ray-induced maps from the two-dimensional conversion surface to itself (which can be visualized in terms of three-dimensional rooms). Second, the two-dimensional conversion surface is shown to possess a symplectic structure derived from Dirac constraints associated with the two dispersion surfaces of the interacting waves.
Brizard, A. J. [Dept. Physics, Saint Michael's College, Colchester, VT 05439 (United States); Tracy, E. R.; Johnston, D. [Dept. Physics, College of William and Mary, Williamsburg, VA 23187-8795 (United States); Kaufman, A. N. [LBNL and Physics Dept., UC Berkeley, Berkeley, CA 94720 (United States); Richardson, A. S. [T-5, LANL, Los Alamos, NM 87545 (United States); Zobin, N. [Dept. Mathematics, College of William and Mary, Williamsburg, VA 23187-8795 (United States)
Gravity Waves in the Sun
We present numerical simulations of penetrative convection and gravity wave excitation in the Sun. Gravity waves are self-consistently generated by a convective zone overlying a radiative interior. We produce power spectra for gravity waves in the radiative region as well as estimates for the energy flux of gravity waves below the convection zone. We calculate a peak energy flux in waves below the convection zone to be three orders of magnitude smaller than previous estimates for m=1. The simulations show that the linear dispersion relation is a good approximation only deep below the convective-radiative boundary. Both low frequency propagating gravity waves as well as higher frequency standing modes are generated; although we find that convection does not continually drive the standing g-mode frequencies.
Tamara M. Rogers; Gary A. Glatzmaier
Shock waves in thermal lensing
We review experimental investigation on spatial shock waves formed by the self-defocusing action of a laser beam propagation in a disordered thermal nonlinear media.
Gentilini, S; DeRe, E; Conti, C
Wave runup on cylinders subject to deep water random waves
The accurate prediction of wave runup on deepwater offshore platform columns is of great importance for design engineers. Although linear predictive models are commonly used in the design and analysis process, many of the important effects are of higher order, and thus can only be accounted for by complex nonlinear models that better reflect the physics of the problem. This study presents a two-parameter Weibull distribution function that utilizes empirical coefficients to model the surface wave runup. Laboratory measurements of irregular waves interfering with vertical platform cylinders were used to obtain the Weibull coefficients necessary for the analytical model. Six data sets with different configurations where the wave elevation was measured close to the test cylinders are analyzed. These data on wave runup in deepwater random waves were generated at similar water depths with significant wave heights and spectral peak periods. Statistical parameters, zero crossing analysis and spectral analysis were utilized to characterize and interpret the time series data. The analysis focused on interpreting the tails of the probability distributions by carefully fitting the analytical model to the measured model data. The main conclusion of this study is that the two-parameter Weibull model can be used to accurately model the wave runup on platform cylinders for the experimental data investigated in this study.
Indrebo, Ann Kristin
Wave-coherent airflow and critical layers over ocean waves
An analysis of coherent measurements of winds and waves from data collected during the ONR HiRes program from R/P FLIP off the coast of northern California in June 2010 is presented. A suite of wind and wave measuring systems was deployed to ...
Laurent Grare; Luc Lenain; W. Kendall Melville
Parallel file system measurement and modeling using colored petri nets
Parallel file systems are significant challenges for high performance data-intensive system designers due to their complexity. Being able to study features and designs before building the actual system is an advantage that a simulation model can offer. ... Keywords: colored petri net, parallel file system modeling, parallel file system simulation, pvfs
Hai Quang Nguyen; Amy Apon
Real-Time Face Detection in Color Video
In this paper, we propose a novel and fast facedetection algorithm for detecting face in color videosequences. This algorithm can be integrated into a real-timesurveillance or a video retrieval or indexing system.We focus on both speed and accuracy in ...
Szu-Hao Huang; Shang-Hong Lai
A simple proof of orientability in colored group field theory
In this short note we use results from the theory of crystallizations to prove that color in group field theories garantees orientability of the piecewise linear pseudo-manifolds associated to each graph generated perturbatively. The origin of orientability is the presence of two interaction vertices.
Francesco Caravelli
Electron Electric Dipole Moment induced by Octet-Colored Scalars
An appended sector of two octet-colored scalars, each an electroweak doublet, is an interesting extension of the simple two Higgs doublet model motivated by the minimal flavor violation. Their rich CP violating interaction gives rise to a sizable electron electric dipole moment, besides the quark electric dipole moment via the two-loop contribution of Barr-Zee mechanism.
Jae Ho Heo; Wai-Yee Keung
Edge-preserving color image denoising through tensor voting
This paper presents a new method for edge-preserving color image denoising based on the tensor voting framework, a robust perceptual grouping technique used to extract salient information from noisy data. The tensor voting framework is adapted to encode ... Keywords: CIEDE2000, CIELAB, Edge preservation, Image denoising, Perceptual grouping, Tensor voting
Rodrigo Moreno; Miguel Angel Garcia; Domenec Puig; Carme Juli�
Nuclear DVCS within the high energy QCD color dipole formalism
In this contribution, we present a study of the coherent and incoherent nuclear DVCS process in the small-$x$ regime within the color dipole formalism. Predictions for the nuclear DVCS cross section at photon level in the collider kinematics are presented.
M. V. T. Machado
Machado, M V T
A robust color object analysis approach to efficient image retrieval
We describe a novel indexing and retrieval methodology integrating color, texture, and shape information for content-based image retrieval in image databases. This methodology, we call CLEAR, applies unsupervised image segmentation to partition an image ... Keywords: clustering, content-based image retrieval, efficiency, fuzzy logic, object analysis, region-based features
Ruofei Zhang; Zhongfei Zhang
We propose a chemical and dynamical process to explain the surface colors of the Kuiper belt. In our hypothesis, the initial bulk compositions of the bodies themselves can be quite diverse-as is seen in comets-but the early surface compositions are set by volatile evaporation after the objects are formed. Strong gradients in surface composition, coupled with UV and particle irradiation, lead to the surface colors that are seen today. The objects formed in the inner part of the primordial belt retain only H{sub 2}O and CO{sub 2} as the major ice species on their surfaces. Irradiation of these species plausibly results in the dark neutrally colored centaurs and Kuiper belt objects (KBOs). Object formed further in the disk retain CH{sub 3}OH, which has been shown to lead to brighter redder surfaces after irradiation, as seen in the brighter redder centaurs and KBOs. Objects formed at the current location of the cold classical Kuiper belt uniquely retain NH{sub 3}, which has been shown to affect irradiation chemistry and could plausibly lead to the unique colors of these objects. We propose observational and experimental tests of this hypothesis.
Brown, M. E.; Fraser, W. C. [Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125 (United States); Schaller, E. L., E-mail: email@example.com [NASA Dryden Aircraft Operations Facility, Palmdale, CA 93550 (United States)
Image reconstruction for two-color microgrid polarimetric imagers
A Fourier domain method for reconstructing passive Stokes imagery from a two-color microgrid polarization imager is presented in this paper. This new filter-based technique is designed to avoid aliased spectrum content caused by sampling in a checkerboard ...
Daniel A. LeMaster
Enriching music with synchronized lyrics, images and colored lights
We present a method to synchronize popular music with its lyrics at the stanza level. First we apply an algorithm to segment audio content into harmonically similar and/or contrasting progressions, i.e. the stanzas. We map the stanzas found to a sequence ... Keywords: ambience creation, color extraction, images, lyrics synchronization, multimedia, search engines, term identification, world wide web
Gijs Geleijnse; Dragan Sekulovski; Jan Korst; Steffen Pauws; Bram Kater; Fabio Vignoli
Parallel detection of violations of color constancy David H. Foster*
21). A charac- teristic property of preattentive vision is that search or detection performance is independent. 36 and Discussion). Visual search for targets defined by color is similar when targets and fields., Scho¨nle, P. & Sharpe, L. T. (1999) J. Neurosci. 19, 30943106. 51. De Valois, R. L. & De Valois, K. K
Foster, David H.
Wave Mechanics and the Fifth Dimension
Replacing 4D Minkowski space by 5D canonical space leads to a clearer derivation of the main features of wave mechanics, including the wave function and the velocity of de Broglie waves. Recent tests of wave-particle duality could be adapted to investigate whether de Broglie waves are basically 4D or 5D in nature.
Paul S. Wesson; James M. Overduin
Color measurements and albedo distributions introduce non-intuitive observational biases in size-color relationships among Kuiper Belt Objects (KBOs) that cannot be disentangled without a well characterized sample population with systematic photometry. Peixinho et al. report that the form of the KBO color distribution varies with absolute magnitude, H. However, Tegler et al. find that KBO color distributions are a property of object classification. We construct synthetic models of observed KBO colors based on two B-R color distribution scenarios: color distribution dependent on H magnitude (H-Model) and color distribution based on object classification (Class-Model). These synthetic B-R color distributions were modified to account for observational flux biases. We compare our synthetic B-R distributions to the observed ''Hot'' and ''Cold'' detected objects from the Canada-France Ecliptic Plane Survey and the Meudon Multicolor Survey. For both surveys, the Hot population color distribution rejects the H-Model, but is well described by the Class-Model. The Cold objects reject the H-Model, but the Class-Model (while not statistically rejected) also does not provide a compelling match for data. Although we formally reject models where the structure of the color distribution is a strong function of H magnitude, we also do not find that a simple dependence of color distribution on orbit classification is sufficient to describe the color distribution of classical KBOs.
Pike, R. E.; Kavelaars, J. J., E-mail: firstname.lastname@example.com [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)
Selective Excitation of Tropical Atmospheric Waves in Wave-CISK: The Effect of Vertical Wind Shear
The growth of waves and the generation of potential energy in wave-CISK require unstable waves to tilt with height oppositely to their direction of propagation. This makes the structures and instability properties of these waves very sensitive to ...
Minghua Zhang; Marvin A. Geller
Mixing in Symmetric Holmboe Waves
Direct simulations are used to study turbulence and mixing in Holmboe waves. Previous results showing that mixing in Holmboe waves is comparable to that found in the better-known Kelvin�Helmholtz (KH) billows are extended to cover a range of ...
W. D. Smyth; J. R. Carpenter; G. A. Lawrence
Gas Explosion Characterization, Wave Propagation
of nuclear power plants. However, an evi- dent lack of knowledge in the field had demanded for a detaileds & Dt^boooo^j Risø-R-525 Gas Explosion Characterization, Wave Propagation (Small-Scale Experiments EXPLOSION CHARACTERIZATION, WAVE PROPAGATION (Small-Scale Experiments) G.C. Larsen Abstract. A number
Einstein, Black Holes Gravitational Waves
1 #12;Einstein, Black Holes and Gravitational Waves Gregory B. Cook Wake Forest University 2 #12 Relativity? · What are some of the consequences of GR? · What are Black Holes like and do they exist? · What? · What are Black Holes like and do they exist? · What can we learn from Gravity Waves? · To do all
Cook, Greg
Gravitational Waves II: Emitting Systems
We use the basic equations that predict the emission of gravitational waves according to the Einstein gravitation theory to calculate the luminosities and the amplitudes of the waves generated by binary stars, pulsations of neutron stars, wobbling of deformed neutron stars, oscillating quadrupoles, rotating bars and collapsing and bouncing cores of supernovas. This paper was written to graduate and postgraduate students of Physics.
M. Cattani
Evolution of Persistent Wave Groups
During the near-field leg of the Hawaiian Ocean-Mixing Experiment (HOME-NF), short, steep surface wave groups were observed that elicited strong group-forced responses in the wave-filtered surface current field, as reported by Smith. Some of ...
Jerome A. Smith; Coralie Brulefert
Ocean Tidal and Wave Energy
First published in 2000, the annual Renewable Energy Technical Assessment Guide (TAG-RE) provides a consistent basis for evaluating the economic feasibility of renewable generation technologies. This excerpt from the 2005 TAG-RE addresses ocean tidal and wave energy conversion technologies, which offer promise for converting the significant energy potential available in ocean tidal currents and waves to electricity in the future.
Momentum Transport by Gravity Waves
The momentum flux by orographic gravity waves and the turbulent heat flux in wave-breaking regions are estimated from aircraft data from ALPEX. The fluxes on 6 March 1982 are controlled by low-level directional shear of the mean flow and ...
Jinwon Kim; L. Mahrt
An eye for vulgarity : how MoMA saw color through Wild Bill's lens
This thesis is an examination of the 1976 Museum of Modern Art exhibition of color photographs by William Eggleston-the second one-man show of color photography in the museum's history- with particular attention to the ...
Kivlan, Anna Karrer
AERONET-OC: A Network for the Validation of Ocean Color Primary Products
The ocean color component of the Aerosol Robotic Network (AERONET-OC) has been implemented to support long-term satellite ocean color investigations through cross-site consistent and accurate measurements collected by autonomous radiometer ...
Giuseppe Zibordi; Fr�d�ric M�lin; Jean-Fran�ois Berthon; Brent Holben; Ilya Slutsker; David Giles; Davide D�Alimonte; Doug Vandemark; Hui Feng; Gregory Schuster; Bryan E. Fabbri; Seppo Kaitala; Jukka Sepp�l�
An Example Crossover Experiment for Testing New Vicarious Calibration Techniques for Satellite Ocean Color Radiometry
Vicarious calibration of ocean color satellites involves the use of accurate surface measurements of water-leaving radiance to update and improve the system calibration of ocean color satellite sensors. An experiment was performed to compare a ...
Kenneth J. Voss; Scott McLean; Marlon Lewis; Carol Johnson; Stephanie Flora; Michael Feinholz; Mark Yarbrough; Charles Trees; Mike Twardowski; Dennis Clark
Color and perceptual variation revisited: Unknown facts, alien modalities, and perfect psychosemantics
29�39. Jakab, Z. , and B. McLaughlin (2003) �Why Not ColorUniversity Press, Oxford. McLaughlin, B. (2003a) �Color,Press, New York, 97�154. McLaughlin, B. (2003b) �The Place
Cohe, J
Tube-wave seismic imaging
The detailed analysis of cross well seismic data for a gas reservoir in Texas revealed two newly detected seismic wave effects, recorded approximately 2000 feet above the reservoir. A tube-wave (150) is initiated in a source well (110) by a source (111), travels in the source well (110), is coupled to a geological feature (140), propagates (151) through the geological feature (140), is coupled back to a tube-wave (152) at a receiver well (120), and is and received by receiver(s) (121) in either the same (110) or a different receiving well (120). The tube-wave has been shown to be extremely sensitive to changes in reservoir characteristics. Tube-waves appear to couple most effectively to reservoirs where the well casing is perforated, allowing direct fluid contact from the interior of a well case to the reservoir.
Korneev, Valeri A [LaFayette, CA
Korneev, Valeri A. (Lafayette, CA); Bakulin, Andrey (Houston, TX)
Development and application of ocean color algorithms for estimating particulate organic carbon in the Southern Ocean from satellite observations
and C. R. McClain (1998), Ocean color chlorophyll algorithmsand C. R. McClain (1998), Ocean color chlorophyll algorithmsand M. Culver (2000), Ocean color chlorophyll a algorithms
Allison, David Benjamin
Second Harmonic Resonance for Equatorial Waves
Simple, exact analytical conditions for second harmonic resonance between equatorial waves are derived. Such resonance can occur only between two Rossby waves or two westward travelling gravity waves. It is shown that regardless of whether the ...
John P. Boyd
Topographic Waves Generated by a Transient Wind
The concept of linear mountain waves is generally equated with steady-state stationary waves. This essentially means that the absolute horizontal phase velocity of mountain waves is zero and that their momentum flux profile is independent of ...
Fran�ois Lott; Hector Teitelbaum
Wind Wave Growth at Short Fetch
Wave wire data from the large wind wave tank of the Ocean Engineering Laboratory at the University of California, Santa Barbara, are analyzed, and comparisons are made with published data collected in four other wave tanks. The behavior of wind ...
T. Lamont-Smith; T. Waseda
Nonlinear Wave Statistics in a Focal Zone
In this paper, the combined effects of refraction and nonlinearity on the evolution of ocean surface wave statistics are considered and possible implications for the likelihood of extreme waves, also known as freak or rogue waves, are examined. A ...
T. T. Janssen; T. H. C. Herbers
Observations of Breaking Surface Wave Statistics
Breaking surface waves were observed during the Surface Wave Process Program with a novel acoustical instrument that makes use of underwater ambient sound to track individual breaking events. The spatial and temporal statistics of braking waves ...
Li Ding; David M. Farmer
Interpreting Stationary Wave Nonlinearity in Barotropic Dynamics
Stationary wave nonlinearity describes the self-interaction of stationary waves and is important in maintaining the zonally asymmetric atmospheric general circulation. However, the dynamics of stationary wave nonlinearity, which is often ...
Lei Wang; Paul J. Kushner
On the Diurnal Variation of Mountain Waves
The diurnal variation of mountain waves and wave drag associated with flow past mesoscale ridges has been examined using the Coupled Ocean�Atmosphere Mesoscale Prediction System (COAMPS) and an analytical boundary layer (BL) model. The wave drag ...
Qingfang Jiang; James D. Doyle
Effect of Nonlinearity on Atmospheric Gravity Waves
The weakly nonlinear limit of two-dimensional gravity waves in an incompressible, inviscid and stably stratified atmosphere is studied. The three-wave resonant interaction theory indicates an energy cascade from a vertically propagating wave (...
