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We encourage you to perform a real-time search of NLEBeta
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1

Improved Signal-to-Noise Ratio Estimation for Speech Enhancement  

E-Print Network [OSTI]

1 Improved Signal-to-Noise Ratio Estimation for Speech Enhancement Cyril Plapous, Member, IEEE speech enhancement in noisy environments. State-of- the-art short-time noise reduction techniques reduction techniques, includ- ing TSNR, introduce harmonic distortion in enhanced speech because

Paris-Sud XI, Université de

2

Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators  

DOE Patents [OSTI]

An apparatus and method for enhancing pulse contrast ratios for drive lasers and electron accelerators. The invention comprises a mechanical dual-shutter system wherein the shutters are placed sequentially in series in a laser beam path. Each shutter of the dual shutter system has an individually operated trigger for opening and closing the shutter. As the triggers are operated individually, the delay between opening and closing first shutter and opening and closing the second shutter is variable providing for variable differential time windows and enhancement of pulse contrast ratio.

Zhang, Shukui; Wilson, Guy

2014-09-23T23:59:59.000Z

3

Enhancing fire safety at Hydro plants with dry transformers  

SciTech Connect (OSTI)

Hydroelectric plant owners and engineers can use dry-type transformers to reduce fire hazards in auxiliary power systems. The decision to replace a liquid-immersed transformer with a dry-type product has a price: higher unit cost and a need to be more vigilant in detailing transformer specifications. But, whether the change affects only one failed transformer or is part of a plant rehabilitation project, the benefits in safety can be worth it. Voltages on hydroelectric plant auxiliary power systems can range from a 20 kV medium-voltage system to the normal 480-208/120 V low-voltage system. Dry transformers typically are used in such systems to reduce the fire hazard present with liquid-filled transformers. For a hydro plant owner or engineer seeking alternatives to liquid-filled transformers, there are two main kinds of dry-type transformers to consider: vacuum pressure impregnated (VPI) and cast coil epoxy resin. VPI transformers normally are manufactured in sizes up to 6,000 kVA with primary voltage ratings up to 20 kV. Cast coil transformers can be made in sizes from 75 to 10,000 kVA, with primary voltage ratings up to 34,500 V. Although the same transformer theory applies to dry transformers as to liquid-filled units, the cooling medium, air, required different temperature rise ratings, dielectric tests, and construction techniques to ensure reliability. Consequently, the factory and field tests for dry units are established by a separate set of American National Standards Institute (ANSI)/Institute of Electrical and Electronics Engineers (IEEE) standards. Cast coil transformers have several important advantages over VPI units.

Clemen, D.M. (Harza Engineering Company, Chicago, IL (United States))

1993-06-01T23:59:59.000Z

4

Synthesizing Transformations for Locality Enhancement of Imperfectly-nested Loop Nests  

E-Print Network [OSTI]

Synthesizing Transformations for Locality Enhancement of Imperfectly-nested Loop Nests Nawaaz Ahmed in imperfectly-nested loops. The key idea is to em- bed the iteration space of every statement in a loop nest into a spe- cial iteration space called the product space. The product space can be viewed as a perfectly-nested

Pingali, Keshav K.

5

Plasmon-enhanced polymer photovoltaic cells based on large aspect ratio gold nanorods and the related working mechanism  

E-Print Network [OSTI]

Plasmon-enhanced polymer photovoltaic cells based on large aspect ratio gold nanorods-to-electrical conversion performances in polymer photovoltaic cells. Totally different improvement factors in short AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4880575] Organic photovoltaic (OPV) cells

Xiong, Qihua

6

55Fe effect on enhancing ferritic steel He/dpa ratio in fission reactor irradiations to simulate fusion conditions  

SciTech Connect (OSTI)

How to increase the ferritic steel He(appm)/dpa ratio in a fission reactor neutron spectrum is an important question for fusion reactor material testing. An early experiment showed that the accelerated He(appm)/dpa ratio of about 2.3 was achieved for 96% enriched 54Fe in iron with 458.2 effective full power days (EFPD) irradiation in the High Flux Isotope Reactor (HFIR), ORNL. Greenwood suggested that the transmutation produced 55Fe has a thermal neutron helium production cross section which may have an effect on this result. In the current work, the ferritic steel He(appm)/dpa ratio is studied in the neutron spectrum of HFIR with 55Fe thermal neutron helium production taken into account. The available ENDF-b format 55Fe incident neutron cross section file from TENDL, Netherlands, is first input into the calculation model. A benchmark calculation for the same sample as used in the aforementioned experiment was used to adjust and evaluate the TENDL 55Fe (n, a) cross section values. The analysis shows a decrease of a factor of 6700 for the TENDL 55Fe (n, a) cross section in the intermediate and low energy regions is required in order to fit the experimental results. The best fit to the cross section value at thermal neutron energy is about 27 mb. With the adjusted 55Fe (n, a) cross sections, calculation show that the 54Fe and 55Fe isotopes can be enriched by the isotopic tailoring technique in a ferritic steel sample irradiated in HFIR to significantly enhance the helium production rate. The results show that a 70% enriched 54Fe and 30% enriched 55Fe ferritic steel sample would produce a He(appm)/dpa ratio of about 13 initially in the HFIR peripheral target position (PTP). After one year irradiation, the ratio decreases to about 10. This new calculation can be used to guide future isotopic tailoring experiments designed to increase the He(appm)/dpa ratio in fission reactors. A benchmark experiment is suggested to be performed to evaluate the 55Fe (n, a) cross section at thermal energy.

Liu, Haibo; Abdou, Mohamed A.; Greenwood, Lawrence R.

2013-11-01T23:59:59.000Z

7

FTIR (Fourier transform infrared) spectrophotometry for thin film monitors: Computer and equipment integration for enhanced capabilities  

SciTech Connect (OSTI)

Fourier transform infrared spectrophotometry (FTIR) is a valuable technique for monitoring thin films used in semiconductor device manufacture. Determinations of the constituent contents in borophosphosilicate (BPSG), phosphosilicate (PSG), silicon oxynitride (SiON:H,OH), and spin-on-glass (SOG) thin films are a few applications. Due to the nature of the technique, FTIR instrumentation is one of the most extensively computer-dependent pieces of equipment that is likely to be found in a microelectronics plant. In the role of fab monitor or reactor characterization tool, FTIR instruments can rapidly generate large amounts of data. By linking a local FTIR data station to a remote minicomputer its capabilities are greatly improved. We discuss three caused of enhancement. First, the FTIR in the fab area communicates and interacts in real time with the minicomputer: transferring data segments to it, instructing it to perform sophisticated processing, and returning the result to the operator in the fab. Characterizations of PSG thin films by this approach are discussed. Second, the spectra of large numbers of samples are processed locally. The large database is then transmitted to the minicomputer for study by statistical/graphics software. Results of CVD-reactor spatial profiling experiments for plasma SiON are presented. Third, processing of calibration spectra is performed on the minicomputer to optimize the accuracy and precision of a Partial Least Squares'' analysis mode. This model is then transferred to the data station in the fab. The analysis of BPSG thin films is discussed in this regard. The prospects for fully automated at-line monitoring and for real-time, in-situ monitoring will be discussed. 10 refs., 4 figs.

Cox, J.N.; Sedayao, J.; Shergill, G.; Villasol, R. (Intel Corp., Santa Clara, CA (USA)); Haaland, D.M. (Sandia National Labs., Albuquerque, NM (USA))

1990-01-01T23:59:59.000Z

8

Electron yield XAFS study of evaporated Co/Pd multilayers with various thickness ratios of Co to Pd sublayers: Simulations of the Co K-edge XAFS and fourier transforms  

SciTech Connect (OSTI)

Electron-yield XAFS measurements using the NSLS were made on e-beam evaporated Co/Pd multilayers with various sublayer thicknesses and different thickness ratios of Co to Pd sublayers. The Co K-edge and the Pd K-edge XAFS data were obtained for the Co/Pd multilayers with sublayer thicknesses of 3{Angstrom}/ 4{Angstrom}, 15{Angstrom}/4{Angstrom}, 3{Angstrom}/15{Angstrom}, 2.1{Angstrom}/13.5{Angstrom}, and 2.2{Angstrom}/4.5{Angstrom}. Fourier transforms of Co K XAFS for most samples show a splitting of major peak, and the magnitude ratio of these split peaks varies systematically with the thickness ratio of the Pd sublayer to the Co sublayer, whereas the Fourier transforms of the Pd K XAFS for the same samples do not show a splitting of peaks. As a preliminary analysis, the Co K XAFS and the split peaks in the Fourier transform for the Co/Pd(3{Angstrom}/4{Angstrom}) case were simulated by using the FEFF calculations, and the Co K XAFS and the major peak in the fourier transform for the Co/Pd(15{Angstrom}/4{Angstrom}) case were also simulated consistently.

Choi, M. [Catholic Univ. Medical Coll., Seoul (Korea, Republic of). Dept. of Physics; Joo, J.H. [Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Materials Design Lab.; Kim, S.K.; Kang, J.S.; Lee, Y.P. [Research Inst. of Industrial Science Technology, Pohang (Korea, Republic of); Shin, S.C. [Korea Advanced Inst. of Science and Technology, Seoul (Korea, Republic of); Heald, S.M. [Brookhaven National Lab., Upton, NY (United States)

1992-11-01T23:59:59.000Z

9

Electron yield XAFS study of evaporated Co/Pd multilayers with various thickness ratios of Co to Pd sublayers: Simulations of the Co K-edge XAFS and fourier transforms  

SciTech Connect (OSTI)

Electron-yield XAFS measurements using the NSLS were made on e-beam evaporated Co/Pd multilayers with various sublayer thicknesses and different thickness ratios of Co to Pd sublayers. The Co K-edge and the Pd K-edge XAFS data were obtained for the Co/Pd multilayers with sublayer thicknesses of 3[Angstrom]/ 4[Angstrom], 15[Angstrom]/4[Angstrom], 3[Angstrom]/15[Angstrom], 2.1[Angstrom]/13.5[Angstrom], and 2.2[Angstrom]/4.5[Angstrom]. Fourier transforms of Co K XAFS for most samples show a splitting of major peak, and the magnitude ratio of these split peaks varies systematically with the thickness ratio of the Pd sublayer to the Co sublayer, whereas the Fourier transforms of the Pd K XAFS for the same samples do not show a splitting of peaks. As a preliminary analysis, the Co K XAFS and the split peaks in the Fourier transform for the Co/Pd(3[Angstrom]/4[Angstrom]) case were simulated by using the FEFF calculations, and the Co K XAFS and the major peak in the fourier transform for the Co/Pd(15[Angstrom]/4[Angstrom]) case were also simulated consistently.

Choi, M. (Catholic Univ. Medical Coll., Seoul (Korea, Republic of). Dept. of Physics); Joo, J.H. (Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Materials Design Lab.); Kim, S.K.; Kang, J.S.; Lee, Y.P. (Research Inst. of Industrial Science Technology, Pohang (Korea, Republic of)); Shin, S.C. (Korea Advanced Inst. of Science and Technology, Seoul (Korea, Republic of)); Heald, S.M.

1992-01-01T23:59:59.000Z

10

Modeling Transformation  

E-Print Network [OSTI]

Modeling Transformation What does each step do? #12;Transformation Procedure #12;Transformation Procedure #12;Building Your Model Yarn = chromosomal DNA Beads - - - - - - - - - - - - - - Ribosomes #12;Add transformation solution Tube CaCl2 #12;Transformation solution: CaCl2

Rose, Michael R.

11

transformation restrictions  

E-Print Network [OSTI]

Integration of Graph Transformation and Temporal Logic for the Speci#12;cation of Distributed, namely distributed graph transformation and temporal logic. Distributed graph transformation is intended

Lyuu, Yuh-Dauh

12

Transformation Telepresence  

E-Print Network [OSTI]

Business Transformation through Telepresence Gaining Value with Enterprise Video Collaboration-based research and April, 2011 Business Transformation through Telepresence: Gaining Value with Enterprise Video be used to transform organizations. Why Does Your Business Need to Transform? Traditionally, organizations

Fisher, Kathleen

13

Transformations ENGINEERING  

E-Print Network [OSTI]

On the Complexity of the Discrete Fourier Transform and Related Linear Transforms Preliminary straight line program that computes an encoding of the Hadamard Transform. The transform itself can transforms, like the DFT. 1 Introduction The complexity of special linear transformations (computations

Gales, Mark

14

Transforming development  

E-Print Network [OSTI]

Transforming Java Bytecode Laurie Hendren, Patrick Lam, Jennifer for Analyzing and Transforming Java Bytecode -- p. 1/148 #12; ,Feng,Jennifer) Conclusion, Further Reading & Homework (Laurie) Soot, a Tool for Analyzing and Transforming Java Bytecode

Verbrugge, Clark

15

Transformations for densities Linear transformations  

E-Print Network [OSTI]

' & $ % Lecture 28 Transformations for densities Linear transformations 1-1 differentiable functions General transformations Expectation of a function 1 #12;' & $ % Transformations for discrete transformation of a U[0, 1] · Take X U[0, 1], so that fX(x) = 1 0 0 and set Y

Adler, Robert J.

16

Series Transmission Line Transformer  

DOE Patents [OSTI]

A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

2004-06-29T23:59:59.000Z

17

Appell Transformation and Canonical Transforms  

E-Print Network [OSTI]

The interpretation of the optical Appell transformation, as previously elaborated in relation to the free-space paraxial propagation under both a rectangular and a circular cylindrical symmetry, is reviewed. Then, the caloric Appell transformation, well known in the theory of heat equation, is shown to be amenable for a similar interpretation involving the Laplace transform rather than the Fourier transform, when dealing with the 1D heat equation. Accordingly, when considering the radial heat equation, suitably defined Hankel-type transforms come to be involved in the inherent Appell transformation. The analysis is aimed at outlining the link between the Appell transformation and the canonical transforms.

Amalia Torre

2011-07-19T23:59:59.000Z

18

Integral transformation and Darboux transformation  

E-Print Network [OSTI]

We review Darboux-Crum transformation of Heun's differential equation. By rewriting an integral transformation of Heun's differential equation into a form of elliptic functions, we see that the integral representation is a generalization of Darboux-Crum transformation. We also consider conservation of monodromy with respect to the transformations.

Kouichi Takemura

2009-11-11T23:59:59.000Z

19

Market Transformation  

SciTech Connect (OSTI)

Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its market transformation subprogram.

Not Available

2008-09-01T23:59:59.000Z

20

Particle Detector / Beam Current Transformer  

E-Print Network [OSTI]

Particle Detector / Beam Current Transformer Analysis December 8, 2009 Harold G. Kirk #12;ShotSignal,A.U. Proton Bunch Number Beam Current Transformer - 17011 0 2 4 6 8 0 2 4 6 8 10 12 14 16 18 20 Integrated Transformer Pump 187829 (au) Probe 196504 (au) Ratios: Beam Current 1.046 SF 1.019 2.9% difference #12;Shot

McDonald, Kirk

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

transformations: representations  

E-Print Network [OSTI]

Overview 1. Number transformations: from one base to another 2. Integer representations 3. Real rate, caches... #12; ECS 50, Discussion on 4/25 2 Integer Transformation: From Decimal to Binary Let, Discussion on 4/25 3 Integer Transformation: From Binary to Decimal Compute the weight of each digit position

Nguyen, Dat H.

22

Transformation Composition  

E-Print Network [OSTI]

Proc. AGTIVE'99, to appear in LNCS Graph Transformation Modules and their Composition ? Frank,knirsch,kreo,kuskeg@informatik.uni-bremen.de Abstract. In this paper, we investigate the notion of transformation modules as a structuring principle. Based on the notion of transformation units, a concept that allows to specify binary relations on graphs

Drewes, Frank

23

Transforming IMAGINATION  

E-Print Network [OSTI]

Our CAMPAIGN: Transforming MEDICINE Beyond IMAGINATION Endowed Professorships and Chairs #12;As, I know firsthand the many ways that endowed professorships can be transformative. Receiving the John. In the following pages, you can learn more about establishing your legacy by participating in the "Transforming

Weber, David J.

24

Transforming IMAGINATION  

E-Print Network [OSTI]

Our CAMPAIGN: Transforming MEDICINE Beyond IMAGINATION The School of Medicine Research Building in the Transforming Medicine Beyond Imagination Campaign, and to learn more about the specific needs, relative and translational research and help drive medical breakthroughs that will transform the health and well

Weber, David J.

25

isotopic ratio | EMSL  

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

isotopic ratio isotopic ratio Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a candidate...

26

TRANSFORME Dpartement  

E-Print Network [OSTI]

GEODESIE et TRANSFORMATIONS GEODESIQUES Serge BEUCHER CMM ­ Mines ParisTech Novembre 2013 #12;Cours transformation a la propriété suivante: dX,l+m = dX,l [ dX,m] · d est croissante et extensive · d est également croissante lorsqu'on la considère comme une transformation appliquée à l'espace géodésique X (Y fixé) YY

Mignotte, Max

27

Market Transformation  

Fuel Cell Technologies Publication and Product Library (EERE)

This Fuel Cell Technologies Program fact sheet outlines current status and challenges in the market transformation of hydrogen and fuel cell technologies.

28

TRANSFORME Dpartement  

E-Print Network [OSTI]

transformers of kind #3; ! #3;: NatF : #3; ! #3; NatF := #21;X: 1 +X Nat : #3; Nat := #22; NatF #15; Works also

Mignotte, Max

29

TRANSFORMATIONS GEODESIQUES  

E-Print Network [OSTI]

to A if there is a transformation R which for every input x of B yields an equivalent input R(x) of A. { The answer to x for B

Beucher, Serge

30

Transformative copy  

E-Print Network [OSTI]

The ability to create an unlimited number of identical copies is a privilege of digital documents. What if that would not be the case, if each copy of a digital file would go along with some sort of transformation? This ...

Offenhuber, Dietmar

2008-01-01T23:59:59.000Z

31

Transforming America's Energy Economy Transforming America's  

E-Print Network [OSTI]

#12;Transforming America's Energy Economy Transforming America's Energy Economy This document #12;Transforming America's Energy Economy A. Introduction: A Call for Action B. Envisioning the Future.5 Energy Efficiency C. Charting the Path Forward 1 #12;Transforming America's Energy Economy

32

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations  

E-Print Network [OSTI]

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations Multiple Systems for Spatial Imagery: Transformations of Objects and Bodies Jeffrey M. Zacks* and Barbara Tversky * Washington COGNITION & COMPUTATION #12;SPATIAL TRANSFORMATIONS 2 Abstract Problem-solving often requires imagining

Zacks, Jeffrey M.

33

Fourier Transform Pairs The Fourier transform transforms a function of  

E-Print Network [OSTI]

Fourier Transform Pairs The Fourier transform transforms a function of time, f(t), into a function of frequency, F(s): F {f(t)}(s) = F(s) = Z - f(t)e- j2st dt. The inverse Fourier transform transforms a func. The inverse Fourier transform of the Fourier trans- form is the identity transform: f(t) = Z - Z - f()e- j2s

Masci, Frank

34

transform your thinking transform your environment  

E-Print Network [OSTI]

MBA #12;transform your thinking 2 transform your environment 18 transform your career 26 start your transformation now 34 transform yourself www.olin.wustl.edu/MBA #12;What distinguishes Washington University. But a great business school transforms the way you think, lead and give back to the world community. #12

Subramanian, Venkat

35

The Laplace Transform 1 Laplace transform and inverse transform  

E-Print Network [OSTI]

The Laplace Transform Name: 1 Laplace transform and inverse transform Definition. Let f(t) be a function defined for t 0. Then the integral L {f(t)} = 0 e-st f(t)dt is said to be the Laplace transform of f provided the integral converges. Fill in the following Laplace transforms. L {tn } = L {eat } = L

Yengulalp, Lynne

36

The Laplace Transform 1 Laplace transform and inverse transform  

E-Print Network [OSTI]

The Laplace Transform Name: 1 Laplace transform and inverse transform Definition. Let f be a function defined for t 0. Then the integral L {f(t)} = 0 e-st f(t)dt is said to be the Laplace transform of f provided the integral converges. Fill in the following Laplace transforms. L {tn } = n! sn+1 L

Yengulalp, Lynne

37

EMSL - isotopic ratio  

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

isotopic-ratio en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublicationsmagnesium-behavior-and-structural-def...

38

Transformers Transformer device used to raise (for  

E-Print Network [OSTI]

Transformers Transformer ­ device used to raise (for transmission) and lower (for use) the ac with different #s of turns #12;Transformers Alternating primary current induces alternating magnetic flux in iron dt d NV B PP -= dt d NV B SS -= S S P P N V N V = #12;Transformers Transformation of voltage

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

39

Introduction to Image Transform Fourier Transform  

E-Print Network [OSTI]

Monad Transformers as Monoid Transformers Mauro Jaskelioff CIFASIS/Universidad Nacional de Rosario monadic semantics constructs complex monads by using monad transformers to add computational features transformers to monoid transformers. The generalization brings more simplicity and clarity, and opens the way

Chen, Chaur-Chin

40

Hough Transform Common Names: Hough transform  

E-Print Network [OSTI]

Hough Transform Common Names: Hough transform Brief Description The Hough transform is a technique that the desired features be specified in some parametric form, the classical Hough transform is most commonly used for the detection of regular curves such as lines, circles, ellipses, etc. A generalized Hough transform can

Masci, Frank

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Transformation and Quantization  

E-Print Network [OSTI]

Transformation and Quantization Shih-Hsuan Yang CSIE Department, NTUT #12;Contents Quantization and Distortion Analysis Lloyd Quantizer Vector Quantization Block Transforms Transform Kernels JPEG Other

Yang, Shih-Hsuan

42

Lorentz Transformations  

E-Print Network [OSTI]

This paper describes a particularly didactic and transparent derivation of basic properties of the Lorentz group. The generators for rotations and boosts along an arbitrary direction, as well as their commutation relations, are written as functions of the unit vectors that define the axis of rotation or the direction of the boost (an approach that can be compared with the one that in electrodynamics, works with the electric and magnetic fields instead of the Maxwell stress tensor). For finite values of the angle of rotation or the boost's velocity, collectively denoted by V, the existence of an exponential expansion for the coordinate transformation's matrix, M (in terms of GV where G is the generator) requires that the matrix's derivative with respect to V, be equal to GM. This condition can only be satisfied if the transformation is additive as it is indeed the case for rotations, but not for velocities. If it is assumed, however, that for boosts such an expansion exists, with V = V(v), v being the velocity, and if the above condition is imposed on the boost's matrix then its expression in terms of hyperbolic cosh(V) and sinh(V} is recovered, and the expression for V(= arc tanh(v)) is determined. A general Lorentz transformation can be written as an exponential containing the sum of a rotation and a boost, which to first order is equal to the product of a boost with a rotation. The calculations of the second and third order terms show that the equations for the generators used in this paper, allow to reliably infer the expressions for the higher order generators, without having recourse to the commutation relations. The transformationmatrices for Weyl spinors are derived for finite values of the rotation and velocity, and field representations, leading to the expression for the angular momentum operator, are studied.

Bernard R. Durney

2011-12-09T23:59:59.000Z

43

Testability Transformation --Program Transformation to Improve Testability  

E-Print Network [OSTI]

Testability Transformation -- Program Transformation to Improve Testability Mark Harman1 , Andr, 26 Richmond Street, Glasgow G1 1XH, UK. Corresponding Author. Abstract. Testability transformation. The goal is to improve the testing process by transforming a program to one that is more amenable

Binkley, David W.

44

Testability Transformation: Program Transformation to Improve Testability  

E-Print Network [OSTI]

Testability Transformation: Program Transformation to Improve Testability An Overview of Recent Author. Abstract. Testability transformation is a new form of program transfor- mation in which the goal to some chosen test adequacy criterion. The goal is to improve the testing process by transforming

Singer, Jeremy

45

Transformation Transformation Sommersemester 2012 1 / 121  

E-Print Network [OSTI]

Testability Transformation: Program Transformation to Improve Testability An Overview of Recent Author. Abstract. Testability transformation is a new form of program transfor- mation in which the goal to some chosen test adequacy criterion. The goal is to improve the testing process by transforming

Snelting, Gregor

46

Transformation Market Transformation is based on  

E-Print Network [OSTI]

Market Transformation Market Transformation is based on the concept that federal support can and reducing high insurance costs. Strategies Market Transformation's primary goal is to accelerate-world implementation Market transformation is built on forming partnerships with stakeholders through- out the country

47

Abundance ratios in hierarchical galaxy formation  

E-Print Network [OSTI]

The chemical enrichment and stellar abundance ratios of galaxies which form in a hierarchical clustering scheme are calculated. For this purpose I adopt the star formation histories (SFH) as they are delivered by semi-analytic models in Kauffmann (1996}. It turns out that the average SFH of cluster ellipticals does not yield globally alpha-enhanced stellar populations. The star burst that occurs when the elliptical forms in the major merger plays therefore a crucial role in producing alpha-enhancement. Only under the assumption that the IMF is significantly flattened with respect to the Salpeter value during the burst, a Mg/Fe overabundant population can be obtained. In particular for the interpretation of radial gradients in metallicity and alpha-enhancement, the mixing of global and burst populations are of great importance. The model predicts bright field galaxies to be less alpha-enhanced than their counterparts in clusters.

D. Thomas

1999-01-18T23:59:59.000Z

48

ARM - Measurement - Isotope ratio  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearch Related InformationAciddropletgovMeasurementsIsotope ratio ARM

49

Analyzing Signals Fourier transform  

E-Print Network [OSTI]

Page 1 1 Analyzing Signals Fourier transform s frequency content s linear combination of sin frequency analysis s windowed Fourier transform 6 #12;Page 4 7 Gabor Transform function to analyze window Gabor Transform Spatial domain Gabor domain b #12;Page 5 9 Gabor Transform Problems s discrete version

Sweldens, Wim

50

GIS TRANSFORMATIONS Conference Presentation  

E-Print Network [OSTI]

GIS TRANSFORMATIONS Conference Presentation Waldo Tobler Geography Department University, line, area, or field phenomena, then the sixteen common classes of transformation are: point -> point (scalar, vector, tensor) data, to obtain eighty distinct possible classes of transformation. The common

Tobler, Waldo

51

Transformations KolahdouzRahimi  

E-Print Network [OSTI]

An Incremental XSLT Transformation Processor for XML Document Manipulation Lionel Villard ­ Nabil;Outline Motivation Incremental transformations Principles Static Analysis Incremental execution Conclusion presentation architecture NegotiationNegotiation Result of negotiation (Transformation Sheets) Result

Lano, Kevin Charles

52

Evaluating Transformer Losses  

E-Print Network [OSTI]

and replacing them with low loss units. Today few industrials evaluate losses on either power or distribution transformers. TRANSFORMER LOSSES Transformer losses are divided 'nto load losses and no-load losses. Load losses are due to the winding resista... therefore are a function of the load squared. No-load losses occur from energizing the transformer steel and fore are continuous regardless of the transformer load. TRANSFORMER DESIGN Both types of losses are a fun ce here ion of design. If losses...

Grun, R. L. Jr.

53

Peak power ratio generator  

DOE Patents [OSTI]

A peak power ratio generator is described for measuring, in combination with a conventional power meter, the peak power level of extremely narrow pulses in the gigahertz radio frequency bands. The present invention in a preferred embodiment utilizes a tunnel diode and a back diode combination in a detector circuit as the only high speed elements. The high speed tunnel diode provides a bistable signal and serves as a memory device of the input pulses for the remaining, slower components. A hybrid digital and analog loop maintains the peak power level of a reference channel at a known amount. Thus, by measuring the average power levels of the reference signal and the source signal, the peak power level of the source signal can be determined.

Moyer, Robert D. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

54

Learning Transformations From Video  

E-Print Network [OSTI]

on Natural Video . . . . . . . . . . . . . . . . .3 Learning Continuous Transformation from VideoProposed Video Coder

Wang, Ching Ming

2010-01-01T23:59:59.000Z

55

transformation languages Introduction  

E-Print Network [OSTI]

transformation languages Introduction Transformation languages are widely used for to process can I change / transform the design of a certain task without changing it's logic The common/and hierarchical or/and abstract set of information. It can even be a stream of data. · The transformation engine

Nierstrasz, Oscar

56

TRANSFORMATIONAL GOALS FOR THE  

E-Print Network [OSTI]

TRANSFORMATIONAL GOALS FOR THE 21ST CENTURY PROGRESS REPORT FALL 2014 #12;CONTENTS EXECUTIVE Transformational Goals progress report Fall 2014 #12;Transformational Goals Progress Report | FALL 20142 In 2010 Island Build a community at URI that values and embraces equity and diversity #12;Transformational Goals

Rhode Island, University of

57

MARQUETTE UNIVERSITY Auditory Model-based Bionic Wavelet Transform  

E-Print Network [OSTI]

MARQUETTE UNIVERSITY Auditory Model-based Bionic Wavelet Transform For Speech Enhancement A THESIS. Therefore applying this method to speech enhancement may lead to a promising future in this field. Spectral subtraction methods have been widely used in speech enhancement, but all are notorious for unexpected music

Johnson, Michael T.

58

Energy Profit Ratio Compared  

SciTech Connect (OSTI)

We need more oil energy to take out oil under the ground. Limit resources make us consider other candidates of energy source instead of oil. Electricity shall be the main role more and more like electric vehicles and air conditioners so we should consider electricity generation ways. When we consider what kind of electric power generation is the best or suitable, we should not only power generation plant but whole process from mining to power generation. It is good way to use EPR, Energy Profit Ratio, to analysis which type is more efficient and which part is to do research and development when you see the input breakdown analysis. Electricity by the light water nuclear power plant, the hydrogen power plant and the geothermal power plant are better candidates from EPR analysis. Forecasting the world primly energy supply in 2050, it is said that the demand will be double of the demand in 2000 and the supply will not be able to satisfy the demand in 2050. We should save 30% of the demand and increase nuclear power plants 3.5 times more and recyclable energy like hydropower plants 3 times more. When the nuclear power plants are 3.5 times more then uranium peak will come and we will need breed uranium. I will analysis the EPR of FBR. Conclusion: A) the EPR of NPS in Japan is 17.4 and it is the best of all. B) Many countries will introduce new nuclear power plants rapidly may be 3.5 times in 2050. C) Uranium peak will happen around 2050. (author)

Amano, Osamu [2-11-1, Iwado Kita, Komae-shi, Tokyo 201-8511 (Japan)

2007-07-01T23:59:59.000Z

59

Perfect NOT transformation and conjugate transformation  

E-Print Network [OSTI]

The perfect NOT transformation, probabilistic perfect NOT transformation and conjugate transformation are studied. Perfect NOT transformation criteria on a quantum state set $S$ of a qubit are obtained. Two necessary and sufficient conditions for realizing a perfect NOT transformation on $S$ are derived. When these conditions are not satisfied we discuss a probabilistic perfect NOT transformation (gate). We construct a probabilistic perfect NOT machine (gate) by a general unitary-reduction operation. With a postselection of the measurement outcomes, the probabilistic NOT gate yields perfectly complements of the input states. We prove that one can realize probabilistically the NOT gate of the input states secretly chosen from a certain set $S=\\{|\\Psi_1>, |\\Psi_2>,..., |\\Psi_n>\\}$ if and only if $|\\Psi_1>, |\\Psi_2>,...,$ and $|\\Psi_n>$ are linearly independent. We also generalize the probabilistic NOT transformation to the conjugate transformation in the multi-level quantum system. The lower bound of the best possible efficiencies attained by a probabilistic perfect conjugate transformation are obtained.

Fengli Yan; Ting Gao; Zhichao Yan

2012-03-15T23:59:59.000Z

60

High compression ratio turbo gasoline engine operation using alcohol enhancement  

E-Print Network [OSTI]

Gasoline - ethanol blends were explored as a strategy to mitigate engine knock, a phenomena in spark ignition engine combustion when a portion of the end gas is compressed to the point of spontaneous auto-ignition. This ...

Lewis, Raymond (Raymond A.)

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Development of a Micropyrolyzer for Enhanced Isotope Ratio Measurement. |  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData FilesShape, Density,TiO2(110).Development ofMotors

62

Gauge transformations are canonical transformations, redux  

E-Print Network [OSTI]

In this short note we return to the old paper by Tai L. Chow (Eur. J. Phys. 18 (1997), 467-468) and correct its erroneous final part. We also note that the main result of that paper, that gauge transformations of mechanics are canonical transformations, was known much earlier.

Z. K. Silagadze

2014-09-02T23:59:59.000Z

63

Landscapes of transformation  

E-Print Network [OSTI]

This thesis aims to examine the cultural effect of transformation through the lens of procedural techniques applied to the human body and architecture. The body and architecture both operate as landscapes of transformation. ...

Ambs, Emily (Emily Kiersten)

2007-01-01T23:59:59.000Z

64

Metrics for enterprise transformation  

E-Print Network [OSTI]

The objective of this thesis is to depict the role of metrics in the evolving journey of enterprise transformation. To this end, three propositions are explored: (i) metrics and measurement systems drive transformation, ...

Blackburn, Craig D. (Craig David), S. M. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

65

Transformations Ordered set of  

E-Print Network [OSTI]

Modeling Transformations Michael Kazhdan (600.357 / 600.457) HB Ch. 5 FvDFH Ch. 5 #12;Anouncements · Assignment 2 has been posted! #12;Overview · Ray-Tracing so far · Modeling transformations #12;Ray Casting

Jacobs, David

66

The Patch Transform  

E-Print Network [OSTI]

The patch transform represents an image as a bag of overlapping patches sampled on a regular grid. This representation allows users to manipulate images in the patch domain, which then seeds the inverse patch transform to ...

Avidan, Shai

67

LAPPED TRANSFORMS COMPRESSION  

E-Print Network [OSTI]

Chapter 6 LAPPED TRANSFORMS FOR IMAGE COMPRESSION Ricardo L. de Queiroz Digital Imaging Technology aspects of lapped transforms and their applications to image compression. It is a subject that has been extensively studied mainly because lapped transforms are closely related to filter banks, wavelets, and time

de Queiroz, Ricardo L.

68

TRANSFORMATIONAL GOALS FOR THE  

E-Print Network [OSTI]

TRANSFORMATIONAL GOALS FOR THE 21ST CENTURY The presidenT's 21sT cenTury fund for excellence #12;TRANSFORMATIONAL GOALS FOR THE 21ST CENTURY 1 THE UNIVERSITY OF RHODE ISLAND The University of Rhode Island and transform our approaches to teaching, research, and service so that we can prepare students for a rapidly

Rhode Island, University of

69

Transforming Health Research  

E-Print Network [OSTI]

Transforming Health Research the first two years National Institute for Health Research Progress For Information R OCR R ef: 0 Gateway R ef: 9298 Title Transforming Health Research the first two years. Health Institute for Health Research Progress Report i Transforming Health Research the first two years National

Diggle, Peter J.

70

transform e Construction  

E-Print Network [OSTI]

Abstraction by Symbolic Indexing Transformations Thomas F. Melham1 and Robert B. Jones2 1 describes some logical machinery aimed at bridging these gaps. We present an algorithm to transform ordinary-conditions that must hold for this transformation to be sound. We also describe how the algorithm can be applied

Csürös, Miklós

71

Transformation and Quantization  

E-Print Network [OSTI]

' & $ % Linear Transformations (Yet Again!!) Mark Gales CAMBRIDGE UNIVERSITY ENGINEERING DEPARTMENT mjfg@eng.cam.ac.uk 1 #12; ' & $ % Introduction Linear transformations within HMM systems have been shown to be very useful. ffl Adaptation: MLLR, SAT, CAT, Cluster Transform etc etc. ffl Feature space

Yang, Shih-Hsuan

72

Transforming Anxiety into ENERGYTM  

E-Print Network [OSTI]

Transforming Anxiety into ENERGYTM How to Prevent Panic and Promote Productivity in Turbulent Times By Wendy Mack with contributions from Meredith Kimbell and Myron Radio #12;Transforming Anxiety into Energy, consultants, and researchers who shared their stories and expertise. 1 #12;Transforming Anxiety into Energy

Maryland, Baltimore County, University of

73

Spacetime transformation acoustics  

E-Print Network [OSTI]

A recently proposed analogue transformation method has allowed the extension of transformation acoustics to general spacetime transformations. We analyze here in detail the differences between this new analogue transformation acoustics (ATA) method and the standard one (STA). We show explicitly that STA is not suitable for transformations that mix space and time. ATA takes as starting point the acoustic equation for the velocity potential, instead of that for the pressure as in STA. This velocity-potential equation by itself already allows for some transformations mixing space and time, but not all of them. We explicitly obtain the entire set of transformations that do not leave its form invariant. It is in these cases that ATA shows its true potential, allowing for building a transformation acoustics method that enables the full range of spacetime transformations. We provide an example of an important transformation which cannot be achieved with STA. Using this transformation, we design and simulate an acoustic frequency converter via the ATA approach. Furthermore, in those cases in which one can apply both the STA and ATA approaches, we study the different transformational properties of the corresponding physical quantities.

