National Library of Energy BETA

Sample records for failed color rendering

  1. An Investigation into the Perception of Color under LED White Composite Spectra with Modulated Color Rendering

    E-Print Network [OSTI]

    O'Reilly, Una-May

    emitting diodes, LEDs. We examined seven LED white composite spectra with different color rendering of a pilot study that evaluates the perceptual impact of modulation of color rendering using multi-chip light

  2. Energy-Efficient, High-Color-Rendering LED Lamps Using Oxyfluoride and Fluoride Phosphors

    SciTech Connect (OSTI)

    Setlur, A.; Radkov, E; Henderson, C; Her, J; Srivastava, A; Karkada, N; Kishore, M; Kumar, N; Aesram, D; et al.

    2010-01-01

    LED lamps using phosphor downconversion can be designed to replace incandescent or halogen sources with a 'warm-white' correlated color temperature (CCT) of 2700-3200 K and a color rendering index (CRI) greater than 90. However, these lamps have efficacies of {approx}70% of standard 'cool-white' LED packages (CCT = 4500-6000 K; CRI = 75-80). In this report, we describe structural and luminescence properties of fluoride and oxyfluoride phosphors, specifically a (Sr,Ca){sub 3}(Al,Si)O{sub 4}(F,O):Ce{sup 3+} yellow-green phosphor and a K{sub 2}TiF{sub 6}:Mn{sup 4+} red phosphor, that can reduce this gap and therefore meet the spectral and efficiency requirements for high-efficacy LED lighting. LED lamps with a warm-white color temperature (3088 K), high CRI (90), and an efficacy of {approx}82 lm/W are demonstrated using these phosphors. This efficacy is {approx}85% of comparable cool-white lamps using typical Y{sub 3}Al{sub 5}O{sub 12}:Ce{sup 3+}-based phosphors, significantly reducing the efficacy gap between warm-white and cool-white LED lamps that use phosphor downconversion.

  3. Psychophysical evaluations of modulated color rendering for energy performance of LED-based architectural lighting

    E-Print Network [OSTI]

    Thompson, Maria do Rosário

    2007-01-01

    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, ...

  4. High color rendering index white light emitting diodes fabricated from a combination of carbon dots and zinc copper indium sulfide quantum dots

    SciTech Connect (OSTI)

    Sun, Chun; Liu, Wenyan; Zhang, Xiaoyu; Zhang, Yu E-mail: wyu6000@gmail.com; Wang, Yu; Kalytchuk, Sergii; Kershaw, Stephen V.; Rogach, Andrey L.; Zhang, Tieqiang; Zhao, Jun; Yu, William W. E-mail: wyu6000@gmail.com

    2014-06-30

    In a line with most recent trends in developing non-toxic fluorescent nanomaterials, we combined blue emissive carbon dots with green and red emissive zinc copper indium sulfide (ZCIS) core/shell quantum dots (QDs) to achieve white light-emitting diodes (WLEDs) with a high color rendering index of 93. This indicates that ZCIS QDs, with their broad emission bands, can be employed to effectively make up the emission of carbon dots in the yellow and red regions to produce WLEDs in the wide region of color temperature by tuning the volume ratio of these constituting luminophores. Their electroluminescence characteristics including color rendering index, Commission Internationale de l'Eclairage (CIE) color coordinates, and color temperatures were evaluated as a function of forward current. The CIE-1931 chromaticity coordinates of the as-prepared WLEDs, exhibiting good stability, were slightly shifted from (0.321, 0.312) at 10?mA to (0.351, 0.322) at 30?mA, which was mainly caused by the different thermal quenching coefficients of carbon dots and ZCIS QDs.

  5. Bicolor Mn-doped CuInS{sub 2}/ZnS core/shell nanocrystals for white light-emitting diode with high color rendering index

    SciTech Connect (OSTI)

    Huang, Bo; Dai, Qian; Zhang, Huichao; Liao, Chen; Cui, Yiping; Zhang, Jiayu, E-mail: jyzhang@seu.edu.cn [Advanced Photonic Center, Southeast University, Nanjing 210096 (China); Zhuo, Ningze; Jiang, Qingsong; Shi, Fenghua; Wang, Haibo [Research Institute of Electric Light Source Materials, Nanjing University of Technology, Nanjing 210015 (China)

    2014-09-07

    We synthesized bicolor Mn-doped CuInS{sub 2} (CIS)/ZnS core/shell nanocrystals (NCs), in which Mn{sup 2+} ions and the CIS core were separated with a ZnS layer, and both Mn{sup 2+} ions and CIS cores could emit simultaneously. Transmission electron microscopy and powder X-ray diffraction measurements indicated the epitaxial growth of ZnS shell on the CuInS{sub 2} core, and electron paramagnetic resonance spectrum indicated that Mn{sup 2+} ions were on the lattice points of ZnS shell. By integrating these bicolor NCs with commercial InGaN-based blue-emitting diodes, tricolor white light-emitting diodes with color rendering index of 83 were obtained.

  6. Sandia Energy - Four-color laser white illuminant demonstrating...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    laser white illuminant demonstrating high color-rendering quality Home Solid-State Lighting News Four-color laser white illuminant demonstrating high color-rendering quality...

  7. Interservice/Industry Training, Simulation, and Education Conference (I/ITSEC) 2004 Real-time color blending of rendered and captured video

    E-Print Network [OSTI]

    Reinhard, Erik

    School of Computer Science University of Central Florida Orlando FL reinhard@cs.ucf.edu Matthew O the Middle East Technical University in Ankara, Turkey. His current interests are in computer graphics, color and the Anaheim Angels. Matthew O'Connor is the Programming Team Leader for the Media Convergence Laboratory

  8. Bright three-band white light generated from CdSe/ZnSe quantum dot-assisted Sr{sub 3}SiO{sub 5}:Ce{sup 3+},Li{sup +}-based white light-emitting diode with high color rendering index

    SciTech Connect (OSTI)

    Jang, Ho Seong; Kwon, Byoung-Hwa; Jeon, Duk Young [Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of); Yang, Heesun [Department of Materials Science and Engineering, Hongik University, 72-1, Sangsu-dong, Mapo-gu, Seoul 121-791 (Korea, Republic of)

    2009-10-19

    In this study, bright three-band white light was generated from the CdSe/ZnSe quantum dot (QD)-assisted Sr{sub 3}SiO{sub 5}:Ce{sup 3+},Li{sup +}-based white light-emitting diode (WLED). The CdSe/ZnSe core/shell structure was confirmed by energy dispersive x-ray spectroscopy and x-ray photoelectron spectroscopy. The CdSe/ZnSe QDs showed high quantum efficiency (79%) and contributed to the high luminous efficiency ({eta}{sub L}) of the fabricated WLED. The WLED showed bright natural white with excellent color rendering property ({eta}{sub L}=26.8 lm/W, color temperature=6140 K, and color rendering index=85) and high stability against the increase in forward bias currents from 20 to 70 mA.

  9. Interactive crayon rendering for animation 

    E-Print Network [OSTI]

    Halstead, Howard John IV

    2006-04-12

    graphics community: non-photorealistic ren- dering. But what exactly is non-photorealistic rendering (NPR)? Confusion arises due to the fact that NPR is defined in terms of what it is not: photorealistic rendering. The goal of non-photorealistic rendering...-photorealistic rendering in terms of the images it pro- duces. Research in non-photorealism has produced images that emulate watercolor, oil paints, pen-and-ink illustrations, pencil renderings, technical illustration, and cel animation among others. Many NPR systems...

  10. Non-photorealistic Rendering of Images as Evolutionary Stained Glass

    E-Print Network [OSTI]

    Ashlock, Dan

    Non-photorealistic Rendering of Images as Evolutionary Stained Glass Daniel Ashlock Mathematics glass. A collection of points that are the centers of weighted Voronoi tilings are evolved to minimize. A fractal model of stained glass is then run to create a stained glass texture with a similar average color

  11. Light and Color in Nature -Scattering Effects -

    E-Print Network [OSTI]

    Assarsson, Ulf

    1 Seminar WS 2003/04 Light and Color in Nature - Scattering Effects - Marcus Magnor WS03/04: Light and Color in Nature ­ Scattering Overview · Last Lecture ­ Interference · Today ­ Light scattering: water rendering #12;2 WS03/04: Light and Color in Nature ­ Scattering List of Topics · Rainbow ­ Stephan

  12. Why Cogeneration Development Projects Fail 

    E-Print Network [OSTI]

    Greenwood, R. W.

    1987-01-01

    ENERATION DEVElDHmNT PROJECTS FAIL RALPH w. GRBBtMX>D Regional Manager Bbasco Services Incorporated Houston, Texas ABSTRACT Cogeneration projects that are organized by developers fail to reach fruition for reasons other than the basic economical... here to discuss those additional problems unique to small projects. A developnent project is defined as one where a third party, the developer, provides preliminary econanic options, licensing, business structure, financing, detailed engineering...

  13. Sphere Light Field Rendering Zigang Wang1

    E-Print Network [OSTI]

    Sphere Light Field Rendering Zigang Wang1 and Zhengrong Liang1,2 Departments of Radiology1 and Computer Science2 , State University of New York, Stony Brook, NY 11794, USA ABSTRACT Light field algorithm is one of the most famous image-based rendering techniques. In this paper, an improved light field

  14. Render me Real? Investigating the Effect of Render Style on the Perception of Animated Virtual Humans

    E-Print Network [OSTI]

    Render me Real? Investigating the Effect of Render Style on the Perception of Animated Virtual of lifelike virtual humans has been the goal of many movie makers in the last decade. Recently, films of psychophysical experiments to determine whether render style affects how virtual humans are perceived. Motion

  15. Color realism and color science

    E-Print Network [OSTI]

    Byrne, Alex

    The target article is an attempt to make some progress on the problem of color realism. Are objects colored? And what is the nature of the color properties? We defend the view that physical objects (for instance, tomatoes, ...

  16. A shader based approach to painterly rendering 

    E-Print Network [OSTI]

    Pal, Kaushik

    2004-11-15

    The purpose of this thesis is to develop a texture-based painterly shader that would render computer generated objects or scenes with strokes that are visually similar to paint media like watercolor, oil paint or dry media such as crayons, chalk, et...

  17. Eurographics Symposium on Rendering 2012 Paris, France

    E-Print Network [OSTI]

    Gutierrez, Diego

    -Chairs Fredo Durand (Massachusetts Institute of Technology) Diego Gutierrez (Universidad de Zaragoza) Local-LTCI) #12;Eurographics Symposium on Rendering 2012 Fredo Durand and Diego Gutierrez (Guest Editors) Volume Gutierrez (Guest Editors) Volume 31 (2012), Number 4 Preface The program for EGSR 2012 follows a long

  18. Introductory Seminar C++ & RenderChimp

    E-Print Network [OSTI]

    -house scene graph and rendering tool #12;Hello C++ #include ! ! int main()! {! ! std::cout original edits original by copy by pointer by reference (Java-style) #12;C++ Types int !! ! ! ! a = -1;! ! ! ! ! ! (32 bit)! unsigned int !! b = 1;! ! ! ! ! ! (32 bit)! long !! ! ! c = -2;! ! ! ! ! ! (64 bit

  19. Application, Rendering and Display of Automotive Paint

    E-Print Network [OSTI]

    Meyer, Gary

    Application, Rendering and Display of Automotive Paint by Jonathan Konieczny Dr Gary W. MeyerPont Paints was kind enough to allow us to visit their own paint testing facility and track their spray painters using real spray guns. The data gathered from that visit was essential to creating the spray paint

  20. Modeling, Animation, and Rendering of Human Figures

    E-Print Network [OSTI]

    Güdükbay, Ugur

    7 Modeling, Animation, and Rendering of Human Figures Ugur G¨ud¨ukbay, B¨ulent ¨Ozg¨u¸c, Aydemir, Ankara, Turkey Human body modeling and animation has long been an important and challenging area virtual humans in action: video games, films, television, virtual reality, ergonomics, medicine

  1. 3-DOF HAPTIC RENDERING C. Basdogan*

    E-Print Network [OSTI]

    Basdogan, Cagatay

    , character animation, digital sculpting, virtual museums), computer-aided product design (free-form modeling to a virtual environment. On the left portion of the figure, mechanical interaction takes place between a human. Introduction Haptic rendering enables a user to touch, feel, and manipulate virtual objects through a haptic

  2. Where Tennessee Abstinence Education Fails to Protect

    E-Print Network [OSTI]

    Andrews, Kelley Rebecca

    2015-01-01

    Sex  education,  particularly  where  federal  funding  is  abstinence  only  sex  education  to   prohibit  the  Tennessee  Abstinence  Education  Fails  to  Protect   By  

  3. A critical comparison of human face rendering techniques

    E-Print Network [OSTI]

    Arizpe, Arturo Andrew

    2006-01-01

    Human skin exhibits complex light reflectance properties that make it difficult to render realistically. In recent years, many techniques have been introduced to render skin, with varying degrees of complexity and realism. ...

  4. Volume rendering of 3D scalar and vector fields at LLNL

    SciTech Connect (OSTI)

    Crawfis, R.; Max, N.; Becher, B.; Cabral, B.

    1993-12-31

    Simulation of complex 3-dimensional phenomena generate data sets which are hard to comprehend using conventional 2-dimensionally oriented visualization tools. One way to overcome this limitation is to employ various volume visualization techniques. While early volume visualization techniques worked well on simple scalar volumes they failed to exploit frame buffer hardware capabilities and handle higher order data such as vector fields. Work at Lawrence Livermore National Laboratory has centered on developing new techniques and extending existing techniques. This paper describes the various algorithms developed for volume rendering, and presents new methods of examining vector fields in a volumetric fashion.

  5. Resolution-independent surface rendering using programmable graphics hardware

    DOE Patents [OSTI]

    Loop, Charles T. (Bellevue, WA); Blinn, James Frederick (Bellevue, WA)

    2008-12-16

    Surfaces defined by a Bezier tetrahedron, and in particular quadric surfaces, are rendered on programmable graphics hardware. Pixels are rendered through triangular sides of the tetrahedra and locations on the shapes, as well as surface normals for lighting evaluations, are computed using pixel shader computations. Additionally, vertex shaders are used to aid interpolation over a small number of values as input to the pixel shaders. Through this, rendering of the surfaces is performed independently of viewing resolution, allowing for advanced level-of-detail management. By individually rendering tetrahedrally-defined surfaces which together form complex shapes, the complex shapes can be rendered in their entirety.

  6. Volume painting: incorporating volumetric rendering with line integral convolution (LIC) 

    E-Print Network [OSTI]

    Lee, Jaewook

    2005-11-01

    -1 VOLUME PAINTING: INCORPORATING VOLUMETRIC RENDERING WITH LINE INTEGRAL CONVOLUTION (LIC) A Thesis by JAEWOOK LEE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... Painting: Incorporating Volumetric Rendering with Line Integral Convolution (LIC). (August 2005) Jaewook Lee, B.F.A., Pusan National University Chair of Advisory Committee: Dr. Ergun Akleman This thesis presents an expressive (non-photorealistic) rendering...

  7. Color-tunable light emitting diodes based on quantum dot suspension

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Color-tunable light emitting diodes based on quantum dot suspension Zhenyue Luo, Haiwei Chen, Yifan March 2015 We propose a color-tunable light emitting diode (LED) consisting of a blue LED as the light, rendering and metamerism; (230.3670) Light-emitting diodes. http://dx.doi.org/10.1364/AO.54.002845 1

  8. Console Hacking 2010 PS3 Epic Fail

    E-Print Network [OSTI]

    Touretzky, David S.

    Console Hacking 2010 PS3 Epic Fail bushing, marcan, segher, sven 27th Chaos Communication Congress Hack Homebrew Channel Drivechips Bannerbomb Bannerbomb for 4.2 latest update broken Indiana Pwns t Wii Xbox 360 PS3 2006 2011 2010 2009 2008 2007 Mittwoch, 29. Dezember 2010 #12;Twiizer Attack Twilight Hack

  9. REAL TIME ACQUISITION AND RENDERING OF LARGE 3D MODELS

    E-Print Network [OSTI]

    Rusinkiewicz, Szymon

    OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Szymon Marek Rusinkiewicz August 2001 #12;ii c Copyright grid, and point (splat) rendering is used to provide a real-time display of the partial 3D model. Given, backface culling, level-of-detail control, and splat rendering. The system may also be extended

  10. Method of producing hydrogen, and rendering a contaminated biomass inert

    DOE Patents [OSTI]

    Bingham, Dennis N. (Idaho Falls, ID) [Idaho Falls, ID; Klingler, Kerry M. (Idaho Falls, ID) [Idaho Falls, ID; Wilding, Bruce M. (Idaho Falls, ID) [Idaho Falls, ID

    2010-02-23

    A method for rendering a contaminated biomass inert includes providing a first composition, providing a second composition, reacting the first and second compositions together to form an alkaline hydroxide, providing a contaminated biomass feedstock and reacting the alkaline hydroxide with the contaminated biomass feedstock to render the contaminated biomass feedstock inert and further producing hydrogen gas, and a byproduct that includes the first composition.

  11. Color superconductivity and dense quark matter

    E-Print Network [OSTI]

    Massimo Mannarelli

    2008-12-26

    The properties of cold and dense quark matter have been the subject of extensive investigation, especially in the last decade. Unfortunately, we still lack of a complete understanding of the properties of matter in these conditions. One possibility is that quark matter is in a color superconducting phase which is characterized by the formation of a diquark condensate. We review some of the basic concepts of color superconductivity and some of the aspects of this phase of matter which are relevant for compact stars. Since quarks have color, flavor as well as spin degrees of freedom many different color superconducting phases can be realized. At asymptotic densities QCD predicts that the color flavor locked phase is favored. At lower densities where the QCD coupling constant is large, perturbative methods cannot be applied and one has to rely on some effective model, eventually trying to constrain such a model with experimental observations. The picture is complicated by the requirement that matter in the interior of compact stars is in weak equilibrium and neutral. These conditions and the (possible) large value of the strange quark mass conspire to separate the Fermi momenta of quarks with different flavors, rendering homogenous superconducting phases unstable. One of the aims of this presentation is to introduce non-experts in the field to some of the basic ideas of color superconductivity and to some of its open problems.

  12. A photometric investigation of ultra-efficient LEDs with high color rendering index and high

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    and distribution temperature," J. Opt. Soc. Am. 58(11), 1528­1535 (1968). #119158 - $15.00 USD Received 27 Oct 2009 Sun2 and Hilmi Volkan Demir1,2* 1 Department of Electrical and Electronics Engineering, Department temperature of 3000 K are shown to be achieved using nanocrystal luminophores. ©2009 Optical Society

  13. Red-emitting silicon quantum dot phosphors in warm white LEDs with excellent color rendering

    E-Print Network [OSTI]

    Lin, Lih Y.

    , C. L. Curtis, G. M. Credo, M. J. Sailor, and K. L. Kavanagh, "Luminescent colloidal silicon nano/micro particle composite," Opt. Express 18(21), 21622­21627 (2010). 15. G. M. Credo, M. D. Mason

  14. Multi-camera: interactive rendering of abstract digital images 

    E-Print Network [OSTI]

    Smith, Jeffrey Statler

    2004-09-30

    The purpose of this thesis is the development of an interactive computer-generated rendering system that provides artists with the ability to create abstract paintings simply and intuitively. This system allows the user to distort a computer...

  15. Fast stereoscopic images with ray-traced volume rendering

    SciTech Connect (OSTI)

    Adelson, S.J.; Hansen, C.D.

    1994-05-01

    One of the drawbacks of standard volume rendering techniques is that is it often difficult to comprehend the three-dimensional structure of the volume from a single frame; this is especially true in cases where there is no solid surface. Generally, several frames must be generated and viewed sequentially, using motion parallax to relay depth. Another option is to generate a single spectroscopic pair, resulting in clear and unambiguous depth information in both static and moving images. Methods have been developed which take advantage of the coherence between the two halves of a stereo pair for polygon rendering and ray-tracing, generating the second half of the pair in significantly less time than that required to completely render a single image. This paper reports the results of implementing these techniques with parallel ray-traced volume rendering. In tests with different data types, the time savings is in the range of 70--80%.

  16. THE MATHEMATICS OF QUADRIC SURFACE RENDERING AND SOI

    E-Print Network [OSTI]

    Treuille, Adrien

    of SOID, and those who have modified it over the years: Thad Beier, Mike e m Chou, and Paul HeckbertTHE MATHEMATICS OF D QUADRIC SURFACE RENDERING AND SOI Paul S. Heckbert p Three Dimensional

  17. Wavelets in Real-time Rendering Weifeng Sun

    E-Print Network [OSTI]

    Mukherjee, Amar

    Wavelets in Real-time Rendering by Weifeng Sun B.S. University of Petroleum, China, 1997 M by Weifeng Sun All rights reserved ii #12;ABSTRACT Interactively simulating visual appearance of natural

  18. Rendering falling snow using an inverse Fourier transform Michael S. Langer

    E-Print Network [OSTI]

    Langer, Michael

    Rendering falling snow using an inverse Fourier transform Michael S. Langer School of Computer snow, non-photorealistic rendering Methods for rendering falling snow typically use particle sys- tems we present an alter- native method for rendering falling snow which does not use parti- cles

  19. Eurographics Symposium on Rendering 2008 Steve Marschner and Michael Wimmer

    E-Print Network [OSTI]

    Pellacini, Fabio

    27 (2008), Number 4 iCheat: A Representation for Artistic Control of Indirect Cinematic Lighting in rendering efficiency, indirect illumination has recently begun to be integrated in cinematic lighting design storytelling, enhances mood and di- rects viewer attention [Alt95]. For this very reason, the goal of cinematic

  20. Multiresolution Maximum Intensity Volume Rendering by Morphological Pyramids

    E-Print Network [OSTI]

    Roerdink, Jos B.T.M.

    to wavelet splatting, the main differences being that (i) linear summation of voxel values is replaced by maximum computation, and (ii) linear wavelet filters are replaced by (nonlinear) morphological filters. 1 on wavelets [4, 12, 18]. Recent methods for X-ray rendering include wavelet splatting [7, 8], which extends

  1. Web 3D Rendering Without Plug-Ins Andrs Buritic

    E-Print Network [OSTI]

    Dahlquist, Kam D.

    OpenJSGL Web 3D Rendering Without Plug-Ins Andrés Buriticá Loyola Marymount University Faculty, 2007 Introduction 3D graphics Applications The Worldwide Web #12;Concept OpenGL JavaScript OpenJSGL Previous Work: 3D In A Browser Java applets Flash JavaScript VRML, later called X3D Java Web Start Other

  2. ABSTRACT RENDERINGS OF DIFFERENT TIMES AND DAYS ADVANCED FENESTRATION BTDF

    E-Print Network [OSTI]

    throughout each day for different months of the year. Having accurate quantitative and qualitative data about on a standard PC. Using the standard CIE Sky Model [5], the system can render qualitatively accurate images-directional Videogoniophotometer for Advanced Fenestration Systems. PhD thesis, Swiss Federal Institute of Technology (EPFL), 2004

  3. Perceptually Driven Interactive Rendering David Luebke and Benjamin Hallen

    E-Print Network [OSTI]

    Huang, Wei

    look like the original? In this paper, we describe a framework for LOD management guided directly techniques that regulate resolution--and hence rendering load--using a hierarchy of local simplification, and industrial design. Despite tremendous strides in computer graphics hardware, the growth of large-scale models

  4. Screen-Space Perceptual Rendering of Human Skin JORGE JIMENEZ

    E-Print Network [OSTI]

    Gutierrez, Diego

    SUNDSTEDT Trinity College Dublin and DIEGO GUTIERREZ Universidad de Zaragoza We propose a novel skin shader., Sundstedt, V., and Gutierrez, D. 2009. Screen-Space perceptual rendering of human skin. ACM Trans. Appl.Sundstedt@cs.tcd.ie; D. Gutierrez, Departamento de Inform´atica e Ingenier´ia de Sistemas, Universidad de Zaragoza

  5. Efficient Resampling, Compression and Rendering of Metallic and Pearlescent Paint

    E-Print Network [OSTI]

    Behnke, Sven

    Efficient Resampling, Compression and Rendering of Metallic and Pearlescent Paint Martin Rump, Ralf}@cs.uni-bonn.de Abstract An interesting class of materials are metallic and pearlescent paints. They pose serious and pearlescent paint by compressing measured data. But until now the compression of the image based part is done

  6. Depth-fighting Aware Methods for Multi-fragment Rendering

    E-Print Network [OSTI]

    Fudos, Ioannis

    of self crossing surfaces, and wireframe ren- dering in conjunction with transparency and translu- cency and overlap, (iii) non-convergent surfaces due to the fixed-point round-off errors of perspective projection-sensitive applications (see Figure 2), from non-photorealistic rendering (e.g. or- der independent transparency [3

  7. Color and form

    E-Print Network [OSTI]

    Buchanan, Mark C. (Mark Calvin)

    1992-01-01

    I have always been interested in painting, particularly in the use of color to describe space, time and emotion. This thesis integrates painterly concepts in the making of architecture. Some issues explored include color ...

  8. This paper evaluates and compares four volume rendering algorithms that have become rather popular for rendering datasets

    E-Print Network [OSTI]

    Bartz, Dirk

    popular for rendering datasets described on uniform rectilinear grids: raycasting, splatting, shear, and (ii) that with the infinitely thin surface the polygon mesh models the true object structures cloud-like phenomena, (ii) smoothly varying flow fields, or (iii) structures of varying depth (and

  9. Splatting is a popular direct volume rendering algorithm. However, the algorithm does not correctly render cases where the volume

    E-Print Network [OSTI]

    Möller, Torsten

    ABSTRACT Splatting is a popular direct volume rendering algorithm. However, the algorithm does-casting algorithms, existing splatting algorithms do not have an equivalent mechanism for avoiding these artifacts. In this paper we propose such a mechanism, which delivers high-quality splatted images and has the potential

  10. Introduction to Color Superconductivity

    E-Print Network [OSTI]

    G. Nardulli

    2006-10-23

    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.

  11. Sort-First, Distributed Memory Parallel Visualization and Rendering

    SciTech Connect (OSTI)

    Bethel, E. Wes; Humphreys, Greg; Paul, Brian; Brederson, J. Dean

    2003-07-15

    While commodity computing and graphics hardware has increased in capacity and dropped in cost, it is still quite difficult to make effective use of such systems for general-purpose parallel visualization and graphics. We describe the results of a recent project that provides a software infrastructure suitable for general-purpose use by parallel visualization and graphics applications. Our work combines and extends two technologies: Chromium, a stream-oriented framework that implements the OpenGL programming interface; and OpenRM Scene Graph, a pipelined-parallel scene graph interface for graphics data management. Using this combination, we implement a sort-first, distributed memory, parallel volume rendering application. We describe the performance characteristics in terms of bandwidth requirements and highlight key algorithmic considerations needed to implement the sort-first system. We characterize system performance using a distributed memory parallel volume rendering application, a nd present performance gains realized by using scene specific knowledge to accelerate rendering through reduced network bandwidth. The contribution of this work is an exploration of general-purpose, sort-first architecture performance characteristics as applied to distributed memory, commodity hardware, along with a description of the algorithmic support needed to realize parallel, sort-first implementations.

  12. When Lyapunov exponents fail to exist William Ott

    E-Print Network [OSTI]

    Yorke, James

    When Lyapunov exponents fail to exist William Ott Courant Institute of Mathematical Sciences New such that Lyapunov exponents fail to exist at nearly every point in the phase space R2 despite the fact that the flow admits a unique natural measure. This example illustrates that the existence of Lyapunov exponents

  13. Algorithm-Based Fault Tolerance for Fail-Stop Failures

    E-Print Network [OSTI]

    Dongarra, Jack

    after failures, the next generation high performance computing applications need to be able to continue1 Algorithm-Based Fault Tolerance for Fail-Stop Failures Zizhong Chen and Jack Dongarra Abstract Fail-stop failures in distributed environments are often tolerated by checkpointing or message logging

  14. How Europe fails its young Sep 8th 2005

    E-Print Network [OSTI]

    Marrucci, Lorenzo

    How Europe fails its young Sep 8th 2005 From The Economist print edition The state of Europe sense of a sort: Europe's only chance of preserving its living standards lies in working smarter than its competitors rather than harder or cheaper. But Europe's failing higher-education system poses

  15. A nNon-photorealistic Model for Procedural Painterly Rendered Trees in the Style of Corot 

    E-Print Network [OSTI]

    Losure, Michael Robert

    2009-05-15

    This thesis describes the development of a system for the procedural generation and painterly rendering of trees. Specifically, the rendered trees are modeled after those found in the oil landscape paintings of 19th century French painter Camille...

  16. Rendering the Electromechanical Valve Actuator Globally Asymptotically Stable Katherine S. Peterson and Anna G. Stefanopoulou*

    E-Print Network [OSTI]

    Sontag, Eduardo

    Rendering the Electromechanical Valve Actuator Globally Asymptotically Stable Katherine S. Peterson on Sontag's feedback to render the electromechanical valve actuator (EVA) globally asymptotically stable (GAS). Elec- tromechanical valve actuators have received much attention recently due to their potential

  17. High Quality Interactive Rendering of Massive Point Models using Multi-way Prashant Goswami

    E-Print Network [OSTI]

    Pajarola, Renato B.

    of millions of splats/second on modern GPUs, improving the quality vs. performance ratio compared to previous large point data rendering methods. II. RELATED WORK While the use of points as rendering primitives has

  18. Rendering the Electromechanical Valve Actuator Globally Asymptotically Stable Katherine S. Peterson*

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    Rendering the Electromechanical Valve Actuator Globally Asymptotically Stable Katherine S. Peterson to render the electromechanical valve actuator (EVA) globally asymptotically stable (GAS). Elec], piezo's [17], and hydraulic systems [8]. Electromechanical valve actuators (EVA) which use

  19. The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says

    E-Print Network [OSTI]

    The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says by Irwan Firdaus, The Associated Press January 15th, 2003 JAKARTA, Indonesia -- Corruption in Indonesia's police and military has contributed to a surge in illegal logging that has

  20. Robust Cost Colorings Takuro Fukunaga

    E-Print Network [OSTI]

    Halldórsson, Magnús M.

    Robust Cost Colorings Takuro Fukunaga Magn´us M. Halld´orsson Hiroshi Nagamochi Abstract We consider graph coloring problems where the cost of a coloring is the sum of the costs of the colors, and the cost of a color is a monotone concave function of the total weight of the class. This models resource

  1. Fail Safe Design for Large Capacity Lithium-ion Batteries

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fail Safe Design for Large Capacity Lithium-ion Batteries NREL Commercialization & Tech Transfer Webinar March 27, 2011 Gi-Heon Kim gi-heon.kim@nrel.gov John Ireland, Kyu-Jin Lee,...

  2. Why the Top Two Primary Fails California Voters

    E-Print Network [OSTI]

    Maviglio, Steven

    2015-01-01

    Why the Top Two Primary Fails California Voters Steven14, the proponents of the Top Two primary made some boldto voters. They said the Top Two would “reduce gridlock,” “

  3. Tomographic image reconstruction and rendering with texture-mapping hardware

    SciTech Connect (OSTI)

    Azevedo, S.G.; Cabral, B.K.; Foran, J.

    1994-07-01

    The image reconstruction problem, also known as the inverse Radon transform, for x-ray computed tomography (CT) is found in numerous applications in medicine and industry. The most common algorithm used in these cases is filtered backprojection (FBP), which, while a simple procedure, is time-consuming for large images on any type of computational engine. Specially-designed, dedicated parallel processors are commonly used in medical CT scanners, whose results are then passed to graphics workstation for rendering and analysis. However, a fast direct FBP algorithm can be implemented on modern texture-mapping hardware in current high-end workstation platforms. This is done by casting the FBP algorithm as an image warping operation with summing. Texture-mapping hardware, such as that on the Silicon Graphics Reality Engine (TM), shows around 600 times speedup of backprojection over a CPU-based implementation (a 100 Mhz R4400 in this case). This technique has the further advantages of flexibility and rapid programming. In addition, the same hardware can be used for both image reconstruction and for volumetric rendering. The techniques can also be used to accelerate iterative reconstruction algorithms. The hardware architecture also allows more complex operations than straight-ray backprojection if they are required, including fan-beam, cone-beam, and curved ray paths, with little or no speed penalties.

  4. Development of the IES method for evaluating the color rendition of light sources

    SciTech Connect (OSTI)

    David, Aurelien [Soraa Inc., Fremont CA (United States); Fini, Paul T. [Cree Inc., Goleta, CA (United States); Houser, Kevin W. [Dept. of Architectural Engineering, Penn State University, State College, PA (United States); Ohno, Yoshi [National Institute of Standards and Technology, Gaithersburg, MD (United States); Royer, Michael P. [Pacific Northwest National Laboratory; Richland Washington USA; Smet, Kevin A. G. [Light& Lighting Laboratory/ESAT, KU Leuven, 3000 Ghent, Belgium; Wei, Minchen [Dept. of Architectural Engineering, Penn State University, State College, PA (United States); Whitehead, Lorne [Department of Physics and Astronomy, University of British Columbia, Vancouver Canada

    2015-01-01

    We have developed a two-measure system for evaluating light sources’ color rendition that builds upon conceptual progress of numerous researchers over the last two decades. The system quantifies the color fidelity and color gamut (change in object chroma) of a light source in comparison to a reference illuminant. The calculations are based on a newly developed set of reflectance data from real samples uniformly distributed in color space (thereby fairly representing all colors) and in wavelength space (thereby precluding artificial optimization of the color rendition scores by spectral engineering). The color fidelity score Rf is an improved version of the CIE color rendering index. The color gamut score Rg is an improved version of the Gamut Area Index. In combination, they provide two complementary assessments to guide the optimization of future light sources. This method summarizes the findings of the Color Metric Task Group of the Illuminating Engineering Society of North America (IES). It is adopted in the upcoming IES TM-30-2015, and is proposed for consideration with the International Commission on Illumination (CIE).

  5. Development of the IES method for evaluating the color rendition of light sources

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    David, Aurelien; Fini, Paul T.; Houser, Kevin W.; Ohno, Yoshi; Royer, Michael P.; USA, Richland Washington; Smet, Kevin A. G.; Wei, Minchen; Whitehead, Lorne

    2015-06-08

    We have developed a two-measure system for evaluating light sources’ color rendition that builds upon conceptual progress of numerous researchers over the last two decades. The system quantifies the color fidelity and color gamut (change in object chroma) of a light source in comparison to a reference illuminant. The calculations are based on a newly developed set of reflectance data from real samples uniformly distributed in color space (thereby fairly representing all colors) and in wavelength space (thereby precluding artificial optimization of the color rendition scores by spectral engineering). The color fidelity score Rf is an improved version of themore »CIE color rendering index. The color gamut score Rg is an improved version of the Gamut Area Index. In combination, they provide two complementary assessments to guide the optimization of future light sources. This method summarizes the findings of the Color Metric Task Group of the Illuminating Engineering Society of North America (IES). It is adopted in the upcoming IES TM-30-2015, and is proposed for consideration with the International Commission on Illumination (CIE).« less

  6. Unfolding the color code

    E-Print Network [OSTI]

    Aleksander Kubica; Beni Yoshida; Fernando Pastawski

    2015-03-06

    The topological color code and the toric code are two leading candidates for realizing fault-tolerant quantum computation. Here we show that the color code on a $d$-dimensional closed manifold is equivalent to multiple decoupled copies of the $d$-dimensional toric code up to local unitary transformations and adding or removing ancilla qubits. Our result not only generalizes the proven equivalence for $d=2$, but also provides an explicit recipe of how to decouple independent components of the color code, highlighting the importance of colorability in the construction of the code. Moreover, for the $d$-dimensional color code with $d+1$ boundaries of $d+1$ distinct colors, we find that the code is equivalent to multiple copies of the $d$-dimensional toric code which are attached along a $(d-1)$-dimensional boundary. In particular, for $d=2$, we show that the (triangular) color code with boundaries is equivalent to the (folded) toric code with boundaries. We also find that the $d$-dimensional toric code admits logical non-Pauli gates from the $d$-th level of the Clifford hierarchy, and thus saturates the bound by Bravyi and K\\"{o}nig. In particular, we show that the $d$-qubit control-$Z$ logical gate can be fault-tolerantly implemented on the stack of $d$ copies of the toric code by a local unitary transformation.

  7. Unconventional Color Superconductor

    E-Print Network [OSTI]

    Mei Huang

    2007-01-31

    Superfluidity or superconductivity with mismatched Fermi momenta appears in many systems such as charge neutral dense quark matter, asymmetric nuclear matter, and in imbalanced cold atomic gases. The mismatch plays the role of breaking the Cooper pairing, and the pair-breaking state cannot be properly described in the framework of standard BCS theory. I give a brief review on recent theoretical development in understanding unconventional color superconductivity, including gapless color superconductor, the chromomagnetic instabilities and the Higgs instability in the gapless phase. I also introduce a possible new framework for describing unconventional color superconductor.