Mostafa M. Ibrahim
Hinsdale Wave Basin 1 | Open Energy Information
Hinsdale Wave Basin 1 Hinsdale Wave Basin 1 Jump to: navigation, search Basic Specifications Facility Name Hinsdale Wave Basin 1 Overseeing Organization Oregon State University Hydrodynamics Hydrodynamic Testing Facility Type Wave Basin Length(m) 104.0 Beam(m) 3.7 Depth(m) 4.6 Cost(per day) $3500 Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 1.8 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wavemaking Description Monochromatic waves (cnoidal, Stokes, Airy), solitary waves, user-defined free surface timeseries or board displacement timeseries for random waves Wave Direction Uni-Directional Simulated Beach Yes Description of Beach 12' by 12' concrete slabs anchored to flume walls
A weighted dominant color descriptor for content-based image retrieval
Color has been extensively used in the process of image retrieval. The dominant color descriptor (DCD) that was proposed by MPEG-7 is a famous case in point. It is based on compactly describing the prominent colors of an image or a region. However, this ... Keywords: Background dominance problem, Dominant color descriptor, Linear Block Algorithm, MPEG-7, Object- and content-based image retrieval, Salient object detection, Semantic feature, Similarity measures
Ahmed Talib; Massudi Mahmuddin; Husniza Husni; Loay E. George
Fossilized Biophotonic Nanostructures Reveal the Original Colors of 47-Million-Year-Old Moths
lepidopterans; specimens are from the 47-million-year-old Messel oil shale (Germany). The preserved colors
Cao, Hui
A Brief Introduction to the Color Glass Condensate and the Glasma
I provide a brief introduction to the theoretical ideas and phenomenological motivation for the Color Glass Condensate and the Glasma
Larry McLerran
Unsharp Masking-Based Approach for Color Image Faouzi Alaya Cheikh, Lazhar Khriji and Moncef Gabbouj
the vector rational #12;lters (VRF) for color image interpola- tion was introduced in [3]. Rational #12;lters
Gabbouj, Moncef
CLex: a lexicon for exploring color, concept and emotion associations in language
Existing concept-color-emotion lexicons limit themselves to small sets of basic emotions and colors, which cannot capture the rich pallet of color terms that humans use in communication. In this paper we begin to address this problem by building a novel, ...
Svitlana Volkova; William B. Dolan; Theresa Wilson
Two- and three-color two-quark states in warm, dense quark matter
We study the Gaussian fluctuations of the two-flavor, meson-diquark bosonized NJL model for two and three colors at the color superconducting phase transition. The analysis is based on analytical properties of the polarization matrix. Pionic fluctuations are shown to be stabilised in the 2SC phase compared to the two-color result where they are right on threshold.
Zablocki, D. S., E-mail: email@example.com; Blaschke, D. [University of Wroclaw, Institute for Theoretical Physics (Poland); Buballa, M. [Technische Universitaet Darmstadt, Institut fuer Kernphysik (Germany)
Green Ocean Wave Energy | Open Energy Information
Ocean Wave Energy Jump to: navigation, search Name Green Ocean Wave Energy Sector Marine and Hydrokinetic Website http:http:www.greenoceanwa Region United States LinkedIn...
Wave Wind LLC | Open Energy Information
Wave Wind LLC Place Sun Prairie, Wisconsin Zip 53590 Sector Services, Wind energy Product Wisconsin-based wind developer and construction services provider. References Wave Wind...
Equatorial Wave-Mean Flow Interaction: The Long Rossby Waves
The interaction of long equatorial Rossby waves with mean zonal currents in the ocean is investigated in a continuously stratified finite difference numerical model. The model allows for realistic specification of the mean state including both ...
Jeffrey A. Proehl
Nonintrusive Measurement of Ocean Waves: Lidar Wave Gauge
In December 1999, a nonintrusive directional lidar wave gauge (LWG) was field tested at the Field Research Facility (FRF) in North Carolina. The LWG uses proven lidar technology to directly measure water surface elevation from above the water�s ...
Jennifer L. Irish; Jennifer M. Wozencraft; A. Grant Cunningham; Claudine Giroud
Wave Attenuation and Wave Drift in the Marginal Ice Zone
Surface gravity waves in a viscous rotating ocean are studied theoretically when they penetrate an area covered by highly concentrated brashlike ice. The motion is described by a Lagrangian formulation, and the brash is modeled by a viscous ...
Jan Erik Weber
Cool colors for Summer: Characterizing the Radiative Properties of Pigments
Cool colors for Summer: Characterizing the Radiative Properties of Pigments Cool colors for Summer: Characterizing the Radiative Properties of Pigments for Cool Roofs Speaker(s): Ronnen Levinson Date: April 22, 2004 - 12:00pm Location: 90-3122 In recent years roofing manufacturers have incorporated near-infrared (NIR) reflecting pigments in coatings applied to a variety of nonwhite roofing products, such as metal panels and clay tiles. We have developed and validated a model for computation of solar spectral absorption (K) and backscattering (S) coefficients, and used it to characterize a wide variety of pigments that may be used in architectural coatings.Measured values of backscattering coefficients for generic titanium dioxide (rutile) white pigment are in rough agreement with values computed from Mie theory. Pigments in widespread use are examined, with particular emphasis on those
Monolithic multi-color light emission/detection device
A single-crystal, monolithic, tandem, multi-color optical transceiver device is described, including (a) an InP substrate having upper and lower surfaces, (b) a first junction on the upper surface of the InP substrate, (c) a second junction on the first junction. The first junction is preferably GaInAsP of defined composition, and the second junction is preferably InP. The two junctions are lattice matched. The second junction has a larger energy band gap than the first junction. Additional junctions having successively larger energy band gaps may be included. The device is capable of simultaneous and distinct multi-color emission and detection over a single optical fiber.
Wanlass, Mark W. (Golden, CO)
Color Superconductivity in Compact Stars and Gamma Ray Bursts
We study the effects of color superconductivity on the structure and formation of compact stars. We show that it is possible to satisfy most of recent observational boundaries on masses and radii if a diquark condensate forms in a hybrid or a quark star. Moreover, we find that a huge amount of energy, of the order of $10^{53}$ erg, can be released in the conversion from a (metastable) hadronic star into a (stable) hybrid or quark star, if the presence of a color superconducting phase is taken into account. Accordingly to the scenario proposed in Astrophys.J.586(2003)1250, the energy released in this conversion can power a Gamma Ray Burst. This mechanism can explain the recent observations indicating a delay, of the order of days or years, between a few Supernova explosions and the subsequent Gamma Ray Burst.
A. Drago; A. Lavagno; G. Pagliara
EFFICIENT EFFICIENT SPARSE MATRIX-MATRIX PRODUCTS USING COLORINGS MICHAEL MCCOURT ∗ , BARRY SMITH ∗ , AND HONG ZHANG ∗ Abstract. Sparse matrix-matrix products appear in multigrid solvers and computational methods for graph theory. Some formulations of these products require the inner product of two sparse vectors, which have inefficient use of cache memory. In this paper, we propose a new algorithm for computing sparse matrix-matrix products by exploiting matrix nonzero structure through the process of graph coloring. We prove the validity of this technique in general and demonstrate its viability for multigrid methods used to solve three-dimensional boundary value problems. 1. Introduction. Matrix-matrix multiplication is a fundamental linear algebra operation [4]. The operation of concern in this work is C = AB T , which arises in algebraic multigrid and certain graph algorithms.
Three Successful Tests of Color Transparency and Nuclear Filtering
We review the theoretical formalism for hard exclusive processes in a nuclear medium. Theory suggests that these processes will show the very interesting phenomena of color transparency and nuclear filtering. The survival probability in nuclear media has also been predicted to show a scaling behavior at large momentum and large nuclear number. We show that all of these effects may have already been seen experimentally.
Pankaj Jain; John P. Ralston
Wave Energy Basics | Department of Energy
Wave Energy Basics Wave Energy Basics Wave Energy Basics August 16, 2013 - 4:30pm Addthis Photo of a large wave. Wave energy technologies extract energy directly from surface waves or from pressure fluctuations below the surface. Renewable energy analysts believe there is enough energy in ocean waves to provide up to 2 terawatts of electricity. (A terawatt is equal to a trillion watts.) However, wave energy cannot be harnessed everywhere. Wave power-rich areas of the world include the western coasts of Scotland, northern Canada, southern Africa, and Australia as well as the northeastern and northwestern coasts of the United States. In the Pacific Northwest alone, it is feasible that wave energy could produce 40-70 kilowatts (kW) per 3.3 feet (1 meter) of western coastline. Wave Energy Technologies
Hinsdale Wave Basin 2 | Open Energy Information
Wave Basin 2 Wave Basin 2 Jump to: navigation, search Basic Specifications Facility Name Hinsdale Wave Basin 2 Overseeing Organization Oregon State University Hydrodynamics Length(m) 48.8 Beam(m) 26.5 Depth(m) 2.1 Water Type Freshwater Cost(per day) $3500 Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.8 Maximum Wave Height(m) at Wave Period(s) 10.0 Wave Period Range(s) 10.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wavemaking Description Monochromatic waves (cnoidal, Stokes, Airy), solitary waves, user-defined free surface timeseries or board displacement timeseries for random waves Wave Direction Both Simulated Beach Yes Description of Beach Built to client specifications, currently rigid concrete over gravel fill
Sheets Wave Basin | Open Energy Information
Sheets Wave Basin Sheets Wave Basin Jump to: navigation, search Basic Specifications Facility Name Sheets Wave Basin Overseeing Organization University of Rhode Island Hydrodynamic Testing Facility Type Wave Basin Length(m) 30.0 Beam(m) 3.6 Depth(m) 1.8 Cost(per day) $750(+ Labor/Materials) Towing Capabilities Towing Capabilities Yes Maximum Velocity(m/s) 2.0 Length of Effective Tow(m) 25.0 Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.3 Maximum Wave Height(m) at Wave Period(s) 3.0 Maximum Wave Length(m) 10 Wave Period Range(s) 3.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wavemaking Description Pre-programmed for regular and irregular waves, but wavemaker is capable of any input motion. Wave Direction Uni-Directional
Haynes Wave Basin | Open Energy Information
Wave Basin Wave Basin Jump to: navigation, search Basic Specifications Facility Name Haynes Wave Basin Overseeing Organization Texas A&M (Haynes) Hydrodynamic Testing Facility Type Wave Basin Length(m) 38.1 Beam(m) 22.9 Depth(m) 1.5 Water Type Freshwater Cost(per day) $150/hour (excluding labor) Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.6 Maximum Wave Height(m) at Wave Period(s) 3.3 Maximum Wave Length(m) 10.7 Wave Period Range(s) 3.3 Current Velocity Range(m/s) 0.2 Programmable Wavemaking Yes Wavemaking Description Directional, irregular, any spectrum, cnoidal or solitary wave Wave Direction Both Simulated Beach Yes Description of Beach Stone Channel/Tunnel/Flume Channel/Tunnel/Flume None
Phase Structure and Instability Problem in Color Superconductivity
We address the phase structure of color superconducting quark matter at high quark density. Under the electric and color neutrality conditions there appear various phases as a result of the Fermi surface mismatch among different quark flavors induced by finite strange quark mass; the color-flavor locked (CFL) phase where quarks are all energy gapped, the u-quark superconducting (uSC) phase where u-quarks are paired with either d- or s-quarks, the d-quark superconducting (dSC) phase that is the d-quark analogue of the uSC phase, the two-flavor superconducting (2SC) phase where u- and d-quarks are paired, and the unpaired quark matter (UQM) that is normal quark matter without pairing. Besides these possibilities, when the Fermi surface mismatch is large enough to surpass the gap energy, the gapless superconducting phases are expected. We focus our discussion on the chromomagnetic instability problem related to the gapless CFL (gCFL) onset and explore the instability regions on the phase diagram as a function of the temperature and the quark chemical potential. We sketch how to reach stable physical states inside the instability regions.
Techno-economic Analysis for Labeling Color Televisions in India
Techno-economic Analysis for Labeling Color Televisions in India Techno-economic Analysis for Labeling Color Televisions in India Title Techno-economic Analysis for Labeling Color Televisions in India Publication Type Report Year of Publication 2007 Authors Iyer, Maithili Date Published 12/1/2007 Publisher Lawrence Berkeley National Laboratory Keywords developing country studies, labeling Abstract The analysis summarized in this report supports the ongoing work of India's Bureau of Energy Efficiency (BEE) in its mandate to implement a standards and labeling (S&L) program for consumer electronics in India. US EPA actively supports the S&L program of the BEE. The analysis deals with establishing an efficiency threshold for an endorsement label. The purpose of endorsement labeling is to indicate clearly to the consumer that the labeled product saves energy compared to others on the market. The endorsement levels can be set on the basis of their relative place in the efficiency distribution. Typically, these levels are applied to the top tier (e.g., the top 15 to 25%) of energy-efficient products in a market. One example of an endorsement label for energy efficiency is the U.S. Energy Star® label. These levels can also be designed to target a specific efficiency level, as is mostly done with thresholds for standby power ratings.
The parametric decay of Alfven waves into shear Alfven waves and dust lower hybrid waves
The parametric decay instability of Alfven wave into low-frequency electrostatic dust-lower-hybrid and electromagnetic shear Alfven waves has been investigated in detail in a dusty plasma in the presence of external/ambient uniform magnetic field. Magnetohydrodynamic fluid equations of plasmas have been employed to find the linear and nonlinear response of the plasma particles for this three-wave nonlinear coupling in a dusty magnetoplasma. Here, relatively high frequency electromagnetic Alfven wave has been taken as the pump wave. It couples with other two low-frequency internal possible modes of the dusty magnetoplasma, viz., the dust-lower-hybrid and shear Alfven waves. The nonlinear dispersion relation of the dust-lower-hybrid wave has been solved to obtain the growth rate of the parametric decay instability. The growth rate is maximum for small value of external magnetic field B{sub s}. It is noticed that the growth rate is proportional to the unperturbed electron number density n{sub oe}.
Jamil, M. [Department of Physics, Government College University, Lahore 54000 (Pakistan); Department of Physics, Crescent Model School Shadman, Lahore 54000 (Pakistan); Shah, H. A.; Zubia, K.; Zeba, I.; Uzma, Ch. [Department of Physics, Government College University, Lahore 54000 (Pakistan); Salimullah, M. [Department of Physics, Government College University, Lahore 54000 (Pakistan); Department of Physics, Jahangirnagar University, Savar, Dhaka 1342 (Bangladesh)
Scattering of superpositions of localized waves from spheres
Localized wave (LW) solutions of the homogeneous wave equation can represent either focused or extended pulses
Des Power; Rod Donnelly
Wave Energy Extraction from buoys
Different types of Wave Energy Converters currently tested or under development are using the vertical movement of floating bodies to generate electricity. For commercial applications, arrays have to be considered in order ...
Garnaud, Xavier
Orographically Induced Rossby Wave Instabilities
Recently, the effects of nonlinearity on waves forced by sinusoidal orography in severely truncated barotropic and baroclinic models have been explored. Multiple equilibria were found for fixed forcing and these have been associated with zonal ...
Michael J. Revell; Brian J. Hoskins
Explosive Instability of Vorticity Waves
The weakly nonlinear dynamics of �vorticity waves� (VW), specific wavelike motions occurring nearshore in the presence of an alongshore shear current is examined. By means of a standard asymptotic technique starting with the shallow-water ...
V. I. Shrira; V. V. Voronovich; N. G. Kozhelupova
Waves in the chromosphere: observations
I review the literature on observational aspects of waves in the solar chromosphere in the first part of this contribution. High-frequency waves are invoked to build elaborate cool-star chromosphere heating theories but have not been detected decisively so far, neither as magnetic modes in network elements nor as acoustic modes in below-the-canopy internetwork regions. Three-minute upward-propagating acoustic shocks are thoroughly established through numerical simulation as the cause of intermittent bright internetwork grains, but their pistoning and their role in the low-chromosphere energy budget remain in debate. Three-minute wave interaction with magnetic canopies is a newer interest, presently progressing through numerical simulation. Three-minute umbral flashes and running penumbral waves seem a similar acoustic-shock phenomenon awaiting numerical simulation. The low-frequency network Doppler modulation remains enigmatic. In the second part, I address low-frequency ultraviolet brightness variations of t...
Rutten, R J
Three-Dimensional Edge Waves
Exact solutions are found to the linearized three-dimensional equations for free surface-gravity waves trapped against a straight coastline with a topography varying perpendicular to the coastline. Three families of topographies are found, one ...
Richard Paul Shaw; David Paskausky
On Offshore Propagating Diurnal Waves
Characteristics and dynamics of offshore diurnal waves induced by land�sea differential heating are examined using linear theory. Two types of heating profiles are investigated, namely a shallow heating source confined within an atmospheric ...
Qingfang Jiang
Gravitational waves with distinct wavefronts
Exact solutions of Einstein's vacuum equations are considered which describe gravitational waves with distinct wavefronts. A family of such solutions presented recently in which the wavefronts have various geometries and which propagate into a number of physically significant backgrounds is here related to an integral representation which is a generalisation of the Rosen pulse solution for cylindrical waves. A nondiagonal solution is also constructed which is a generalisation of the Rosen pulse, being a cylindrical pulse wave with two states of polarization propagating into a Minkowski background. The solution is given in a complete and explicit form. A further generalisation to include electromagnetic waves with a distinct wavefront of the same type is also discussed.