C. Garca-Meca; S. Carloni; C. Barcel; G. Jannes; J. Snchez-Dehesa; A. Martnez

2014-07-08T23:59:59.000Z

74

TRANSFORM a electronics  

E-Print Network [OSTI]

THE DISCRETE FRACTIONAL FOURIER TRANSFORM a thesis submitted to the department of electrical TRANSFORM C ¸a~ gatay Candan M.S. in Electrical and Electronics Engineering Supervisor: Haldun M. ¨ Ozakta Transform (FrFT) is proposed, discussed and consolidated. The discrete trans­ form generalizes the Discrete

Candan, Cagatay

75

Transformation haskell-Programs  

E-Print Network [OSTI]

On the Transformation of Control Flow between Block-Oriented and Graph-Oriented Process Modeling E-mail: zdun@acm.org Abstract: Much recent research work discusses the transformation between differ. In this article, we aim to abstract from concrete transformations by distinguishing two major paradigms

Ábrahám, Erika

76

The Tunneling Transform  

E-Print Network [OSTI]

We supplement the Lorentz transform $L(v)$ with a new "Tunneling" transform $T(v)$. Application of this new transform to elementary quantum mechanics offers a novel, intuitive insight into the nature of quantum tunneling; in particular, the so called "Klein Paradox" is discussed.

Robert Hipple

2014-11-10T23:59:59.000Z

77

Transforming Data into Knowledge  

E-Print Network [OSTI]

The Application Of Correctness Preserving Transformations To Software Maintenance J. Paul Gibson transformation (CPT), to a real software engineering prob- lem: the need for optimization during the maintenance of code. We present four program transformations and a model that forms a framework for proof

Giles, C. Lee

78

transforming human health  

E-Print Network [OSTI]

transforming human health AnnUAl REpoRt 2011­2012 #12;#12;how we're changing medical research 1 are transforming health. He proposed an entirely new theory for developing drugs to treat diseases that have malaria and solid tumors such as lung and breast cancers are in development. #12;A TrAnsformATive educ

Kenny, Paraic

79

Transforming our information systems  

E-Print Network [OSTI]

Transforming our information systems and technology Information Systems Development Framework #12 university. In support of this position we are transforming our information systems, servicesDonald Principal and Vice-Chancellor #12;Strategy for transformation Tactical Delivering the services and tools our

Strathclyde, University of

80

STATISTICAL PROPERTIES OF STFT RATIOS FOR TWO CHANNEL SYSTEMS AND APPLICATIONS TO BLIND SOURCE SEPARATION  

E-Print Network [OSTI]

SEPARATION Radu Balan and Justinian Rosca frvbalan,roscag@scr.siemens.com Siemens Corporate Research Princeton, NJ 08540 ABSTRACT The ratio of the short time Fourier transform (STFT) coe cients of signals

Maryland at College Park, University of

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Mapping the Energy Distribution of SERRS Hot Spots from Anti-Stokes to Stokes Intensity Ratios  

E-Print Network [OSTI]

Mapping the Energy Distribution of SERRS Hot Spots from Anti- Stokes to Stokes Intensity Ratios in the anti-Stokes to Stokes intensity ratios in single-molecule surface-enhanced resonance Raman scattering-enhanced Raman scattering. Moreover, a methodology to estimate the distribution of resonance energies

Brolo, Alexandre G.

82

Invertible Darboux Transformations  

E-Print Network [OSTI]

For operators of many different kinds it has been proved that (generalized) Darboux transformations can be built using so called Wronskian formulae. Such Darboux transformations are not invertible in the sense that the corresponding mappings of the operator kernels are not invertible. The only known invertible ones were Laplace transformations (and their compositions), which are special cases of Darboux transformations for hyperbolic bivariate operators of order 2. In the present paper we find a criteria for a bivariate linear partial differential operator of an arbitrary order d to have an invertible Darboux transformation. We show that Wronkian formulae may fail in some cases, and find sufficient conditions for such formulae to work.

Ekaterina Shemyakova

2013-01-04T23:59:59.000Z

83

System and method for high precision isotope ratio destructive analysis  

DOE Patents [OSTI]

A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios that can be determined at approximately 1% or better precision and accuracy (relative standard deviation).

Bushaw, Bruce A; Anheier, Norman C; Phillips, Jon R

2013-07-02T23:59:59.000Z

84

Transformation Nets -A Runtime Model for Transformation Languages  

E-Print Network [OSTI]

Transformation Nets - A Runtime Model for Transformation Languages Johannes Schoenboeck Institute transformation languages. Although numerous approaches are available, they lack convenient facilities for supporting debugging and understand- ing of the transformation logic. This is not least because

Hochreiter, Sepp

85

High ratio recirculating gas compressor  

DOE Patents [OSTI]

A high ratio positive displacement recirculating rotary compressor is disclosed. The compressor includes an integral heat exchanger and recirculation conduits for returning cooled, high pressure discharge gas to the compressor housing to reducing heating of the compressor and enable higher pressure ratios to be sustained. The compressor features a recirculation system which results in continuous and uninterrupted flow of recirculation gas to the compressor with no direct leakage to either the discharge port or the intake port of the compressor, resulting in a capability of higher sustained pressure ratios without overheating of the compressor. 10 figs.

Weinbrecht, J.F.

1989-08-22T23:59:59.000Z

86

Grid Transformation Workshop  

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

3-03-Grid-Transformation-Workshop Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects &...

87

Transforming a Transformative School | Department of Energy  

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

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 Delicious Rank EERE:YearRound-Up from theDepartment of EnergyThe Sun andDepartmentTransformationalTransforming a

88

Deployment & Market Transformation (Brochure)  

SciTech Connect (OSTI)

NREL's deployment and market transformation (D and MT) activities encompass the laboratory's full range of technologies, which span the energy efficiency and renewable energy spectrum. NREL staff educates partners on how they can advance sustainable energy applications and also provides clients with best practices for reducing barriers to innovation and market transformation.

Not Available

2012-04-01T23:59:59.000Z

89

Biochemical transformation of coals  

DOE Patents [OSTI]

A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed. 7 figs.

Lin, M.S.; Premuzic, E.T.

1999-03-23T23:59:59.000Z

90

Exploring Functional Mellin Transforms  

E-Print Network [OSTI]

We define functional Mellin transforms within a scheme for functional integration proposed in [1]. Functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

J. LaChapelle

2015-01-08T23:59:59.000Z

91

TRANSFORMATION FOURIER--BOREL  

E-Print Network [OSTI]

LA TRANSFORMATION DE FOURIER--BOREL : ?? ?? de Hilbert est duale de celle de Gel'fond, tandis que la z e , t h d dz t dont la transforme ??e de Fourier--Borel est #(u) = q th u t e h#u . 0 1 #(## 0 # 1

Waldschmidt, Michel

92

Transforming Education at Einstein  

E-Print Network [OSTI]

Transforming Education at Einstein EinstEin Winter/spring 2012 The Magazine for Alumni and Friends trANsfOrMiNg eDuCAtiON At eiNsteiN Education at Albert Einstein College of Medicine is undergoing

Yates, Andrew

93

Amplified Quantum Transforms  

E-Print Network [OSTI]

In this thesis we investigate two new Amplified Quantum Transforms. In particular we create and analyze the Amplified Quantum Fourier Transform (Amplified-QFT) and the Amplified-Haar Wavelet Transform. First, we provide a brief history of quantum mechanics and quantum computing. Second, we examine the Amplified-QFT in detail and compare it against the Quantum Fourier Transform (QFT) and Quantum Hidden Subgroup (QHS) algorithms for solving the Local Period Problem. We calculate the probabilities of success of each algorithm and show the Amplified-QFT is quadratically faster than the QFT and QHS algorithms. Third, we examine the Amplified-QFT algorithm for solving The Local Period Problem with an Error Stream. Fourth, we produce an uncertainty relation for the Amplified-QFT algorithm. Fifth, we show how the Amplified-Haar Wavelet Transform can solve the Local Constant or Balanced Signal Decision Problem which is a generalization of the Deutsch-Jozsa algorithm.

David Cornwell

2014-06-01T23:59:59.000Z

94

Program Transformation Mechanics A Classification of Mechanisms for Program Transformation  

E-Print Network [OSTI]

Program Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing Transformation Systems Jonne van Wijngaarden Eelco Visser UU-CS-2003-048 Institute Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing

Utrecht, Universiteit

95

Logarithmic transformation of response Logarithmic transformation of response  

E-Print Network [OSTI]

Logarithmic transformation of response Logarithmic transformation of response Often, support S of Y is S = (0, ). Logarithm is then one of transformations to consider when trying to obtain a correct (wrong. Model Building 1. Transformation of response #12;Logarithmic transformation of response When does

Komarek, Arnost

96

IMAGINED TRANSFORMATIONS 1 Running head: IMAGINED TRANSFORMATION OF BODIES  

E-Print Network [OSTI]

IMAGINED TRANSFORMATIONS 1 Running head: IMAGINED TRANSFORMATION OF BODIES Imagined Transformations TRANSFORMATIONS 2 Abstract A number of spatial reasoning problems can be solved by performing an imagined transformation of one's egocentric perspective. A series of experiments were carried out to characterize

Zacks, Jeffrey M.

97

Laplace Transforms (Ch. 7) LAPLACE TRANSFORMS (Ch. 7)  

E-Print Network [OSTI]

Laplace Transforms (Ch. 7) LAPLACE TRANSFORMS (Ch. 7) ? restart; ? with( plots ): ? with( DEtools ): The Laplace transform is a very common, and useful, technique for solving and analyz­ ing the solution of the Laplace transform is that derivatives are transformed into powers; thus, the differential equation

Meade, Douglas B.

98

A discrete fractional random transform  

E-Print Network [OSTI]

We propose a discrete fractional random transform based on a generalization of the discrete fractional Fourier transform with an intrinsic randomness. Such discrete fractional random transform inheres excellent mathematical properties of the fractional Fourier transform along with some fantastic features of its own. As a primary application, the discrete fractional random transform has been used for image encryption and decryption.

Zhengjun Liu; Haifa Zhao; Shutian Liu

2006-05-20T23:59:59.000Z

99

Transformer Abdullah Al-Otaibi  

E-Print Network [OSTI]

Transformer Abdullah Al-Otaibi ID#242374 Section#2 Abstract- this is a brief description for transformer and how it works. I. DEFINITION A transformer is a device that transfers electrical energy from of the transformer in 1831. The transformer is used by Faraday only to demonstrate the principle of electromagnetic

Masoudi, Husain M.

100

Genetically enhanced cellulase production in Pseudomonas cellulosa using recombinant DNA technology  

DOE Patents [OSTI]

An enhanced strain of Pseudomonas celllulosa was obtained by introducing a recombinant genetic construct comprising a heterologous cellulase gene operably connected to a promoter into ATCC 55702, mutagenizing the transformants by treatment with MNNG, and selecting a high cellulase producing transformant. The transformant, designated Pseudomonas cellulosa ATCC XXXX, exhibits enhanced levels of cellulase production relative to the untransformed Pseudomonas cellulosa strain #142 ATCC 55702.

Dees, H. Craig (Knoxville, TN)

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Flexible Conversion Ratio Fast Reactor Systems Evaluation  

SciTech Connect (OSTI)

Conceptual designs of lead-cooled and liquid salt-cooled fast flexible conversion ratio reactors were developed. Both concepts have cores reated at 2400 MWt placed in a large-pool-type vessel with dual-free level, which also contains four intermediate heat exchanges coupling a primary coolant to a compact and efficient supercritical CO2 Brayton cycle power conversion system. Decay heat is removed passively using an enhanced Reactor Vessel Auxiliary Cooling System and a Passive Secondary Auxiliary Cooling System. The most important findings were that (1) it is feasible to design the lead-cooled and salt-cooled reactor with the flexible conversion ratio (CR) in the range of CR=0 and CR=1 n a manner that achieves inherent reactor shutdown in unprotected accidents, (2) the salt-cooled reactor requires Lithium thermal Expansion Modules to overcme the inherent salt coolant's large positive coolant temperature reactivity coefficient, (3) the preferable salt for fast spectrum high power density cores is NaCl-Kcl-MgCl2 as opposed to fluoride salts due to its better themal-hydraulic and neutronic characteristics, and (4) both reactor, but attain power density 3 times smaller than that of the sodium-cooled reactor.

Neil Todreas; Pavel Hejzlar

2008-06-30T23:59:59.000Z

102

Lorentz transformation by mimicking the Lorentz transformation  

E-Print Network [OSTI]

We show that starting with the fact that special relativity theory is concerned with a distortion of the observed length of a moving rod, without mentioning if it is a "contraction" or "dilation", we can derive the Lorentz transformations for the spacetime coordinates of the same event. This derivation is based on expressing the length of the moving rod as a sum of components with all the lengths involved in this summation being measured by the observers of the same inertial reference frame.

Bernhard Rothenstein; Stefan Popescu

2007-09-24T23:59:59.000Z

103

Real-time transient testing and performance of transformer differential relays  

SciTech Connect (OSTI)

Differential relays are used extensively to provide protection for power transformers. Several issues must be considered in their application to ensure adequate protection. These include transformer magnetizing inrush current, relay burden and current transformer performance. The use of low ratio current transformers in high magnitude fault applications can produce distorted secondary waveforms to the relay whose performance may be directly affected. There is also a relationship between the magnetizing inrush and current transformer performance which may affect the operation of the differential relay. This paper discusses these specific applications and the testing of a transformer differential relay under conditions of saturated CT`s using the Electro-Magnetic Transient Program (EMTP).

Stringer, N.T.; Lawhead, L.; Wilkerson, T.; Biggs, J. [Basler Electric Co., Highland, IL (United States); Rockefeller, G.D. [Rockefeller Associates, Inc., Morris Plains, NJ (United States)

1995-12-31T23:59:59.000Z

104

Transform Analysis Using the definition of the Laplace transform, Laplace transform properties, and the integral  

E-Print Network [OSTI]

Transform Analysis QUESTION 1 Using the definition of the Laplace transform, Laplace transform properties, and the integral tables on the course website, determine the Laplace transforms of the functions - = (3) QUESTION 2 Determine the inverse Laplace transform for the functions in equations (1)­(4). ( ) 3

Landers, Robert G.

105

TRANSFORMATIONS 4.1 TRANSFORMATIONS, ISOMETRIES. The term transformation has several  

E-Print Network [OSTI]

1 Chapter 4 TRANSFORMATIONS 4.1 TRANSFORMATIONS, ISOMETRIES. The term transformation has several. On the other hand, in linear algebra courses a linear transformation maps vectors to vectors and subspaces to subspaces. When we use the term transformation in geometry, however, we have all of these interpretations

106

Linear Transformer Ideal Transformer Consider linear and ideal transformers attached to Circuit 1 and Circuit 2.  

E-Print Network [OSTI]

Linear Transformer Ideal Transformer I1 + V2 _ + V1 _ Consider linear and ideal transformers in linear transformer equations for :MLL ,, 21 ( ) ( ) ( ) ( ) ( ) ( ) 12212212 2 1 112 2 12 2 1 2212 2 PP Now solve the linear transformer equations for the currents: 1 212 2 22 2 1 2 1 212 2 22 12 2 2 2

Kozick, Richard J.

107

Transforming California's Freight Transport System  

E-Print Network [OSTI]

Transforming California's Freight Transport System Policy Forum on the Role of Freight Transport Standard #12;2050 Vision- Key Conceptual Outcomes Technology Transformation Early Action Cleaner Combustion Multiple Strategies Federal Action Efficiency Gains Energy Transformation 9 #12;Further reduce localized

California at Davis, University of

108

The Quantum Mellin transform  

E-Print Network [OSTI]

We uncover a new type of unitary operation for quantum mechanics on the half-line which yields a transformation to ``Hyperbolic phase space''. We show that this new unitary change of basis from the position x on the half line to the Hyperbolic momentum $p_\\eta$, transforms the wavefunction via a Mellin transform on to the critial line $s=1/2-ip_\\eta$. We utilise this new transform to find quantum wavefunctions whose Hyperbolic momentum representation approximate a class of higher transcendental functions, and in particular, approximate the Riemann Zeta function. We finally give possible physical realisations to perform an indirect measurement of the Hyperbolic momentum of a quantum system on the half-line.

J. Twamley; G. J. Milburn

2007-02-12T23:59:59.000Z

109

Transformation inverse design  

E-Print Network [OSTI]

We present a new technique for the design of transformation-optics devices based on large-scale optimization to achieve the optimal effective isotropic dielectric materials within prescribed index bounds, which is ...

Liu, David

110

Functional Mellin Transforms  

E-Print Network [OSTI]

Functional integrals are defined in terms of locally compact topological groups and their associated Banach-valued Haar integrals. This approach generalizes the functional integral scheme of Cartier and DeWitt-Morette. The definition allows a construction of functional Mellin transforms. In turn, the functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

J. LaChapelle

2015-01-07T23:59:59.000Z

111

APPENDIX F. TRANSFORMS, COMPLEX ANALYSIS 1 Transforms, Complex  

E-Print Network [OSTI]

APPENDIX F. TRANSFORMS, COMPLEX ANALYSIS 1 Appendix F Transforms, Complex Analysis This appendix discusses Fourier and Laplace transforms as they are used in plasma physics and this book. Also, key properties of complex variable theory that are needed for understanding and inverting these transforms

Callen, James D.

112

From transformation traces to transformation rules: Assisting Model Driven Engineering  

E-Print Network [OSTI]

From transformation traces to transformation rules: Assisting Model Driven Engineering approach. In this paper we are interested in semi-automatically gen- erating labelled graph (model) transformations conform to a particu- lar syntax (meta-model). Those transformations are basic operations in model driven

Paris-Sud XI, Université de

113

Optical transformation from chirplet to fractional Fourier transformation kernel  

E-Print Network [OSTI]

We find a new integration transformation which can convert a chirplet function to fractional Fourier transformation kernel, this new transformation is invertible and obeys Parseval theorem. Under this transformation a new relationship between a phase space function and its Weyl-Wigner quantum correspondence operator is revealed.

Hong-yi Fan; Li-yun Hu

2009-02-11T23:59:59.000Z

114

Laplace Transforms An integral transform is an operator  

E-Print Network [OSTI]

9­28­1998 Laplace Transforms An integral transform is an operator F (s) = Z b a K(s; t)f(t) dt: The input to the transform is the function f(t); the output is the function F (s). (By convention, small letters denote the inputs to a transform, and the corresponding capital letters denote the corresponding

Ikenaga, Bruce

115

Transform Coding: Past, Present, and Future Transforms are perva-  

E-Print Network [OSTI]

Transform Coding: Past, Present, and Future Transforms are perva- sive in signal process- ing) and wavelets are part of the widely used JPEG standards, transforms are at the heart of the compression engine of transforms in compression, and the flurry of activ- ity in both research and applications around signal

Vetterli, Martin

116

Generalization of Conformal Transformations  

E-Print Network [OSTI]

Conformal transformations of a Euclidean (complex) plane have some kind of completeness (sufficiency) for the solution of many mathematical and physical-mathematical problems formulated on this plane. There is no such completeness in the case of Euclidean, pseudo-Euclidean and polynumber spaces of dimension greater than two. In the present paper we show that using the concepts of analogical geometries allows us to generalize conformal transformations not only to the case of Euclidean or pseudo-Euclidean spaces, but also to the case of Finsler spaces, analogous to the spaces of affine connectedness. Examples of such transformations in the case of complex and hypercomplex numbers H_4 are presented. In the general case such transformations form a group of transitions, the elements of which can be viewed as transitions between projective Euclidean geometries of a distinguished class fixed by the choice of metric geometry admitting affine coordinates. The correlation between functions realizing generalized conformal transformations and generalized analytical functions can appear to be productive for the solution of fundamental problems in theoretical and mathematical physics.

G. I. Garas'ko

2005-09-19T23:59:59.000Z

117

Stimulated Neutrino Transformation Through Turbulence  

E-Print Network [OSTI]

We derive an analytical solution for the flavor evolution of a neutrino through a turbulent density profile which is found to accurately predict the amplitude and transition wavelength of numerical solutions on a case-by-case basis. The evolution is seen to strongly depend upon those Fourier modes in the turbulence which are approximately the same as the splitting between neutrino eigenvalues. Transitions are strongly enhanced by those Fourier modes in the turbulence which are approximately the same as the splitting between neutrino eigenvalues. We also find a suppression of transitions due to the long wavelength modes when the ratio of their amplitude and the wavenumber is of order, or greater than, the first root of the Bessel function $J_0$.

Kelly M. Patton; James P. Kneller; Gail C. McLaughlin

2014-04-15T23:59:59.000Z

118

Variable ratio regenerative braking device  

DOE Patents [OSTI]

Disclosed is a regenerative braking device (10) for an automotive vehicle. The device includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (36) and an output shaft (42), clutches (38, 46) and brakes (40, 48) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. The rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft is clutched to the transmission while the brake on the output shaft is applied, and are torsionally relaxed to deliver energy to the vehicle when the output shaft is clutched to the transmission while the brake on the input shaft is applied. The transmission ratio is varied to control the rate of energy accumulation and delivery for a given rotational speed of the vehicle drivetrain.

Hoppie, Lyle O. (Birmingham, MI)

1981-12-15T23:59:59.000Z

119

Fourier Transform Infrared Spectroscopy  

E-Print Network [OSTI]

FTIR - 1 Fourier Transform Infrared Spectroscopy FTIR DETERMINATION OF MTBE IN GASOLINE AND ETHANOL FTIR DETERMINATION OF MTBE IN GASOLINE AND ETHANOL IN VODKA AND MOUTHWASH INTRODUCTION As a part has contained MTBE (methyl tert­butyl ether) as its primary oxygenate. However, there has been

Nizkorodov, Sergey

120

Research Councils UK Transforming  

E-Print Network [OSTI]

research is helping to accelerate the use of green energy technologies. RCUK has played a key role to help combat climate change, accelerate the deployment of green energy technologies and create newResearch Councils UK Transforming our energy future #12;Research funded by the Research Councils

Berzins, M.

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

TO TRANSFORM BIOMEDICAL ENGINEERING  

E-Print Network [OSTI]

IT'S TIME TO TRANSFORM BIOMEDICAL ENGINEERING EDUCATION #12;Charles H. & Bettye Barclay Professor Head, Department of Biomedical Engineering Texas A&M University We're dedicated to solving the world in biomedical engineering research and education ­ and we're well on our way. Our faculty continues to engineer

122

Weather-Corrected Performance Ratio  

SciTech Connect (OSTI)

Photovoltaic (PV) system performance depends on both the quality of the system and the weather. One simple way to communicate the system performance is to use the performance ratio (PR): the ratio of the electricity generated to the electricity that would have been generated if the plant consistently converted sunlight to electricity at the level expected from the DC nameplate rating. The annual system yield for flat-plate PV systems is estimated by the product of the annual insolation in the plane of the array, the nameplate rating of the system, and the PR, which provides an attractive way to estimate expected annual system yield. Unfortunately, the PR is, again, a function of both the PV system efficiency and the weather. If the PR is measured during the winter or during the summer, substantially different values may be obtained, making this metric insufficient to use as the basis for a performance guarantee when precise confidence intervals are required. This technical report defines a way to modify the PR calculation to neutralize biases that may be introduced by variations in the weather, while still reporting a PR that reflects the annual PR at that site given the project design and the project weather file. This resulting weather-corrected PR gives more consistent results throughout the year, enabling its use as a metric for performance guarantees while still retaining the familiarity this metric brings to the industry and the value of its use in predicting actual annual system yield. A testing protocol is also presented to illustrate the use of this new metric with the intent of providing a reference starting point for contractual content.

Dierauf, T.; Growitz, A.; Kurtz, S.; Cruz, J. L. B.; Riley, E.; Hansen, C.

2013-04-01T23:59:59.000Z

123

Linear Transformations, Canonoid Transformations and BiHamiltonian Structures  

E-Print Network [OSTI]

We give a characterization of linear canonoid transformations on symplectic manifolds and we use it to generate biHamiltonian structures for some mechanical systems. Utilizing this characterization we also study the behavior of quadratic superintegrable systems under canonoid transformations. We present a description of canonoid transformations due to E.T. Whittaker, and we show that it leads, in a natural way, to the modern, coordinate-independent definition of canonoid transformations. We also generalize canonoid transformations to Poisson manifolds by introducing Poissonoid transformations. We give examples of such transformations for Euler's equations of the rigid body (on $ \\mathfrak{ so}^\\ast (3) $ and $ \\mathfrak{ so}^\\ast (4)$) and for an integrable case of Kirchhoff's equations for the motion of a rigid body immersed in an ideal fluid. We study the relationship between biHamiltonian structures and Poissonoid transformations for these examples.

Giovanni Rastelli; Manuele Santoprete

2014-07-19T23:59:59.000Z

124

Enhancing Resource Sustainability by Transforming Urban and Suburban Transportation  

E-Print Network [OSTI]

battery electric LLM will have about the same life cycle costBattery contribution to retail cost () Average maintenance cost (/yr) Energy cost (/l or /kWh) (a) Total life cycle cost (

Delucchi, Mark

2009-01-01T23:59:59.000Z

125

Liquid Metal Transformers  

E-Print Network [OSTI]

The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clar...

Sheng, Lei; Liu, Jing

2014-01-01T23:59:59.000Z

126

Transformations of polynomial ensembles  

E-Print Network [OSTI]

A polynomial ensemble is a probability density function for the position of $n$ real particles of the form $\\frac{1}{Z_n} \\, \\prod_{jtransformations that preserve the structure of a polynomial ensemble. These transformations include the restriction of a Hermitian matrix by removing one row and one column, a rank-one modification of a Hermitian matrix, and the extension of a Hermitian matrix by adding an extra row and column with complex Gaussians.

Arno B. J. Kuijlaars

2015-01-30T23:59:59.000Z

127

Transformative Wave Technologies Kent, Washington  

E-Print Network [OSTI]

Transformative Wave Technologies Kent, Washington www.transformativewave.com #12;#12;North America are shifted to off peak times #12;#12;Transformative Wave Technologies www.transformativewave.com #12

California at Davis, University of

128

Transforming Parks and Protected Areas  

E-Print Network [OSTI]

Transforming Parks and Protected Areas Policy and governance in a changing world Edited by Kevin S from the British Library Library of Congress Cataloging In Publication Data Transforming parks

Bolch, Tobias

129

Nonlocal conservation laws and related Bcklund transformations via reciprocal transformations  

E-Print Network [OSTI]

A set of infinitely many nonlocal conservation laws are revealed for (1+1)-dimensional evolution equations. For some special known integrable systems, say, the KdV and Dym equations, it is found that different nonlocal conservation laws can lead to same new integrable systems via reciprocal transformation. On the other hand, it can be considered as one solution of the new model obtained via reciprocal transformation(s) can be changed to different solutions of the original model. The fact indicates also that two or more different (local and nonlocal) conservation laws can be used to find implicit auto-B\\"acklund transformations via reciprocal transformation to other systems.

Sen-Yue Lou

2014-06-08T23:59:59.000Z

130

Generalized Transforms and Special Functions  

E-Print Network [OSTI]

We study the properties of different type of transforms by means of operational methods and discuss the relevant interplay with many families of special functions. We consider in particular the binomial transform and its generalizations. A general method, based on the use of the Fourier transform technique, is proposed for the study of the properties of functions of operators.

G. Dattoli; E. Sabia

2010-10-08T23:59:59.000Z

131

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey B-Array, November 22nd , 2013 Summary: None connections in the cabinet and may be indicating a problem inside the transformer. If the heating on these bushings continues the transformer may need service. NOTE: The low ambient temperature and good conductance

Groppi, Christopher

132

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey D-Array, April 5th 2013 #12;VLA Antenna Pad Transformer Breaker Survey D-Array, April 2013, Bob Broilo 2 Summary: No action needed. Inspected by: Bob2 Visible Light Image Notes: #12;VLA Antenna Pad Transformer Breaker Survey D-Array, April 2013, Bob

Groppi, Christopher

133

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey A-Array, July 2011, Bob Broilo #12;A-Array Antenna Pad Transformer Survey July 2011, Bob Broilo 2 Inspected by: Bob Broilo Inspection Date: 6/16/2011 2 Transformer Survey July 2011, Bob Broilo 3 Inspected by: Bob Broilo Inspection Date: 6/16/2011 1:58:06 PM

Groppi, Christopher

134

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey C-Array, August 20th 2013 #12;VLA Antenna Pad Transformer Breaker Survey C-Array, August 2013, Bob Broilo 2 Summary: Breaker at CE7 needs to be replaced transformer can be shut down with the switch at DE9. Inspected by: Bob Broilo Inspection Date: 8/16/2013 2

Groppi, Christopher

135

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey D-Array, October 2011, Bob Broilo #12;D-Array Antenna Pad Transformer Survey October 2011, Bob Broilo 2 Inspected by: Bob Broilo Inspection Date: 10-hand) feeds DE2. #12;D-Array Antenna Pad Transformer Survey October 2011, Bob Broilo 3 Inspected by: Bob

Groppi, Christopher

136

The Transformer By Aaron Lo  

E-Print Network [OSTI]

(3) Transforming lambda-expressions with several patterns n pat 1 : : : pat n -> exp n pat 1 -> (n pat 2 -> : : : (n pat n -> exp) : : :) where n #21; 2 (4) Transforming lambda-patterns into case n pat -> exp n var -> case var of pat -> exp where pat is no variable, var is new (5) Transforming case

Treuille, Adrien

137

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey C-Array, April 2012, Bob Broilo #12;C-Array Antenna Pad Transformer Survey April 2012, Bob Broilo 2 Inspected by: Bob Broilo Inspection Date: 4/4/2012 2 Pad Transformer Survey April 2012, Bob Broilo 3 Inspected by: Bob Broilo Inspection Date: 4/4/2012 2

Groppi, Christopher

138

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey A-Array, May 20, 2014 Summary: The breakers at AN5 Transformer Breaker Survey A-Array, May 2014, Bob Broilo 2 Inspected by: Bob Broilo Inspection Date: 5 Notes: #12;VLA Antenna Pad Transformer Breaker Survey A-Array, May 2014, Bob Broilo 3 Inspected by: Bob

Groppi, Christopher

139

TRANSFORMING MEDICINE October 1, 2009  

E-Print Network [OSTI]

TRANSFORMING MEDICINE October 1, 2009 Strategic Plan #12;ABOUT THE KECK SCHOOL OF MEDICINE OF USC Century for the benefit of humankind. This is an exciting time of great transformation as we endeavor of Medicine is undergoing a major transformation. It was sparked by the expansion of biomedical research

Valero-Cuevas, Francisco

140

VLA Antenna Pad Transformer Breaker  

E-Print Network [OSTI]

NRAO VLA Antenna Pad Transformer Breaker Survey B-Array, May 2011, Bob Broilo #12;B-array Antenna Pad Transformer Breaker Survey May 2011, Bob Broilo 2 Inspected by: Bob Broilo Inspection Date: 5 Transformer Breaker Survey May 2011, Bob Broilo 3 Inspected by: Bob Broilo Inspection Date: 5/5/2011 3

Groppi, Christopher

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Transforming Commercial Building Operations  

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

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 Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment7 th ,TopDepartmentPlanarWorkshopTransforming

142

Transformations | 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 Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark JumpDetective:Toyo Aluminium KK JumpMyTransformations Jump

143

SPEECH ENHANCEMENT USING HARMONIC REGENERATION Cyril Plapous 1  

E-Print Network [OSTI]

SPEECH ENHANCEMENT USING HARMONIC REGENERATION Cyril Plapous 1 , Claude Marro 1 , Pascal Scalart 2 in enhanced speech because of the non reliability of estimators for small signal- to-noise ratios. We propose The problem of enhancing speech degraded by additive noise, when only the noisy speech is available, has been

Paris-Sud XI, Université de

144

Liquid Metal Transformers  

E-Print Network [OSTI]

The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clarified. Such events are hard to achieve otherwise on rigid metal or conventional liquid spheres. This finding has both fundamental and practical significances which suggest a generalized way of making smart soft machine, collecting discrete metal fluids, as well as flexibly manipulating liquid metal objects including accompanying devices.

Lei Sheng; Jie Zhang; Jing Liu

2014-01-30T23:59:59.000Z

145

LU transformation invariant operators and LU transformation invariant  

E-Print Network [OSTI]

We proposed a concept of LU transformation invariant operators. By using this operator, arbitrary multi-qubit states LU transformation invariant and SLOCC invariant could be easily obtained. And we find that presences two kinds of invariant operators and corresponding invariants. One kind of operators yields LU invariants and the other operators results in SLOCC invariants. For three-qubit states, all independence LU transformation invariant are obtained. Furthermore, by this system method, arbitrary multi-qubit states invariants can be given.

Xin-wei Zha; Chun-min Zhang

2007-02-06T23:59:59.000Z

146

z Transform Chapter Intended Learning Outcomes  

E-Print Network [OSTI]

z Transform Chapter Intended Learning Outcomes: (i) Understanding the relationship between transform and the Fourier transform for discrete-time signals (ii) Understanding the characteristics and properties of transform (iii) Ability to compute transform and inverse transform (iv) Ability to apply

So, Hing-Cheung

147

Eccentric crank variable compression ratio mechanism  

DOE Patents [OSTI]

A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.

Lawrence, Keith Edward (Kobe, JP); Moser, William Elliott (Peoria, IL); Roozenboom, Stephan Donald (Washington, IL); Knox, Kevin Jay (Peoria, IL)

2008-05-13T23:59:59.000Z

148

Abundance Ratios in Early-Type Galaxies  

E-Print Network [OSTI]

Although evidence is accumulating that abundance ratios in galaxies are often non-solar, they are far from understood. I resume the current evidence for non-solar abundance ratios, supplementing the recent review by Worthey (1998) with some new results. It appears that the Mg/Fe abundance ratio only depends on the mass of the galaxy, not on the formation time-scale. For massive galaxies [Mg/Fe] > 0, while small galaxies show solar abundance ratios. Information about abundances of other element is scarce, but new evidence is given that [Ca/Fe] is solar, or slightly lower than solar, contrary to what is expected for an alpha-element.

Reynier Peletier

1999-04-21T23:59:59.000Z

149

Power transformers - Part 11: Dry-type transformers  

E-Print Network [OSTI]

Applies to dry-type power transformers (including auto-transformers) having values of highest voltage for equipment up to and including 36 kV and at least one winding operating at greater than 1,1 kV. Applies to all construction technologies.

International Electrotechnical Commission. Geneva

2004-01-01T23:59:59.000Z

150

TRANSFORMATIONAL LEADERSHIP AND ALTRUISM: ROLE OF POWER DISTANCE IN A HIGH POWER DISTANCE CULTURE  

E-Print Network [OSTI]

Using a sample of 105 manager-subordinate dyads from a high power distance culture, the effects of power distance and transformational leadership on follower altruism were studied. Findings show a significant positive relationship between power distance and transformational leadership and between transformational leadership and follower altruism. The dimensions on which cultures differ have been identified earlier (Hofstede, 1980). The objective of this study is to look at the effect of a dimension on other variables, in a culture that is high on that dimension. Our contention is that in cultures that score high on the power distance dimension of Hofstede (1980) model, if managers maintain a high power distance between themselves and their followers, their transformational leadership would be enhanced, and transformational leadership in turn will enhance altruistic behavior of followers. Merely knowing the dimensions on which cultures differ is not enough. That knowledge has to be used to predict how an alignment with that dimension would affect other variables.