  8. Failed supernovae explain the compact remnant mass function

    SciTech Connect (OSTI)

    Kochanek, C. S. [Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USAAND (United States); Center for Cosmology and AstroParticle Physics, The Ohio State University, 191 W. Woodruff Avenue, Columbus, OH 43210 (United States)

    2014-04-10

    One explanation for the absence of higher mass red supergiants (16.5 M {sub ?} ? M ? 25 M {sub ?}) as the progenitors of Type IIP supernovae (SNe) is that they die in failed SNe creating black holes. Simulations show that such failed SNe still eject their hydrogen envelopes in a weak transient, leaving a black hole with the mass of the star's helium core (5-8 M {sub ?}). Here we show that this naturally explains the typical masses of observed black holes and the gap between neutron star and black hole masses without any fine-tuning of stellar mass loss, binary mass transfer, or the SN mechanism, beyond having it fail in a mass range where many progenitor models have density structures that make the explosions more likely to fail. There is no difficulty including this ?20% population of failed SNe in any accounting of SN types over the progenitor mass function. And, other than patience, there is no observational barrier to either detecting these black hole formation events or limiting their rates to be well below this prediction.

  9. On-the-Fly Decompression and Rendering of Multiresolution Terrain

    SciTech Connect (OSTI)

    Lindstrom, P; Cohen, J D

    2009-04-02

    We present a streaming geometry compression codec for multiresolution, uniformly-gridded, triangular terrain patches that supports very fast decompression. Our method is based on linear prediction and residual coding for lossless compression of the full-resolution data. As simplified patches on coarser levels in the hierarchy already incur some data loss, we optionally allow further quantization for more lossy compression. The quantization levels are adaptive on a per-patch basis, while still permitting seamless, adaptive tessellations of the terrain. Our geometry compression on such a hierarchy achieves compression ratios of 3:1 to 12:1. Our scheme is not only suitable for fast decompression on the CPU, but also for parallel decoding on the GPU with peak throughput over 2 billion triangles per second. Each terrain patch is independently decompressed on the fly from a variable-rate bitstream by a GPU geometry program with no branches or conditionals. Thus we can store the geometry compressed on the GPU, reducing storage and bandwidth requirements throughout the system. In our rendering approach, only compressed bitstreams and the decoded height values in the view-dependent 'cut' are explicitly stored on the GPU. Normal vectors are computed in a streaming fashion, and remaining geometry and texture coordinates, as well as mesh connectivity, are shared and re-used for all patches. We demonstrate and evaluate our algorithms on a small prototype system in which all compressed geometry fits in the GPU memory and decompression occurs on the fly every rendering frame without any cache maintenance.

  10. Perspective-Dependent Color-Changing Roofing Sheets Anthony Cartwright, Joseph Karas, Steven McCarthy, Brian Paige

    E-Print Network [OSTI]

    Rollins, Andrew M.

    Perspective-Dependent Color-Changing Roofing Sheets Anthony Cartwright, Joseph Karas, Steven Mc are rendered useless in colder climates. Of all the parts of a house, the roof nearly always receives the most in the sky. In concentrated residential areas, multiple roofs will absorb and radiate energy from the sun

  11. Crystalline color superconductors

    E-Print Network [OSTI]

    Roberto Anglani; Roberto Casalbuoni; Marco Ciminale; Raoul Gatto; Nicola Ippolito; Massimo Mannarelli; Marco Ruggieri

    2014-04-12

    Inhomogeneous superconductors and inhomogeneous superfluids appear in a variety of contexts including quark matter at extreme densities, fermionic systems of cold atoms, type-II cuprates, and organic superconductors. In the present review the focus is on properties of quark matter at high baryonic density, which may exist in the interior of compact stars. The conditions realized in these stellar objects tend to disfavor standard symmetric BCS pairing and may favor an inhomogeneous color superconducting phase. The properties of inhomogeneous color superconductors are discussed in detail and in particular of crystalline color superconductors. The possible astrophysical signatures associated with the presence of crystalline color superconducting phases within the core of compact stars are also reviewed.

  12. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    E-Print Network [OSTI]

    Howison, Mark

    2010-01-01

    W. , and Childs, H. (2010) MPI-hybrid parallelism for volumeHybrid Parallelism for Volume Rendering on Large, Multi-corecharacteristics of “hybrid” parallel program- ming and

  13. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    E-Print Network [OSTI]

    Howison, Mark

    2010-01-01

    Hybrid Parallelism for Volume Rendering on Large, Multi-corendings indicate that the hybrid-parallel implementation, atpassing against a “hybrid” parallel im- plementation, which

  14. ESem: Innumeracy Wri0ng Rubric Fails to Meet

    E-Print Network [OSTI]

    Myers, Amy

    ESem: Innumeracy Wri0ng Rubric Fails to Meet Expecta0ons in addi,on to mee,ng expecta,ons Mo0ve None given Unconvincing Believable,on, transi,ons, and logic Development or complica,on of thesis in addi,on to mee,ng

  15. Precomputed Radiance Transfer for Real-Time Rendering in Dynamic, Low-Frequency Lighting Environments

    E-Print Network [OSTI]

    Kazhdan, Michael

    Precomputed Radiance Transfer for Real-Time Rendering in Dynamic, Low-Frequency Lighting a new, real-time method for rendering diffuse and glossy objects in low-frequency lighting environments-frequency incident lighting into transferred radiance which includes global effects like shadows and interreflections

  16. Approaching the exa-scale: a real-world evaluation of rendering extremely large data sets

    SciTech Connect (OSTI)

    Patchett, John M; Ahrens, James P; Lo, Li - Ta; Browniee, Carson S; Mitchell, Christopher J; Hansen, Chuck

    2010-10-15

    Extremely large scale analysis is becoming increasingly important as supercomputers and their simulations move from petascale to exascale. The lack of dedicated hardware acceleration for rendering on today's supercomputing platforms motivates our detailed evaluation of the possibility of interactive rendering on the supercomputer. In order to facilitate our understanding of rendering on the supercomputing platform, we focus on scalability of rendering algorithms and architecture envisioned for exascale datasets. To understand tradeoffs for dealing with extremely large datasets, we compare three different rendering algorithms for large polygonal data: software based ray tracing, software based rasterization and hardware accelerated rasterization. We present a case study of strong and weak scaling of rendering extremely large data on both GPU and CPU based parallel supercomputers using Para View, a parallel visualization tool. Wc use three different data sets: two synthetic and one from a scientific application. At an extreme scale, algorithmic rendering choices make a difference and should be considered while approaching exascale computing, visualization, and analysis. We find software based ray-tracing offers a viable approach for scalable rendering of the projected future massive data sizes.

  17. Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering

    E-Print Network [OSTI]

    Columbia University

    Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering Bo Sun School of Arts and Sciences COLUMBIA UNIVERSITY 2008 #12;c 2008 Bo Sun All Rights Reserved #12;ABSTRACT Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering Bo Sun Real

  18. KEYBOARD MAPPING AND FONT RENDERING TECHNIQUES FOR NON-LATIN LANGUAGES CASE OF ANDROID MOBILE PHONES

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    KEYBOARD MAPPING AND FONT RENDERING TECHNIQUES FOR NON-LATIN LANGUAGES CASE OF ANDROID MOBILE Rendering Techniques for Non-Latin Languages Case of Android Mobile Phones by Dhruv Bhasin Master of Science Devanagari script and writing system, no input method solution has existed so far in Android Mobiles

  19. CSC2522 Course Project Michael Tao 6.1 Rendering Wet Sand

    E-Print Network [OSTI]

    Toronto, University of

    CSC2522 Course Project Michael Tao 6.1 Rendering Wet Sand 6.1.1 Goals The primary goal of this project was to implement a method for rendering sand as a wet porous medium with water flowing into it from within PBRT. The final result was a video of sand being wetted by water particles flowing through

  20. Method and system for rendering and interacting with an adaptable computing environment

    DOE Patents [OSTI]

    Osbourn, Gordon Cecil (Albuquerque, NM); Bouchard, Ann Marie (Albuquerque, NM)

    2012-06-12

    An adaptable computing environment is implemented with software entities termed "s-machines", which self-assemble into hierarchical data structures capable of rendering and interacting with the computing environment. A hierarchical data structure includes a first hierarchical s-machine bound to a second hierarchical s-machine. The first hierarchical s-machine is associated with a first layer of a rendering region on a display screen and the second hierarchical s-machine is associated with a second layer of the rendering region overlaying at least a portion of the first layer. A screen element s-machine is linked to the first hierarchical s-machine. The screen element s-machine manages data associated with a screen element rendered to the display screen within the rendering region at the first layer.

  1. The Color Glass Condensate

    E-Print Network [OSTI]

    F. Gelis; E. Iancu; J. Jalilian-Marian; R. Venugopalan

    2010-02-01

    We provide a broad overview of the theoretical status and phenomenological applications of the Color Glass Condensate effective field theory describing universal properties of saturated gluons in hadron wavefunctions that are extracted from deeply inelastic scattering and hadron-hadron collision experiments at high energies.

  2. School Conditions Will Continue to Earn Failing Grades 

    E-Print Network [OSTI]

    Sonne, J. K.; Vieira, R. K.; Cummings, J. B.

    2006-01-01

    Will Continue to Earn Failing Grades Jeffrey K. Sonne Senior Research Engineer Robin K. Vieira Director, Buildings Research Division Florida Solar Energy Center Cocoa, Florida James B. Cummings Program Manager ABSTRACT This study addresses... (dehumidification) performance. • Cooling system fans can be set to fan “on” on days when the outdoor dew point temperature is say 62 o F or below. • After making changes, monitor indoor relative humidity during hot and humid weather. If reducing air handler...

  3. Fermilab | Graphic Standards at Fermilab | Color palette

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Color palette PDF Version Fermilab's core color is NAL Blue, developed for Fermilab in the 1970s by the Rustoleum paint company. The laboratory's original color palette was...

  4. Image indexing using color correlograms

    DOE Patents [OSTI]

    Huang, Jing (Ossining, NY); Kumar, Shanmugasundaram Ravi (San Jose, CA); Mitra, Mandar (Calcutta, IN); Zhu, Wei-Jing (Ossining, NY)

    2001-01-01

    A color correlogram is a three-dimensional table indexed by color and distance between pixels which expresses how the spatial correlation of color changes with distance in a stored image. The color correlogram may be used to distinguish an image from other images in a database. To create a color correlogram, the colors in the image are quantized into m color values, c.sub.i . . . c.sub.m. Also, the distance values k.epsilon.[d] to be used in the correlogram are determined where [d] is the set of distances between pixels in the image, and where dmax is the maximum distance measurement between pixels in the image. Each entry (i, j, k) in the table is the probability of finding a pixel of color c.sub.i at a selected distance k from a pixel of color c.sub.i. A color autocorrelogram, which is a restricted version of the color correlogram that considers color pairs of the form (i,i) only, may also be used to identify an image.

  5. The painting camera: an abstract rendering system with camera-control images 

    E-Print Network [OSTI]

    Meadows, Scott Harrison

    2000-01-01

    ) tvaren Hi Hi (Member) Alan Stacell (Member) (Member) May 2000 Major Subject: Visualization Sciences i i i A B S T R A C T The Painting Camera System: An Abstract Rendering System with Camera-Control Images. (May 2000) Scott Harrison Meadows, B... Motivation 2 Structure 3 B A C K G R O U N D 4 Cubism and Collage 4 Early Computer Art 7 2D Image Generation: Painting Tools 9 Photorealistic Rendering 10 Non-Photorealistic Rendering 13 M E T H O D O L O G Y 17 3D Scene 19 Camera-Control Image 21...

  6. Analysis of failed ramps during the RHIC FY09 run

    SciTech Connect (OSTI)

    Minty, M.

    2014-08-15

    The Relativistic Heavy Ion Collider (RHIC) is a versatile accelerator that supports operation with polarized protons of up to 250 GeV and ions with up to 100 GeV/nucleon. During any running period, various operating scenarios with different particle species, beam energies or accelerator optics are commissioned. In this report the beam commissioning periods for establishing full energy beams (ramp development periods) from the FY09 run are summarized and, for the purpose of motivating further developments, we analyze the reasons for all failed ramps.

  7. Fail-safe storage rack for irradiated fuel rod assemblies

    DOE Patents [OSTI]

    Lewis, D.R.

    1993-03-23

    A fail-safe storage rack is provided for interim storage of spent but radioactive nuclear fuel rod assemblies. The rack consists of a checkerboard array of substantially square, elongate receiving tubes fully enclosed by a double walled container, the outer wall of which is imperforate for liquid containment and the inner wall of which is provided with perforations for admitting moderator liquid flow to the elongate receiving tubes, the liquid serving to take up waste heat from the stored nuclear assemblies and dissipate same to the ambient liquid reservoir. A perforated cover sealing the rack facilitates cooling liquid entry and dissipation.

  8. Fail Safe Design for Large Capacity Lithium-ion Batteries

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvan Racah861 ANNUAL|FacilityAbout »Faculty ProgramsFail

  9. Fitting Pinna-Related Transfer Functions to Anthropometry for Binaural Sound Rendering

    E-Print Network [OSTI]

    Avanzini, Federico

    Fitting Pinna-Related Transfer Functions to Anthropometry for Binaural Sound Rendering Simone Spagnol 1 , Michele Geronazzo 2 , Federico Avanzini 3 Department of Information Engineering, Universit of resonant modes - are basically monaural and heavily depend on the listener's anthropometry. Finding

  10. Reflection Space Image Based Rendering Brian Cabral, Marc Olano, Philip Nemec

    E-Print Network [OSTI]

    Olano, Marc

    Reflection Space Image Based Rendering Brian Cabral, Marc Olano, Philip Nemec SGI Abstract High to approximate the integral lighting equation. ¡ e-mail: ¢ cabral,olano,nemec£ @sgi.com Environment mapping

  11. Using color photometry to separate transiting exoplanets from false positives

    E-Print Network [OSTI]

    B. Tingley

    2004-07-14

    The radial velocity technique is currently used to classify transiting objects. While capable of identifying grazing binary eclipses, this technique cannot reliably identify blends, a chance overlap of a faint background eclipsing binary with an ordinary foreground star. Blends generally have no observable radial velocity shifts, as the foreground star is brighter by several magnitudes and therefore dominates the spectrum, but their combined light can produce events that closely resemble those produced by transiting exoplanets. The radial velocity technique takes advantage of the mass difference between planets and stars to classify exoplanet candidates. However, the existence of blends renders this difference an unreliable discriminator. Another difference must therefore be utilized for this classification -- the physical size of the transiting body. Due to the dependence of limb darkening on color, planets and stars produce subtly different transit shapes. These differences can be relatively weak, little more than 1/10th the transit depth. However, the presence of even small color differences between the individual components of the blend increases this difference. This paper will show that this color difference is capable of discriminating between exoplanets and blends reliably, theoretically capable of classifying even terrestrial-class transits, unlike the radial velocity technique.

  12. Ranking nodes in growing networks: When PageRank fails

    E-Print Network [OSTI]

    Mariani, Manuel Sebastian; Zhang, Yi-Cheng

    2015-01-01

    PageRank is arguably the most popular ranking algorithm which is being applied in real systems ranging from information to biological and infrastructure networks. Despite its outstanding popularity and broad use in different areas of science, the relation between the algorithm's efficacy and properties of the network on which it acts has not yet been fully understood. We study here PageRank's performance on a network model supported by real data, and show that realistic temporal effects make PageRank fail in individuating the most valuable nodes for a broad range of model parameters. Results on real data are in qualitative agreement with our model-based findings. This failure of PageRank reveals that the static approach to information filtering is inappropriate for a broad class of growing systems, and suggest that time-dependent algorithms that are based on the temporal linking patterns of these systems are needed to better rank the nodes.

  13. Detonating Failed Deflagration Model of Thermonuclear Supernovae I. Explosion Dynamics

    E-Print Network [OSTI]

    Tomasz Plewa

    2006-11-24

    We present a detonating failed deflagration model of Type Ia supernovae. In this model, the thermonuclear explosion of a massive white dwarf follows an off-center deflagration. We conduct a survey of asymmetric ignition configurations initiated at various distances from the stellar center. In all cases studied, we find that only a small amount of stellar fuel is consumed during deflagration phase, no explosion is obtained, and the released energy is mostly wasted on expanding the progenitor. Products of the failed deflagration quickly reach the stellar surface, polluting and strongly disturbing it. These disturbances eventually evolve into small and isolated shock-dominated regions which are rich in fuel. We consider these regions as seeds capable of forming self-sustained detonations that, ultimately, result in the thermonuclear supernova explosion. Preliminary nucleosynthesis results indicate the model supernova ejecta are typically composed of about 0.1-0.25 Msun of silicon group elements, 0.9-1.2 Msun of iron group elements, and are essentially carbon-free. The ejecta have a composite morphology, are chemically stratified, and display a modest amount of intrinsic asymmetry. The innermost layers are slightly egg-shaped with the axis ratio ~1.2-1.3 and dominated by the products of silicon burning. This central region is surrounded by a shell of silicon-group elements. The outermost layers of ejecta are highly inhomogeneous and contain products of incomplete oxygen burning with only small admixture of unburned stellar material. The explosion energies are ~1.3-1.5 10^51 erg.

  14. Lugano, 12th November 2012 A supercomputer to understand the failing heart

    E-Print Network [OSTI]

    the failing heart Biventricular pacemakers fail to improve the faulty contraction of the diseased heart in thirty per cent of patients with heart failure. Together conduction system in the heart, which keeps the blood circulation going

  15. Color Glass Condensate and Glasma

    E-Print Network [OSTI]

    Francois Gelis

    2010-09-06

    In this talk, I review the Color Glass Condensate theory of gluon saturation, and its application to the early stages of heavy ion collisions.

  16. False color viewing device

    DOE Patents [OSTI]

    Kronberg, J.W.

    1991-05-08

    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.

  17. False color viewing device

    DOE Patents [OSTI]

    Kronberg, J.W.

    1992-10-20

    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.

  18. False color viewing device

    DOE Patents [OSTI]

    Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

    1992-01-01

    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.

  19. Local intelligent electronic device (IED) rendering templates over limited bandwidth communication link to manage remote IED

    DOE Patents [OSTI]

    Bradetich, Ryan; Dearien, Jason A; Grussling, Barry Jakob; Remaley, Gavin

    2013-11-05

    The present disclosure provides systems and methods for remote device management. According to various embodiments, a local intelligent electronic device (IED) may be in communication with a remote IED via a limited bandwidth communication link, such as a serial link. The limited bandwidth communication link may not support traditional remote management interfaces. According to one embodiment, a local IED may present an operator with a management interface for a remote IED by rendering locally stored templates. The local IED may render the locally stored templates using sparse data obtained from the remote IED. According to various embodiments, the management interface may be a web client interface and/or an HTML interface. The bandwidth required to present a remote management interface may be significantly reduced by rendering locally stored templates rather than requesting an entire management interface from the remote IED. According to various embodiments, an IED may comprise an encryption transceiver.

  20. LED Color Stability: 10 Important Questions

    Broader source: Energy.gov [DOE]

    This April 15, 2014 webinar examined the causes of color shift, and took a look at existing metrics used to describe color shift/color stability in LED lighting. The lumen maintenance lifetime of...

  1. Volume Rendering with Animation of Gulf Stream Currents David Ehrens Ramprasad Balasubramanian

    E-Print Network [OSTI]

    Schulze, Jürgen P.

    Volume Rendering with Animation of Gulf Stream Currents David Ehrens Ramprasad Balasubramanian data is required. High or low density objects, corresponding to heat-laden currents, can be en- hanced. Introduction Understanding the ocean through computer models is im- portant and numerous models exist. Several

  2. Acoustic-Tactile Rendering of Visual Information Pubudu Madhawa Silva1

    E-Print Network [OSTI]

    Pappas, Thrasyvoulos N.

    as the primary source of information for object localization and identification, while touch is used bothAcoustic-Tactile Rendering of Visual Information Pubudu Madhawa Silva1 , Thrasyvoulos N. Pappas1 have proposed a dynamic, interactive system for conveying visual information via hearing and touch

  3. In Proc. NPAR 2010 Non-Photorealistic Rendering and the Science of Art

    E-Print Network [OSTI]

    Hertzmann, Aaron

    In Proc. NPAR 2010 Non-Photorealistic Rendering and the Science of Art Aaron Hertzmann University in the scientific understanding of visual art and illustra- tion. NPR can contribute to scientific understanding Introduction Why does art work? How can a few lines or blobs drawn on a piece of paper express motion, form

  4. Rendering Adaptation to Address Communication and Computation Constraints in Cloud Mobile Gaming

    E-Print Network [OSTI]

    California at San Diego, University of

    Rendering Adaptation to Address Communication and Computation Constraints in Cloud Mobile Gaming by the available server computing resource for each client, considering cloud server hosts numerous clients Shaoxuan Wang, Sujit Dey Mobile System Design Lab, Dept. of Electrical and Computer Engineering University

  5. MMR: An Interactive Massive Model Rendering System Using Geometric And Image-Based Acceleration

    E-Print Network [OSTI]

    Cohen, Jonathan

    walkthroughs of a 13 million triangle model of a large coal-fired power plant and of a 1.7 million triangle architectural model. We demonstrate the walkthrough of a 1.3 GB power plant model with a 140 MB cache footprint viewpoints and partition the space into virtual cells. Each cell contains near geometry, rendered using

  6. Integrating Occlusion Culling with Parallel LOD for Rendering Complex 3D Environments on GPU

    E-Print Network [OSTI]

    Cao, Yong

    Parallel-GigaVis. (a)-(b) The Boeing 777 model; (c)-(d) The Power Plant model. Abstract Real-time rendering computer graphics applications, such as mechanical en- gineering, game development and virtual reality-scale models usually overbur- dens the computational power and memory capacity of the GPUs. To solve

  7. Scalable Interactive Volume Rendering Using Off-the-Shelf Components Santiago Lombeyda

    E-Print Network [OSTI]

    Barr, Al

    Scalable Interactive Volume Rendering Using Off-the-Shelf Components Santiago Lombeyda Laurent. By employing pipelined associative blending operators in a sort-last configuration a demonstration system. This requires solving a dynamic mapping problem for a class of blending operators that includes Porter

  8. Transfer Function Based Adaptive Decompression for Volume Rendering of Large Medical Data Sets

    E-Print Network [OSTI]

    performance limitations in direct volume rendering pipelines. The methods presented in this paper exploit the medical knowledge embedded in the transfer function to reduce the required bandwidth in the pipeline be developed, replacing invasive methods with non-invasive methods to minimize patient risk and discomfort

  9. Perceptual considerations for motion blur rendering FERNANDO NAVARRO, Microsoft Games Studios

    E-Print Network [OSTI]

    Gutierrez, Diego

    SUSANA CASTILLO, FRANCISCO J. SER´ON, DIEGO GUTIERREZ, Universidad de Zaragoza Motion blur is a frequent. and Castillo, S. and Ser´on, F. and Gutierrez, D. 2011. Perceptual considerations for motion blur rendering;1:2 · F. Navarro, S. Castillo, F. Ser´on and D. Gutierrez Fig. 1. In this work, we explore

  10. IEEE TRANSACTIONS ON IMAGE PROCESSING 1 Probability-Based Rendering for View Synthesis

    E-Print Network [OSTI]

    Do, Minh N.

    . We address this problem by formulating the rendering process as an image fusion in which the textures- tion, correspondence matching, image fusion, random walk with restart (RWR). I. INTRODUCTION at the Advanced Digital Sciences Center from Singapore's Agency for Science, Technology and Research (A*STAR). B

  11. CLASSIFICATION OF BIOMEDICAL HIGH-RESOLUTION MICRO-CT IMAGES FOR DIRECT VOLUME RENDERING

    E-Print Network [OSTI]

    López-Sánchez, Maite

    CLASSIFICATION OF BIOMEDICAL HIGH-RESOLUTION MICRO-CT IMAGES FOR DIRECT VOLUME RENDERING Maite L of biomedical high- resolution 3D images. More concretely, it proposes a learn- ing pipeline process and refinements. KEYWORDS Machine Learning, Biomedical 3D Images, Classification, CRF (Conditional Random Fields

  12. Functional Analysis of the Vertebral Column based on MR and Direct Volume Rendering

    E-Print Network [OSTI]

    Blanz, Volker

    Functional Analysis of the Vertebral Column based on MR and Direct Volume Rendering P. Hastreiter1 of Neurosurgery, University of Erlangen­Nuremberg, Germany Abstract. Degenerative diseases of the vertebral column suggest a coarse segmentation of the vertebral column. This is achieved with a fast sequence of filtering

  13. Improving Insight in Medical Volume Rendering Ken Brodliea and Marcelo Cohenb

    E-Print Network [OSTI]

    Brodlie, Ken

    , University of Leeds, UK, bPUCRS, Brazil Extended Abstract Volume rendering is now a well established parts of the volume that are not of interest. The talk will review these algorithmic developments effects we look in detail at one particular piece of work by ourselves at Leeds. This adopts the focus

  14. Volumetric Windows: Application to Interpretation of Scientific Data, Shader-based Rendering Method, and

    E-Print Network [OSTI]

    Borst, Christoph Walter

    Volumetric Windows: Application to Interpretation of Scientific Data, Shader-based Rendering Method for volumetric windows, a 3D analog of the 2D windows metaphor. A set of parameters reflected in both implementation and user menus allows windows to behave like 3D volumetric lenses, clip windows, world

  15. The Planet Janitor© Coloring Book

    K-12 Energy Lesson Plans and Activities Web site (EERE)

    This is a coloring book with text in English and Spanish. It focuses on the environmental aspects of energy production and use but also has pictures on solar energy.

  16. Elliptic flow from color strings

    E-Print Network [OSTI]

    M. A. Braun; C. Pajares

    2010-08-02

    It is shown that the elliptic flow can be successfully described in the color string picture with fusion and percolation provided anisotropy of particle emission from the fused string is taken into account. Two possible sources of this anisotropy are considered, propagation of the string in the transverse plane and quenching of produced particles in the strong color field of the string. Calculations show that the second source gives an overwhelming contribution to the flow at accessible energies.

  17. An Improvement to Mathon's Cyclotomic Ramsey Colorings

    E-Print Network [OSTI]

    Radziszowski, Stanislaw P.

    An Improvement to Mathon's Cyclotomic Ramsey Colorings Xiaodong Xu # Guangxi Academy of Sciences)­colorings, respectively. The Ramsey number R(k 1 , . . . , km ) is defined to be the least n > 0 such that R(k 1 (k) and Rm (k; n) for sets of colorings, and Rm (k) for the Ramsey numbers. In the case of 2 colors

  18. On The Use of Eddy Current Brakes as Tunable, Fast Turn-On Viscous Dampers For Haptic Rendering

    E-Print Network [OSTI]

    Hayward, Vincent

    On The Use of Eddy Current Brakes as Tunable, Fast Turn-On Viscous Dampers For Haptic RenderingGill University, Montr´eal, Canada ABSTRACT We describe the use of eddy current brakes as fast turn-on, tunable, linear dampers for haptic rendering using a prototype haptic device outfitted with eddy current brakes

  19. render safe

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) August 20123/%2A en46Afedkcp8/%2A4/%2A6/%2A en Y-12's4

  20. From a Failed-Growth Economy to a Steady-State Economy

    E-Print Network [OSTI]

    Zaferatos, Nicholas C.

    From a Failed-Growth Economy to a Steady-State Economy By Herman Daly A steady-state economy of negative growth, a depression such as we are entering now, is a failed-growth economy, not a steady-state economy. Halting an accelerating downward spiral is necessary but is not the same thing as resuming

  1. How To Color In A Coloring Book Henry Lieberman

    E-Print Network [OSTI]

    Lieberman, Henry

    and efficient, optimized to take advantage of the the memory organization of most current raster graphics input device, or taken from a photograph or television picture. This is a popular operation in "paint paint b~ number, filling in each area with a paint of a chosen color. Here's another way of thinking

  2. Colored Noise in Quantum Chaos

    E-Print Network [OSTI]

    Luca Salasnich

    2005-02-15

    We derive a set of spectral statistics whose power spectrum is characterized, in the case of chaotic quantum systems, by colored noise $1/f^{\\gamma}$, where the integer parameter $\\gamma$ critically depends on the specific energy-level statistic considered. In the case of regular quantum systems these spectral statistics show $1/f^{\\gamma+1}$ noise.

  3. SmartColor: Real-Time Color Correction and Contrast for Optical See-Through Head-Mounted Displays

    E-Print Network [OSTI]

    -through head-mounted displays (OHMD) perceive color as a blend of the display color and the background. Color-blending correction aims at mitigating color blending by producing an alternative color which, when blended present SmartColor, a middleware for color management of user- interface components in OHMD. Smart

  4. Color Maintenance of LEDs in Laboratory and Field Applications...

    Office of Scientific and Technical Information (OSTI)

    Royer, Michael P.; Tuttle, Ralph; Rosenfeld, Scott M.; Miller, Naomi J. Light-emitting diode (LED), color shift, color stability, color maintenance, warranty Light-emitting...

  5. UNDERSTANDING LED COLOR-TUNABLE PRODUCTS

    Broader source: Energy.gov [DOE]

    LED luminaires with the ability to deliver varying light color have been on the architectural lighting market since the early days of LED lighting, but improved efficacy, colors, controls, and...

  6. SPECIFYING LED COLOR-TUNABLE PRODUCTS

    Broader source: Energy.gov [DOE]

    Specifying LED color-tunable luminaires is dependent on being able to make accurate comparisons between products. Yet reporting performance values for color-tunable products is much more...

  7. Estimation of E. coli Concentrations from Failing On-Site Wastewater Treatment Facilities (OWTS) Using GIS 

    E-Print Network [OSTI]

    Virani, Afreen Shiraz

    2014-08-12

    prediction tool was developed using Geographic Information System (GIS) to assess failing OWTS and the potential E. coli contamination to surface waters. This tool will help identify different parameters affecting E. coli concentration in streams, which...

  8. 1. An integral extension of integral domains where going-down fails ...

    E-Print Network [OSTI]

    2011-11-10

    An integral extension of integral domains where going-down fails. Definition 1. Let A be a subring of an integral domain B. The conductor of B into A is c = {a ? A ...

  9. An Improvement to Mathon's Cyclotomic Ramsey Colorings

    E-Print Network [OSTI]

    Radziszowski, Stanislaw P.

    An Improvement to Mathon's Cyclotomic Ramsey Colorings Xiaodong Xu Guangxi Academy of Sciences, . . . , km)- and (k1, . . . , km; n)-colorings, respectively. The Ramsey number R(k1, . . . , km) is defined will use simpler notation Rm(k) and Rm(k; n) for sets of colorings, and Rm(k) for the Ramsey numbers

  10. Computational Neuroimaging: Color Representations and Processing

    E-Print Network [OSTI]

    Wandell, Brian A.

    Computational Neuroimaging: Color Representations and Processing £ Brian A. Wandell Neuroscience the retinal image as a collection of objects having various perceptual features, including color, motion the retinal image. This chapter reviews the main ideas concerning how color appearance is derived from

  11. Color Systems 1 Notes and Remarks

    E-Print Network [OSTI]

    de Figueiredo, Luiz Henrique

    Chapter 4 Color Systems 1 Notes and Remarks 1.0.1 A Remark on the Chapter This chapter contains standard material about color systems. A great part of the chapter is found on the current books. An exception is the covering of the chrominance-luminance color systems. The reader should also notive

  12. Procedural Generation and Rendering of Trees and Landscapes in the Style of Eyvind Earle 

    E-Print Network [OSTI]

    Murphy, Laura Kristine

    2015-05-05

    Earle was one of the artistic giants of the golden age of animation, perhaps most well known for his work on Sleeping Beauty [4]. After many years of odd jobs and freelance artwork, he obtained a job at Disney as an assistant background painter. He... of time. Noise and other designed mathematical functions are allowed to take some control away from the artist. Basing 3D computer generated images on artwork is a significant topic in com- puter graphics. The field of non-photorealistic rendering (NPR...

  13. Color Dynamics On Phase Space

    E-Print Network [OSTI]

    A. Bonasera

    2000-03-09

    We describe the properties of quark matter at zero temperature and finite baryon densities within microscopic Vlasov/molecular dynamics approaches. We use an inter-quark Richardson's potential consistent with the indications of Lattice QCD calculations. The color degrees of freedom are explicitly taken into account. We explicitly demonstrate that the Vlasov approach alone is insufficient in the hadronization region. In order to overcome this problem we prepare the initial condition for many events using molecular dynamics with frictional cooling and a Thomas-Fermi approximation to the Fermi motion. These events are averaged and propagated in time using the Vlasov approach. We find some evidence for a second order phase transition from nuclear to quark matter at high baryon densities. An order parameter suitable to describe the phase transition is discussed. At low densities the quark condensate into approximately color white clusters (nucleon).

  14. Overview of Crystalline Color Superconductors

    E-Print Network [OSTI]

    Mannarelli, Massimo

    2015-01-01

    Inhomogeneous phases may appear when a stress is applied to a system and the system can minimize the free energy breaking the rotational invariance. Various examples are known in Nature of this sort, as the paramagnetic to ferromagnetic phase transition, or the fluid/solid phase transition. If the rotational symmetry is broken down to a discrete symmetry, the system is typically named a crystal. We breifly review crystalline color superconductors, which arise in cold quark matter with mismatched Fermi spheres.

  15. Overview of Crystalline Color Superconductors

    E-Print Network [OSTI]

    Massimo Mannarelli

    2015-05-19

    Inhomogeneous phases may appear when a stress is applied to a system and the system can minimize the free energy breaking the rotational invariance. Various examples are known in Nature of this sort, as the paramagnetic to ferromagnetic phase transition, or the fluid/solid phase transition. If the rotational symmetry is broken down to a discrete symmetry, the system is typically named a crystal. We breifly review crystalline color superconductors, which arise in cold quark matter with mismatched Fermi spheres.

  16. Color Glass Condensate and Glasma

    E-Print Network [OSTI]

    F. Gelis

    2012-11-26

    We review the Color Glass Condensate effective theory, that describes the gluon content of a high energy hadron or nucleus, in the saturation regime. The emphasis is put on applications to high energy heavy ion collisions. After describing initial state factorization, we discuss the Glasma phase, that precedes the formation of an equilibrated quark-gluon plasma. We end this review with a presentation of recent developments in the study of the isotropization and thermalization of the quark-gluon plasma.

  17. Applications of color powder paint in the automotive industry

    E-Print Network [OSTI]

    Barberich, Bevin, 1975-

    2004-01-01

    Both color keyed and color specific liquid primers have been used successfully in automotive paint application, reducing the use of costly topcoat materials. Generally, color keyed primer is close in color to the topcoat ...

  18. December 18, 2008December 18, 2008 AGU San Francisco `Failed' magmatic eruptionsAGU San Francisco `Failed' magmatic eruptions 11 The review of the 1975-1977The review of the 1975-1977

    E-Print Network [OSTI]

    Beauducel, François

    December 18, 2008December 18, 2008 AGU San Francisco `Failed' magmatic eruptionsAGU San Francisco Physique du Globe de Paris Volcanological Observatories Dpt. #12;December 18, 2008December 18, 2008 AGU San Francisco `Failed' magmatic eruptionsAGU San Francisco `Failed' magmatic eruptions 22 PlanPlan I

  19. Aluminum plasmonic metamaterials for structural color printing

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Cheng, Fei; Gao, Jie; Stan, Liliana; Rosenmann, Daniel; Czaplewski, David; Yang, Xiaodong

    2015-05-26

    We report a structural color printing platform based on aluminum plasmonic metamaterials supporting near perfect light absorption and narrow-band spectral response tunable across the visible spectrum to realize high-resolution, angle-insensitive color printing with high color purity and saturation. Additionally, the fabricated metamaterials can be protected by a transparent polymer thin layer for ambient use with further improved color performance. The demonstrated structural color printing with aluminum plasmonic metamaterials offers great potential for relevant applications such as security marking and information storage.

  20. Volume rendering of 3D scalar and vector fields at LLNL

    SciTech Connect (OSTI)

    Crawfis, R.; Max, N.; Becker, B.; Cabral, B.

    1993-04-01

    Simulation of complex 3-dimensional phenomena data sets which are hard to comprehend using conventional 2-dimensionally oriented visualization tools. One way to overcome this limitation is to employ various volume visualization techniques. While early volume visualization techniques worked well on simple scalar volumes they failed to exploit frame buffer hardware capabilities and handle higher order data such as vector field. Work at Lawrence Livermore National Laboratory has centered on developing new techniques and extending existing techniques.

  1. NLO evolution of color dipoles

    E-Print Network [OSTI]

    Ian Balitsky; Giovanni A. Chirilli

    2007-10-23

    The small-$x$ deep inelastic scattering in the saturation region is governed by the non-linear evolution of Wilson-line operators. In the leading logarithmic approximation it is given by the BK equation for the evolution of color dipoles. In the next-to-leading order the BK equation gets contributions from quark and gluon loops as well as from the tree gluon diagrams with quadratic and cubic nonlinearities. We calculate the gluon contribution to small-x evolution of Wilson lines (the quark part was obtained earlier).