G A Alekseev; J B Griffiths
Thermal Equilibration of Planetary Waves
Equilibration of planetary waves toward free-mode forms, steady solutions of the unforced, undamped equations of motion, is studied in a three-level quasi-geostrophic model on the hemisphere. A thermal mechanism is invoked, parameterized as a ...
John Marshall; Damon W. K. So
A Planetary-Wave Climatology
Ultralong and long planetary waves are analyzed at the 500 mb level in terms of their amplitudes, phases and stationarity characteristics, the latter described in terms of a stationarity index SIn. This index consists of the ratio between ...
Elmar R. Reiter; Daniel Westhoff
Accelerations in Steep Gravity Waves
Surface accelerations can be measured in at least two ways: 1) by a fixed vertical wave guage, 2) by a free-floating buoy. This gives rise to two different vertical accelerations, called respectively �apparent� and �real�, or Langrangian. This ...
M. S. Longuet-Higgins
wave energy | OpenEI
99 99 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142281099 Varnish cache server wave energy Dataset Summary Description Source The Wave Energy Resource Assessment project is a joint venture between NREL, EPRI, and Virginia Tech. EPRI is the prime contractor, Virginia Tech is responsible for development of the models and estimating the wave resource, and NREL serves as an independent validator and also develops the final GIS-based display of the data. Source National Renewable Energy Laboratory (NREL) Date Released September 27th, 2011 (3 years ago) Date Updated October 20th, 2011 (3 years ago) Keywords EPRI GIS NREL Puerto Rico shapefile United States Virginia Tech wave energy
Planetary waves in rotating ionosphere
The problem of propagation of ultralong planetary waves in the Earth's upper atmosphere is considered. A new exact solution to the MHD equations for the ionosphere is obtained in spherical coordinates with allowance for the geomagnetic field and Earth's rotation. A general dispersion relation is derived for planetary waves in the ionospheric E and F regions, and the characteristic features of their propagation in a weakly ionized ionospheric plasma are discussed.
Khantadze, A. G.; Jandieri, V. G. [Tbilisi State University (Georgia); Jandieri, G. V. [Georgian Technical University (Georgia)
Direct Drive Wave Energy Buoy
The most prudent path to a full-scale design, build and deployment of a wave energy conversion (WEC) system involves establishment of validated numerical models using physical experiments in a methodical scaling program. This Project provides essential additional rounds of wave tank testing at 1:33 scale and ocean/bay testing at a 1:7 scale, necessary to validate numerical modeling that is essential to a utility-scale WEC design and associated certification.
Rhinefrank, Kenneth E. [Columbia Power Technologies, Inc.; Lenee-Bluhm, Pukha [Columbia Power Technologies, Inc.; Prudell, Joseph H. [Columbia Power Technologies, Inc.; Schacher, Alphonse A. [Columbia Power Technologies, Inc.; Hammagren, Erik J. [Columbia Power Technologies, Inc.; Zhang, Zhe [Columbia Power Technologies, Inc.
Spinor wave equation of photon
In this paper, we give the spinor wave equations of free and unfree photon, which are the differential equation of space-time one order. For the free photon, the spinor wave equations are covariant, and the spinors $\\psi$ are corresponding to the the reducibility representations $D^{10}+D^{01}$ and $D^{10}+D^{01}+D^{1/2 1/2}$ of the proper Lorentz group.
Xiang-Yao Wu; Bo-Jun Zhang; Xiao-Jing Liu; Si-Qi Zhang; Jing Wang; Hong Li; Xi-Hui Fan; Jing-Wu Li
Multibaseline gravitational wave radiometry
We present a statistic for the detection of stochastic gravitational wave backgrounds (SGWBs) using radiometry with a network of multiple baselines. We also quantitatively compare the sensitivities of existing baselines and their network to SGWBs. We assess how the measurement accuracy of signal parameters, e.g., the sky position of a localized source, can improve when using a network of baselines, as compared to any of the single participating baselines. The search statistic itself is derived from the likelihood ratio of the cross correlation of the data across all possible baselines in a detector network and is optimal in Gaussian noise. Specifically, it is the likelihood ratio maximized over the strength of the SGWB, and is called the maximized-likelihood ratio (MLR). One of the main advantages of using the MLR over past search strategies for inferring the presence or absence of a signal is that the former does not require the deconvolution of the cross correlation statistic. Therefore, it does not suffer from errors inherent to the deconvolution procedure and is especially useful for detecting weak sources. In the limit of a single baseline, it reduces to the detection statistic studied by Ballmer [Class. Quant. Grav. 23, S179 (2006)] and Mitra et al. [Phys. Rev. D 77, 042002 (2008)]. Unlike past studies, here the MLR statistic enables us to compare quantitatively the performances of a variety of baselines searching for a SGWB signal in (simulated) data. Although we use simulated noise and SGWB signals for making these comparisons, our method can be straightforwardly applied on real data.
Dipongkar Talukder; Sanjit Mitra; Sukanta Bose
Interaction of High Intensity Electromagnetic Waves with Plasmas
The focus of our work during the duration of this grant was on the following areas: (a) the fundamental plasma physics of intense laser-plasma interactions, including the nonlinear excitation of plasma waves for accelerator applications, as well as the recently discovered by us phenomenon of the relativistic bi-stability of relativistic plasma waves driven by a laser beatwave; (b) interaction of high power microwave beams with magnetized plasma, including some of the recently discovered by us phenomena such as the Undulator Induced Transparency (UIT) as well as the new approaches to dynamic manipulation of microwave pulses; (c) investigations of the multi-color laser pulse interactions in the plasma, including the recently discovered by us phenomenon of Electromagnetic Cascading (EC) and the effect of the EC of three-dimensional dynamics of laser pulses (enhanced/suppressed selffocusing etc.); (d) interaction of high-current electron beams with the ambient plasma in the context of Fast Ignitor (FI) physics, with the emphasis on the nonlinear dynamics of the Weibel instability and beam filamentation.
G. Shvets
Steady water waves with multiple critical layers
We construct small-amplitude periodic water waves with multiple critical layers. In addition to waves with arbitrarily many critical layers and a single crest in each period, two-dimensional sets of waves with several crests and troughs in each period are found. The setting is that of steady two-dimensional finite-depth gravity water waves with vorticity.
Mats Ehrnstr�m; Joachim Escher; Erik Wahl�n
Shock waves in trombones A. Hirschberg
Shock waves in trombones A. Hirschberg Eindhoven University of Technology, W&S, P.O. Box 513, 5600 of the wave propagation in the pipe. At fortissimo levels this leads to shock wave formation observed in our and the band- width necessary in order to observe shock waves. Our ex- perimental results, shown in Figs. 2
Luo, Xiaoyu
UNDERCOMPRESSIVE SHOCK WAVES AND THE DAFERMOS REGULARIZATION STEPHEN SCHECTER Abstract solutions that include only shock waves. Shock waves are required to satisfy the viscous profile criterion for a given viscosity (B(u)u x ) x . Undercompressive shock waves are allowed. We also show that all
Magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere. Alfven waves and magneto-sonic waves are particular classes of MHD waves. These wave modes are clearly different and have pure properties in uniform plasmas of infinite extent only. Due to plasma non-uniformity, MHD waves have mixed properties and cannot be classified as pure Alfven or magneto-sonic waves. However, vorticity is a quantity unequivocally related to Alfven waves as compression is for magneto-sonic waves. Here, we investigate MHD waves superimposed on a one-dimensional non-uniform straight cylinder with constant magnetic field. For a piecewise constant density profile, we find that the fundamental radial modes of the non-axisymmetric waves have the same properties as surface Alfven waves at a true discontinuity in density. Contrary to the classic Alfven waves in a uniform plasma of infinite extent, vorticity is zero everywhere except at the cylinder boundary. If the discontinuity in density is replaced with a continuous variation of density, vorticity is spread out over the whole interval with non-uniform density. The fundamental radial modes of the non-axisymmetric waves do not need compression to exist unlike the radial overtones. In thin magnetic cylinders, the fundamental radial modes of the non-axisymmetric waves with phase velocities between the internal and the external Alfven velocities can be considered as surface Alfven waves. On the contrary, the radial overtones can be related to fast-like magneto-sonic modes.
Goossens, M.; Andries, J.; Soler, R.; Van Doorsselaere, T. [Centre for Plasma Astrophysics, Department of Mathematics, Katholieke Universiteit Leuven, Celestijnenlaan 200B, 3001 Leuven (Belgium); Arregui, I.; Terradas, J., E-mail: firstname.lastname@example.com [Solar Physics Group, Departament de Fisica, Universitat de les Illes Balears, E-07122 Palma de Mallorca (Spain)
Alden Wave Basin | Open Energy Information
Wave Basin Wave Basin Jump to: navigation, search Basic Specifications Facility Name Alden Wave Basin Overseeing Organization Alden Research Laboratory, Inc Hydrodynamic Testing Facility Type Wave Basin Length(m) 33.5 Beam(m) 21.3 Depth(m) 1.2 Water Type Freshwater Cost(per day) Depends on study Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.3 Maximum Wave Height(m) at Wave Period(s) 1.0 Maximum Wave Length(m) 1.8 Wave Period Range(s) 1.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wavemaking Description Period adjustable electronically, height adjustable mechanically Wave Direction Both Simulated Beach Yes Description of Beach Designed as needed using commercially available sand/sediment
Extracorporeal Shock Wave Lithotripsy Shock wave lithotripsy (SWL) was introduced in
Part IV Extracorporeal Shock Wave Lithotripsy #12;#12;Shock wave lithotripsy (SWL) was introduced in the fundamentals of shock wave generation and delivery. That is, lithotriptors have changed in form and mode, an acoustic shock wave. This pressure pulse, or shock wave, is responsible for breaking stones. However
Cleveland, Robin
Wave propagation through soils in centrifuge testing
Wave propagation phenomena in soils can be experimentally simulated using centrifuge scale models. An original excitation device (drop-ball arrangement) is proposed to generate short wave trains. Wave reflections on model boundaries are taken into account and removed by homomorphic filtering. Propagation is investigated through dispersion laws. For drop-ball experiments, spherical wave field analysis assuming linear viscoelasticity leads to a complete analytical description of wave propagation. Damping phenomena are examined and evaluated using this description.
Semblat, J F; 10.1142/S1363246998000071
High-Contrast Color-Stripe Pattern for Rapid Structured-Light Range Imaging
For structured-light range imaging, color stripes can be used for increasing the number of distinguishable light patterns compared to binary BW stripes. Therefore, an appropriate use of color patterns can reduce the number of light projections and range imaging is achievable in single video frame or in �one shot�. On the other hand, the reliability and range resolution attainable from color stripes is generally lower than those from multiply projected binary BW patterns since color contrast is affected by object color reflectance and ambient light. This paper presents new methods for selecting stripe colors and designing multiple-stripe patterns for �one-shot� and �two-shot� imaging. We show that maximizing color contrast between the stripes in one-shot imaging reduces the ambiguities resulting from colored object surfaces and limitations in sensor/projector resolution. Two-shot imaging adds an extra video frame and maximizes the color contrast between the first and second video frames to diminish the ambiguities even further. Experimental results demonstrate the effectiveness of the presented one-shot and two-shot color-stripe imaging schemes.
Changsoo Je; Sang Wook Lee; Rae-Hong Park
New Cool Roof Coatings and Affordable Cool Color Asphalt
New Cool Roof Coatings and New Cool Roof Coatings and Affordable Cool Color Asphalt Shingles Meng-Dawn Cheng Oak Ridge National Laboratory firstname.lastname@example.com; 865-241-5918 April 4, 2013 PM: Andre Desjarlais PI: Meng-Dawn Cheng, Ph.D. David Graham, Ph.D. Sue Carroll Steve Allman Dawn Klingeman Susan Pfiffner, Ph.D. (FY12) Karen Cheng (FY12) Partner: Joe Rokowski (Dow) Roof Testing Facility at ORNL Building Technologies Research and Integration Center 2 | Building Technologies Office eere.energy.gov * Building accounted for 41% of the US energy consumption in 2010 greater than either transportation (28%) or industry (31%).
Energy States of Colored Particle in a Chromomagnetic Field
The unitary transformation, which diagonalizes squared Dirac equation in a constant chromomagnetic field is found. Applying this transformation, we find the eigenfunctions of diagonalized Hamiltonian, that describe the states with definite value of energy and call them energy states. It is pointed out that, the energy states are determined by the color interaction term of the particle with the background chromofield and this term is responsible for the splitting of the energy spectrum. We construct supercharge operators for the diagonal Hamiltonian, that ensure the superpartner property of the energy states.
Sh. Mamedov
Ion Bernstein wave heating research
Ion Bernstein wave heating (IBWH) utilizes the ion Bernstein wave (IBW), a hot plasma wave, to carry the radio frequency (rf) power to heat tokamak reactor core. Earlier wave accessibility studies have shown that this finite-Larmor-radius (FLR) mode should penetrate into a hot dense reactor plasma core without significant attenuation. Moreover, the IBW`s low phase velocity ({omega}/k{sub {perpendicular}} {approx} V{sub Ti} {much_lt} V{sub {alpha}}) greatly reduces the otherwise serious wave absorption by the 3.5 MeV fusion {alpha}-particles. In addition, the property of IBW`s that k{sub {perpendicular}} {rho}{sub i} {approx} 1 makes localized bulk ion heating possible at the ion cyclotron harmonic layers. Such bulk ion heating can prove useful in optimizing fusion reactivity. In another vein, with proper selection of parameters, IBW`s can be made subject to strong localized electron Landau damping near the major ion cyclotron harmonic resonance layers. This property can be useful, for example, for rf current drive in the reactor plasma core. This paper discusses this research.
Ono, Masayuki
Ion Bernstein wave heating (IBWH) utilizes the ion Bernstein wave (IBW), a hot plasma wave, to carry the radio frequency (rf) power to heat tokamak reactor core. Earlier wave accessibility studies have shown that this finite-Larmor-radius (FLR) mode should penetrate into a hot dense reactor plasma core without significant attenuation. Moreover, the IBW's low phase velocity ({omega}/k{sub {perpendicular}} {approx} V{sub Ti} {much lt} V{sub {alpha}}) greatly reduces the otherwise serious wave absorption by the 3.5 MeV fusion {alpha}-particles. In addition, the property of IBW's that k{sub {perpendicular}} {rho}{sub i} {approx} 1 makes localized bulk ion heating possible at the ion cyclotron harmonic layers. Such bulk ion heating can prove useful in optimizing fusion reactivity. In another vein, with proper selection of parameters, IBW's can be made subject to strong localized electron Landau damping near the major ion cyclotron harmonic resonance layers. This property can be useful, for example, for rf current drive in the reactor plasma core. This paper discusses this research.
Ono, Masayuki.
Internal Wave�Wave Interactions. Part II: Spectral Energy Transfer and Turbulence Production
The spectral transfer of internal wave energy toward high vertical wavenumber kz and turbulence production ? is examined by ray tracing small-scale test waves in a canonical Garrett and Munk background wave field. Unlike previous ray-tracing ...
Haili Sun; Eric Kunze
Influence of Wave Propagation on the Doppler Spreading of Atmospheric Gravity Waves
The �Doppler spread� theory of atmospheric gravity waves has developed rapidly in recent years, from an initial theory of wave spectra into a general parameterization of gravity wave effects for use in global models of the middle atmosphere. Yet ...
Stephen D. Eckermann
Implicit�Explicit Multistep Methods for Fast-Wave�Slow-Wave Problems
Implicit�explicit (IMEX) linear multistep methods are examined with respect to their suitability for the integration of fast-wave�slow-wave problems in which the fast wave has relatively low amplitude and need not be accurately simulated. The ...
Dale R. Durran; Peter N. Blossey
Energy-momentum relation for solitary waves of relativistic wave equations
Solitary waves of relativistic invariant nonlinear wave equation with symmetry group U(1) are considered. We prove that the energy-momentum relation for spherically symmetric solitary waves coincides with the Einstein energy-momentum relation for point particles.
T. V. Dudnikova; A. I. Komech; H. Spohn
MHK Technologies/Hybrid wave Wind Wave pumps and turbins | Open Energy
Wind Wave pumps and turbins Wind Wave pumps and turbins < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Hybrid wave Wind Wave pumps and turbins.jpg Technology Profile Primary Organization Ocean Wave Wind Energy Ltd OWWE Technology Resource Click here Wave Technology Type Click here Point Absorber - Floating Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description 2Wave1Wind The hybrid wave power rig uses two wave converting technologies in addition to wind mills The main system is a pneumatic float in the category of overtopping as Wave Dragon In addition the pneumatic float can house point absorbers The hybrid wave power rig is based on the patented wave energy converter from 2005
Wave Power: Destroyer of Rocks; Creator of Clean Energy
E E PG&E Wave Energy Wave Energy Federal Utility Partnership Federal Utility Partnership Working Group Meeting Working Group Meeting Wave Energy Wave Energy Development Development Ontario, CA Ontario, CA November 18 November 18- -19, 200 19, 2009 9 Donald G. Price Donald G. Price Senior Consulting Scientist, PG&E Senior Consulting Scientist, PG&E Wave Power Overview Wave Power Overview * * What is Wave Power? What is Wave Power? o o Wave power or wave energy is the energy contained in ocean Wave power or wave energy is the energy contained in ocean o o Wave power or wave energy is the energy contained in ocean Wave power or wave energy is the energy contained in ocean waves that is converted into electricity by various means. waves that is converted into electricity by various means. o o It is a clean, renewable energy resource capable of being utilized
Gravitational waves from gravitational collapse
Gravitational wave emission from stellar collapse has been studied for nearly four decades. Current state-of-the-art numerical investigations of collapse include those that use progenitors with more realistic angular momentum profiles, properly treat microphysics issues, account for general relativity, and examine non-axisymmetric effects in three dimensions. Such simulations predict that gravitational waves from various phenomena associated with gravitational collapse could be detectable with ground-based and space-based interferometric observatories. This review covers the entire range of stellar collapse sources of gravitational waves: from the accretion induced collapse of a white dwarf through the collapse down to neutron stars or black holes of massive stars to the collapse of supermassive stars.