Ankush Punj; Venkat R. Krishnan

151

Inversion of the star transform  

E-Print Network [OSTI]

We define the star transform as a generalization of the broken ray transform introduced by us in previous work. The advantages of using the star transform include the possibility to reconstruct the absorption and the scattering coefficients of the medium separately and simultaneously (from the same data) and the possibility to utilize scattered radiation which, in the case of the conventional X-ray tomography, is discarded. In this paper, we derive the star transform from physical principles, discuss its mathematical properties and analyze numerical stability of inversion. In particular, it is shown that stable inversion of the star transform can be obtained only for configurations involving odd number of rays. Several computationally-efficient inversion algorithms are derived and tested numerically.

Fan Zhao; John C. Schotland; Vadim A. Markel

2014-05-06T23:59:59.000Z

152

Apparatus and methods for continuous beam fourier transform mass spectrometry  

DOE Patents [OSTI]

A continuous beam Fourier transform mass spectrometer in which a sample of ions to be analyzed is trapped in a trapping field, and the ions in the range of the mass-to-charge ratios to be analyzed are excited at their characteristic frequencies of motion by a continuous excitation signal. The excited ions in resonant motions generate real or image currents continuously which can be detected and processed to provide a mass spectrum.

McLuckey, Scott A. (Oak Ridge, TN); Goeringer, Douglas E. (Oak Ridge, TN)

2002-01-01T23:59:59.000Z

153

Gauge and Lorentz transformation placed on the same foundation  

E-Print Network [OSTI]

In this note we show that a "dynamical" interaction for arbitrary spin can be constructed in a straightforward way if gauge and Lorentz transformations are placed on the same foundation. As Lorentz transformations act on space-time coordinates, gauge transformations are applied to the gauge field. Placing these two transformations on the same ground means that all quantized field like spin-1/2 and spin-3/2 spinors are functions not only of the coordinates but also of the gauge field components. This change of perspective solves a couple of problems occuring for higher spin fields like the loss of causality, bad high-energy properties and the deviation of the gyromagnetic ratio from its constant value g=2 for any spin, as caused by applying the minimal coupling. Starting with a "dynamical" interaction, a non-minimal coupling can be derived which is consistent with causality, the expectation for the gyromagnetic ratio, and well-behaved for high energies. As a consequence, on this stage the (elektromagnetic) gauge field has to be considered as classical field. Therefore, standard quantum field theory cannot be applied. Despite this inconvenience, such a common ground is consistent with an old dream of physicists almost a century ago. Our approach, therefore, indicates a straightforward way to realize this dream.

R. Saar; S. Groote; H. Liivat; I. Ots

2011-09-20T23:59:59.000Z

154

Hottest spot temperatures in ventilated dry type transformers  

SciTech Connect (OSTI)

The hottest spot temperature allowance to be used for the different insulation system temperature classes is a major unknown facing IEEE Working Groups developing standards and loading guides for ventilated dry type transformers. In 1944, the hottest spot temperature allowance for ventilated dry type transformers was established as 30 C for 80 C average winding temperature rise. Since 1944, insulation temperature classes have increased to 220 C but IEEE standards continue to use a constant 30 C hottest spot temperature allowance. IEC standards use a variable hottest spot temperature allowance from 5 to 30 C. Six full size test windings were manufactured with imbedded thermocouples and 133 test runs performed to obtain temperature rise data. The test data indicated that the hottest spot temperature allowance used in IEEE standards for ventilated dry type transformers above 500 kVA is too low. This is due to the large thermal gradient from the bottom to the top of the windings caused by natural convection air flow through the cooling ducts. A constant ratio of hottest spot winding temperature rise to average winding temperature rise should be used in product standards for all insulation temperature classes. A ratio of 1.5 is suggested for ventilated dry type transformers above 500 kVA. This would increase the hottest spot temperature allowance from 30 C to 60 C and decrease the permissible average winding temperature rise from 150 C to 120 C for the 220 C insulation temperature class.

Pierce, L.W. (General Electric Co., Rome, GA (United States))

1994-01-01T23:59:59.000Z

155

Predicting hottest spot temperatures in ventilated dry type transformer windings  

SciTech Connect (OSTI)

Test data indicates that hottest spot allowances used in IEEE standards for ventilated dry type transformers above 500 kVA are too low. A mathematical model to predict hottest spot temperature rises in ventilated dry type transformers was developed. Data from six layer type test windings and a 2500 kva prototype was used to refine the model. A correlation for the local heat transfer coefficient in the cooling ducts was developed. The model was used to study the effect of various parameters on the ratio of hottest spot to average winding temperature rise. The number of conductor layers, insulation thickness, and conductor strand size were found to have only a minor effect on the ratio. Winding height was found to be the main parameter influencing the ratio of hottest spot to average winding temperature rise. The study based on the mathematical model confirmed previous conclusions based on test data that the hottest spot allowances used in IEEE standards for ventilated dry type transformers above 500 kVA should be revised.

Pierce, L.W. (General Electric Co., Rome, GA (United States))

1994-04-01T23:59:59.000Z

156

Formal Transformations and WSL Martin Ward  

E-Print Network [OSTI]

Formal Transformations and WSL Part Two Martin Ward STRL Senior Research Fellow Royal Society of Transformations #12;Types of Transformations A Syntactic Transformation changes the syntax of the program but preserves the exact sequence of operations carried out by the program. Many restructuring transformations

Singer, Jeremy

157

Transformer Efficiency Assessment - Okinawa, Japan  

SciTech Connect (OSTI)

The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of key transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturers factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCBs actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

2012-05-01T23:59:59.000Z

158

Transformer Efficiency Assessment - Okinawa, Japan  

SciTech Connect (OSTI)

The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of key transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturers factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCBs actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

2012-08-01T23:59:59.000Z

159

Effect of Compression Ratio and Piston Geometry on RCCI load...  

Broader source: Energy.gov (indexed) [DOE]

Compression Ratio and Piston Geometry on RCCI load limit Effect of Compression Ratio and Piston Geometry on RCCI load limit Explores the effect of compression ratio and piston...

160

8, 41994219, 2008 Study of the ratios  

E-Print Network [OSTI]

(UV) spectra of atmospheric global irradiance with the miniature fiber optic spectrometer AvaSpec-256ACPD 8, 4199­4219, 2008 Study of the ratios UV-A/UV-B from UV irradiance spectra I. Ansko et al@aai.ee) 4199 #12;ACPD 8, 4199­4219, 2008 Study of the ratios UV-A/UV-B from UV irradiance spectra I. Ansko et

Boyer, Edmond

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
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161

DNA UPTAKE BY TRANSFORMABLE BACTERIA  

SciTech Connect (OSTI)

The various processes of DNA uptake by cells can be categorized as: viral DNA entry, conjugation, or transformation. Within each category, a variety of mechanisms have been found. However, considerable similarities occur among the different mechanisms of conjugation and, especially, transformation. All of these natural mechanisms of DNA transfer are quite elaborate and involve multiple protein components, as the case may be, of the virus, the donor cell, and the recipient cell. The mechanisms of viral infection and conjugation will be discussed mainly with respect to their relevance to transformation.

LACKS,S.A.

1999-09-07T23:59:59.000Z

162

Transformer modeling in power systems  

SciTech Connect (OSTI)

A practical and accurate method of modeling various transformers in power systems using a general circuit model approach is described in this paper. The advantage of the new approach is that it can model transformers along with a complex circuit network, while avoiding the use of symmetrical components, unlike other approaches. The transformer modeling technique introduced in this paper is very useful to accurately determine fault current distribution in a power system and electromagnetic interference on pipelines and communication lines installed in a right-of-way consisting of transmission lines operating at different voltages.

Ma, J.; Dawalibi, F.P. [Safe Engineering Services and Technologies Ltd., Montreal, Quebec (Canada)

1999-11-01T23:59:59.000Z

163

Heat transfer from multiple row arrays of low aspect ratio pin fins Seth A. Lawson a,  

E-Print Network [OSTI]

Heat transfer from multiple row arrays of low aspect ratio pin fins Seth A. Lawson a, , Alan A 18 March 2011 Available online 5 May 2011 Keywords: Pin fins Heat transfer augmentation Array to enhance heat transfer. In modern gas turbines, for exam- ple, airfoils are designed with sophisticated

Thole, Karen A.

164

BAYESIAN SINGLE CHANNEL SPEECH ENHANCEMENT EXPLOITING SPARSENESS IN THE ICA DOMAIN  

E-Print Network [OSTI]

BAYESIAN SINGLE CHANNEL SPEECH ENHANCEMENT EXPLOITING SPARSENESS IN THE ICA DOMAIN Liang Hong We propose a Bayesian single channel speech enhance- ment algorithm to exploit speech sparseness, further used to estimate enhanced speech in the time domain, and (2) ICA domain transformation of data

Maryland at College Park, University of

165

Mineral Transformation and Biomass Accumulation Associated With  

E-Print Network [OSTI]

Mineral Transformation and Biomass Accumulation Associated With Uranium Bioremediation at Rifle transformation and biomass accumulation, both of which can alter the flow field and potentially bioremediation to understand the biogeochemical processes and to quantify the biomass and mineral transformation/ accumulation

Hubbard, Susan

166

Transforms for the Motion Compensation Residual  

E-Print Network [OSTI]

The Discrete-Cosine-Transform (DCT) is the most widely used transform in image and video compression. Its use in image compression is often justified by the notion that it is the statistically optimal transform for first-order ...

Kamisli, Fatih

167

TRANSFORMING ACADEMIA Historical Developments, Contemporary Perspectives and  

E-Print Network [OSTI]

ISyE 8803A TRANSFORMING ACADEMIA Historical Developments, Contemporary Perspectives independence and this organizational structure represent the first major transformation of academia. These characteristics of academia have persisted for over 900 years and seem immutable. Yet, notable transformations

Li, Mo

168

Ancilla Approximable Quantum State Transformations  

E-Print Network [OSTI]

We consider the transformations of quantum states obtainable by a process of the following sort. Combine the given input state with a specially prepared initial state of an auxiliary system. Apply a unitary transformation to the combined system. Measure the state of the auxiliary subsystem. If (and only if) it is in a specified final state, consider the process successful, and take the resulting state of the original (principal) system as the result of the process. We review known information about exact realization of transformations by such a process. Then we present results about approximate realization of finite partial transformations. We consider primarily the issue of approximation to within a specified positive epsilon, but we also address the question of arbitrarily close approximation.

Andreas Blass; Yuri Gurevich

2014-03-30T23:59:59.000Z

169

Amendment 1 - Dry-type power transformers  

E-Print Network [OSTI]

Specifies requirements for dry-type power transformers (including auto-transformers) having values of highest voltage for equipment up to and including 36 kV. The following small and special dry-type transformers are not covered by this standard: -instrument transformers (covered by IEC 60185 and 60186); -transformers for static convertors (covered by IEC 60084, 60119 and 60146). Where IEC standards do not exist for other special transformers, this standard may be applicable as a whole or in part.

International Electrotechnical Commission. Geneva

1986-01-01T23:59:59.000Z

170

Coupled diffusional/displacive transformations  

E-Print Network [OSTI]

), TRIP steels (transformation in- duced plasticity), ausforming steels (plastically deformed austenite prior to quenching) and dual phase steels (a mixture of ferrite + martensite obtained by quenching from the 1+ Q' field). a c b d Figure 1... Supersaturated Ferrite Plates 137 v Abstract The displacive transformation of austenite to ferrite in steels containing both substitutional and interstitial elements has been studied. The aim was to establish the conditions under which plates of the product phase...

Mujahid, Shafiq Ahmad

171

On the broken ray transform  

E-Print Network [OSTI]

This PhD thesis studies the broken ray transform, a generalization of the geodesic X-ray transform where geodesics are replaced with broken rays that reflect on a part of the boundary. The fundamental question is whether this transform is injective. We employ four different methods to approach this question, and each of them gives interesting results. Direct calculation can be used in a ball, where the geometry is particularly simple. If the reflecting part of the boundary is (piecewise) flat, a reflection argument can be used to reduce the problem to the usual X-ray transform. In some geometries one can use broken rays near the boundary to determine the values of the unknown function at the reflector, and even construct its Taylor series. One can also use energy estimates -- which in this context are known as Pestov identities -- to show injectivity in the presence of one convex reflecting obstacle. Many of these methods work also on Riemannian manifolds. We also discuss the periodic broken ray transform, where the integrals are taken over periodic broken rays. The broken ray transform and its periodic version have applications in other inverse problems, including Calder\\'on's problem and problems related to spectral geometry. A more detailed abstract can be found in the PDF file. This version only contains the introductory parts of the thesis. The full thesis also contains five articles.

Joonas Ilmavirta

2014-09-26T23:59:59.000Z

172

Metamaterial flexible sheets could transform optics  

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

Metamaterial flexible sheets could transform optics Metamaterial flexible sheets could transform optics Advances would boost security screening systems, infrared thermal cameras,...

173

The Industrial Transformation of Subarctic Canada  

E-Print Network [OSTI]

in the subarctic region of Canada. The role of scientificTransformation of Subarctic Canada By Liza Piper Reviewed byTransformation of Subarctic Canada. Vancouver, BC: UBC

Mathoor, Vineeth

2011-01-01T23:59:59.000Z

174

Energy Department Finalizes Loan Guarantee for Transformational...  

Office of Environmental Management (EM)

Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C. -...

175

Investigation of Mineral Transformations in Wet Supercritical...  

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

Mineral Transformations in Wet Supercritical CO2 by Electron Microscopy. Investigation of Mineral Transformations in Wet Supercritical CO2 by Electron Microscopy. Abstract: The...

176

Mineralogical transformations controlling acid mine drainage...  

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

Mineralogical transformations controlling acid mine drainage chemistry. Mineralogical transformations controlling acid mine drainage chemistry. Abstract: The role of Fe(III)...

177

Marketing and Market Transformation | Department of Energy  

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

and Market Transformation Marketing and Market Transformation Presents how going green will grow your business, as well as how programs can overcome appraisal challenges....

178

Sandia National Laboratories: Solar Market Transformation  

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

Transformation * photovoltaic * Photovoltaics * PV * Renewable Energy * SAND 2011-4654W * Solar Energy * Solar Market Transformation * Solar Research Comments are closed. Renewable...

179

Building America Expert Meeting: Transforming Existing Buildings...  

Energy Savers [EERE]

Transforming Existing Buildings through New Media--An Idea Exchange Building America Expert Meeting: Transforming Existing Buildings through New Media--An Idea Exchange This report...

180

Enhanced Absorption Induced by a Metallic Nanoshell  

E-Print Network [OSTI]

Enhanced Absorption Induced by a Metallic Nanoshell Roi Baer* Department of Physical Chemistry ABSTRACT Nanoshells have been previously shown to have tunable absorption frequencies that are dependent on the ratio of their inner and outer radii. Inspired by this, we ask: can a nanoshell increase the absorption

Baer, Roi

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Environ. Sci. Technol. M92, 26,2454-2461 In-Situ Transformation of Carbon Tetrachloride and Other Halogenated  

E-Print Network [OSTI]

Environ. Sci. Technol. M92, 26,2454-2461 In-Situ Transformation of Carbon Tetrachloride and Other, California 94305-4020 Enhanced in-situ transformation of carbon tetrachloride (CT) was observed under anoxic Chlorinated aliphatic hydrocarbons (CAHs)with one or two carbon atoms are widely used as solvents, degreasing

Semprini, Lewis

182

Ninja data analysis with a detection pipeline based on the Hilbert-Huang Transform  

E-Print Network [OSTI]

The Ninja data analysis challenge allowed the study of the sensitivity of data analysis pipelines to binary black hole numerical relativity waveforms in simulated Gaussian noise at the design level of the LIGO observatory and the VIRGO observatory. We analyzed NINJA data with a pipeline based on the Hilbert Huang Transform, utilizing a detection stage and a characterization stage: detection is performed by triggering on excess instantaneous power, characterization is performed by displaying the kernel density enhanced (KD) time-frequency trace of the signal. Using the simulated data based on the two LIGO detectors, we were able to detect 77 signals out of 126 above SNR 5 in coincidence, with 43 missed events characterized by signal to noise ratio SNR less than 10. Characterization of the detected signals revealed the merger part of the waveform in high time and frequency resolution, free from time-frequency uncertainty. We estimated the timelag of the signals between the detectors based on the optimal overlap of the individual KD time-frequency maps, yielding estimates accurate within a fraction of a millisecond for half of the events. A coherent addition of the data sets according to the estimated timelag eventually was used in a characterization of the event.

Alexander Stroeer; Jordan Camp

2009-03-11T23:59:59.000Z

183

Fission Product Ratios as Treaty Monitoring Discriminants  

SciTech Connect (OSTI)

The International Monitoring System (IMS) of the Comprehensive Test Ban Treaty Organization (CTBTO) is currently under construction. The IMS is intended for monitoring of nuclear explosions. The radionuclide branch of the IMS monitors the atmosphere for short-lived radioisotopes indicative of a nuclear weapon test, and includes field collection and measurement stations, as well as laboratories to provide reanalysis of the most important samples and a quality control function. The Pacific Northwest National Laboratory in Richland, Washington hosts the United States IMS laboratory, with the designation RL16. Since acute reactor containment failures and chronic reactor leakage may also produce similar isotopes, it is tempting to compute ratios of detected isotopes to determine the relevance of an event to the treaty or agreement in question. In this paper we will note several shortcomings of simple isotopic ratios: (1) fractionation of different chemical species, (2) difficulty in comparing isotopes within a single element, (3) the effect of unknown decay times. While these shortcomings will be shown in the light of an aerosol sample, several of the problems extend to xenon isotopic ratios. The result of the difficulties listed above is that considerable human expertise will be required to convert a simple mathematical ratio into a criterion which will reliably categorize an event as reactor or weapon.

Miley, Harry S.; Bowyer, Ted W.; Greenwood, Lawrence R.; Arthur, Richard J.

2008-05-15T23:59:59.000Z

184

Blowing Ratio Effects on Film Cooling Effectiveness  

E-Print Network [OSTI]

The research focuses on testing the film cooling effectiveness on a gas turbine blade suction side surface. The test is performed on a five bladed cascade with a blow down facility. Four different blowing ratios are used in this study, which are 0...

Liu, Kuo-Chun

2010-01-14T23:59:59.000Z

185

Neutrino flavor ratios as diagnostic of solar WIMP annihilation  

E-Print Network [OSTI]

We consider the neutrino (and antineutrino) flavors arriving at Earth for neutrinos produced in the annihilation of weakly interacting massive particles (WIMPs) in the Sun's core. Solar-matter effects on the flavor propagation of the resulting $\\agt$ GeV neutrinos are studied analytically within a density-matrix formalism. Matter effects, including mass-state level-crossings, influence the flavor fluxes considerably. The exposition herein is somewhat pedagogical, in that it starts with adiabatic evolution of single flavors from the Sun's center, with $\\theta_{13}$ set to zero, and progresses to fully realistic processing of the flavor ratios expected in WIMP decay, from the Sun's core to the Earth. In the fully realistic calculation, non-adiabatic level-crossing is included, as are possible nonzero values for $\\theta_{13}$ and the CP-violating phase $\\delta$. Due to resonance enhancement in matter, nonzero values of $\\theta_{13}$ even smaller than a degree can noticeably affect flavor propagation. Both normal and inverted neutrino-mass hierarchies are considered. Our main conclusion is that measuring flavor ratios (in addition to energy spectra) of $\\agt$ GeV solar neutrinos can provide discrinination between WIMP models. In particular, we demonstrate the flavor differences at Earth for neutrinos from the two main classes of WIMP final states, namely $W^+ W^-$ and 95% $b \\bar{b}$ + 5% $\\tau^+\\tau^-$. Conversely, if WIMP properties were to be learned from production in future accelerators, then the flavor ratios of $\\agt$ GeV solar neutrinos might be useful for inferring $\\theta_{13}$ and the mass hierarchy.

Ralf Lehnert; Thomas J. Weiler

2007-08-08T23:59:59.000Z

186

The Ideal Transformer Description and Circuit Symbol  

E-Print Network [OSTI]

The Ideal Transformer Description and Circuit Symbol As with all the other circuit elements, there is a physical transformer commonly used in circuits whose behavior can be discussed in great detail. However, in many cases the practical transformer can be adequately approximated by the "ideal transformer," which

King, Roger

187

Phase Transformations in Confined Nanosystems  

SciTech Connect (OSTI)

This project discovered that non-equilibrium structures, including chemically ordered structures not observed in bulk systems, form in isolated nanoscale systems. Further, a generalized model was developed that effectively explained the suppression of equilibrium phase transformations. This thermodynamic model considered the free energy decrease associated with the phase transformation was less than the increase in energy associated with the formation of an interphase interface, therefore inhibiting the phase transformation. A critical diameter exists where the system transitions to bulk behavior, and a generalized equation was formulated that successfully predicted this transition in the Fe-Au system. This provided and explains a new route to novel structures not possible in bulk systems. The structural characterization was accomplished using transmission electron microscopy in collaboration with Matthew Kramer of Ames Laboratory. The PI and graduate student visited Ames Laboratory several times a year to conduct the experiments.

Shield, Jeffrey E. [Department of Mechanical & Materials Engineering] [Department of Mechanical & Materials Engineering; Belashchenko, Kirill [Department of Physics & Astronomy] [Department of Physics & Astronomy

2014-04-29T23:59:59.000Z

188

On the equivalence of state transformer semantics and predicate transformer semantics  

E-Print Network [OSTI]

On the equivalence of state transformer semantics and predicate transformer semantics Dedicated and the author [13] have worked out the equivalence between state transformer semantics and predicate transformer the last section, where the equivalence of predicate and state transformer semantics is finally put

Keimel, Klaus

189

Model Transformations? Transformation Models! Jean Bezivin (A) , Fabian Buttner (B) , Martin Gogolla (B) ,  

E-Print Network [OSTI]

Model Transformations? Transformation Models! Jean Bezivin (A) , Fabian B?uttner (B) , Martin of the current work on model transformations seems essentially operational and executable in nature. Executable, transformations can also be viewed as descriptive models by stating only the properties a transformation has

Gogolla, Martin - Fachbereich 3

190

ENGI 2422 Laplace Transforms Page 5-01 5.01 Transforms  

E-Print Network [OSTI]

ENGI 2422 Laplace Transforms Page 5-01 5.01 Transforms In some situations, a difficult problem can be transformed into an easier problem, whose solution can be transformed back into the solution of the original problem. For example, an integrating factor can sometimes be found to transform a non-exact first order

George, Glyn

191

Induced geometry from disformal transformation  

E-Print Network [OSTI]

In this note, we use the disformal transformation to induce a geometry from the manifold which is originally Riemannian. The new geometry obtained here can be considered as a generalization of Weyl integrable geometry. Based on these results, we further propose a geometry which is naturally a generalization of Weyl geometry.

Yuan, Fang-Fang

2015-01-01T23:59:59.000Z

192

Induced geometry from disformal transformation  

E-Print Network [OSTI]

In this note, we use the disformal transformation to induce a geometry from the manifold which is originally Riemannian. The new geometry obtained here can be considered as a generalization of Weyl integrable geometry. Based on these results, we further propose a geometry which is naturally a generalization of Weyl geometry.

Fang-Fang Yuan; Peng Huang

2015-02-08T23:59:59.000Z

193

Vehicle Technologies Office Merit Review 2014: High Compression Ratio Turbo Gasoline Engine Operation Using Alcohol Enhancement  

Broader source: Energy.gov [DOE]

Presentation given by Massachusetts Institute of Technology at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high...

194

Flexible C : N ratio enhances metabolism of large phytoplankton when resource supply is intermittent  

E-Print Network [OSTI]

Phytoplankton cell size influences particle sinking rate, food web interactions and biogeographical distributions. We present a model in which the uptake, storage and assimilation of nitrogen and carbon are explicitly ...

Blackford, J.

195

A high ON/OFF ratio organic film for photo- and electro-dual-mode recording  

SciTech Connect (OSTI)

To improve the stability of organic multifunctional materials and enhance the ON/OFF ratio, a donor-{pi}-acceptor molecule with the triphenylamine (TPA) unit is designed and synthesized. The TPA unit can effectively stabilize the charge transferred state, and the thin film shows excellent bistable electronic switching behavior with high ON/OFF current ratio of about 10{sup 5}. Meanwhile, reversible and stable nanometer-scale data storage is realized on the thin film by applying pulsed voltages, and optical information storage is achieved simultaneously by utilizing fluorescence changes under UV irradiation.

Li Heng [Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing 100083 (China); Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solid, Laboratory of New Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Wen Yongqiang; Li Gang; Ma Ying; Yang Lianming; Song Yanlin; Zhu Daoben [Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solid, Laboratory of New Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Li Pengwei; Wang Rongming [Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing 100083 (China); Yang Qinglin [School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100083 (China)

2009-04-20T23:59:59.000Z

196

aspect ratio tori: Topics by E-print Network  

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

efficiency versus a function of mobility ratio and aspect ratio for staggered line-drive waterflood pattern Texas A&M University - TxSpace Summary: ratios on five-spot and...

197

aspect ratio su-8: Topics by E-print Network  

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

efficiency versus a function of mobility ratio and aspect ratio for staggered line-drive waterflood pattern Texas A&M University - TxSpace Summary: ratios on five-spot and...

198

Microstructural Evidence for Conditioning-dependent (delta) -> (alpha)' Transformations in Retained (delta)-phase Pu-Ga  

SciTech Connect (OSTI)

The retained {delta} phase of a Pu-1.9 at.% Ga alloy is metastable with respect to the martensitic {delta} {yields} {alpha}{prime} transformation that occurs at low temperatures. This transformation has been shown to proceed by means of an isothermal martensitic mode, but the kinetics of the transformation are atypical. The transformation exhibits a 'double-C' in a time-temperature-transformation diagram, wherein there exist two temperatures where a given amount of transformation occurs in a minimum amount of time. The cause of the double-C kinetics remains uncertain, eliciting proposals of multiple mechanisms, multiple paths, or different morphologies as possible origins. Recently, a 'conditioning' treatment was found to affect the {delta} {yields} {alpha}{prime} transformation, but the underlying mechanism by which the conditioning treatment influences the transformation has not yet been resolved. In this study, microstructural characterization as a function of temperature, time, and conditioning has been employed to illuminate the role of conditioning in the {delta} {yields} {alpha}{prime} transformation. Conditioning is found to enhance transformation in the upper-C and to enable transformation in the lower-C. The data garnered from these experiments suggest that conditioning is intimately linked to nucleation processes and of little consequence to the growth and morphology of the {alpha}{prime} product phase.

Jeffries, J R; Blobaum, K M; Wall, M A; Schwartz, A J

2008-06-16T23:59:59.000Z

199

air-fuel ratio: Topics by E-print Network  

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

was performed to investigate the effects of air-fuel ratio, inlet boost pressure, hydrogen rich fuel reformate, and compression ratio on engine knock behavior. For each...

200

Two-Stage Variable Compression Ratio (VCR) System to Increase...  

Broader source: Energy.gov (indexed) [DOE]

Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in...

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Energy Balance Bowen Ratio Station (EBBR) Handbook  

SciTech Connect (OSTI)

The energy balance Bowen ratio (EBBR) system produces 30-minute estimates of the vertical fluxes of sensible and latent heat at the local surface. Flux estimates are calculated from observations of net radiation, soil surface heat flux, and the vertical gradients of temperature and relative humidity (RH). Meteorological data collected by the EBBR are used to calculate bulk aerodynamic fluxes, which are used in the Bulk Aerodynamic Technique (BA) EBBR value-added product (VAP) to replace sunrise and sunset spikes in the flux data. A unique aspect of the system is the automatic exchange mechanism (AEM), which helps to reduce errors from instrument offset drift.

Cook, DR

2011-02-23T23:59:59.000Z

202

Implications of Fast Reactor Transuranic Conversion Ratio  

SciTech Connect (OSTI)

Theoretically, the transuranic conversion ratio (CR), i.e. the transuranic production divided by transuranic destruction, in a fast reactor can range from near zero to about 1.9, which is the average neutron yield from Pu239 minus 1. In practice, the possible range will be somewhat less. We have studied the implications of transuranic conversion ratio of 0.0 to 1.7 using the fresh and discharge fuel compositions calculated elsewhere. The corresponding fissile breeding ratio ranges from 0.2 to 1.6. The cases below CR=1 (burners) do not have blankets; the cases above CR=1 (breeders) have breeding blankets. The burnup was allowed to float while holding the maximum fluence to the cladding constant. We graph the fuel burnup and composition change. As a function of transuranic conversion ratio, we calculate and graph the heat, gamma, and neutron emission of fresh fuel; whether the material is attractive for direct weapon use using published criteria; the uranium utilization and rate of consumption of natural uranium; and the long-term radiotoxicity after fuel discharge. For context, other cases and analyses are included, primarily once-through light water reactor (LWR) uranium oxide fuel at 51 MWth-day/kg-iHM burnup (UOX-51). For CR<1, the heat, gamma, and neutron emission increase as material is recycled. The uranium utilization is at or below 1%, just as it is in thermal reactors as both types of reactors require continuing fissile support. For CR>1, heat, gamma, and neutron emission decrease with recycling. The uranium utilization exceeds 1%, especially as all the transuranic elements are recycled. exceeds 1%, especially as all the transuranic elements are recycled. At the system equilibrium, heat and gamma vary by somewhat over an order of magnitude as a function of CR. Isotopes that dominate heat and gamma emission are scattered throughout the actinide chain, so the modest impact of CR is unsurprising. Neutron emitters are preferentially found among the higher actinides, so the neutron emission varies much stronger with CR, about three orders of magnitude.

Steven J. Piet; Edward A. Hoffman; Samuel E. Bays

2010-11-01T23:59:59.000Z

203

High aspect ratio, remote controlled pumping assembly  

DOE Patents [OSTI]

A miniature dual syringe-type pump assembly is described which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor. 4 figs.

Brown, S.B.; Milanovich, F.P.

1995-11-14T23:59:59.000Z

204

Meteorological Effects on Air/Fuel Ratio  

E-Print Network [OSTI]

1. "Temperature Compensat d Air/Fuel Ratio Control on a Recuperated Furnace," by J. L. Ferri. GTE Products Corporation, Towanda, PA, lECTC '83 2. Chemical Engineers Handbook, PerTY and Chilton, 5th ed.., (McGraw Hlln, p. 12-7. 3. "Technology..., E = (100 ... 10) (ill) - 100 = 17.2% excess a . 2 Example 2 A furnace uses recuperators which prehe~t the combustion air to 1200 OF using 30 OF air. WithJlOO OF air, the preheated air temperature will be approxIjrnately 1270 OF, a 70 OF increase...

Ferri, J. L.

1984-01-01T23:59:59.000Z

205

Variable Compression Ratio Engine | Department of Energy  

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

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 Delicious RankCombustion |Energy Usage »of EnergyTheTwoVulnerabilities | Department of|VTA,anCompression Ratio

206

Speech Enhancement of Spectral Magnitude Bin Trajectories using Gaussian Mixture-Model based Minimum Mean-Square Error Estimators  

E-Print Network [OSTI]

Speech Enhancement of Spectral Magnitude Bin Trajectories using Gaussian Mixture-Model based mean-square error es- timators have been applied to speech enhancement in the tem- poral, transform (e estimator for 8 kHz telephone-quality speech. Index Terms: Speech enhancement, minimum mean-square er- ror

207

The Energy Transformation Limit Theorem for Gas Flow Systems  

E-Print Network [OSTI]

The limit energy theorem which determines the possibility of transformation the energy flow in power systems in the absence of technical work is investigated and proved for such systems as gas lasers and plasmatrons, chemical gas reactors, vortex tubes, gas-acoustic and other systems, as well as a system of close stars. In the case of the same name ideal gas in the system the maximum ratio of energy conversion effectiveness is linked to the Carnot theorem, which in its turn is connected with the Nernst theorem. However, numerical analyses show that the class of flow energy systems is non-carnot one. The ratio of energy conversion effectiveness depends on the properties of the working medium; a conventional cycle in open-circuit is essentially irreversible. The proved theorem gives a more strongly worded II law of thermodynamics for the selected class of flow energy systems. Implications for astrophysical thermodynamic systems and the theory of a strong shock wave are discussed.

Volov, V T

2011-01-01T23:59:59.000Z

208

Ultrafast Transformations in Superionic Nanocrystals  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014 EIAUltrafast Transformations in Superionic

209

Continuous space-time transformations  

E-Print Network [OSTI]

We prove that every continuous map acting on the four-dimensional Minkowski space and preserving light cones in one direction only is either a Poincar\\'e similarity, that is, a product of a Lorentz transformation and a dilation, or it is of a very special degenerate form. In the presence of the continuity assumption the main tool in the proof is a basic result from the homotopy theory of spheres.

Clment de Seguins Pazzis; Peter emrl

2015-02-04T23:59:59.000Z

210

Hydraulic system for a ratio change transmission  

DOE Patents [OSTI]

Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

Kalns, Ilmars (Northville, MI)

1981-01-01T23:59:59.000Z

211

Ratios of heavy hadron semileptonic decay rates  

E-Print Network [OSTI]

Ratios of charmed meson and baryon semileptonic decay rates appear to be satisfactorily described by considering only the lowest-lying (S-wave) hadronic final states and assuming the kinematic factor describing phase space suppression is the same as that for free quarks. For example, the rate for $D_s$ semileptonic decay is known to be $(17.0 \\pm 5.3)%$ lower than those for $D^0$ or $D^+$, and the model accounts for this difference. When applied to hadrons containing $b$ quarks, this method implies that the $B_s$ semileptonic decay rate is about 1% higher than that of the nonstrange $B$ mesons. This small difference thus suggests surprisingly good local quark-hadron duality for $B$ semileptonic decays, complementing the expectation based on inclusive quark-hadron duality that these differences in rates should not exceed a few tenths of a percent. For $\\Lambda_b$ semileptonic decay, however, the inclusive rate is predicted to be about 13% greater than that of the nonstrange $B$ mesons. This value, representing a considerable departure from a calculation using a heavy quark expansion, is close to the corresponding experimental ratio $\\Gamma(\\Lambda_b)/ \\bar \\Gamma(B) = 1.13 \\pm 0.03$ of total decay rates.

Michael Gronau; Jonathan L. Rosner

2010-12-27T23:59:59.000Z

212

Molecular Mechanisms of Bacterial Mercury Transformation  

SciTech Connect (OSTI)

Mercury (Hg) is a major global pollutant arising from both natural and anthropogenic sources. Defining the factors that determine the relative affinities of different ligands for the mercuric ion, Hg2+, is critical to understanding its speciation, transformation, and bioaccumulation in the environment. Here, we used quantum chemistry to dissect the relative binding free energies for a series of inorganic anion complexes of Hg2+. The results show that, whereas in the gas phase the binding affinity of two identical anionic ligands (forming HgL2) increases with ligand (L) hardness, in contrast, in the aqueous phase the affinity increases with ligand softness. This switch in affinity upon hydration is shown to result mostly from interactions with only a small number (e.g. one or two) of water molecules. The results yield a clear, robust periodic trend within the chalcogenide and halide groups and are in agreement with the well-known experimentally observed preference of Hg2+ for soft ligands. By comparing the Hg2+ binding of one with two anions, the gas phase preferences are found to arise from the enhancement of reactivity of the cationic complex (HgL+) with the hardness of L. The approach establishes a theoretical basis for understanding Hg speciation in the biosphere.

smith, jeremy

2014-04-15T23:59:59.000Z

213

Counter urban transformation in Istanbul Beyoglu  

E-Print Network [OSTI]

Urban transformation has become central to the Turkish government's neo-liberal program of commercial development for Istanbul. These transformations have provoked public discontent and passionate responses, the largest ...

Uzunyayla, Sakine Dicle

2014-01-01T23:59:59.000Z

214

Harmonic Wavelet Transform and Image Approximation  

E-Print Network [OSTI]

DOI 10.1007/s10851-010-0202-x Harmonic Wavelet Transform andwe approximate f by a harmonic function u such that thebanks. We call this the Harmonic Wavelet Transform (HWT).

Zhang, Zhihua; Saito, Naoki

2010-01-01T23:59:59.000Z

215

Transforms for prediction residuals in video coding  

E-Print Network [OSTI]

Typically the same transform, the 2-D Discrete Cosine Transform (DCT), is used to compress both image intensities in image coding and prediction residuals in video coding. Major prediction residuals include the motion ...

Kam??l?, Fatih

2010-01-01T23:59:59.000Z

216

Measure Transformer Semantics for Bayesian Machine Learning  

E-Print Network [OSTI]

Measure Transformer Semantics for Bayesian Machine Learning Johannes Borgstr¨om1, Andrew D. Gordon1 define combinators for measure transformers, based on theorems in measure theory, and use these to give

Plotkin, Joshua B.