  2. NLO evolution of color dipoles

    SciTech Connect (OSTI)

    Ian Balitsky; Giovanni Chirilli

    2008-01-01

    The small-x deep inelastic scattering in the saturation region is governed by the non-linear evolution of Wilson-lines operators. In the leading logarithmic approximation it is given by the BK equation for the evolution of color dipoles. In the next-to-leaing order the BK equation gets contributions from quark and gluon loops as well as from the tree gluon diagrams with quadratic and cubic nonlinearities. We calculate the gluon contribution to small-x evolution of Wilson lines (the quark part was obtained earlier).

  3. DOE CALiPER Program, Report 20.1 Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps

    SciTech Connect (OSTI)

    Royer, Michael P.; Poplawski, Michael E.; Miller, Naomi J.

    2013-10-01

    This report focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality. Using a questionnaire that included rank ordering, opinions on 27 of the Report 20 PAR38 lamps were gathered during a demonstration event for members of the local Illuminating Engineering Society (IES) chapter. This was not a rigorous scientific experiment, and the data should not be extrapolated beyond the scope of the demonstration. The results suggest that many of the LED products compared favorably to halogen PAR38 benchmarks in all attributes considered. LED lamps using a single-emitter design were generally preferred for their beam quality and shadow quality, and the IES members ranking of color quality did not always match the rank according to the color rendering index (CRI).

  4. Tools for calculations in color space

    E-Print Network [OSTI]

    Malin Sjodahl; Stefan Keppeler

    2013-07-04

    Both the higher energy and the initial state colored partons contribute to making exact calculations in QCD color space more important at the LHC than at its predecessors. This is applicable whether the method of assessing QCD is fixed order calculation, resummation, or parton showers. In this talk we discuss tools for tackling the problem of performing exact color summed calculations. We start with theoretical tools in the form of the (standard) trace bases and the orthogonal multiplet bases (for which a general method of construction was recently presented). Following this, we focus on two new packages for performing color structure calculations: one easy to use Mathematica package, ColorMath, and one C++ package, ColorFull, which is suitable for more demanding calculations, and for interfacing with event generators.

  5. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2010-07-12

    This work studies the performance and scalability characteristics of"hybrid'"parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today and 128-core chips coming soon, we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.

  6. MPI-hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2010-03-20

    This work studies the performance and scalability characteristics of"hybrid'" parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today and 128-core chips coming soon, we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.

  7. Hybrid Parallelism for Volume Rendering on Large, Multi- and Many-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2011-01-01

    With the computing industry trending towards multi- and many-core processors, we study how a standard visualization algorithm, ray-casting volume rendering, can benefit from a hybrid parallelism approach. Hybrid parallelism provides the best of both worlds: using distributed-memory parallelism across a large numbers of nodes increases available FLOPs and memory, while exploiting shared-memory parallelism among the cores within each node ensures that each node performs its portion of the larger calculation as efficiently as possible. We demonstrate results from weak and strong scaling studies, at levels of concurrency ranging up to 216,000, and with datasets as large as 12.2 trillion cells. The greatest benefit from hybrid parallelism lies in the communication portion of the algorithm, the dominant cost at higher levels of concurrency. We show that reducing the number of participants with a hybrid approach significantly improves performance.

  8. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2010-06-14

    This work studies the performance and scalability characteristics of"hybrid" parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today and 128-core chips coming soon, we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.

  9. Topological Galleries: A High Level User Interface for Topology Controlled Volume Rendering

    SciTech Connect (OSTI)

    MacCarthy, Brian; Carr, Hamish; Weber, Gunther H.

    2011-06-30

    Existing topological interfaces to volume rendering are limited by their reliance on sophisticated knowledge of topology by the user. We extend previous work by describing topological galleries, an interface for novice users that is based on the design galleries approach. We report three contributions: an interface based on hierarchical thumbnail galleries to display the containment relationships between topologically identifiable features, the use of the pruning hierarchy instead of branch decomposition for contour tree simplification, and drag-and-drop transfer function assignment for individual components. Initial results suggest that this approach suffers from limitations due to rapid drop-off of feature size in the pruning hierarchy. We explore these limitations by providing statistics of feature size as function of depth in the pruning hierarchy of the contour tree.

  10. Rendering graphene supports hydrophilic with non-covalent aromatic functionalization for transmission electron microscopy

    SciTech Connect (OSTI)

    Pantelic, Radosav S., E-mail: pantelic@imbb.forth.gr [National Cancer Institute, 50 South Drive, Building 50, Room 4306, Bethesda, Maryland 20892 (United States); Fu, Wangyang; Schoenenberger, Christian [Department of Physics, University of Basel, Klingelbergstrasse 82, Basel CH-4056 (Switzerland); Stahlberg, Henning [Center for Cellular Imaging and NanoAnalytics, Biozentrum, University of Basel, Mattenstrasse 26, WRO-1058, Basel CH-4058 (Switzerland)

    2014-03-31

    Amorphous carbon films have been routinely used to enhance the preparation of frozen-hydrated samples for transmission electron microscopy (TEM), either in retaining protein concentration, providing mechanical stability or dissipating sample charge. However, strong background signal from the amorphous carbon support obstructs that of the sample, and the insulating properties of thin amorphous carbon films preclude any efficiency in dispersing charge. Graphene addresses the limitations of amorphous carbon. Graphene is a crystalline material with virtually no phase or amplitude contrast and unparalleled, high electrical carrier mobility. However, the hydrophobic properties of graphene have prevented its routine application in Cryo-TEM. This Letter reports a method for rendering graphene TEM supports hydrophilic—a convenient approach maintaining graphene's structural and electrical properties based on non-covalent, aromatic functionalization.

  11. Fail save shut off valve for filtering systems employing candle filters

    DOE Patents [OSTI]

    VanOsdol, John (Fairmont, WV)

    2006-01-03

    The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

  12. Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters

    DOE Patents [OSTI]

    VanOsdol, John

    2006-01-03

    The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

  13. Modular architecture of isospin, color, and generation

    E-Print Network [OSTI]

    David Ritz Finkelstein

    2014-12-22

    Starting from the vacuum, iterated Grassmann-algebra formation consecutively introduces vector spaces and groups with the structure first of charge, then of isospin, then of color.

  14. CONTROLLING LED COLOR-TUNABLE PRODUCTS

    Broader source: Energy.gov [DOE]

    Controlling color-tunable luminaires can be challenging for specifiers, since different manufacturers use different approaches. Some manufacturers provide proprietary control devices, which often...

  15. East Asian Governments Failing on Illegal Logging as Greenpeace Launches Global Paradise Forests Campaign

    E-Print Network [OSTI]

    East Asian Governments Failing on Illegal Logging as Greenpeace Launches Global Paradise Forests non-violent, creative confrontation to expose global environmental problems, and to force solutions Law Enforcement and Governance (FLEG) to put words into action and take steps to seriously address

  16. How Quantum Computers Fail: Quantum Codes, Correlations in Physical Systems, and Noise Accumulation

    E-Print Network [OSTI]

    Kalai, Gil

    How Quantum Computers Fail: Quantum Codes, Correlations in Physical Systems, and Noise Accumulation, much of modern cryptography, as well as security in computer systems for finance and commerce are based Dedicated to the memory of Itamar Pitowsky Abstract The feasibility of computationally superior quantum

  17. Fail-Safe ANSI-C Compiler: An Approach to Making C Programs Secure

    E-Print Network [OSTI]

    Sumii, Eijiro

    Fail-Safe ANSI-C Compiler: An Approach to Making C Programs Secure Progress Report Yutaka Oiwa1 proposed and implemented. To our knowledge, however, none of them support all the features of the ANSI C.) This paper describes a memory-safe implementation of the full ANSI C language. Our implementation detects

  18. A METHOD FOR COLOR NAMING AND DESCRIPTION OF COLOR COMPOSITION IN IMAGES

    E-Print Network [OSTI]

    Mojsilovic, Aleksandra

    -magnetic radiation that strikes the retina [1]. According to the theories postulated to explain human perception for color names [4], and through subjective experiments develop our color vocabulary and syntax. Next. The algorithm follows the relevant neurophysiological findings and studies on human color categorization

  19. ColorFull -- a C++ library for calculations in SU(Nc) color space

    E-Print Network [OSTI]

    Malin Sjodahl

    2015-06-29

    ColorFull, a C++ package for treating QCD color structure, is presented. ColorFull, which utilizes the trace basis approach, is intended for interfacing with event generators, but can also be used as a stand-alone package for squaring QCD amplitudes, calculating interferences, and describing the effect of gluon emission and gluon exchange.

  20. Two-color infrared detector

    DOE Patents [OSTI]

    Klem, John F; Kim, Jin K

    2014-05-13

    A two-color detector includes a first absorber layer. The first absorber layer exhibits a first valence band energy characterized by a first valence band energy function. A barrier layer adjoins the first absorber layer at a first interface. The barrier layer exhibits a second valence band energy characterized by a second valence band energy function. The barrier layer also adjoins a second absorber layer at a second interface. The second absorber layer exhibits a third valence band energy characterized by a third valence band energy function. The first and second valence band energy functions are substantially functionally or physically continuous at the first interface and the second and third valence band energy functions are substantially functionally or physically continuous at the second interface.

  1. Color symmetric superconductivity in a phenomenological QCD model

    E-Print Network [OSTI]

    Henrik Bohr; Constança Providência; João da Providência

    2009-09-19

    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.

  2. Color Printer Characterization Adjustment for Different

    E-Print Network [OSTI]

    Sharma, Gaurav

    is often implemented as a 3D look-up table that maps from a device independent color space (e.g. CIELABColor Printer Characterization Adjustment for Different Substrates Mark Shaw,*1 Gaurav Sharma,2 October 2002; accepted 6 November 2002 Abstract: The use of multiple substrates in color printers requires

  3. Ratio model serves suprathreshold color luminance discrimination

    E-Print Network [OSTI]

    Mullen, Kathy T.

    Ratio model serves suprathreshold color­ luminance discrimination Marcel J. Sankeralli and Kathy T the responses of the three postreceptoral mechanisms are combined to subserve discrimination of suprathreshold model of suprathreshold color­luminance dis- crimination, in which discrimination depends on a ratio

  4. Colored HOMFLY polynomials can distinguish mutant knots

    E-Print Network [OSTI]

    Satoshi Nawata; P. Ramadevi; Vivek Kumar Singh

    2015-04-01

    We illustrate from the viewpoint of braiding operations on WZNW conformal blocks how colored HOMFLY polynomials with multiplicity structure can detect mutations. As an example, we explicitly evaluate the (2,1)-colored HOMFLY polynomials that distinguish a famous mutant pair, Kinoshita-Terasaka and Conway knot.

  5. Poisson color algebras of arbitrary degree

    E-Print Network [OSTI]

    Antonio J. Calderon; Diouf M. Cheikh

    2015-07-20

    A Poisson algebra is a Lie algebra endowed with a commutative associative product in such a way that the Lie and associative products are compatible via a Leibniz rule. If we part from a Lie color algebra, instead of a Lie algebra, a graded-commutative associative product and a graded-version Leibniz rule we get a so-called Poisson color algebra (of degree zero). This concept can be extended to any degree so as to obtain the class of Poisson color algebras of arbitrary degree. This class turns out to be a wide class of algebras containing the ones of Lie color algebras (and so Lie superalgebras and Lie algebras), Poisson algebras, graded Poisson algebras, $z$-Poisson algebras, Gerstenhaber algebras and Schouten algebras among others classes of algebras. The present paper is devoted to the study of the structure of Poisson color algebras of arbitrary degree, with restrictions neither on the dimension nor the base field.

  6. Factors influencing the neglect of color photography : 1860 to 1970

    E-Print Network [OSTI]

    Milanowski, Stephen R

    1982-01-01

    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 ...

  7. NEW OBSERVATION OF FAILED FILAMENT ERUPTIONS: THE INFLUENCE OF ASYMMETRIC CORONAL BACKGROUND FIELDS ON SOLAR ERUPTIONS

    SciTech Connect (OSTI)

    Liu, Y.; Xu, Z.; Su, J.; Lin, H.; Shibata, K.; Kurokawa, H.

    2009-05-01

    Failed filament eruptions not associated with a coronal mass ejection (CME) have been observed and reported as evidence for solar coronal field confinement on erupting flux ropes. In those events, each filament eventually returns to its origin on the solar surface. In this Letter, a new observation of two failed filament eruptions is reported which indicates that the mass of a confined filament can be ejected to places far from the original filament channel. The jetlike mass motions in the two failed filament eruptions are thought to be due to the asymmetry of the background coronal magnetic fields with respect to the locations of the filament channels. The asymmetry of the coronal fields is confirmed by an extrapolation based on a potential field model. The obvious imbalance between the positive and negative magnetic flux (with a ratio of 1:3) in the bipolar active region is thought to be the direct cause of the formation of the asymmetric coronal fields. We think that the asymmetry of the background fields can not only influence the trajectories of ejecta, but also provide a relatively stronger confinement for flux rope eruptions than the symmetric background fields do.

  8. Efficient Acquisition and Realistic Rendering of Car Paint Johannes Gunther, Tongbo Chen, Michael Goesele, Ingo Wald, and Hans-Peter Seidel

    E-Print Network [OSTI]

    Goesele, Michael

    Efficient Acquisition and Realistic Rendering of Car Paint Johannes G¨unther, Tongbo Chen, Michael Beetle" car rendered with a measured and fitted "Polaris Silber" car paint, lighted from Paul Debevec's HDR environment map of the Uffizi Gallery in Florence [5]. Abstract The outside appearance of cars

  9. Induced Magnetism in Color-Superconducting Media

    E-Print Network [OSTI]

    Efrain J. Ferrer

    2010-01-22

    The dense core of compact stars is the natural medium for the realization of color superconductivity. A common characteristic of such astrophysical objects is their strong magnetic fields, especially those of the so called magnetars. In this talk, I discuss how a color superconducting core can generate or/and enhance the stellar magnetic field independently of a magnetohydrodynamic dynamo mechanism. The magnetic field generator is in this case a gluonic current which circulates to stabilize the color superconductor in the presence of a strong magnetic field or under the pairing stress produced in the medium by the neutrality and $\\beta$-equilibrium constraints.

  10. The Color Glass Condensate and Glasma

    E-Print Network [OSTI]

    Larry McLerran

    2008-04-10

    These two lectures concern the Color Glass Condensate and the Glasma. These are forms of matter which might be studied in high energy hadronic collisions. The Color Glass Condensate is high energy density gluonic matter. It constitutes the part of a hadron wavefunction important for high energy processes. The Glasma is matter produced from the collision of two high energy hadrons. Both types of matter are associated with coherent fields. The Color Glass Condensate is static and related to a hadron wavefunction where the glasma is transient and evolves quickly after a collision. I present the properties of such matter, and some aspects of what is known of their properties.

  11. Colored condensates deep inside neutron stars

    E-Print Network [OSTI]

    David Blaschke

    2014-07-28

    It is demonstrated how in the absence of solutions for QCD under conditions deep inside compact stars an equation of state can be obtained within a model that is built on the basic symmetries of the QCD Lagrangian, in particular chiral symmetry and color symmetry. While in the vacuum the chiral symmetry is spontaneously broken, it gets restored at high densities. Color symmetry, however, gets broken simultaneously by the formation of colorful diquark condensates. It is shown that a strong diquark condensate in cold dense quark matter is essential for supporting the possibility that such states could exist in the recently observed pulsars with masses of 2 $M_\\odot$.

  12. Initial Conditions from Color Glass Condensate 

    E-Print Network [OSTI]

    Chen, Guangyao

    2013-08-06

    Nuclei at very high energy, characterized by a saturation scale, can be described by an e?ective theory of Quantum ChromoDynamics (QCD) called Color Glass Condensates. The earliest phase of the collision of two nuclei is ...

  13. Department of Computer Science University of North Carolina at Chapel Hill February 2004 MMR: Massive Model Rendering System

    E-Print Network [OSTI]

    Pollefeys, Marc

    ) in real- time. We chose a 15-million-triangle model of a coal-fired electric power plant (Figure 1) as our-time rendering system. Figure 1. A view of our 15-million polygon model of a coal-fired power plant. The MMR to accelerate the walkthrough of a large coal-fired power plant model with more than 15 million triangles

  14. VARIATIONAL MODELS FOR IMAGE COLORIZATION VIA CHROMATICITY AND BRIGHTNESS DECOMPOSITION

    E-Print Network [OSTI]

    regions with color are given. We propose a couple of variational models using chromaticity color component algorithm using weighted distance image blending technique is studied in [49]. The authors utilize Dijkstra, and YCbCr (Luminance,two color-difference components) widely used for digital video; nonlinear color

  15. Color Halftoning with Stochastic Dithering and Adaptive Clustering

    E-Print Network [OSTI]

    de Figueiredo, Luiz Henrique

    Color Halftoning with Stochastic Dithering and Adaptive Clustering Luiz Velho, Jonas Gomes IMPA.). In this paper we introduce a new halftoning technique for color reproduction. The algorithm adapts to a wide Color Separation and Halftoning Color printing is based on a reflective light process. The ink

  16. CoastWatch/OceanWatch Proving Ground: VIIRS Ocean Color

    E-Print Network [OSTI]

    ;VIIRS Operational Ocean Color User: NWS/EMC · Phytoplankton alter the penetration of solar radiationCoastWatch/OceanWatch Proving Ground: VIIRS Ocean Color User Engagement, Quality Assessment Science Seminar #12;Outline Overview of VIIRS Ocean Color Proving Ground (Hughes) VIIRS Ocean Color

  17. A COMPUTER GRAPHICS SYSTEM FOR EXAMINING PAINT COLOR COLLECTIONS

    E-Print Network [OSTI]

    Meyer, Gary

    A COMPUTER GRAPHICS SYSTEM FOR EXAMINING PAINT COLOR COLLECTIONS Seth Berrier1, 2 , Gary Meyer1, 2 for organizing and displaying the colors in a paint collection is presented. A virtual representation interface for selecting a color from the collection. Software for visualizing a paint color on a three

  18. Randomly Coloring Graphs of Girth at Least Five [Extended Abstract

    E-Print Network [OSTI]

    Hayes, Thomas

    , a vertex is selected behaved with high probability. This tail inequalityamaytberandom, and its color

  19. FAILED GAMMA-RAY BURSTS: THERMAL ULTRAVIOLET/SOFT X-RAY EMISSION ACCOMPANIED BY PECULIAR AFTERGLOWS

    SciTech Connect (OSTI)

    Xu, M.; Huang, Y. F. [Department of Astronomy, Nanjing University, Nanjing 210093 (China); Nagataki, S.; Lee, S.-H., E-mail: hyf@nju.edu.cn [Yukawa Institute for Theoretical Physics, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8502 (Japan)

    2012-02-10

    We show that the photospheres of 'failed' gamma-ray bursts (GRBs), whose bulk Lorentz factors are much lower than 100, can be outside of internal shocks. The resulting radiation from the photospheres is thermal and bright in the UV/soft X-ray band. The photospheric emission lasts for about 1000 s with a luminosity about several times 10{sup 46} erg s{sup -1}. These events can be observed by current and future satellites. It is also shown that the afterglows of failed GRBs are peculiar at the early stage, which makes it possible to distinguish failed GRBs from ordinary GRBs and beaming-induced orphan afterglows.

  20. The colored Kitaev chain with triple degeneracy

    E-Print Network [OSTI]

    Li-Wei Yu; Mo-Lin Ge

    2015-07-19

    We construct the 1D colored Kitaev model based on the solution of Yang-Baxter equation. We show that the colored Kitaev model possesses both triple degenerate ground states and non-trivial topological winding number. Hence, the colored Kitaev model is a direct generalization of 1D Kitaev model. On the other hand, inspired by the 3-body Majorana model proposed by Lee and Wilczek, we define a new 3-body Hamiltonian $\\hat{H}_{123}$ based on Yang-Baxter equation. Different from the Majorana doubling, $\\hat{H}_{123}$ holds triple degeneracy in each energy level. The triple degeneracy is protected by two symmetry operators of the system, $\\omega$-parity $P$($\\omega=e^{{\\textrm{i}\\frac{2\\pi}{3}}}$) and emergent operator $\\Gamma$, which are the generalization of parity $P_{M}$ and emergent Majorana operator in Lee-Wilczek model, respectively. Both the colored Kitaev model and $\\hat{H}_{123}$ are SU(3)-like models in color space. In comparison with the Majorana models at SU(2)-level, we find that the SU(3)-like models are exactly the generalization of Majorana models.

  1. Constraining Light Colored Particles with Event Shapes

    SciTech Connect (OSTI)

    Kaplan, David E.; Schwartz, Matthew D.

    2008-07-11

    Using recently developed techniques for computing event shapes with soft-collinear effective theory, CERN Large Electron Positron Collider event shape data are used to derive strong model-independent bounds on new colored particles. In the effective field theory computation, colored particles contribute in loops not only to the running of {alpha}{sub s} but also to the running of hard, jet, and soft functions. Moreover, the differential distribution in the effective theory explicitly probes many energy scales, so even shapes have a strong sensitivity to new particle thresholds. Using thrust data from ALEPH and OPAL, colored adjoint fermions (such as a gluino) below 51.0 GeV are ruled out to 95% confidence. This is nearly an order-of-magnitude improvement over the previous model-independent bound of 6.3 GeV.

  2. Scalable and fail-safe deployment of the ATLAS Distributed Data Management system Rucio

    E-Print Network [OSTI]

    Lassnig, Mario; The ATLAS collaboration; Barisits, Martin-Stefan; Beermann, Thomas Alfons; Serfon, Cedric; Garonne, Vincent

    2015-01-01

    This contribution details the deployment of Rucio, the ATLAS Distributed Data Management system. The main complication is that Rucio interacts with a wide variety of external services, and connects globally distributed data centres under different technological and administrative control, at an unprecedented data volume. It is therefore not possibly to create a duplicate instance of Rucio for testing or integration. Every software upgrade or configuration change is thus potentially disruptive and requires fail-safe software and automatic error recovery. Rucio uses a three-layer scaling and mitigation strategy based on quasi-realtime monitoring. This strategy mainly employs independent stateless services, automatic failover, and service migration. The technologies used for deployment and mitigation include OpenStack, Puppet, Graphite, HAProxy, Apache, and nginx. In this contribution, the reasons and design decisions for the deployment, the actual implementation, and an evaluation of all involved services and c...

  3. Scalable and fail-safe deployment of the ATLAS Distributed Data Management system Rucio

    E-Print Network [OSTI]

    Lassnig, Mario; The ATLAS collaboration; Beermann, Thomas Alfons; Barisits, Martin-Stefan; Garonne, Vincent; Serfon, Cedric

    2015-01-01

    This contribution details the deployment of Rucio, the ATLAS Distributed Data Management system. The main complication is that Rucio interacts with a wide variety of external services, and connects globally distributed data centres under different technological and administrative control, at an unprecedented data volume. It is therefore not possibly to create a duplicate instance of Rucio for testing or integration. Every software upgrade or configuration change is thus potentially disruptive and requires fail-safe software and automatic error recovery. Rucio uses a three-layer scaling and mitigation strategy based on quasi-realtime monitoring. This strategy mainly employs independent stateless services, automatic failover, and service migration. The technologies used for deployment and mitigation include OpenStack, Puppet, Graphite, HAProxy and Apache. In this contribution, the interplay between these component, their deployment, software mitigation, and the monitoring strategy are discussed.

  4. Cooling of Color Superconducting Compact Stars

    E-Print Network [OSTI]

    David Blaschke

    2006-03-26

    We review the status of research on the cooling of compact stars, with emphasis on the influence of color superconducting quark matter phases. Although a consistent microscopic approach is not yet available, severe constraints on the phase structure of matter at high densities come from recent mass and cooling observations of compact stars.

  5. Color Imaging Arithmetic: Physics Math > Physics + Math

    E-Print Network [OSTI]

    Sharma, Gaurav

    Color Imaging Arithmetic: Physics Math > Physics + Math Gaurav Sharma University of Rochester inter- action commonly form the physical interface by which we connect to the digital cyber-world. Because these devices bridge the physical and the electronic worlds, elegant and effective solutions

  6. Color selective photodetector and methods of making

    DOE Patents [OSTI]

    Walker, Brian J.; Dorn, August; Bulovic, Vladimir; Bawendi, Moungi G.

    2013-03-19

    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.

  7. Oceanography June 200450 Colored Dissolved Organic

    E-Print Network [OSTI]

    Oregon, University of

    . Sunlight striking the ocean surface penetrates into the water column and interacts with the dissolvedOceanography June 200450 Colored Dissolved Organic in the Coastal Ocean A N O P T I C A L TO O L F usage that all three words are individu- ally synonymous for "ocean." Poems, song titles, and movies

  8. On Hair Color in France Ellen Gilkerson

    E-Print Network [OSTI]

    Borgs, Christian

    in the fall, and so we offer an alternative 2 "A table is nearly always better than a dumb pie chart; the only worse design than a pie chart is several of them." [3] 2 #12;conjecture: that the bright coloration 0.82% 82.79% 0.00% 16.39% 100% These results are displayed graphically in the following tart charts

  9. The Use of Color in Marketing: Colors and their Physiological and Psychological Implications

    E-Print Network [OSTI]

    Shi, Tommy

    2013-01-01

    color? a cross-cultural review of colour as a marketing cue.Journal of Marketing Communications, 12(1), 15-30. doi:likelihood. Psychology & marketing, 9(5), 347-363. Retrieved

  10. Optimization of sharp and viewing-angle-independent structural color

    E-Print Network [OSTI]

    Hsu, Chia Wei

    Structural coloration produces some of the most brilliant colors in nature and has many applications. Motivated by the recently proposed transparent displays that are based on wavelength-selective scattering, here we ...

  11. Speeding up Parallel Graph Coloring Assefaw H. Gebremedhin1,

    E-Print Network [OSTI]

    Manne, Fredrik

    Speeding up Parallel Graph Coloring Assefaw H. Gebremedhin1, , Fredrik Manne2 , and Tom Woods2 1. Gebremedhin, Fredrik Manne, and Tom Woods However, in practice greedy sequential coloring heuristics have been

  12. Color-accurate underwater imaging using perceptual adaptive illumination

    E-Print Network [OSTI]

    Vasilescu, Iuliu

    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 ...

  13. The rules of perception : American color science, 1831-1931

    E-Print Network [OSTI]

    Rossi, Michael Paul, Ph. D. Massachusetts Institute of Technology

    2011-01-01

    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 ...

  14. Evaluating Graph Coloring on Pascal Grosset, Peihong Zhu, Shusen Liu,

    E-Print Network [OSTI]

    Hall, Mary W.

    any relevant related works for graph coloring on GPUs · Main inspiration: o Gebremedhin and Manne o (G

  15. A New Genetic Local Search Algorithm for Graph Coloring

    E-Print Network [OSTI]

    Hao, Jin-Kao

    problem: to determine a partition of V in a minimum number (the chromatic number) of color classes C 1 ; C 2 ; :::; C k such that for each edge e ij 2 E, v i and v j are not in the same color class [15]. Such a color class is called an independent set. Let c(v i ) be the color (represented by a positive integer

  16. Color No Longer A Sign of Bondage: Race, Identity and the First Kansas Colored Volunteer Infantry Regiment (1862-1865)

    E-Print Network [OSTI]

    Ringquist, John Paul

    2011-08-31

    "Color No Longer A Sign of Bondage" is an account of the First Kansas Colored Volunteer Infantry Regiment from its earliest days in 1862 to the regiment's triumphant return to Kansas in November 1865. This work encompasses ...

  17. Dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job

    DOE Patents [OSTI]

    Budnik, Thomas A. (Rochester, MN); Knudson, Brant L. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Miller, Samuel J. (Rochester, MN); Stockdell, William M. (Byron, MN)

    2012-03-20

    Methods, systems, and products for dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job that include: identifying that a job failed to execute on the block of compute nodes because connectivity failed between a compute node assigned as at least one of the connected nodes for the block of compute nodes and its supporting I/O node; and re-launching the job, including selecting an alternative connected node that is actively coupled for data communications with an active I/O node; and assigning the alternative connected node as the connected node for the block of compute nodes running the re-launched job.

  18. Fail-Safe Design for Large Capacity Lithium-Ion Battery Systems

    SciTech Connect (OSTI)

    Kim, G. H.; Smith, K.; Ireland, J.; Pesaran, A.

    2012-07-15

    A fault leading to a thermal runaway in a lithium-ion battery is believed to grow over time from a latent defect. Significant efforts have been made to detect lithium-ion battery safety faults to proactively facilitate actions minimizing subsequent losses. Scaling up a battery greatly changes the thermal and electrical signals of a system developing a defect and its consequent behaviors during fault evolution. In a large-capacity system such as a battery for an electric vehicle, detecting a fault signal and confining the fault locally in the system are extremely challenging. This paper introduces a fail-safe design methodology for large-capacity lithium-ion battery systems. Analysis using an internal short circuit response model for multi-cell packs is presented that demonstrates the viability of the proposed concept for various design parameters and operating conditions. Locating a faulty cell in a multiple-cell module and determining the status of the fault's evolution can be achieved using signals easily measured from the electric terminals of the module. A methodology is introduced for electrical isolation of a faulty cell from the healthy cells in a system to prevent further electrical energy feed into the fault. Experimental demonstration is presented supporting the model results.

  19. Plasmonic nanoparticle scattering for color holograms

    E-Print Network [OSTI]

    Montelongo, Yunuen; Tenorio-Pearl, Jaime Oscar; Williams, Calum; Zhang, Shuang; Milne, William Ireland; Wilkinson, Timothy David

    2014-09-02

    resolution limit in optical microscopy or the storage capacity for optical memory devices. Holography in the subwavelength domain has been somewhat limited to the treatment of nanostructures with effective medium theory (EMT), for either dielectrics (10, 11... limitations of all of the optical devices in- volved (4–6). Here we use narrow-band scattering points to pro- duce two simultaneous independent color holograms in plane. Interestingly, in contrast with the traditional concept of optical information storage, we...

  20. THE INFRARED COLORS OF THE SUN

    SciTech Connect (OSTI)

    Casagrande, L.; Asplund, M.; Ramirez, I.; Melendez, J.

    2012-12-10

    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.

  1. Green is Our Favorite Color: Students Fill in the Lines with...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Green is Our Favorite Color: Students Fill in the Lines with Energy-themed Coloring Book Green is Our Favorite Color: Students Fill in the Lines with Energy-themed Coloring Book...

  2. Color superconducting quark matter in compact stars

    E-Print Network [OSTI]

    D. B. Blaschke; T. Klahn; F. Sandin

    2007-12-02

    Recent indications for high neutron star masses (M \\sim 2 M_sun) and large radii (R > 12 km) could rule out soft equations of state and have provoked a debate whether the occurence of quark matter in compact stars can be excluded as well. We show that modern quantum field theoretical approaches to quark matter including color superconductivity and a vector meanfield allow a microscopic description of hybrid stars which fulfill the new, strong constraints. For these objects color superconductivity turns out to be an essential ingredient for a successful description of the cooling phenomenology in accordance with recently developed tests. We discuss the energy release in the neutrino untrapping transition as a new aspect of the problem that hybrid stars masquerade themselves as neutron stars. Quark matter searches in future generations of low-temperature/high-density nucleus-nucleus collision experiments such as low-energy RHIC and CBM @ FAIR might face the same problem of an almost crossover behavior of the deconfinement transition. Therefore, diagnostic tools shall be derived from effects of color superconductivity.

  3. Abrikosov Gluon Vortices in Color Superconductors

    E-Print Network [OSTI]

    Efrain J. Ferrer

    2010-04-05

    In this talk I will discuss how the in-medium magnetic field can influence the gluon dynamics in a three-flavor color superconductor. It will be shown how at field strengths comparable to the charged gluon Meissner mass a new phase can be realized, giving rise to Abrikosov's vortices of charged gluons. In that phase, the inhomogeneous gluon condensate anti-screens the magnetic field due to the anomalous magnetic moment of these spin-1 particles. This paramagnetic effect can be of interest for astrophysics, since due to the gluon vortex antiscreening mechanism, compact stars with color superconducting cores could have larger magnetic fields than neutron stars made up entirely of nuclear matter. I will also discuss a second gluon condensation phenomenon connected to the Meissner instability attained at moderate densities by two-flavor color superconductors. In this situation, an inhomogeneous condensate of charged gluons emerges to remove the chromomagnetic instability created by the pairing mismatch, and as a consequence, the charged gluonic currents induce a magnetic field. Finally, I will point out a possible relation between glitches in neutron stars and the existence of the gluon vortices.

  4. nAture methods | VOL.11 NO.6 | JUNE2014 | 663 current in vitro hematopoiesis models fail to demonstrate

    E-Print Network [OSTI]

    Collins, James J.

    Articles nAture methods | VOL.11 NO.6 | JUNE2014 | 663 current in vitro hematopoiesis models fail and progenitor cells in normal in vivo­like proportions for at least 1 week in culture. eBm models organ­5. This hematopoietic niche regulates hematopoietic stem cells (HSCs), facilitating a delicate balance between self-renewal

  5. Color Correction for Optical See-Through Displays Using Display Color Profiles Srikanth Kirshnamachari Sridharan1

    E-Print Network [OSTI]

    -mail:irani@cs.umanitoba.ca plays or transparent OLED) or subtractive (filter white light from an external source e.g. LCD of Dundee, Dundee, Scotland Abstract In optical see-through displays, light coming from background ob- jects mixes with the light originating from the display, causing what is known as the color blending problem

  6. The strength of crystalline color superconductors

    E-Print Network [OSTI]

    Massimo Mannarelli; Krishna Rajagopal; Rishi Sharma

    2007-10-01

    We present a study of the shear modulus of the crystalline color superconducting phase of quark matter, showing that this phase of dense, but not asymptotically dense, quark matter responds to shear stress as a very rigid solid. This phase is characterized by a gap parameter $\\Delta$ that is periodically modulated in space and therefore spontaneously breaks translational invariance. We derive the effective action for the phonon fields that describe space- and time-dependent fluctuations of the crystal structure formed by $\\Delta$, and obtain the shear modulus from the coefficients of the spatial derivative terms. Within a Ginzburg-Landau approximation, we find shear moduli which are 20 to 1000 times larger than those of neutron star crusts. This phase of matter is thus more rigid than any known material in the universe, but at the same time the crystalline color superconducting phase is also superfluid. These properties raise the possibility that the presence of this phase within neutron stars may have distinct implications for their phenomenology. For example, (some) pulsar glitches may originate in crystalline superconducting neutron star cores.

  7. Color stable manganese-doped phosphors

    DOE Patents [OSTI]

    Lyons, Robert Joseph (Burnt Hills, NY); Setlur, Anant Achyut (Niskayuna, NY); Deshpande, Anirudha Rajendra (Twinsburg, OH); Grigorov, Ljudmil Slavchev (Sofia, BG)

    2012-08-28

    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.

  8. VolPack: A Volume Rendering Library This chapter describes the design of an experimental software library called VolPack. The

    E-Print Network [OSTI]

    Stanford University

    library based on user­defined callback functions for shading and classification. Alterna­ tivelyChapter 8 VolPack: A Volume Rendering Library This chapter describes the design of an experimental software library called VolPack. The library provides a high­performance implementation of the algorithms

  9. The Color Ellipsoid Framework for Imaging in the Atmosphere /

    E-Print Network [OSTI]

    Gibson, Kristofor B.

    2013-01-01

    to single image de- fogging was introduced by Gibson andAnalysis of Single Image De- fogging Methods using a Color

  10. COLORS OF INNER DISK CLASSICAL KUIPER BELT OBJECTS

    SciTech Connect (OSTI)

    Romanishin, W. [Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States); Tegler, S. C. [Department of Physics and Astronomy, Northern Arizona University, Flagstaff, AZ 86011 (United States); Consolmagno, G. J., E-mail: wromanishin@ou.ed, E-mail: Stephen.Tegler@nau.ed, E-mail: gjc@specola.v [Vatican Observatory, Specola Vaticana, V-00120 (Vatican City State, Holy See)

    2010-07-15

    We present new optical broadband colors, obtained with the Keck 1 and Vatican Advanced Technology telescopes, for six objects in the inner classical Kuiper Belt. Objects in the inner classical Kuiper Belt are of interest as they may represent the surviving members of the primordial Kuiper Belt that formed interior to the current position of the 3:2 resonance with Neptune, the current position of the plutinos, or, alternatively, they may be objects formed at a different heliocentric distance that were then moved to their present locations. The six new colors, combined with four previously published, show that the ten inner belt objects with known colors form a neutral clump and a reddish clump in B-R color. Nonparametric statistical tests show no significant difference between the B-R color distribution of the inner disk objects compared to the color distributions of Centaurs, plutinos, or scattered disk objects. However, the B-R color distribution of the inner classical Kuiper Belt Objects does differ significantly from the distribution of colors in the cold (low inclination) main classical Kuiper Belt. The cold main classical objects are predominately red, while the inner classical belt objects are a mixture of neutral and red. The color difference may reveal the existence of a gradient in the composition and/or surface processing history in the primordial Kuiper Belt, or indicate that the inner disk objects are not dynamically analogous to the cold main classical belt objects.