Fryer, Christopher L [Los Alamos National Laboratory; New, Kimberly C [Los Alamos National Laboratory
Wave | OpenEI Community
Wave Wave Home Ocop's picture Submitted by Ocop(5) Member 18 April, 2013 - 13:41 MHK LCOE Reporting Guidance Draft Cost Current DOE LCOE numerical modeling Performance Tidal Wave To normalize competing claims of LCOE, DOE has developed-for its own use-a standardized cost and performance data reporting process to facilitate uniform calculation of LCOE from MHK device developers. This standardization framework is only the first version in what is anticipated to be an iterative process that involves industry and the broader DOE stakeholder community. Multiple files are attached here for review and comment.Upload Files: application/vnd.openxmlformats-officedocument.wordprocessingml.document icon device_performance_validation_data_request.docx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon
Nonlocal theory of electromagnetic wave decay into two electromagnetic waves in a rippled density plasma channel
Parametric decay of a large amplitude electromagnetic wave into two electromagnetic modes in a rippled density plasma channel is investigated. The channel is taken to possess step density profile besides a density ripple of axial wave vector. The density ripple accounts for the momentum mismatch between the interacting waves and facilitates nonlinear coupling. For a given pump wave frequency, the requisite ripple wave number varies only a little w.r.t. the frequency of the low frequency decay wave. The radial localization of electromagnetic wave reduces the growth rate of the parametric instability. The growth rate decreases with the frequency of low frequency electromagnetic wave.
Sati, Priti; Tripathi, V. K. [Indian Institute of Technology, Hauz Khas, Delhi 110054 (India)
Nonlinear dissipation of circularly polarized Alfven waves due to the beam-induced obliquely propagating waves
In the present study, the dissipation processes of circularly polarized Alfven waves in solar wind plasmas including beam components are numerically discussed by using a 2-D hybrid simulation code. Numerical results suggest that the parent Alfven waves are rapidly dissipated due to the presence of the beam-induced obliquely propagating waves, such as kinetic Alfven waves. The nonlinear wave-wave coupling is directly evaluated by using the induction equation for the parent wave. It is also observed both in the 1-D and 2-D simulations that the presence of large amplitude Alfven waves strongly suppresses the beam instabilities.
Nariyuki, Y. [Faculty of Human Development, University of Toyama, 3190, Toyama City, Toyama 930-8555 (Japan); Hada, T. [Department of Earth System Science and Technology, Kyushu University, 6-1, Kasuga City, Fukuoka 816-8580 (Japan); Tsubouchi, K. [Department of Earth and Planetary Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)
Generating color terrain images in an emergency response system
The Atmospheric Release Advisory Capability (ARAC) provides real-time assessments of the consequences resulting from an atmospheric release of radioactive material. In support of this operation, a system has been created which integrates numerical models, data acquisition systems, data analysis techniques, and professional staff. Of particular importance is the rapid generation of graphical images of the terrain surface in the vicinity of the accident site. A terrain data base and an associated acquisition system have been developed that provide the required terrain data. This data is then used as input to a collection of graphics programs which create and display realistic color images of the terrain. The graphics system currently has the capability of generating color shaded relief images from both overhead and perspective viewpoints within minutes. These images serve to quickly familiarize ARAC assessors with the terrain near the release location, and thus permit them to make better informed decisions in modeling the behavior of the released material. 7 refs., 8 figs.
Belles, R.D.
Higgs Boson Mass predicted by the Four Color Theorem
We show that the mathematical proof of the four color theorem yields a perfect interpretation of the Standard Model of particle physics. The steps of the proof enable us to construct the t-Riemann surface and particle frame which forms the gauge. We specify well-defined rules to match the Standard Model in a one-to-one correspondence with the topological and algebraic structure of the particle frame. This correspondence is exact - it only allows the particles and force fields to have the observable properties of the Standard Model, giving us a Grand Unified Theory. In this paper, we concentrate on explicitly specifying the quarks, gauge vector bosons, the Standard Model scalar Higgs $H^{0}$ boson and the weak force field. Using all the specifications of our mathematical model, we show how to calculate the values of the Weinberg and Cabibbo angles on the particle frame. Finally, we present our prediction of the Higgs $H^{0}$ boson mass $M_{H^{0}} = 125.992 \\simeq 126 GeV$, as a direct consequence of the proof of the four color theorem.
Ashay Dharwadker; Vladimir Khachatryan
Cooling of Neutron Stars with Color Superconducting Quark Cores
We show that within a recently developed nonlocal chiral quark model the critical density for a phase transition to color superconducting quark matter under neutron star conditions can be low enough for these phases to occur in compact star configurations with masses below 1.3 M_solar. We study the cooling of these objects in isolation for different values of the gravitational mass. Our equation of state (EoS) allows for 2SC quark matter with a large quark gap \\~100 MeV for u and d quarks of two colors that coexists with normal quark matter within a mixed phase in the hybrid star interior. We argue that, if the phases with unpaired quarks were allowed, the corresponding hybrid stars would cool too fast. If they occured for M cooling data existing by today. We discuss a "2SC+X" phase, as a possibility to have all quarks paired in two-flavor quark matter under neutron star constraints, where the X-gap is of the order of 10 keV - 1 MeV. Density independent gaps do not allow to fit the cooling data. Only the presence of an X-gap that decreases with increase of the density could allow to appropriately fit the data in a similar compact star mass interval to that following from a purely hadronic model. This scenario is suggested as an alternative explanation of the cooling data in the framework of a hybrid star model.
Hovik Grigorian; David Blaschke; Dmitri Voskresensky
Plasma beat-wave accelerator
We perform an analytic study of some quantities relevant to the plasma beat-wave accelerator (PBWA) concept. We obtain analytic expressions for the plasma frequency, longitudinal electron velocity, plasma density and longitudinal plasma electric field of a nonlinear longitudinal electron plasma oscillation with amplitude less than the wave-breaking limit and phase velocity approaching the speed of light. We also estimate the luminosity of a single-pass e/sup +/e/sup -/ linear PBWA collider assuming the energy and collision beamstrahlung are fixed parameters.
Noble, R.J.
Proceedings from the 6th International Symposium on Light and Color
The 6th EPRI/LRO Lighting Research Symposium (February, 2006) was organized to present and examine current research information on the subject of Light and Color in relation to how they work together to affect the appearance of people and things. The intent was to provide consistent, industry-wide communication of lamp color properties to end users in a simple, easily-understood way. Historically, these color properties have not been well communicated. Consequently, an important "value-added" feature of ...
A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products
Wavelength (nm) In press at Solar Energy Materials & Solarcool asphalt shingles. Solar Energy Materials & Solar Cellsof common colorants, Solar Energy Materials & Solar Cells
Levinson, Ronnen
Interrelation of surface tension, optical turbidity, and color of operational transformer oils
Measurements of the acidity, optical turbidity, surface tension, and color of transformer oil from 54 power transformers, autotransformers, and shunt reactors are reported. Changes in surface tension, optical turbidity, and color are found to obey adequate linear correlations, while the acidity has no correlation with any of these properties. Numerical criteria for the maximum permissible state (quality) of the oil with respect to optical turbidity and color are obtained. Recommendations to operating staff are provided for cases in which the criteria for optical turbidity and color are exceeded.
L'vov, S. Yu.; Lyut'ko, E. O.; Lankau, Ya. V.; Komarov, V. B.; Seliverstov, A. F.; Bondareva, V. N.; L'vov, Yu. N.; L'vov, M. Yu.; Ershov, B. G.
The Flexible Display Center and Universal Display Corporation Produce Flexible, Full-Color AMOLED Prototype Displays
successfully fabricated the first full-color, flexible active matrix organic light emitting diode (AMOLED) display prototypes using the Center's bond/de-bond manufacturing
Rhoads, James
The Latent Heat of Single Flavor Color Superconductivity in a Magnetic Field
We calculate the energy release associated with first-order phase transition between different types of single flavor color superconductivity in a magnetic field.
Ping-ping Wu; Hang He; Defu Hou; Hai-cang Ren
Property:Maximum Wave Height(m) at Wave Period(s) | Open Energy Information
Wave Height(m) at Wave Period(s) Wave Height(m) at Wave Period(s) Jump to: navigation, search Property Name Maximum Wave Height(m) at Wave Period(s) Property Type String Pages using the property "Maximum Wave Height(m) at Wave Period(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 10.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 0.0 + Alden Wave Basin + 1.0 + C Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 + Coastal Inlet Model Facility + 2.3 + D Davidson Laboratory Tow Tank + 4.0 + DeFrees Large Wave Basin + 3.0 + DeFrees Small Wave Basin + 3.0 +
Solitary waves and homoclinic orbits
The notion that fluid motion often organizes itself into coherent structures has increasingly permeated modern fluid dynamics. Such localized objects appear in laminar flows and persist in turbulent states; from the water on windows on rainy days, to the circulations in planetary atmospheres. This review concerns solitary waves in fluids. More specifically, it centres around the mathematical description of solitary waves in a single spatial dimension. Moreover, it concentrates on strongly dissipative dynamics, rather than integrable systems like the KdV equation. One-dimensional solitary waves, or pulses and fronts as they are also called, are the simplest kinds of coherent structure (at least from a geometrical point of view). Nevertheless, their dynamics can be rich and complicated. In some circumstances this leads to the formation of spatio-temporal chaos in the systems giving birth to the solitary waves, and understanding that phenomenon is one of the major goals in the theory outlined in this review. Unfortunately, such a goal is far from achieved to date, and the author assess its current status and incompleteness.
Balmforth, N.J.
Gravitational Waves from Supersymmetry Breaking
In theories of supersymmetry breaking, it is often the case that there is more than one metastable vacuum. First-order phase transitions among such metastable vacua may generate a stochastic background of gravitational waves, the observation of which would provide a direct window into the supersymmetry-breaking sector.
Craig, Nathaniel J
Model for Shock Wave Chaos
We propose the following model equation, u[subscript t]+1/2(u[superscript 2]-uu[subscript s])[subscript x]=f(x,u[subscript s]) that predicts chaotic shock waves, similar to those in detonations in chemically reacting ...
Kasimov, Aslan R.
Directional Validation of Wave Predictions
A methodology for quantitative, directional validation of a long-term wave model hindcast is described and applied. Buoy observations are used as ground truth and the method does not require the application of a parametric model or data-adaptive ...
W. Erick Rogers; David W. C. Wang
Wave�Mean Flow Statistics
A relation between the statistics of large-scale waves and the mean flow is derived from the potential enstrophy equations integrated over an isobaric surface. The difference between time-averaged zonal-mean state and the radiative-dynamical ...
Mark R. Schoeberl
Shallow Angle Wave Profiling Lidar
A lidar scanning system is described that is primarily designed to measure sea wave shape. The device is capable of measuring real-time spatial profiles over distances of hundreds of meters, and as the lidar must inevitably operate from modest ...
M. R. Belmont; J. M. K. Horwood; R. W. F. Thurley; J. Baker
Wave Star Energy | Open Energy Information
Star Energy Star Energy Jump to: navigation, search Name Wave Star Energy Place Denmark Zip DK-2920 Product Denmark-based private wave device developer. References Wave Star Energy[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: Wave Star Energy 1 10 Scale Model Test This company is involved in the following MHK Technologies: C5 WaveStar This article is a stub. You can help OpenEI by expanding it. Wave Star Energy is a company located in Denmark . References ↑ "Wave Star Energy" Retrieved from "http://en.openei.org/w/index.php?title=Wave_Star_Energy&oldid=678928" Categories: Clean Energy Organizations
Generation of Turbulence by Atmospheric Gravity Waves
The standard current criterion for the generation of turbulence by atmospheric gravity waves and for the associated limitation on wave growth is based upon the standard criterion for static instability of the unperturbed atmosphere, namely, that ...
Colin O. Hines
Interactions between Rain and Wind Waves
Effects of rain on surface waves have been investigated in a circulating wind-wave tank. Surface displacement and slope spectra under different wind velocities were measured near the upwind and downwind edges of a region with simulated rains. ...
Ying-Keung Poon; Shih Tang; Jin Wu
Equatorial Solitary Waves. Part 2: Envelope Solitons
Via the method of multiple scales, it is shown that the time and space evolution of the envelope of wave packets of weakly nonlinear, strongly dispersive equatorial waves is governed by the Nonlinear Schr�dinger equation. The diverse phenomena of ...
Anelastic Internal Wave Packet Evolution and Stability
As upward-propagating anelastic internal gravity wave packets grow in amplitude, nonlinear effects develop as a result of interactions with the horizontal mean flow that they induce. This qualitatively alters the structure of the wave packet. The ...
Hayley V. Dosser; Bruce R. Sutherland
Breaking of Wind-Generated Waves
Breaking of wind-generated waves was studies in a laboratory tank. The critical surface slope and global wave steepness for inception of breaking were evaluated. Besides the frequency of occurrence, two other characteristic quantities, height and ...
Delun Xu; Paul A. Hwang; Jin Wu
Solving general shallow wave equations on surfaces
We propose a new framework for solving General Shallow Wave Equations (GSWE) in order to efficiently simulate water flows on solid surfaces under shallow wave assumptions. Within this framework, we develop implicit schemes for solving the external forces ...
Huamin Wang; Gavin Miller; Greg Turk
Shock Waves in Currents and Outflows
Shock waves are discontinuities (in the physical properties of a fluid) which behave in an organized manner. The possibility that such waves may occur in oceanic boundary currents is examined with a nonlinear two-layer analytical model. Attention ...
Observations of a Mesoscale Ducted Gravity Wave
This paper reports coordinated observations of a mesoscale gravity wave made during the FRONTS 84 field experiment conducted in southwestern France in the summer of 1984. The observations were unique in the sense that all relevant wave ...
F. M. Ralph; V. Venkateswaran; M. Crochet
Motor Wave Group | Open Energy Information
Wave Group Jump to: navigation, search Name Motor Wave Group Place Hong Kong Sector Marine and Hydrokinetic Website http:www.motorwavegroup.com Region China LinkedIn Connections...
An Analysis of Wave-Turbulence Interaction
We present the results of an analytical and numerical calculation of the interaction between an internal gravity wave and a wave-induced turbulence. The initial atmospheric state, assumed horizontally homogeneous, is statically and dynamically ...
D. Fua; G. Chimonas; F. Einaudi; O. Zeman
Wind Waves and Sun | Open Energy Information
Waves and Sun Jump to: navigation, search Name Wind Waves and Sun Sector Marine and Hydrokinetic Website http:www.windwavesandsun.com Region United States LinkedIn Connections...
How to excite a rogue wave
We propose initial conditions that could facilitate the excitation of rogue waves. Understanding the initial conditions that foster rogue waves could be useful both in attempts to avoid them by seafarers and in generating highly energetic pulses in optical fibers.
Akhmediev, N.; Ankiewicz, A. [Optical Sciences Group, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia); Soto-Crespo, J. M. [Instituto de Optica, CSIC, Serrano 121, 28006 Madrid (Spain)
Wave Breaking Dissipation Observed with �SWIFT� Drifters
Energy dissipation rates during ocean wave breaking are estimated from high-resolution profiles of turbulent velocities collected within 1 m of the surface. The velocity profiles are obtained from a pulse-coherent acoustic Doppler sonar on a wave-...
Jim Thomson
Eady Edge Waves and Rapid Development
Perturbations of the classical Eady model are treated in terms of the system's two intrinsic baroclinic edge waves. This provides a simple quantitative example of the wave coupling interpretation of quasigeostrophic instability and a compact ...
H. C. Davies; C. H. Bishop
The Dynamic Balance of Internal Waves
For oceanic internal waves with vertical scales larger than 1 m the evolution of the spectrum is adequately described by weak-interaction theory. Based on simple physical arguments, a model for internal-wave energy dissipation predicts ...
C. Henry McComas; Peter M�ller
Energy Transmission by Barotropic Rossby Waves Revisited
This article presents a semianalytic method to investigate the properties of energy transmission across bottom topography by barotropic Rossby waves. The method is first used to revisit the analytical estimates derived from wave-matching ...
R. P. Matano; E. D. Palma
Resonant Planetary Waves in a Spherical Atmosphere
A global model of planetary wave propagation in a spherical atmosphere is used to examine the spectrum of free or resonant planetary waves of the solstitial stratosphere. These free modes are located by forcing the model with a weak periodic ...
Mark R. Schoeberl; John H. E. Clark
Mesoscale Energy Spectra of Moist Baroclinic Waves
The role of moist processes in the development of the mesoscale kinetic energy spectrum is investigated with numerical simulations of idealized moist baroclinic waves. Dry baroclinic waves yield upper-tropospheric kinetic energy spectra that ...