217

Enhanced Enterprise Zones (Missouri)  

Broader source: Energy.gov [DOE]

Enhanced Enterprise Zones aim at attracting new businesses or promoting an expansion of existing business in Missouri Enhanced Enterprise Zone. Tax credits will be an amount authorized by DED,...

218

Scalable enhancement of graphene oxide properties by thermally driven phase  

E-Print Network [OSTI]

Scalable enhancement of graphene oxide properties by thermally driven phase transformation Priyank,2,4 * and Jeffrey C. Grossman1 * Chemical functionalization of graphene is promising for a variety of next-generation technologies. Although graphene oxide (GO) is a versatile material in this direction, its use is limited

Wu, Junqiao

219

Mechanism and Kinetics of Solid-State Transformation in High-Temperature Processed Linepipe Steel  

E-Print Network [OSTI]

Mechanism and Kinetics of Solid-State Transformation in High-Temperature Processed Linepipe Steel P, Cambridge CB2 3QZ, U.K. Abstract: A relatively new class of linepipe steels with yield strength above 500 systems. The design concept for the steels takes advantage of the enhanced role which higher levels

Cambridge, University of

220

Effect of humic constituents on the transformation of chlorinated phenols and anilines in the presence of oxidoreductive enzymes or birnessite  

SciTech Connect (OSTI)

Chlorinated phenols and anilines are transformed and detoxified in soil through oxidative coupling reactions mediated by enzymes or metal oxides. The reactions may be influences by humic constituents, such as syringaldehyde or catechol, that originate from lignin decomposition and are also subject to oxidative coupling. In this study, the effect of humic constituents on xenobiotic transformation was evaluated in vitro based on the determination of unreacted chlorophenols and chloroanilines. In experiments with peroxidase, laccase, and birnessite, the transformation of most chlorophenols was considerably enhanced by the addition of syringaldehyde. Less enhancement was observed using 4-hydroxybenzoic acid, and the addition of catechol resulted in a reduction of most transformations. The opposite was observed in experiments with tyrosinase, in which case catechol caused considerable enhancement of chlorophenol transformation. The varying effect of catechol can be explained by different transformation mechanisms involving either o-quinone coupling or free radical coupling. Regardless of the agent used to mediate the reactions, chloroanilines seemed to undergo nucleophilic addition to quinone oligomers, which resulted from coupling of the humic constituents. Catechol, which readily forms quinones and quinone oligomers, was most efficient in enhancing these reactions.

Park, J.W.; Dec, J.; Bollag, J.M. (Pennsylvania State Univ., University Park, PA (United States)); Kim, J.E. (Kyngpook National Univ., Taegu (Korea, Republic of). Dept. of Agricultural Chemistry)

1999-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Accelerating the transformation of power systems  

E-Print Network [OSTI]

Accelerating the transformation of power systems Ancillary Services Peer Exchange with India- to-peer consultation. The 21st Century Power Partnership aims to accelerate the global transformation consultative support Accelerating the transformation of power systems NREL/FS-6A20-61811 · May 2014 15013

222

Gravity Transform for Input Conditioning in  

E-Print Network [OSTI]

Gravity Transform for Input Conditioning in Brain Machine Interfaces António R. C. Paiva, José C. Motivation 2. Methods i. Gravity Transform ii. Modeling and output sensitivity analysis 3. Data Analysis #12;3 Outline 1. Motivation 2. Methods i. Gravity Transform ii. Modeling and output sensitivity analysis 3. Data

Paiva, António R. C.

223

RECENTER -ADVERSITY INTO TRANSFORMATION Course Description  

E-Print Network [OSTI]

Center" delivers power tools and real time strategies for creating performance transformation no matter what and practical system for transforming your communication skills from the inside and outside. Use real timeRECENTER - ADVERSITY INTO TRANSFORMATION Course Description: Knowing how to use adversity

Coles, William A.

224

The TRANSFORMATION OF CONFLICTS AMONG ETHIOPIAN PASTORALISTS  

E-Print Network [OSTI]

The TRANSFORMATION OF CONFLICTS AMONG ETHIOPIAN PASTORALISTS: Ethnography of the Notion of Conflict This PhD thesis is concerned with studying the conceptualization, performance and transformation in their nature and have not yet achieved full transformation to peace. The research supports the notion

Richner, Heinz

225

Transforming and Refining Abstract Constraint Specifications  

E-Print Network [OSTI]

Transforming and Refining Abstract Constraint Specifications Alan M. Frisch1 , Brahim Hnich2 , Ian choose model transformations to reduce greatly the amount of effort that is required to solve a problem by systematic search. It is a consid- erable challenge to automate such transformations. A problem may be viewed

Walsh, Toby

226

LAPPED TRANSFORMS Ricardo L. de Queiroz  

E-Print Network [OSTI]

LAPPED TRANSFORMS Ricardo L. de Queiroz Advanced Color Imaging Xerox Corporation queiroz@wrc.xerox.com 0.1 Introduction The idea of a lapped transform (LT, for short) maintaining orthogonality and non with the blocking artifacts so common in traditional block transform coding of images. The idea was to extend

de Queiroz, Ricardo L.

227

Quantum arithmetic with the Quantum Fourier Transform  

E-Print Network [OSTI]

The Quantum Fourier Transform offers an interesting way to perform arithmetic operations on a quantum computer. We review existing Quantum Fourier Transform adders and multipliers and propose some modifications that extend their capabilities. Among the new circuits, we propose a quantum method to compute the weighted average of a series of inputs in the transform domain.

Lidia Ruiz-Perez; Juan Carlos Garcia-Escartin

2014-11-21T23:59:59.000Z

228

Non-Hermitian Hamiltonians and similarity transformations  

E-Print Network [OSTI]

We show that a straightforward similarity transformation between an Hermitian operator and a non-Hermitian one enables one to prove the results obtained by other authors by means of a gauge-like transformation. The similarity transformation also reveals the connection with pseudo-Hermiticity

Francisco M. Fernndez

2015-02-04T23:59:59.000Z

229

YANGMILLS THEORY AND THE SEGALBARGMANN TRANSFORM  

E-Print Network [OSTI]

YANG­MILLS THEORY AND THE SEGAL­BARGMANN TRANSFORM BRIAN C. HALL Abstract. Motivated by the results cylinder, with the goal of obtaining an appropriate Segal­Bargmann transform. Using a Gaussian mea­ sure a variant of the classical Segal­Bargmann transform. A simple but non­rigorous argument shows

230

Acoustic enhancement for photo detecting devices  

DOE Patents [OSTI]

Provided are improvements to photo detecting devices and methods for enhancing the sensitivity of photo detecting devices. A photo detecting device generates an electronic signal in response to a received light pulse. An electro-mechanical acoustic resonator, electrically coupled to the photo detecting device, damps the electronic signal and increases the signal noise ratio (SNR) of the electronic signal. Increased photo detector standoff distances and sensitivities will result.

Thundat, Thomas G; Senesac, Lawrence R; Van Neste, Charles W

2013-02-19T23:59:59.000Z

231

A Superconducting transformer system for high current cable testing  

E-Print Network [OSTI]

A Superconducting Transformer System for High Current Cablea Direct-Current (DC) superconducting transformer system forhigh current test of superconducting cables. The transformer

Godeke, A.

2010-01-01T23:59:59.000Z

232

Towards Sustainable Communities: Transitions and Transformations in Environmental Policy  

E-Print Network [OSTI]

Transformations in Environmental Policy Daniel A. MazmanianTransformations in Environmental Policy (2 ed). Cambridge,Transformation in Environmental Policy is the second edition

Ghosh, Kaustuv

2010-01-01T23:59:59.000Z

233

Cauchy transforms of measures viewed as some functionals of Fourier transforms  

E-Print Network [OSTI]

Cauchy transforms of measures viewed as some functionals of Fourier transforms Zbigniew J. Jurek Urbanik ABSTRACT. The Cauchy transform of a positive measure plays an impor- tant role in complex analysis and more recently in so-called free probability. We show here that the Cauchy transform restricted

Jurek, Zbigniew J.

234

Cauchy transforms of measures viewed as some functionals of Fourier transforms #  

E-Print Network [OSTI]

Cauchy transforms of measures viewed as some functionals of Fourier transforms # Zbigniew J. Jurek Urbanik ABSTRACT. The Cauchy transform of a positive measure plays an impor­ tant role in complex analysis and more recently in so­called free probability. We show here that the Cauchy transform restricted

Jurek, Zbigniew J.

235

Learning transformation rules from transformation examples: An approach based on Relational Concept Analysis  

E-Print Network [OSTI]

Learning transformation rules from transformation examples: An approach based on Relational Concept), model transformations are basic and primordial entities, thus easing their design and implementation is an important issue. A quite recently proposed way to create model transformations consists in deducing

Paris-Sud XI, Université de

236

Grid Transformation Workshop Results Grid Transformation Workshop Results 2 April 2012  

E-Print Network [OSTI]

Grid Transformation Workshop Results April 2012 #12;Grid Transformation Workshop Results 2 April 2012 Grid Transformation Workshop Results plications. We will explore the basics of data modeling Transformation Workshop: Advanced Reading Material Product ID 1024659. The material in this report builds upon

237

Computing Instantaneous Frequency by normalizing Hilbert Transform  

DOE Patents [OSTI]

This invention presents Normalized Amplitude Hilbert Transform (NAHT) and Normalized Hilbert Transform(NHT), both of which are new methods for computing Instantaneous Frequency. This method is designed specifically to circumvent the limitation set by the Bedorsian and Nuttal Theorems, and to provide a sharp local measure of error when the quadrature and the Hilbert Transform do not agree. Motivation for this method is that straightforward application of the Hilbert Transform followed by taking the derivative of the phase-angle as the Instantaneous Frequency (IF) leads to a common mistake made up to this date. In order to make the Hilbert Transform method work, the data has to obey certain restrictions.

Huang, Norden E.

2005-05-31T23:59:59.000Z

238

High flux solar energy transformation  

DOE Patents [OSTI]

Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes. 7 figures.

Winston, R.; Gleckman, P.L.; O'Gallagher, J.J.

1991-04-09T23:59:59.000Z

239

High flux solar energy transformation  

DOE Patents [OSTI]

Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes.

Winston, Roland (Chicago, IL); Gleckman, Philip L. (Chicago, IL); O'Gallagher, Joseph J. (Flossmoor, IL)

1991-04-09T23:59:59.000Z

240

Ultrafast Transformations in Superionic Nanocrystals  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014 EIAUltrafast Transformations in SuperionicUltrafast

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Market Transformation | Department of Energy  

Energy Savers [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 Office of Inspector General Office0-72.pdfGeorgeDoesn't HappenLow-CostManufacturingMarginalMarket Transformation Market

242

Transform Solar | 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 CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,LtdInformation Dixie Valley Geothermal AreaTraillGreenTransform

243

Likelihood transform: making optimization and parameter estimation easier  

E-Print Network [OSTI]

Parameterized optimization and parameter estimation is of great importance in almost every branch of modern science, technology and engineering. A practical issue in the problem is that when the parameter space is large and the available data is noisy, the geometry of the likelihood surface in the parameter space will be complicated. This makes searching and optimization algorithms computationally expensive, sometimes even beyond reach. In this paper, we define a likelihood transform which can make the structure of the likelihood surface much simpler, hence reducing the intrinsic complexity and easing optimization significantly. We demonstrate the properties of likelihood transform by apply it to a simplified gravitational wave chirp signal search. For the signal with an signal-to-noise ratio 20, likelihood transform has made a deterministic template-based search possible for the first time, which turns out to be 1000 times more efficient than an exhaustive grid- based search. The method in principle can be applied to other problems in other fields as the spirit of parameterized optimization and parameter estimation problem is the same.

Yan Wang

2014-02-25T23:59:59.000Z

244

Disformal transformation of cosmological perturbations  

E-Print Network [OSTI]

We investigate the gauge-invariant cosmological perturbations in the gravity and matter frames in the general scalar-tensor theory where two frames are related by the disformal transformation. The gravity and matter frames are the extensions of the Einstein and Jordan frames in the scalar-tensor theory where two frames are related by the conformal transformation, respectively. First, it is shown that the curvature perturbation in the comoving gauge to the scalar field is disformally invariant as well as conformally invariant, which gives the predictions from the cosmological model where the scalar field is responsible both for inflation and cosmological perturbations. Second, in case that the disformally coupled matter sector also contributes to curvature perturbations, we derive the evolution equations of the curvature perturbation in the uniform matter energy density gauge from the energy (non)conservation in the matter sector, which are independent of the choice of the gravity sector. While in the matter frame the curvature perturbation in the uniform matter energy density gauge is conserved on superhorizon scales for the vanishing nonadiabatic pressure, in the gravity frame it is not conserved even if the nonadiabatic pressure vanishes. The formula relating two frames gives the amplitude of the curvature perturbation in the matter frame, once it is evaluated in the gravity frame.

Masato Minamitsuji

2014-09-04T23:59:59.000Z

245

A Transformational View of Cartography W. R. Tobler  

E-Print Network [OSTI]

A Transformational View of Cartography W. R. Tobler ABSTRACT. Cartographic transformations aliases are between points, lines, and areas. Substantive transformations occur in map interpolation transformational grammars, as originally devised for linguistics.2, 4 A similar, though less ambitious, attempt

Clarke, Keith

246

Transformation induced plasticity assisted steels: stress or strain affected martensitic  

E-Print Network [OSTI]

Transformation induced plasticity assisted steels: stress or strain affected martensitic transformation? S. Chatterjee and H. K. D. H. Bhadeshia* Transformation induced plasticity (TRIP) assisted steels contain a small quantity of carbon enriched retained austenite, which transforms into martensite during

Cambridge, University of

247

RTU Comparison Calculator Enhancement Plan  

SciTech Connect (OSTI)

Over the past two years, Department of Energys Building Technologies Office (BTO) has been investigating ways to increase the operating efficiency of the packaged rooftop units (RTUs) in the field. First, by issuing a challenge to the RTU manufactures to increase the integrated energy efficiency ratio (IEER) by 60% over the existing ASHRAE 90.1-2010 standard. Second, by evaluating the performance of an advanced RTU controller that reduces the energy consumption by over 40%. BTO has previously also funded development of a RTU comparison calculator (RTUCC). RTUCC is a web-based tool that provides the user a way to compare energy and cost savings for two units with different efficiencies. However, the RTUCC currently cannot compare savings associated with either the RTU Challenge unit or the advanced RTU controls retrofit. Therefore, BTO has asked PNNL to enhance the tool so building owners can compare energy and savings associated with this new class of products. This document provides the details of the enhancements that are required to support estimating energy savings from use of RTU challenge units or advanced controls on existing RTUs.

Miller, James D.; Wang, Weimin; Katipamula, Srinivas

2014-03-31T23:59:59.000Z

248

NEMA Distribution Transformers, CCE Overview and Update presentation...  

Broader source: Energy.gov (indexed) [DOE]

Distribution Transformers, CCE Overview and Update presentation, dated 05242011 NEMA Distribution Transformers, CCE Overview and Update presentation, dated 05242011 This...

249

The Mineralogic Transformation of Ferrihydrite Induced by Heterogeneou...  

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

Transformation of Ferrihydrite Induced by Heterogeneous Reaction with Bioreduced Anthraquinone Disulfonate (AQDS The Mineralogic Transformation of Ferrihydrite Induced by...

250

Energy Technology Solutions: Public-Private Partnerships Transforming...  

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

Solutions: Public-Private Partnerships Transforming Industry, November 2010 Energy Technology Solutions: Public-Private Partnerships Transforming Industry, November 2010...

251

Credit Enhancement Program (Oklahoma)  

Broader source: Energy.gov [DOE]

The Credit Enhancement Program is a means by which the Oklahoma Finance Authority provides guarantees for small companies, manufacturing facilities and communities in need of funds for expansion...

252

GLOBAL STABILITY STUDY OF THE ULTRALOW ASPECT RATIO TOKAMAK,  

E-Print Network [OSTI]

generated with aspect ratios as low as 1.1. In this extreme limit the transition of the spheromak (qedge= 0] is similar to the spheromak [5]in its strong paramagnetism and magnetic helical pitch. As the aspect ratio

253

Ultra-short nacelles for low fan pressure ratio propulsors  

E-Print Network [OSTI]

This thesis addresses the uncharted inlet and nacelle design space for low pressure ratio fans for advanced aeroengines. A key feature in low fan pressure ratio (FPR) propulsors with short inlets and nacelles is the increased ...

Peters, Andreas, Ph. D. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

254

BUILDING EFFECTIVENESS COMMUNICATION RATIOS FOR IMPROVED BUILDING LIFE CYCLE MANAGEMENT  

E-Print Network [OSTI]

BUILDING EFFECTIVENESS COMMUNICATION RATIOS FOR IMPROVED BUILDING LIFE CYCLE MANAGEMENT Elmer building energy performance assessment frameworks, quantifying and categorising buildings post occupancy a performance-based strategy utilising building effectiveness communication ratios stored in Building

255

Shape transformations of toroidal vesicles  

E-Print Network [OSTI]

Morphologies of genus-1 and 2 toroidal vesicles are studied numerically by dynamically triangulated membrane models and experimentally by confocal laser microscopy. Our simulation results reproduce shape transformations observed in our experiments well. At large reduced volumes of the genus-1 vesicles, obtained vesicle shapes agree with the previous theoretical prediction, in which axisymmetric shapes are assumed: double-necked stomatocyte, discoidal toroid, and circular toroid. However, for small reduced volumes, it is revealed that a non-axisymmetric discoidal toroid and handled discocyte exist in thermal equilibrium in the parameter range, in which the previous theory predicts axisymmetric discoidal shapes. Polygonal toroidal vesicles and subsequent budding transitions are also found. The entropy caused by shape fluctuations slightly modifies the stability of the vesicle shapes.

Hiroshi Noguchi; Ai Sakashita; Masayuki Imai

2014-10-17T23:59:59.000Z

256

Quantum Energy Regression using Scattering Transforms  

E-Print Network [OSTI]

We present a novel approach to the regression of quantum mechanical energies based on a scattering transform of an intermediate electron density representation. A scattering transform is a deep convolution network computed with a cascade of multiscale wavelet transforms. It possesses appropriate invariant and stability properties for quantum energy regression. This new framework removes fundamental limitations of Coulomb matrix based energy regressions, and numerical experiments give state-of-the-art accuracy over planar molecules.

Hirn, Matthew; Mallat, Stephane

2015-01-01T23:59:59.000Z

257

Nonlinear Transformation Group of CAR Fermion Algebra  

E-Print Network [OSTI]

Based on our previous work on the recursive fermion system in the Cuntz algebra, it is shown that a nonlinear transformation group of the CAR fermion algebra is induced from a $U(2^p)$ action on the Cuntz algebra ${\\cal O}_{2^p}$ with an arbitrary positive integer $p$. In general, these nonlinear transformations are expressed in terms of finite polynomials in generators. Some Bogoliubov transformations are involved as special cases.

Mitsuo Abe; Katsunori Kawamura

2001-10-01T23:59:59.000Z

258

Displacements and Transformations in Caribbean Cultures  

E-Print Network [OSTI]

and Transformations in Caribbean Cultures. LIZABETHdefine a "global Caribbean" (p. 3) characterized bythe authors consider the Caribbean as a problematic more

Maurer, Bill

2010-01-01T23:59:59.000Z

259

agrobacterium tumefaciens-mediated transformation: Topics by...  

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

that allows to specify binary relations on graphs Drewes, Frank 51 Constructors transformers Computer Technologies and Information Sciences Websites Summary: Proc. AGTIVE'99,...

260

Transformers: The Levers and Gears of Electricity  

Broader source: Energy.gov [DOE]

This video is a great resource for teachers, demonstrating how transformers work. It includes experiments and demos that can be shared with students.

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

An index 2F2 hypergeometric transform  

E-Print Network [OSTI]

We construct a new one-parameter family of index hypergeometric transforms associated with the relativistic pseudoharmonic oscillator by using coherent states analysis.

Zouhair Mouayn

2011-05-12T23:59:59.000Z

262

On the positivity of Fourier transforms  

E-Print Network [OSTI]

Characterizing in a constructive way the set of real functions whose Fourier transforms are positive appears to be yet an open problem. Some sufficient conditions are known but they are far from being exhaustive. We propose two constructive sets of necessary conditions for positivity of the Fourier transforms and test their ability of constraining the positivity domain. One uses analytic continuation and Jensen inequalities and the other deals with Toeplitz determinants and the Bochner theorem. Applications are discussed, including the extension to the two-dimensional Fourier-Bessel transform and the problem of positive reciprocity, i.e. positive functions with positive transforms.

Bertrand G. Giraud; Robi Peschanski

2014-05-13T23:59:59.000Z

263

Effects of fuel type and equivalence ratios on the flickering of triple flames  

SciTech Connect (OSTI)

An experimental study has been conducted in axisymmetric, co-flowing triple flames with different equivalence ratios of the inner and outer reactant streams (2<{phi}{sub in}<3 and 0{<=}{phi}{sub out}<0.7). Different fuel combinations, like propane/propane, propane/methane or methane/methane in the inner and outer streams respectively, have been used in the experiments. The structures of the triple flames have been compared for the different fuel combinations and equivalence ratios. The conditions under which triple flames exhibit oscillation have been identified. During the oscillation, the non-premixed flame and the outer lean premixed flame flicker strongly, while the inner rich premixed flame remains more or less stable. The flickering frequency has been evaluated through image processing and fast Fourier transform (FFT) of the average pixel intensity of the image frames. It is observed that, for all the fuel combinations, the frequency decreases with the increase in the outer equivalence ratio, while it is relatively invariant with the change in the inner equivalence ratio. However, an increase in the inner equivalence ratio affects the structure of the flame by increasing the heights of the inner premixed flame and non-premixed flame and also enlarges the yellow soot-laden zone at the tip of the inner flame. A scaling analysis of the oscillating flames has been performed based on the measured parameters, which show a variation of Strouhal number (St) with Richardson number (Ri) as St {proportional_to} Ri{sup 0.5}. The fuel type is found to have no influence on this correlation. (author)

Sahu, K.B.; Kundu, A.; Ganguly, R.; Datta, A. [Department of Power Engineering, Jadavpur University, Salt Lake Campus, Kolkata 700098 (India)

2009-02-15T23:59:59.000Z

264

918 IEEE TRANSACTIONS ON AUDIO, SPEECH, AND LANGUAGE PROCESSING, VOL. 15, NO. 3, MARCH 2007 MAP Estimators for Speech Enhancement Under  

E-Print Network [OSTI]

Estimators for Speech Enhancement Under Normal and Rayleigh Inverse Gaussian Distributions Richard C for speech enhancement in the discrete Fourier transform (DFT) domain, where we consider a multidimensional) distribution, speech enhancement. I. INTRODUCTION THE recent increased use of mobile speech processing ap

265

126 IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, VOL. 7, NO. 2, MARCH 1999 Single Channel Speech Enhancement Based on  

E-Print Network [OSTI]

Speech Enhancement Based on Masking Properties of the Human Auditory System Nathalie Virag Abstract--This paper addresses the problem of single channel speech enhancement at very low signal-to-noise ratios (SNR as subjective listening tests, confirm that the enhanced speech is more pleasant to a human listener. Finally

Allen, Jont

266

Linear Transformations In this Chapter, we will define the notion of a linear transformation between  

E-Print Network [OSTI]

Chapter 6 Linear Transformations In this Chapter, we will define the notion of a linear transformation between two vector spaces V and W which are defined over the same field and prove the most basic transformations is equivalent to matrix theory. We will also study the geometric properties of linear

Carrell, Jim

267

Effects of nuclear absorption on the antiLambda/antiproton ratio in relativistic heavy ion collisions  

E-Print Network [OSTI]

An enhanced antiLambda/antiproton ratio in heavy-ion relative to p+p collisions has been proposed as one of the signatures for the Quark-Gluon Plasma (QGP) formation. A significantly large (antiLambda+antiSigma0+1.1*antiSigma-)/antiproton ratio of 3.5 has been observed in the mid-rapidity and low transverse momentum region in central Au+Au collisions at the nucleon-nucleon center-of-mass energy of 4.9 GeV at the Alternating Gradient Synchrotron (AGS). This is an order of magnitude larger than the values in peripheral Au+Au collisions and p+p collisions at the corresponding energy. By using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) transport model, we demonstrate that the observed large ratio can be explained by strong absorption of antiprotons (~99.9%) and antiLambdas (~99%) in dense nuclear matter created in central collisions. We find within the model that the initial antiLambda/antiproton ratio, mainly from string fragmentation, does not depend on the collision centrality, and is consistent with that observed in p+p collisions. This suggests that the observed large (antiLambda+antiSigma0+1.1*antiSigma-)/antiproton ratio at the AGS does not necessarily imply the formation of the QGP. We further study the excitation function of the ratio in UrQMD, which may help in the search and study of the QGP.

Fuqiang Wang; Marlene Nahrgang; Marcus Bleicher

2012-06-30T23:59:59.000Z

268

Enterprise transformation :lessons learned, pathways to success.  

SciTech Connect (OSTI)

In this report, we characterize the key themes of transformation and tie them together in a ''how to'' guide. The perspectives were synthesized from strategic management literature, case studies, and from interviews with key management personnel from private industry on their transformation experiences.

Slavin, Adam M.; Woodard, Joan Brune

2006-05-01T23:59:59.000Z

269

Transformation of structured documents Eila Kuikka  

E-Print Network [OSTI]

Transformation of structured documents Eila Kuikka Department of Computer Science, University Structure de nitions of documents have been used successfully for inputting and for- matting in text documents and studies possibilities to extend the use of structure de nitions to document transformations

Waterloo, University of

270

A landscape of bidirectional model transformations  

E-Print Network [OSTI]

A landscape of bidirectional model transformations Perdita Stevens Laboratory for Foundations the landscape of bidirectional model transformations as it appears to the author at the time of writing, autumn and maintenance more efficient by automating routine aspects of the process. For example, a com- mon scenario

Stevens, Perdita

271

Moving Ahead: From Transition to Transformation  

E-Print Network [OSTI]

political stability. This chapter briefly discusses the important elements of `management of transition' and components of `transformation' of the old state into a new nation. 9.2 Managing Transition It is crucially important to smoothly manage transition to achieve stability and democracy, and materialise transformation

Richner, Heinz

272

Morris-Shore transformation with unequal detunings  

E-Print Network [OSTI]

The aim of this paper is to analyze the MS transformation in the case of weak deviation of the condition for equal detunings, which in necessary for factorization towards set of two-state systems and set of decouple states. Some elements concerning the general solution of the MS transformation will be also discussed.

G. S. Vasilev; N. V. Vitanov

2014-02-23T23:59:59.000Z

273

Ratio of shear viscosity to entropy density in generalized theories of gravity  

SciTech Connect (OSTI)

Near the horizon of a black brane solution in anti-de Sitter space, the long-wavelength fluctuations of the metric exhibit hydrodynamic behavior. For Einstein's theory, the ratio of the shear viscosity of near-horizon metric fluctuations {eta} to the entropy per unit of transverse volume s is {eta}/s=1/4{pi}. We propose that, in generalized theories of gravity, this ratio is given by the ratio of two effective gravitational couplings and can be different than 1/4{pi}. Our proposal confirms that {eta}/s is equal to 1/4{pi} for any theory that can be transformed into Einstein's theory, such as F(R) gravity. Our proposal also implies that matter interactions--except those including explicit or implicit factors of the Riemann tensor--will not modify {eta}/s. The proposed formula reproduces, in a very simple manner, some recently found results for Gauss-Bonnet gravity. We also make a prediction for {eta}/s in Lovelock theories of any order or dimensionality.

Brustein, Ram; Medved, A. J. M. [Department of Physics, Ben-Gurion University, Beer-Sheva 84105 (Israel); Physics Department, University of Seoul, Seoul 130-743 (Korea, Republic of)

2009-01-15T23:59:59.000Z

274

Paralization and check pointing of GPU applications through program transformation  

SciTech Connect (OSTI)

GPUs have emerged as a powerful tool for accelerating general-purpose applications. The availability of programming languages that makes writing general-purpose applications for running on GPUs tractable have consolidated GPUs as an alternative for accelerating generalpurpose applications. Among the areas that have bene#12;ted from GPU acceleration are: signal and image processing, computational uid dynamics, quantum chemistry, and, in general, the High Performance Computing (HPC) Industry. In order to continue to exploit higher levels of parallelism with GPUs, multi-GPU systems are gaining popularity. In this context, single-GPU applications are parallelized for running in multi-GPU systems. Furthermore, multi-GPU systems help to solve the GPU memory limitation for applications with large application memory footprint. Parallelizing single-GPU applications has been approached by libraries that distribute the workload at runtime, however, they impose execution overhead and are not portable. On the other hand, on traditional CPU systems, parallelization has been approached through application transformation at pre-compile time, which enhances the application to distribute the workload at application level and does not have the issues of library-based approaches. Hence, a parallelization scheme for GPU systems based on application transformation is needed. Like any computing engine of today, reliability is also a concern in GPUs. GPUs are vulnerable to transient and permanent failures. Current checkpoint/restart techniques are not suitable for systems with GPUs. Checkpointing for GPU systems present new and interesting challenges, primarily due to the natural di#11;erences imposed by the hardware design, the memory subsystem architecture, the massive number of threads, and the limited amount of synchronization among threads. Therefore, a checkpoint/restart technique suitable for GPU systems is needed. The goal of this work is to exploit higher levels of parallelism and to develop support for application-level fault tolerance in applications using multiple GPUs. Our techniques reduce the burden of enhancing single-GPU applications to support these features. To achieve our goal, this work designs and implements a framework for enhancing a single-GPU OpenCL application through application transformation.

Solano-Quinde, Lizandro Dami#19; an [Ames Laboratory

2012-11-15T23:59:59.000Z

275

Control of transformer losses in Canada  

SciTech Connect (OSTI)

A new standard issued by the Canadian Standards Association, CSA C802, imposes maximum losses on transformers 10 MVA and below. Included are Distribution Transformers, small Power Transformers, and Dry Types. Implementation will start though the publishing in mid 1994 of the Gazette by Ontario`s Ministry of Energy. The Gazette will call for conformance to C802 after a lead time of one year to eighteen months, depending on the type of transformer. Other provincial energy ministries have been awaiting this development and are expected to follow suit shortly thereafter. The federal department, Natural Resources Canada, is also attuned to these actions and is expected to issue supportive legislation which will control movement of transformers across provincial and national borders.

Wiegand, D.A. [Canadian Standards Association, Toronto, Ontario (Canada)

1994-12-31T23:59:59.000Z

276

Arbitrary Transform Telescopes: The Generalization of Interferometry  

E-Print Network [OSTI]

The basic principle of astronomical interferometry is to derive the angular distribution of radiation in the sky from the Fourier transform of the electric field on the ground. What is so special about the Fourier transform? Nothing, it turns out. I consider the possibility of performing other transforms on the electric field with digital technology. The Fractional Fourier Transform (FrFT) is useful for interpreting observations of sources that are close to the interferometer (in the atmosphere for radio interferometers). Essentially, applying the FrFT focuses the array somewhere nearer than infinity. Combined with the other Linear Canonical Transforms, any homogeneous linear optical system with thin elements can be instantiated. The time variation of the electric field can also be decomposed into other bases besides the Fourier modes, which is especially useful for dispersed transients or quick pulses. I discuss why the Fourier basis is so commonly used, and suggest it is partly because most astrophysical so...

Lacki, Brian C

2015-01-01T23:59:59.000Z

277

High Power, Linear CMOS Power Amplifier for WLAN Applications /  

E-Print Network [OSTI]

components in silicon, achieving a high power enhancement ratio from a single stage LC matching network or single transformer

Afsahi, Ali

2013-01-01T23:59:59.000Z

278

Radiation detection method and system using the sequential probability ratio test  

DOE Patents [OSTI]

A method and system using the Sequential Probability Ratio Test to enhance the detection of an elevated level of radiation, by determining whether a set of observations are consistent with a specified model within a given bounds of statistical significance. In particular, the SPRT is used in the present invention to maximize the range of detection, by providing processing mechanisms for estimating the dynamic background radiation, adjusting the models to reflect the amount of background knowledge at the current point in time, analyzing the current sample using the models to determine statistical significance, and determining when the sample has returned to the expected background conditions.

Nelson, Karl E. (Livermore, CA); Valentine, John D. (Redwood City, CA); Beauchamp, Brock R. (San Ramon, CA)

2007-07-17T23:59:59.000Z

279

Characterization of diamond-like nanocomposite thin films grown by plasma enhanced chemical vapor deposition  

SciTech Connect (OSTI)

Diamond-like nanocomposite (DLN) thin films, comprising the networks of a-C:H and a-Si:O were deposited on pyrex glass or silicon substrate using gas precursors (e.g., hexamethyldisilane, hexamethyldisiloxane, hexamethyldisilazane, or their different combinations) mixed with argon gas, by plasma enhanced chemical vapor deposition technique. Surface morphology of DLN films was analyzed by atomic force microscopy. High-resolution transmission electron microscopic result shows that the films contain nanoparticles within the amorphous structure. Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and x-ray photoelectron spectroscopy (XPS) were used to determine the structural change within the DLN films. The hardness and friction coefficient of the films were measured by nanoindentation and scratch test techniques, respectively. FTIR and XPS studies show the presence of C-C, C-H, Si-C, and Si-H bonds in the a-C:H and a-Si:O networks. Using Raman spectroscopy, we also found that the hardness of the DLN films varies with the intensity ratio I{sub D}/I{sub G}. Finally, we observed that the DLN films has a better performance compared to DLC, when it comes to properties like high hardness, high modulus of elasticity, low surface roughness and low friction coefficient. These characteristics are the critical components in microelectromechanical systems (MEMS) and emerging nanoelectromechanical systems (NEMS).

Santra, T. S.; Liu, C. H. [Institute of Nanoengineering and Microsystems (NEMS), National Tsing Hua University, Hsinchu, Taiwan 30043 (China); Bhattacharyya, T. K. [Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur 721302, West Bengal (India); Patel, P. [Department of Electrical and Computer Engineering, University of Illinois at Urbana Champaign, Urbana, Illinois 61801 (United States); Barik, T. K. [School of Applied Sciences, Haldia Institute of Technology, Haldia 721657, Purba Medinipur, West Bengal (India)

2010-06-15T23:59:59.000Z

280

Technical Report Technologically Enhanced  

E-Print Network [OSTI]

.......................................................................................1-6 Geology and Distribution of Uranium................................................ ..........1Technical Report on Technologically Enhanced Naturally Occurring Radioactive Materials from Uranium of Mines and Geology, and William Chenoweth. EPA is especially appreciative of the comments provided

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Accretion of dust grains as a possible origin of metal-poor stars with low alpha/Fe ratios  

E-Print Network [OSTI]

The origin of low alpha/Fe ratios in some metal-poor stars, so called low-alpha stars, is discussed. It is found that most of low-alpha stars in the Galaxy are on the main-sequence. This strongly suggests that these stars suffered from external pollution. It is also found that the abundance ratios Zn/Fe of low-alpha stars both in the Galaxy and in dwarf spheroidal galaxies are lower than the average value of Galactic halo stars whereas damped Ly alpha absorbers have higher ratios. This implies that some low-alpha stars accreted matter depleted from gas onto dust grains. To explain the features in these low-alpha stars, we have proposed that metal-poor stars harboring planetary systems are the origin of these low-alpha stars. Stars engulfing a small fraction of planetesimals enhance the surface content of Fe to exhibit low alpha/Fe ratios on their surfaces while they are on the main-sequence, because dwarfs have shallow surface convection zones where the engulfed matter is mixed. After the stars leave the main-sequence, the surface convection zones become deeper to reduce the enhancement of Fe. Eventually, when the stars ascend to the tip of the red giant branch, they engulf giant planets to become low-alpha stars again as observed in dwarf spheroidal galaxies. We predict that low-alpha stars with low Mn/Fe ratios harbor planetary systems.

Toshikazu Shigeyama; Takuji Tsujimoto

2003-10-10T23:59:59.000Z

282

Enhanced metabolite generation  

DOE Patents [OSTI]

The present invention relates to the enhanced production of metabolites by a process whereby a carbon source is oxidized with a fermentative microbe in a compartment having a portal. An electron acceptor is added to the compartment to assist the microbe in the removal of excess electrons. The electron acceptor accepts electrons from the microbe after oxidation of the carbon source. Other transfers of electrons can take place to enhance the production of the metabolite, such as acids, biofuels or brewed beverages.