  11. The Color-Flavor Transformation and Lattice QCD

    E-Print Network [OSTI]

    B. Schlittgen; T. Wettig

    2002-09-09

    We present the color-flavor transformation for gauge group SU(N_c) and discuss its application to lattice QCD.

  12. Scannerless loss modulated flash color range imaging

    DOE Patents [OSTI]

    Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

    2008-09-02

    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.

  13. Scannerless loss modulated flash color range imaging

    DOE Patents [OSTI]

    Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

    2009-02-24

    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.

  14. Baryon Number as the Fourth Color

    E-Print Network [OSTI]

    Fornal, Bartosz; Tait, Tim M P

    2015-01-01

    We propose an extension of the Standard Model in which baryon number is promoted to be part of a non-Abelian gauge symmetry at high energies. Specifically, we consider the gauge group SU(4) x SU(2)_L x U(1)_X, where the SU(4) unifies baryon number and color. This symmetry is spontaneously broken down to the Standard Model gauge group at a scale which can be as low as a few TeV. The SU(4) structure implies that each SM quark comes along with an uncolored quark partner, the lightest of which is stabilized by the generalized baryon number symmetry and can play the role of dark matter. We explore circumstances under which one can realize a model of asymmetric dark matter whose relic abundance is connected to the observed baryon asymmetry, and discuss unique signatures that can be searched for at the LHC.

  15. LED lamp color control system and method

    DOE Patents [OSTI]

    Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.

    2013-02-05

    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.

  16. Rendering Concepts Reflectance

    E-Print Network [OSTI]

    Lischinski, Dani

    solid angle [W/(m2 sr)] 9 Photometric quantities Luminous energy [talbot] Luminous power [lumen = talbot optics Quantum mechanics 4 Radiant Energy Light can be thought of as flow of photons. The energy of each photon depends on its wavelength: We are interested in the equilibrium of radiant energy in a 3D scene

  17. Color me bad: microbial pigments as virulence factors

    E-Print Network [OSTI]

    Nizet, Victor

    , University of California, San Diego, La Jolla, CA, USA A hallmark feature of several pathogenic microbes. But such explanations cannot be offered to explain why certain microorganisms are pigmented. Because they lack color of species. For example, Rosenbach in 1884 named the golden-colored pathogen Staphylococcus aureus (Latin

  18. An Automated Method for Digitizing Color Thematic Maps

    E-Print Network [OSTI]

    Lawrence, Rick L.

    was to capture analog maps in three color bands using a digital camera and perform a su- pervised classification on the resulting digital images to pro- duce digital thematic maps for GIS analysis. Post classification proceduresAn Automated Method for Digitizing Color Thematic Maps Rick L. Lawrence, Joseph E. Means

  19. The CIEDE2000 Color-Difference Formula: Implementation Notes,

    E-Print Network [OSTI]

    Sharma, Gaurav

    The CIEDE2000 Color-Difference Formula: Implementation Notes, Supplementary Test Data and scientists in correctly implementing the recently developed CIEDE2000 color-difference formula. We indicate mathematical discontinuities in the formula. © 2004 Wiley Periodicals, Inc. Col Res Appl, 30, 21­30, 2005

  20. VITAMIN A in SELECTED. PALE-COLORED LIVERS

    E-Print Network [OSTI]

    VITAMIN A in SELECTED. PALE-COLORED LIVERS of ALASKA FUR SEALS, 1948 Marine Biological L - Fisheries No. 32 VITAMIN A IN SELECTED, PALE-COLORED LIVERS OF ALASKA FUR SEALS, I9I48 By Victor B. Scheffer, on the average, to wei^ 1,060 grams and to contain 2.k million "spec" units of vitamin A per poxmd and 3

  1. Natural Scene Image Modeling using Color and Texture Visterms.

    E-Print Network [OSTI]

    -of-visterms (BOV) representation (histogram of quantized local descriptors), extracted from both texture and color questions: how can color be integrated in the BOV framework and how much is gained by doing so the BOV image representation. Section 4 de- scribes the experimental setup. Classification results

  2. DOE Publishes Report on Color Stability of LED Lighting Products

    Broader source: Energy.gov [DOE]

    DOE has published a new GATEWAY report on color maintenance of LEDs in laboratory and field applications, summarizing color shift data of LED lamps used in real-world applications as well as LED products monitored by the CALiPER program in a lab

  3. Variability in Color Discrimination Data Explained by a Generic

    E-Print Network [OSTI]

    Alleysson, David

    on adapting backgrounds, using matching lights that varied both in chromaticity and luminance. First, weVariability in Color Discrimination Data Explained by a Generic Model with Nonlinear and Adaptive: A generic model of color discrimination is pre- sented. It involves adaptive nonlinearities at photoreceptor

  4. Bayesian Color Estimation for Adaptive Vision-based Robot Localization

    E-Print Network [OSTI]

    Schulz, Dirk

    to variations in the lighting condition, a robot needs to adapt its color model to such changes. We propose that the robot can localize under different lighting conditions and adapt to changes in the lighting condition Gaussian color model which enables a robot to quickly adapt to different lighting conditions. The lower

  5. Evidence for selection on coloration in a Panamanian poison frog

    E-Print Network [OSTI]

    Cummings, Molly E.

    ORIGINAL ARTICLE Evidence for selection on coloration in a Panamanian poison frog: a coalescent University, Durham, NC 27705, USA. ABSTRACT Aim The strawberry poison frog, Oophaga pumilio, has undergone in the strawberry poison frog. Keywords Aposematism, Bocas del Toro, coalescence, coloration, Dendrobates, Dendro

  6. Atmospheric ozone and colors of the Antarctic twilight sky

    E-Print Network [OSTI]

    Lee Jr., Raymond L.

    Atmospheric ozone and colors of the Antarctic twilight sky Raymond L. Lee, Jr.,1, * Wolfgang Meyer absorption at longer wavelengths by ozone's Chappuis bands. Because stratospheric ozone is greatly depleted correlations between ozone concentration and twilight colors. We also used a spectroradiometer at a midlatitude

  7. Multi-core and Many-core Shared-memory Parallel Raycasting Volume Rendering Optimization and Tuning

    SciTech Connect (OSTI)

    Howison, Mark

    2012-01-31

    Given the computing industry trend of increasing processing capacity by adding more cores to a chip, the focus of this work is tuning the performance of a staple visualization algorithm, raycasting volume rendering, for shared-memory parallelism on multi-core CPUs and many-core GPUs. Our approach is to vary tunable algorithmic settings, along with known algorithmic optimizations and two different memory layouts, and measure performance in terms of absolute runtime and L2 memory cache misses. Our results indicate there is a wide variation in runtime performance on all platforms, as much as 254% for the tunable parameters we test on multi-core CPUs and 265% on many-core GPUs, and the optimal configurations vary across platforms, often in a non-obvious way. For example, our results indicate the optimal configurations on the GPU occur at a crossover point between those that maintain good cache utilization and those that saturate computational throughput. This result is likely to be extremely difficult to predict with an empirical performance model for this particular algorithm because it has an unstructured memory access pattern that varies locally for individual rays and globally for the selected viewpoint. Our results also show that optimal parameters on modern architectures are markedly different from those in previous studies run on older architectures. And, given the dramatic performance variation across platforms for both optimal algorithm settings and performance results, there is a clear benefit for production visualization and analysis codes to adopt a strategy for performance optimization through auto-tuning. These benefits will likely become more pronounced in the future as the number of cores per chip and the cost of moving data through the memory hierarchy both increase.

  8. Passive-matrix-driven field-sequential-color displays Abstract --Passive-matrix-driven field-sequential-color (FSC) displays were successfully fabricated.

    E-Print Network [OSTI]

    Passive-matrix-driven field-sequential-color displays Y. W. Li L. Tan H. S. Kwok Abstract -- Passive-matrix-driven field-sequential-color (FSC) displays were successfully fabricated. It makes use of the display. Keywords -- Passive matrix, field-sequential color. 1 Introduction Field-sequential-color (FSC

  9. Journal of Pattern Recognition Research 1 (2006) 42-54 An Overview of Color Constancy Algorithms

    E-Print Network [OSTI]

    Koschan, Andreas

    2006-01-01

    Journal of Pattern Recognition Research 1 (2006) 42-54 An Overview of Color Constancy Algorithms of Tennessee, Knoxville. c 2006 JPRR. All rights reserved. #12;An Overview of Color Constancy Algorithms color

  10. Single-fiber multi-color pyrometry

    DOE Patents [OSTI]

    Small, IV, Ward; Celliers, Peter

    2004-01-27

    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.

  11. Single-fiber multi-color pyrometry

    DOE Patents [OSTI]

    Small, IV, Ward (Livermore, CA); Celliers, Peter (Berkeley, CA)

    2000-01-01

    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.

  12. Color stable manganese-doped phosphors

    DOE Patents [OSTI]

    Lyons, Robert Joseph; Setlur, Anant Achyut; Deshpande, Anirundha Rajendra; Grigorov, Ljudmil Slavchev

    2014-04-29

    A lighting apparatus capable of emitting white light includes a semiconductor light source; and a phosphor material radiationally coupled to the light source. The phosphor material includes a color-stable Mn.sup.+4 doped phosphor prepared by a process including 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.

  13. Scattering off the Color Glass Condensate

    E-Print Network [OSTI]

    Mäntysaari, Heikki

    2015-01-01

    In this thesis the Color Glass Condensate (CGC) framework, which describes quantum chromodynamics (QCD) at high energy, is applied to various scattering processes. Higher order corrections to the CGC evolution equations, known as the BK and JIMWLK equations, are also considered. It is shown that the leading order CGC calculations describe the experimental data from electron-proton deep inelastic scattering (DIS), proton-proton and proton-nucleus collisions. The initial condition for the BK evolution equation is obtained by performing a fit to deep inelastic scattering data. The fit result is used as an input to calculations of single particle spectra and nuclear suppression in proton-proton and proton-nucleus collisions, which are shown to be in agreement with RHIC and LHC measurements. In particular, the importance of a proper description of the nuclear geometry consistently with the DIS data fits is emphasized, as it results in a nuclear suppression factor $R_{pA}$ which is consistent with the available exp...

  14. Color--Magnitude Diagram and Luminosity Function of M4 Near the Hydrogen-Burning Limit

    E-Print Network [OSTI]

    Bedin, L R; King, I R; Piotto, G; Bedin, Luigi R.; Anderson, Jay; King, Ivan R.; Piotto, Giampaolo

    2001-01-01

    A proper-motion separation of M4 members from field stars, using deep HST observations separated by a time base-line of 5 years, allows us to study a pure sample of cluster main-sequence stars almost to the minimum mass for hydrogen burning. High-precision photometry shows how badly current theoretical models fail to reproduce the color-magnitude diagram of low-mass stars of moderate metallicity ([M/H] ~ -1). This inability of theory to reproduce the luminosity-radius relation casts doubt on the theoretical mass-luminosity relation, which is needed to convert the observed luminosity function (LF) into a mass function (MF), as well as to convert our locally determined LF into a global MF. To the extent that we trust theoretical M-L relations for such transformations, we obtain a flat MF from the LF, and some indication that theoretical masses might be too low at a given luminosity, near the H-burning limit.

  15. Color--Magnitude Diagram and Luminosity Function of M4 Near the Hydrogen-Burning Limit

    E-Print Network [OSTI]

    Luigi R. Bedin; Jay Anderson; Ivan R. King; Giampaolo Piotto

    2001-09-05

    A proper-motion separation of M4 members from field stars, using deep HST observations separated by a time base-line of 5 years, allows us to study a pure sample of cluster main-sequence stars almost to the minimum mass for hydrogen burning. High-precision photometry shows how badly current theoretical models fail to reproduce the color-magnitude diagram of low-mass stars of moderate metallicity ([M/H] ~ -1). This inability of theory to reproduce the luminosity-radius relation casts doubt on the theoretical mass-luminosity relation, which is needed to convert the observed luminosity function (LF) into a mass function (MF), as well as to convert our locally determined LF into a global MF. To the extent that we trust theoretical M-L relations for such transformations, we obtain a flat MF from the LF, and some indication that theoretical masses might be too low at a given luminosity, near the H-burning limit.

  16. Spin-one color superconductors: collective modes and effective Lagrangian

    E-Print Network [OSTI]

    Jin-yi Pang; Tomas Brauner; Qun Wang

    2010-10-11

    We investigate the collective excitations in spin-one color superconductors. We classify the Nambu--Goldstone modes by the pattern of spontaneous symmetry breaking, and then use the Ginzburg--Landau theory to derive their dispersion relations. These soft modes play an important role for the low-energy dynamics of the system such as the transport phenomena and hence are relevant for late-stage evolution of neutron stars. In the case of the color-spin-locking phase, we use a functional technique to obtain the low-energy effective action for the physical Nambu--Goldstone bosons that survive after gauging the color symmetry.

  17. The Rhetorics of Color-Blind Racism in Racefail 09 

    E-Print Network [OSTI]

    Reid, Robin Anne

    2010-09-01

    stream_source_info The Rhetorics of Color-Blind Racism in Racefail 09.ppt.txt stream_content_type text/plain stream_size 4013 Content-Encoding ISO-8859-1 stream_name The Rhetorics of Color-Blind Racism in Racefail 09.ppt....txt Content-Type text/plain; charset=ISO-8859-1 The Rhetorics of Color-Blind Racism in Racefail 09 Presented at: Amazing, Fantastic, Weird: Science Fiction Studies in Texas Symposium April 15, 2010 Eduardo Bonilla-Silva Schema Anything But Race: It?s...

  18. THE ALBEDO-COLOR DIVERSITY OF TRANSNEPTUNIAN OBJECTS

    SciTech Connect (OSTI)

    Lacerda, Pedro; Rengel, Miriam [Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, D-37077 Göttingen (Germany); Fornasier, Sonia; Lellouch, Emmanuel; Delsanti, Audrey [LESIA-Observatoire de Paris, CNRS, UPMC, Université Paris-Diderot, 5 place Jules Janssen, F-92195 Meudon (France); Kiss, Csaba [Konkoly Observatory, MTA CSFK, 1121 Budapest, Konkoly Th. M. út 15-17 (Hungary); Vilenius, Esa; Müller, Thomas [Max-Planck-Institut für Extraterrestrische Physik, Postfach 1312, Giessenbachstrasse, D-85741 Garching (Germany); Santos-Sanz, Pablo; Duffard, René [Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía, s/n. E-18008 Granada (Spain); Stansberry, John [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Guilbert-Lepoutre, Aurélie [European Space Agency/ESTEC, Keplerlaan 1, 2201-AZ Noordwijk (Netherlands)

    2014-09-20

    We analyze albedo data obtained using the Herschel Space Observatory that reveal the existence of two distinct types of surface among midsized trans-Neptunian objects. A color-albedo diagram shows two large clusters of objects, one redder and higher albedo and another darker and more neutrally colored. Crucially, all objects in our sample located in dynamically stable orbits within the classical Kuiper Belt region and beyond are confined to the bright red group, implying a compositional link. Those objects are believed to have formed further from the Sun than the dark neutral bodies. This color-albedo separation is evidence for a compositional discontinuity in the young solar system.

  19. Jet Dipolarity: Top Tagging with Color Flow

    SciTech Connect (OSTI)

    Hook, Anson; Jankowiak, Martin; /SLAC /Stanford U., Phys. Dept.; Wacker, Jay G.; /SLAC

    2011-08-12

    A new jet observable, dipolarity, is introduced that can distinguish whether a pair of subjets arises from a color singlet source. This observable is incorporated into the HEPTopTagger and is shown to improve discrimination between top jets and QCD jets for moderate to high p{sub T}. The impressive resolution of the ATLAS and CMS detectors means that a typical QCD jet at the LHC deposits energy in {Omicron}(10-100) calorimeter cells. Such fine-grained calorimetry allows for jets to be studied in much greater detail than previously, with sophisticated versions of current techniques making it possible to measure more than just the bulk properties of jets (e.g. event jet multiplicities or jet masses). One goal of the LHC is to employ these techniques to extend the amount of information available from each jet, allowing for a broader probe of the properties of QCD. The past several years have seen significant progress in developing such jet substructure techniques. A number of general purpose tools have been developed, including: (i) top-tagging algorithms designed for use at both lower and higher p{sub T} as well as (ii) jet grooming techniques such as filtering, pruning, and trimming, which are designed to improve jet mass resolution. Jet substructure techniques have also been studied in the context of specific particle searches, where they have been shown to substantially extend the reach of traditional search techniques in a wide variety of scenarios, including for example boosted Higgses, neutral spin-one resonances, searches for supersymmetry, and many others. Despite these many successes, however, there is every reason to expect that there remains room for refinement of jet substructure techniques.

  20. Scattering off the Color Glass Condensate

    E-Print Network [OSTI]

    Heikki Mäntysaari

    2015-06-24

    In this thesis the Color Glass Condensate (CGC) framework, which describes quantum chromodynamics (QCD) at high energy, is applied to various scattering processes. Higher order corrections to the CGC evolution equations, known as the BK and JIMWLK equations, are also considered. It is shown that the leading order CGC calculations describe the experimental data from electron-proton deep inelastic scattering (DIS), proton-proton and proton-nucleus collisions. The initial condition for the BK evolution equation is obtained by performing a fit to deep inelastic scattering data. The fit result is used as an input to calculations of single particle spectra and nuclear suppression in proton-proton and proton-nucleus collisions, which are shown to be in agreement with RHIC and LHC measurements. In particular, the importance of a proper description of the nuclear geometry consistently with the DIS data fits is emphasized, as it results in a nuclear suppression factor $R_{pA}$ which is consistent with the available experimental data. In addition to single particle production, the correlations between two hadrons at forward rapidity are computed. The RHIC measurements are shown to be naturally explainable in the CGC framework, and the previous CGC calculations are improved by including the so called inelastic and double parton scattering contributions. This improvement is shown to be required in order to get results compatible with the experimentally measured correlations. Exclusive vector meson production, which can be a powerful tool to study the gluonic structure of nuclei at small Bjorken-$x$, is also considered. The cross sections are calculated within the CGC framework in the context of a future electron-ion collider. In particular, the cross section for incoherent diffractive vector meson production is derived and a centrality estimator for this process is proposed.

  1. Interactive musical visualization based on emotional and color theory 

    E-Print Network [OSTI]

    Bowens, Karessa Natee

    2009-05-15

    Influenced by synesthesia, the creators of such ‘visual musics’ as abstract art, color organs, abstract film, and most recently visualizers, have attempted to illustrate correspondences between the senses. This thesis ...

  2. Computer rotoscoping with the aid of color recognition

    E-Print Network [OSTI]

    Allen, Rebecca A

    1980-01-01

    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", ...

  3. Inhomogeneous color superconductivity and the cooling of compact stars

    E-Print Network [OSTI]

    M. Ruggieri

    2007-04-13

    In this talk I discuss the inhomogeneous (LOFF) color superconductive phases of Quantum Chromodynamics (QCD). In particular, I show the effect of a core of LOFF phase on the cooling of a compact star.

  4. Hair treatment process providing dispersed colors by light diffraction

    DOE Patents [OSTI]

    Lamartine, Bruce Carvell; Orler, E. Bruce; Sutton, Richard Matthew Charles; Song, Shuangqi

    2014-11-11

    Hair was coated with polymer-containing fluid and then hot pressed to form a composite of hair and a polymer film imprinted with a nanopattern. Polychromatic light incident on the nanopattern is diffracted into dispersed colored light.

  5. Graph Coloring on a Coarse Grained Multiprocessor (extended abstract)

    E-Print Network [OSTI]

    Gebremedhin, Assefaw Hadish

    Graph Coloring on a Coarse Grained Multiprocessor (extended abstract) Assefaw Hadish Gebremedhin1 Allwright et al. (1995). However, in a recent result, Gebremedhin and Manne (1999a, 1999b) present

  6. Text-Alternative Version: LED Color Stability Webinar

    Broader source: Energy.gov [DOE]

    Michael Royer: All right, welcome ladies and gentleman. I'm Michael Royer of Pacific Northwest National Laboratory, and I'd like to welcome you to today's webinar on LED Color Stability, Ten...

  7. Topological color codes and two-body quantum lattice Hamiltonians

    E-Print Network [OSTI]

    Kargarian, M.

    Topological color codes are among the stabilizer codes with remarkable properties from the quantum information perspective. In this paper, we construct a lattice, the so-called ruby lattice, with coordination number 4 ...

  8. How ocean color can steer Pacific tropical cyclones

    E-Print Network [OSTI]

    Gnanadesikan, Anand

    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 ...

  9. Hair treatment process providing dispersed colors by light diffraction

    DOE Patents [OSTI]

    Lamartine, Bruce Carvell; Orler, E. Bruce; Sutton, Richard Matthew Charles; Song, Shuangqi

    2013-12-17

    Hair was coated with polymer-containing fluid and then hot pressed to form a composite of hair and a polymer film imprinted with a nanopattern. Polychromatic light incident on the nanopattern is diffracted into dispersed colored light.

  10. NLO Evolution of Color Dipoles in N = 4 SYM

    E-Print Network [OSTI]

    Giovanni A. Chirilli

    2008-11-21

    The small-$x_B$ deep inelastic scattering in the saturation region is governed by the non-linear evolution of Wilson-line operators. In the leading logarithmic approximation it is given by the BK equation for the evolution of color dipoles. I discuss recent calculation of the next-to-leading order evolution of color dipoles in QCD and ${\\cal N}=4$ SYM.

  11. Low voltage solid-state lateral coloration electrochromic device

    DOE Patents [OSTI]

    Tracy, C.E.; Benson, D.K.; Ruth, M.R.

    1984-12-21

    A solid-state transition metal oxide device comprising a plurality of layers having a predisposed orientation including an electrochromic oxide layer. Conductive material including anode and cathode contacts is secured to the device. Coloration is actuated within the electrochromic oxide layer after the application of a predetermined potential between the contacts. The coloration action is adapted to sweep or dynamically extend across the length of the electrochromic oxide layer.

  12. Low voltage solid-state lateral coloration electrochromic device

    DOE Patents [OSTI]

    Tracy, C. Edwin (Golden, CO); Benson, David K. (Golden, CO); Ruth, Marta R. (Boulder, CO)

    1987-01-01

    A solid-state transition metal oxide device comprising a plurality of lay having a predisposed orientation including an electrochromic oxide layer. Conductive material including anode and cathode contacts is secured to the device. Coloration is actuated within the electrochromic oxide layer after the application of a predetermined potential between the contacts. The coloration action is adapted to sweep or dynamically extend across the length of the electrochromic oxide layer.

  13. Color structure for soft gluon resummation - a general recipe

    E-Print Network [OSTI]

    Malin Sjodahl

    2009-07-31

    A strategy for calculating the color structure needed for soft gluon resummation for processes with any number of colored partons is introduced using a N_c --> infinity inspired basis. In this basis a general formalism can be found at the same time as the calculations are simplified. The advantages are illustrated by recalculating the soft anomalous dimension matrix for the processes gg --> gg, q\\qbar --> q \\qbar g and q\\qbar --> ggg.

  14. Evaluating undeveloped urban forest resources using color infrared imagery 

    E-Print Network [OSTI]

    Snelgrove, Robert Todd

    2002-01-01

    EVALUATING UNDEVELOPED URBAN FOREST RESOURCES USING COLOR INFRARED IMAGERY A Thesis by ROBERT TODD SNELGROVE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 2002 Major Subject: Forestry EVALUATING UNDEVELOPED URBAN FOREST RESOURCES USING COLOR INFRARED IMAGERY A Thesis by ROBERT TODD SNELGROVE Submitted to Texas A&M University in partial fulfillment of the requirements...

  15. Physics of the Structural Color on the Skin of Cephalopods 

    E-Print Network [OSTI]

    Gao, Meng 1981-

    2012-10-30

    by leucophore and iridophore cells, are important for cephalopod camou age; however, their scattering properties have not been very well studied. These colors are mainly due to the scattering of the speci c small scatterers inside of the cell. In this work we.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Modeled cephalpod skin with the same sequence of cells as shown in the electron micrograph: chromatophore (a), iridophore (b), and leucophore (c)). The structural color is produced by iridophore (b) and leucophore (c...

  16. Twin-tailed fail-over for fileservers maintaining full performance in the presence of a failure

    DOE Patents [OSTI]

    Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY)

    2008-02-12

    A method for maintaining full performance of a file system in the presence of a failure is provided. The file system having N storage devices, where N is an integer greater than zero and N primary file servers where each file server is operatively connected to a corresponding storage device for accessing files therein. The file system further having a secondary file server operatively connected to at least one of the N storage devices. The method including: switching the connection of one of the N storage devices to the secondary file server upon a failure of one of the N primary file servers; and switching the connections of one or more of the remaining storage devices to a primary file server other than the failed file server as necessary so as to prevent a loss in performance and to provide each storage device with an operating file server.

  17. Journal of Pattern Recognition Research 1 (2006) 42-54 An Overview of Color Constancy Algorithms

    E-Print Network [OSTI]

    Abidi, Mongi A.

    2006-01-01

    , pp. 42-54, May 2006.219 #12;An Overview of Color Constancy Algorithms color constancy problemJournal of Pattern Recognition Research 1 (2006) 42-54 An Overview of Color Constancy Algorithms, "An Overview of Color Constancy Algorithms," Journal of Pattern Recognition Research, Vol. 1, No. 1

  18. I:\\Orientation\\Emergency Prepardeness\\2012 07 18 Orientation To The Emergency Color Codes.Docx Page 1 Orientation to the Emergency Color Codes, Edmonton Clinic

    E-Print Network [OSTI]

    MacMillan, Andrew

    handlers will shut down and staffI:\\Orientation\\Emergency Prepardeness\\2012 07 18 Orientation To The Emergency Color Codes.Docx Page 1 Orientation to the Emergency Color Codes, Edmonton Clinic Code Blue (cardiac/respiratory arrest

  19. Sub-coloring and Hypo-coloring Interval Graphs Rajiv Gandhi1, Bradford Greening, Jr.1, Sriram Pemmaraju2, and Rajiv Raman3

    E-Print Network [OSTI]

    Gandhi, Rajiv C.

    Sub-coloring and Hypo-coloring Interval Graphs Rajiv Gandhi1, Bradford Greening, Jr.1, Sriram, Iowa 52242. E-mail: sriram@cs.uiowa.edu. 3 Max-Planck Institute for Informatik, Saarbr¨ucken, Germany

  20. Fixing Failed States

    E-Print Network [OSTI]

    Yoo, John

    2010-01-01

    Mauritania 30. Nigeria 31. Liberia 32. Myanmar 33. SomaliaThe World Bank considers Liberia, Myanmar, Somalia, and theRepublic of the Congo, Liberia, Sierra Leone, and Sudan. He

  1. Fixing Failed States

    E-Print Network [OSTI]

    Yoo, John

    2010-01-01

    Republic of the Congo 6. Iraq 7. Afghanistan 8. Centralwars in Afghanistan and Iraq has spent up to $500 billion aMilitary Adventure in Iraq 97 (2006). An army briefing noted

  2. OPTICAL COLORS OF INTRACLUSTER LIGHT IN THE VIRGO CLUSTER CORE

    SciTech Connect (OSTI)

    Rudick, Craig S.; Mihos, J. Christopher; Harding, Paul; Morrison, Heather L. [Department of Astronomy, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106 (United States); Feldmeier, John J. [Department of Physics and Astronomy, Youngstown State University, Youngstown, OH 44555 (United States); Janowiecki, Steven, E-mail: csr10@case.ed [Department of Astronomy, Indiana University, 727 East 3rd Street, Bloomington, IN 47405 (United States)

    2010-09-01

    We continue our deep optical imaging survey of the Virgo cluster using the CWRU Burrell Schmidt telescope by presenting B-band surface photometry of the core of the Virgo cluster in order to study the cluster's intracluster light (ICL). We find ICL features down to {mu}{sub B} {approx}29 mag arcsec{sup -2}, confirming the results of Mihos et al., who saw a vast web of low surface brightness streams, arcs, plumes, and diffuse light in the Virgo cluster core using V-band imaging. By combining these two data sets, we are able to measure the optical colors of many of the cluster's low surface brightness features. While much of our imaging area is contaminated by galactic cirrus, the cluster core near the cD galaxy, M87, is unobscured. We trace the color profile of M87 out to over 2000'', and find a blueing trend with radius, continuing out to the largest radii. Moreover, we have measured the colors of several ICL features which extend beyond M87's outermost reaches and find that they have similar colors to the M87's halo itself, B - V {approx}0.8. The common colors of these features suggest that the extended outer envelopes of cD galaxies, such as M87, may be formed from similar streams, created by tidal interactions within the cluster, that have since dissolved into a smooth background in the cluster potential.

  3. Role of Salvage Radiation Therapy for Patients With Relapsed or Refractory Hodgkin Lymphoma Who Failed Autologous Stem Cell Transplant

    SciTech Connect (OSTI)

    Goda, Jayant S.; Massey, Christine; Kuruvilla, John; Gospodarowicz, Mary K.; Wells, Woodrow; Hodgson, David C.; Sun, Alexander; Keating, Armand; Crump, Michael; Tsang, Richard W.

    2012-11-01

    Purpose: To analyze, through chart review, the efficacy of salvage radiation therapy (sRT) for relapsed or progressive Hodgkin lymphoma (HL) patients who failed autologous stem cell transplant (ASCT). Patients and Methods: Among 347 patients with recurrent/refractory HL who received ASCT from 1986-2006, 163 had post-ASCT progression or relapse. Of these, 56 received sRT and form the basis of this report. Median age at sRT was 30 years (range, 17-59 years). Disease was confined to lymph nodes in 27 patients, whereas 24 had both nodal and extranodal disease. Salvage radiation therapy alone was given in 34 patients (61%), and sRT plus chemotherapy was given in 22 (39%). Median interval from ASCT to sRT was 0.8 years (range, 0.1-5.6 years). The median dose was 35 Gy (range, 8-40.3 Gy). The sRT technique was extended-field in 14 patients (25%) and involved-field in 42 (75%). Results: The median follow-up from sRT was 31.3 months (range, 0.2-205.5 months). Overall response rate was 84% (complete response: 36%; partial response: 48%). The median overall survival was 40.8 months (95% confidence interval, 34.2-56.3 months). The 5-year overall survival was 29% (95% confidence interval, 14%-44%). The 2-year progression-free survival (PFS) was 16%; the 2-year local PFS was 65%, whereas the 2-year systemic PFS was 17%. The 1-year PFS was higher in patients in whom all diseased sites were irradiated (49%) compared with those in whom only the symptomatic site was treated (22%, P=.07). Among 20 alive patients, 5 were disease free (at 6.4, 6.8, 7.4, 7.9, and 17.1 years). Conclusion: For patients with HL who fail ASCT, a selective use of RT provides a durable local control rate of 65% at 2 years and should be considered as part of the standard management plan for the palliation of incurable HL. Occasionally irradiation of truly localized disease can lead to long-term survival.

  4. Cooling of Neutron Stars with Color Superconducting Quark Cores

    E-Print Network [OSTI]

    David Blaschke; Dmitri N. Voskresensky; Hovik Grigorian

    2005-11-03

    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_sun. We study the cooling of these objects in isolation for different values of the gravitational mass and argue that, if the quark matter phase would allow unpaired quarks, the corresponding hybrid stars would cool too fast. The comparison with observational data puts tight constraints on possible color superconducting quark matter phases. Possible candidates with diquark gaps of the order of 10 keV - 1 MeV such as the "2SC+X" and the color spin locking (CSL) phase are presented.

  5. Color gauge invariance in the Drell-Yan process

    E-Print Network [OSTI]

    Daniel Boer; P. J. Mulders

    1999-11-22

    We consider the color gauge invariance of a factorized description of the Drell-Yan process cross section. In particular, we focus on the next-to-leading twist contributions for polarized scattering and on the cross section differential in the transverse momentum of the lepton pair in the region where the transverse momentum is small compared to the hard scale. The hadron tensor is expressed in terms of manifestly color gauge invariant, nonlocal operator matrix elements and a color gauge invariant treatment of soft gluon poles is given. Also, we clarify the discrepancy between two published results for a single spin asymmetry in the Drell-Yan cross section. This asymmetry arises if such a soft gluon pole is present in a specific twist-three hadronic matrix element.

  6. Multi-Projector Color Structured-Light Vision

    E-Print Network [OSTI]

    Je, Changsoo; Lee, Sang Wook

    2015-01-01

    Research interest in rapid structured-light imaging has grown increasingly for the modeling of moving objects, and a number of methods have been suggested for the range capture in a single video frame. The imaging area of a 3D object using a single projector is restricted since the structured light is projected only onto a limited area of the object surface. Employing additional projectors to broaden the imaging area is a challenging problem since simultaneous projection of multiple patterns results in their superposition in the light-intersected areas and the recognition of original patterns is by no means trivial. This paper presents a novel method of multi-projector color structured-light vision based on projector-camera triangulation. By analyzing the behavior of superposed-light colors in a chromaticity domain, we show that the original light colors cannot be properly extracted by the conventional direct estimation. We disambiguate multiple projectors by multiplexing the orientations of projector pattern...

  7. THE UBV(RI){sub C} COLORS OF THE SUN

    SciTech Connect (OSTI)

    Ramirez, I.; Michel, R.; Schuster, W. J.; Sefako, R.; Van Wyk, F.; Tucci Maia, M.; Melendez, J.; Castilho, B. V.

    2012-06-10

    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.

  8. Induced color in ostracode shells: an experimental study

    E-Print Network [OSTI]

    Kontrovitz, M.; Ainsworth, N. R.; Burnett, R. D.; Slack, J. M.

    1992-08-01

    /1 and 5Y 7/2, which are both named light gray even though 5YR 7/ 1 is redder and the less color saturated of the two. It is suggested that the reader will find it useful to have the color and name charts at hand while reading this paper. Shells were placed... on a Munsell standard, gray masking card and viewed through a Wild M-5 binocular, stereo- microscope set at a magnification of 20X. The stage was illuminated by two American Optical model 651 lamps, each set at intensity level 2, about 15 cm from...

  9. Stress-free BCS pairing in color superconductors is impossible

    E-Print Network [OSTI]

    Krishna Rajagopal; Andreas Schmitt

    2006-10-26

    Cold, asymptotically dense three-flavor quark matter is in the color-flavor locked (CFL) phase, in which all quarks pair in a particularly symmetric fashion. At smaller densities, taking into account a nonzero strange quark mass and electric and color neutrality, the CFL phase requires pairing of quarks with mismatched Fermi momenta. We present a classification of all other possible, less symmetric, pairing patterns and prove that none of them can avoid this mismatch. This result suggests unconventional, e.g., spatially inhomogeneous, superconducting phases for moderate densities.

  10. A Two-ribbon White-light Flare Associated with a Failed Solar Eruption Observed by ONSET, SDO, and IRIS

    E-Print Network [OSTI]

    Cheng, X; Ding, M D; Liu, K; Chen, P F; Fang, C; Liu, Y D

    2015-01-01

    Two-ribbon brightenings are one of the most remarkable characteristics of an eruptive solar flare and are often used for predicting the occurrence of coronal mass ejections (CMEs). Nevertheless, it was called in question recently whether all two-ribbon flares are eruptive. In this paper, we investigate a two ribbon-like white-light (WL) flare that is associated with a failed magnetic flux rope (MFR) eruption on 2015 January 13, which has no accompanying CME in the WL coronagraph. Observations by \\textit{Optical and Near-infrared Solar Eruption Tracer} and \\textit{Solar Dynamics Observatory} reveal that, with the increase of the flare emission and the acceleration of the unsuccessfully erupting MFR, two isolated kernels appear at the WL 3600 {\\AA} passband and quickly develop into two elongated ribbon-like structures. The evolution of the WL continuum enhancement is completely coincident in time with the variation of \\textit{Fermi} hard X-ray 26--50 keV flux. Increase of continuum emission is also clearly visi...