Michael L. Waite; Chris Snyder
Wave Energy Centre | Open Energy Information
search Name Wave Energy Centre Address Wave Energy Centre Av Manuela da Maia 36 R C Dto Place Lisboa Zip 1000-201 Sector Marine and Hydrokinetic Phone number (+351) 21...
Radiative Forcing of Stationary Planetary Waves
The stationary wave components of the planetary-scale circulation are maintained by topographic forcing and by latent and sensible heat transfers and radiation. These waves have a potential vorticity balance mainly due to vertically differential ...
Leo J. Donner; Hsiao-Lan Kuo
Rossby Wave Propagation an Beta-Planes
The numerical modeling of stratospheric, quasi-geostrophic Rossby wave propagation on a beta-plane channel is examined to determine how wave propagation is affected by the use of low horizontal (spectral) resolution. This study considers time ...
Donal O'Sullivan
Kinetic Wave Power | Open Energy Information
Kinetic Wave Power Jump to: navigation, search Name Kinetic Wave Power Address 2861 N Tupelo St Place Midland Zip 48642 Sector Marine and Hydrokinetic Phone number 989-839-9757...
Worldwide Measurements of Directional Wave Spreading
The directional spreading of waves is important for both theoretical and practical reasons. Enough measurements have now been made to draw conclusions about the behavior of wave spreading at sites in different climatic regimes. The measurements ...
George Z. Forristall; Kevin C. Ewans
Generation of sand bars under surface waves
(cont.) Experiments were performed in a large wave flume to validate the theory and to study additional aspects of sand bar evolution. The wave envelope and bar profile were recorded for low and high beach reflection, ...
Hancock, Matthew James, 1975-
Wind effects on shoaling wave shape
breaking in the presence of wind drift and swell. J. Fluidlin, 1995: Asymmetry of wind waves studied in a laboratorycoupling between swell and wind-waves. J. Phys. Oceanogr. ,
Feddersen, F; Veron, F
Inertia�Gravity Waves in the Stratosphere
The propagation and refraction of stationary inertia�gravity waves in the winter stratosphere is examined with ray tracing. Due to their smaller vertical group velocity these waves experience more lateral ray movement and horizontal refraction ...
Timothy J. Dunkerton
Enhanced and Inhibited Gravity Wave Spectra
Balloon measurements were used to investigate gravity waves in the upper troposphere and lower stratosphere above the Canadian high Arctic. The amount of gravity wave activity in the stratosphere was found to be related to particular ...
James A. Whiteway
Wave-driven Countercurrent Plasma Centrifuge
A method for driving rotation and a countercurrent flow in a fully ionized plasma centrifuge is described. The rotation is produced by radiofrequency waves near the cyclotron resonance. The wave energy is transferred into potential energy in a manner similar to the ? channeling effect. The countercurrent flow may also be driven by radiofrequency waves. By driving both the rotation and the flow pattern using waves instead of electrodes, physical and engineering issues may be avoided.
A.J. Fetterman and N.J. Fisch
Applications Guide for Guided Wave Inspection Technology
In recent years, long-range ultrasonic guided wave technology has been emerging as a quick and economical method of obtaining a comprehensive view of the condition of piping systems, tubing, and other components (including areas that are difficult to access) by launching and detecting waves from a remote accessible location. This report describes how ultrasonic guided waves can be applied for various components and systems. Guidance on surface preparation, generation of various wave modes, and interpreta...
Quantum thermal waves in quantum corrals
In this paper the possibility of the generation of the thermal waves in 2D electron gas is investigated. In the frame of the quantum heat transport theory the 2D quantum hyperbolic heat transfer equation is formulated and numerically solved. The obtained solutions are the thermal waves in electron 2D gases. As an exapmle the thermal waves in quantum corrals are described. Key words: 2D electron gas, quantum corrals, thermal waves.
J. Marciak-Kozlowska; M. Kozlowski
Patterned three-color ZnCdSeZnCdMgSe quantum-well structures for integrated full-color and white light emitters
. This result demonstrates the feasibility of fabricating integrated full-color light emitting diode and laser American Institute of Physics. S0003-6951 00 04149-8 Light emitting diodes LEDs and laser diodes LDs having
The asymmetric relations among galaxy color, structure, and environment
We investigate the dependences of galaxy star-formation history and galaxy morphology on environment, using color and H-alpha equivalent width as star-formation history indicators, using concentration and central surface brightness as morphological indicators, and using clustocentric distance as an environment indicator. Clustocentric distance has the virtue that it can be measured with very high precision over a large dynamic range. We find the following asymmetry between morphological and star-formation history parameters: star-formation history parameters relate directly to the clustocentric distance while morphological parameters relate to the clustocentric distance only indirectly through their relationships with star-formation history. This asymmetry has important implications for the role that environment plays in shaping galaxy properties and it places strong constraints on theoretical models of galaxy formation. Current semi-analytic models do not reproduce this effect.
Alejandro D. Quintero; Andreas A. Berlind; MichaelR. Blanton; David W. Hogg
Color superconductivity with determinant interaction in strange quark matter
We investigate the effect of six fermion determinant interaction on color superconductivity as well as on chiral symmetry breaking. Coupled mass gap equations and the superconducting gap equation are derived through the minimisation of the thermodynamic potential. The effect of nonzero quark -- antiquark condensates on the superconducting gap is derived. This becomes particularly relevant for the case of 2-flavor superconducting matter with unpaired strange quarks in the diquark channel. While the effect of six fermion interaction leads to an enhancement of u-d superconductivity, due to nonvanishing strange quark--antiquark condensates, such an enhancement will be absent at higher densities for u-s or d-s superconductivity due to early (almost) vanishing of light quark-- antiquark condensates.
Amruta Mishra; Hiranmaya Mishra
Shock Waves in Quasicrystals JOHANNES ROTH
Shock Waves in Quasicrystals JOHANNES ROTH Institut f�?ur Theoretische und Angewandte Physik, Universit�?at Stuttgart, D70550 Stuttgart, Germany Abstract Shock waves in quasicrystals of the AlCuLi type: at low shock wave intensity the system reacts elastically, at high intensities it is turned amorphous
Roth, Johannes
Interaction of light with gravitational waves
The physical properties of electromagnetic waves in the presence of a gravitational plane wave are analyzed. Formulas for the Stokes parameters describing the polarization of light are obtained in closed form. The particular case of a constant amplitude gravitational wave is worked out explicitly.
Shahen Hacyan
Decay of a Near-Inertial Wave
The decay of a downward propagating near-inertial wave was observed over four days. During this short period, the energy of the near-inertial wave decreased by 70%. The shear layers produced by the wave were regions of enhanced turbulent ...
Dave Hebert; J. N. Moum
Superadiabatic Excess and Gravity Wave Saturation
Attention is called to a recent calculation of the superadiabatic excess�the ratio of wave amplitude at saturation to wave amplitude at convective instability threshold�caused by a saturated gravity wave. (This excess is also referred to as the ...
J. Weinstock
Large hazardous floods as translatory waves
The theory for non-stationary flow in translatory waves is developed for an inclined plane in a prismatic channel and a funneling channel. The existence of translatory waves traveling over dry land or superimposed on constant flow is established, and ... Keywords: Flood hazard, Flow simulation, Jokulhlaup, Translatory waves
Jonas El�asson; Snorri Pall Kjaran; Sigurdur Larus Holm; Magnus Tumi Gudmundsson; Gudrun Larsen
Robots on Waves By Cianna Beltran, Editor
. The Wave Glider is about the size of a surfboard with a wave-based propulsion system and two solar panels that move across the ocean measuring weather and water quality. The goal is that these robot wave riders such as water quality and weather conditions. Photo courtesy of http://liquidr.com/ #12;Page 2Seawords, December
One of the leading models for electron acceleration in solar flares is stochastic acceleration by weakly turbulent fast magnetosonic waves ({sup f}ast waves{sup )}. In this model, large-scale flows triggered by magnetic reconnection excite large-wavelength fast waves, and fast-wave energy then cascades from large wavelengths to small wavelengths. Electron acceleration by large-wavelength fast waves is weak, and so the model relies on the small-wavelength waves produced by the turbulent cascade. In order for the model to work, the energy cascade time for large-wavelength fast waves must be shorter than the time required for the waves to propagate out of the solar-flare acceleration region. To investigate the effects of wave escape, we solve the wave kinetic equation for fast waves in weak turbulence theory, supplemented with a homogeneous wave-loss term. We find that the amplitude of large-wavelength fast waves must exceed a minimum threshold in order for a significant fraction of the wave energy to cascade to small wavelengths before the waves leave the acceleration region. We evaluate this threshold as a function of the dominant wavelength of the fast waves that are initially excited by reconnection outflows.
Pongkitiwanichakul, Peera; Chandran, Benjamin D. G. [Space Science Center and Department of Physics, University of New Hampshire, Durham, NH 03824 (United States); Karpen, Judith T. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); DeVore, C. Richard, E-mail: firstname.lastname@example.com, E-mail: firstname.lastname@example.com, E-mail: email@example.com, E-mail: firstname.lastname@example.com [Naval Research Laboratory, Washington, DC 20375 (United States)
To Wave Or Not To Wave? Order Release Policies for Warehouses with an Automated Sorter
Wave-based release policies are prevalent in warehouses with an automated sorter, and take different
Gallien, J�r�mie
The Effects of Wave Energy Converters on a Monochromatic Wave Climate
in wave energy converters as a possible means of providing renewable energy, the effects of a wave energy The interest in renewable energies is currently increasing due to the reported rise in global temperature is that of wave energy. The research is multifaceted and includes research on the efficiency of wave energy
Fox-Kemper, Baylor
Suppression of Stationary Planetary Waves by Internal Gravity Waves in the Mesosphere
The suppression of stationary planetary waves by internal gravity waves in the mesosphere is treated using a quasi-geostrophic model on a midlatitude beta-plane. The drag forces due to internal gravity waves are parameterized based on the wave ...
Saburo Miyahara
Effects of Wave�Wave and Wave-Mean Flow Interactions on the Growth and Maintenance of Transient Planetary Waves in the Presence of a Mean Thermal Restoring Force
In order to clarify the effects of wave�wave and wave-mean flow interactions on the growth and maintenance of extratropical tropospheric transient waves in the presence of a mean thermal restoring force, numerical experiments are conducted with ...
Y. Hayashi; D. G. Golder
Interaction of Ocean Waves with a Soft Bottom
Soft muddy bottoms have significant effects on properties of water waves which propagate over them. The wave dispersion equation is modified and wave energy is dissipated by the coupling between the waves in water and those induced in the mud ...
S. V. Hsiao; O. H. Shemdin
Two Types of Wave Breaking in an Aquaplanet GCM
The characteristics of two distinct types of wave breaking in an aquaplanet general circulation model (GCM) are described. A systematic analysis of wave breaking is possible because when a baroclinic wave packet is present, the wave breaking ...
Sukyoung Lee; Steven Feldstein
Extreme wave impinging and overtopping
This investigates the velocity fields of a plunging breaking wave impinging on a structure through measurements in a two-dimensional wave tank. As the wave breaks and overtops the structure, so-called green water is generated. The flow becomes multi-phased and chaotic as a highly aerated region is formed in the flow in the vicinity of the structure while water runs up onto the structure. In this study, particle image velocimetry (PIV) was employed to measure the velocity field of the water dominant region. For measurements of an aerated region that cannot be measured by PIV, a new measurement method called bubble image velocimetry (BIV) was developed. The principle and setup of the BIV method were introduced and validated. Mean and turbulence properties were obtained through ensemble averaging repeated tests measured by both methods. The dominant and maximum velocity of the breaking wave and associated green water are discussed for the three distinct phases of the impingement-runup-overtopping sequence. The distribution of the green water velocity along the top of the structure has a nonlinear profile and the maximum velocity occurs near the front of the fast moving water. Using the measured data and applying dimensional analysis, a similarity profile for the green water flow on top of the structure was obtained, and a prediction equation was formulated. The dam breaking solution used for the green water prediction was examined with determining initial water depth based on the experiment conditions. Comparison between measurements, the prediction equation, and the dam breaking flow was made. The prediction equation and the dam break flow with appropriate initial water depth may be used to predict the green water velocity caused by extreme waves in a hurricane. To demonstrate the aeration of the breaking wave and overtopping water, void fraction was also investigated. There is strong aeration in the region of overtopping water front generated by a plunging breaker. Void fraction of overtopping water was measured using a fiber optic reflectometer (FOR). The measured velocity and void fraction were also used to estimate flow rate and water volume of overtopping water.
Ryu, Yong Uk
Categorical perception of voicing, colors and facial expressions: A developmental study
The aim of the present paper was to compare the development of perceptual categorization of voicing, colors and facial expressions in French-speaking children (from 6 to 8 years) and adults. Differences in both categorical perception, i.e. the correspondence ... Keywords: Boundary precision, Categorical perception, Colors, Development, Facial expressions, Voice onset time
I. Hoonhorst; V. Medina; C. Colin; E. Markessis; M. Radeau; P. Deltenre; W. Serniclaes
Power-Saving Color Transformation of Mobile Graphical User Interfaces on OLED-based Displays
Power-Saving Color Transformation of Mobile Graphical User Interfaces on OLED-based Displays Mian to their emissive nature. They bring a new opportunity for power saving by transforming GUI colors. In this work, we to automatically transform GUIs for power reduction. Firstly, most existing GUIs are designed for conventional LCDs
Zhong, Lin
Color space transformations for analysis and enhancement of ancient degraded manuscripts
In this paper we focus on ancient manuscripts, acquired in the RGB modality, which are degraded by the presence of complex background textures that interfere with the text of interest. Removing these artifacts is not trivial, especially with ancient ... Keywords: Color Channel Decorrelation, Color Space Transformations, document Analysis and Enhancement
A. Tonazzini
A color-action perceptual approach to the classification of animated movies
We address a particular case of video genre classification, namely the classification of animated movies. This task is achieved using two categories of content descriptors, temporal and color based, which are adapted to this particular content. Temporal ... Keywords: action content, animated genre classification, color properties, video indexing
Bogdan Ionescu; Constantin Vertan; Patrick Lambert; Alexandre Benoit
Vector Color Filter Array Demosaicing Maya R. Gupta and Ting Chen
Department of Electrical Engineering, Stanford University, CA 94305, USA ABSTRACT Single-sensor digital, Color Demosaicing, Color Filter Array (CFA), Vector Median 1. INTRODUCTION Usage of digital cameras has provided motivation to improve all elements of the digital photography signal chain. To lower cost
Salvaggio, Carl
A Statistical Learning-Based Method for Color Correction of Underwater Images
A Statistical Learning-Based Method for Color Correction of Underwater Images Luz A. Torres the problem of color correction of un- derwater images using statistical priors. Underwater images present by using a non-parametric sampling procedure. Experimental results on a variety of underwater scenes
Dudek, Gregory
Review: A general framework for second-order blind separation of stationary colored sources
This paper focuses on the blind separation of stationary colored sources using the second-order statistics (SOS) of their instantaneous mixtures. We first start by presenting a brief overview of existing contributions in that field. Then, we present ... Keywords: Blind source separation, Second-order statistics, Stationary colored sources
Abdeldjalil A?ssa-El-Bey; Karim Abed-Meraim; Yves Grenier; Yingbo Hua
Parallel Color Coding and Graph Partitioning Enabling Subgraph Counting for Massive Graphs
Zhao, Maleq Khan, V.S. Anil Kumar, Madhav V. Marathe Virginia Tech The Problem The problem is to count the error.) a) Color each vertex of G uniformly at random with a color from {1,...,k}. b) Count Xi The total running time of ParSE can be bounded by: Here P is the number of partitions, Q is the number
Khan, Maleq
Color Removal from Pulp Mill Effluent Using Coal Ash Produced from Georgia Coal Combustion Power Plants
Color Removal from Pulp Mill Effluent Using Coal Ash Produced from Georgia Coal Combustion Power color from pulp mill effluent using coal ash. Prevent coal ash adsorbent from leaching arsenic, chromium, lead, and zinc. Define a treatment procedure using coal ash that will result in the maximum
Hutcheon, James M.
A design decision-making support model for customized product color combination
The need for product customization during product development processes will continue to increase. Product customization can satisfy consumer needs and preferences. Altering the colors and appearance of module parts is an effectual method of achieving ... Keywords: Color combination, Customization, Decision-making, Fuzzy analytic hierarchy process (FAHP), Image compositing
Min-Yuan Ma; Cheih-Ying Chen; Fong-Gong Wu
Sensitivity to Dark Energy candidates by searching for four-wave mixing of high-intensity lasers in the vacuum
Theoretical challenges to understand Dark Matter and Dark Energy suggest the existence of low-mass and weakly coupling fields in the universe. The quasi-parallel photon-photon collision system (QPS) can provide chances to probe the resonant production of these light dark fields and the induced decay by the coherent nature of laser fields simultaneously. By focusing high-intensity lasers with different colors in the vacuum, new colors emerge as the signature of the interaction. Because four photons in the initial and final states interplay via the dark field exchange, this process is analogous to four-wave mixing in quantum optics, where the frequency sum and difference among the incident three waves generate the fourth wave with a new frequency via the nonlinear property of crystals. The interaction rate of the four-wave mixing process has the cubic dependence on the intensity of each wave. Therefore, if high-intensity laser fields are given, the sensitivity to the weakly coupling of dark fields to photons rapidly increases over the wide mass range below sub-eV. Based on the experimentally measurable photon energies and the linear polarization states, we formulate the relation between the accessible mass-coupling domains and the high-intensity laser parameters, where the effects of the finite spectrum width of pulse lasers are taken into account. The expected sensitivity suggests that we have a potential to explore interactions at the Super-Planckian coupling strength in the sub-eV mass range, if the cutting-edge laser technologies are properly combined.