Chidambaram, Devicharan (Middle Island, NY)

2012-03-27T23:59:59.000Z

283

Ceramic membranes with enhanced thermal stability  

DOE Patents [OSTI]

A method of creating a ceramic membrane with enhanced thermal stability is disclosed. The method involves combining quantities of a first metal alkoxide with a second metal, the quantities selected to give a preselected metal ratio in the resultant membrane. A limited amount of water and acid is added to the combination and stirred until a colloidal suspension is formed. The colloid is dried to a gel, and the gel is fired at a temperature greater than approximately 400.degree. C. The porosity and surface area of ceramic membranes formed by this method are not adversely affected by this high temperature firing.

Anderson, Marc A. (Madison, WI); Xu, Qunyin (Plainsboro, NJ); Bischoff, Brian L. (Madison, WI)

1993-01-01T23:59:59.000Z

284

Transformations between symmetric sets of quantum states  

E-Print Network [OSTI]

We investigate probabilistic transformations of quantum states from a `source' set to a `target' set of states. Such transforms have many applications. They can be used for tasks which include state-dependent cloning or quantum state discrimination, and as interfaces between systems whose information encodings are not related by a unitary transform, such as continuous-variable systems and finite-dimensional systems. In a probabilistic transform, information may be lost or leaked, and we explain the concepts of leak and redundancy. Following this, we show how the analysis of probabilistic transforms significantly simplifies for symmetric source and target sets of states. In particular, we give a simple linear program which solves the task of finding optimal transforms, and a method of characterizing the introduced leak and redundancy in information-theoretic terms. Using the developed techniques, we analyse a class of transforms which convert coherent states with information encoded in their relative phase to symmetric qubit states. Each of these sets of states on their own appears in many well studied quantum information protocols. Finally, we suggest an asymptotic realization based on quantum scissors.

Vedran Dunjko; Erika Andersson

2012-06-22T23:59:59.000Z

285

aerosol ratio program: Topics by E-print Network  

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

contribute a major portion of atmospheric aerosol mass loading 5. The estimated global annual Liou, K. N. 2 Studying Clouds and Aerosols with Lidar Depolarization Ratio and...

286

Two-Stage Variable Compression Ratio (VCR) System to Increase...  

Broader source: Energy.gov (indexed) [DOE]

th , 2012 Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains DEER Conference 2012 D. Tomazic, H. Kleeberg, S. Bowyer, FEV Inc. J....

287

Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From...  

Open Energy Info (EERE)

boiling or by isotopic exchange at low waterrock ratios in new fractures. The mineralogy and apparent 18O enrichments of hydrothermal fracture-filling minerals are...

288

Transformations of $W$-Type Entangled States  

E-Print Network [OSTI]

The transformations of $W$-type entangled states by using local operations assisted with classical communication are investigated. For this purpose, a parametrization of the $W$-type states which remains invariant under local unitary transformations is proposed and a complete characterization of the local operations carried out by a single party is given. These are used for deriving the necessary and sufficient conditions for deterministic transformations. A convenient upper bound for the maximum probability of distillation of arbitrary target states is also found.

S. K?nta?; S. Turgut

2010-03-10T23:59:59.000Z

289

A Family of Circular Bargmann Transforms  

E-Print Network [OSTI]

When considering a charged particle evolving in the Poincar\\'e disk under influence of a uniform magnetic field with a strength proportional to +1, we construct for all hyperbolic Landau level \\epsilon^\\gamma_$m$ m = 4m(-m), m 2 Z+ \\[0, /2] a family of coherent states transforms labeled by (,m) and mapping isometrically square integrable functions on the unit circle with respect to the measure sin^\\gamma-2m (\\theta/2) d\\theta onto spaces of bound states of the particle. These transforms are called circular Bargmann transforms.

Zouhair Mouayn

2011-05-24T23:59:59.000Z

290

Pion Freeze-Out Time in Pb+Pb Collisions at 158 A GeV/c Studied via pi-/pi+ and K-/K+ Ratios  

E-Print Network [OSTI]

The effect of the final state Coulomb interaction on particles produced in Pb+Pb collisions at 158 A GeV/c has been investigated in the WA98 experiment through the study of the pi-/pi+ and K-/K+ ratios measured as a function of transverse mass. While the ratio for kaons shows no significant transverse mass dependence, the pi-/pi+ ratio is enhanced at small transverse mass values with an enhancement that increases with centrality. A silicon pad detector located near the target is used to estimate the contribution of hyperon decays to the pi-/pi+ ratio. The comparison of results with predictions of the RQMD model in which the Coulomb interaction has been incorporated allows to place constraints on the time of the pion freeze-out.

WA98 Collaboration

2006-07-16T23:59:59.000Z

291

Transformation of chlorinated phenols and anilines in the presence of humic acid  

SciTech Connect (OSTI)

Incubations of chlorinated phenols and anilines with oxidoreductive catalysts (peroxidase, laccase, tyrosinase, and birnessite) in the presence of humic acid led to oligomerization of the substrates or their binding to organic matter. The effect of humic acid on the overall transformation depended on the substrate, type of catalyst, and the concentration and source of humic acid. At low humic acid concentrations, the transformation of 4-chlorophenol (4-CP) was enhanced, but at higher concentrations of humic acid, no further enhancement occurred. The transformation of 4-chloroaniline (4-CA) was only slightly affected after the addition of humic acid. In experiments with {sup 14}C-labeled substrates, 4-CP was mainly bound to humic acid and formed few oligomers, whereas 4-CA was largely subject to oligomerization with less binding to humic acid. Binding and oligomerization of 4-CP did not change with increasing concentration of humic acid, but with 4-CA, binding increased and oligomerization decreased. It appears that nucleophilic binding of 4-CA depended largely on the availability of carbonyl and quinone groups in humic acid and, therefore, the distribution of the transformed substrate between oligomers and organic matter greatly depended on the source of humic acid.

Park, J.W.; Dec, J.; Kim, J.E.; Bollag, J.M.

2000-02-01T23:59:59.000Z

292

Phase space dynamics of triaxial collapse: II. Universal evolution of axis ratios  

E-Print Network [OSTI]

In paper I of this series, we examined triaxial collapse in terms of the dynamics of eigenvalues of three important tensors: the Hessian of the gravitational potential, the tensor of velocity derivatives and the deformation tensor. The first paper focussed on the joint gravity-velocity dynamics and here we focus on the deformation tensor, which is directly related to the axes' evolution. We examine the evolution of the minor to major and intermediate to major axes ratios ($s$ and $q$) and the triaxiality parameter $T$ as function of mass scale and redshift. We find that the ellipticity and prolateness increase with decreasing mass scale and decreasing redshift. These trends, while in agreement with previous analytic studies, contradict numerical simulations. Nevertheless, we find that a suitable transformation of $s$, motivated by the scaling used in recent analysis of the Millennium XXL simulations by Bonamigo {\\it et al} (2014), has a universal log-normal distribution function that matches their numerical r...

Nadkarni-Ghosh, Sharvari

2015-01-01T23:59:59.000Z

293

Future Directions In Program Transformations 1 New York University  

E-Print Network [OSTI]

for real time applications, design automation, operations research, genetic engineering, optimizingFuture Directions In Program Transformations 1 R. Paige New York University As the emphasis transformations has naturally gained in importance. This paper briefly surveys what transformational programming

Paige, Robert

294

A Transformation System for Lazy Functional Logic Programs?  

E-Print Network [OSTI]

over to the transformation process and the transformed programs. We illus- trate the power A Transformation System for Lazy Functional Logic Programs? Mar. gmoreno@info-ab.uclm.es Abstract. Needed narrowing is a complete operational principle

Vidal, Germán

295

A non-destructive transformer oil tester  

E-Print Network [OSTI]

A new non-destructive test of transformer oil dielectric strength is a promising technique to automate and make more reliable a diagnostic that presently involves intensive manual efforts. This thesis focuses some of the ...

Cargol, Timothy L. (Timothy Lawrence), 1976-

2000-01-01T23:59:59.000Z

296

Deforestation: Transforming programs to eliminate trees  

E-Print Network [OSTI]

Deforestation: Transforming programs to eliminate to eliminate inter* *mediate lists_and intermediate trees_called the Deforestation Algorithm. A form of fun. Treeless form and the Deforestation Algorithm are presented in three steps. * *The first step presents

Wadler, Philip

297

Lean transformation of a supply chain organization  

E-Print Network [OSTI]

There are two basic schools of thought regarding how to approach a Lean transformation. Either start with introducing Lean tools or start with driving a Lean cultural change. Academic researchers like Steve Spear (Harvard/MIT), ...

Walsh, Daniel Andres

2008-01-01T23:59:59.000Z

298

Study on transformation-based invisibility cloaks  

E-Print Network [OSTI]

The combination of the development of modern metamaterials, which are artificial materials whose constitutive parameters can be engineered to achieve special functions, and the coordinate transformation theory, has offered ...

Zhang, Baile

2009-01-01T23:59:59.000Z

299

Sustainability transformations in Olympic host cities  

E-Print Network [OSTI]

The Olympic Games represent an unparalleled fast-track urban development opportunity for Olympic host cities. Taking the premise that the transformational effect of the Olympics has a potential to drive long-term urban ...

Mokrushina, Ksenia

2012-01-01T23:59:59.000Z

300

Program Transformations in Weak Memory Models  

E-Print Network [OSTI]

We analyse the validity of common optimisations on multi-threaded programs in two memory modelsthe DRF guarantee and the Java Memory Model. Unlike in the single-threaded world, even simple program transformations, such ...

Sevcik, Jaroslav

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Abiotic and Biological Transformation of Tetraalkoxysilanes  

E-Print Network [OSTI]

. An aerobic microbial culture from the local wastewater treatment plant that could grow and mineralizeAbiotic and Biological Transformation of Tetraalkoxysilanes and Trichloroethene/ cis-1 compounds (tetra- alkoxysilanes) by abiotic hydrolysis and biological mineralization was investigated

Semprini, Lewis

302

IEA Workshop 59 Shape and Aspect Ratio Optimization for  

E-Print Network [OSTI]

IEA Workshop 59 Shape and Aspect Ratio Optimization for High Beta, Steady-State Tokamak SCOPE and aspect ratio is particularly important for achieving high beta and also for the optimization of edge optimization of high beta steady state tokamak including DEMO concept, stability and CD assessment

303

Superluminal transformations in complex Minkowski spaces  

SciTech Connect (OSTI)

We calculate the mixing of real and imaginary components of space and time under the influence of superluminal boots in the x direction. A unique mixing is determined for this superluminal Lorentz transformation when we consider the symmetry properties afforded by the inclusion of three temporal directions. Superluminal transformations in complex six-dimensional space exhibit unique tachyonic connections which have both remote and local space--time event connections.

Ramon, C.; Rauscher, E.A.

1980-08-01T23:59:59.000Z

304

C60 Secondary Ion Fourier Transform Ion Cyclotron Resonance Mass...  

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

C60 Secondary Ion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. C60 Secondary Ion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Abstract: Secondary...

305

High Throughput Operando Studies using Fourier Transform Infrared...  

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

Throughput Operando Studies using Fourier Transform Infrared Imaging and Raman Spectroscopy. High Throughput Operando Studies using Fourier Transform Infrared Imaging and Raman...

306

arsenical-induced malignant transformation: Topics by E-print...  

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

due to altered sialylation of cell surface Paris-Sud XI, Universit de 33 Monad Transformers as Monoid Transformers Mauro Jaskelioff Computer Technologies and Information...

307

Building America Whole-House Solutions for New Homes: Transformations...  

Broader source: Energy.gov (indexed) [DOE]

Transformations, Inc. Net Zero Energy Communities (Fact Sheet) Building America Whole-House Solutions for New Homes: Transformations, Inc. Net Zero Energy Communities (Fact Sheet)...

308

Vortex Hydro Energy Develops Transformational Technology to Harness...  

Energy Savers [EERE]

Vortex Hydro Energy Develops Transformational Technology to Harness Energy from Water Currents Vortex Hydro Energy Develops Transformational Technology to Harness Energy from Water...

309

Reversible integer-to-integer (ITI) wavelet transforms are studied in the context of image coding. Considered are matters such as transform frameworks, transform design techniques, the utility of transforms for image coding, and  

E-Print Network [OSTI]

, the utility of transforms for image coding, and numerous practical issues related to transforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii List of Figures

Adams, Michael D.

310

Energy Transformation in the U.S. Virgin Islands | Department...  

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

About Us Initiatives & Projects Energy Transition Initiative Energy Transformation in the U.S. Virgin Islands Energy Transformation in the U.S. Virgin Islands Click on the...

311

The Fuel Cell Mobile Light Project - A DOE Market Transformation...  

Broader source: Energy.gov (indexed) [DOE]

The Fuel Cell Mobile Light Project - A DOE Market Transformation Activity The Fuel Cell Mobile Light Project - A DOE Market Transformation Activity Presentation slides from the...

312

Project Profile: Transformational Approach to Reducing the Total...  

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

Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics Project Profile: Transformational Approach to Reducing the Total System Costs of...

313

Webinar: Creating a Green Infrastructure Plan to Transform Your...  

Broader source: Energy.gov (indexed) [DOE]

Webinar: Creating a Green Infrastructure Plan to Transform Your Community Webinar: Creating a Green Infrastructure Plan to Transform Your Community November 18, 2014 3:00PM to...

314

EPA Webcast - Creating a Green Infrastructure Plan to Transform...  

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

EPA Webcast - Creating a Green Infrastructure Plan to Transform Your Community EPA Webcast - Creating a Green Infrastructure Plan to Transform Your Community November 18, 2014...

315

Toward Sustainable Communities: Transition and Transformations in Environmental Policy  

E-Print Network [OSTI]

and Transformations in Environmental Policy By Daniel A.Transformations in Environmental Policy. Cambridge, MA: MITpaper). US$25.00 Environmental policy in the United States

Calloway, Michele

2001-01-01T23:59:59.000Z

316

SPEECH ENHANCEMENT FOR CROSSTALK INTERFERENCE  

E-Print Network [OSTI]

SPEECH ENHANCEMENT FOR CROSS­TALK INTERFERENCE by Levent M. Arslan and John H.L. Hansen Robust. Based on this noise esti­ mate, a new speech enhancement technique is proposed. The enhancement method EDICS Code: SPL.SA.1.5 Speech Enhancement submitted Jan. 19, 1996 to IEEE Signal Processing Letters

317

Prominence seismology using the period ratio of transverse thread oscillations  

E-Print Network [OSTI]

The ratio of the period of the fundamental mode to that of the first overtone of kink oscillations, from here on the "period ratio", is a seismology tool that can be used to infer information about the spatial variation of density along solar magnetic flux tubes. The period ratio is 2 in longitudinally homogeneous thin tubes, but it differs from 2 due to longitudinal inhomogeneity. In this paper we investigate the period ratio in longitudinally inhomogeneous prominence threads and explore its implications for prominence seismology. We numerically solve the two-dimensional eigenvalue problem of kink oscillations in a model of a prominence thread. We take into account three nonuniform density profiles along the thread. In agreement with previous works that used simple piecewise constant density profiles, we find that the period ratio is larger than 2 in prominence threads. When the ratio of the central density to that at the footpoints is fixed, the period ratio depends strongly on the form of the density profi...

Soler, R; Ballester, J L

2015-01-01T23:59:59.000Z

318

Enhancement factors for resuspended aerosol radioactivity: Effects of topsoil disturbance  

SciTech Connect (OSTI)

The enhancement factor for airborne radionuclides resuspended by wind is defined as the ratio of the activity density (Bq g{sup {minus}1}) in the aerosol to the activity density in the underlying surface of contaminated soil. Enhancement factors are useful for assessment of worst-case exposure scenarios and transport conditions, and are one of the criteria for setting environmental standards for radioactivity in soil. This paper presents results of experimental studies where resuspension of {sup 239}Pu was measured when air concentrations were equilibrated to the soil surface. Enhancement factors were observed for several types of man-made disturbances (bulldozer-blading, soil raking, vacuum-cleaning) and natural disturbances (springtime thaw, soil-drying, wildfire). For some cases, enhancement factors are compared over range of geographical locations (Bikini Atoll, California, Nevada, and South Carolina). The particle-size distributions of aerosol activity are compared to particle-size distributions of the underlying soil.

Shinn, J.H.

1991-11-01T23:59:59.000Z

319

THE HDO/H{sub 2}O RATIO IN GAS IN THE INNER REGIONS OF A LOW-MASS PROTOSTAR  

SciTech Connect (OSTI)

The HDO/H{sub 2}O abundance ratio is thought to be a key diagnostic for the evolution of water during the star and planet formation process and thus for its origin on Earth. We here present millimeter-wavelength high angular resolution observations of the deeply embedded protostar NGC 1333-IRAS4B from the Submillimeter Array targeting the 3{sub 12}-2{sub 21} transition of HDO at 225.6 GHz (E{sub u} = 170 K). We do not (or only very tentatively) detect the HDO line toward the central protostar, contrasting the previous prominent detection of a line from another water isotopologue, H{sup 18}{sub 2}O, with similar excitation properties using the IRAM Plateau de Bure Interferometer. The non-detection of the HDO line provides a direct, model-independent, upper limit to the HDO/H{sub 2}O abundance ratio of 6 x 10{sup -4} (3{sigma}) in the warm gas associated with the central protostar. This upper limit suggests that the HDO/H{sub 2}O abundance ratio is not significantly enhanced in the inner {approx}50 AU around the protostar relative to what is seen in comets and Earth's oceans and does not support previous suggestions of a generally enhanced HDO/H{sub 2}O ratio in these systems.

Joergensen, Jes K. [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Oester Voldgade 5-7, DK-1350 Copenhagen K. (Denmark); Van Dishoeck, Ewine F., E-mail: jes@snm.ku.d, E-mail: ewine@strw.leidenuniv.n [Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA Leiden (Netherlands)

2010-12-20T23:59:59.000Z

320

The Mineralogic Transformation of Ferrihydrite Induced by Heterogeneous Reaction with Bioreduced Anthraquinone Disulfonate (AQDS) and the Role of Phosphate  

SciTech Connect (OSTI)

Anthraquinone-2-6-disulfonate (AQDS) enhances electron donor utilization and mineral product crystallization in studies of Fe(III) oxide reductive mineralization by metal reducing bacteria (MRB) through heterogeneous redox reaction. In spite of the strong effect of AQDS in these systems, little information exits on its direct role in reductive mineralization. To provide such insights, bioreduced AQDS (AH2DS; dihydro-anthraquinone) was reacted with a 2-line, Si-substituted ferrihydrite under anoxic conditions at neutral pH in PIPES buffer. Phosphate (P) and bicarbonate (C); common adsorptive oxyanions and media/buffer components known to effect ferrihydrite mineralization; and Fe(II)aq (as a catalytic mineralization agent) were used in comparative experiments. Heterogeneous AH2DS oxidation coupled with Fe(III) reduction occurred within 0.13-1 day, with mineralogic transformation occurring thereafter. The product suite included lepidocrocite, goethite, and/or magnetite, with proportions varing with reductant:oxidant ratio (r:o) and the presence of P or C. Lepidocrocite was the primary product at low r:o in the absence of P or C, with evidence for multiple formation pathways. P inhibited reductive recrystallization, while C promoted goethite formation. Stoichiometric magnetite was the sole product at higher r:o in the absence and presence of P. Lepidocrocite was the primary mineralization product in the Fe(II)aq system, with magnetite observed at near equal amounts when Fe(II) was high [Fe(II)/Fe(III)]=0.5 and P was absent. P had a greater effect on reductive mineralization in the Fe(II)aq system, while AQDS was more effective than Fe(II)aq in promoting magnetite formation. The direct AH2DS-driven reductive reaction pathway produced mineral products that were different from AH2DS-ferrihydite-MRB systems, particularly in presence of P.

Zachara, John M.; Kukkadapu, Ravi K.; Peretyazhko, Tetyana; Bowden, Mark E.; Wang, Chong M.; Kennedy, David W.; Moore, Dean A.; Arey, Bruce W.

2011-10-12T23:59:59.000Z

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We encourage you to perform a real-time search of NLEBeta
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321

Rapid Replication of High Aspect Ratio Molds for UV Embossing  

E-Print Network [OSTI]

This paper describes a promising fabrication technique for rapid replication of high aspect ratio microstructured molds for UV embossing. The process involves casting silicone rubber on a microstructured master, replicating ...

Yan, Yehai

322

The Ne/O abundance ratio in the quiet Sun  

E-Print Network [OSTI]

Aims: To determine the neon-to-oxygen abundance in the quiet Sun, a proxy for the photospheric abundance ratio. Method: An emission measure method applied to extreme ultraviolet emission lines of Ne IV-VI and O III-V ions observed by the Coronal Diagnostic Spectrometer on the SOHO satellite. Results: The average Ne/O abundance ratio in supergranule cell centre regions is 0.18 +/- 0.05, while in supergranule network regions is 0.16 +/- 0.04. A photospheric Ne/O ratio of 0.17 +/- 0.05 is suggested, in good agreement with the most recent compilation of solar photospheric abundances, but discrepant with a recent Ne/O ratio derived from stellar X-ray spectra and revised neon abundances suggested from solar interior models.

P. R. Young

2005-10-10T23:59:59.000Z

323

Chloride-Magnesium Ratio of Shallow Groundwaters as a Regional...  

Open Energy Info (EERE)

Chloride-Magnesium Ratio of Shallow Groundwaters as a Regional Geothermal Indicator in Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

324

aspect ratio silicon: Topics by E-print Network  

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

silicon-nitride hard-mask for high aspect-ratio silicon fins V. Jovanovi, S, Zagreb, Croatia Abstract - A method for using hard-masks to achieve sub- 100 nm patterning of...

325

Separated Response Function Ratios in Exclusive, Forward ?[superscript ] Electroproduction  

E-Print Network [OSTI]

The study of exclusive ?[superscript ] electroproduction on the nucleon, including separation of the various structure functions, is of interest for a number of reasons. The ratio R[subscript L] = ?[?? over L]/?[?+ over ...

Huber, G.?M.

326

Interpretation of the atmospheric muon charge ratio in MINOS  

E-Print Network [OSTI]

MINOS is the first large magnetic detector deep underground and is the first to measure the muon charge ratio with high statistics in the region near 1 TeV.\\cite{bib:adamson} An approximate formula for the muon charge ratio can be expressed in terms of $\\epsilon_\\pi$ = 115 GeV, $\\epsilon_K$ = 850 GeV and $\\ec$. The implications for K production in the atmosphere will be discussed.

Philip Schreiner; Maury Goodman

2007-06-04T23:59:59.000Z

327

The E2/M1 ratio in {Delta} photoproduction  

SciTech Connect (OSTI)

New high-precision measurements of p({rvec {gamma}}, {pi}) and p({rvec {gamma}}, {gamma}) cross sections and beam asymmetries have been combined with other polarization ratios in a simultaneous analysis of both reactions. The E2/M1 mixing ratio for the n {r_arrow} {Delta} transition extracted from this analysis is EMR = {minus}3.0% {+-} 0.3 (stat+sys) {+-} 0.2 (model).

Hoblit, S. [Brookhaven National Lab., Upton, NY (United States). Physics Dept.]|[Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics; Blanpied, G. [Univ. of South Carolina, Columbia, SC (United States). Dept. of Physics; Blecher, M. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Physics Dept.] [and others; LEGS Collaboration

1997-10-01T23:59:59.000Z

328

Transform-Space View: Performing Spatial Join in the Transform Space  

E-Print Network [OSTI]

Transform-Space View: Performing Spatial Join in the Transform Space Using Original-Space Indexes that satisfy a given spatial relationship. In spatial joins using indexes, original-space indexes such as the R-tree are widely used. An original-space index is the one that indexes objects as represented in the original space

Whang, Kyu-Young

329

Seismic imaging with the generalized Radon transform: A curvelet transform perspective  

E-Print Network [OSTI]

Seismic imaging with the generalized Radon transform: A curvelet transform perspective M V de Hoop1@purdue.edu Abstract. A key challenge in the seismic imaging of reflectors using surface reflection data. Introduction 1.1. Seismic Imaging with Arrays ­ Beyond Current Capabilities Much research in modern

Smith, Hart F.

330

Li?0? in Li-0? batteries : catalytic enhancement of electrochemical oxidation and thermophysical transformations  

E-Print Network [OSTI]

Electrification of transportation in the United States is of importance in reducing dependence on foreign oil and curtailing global warming. However, optimal market penetration of electric vehicles is confronted with the ...

Yao, Koffi Pierre (Koffi Pierre Claver)

2013-01-01T23:59:59.000Z

331

Kernel Maximum Entropy Data Transformation and an Enhanced Spectral Clustering Algorithm  

E-Print Network [OSTI]

Jensen,R. Eltoft,T. Girolami,M. Erdogmus,D. Twentieth Annual Conference on Neural Information Processing Systems - NIPS 2006 MIT Press

Jensen, R.; Eltoft, T.; Girolami, M.

332

Refactoring Composite to Visitor and Inverse Transformation in Java  

E-Print Network [OSTI]

Refactoring Composite to Visitor and Inverse Transformation in Java Akram Ajouli1 & Julien Cohen2 1, EMN) We describe how to use refactoring tools to transform a Java program conforming to the Composite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 CompositeVisitor Transformation Scheme 7 3.1 CompositeVisitor Transformation

Paris-Sud XI, Université de

333

Refactoring Composite to Visitor and Inverse Transformation in Java  

E-Print Network [OSTI]

Refactoring Composite to Visitor and Inverse Transformation in Java Akram Ajouli1 & Julien Cohen2 1, EMN) We describe how to use refactoring tools to transform a Java program conforming to the Composite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 CompositeVisitor Transformation Scheme 7 3.1 CompositeVisitor Transformation

Paris-Sud XI, Université de

334

Transformative Learning Purple Paper Truman State University Summer 2011  

E-Print Network [OSTI]

Transformative Learning ­ Purple Paper Truman State University ­ Summer 2011 The 2008. The Transformative Learning Taskforce has prepared this "Purple Paper" ­ a summary of our current understanding to transformative learning. Transformative Learning: The combination of these components and supportive

Gering, Jon C.

335

Particle Swarm Optimization of High-frequency Transformer  

E-Print Network [OSTI]

Particle Swarm Optimization of High-frequency Transformer Hengsi Qin, Jonathan W. Kimball, Ganesh K of Science and Technology, Rolla, MO 65409-0040 USA Abstract--A high frequency transformer is a critical transformer. Operation of a DAB converter requires its transformer to have a specific amount of winding

Kimball, Jonathan W.

336

Transformation of Meta-Information by Abstract Co-Interpretation  

E-Print Network [OSTI]

Transformation of Meta-Information by Abstract Co-Interpretation Raimund Kirner and Peter Puschner based on abstract interpretation to transform meta-information in parallel with the transformation. The construction of a correct transformation function for the meta-information can be quite complicated in case

337

Transformations between Composite and Visitor implementations in Java  

E-Print Network [OSTI]

Transformations between Composite and Visitor implementations in Java Akram Ajouli ASCOLA (EMN be chained to perform complex structure transformations. This is useful for recovering the initial a refactoring-based round- trip transformation between these two structures and we study how that transformation

Paris-Sud XI, Université de

338

On Transforming Spectral Peaks in Voice Conversion Elizabeth Godoy 1  

E-Print Network [OSTI]

On Transforming Spectral Peaks in Voice Conversion Elizabeth Godoy 1 , Olivier Rosec1 , Thierry.chonavel@telecom-bretagne.eu Abstract This paper explores the benefits of transforming spectral peaks in voice conversion. First, in examining classic GMM- based transformation with cepstral coefficients, we show that the lack of transformed

Paris-Sud XI, Université de

339

The $?$-deformed Segal-Bargmann transform is a Hall type transform  

E-Print Network [OSTI]

We present an explanation of how the $\\mu$-deformed Segal-Bargmann spaces, that are studied in various articles of the author in collaboration with Angulo, Echevarria and Pita, can be viewed as deserving their name, that is, how they should be considered as a part of Segal-Bargmann analysis. This explanation relates the $\\mu$-deformed Segal-Bargmann transforms to the generalized Segal-Bargmann transforms introduced by B. Hall using heat kernel analysis. All the versions of the $\\mu$-deformed Segal-Bargmann transform can be understood as Hall type transforms. In particular, we define a $\\mu$-deformation of Hall's "Version C" generalized Segal-Bargmann transform which is then shown to be a $\\mu$-deformed convolution with a $\\mu$-deformed heat kernel followed by analytic continuation. Our results are generalizations and analogues of the results of Hall.

Stephen Bruce Sontz

2009-07-13T23:59:59.000Z

340

Automatic transformations in the inference process  

SciTech Connect (OSTI)

A technique for incorporating automatic transformations into processes such as the application of inference rules, subsumption, and demodulation provides a mechanism for improving search strategies for theorem proving problems arising from the field of program verification. The incorporation of automatic transformations into the inference process can alter the search space for a given problem, and is particularly useful for problems having broad rather than deep proofs. The technique can also be used to permit the generation of inferences that might otherwise be blocked and to build some commutativity or associativity into the unification process. Appropriate choice of transformations, and new literal clashing and unification algorithms for applying them, showed significant improvement on several real problems according to several distinct criteria. 22 references, 1 figure.

Veroff, R. L.

1980-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

HERCULES: A Pattern Driven Code Transformation System  

SciTech Connect (OSTI)

New parallel computers are emerging, but developing efficient scientific code for them remains difficult. A scientist must manage not only the science-domain complexity but also the performance-optimization complexity. HERCULES is a code transformation system designed to help the scientist to separate the two concerns, which improves code maintenance, and facilitates performance optimization. The system combines three technologies, code patterns, transformation scripts and compiler plugins, to provide the scientist with an environment to quickly implement code transformations that suit his needs. Unlike existing code optimization tools, HERCULES is unique in its focus on user-level accessibility. In this paper we discuss the design, implementation and an initial evaluation of HERCULES.

Kartsaklis, Christos [ORNL; Hernandez, Oscar R [ORNL; Hsu, Chung-Hsing [ORNL; Ilsche, Thomas [Technische Universitat Dresden; Joubert, Wayne [ORNL; Graham, Richard L [ORNL

2012-01-01T23:59:59.000Z

342

Phase Transformation in Cast Superaustenitic Stainless Steels  

SciTech Connect (OSTI)

Superaustenitic stainless steels constitute a group of Fe-based alloys that are compositionally balanced to have a purely austenitic matrix and exhibit favorable pitting and crevice corrosion resistant properties and mechanical strength. However, intermetallic precipitates such as sigma and Laves can form during casting or exposure to high-temperature processing, which degrade the corrosion and mechanical properties of the material. The goal of this study was to accurately characterize the solid-solid phase transformations seen in cast superaustenitic stainless steels. Heat treatments were performed to understand the time and temperature ranges for intermetallic phase formations in alloys CN3MN and CK3MCuN. Microstructures were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy and wavelength dispersive spectroscopy (EDS, WDS). The equilibrium microstructures, composed primarily of sigma and Laves within purely austenitic matrices, showed slow transformation kinetics. Factors that determine the extent of transformation, including diffusion, nucleation, and growth, are discussed.

Nathaniel Steven Lee Phillips

2006-12-12T23:59:59.000Z

343

Maps for Lorentz transformations of spin  

E-Print Network [OSTI]

Lorentz transformations of spin density matrices for a particle with positive mass and spin 1/2 are described by maps of the kind used in open quantum dynamics. They show how the Lorentz transformations of the spin depend on the momentum. Since the spin and momentum generally are entangled, the maps generally are not completely positive and act in limited domains. States with two momentum values are considered, so the maps are for the spin qubit entangled with the qubit made from the two momentum values, and results from the open quantum dynamics of two coupled qubits can be applied. Inverse maps are used to show that every Lorentz transformation completely removes the spin polarization, and so completely removes the information, from a number of spin density matrices. The size of the spin polarization that is removed is calculated for particular cases.

Thomas F. Jordan; Anil Shaji; E. C. G. Sudarshan

2005-11-08T23:59:59.000Z

344

Primordial Gravitational Waves Enhancement  

E-Print Network [OSTI]

We reconsider the enhancement of primordial gravitational waves that arises from a quantum gravitational model of inflation. A distinctive feature of this model is that the end of inflation witnesses a brief phase during which the Hubble parameter oscillates in sign, changing the usual Hubble friction to anti-friction. An earlier analysis of this model was based on numerically evolving the graviton mode functions after guessing their initial conditions near the end of inflation. The current study is based on an equation which directly evolves the normalized square of the magnitude. We are also able to make a very reliable estimate for the initial condition using a rapidly converging expansion for the sub-horizon regime. Results are obtained for the energy density per logarithmic wave number as a fraction of the critical density. These results exhibit how the enhanced signal depends upon the number of oscillatory periods; they also show the resonant effects associated with particular wave numbers.

Maria G. Romania; N. C. Tsamis; R. P. Woodard

2011-08-08T23:59:59.000Z

345

Enhanced coalbed methane recovery  

SciTech Connect (OSTI)

The recovery of coalbed methane can be enhanced by injecting CO{sub 2} in the coal seam at supercritical conditions. Through an in situ adsorption/desorption process the displaced methane is produced and the adsorbed CO{sub 2} is permanently stored. This is called enhanced coalbed methane recovery (ECBM) and it is a technique under investigation as a possible approach to the geological storage of CO{sub 2} in a carbon dioxide capture and storage system. This work reviews the state of the art on fundamental and practical aspects of the technology and summarizes the results of ECBM field tests. These prove the feasibility of ECBM recovery and highlight substantial opportunities for interdisciplinary research at the interface between earth sciences and chemical engineering.

Mazzotti, M.; Pini, R.; Storti, G. [ETH, Zurich (Switzerland). Inst. of Process Engineering

2009-01-15T23:59:59.000Z

346

Applications of a fast, continuous wavelet transform  

SciTech Connect (OSTI)

A fast, continuous, wavelet transform, based on Shannon`s sampling theorem in frequency space, has been developed for use with continuous mother wavelets and sampled data sets. The method differs from the usual discrete-wavelet approach and the continuous-wavelet transform in that, here, the wavelet is sampled in the frequency domain. Since Shannon`s sampling theorem lets us view the Fourier transform of the data set as a continuous function in frequency space, the continuous nature of the functions is kept up to the point of sampling the scale-translation lattice, so the scale-translation grid used to represent the wavelet transform is independent of the time- domain sampling of the signal under analysis. Computational cost and nonorthogonality aside, the inherent flexibility and shift invariance of the frequency-space wavelets has advantages. The method has been applied to forensic audio reconstruction speaker recognition/identification, and the detection of micromotions of heavy vehicles associated with ballistocardiac impulses originating from occupants` heart beats. Audio reconstruction is aided by selection of desired regions in the 2-D representation of the magnitude of the transformed signal. The inverse transform is applied to ridges and selected regions to reconstruct areas of interest, unencumbered by noise interference lying outside these regions. To separate micromotions imparted to a mass-spring system (e.g., a vehicle) by an occupants beating heart from gross mechanical motions due to wind and traffic vibrations, a continuous frequency-space wavelet, modeled on the frequency content of a canonical ballistocardiogram, was used to analyze time series taken from geophone measurements of vehicle micromotions. By using a family of mother wavelets, such as a set of Gaussian derivatives of various orders, features such as the glottal closing rate and word and phrase segmentation may be extracted from voice data.

Dress, W.B.

1997-02-01T23:59:59.000Z

347

Lignite Fuel Enhancement  

SciTech Connect (OSTI)

This 6th quarterly Technical Progress Report for the Lignite Fuel Enhancement Project summarizes activities from October 1st through December 31st of 2005. It also summarizes the subsequent purchasing activity and dryer/process construction. Hypothesis remains the same. We will be able to dry lignite an increment to benefit the performance of and reduce emissions from a coal burning electric power generating station.

Charles Bullinger

2006-02-03T23:59:59.000Z

348

Enhanced heat transfer surface for cast-in-bump-covered cooling surfaces and methods of enhancing heat transfer  

DOE Patents [OSTI]

An annular turbine shroud separates a hot gas path from a cooling plenum containing a cooling medium. Bumps are cast in the surface on the cooling side of the shroud. A surface coating overlies the cooling side surface of the shroud, including the bumps, and contains cooling enhancement material. The surface area ratio of the cooling side of the shroud with the bumps and coating is in excess of a surface area ratio of the cooling side surface with bumps without the coating to afford increased heat transfer across the element relative to the heat transfer across the element without the coating.