  11. Analysis of failed and nickel-coated 3093 beam clamp components at the East Tennessee Technology Park (ETTP).

    SciTech Connect (OSTI)

    Singh, D.; Pappacena, K.; Gaviria, J.; Burtsteva, T.; Nuclear Engineering Division

    2010-10-11

    The U.S. Department of Energy and its contractor, Bechtel Jacobs Company (BJC), are undertaking a major effort to clean up the former gaseous diffusion facility (K-25) located in Oak Ridge, TN. The decontamination and decommissioning activities require systematic removal of contaminated equipment and machinery followed by demolition of the buildings. As part of the cleanup activities, a beam clamp, used for horizontal life lines (HLLs) for fall protection, was discovered to be fractured during routine inspection. The beam clamp (yoke and D-ring) was a component in the HLL system purchased from Reliance Industries LLC. Specifically, the U-shaped stainless steel yoke of the beam clamp failed in a brittle mode at under less than 10% of the rated design capacity of 14,500 lb. The beam clamp had been in service for approximately 16 months. Bechtel Jacobs approached Argonne National Laboratory to assist in identifying the root cause of the failure of the beam clamp. The objectives of this study were to (1) review the prior reports and documents on the subject, (2) understand the possible failure mechanism(s) that resulted in the failed beam clamp components, (3) recommend approaches to mitigate the failure mechanism(s), and (4) evaluate the modified beam clamp assemblies. Energy dispersive x-ray analysis and chemical analysis of the corrosion products on the failed yoke and white residue on an in-service yoke indicated the presence of zinc, sulfur, and calcium. Analysis of rainwater in the complex, as conducted by BJC, indicated the presence of sulfur and calcium. It was concluded that, as a result of galvanic corrosion, zinc from the galvanized components of the beam clamp assembly (D-ring) migrated to the corroded region in the presence of the rainwater. Under mechanical stress, the corrosion process would have accelerated, resulting in the catastrophic failure of the yoke. As suggested by Bechtel Jacobs personnel, hydrogen embrittlement as a consequence of corrosion was also explored as a failure mechanism. Corroded and failed yoke samples had hydrogen concentrations of 20-60 ppm. However, the hydrogen content reduced to 4-11 ppm (similar to baseline as-received yoke samples) when the corrosion products were polished off. The hydrogen content in the scraped off corrosion product powders was >7000 ppm. These results indicate that hydrogen is primarily present in the corrosion products and not in the underlying steel. Rockwell hardness values on the corroded yoke and D-rings were R{sub c} {approx} 41-46. It was recommended to the beam clamp manufacturer that the beam clamp components be annealed to reduce the hardness values so that they are less susceptible to brittle failure. Upon annealing, hardness values of the beam clamp components reduced to R{sub c} {approx} 25. Several strategies were recommended and put in place to mitigate failure of the beam clamp components: (a) maintain hardness levels of both yokes and D-rings at R{sub c} < 35, (b) coat the yoke and D-rings with a dual coating of nickel (with 10% phosphorus) to delay corrosion and aluminum to prevent galvanic corrosion since it is more anodic to zinc, and (c) optimize coating thicknesses for nickel and aluminum while maintaining the physical integrity of the coatings. Evaluation of the Al- and Ni-coated yoke and D-ring specimens indicated they appear to have met the recommendations. Average hardness values of the dual-coated yokes were R{sub c} {approx} 25-35. Hardness values of dual-coated D-ring were R{sub c} {approx} 32. Measured average coating thicknesses for the aluminum and nickel coatings for yoke samples were 22 {micro}m (0.9 mils) and 80 {micro}m (3 mils), respectively. The D-rings also showed similar coating thicknesses. Microscopic examination showed that the aluminum coating was well bonded to the underlying nickel coating. Some observed damage was believed to be an artifact of the cutting-and-polishing steps during sample preparation for microscopy.

  12. SHADOW IDENTIFICATION AND CLASSIFICATION USING INVARIANT COLOR MODELS

    E-Print Network [OSTI]

    Cavallaro, Andrea

    SHADOW IDENTIFICATION AND CLASSIFICATION USING INVARIANT COLOR MODELS Elena Salvador, Andrea in digital images. The proce- dure is divided into two levels: first, shadow candidate regions are extracted of the classification stage. Experimental results show that the method succeeds in detecting and classifying shadows

  13. Neurogeometry of color vision David Alleysson, David Meary

    E-Print Network [OSTI]

    Alleysson, David

    the source of color vision, the cones' are also the primary source of spatial information. The cones and neuron dynamics are used to model the representation of forms in the primary visual cortex, V1 how achromatic information could be estimated from the sparse chromatic sampling provided by the cone

  14. Effects of Storage Container Color and Shading on Water Temperature 

    E-Print Network [OSTI]

    Clayton, James Brent

    2012-07-16

    of the middle storage container block ........................................................................................................... 16 5 Mean water temperature inside storage containers painted with different colors kept at varying... of every organism together, while giving that organism flexibility and structure. Water is the universal solvent, carrying oxygen, nutrients, and other important chemicals needed by organisms. Water moderates the earth?s temperature, allowing life...

  15. POSITION TITLE: Color Chemist REPORTS TO: Laboratory Management

    E-Print Network [OSTI]

    Salvaggio, Carl

    of coatings color formulations. Utilizes working knowledge of raw materials to analyze and formulate a wide. Experiments with raw materials, processing techniques, and formulations in creative, non. Review current formulas and new raw materials for possible cost reduction or process improvement. 7

  16. Evidence for selection on coloration in a Panamanian poison frog

    E-Print Network [OSTI]

    University, Durham, NC 27705, USA. ABSTRACT Aim The strawberry poison frog, Oophaga pumilio, has undergone in the strawberry poison frog. Keywords Aposematism, Bocas del Toro, coalescence, coloration, Dendrobates, Dendro in vertebrates occurs in the Bocas del Toro archipelago in western Panama, where the strawberry poison frog

  17. Progress and Poverty: An Inquiry into Color Appearance Modeling

    E-Print Network [OSTI]

    Fairchild, Mark D.

    Progress and Poverty: An Inquiry into Color Appearance Modeling and Increase of Want with Increase and Poverty ... #12;Progress and Poverty: An Inquiry into the Cause of Industrial Depressions and of Increase of Want with Increase of Wealth: The Remedy Henry George, 1879 #12;Progress and Poverty by Henry George

  18. Factors affecting the color of corn tortillas and tortilla chips 

    E-Print Network [OSTI]

    Mireles, Raquel C

    1995-01-01

    of equilibration on chip color. White dry masa flour (1.2% sucrose, 2.3% free amino groups and 1.2% phenols) for tortilla chips was blended with different concentrations and combinations of glucose, lysine and ferulic acid. Calcium oxide and citric acid were used...

  19. Multiplicative colored noise in linearized models of biochemical reaction networks

    E-Print Network [OSTI]

    Ingalls, Brian

    Multiplicative colored noise in linearized models of biochemical reaction networks Matthew Scott is often modeled by white noise, though results obtained in this fashion tend to overstate the effect to a model of bacterial chemotaxis with multiple explicit noise sources. The frequency response

  20. Multivariate Mathematical Morphology applied to Color Image Analysis

    E-Print Network [OSTI]

    Lefèvre, Sébastien

    Chapter 10 Multivariate Mathematical Morphology applied to Color Image Analysis 10.1. Introduction multivariate morphological operators, none of them has yet been widely accepted. Chapter written by E. APTOULA and S. LEFÃ?VRE. 303 #12;304 Multivariate Image Processing The lexicographical ordering is certainly

  1. Colorization using Optimization Anat Levin Dani Lischinski Yair Weiss

    E-Print Network [OSTI]

    these regions across im- age sequences. Neither of these tasks can be performed reliably in practice-consuming, and expensive task. In this paper we present a simple colorization method that re- quires neither precise image tech- nique that requires neither precise manual segmentation, nor accu- rate tracking. The technique

  2. Nuclear DVCS within the high energy QCD color dipole formalism

    E-Print Network [OSTI]

    M. V. T. Machado

    2009-05-27

    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.

  3. A HYPOTHESIS FOR THE COLOR DIVERSITY OF THE KUIPER BELT

    SciTech Connect (OSTI)

    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: mbrown@caltech.edu [NASA Dryden Aircraft Operations Facility, Palmdale, CA 93550 (United States)

    2011-10-01

    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.

  4. Paint Inspired Color Mixing and Compositing for Visualization Nathan Gossett

    E-Print Network [OSTI]

    Chen, Baoquan

    Paint Inspired Color Mixing and Compositing for Visualization Nathan Gossett University of Minnesota at Twin Cities Baoquan Chen University of Minnesota at Twin Cities Figure 1: Photographs of paint mixing. Left: A photograph of Red, Yellow and Blue paint mixing together. (The white spots are produced

  5. Color Appearance and the Digital Imaging Pipeline Brian A. Wandell

    E-Print Network [OSTI]

    Wandell, Brian A.

    Color Appearance and the Digital Imaging Pipeline Brian A. Wandell Psychology Department Stanford reproduction pipeline, spanning image capture, processing and display, must be designed to account for the properties of the human observer. In designing an image pipeline, three principles of human vision

  6. Supernova relic neutrinos and the supernova rate problem: Analysis of uncertainties and detectability of ONeMg and failed supernovae

    SciTech Connect (OSTI)

    Mathews, Grant J. [Center for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States); Hidaka, Jun; Kajino, Toshitaka; Suzuki, Jyutaro [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)

    2014-08-01

    Direct measurements of the core collapse supernova rate (R{sub SN}) in the redshift range 0 ? z ? 1 appear to be about a factor of two smaller than the rate inferred from the measured cosmic massive star formation rate (SFR). This discrepancy would imply that about one-half of the massive stars that have been born in the local observed comoving volume did not explode as luminous supernovae. In this work, we explore the possibility that one could clarify the source of this 'supernova rate problem' by detecting the energy spectrum of supernova relic neutrinos with a next generation 10{sup 6} ton water ?erenkov detector like Hyper-Kamiokande. First, we re-examine the supernova rate problem. We make a conservative alternative compilation of the measured SFR data over the redshift range 0 ?z ? 7. We show that by only including published SFR data for which the dust obscuration has been directly determined, the ratio of the observed massive SFR to the observed supernova rate R{sub SN} has large uncertainties ?1.8{sub ?0.6}{sup +1.6} and is statistically consistent with no supernova rate problem. If we further consider that a significant fraction of massive stars will end their lives as faint ONeMg SNe or as failed SNe leading to a black hole remnant, then the ratio reduces to ?1.1{sub ?0.4}{sup +1.0} and the rate problem is essentially solved. We next examine the prospects for detecting this solution to the supernova rate problem. We first study the sources of uncertainty involved in the theoretical estimates of the neutrino detection rate and analyze whether the spectrum of relic neutrinos can be used to independently identify the existence of a supernova rate problem and its source. We consider an ensemble of published and unpublished core collapse supernova simulation models to estimate the uncertainties in the anticipated neutrino luminosities and temperatures. We illustrate how the spectrum of detector events might be used to establish the average neutrino temperature and constrain SN models. We also consider supernova ?-process nucleosynthesis to deduce constraints on the temperature of the various neutrino flavors. We study the effects of neutrino oscillations on the detected neutrino energy spectrum and also show that one might distinguish the equation of state (EoS) as well as the cause of the possible missing luminous supernovae from the detection of supernova relic neutrinos. We also analyze a possible enhanced contribution from failed supernovae leading to a black hole remnant as a solution to the supernova rate problem. We conclude that indeed it might be possible (though difficult) to measure the neutrino temperature, neutrino oscillations, and the EoS and confirm this source of missing luminous supernovae by the detection of the spectrum of relic neutrinos.

  7. ON A POSSIBLE SIZE/COLOR RELATIONSHIP IN THE KUIPER BELT

    SciTech Connect (OSTI)

    Pike, R. E.; Kavelaars, J. J., E-mail: repike@uvic.ca [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)

    2013-10-01

    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.

  8. The Carnegie Supernova Project: Intrinsic colors of type Ia supernovae

    SciTech Connect (OSTI)

    Burns, Christopher R.; Persson, S. E.; Freedman, Wendy L.; Madore, Barry F. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Stritzinger, Maximilian; Contreras, Carlos [Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark); Phillips, M. M.; Hsiao, E. Y.; Boldt, Luis; Campillay, Abdo; Castellón, Sergio; Morrell, Nidia; Salgado, Francisco [Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino, Casilla 601 (Chile); Folatelli, Gaston [Kavli Institute for the Physics and Mathematics of the Universe, Todai Institutes for Advanced Study, the University of Tokyo, 277-8583 Kashiwa (Japan); Suntzeff, Nicholas B. [George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, Department of Physics and Astronomy, College Station, TX 77843 (United States)

    2014-07-01

    We present an updated analysis of the intrinsic colors of Type Ia supernova (SNe Ia) using the latest data release of the Carnegie Supernova Project. We introduce a new light-curve parameter very similar to stretch that is better suited for fast-declining events, and find that these peculiar types can be seen as extensions to the population of 'normal' SNe Ia. With a larger number of objects, an updated fit to the Lira relation is presented along with evidence for a dependence on the late-time slope of the B – V light-curves with stretch and color. Using the full wavelength range from u to H band, we place constraints on the reddening law for the sample as a whole and also for individual events/hosts based solely on the observed colors. The photometric data continue to favor low values of R{sub V} , though with large variations from event to event, indicating an intrinsic distribution. We confirm the findings of other groups that there appears to be a correlation between the derived reddening law, R{sub V} , and the color excess, E(B – V), such that larger E(B – V) tends to favor lower R{sub V} . The intrinsic u-band colors show a relatively large scatter that cannot be explained by variations in R{sub V} or by the Goobar power-law for circumstellar dust, but rather is correlated with spectroscopic features of the supernova and is therefore likely due to metallicity effects.

  9. Machine Design -2 The figure below shows a picture of the splined end of a failed half-shaft. The fatigue failure occurred at the

    E-Print Network [OSTI]

    Battaglia, Francine

    Machine Design - 2 The figure below shows a picture of the splined end of a failed half-shaft. The fatigue failure occurred at the snap-ring groove. The half-shaft transmits engine torque on acceleration = +1617 in-lbf. The half-shaft material is a heat-treated, case-hardened 4340 steel, Sy = 234 kpsi, Sut

  10. P-188 / H. C. Huang P-188: Single-Panel Spatial-Color and Sequential-Color LCOS Projectors

    E-Print Network [OSTI]

    emitting diodes (LEDs). But as the fast development of power LEDs, the prospect of using LEDs as light LED Lamps H. C. Huang, K. Y. Leung, and H. S. Kwok Centre for Display Research, Hong Kong University using LED lamps. The 0.59" sequential-color LCOS microdisplay with integrated frame buffers can deliver

  11. An eye for vulgarity : how MoMA saw color through Wild Bill's lens

    E-Print Network [OSTI]

    Kivlan, Anna Karrer

    2007-01-01

    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 ...

  12. A Comparison of Interactive Color Specification Systems for Human-Computer Interfaces 

    E-Print Network [OSTI]

    Wells, Evelyn Frances

    1994-01-01

    Color specification is a time-consuming and challenging task in computer graphics applications. The purpose of this research is to examine the color specification process in the context of current human-computer interface ...

  13. Two-color-laser-driven direct electron acceleration in infinite vacuum

    E-Print Network [OSTI]

    Wong, Liang Jie

    We propose a direct electron acceleration scheme that uses a two-color pulsed radially polarized laser beam. The two-color scheme achieves electron acceleration exceeding 90% of the theoretical energy gain limit, over twice ...

  14. Breeding biology and inheritance of a color pattern in a monomorphic bird

    E-Print Network [OSTI]

    Bontrager, Alexa Lee-Lang

    2006-01-01

    Hartley IR (1998) Sexual dimorphism in birds: why are thereevolution of sexual color dimorphism in passerine birds. Auk

  15. Fossilized Biophotonic Nanostructures Reveal the Original Colors of 47-Million-Year-Old Moths

    E-Print Network [OSTI]

    Cao, Hui

    lepidopterans; specimens are from the 47-million-year-old Messel oil shale (Germany). The preserved colors

  16. A Brief Introduction to the Color Glass Condensate and the Glasma

    E-Print Network [OSTI]

    Larry McLerran

    2008-12-29

    I provide a brief introduction to the theoretical ideas and phenomenological motivation for the Color Glass Condensate and the Glasma

  17. Plasmonic Metasurfaces for Coloration of Plastic Consumer Products Jeppe S. Clausen,

    E-Print Network [OSTI]

    Levy, Uriel

    -based coloring of polymers is used in the fabrication of almost any type of plastic-based consumer product, either as base color in the bulk polymer or in surface- decoration inks. The mixing of many colorants in a single product is both costly and limits the possibilities for recycling as separation of the different

  18. Multitarget region tracking based on short-sight modeling of background and color distribution

    E-Print Network [OSTI]

    Mille, Julien

    as well as non-parametric modeling of color statistics, we develop an energy-minimization based approach of color statistics and shapes of objects over time and space [1][2]. Most often, the energy is derived for tracking in real scenes with cluttered backgrounds, where statistical color data is highly scattered

  19. Color Space Conversion for MPEG decoding on FPGA-augmented TriMedia Processor

    E-Print Network [OSTI]

    Cotofana, Sorin

    the CSC unit on FPGA at application load-time, ¼ Ö- to-Ê ¼ ¼ ¼ color space conversion can be computedColor Space Conversion for MPEG decoding on FPGA-augmented TriMedia Processor Mihai SimaÝÞ Stamatis://ce.et.tudelft.nl/~mihai Abstract A case study on Color Space Conversion (CSC) for MPEG decoding, carried out on FPGA- augmented Tri

  20. A 3D Interface for Selecting Household Paint Colors Seth Berrier, Gary Meyer and Danny Rado

    E-Print Network [OSTI]

    Meyer, Gary

    A 3D Interface for Selecting Household Paint Colors Seth Berrier, Gary Meyer and Danny Rado Digital Abstract Commercially available tools for searching collections of paint colors are critically examined and a new computer interface for selecting household paint colors is proposed. The new system is organized

  1. Magnetic Fields Boosted by Gluon Vortices in Color Superconductivity

    E-Print Network [OSTI]

    Efrain J. Ferrer; Vivian de la Incera

    2006-08-28

    We investigate the effects of an external magnetic field in the gluon dynamics of a color superconductor with three massless quark flavors. In the framework of gluon mean-field theory at asymptotic densities, we show that the long-range component $\\widetilde{H}$ of the external magnetic field that penetrates the CFL phase produces an instability when its strength becomes larger than the Meissner mass of the charged gluons. As a consequence, the magnetic field causes the formation of a vortex state characterized by the condensation of charged gluons and the creation of magnetic flux tubes. Inside the flux tubes the magnetic field is stronger than the applied one. This antiscreening effect is connected to the anomalous magnetic moment of the gluon field. We suggest how this same mechanism could serve to remove the chromomagnetic instabilities existing in gapless color superconductivity.

  2. Color Superconductivity in Compact Stars and Gamma Ray Bursts

    E-Print Network [OSTI]

    A. Drago; A. Lavagno; G. Pagliara

    2003-04-08

    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.

  3. Hair treatment process providing dispersed colors by light diffraction

    DOE Patents [OSTI]

    Sutton, Richard Matthew Charles; Lamartine, Bruce Carvell; Orler, E. Bruce; Song, Shuangqi

    2015-12-22

    A hair treatment process for providing dispersed colors by light diffraction including (a) coating the hair with a material comprising a polymer, (b) pressing the hair with a pressing device including one or more surfaces, and (c) forming a secondary nanostructured surface pattern on the hair that is complementary to the primary nanostructured surface pattern on the one or more surfaces of the pressing device. The secondary nanostructured surface pattern diffracts light into dispersed colors that are visible on the hair. The section of the hair is pressed with the pressing device for from about 1 to 55 seconds. The polymer has a glass transition temperature from about 55.degree. C. to about 90.degree. C. The one or more surfaces include a primary nanostructured surface pattern.

  4. Signature of the Fragmentation of a Color Flux Tube

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wong, Cheuk-Yin

    2015-10-07

    The production of quark-antiquark pairs along a color flux tube precedes the fragmentation of the tube. Because of the local conservation of momentum and charge, the production of a $q$-$\\bar q$ pair will lead to correlations of adjacently produced mesons (mostly pions). Adjacently produced pions however can be signalled by the their rapidity difference $\\Delta y$ falling within the window of $|\\Delta y | more »the near side at $(\\Delta \\phi, \\Delta y) \\sim 0$, but an enhanced azimuthal correlation on the back-to-back, away side at $(\\Delta \\phi$$\\sim$$ \\pi,\\Delta y$$\\sim$0). Similarly, in a flux tube fragmentation, the local conservation of charge will forbid the production of like charge pions within $|\\Delta y | 1/(dN_\\pi/dy)$. These properties may be used as the signature for the fragmentation of a color flux tube.« less

  5. The effects of colored quark entropy on the bag pressure

    E-Print Network [OSTI]

    Miller, David E

    2004-01-01

    We study the effects of the ground state entropy of colored quarks upon the bag pressure at low temperatures. The vacuum expectation values of the quark and gluon fields are used to express the interactions in QCD ground state in the limit of low temperatures and chemical potentials. Apparently, the inclusion of this entropy in the equation of state provides the hadron constituents with an additional heat which causes a decrease in the effective latent heat inside the hadronic bag and consequently decreases the non-perturbative bag pressure. We have considered two types of baryonic bags, $\\Delta$ and $\\Omega^-$. In both cases we have found that the bag pressure decreases with the temperature. On the other hand, when the colored quark ground state entropy is not considered, the bag pressure as conventionally believed remains constant for finite temperature.

  6. Two-Color QCD with Chiral Chemical Potential

    E-Print Network [OSTI]

    V. V. Braguta; V. A. Goy; E. -M. Ilgenfritz; A. Yu. Kotov; A. V. Molochkov; M. Muller-Preussker; B. Petersson; A. Schreiber

    2014-11-19

    The phase diagram of two-color QCD with a chiral chemical potential is studied on the lattice. The focus is on the confinement/deconfinement phase transition and the breaking/restoration of chiral symmetry. The simulations are carried out with dynamical staggered fermions without rooting. The dependence of the Polyakov loop, the chiral condensate and the corresponding susceptibilities on the chiral chemical potential and the temperature are presented.

  7. Color superconductivity in a strong external magnetic field

    E-Print Network [OSTI]

    Cristina Manuel

    2006-07-26

    We explore the effects of an applied strong external magnetic field in a three flavor massless color superconductor. The long-range component of the B field that penetrates the superconductor enhances some quark condensates, leading to a different condensation pattern. The external field also reduces the flavor symmetries in the system, and thus it changes drastically the corresponding low energy physics. Our considerations are relevant for the study of highly magnetized compact stars.

  8. Lean color characteristics of beef from steers and young bulls 

    E-Print Network [OSTI]

    Purser, David Elbert

    1982-01-01

    bulls are more muscular with less fat than those from steers; it would seem logical that beef from young bulls could be utilized at the retail level to provide consumers with retail cuts with less fat. One of the problems associated with marketing... panel evaluations of steaks from retail display, microbial sampling, colorimetric measures of muscle surface light reflectance, pH, and total pigment concentration were analyzed to determine causes, if any, for the differences in muscle color between...

  9. Ultraviolet color centers and refraction in silicate glasses.

    SciTech Connect (OSTI)

    Smith, D. Y.; Shiles, E.; Inokuti, M.; Physics; Univ. of Vermont

    2005-01-01

    We studied the uv absorption of optical glasses to clarify the role of disorder and modifier ions in deter-mining the refractive index for visible light. We find these uv absorptions are analogous to traditional color-center spectra. Processes include ionic absorption and perturbation of host excitons. These absorptions essentially determine the visible index, which is predicted to within a few percent from the uv spectrum by the generalized Cauchy dispersion formula.

  10. On the Limitations of the Color Dipole Picture

    E-Print Network [OSTI]

    Carlo Ewerz; Andreas von Manteuffel; Otto Nachtmann

    2007-10-15

    We discuss two aspects of the color dipole picture of high energy photon-proton scattering. First we present bounds on various ratios of deep inelastic structure functions resulting from the dipole picture that, together with the measured data, can be used to restrict the kinematical range of its applicability. The second issue that we address is the choice of energy variable in the dipole-proton cross section.

  11. The Role of Bag Surface Tension in Color Confinement

    E-Print Network [OSTI]

    Bugaev, K A

    2011-01-01

    We discuss here the novel view at the color confinement which, on the one hand, allows us to find out the surface tension coefficient of quark gluon bags and, under a plausible assumption, to determine the endpoint temperature of the QCD phase diagram, on the other hand. The present model considers the confining color tube as the cylindrical quark gluon bag with non-zero surface tension. A close inspection of the free energies of elongated cylindrical bag and the confining color tube that connects the static quark-antiquark pair allows us to find out the string tension in terms of the surface tension, thermal pressure and the bag radius. Using the derived relation it is possible to estimate the bag surface tension at zero temperature directly from the lattice QCD data and to estimate the (tri)critical endpoint temperature. In the present analysis the topological free energy of the cylindrical bag is accounted for the first time. The requirement of positive entropy density of such bags leads to negative values...

  12. Phase Structure and Instability Problem in Color Superconductivity

    E-Print Network [OSTI]

    Kenji Fukushima

    2005-10-22

    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.

  13. Thermalization and Isotropization of Color-Electric Flux Tubes

    E-Print Network [OSTI]

    M. Ruggieri; A. Puglisi; L. Oliva; S. Plumari; F. Scardina; V. Greco

    2015-05-29

    In this study we model early times dynamics of the system produced in relativistic heavy ion collisions by an initial color electric field which then decays to a plasma by the Schwinger mechanism, coupling the dynamical evolution of the initial color field to the dynamics of the many particles system produced by the decay. The latter is described by relativistic kinetic theory in which we fix the ratio $\\eta/s$ rather than insisting on specific microscopic processes. We study isotropization and thermalization of the system produced by the field decay for a static box and for a $1+1$D expanding geometry. We find that regardless of the viscosity of the produced plasma, the initial color electric field decays within $1$ fm/c; however in the case $\\eta/s$ is large, oscillations of the field are effective along all the entire time evolution of the system, which affect the late times evolution of the ratio between longitudinal and transverse pressure. In case of small $\\eta/s$ ($\\eta/s\\lesssim0.3$) we find $\\tau_{isotropization}\\approx 0.8$ fm/c and $\\tau_{thermalization}\\approx 1$ fm/c in agreement with the common lore of hydrodynamics. Moreover we have investigated the effect of turning from the relaxation time approximation to the Chapman-Enskog one: we find that this improvement affects mainly the early times evolution of the physical quantities, the effect being milder in the late times evolution.

  14. Fault-Tolerant Error Correction with the Gauge Color Code

    E-Print Network [OSTI]

    Benjamin J. Brown; Naomi H. Nickerson; Dan E. Browne

    2015-08-03

    The gauge color code is a quantum error-correcting code with local syndrome measurements that, remarkably, admits a universal transversal gate set without the need for resource-intensive magic state distillation. A result of recent interest, proposed by Bomb\\'{i}n, shows that the subsystem structure of the gauge color code admits an error-correction protocol that achieves tolerance to noisy measurements without the need for repeated measurements, so called single-shot error correction. Here, we demonstrate the promise of single-shot error correction by designing a two-part decoder and investigate its performance. We simulate fault-tolerant error correction with the gauge color code by repeatedly applying our proposed error-correction protocol to deal with errors that occur continuously to the underlying physical qubits of the code over the duration that quantum information is stored. We estimate a sustainable error rate, i.e. the threshold for the long time limit, of $ \\sim 0.31\\%$ for a phenomenological noise model using a simple decoding algorithm.

  15. Color-Induced Displacement double stars in SDSS

    E-Print Network [OSTI]

    D. Pourbaix; Z. Ivezic; G. R. Knapp; J. E. Gunn

    2004-03-09

    We report the first successful application of the astrometric color-induced displacement technique (CID, the displacement of the photocenter between different bandpasses due to a varying contribution of differently colored components to the total light), originally proposed by Wielen (1996) for discovering unresolved binary stars. Using the Sloan Digital Sky Survey (SDSS) Data Release 1 with 2.5 million stars brighter than 21m in the u and g bands, we select 419 candidate binary stars with CID greater than 0.5 arcsec. The SDSS colors of the majority of these candidates are consistent with binary systems including a white dwarf and any main sequence star with spectral type later than ~K7. The astrometric CID method discussed here is complementary to the photometric selection of binary stars in SDSS discussed by Smolcic et al. (2004), but there is considerable overlap (15%) between the two samples of selected candidates. This overlap testifies both to the physical soundness of both methods, as well as to the astrometric and photometric quality of SDSS data.

  16. Sealed source and device design safety testing: Technical report on the findings of task 4 -- Investigation of failed Nitinol brachytherapy wire. Volume 2

    SciTech Connect (OSTI)

    Benac, D.J.; Burghard, H.C. [Southwest Research Inst., San Antonio, TX (United States)

    1996-03-01

    This report covers an investigation of the nature and cause of failure in Nitinol brachytherapy sourcewires. The investigation was initiated after two clinical incidents in which sourcewires failed during or immediately after a treatment. The investigation determined that the two clinical Nitinol sourcewires failed in a brittle manner, which is atypical for Nitinol. There were no material anomalies or subcritical flaws to explain the brittle failures. The bend tests also demonstrated that neither moist environment, radiation, nor low-temperature structural transformation was a likely root cause of the failures. However, degradation of the PTFE was consistently evident, and those sourcewires shipped or stored with PTFE sleeves consistently failed in laboratory bend tests. On the basis of the results of this study, it was concluded that the root cause of the in-service failures of the sourcewires was environmentally induced embrittlement due to the breakdown of the PTFE protective sleeves in the presence of the high-radiation field and subsequent reaction or interaction of the breakdown products with the Nitinol alloy.

  17. Energy States of Colored Particle in a Chromomagnetic Field

    E-Print Network [OSTI]

    Sh. Mamedov

    2006-11-24

    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.

  18. Computation of spontaneous emission dynamics in colored vacua

    E-Print Network [OSTI]

    Mohammad Hosain Teimourpour; Ramy El-Ganainy

    2014-12-25

    We present an efficient time domain numerical scheme for computing spontaneous emission dynamics in colored vacua. Starting from first principles, we map the unitary evolution of a dressed two-level quantum emitter onto the problem of electromagnetic radiation from a complex harmonic oscillator under self-interaction conditions. This latter oscillator-field system can be efficiently integrated by using finite difference time domain method without the need for calculating the photonic eigenmodes of the surrounding environment. In contrast to earlier investigations, our computational framework provides a unified numerical treatment for both weak and strong coupling regimes alike. We illustrate the versatility of our scheme by considering several different examples.

  19. Forward Quark Jets from Protons Shattering the Colored Glass

    E-Print Network [OSTI]

    Adrian Dumitru; Jamal Jalilian-Marian

    2002-04-02

    We consider the single-inclusive minijet cross section in pA at forward rapidity within the Color Glass Condensate model of high energy collisions. We show that the nucleus appears black to the incident quarks except for very large impact parameters. A markedly flatter p_t distribution as compared to QCD in the dilute perturbative limit is predicted for transverse momenta about the saturation scale, which could be as large as Q_s^2 ~ 10 GeV^2 for a gold nucleus boosted to rapidity ~10 (as at the BNL-RHIC).

  20. Colored knot polynomials for arbitrary pretzel knots and links

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Galakhov, D.; Melnikov, D.; Mironov, A.; Morozov, A.; Sleptsov, A.

    2015-04-01

    A very simple expression is conjectured for arbitrary colored Jones and HOMFLY polynomials of a rich (g+1)-parametric family of pretzel knots and links. The answer for the Jones and HOMFLY is fully and explicitly expressed through the Racah matrix of Uq(SUN), and looks related to a modular transformation of toric conformal block.Knot polynomials are among the hottest topics in modern theory. They are supposed to summarize nicely representation theory of quantum algebras and modular properties of conformal blocks. The result reported in the present letter, provides a spectacular illustration and support to this general expectation.

  1. Angular Momentum Mixing in a Non-spherical Color Superconductor

    E-Print Network [OSTI]

    Bo Feng; Defu Hou; Hai-cang Ren

    2007-11-28

    We study the angular momentum mixing effects in the color superconductor with non-spherical pairing. We first clarify the concept of the angular momentum mixing with a toy model for non-relativistic and spinless fermions. Then we derive the gap equation for the polar phase of dense QCD by minimizing the CJT free energy. The solution of the gap equation consists of all angular momentum partial waves of odd parity. The corresponding free energy is found to be lower than that reported in the literature with p-wave only.

  2. Color Glass Condensate and its relation to HERA physics

    E-Print Network [OSTI]

    Edmond Iancu

    2009-01-08

    I give a brief overview of the effective theory for the Color Glass Condensate, which is the high-density gluonic matter which controls high-energy scattering in QCD in the vicinity of the unitarity limit. I concentrate on fundamental phenomena, like gluon saturation, unitarization, and geometric scaling, and the way how these are encoded in the formalism. I emphasize the importance of the next-to-leading order corrections, especially the running of the coupling, for both conceptual and phenomenological issues. I survey the implications of the CGC theory for the HERA physics and its phenomenological applications based on saturation models.

  3. BLM Color Country District Office | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex AAustria GeothermalInformationColor Country District Office

  4. A green-yellow emitting oxyfluoride solid solution phosphor Sr[subscript 2]Ba(AlO[subscript 4]F)[subscript 1;#8722;x](SiO[subscript 5])x:Ce[superscript 3+] for thermally stable, high color rendition solid state white lighting

    SciTech Connect (OSTI)

    Denault, Kristin A.; George, Nathan C.; Paden, Sara R.; Brinkley, Stuart; Mikhailovsky, Alexander A.; Neuefeind, Jörg; DenBaars, Steven P.; Seshadri, Ram (UCSB); (ORNL)

    2012-10-23

    A near-UV excited, oxyfluoride phosphor solid solution Sr{sub 1.975}Ce{sub 0.025}Ba(AlO{sub 4}F){sub 1-x}(SiO{sub 5}){sub x} has been developed for solid state white lighting applications. An examination of the host lattice, and the local structure around the Ce{sup 3+} activator ions through a combination of density functional theory, synchrotron X-ray and neutron powder diffraction and total scattering, and electron paramagnetic resonance, points to how chemical substitutions play a crucial role in tuning the optical properties of the phosphor. The maximum emission wavelength can be tuned from green ({lambda}{sub em} = 523 nm) to yellow ({lambda}{sub em} = 552 nm) by tuning the composition, x. Photoluminescent quantum yield is determined to be 70 {+-} 5% for some of the examples in the series. Excellent thermal properties were found for the x = 0.5 sample, with the photoluminescence intensity at 160 C only decreased to 82% of its room temperature value. Phosphor-converted LED devices fabricated using an InGaN LED ({lambda}{sub max} = 400 nm) exhibit high color rendering white light with R{sub a} = 70 and a correlated color temperature near 7000 K. The value of R{sub a} could be raised to 90 by the addition of a red component, and the correlated color temperature lowered to near 4000 K.

  5. An Approach To Painterly Rendering 

    E-Print Network [OSTI]

    Broussard, Garrett

    2014-10-28

    lack. Accompanying this paper are some animations demonstrating possible outcomes, and they are located on the Texas A&M online library catalog system. The painting system used for this project expands upon an algorithm designed by Barbara Meier...

  6. NREL: Sustainable NREL - RSF Rendering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS - Simple ModelCafeteria ANews BelowRSF

  7. Sandia Energy » Alyssa Christy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    feed 0 Four-color laser white illuminant demonstrating high color-rendering quality http:energy.sandia.govfour-color-laser-white-illuminant-demonstrating-high-colo...

  8. Pair production of color-octet scalars at the LHC

    SciTech Connect (OSTI)

    Idilbi, Ahmad [Department of Physics, Duke University, Durham, North Carolina 27708 (United States); Departamento de Fisica Teorica II, Universidad Complutense de Madrid, 28040 Madrid (Spain); Kim, Chul [Department of Physics, Duke University, Durham, North Carolina 27708 (United States); Theory Division, Department of Physics, CERN, CH-1211, Geneva 23 (Switzerland); Mehen, Thomas [Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

    2010-10-01

    Heavy colored scalar particles, which exist in many models of new physics, can be pair produced at the LHC via gluon-gluon fusion and possibly form quarkoniumlike bound states. If the scalars are also charged under the electroweak gauge group, these bound states can then decay into electroweak bosons. This yields a resonant cross section for final states such as {gamma}{gamma} that can exceed standard model backgrounds. This paper studies this process in the Manohar-Wise model of color-octet scalars (COS). Important threshold logarithms and final state Coulomb-like QCD interactions are resummed using effective field theory. We compute the resummed cross section for gluon-gluon fusion to COS pairs at the LHC as well as the resonant cross section for octetonium decaying to {gamma}{gamma}. The latter cross section exceeds the standard model diphoton cross section when the COS mass is less than 500 (350) GeV for {radical}(s)=14(7) TeV. Nonobservation of resonances below these energies can significantly improve existing bounds on COS masses.

  9. Higgs Boson Mass predicted by the Four Color Theorem

    E-Print Network [OSTI]

    Ashay Dharwadker; Vladimir Khachatryan

    2009-12-28

    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.

  10. Low energy properties of color-flavor locked superconductors

    E-Print Network [OSTI]

    Cristina Manuel

    2005-12-05

    We discuss some low energy properties of color-flavor locked (CFL) superconductors. First, we study how an external magnetic field affects their Goldstone physics in the chiral limit, stressing that there is a long-range component of the field that penetrates the superconductor. We note that the most remarkable effect of the applied field is giving a mass to the charged pions and kaons. By estimating this effect, we see that for values $e B \\sim 2 f_\\pi \\Delta$, where $\\Delta$ is the quark gap, and $f_\\pi$ the pion decay constant, the charged Goldstone bosons become so heavy, that they turn out to be unstable. The symmetry breaking pattern is then changed, agreeing with that of the magnetic color-flavor locked (MCFL) phase, recently proposed in hep-ph/0503162. Finally, we discuss the physics of the superfluid phonon of the CFL phase, compare it with that of the phonon of a Bose-Einstein condensate, and discuss transport phenomena at low temperature. Astrophysical implications of all the above low energy properties are also commented.