Kensuke Homma
Generation kinetics of color centers in irradiated poly(4-methyl-1-pentene)
The transient absorbance of poly(4-methyl-1-pentene) (PMP) irradiated with gamma rays at elevated temperatures has been investigated. The absorbance in the ultraviolet and visible range increases with gamma ray dose. A bathochromic shift in transmission spectra emerges significantly upon irradiation. A first-order generation model is proposed to analyze the kinetics of color centers during annealing. The activation energy of the color center increases with increasing gamma ray dose. The equilibrium behavior of color centers in PMP is similar to that of vacancies in metals, and the formation energy of color centers in PMP decreases with increasing gamma ray dose. However, annealable color centers are not observed in this study.
Peng, J. S.; Li, C. L.; Lee, Sanboh [Department of Materials Science and Engineering National Tsing Hua University, Hsinchu 300, Taiwan (China); Chou, K. F. [Department of Biomechanical Engineering Yuanpei University, Hsinchu 300, Taiwan (China)
Statistics of Extreme Waves in Random Media
Waves traveling through random media exhibit random focusing that leads to extremely high wave intensities even in the absence of nonlinearities. Although such extreme events are present in a wide variety of physical systems and the statistics of the highest waves is important for their analysis and forecast, it remains poorly understood in particular in the regime where the waves are highest. We suggest a new approach that greatly simplifies the mathematical analysis and calculate the scaling and the distribution of the highest waves valid for a wide range of parameters.
Jakob J. Metzger; Ragnar Fleischmann; Theo Geisel
Thermal Gravitational Waves from Primordial Black Holes
Thermal gravitational waves can be generated in various sources such as, in the cores of stars, white dwarfs and neutron stars due to the fermion collisions in the dense degenerate Fermi gas. Such high frequency thermal gravitational waves can also be produced during the collisions in a gamma ray burst or during the final stages of the evaporation of primordial black holes. Here we estimate the thermal gravitational waves from primordial black holes and estimate the integrated energy of the gravitational wave emission over the entire volume of the universe and over Hubble time. We also estimate the gravitational wave flux from gamma ray bursts and jets.
C. Sivaram; Kenath Arun
Reconstruction of nonlinear wave propagation
Disclosed are systems and methods for characterizing a nonlinear propagation environment by numerically propagating a measured output waveform resulting from a known input waveform. The numerical propagation reconstructs the input waveform, and in the process, the nonlinear environment is characterized. In certain embodiments, knowledge of the characterized nonlinear environment facilitates determination of an unknown input based on a measured output. Similarly, knowledge of the characterized nonlinear environment also facilitates formation of a desired output based on a configurable input. In both situations, the input thus characterized and the output thus obtained include features that would normally be lost in linear propagations. Such features can include evanescent waves and peripheral waves, such that an image thus obtained are inherently wide-angle, farfield form of microscopy.
Fleischer, Jason W; Barsi, Christopher; Wan, Wenjie
Millimeter-wave active probe
A millimeter-wave active probe for use in injecting signals with frequencies above 50GHz to millimeter-wave and ultrafast devices and integrated circuits including a substrate upon which a frequency multiplier consisting of filter sections and impedance matching sections are fabricated in uniplanar transmission line format. A coaxial input and uniplanar 50 ohm transmission line couple an approximately 20 GHz input signal to a low pass filter which rolls off at approximately 25 GHz. An input impedance matching section couples the energy from the low pass filter to a pair of matched, antiparallel beam lead diodes. These diodes generate odd-numberd harmonics which are coupled out of the diodes by an output impedance matching network and bandpass filter which suppresses the fundamental and third harmonics and selects the fifth harmonic for presentation at an output.
Majidi-Ahy, Gholamreza (Sunnyvale, CA); Bloom, David M. (Portola Valley, CA)
OTRC Wave Basin | Open Energy Information
OTRC Wave Basin OTRC Wave Basin Jump to: navigation, search Basic Specifications Facility Name OTRC Wave Basin Overseeing Organization Texas A&M (OTRC) Hydrodynamic Testing Facility Type Wave Basin Length(m) 45.7 Beam(m) 30.5 Depth(m) 5.8 Water Type Freshwater Cost(per day) $300/hour (excluding labor) Special Physical Features 4.6m wide x 9.1m long x 16.8m deep pit with adjustable depth floor in test area Towing Capabilities Towing Capabilities Yes Maximum Velocity(m/s) 0.6 Length of Effective Tow(m) 27.4 Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.9 Maximum Wave Height(m) at Wave Period(s) 4.0 Maximum Wave Length(m) 25 Wave Period Range(s) 4.0 Current Velocity Range(m/s) 0.6 Programmable Wavemaking Yes Wavemaking Description GEDAP 3D wave generation software, 48 hinged flap wave generator
Color, the Visual Arts, and Representations of Otherness in the Victorian Novel
This dissertation investigates the cultural connections made between race and color in works of fiction from the Victorian and Edwardian era, particularly how authors who are also artists invent fantastically colored characters who are purple, blue, red, and yellow to rewrite (and sometimes reclaim) difference in their fiction. These strange and eccentric characters include the purple madwoman in Charlotte Bront�s Jane Eyre (1847), the blue gentleman from Wilkie Collins�s Poor Miss Finch (1872), the red peddler in Thomas Hardy�s The Return of the Native (1878), and the little yellow girls of Arthur Conan Doyle�s �The Yellow Face� (1893) and Frances Hodgson Burnett�s The Secret Garden (1911). These fictional texts serve as a point of access into the cultural meanings of color in the nineteenth century and are situated at the intersection of Victorian discourses on the visual arts and race science. The second half of the nineteenth century constitutes a significant moment in the history of color: the rapid development of new color technologies helps to trigger the upheavals of the first avant-garde artistic movements and a reassessment of coloring�s prestige in the art academies. At the same time, race science appropriates color, using it as a criterion for classification in the establishment of global racial hierarchies. By imagining what it would be like to change one�s skin color, these artist-authors employ the aesthetic realm of color to explore the nature of human difference and alterity. In doing so, some of them are able to successfully formulate their own challenges to nineteenth-century racial discourse.
Durgan, Jessica
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
Supermassive black hole binaries (SMBHBs) are expected to emit a continuous gravitational wave signal in the pulsar timing array (PTA) frequency band (10{sup -9} to 10{sup -7} Hz). The development of data analysis techniques aimed at efficient detection and characterization of these signals is critical to the gravitational wave detection effort. In this paper, we leverage methods developed for LIGO continuous wave gravitational searches and explore the use of the F-statistic for such searches in pulsar timing data. Babak and Sesana have used this approach in the context of PTAs to show that one can resolve multiple SMBHB sources in the sky. Our work improves on several aspects of prior continuous wave search methods developed for PTA data analysis. The algorithm is implemented fully in the time domain, which naturally deals with the irregular sampling typical of PTA data and avoids spectral leakage problems associated with frequency domain methods. We take into account the fitting of the timing model and have generalized our approach to deal with both correlated and uncorrelated colored noise sources. We also develop an incoherent detection statistic that maximizes over all pulsar-dependent contributions to the likelihood. To test the effectiveness and sensitivity of our detection statistics, we perform a number of Monte Carlo simulations. We produce sensitivity curves for PTAs of various configurations and outline an implementation of a fully functional data analysis pipeline. Finally, we present a derivation of the likelihood maximized over the gravitational wave phases at the pulsar locations, which results in a vast reduction of the search parameter space.
Ellis, J. A.; Siemens, X.; Creighton, J. D. E. [Center for Gravitation, Cosmology and Astrophysics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211 (United States)
Nonlinear whistler wave scattering in space plasmas
In this paper the evolution of nonlinear scattering of whistler mode waves by kinetic Alfven waves (KAW) in time and two spatial dimensions is studied analytically. The authors suggest this nonlinear process as a mechanism of kinetic Alfven wave generation in space plasmas. This mechanism can explain the dependence of Alfven wave generation on whistler waves observed in magnetospheric and ionospheric plasmas. The observational data show a dependence for the generation of long periodic pulsations Pc5 on whistler wave excitation in the auroral and subauroral zone of the magnetosphere. This dependence was first observed by Ondoh T.I. For 79 cases of VLF wave excitation registered by Ondoh at College Observatory (L=64.6 N), 52 of them were followed by Pc5 geomagnetic pulsation generation. Similar results were obtained at the Loparskaia Observatory (L=64 N) for auroral and subauroral zone of the magnetosphere. Thus, in 95% of the cases when VLF wave excitation occurred the generation of long periodic geomagnetic pulsations Pc5 were observed. The observations also show that geomagnetic pulsations Pc5 are excited simultaneously or insignificantly later than VLF waves. In fact these two phenomena are associated genetically: the excitation of VLF waves leads to the generation of geomagnetic pulsations Pc5. The observations show intensive generation of geomagnetic pulsations during thunderstorms. Using an electromagnetic noise monitoring system covering the ULF range (0.01-10 Hz) A.S. Fraser-Smith observed intensive ULF electromagnetic wave during a large thunderstorm near the San-Francisco Bay area on September 23, 1990. According to this data the most significant amplification in ULF wave activity was observed for waves with a frequency of 0.01 Hz and it is entirely possible that stronger enhancements would have been measured at lower frequencies.
Yukhimuk, V.; Roussel-Dupre, R.
Acerca de las ondas Acerca de las ondas Volver Principal ESTOY PERDIDO!!! Hablando en términos simples, una onda es algo que oscila en el tiempo y en el espacio. Las ondas se extienden de un lugar a otro. Pueden vibrar periódicamente (como el sonido de la nota de un violín) o de modo no periódico (como en el sonido de una explosión, por ejemplo.) Todas las ondas tienen las siguientes propiedades: El tamaño de la vibración se llama su amplitud. Cuán seguido ocurre la vibración es la frecuencia. La distancia que la onda ha recorrido entre dos máximos es la longitud de onda. Puesto que una onda dada se propaga a una determinada velocidad, a través de un material, si Usted incrementa la frecuencia de la onda, la distancia entre crestas disminuirá (es decir se produce una disminución
Collective modes in the color flavor-locked phase.
We study the low-energy effective action for some collective modes of the color flavor-locked (CFL) phase of QCD. This phase of matter has long been known to be a superfluid because by picking a phase its order parameter breaks the quark-number U(1){sub B} symmetry spontaneously. We consider the modes describing fluctuations in the magnitude of the condensate, namely the Higgs mode, and in the phase of the condensate, namely the Nambu-Goldstone (NG) (or Anderson-Bogoliubov) mode associated with the breaking of U(1){sub B}. By employing as microscopic theory the Nambu-Jona-Lasinio model, we reproduce known results for the Lagrangian of the NG field to the leading order in the chemical potential and extend such results evaluating corrections due to the gap parameter. Moreover, we determine the interaction terms between the Higgs and the NG field. This study paves the way for a more reliable study of various dissipative processes in rotating compact stars with a quark matter core in the CFL phase.
Anglani, R.; Mannarelli, M.; Ruggieri, M. (Physics); (Univ. of Barcelona); (Kyoto Univ.); (Italian National Research Council)
1-2-3-flavor color superconductivity in compact stars
We suggest a scenario where the three light quark flavors are sequentially deconfined under increasing pressure in cold asymmetric nuclear matter, e.g., as in neutron stars. The basis for our analysis is a chiral quark matter model of Nambu--Jona-Lasinio (NJL) type with diquark pairing in the spin-1 single flavor (CSL) and spin-0 two/three flavor (2SC/CFL) channels, and a Dirac-Brueckner Hartree-Fock (DBHF) approach in the nuclear matter sector. We find that nucleon dissociation sets in at about the saturation density, n_0, when the down-quark Fermi sea is populated (d-quark dripline) due to the flavor asymmetry imposed by beta-equilibrium and charge neutrality. At about 3n_0 u-quarks appear forming a two-flavor color superconducting (2SC) phase, while the s-quark Fermi sea is populated only at still higher baryon density. The hybrid star sequence has a maximum mass of 2.1 M_sun. Two- and three-flavor quark matter phases are found only in gravitationally unstable hybrid star solutions.
David Blaschke; Fredrik Sandin; Thomas Klahn
Twelve massless flavors and three colors below the conformal window
We report new results for a frequently discussed gauge theory with twelve fermion flavors in the fundamental representation of the SU(3) color gauge group. The model, controversial with respect to its conformality, is important in non-perturbative studies searching for a viable composite Higgs mechanism Beyond the Standard Model (BSM). To resolve the controversy, we subject the model to opposite hypotheses inside and outside of the conformal window. In the first hypothesis we test chiral symmetry breaking ($\\chi{\\rm SB}$) with its Goldstone spectrum, $F_\\pi$, the $\\chi{\\rm SB}$ condensate, and several composite hadron states as the fermion mass is varied in a limited range with our best effort to control finite volume effects and extrapolation to the massless chiral limit. Supporting results for $\\chi{\\rm SB}$ from the running coupling based on the force between static sources and some preliminary evidence for the finite temperature transition are also presented. In the second test for the alternate hypothesis we probe conformal behavior driven by a single anomalous mass dimension under the assumption of unbroken chiral symmetry. Our results show a very low level of confidence in the conformal scenario. Staggered lattice fermions with stout-suppressed taste breaking are used throughout the simulations.
Zoltan Fodor; Kieran Holland; Julius Kuti; Daniel Nogradi; Chris Schroeder
Modeling of marine light absorption and ocean color : : Partitioning of total and particulate absorption coefficients and evaluation of an inverse reflectance algorithm
and C. McClain (1998), Ocean color chlorophyll algorithms6306. Mueller, J. L. , et al. (2003), Ocean Optics Protocolsfor Satellite Ocean Color Sensor Validation, Revision 4,
Zheng, Guangming
The Color of Money in Greater Boston: Patterns of Mortgage Lending and Residential Segregation at the Beginning of the New Century
1999. ��The Color of Money� Revisited: Racial Lending1988. �The Color of Money,� Atlanta-Journal Constitution (Nancy McArdle, 2004. �More than Money: The Spatial Mismatch
Campen, Jim
Quantum manipulation of two-color stationary light: Quantum wavelength conversion
We present a quantum manipulation of a traveling light pulse using double atomic coherence for two-color stationary light and quantum frequency conversion. The quantum frequency conversion rate of the traveling light achieved by the two-color stationary light phenomenon is near unity. We theoretically discuss the two-color stationary light for the frequency conversion process in terms of pulse area, energy transfer and propagation directions. The resulting process may apply the coherent interactions of a weak field to nonlinear quantum optics such as quantum nondemolition measurement.
Comparisons on offshore structure responses to random waves using linear and high-order wave theories
The predicted responses of an offshore structure when the wave induced kinematics are computed from different estimation methods can change significantly. The sometimes controversial results have recently motivated the development of a new methodology for wave kinematics prediction. While the methods commonly used by the offshore industry are empirical and semi-empirical modifications of Linear (random) Wave Theory, the new approach (Hybrid Wave Model) satisfies the principles of hydrodynamics and explicitly considers the non-linear effect of the wave-wave interactions on wave elevation, kinematics and evolution. This methodology has been proven to be more accurate and reliable for the estimations of wave kinematics, but its impact on the prediction of the structural response is yet to be investigated. In this study, the performance of the new methodology arid other methods currently used for kinematics prediction was tested. The (surge) response of two offshore structures designed specially for deep-oil production was estimated using three methods (Hybrid Wave Model, Wheeler "Stretching" and Linear Extrapolation) and compared with the corresponding laboratory measurements. The wave forces were computed from the conventional Morison Equation evaluating the ambient wave kinematics from the wave elevation measurements. A numerical scheme based on a Finite Element time integration technique (Newmark-beta method) was used for the response evaluation after it had been validated and calibrated by an analytical (linear) solution and measured responses for regular waves. The comparisons between measured and predicted responses using kinematics calculated from the Hybrid Wave Model showed excellent agreement, specially for the low frequency components, while those using methods based on linear modifications rendered poor underestimations. The low frequency (peak) responses of these deep-water offshore structures were found to be greatly dominated by very low frequency wave excitations, which are mainly due to the wave-wave interactions.
Ramos Heredia, Rafael Juda
Trajectory eigenmodes of an orbiting wave source
Resonances usually result from wave superpositions in cavities where they are due to the wave spatio-temporal folding imposed by the boundaries. These energy accumulations are the signature of the cavity eigenmodes. Here we study a situation in which wave superposition results from the motion of a source emitting sustained overlapping waves. It is found that resonances can be produced in an unbounded space, the boundary conditions being now defined by the trajectory. When periodic trajectories are investigated, it is found that for a discrete subset of orbits, resonant wave modes are excited. Trajectory eigenmodes thus emerge. These modes have three attributes. Their associated resonant wave fields are the Fourier transform of the source's trajectory. They are non-radiative and they satisfy the perimeter Bohr-Sommerfeld quantization rule.