Chiu, Rong-Shi Paul (Glenmont, NY); Hasz, Wayne Charles (Pownal, VT); Johnson, Robert Alan (Simpsonville, SC); Lee, Ching-Pang (Cincinnati, OH); Abuaf, Nesim (Lincoln City, OR)

2002-01-01T23:59:59.000Z

349

Nuclear modification factor of nonphotonic electrons in heavy-ion collisions, and the heavy-flavor baryon-to-meson ratio  

E-Print Network [OSTI]

The nuclear modification factor R(AA) of nonphotonic electrons in Au + Au collisions at root(S)NN = 200 GeV is studied by considering the decays of heavy-flavor hadrons produced in a quark coalescence model. Although an enhanced Lambda(c)/D(0) ratio...

Oh, Yongseok; Ko, Che Ming.

2009-01-01T23:59:59.000Z

350

Noether's Theorem Under the Legendre Transform  

E-Print Network [OSTI]

In this paper we demonstrate how the Legendre transform connects the statements of Noether's theorem in Hamiltonian and Lagrangian mechanics. We give precise definitions of symmetries and conserved quantities in both the Hamiltonian and Lagrangian frameworks and discuss why these notions in the Hamiltonian framework are somewhat less rigid. We explore conditions which, when put on these definitions, allow the Legendre transform to set up a one-to-one correspondence between them. We also discuss how to preserve this correspondence when the definitions of symmetries and conserved quantities are less restrictive.

Jonathan Herman

2014-09-29T23:59:59.000Z

351

Structural transformation of nickel hydroxide films during anodic oxidation  

SciTech Connect (OSTI)

The transformation of anodically formed nickel hydroxide/oxy-hydroxide electrodes has been investigated. A mechanism is proposed for the anodic oxidation reaction, in which the reaction interface between the reduced and oxidized phases of the electrode evolves in a nodular topography that leads to inefficient utilization of the active electrode material. In the proposed nodular transformation model for the anodic oxidation reaction, nickel hydroxide is oxidized to nickel oxy-hydroxide in the region near the metal substrate. Since the nickel oxy-hydroxide is considerably more conductive than the surrounding nickel hydroxide, as further oxidation occurs, nodular features grow rapidly to the film/electrolyte interface. Upon emerging at the electrolyte interface, the reaction boundary between the nickel hydroxide and oxy-hydroxide phases spreads laterally across the film/electrolyte interface, creating an overlayer of nickel oxy-hydroxide and trapping uncharged regions of nickel hydroxide within the film. The nickel oxy-hydroxide overlayer surface facilitates the oxygen evolution side reaction. Scanning tunneling microscopy of the electrode in its charged state revealed evidence of 80 {endash} 100 Angstrom nickel oxy-hydroxide nodules in the nickel hydroxide film. In situ spectroscopic ellipsometer measurements of films held at various constant potentials agree quantitatively with optical models appropriate to the nodular growth and subsequent overgrowth of the nickel oxy-hydroxide phase. A two-dimensional, numerical finite difference model was developed to simulate the current distribution along the phase boundary between the charged and uncharged material. The model was used to explore the effects of the physical parameters that govern the electrode behavior. The ratio of the conductivities of the nickel hydroxide and oxy-hydroxide phases was found to be the dominant parameter in the system.

Crocker, R.W.; Muller, R.H.

1992-05-01T23:59:59.000Z

352

Automotive Component Product Development Enhancement  

E-Print Network [OSTI]

Automotive Component Product Development Enhancement Through Multi-Attribute System Design Engineering Systems Division #12;Automotive Component Product Development Enhancement Through Multi of Science in Engineering and Management February 2005 ABSTRACT Automotive industry is facing a tough period

353

MARQUETTE UNIVERSITY Speech Signal Enhancement  

E-Print Network [OSTI]

MARQUETTE UNIVERSITY Speech Signal Enhancement Using A Microphone Array A THESIS SUBMITTED Reserved #12;iii Preface This thesis describes the design and implementation of a speech enhancement system that uses microphone array beamforming and speech enhancement algorithms applied to a speech signal

Johnson, Michael T.

354

HTS Power Transformers Presented to the  

E-Print Network [OSTI]

1 HTS Power Transformers Presented to the 2004 DOE Peer Review Committee For the WES flexibility. Allows operation from 20 K to 77 K permitting full system optimization. Best available conductor/SP/EE/ORNL Team By S.W. Schwenterly E.F. Pleva D.W. Hazelton Oak Ridge Waukesha SuperPower, Inc. National

355

Transformation texture of allotriomorphic ferrite in steel  

E-Print Network [OSTI]

Transformation texture of allotriomorphic ferrite in steel D. W. Kim1 , R. S. Qin1 and H. K. D. H into that of the product is mathematically defined. This is not the case when the ferrite forms by a reconstructive mechanism. The allotriomorphic ferrite nucleates heterogeneously at austenite grain boundaries, and although

Cambridge, University of

356

IMAGE COMPRESSION USING SPLINE BASED WAVELET TRANSFORMS  

E-Print Network [OSTI]

known codec. Keywords: Sample, edited book Introduction The three fundamental building blocks with one well known codec. 0.1. Wavelet Based Image Coders Wavelet transforms provide very good energy of partitioning, aggregation and conditional coding­ PACC. Following these concepts, the data object emerging from

Averbuch, Amir

357

First principles calculations for analysis martensitic transformations  

SciTech Connect (OSTI)

The change in crystal energy is calculated for atomic displacements corresponding to phonons, elastic shears, and lattice transformations. Anomalies in the phonon dispersion curves of NiAl and NiTi are analyzed and recent calculations for TiPd alloys are presented.

Harmon, B.N.; Zhao, G.L.; Ho, K.M.; Chan, C.T.; Ye, Y.Y.; Ding, Y.; Zhang, B.L.

1993-10-01T23:59:59.000Z

358

Capturing Database Transformations for Big Data Analytics  

E-Print Network [OSTI]

of Houston DBMS #12;Organization · Introduction · Classification · Program · Case Study · Conclusions DBMS Transformations to Build Data Sets for Data Mining, Data & Knowledge Engineering (DKE), 2014, Elsevier. DBMS #12 for this project might remain in the database, using resources. DBMS #12;Motivation: Saving Work · Different users

Ordonez, Carlos

359

Deforestation: Transforming programs to eliminate trees  

E-Print Network [OSTI]

Deforestation: Transforming programs to eliminate trees Philip Wadler University of Glasgow \\Lambda---called the Deforestation Algorithm. A form of function definition that uses no intermediate trees is characterised, called and the Deforestation Algorithm are presented in three steps. The first step presents ``pure'' treeless form in a first

Wadler, Philip

360

Transformation and regeneration of Texas cotton  

E-Print Network [OSTI]

contained genes associated with pathogen resistance (PR genes): osmotin (PR-5) and a basic PR-1 in pXBOP, and lox1 in pJMA4. Plants were transformed using the shoot apex/Agrobacterium method (US Pat. # 5,164,310; Smith et al., 1992) developed earlier...

Luo, Jinhua

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Early diagenetic transformations of peat Original research  

E-Print Network [OSTI]

Early diagenetic transformations of peat Original research Organic matter sources and decay;KEY WORDS: bioindicators - carbohydrates - labile organic matter - peat botanical composition to the fate of organic matter (OM) in the underlying peat. Our aims were to determine how moisture conditions

Paris-Sud XI, Universit de

362

Birck Nanotechnology Center Transforming Light with Metamaterials  

E-Print Network [OSTI]

Birck Nanotechnology Center Transforming Light with Metamaterials (with A.V. Kildishev, W. Cai, V.P. Drachev, S. Xiao, U. Chettiar) OUTLINE Birck Nanotechnology Center Vladimir M. Shalaev Purdue University;Birck Nanotechnology Center Meta-Magnetics: from 10GHz to 200THz Terahertz magnetism a) Yen, et al. ~ 1

Fiebig, Peter

363

AALBORGUNIVERSITY DEPARTMENTOFENERGY TECHNOLOGY Transformer in series  

E-Print Network [OSTI]

connected to the reference ground. The value of the earth impedance is lower than expected in order to make. The simulations are first done considering a load represented by means of lumped parameters, meaning that only in the screen of the 10kV cable. As it can be seen, the new #12;transformer does not help reducing

Silva, Filipe Faria Da

364

Transforming IT University Health Care System  

E-Print Network [OSTI]

Transforming IT University Health Care System improves patient care with enterprise grid storage infrastructure. Solution IBM helped University Health Care System (UHCS) develop a plan for using technology of storage University Health Care System is a not- for-profit community hospital network that serves 25

365

Service Science: Design for Scaling and Transformation  

E-Print Network [OSTI]

-led revolution which is not just post-Industrial Revolution, but also poising Knowledge Economy for furtherService Science: Design for Scaling and Transformation Cheng K. Hsu Professor of Industrial? Is a service-led revolution reality or gimmick? Each question and answer becomes a chapter of the book, which

Hsu, Cheng

366

Transforming Abstract Interpretations by Abstract Interpretation  

E-Print Network [OSTI]

an instance of the same abstract interpretation frame- work lifted to higher types, i.e. where the objectsTransforming Abstract Interpretations by Abstract Interpretation New Challenges in Language - Verona, Italy (roberto.giacobazzi|isabella.mastroeni)@univr.it Abstract. In this paper we exploit

Giacobazzi, Roberto

367

Contact Anosov flows and the FBI transform  

E-Print Network [OSTI]

This paper is about spectral properties of transfer operators for contact Anosov flows. The main result gives the essential spectral radius of the transfer operators acting on the so-called anisotropic Sobolev space exactly in terms of dynamical exponents. Also we provide a simplified proof by using the FBI transform.

Tsujii, Masato

2010-01-01T23:59:59.000Z

368

TRANSFORMING health society culture economy environment  

E-Print Network [OSTI]

TRANSFORMING health society culture economy environment #12;0302 04 32 62 92 110 132 #12;5 health resistant to current treatments. An added advantage is that the phage can be freeze-dried for long Professions, and one of its projects, headed by Professor Ann Moore, sets out to see if a type of exercise

Bontcheva, Kalina

369

Transforming the Museum SPARK | THINK | MAKE  

E-Print Network [OSTI]

Transforming the Museum SPARK | THINK | MAKE #12;WILLIAMS COLLEGE MUSEUM OF ART 1 Museums. Because of its varied collections and its breadth and nimbleness of forms, the college museum of the museum's 9th decade of history. As we developed the vision for its future we sought to both leverage its

Aalberts, Daniel P.

370

2010 Solar Market Transformation Analysis and Tools  

Broader source: Energy.gov [DOE]

This document is an overview describing the solar analysis and tool development projects funded by the DOE Market Transformation team for fiscal year 2010. These quick snapshots are intended to give you a basic look at the scope, timeline, and expected deliverables for each project.

371

On the discrete bicycle transformation S. Tabachnikov  

E-Print Network [OSTI]

On the discrete bicycle transformation S. Tabachnikov E. Tsukerman 1 Introduction The motivation for this paper comes from the study of a simple model of bicycle motion. The bicycle is modeled as an oriented segment in the plane of fixed length , the wheelbase of the bicycle. The motion is constrained so

Tabachnikov, Sergei

372

Ratio of Pion Kaon Production in Proton Carbon Interactions  

SciTech Connect (OSTI)

The ratio of pion-kaon production by 120 GeV/c protons incident on carbon target is presented. The data was recorded with the Main Injector Particle Production experiment at Fermi National Accelerator Laboratory. Production ratios of K{sup +}/{pi}{sup +}, K{sup -}/{pi}{sup -}, K{sup -}/K{sup +}, and {pi}{sup -}/{pi}{sup +} are measured in 24 bins in longitudinal momentum from 20 to 90 GeV/c and transverse momentum up to 2 GeV/c. The measurement is compared to existing data sets, particle production Monte Carlo results from FLUKA-06, parametrization of proton-beryllium data at 400/450 GeV/c, and ratios measured by the MINOS experiment on the NuMI target.

Lebedev, Andrey V.; /Harvard U.

2007-05-01T23:59:59.000Z

373

Enhanced Chemical Cleaning  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power SystemsResources DOEElectricalon Clean DevelopmentCorporation -| DepartmentEarnedEnhanced

374

Estimate of the triton asymptotic D to S ratio  

SciTech Connect (OSTI)

The role of the deuteron asymptotic D to S normalization ratio eta/sup d/ in the calculation of triton observables is emphasized both within a simple model and in an exact numerical calculation. We suggest a new correlation among eta/sup t//eta/sup d/ and E/sub t/ in dynamical three nucleon calculations, where eta/sup t/ is the triton asymptotic D to S ratio and E/sub t/ is the triton binding energy. Studying this correlation we obtained eta/sup t//eta/sup d/ = 1.68 +- 0.04. .AE

Frederico, T.; Adhikari, S.K.; Hussein, M.S.

1988-01-01T23:59:59.000Z

375

Static magnetic field concentration and enhancement using magnetic materials with positive permeability  

E-Print Network [OSTI]

In this paper a novel compressor for static magnetic fields is proposed based on finite embedded transformation optics. When the DC magnetic field passes through the designed device, the magnetic field can be compressed inside the device. After it passes through the device, one can obtain an enhanced static magnetic field behind the output surface of the device (in a free space region). We can also combine our compressor with some other structures to get a higher static magnetic field enhancement in a free space region. In contrast with other devices based on transformation optics for enhancing static magnetic fields, our device is not a closed structure and thus has some special applications (e.g., for controlling magnetic nano-particles for gene and drag delivery). The designed compressor can be constructed by using currently available materials or DC meta-materials with positive permeability. Numerical simulation verifies good performance of our device.

Sun, F

2013-01-01T23:59:59.000Z

376

Effect of HVDC component enhancement on the overall system reliability performance  

SciTech Connect (OSTI)

This paper examines several HVDC transmission system component enhancement schemes as they affect the overall system availability using a system model based on a practical system and actual system outage data. A frequency and duration approach is used in modeling the system components such as valve-groups, converter transformers, smoothing reactors, pole, and bipole controls, transmission lines, and the overall system model developed. This model is used to compare the impact on the overall system availability of different methods of HVDC converter enhancement. These methods include the addition of spare converter transformers, spare smoothing reactors, replacement of valves, and increase of converter rating. Finally the costs of typical enhancements are compared with the benefits arising with the improved availability using a cost-benefit analysis.

Kuruganty, S. (Univ. of North Dakota, Grand Forks, ND (United States). Dept. of Electrical Engineering)

1994-01-01T23:59:59.000Z

377

Observable Proxies For 26 Al Enhancement  

SciTech Connect (OSTI)

We consider the cospatial production of elements in supernova explosions to find observationally detectable proxies for enhancement of {sup 26}Al in supernova ejecta and stellar systems. Using four progenitors we explore a range of 1D explosions at different energies and an asymmetric 3D explosion. We find that the most reliable indicator of the presence of {sup 26}Al in unmixed ejecta is a very low S/Si ratio ({approx} 0.05). Production of N in O/S/Si-rich regions is also indicative. The biologically important element P is produced at its highest abundance in the same regions. Proxies should be detectable in supernova ejecta with high spatial resolution multi wavelength observations, but the small absolute abundance of material injected into a proto-planetary disk makes detection unlikely in existing or forming stellar/planetary systems.

Fryer, Christopher L [Los Alamos National Laboratory; Young, Patrick A [Los Alamos National Laboratory; Ellinger, Carola I [ASU; Arnett, William D [UNIV ARIZONA

2008-01-01T23:59:59.000Z

378

Process and apparatus for thermal enhancement  

DOE Patents [OSTI]

Thermal treatment apparatus for downhole deployment comprising a combustion stage with an elongated hot wall combustion zone for the substantially complete combustion of the fuel-air mixture and an ignition zone immediately upstream from the combustion zone in which a mixture of atomized liquid fuel and air at or below stoichiometric ratio is ignited; together with a water injection stage immediately downstream from the combustion zone through which essentially partuculate free high temperature combustion products flow from the combustion zone and into which water is sprayed. The resulting mixture of steam and combustion products is injected into an oil formation for enhancing the speed and effectiveness of reservoir response due to physical, chemical, and/or thermal stimulation interactions.

Burrill, Jr., Charles E. (Billerica, MA); Smirlock, Martin E. (Brimfield, MA); Krepchin, Ira P. (Newton Upper Falls, MA)

1984-06-26T23:59:59.000Z

379

Contrast-Enhanced Digital Mammography and Angiogenesis  

SciTech Connect (OSTI)

Angiogenesis could be a means for pouring contrast media around tumors. In this work, optimization of radiological parameters for contrast-enhanced subtraction techniques in mammography has been performed. A modification of Lemacks' analytical formalism was implemented to model the X-ray absorption in the breast with contrast medium and detection by a digital image receptor. Preliminary results of signal-to-noise ratio analysis show the advantage of subtracting two images taken at different energies, one prior and one posterior to the injection of contrast medium. Preliminary experimental results using a custom-made phantom have shown good agreement with calculations. A proposal is presented for the clinical application of the optimized technique, which aims at finding correlations between angiogenesis indicators and dynamic variables of contrast medium uptake.

Rosado-Mendez, I.; Palma, B. A. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico); UNAM Medical Physics Program, Mexico City (Mexico); Villasenor, Y. [Instituto Nacional de Cancerologia (INCan) (Mexico); Benitez-Bribiesca, L. [Centro Medico Nacional Siglo XXI (Mexico); Brandan, M. E. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico)

2007-11-26T23:59:59.000Z

380

Crossover from capillary fingering to compact invasion for two-phase drainage with stable viscosity ratios  

SciTech Connect (OSTI)

Motivated by a wide range of applications from enhanced oil recovery to carbon dioxide sequestration, we have developed a two-dimensional, pore-level model of immiscible drainage, incorporating viscous, capillary, and gravitational effects. This model has been validated quantitatively, in the very different limits of zero viscosity ratio and zero capillary number; flow patterns from modeling agree well with experiment. For a range of stable viscosity ratios (?injected/?displaced 1), we have increased the capillary number, Nc, and studied the way in which the flows deviate from capillary fingering (the fractal flow of invasion percolation) and become compact for realistic capillary numbers. Results exhibiting this crossover from capillary fingering to compact invasion are presented for the average position of the injected fluid, the fluidfluid interface, the saturation and fractional flow profiles, and the relative permeabilities. The agreement between our results and earlier theoretical predictions [Blunt M, King MJ, Scher H. Simulation and theory of two-phase flow in porous media. Phys Rev A 1992;46:768099; Lenormand R. Flow through porous media: limits of fractal patterns. Proc Roy Soc A 1989;423:15968; Wilkinson D. Percolation effects in immiscible displacement. Phys Rev A 1986;34:138090; Xu B, Yortsos YC, Salin D. Invasion Percolation with viscous forces. Phys Rev E 1998;57:73951] supports the validity of these general theoretical arguments, which were independent of the details of the porous media in both two and three dimensions.

Ferer, M.V.; Bromhal, G.S.; Smith, D.H

2007-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Laboratory Investigation of Contact Freezing and the Aerosol to Ice Crystal Transformation Process  

SciTech Connect (OSTI)

This project has been focused on the following objectives: 1. Investigations of the physical processes governing immersion versus contact nucleation, specifically surface-induced crystallization; 2. Development of a quadrupole particle trap with full thermodynamic control over the temperature range 0 to 40 C and precisely controlled water vapor saturation ratios for continuous, single-particle measurement of the aerosol to ice crystal transformation process for realistic ice nuclei; 3. Understanding the role of ice nucleation in determining the microphysical properties of mixed-phase clouds, within a framework that allows bridging between laboratory and field measurements.

Shaw, Raymond A. [Michigan Technological University

2014-10-28T23:59:59.000Z

382

Methods for detection and characterization of signals in noisy data with the Hilbert-Huang Transform  

E-Print Network [OSTI]

The Hilbert-Huang Transform is a novel, adaptive approach to time series analysis that does not make assumptions about the data form. Its adaptive, local character allows the decomposition of non-stationary signals with hightime-frequency resolution but also renders it susceptible to degradation from noise. We show that complementing the HHT with techniques such as zero-phase filtering, kernel density estimation and Fourier analysis allows it to be used effectively to detect and characterize signals with low signal to noise ratio.

Alexander Stroeer; John K. Cannizzo; Jordan B. Camp; Nicolas Gagarin

2009-03-26T23:59:59.000Z

383

Single beam Fourier transform digital holographic quantitative phase microscopy  

SciTech Connect (OSTI)

Quantitative phase contrast microscopy reveals thickness or height information of a biological or technical micro-object under investigation. The information obtained from this process provides a means to study their dynamics. Digital holographic (DH) microscopy is one of the most used, state of the art single-shot quantitative techniques for three dimensional imaging of living cells. Conventional off axis DH microscopy directly provides phase contrast images of the objects. However, this process requires two separate beams and their ratio adjustment for high contrast interference fringes. Also the use of two separate beams may make the system more vulnerable to vibrations. Single beam techniques can overcome these hurdles while remaining compact as well. Here, we describe the development of a single beam DH microscope providing whole field imaging of micro-objects. A hologram of the magnified object projected on to a diffuser co-located with a pinhole is recorded with the use of a commercially available diode laser and an arrayed sensor. A Fourier transform of the recorded hologram directly yields the complex amplitude at the image plane. The method proposed was investigated using various phase objects. It was also used to image the dynamics of human red blood cells in which sub-micrometer level thickness variation were measurable.

Anand, A., E-mail: arun-nair-in@yahoo.com; Chhaniwal, V. K.; Mahajan, S.; Trivedi, V. [Optics Laboratory, Applied Physics Department, Faculty of Technology and Engineering, M.S. University of Baroda, Vadodara 390001 (India)] [Optics Laboratory, Applied Physics Department, Faculty of Technology and Engineering, M.S. University of Baroda, Vadodara 390001 (India); Faridian, A.; Pedrini, G.; Osten, W. [Institut fr Technische Optik, Universitt Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart (Germany)] [Institut fr Technische Optik, Universitt Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart (Germany); Dubey, S. K. [Siemens Technology and Services Pvt. Ltd, Corporate TechnologyResearch and Technology Centre, Bangalore 560100 (India)] [Siemens Technology and Services Pvt. Ltd, Corporate TechnologyResearch and Technology Centre, Bangalore 560100 (India); Javidi, B. [Department of Electrical and Computer Engineering, U-4157, University of Connecticut, Storrs, Connecticut 06269-2157 (United States)] [Department of Electrical and Computer Engineering, U-4157, University of Connecticut, Storrs, Connecticut 06269-2157 (United States)

2014-03-10T23:59:59.000Z

384

A Link Between Black Holes and the Golden Ratio  

E-Print Network [OSTI]

We consider a variational formalism to describe black holes solution in higher dimensions. Our procedure clarifies the arbitrariness of the radius parameter and, in particular, the meaning of the event horizon of a black hole. Moreover, our formalism enables us to find a surprising link between black holes and the golden ratio.

J. A. Nieto

2011-06-02T23:59:59.000Z

385

aerosol ratio test: Topics by E-print Network  

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

aerosol ratio test First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Effect of mineral dust aerosol...

386

A genetically encoded fluorescent reporter of ATP:ADP ratio  

E-Print Network [OSTI]

A genetically encoded fluorescent reporter of ATP:ADP ratio Jim Berg1,2, Yin Pun Hung1 & Gary's affinity for Mg-ATP was o100 nM, as seen for other members of the bacterial PII regulator family, a surprisingly high affinity given that normal intracellular ATP concentration is in the millimolar range. ADP

Yellen, Gary

387

Generalized solar load ratio correlation for direct gain buildings  

SciTech Connect (OSTI)

A generalized solar load ratio correlation has been developed for direct gain buildings by generating relationships between the correlation parameters and two fundamental design parameters. The first design parameter is the steady state conductance of the solar aperture, U/sub c/. The second is the effective heat capacity of the solar zone, EHC.

Wray, W.O.; Best, E.D.

1986-01-01T23:59:59.000Z

388

Net energy ratio of photobiohydrogen generation G. Burgessa  

E-Print Network [OSTI]

of standard theory for tubular solar collectors. Small diameter reactors have a low NER as the mixing energyNet energy ratio of photobiohydrogen generation G. Burgessa and J.G. Fernández National University Canberra ACT 0200, AUSTRALIA E-mail: greg.burgess@anu.edu.au Abstract: We estimate

389

Prediction-Based Compression Ratio Boundaries for Medical Images  

E-Print Network [OSTI]

Prediction-Based Compression Ratio Boundaries for Medical Images Xiaojun Qi Computer Science present prediction-based image compression techniques take advantage of either intra- or inter function. The prediction-based compression technique has been applied on some magnetic resonance (MR) brain

Qi, Xiaojun

390

Magnesium Isotope Ratios in omega Centauri Red Giants  

E-Print Network [OSTI]

We have used high resolution observations obtained at the AAT with UHRF (R ~ 100,000) and at Gemini-S with b-HROS (R ~ 150,000) to determine magnesium isotope ratios for seven omega Centauri red giants that cover a range in iron abundance from [Fe/H] = --1.78 to --0.78 dex, and for two red giants in M4 (NGC 6121). The omega Centauri stars sample both the "primordial" (i.e., O-rich, Na and Al-poor) and the "extreme" (O-depleted, Na and Al-rich) populations in the cluster. The primordial population stars in both omega Centauri and M4 show (25Mg, 26Mg)/24 Mg isotopic ratios that are consistent with those found for the primordial population in other globular clusters with similar [Fe/H] values. The isotopic ratios for the omega Centauri extreme stars are also consistent with those for extreme population stars in other clusters. The results for the extreme population stars studied indicate that the 26Mg/24Mg ratio is highest at intermediate metallicities ([Fe/H] < --1.4 dex), and for the highest [Al/Fe] values....

Da Costa, G S; Yong, David

2013-01-01T23:59:59.000Z

391

Design studies of low aspect ratio quasi-omnigenous stellarators  

E-Print Network [OSTI]

optimization principles for the design of a more attractive reactor. These are 3 and 4 field period low aspect ratio quasi-omnigenous stellarators based on an optimization method that aims at improved confinement stability boundaries. 1. Configuration optimization The development of increasingly sophisticated

Martín-Solís, José Ramón

392

Holographic study of conventional and negative Poisson's ratio metallic foams  

E-Print Network [OSTI]

. Inhomogeneous, non-affine deformation was observed holographically in both foam materials. Introduction in this series were determined from displacement measurements of high magnification video tapes of the tensile a very useful and reliable tool to determine the Poisson's ratio of orthotropic FRP (Fiber Reinforced

Lakes, Roderic

393

Allowable pillar to diameter ratio for strategic petroleum reserve caverns.  

SciTech Connect (OSTI)

This report compiles 3-D finite element analyses performed to evaluate the stability of Strategic Petroleum Reserve (SPR) caverns over multiple leach cycles. When oil is withdrawn from a cavern in salt using freshwater, the cavern enlarges. As a result, the pillar separating caverns in the SPR fields is reduced over time due to usage of the reserve. The enlarged cavern diameters and smaller pillars reduce underground stability. Advances in geomechanics modeling enable the allowable pillar to diameter ratio (P/D) to be defined. Prior to such modeling capabilities, the allowable P/D was established as 1.78 based on some very limited experience in other cavern fields. While appropriate for 1980, the ratio conservatively limits the allowable number of oil drawdowns and hence limits the overall utility and life of the SPR cavern field. Analyses from all four cavern fields are evaluated along with operating experience gained over the past 30 years to define a new P/D for the reserve. A new ratio of 1.0 is recommended. This ratio is applicable only to existing SPR caverns.

Ehgartner, Brian L.; Park, Byoung Yoon

2011-05-01T23:59:59.000Z

394

Negative Poisson's Ratio Behavior Induced by an Elastic Instability  

E-Print Network [OSTI]

's ratio, which is approximately 0.5 for rubber and 0.3 for glass and steel. Materials with a negative] prostheses,[3] piezocomposites with optimal performance[4] and foams with superior damping and acoustic foams with reentrant struc- tures,[1] hierarchical laminates,[12] polymeric and metallic foams,[13

Reis, Pedro Miguel

395

Broadband Quantum Efficiency Enhancement in High Index Nanowires Resonators  

E-Print Network [OSTI]

Light trapping in sub-wavelength semiconductor nanowires (NWs) offers a promising approach to simultaneously reducing material consumption and enhancing photovoltaic performance. Nevertheless, the absorption efficiency of a NW, defined by the ratio of optical absorption cross section to the NW diameter, lingers around 1 in existing NW photonic devices, and the absorption enhancement suffers from a narrow spectral width. Here, we show that the absorption efficiency can be significantly improved in NWs with higher refractive indices, by an experimental observation of up to 350% external quantum efficiency (EQE) in lead sulfide (PbS) NW resonators, a 3-fold increase compared to Si NWs. Furthermore, broadband absorption enhancement is achieved in single tapered NWs, where light of various wavelengths is absorbed at segments with different diameters analogous to a tandem solar cell. Overall, the single NW Schottky junction solar cells benefit from optical resonance, near bandgap open circuit voltage, and long mino...

Yang, Yiming; Hyatt, Steven; Yu, Dong

2015-01-01T23:59:59.000Z

396

The Proton Form Factor Ratio Measurements at Jefferson Lab  

SciTech Connect (OSTI)

The ratio of the proton form factors, G{sub Ep}/G{sub Mp}, has been measured from Q{sup 2} of 0.5 GeV{sup 2} to 8.5 GeV{sup 2}, at the Jefferson Laboratory, using the polarization transfer method. This ratio is extracted directly from the measured ratio of the transverse and longitudinal polarization components of the recoiling proton in elastic electron-proton scattering. The discovery that the proton form factor ratio measured in these experiments decreases approximately linearly with four-momentum transfer, Q{sup 2}, for values above #25;~1 GeV{sup 2}, is one of the most significant results to come out of JLab. These results have had a large impact on progress in hadronic physics; and have required a significant rethinking of nucleon structure. The increasingly common use of the double-polarization technique to measure the nucleon form factors, in the last 15 years, has resulted in a dramatic improvement of the quality of all four nucleon electromagnetic form factors, G{sub Ep}, G{sub Mp}, G{sub En} and G{sub Mn}. There is an approved experiment at JLab, GEP(V), to continue the ratio measurements to 12 GeV{sup 2}. A dedicated experimental setup, the Super Bigbite Spectrometer (SBS), will be built for this purpose. It will be equipped with a focal plane polarimeter to measure the polarization of the recoil protons. The scattered electrons will be detected in an electromagnetic calorimeter. In this presentation, I will review the status of the proton elastic electromagnetic form factors and discuss a number of theoretical approaches to describe nucleon form factors.

Punjabi, Vina A. [Norfolk State University, Norfolk, VA (United States); Perdrisat, Charles F. [William and Mary College, Williamsburg, VA (United States)

2014-03-01T23:59:59.000Z

397

MAGNESIUM ISOTOPE RATIOS IN {omega} CENTAURI RED GIANTS  

SciTech Connect (OSTI)

We have used the high-resolution observations obtained at the Anglo-Australian Telescope with Ultra-High Resolution Facility (R {approx} 100,000) and at Gemini-S with b-HROS (R {approx} 150,000) to determine magnesium isotope ratios for seven {omega} Cen red giants that cover a range in iron abundance from [Fe/H] = -1.78 to -0.78 dex, and for two red giants in M4 (NGC 6121). The {omega} Cen stars sample both the ''primordial'' (i.e., O-rich, Na- and Al-poor) and the ''extreme'' (O-depleted, Na- and Al-rich) populations in the cluster. The primordial population stars in both {omega} Cen and M4 show ({sup 25}Mg, {sup 26}Mg)/{sup 24}Mg isotopic ratios that are consistent with those found for the primordial population in other globular clusters with similar [Fe/H] values. The isotopic ratios for the {omega} Cen extreme stars are also consistent with those for extreme population stars in other clusters. The results for the extreme population stars studied indicate that the {sup 26}Mg/{sup 24}Mg ratio is highest at intermediate metallicities ([Fe/H] < -1.4 dex), and for the highest [Al/Fe] values. Further, the relative abundance of {sup 26}Mg in the extreme population stars is notably higher than that of {sup 25}Mg, in contrast to model predictions. The {sup 25}Mg/{sup 24}Mg isotopic ratio in fact does not show any obvious dependence on either [Fe/H] or [Al/Fe] nor, intriguingly, any obvious difference between the primordial and extreme population stars.

Da Costa, G. S.; Norris, John E.; Yong, David [Research School of Astronomy and Astrophysics, Australian National University, Canberra, ACT 0200 (Australia)

2013-05-20T23:59:59.000Z

398

Detecting and Removing Data Artifacts in Hadamard Transform Ion Mobility-Mass Spectrometry Measurements  

SciTech Connect (OSTI)

Applying Hadamard transform multiplexing to ion mobility separations (IMS) can significantly improve the signal-to-noise ratio and throughput for IMS coupled mass spectrometry (MS) measurements by increasing the ion utilization efficiency. However, it has been determined that both fluctuations in ion intensity as well as spatial shifts in the multiplexed data lower the signal-to-noise ratios and appear as noise in downstream processing of the data. To address this problem, we have developed a novel algorithm that discovers and eliminates data artifacts. The algorithm uses knowledge of the true signal peaks derived from the encoded data and allows for both artifacts and noise to be removed with high confidence, decreasing the likelihood of false identifications in subsequent data processing. The result is that IMS-MS can be applied to increase measurement sensitivity while avoiding artifacts that have previously limited its utility.

Prost, Spencer A.; Crowell, Kevin L.; Baker, Erin Shammel; Ibrahim, Yehia M.; Clowers, Brian H.; Monroe, Matthew E.; Anderson, Gordon A.; Smith, Richard D.; Payne, Samuel H.

2014-12-01T23:59:59.000Z

399

Wind Speed Data Analysis using Wavelet Transform  

E-Print Network [OSTI]

AbstractRenewable energy systems are becoming a topic of great interest and investment in the world. In recent years wind power generation has experienced a very fast development in the whole world. For planning and successful implementations of good wind power plant projects, wind potential measurements are required. In these projects, of great importance is the effective choice of the micro location for wind potential measurements, installation of the measurement station with the appropriate measuring equipment, its maintenance and analysis of the gained data on wind potential characteristics. In this paper, a wavelet transform has been applied to analyze the wind speed data in the context of insight in the characteristics of the wind and the selection of suitable locations that could be the subject of a wind farm construction. This approach shows that it can be a useful tool in investigation of wind potential. KeywordsWind potential, Wind speed data, Wavelet transform.

S. Avdakovic; A. Lukac; A. Nuhanovic; M. Music

400

Two-dimensional fourier transform spectrometer  

DOE Patents [OSTI]

The present invention relates to a system and methods for acquiring two-dimensional Fourier transform (2D FT) spectra. Overlap of a collinear pulse pair and probe induce a molecular response which is collected by spectral dispersion of the signal modulated probe beam. Simultaneous collection of the molecular response, pulse timing and characteristics permit real time phasing and rapid acquisition of spectra. Full spectra are acquired as a function of pulse pair timings and numerically transformed to achieve the full frequency-frequency spectrum. This method demonstrates the ability to acquire information on molecular dynamics, couplings and structure in a simple apparatus. Multi-dimensional methods can be used for diagnostic and analytical measurements in the biological, biomedical, and chemical fields.

DeFlores, Lauren; Tokmakoff, Andrei

2013-09-03T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Enhanced oil recovery system  

DOE Patents [OSTI]

All energy resources available from a geopressured geothermal reservoir are used for the production of pipeline quality gas using a high pressure separator/heat exchanger and a membrane separator, and recovering waste gas from both the membrane separator and a low pressure separator in tandem with the high pressure separator for use in enhanced oil recovery, or in powering a gas engine and turbine set. Liquid hydrocarbons are skimmed off the top of geothermal brine in the low pressure separator. High pressure brine from the geothermal well is used to drive a turbine/generator set before recovering waste gas in the first separator. Another turbine/generator set is provided in a supercritical binary power plant that uses propane as a working fluid in a closed cycle, and uses exhaust heat from the combustion engine and geothermal energy of the brine in the separator/heat exchanger to heat the propane.