  11. Signature of the Fragmentation of a Color Flux Tube

    E-Print Network [OSTI]

    Cheuk-Yin Wong

    2015-10-01

    The production of quark-antiquark pairs along a color flux tube precedes the fragmentation of the tube. Because of local conservation laws, the production of a $q$-$\\bar q$ pair will lead to correlations of adjacently produced mesons (mostly pions). Adjacently produced mesons however can be signalled by their rapidity difference $\\Delta y$ falling within the window of $|\\Delta y | $$\\lesssim$$ 1/(dN/dy)$, on account of the space-time-rapidity ordering of produced mesons in a flux tube fragmentation. Therefore, the local conservation laws of momentum, charge, and flavor will lead to a suppression of angular correlation function $dN/(d\\Delta \\phi\\, d\\Delta y)$ for two mesons with opposite charges or strangeness on the near side at $(\\Delta \\phi, \\Delta y)$$ \\sim$0, but an enhanced correlation on the back-to-back, away side at $\\Delta \\phi$$\\sim$$ \\pi$, within the window of $|\\Delta y |$$\\lesssim$$ 1/(dN/dy)$. These properties can be used as signatures for the fragmentation of a color flux tube. The gross features of the signature of flux tube fragmentation for two oppositely charged mesons are qualitatively consistent with the STAR and NA61/SHINE angular correlation data for two hadrons with opposite charges in the low-$p_T$ region in high-energy $pp$ collisions.

  12. Multi-Color Light Curves of Type Ia Supernovae on the Color-Magnitude Diagram a Novel Step Toward More Precise Distance and Extinction Estimates

    E-Print Network [OSTI]

    Wang, L; Aldering, G; Perlmutter, S; Wang, Lifan; Goldhaber, Gerson; Aldering, Greg; Perlmutter, Saul

    2003-01-01

    We show empirically that fits to the color-magnitude relation of Type Ia supernovae after optical maximum can provide accurate relative extragalactic distances. We report the discovery of an empirical color relation for Type Ia light curves: During much of the first month past maximum, the magnitudes of Type Ia supernovae defined at a given value of color index have a very small magnitude dispersion; moreover, during this period the relation between $B$ magnitude and $B-V$ color (or $B-R$ or $B-I$ color) is strikingly linear, to the accuracy of existing well-measured data. These linear relations can provide robust distance estimates, in particular, by using the magnitudes when the supernova reaches a given color. After correction for light curve strech factor or decline rate, the dispersion of the magnitudes taken at the intercept of the linear color-magnitude relation are found to be around 0$^m$.08 for the sub-sample of supernovae with \\BVm $\\le 0^m.05$, and around 0$^m$.11 for the sub-sample with \\BVm $\\le...

  13. Use of tristimulus colorimetry to measure ornamental color in little bluestem grass (Schizachyrium scoparium [Michx.] Nash) 

    E-Print Network [OSTI]

    Snowden, John Seward

    1990-01-01

    color within the light range perceived by the human eye (Francis and Clydesdale, 1975). The basic machinery uses a light source, three filters to imitate the responses of the human eye, and photocells. Several systems of quantification of color... using tristimulus colorimetry have been developed 11 (Francis and Clydesdale, 1975). The Hunterlab Labscan Spectro Colorimeter LS 5100 with videoscreen monitor has the capability of measuring color in four systems. Concentration here...

  14. The role of Förster Resonance Energy Transfer in luminescent solar concentrator efficiency and color tunability

    E-Print Network [OSTI]

    Balaban, Benjamin

    2013-01-01

    IN LUMINESCENT SOLAR CONCENTRATOR EFFICIENCY AND COLORM.A. Baldo, "High-efficiency organic solar concentrators forin luminescent solar concentrator efficiency and color

  15. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    nm) In press at Solar Energy Materials & Solar Cellsasphalt shingles. Solar Energy Materials & Solar Cells 92 (common colorants, Solar Energy Materials & Solar Cells 89,

  16. CHANGES IN SHADE, COLOR, AND PATTERN IN FISHES, AND THEIR BEARING ON THE PROBLEMS OF ADAPTATION

    E-Print Network [OSTI]

    . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 Black and white background, artificial. . . . . . . . . . . . . . . . . . . .. . . . . . . 191 Colored background, artificial Experiments (B), light from above relatively stronger than normal. . . . . . . . . . . . . . . . 212 Vision

  17. High-Contrast Color-Stripe Pattern for Rapid Structured-Light Range Imaging

    E-Print Network [OSTI]

    Je, Changsoo; Park, Rae-Hong

    2015-01-01

    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 ambigui...

  18. Enhanced structural color generation in aluminum metamaterials coated with a thin polymer layer

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Cheng, Fei; Yang, Xiaodong; Rosenmann, Daniel; Stan, Liliana; Czaplewski, David; Gao, Jie

    2015-09-18

    A high-resolution and angle-insensitive structural color generation platform is demonstrated based on triple-layer aluminum-silica-aluminum metamaterials supporting surface plasmon resonances tunable across the entire visible spectrum. The color performances of the fabricated aluminum metamaterials can be strongly enhanced by coating a thin transparent polymer layer on top. The results show that the presence of the polymer layer induces a better impedance matching for the plasmonic resonances to the free space so that strong light absorption can be obtained, leading to the generation of pure colors in cyan, magenta, yellow and black (CMYK) with high color saturation.

  19. OSERENA, an Optimized Coloring Algorithm for Dense or Large Scale Wireless Networks

    E-Print Network [OSTI]

    Amdouni, Ichrak; Adjih, Cédric

    2011-01-01

    The goal of this research report is to present OSERENA "Optimized SchEduling RoutEr Node Activity", a distributed coloring algorithm optimized for dense wireless networks. Network density has an extremely reduced impact on the size of the messages exchanged to color the network. Furthermore, the number of colors used to color the network is not impacted by this optimization. We describe in this research report the properties of the algorithm and prove its correctness and termination. Simulation results point out the considerable gains in bandwidth.

  20. Interrelation of surface tension, optical turbidity, and color of operational transformer oils

    SciTech Connect (OSTI)

    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.

    2011-09-15

    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.

  1. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    Wavelength (nm) In press at Solar Energy Materials & Solarcool asphalt shingles. Solar Energy Materials & Solar Cellsof common colorants, Solar Energy Materials & Solar Cells

  2. School Reform for Students of Color and English Learners: Leaving Pedagogy Behind

    E-Print Network [OSTI]

    Trujillo, Tina

    2011-01-01

    School Reform for Students of Color and English Learners:non-profit school reform organizations, universities, for-non- profit school reform organizations have proliferated in

  3. Structural color printing based on plasmonic metasurfaces of perfect light absorption

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Cheng, Fei; Gao, Jie; Luk, Ting S.; Yang, Xiaodong

    2015-06-05

    Subwavelength structural color filtering and printing technologies employing plasmonic nanostructures have recently been recognized as an important and beneficial complement to the traditional colorant-based pigmentation. However, the color saturation, brightness and incident angle tolerance of structural color printing need to be improved to meet the application requirement. Here we demonstrate a structural color printing method based on plasmonic metasurfaces of perfect light absorption to improve color performances such as saturation and brightness. Thin-layer perfect absorbers with periodic hole arrays are designed at visible frequencies and the absorption peaks are tuned by simply adjusting the hole size and periodicity. Near perfectmore »light absorption with high quality factors are obtained to realize high-resolution, angle-insensitive plasmonic color printing with high color saturation and brightness. Moreover, the fabricated metasurfaces can be protected with a protective coating for ambient use without degrading performances. The demonstrated structural color printing platform offers great potential for applications ranging from security marking to information storage.« less

  4. Early Results with the Use of Heparin-bonded Stent Graft to Rescue Failed Angioplasty of Chronic Femoropopliteal Occlusive Lesions: TASC D Lesions Have a Poor Outcome

    SciTech Connect (OSTI)

    Kuhan, Ganesh, E-mail: gkuhan@nhs.net; Abisi, Said; Braithwaite, Bruce D.; MacSweeney, Shane T. R. [Nottingham University Hospitals, Vascular and Endovascular Unit, Queens Medical Centre (United Kingdom); Whitaker, Simon C.; Habib, Said B. [Nottingham University Hospitals, Department of Radiology, Queen's Medical Centre (United Kingdom)

    2012-10-15

    Purpose: To evaluate early patency rate of the heparin-bonded stent grafts in atherosclerotic long femoropopliteal occlusive disease, and to identify factors that affect outcome. Methods: Heparin-bonded Viabahn stent grafts were placed in 33 limbs in 33 patients during 2009-2010. The stents were deployed to rescue failed conventional balloon angioplasty. Mean age was 69 (range 44-88) years, and 67 % (22 of 33) were men. Most procedures (21 of 33, 64 %) were performed for critical limb ischemia (33 % for rest pain, 30 % tissue loss). Kaplan-Meier plots and Cox regression analysis were used to identify significant risk factors. Results: The average length of lesions treated was 25 {+-} 10 cm, and they were predominantly TASC (Transatlantic Intersociety Consensus) D (n = 13) and C (n = 17) lesions. The median primary patency was 5.0 months (95 % confidence interval 1.22-8.77). The mean secondary patency was 8.6 months (95 % confidence interval 6.82-10.42). Subsequently, 4 patients underwent bypass surgery and 5 patients underwent major amputation. One patient died. There were 5 in-stent or edge-stent stenoses. Cox multivariate regression analysis identified TASC D lesions to be a significant risk factor for early occlusion (p = 0.035). Conclusion: TASC D lesions of femoropopliteal occlusions have poor patency rates with the use of heparin-bonded stent grafts after failed conventional angioplasty. Alternative options should be considered for these patients.

  5. Multi-color light curves of type Ia supernovae on the color-magnitude diagram: A novel step toward more precise distance and extinction estimates

    E-Print Network [OSTI]

    Wang, Lifan; Goldhaber, Gerson; Aldering, Greg; Perlmutter, Saul

    2003-01-01

    Date is earlier than for supernovae with smaller ?m 15 . SeeLight Curves of Type Ia Supernovae on the Color-Magnituderelation of Type Ia supernovae after optical maximum can

  6. Patterned three-color ZnCdSeZnCdMgSe quantum-well structures for integrated full-color and white light emitters

    E-Print Network [OSTI]

    . 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

  7. Automatic Microaneurysm Detection and Characterization Through Digital Color Fundus Images

    SciTech Connect (OSTI)

    Martins, Charles; Veras, Rodrigo; Ramalho, Geraldo; Medeiros, Fatima; Ushizima, Daniela

    2008-08-29

    Ocular fundus images can provide information about retinal, ophthalmic, and even systemic diseases such as diabetes. Microaneurysms (MAs) are the earliest sign of Diabetic Retinopathy, a frequently observed complication in both type 1 and type 2 diabetes. Robust detection of MAs in digital color fundus images is critical in the development of automated screening systems for this kind of disease. Automatic grading of these images is being considered by health boards so that the human grading task is reduced. In this paper we describe segmentation and the feature extraction methods for candidate MAs detection.We show that the candidate MAs detected with the methodology have been successfully classified by a MLP neural network (correct classification of 84percent).

  8. Color-based tracking of plasma dust particles

    SciTech Connect (OSTI)

    Villamayor, Michelle Marie S. Soriano, Maricor N.; Ramos, Henry J.; Kato, Shuichi; Wada, Motoi

    2014-02-15

    Color-based tracking to observe agglomeration of deposited particles inside a compact planar magnetron during plasma discharge was done by creating high dynamic range (HDR) images of photos captured by a Pentax K10D digital camera. Carbon erosion and redeposition was also monitored using the technique. The HDR images were subjected to a chromaticity-based constraint discoloration inside the plasma chamber indicating film formation or carbon redeposition. Results show that dust deposition occurs first near the evacuation pumps due to the pressure gradient and then accumulates at the positively charged walls of the chamber. This method can be applied to monitor dust formation during dusty plasma experiments without major modification of plasma devices, useful especially for large fusion reactors.

  9. Color superconductivity with determinant interaction in strange quark matter

    E-Print Network [OSTI]

    Amruta Mishra; Hiranmaya Mishra

    2006-08-28

    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.

  10. Transfer matrix for spanning trees, webs and colored forests

    E-Print Network [OSTI]

    J. G. Brankov; V. S. Poghosyan; V. B. Priezzhev; P. Ruelle

    2014-05-02

    We use the transfer matrix formalism for dimers proposed by Lieb, and generalize it to address the corresponding problem for arrow configurations (or trees) associated to dimer configurations through Temperley's correspondence. On a cylinder, the arrow configurations can be partitioned into sectors according to the number of non-contractible loops they contain. We show how Lieb's transfer matrix can be adapted in order to disentangle the various sectors and to compute the corresponding partition functions. In order to address the issue of Jordan cells, we introduce a new, extended transfer matrix, which not only keeps track of the positions of the dimers, but also propagates colors along the branches of the associated trees. We argue that this new matrix contains Jordan cells.

  11. Multi-Color Light Curves of Type Ia Supernovae on the Color-Magnitude Diagram: a Novel Step Toward More Precise Distance and Extinction Estimates

    E-Print Network [OSTI]

    Lifan Wang; Gerson Goldhaber; Greg Aldering; Saul Perlmutter

    2003-02-17

    We show empirically that fits to the color-magnitude relation of Type Ia supernovae after optical maximum can provide accurate relative extragalactic distances. We report the discovery of an empirical color relation for Type Ia light curves: During much of the first month past maximum, the magnitudes of Type Ia supernovae defined at a given value of color index have a very small magnitude dispersion; moreover, during this period the relation between $B$ magnitude and $B-V$ color (or $B-R$ or $B-I$ color) is strikingly linear, to the accuracy of existing well-measured data. These linear relations can provide robust distance estimates, in particular, by using the magnitudes when the supernova reaches a given color. After correction for light curve strech factor or decline rate, the dispersion of the magnitudes taken at the intercept of the linear color-magnitude relation are found to be around 0$^m$.08 for the sub-sample of supernovae with \\BVm $\\le 0^m.05$, and around 0$^m$.11 for the sub-sample with \\BVm $\\le 0^m.2$. This small dispersion is consistent with being mostly due to observational errors. The method presented here and the conventional light curve fitting methods can be combined to further improve statistical dispersions of distance estimates. It can be combined with the magnitude at maximum to deduce dust extinction. The slopes of the color-magnitude relation may also be used to identify intrinsically different SN Ia systems. The method provides a tool that is fundamental to using SN Ia to estimate cosmological parameters such as the Hubble constant and the mass and dark energy content of the universe.

  12. The rigidity of crystalline color superconducting quark matter

    E-Print Network [OSTI]

    Massimo Mannarelli; Krishna Rajagopal; Rishi Sharma

    2007-09-17

    We calculate the shear modulus of crystalline color superconducting quark matter, showing that this phase of dense, but not asymptotically dense, three-flavor quark matter responds to shear stress like a very rigid solid. To evaluate the shear modulus, we derive the low energy effective Lagrangian that describes the phonons that originate from the spontaneous breaking of translation invariance by the spatial modulation of the gap parameter $\\Delta$. These massless bosons describe space- and time-dependent fluctuations of the crystal structure and are analogous to the phonons in ordinary crystals. The coefficients of the spatial derivative terms of the phonon effective Lagrangian are related to the elastic moduli of the crystal; the coefficients that encode the linear response of the crystal to a shearing stress define the shear modulus. We analyze the two particular crystal structures which are energetically favored over a wide range of densities, in each case evaluating the phonon effective action and the shear modulus up to order $\\Delta^2$ in a Ginzburg-Landau expansion, finding shear moduli which are 20 to 1000 times larger than those of neutron star crusts. The crystalline color superconducting phase has long been known to be a superfluid -- by picking a phase its order parameter breaks the quark-number $U(1)_B$ symmetry spontaneously. Our results demonstrate that this superfluid phase of matter is at the same time a rigid solid. We close with a rough estimate of the pinning force on the rotational vortices which would be formed embedded within this rigid superfluid upon rotation. Our results raise the possibility that (some) pulsar glitches could originate within a quark matter core deep within a neutron star.

  13. Antibacterial Colorants: Characterization of Prodiginines and Their Applications on Textile Materials

    E-Print Network [OSTI]

    Hammock, Bruce D.

    from non- renewable resources such as fossil oil. The production of the synthetic colorants, synthetic colorants are facing the following chal- lenges: dependence on non-renewable oil resources and sus from various resources including plants, animals, and microorganisms, which are possible alternatives

  14. Author's personal copy A novel ocean color index to detect oating algae in the global oceans

    E-Print Network [OSTI]

    Meyers, Steven D.

    Author's personal copy A novel ocean color index to detect oating algae in the global oceans December 2008 Received in revised form 15 May 2009 Accepted 23 May 2009 Keywords: Floating Algae Index (FAI Remote sensing Ocean color Climate data record Various types of oating algae have been reported in open

  15. Active Contour Models: Application to Oral Lesion Detection in Color Images

    E-Print Network [OSTI]

    Hamarneh, Ghassan

    .g. classification of cancerous vs. non-cancerous lesions). In order to apply the conventional snake formulation of the patient's oral cavity as true-color digital images. Although complementary techniques exist, based e detection (segmentation) of color images of the oral mucosa is thus an important part of computer-aided oral

  16. Color dispersion and Milky-Way-like reddening among type Ia supernovae

    SciTech Connect (OSTI)

    Scolnic, Daniel M.; Riess, Adam G.; Rodney, Steven A.; Brout, Dillon J.; Jones, David O. [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Foley, Ryan J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Rest, Armin [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

    2014-01-01

    Past analyses of Type Ia supernovae have identified an irreducible scatter of 5%-10% in distance, widely attributed to an intrinsic dispersion in luminosity. Another equally valid source of this scatter is intrinsic dispersion in color. Misidentification of the true source of this scatter can bias both the retrieved color-luminosity relation and cosmological parameter measurements. The size of this bias depends on the magnitude of the intrinsic color dispersion relative to the distribution of colors that correlate with distance. We produce a realistic simulation of a misattribution of intrinsic scatter and find a negative bias in the recovered color-luminosity relation, ?, of ?? ? –1.0 (?33%) and a positive bias in the equation of state parameter, w, of ?w ? +0.04 (?4%). We re-analyze current published datasets with the assumption that the distance scatter is predominantly the result of color. Unlike previous analyses, we find that the data are consistent with a Milky-Way-like reddening law (R{sub V} = 3.1) and that a Milky-Way dust model better predicts the asymmetric color-luminosity trends than the conventional luminosity scatter hypothesis. We also determine that accounting for color variation reduces the correlation between various host galaxy properties and Hubble residuals by ?20%.

  17. COLOR NAMES with Robert Benavente, Maria Vanrell, Cordelia Schmid, Ramon Baldrich,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of image retrieval. A user might query an image search engine for "red cars". The system recognizes 25. (10) Please enter \\offprintinfo{(Title, Edition)}{(Author)} at the beginning of your document. 11 of basic color terms. As we will see, the basic color terms of the English language are black, blue, brown

  18. SYSTEMATIC STUDY OF COLOR SPACES AND COMPONENTS FOR THE SEGMENTATION OF SKY/CLOUD IMAGES

    E-Print Network [OSTI]

    Winkler, Stefan

    ) is a cost-effective means to understanding cloud cover and weather patterns. The accurate segmentation the most suit- able color components for this task. Index Terms-- Remote sensing, Image segmentation, Color in weather prediction, climate modeling, solar irradiation measurement for renew- able energy generation

  19. Color of Scents: Chromatic Stimuli Modulate Odor Responses in the Human Brain

    E-Print Network [OSTI]

    Miall, Chris

    a profound effect on the perception of odors. For example, strawberry-flavored drinks smell more pleasant. For example, both the perceived intensity and pleasantness of an appropriately colored solution (e.g., red--strawberry) is judged as higher than that of an inappropriately colored (e.g., green-- strawberry) or a colorless

  20. An Abelian Ward identity and the vertex corrections to the color superconducting gap

    E-Print Network [OSTI]

    Hao-jie Xu; Qun Wang

    2008-10-13

    We derive an Abelian-like Ward identity in color superconducting phase and calculate vertex corrections to the color superconducting gap. Making use of the Ward identity, we show that subleading order contributions to the gap from vertices are absent for gapped excitations.

  1. Interferometric source of multi-color, multi-beam entangled photons with mirror and mixer

    DOE Patents [OSTI]

    Dress, William B.; Kisner, Roger A.; Richards, Roger K.

    2004-06-01

    53 Systems and methods are described for an interferometric source of multi-color, multi-beam entangled photons. An apparatus includes: a multi-refringent device optically coupled to a source of coherent energy, the multi-refringent device providing a beam of multi-color entangled photons; a condenser device optically coupled to the multi-refringent device, the condenser device i) including a mirror and a mixer and ii) converging two spatially resolved portions of the beam of multi-color entangled photons into a converged multi-color entangled photon beam; a tunable phase adjuster optically coupled to the condenser device, the tunable phase adjuster changing a phase of at least a portion of the converged multi-color entangled photon beam to generate a first interferometeric multi-color entangled photon beam; and a beam splitter optically coupled to the condenser device, the beam splitter combining the first interferometeric multi-color entangled photon beam with a second interferometric multi-color entangled photon beam.

  2. Optical microscope using an interferometric source of two-color, two-beam entangled photons

    DOE Patents [OSTI]

    Dress, William B.; Kisner, Roger A.; Richards, Roger K.

    2004-07-13

    Systems and methods are described for an optical microscope using an interferometric source of multi-color, multi-beam entangled photons. A method includes: downconverting a beam of coherent energy to provide a beam of multi-color entangled photons; converging two spatially resolved portions of the beam of multi-color entangled photons into a converged multi-color entangled photon beam; transforming at least a portion of the converged multi-color entangled photon beam by interaction with a sample to generate an entangled photon specimen beam; and combining the entangled photon specimen beam with an entangled photon reference beam within a single beamsplitter. An apparatus includes: a multi-refringent device providing a beam of multi-color entangled photons; a condenser device optically coupled to the multi-refringent device, the condenser device converging two spatially resolved portions of the beam of multi-color entangled photons into a converged multi-color entangled photon beam; a beam probe director and specimen assembly optically coupled to the condenser device; and a beam splitter optically coupled to the beam probe director and specimen assembly, the beam splitter combining an entangled photon specimen beam from the beam probe director and specimen assembly with an entangled photon reference beam.

  3. Face detection in intelligent ambiences with colored illumination Christina Katsimerou, Judith A. Redi, Ingrid Heynderickx

    E-Print Network [OSTI]

    : intelligent ambiences, adaptive lighting, face detection, skin segmentation, color constancy 1. Introduction of a person in a room from videos and re- sponds adaptively to it with (multi-color) light settings, which. Human face detection is an essential step in the creation of intelligent lighting ambi- ences

  4. Chameleon: A Color-Adaptive Web Browser for Mobile OLED Displays

    E-Print Network [OSTI]

    Zhong, Lin

    Chameleon: A Color-Adaptive Web Browser for Mobile OLED Displays Mian Dong and Lin Zhong Department}@rice.edu ABSTRACT Displays based on organic light-emitting diode (OLED) technology are appearing on many mobile this problem, we present the motivational studies, design, and realization of Chameleon, a color adaptive web

  5. On adaptive non-linearity for color discrimination and chromatic adaptation

    E-Print Network [OSTI]

    Alleysson, David

    the physiology literature that the photoreceptors' response to light is non-linear and adaptive. However, we can corresponding color data. Adaptive non-linearity Photoreceptors are the light-sensitive elements of the humanOn adaptive non-linearity for color discrimination and chromatic adaptation David Alleysson

  6. Optical diversity of thaw ponds in discontinuous permafrost: A model system for water color analysis

    E-Print Network [OSTI]

    Vincent, Warwick F.

    Optical diversity of thaw ponds in discontinuous permafrost: A model system for water color 2011. [1] Permafrost thaw ponds result from the irregular melting and erosion of frozen soils. In the discontinuous permafrost region of Nunavik, Canada, thaw ponds show pronounced differences in color even among

  7. SYNTHETIC SPECTRA AND COLORS OF YOUNG GIANT PLANET ATMOSPHERES: EFFECTS OF INITIAL CONDITIONS AND ATMOSPHERIC METALLICITY

    E-Print Network [OSTI]

    , as giant planets should be warmest, largest, and brightest when they are young, but will cool, contractSYNTHETIC SPECTRA AND COLORS OF YOUNG GIANT PLANET ATMOSPHERES: EFFECTS OF INITIAL CONDITIONS 2008 March 17; accepted 2008 May 7 ABSTRACT We examine the spectra and infrared colors of the cool

  8. Color Removal from Pulp Mill Effluent Using Coal Ash Produced from Georgia Coal Combustion Power Plants

    E-Print Network [OSTI]

    Hutcheon, James M.

    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

  9. On Carbon Star Evolution in the IRAS Two-Color-Diagram

    E-Print Network [OSTI]

    On Carbon Star Evolution in the IRAS Two-Color-Diagram Ryszard Szczerba 1;3 , Matthias Steffen 2 the evolution in the IRAS two-color diagram, starting just before the moment of carbon star formation until the end of their evolution on the AGB. We have adopted the widely accepted scenario that carbon stars

  10. Interactive Offline Tracking for Color Objects Yichen Wei Jian Sun Xiaoou Tang Heung-Yeung Shum

    E-Print Network [OSTI]

    Borgs, Christian

    Interactive Offline Tracking for Color Objects Yichen Wei Jian Sun Xiaoou Tang Heung-Yeung Shum, we present an interactive offline tracking system for generic color objects. The system achieves 60- 100 fps on a 320 × 240 video. The user can therefore easily refine the tracking result

  11. Generation kinetics of color centers in irradiated poly(4-methyl-1-pentene)

    SciTech Connect (OSTI)

    Peng, J. S.; Li, C. L.; Lee, Sanboh; Chou, K. F.

    2011-09-15

    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.

  12. Clouds and Chemistry: Ultracool Dwarf Atmospheric Properties from Optical and Infrared Colors

    E-Print Network [OSTI]

    M. S. Marley; S. Seager; D. Saumon; K. Lodders; A. S. Ackerman; R. Freedman; X Fan

    2001-11-16

    The optical and infrared colors of L and T dwarfs are sensitive to cloud sedimentation and chemical equilibrium processes in their atmospheres. The i'-z' vs. J-K color-color diagram provides a window into diverse atmospheric processes mainly because different chemical processes govern each color, and cloud opacity largely affects J-K but not i'-z'. Using theoretical atmosphere models that include for the first time a self-consistent treatment of cloud formation, we present an interpretation of the i'-z' vs. J-K color trends of known L and T dwarfs. We find that the i'-z' color is extremely sensitive to chemical equilibrium assumptions: chemical equilibrium models accounting for cloud sedimentation predict redder i'-z' colors--by up to 2 magnitudes--than models that neglect sedimentation. We explore the previously known J-K color trends where objects first become redder, then bluer with decreasing effective temperature. Only models that include sedimentation of condensates are able to reproduce these trends. We find that the exact track of a cooling brown in J-K (and i'-z') is very sensitive to the details of clouds, in particular to the efficiency of sedimentation of condensates in its atmosphere. We also find that clouds still affect the strength of the J, H, and K band fluxes of even the coolest T dwarfs. In addition, we predict the locus in the i'-z' vs. J-K color-color diagram of brown dwarfs cooler than yet discovered.

  13. TYPE Ia SUPERNOVA COLORS AND EJECTA VELOCITIES: HIERARCHICAL BAYESIAN REGRESSION WITH NON-GAUSSIAN DISTRIBUTIONS

    SciTech Connect (OSTI)

    Mandel, Kaisey S.; Kirshner, Robert P. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Foley, Ryan J., E-mail: kmandel@cfa.harvard.edu [Astronomy Department, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States)

    2014-12-20

    We investigate the statistical dependence of the peak intrinsic colors of Type Ia supernovae (SNe Ia) on their expansion velocities at maximum light, measured from the Si II ?6355 spectral feature. We construct a new hierarchical Bayesian regression model, accounting for the random effects of intrinsic scatter, measurement error, and reddening by host galaxy dust, and implement a Gibbs sampler and deviance information criteria to estimate the correlation. The method is applied to the apparent colors from BVRI light curves and Si II velocity data for 79 nearby SNe Ia. The apparent color distributions of high-velocity (HV) and normal velocity (NV) supernovae exhibit significant discrepancies for B – V and B – R, but not other colors. Hence, they are likely due to intrinsic color differences originating in the B band, rather than dust reddening. The mean intrinsic B – V and B – R color differences between HV and NV groups are 0.06 ± 0.02 and 0.09 ± 0.02 mag, respectively. A linear model finds significant slopes of –0.021 ± 0.006 and –0.030 ± 0.009 mag (10{sup 3} km s{sup –1}){sup –1} for intrinsic B – V and B – R colors versus velocity, respectively. Because the ejecta velocity distribution is skewed toward high velocities, these effects imply non-Gaussian intrinsic color distributions with skewness up to +0.3. Accounting for the intrinsic-color-velocity correlation results in corrections to A{sub V} extinction estimates as large as –0.12 mag for HV SNe Ia and +0.06 mag for NV events. Velocity measurements from SN Ia spectra have the potential to diminish systematic errors from the confounding of intrinsic colors and dust reddening affecting supernova distances.

  14. H I-SELECTED GALAXIES IN THE SLOAN DIGITAL SKY SURVEY. II. THE COLORS OF GAS-RICH GALAXIES

    E-Print Network [OSTI]

    West, Andrew A.

    We utilize color information for an H I-selected sample of 195 galaxies to explore the star formation histories and physical conditions that produce the observed colors. We show that the H I selection creates a significant ...

  15. Color Variation, Habitat Light, and Background Contrast in Anolis carolinensis along a Geographical Transect in Florida1

    E-Print Network [OSTI]

    Macedonia, Joseph

    Transect in Florida1 JOSEPH M. MACEDONIA,2 ARTHUR C. ECHTERNACHT, AND JUSTIN W. WALGUARNERY Department coloration (e.g., Fleishman et al., 1993; Leal and Fleishman, 2001; Macedonia, 2001). Unlike dewlap colors

  16. Explicit form of quark propagators and gluon self-energies in neutral three-flavor color superconductor

    E-Print Network [OSTI]

    H. Malekzadeh

    2008-10-29

    Enforcing color and electric charge neutrality conditions on the three-flavor color superconducting matter, I derive the explicit form of the quark propagators and the gluon self-energies for the gapless and the ordinary color-flavor-locked phases.

  17. Thermal Infrared 3--5 $?$m Colors of Obscured and Unobscured Active Galactic Nuclei

    E-Print Network [OSTI]

    Masatoshi Imanishi

    2001-01-06

    Thermal infrared photometry in the $L$- and $M'$-band and $L - M'$ colors of type-1 and type-2 active galactic nuclei (AGNs) are presented. After combining our observations with photometric data at similar wavelengths taken from the literature, we find that the excess of $L - M'$ colors of type-2 AGNs (37 sources, 50 data points) relative to type-1 AGNs (27 sources, 36 data points), due to dust extinction, is statistically detectable, but very small. We next investigate the $L - M'$ colors of type-2 AGNs by separating less dust-obscured type-2 AGNs and highly dust-obscured type-2 AGNs. In both cases, the $L - M'$ colors are similar to the intrinsic $L - M'$ color of unobscured AGNs, and the $L - M'$ color excess of the latter highly dust-obscured type-2 AGNs due to dust extinction is much smaller than that expected from the Galactic dust extinction curve. Contamination from starbursts and the time lag of flux variation are unlikely to explain this small $L - M'$ color excess, which is best explained if the dust extinction curve in the close vicinity of AGNs is fairly flat at 3--5 $\\mu$m as a result of a size increase of the absorbing dust grains through coagulation.

  18. Characterization of Structural and Pigmentary Colors in Common Emigrant (Catopsilia Pomona) Butterfly

    SciTech Connect (OSTI)

    Ghate, Ekata; Kulkarni, G. R.; Bhoraskar, S. V.; Adhi, K. P. [Department of Physics, University of Pune, Pune-07 (India)

    2011-10-20

    Study of structural colors in case of insects and butterflies is important for their biomimic and biophotonics applications. Structural color is the color which is produced by physical structures and their interaction with light while pigmentary color is produced by absorption of light by pigments. Common Emigrant butterfly is widely distributed in India. It is of moderate size with wing span of about 60-80 mm. The wings are broadly white with yellow or sulphur yellow coloration at places as well as few dark black patches. It belongs to family Pieridae. A study of structural color in case of Common Emigrant butterfly has been carried out in the present work. The characterization of wing color was performed using absorption spectroscopy. Scanning electron microscopic study of the wings of Common Emigrant butterfly showed that three different types of scales are present on the wing surface dorsally. Diffracting structures are present in certain parts of the surfaces of the various scales. Bead like structures are embedded in the intricate structures of the scales. Absorption spectra revealed that a strong absorption peak is seen in the UV-range. Crystalline structure of beads was confirmed by the X-ray diffraction analysis.

  19. Solid-state calculation of crystalline color superconductivity

    E-Print Network [OSTI]

    Gaoqing Cao; Lianyi He; Pengfei Zhuang

    2015-06-15

    It is generally believed that the inhomogeneous Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase appears in a color superconductor when the pairing between different quark flavors is under the circumstances of mismatched Fermi surfaces. However, the real crystal structure of the LOFF phase is still unclear because an exact treatment of 3D crystal structures is rather difficult. In this work we present a solid-state-like calculation of the ground-state energy of the body-centered cubic (BCC) structure for two-flavor pairing by diagonalizing the Hamiltonian matrix in the Bloch space without assuming a small amplitude of the order parameter. We develop a computational scheme to overcome the difficulties in diagonalizing huge matrices. Our results show that the BCC structure is energetically more favorable than the 1D modulation in a narrow window around the conventional LOFF-normal phase transition point, which indicates the significance of the higher-order terms in the Ginzburg-Landau approach.

  20. Collective modes in the color flavor-locked phase.

    SciTech Connect (OSTI)

    Anglani, R.; Mannarelli, M.; Ruggieri, M. (Physics); (Univ. of Barcelona); (Kyoto Univ.); (Italian National Research Council)

    2011-05-17

    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.

  1. Non-linear BFKL dynamics: color screening vs. gluon fusion

    E-Print Network [OSTI]

    R. Fiore; P. V. Sasorov; V. R. Zoller

    2012-11-01

    A feasible mechanism of unitarization of amplitudes of deep inelastic scattering at small values of Bjorken $x$ is the gluon fusion. However, its efficiency depends crucially on the vacuum color screening effect which accompanies the multiplication and the diffusion of BFKL gluons from small to large distances. From the fits to lattice data on field strength correlators the propagation length of perturbative gluons is $R_c\\simeq 0.2-0.3$ fermi. The probability to find a perturbative gluon with short propagation length at large distances is suppressed exponentially. It changes the pattern of (dif)fusion dramatically. The magnitude of the fusion effect appears to be controlled by the new dimensionless parameter $\\sim R_c^2/8B$, with the diffraction cone slope $B$ standing for the characteristic size of the interaction region. It should slowly $\\propto 1/\\ln Q^2$ decrease at large $Q^2$. Smallness of the ratio $R_c^2/8B$ makes the non-linear effects rather weak even at lowest Bjorken $x$ available at HERA. We report the results of our studies of the non-linear BFKL equation which has been generalized to incorporate the running coupling and the screening radius $R_c$ as the infrared regulator.

  2. Boson mappings applied to the two-color delta model

    SciTech Connect (OSTI)

    Dukelsky, J. (Departamento de Fisica Teorica, Universidad Autonoma de Madrid, 28049 Madrid (Spain)); Pittel, S. (Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States))

    1992-04-01

    We study several aspects of a two-color delta model of interacting quarks, with the purpose of extracting information of relevance to real quark models of nuclei. We first describe a BCS treatment of the quark pair correlations that arise in the model at low densities and demonstrate that the rms radius of the dominant correlated pairs increases in the presence of the medium. We then consider the application of a Dyson boson mapping to the model and show that it incorporates, at the level of the Hartree-Bose approximation, the pair clustering dynamics of quark BCS. However, the collective bosons that emerge do not have the same structure as the correlated BCS pairs. The mapping also leads to a short-range repulsive interaction between the collective bosons, which we derive in both momentum and coordinate space. The additional correlations that result from this repulsive boson interaction can in principle be incorporated through a Brueckner treatment of the mapped boson Hamiltonian.

  3. Why Cryptosystems Fail Ross Anderson

    E-Print Network [OSTI]

    Perrig, Adrian

    and other organisations to keep in- formation secure. It is a complex subject, and its national security. In this article, we present the results of a survey of the failure modes of retail banking systems, which, there is no such learning mechanism. The history of the subject ([K1], [W1]) shows the same mistakes being made over

  4. Colorful plane vortices and Chiral Symmetry Breaking in $SU(2)$ Lattice Gauge Theory

    E-Print Network [OSTI]

    Seyed Mohsen Hosseini Nejad; Manfried Faber; Roman Höllwieser

    2015-08-11

    We investigate plane vortices with color structure. The topological charge and gauge action of such colorful plane vortices are studied in the continuum and on the lattice. These configurations are vacuum to vacuum transitions changing the winding number between the two vacua, leading to a topological charge $Q=-1$ in the continuum. After growing temporal extent of these vortices, the lattice topological charge approaches $-1$ and the index theorem is fulfilled. We analyze the low lying modes of the overlap Dirac operator in the background of these colorful plane vortices and compare them with those of spherical vortices. They show characteristic properties for spontaneous chiral symmetry breaking.