Emmanuel Fort; Yves Couder
Refrigeration system having standing wave compressor
A compression-evaporation refrigeration system, wherein gaseous compression of the refrigerant is provided by a standing wave compressor. The standing wave compressor is modified so as to provide a separate subcooling system for the refrigerant, so that efficiency losses due to flashing are reduced. Subcooling occurs when heat exchange is provided between the refrigerant and a heat pumping surface, which is exposed to the standing acoustic wave within the standing wave compressor. A variable capacity and variable discharge pressure for the standing wave compressor is provided. A control circuit simultaneously varies the capacity and discharge pressure in response to changing operating conditions, thereby maintaining the minimum discharge pressure needed for condensation to occur at any time. Thus, the power consumption of the standing wave compressor is reduced and system efficiency is improved.
Lucas, Timothy S. (Glen Allen, VA)
SeWave | Open Energy Information
form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » SeWave Jump to: navigation, search Name SeWave Place Denmark Zip FO-110 Product Denmark-based 50:50 JV between UK's Wavegen and Faroese electricity company SEV to to design and build a tunnelled demonstration wave power plant in the Faroes Islands. References SeWave[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This article is a stub. You can help OpenEI by expanding it. SeWave is a company located in Denmark . References ↑ "SeWave"
Carnegie Wave Energy Limited | Open Energy Information
Carnegie Wave Energy Limited Carnegie Wave Energy Limited Jump to: navigation, search Name Carnegie Wave Energy Limited Address 1 124 Stirling Highway Place North Fremantle Zip 6159 Sector Marine and Hydrokinetic Year founded 1993 Number of employees 25 Website http://www.carnegiewave.com Region Australia LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: CETO La Reunion CETO3 Garden Island Perth Wave Energy Project PWEP This company is involved in the following MHK Technologies: CETO Wave Energy Technology This article is a stub. You can help OpenEI by expanding it. Retrieved from "http://en.openei.org/w/index.php?title=Carnegie_Wave_Energy_Limited&oldid=678263
Property:Wave Direction | Open Energy Information
Direction Direction Jump to: navigation, search Property Name Wave Direction Property Type String Pages using the property "Wave Direction" Showing 25 pages using this property. (previous 25) (next 25) A Alden Small Flume + Uni-Directional + Alden Wave Basin + Both + C Carderock Maneuvering & Seakeeping Basin + Both + Carderock Tow Tank 2 + Uni-Directional + Carderock Tow Tank 3 + Uni-Directional + Chase Tow Tank + Uni-Directional + Coastal Harbors Modeling Facility + Uni-Directional + Coastal Inlet Model Facility + Uni-Directional + Coastal Structures Modeling Complex + Both + D Davidson Laboratory Tow Tank + Uni-Directional + DeFrees Large Wave Basin + Uni-Directional + DeFrees Small Wave Basin + Uni-Directional + H Haynes Wave Basin + Both +
Interactions and Focusing of Nonlinear Water Waves
The coupled cubic nonlinear Schr\\"odinger (CNLS) equations are used to study modulational instabilities of a pair of nonlinearly interacting two-dimensional waves in deep water. It has been shown that the full dynamics of these interacting waves gives rise to localized large-amplitude wavepackets (wave focusing). In this short letter we attempt to verify this result numerically using a Fourier spectral method for the CNLS equations.
Harihar Khanal; Stefan C. Mancas; Shahrdad Sajjadi
Excitation of a slow wave structure
The Green's function on a slow wave structure is constructed. The Green's function includes all radial modes, and for each radial mode, all space harmonics. We compare the analytic solution of the frequency response on the slow wave structure with that obtained from a particle-in-cell code. Favorable comparison is obtained when the first few lower order modes are resonantly excited. This gives some confidence in the prediction of converting a pulse train into radiation using a slow wave structure.
Zhang Peng; Lau, Y. Y. [Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104 (United States); Hoff, Brad; French, D. M. [Air Force Research Laboratory, Kirtland AFB, Albuquerque, New Mexico 87117 (United States); Luginsland, J. W. [Air Force Office of Scientific Research, Arlington, Virginia 22203 (United States)
Lower Hybrid to Whistler Wave Conversion
In this presentation we discuss recent work concerning the conversion of whistler waves to lower hybrid waves (as well as the inverse process). These efforts have been motivated by the issue of attenuation of upward propagating whistler waves in the ionosphere generated by VLF transmitters on the ground, i.e., the 'Starks 20 db' problem, which affects the lifetimes of energetic electrons trapped in the geomagnetic field at low magnetic altitude (L). We discuss recent fluid and kinetic plasma simulations as well as ongoing experiments at UCLA to quantify linear and nonlinear mode conversion of lower hybrid to whistler waves.
Winske, Dan [Los Alamos National Laboratory
Shock Waves in Weakly Compressed Granular Media
We experimentally probe nonlinear wave propagation in weakly compressed granular media, and observe a crossover from quasi-linear sound waves at low impact, to shock waves at high impact. We show that this crossover grows with the confining pressure $P_0$, whereas the shock wave speed is independent of $P_0$ --- two hallmarks of granular shocks predicted recently. The shocks exhibit powerlaw attenuation, which we model with a logarithmic law implying that local dissipation is weak. We show that elastic and potential energy balance in the leading part of the shocks.
Siet van den Wildenberg; Rogier van Loo; Martin van Hecke
Phase-Coherent Amplification of Matter Waves
... in optical pulsed-dye laser amplifiers that are not well aligned. ... Superradiance is based on matter-wave bosonic stimulation, and thus the probability ...
Slow Wave Structures for Charged Particle Applications
of light in free space. This slower wave speed is important for acceleration of charged particles. The special shape of the cross-
Millimeter Wave Sensors for Clean Energy
Millimeter wave sensor data on refractory used for clean coal gasification will also be presented. Future applications in the area of clean energy will be�...
Millimeter-wave polarimetry instrumentation and analysis
Society of Photo-Optical Instrumentation Engineers (SPIE)of Photo-Optical Instrumentation Engineers (SPIE) ConferenceWave Polarimetry Instrumentation and Analysis A dissertation
Bierman, Evan M.
WindWaveFloat Final Report
capacity factor, and greater stability of the electrical power delivered to the grid. The research conducted under this grant investigated the integration of several wave energy device types into the WindFloat platform. Several of the resulting system designs demonstrated technical feasibility, but the size and design constraints of the wave energy converters (technical and economic) make the WindWaveFloat concept economically unfeasible at this time. Not enough additional generation could be produced to make the additional expense associated with wave energy conversion integration into the WindFloat worthwhile.
Alla Weinstein, Dominique Roddier, Kevin Banister
Hydropower, Wave and Tidal Technologies Available for ...
Site Map; Printable Version; Share this resource. Send a link to Hydropower, Wave and Tidal Technologies Available for Licensing - Energy Innovation Portalto someone ...
Convective Generation of Gravity Waves in Venus's Atmosphere: Gravity Wave Spectrum and Momentum Transport
The emission of internal gravity waves from a layer of dry convection embedded within a stable atmosphere with static stability and zonal winds varying in height is calculated. This theory is applied to Venus to investigate whether these waves ...
Stephen S. Leroy; Andrew P. Ingersoll
On the Representation of Rossby Wave Critical Layers and Wave Breaking in Zonally Truncated Models
A detailed comparison is made between the Stewartson-Warn-Warn analytical solution for a fully nonlinear, nondiffusive Rossby-wave critical layer and a new analytical solution for the corresponding zonally truncated, �wave-mean� or �quasi-linear� ...
P. H. Haynes; M. E. McIntyre
Frontal Wave Stability during Moist Deformation Frontogenesis. Part I: Linear Wave Dynamics
It has been shown that lower tropospheric potential vorticity zones formed during moist deformation frontogenesis will support growing waves if at some time the frontogenesis ceases. In this paper, the ways in which these waves are affected by ...
Craig H. Bishop; Alan J. Thorpe
Frontal Wave Stability during Moist Deformation Frontogenesis. Part II: The Suppression of Nonlinear Wave Development
In this paper, the role of horizontal deformation and the associated frontogenetic ageostrophic circulation in suppressing the development of nonlinear waves is assessed. Unless linear barotropic frontal waves can become nonlinear, the associated ...
Baroclinic Waves with Parameterized Effects of Moisture Interpreted Using Rossby Wave Components
A theoretical framework is developed for the evolution of baroclinic waves with latent heat release parameterized in terms of vertical velocity. Both wave�conditional instability of the second kind (CISK) and large-scale rain approaches are ...
Hylke de Vries; John Methven; Thomas H. A. Frame; Brian J. Hoskins
Thermally Induced Compression Waves and Gravity Waves Generated by Convective Storms
A three-dimensional, fully compressible cloud model is used to simulate a convective storm in order to investigate the properties of compression waves and gravity waves induced by latent heat release. Time series of the low-level pressure ...
Melville E. Nicholls; Roger A. Pielke Sr.
Variational Wave Data Assimilation in a Third-Generation Wave Model
The adjoint of the wave model WAM, which runs operationally performing global wave forecast at the European Centre for Medium-Range Weather Forecasts, has been constructed. In this model, the nonlinear interactions are described by the discrete ...
Miriam M. De Las Heras; Gerrit Burgers; Peter A. E. M. Janssen
Dissipative Waves Excited by Gravity-Wave Encounters with the Stably Stratified Planetary Boundary Layer
We suggest that the strata of strong echo returns frequently revealed by remote-sensor records of the stably stratified planetary bound layer (PBL) represent the wavefronts of dissipative waves (viscous and thermal-conduction waves) excited by ...
William H. Hooke; R. Michael Jones
A Mesoscale Gravity Wave Event Observed during CCOPE. Part III: Wave Environment and Probable Source Mechanisms
Synoptic and special mesoscale observations taken during the Cooperative Convective Precipitation Experiment (CCOPE) are used to describe the multiscale environment of a gravity wave event, understand the wave-environment interactions that led to ...
Steven E. Koch; Paul B. Dorian
Full-wave modeling of lower hybrid waves on Alcator C-Mod
This thesis focuses on several aspects of the Lower Hybrid (LH) wave physics, the common theme being the development of full-wave simulation codes based on Finite Element Methods (FEM) used in support of experiments carried ...
Meneghini, Orso (Orso-Maria Cornelio)
Spectral Distribution of Energy Dissipation of Wind-Generated Waves due to Dominant Wave Breaking
This paper considers an experimental attempt to estimate the spectral distribution of the dissipation due to breaking of dominant waves. A field wave record with an approximately 50% dominant-breaking rate was analyzed. Segments of the record, ...
Ian R. Young; Alexander V. Babanin
Simulation of Inertia�Gravity Waves in a Poleward-Breaking Rossby Wave
Poleward-breaking Rossby waves often induce an upper-level jet streak over northern Europe. Dominant inertia�gravity wave packets are observed downstream of this jet. The physical processes of their generation and propagation, in such a ...
Christoph Z�licke; Dieter Peters
Spectral Estimates of Gravity Wave Energy and Momentum Fluxes. Part III: Gravity Wave-Tidal Interactions
An application of the gravity wave parameterization scheme developed in the companion papers by Fritts and VanZandt and Fritts and Lu to the mutual interaction of gravity waves and tidal motions is presented. The results suggest that interaction ...
Wentong Lu; David C. Fritts
Excitation of fast waves by slow waves near the lower-hybrid frequency
Resonant and non-resonant decays of short wavelength lower hybrid waves into long wave-length whistler waves and ion acoustic waves are considered. It is shown that the dominant coupling to the ion acoustic mode arises from the magnetic force producing a pressure variation along the magnetic field lines. The growth rate and the threshold condition for this decay instability compare favorably with other decay instabilities near the lower-hybrid frequency. (auth)
Berger, R. L.; Chen, L.
Why Green is Your Color: A Woman's Guide to a Sustainable Career...
Career February 13, 2012 - 12:15pm Addthis Why Green is Your Color: A Woman's Guide to a Sustainable Career "Many occupations in the clean energy economy remain virtually untapped...
Calibration and Validation of Remotely Sensed Observations of Ocean Color from a Moored Data Buoy
Satellite remote sensing of ocean color has the potential to map global surface phytoplankton concentrations at rates of up to once per day, providing wide-area data on a number of fundamental ocean processes relating to biological production, ...
M. H. Pinkerton; J. Aiken
Two-Color Self-Seeding at LCLS | Stanford Synchrotron Radiation...
Two-Color Self-Seeding at LCLS Wednesday, September 18, 2013 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Franz-Josef Decker, Accelerator Directorate The Linac Coherent Light...
Color measurements with a consumer digital camera using spectral estimation techniques
The use of spectrophotometers for color measurements on printed substrates is widely spread among paper producers as well as within the printing industry. Spectrophotometer measurements are precise, but time-consuming procedures and faster methods are ...
Martin Solli; Mattias Andersson; Reiner Lenz; Bj�rn Kruse
Psychophysical evaluations of modulated color rendering for energy performance of LED-based architectural lighting
This thesis is focused on the visual perception evaluation of colors within an environment of a highly automated lighting control strategy. Digitally controlled lighting systems equipped with light emitting diodes, LEDs, ...
Thompson, Maria do Ros�rio
A context-sensitive meta-classifier for color-naming
Humans are sensitive to situational and semantic context when applying labels to colors. This is especially challenging for algorithms which attempt to replicate human categorization for communicative tasks. Additionally, ...
Kubat, Rony Daniel
A color spatial display based on a Raster framebuffer and varifocal mirror
A very simple 30 color display has been constructed. It consists of a 20 display viewed in a rapidly vibrating varifocal mirror. The changing focal length of the mirror is responsible for providing the depth; when the ...
Carson, Kenneth M
Cultural Differences in the Prevalence of Stereotype Activation and Explanations of Crime: Does Race Color Perception?
G. (2004). Seeing black: race, crime, and visual processing.and Explanations of Crime: Does Race Color Perception? Aand race-nonstereotypic crimes: the impact of response-time
Briones, Lilia Rebeca
Color neutrality effects in the phase diagram of the Polyakov--Nambu--Jona-Lasinio model
The phase diagram of a two-flavor Polyakov-loop Nambu-Jona-Lasinio model is analyzed imposing the constraint of color charge neutrality. The main effect of this constraint is a coexistence of the chiral symmetry breaking ({chi}SB) and two-flavor superconducting phases. Additional effects are a shrinking of the {chi}SB domain in the T-{mu} plane and a shift of the end point to lower temperatures, but their quantitative importance is shadowed by the intrinsic uncertainties of the model. The effects can be understood in view of the presence of a nonvanishing color chemical potential {mu}{sub 8}, which is introduced to compensate the color charge density {rho}{sub 8} induced by a background color gauge mean field {phi}{sub 3}. At low temperatures and large chemical potentials the model exhibits a quarkyonic phase, which gets additional support from the diquark condensation.
Dumm, D. Gomez [IFLP, CONICET - Departmento de Fisica, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina); CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Blaschke, D. B. [Institute for Theoretical Physics, University of Wroclaw, Max Born Place 9, 50204 Wroclaw (Poland); Bogoliubov Laboratory of Theoretical Physics, JINR Dubna, Joliot-Curie Street 6, 141980 Dubna (Russian Federation); Grunfeld, A. G. [CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Physics Department, Comision Nacional de Energia Atomica, Avenida Libertador 8250, 1429 Buenos Aires (Argentina); Scoccola, N. N. [CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Physics Department, Comision Nacional de Energia Atomica, Avenida Libertador 8250, 1429 Buenos Aires (Argentina); Universidad Favaloro, Solis 453, 1078 Buenos Aires (Argentina)
DeFrees Large Wave Basin | Open Energy Information
Large Wave Basin Large Wave Basin Jump to: navigation, search Basic Specifications Facility Name DeFrees Large Wave Basin Overseeing Organization Cornell University Hydrodynamics Hydrodynamic Testing Facility Type Wave Basin Length(m) 32.0 Beam(m) 0.6 Depth(m) 0.9 Water Type Freshwater Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.5 Maximum Wave Height(m) at Wave Period(s) 3.0 Maximum Wave Length(m) 64 Wave Period Range(s) 3.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking Yes Wavemaking Description Computer controlled 4m hydraulic wave paddle stroke allows a series of solitary waves to be generated; arbitrary wave shape possible Wave Direction Uni-Directional Simulated Beach Yes
Global Ocean Surface Wave Simulation Using a Coupled Atmosphere�Wave Model
This study describes a 29-yr (1981�2009) global ocean surface gravity wave simulation generated by a coupled atmosphere�wave model using NOAA/GFDL�s High-Resolution Atmosphere Model (HiRAM) and the WAVEWATCH III surface wave model developed and ...
Yalin Fan; Shian-Jiann Lin; Isaac M. Held; Zhitao Yu; Hendrik L. Tolman
Hollow Core Fiber Optics for Mid-Wave and Long-Wave Infrared Spectroscopy
Hollow Core Fiber Optics for Mid-Wave and Long-Wave Infrared Spectroscopy Jason M. Kriesel and testing of hollow core glass waveguides (i.e., fiber optics) for use in Mid-Wave Infrared (MWIR) and Long related applications, and fiber optics are a key enabling technology needed to improve the utility
Wave Transformation and Wave-Driven Flow across a Steep Coral Reef
Observations of waves, setup, and wave-driven mean flows were made on a steep coral forereef and its associated lagoonal system on the north shore of Moorea, French Polynesia. Despite the steep and complex geometry of the forereef, and wave ...