Goldsberry, Fred L. (Spring, TX)

1989-01-01T23:59:59.000Z

402

Photon enhanced thermionic emission  

DOE Patents [OSTI]

Photon Enhanced Thermionic Emission (PETE) is exploited to provide improved efficiency for radiant energy conversion. A hot (greater than 200.degree. C.) semiconductor cathode is illuminated such that it emits electrons. Because the cathode is hot, significantly more electrons are emitted than would be emitted from a room temperature (or colder) cathode under the same illumination conditions. As a result of this increased electron emission, the energy conversion efficiency can be significantly increased relative to a conventional photovoltaic device. In PETE, the cathode electrons can be (and typically are) thermalized with respect to the cathode. As a result, PETE does not rely on emission of non-thermalized electrons, and is significantly easier to implement than hot-carrier emission approaches.

Schwede, Jared; Melosh, Nicholas; Shen, Zhixun

2014-10-07T23:59:59.000Z

403

Enhanced Geothermal Systems Technologies  

Broader source: Energy.gov [DOE]

Geothermal Energy an?d the Enhanced Geothermal Systems Concept The Navy 1 geothermal power plant near Coso Hot Springs, California, is applying EGS technology. Heat is naturally present everywhere in the earth. For all intents and purposes, heat from the earth is inexhaustible. Water is not nearly as ubiquitous in the earth as heat. Most aqueous fluids are derived from surface waters that have percolated into the earth along permeable pathways such as faults. Permeability is a measure of the ease of fluid flow through rock. The permeability of rock results from pores, fractures, joints, faults, and other openings which allow fluids to move. High permeability implies that fluids can flow rapidly through the rock. Permeability and, subsequently, the amount of fluids tend to decrease with depth as openings in the rocks compress from the weight of the overburden.

404

Plasmonic enhanced ultrafast switch.  

SciTech Connect (OSTI)

Ultrafast electronic switches fabricated from defective material have been used for several decades in order to produce picosecond electrical transients and TeraHertz radiation. Due to the ultrashort recombination time in the photoconductor materials used, these switches are inefficient and are ultimately limited by the amount of optical power that can be applied to the switch before self-destruction. The goal of this work is to create ultrafast (sub-picosecond response) photoconductive switches on GaAs that are enhanced through plasmonic coupling structures. Here, the plasmonic coupler primarily plays the role of being a radiation condenser which will cause carriers to be generated adjacent to metallic electrodes where they can more efficiently be collected.

Subramania,Ganapathi Subramanian; Reno, John Louis; Passmore, Brandon Scott; Harris, Tom.; Shaner, Eric Arthur; Barrick, Todd A.

2009-09-01T23:59:59.000Z

405

Transformation of gram positive bacteria by sonoporation  

SciTech Connect (OSTI)

The present invention provides a sonoporation-based method that can be universally applied for delivery of compounds into Gram positive bacteria. Gram positive bacteria which can be transformed by sonoporation include, for example, Bacillus, Streptococcus, Acetobacterium, and Clostridium. Compounds which can be delivered into Gram positive bacteria via sonoporation include nucleic acids (DNA or RNA), proteins, lipids, carbohydrates, viruses, small organic and inorganic molecules, and nano-particles.

Yang, Yunfeng; Li, Yongchao

2014-03-11T23:59:59.000Z

406

Marketing and Market Transformation | Department of Energy  

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

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 Delicious RankCombustion | Department of EnergyDevelopment Accident Tolerant Fuel:Market Transformation Marketing

407

An Imaging Fourier Transform Spectrometer for NGST  

E-Print Network [OSTI]

Due to its simultaneous deep imaging and integral field spectroscopic capability, an Imaging Fourier Transform Spectrograph (IFTS) is ideally suited to the Next Generation Space Telescope (NGST) mission, and offers opportunities for tremendous scientific return in many fields of astrophysical inquiry. We describe the operation and quantify the advantages of an IFTS for space applications. The conceptual design of the Integral Field Infrared Spectrograph (IFIRS) is a wide field (5'.3 x 5'.3) four-port imaging Michelson interferometer.

James R. Graham

1999-07-18T23:59:59.000Z

408

Liquid chromatography/Fourier transform IR spectrometry interface flow cell  

DOE Patents [OSTI]

A zero dead volume (ZDV) microbore high performance liquid chromatography (..mu.. HPLC)/Fourier transform infrared (FTIR) interface flow cell includes an IR transparent crystal having a small diameter bore therein through which a sample liquid is passed. The interface flow cell further includes a metal holder in combination with a pair of inner, compressible seals for directly coupling the thus configured spectrometric flow cell to the outlet of a ..mu.. HPLC column end fitting to minimize the transfer volume of the effluents exiting the ..mu.. HPLC column which exhibit excellent flow characteristics due to the essentially unencumbered, open-flow design. The IR beam passes transverse to the sample flow through the circular bore within the IR transparent crystal, which is preferably comprised of potassium bromide (KBr) or calcium fluoride (CaF/sub 2/), so as to minimize interference patterns and vignetting encountered in conventional parallel-plate IR cells. The long IR beam pathlength and lensing effect of the circular cross-section of the sample volume in combination with the refractive index differences between the solvent and the transparent crystal serve to focus the IR beam in enhancing sample detection sensitivity by an order of magnitude.

Johnson, C.C.; Taylor, L.T.

1985-01-04T23:59:59.000Z

409

Tripartite entanglement transformations and tensor rank  

E-Print Network [OSTI]

Understanding the nature of multipartite entanglement is a central mission of quantum information theory. To this end, we investigate the question of tripartite entanglement convertibility. We find that there exists no easy criterion to determine whether a general tripartite transformation can be performed with a nonzero success probability and in fact, the problem is NP-hard. Our results are based on the connections between multipartite entanglement and tensor rank (also called Schmidt rank), a key concept in algebraic complexity theory. Not only does this relationship allow us to characterize the general difficulty in determining possible entanglement transformations, but it also enables us to observe the previously overlooked fact that {\\em the Schmidt rank is not an additive entanglement measure}. As a result, we improve some best known transformation rates between specific tripartite entangled states. In addition, we find obtaining the most efficient algorithm for matrix multiplication to be precisely equivalent to determining the optimal rate of conversion between the Greenberger-Horne-Zeilinger state and a triangular distribution of three Einstein-Podolsky-Rosen states.

Eric Chitambar; Runyao Duan; Yaoyun Shi

2008-05-19T23:59:59.000Z

410

Phase Transformations in Binary Colloidal Monolayers  

E-Print Network [OSTI]

Phase transformations can be difficult to characterize at the microscopic level due to the inability to directly observe individual atomic motions. Model colloidal systems, by contrast, permit the direct observation of individual particle dynamics and of collective rearrangements, which allows for real-space characterization of phase transitions. Here, we study a quasi-two-dimensional, binary colloidal alloy that exhibits liquid-solid and solid-solid phase transitions, focusing on the kinetics of a diffusionless transformation between two crystal phases. Experiments are conducted on a monolayer of magnetic and nonmagnetic spheres suspended in a thin layer of ferrofluid and exposed to a tunable magnetic field. A theoretical model of hard spheres with point dipoles at their centers is used to guide the choice of experimental parameters and characterize the underlying materials physics. When the applied field is normal to the fluid layer, a checkerboard crystal forms; when the angle between the field and the normal is sufficiently large, a striped crystal assembles. As the field is slowly tilted away from the normal, we find that the transformation pathway between the two phases depends strongly on crystal orientation, field strength, and degree of confinement of the monolayer. In some cases, the pathway occurs by smooth magnetostrictive shear, while in others it involves the sudden formation of martensitic plates.

Ye Yang; Lin Fu; Catherine Marcoux; Joshua E. S. Socolar; Patrick Charbonneau; Benjamin B. Yellen

2015-02-10T23:59:59.000Z

411

Beyond 2020--Strategies and Costs for Transforming the European  

E-Print Network [OSTI]

Beyond 2020--Strategies and Costs for Transforming the European Energy System* Brigitte Knopf, Yen-Heng FOR TRANSFORMING THE EUROPEAN ENERGY SYSTEM BRIGITTE KNOPF*,§§ , YEN-HENG HENRY CHEN , ENRICA DE CIAN , HANNAH

412

Redefine the standard : design for the transforming World Wide Web  

E-Print Network [OSTI]

Elements within the physical space are transformed through natural processes that change their properties over time. These transformations are part of our everyday experiences that are often informative, influential or ...

Okamoto, Takashi, S.M. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

413

On Transformations between Probability and Spohnian Disbelief Functions  

E-Print Network [OSTI]

. Such transformations between probability and Spohn's calculi can contribute to (1) a clarification of the semantics of non-probabilistic degree of uncertain belief, and (2) to a construction of a decision theory for such calculi. In practice, the transformations...

Giang, Phan H.; Shenoy, Prakash P.

1999-07-01T23:59:59.000Z

414

The role of assessment in a lean transformation  

E-Print Network [OSTI]

When starting the journey to become a Lean company, companies commonly face the problem of understanding how to manage a Lean transformation. Often times, the first step in managing a Lean transformation is to understand ...

Shan, Raymond S. (Raymond Shing)

2008-01-01T23:59:59.000Z

415

Understanding urban housing transformations : a case study of Bhogal, India  

E-Print Network [OSTI]

This thesis attempts to describe dwelling transformations in the case of Bhogal, New Delhi. It is hoped to clarify the links between socio-economic forces and their resultant impact on physical form, through its transformation. ...

Benjamin, Solomon J., 1960-

1985-01-01T23:59:59.000Z

416

Nature and Transformation of Dissolved Organic Matter in  

E-Print Network [OSTI]

influence on transformations that occur during treatment, (ii) the climate factors have a secondary effect. As wastewater treatment plant effluent passes through treatment wetlands, the DOM undergoes transformation selected to evaluate the effects of climate, wastewater characteristics, and operating conditions

417

Laser and Electrical Current Induced Phase Transformation of...  

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

Current Induced Phase Transformation of In2Se3 Semiconductor thin film on Si(111) . Laser and Electrical Current Induced Phase Transformation of In2Se3 Semiconductor thin film...

418

1-D Transforms for the Motion Compensation Residual  

E-Print Network [OSTI]

Transforms used in image coding are also commonly used to compress prediction residuals in video coding. Prediction residuals have different spatial characteristics from images, and it is useful to develop transforms that ...

Kamisli, Fatih

419

Rice Transformation as a Means to Study Gene Expression  

E-Print Network [OSTI]

An exceptionally effective transformation procedure has been established by using class I embryo-derived rice callus. Every treated callus clump yielded multiple independently transformed plants (average 40 plantlets). Analysis of genomic DNA blots...

Jiang, Yiming

2010-10-12T23:59:59.000Z

420

Expanding Transformer Production for U.S. Market | Department...  

Broader source: Energy.gov (indexed) [DOE]

Expanding Transformer Production for U.S. Market Expanding Transformer Production for U.S. Market June 24, 2010 - 3:09pm Addthis Giant spools at Metglas' facility in Conway, S.C.,...

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

The Funk Transform as a Penrose Transform T.N. Bailey M.G. Eastwood A.R. Gover L.J. Mason  

E-Print Network [OSTI]

The Funk Transform as a Penrose Transform T.N. Bailey M.G. Eastwood A.R. Gover L.J. Mason December 2, 1999 Abstract The Funk transform is the integral transform from the space of smooth even this transform as a limit in a certain sense of the Penrose transform from C P 2 to C P \\Lambda 2 . We exploit

Gover, Rod

422

Enhancing Railroad Hazardous Materials Transportation Safety...  

Office of Environmental Management (EM)

Enhancing Railroad Hazardous Materials Transportation Safety Rail Routing Enhancing Railroad Hazardous Materials Transportation Safety Rail Routing Presentation made by Kevin...

423

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

Broader source: Energy.gov (indexed) [DOE]

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Project objective: Make Seismic...

424

Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys...  

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

Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction Reaction. Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction...

425

OXYGEN ENHANCED COMBUSTION FOR NOx CONTROL  

SciTech Connect (OSTI)

This quarterly technical progress report will summarize work accomplished for the Program through the ninth quarter April-June 2002 in the following task areas: Task 1--Oxygen Enhanced Combustion, Task 2--Oxygen Transport Membranes, Task 3--Economic Evaluation and Task 4--Program Management. The program is proceeding in accordance with the objectives for the third year. Full-scale testing using the Industrial Boiler Simulation Facility (ISBF) at Alstom Power was completed. The pilot scale experiments to evaluate the effect of air preheat and transport air stoichiometric ratio (SR) on NOx emissions were conducted at the University of Utah. Combustion modeling activities continued with full-scale combustion test furnace simulations. An OTM element was tested in Praxair's single tube high-pressure test facility and two thermal cycles were completed. PSO1d elements of new dimension were tested resulting in a lower flux than previous PSO1d elements of different dimensions, however, no element deformation was observed. Economic evaluation has confirmed the advantage of oxygen-enhanced combustion. Two potential host beta sites have been identified and proposals submitted.

David R. Thompson; Lawrence E. Bool; Jack C. Chen

2002-08-01T23:59:59.000Z

426

Accretion of dust grains as a possible origin of metal-poor stars with low alpha/Fe ratios  

E-Print Network [OSTI]

The origin of low alpha/Fe ratios in some metal-poor stars, so called low-alpha stars, is discussed. It is found that most of low-alpha stars in the Galaxy are on the main-sequence. This strongly suggests that these stars suffered from external pollution. It is also found that the abundance ratios Zn/Fe of low-alpha stars both in the Galaxy and in dwarf spheroidal galaxies are lower than the average value of Galactic halo stars whereas damped Ly alpha absorbers have higher ratios. This implies that some low-alpha stars accreted matter depleted from gas onto dust grains. To explain the features in these low-alpha stars, we have proposed that metal-poor stars harboring planetary systems are the origin of these low-alpha stars. Stars engulfing a small fraction of planetesimals enhance the surface content of Fe to exhibit low alpha/Fe ratios on their surfaces while they are on the main-sequence, because dwarfs have shallow surface convection zones where the engulfed matter is mixed. After the stars leave the main...

Shigeyama, T; Shigeyama, Toshikazu; Tsujimoto, Takuji

2003-01-01T23:59:59.000Z

427

Correctness of Program Transformations as a Termination Problem  

E-Print Network [OSTI]

Correctness of Program Transformations as a Termination Problem Conrad Rau, David Sabel,sabel,schauss}@ki.informatik.uni-frankfurt.de Abstract. The diagram-based method to prove correctness of program transformations includes the computation of (critical) overlappings be- tween the analyzed program transformation and the (standard) reduction rules

Schmidt-Schauss, Manfred

428

Rational transformations of formal power series Manfred Droste  

E-Print Network [OSTI]

Rational transformations of formal power series Manfred Droste Institut f¨ur Algebra, Technische and investigate two types of transformations for formal power series. We characterize when these transformations for algebraic optimization problems, cf. [17] and in the `max-plus-community' [5]. Regular language operations

Zhang, Guo-Qiang

429

Aggressive Test Power Reduction Through Test Stimuli Transformation  

E-Print Network [OSTI]

. Based on this analysis, we develop algorithms for transforming a set of test vectors into power- optimal that are capable of identifying the transformation that is optimal in terms of power and implementing it at minimalAggressive Test Power Reduction Through Test Stimuli Transformation £ Ozgur Sinanoglu and Alex

Orailoglu, Alex

430

Dataflow Transformations in High-level DSP System Design  

E-Print Network [OSTI]

in the application that can be analyzed and transformed for effective optimization. Because of the high level of abstraction at which they operate, the transformations employed in this process have a large impact on keyDataflow Transformations in High-level DSP System Design (Invited Paper) Sankalita Saha, Sebastian

Bhattacharyya, Shuvra S.

431

Fourier Cosine and Sine Transform on fractal space  

E-Print Network [OSTI]

In this paper, we establish local fractional Fourier Cosine and Sine Transforms on fractal space, considered some properties of local fractional Cosine and Sine Transforms, show applications of local fractional Fourier Cosine and Sine transform to local fractional equations with local fractional derivative.

Guang-Sheng Chen

2011-10-21T23:59:59.000Z

432

The Model Morphing Approach -Horizontal Transformations between Business Process  

E-Print Network [OSTI]

The Model Morphing Approach - Horizontal Transformations between Business Process Models Marion and business to busi- ness interoperability, there is a need for model transformations in the area of business this paper concentrates on transformations of models between different business process modeling languages

433

A Source-level MATLAB Transformer for DSP Applications  

E-Print Network [OSTI]

Source-level MATLAB Transformer, Arun Chauhan, Indiana University SIP 2004-08-24 #12;Compiler Components-level MATLAB Transformer, Arun Chauhan, Indiana University SIP 2004-08-24 #12;Compiler Components Parser to express transformations of interest Can specify type-based specializations Powerful enough to specify

Chauhan, Arun

434

Transformation Series as an Ideographic Character Concept Taran Granta,  

E-Print Network [OSTI]

Transformation Series as an Ideographic Character Concept Taran Granta, * and Arnold G. Klugeb be conceptualized as ``transformation series'', a proposal that is firmly grounded in evolutionary theory and consistent with the method of inferring transformation events as evidence of phylogenetic propinquity

Grant, Taran

435

Transform Version 3.4 May, 1999 Edition  

E-Print Network [OSTI]

Transform Version 3.4 May, 1999 Edition Copyright ©1990-1999 Fortner Software LLC and its Licensors. All Rights Reserved. Transform User's Guide and Reference Manual #12;Research Systems, Inc Software and its logo are trademarks of Fortner Software LLC Transform, Noesys, Plot,T3D and the HDF

Cohen, David

436

Intelligent Transformer Monitoring System Utilizing Neuro-Fuzzy  

E-Print Network [OSTI]

Intelligent Transformer Monitoring System Utilizing Neuro-Fuzzy Technique Approach Intelligent Center Intelligent Transformer Monitoring System Utilizing Neuro-Fuzzy Technique Approach Final Project transformers and circuit breakers off-line, in order to assess whether the equipment is operating normally

437

Identifying Transformer Incipient Events for Maintaining Distribution System Reliability  

E-Print Network [OSTI]

Identifying Transformer Incipient Events for Maintaining Distribution System Reliability Karen L events in single-phase distribution transformers. This analysis will aid in the development of an automatic detection method for internal incipient faults in the transformers. The detection method can

438

Model Transformation Testing: The State of the Art  

E-Print Network [OSTI]

Model Transformation Testing: The State of the Art Gehan M. K. Selim School of Computing, Queen is the notion of auto- mated model transformation, in which models are stepwise refined into more detailed models, and eventually into code. The correctness of transformations is essential to the success of MDD

Cordy, James R.

439

Transformer Thermal Modeling: Improving Reliability Using Data Quality Control  

E-Print Network [OSTI]

1 Transformer Thermal Modeling: Improving Reliability Using Data Quality Control Daniel J. Tylavsky--Eventually all large transformers will be dynamically loaded using models updated regularly from field measured data. Models obtained from measured data give more accurate results than models based on transformer

440

Transforming the advanced lab: Part I -Learning goals Benjamin Zwickl  

E-Print Network [OSTI]

Transforming the advanced lab: Part I - Learning goals Benjamin Zwickl , Noah Finkelstein and H. J-division undergraduate level. As part of transforming our senior-level Optics and Modern Physics Lab at the University, 01.40.Fk, 01.50.Qb INTRODUCTION At the University of Colorado Boulder (CU), we are transforming our

Colorado at Boulder, University of

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

MAP TRANSFORMATIONS OF GEOGRAPHIC SPACE WALDO RUDOLPH TOBLER  

E-Print Network [OSTI]

MAP TRANSFORMATIONS OF GEOGRAPHIC SPACE by WALDO RUDOLPH TOBLER A thesis submitted in partial. If the transformations were dependent only on a factor of proportionality, as in the conversion from miles to kilometers relations, just as isometric transformations of a spherical surface to a plane are not possible. Maps

Tobler, Waldo

442

Transformation of spatial and perturbation derivatives of travel time  

E-Print Network [OSTI]

Transformation of spatial and perturbation derivatives of travel time at a general interface and perturbation parameters. We derive the explicit equations for transforming these travel­time derivatives Hamiltonian function and are applicable to the transformation of travel­time derivatives in both isotropic

Cerveny, Vlastislav

443

Finite anticanonical transformations in field-antifield formalism  

E-Print Network [OSTI]

We study the role of arbitrary (finite) anticanonical transformations in the field-antifield formalism, and the gauge-fixing procedure based on the use of these transformations. Properties of generating functionals of Green functions subjected to finite anticanonical transformations are considered.

Batalin, Igor A; Tyutin, Igor V

2015-01-01T23:59:59.000Z

444

Finite anticanonical transformations in field-antifield formalism  

E-Print Network [OSTI]

We study the role of arbitrary (finite) anticanonical transformations in the field-antifield formalism, and the gauge-fixing procedure based on the use of these transformations. Properties of generating functionals of Green functions subjected to finite anticanonical transformations are considered.

Igor A. Batalin; Peter M. Lavrov; Igor V. Tyutin

2015-01-29T23:59:59.000Z

445

Wavelet Transforms --A Quick Study Ivan W. Selesnick  

E-Print Network [OSTI]

Wavelet Transforms -- A Quick Study Ivan W. Selesnick Polytechnic University Brooklyn, NY September. The wavelet transform has become a useful computational tool for a variety of signal and image processing applications. For example, the wavelet transform is useful for the compression of digital image files; smaller

Selesnick, Ivan

446

A Transformed Lagged Ensemble Forecasting Technique for Increasing Ensemble Size  

E-Print Network [OSTI]

A Transformed Lagged Ensemble Forecasting Technique for Increasing Ensemble Size Andrew. R.Lawrence@ecmwf.int #12;Abstract An ensemble-based data assimilation approach is used to transform old en- semble. The impact of the transformations are propagated for- ward in time over the ensemble's forecast period

Hansens, Jim

447

5 The Transformation of Policy Ideas: A Challenge for  

E-Print Network [OSTI]

103 5 The Transformation of Policy Ideas: A Challenge for Development Research Laurent Goetschel1 by Legro (2000) and exploring the conditions for the transformation of these col- lective policy ideas their expectations on transformation knowledge, from which they expect the greatest added value. While

Richner, Heinz

448

Assessing the reliability of linear dynamic transformer thermal modelling  

E-Print Network [OSTI]

Assessing the reliability of linear dynamic transformer thermal modelling X. Mao, D.J. Tylavsky and G.A. McCulla Abstract: Improving the utilisation of transformers requires that the hot-spot and top. An alternative method for assessing transformer model reliability is provided. 1 Introduction The maximally

449

Robust Policies for the Transformer Acquisition and Allocation Problem  

E-Print Network [OSTI]

Robust Policies for the Transformer Acquisition and Allocation Problem Johannes Enders Department and allocation of high-voltage transformers over time. We analyze PJM's transmission system by simulating associated with transformer failures and replacements. #12;1 Introduction The replacement of the high

Powell, Warren B.

450

Ecological Modelling 192 (2006) 143159 Nitrogen transformation and transport modeling  

E-Print Network [OSTI]

model; Transformation; Transport; Nitrification; Denitrification; RT3D 1. Introduction Nitrogen of this paper are to develop a nitro- gen transport and transformation model for saturated groundwater systemsEcological Modelling 192 (2006) 143­159 Nitrogen transformation and transport modeling

Clement, Prabhakar

451

Ratios of Helicity Amplitudes for Exclusive rho-0 Electroproduction  

E-Print Network [OSTI]

Exclusive rho^0-meson electroproduction is studied in the HERMES experiment, using a 27.6 GeV longitudinally polarized electron/positron beam and unpolarized hydrogen and deuterium targets in the kinematic region 0.5 GeV^2 \\rho_T), T_{01} (\\gamma^*_T --> \\rho_L), T_{10} (\\gamma^*_L --> \\rho_T), and T_{1-1} (\\gamma^*_{-T} -->\\rho_T) to T_{00} (\\gamma^*_L --> \\rho_L) are extracted from the data. For the unnatural-parity-exchange amplitude U_{11}, the ratio |U_{11}/T_{00}| is obtained. The Q^2 and t' dependences of these ratios are presented and compared with perturbative QCD predictions.

Airapetian, A; Akopov, Z; Aschenauer, E C; Augustyniak, W; Avakian, R; Avetissian, A; Avetisyan, E; Belostotski, S; Bianchi, N; Blok, H P; Borissov, A; Bowles, J; Bryzgalov, V; Burns, J; Capiluppi, M; Capitani, G P; Cisbani, E; Ciullo, G; Contalbrigo, M; Dalpiaz, P F; Deconinck, W; De Leo, R; De Nardo, L; De Sanctis, E; Diefenthaler, M; Di Nezza, P; Dueren, M; Ehrenfried, M; Elbakian, G; Ellinghaus, F; Fabbri, R; Fantoni, A; Felawka, L; Frullani, S; Gabbert, D; Gapienko, G; Gapienko, V; Garibaldi, F; Gavrilov, G; Gharibyan, V; Giordano, F; Gliske, S; Golembiovskaya, M; Hadjidakis, C; Hartig, M; Hasch, D; Hill, G; Hillenbrand, A; Hoek, M; Holler, Y; Hristova, I; Imazu, Y; Ivanilov, A; Jackson, H E; Jo, H S; Joosten, S; Kaiser, R; Karyan, G; Keri, T; Kinney, E; Kisselev, A; Kobayashi, N; Korotkov, V; Kozlov, V; Kravchenko, P; Krivokhijine, V G; Lagamba, L; Lamb, R; Lapikas, L; Lehmann, I; Lenisa, P; Linden-Levy, L A; Ruiz, A Lopez; Lorenzon, W; Lu, X -G; Lu, X -R; Ma, B -Q; Mahon, D; Makins, N C R; Manaenkov, S I; Manfre, L; Mao, Y; Marianski, B; de la Ossa, A Martinez; Marukyan, H; Miller, C A; Miyachi, Y; Movsisyan, A; Muccifora, V; Murray, M; Mussgiller, A; Nappi, E; Naryshkin, Y; Nass, A; Negodaev, M; Nowak, W -D; Pappalardo, L L; Perez-Benito, R; Pickert, N; Reimer, P E; Reolon, A R; Riedl, C; Rith, K; Rosner, G; Rostomyan, A; Rubin, J; Ryckbosch, D; Salomatin, Y; Sanftl, F; Schaefer, A; Schnell, G; Schueler, K P; Seitz, B; Shibata, T -A; Shutov, V; Stancari, M; Statera, M; Steffens, E; Steijger, J J M; Stinzing, F; Taroian, S; Terkulov, A; Trzcinski, A; Tytgat, M; Vandenbroucke, A; Van Haarlem, Y; Van Hulse, C; Veretennikov, D; Vikhrov, V; Vilardi, I; Wang, S; Yaschenko, S; Yen, S; Yu, W; Zihlmann, B; Zupranski, P

2010-01-01T23:59:59.000Z

452

Ratios of Helicity Amplitudes for Exclusive rho-0 Electroproduction  

E-Print Network [OSTI]

Exclusive rho^0-meson electroproduction is studied in the HERMES experiment, using a 27.6 GeV longitudinally polarized electron/positron beam and unpolarized hydrogen and deuterium targets in the kinematic region 0.5 GeV^2 \\rho_T), T_{01} (\\gamma^*_T --> \\rho_L), T_{10} (\\gamma^*_L --> \\rho_T), and T_{1-1} (\\gamma^*_{-T} -->\\rho_T) to T_{00} (\\gamma^*_L --> \\rho_L) are extracted from the data. For the unnatural-parity-exchange amplitude U_{11}, the ratio |U_{11}/T_{00}| is obtained. The Q^2 and t' dependences of these ratios are presented and compared with perturbative QCD predictions.

The HERMES Collaboration; A. Airapetian; N. Akopov; Z. Akopov; E. C. Aschenauer; W. Augustyniak; R. Avakian; A. Avetissian; E. Avetisyan; S. Belostotski; N. Bianchi; H. P. Blok; A. Borissov; J. Bowles; V. Bryzgalov; J. Burns; M. Capiluppi; G. P. Capitani; E. Cisbani; G. Ciullo; M. Contalbrigo; P. F. Dalpiaz; W. Deconinck; R. De Leo; L. De Nardo; E. De Sanctis; M. Diefenthaler; P. Di Nezza; M. Dueren; M. Ehrenfried; G. Elbakian; F. Ellinghaus; R. Fabbri; A. Fantoni; L. Felawka; S. Frullani; D. Gabbert; G. Gapienko; V. Gapienko; F. Garibaldi; G. Gavrilov; V. Gharibyan; F. Giordano; S. Gliske; M. Golembiovskaya; C. Hadjidakis; M. Hartig; D. Hasch; G. Hill; A. Hillenbrand; M. Hoek; Y. Holler; I. Hristova; Y. Imazu; A. Ivanilov; H. E. Jackson; H. S. Jo; S. Joosten; R. Kaiser; G. Karyan; T. Keri; E. Kinney; A. Kisselev; N. Kobayashi; V. Korotkov; V. Kozlov; P. Kravchenko; V. G. Krivokhijine; L. Lagamba; R. Lamb; L. Lapikas; I. Lehmann; P. Lenisa; L. A. Linden-Levy; A. Lopez Ruiz; W. Lorenzon; X. -G. Lu; X. -R. Lu; B. -Q. Ma; D. Mahon; N. C. R. Makins; S. I. Manaenkov; L. Manfre; Y. Mao; B. Marianski; A. Martinez de la Ossa; H. Marukyan; C. A. Miller; Y. Miyachi; A. Movsisyan; V. Muccifora; M. Murray; A. Mussgiller; E. Nappi; Y. Naryshkin; A. Nass; M. Negodaev; W. -D. Nowak; L. L. Pappalardo; R. Perez-Benito; N. Pickert; P. E. Reimer; A. R. Reolon; C. Riedl; K. Rith; G. Rosner; A. Rostomyan; J. Rubin; D. Ryckbosch; Y. Salomatin; F. Sanftl; A. Schaefer; G. Schnell; K. P. Schueler; B. Seitz; T. -A. Shibata; V. Shutov; M. Stancari; M. Statera; E. Steffens; J. J. M. Steijger; F. Stinzing; S. Taroian; A. Terkulov; A. Trzcinski; M. Tytgat; A. Vandenbroucke; Y. Van Haarlem; C. Van Hulse; D. Veretennikov; V. Vikhrov; I. Vilardi; S. Wang; S. Yaschenko; S. Yen; W. Yu; B. Zihlmann; P. Zupranski

2011-05-02T23:59:59.000Z

453

Beta-decay branching ratios of 62Ga  

E-Print Network [OSTI]

Beta-decay branching ratios of 62Ga have been measured at the IGISOL facility of the Accelerator Laboratory of the University of Jyvaskyla. 62Ga is one of the heavier Tz = 0, 0+ -> 0+ beta-emitting nuclides used to determine the vector coupling constant of the weak interaction and the Vud quark-mixing matrix element. For part of the experimental studies presented here, the JYFLTRAP facility has been employed to prepare isotopically pure beams of 62Ga. The branching ratio obtained, BR= 99.893(24)%, for the super-allowed branch is in agreement with previous measurements and allows to determine the ft value and the universal Ft value for the super-allowed beta decay of 62Ga.

A. Bey; B. Blank; G. Canchel; C. Dossat; J. Giovinazzo; I. Matea; V. Elomaa; T. Eronen; U. Hager; M. Hakala; A. Jokinen; A. Kankainen; I. Moore; H. Penttila; S. Rinta-Antila; A. Saastamoinen; T. Sonoda; J. Aysto; N. Adimi; G. De France; J. C. Thomas; G. Voltolini; T. Chaventr

2008-04-17T23:59:59.000Z

454

36 AUGUST | 2011 EnhancEd TurbinE  

E-Print Network [OSTI]

36 AUGUST | 2011 EnhancEd TurbinE PErformancE moniToring comPonEnTs of wind TurbinEs are affected by asymmetric loads, variable wind speeds, and se- vere weather conditions which cause wind turbines to change their states. A typical wind turbine under- goes various states during its daily operations. The wind turbine

Kusiak, Andrew

455

Radar antenna pointing for optimized signal to noise ratio.  

SciTech Connect (OSTI)

The Signal-to-Noise Ratio (SNR) of a radar echo signal will vary across a range swath, due to spherical wavefront spreading, atmospheric attenuation, and antenna beam illumination. The antenna beam illumination will depend on antenna pointing. Calculations of geometry are complicated by the curved earth, and atmospheric refraction. This report investigates optimizing antenna pointing to maximize the minimum SNR across the range swath.

Doerry, Armin Walter; Marquette, Brandeis [General Atomics Aeronautical Systems, Inc., San Diego, CA

2013-01-01T23:59:59.000Z

456

Dilepton to photon ratio, a viscometer of QGP  

E-Print Network [OSTI]

In the Israel-Stewart's 2nd order hydrodynamics, a viscous effect on dilepton emission from a QGP medium is investigated. Dileptons are strongly affected by QGP viscosity. Large invariant mass dileptons, due to their lower velocity, are less affected by viscosity than the low invariant mass dileptons. We also show that the ratio of photon to dilepton is sensitive to the viscosity and can serve as a viscometer for QGP.

Chaudhuri, A K

2012-01-01T23:59:59.000Z

457

Combustion engine variable compression ratio apparatus and method  

DOE Patents [OSTI]

An apparatus and method for varying a compression ratio of an engine having a block and a head mounted thereto. The apparatus and method includes a cylinder having a block portion and a head portion, a piston linearly movable in the block portion of the cylinder, a cylinder plug linearly movable in the head portion of the cylinder, and a valve located in the cylinder plug and operable to provide controlled fluid communication with the block portion of the cylinder.

Lawrence; Keith E. (Peoria, IL); Strawbridge, Bryan E. (Dunlap, IL); Dutart, Charles H. (Washington, IL)

2006-06-06T23:59:59.000Z

458

Formation of compressed flat electron beams with high transverse-emittance ratios  

SciTech Connect (OSTI)

Flat beamsbeams with asymmetric transverse emittanceshave important applications in novel light-source concepts and advanced-acceleration schemes and could possibly alleviate the need for damping rings in lepton colliders. Over the last decade, a flat beam generation technique based on the conversion of an angular-momentum-dominated beam was proposed and experimentally tested. In this paper we explore the production of compressed flat beams. We especially investigate and optimize the flat beam transformation for beams with substantial fractional energy spread. We use as a simulation example the photoinjector of Fermilabs Advanced Superconducting Test Accelerator. The optimizations of the flat beam generation and compression at Advanced Superconducting Test Accelerator were done via start-to-end numerical simulations for bunch charges of 3.2 nC, 1.0 nC, and 20 pC at ?37??MeV. The optimized emittances of flat beams with different bunch charges were found to be 0.25???m (emittance ratio is ?400), 0.13????m, 15 nm before compression, and 0.41???m, 0.20???m, 16 nm after full compression, respectively, with peak currents as high as 5.5 kA for a 3.2?nC flat beam. These parameters are consistent with requirements needed to excite wakefields in asymmetric dielectric-lined waveguides or produce significant photon flux using small-gap micro-undulators.

Zhu, J. [Fermilab; Institute of Fluid Physics, CAEP, China; Piot, P. [Northern Illinois University; Fermilab; Mihalcea, D. [Northern Illinois University; Prokop, C. R. [Northern Illinois University

2014-08-01T23:59:59.000Z

459

The use of carbon stable isotope ratios in drugs characterization  

SciTech Connect (OSTI)

Isotopic Ratio Mass Spectrometry (IRMS) is an effective toll to be used for drug product authentication. The isotopic composition could be used to assist in the differentiation between batches of drugs and assist in the identification of counterfeit materials on the market. Only two factors affect the isotopic ratios in pharmaceutical components: the isotopic composition of the raw materials and the synthetic processes performed upon them. Counterfeiting of pharmaceutical drugs threatens consumer confidence in drug products companies' economical well-being. In this preliminary study, the analyzed samples consist in two types of commercially available analgesics, which were purchases from Romanian pharmacies. Differences in ?{sup 13}C between batches from ?29.7 to ?31.6% were observed, demonstrating that this method can be used to differentiate among individual drug batches and subsequently identify counterfeits on the market. On the other hand, carbon isotopic ratios differences among producers were recorded, the variations being between ?31.3 to ?34.9% for the same type of analgesic, but from different manufactures.