  5. Colorful plane vortices and Chiral Symmetry Breaking in $SU(2)$ Lattice Gauge Theory

    E-Print Network [OSTI]

    Seyed Mohsen Hosseini Nejad; Manfried Faber; Roman Höllwieser

    2015-08-05

    We investigate plane vortices with color structure. The topological charge and gauge action of such colorful plane vortices are studied in the continuum and on the lattice. These configurations are vacuum to vacuum transitions changing the winding number between the two vacua, leading to a topological charge $Q=-1$ in the continuum. After growing temporal extent of these vortices, the lattice topological charge approaches $-1$ and the index theorem is fulfilled. We analyze the low lying modes of the overlap Dirac operator in the background of these colorful plane vortices and compare them with those of spherical vortices. They show characteristic properties for spontaneous chiral symmetry breaking.

  6. Colorful plane vortices and Chiral Symmetry Breaking in $SU(2)$ Lattice Gauge Theory

    E-Print Network [OSTI]

    Seyed Mohsen Hosseini Nejad; Manfried Faber; Roman Höllwieser

    2015-09-25

    We investigate plane vortices with color structure. The topological charge and gauge action of such colorful plane vortices are studied in the continuum and on the lattice. These configurations are vacuum to vacuum transitions changing the winding number between the two vacua, leading to a topological charge $Q=-1$ in the continuum. After growing temporal extent of these vortices, the lattice topological charge approaches $-1$ and the index theorem is fulfilled. We analyze the low lying modes of the overlap Dirac operator in the background of these colorful plane vortices and compare them with those of spherical vortices. They show characteristic properties for spontaneous chiral symmetry breaking.

  7. Thermalization of color gauge fields in high energy heavy ion collisions

    SciTech Connect (OSTI)

    Iwazaki, Aiichi [International Politics Economics, Nishogakusha University, Ohi Kashiwa Chiba 277-8585 (Japan)

    2008-03-15

    We discuss the quantum mechanical decay of the color magnetic field generated initially during high-energy heavy-ion collisions. The decay is caused by Nielsen-Olesen unstable modes and is accomplished possibly in a period <1 fm/c. We show that the decay products (i.e., incoherent gluons) may be thermalized in a sufficiently short period (<1 fm/c). The precise determination of the period is made by calculating the two-point function of the color magnetic field in a color glass condensate model.

  8. Optical Spectroscopy of 2MASS Color-Selected Ultracool Subdwarfs

    E-Print Network [OSTI]

    Adam J. Burgasser; Kelle L. Cruz; J. Davy Kirkpatrick

    2006-10-03

    We present Gemini GMOS and Magellan LDSS-3 optical spectroscopy for seven ultracool subdwarf candidates color-selected from the Two Micron All Sky Survey. Five are identified as late-type subdwarfs, including the previously reported sdM9.5 SSSPM 1013-1356 and L subdwarf 2MASS 1626+3925, and a new sdM8.5 2MASS 0142+0523. 2MASS 1640+1231 exhibits spectral features intermediate between a late-type M dwarf and subdwarf, similar to the previously identified high proper motion star SSSPM 1444-2019, and we classify both sources as mild subdwarfs, d/sdM9. 2MASS 1227-0447 is a new ultracool extreme subdwarf, spectral type esdM7.5. Spectral model fits yield metallicities that are consistent with these metallicity classifications. Effective temperatures track with numerical subtype within a metallicity class, although they are not equivalent across metallicity classes. As a first attempt to delineate subtypes in the L subdwarf regime we classify 2MASS 1626+3925 and the previously identified 2MASS 0532+8246 as sdL4 and sdL7, respectively, to reflect their similarity to equivalently classified, solar metallicity L-type field dwarfs over the 7300-9000 A region. We also detail preliminary criteria for distinguishing L subdwarf optical spectra as a roadmap for defining this new spectral class. The strong TiO bands and Ca I and Ti I lines in the spectrum of 2MASS 1626+3925 provide further evidence that condensate formation may be inhibited in metal-deficient L subdwarfs. We conclude with a compendium of currently known, optically classified ultracool subdwarfs.

  9. An assessment of remote sensing algorithms for colored dissolved organic matter in complex freshwater environments

    E-Print Network [OSTI]

    Yu, Qian

    An assessment of remote sensing algorithms for colored dissolved organic matter in complex October 2013 Accepted 12 October 2013 Available online xxxx Keywords: CDOM Algorithm Freshwater environments Saginaw River Lake Huron This study evaluated fifteen algorithms representing four major

  10. Color neutrality effects in the phase diagram of the Polyakov--Nambu--Jona-Lasinio model

    SciTech Connect (OSTI)

    Dumm, D. Gomez; Blaschke, D. B.; Grunfeld, A. G.; Scoccola, N. N.

    2008-12-01

    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.

  11. Amplification of interference color by using liquid crystal for protein detection

    SciTech Connect (OSTI)

    Zhu, Qingdi; Yang, Kun-Lin

    2013-12-09

    Micrometer-sized, periodic protein lines printed on a solid surface cause interference color which is invisible to the naked eye. However, the interference color can be amplified by using a thin layer of liquid crystal (LC) covered on the surface to form a phase diffraction grating. Strong interference color can thus be observed under ambient light. By using the LC-amplified interference color, we demonstrate naked-eye detection of a model protein—immunoglobulin G (IgG). Limit of detection can reach 20??g/ml of IgG without using any instrumentation. This detection method is potentially useful for the development of low-cost and portable biosensors.

  12. Tracing the origin of azimuthal gluon correlations in the color glass condensate

    E-Print Network [OSTI]

    Lappi, T; Schlichting, S; Venugopalan, R

    2015-01-01

    We examine the origins of azimuthal correlations observed in high energy proton-nucleus collisions by considering the simple example of the scattering of uncorrelated partons off color fields in a large nucleus. We demonstrate how the physics of fluctuating color fields in the color glass condensate (CGC) effective theory generates these azimuthal multiparticle correlations and compute the corresponding Fourier coefficients v_n within different CGC approximation schemes. We discuss in detail the qualitative and quantitative differences between the different schemes. We will show how a recently introduced color field domain model that captures key features of the observed azimuthal correlations can be understood in the CGC effective theory as a model of non-Gaussian correlations in the target nucleus.

  13. Physics 344 Lab 4 Stellar Photometry and the Color-Magnitude Diagram

    E-Print Network [OSTI]

    Gustafsson, Torgny

    1 Physics 344 Lab 4 Stellar Photometry and the Color-Magnitude Diagram Observing: October 10 ­ 23 in an image, perform aperture photometry on them, and then measure the average shape of a star in the image

  14. Color and flavor stability of strained carrots as affected by genotype and processing 

    E-Print Network [OSTI]

    Talcott, Stephen T.

    1997-01-01

    ). Samples were stored for various times and temperatures and monitored periodically for chemical and sensory attributes. Changes in color, soluble phenolics, carotenoids, molecular weight, sugars and pH were measured during storage. Sensory attributes were...

  15. Two-Color interferometry as a fluctuation diagnostic on Alcator C-Mod

    E-Print Network [OSTI]

    Kasten, Cale Phillip

    2013-01-01

    The two-color interferometer diagnostic on Alcator C-Mod has been upgraded to measure line-integrated electron density fluctuations for turbulence and transport studies. Heterodyne signals from ten vertical-viewing CO2 ...

  16. Nanotechnology in our Daily Life Iridescent car paint: Based on interference colors

    E-Print Network [OSTI]

    Himpsel, Franz J.

    Nanotechnology in our Daily Life Iridescent car paint: Based on interference colors (like a butterly, no bleaching after 5 years Miami) #12;Nanotechnology on our Desktops Hard Disk Sensor Medium

  17. Digital palettes : assessing cultural and industry specific color usage in website design

    E-Print Network [OSTI]

    Tang, Annie Yue

    2014-01-01

    It is without a doubt that color is one of the most important and distinctive features of any physical or digital product. With the expansion of the world wide web and increasingly new digital media and online technologies, ...

  18. Baryonic Matter Onset in Two-Color QCD with Heavy Quarks

    E-Print Network [OSTI]

    Scior, Philipp

    2015-01-01

    We study the cold and dense regime in the phase diagram of two-color QCD with heavy quarks within a three-dimensional effective theory for Polyakov loops. This theory is derived from two-color QCD in a combined strong-coupling and hopping expansion. In particular, we study the onset of diquark density as the finite-density transition of the bosonic baryons in the two-color world. In contrast to previous studies of heavy dense QCD, our zero-temperature extrapolations are consistent with a continuous transition without binding energy. They thus provide evidence that the effective theory for heavy quarks is capable of describing the characteristic differences between diquark condensation in two-color QCD and the liquid-gas transition of nuclear matter in QCD.

  19. Baryonic Matter Onset in Two-Color QCD with Heavy Quarks

    E-Print Network [OSTI]

    Philipp Scior; Lorenz von Smekal

    2015-08-03

    We study the cold and dense regime in the phase diagram of two-color QCD with heavy quarks within a three-dimensional effective theory for Polyakov loops. This theory is derived from two-color QCD in a combined strong-coupling and hopping expansion. In particular, we study the onset of diquark density as the finite-density transition of the bosonic baryons in the two-color world. In contrast to previous studies of heavy dense QCD, our zero-temperature extrapolations are consistent with a continuous transition without binding energy. They thus provide evidence that the effective theory for heavy quarks is capable of describing the characteristic differences between diquark condensation in two-color QCD and the liquid-gas transition of nuclear matter in QCD.

  20. Self-Calibrating Wide Color Gamut High Dynamic Range Display Helge Seetzen1/2

    E-Print Network [OSTI]

    Heidrich, Wolfgang

    those using light emitting diodes. This paper describes a combination of sensor mechanisms colored light elements are used. This is especially true if light emitting diodes (LEDs) are used instead

  1. GreenVis: Energy-Saving Color Schemes for Sequential Data Visualization on OLED Displays

    E-Print Network [OSTI]

    North Virginia Tech Blacksburg, VA north@cs.vt.edu ABSTRACT The organic light emitting diode (OLED, Color Scheme, Visualization 1. INTRODUCTION The organic light-emitting diode (OLED) display is an emerg

  2. Hybrid cinematics : rethinking the role of filmmakers of color in American cinema

    E-Print Network [OSTI]

    Daniels, Tracy K. (Tracy Kim)

    2008-01-01

    This thesis explores the practices of filmmakers of color in the United States who employ strategies to circumvent industrial, financial and cultural barriers to production and distribution. To overcome these barriers, ...

  3. CREATING THE COLOR LINE AND CONFRONTING JIM CROW: CIVIL RIGHTS IN MIDDLE AMERICA: 1850-1900

    E-Print Network [OSTI]

    Peavler, David J.

    2008-08-18

    This dissertation examines the creation of the color line and the ways that African American communities confronted it throughout Kansas, Iowa, and Nebraska. A detailed search of school board minutes, newspapers, court ...

  4. Racism with Antiracists: Color-Conscious Racism and the Unintentional Persistence of Inequality

    E-Print Network [OSTI]

    Hughey, Matthew W.

    2007-01-01

    The latest turn in the sociological study of white racism argues that the paradigm of color-blind racism is the predominant form by which many whites unintentionally reproduce racist ideology due to ignorance, or dismissal, of structural racism...

  5. Color Key 1/25/2012 4.1.1 PTCS and Heat Pump Measures

    E-Print Network [OSTI]

    Color Key 1/25/2012 4.1.1 PTCS and Heat Pump Measures Staff Summary of Ecotope Recommendation: Staff Response and Recommended Action: 4.1.3 Ductless Heat Pumps Staff Summary of Ecotope Recommendation

  6. Cultural Socialization Process of Effective Educators of Students of Color in an Elementary School District 

    E-Print Network [OSTI]

    Henry, Patricia May

    2009-05-15

    The purpose of this life history study was to identify the experiences that influence the cultural socialization process of teachers and the factors that contribute to the effective instruction of students of color. Six ...

  7. Predation Cost of Conspicuous Male Coloration in Collared Lizards (Crotaphytus collaris): An Experimental Test Using

    E-Print Network [OSTI]

    Macedonia, Joseph

    ): An Experimental Test Using Clay-Covered Model Lizards Jerry F. Husak*, Joseph M. Macedonia , Stanley F. Fox to explain population level differences in coloration (Baird et al. 1997; Macedonia et al. 2002; Kwiatkowski

  8. Topological color codes on Union Jack lattices: a stable implementation of the whole Clifford group 

    E-Print Network [OSTI]

    Katzgraber, Helmut G.; Bombin, H.; Andrist, Ruben S.; Martin-Delgado, M. A.

    2010-01-01

    We study the error threshold of topological color codes on Union Jack lattices that allow for the full implementation of the whole Clifford group of quantum gates. After mapping the error-correction process onto a statistical ...

  9. Solar DEM Models : A solar image in color band b, mn pixels,

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    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

  10. Aplicacion de PCA y tecnicas bayesianas a la clasificacion de pixeles basada en color

    E-Print Network [OSTI]

    Granada, Universidad de

    Computadores, Electr´onica y Tecnolog´ia Electr´onica Universidad de C´ordoba. Departamento de Ciencias de la´on de un p´ixel en base a informaci´on de color y, por ´ultimo, la clasificaci´on en base a los estad a informaci´on de color y se clasificar´an los p´ixeles. Para ello existen varios clasificadores, siendo

  11. THE COLOR DIFFERENCES OF KUIPER BELT OBJECTS IN RESONANCE WITH NEPTUNE

    SciTech Connect (OSTI)

    Sheppard, Scott S.

    2012-12-01

    The optical colors of 58 objects in mean motion resonance with Neptune were obtained. The various Neptune resonant populations were found to have significantly different surface color distributions. The 5:3 and 7:4 resonances have semimajor axes near the middle of the main Kuiper Belt and both are dominated by ultra-red material (spectral gradient: S {approx}> 25). The 5:3 and 7:4 resonances have statistically the same color distribution as the low-inclination 'cold' classical belt. The inner 4:3 and distant 5:2 resonances have objects with mostly moderately red colors (S {approx} 15), similar to the scattered and detached disk populations. The 2:1 resonance, which is near the outer edge of the main Kuiper Belt, has a large range of colors with similar numbers of moderately red and ultra-red objects at all inclinations. The 2:1 resonance was also found to have a very rare neutral colored object showing that the 2:1 resonance is really a mix of all object types. The inner 3:2 resonance, like the outer 2:1, has a large range of objects from neutral to ultra-red. The Neptune Trojans (1:1 resonance) are only slightly red (S {approx} 9), similar to the Jupiter Trojans. The inner 5:4 resonance only has four objects with measured colors but shows equal numbers of ultra-red and moderately red objects. The 9:5, 12:5, 7:3, 3:1, and 11:3 resonances do not have reliable color distribution statistics since few objects have been observed in these resonances, though it appears noteworthy that all three of the measured 3:1 objects have only moderately red colors, similar to the 4:3 and 5:2 resonances. The different color distributions of objects in mean motion resonance with Neptune are likely a result from the disruption of the primordial Kuiper Belt from the scattering and migration of the giant planets. The few low-inclination objects known in the outer 2:1 and 5:2 resonances are mostly only moderately red. This suggests if the 2:1 and 5:2 have a cold low-inclination component, the objects likely had a significantly different origin than the ultra-red-dominated cold components of the cold classical belt and 5:3 and 7:4 resonances.

  12. Dissecting the Red Sequence--I. Star Formation Histories of Quiescent Galaxies: The Color-Magnitude vs. the Color-Sigma Relation

    E-Print Network [OSTI]

    Genevieve J. Graves; S. M. Faber; Ricardo P. Schiavon

    2008-10-23

    We use a sample of ~16,000 non-emission line galaxies from the SDSS to investigate the physical parameters underlying the well-known color-magnitude and color-sigma relations. Galaxies are sorted in terms of velocity dispersions (sigma), luminosity (L), and color, and their spectra are stacked to obtain very high S/N mean spectra for stellar population analysis. This allows us to map mean luminosity-weighted ages, [Fe/H], [Mg/H], and [Mg/Fe] in sigma-L-color space. Our first result is that there are many different red sequences, with age, [Fe/H], [Mg/H], and [Mg/Fe] showing different amounts of slope and scatter when plotted versus sigma, L, or color. These behaviors are explained if the star formation histories of the galaxies populate a two-dimensional parameter space. One parameter is the previously well-known increase in age, [Fe/H], [Mg/H], and [Mg/Fe] with sigma. In addition to this, we find systematic variations at fixed sigma, such that more luminous galaxies are younger, more Fe-rich, but have lower [Mg/Fe] than their fainter counterparts. The main sigma trends support a paradigm in which more massive galaxies form their stars more rapidly and at earlier times than less massive galaxies. The trends at fixed sigma are consistent with scatter in the duration of star formation for galaxies at a given sigma. The co-variation of stellar population properties and L residuals at fixed sigma that we present here has a number of implications: it explains the differing behavior of stellar population indicators when investigated versus sigma as compared to L, and it reveals that L is not as efficient as sigma for indicating galaxy "size" in stellar population studies.

  13. Prognostication of LED Remaining Useful Life and Color Stability in the Presence of Contamination

    SciTech Connect (OSTI)

    Lall, Pradeep; Zang, Hao; Davis, J Lynn

    2015-06-22

    The reliability of LED products may be affected by both luminous flux drop and color shift. Previous research on the topic focuses on either luminous maintenance or color shift. However, luminous flux degradation usually takes very long time to observe in LEDs under normal operating conditions. In this paper, the impact of a VOC (volatile organic compound) contaminated luminous flux and color stability are examined. As a result, both luminous degradation and color shift had been recorded in a short time. Test samples are white, phosphorconverted, high-power LED packages. Absolute radiant flux is measured with integrating sphere system to calculate the luminous flux. Luminous flux degradation and color shift distance were plotted versus aging time to show the degradation pattern. A prognostic health management (PHM) method based on the state variables and state estimator have been proposed in this paper. In this PHM framework, unscented kalman filter (UKF) was deployed as the carrier of all states. During the estimation process, third order dynamic transfer function was used to implement the PHM framework. Both of the luminous flux and color shift distance have been used as the state variable with the same PHM framework to exam the robustness of the method. Predicted remaining useful life is calculated at every measurement point to compare with the tested remaining useful life. The result shows that state estimator can be used as the method for the PHM of LED degradation with respect to both luminous flux and color shift distance. The prediction of remaining useful life of LED package, made by the states estimator and data driven approach, falls in the acceptable errorbounds (20%) after a short training of the estimator.

  14. PRIMUS: Galaxy clustering as a function of luminosity and color at 0.2 < z < 1

    SciTech Connect (OSTI)

    Skibba, Ramin A.; Smith, M. Stephen M.; Coil, Alison L.; Mendez, Alexander J.; Moustakas, John; Aird, James; Blanton, Michael R.; Bray, Aaron D.; Eisenstein, Daniel J.; Cool, Richard J.; Wong, Kenneth C.; Zhu, Guangtun

    2014-04-01

    We present measurements of the luminosity and color-dependence of galaxy clustering at 0.2 < z < 1.0 in the Prism Multi-object Survey. We quantify the clustering with the redshift-space and projected two-point correlation functions, ?(r{sub p} , ?) and w{sub p} (r{sub p} ), using volume-limited samples constructed from a parent sample of over ?130, 000 galaxies with robust redshifts in seven independent fields covering 9 deg{sup 2} of sky. We quantify how the scale-dependent clustering amplitude increases with increasing luminosity and redder color, with relatively small errors over large volumes. We find that red galaxies have stronger small-scale (0.1 Mpc h {sup –1} < r{sub p} < 1 Mpc h {sup –1}) clustering and steeper correlation functions compared to blue galaxies, as well as a strong color dependent clustering within the red sequence alone. We interpret our measured clustering trends in terms of galaxy bias and obtain values of b {sub gal} ? 0.9-2.5, quantifying how galaxies are biased tracers of dark matter depending on their luminosity and color. We also interpret the color dependence with mock catalogs, and find that the clustering of blue galaxies is nearly constant with color, while redder galaxies have stronger clustering in the one-halo term due to a higher satellite galaxy fraction. In addition, we measure the evolution of the clustering strength and bias, and we do not detect statistically significant departures from passive evolution. We argue that the luminosity- and color-environment (or halo mass) relations of galaxies have not significantly evolved since z ? 1. Finally, using jackknife subsampling methods, we find that sampling fluctuations are important and that the COSMOS field is generally an outlier, due to having more overdense structures than other fields; we find that 'cosmic variance' can be a significant source of uncertainty for high-redshift clustering measurements.

  15. Lithium-ion batteries can fail and catch fire when overcharged, exposed to high temperature or short-circuited due to the highly flammable organic liquid used in the electrolyte. Using inorganic

    E-Print Network [OSTI]

    Lithium-ion batteries can fail and catch fire when overcharged, exposed to high temperature for Lithium-Ion Battery Solid Electrolytes Ting Yang Advisor: Dr. Candace K. Chan July 11, 2012; 2:00 PM; ISTB was explored. Amorphous lithium niobate nanowires were synthesized through the decomposition of a niobium

  16. The recent accumulation of snow in many areas throughout New York state has caused some agricultural buildings to fail. Failure can be the result of several items linked to the snow load present

    E-Print Network [OSTI]

    Walter, M.Todd

    1 The recent accumulation of snow in many areas throughout New York state has caused some agricultural buildings to fail. Failure can be the result of several items linked to the snow load present construction · Actual snow load exceeds design snow load · Imbalance of snow load on roof · Failure of one key

  17. Optical active devices fail to operate in a pre-determined manner when unwanted reflections are launched into them. An optical isolator plays an essential role in protecting optical devices

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Abstract Optical active devices fail to operate in a pre-determined manner when unwanted reflections are launched into them. An optical isolator plays an essential role in protecting optical devices from unwanted reflections. Commercially available optical isolators based on a magneto-optic Faraday

  18. Interesting features in the combined Galex and Sloan color diagrams of solar-like galactic populations

    SciTech Connect (OSTI)

    Smith, Myron A.; Shiao, Bernard; Bianchi, Luciana E-mail: shiao@stsci.edu

    2014-06-01

    We report on intriguing photometric properties of Galactic stars observed in the Galaxy Evolution Explorer (GALEX) satellite's far-UV (FUV) and near-UV (NUV) bandpasses, as well as from the ground-based Sloan Digital Sky Survey (SDSS) and the Kepler Input Catalog. The first property is that the (FUV – NUV) color distribution of stars in the Kepler field consists of two well-separated peaks. A second and more perplexing property is that for stars with spectral types G or later the mean (FUV – NUV) color becomes much bluer, contrary to expectation. Investigating this tendency further, we found in two samples of mid-F through K type stars that 17%-22% of them exhibit FUV excesses relative to their NUV fluxes and spectral types. A correction for FUV incompleteness of the FUV magnitude-limited star sample brings this ratio to 14%-18%. Nearly the same fractions are also discovered among members of the Kepler Eclipsing Binary Catalog and in the published list of Kepler Objects of Interest. These UV-excess ('UVe') colors are confirmed by the negative UV continuum slopes in GALEX spectra of members of the population. The SDSS spectra of some UVe stars exhibit metallic line weakening, especially in the blue. This suggests an enhanced contribution of UV flux relative to photospheric flux of a solar-type single star. We consider the possibility that the UV excesses originate from various types of hot stars, including white dwarf DA and sdB stars, binaries, and strong chromosphere stars that are young or in active binaries. The space density of compact stars is too low to explain the observed frequency of the UVe stars. Our model atmosphere-derived simulations of colors for binaries with main-sequence pairs with a hot secondary demonstrate that the color loci conflict with the observed sequence. As a preferred alternative we are left with the active chromospheres explanation, whether in active close binaries or young single stars, despite the expected paucity of young, chromospherically active stars in the field. We also address a third perplexing color property, namely, the presence of a prominent island of 'UV red' stars surrounded by 'UV blue' stars in the diagnostic (NUV–g), (g – i) color diagram. We find that the subpopulation composing this island is mainly horizontal branch stars. These objects do not exhibit UV excesses and therefore have UV colors typical for their spectral types. This subpopulation appears 'red' in the UV only because the stars' colors are not pulled to the blue by the inclusion of UVe stars.

  19. Color Profiles of Disk Galaxies since z~1: Probing Outer Disk Formation Scenarios

    E-Print Network [OSTI]

    Ruyman Azzollini; Ignacio Trujillo; John E. Beckman

    2008-04-15

    We present deep color profiles for a sample of 415 disk galaxies within the redshift range 0.1color. We find that objects which show a truncation in their stellar disk (Type II objects) usually show a minimum in their color profile at the break, or very near to it, with a maximum to minimum amplitude in color of <~0.2 mag/arcsec^2, a feature which is persistent through the explored range of redshifts (i.e. in the last ~8 Gyr). This color structure is in qualitative agreement with recent model expectations (Roskar et al. 2008) where the break of the surface brightness profiles is the result of the interplay between a radial star formation cut-off and a redistribution of stellar mass by secular processes.

  20. Color Profiles of Disk Galaxies since z~1: Probing Outer Disk Formation Scenarios

    E-Print Network [OSTI]

    Azzollini, Ruyman; Beckman, John E

    2008-01-01

    We present deep color profiles for a sample of 415 disk galaxies within the redshift range 0.1color. We find that objects which show a truncation in their stellar disk (Type II objects) usually show a minimum in their color profile at the break, or very near to it, with a maximum to minimum amplitude in color of <~0.2 mag/arcsec^2, a feature which is persistent through the explored range of redshifts (i.e. in the last ~8 Gyr). This color structure is in qualitative agreement with recent model expectations (Roskar et al. 2008) where the break of the surface brightness profiles is the result of the interplay between a radial star formation cut-off and a redistribution of stellar mass by secular processes.

  1. The differing magnitude distributions of the two Jupiter Trojan color populations

    SciTech Connect (OSTI)

    Wong, Ian; Brown, Michael E.; Emery, Joshua P.

    2014-12-01

    The Jupiter Trojans are a significant population of minor bodies in the middle solar system that have garnered substantial interest in recent years. Several spectroscopic studies of these objects have revealed notable bimodalities with respect to near-infrared spectra, infrared albedo, and color, which suggest the existence of two distinct groups among the Trojan population. In this paper, we analyze the magnitude distributions of these two groups, which we refer to as the red and less red color populations. By compiling spectral and photometric data from several previous works, we show that the observed bimodalities are self-consistent and categorize 221 of the 842 Trojans with absolute magnitudes in the range H<12.3 into the two color populations. We demonstrate that the magnitude distributions of the two color populations are distinct to a high confidence level (>95%) and fit them individually to a broken power law, with special attention given to evaluating and correcting for incompleteness in the Trojan catalog as well as incompleteness in our categorization of objects. A comparison of the best-fit curves shows that the faint-end power-law slopes are markedly different for the two color populations, which indicates that the red and less red Trojans likely formed in different locations. We propose a few hypotheses for the origin and evolution of the Trojan population based on the analyzed data.

  2. Detection of Large Color Variation of Potentially Hazardous Asteroid (297274) 1996 SK

    E-Print Network [OSTI]

    Lin, Chien-Hsien; Lin, Zhong-Yi; Yoshida, Fumi; Cheng, Yu-Chi

    2013-01-01

    Low-inclination Near-Earth Asteroid (297274) 1996 SK, which is also classified as a Potentially Hazardous Asteroid, has a highly eccentric orbit. It was studied by multi-wavelength photometry within the framework of an NEA color survey at the Lulin Observatory. We report here the finding of large color variation across the surface of (297274) 1996 SK within one asteroidal rotation period of $4.656\\pm0.122$ hours and classify it as a S-type asteroid according to its average colors of $B-V=0.767\\pm0.033$, $V-R=0.482\\pm0.021$, $V-I=0.801\\pm0.025$ and the corresponding relative reflectance spectrum. It might be indicative of differential space weathering effect or compositional inhomogeneity of the surface materials.

  3. Indirect search for color octet electron at next generation linear colliders

    E-Print Network [OSTI]

    Akay, A N; Sahin, M; Sultansoy, S

    2010-01-01

    In this study we investigated indirect manifestations of color octet electron at the next generation linear colliders: International Linear Collider (ILC) and Compact Linear Collider (CLIC). Namely, production of two gluons via color octet electron exchange is considered. Signal and background analysis have been performed taking into account initial state radiation and beamstrahlung. We show that color octet electron (e_(8)) manifestation will be seen upto M(e_(8))=1.75 TeV and 1.70 TeV at ILC and CLIC with sqrt(s)=0.5 TeV, respectively. CLIC with sqrt(s)=3 TeV will be sensitive upto M(e_(8)=6.88 TeV.

  4. Indirect search for color octet electron at next generation linear colliders

    E-Print Network [OSTI]

    A. N. Akay; H. Karadeniz; M. Sahin; S. Sultansoy

    2011-04-06

    In this study we investigated indirect manifestations of color octet electron at the next generation linear colliders: International Linear Collider (ILC) and Compact Linear Collider (CLIC). Namely, production of two gluons via color octet electron exchange is considered. Signal and background analysis have been performed taking into account initial state radiation and beamstrahlung. We show that color octet electron (e_(8)) manifestation will be seen upto M(e_(8))=1.75 TeV and 1.70 TeV at ILC and CLIC with sqrt(s)=0.5 TeV, respectively. CLIC with sqrt(s)=3 TeV will be sensitive upto M(e_(8))=6.88 TeV.

  5. Optofluidic-Tunable Color Filters And Spectroscopy Based On Liquid-Crystal Microflows

    SciTech Connect (OSTI)

    Cuennet, J. G.; Vasdekis, Andreas E.; Psaltis, D.

    2013-05-24

    The integration of color filters with microfluidics has attracted substantial attention in recent years, for on-chip absorption, fluorescence, or Raman analysis. We describe such tunable filters based on the micro-flow of liquid crystals. The filter operation is based on the wavelength dependent liquid crystal birefringence that can be tuned by modifying the flow velocity field in the microchannel. The latter is possible both temporally and spatially by varying the inlet pressure and the channel geometry respectively. We explored the use of these optofluidic filters for on-chip absorption spectroscopy; by integrating the distance dependent color filter with a dye-filled micro-channel, the absorption spectrum of a dye could be measured. Liquid crystal microflows simplify substantially the optofluidic integration, actuation and tuning of color filters for lab-on-a-chip spectroscopic applications.

  6. Optimization of infrared two-color multicycle field synthesis for intense-isolated-attosecond-pulse generation

    SciTech Connect (OSTI)

    Lan Pengfei; Takahashi, Eiji J.; Midorikawa, Katsumi [Extreme Photonics Research Group, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)

    2010-11-15

    We present the optimization of the two-color synthesis method for generating an intense isolated attosecond pulse (IAP) in the multicycle regime. By mixing an infrared assistant pulse with a Ti:sapphire main pulse, we show that an IAP can be produced using a multicycle two-color pulse with a duration longer than 30 fs. We also discuss the influence of the carrier-envelope phase (CEP) and the relative intensity on the generation of IAPs. By optimizing the wavelength of the assistant field, IAP generation becomes insensitive to the CEP slip. Therefore, the optimized two-color method enables us to relax the requirements of pulse duration and easily produce the IAP with a conventional multicycle laser pulse. In addition, it enables us to markedly suppress the ionization of the harmonic medium. This is a major advantage for efficiently generating intense IAPs from a neutral medium by applying the appropriate phase-matching and energy-scaling techniques.

  7. The Colorful Chemical Bottle Experiment Kit: From School Laboratory To Public Demonstration

    E-Print Network [OSTI]

    Limpanuparb, Taweetham

    2015-01-01

    The blue bottle experiment was first introduced to the chemical education literature as a simple demonstration on kinetics. Its original formulation contains only glucose, NaOH and small amount of methylene blue. The solution turns blue when shaken and fades to colorless upon standing. This bluing/de-bluing cycle may be repeated and may be compared to blood colors in animal's respiratory cycle. Inspired by the blue bottle experiment, the colorful chemical bottle experiment kit was commercially developed in 2006. The kit is a versatile pedagogical tool, not only for physical chemistry but also for analytical, biological and organic chemistry. It also helps teaching concepts in scientific method and laboratory safety. This manuscript contains four parts, brief review on literature relating to the blue bottle experiment, description of the colorful chemical bottle experiment kit, pedagogical discussion of the experiments and preliminary evaluation from students.

  8. A feedback control strategy for the airfoil system under non-Gaussian colored noise excitation

    SciTech Connect (OSTI)

    Huang, Yong E-mail: taogang@njust.edu.cn; Tao, Gang E-mail: taogang@njust.edu.cn

    2014-09-01

    The stability of a binary airfoil with feedback control under stochastic disturbances, a non-Gaussian colored noise, is studied in this paper. First, based on some approximated theories and methods the non-Gaussian colored noise is simplified to an Ornstein-Uhlenbeck process. Furthermore, via the stochastic averaging method and the logarithmic polar transformation, one dimensional diffusion process can be obtained. At last by applying the boundary conditions, the largest Lyapunov exponent which can determine the almost-sure stability of the system and the effective region of control parameters is calculated.

  9. Symmetry breaking patterns and collective modes of spin-one color superconductors

    E-Print Network [OSTI]

    Tomas Brauner; Jin-yi Pang; Qun Wang

    2009-09-23

    Spin-one color superconductor is a viable candidate phase of dense matter in the interiors of compact stars. Its low-energy excitations will influence the transport properties of such matter and thus have impact on late-stage evolution of neutron stars. It also provides a good example of spontaneous symmetry breaking with rich breaking patterns. In this contribution, we reanalyze the phase diagram of a spin-one color superconductor and point out that a part of it is occupied by noninert states, which have been neglected in literature so far. We classify the collective Nambu--Goldstone modes, which are essential to the transport phenomena.

  10. Solid State Lighting LED Core Technology R&D Roundtable

    Energy Savers [EERE]

    newer optical designs without that tradeoff and still give us efficient beam shaping optics. Color rendering index (CRI) is not enough of a color quality indicator to accurately...

  11. Identification of the Regions of the Bovine Genome Associated with Gray Coat Color in a Nellore-Angus Cross Population 

    E-Print Network [OSTI]

    Holland, Paul W

    2015-05-05

    The genetics of coat color for cattle are important to breeders and breed associations because phenotypes of these animals are used for breed recognition and premiums or discounts can be given due to the phenotypes. The gene for gray coat color has...

  12. 39.2 / B. L. Zhang 39.2: Optical Analysis of Vertical Aligned Mode on Color Filter

    E-Print Network [OSTI]

    39.2 / B. L. Zhang 39.2: Optical Analysis of Vertical Aligned Mode on Color Filter Liquid of Science and Technology, Clear Water Bay, Hong Kong Y. C. Chen Himax Display, No.12, Nanke 8th Road, Tainan on color filter liquid-crystal-on-silicon microdisplay. Three-dimensional optical analyses were performed

  13. Is it possible to use "twin cores" as a unique sedimentary record? An experimental design based on sediment color

    E-Print Network [OSTI]

    non destructive manipulation, gives quantitative information on the color and is used to describe that the acquisition of digital color is an affordable and non-destructive analysis that allows further investigation as a unique sedimentary record without any previous testing, at least in such transitional regions. 1

  14. Vertex-Colored Graphs, Bicycle Spaces and Mahler Measure Kalyn R. Lamey Daniel S. Silver Susan G. Williams

    E-Print Network [OSTI]

    Williams, Susan

    Vertex-Colored Graphs, Bicycle Spaces and Mahler Measure Kalyn R. Lamey Daniel S. Silver Susan G to the bicycle space of the graph. For graphs G with a free Zd -action by automorphisms, C is a finitely identify the subspace C0 of based conservative vertex colorings with the bicycle space B of G. In section 3

  15. Vertex-Colored Graphs, Bicycle Spaces and Mahler Measure Kalyn R. Lamey Daniel S. Silver Susan G. Williams

    E-Print Network [OSTI]

    Silver, Dan

    Vertex-Colored Graphs, Bicycle Spaces and Mahler Measure Kalyn R. Lamey Daniel S. Silver Susan G to be isomorphic to the bicycle space of the graph. For graphs G with a free Zd -action by automorphisms, C C0 of based conservative vertex colorings with the bicycle space B of G. In section 3 we define

  16. Frster resonance energy transfer enhanced color-conversion using colloidal semiconductor quantum dots for solid

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    energy savings to allow for efficient energy utilization of the limited energy sources and reduction in carbon emission.1,2 To further increase the energy saving of SSL, a photometric design namedFörster resonance energy transfer enhanced color-conversion using colloidal semiconductor quantum

  17. The DEEP Galaxy Redshift Survey: Color, Luminosity and Structural Properties of

    E-Print Network [OSTI]

    The DEEP Galaxy Redshift Survey: Color, Luminosity and Structural Properties of Galaxies Benjamin Weiner and the DEEP Collaboration DEEP 2 Participants: UC Berkeley: M.Davis, A.Coil, J.Newman, D.Schiavon Caltech: C.Steidel, R.Ellis, C.Conselice #12;DEEP 1: Groth Strip Redshift Survey Galaxy properties

  18. Concurrency Control with Data Coloring Luis Ceze, Christoph von Praun, Calin Cascaval

    E-Print Network [OSTI]

    Torrellas, Josep

    Coloring programming model, based on the principles of our previous work on architecture support for data-centric applications are used in a data-centric manner. Categories and Subject Descriptors D.1.3 [Programming on the principles of our previous work on architecture support for data-centric synchronization [2]. In this model

  19. TASK 2.5.7 FIELD EXPERIMENTS TO EVALUATE COOL-COLORED ROOFING

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    1/33 TASK 2.5.7 FIELD EXPERIMENTS TO EVALUATE COOL- COLORED ROOFING William (Bill) Miller, Ph for the concrete tile. This double batten construction forms an inclined air channel running from the soffit permeable covering to alleviate the underside air pressure and minimize wind uplift on the tiles

  20. Serialized Unsupervised Classifier for Adaptative Color Image Segmentation: Application to Digitized Ancient Manuscripts.