Stephen G. Monismith; Liv M. M. Herdman; Soeren Ahmerkamp; James L. Hench
Equatorward Propagation of Inertia�Gravity Waves due to Steady and Intermittent Wave Sources
A simple ray-tracing model for the equatorward propagation of inertia�gravity waves in the lower stratosphere is investigated. The model is based on a zonally symmetric wave source and incorporates radiative wave damping. It is shown that steady ...
Oliver B�hler
Wave polarizations for a beam-like gravitational wave in quadratic curvature gravity
We compute analytically the tidal field and polarizations of an exact gravitational wave generated by a cylindrical beam of null matter of finite width and length in quadratic curvature gravity. We propose that this wave can represent the gravitational wave that keep up with the high energy photons produced in a gamma ray burst (GRB) source.
E. C. de Rey Neto; J. C. N. de Araujo; O. D. Aguiar
Wave climate and trends for the Gulf of Mexico: A 30 year wave hindcast
This paper describes wave climate and variability in the Gulf of Mexico based on a 30-years wave hindcast. The North American Regional Reanalysis wind fields (NCEP at NOAA) are employed to drive a third generation spectral wave model with high- ...
Christian M. Appendini; Alec Torres-Freyermuth; Paulo Salles; Jose L�pez-Gonz�lez; E. Tonatiuh Mendoza
Computer image analysis of seed shape and seed color for flax cultivar description
We applied computer image analysis to group together flax cultivars (Linum usitatissimum L.) according to their similarity in commercially important dry seed traits. Both the seed shape and seed-color traits were tested on 53 cultivars from world germplasm ... Keywords: Agro-biodiversity preservation, Computer image analysis, Flax cultivar clustering, Flax seed descriptors, Hierarchical clustering, Multivariate analysis, Principal component analysis, Seed color, Seed shape
Wiesnerov� Dana; Wiesner Ivo
Solar DEM Models : A solar image in color band b, mn pixels,
Solar DEM Models : A solar image in color band b, m�?n pixels, containing a particular solar feature, for t = 1, 2, . . . , T. btM sianFieldRandomGaus I M I I bbb T t bbtt bbb bb 2 1 2 )( #12;Solar DEM.bI : the measure error of the ith row and jth column pixel of the certain image in color band b. ijbe #12;Solar DEM
Wolfe, Patrick J.
Wave Power Demonstration Project at Reedsport, Oregon
Ocean wave power can be a significant source of large?scale, renewable energy for the US electrical grid. The Electrical Power Research Institute (EPRI) conservatively estimated that 20% of all US electricity could be generated by wave energy. Ocean Power Technologies, Inc. (OPT), with funding from private sources and the US Navy, developed the PowerBuoy? to generate renewable energy from the readily available power in ocean waves. OPT's PowerBuoy converts the energy in ocean waves to electricity using the rise and fall of waves to move the buoy up and down (mechanical stroking) which drives an electric generator. This electricity is then conditioned and transmitted ashore as high?voltage power via underwater cable. OPT's wave power generation system includes sophisticated techniques to automatically tune the system for efficient conversion of random wave energy into low cost green electricity, for disconnecting the system in large waves for hardware safety and protection, and for automatically restoring operation when wave conditions normalize. As the first utility scale wave power project in the US, the Wave Power Demonstration Project at Reedsport, OR, will consist of 10 PowerBuoys located 2.5 miles off the coast. This U.S. Department of Energy Grant funding along with funding from PNGC Power, an Oregon?based electric power cooperative, was utilized for the design completion, fabrication, assembly and factory testing of the first PowerBuoy for the Reedsport project. At this time, the design and fabrication of this first PowerBuoy and factory testing of the power take?off subsystem are complete; additionally the power take?off subsystem has been successfully integrated into the spar.
Mekhiche, Mike [Principal Investigator] [Principal Investigator; Downie, Bruce [Project Manager] [Project Manager
Modeling and Simulation of a JBIG2 Compliant Color Printer Pipeline
We develop a computer aided design (CAD) tool for the simulation and testing of a color image printing pipeline. True color images typically have three color planes (red, green and blue) with eight bits of resolution per pixel per image plane. Printing these images involves a binarization process called halftoning which converts each color plane into a binary image for rendering on binary devices such as printers. While the halftoning algorithm is the heart of the printer pipeline, several preprocessing methods are often required to perform basic image manipulations. These include printer dependent color transformations, image scaling/resizing, and image compression. Thus images at various stages in the printer pipeline are subjected to various types of distortions. Simulation of the printer pipeline is of key importance for end-to-end performance optimization. We model the printer pipeline using the synchronous data ow (SDF) model of computation in the Ptolemy design environment. We simulate typical tradeo s in a color printer pipeline using JBIG2 compliant image compression. We also provide an interactive high level interface to key pipeline parameters via MATLAB and/or the Ptolemy graphical user interface (GUI).
Niranjan Damera-Venkata; Chase Krumpelman
Coupled Parabolic Equations for Wave Propagation
Coupled Parabolic Equations for Wave Propagation Kai Huang, Knut Solna and Hongkai Zhao #3; April 30, 2004 Abstract We develop an algorithm using two coupled parabolic equations for numerical simulation of wave propagation over long distances. The coupled parabolic equations are derived from a two
Zhao, Hongkai
Gravimagnetic shock waves in the anisotropic plasma
The relativistic magnetohydrodynamic equations for the anisotropic magnetoactive plasma are obtained and accurately integrated in the plane gravitational wave metrics. The dependence of the induction mechanism of the gravimagnetic shock waves on the degree of the magnetoactive plasma anisotropy is analyzed.
Yu. G. Ignatyev; D. N. Gorokhov
Atmospheric Gravity Waves and Aircraft Turbulence Encounters
We describe aircraft turbulence-atmospheric gravity wave events which occurred during a 2-day period over the Continental Divide. The waves are observed by two microbarograph networks an each side of the divide and last for several hours at a ...
A. J. Bedard Jr.; F. Canavero; F. Einaudi
Wind Effects on Shoaling Wave Shape
Near the shore, cross-shore winds strongly affect the location of the break point and the breaking-wave height. From casual observation from the beach, wind direction (onshore or offshore) and speed also appear to affect wave shape (i.e., ...
Falk Feddersen; Fabrice Veron
Microcomputer Numerical Ocean Surface Wave Model
A numerical wean surface wave model has been developed specifically to operate on desktop super micro-computers. The model uses one or more local and moving grids within which waves of importance at a location of interest are generated. Within ...
Marshall D. Earle
Retail beamed power using millimeter waves: Survey
Retail delivery of electric power through millimeter waves is relevant in developing areas where the market for communication devices outpaces the power grid infrastructure. It is also a critical component of an evolutionary path towards terrestrial ... Keywords: Micro renewable energy systems, millimeter wave, power beaming, rural India power, space power grid, systems
Narayanan Komerath; Aravinda Kar
Nonlinear inertial Alfven wave in dusty plasmas
Solitary inertial Alfven wave in the presence of positively and negatively charged dust particles is studied. It is found that electron density dips are formed in the super Alfvenic region and wave amplitude is increased for the case of negatively charged dust particles in comparison with positively charged dust particles in electron-ion plasmas.
Mahmood, S. [Theoretical Plasma Physics Division, P.O. Nilore Islamabad 44000 (Pakistan); National Center for Physics, Shadra Valley, Quaid-i-Azam University Islamabad 44000 (Pakistan); Saleem, H. [National Center for Physics, Shadra Valley, Quaid-i-Azam University Islamabad 44000 (Pakistan)
Sierra Wave Project Revisited: 50 Years Later
The Sierra Wave Project was the first post�World War II (WWII) mountain meteorology field experiment in the United States designed to study mountain lee-wave phenomena. In its concept, design, organization, and execution, this Air Force�funded ...
Vanda Grubi�i?; John M. Lewis
Gravity Waves, Dynamical Resistance, and Forcing Efficiency
The effect of the dynamical response associated with high-frequency gravity waves on the total energy generated by imposed heating is examined in a 2D linear compressible model. The work performed by waves against a sustained forcing is defined ...
Jeffrey M. Chagnon
Multiple Gravity-Wave Breaking Levels
It is noted that gravity waves for which |u�?c| (u�=mean flow speed, c=wave phase speed) has a sharp minimum in the upper troposphere or lower stratosphere will have decaying amplitudes above this level despite exponentially decreasing mean ...
Richard S. Lindzen
Principle Power Inc. and National Renewable Energy Lab (NREL) have completed a contract to assess the technical and economic feasibility of integrating wave energy converters into the WindFloat, resulting in a new concept called the WindWaveFloat (WWF). The concentration of several devices on one platform could offer a potential for both economic and operational advantages. Wind and wave energy converters can share the electrical cable and power transfer equipment to transport the electricity to shore. Access to multiple generation devices could be simplified, resulting in cost saving at the operational level. Overall capital costs may also be reduced, provided that the design of the foundation can be adapted to multiple devices with minimum modifications. Finally, the WindWaveFloat confers the ability to increase energy production from individual floating support structures, potentially leading to a reduction in levelized energy costs, an increase in the overall capacity factor, and greater stability of the electrical power delivered to the grid. The research conducted under this grant investigated the integration of several wave energy device types into the WindFloat platform. Several of the resulting system designs demonstrated technical feasibility, but the size and design constraints of the wave energy converters (technical and economic) make the WindWaveFloat concept economically unfeasible at this time. Not enough additional generation could be produced to make the additional expense associated with wave energy conversion integration into the WindFloat worthwhile.
Gravity waves from vortex dipoles and jets
The dissertation first investigates gravity wave generation and propagation from jets within idealized vortex dipoles using a nonhydrostatic mesoscale model. Several initially balanced and localized jets induced by vortex dipoles are examined here. Within these dipoles, inertia-gravity waves with intrinsic frequencies 1-2 times the Coriolis parameter are simulated in the jet exit region. The ray tracing analysis reveals strong variation of wave characteristics along ray paths. The dependence of wave amplitude on the Rossby number is examined through experiments in which the two vortices are initially separated by a large distance but subsequently approach each other and form a vortex dipole with an associated amplifying localized jet. The amplitude of stationary gravity waves in the simulations with a 90-km grid spacing increases nearly linearly with the square of the Rossby number but significantly more rapidly when smaller grid spacing is used. To further address the source mechanism of the gravity waves within the vortex dipole, a linear numerical framework is developed based on the framework proposed by Plougonven and Zhang (2007). Using the nonlinearly balanced fields as the basic state and driven by three types of large scale forcing, the vorticity, divergence and thermodynamic forcing, this linear model is utilized to obtain linear wave responses. The wave packets in the linear responses compare reasonably well with the MM5 simulated gravity waves. It is suggested that the vorticity forcing is the leading contribution to both gravity waves in the jet exit region and the ascent/descent feature in the jet core. This linear model is also adopted to study inertia-gravity waves in the vicinity of a baroclinic jet during the life cycle of an idealized baroclinic wave. It is found that the thermodynamic forcing and the vorticity forcing are equally important to the gravity waves in the low stratosphere, but the divergence forcing is again playing a lesser role. Two groups of wave packets are present in the linear responses; their sources appear to locate either near the surface front or near the middle/upper tropospheric jet.
Wang, Shuguang
Renormalized Resonance Quartets in Dispersive Wave Turbulence
Using the (1+1)D Majda-McLaughlin-Tabak model as an example, we present an extension of the wave turbulence (WT) theory to systems with strong nonlinearities. We demonstrate that nonlinear wave interactions renormalize the dynamics, leading to (i) a possible destruction of scaling structures in the bare wave systems and a drastic deformation of the resonant manifold even at weak nonlinearities, and (ii) creation of nonlinear resonance quartets in wave systems for which there would be no resonances as predicted by the linear dispersion relation. Finally, we derive an effective WT kinetic equation and show that our prediction of the renormalized Rayleigh-Jeans distribution is in excellent agreement with the simulation of the full wave system in equilibrium.
Lee, Wonjung [Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, New York 10012 (United States); Kovacic, Gregor [Mathematical Sciences Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180 (United States); Cai, David [Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, New York 10012 (United States); Mathematics Department, Shanghai Jiao Tong University, Shanghai 200240 (China)
Long-Wave Infrared | Open Energy Information
Long-Wave Infrared Long-Wave Infrared Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Long-Wave Infrared Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Map characteristic minerals associated with hot springs/mineral deposits Stratigraphic/Structural: Hydrological: Thermal: Map surface temperatures Dictionary.png Long-Wave Infrared: Long Wave Infrared (LWIR) refers to multi- and hyperspectral data collected in the 8 to 15 µm wavelength range. LWIR surveys are sometimes referred to as "thermal imaging" and can be used to identify relatively warm features
MHK Technologies/New Knowledge Wind and Wave Renewable Mobile Wind and Wave
Wind and Wave Renewable Mobile Wind and Wave Wind and Wave Renewable Mobile Wind and Wave Power Plant Platform < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage New Knowledge Wind and Wave Renewable Mobile Wind and Wave Power Plant Platform.jpg Technology Profile Primary Organization Darrel Dammen Technology Resource Click here Wave Technology Description Buoyant vessel attached to a lever the lever being attached to a stationary source like near shore Oil Rigs docks or a vessel less affected by swells and waves like large ships floating Oil rigs or boats the levers going up and down creates a torque at the pivot point by the vessel being raised and lowered this works on all size levers making it possible to collect energy from all size Waves with enough levers with in reasonable size and numbers the force can be used hydraulically mechanically or to compress air to power generators Ten tons going up and down is a lot of force when connected to a 100 so connecting to 100 tons then to 50 tons then to 25 tons then to 10 tons to 5 tons to 2 tons continuing down in size and multiplying the levers from the less affected floating object or stationary object will mean We collect energy from 1 foot to 100 foot waves and swells This Wind and Wave with 120 oarsmen showing buoyant vessels are the oarsman in this picture with hund
Factors Affecting the Accuracy of SHOWEX HF Radar Wave Measurements
Ocean Surface Current Radar (OSCR) HF radar measurements of ocean waves and currents were made during the Shoaling Waves Experiment (SHOWEX) in the fall of 1999. During some periods, at some locations, good quality wave measurements were ...
Lucy R. Wyatt; Guennadi Liakhovetski; Hans C. Graber; Brian K. Haus
Riding the Crest: A Tale of Two Wave Experiments
This paper gives a general overview of two ocean wave experiments. The experimental goals of the Surface Wave Processes Program (SWAPP) and of the Surface Wave Dynamics Experiment (SWADE) are quite different but complementary. In general terms, ...
R. A. Weller; M. A. Donelan; M. G. Briscoe; N. E. Huang
The Evolution of Inhomogeneous Wave Statistics through a Variable Medium
The interaction of ocean waves with variable currents and topography in coastal areas can result in inhomogeneous statistics because of coherent interferences, which affect wave-driven circulation and transport processes. Stochastic wave models, ...
P. B. Smit; T. T. Janssen
Simulation of Wave Breaking in One-Dimensional Spectral Environment
Results of numerical investigations, based on full dynamic equations, are presented for wave breaking in a one-dimensional environment with a wave spectrum. The breaking is defined as a process of irreversible collapse of an individual wave in ...
Dmitry Chalikov; Alexander V. Babanin
Simulations of Dissipative, Shore-Oblique Infragravity Waves
A model of forced, dissipative shore-oblique shallow water waves predicts net cross-shore infragravity wave propagation, in qualitative agreement with field observations. Forcing applied near the shore generates edge waves, whose energy is mostly ...
Stephen M. Henderson; A. J. Bowen
Observations of Steep Wave Statistics in Open Ocean Waters
A new wavelet analysis methodology is proposed to estimate the statistics of steep waves. The method is applied to open ocean wave height data from the Southern Ocean Waves Experiment (1992) and from a field experiment conducted at Duck, North ...
Nicholas Scott; Tetsu Hara; Edward J. Walsh; Paul A. Hwang
The Penetration of Mountain Waves into the Middle Atmosphere
A linear nonhydrostatic model of gravity waves forced by a bell-shaped ridge is used to investigate the penetration of mountain waves into the stratosphere and mesosphere during winter and fall. Gravity waves with horizontal scales less than 30 ...
Kinetic Energy Transfer between Internal Gravity Waves and Turbulence
We describe a reliable method for distinguishing the mean, wave and turbulence fields when internal waves with changing amplitude perturb the turbulent boundary layer. By integrating the component wave and turbulence kinetic energy budgets ...
J. J. Finnigan
Energy Dissipation of Unsteady Wave Breaking on Currents
Energy dissipation for unsteady deep-water breaking in wave groups on following and opposing currents, including partial wave-blocking conditions, was investigated by detailed laboratory measurements. A range of focusing wave conditions, ...
Aifeng Yao; Chin H. Wu
A Global Climatology of Wind�Wave Interaction
Generally, ocean waves are thought to act as a drag on the surface wind so that momentum is transferred downward, from the atmosphere into the waves. Recent observations have suggested that when long wavelength waves�which are characteristic of ...
Kirsty E. Hanley; Stephen E. Belcher; Peter P. Sullivan
Gravity Wave Generation by a Three-Dimensional Thermal Forcing
Thermal forcing is one of the mechanisms of wave generation in convection. Although it does not account for all the wave generation mechanisms, thermal forcing is a good proxy for estimating the gravity wave spectrum forced by convection. This ...
Jadwiga H. Beres