    E-Print Network [OSTI]

    Leydier, Yann

    . The algorithm reuses information about the clusters computed by the previous classification and automatically variety of images using other features for different purposes like color image segmentation as well libraries. Most of them are manually indexed at great cost, thus the automation of this task has become

  1. Tuning the correlated color temperature of white LED with a guest-host liquid crystal

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Tuning the correlated color temperature of white LED with a guest-host liquid crystal Haiwei Chen the molecular reorientation of dichroic dyes, the power ratio of the transmitted blue and red lights. P. Schuurmans, and M. D. Pashley, "Red, green, and blue LEDs for white light illumination," IEEE J

  2. Evaluation of the VIIRS ocean color monitoring performance in coastal regions

    E-Print Network [OSTI]

    . This paper addresses the preliminary evaluations of the VIIRS sensor's performance for retrieving OC dataEvaluation of the VIIRS ocean color monitoring performance in coastal regions Soe Hlaing sensing has entered a new phase with the successful deployment of the Visible Infrared Imager Radiometer

  3. The Climate for Faculty of Color in the Biological & Physical Sciences at UW-

    E-Print Network [OSTI]

    Sheridan, Jennifer

    #12;The Climate for Faculty of Color in the Biological & Physical Sciences at UW- Madison Jennifer Sheridan WISELI University of Wisconsin-Madison #12;Climate The atmosphere or ambience of an organization as perceived by its members. An organization's climate is reflected in its structures, policies, and practices

  4. SOME POV-RAY TEXTURES AND COLORS T_Wood1 to T_Wood35

    E-Print Network [OSTI]

    Lee, Carl

    SOME POV-RAY TEXTURES AND COLORS WOODS.INC T_Wood1 to T_Wood35 STONES.INC T_Stone1 to T_Stone44Pink DarkPurple NeonBlue CoolCopper MandarinOrange LightWood MediumWood DarkWood SpicyPink Semi

  5. Proceedings ICIP 2003 International Conference on Image Processing, Barcelona, Sept. 2003 NON-DIAGONAL COLOR CORRECTION

    E-Print Network [OSTI]

    Funt, Brian

    of digital imagery. We form a new model by considering the 9-dimensional space of 3x3 transformations transformation color correction methods, the new method requires only 3-parameters. It therefore requires only transformation using a 3-dimensional linear model composed of 3 basis transformations. Experiments show

  6. Impact of sub-pixel variations on ocean color remote sensing products

    E-Print Network [OSTI]

    Meyers, Steven D.

    Optical Properties: Fundamentals, Tests of Algorithms, and Applications, in Reports of the International, products at low resolution are not necessarily arithmetic or geometric means of those at higher resolution. Here, we developed analytical expressions to link ocean color properties derived from high- and low

  7. Influence of Genetic Background on Anthocyanin and Co-Pigment Profile and Stability of Colored Corn 

    E-Print Network [OSTI]

    Collison, Amy Elizabeth

    2014-08-05

    ................................................................................................. 59 Conclusions .................................................................................................................. 88 CHAPTER V SUMMARY .............................................................................................. 90... of these compounds in a limited set of samples (De la Parra et al., 2007; Del Pozo-Insfran 3 et al., 2006; Mora-Rochin et al., 2010). However, no studies have investigated the potential impact of anthocyanin and co-pigment composition on stability of color...

  8. EUROGRAPHICS 2012/ A. Fusiello, M. Wimmer Poster Multiview-Consistent Color Sampling for Alpha Matting

    E-Print Network [OSTI]

    Eisert, Peter

    formulate a new cost function penalizing deviations of foreground color estimates between associated pixel was supported by the European FP7 project REACT (288369) for this sampling process to be efficiently carried out to the closed-form global matting method proposed in [LLW08]. 2. Constructing a 3D trimap In a multiview setup

  9. * All figures are in color on the Coastal Sediments Proceedings DVD. NONUNIFORM SEDIMENT TRANSPORT MODELING AT

    E-Print Network [OSTI]

    US Army Corps of Engineers

    1783 * All figures are in color on the Coastal Sediments Proceedings DVD. NONUNIFORM SEDIMENT@ncche.olemiss.edu. Abstract: A depth-averaged two-dimensionalnonuniform sediment transport model is applied to the beaches. The sediment transport, bed change and sorting equations are solved simultaneously and implicitly at the same

  10. Design Methodology to trade off Power, Output Quality and Error Resiliency: Application to Color Interpolation Filtering

    E-Print Network [OSTI]

    Kambhampati, Subbarao

    Design Methodology to trade off Power, Output Quality and Error Resiliency: Application to Color,nbanerje,kaushik}@purdue.edu chaitali@asu.edu Abstract: Power dissipation and tolerance to process variations pose conflicting design-sizing for process tolerance can be detrimental for power dissipation. However, for certain signal processing systems

  11. CMOS Field-Modulated Color Sensor Derek Ho, Glenn Gulak, and Roman Genov

    E-Print Network [OSTI]

    Gulak, P. Glenn

    RED FILTER LIGHT (a) (b) (c) + LIGHT LIGHT n p n p n p n VGATE Fig. 1: Evolution of spectral imaging circuit process technology have been developed, most notably buried junction technology [5] (which at several depths, color information can be inferred. Although the buried junction approach N>3 GREEN FILTER

  12. Eccentricity fluctuations from the Color Glass Condensate at RHIC and LHC

    E-Print Network [OSTI]

    H. -J. Drescher; Y. Nara

    2007-07-02

    In this brief note, we determine the fluctuations of the initial eccentricity in heavy-ion collisions caused by fluctuations of the nucleon configurations. This is done via a Monte-Carlo implementation of a Color Glass Condensate $k_t$-factorization approach. The eccentricity fluctuations are found to nearly saturate elliptic flow fluctuations measured recently at RHIC. Extrapolations to LHC energies are shown.

  13. Comparisons of optical properties of the coastal ocean derived from satellite ocean color and

    E-Print Network [OSTI]

    Chang, Grace C.

    Comparisons of optical properties of the coastal ocean derived from satellite ocean color Laboratory, Ocean Optics Section, Code 7333, Stennis Space Center, MS 39529 gould@nrlssc.navy.mil Abstract: Satellite-derived optical properties are compared to in situ mooring and ship-based measurements

  14. Solar DEM Model Proposal : A solar image in color band b, mn pixels,

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Solar DEM Model Proposal : A solar image in color band b, m×n pixels, containing a particular solar 11 )( #12;Solar DEM Model Proposal : the volume (abundance?) of ion ii : the proportion of the total volume at temperature t t T t bitt I i ib MIE 11 )( #12;Solar Dataset · 15 Filters.txt files

  15. De-Confinement and Clustering of Color Sources in Nuclear Collisions

    E-Print Network [OSTI]

    M. A. Braun; J. Dias de Deus; A. S. Hirsch; C. Pajares; R. P. Scharenberg; B. K. Srivastava

    2015-01-07

    A brief introduction of the relationship of string percolation to the Quantum Chromo Dynamics (QCD) phase diagram is presented. The behavior of the Polyakov loop close to the critical temperature is studied in terms of the color fields inside the clusters of overlapping strings, which are produced in high energy hadronic collisions. The non-Abelian nature of the color fields implies an enhancement of the transverse momentum and a suppression of the multiplicities relative to the non overlapping case. The prediction of this framework are compared with experimental results from the SPS, RHIC and LHC for $pp$ and AA collisions. Rapidity distributions, probability distributions of transverse momentum and multiplicities, Bose-Einstein correlations, elliptic flow and ridge structures are used to evaluate these comparison. The thermodynamical quantities, the temperature, and energy density derived from RHIC and LHC data and Color String Percolation Model (CSPM) are used to obtain the shear viscosity to entropy density ratio ($\\eta/s$). It was observed that the inverse of ($\\eta/s$) represents the trace anomaly $\\Delta =(\\varepsilon-3P)/T^{4}$. Thus the percolation approach within CSPM can be successfully used to describe the initial stages in high energy heavy ion collisions in the soft region in high energy heavy ion collisions. The thermodynamical quantities, temperature and the equation of state are in agreement with the lattice QCD calculations. Thus the clustering of color sources has a clear physical basis although it cannot be deduced directly from QCD.

  16. Training Signal Design for Estimation of Correlated MIMO Channels with Colored

    E-Print Network [OSTI]

    Hager, William

    Training Signal Design for Estimation of Correlated MIMO Channels with Colored Interference Yong error (MMSE) channel estimator is derived and the optimal training sequences are designed based in the construction of the optimal training sequences. We also design an efficient scheme to feed back the required

  17. Motion and Color Analysis for Animat Perception Tamer F. Rabie and Demetri Terzopoulos

    E-Print Network [OSTI]

    Terzopoulos, Demetri

    . Spatially nonuniform retinal imaging providesopportunitiesfor increased compu- Figure 1: Artificial fishes 1979). Some species of fish are able to recognize the color signa- tures of other fish and use artificial fishes in a virtual marine world (Fig. 1). The fish animats are the result of research

  18. Structural colors from Morpho peleides butterfly wing scales Yong Ding, Sheng Xu, and Zhong Lin Wanga

    E-Print Network [OSTI]

    Wang, Zhong L.

    Structural colors from Morpho peleides butterfly wing scales Yong Ding, Sheng Xu, and Zhong Lin Morpho peleides butterfly wing is decorated by two types of scales, cover and ground scales. We have in the infrared and ultraviolet regions. The analogy in the spectra acquired from the original wing and that from

  19. Dialing in color with rare earth metals: facile photoluminescent production of true white light

    E-Print Network [OSTI]

    Tew, Gregory N.

    Dialing in color with rare earth metals: facile photoluminescent production of true white light of lanthanide ions which is the focus of this report. Rare earth metal complexes have relatively good Combining polymeric architectures with metal ions produces hybrid materials with extremely rich properties

  20. Two-color magneto-optical trap with small magnetic field for ytterbium

    E-Print Network [OSTI]

    Kawasaki, Akio

    We report a two-color magneto-optical trap (MOT) for ytterbium atoms where the slowing and trapping functions are separately performed by the singlet transition light (6s[superscript 2] [superscript 1]S[subscript 0] ? 6s6p ...

  1. Alternative Version of Chiral Color as Alternative to the Standard Model

    E-Print Network [OSTI]

    Paul H. Frampton

    2009-12-29

    In a variant of chiral color with the electroweak gauge group generalized to $SU(3)_L \\times U(1)$ anomaly cancellation occurs more readily than in the $SU(2)_L \\times U(1)$ case. Three families are required by anomaly cancellation and the top family appears non-sequentially.

  2. The superfluid phases of quark matter Ginzburg-Landau theory and color neutrality

    E-Print Network [OSTI]

    Iida, K; Iida, Kei; Baym, Gordon

    2001-01-01

    We apply Ginzburg-Landau theory to determine BCS pairing in a strongly-coupled uniform superfluid of three-flavor massless quarks in flavor equilibrium. We elucidate the phase diagram near the critical temperature in the space of the parameters characterizing the thermodynamic potential terms of fourth order in the pairing gap. Within the color and flavor antisymmetric channel with zero total angular momentum, the phase diagram contains an isoscalar (IS) color-antitriplet phase and a color-flavor-locked (CFL) phase, reached by a second order transition from the normal state, as well as states reached by a first order transition. We complement the general Ginzburg-Landau approach by deriving the high-density asymptotic form of the Ginzburg-Landau free energy from the weak-coupling gap equation. The dynamically-screened, long-range color magnetic interactions are taken into account in solving the gap equation. We find that in the limit of weak coupling, the IS phase is less favorable near the transition tempera...

  3. EVIDENCE FOR A COLOR DEPENDENCE IN THE SIZE DISTRIBUTION OF MAIN-BELT ASTEROIDS Paul Wiegert

    E-Print Network [OSTI]

    Wiegert, Paul

    EVIDENCE FOR A COLOR DEPENDENCE IN THE SIZE DISTRIBUTION OF MAIN-BELT ASTEROIDS Paul Wiegert ($1 km) main-belt asteroids with the 3.6 m Canada-France-Hawaii Telescope. We observed in two filters axis, the difference between the filters in the inner belt is found to be somewhat less pronounced than

  4. Mixing paints for generating metamerism art under 2 lights and 3 object colors

    E-Print Network [OSTI]

    Tokyo, University of

    Mixing paints for generating metamerism art under 2 lights and 3 object colors Daisuke Miyazaki paints computed by the proposed method, (b) those illuminated by blue light, (c) those illuminated of the research relates to automatic calculation of blending ratios of oil paints that cause metamerism to occur

  5. A Hybrid Color-Based Foreground Object Detection Method for Automated Marine

    E-Print Network [OSTI]

    Kalva, Hari

    A Hybrid Color-Based Foreground Object Detection Method for Automated Marine Surveillance Daniel for the marine surveillance applications. Our approach combines an existing foreground object detection method variation of edges. We also establish the set of requirements any practical marine surveillance algorithm

  6. Power-Saving Color Transformation of Mobile Graphical User Interfaces on OLED-based Displays

    E-Print Network [OSTI]

    Zhong, Lin

    , Houston, TX 77025 {dongmian, ykc1,lzhong}@rice.edu ABSTRACT Emerging organic light-emitting diode (OLED of the display content or GUI design [1]. In contrast, emerging organic light-emitting diode (OLEDPower-Saving Color Transformation of Mobile Graphical User Interfaces on OLED-based Displays Mian

  7. Chameleon: Color Transformation on OLED Displays Mian Dong, and Lin Zhong

    E-Print Network [OSTI]

    Zhong, Lin

    system energy consumers in mobile systems. Emerging organic light-emitting diode (OLED)-based displaysChameleon: Color Transformation on OLED Displays Mian Dong, and Lin Zhong Department of Electrical promise unprecedented flexibility in power savings because all pixels are light-emitting and the power

  8. Chameleon: A Color-Adap0ve Web Browser for Mobile OLED Displays

    E-Print Network [OSTI]

    Zhong, Lin

    Light- Emittin g Diode #12;2010 2009 2011 #12;Power = 2.0W!Power = 0.5W!OLED RocksChameleon: A Color-Adap0ve Web Browser for Mobile OLED Displays Mian Dong !!! OLED Rocks !!! OLED Rocks !!! OLED Rocks !!! OLED Rocks !!! OLED Rocks

  9. Fabrication of color tunable organic light-emitting diodes by an alignment free mask patterning method

    E-Print Network [OSTI]

    proposed for fabricating the side-by- side color tunable organic light-emitting diodes (OLEDs-voltage organic light emitting diodes (OLEDs) in 1987 [1], OLEDs have attracted much attention for the application of the white light OLEDs can be as high as 100 lm/W at a illumination level of 1000 cd/m2 [2], which is beyond

  10. Globular cluster systems and their host galaxies: comparison of spatial distributions and colors

    SciTech Connect (OSTI)

    Hargis, Jonathan R. [Department of Astronomy, Haverford College, 370 Lancaster Avenue, Haverford, PA 19041 (United States); Rhode, Katherine L., E-mail: jhargis@haverford.edu [Department of Astronomy, Indiana University, 727 East 3rd Street, Swain West 319, Bloomington, IN 47405 (United States)

    2014-11-20

    We present a study of the spatial and color distributions of four early-type galaxies and their globular cluster (GC) systems observed as part of our ongoing wide-field imaging survey. We use BVR KPNO 4 m+MOSAIC imaging data to characterize the galaxies' GC populations, perform surface photometry of the galaxies, and compare the projected two-dimensional shape of the host galaxy light to that of the GC population. The GC systems of the ellipticals NGC 4406 and NGC 5813 both show an elliptical distribution consistent with that of the host galaxy light. Our analysis suggests a similar result for the giant elliptical NGC 4472, but a smaller GC candidate sample precludes a definite conclusion. For the S0 galaxy NGC 4594, the GCs have a circular projected distribution, in contrast to the host galaxy light, which is flattened in the inner regions. For NGC 4406 and NGC 5813, we also examine the projected shapes of the metal-poor and metal-rich GC subpopulations and find that both subpopulations have elliptical shapes that are consistent with those of the host galaxy light. Lastly, we use integrated colors and color profiles to compare the stellar populations of the galaxies to their GC systems. For each galaxy, we explore the possibility of color gradients in the individual metal-rich and metal-poor GC subpopulations. We find statistically significant color gradients in both GC subpopulations of NGC 4594 over the inner ?5 effective radii (?20 kpc). We compare our results to scenarios for the formation and evolution of giant galaxies and their GC systems.

  11. Grouping normal type Ia supernovae by UV to optical color differences

    SciTech Connect (OSTI)

    Milne, Peter A.; Brown, Peter J.; Roming, Peter W. A.; Bufano, Filomena; Gehrels, Neil

    2013-12-10

    Observations of many Type Ia supernovae (SNe Ia) for multiple epochs per object with the Swift Ultraviolet Optical Telescope instrument have revealed that there exists order to the differences in the UV-optical colors of optically normal supernovae (SNe). We examine UV-optical color curves for 23 SNe Ia, dividing the SNe into four groups, and find that roughly one-third of 'NUV-blue' SNe Ia have bluer UV-optical colors than the larger 'NUV-red' group. Two minor groups are recognized, 'MUV-blue' and 'irregular' SNe Ia. While we conclude that the latter group is a subset of the NUV-red group, containing the SNe with the broadest optical peaks, we conclude that the 'MUV-blue' group is a distinct group. Separating into the groups and accounting for the time evolution of the UV-optical colors lowers the scatter in two NUV-optical colors (e.g., u – v and uvw1 – v) to the level of the scatter in b – v. This finding is promising for extending the cosmological utilization of SNe Ia into the NUV. We generate spectrophotometry of 33 SNe Ia and determine the correct grouping for each. We argue that there is a fundamental spectral difference in the 2900-3500 Å wavelength range, a region suggested to be dominated by absorption from iron-peak elements. The NUV-blue SNe Ia feature less absorption than the NUV-red SNe Ia. We show that all NUV-blue SNe Ia in this sample also show evidence of unburned carbon in optical spectra, whereas only one NUV-red SN Ia features that absorption line. Every NUV-blue event also exhibits a low gradient of the Si II ?6355 absorption feature. Many NUV-red events also exhibit a low gradient, perhaps suggestive that NUV-blue events are a subset of the larger low-velocity gradient group.

  12. Educational programs of the Texas A&M AgriLife Extension Service are open to all people without regard to race, color, sex,

    E-Print Network [OSTI]

    regard to race, color, sex, disability, religion, age, or national origin. The Texas A&M University, color, sex, disability, religion, age, or national origin. The Texas A&M University System, U

  13. Educational programs of the Texas A&M AgriLife Extension Service are open to all people without regard to race, color, sex,

    E-Print Network [OSTI]

    regard to race, color, sex, disability, religion, age, or national origin. The Texas A&M UniversityLife Extension Service are open to all people without regard to race, color, sex, disability, religion, age

  14. Decreasing Variation in Cook Color of Ground Beef Patties Varying in Myoglobin and pH Using Acetic Acid and Hydrocolloid Solutions 

    E-Print Network [OSTI]

    Aldredge, Teresa Lynn

    2011-02-22

    interactions for internal CIE a* and b* color space values ................................................................ 90 41 Least squares means for treatment and cooking method interaction for internal CIE a* color space values... no evidence of pink color post-cooking. Short-term holding after cooking has been shown to reduce the pink color (Berry and Bigner-George 2000; Ryan and others 2006). Holding for up to 90 min past cooking has been shown to decrease yield and increase...

  15. Page 1 of 2 Educational programs of the Texas A&M AgriLife Extension Service are open to all people without regard to race, color, sex, religion,

    E-Print Network [OSTI]

    without regard to race, color, sex, religion, national origin, age, disability, genetic information, color, sex, religion, national origin, age, disability, genetic information, or veteran status

  16. Graph Coloring Algorithms for Muti-core and Massively Multithreaded Architectures

    E-Print Network [OSTI]

    Catalyurek, Umit; Gebremedhin, Assefaw; Halappanavar, Mahantesh; Pothen, Alex

    2012-01-01

    We explore the interplay between architectures and algorithm design in the context of shared-memory platforms and a specific graph problem of central importance in scientific and high-performance computing, distance-1 graph coloring. We introduce two different kinds of multithreaded heuristic algorithms for the stated, NP-hard, problem. The first algorithm relies on speculation and iteration, and is suitable for any shared-memory system. The second algorithm uses dataflow principles, and is targeted at the non-conventional, massively multithreaded Cray XMT system. We study the performance of the algorithms on the Cray XMT and two multi-core systems, Sun Niagara 2 and Intel Nehalem. Together, the three systems represent a spectrum of multithreading capabilities and memory structure. As testbed, we use synthetically generated large-scale graphs carefully chosen to cover a wide range of input types. The results show that the algorithms have scalable runtime performance and use nearly the same number of colors as...

  17. Color Glass Condensates in dense quark matter and quantum Hall states of gluons

    E-Print Network [OSTI]

    Aiichi Iwazaki

    2006-04-26

    We apply the effective theory of color glass condensate to the analysis of gluon states in dense quark matter, in which the saturation region of gluons is also present. We find that in the region two point function of gluons shows algebraic long range order. The order is completely the same as the one gluons show in the dense quark matter, which form quantum Hall states. The order leads to the vanishing of massless gluon pole. We also find that the saturation region of gluons extends from small $x$ to even large $x\\lesssim 1$ in much dense quark matter. We point out a universality that the color glass condensate is a property of hadrons at high energy and of quark matter at high baryon density.

  18. Mapping the Galaxy Color-Redshift Relation: Optimal Photometric Redshift Calibration Strategies for Cosmology Surveys

    E-Print Network [OSTI]

    Masters, Daniel; Stern, Daniel; Ilbert, Olivier; Salvato, Mara; Schmidt, Samuel; Longo, Giuseppe; Rhodes, Jason; Paltani, Stephane; Mobasher, Bahram; Hoekstra, Henk; Hildebrandt, Hendrik; Coupon, Jean; Steinhardt, Charles; Speagle, Josh; Faisst, Andreas; Kalinich, Adam; Brodwin, Mark; Brescia, Massimo; Cavuoti, Stefano

    2015-01-01

    Calibrating the photometric redshifts of >10^9 galaxies for upcoming weak lensing cosmology experiments is a major challenge for the astrophysics community. The path to obtaining the required spectroscopic redshifts for training and calibration is daunting, given the anticipated depths of the surveys and the difficulty in obtaining secure redshifts for some faint galaxy populations. Here we present an analysis of the problem based on the self-organizing map, a method of mapping the distribution of data in a high-dimensional space and projecting it onto a lower-dimensional representation. We apply this method to existing photometric data from the COSMOS survey selected to approximate the anticipated Euclid weak lensing sample, enabling us to robustly map the empirical distribution of galaxies in the multidimensional color space defined by the expected Euclid filters. Mapping this multicolor distribution lets us determine where - in galaxy color space - redshifts from current spectroscopic surveys exist and whe...

  19. Quasi-particle Specific Heats for the Crystalline Color Superconducting Phase of QCD

    E-Print Network [OSTI]

    R. Casalbuoni; R. Gatto; M. Mannarelli; G. Nardulli; M. Ruggieri; S. Stramaglia

    2003-12-09

    We calculate the specific heats of quasi-particles of two-flavor QCD in its crystalline phases for low temperature. We show that for the different crystalline structures considered here there are gapless modes contributing linearly in temperature to the specific heat. We evaluate also the phonon contributions which are cubic in temperature. These features might be relevant for compact stars with an inner shell in a color superconducting crystalline phase.

  20. Cooling our communities: A guidebook on tree planting and light-colored surfacing

    SciTech Connect (OSTI)

    Akbari, H.; Davis, S.; Huang, J. ); Dorsano, S. ); Winnett, S. . Climate Change Div.)

    1992-01-01

    This book is a practical guide that presents the current state of knowledge on potential environmental and economic benefits of strategic landscaping and altering surface colors in our communities. The guidebook, reviews the causes, magnitude, and impacts of increased urban warming, then focuses on actions by citizens and communities that can be undertaken to improve the quality of our homes and towns in cost-effective ways.

  1. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul; Wood, Kurt; Skilton, Wayne; Petersheim, Jerry

    2009-11-20

    The widespread use of solar-reflective roofing materials can save energy, mitigate urban heat islands and slow global warming by cooling the roughly 20% of the urban surface that is roofed. In this study we created prototype solar-reflective nonwhite concrete tile and asphalt shingle roofing materials using a two-layer spray coating process intended to maximize both solar reflectance and factory-line throughput. Each layer is a thin, quick-drying, pigmented latex paint based on either acrylic or a poly(vinylidene fluoride)/acrylic blend. The first layer is a titanium dioxide rutile white basecoat that increases the solar reflectance of a gray-cement concrete tile from 0.18 to 0.79, and that of a shingle surfaced with bare granules from 0.06 to 0.62. The second layer is a 'cool' color topcoat with weak near-infrared (NIR) absorption and/or strong NIR backscattering. Each layer dries within seconds, potentially allowing a factory line to pass first under the white spray, then under the color spray. We combined a white basecoat with monocolor topcoats in various shades of red, brown, green and blue to prepare 24 cool color prototype tiles and 24 cool color prototypes shingles. The solar reflectances of the tiles ranged from 0.26 (dark brown; CIELAB lightness value L* = 29) to 0.57 (light green; L* = 76); those of the shingles ranged from 0.18 (dark brown; L* = 26) to 0.34 (light green; L* = 68). Over half of the tiles had a solar reflectance of at least 0.40, and over half of the shingles had a solar reflectance of at least 0.25.

  2. Impact of Paint Color on Rest Period Climate Control Loads in Long-Haul Trucks: Preprint

    SciTech Connect (OSTI)

    Lustbader, J.; Kreutzer, C.; Jeffers, M.; Adelman, S.; Yeakel, S.; Brontz, P.; Olson, K.; Ohlinger, J.

    2014-02-01

    Cab climate conditioning is one of the primary reasons for operating the main engine in a long-haul truck during driver rest periods. In the United States, sleeper cab trucks use approximately 667 million gallons of fuel annually for rest period idling. The U.S. Department of Energy's National Renewable Energy Laboratory's (NREL) CoolCab Project works closely with industry to design efficient thermal management systems for long-haul trucks that minimize engine idling and fuel use while maintaining occupant comfort. Heat transfer to the vehicle interior from opaque exterior surfaces is one of the major heat pathways that contribute to air conditioning loads during long-haul truck daytime rest period idling. To quantify the impact of paint color and the opportunity for advanced paints, NREL collaborated with Volvo Group North America, PPG Industries, and Dometic Environmental Corporation. Initial screening simulations using CoolCalc, NREL's rapid HVAC load estimation tool, showed promising air-conditioning load reductions due to paint color selection. Tests conducted at NREL's Vehicle Testing and Integration Facility using long-haul truck cab sections, 'test bucks,' showed a 31.1% of maximum possible reduction in rise over ambient temperature and a 20.8% reduction in daily electric air conditioning energy use by switching from black to white paint. Additionally, changing from blue to an advanced color-matched solar reflective blue paint resulted in a 7.3% reduction in daily electric air conditioning energy use for weather conditions tested in Colorado. National-level modeling results using weather data from major U.S. cities indicated that the increase in heating loads due to lighter paint colors is much smaller than the reduction in cooling loads.

  3. Entanglement entropy and entropy production in the Color Glass Condensate framework

    E-Print Network [OSTI]

    Alex Kovner; Michael Lublinsky

    2015-06-17

    We compute the entanglement entropy of soft gluons in the wave function of a fast moving hadron and discuss its basic properties. We also derive the expression for entropy production in a high energy hadronic collision within the Color Glass formalism. We show that long range rapidity correlations give negative contribution to the production entropy. We calculate the (naturally defined) temperature of the produced system of particles, and show that it is proportional to the average transverse momentum of the produced particles.

  4. Entanglement entropy and entropy production in the Color Glass Condensate framework

    E-Print Network [OSTI]

    Kovner, Alex

    2015-01-01

    We compute the entanglement entropy of soft gluons in the wave function of a fast moving hadron and discuss its basic properties. We also derive the expression for entropy production in a high energy hadronic collision within the Color Glass formalism. We show that long range rapidity correlations give negative contribution to the production entropy. We calculate the (naturally defined) temperature of the produced system of particles, and show that it is proportional to the average transverse momentum of the produced particles.

  5. Efficient three-color white organic light-emitting diodes with a spaced multilayer emitting structure

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    ://dx.doi.org/10.1063/1.4905599 View Table of Contents: http://scitation.aip.org/content/aip/journal/apl/106/2?ver Internationale de L'Eclairage coordinates insensitive to the applied bias voltage. This insensitivity the achieved stable color coordinates of (0.411 6 0.007, 0.382 6 0.003), a high power efficiency of 30.7 lm

  6. Render Safe | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Media Congressional Testimony Fact Sheets Newsletters Press Releases Video Gallery Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home About Us Our...

  7. Real-time Rendering of Translucent Materials

    E-Print Network [OSTI]

    processing unit's programmable pipeline and uses programming procedures known as point splatting, texture-o) their corresponding o-line ren- derings. #12;ii #12;Preface This thesis was prepared at the department of Informatics

  8. A surface renderer for biological environments 

    E-Print Network [OSTI]

    Pandu, Jai Prakash

    1993-01-01

    . These methods have been successfully applied to various clinical areas with significant results. The visual evaluation of the image content necessitates the presentation of highly realistic images developed from the raw 3D data. Generating realistic computer...

  9. Single-strips for fast interactive rendering

    E-Print Network [OSTI]

    Diaz-Gutierrez, Pablo; Bhushan, Anusheel; Gopi, M; Pajarola, Renato

    2006-01-01

    654211.html 10. Diaz-Gutierrez, P. , Bhushan, A. , Gopi,668–676 (1990) Pablo Diaz-Gutierrez et al. 33. Shafae, M. ,121 (2005) 11. Diaz-Gutierrez, P. , Gopi, M. : Quadrilateral

  10. Perceptual Rendering of Participating Media VERONICA SUNDSTEDT

    E-Print Network [OSTI]

    Gutierrez, Diego

    GUTIERREZ and OSCAR ANSON University of Zaragoza and FRANCESCO BANTERLE, and ALAN CHALMERS University, attention ACM Reference Format: Sundstedt V., Gutierrez, D., Anson, O., Banterle, F., and Chalmers, A. 2007 Building, Woodland Road, BS8 1UB, Bristol, UK; email: veronica@cs.bris.ac.uk. Diego Gutierrez and Oscar

  11. render safe | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0 4 2 r m m m m port mrberrettImproving theArender

  12. Render Safe | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProtonAbout UsRegionalScientific andRemote

  13. Revised photometry and color distribution of Type Ia supernovae observed at Asiago in the seventies

    E-Print Network [OSTI]

    F. Patat; R. Barbon; E. Cappellaro M. Turatto

    1996-05-29

    Following recent claims regarding possible errors in the photometry of SNe carried out at Asiago observatory during the 70's, which produced very blue $(B-V)$ color at maximum for some objects, we present the result of new CCD photometry of the sequences around 16 type Ia supernovae. Except for a few cases, e.g. SN1970J and SN1972J for which a large zero point error has been found, the new data show that the old Asiago observations have been carried out properly and that their accuracy was comparable to that expected for a photometry based on photographic transfers. This result is also substantiated by comparison with the re-calibration of some Asiago sequences made photo-electrically by Tsvetkov. New light curves of the SNe have been determined and B magnitudes and (B-V) colors at light peak derived. With the new data the color distribution of the SNe studied here becomes narrower and moves to the red by only 0.06 mag, showing no more very blue objects except for one, still uncertain, case. As far as the use of SNIa as standard candles is concerned, we show that the utilization of all SNe in the M$_B$ vs. (B-V)$^{max}_0$ plane reduces the uncertainties due to the photometry.

  14. Investigation about the effects of exterior surface paint color on temperature development in aboveground pipeline

    SciTech Connect (OSTI)

    Farzaneh-Gord, Mahmood; Rasekh, Alireza; Nabati, Amin; Saadat, Morteza

    2010-12-15

    A practical analytical model for predicting temperature development of incompressible flow inside an aboveground pipeline has been constructed and presented in this research work. The outer surface of the pipeline is exposed to solar radiation and wind stream. The radiation heat exchange with ambient is also taken into account. The effects of exterior surface paint color represented by emissivity and absorptivity, have been studied. The model has been developed to study crude oil flow temperature development through a specific pipeline. The results obtained by the model show that the bulk temperature inclined to a limiting value in some distance which affected mainly by Reynolds numbers. It is found that emissivity and absorptivity of surface are predominant parameters in temperature development in an aboveground pipeline flow which can increase or decrease pipe surface and fluid temperature especially for low Reynolds number flow. Based on the results which indicated significantly of exterior surface paint color, one should choose the paint color by considering its effects on temperature development. (author)

  15. Color dipole BFKL-Regge factorization and high-energy photon-photon scattering

    SciTech Connect (OSTI)

    Nikolaev, N.N.; Speth, J.; Zoller, V.R.

    2001-11-01

    Based on the color dipole representation, we investigate consequences for the {gamma}*{gamma}*, {gamma}*{gamma} scattering of the finding by Fadin, Kuraev, and Lipatov that the incorporation of asymptotic freedom into the BFKL equation makes the QCD pomeron a series of isolated poles in the angular momentum plane. The emerging color dipole BFKL-Regge factorization allows us to relate in a model-independent way the contributions of each BFKL pole to the {gamma}*{gamma}*, {gamma}*{gamma} scattering and the deep inelastic scattering on protons. Numerical predictions based on our early work on the color dipole BFKL phenomenology of the deep inelastic scattering on protons gives a good agreement with the recent experimental data from OPAL and L3 experiments at LEP200. We discuss the role of nonperturbative dynamics and predict a pronounced effect of the Regge-factorization breaking due to large unfactorizable nonperturbative corrections to the perturbative vacuum exchange. We comment on the salient features of the BFKL-Regge expansion for the {gamma}*{gamma}*, {gamma}*{gamma} scattering including the issue of the decoupling of subleading BFKL poles and the soft plus rightmost hard BFKL pole dominance.

  16. Does the problem of global warming exist at all? Insight from the temperature drift induced by inevitable colored noise

    E-Print Network [OSTI]

    Rusov, V D; Eingorn, M V; Zelentsova, T N; Linnik, E P; Beglaryan, M E; Vachev, B

    2013-01-01

    In the present paper we state a problem of the colored noise nonremovability on the climatic 30-year time scale, which essentially changes the angle of view on the known problem of global warming.

  17. CALiPER Report 20.1: Quality of Beam, Shadow, and Color in LED PAR38 Lamps

    Broader source: Energy.gov [DOE]

    View the video about CALiPER Report 20.1 which focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality in LED PAR38 lamps.

  18. A Case Study of White Secondary Teachers' Perceptions about Their Students of Color and the Impact on Instruction 

    E-Print Network [OSTI]

    Benedict, Rebecca Marie

    2014-04-16

    This study was designed to explore how White secondary teachers’ perceptions about their students of color impacted instruction in a successful, diverse school district. In order to develop more positive attitudes toward ...

  19. The effect of colored borders and age on the conspicuity of warning signs in a complex visual environment 

    E-Print Network [OSTI]

    Chard, Joshua Turner

    1993-01-01

    This laboratory study examined the effect of colored borders and age on the conspicuity of roadside warning signs embedded in cluttered urban environments. Prior research has suggested that a uniform border surrounding a sign will increase its...

  20. Multimodal Environmental Interfaces : discrete and continuous changes of form, light, and color using natural modes of expression

    E-Print Network [OSTI]

    Ob'yedkova, Ekaterina

    2014-01-01

    In this thesis, I defined and implemented a framework for design and evaluation of Multinodal Environmental Interfaces. Multimodal Environmental Interfaces allow users to control form, light, and color using natural modes ...