Magdas, D. A., E-mail: gabriela.cristea@itim-cj.ro; Cristea, G., E-mail: gabriela.cristea@itim-cj.ro; Bot, A., E-mail: gabriela.cristea@itim-cj.ro; Mirel, V., E-mail: gabriela.cristea@itim-cj.ro [National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Str., 400293 Cluj-Napoca (Romania)

2013-11-13T23:59:59.000Z

460

The E2/M1 ratio in {Delta} photoproduction  

SciTech Connect (OSTI)

The properties of the transition from the nucleon to the {Delta}(1232) serve as a benchmark for models of nucleon structure. To first order, N {r_arrow} {Delta} photo-excitation is dominated by a simple M1 quark spin-flip transition. At higher order, small L = 2 components in the N and {Delta} wavefunctions allow this excitation to proceed via an electric quadrupole transition. Since Nucleon models differ greatly on the mechanisms used to generate these L = 2 components,, the ratio of E2/M1 transitions (EMR) provides a sensitive test for structure models. Here, new high-precision measurements of p({rvec {gamma}}, {pi}) and p({rvec {gamma}}, {gamma}) cross sections and beam asymmetries have been combined with other polarization ratios in a simultaneous analysis of both reactions. Compton scattering has provided two important new constraints on the photo-pion amplitude. The E2/M1 mixing ratio for the N {r_arrow} {Delta} transition extracted from this analysis is EMR = {minus}3.0% {+-} 0.3 (stat+sys) {+-} 0.2 (model).

Sandorfi, A.M. [Brookhaven National Lab., Upton, NY (United States). Physics Dept.; Blanpied, G. [Univ. of South Carolina, Columbia, SC (United States). Dept. of Physics; Blecher, M. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Physics Dept.] [and others; LEGS Collaboration

1997-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
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461

THE FUELING DIAGRAM: LINKING GALAXY MOLECULAR-TO-ATOMIC GAS RATIOS TO INTERACTIONS AND ACCRETION  

SciTech Connect (OSTI)

To assess how external factors such as local interactions and fresh gas accretion influence the global interstellar medium of galaxies, we analyze the relationship between recent enhancements of central star formation and total molecular-to-atomic (H{sub 2}/H I) gas ratios, using a broad sample of field galaxies spanning early-to-late type morphologies, stellar masses of 10{sup 7.2}-10{sup 11.2} M{sub Sun }, and diverse stages of evolution. We find that galaxies occupy several loci in a ''fueling diagram'' that plots H{sub 2}/H I ratio versus mass-corrected blue-centeredness, a metric tracing the degree to which galaxies have bluer centers than the average galaxy at their stellar mass. Spiral galaxies of all stellar masses show a positive correlation between H{sub 2}/H I ratio and mass-corrected blue-centeredness. When combined with previous results linking mass-corrected blue-centeredness to external perturbations, this correlation suggests a systematic link between local galaxy interactions and molecular gas inflow/replenishment. Intriguingly, E/S0 galaxies show a more complex picture: some follow the same correlation, some are quenched, and a distinct population of blue-sequence E/S0 galaxies (with masses below key scales associated with transitions in gas richness) defines a separate loop in the fueling diagram. This population appears to be composed of low-mass merger remnants currently in late- or post-starburst states, in which the burst first consumes the H{sub 2} while the galaxy center keeps getting bluer, then exhausts the H{sub 2}, at which point the burst population reddens as it ages. Multiple lines of evidence suggest connected evolutionary sequences in the fueling diagram. In particular, tracking total gas-to-stellar mass ratios within the fueling diagram provides evidence of fresh gas accretion onto low-mass E/S0s emerging from their central starburst episodes. Drawing on a comprehensive literature search, we suggest that virtually all galaxies follow the same evolutionary patterns found in our broad sample.

Stark, David V.; Kannappan, Sheila J.; Eckert, Kathleen D. [Physics and Astronomy Department, University of North Carolina, Chapel Hill, NC 27516 (United States); Wei, Lisa H. [Atmospheric and Environmental Research, 131 Hartwell Avenue, Lexington, MA 02421 (United States); Baker, Andrew J. [Department of Physics and Astronomy, Rutgers, the State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854 (United States); Leroy, Adam K. [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Vogel, Stuart N. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)

2013-05-20T23:59:59.000Z

462

E-Print Network 3.0 - arithmetic fourier transform Sample Search...  

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

fourier transform Search Powered by Explorit Topic List Advanced Search Sample search results for: arithmetic fourier transform Page: << < 1 2 3 4 5 > >> 1 Fast Fourier transform...

463

About new Inverse Formulas of the Transformation of Laplace,II.The Laplace transform and the potential of Newton  

E-Print Network [OSTI]

In article a new class of the odd ore even transforms of Laplace is presented. The class leads to some unforeseeable consequences in direction of the Fourier transforms.The potential of Newton as one of the form of the double Laplace transform is considered too.

A. V. Pavlov-Maxorin

2014-10-19T23:59:59.000Z

464

Enhanced membrane gas separations  

SciTech Connect (OSTI)

An improved membrane gas separation process is described comprising: (a) passing a feed gas stream to the non-permeate side of a membrane system adapted for the passage of purge gas on the permeate side thereof, and for the passage of the feed gas stream in a counter current flow pattern relative to the flow of purge gas on the permeate side thereof, said membrane system being capable of selectively permeating a fast permeating component from said feed gas, at a feed gas pressure at or above atmospheric pressure; (b) passing purge gas to the permeate side of the membrane system in counter current flow to the flow of said feed gas stream in order to facilitate carrying away of said fast permeating component from the surface of the membrane and maintaining the driving force for removal of the fast permeating component through the membrane from the feed gas stream, said permeate side of the membrane being maintained at a subatmospheric pressure within the range of from about 0.1 to about 5 psia by vacuum pump means; (c) recovering a product gas stream from the non-permeate side of the membrane; and (d) discharging purge gas and the fast permeating component that has permeated the membrane from the permeate side of the membrane, whereby the vacuum conditions maintained on the permeate side of the membrane by said vacuum pump means enhance the efficiency of the gas separation operation, thereby reducing the overall energy requirements thereof.

Prasad, R.

1993-07-13T23:59:59.000Z

465

Enhanced Micellar Catalysis LDRD.  

SciTech Connect (OSTI)

The primary goals of the Enhanced Micellar Catalysis project were to gain an understanding of the micellar environment of DF-200, or similar liquid CBW surfactant-based decontaminants, as well as characterize the aerosolized DF-200 droplet distribution and droplet chemistry under baseline ITW rotary atomization conditions. Micellar characterization of limited surfactant solutions was performed externally through the collection and measurement of Small Angle X-Ray Scattering (SAXS) images and Cryo-Transmission Electron Microscopy (cryo-TEM) images. Micellar characterization was performed externally at the University of Minnesota's Characterization Facility Center, and at the Argonne National Laboratory Advanced Photon Source facility. A micellar diffusion study was conducted internally at Sandia to measure diffusion constants of surfactants over a concentration range, to estimate the effective micelle diameter, to determine the impact of individual components to the micellar environment in solution, and the impact of combined components to surfactant phase behavior. Aerosolized DF-200 sprays were characterized for particle size and distribution and limited chemical composition. Evaporation rates of aerosolized DF-200 sprays were estimated under a set of baseline ITW nozzle test system parameters.

Betty, Rita G.; Tucker, Mark David; Taggart, Gretchen; Kinnan, Mark K.; Glen, Crystal Chanea; Rivera, Danielle; Sanchez, Andres; Alam, Todd Michael

2012-12-01T23:59:59.000Z

466

Enhanced local tomography  

DOE Patents [OSTI]

Local tomography is enhanced to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. In a first method for evaluating the value of the discontinuity, the relative attenuation data is inputted to a local tomography function .function..sub..LAMBDA. to define the location S of the density discontinuity. The asymptotic behavior of .function..sub..LAMBDA. is determined in a neighborhood of S, and the value for the discontinuity is estimated from the asymptotic behavior of .function..sub..LAMBDA.. In a second method for evaluating the value of the discontinuity, a gradient value for a mollified local tomography function .gradient..function..sub..LAMBDA..epsilon. (x.sub.ij) is determined along the discontinuity; and the value of the jump of the density across the discontinuity curve (or surface) S is estimated from the gradient values.

Katsevich, Alexander J. (Los Alamos, NM); Ramm, Alexander G. (Manhattan, KS)

1996-01-01T23:59:59.000Z

467

Transformer design and application considerations for nonsinusoidal load currents  

SciTech Connect (OSTI)

The use of adjustable-speed drives requires transformers capable of withstanding high levels of harmonic currents under normal operating conditions. Experience has been that overheating problems are much more common with dry-type transformers than with liquid-filled transformers. Transformer insulation life is determined by the hot spot temperature but confirmation of hot spot temperature rise is one performance characteristic which is ignored in industry standards. This is especially important for transformers rated for nonsinusoidal load currents. Hot spot allowances used in IEEE standards for ventilated dry-type transformers were developed in 1944 and recent data indicates that revisions are required. The design of transformers for nonsinusoidal load currents should include an analysis of the eddy loss distribution in the windings and calculation of the hot spot temperature rise. Calculations and thermal tests giving only average winding temperature rises are not sufficient. Thermal tests with nonsinusoidal currents and measurements of hot spot temperature rises are extremely difficult on large transformers. The combination of testing and analysis may be the only economically practical approach. Analysis indicates that the dry type transformer hot spot temperature is very sensitive to the eddy loss magnitude and distribution. The Underwriters Laboratories Inc. (UL) K-factor rated dry type transformer and the recommended practices given in ANSI/IEEE C57.110 are reviewed. When purchasing transformers subject to nonsinusoidal load currents, considerations should be given to the manufacturer`s development program and capability to calculate the eddy loss distribution and hot spot temperatures.

Pierce, L.W. [General Electric Co., Rome, GA (United States)] [General Electric Co., Rome, GA (United States)

1996-05-01T23:59:59.000Z

468

An informal introduction to program transformation  

SciTech Connect (OSTI)

In the summer of 1992, I had the opportunity to participate in a Faculty Research Program, at Argonne National Laboratory. During that time I came in contact with some developments in computer science that were unfamiliar to me as a mathematician. Since most mathematicians have some exposure to computers, but certainly are not computer scientists, I felt it was appropriate to write a paper summarizing my introduction to program transformation. This paper is not meant to be a full explanation of the topic, but an informal introduction for the ``mathematical layman.``

Hopkins, K.W. [Southwest Baptist Univ., Bolivar, MO (United States)

1994-08-01T23:59:59.000Z

469

Phase Transformations in Cast Duplex Stainless Steels  

SciTech Connect (OSTI)

Duplex stainless steels (DSS) constitute both ferrite and austenite as a matrix. Such a microstructure confers a high corrosion resistance with favorable mechanical properties. However, intermetallic phases such as {sigma} and {chi} can also form during casting or high-temperature processing and can degrade the properties of the DSS. This research was initiated to develop time-temperature-transformation (TTT) and continuous-cooling-transformation (CCT) diagrams of two types of cast duplex stainless steels, CD3MN (Fe-22Cr-5Ni-Mo-N) and CD3MWCuN (Fe-25Cr-7Ni-Mo-W-Cu-N), in order to understand the time and temperature ranges for intermetallic phase formation. The alloys were heat treated isothermally or under controlled cooling conditions and then characterized using conventional metallographic methods that included tint etching, and also using electron microscopy (SEM, TEM) and wavelength dispersive spectroscopy (WDS). The kinetics of intermetallic-phase ({sigma} + {chi}) formation were analyzed using the Johnson-Mehl-Avrami (MA) equation in the case of isothermal transformations and a modified form of this equation in the case of continuous cooling transformations. The rate of intermetallic-phase formation was found to be much faster in CD3MWCuN than CD3MN due mainly to differences in the major alloying contents such as Cr, Ni and Mo. To examine in more detail the effects of these elements of the phase stabilities; a series of eight steel castings was designed with the Cr, Ni and Mo contents systematically varied with respect to the nominal composition of CD3MN. The effects of varying the contents of alloying additions on the formation of intermetallic phases were also studied computationally using the commercial thermodynamic software package, Thermo-Calc. In general, {sigma} was stabilized with increasing Cr addition and {chi} by increasing Mo addition. However, a delicate balance among Ni and other minor elements such as N and Si also exists. Phase equilibria in DSS can be affected by local composition fluctuations in the cast alloy. This may cause discrepancy between thermodynamic prediction and experimental observation.

Yoon-Jun Kim

2004-12-19T23:59:59.000Z

470

Transforming the U.S. Energy Infrastructure  

SciTech Connect (OSTI)

The U.S. energy infrastructure is among the most reliable, accessible and economic in the world. On the other hand, the U.S. energy infrastructure is excessively reliant on foreign sources of energy, experiences high volatility in energy prices, does not practice good stewardship of finite indigenous energy resources and emits significant quantities of greenhouse gases (GHG). This report presents a Technology Based Strategy to achieve a full transformation of the U.S. energy infrastructure that corrects these negative factors while retaining the positives.

Larry Demick

2010-07-01T23:59:59.000Z

471

Sandia National Laboratories: Past Market Transformation Activities  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLSMolten-SaltReliabilityIntroduction of Prof.TransformationPast

472

Sandia National Laboratories: Solar Market Transformation  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErikGroundbreaking WorkTransformationSitingMolten Salt TestGlare

473

Transformational advances in knowledge and technology come  

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

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 Delicious Rank EERE:YearRound-Up from theDepartment of EnergyThe Sun andDepartmentTransformational advances in

474

Transformer current sensor for superconducting magnetic coils  

DOE Patents [OSTI]

The present invention is a current transformer for operating currents larger than 2kA (two kiloamps) that is capable of detecting a millivolt level resistive voltage in the presence of a large inductive voltage. Specifically, the present invention includes substantially cylindrical primary turns arranged to carry a primary current and substantially cylindrical secondary turns arranged coaxially with and only partially within the primary turns, the secondary turns including an active winding and a dummy winding, the active and dummy windings being coaxial, longitudinally separated and arranged to mutually cancel voltages excited by commonly experienced magnetic fields, the active winding but not the dummy winding being arranged within the primary turns.

Shen, S.S.; Wilson, C.T.

1985-04-16T23:59:59.000Z

475

Quantum Optical Version of Classical Optical Transformations and Beyond  

E-Print Network [OSTI]

By the newly developed technique of integration within an ordered product (IWOP) of operators, we explore quantum optical version of classical optical transformations such as optical Fresnel transform, Hankel transform, fractional Fourier transform, Wigner transform, wavelet transform and Fresnel-Hadmard combinatorial transform etc. In this way one may gain benefit for developing classical optics theory from the research in quantum optics, or vice-versa. We can not only find some new quantum mechanical unitary operators which correspond to the known optical transformations, deriving a new theorem for calculating quantum tomogram of density operators, but also can reveal some new classical optical transformations. We derive GFO's normal product form and its canonical coherent state representation and find that GFO is the loyal representation of symplectic group multiplication rule. We show that GFT is just the transformation matrix element of GFO in the coordinate representation such that two successive GFTs is still a GFT. The ABCD rule of the Gaussian beam propagation is directly demonstrated in the context of quantum optics. Especially, the introduction of quantum mechanical entangled state representations opens up a new area to finding new classical optical transformations. The complex wavelet transform and the condition of mother wavelet are studied in the context of quantum optics too. Throughout our discussions, the coherent state, the entangled state representation of the two-mode squeezing operators and the IWOP technique are fully used. All these confirms Dirac's assertion: " ... for a quantum dynamic system that has a classical analogue, unitary transformation in the quantum theory is the analogue of contact transformation in the classical theory".

Hong-yi Fan; Li-yun Hu

2010-10-03T23:59:59.000Z

476

air-fuel ratio control: Topics by E-print Network  

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

was performed to investigate the effects of air-fuel ratio, inlet boost pressure, hydrogen rich fuel reformate, and compression ratio on engine knock behavior. For each...

477

E-Print Network 3.0 - abundance ratio measurements Sample Search...  

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

O) coronal and transition region measurements of NeO ratio significantly higher... temperature independent emission line ratios - direct measurement of relative abundances use...

478

Epithelialmesenchymal transition during oncogenic transformation induced by hexavalent chromium involves reactive oxygen species-dependent mechanism in lung epithelial cells  

SciTech Connect (OSTI)

Hexavalent chromium [Cr(VI)] is an important human carcinogen associated with pulmonary diseases and lung cancer. Exposure to Cr(VI) induces DNA damage, cell morphological change and malignant transformation in human lung epithelial cells. Despite extensive studies, the molecular mechanisms remain elusive, it is also not known if Cr(VI)-induced transformation might accompany with invasive properties to facilitate metastasis. We aimed to study Cr(VI)-induced epithelialmesenchymal transition (EMT) and invasion during oncogenic transformation in lung epithelial cells. The results showed that Cr(VI) at low doses represses E-cadherin mRNA and protein expression, enhances mesenchymal marker vimentin expression and transforms the epithelial cell into fibroblastoid morphology. Cr(VI) also increases cell invasion and promotes colony formation. Further studies indicated that Cr(VI) uses multiple mechanisms to repress E-cadherin expression, including activation of E-cadherin repressors such as Slug, ZEB1, KLF8 and enhancement the binding of HDAC1 in E-cadherin gene promoter, but DNA methylation is not responsible for the loss of E-cadherin. Catalase reduces Cr(VI)-induced E-cadherin and vimentin protein expression, attenuates cell invasion in matrigel and colony formation on soft agar. These results demonstrate that exposure to a common human carcinogen, Cr(VI), induces EMT and invasion during oncogenic transformation in lung epithelial cells and implicate in cancer metastasis and prevention. - Graphical abstract: Epithelialmesenchymal transition during oncogenic transformation induced by hexavalent chromium involves reactive oxygen species-dependent mechanisms in lung epithelial cells. - Highlights: We study if Cr(VI) might induce EMT and invasion in epithelial cells. Cr(VI) induces EMT by altering E-cadherin and vimentin expression. It also increases cell invasion and promotes oncogenic transformation. Catalase reduces Cr(VI)-induced EMT, invasion and transformation.

Ding, Song-Ze, E-mail: dingsongze@hotmail.com [Department of Internal Medicine, Henan Provincial Peoples Hospital, Zhengzhou University, Wei-Wu Road, Zhengzhou, Henan 450000 (China); Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, KY 40536 (United States); Yang, Yu-Xiu; Li, Xiu-Ling [Department of Internal Medicine, Henan Provincial Peoples Hospital, Zhengzhou University, Wei-Wu Road, Zhengzhou, Henan 450000 (China); Michelli-Rivera, Audrey [Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, KY 40536 (United States); Han, Shuang-Yin [Department of Internal Medicine, Henan Provincial Peoples Hospital, Zhengzhou University, Wei-Wu Road, Zhengzhou, Henan 450000 (China); Wang, Lei; Pratheeshkumar, Poyil; Wang, Xin; Lu, Jian; Yin, Yuan-Qin; Budhraja, Amit; Hitron, Andrew J. [Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, KY 40536 (United States)

2013-05-15T23:59:59.000Z

479

Separated Response Function Ratios in Exclusive, Forward pi^{+/-} Electroproduction  

E-Print Network [OSTI]

The study of exclusive $\\pi^{\\pm}$ electroproduction on the nucleon, including separation of the various structure functions, is of interest for a number of reasons. The ratio $R_L=\\sigma_L^{\\pi^-}/\\sigma_L^{\\pi^+}$ is sensitive to isoscalar contamination to the dominant isovector pion exchange amplitude, which is the basis for the determination of the charged pion form factor from electroproduction data. A change in the value of $R_T=\\sigma_T^{\\pi^-}/\\sigma_T^{\\pi^+}$ from unity at small $-t$, to 1/4 at large $-t$, would suggest a transition from coupling to a (virtual) pion to coupling to individual quarks. Furthermore, the mentioned ratios may show an earlier approach to pQCD than the individual cross sections. We have performed the first complete separation of the four unpolarized electromagnetic structure functions above the dominant resonances in forward, exclusive $\\pi^{\\pm}$ electroproduction on the deuteron at central $Q^2$ values of 0.6, 1.0, 1.6 GeV$^2$ at $W$=1.95 GeV, and $Q^2=2.45$ GeV$^2$ at $W$=2.22 GeV. Here, we present the $L$ and $T$ cross sections, with emphasis on $R_L$ and $R_T$, and compare them with theoretical calculations. Results for the separated ratio $R_L$ indicate dominance of the pion-pole diagram at low $-t$, while results for $R_T$ are consistent with a transition between pion knockout and quark knockout mechanisms.

G. M. Huber; H. P. Blok; C. Butuceanu; D. Gaskell; T. Horn; D. J. Mack; D. Abbott; K. Aniol; H. Anklin; C. Armstrong; J. Arrington; K. Assamagan; S. Avery; O. K. Baker; B. Barrett; E. J. Beise; C. Bochna; W. Boeglin; E. J. Brash; H. Breuer; C. C. Chang; N. Chant; M. E. Christy; J. Dunne; T. Eden; R. Ent; H. Fenker; E. F. Gibson; R. Gilman; K. Gustafsson; W. Hinton; R. J. Holt; H. Jackson; S. Jin; M. K. Jones; C. E. Keppel; P. H. Kim; W. Kim; P. M. King; A. Klein; D. Koltenuk; V. Kovaltchouk; M. Liang; J. Liu; G. J. Lolos; A. Lung; D. J. Margaziotis; P. Markowitz; A. Matsumura; D. McKee; D. Meekins; J. Mitchell; T. Miyoshi; H. Mkrtchyan; B. Mueller; G. Niculescu; I. Niculescu; Y. Okayasu; L. Pentchev; C. Perdrisat; D. Pitz; D. Potterveld; V. Punjabi; L. M. Qin; P. E. Reimer; J. Reinhold; J. Roche; P. G. Roos; A. Sarty; I. K. Shin; G. R. Smith; S. Stepanyan; L. G. Tang; V. Tadevosyan; V. Tvaskis; R. L. J. van der Meer; K. Vansyoc; D. Van Westrum; S. Vidakovic; J. Volmer; W. Vulcan; G. Warren; S. A. Wood; C. Xu; C. Yan; W. -X. Zhao; X. Zheng; B. Zihlmann

2014-04-15T23:59:59.000Z

480

Fluid flow control with transformation media  

E-Print Network [OSTI]

We introduce a new concept for the manipulation of fluid flow around three-dimensional bodies. Inspired by transformation optics, the concept is based on a mathematical idea of coordinate transformations, and physically implemented with anisotropic porous media permeable to the flow of fluids. In two different situations - for an impermeable object situated either in a free-flowing fluid or in a fluid-filled porous medium - we show that the object can be coated with a properly chosen inhomogeneous, anisotropic permeable medium, such as to preserve the streamlines of flow and the pressure distribution that would have existed in the absence of the object. The proposed fluid flow cloak completely eliminates any disturbance of the flow by the object, including the downstream wake. Consequently, the structure helps prevent the onset of turbulence by keeping the flow laminar even above the typical critical Reynolds number for the object of the same shape and size. The cloak also cancels the viscous drag force. This...

Urzhumov, Yaroslav A

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transformer ratio enhancement" from the National Library of EnergyBeta (NLEBeta).
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481

Phase transformations in Cu-Zr multilayers  

SciTech Connect (OSTI)

A study of phase transformations is reported for Cu-rich, Cu-Zr multilayer foils synthesized using magnetron sputter deposition and annealed using a differential scanning calorimeter. The foils range in composition from 1.6 to 9.0 at% Zr and consist of alternate layers of polycrystalline Cu and Zr. Differential scanning calorimetry, X-ray analysis and electron microscopy were used to three distinct reactions in the foils: a mixing and an amorphization of the Cu and die Zr, a crystallization on of this amorphous phase to the metastable intermetallic Cu{sub 5l}Zr{sub l4}, and a transformation of the Cu{sub 5l}Zr{sub l4} phase into the equilibrium phase Cu{sub 9}Zr{sub 2}. The as-deposited layering remained stable during the first two reactions and then broke down in the third reaction as large grains of Cu{sub 9}Zr{sub 2} encompassed the smaller Cu grains. Heats of the reactions and activation energies of these reactions are measured and are compared to values reported for bulk samples. The measured heats provide evidence that amorphous Cu-Zr alloys phase separate and that mixing and short range ordering produce 3.5 times more heat than long range ordering produces when Ca and Zr react and form Cu{sub 5l}Zr{sub l4}.

Weihs, T.P.; Barbee, T.W. Jr.; Wall, M.A.

1993-04-01T23:59:59.000Z

482

Poisson's Ratio and the Densification of Glass under High Pressure  

SciTech Connect (OSTI)

Because of a relatively low atomic packing density, (C{sub g}) glasses experience significant densification under high hydrostatic pressure. Poisson's ratio ({nu}) is correlated to C{sub g} and typically varies from 0.15 for glasses with low C{sub g} such as amorphous silica to 0.38 for close-packed atomic networks such as in bulk metallic glasses. Pressure experiments were conducted up to 25 GPa at 293 K on silica, soda-lime-silica, chalcogenide, and bulk metallic glasses. We show from these high-pressure data that there is a direct correlation between {nu} and the maximum post-decompression density change.

Rouxel, T.; Ji, H. [Applied Mechanics Laboratory of the University of Rennes 1, LARMAUR, Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes cedex (France); Hammouda, T. [Laboratoire Magmas et Volcans, CNRS-OPG , Universite Blaise Pascal, 5 rue Kessler, 63038 Clermont-Ferrand cedex (France); Moreac, A. [IPR, CNRS-Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes cedex (France)

2008-06-06T23:59:59.000Z

483

Method for producing thin graphite flakes with large aspect ratios  

DOE Patents [OSTI]

A method for making graphite flakes of high aspect ratio by the steps of providing a strong concentrated acid and heating the graphite in the presence of the acid for a time and at a temperature effective to intercalate the acid in the graphite; heating the intercalated graphite at a rate and to a temperature effective to exfoliate the graphite in discrete layers; subjecting the graphite layers to ultrasonic energy, mechanical shear forces, or freezing in an amount effective to separate the layes into discrete flakes.

Bunnell, L. Roy (Kennewick, WA)

1993-01-01T23:59:59.000Z

484

Quick Estimate of IRR From Capital Estimate Ratios  

E-Print Network [OSTI]

assumptions, as A useful factor can be calculated from the Net Present Values calculated above. The ratio of the Net Present Values gives the so call "Investment Equivalent of a unit of Savings," thus: $2332/$821 = $2.84 Capital/$l of Revenue...(Saving) If 15% (the assumption for discount rate, see Table I) is the minimum acceptable average earnings rate ("Hurdle rate") for a company, then the Investment Equivalent calculated above can be interpreted to mean: "The maximum among or Capital...

Larson, R. J.

485

Probability Tables for Mendelian Ratios with Small Numbers.  

E-Print Network [OSTI]

-called ex- Total ...-...-..-..-....-.--. .9999 pected may lead to error in interpretation rather than serving as a valuable aid as it does with large numbers. Examples with other small numbers could be given, but this should iIIustrate the points... is set off so as to show the point beyond which the total probability in that direction is .0050 or less. Mendelian Ratios Combi- 1 130 121 112 10 3 9 4 8 5 7 6 6 7 5 8 4 9 3 10 2 11 .On95 0028 .O002 .. -- I ---- - 1 12 .0016 .0004...

Warwick, B. L. (Bruce L.)

1932-01-01T23:59:59.000Z

486

Table E7.1. Consumption Ratios of Fuel, 1998  

U.S. Energy Information Administration (EIA) Indexed Site

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 FuelsTotal" (Percent) Type: Sulfur Content API Gravity Period: Monthly Annual Download Series History71.7 588.51 "1. Consumption Ratios of

487

Study of phase transformation and crystal structure for 1D carbon-modified titania ribbons  

SciTech Connect (OSTI)

One-dimensional hydrogen titanate ribbons were successfully prepared with hydrothermal reaction in a highly basic solution. A series of one-dimensional carbon-modified TiO{sub 2} ribbons were prepared via calcination of the mixture of hydrogen titanate ribbons and sucrose solution under N{sub 2} flow at different temperatures. The phase transformation process of hydrogen titanate ribbons was investigated by in-situ X-ray diffraction at various temperatures. Besides, one-dimensional carbon-modified TiO{sub 2} ribbons calcined at different temperatures were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, nitrogen adsorption isotherms, diffuse reflectance ultravioletvisible spectroscopy, and so on. Carbon-modified TiO{sub 2} ribbons showed one-dimensional ribbon crystal structure and various crystal phases of TiO{sub 2}. After being modified with carbon, a layer of uniform carbon film was coated on the surface of TiO{sub 2} ribbons, which improved their adsorption capacity for methyl orange as a model organic pollutant. One-dimensional carbon-modified TiO{sub 2} ribbons also exhibited enhanced visible-light absorbance with the increase of calcination temperatures. - Highlights: The synthesis of 1D carbon-modified TiO{sub 2} ribbons. The phase transformation of 1D carbon-modified TiO{sub 2} ribbons. 1D carbon-modified TiO{sub 2} exhibites enhanced visible-light absorbance.

Zhou, Lihui, E-mail: lhzhou@ecust.edu.cn; Zhang, Fang; Li, Jinxia

2014-02-15T23:59:59.000Z

488

FPGA FFT(Fast Fourier Transform) 1 FPGA FFT(Fast Fourier Transform)  

E-Print Network [OSTI]

trade-offs using high-level performance estimation to obtain energy-efficient designs. We implemented Seon-il Choi Gokul Govindu Viktor K. Prasanna ABSTRACT In this paper, we develop energy efficient designs for the Fast Fourier Transform (FFT) on FPGAs. Architectures for FFT on FPGAs are designed

Jang, Ju-Wook

489

Fuel Transformer Solid Oxide Fuel Cell  

SciTech Connect (OSTI)

The following report documents the technical approach and conclusions made by Acumentrics Corporation during latest budget period toward the development of a low cost 10kW tubular SOFC power system. The present program, guided under direction from the National Energy Technology Laboratory of the US DOE, is a nine-year cost shared Cooperative Agreement totaling close to $74M funded both by the US DOE as well as Acumentrics Corporation and its partners. The latest budget period ran from January of 2006 through June 2006. Work focused on cell technology enhancements as well as BOP and power electronics improvements and overall system design. Significant progress was made in increasing cell power enhancements as well as decreasing material cost in a drive to meet the SECA cost targets. The following report documents these accomplishments in detail as well as the layout plans for further progress in next budget period.

Norman Bessette; Douglas S. Schmidt; Jolyon Rawson; Rhys Foster; Anthony Litka

2006-07-27T23:59:59.000Z

490

FUEL TRANSFORMER SOLID OXIDE FUEL CELL  

SciTech Connect (OSTI)

The following report documents the technical approach and conclusions made by Acumentrics Corporation during latest budget period toward the development of a low cost 10kW tubular SOFC power system. The present program, guided under direction from the National Energy Technology Laboratory of the US DOE, is a nine-year cost shared Cooperative Agreement totaling close to $74M funded both by the US DOE as well as Acumentrics Corporation and its partners. The latest budget period ran from July of 2004 through January 2004. Work was focused on cell technology enhancements as well as BOP and power electronics improvements and overall system design. Significant progress was made in increasing cell power enhancements as well as decreasing material cost in a drive to meet the SECA cost targets. The following report documents these accomplishments in detail as well as the lay out plans for further progress in next budget period.

Norman Bessette; Douglas S. Schmidt; Jolyon Rawson; Lars Allfather; Anthony Litka

2005-03-24T23:59:59.000Z

491

Fuel Transformer Solid Oxide Fuel Cell  

SciTech Connect (OSTI)

The following report documents the technical approach and conclusions made by Acumentrics Corporation during latest budget period toward the development of a low cost 10kW tubular SOFC power system. The present program, guided under direction from the National Energy Technology Laboratory of the US DOE, is a nine-year cost shared Cooperative Agreement totaling close to $74M funded both by the US DOE as well as Acumentrics Corporation and its partners. The latest budget period ran from January of 2005 through June 2005. Work focused on cell technology enhancements as well as BOP and power electronics improvements and overall system design. Significant progress was made in increasing cell power enhancements as well as decreasing material cost in a drive to meet the SECA cost targets. The following report documents these accomplishments in detail as well as the layout plans for further progress in next budget period.

Norman Bessette; Douglas S. Schmidt; Jolyon Rawson; Lars Allfather; Anthony Litka

2005-08-01T23:59:59.000Z

492

Fuel Transformer Solid Oxide Fuel Cell  

SciTech Connect (OSTI)

The following report documents the technical approach and conclusions made by Acumentrics Corporation during latest budget period toward the development of a low cost 10kW tubular SOFC power system. The present program, guided under direction from the National Energy Technology Laboratory of the US DOE, is a nine-year cost shared Cooperative Agreement totaling close to $74M funded both by the US DOE as well as Acumentrics Corporation and its partners. The latest budget period ran from July of 2005 through December 2005. Work focused on cell technology enhancements as well as BOP and power electronics improvements and overall system design. Significant progress was made in increasing cell power enhancements as well as decreasing material cost in a drive to meet the SECA cost targets. The following report documents these accomplishments in detail as well as the layout plans for further progress in next budget period.

Norman Bessette; Douglas S. Schmidt; Jolyon Rawson; Rhys Foster; Anthony Litka

2007-01-27T23:59:59.000Z

493

Calculation and Verification of a Planar Pencil Beam Kernel Through the Hankel Transform of Measured OARs for a Radiosurgery System with Cones  

SciTech Connect (OSTI)

A planar multienergetic pencil beam kernel with rotational symmetry is calculated for a stereotactic radiosurgery system, SRS, BrainLAB with cones, employing the deconvolution method of the off axis ratio profile, OAR, corresponding to the cone of 35 mm in diameter for a 6 MV photon beam produced by a linear accelerator Varian 2100 C/D. Before the deconvolution, the experimental OAR is corrected for beam divergence and variations of the spectral fluence {Phi}, using a boundary function BF. The function BF and the fluence {Phi} are transformed to the conjugate space with the zero order Hankel function, which is the appropriate transform due to the radial symmetry of the circular beams generated by the cones. The kernel in the conjugate space is obtained as the ratio of the transform of BF to the transform of {Phi}, therefore the kernel in the real space is calculated as the inverse transform of the kernel in the conjugate space. To validate the kernel in the real space, it is convolved with the fluence of the cones of 7.5, 12.5, 15, 17.5, 20, 22.5, 25, 30 and 35 mm in diameter. The comparison of the OARs calculated and measured shows a maximum difference of 4.5% in the zones of high gradient of dose, and a difference less than 2% in the regions of low gradient of dose. Finally, the expanded uncertainty of the kernel is estimated and reported.

Vargas Verdesoto, Milton X. [Centro Oncologico de Chihuahua, Hacienda de la Esperanza 6304, Chihuahua, Chihuahua (Mexico); Alvarez Romero, Jose T. [SSDL, Departamento de Metrologia de Radiaciones Ionizantes, Instituto Nacional de Investigaciones Nucleares, La Marquesa, Ocoyoacac, Estado de Mexico 52750 (Mexico)

2010-12-07T23:59:59.000Z

494

Spent fuel sabotage aerosol ratio program : FY 2004 test and data summary.  

SciTech Connect (OSTI)

This multinational, multi-phase spent fuel sabotage test program is quantifying the aerosol particles produced when the products of a high energy density device (HEDD) interact with and explosively particulate test rodlets that contain pellets of either surrogate materials or actual spent fuel. This program has been underway for several years. This program provides data that are relevant to some sabotage scenarios in relation to spent fuel transport and storage casks, and associated risk assessments. The program also provides significant technical and political benefits in international cooperation. We are quantifying the Spent Fuel Ratio (SFR), the ratio of the aerosol particles released from HEDD-impacted actual spent fuel to the aerosol particles produced from surrogate materials, measured under closely matched test conditions, in a contained test chamber. In addition, we are measuring the amounts, nuclide content, size distribution of the released aerosol materials, and enhanced sorption of volatile fission product nuclides onto specific aerosol particle size fractions. These data are the input for follow-on modeling studies to quantify respirable hazards, associated radiological risk assessments, vulnerability assessments, and potential cask physical protection design modifications. This document includes an updated description of the test program and test components for all work and plans made, or revised, during FY 2004. It also serves as a program status report as of the end of FY 2004. All available test results, observations, and aerosol analyses plus interpretations--primarily for surrogate material Phase 2 tests, series 2/5A through 2/9B, using cerium oxide sintered ceramic pellets are included. Advanced plans and progress are described for upcoming tests with unirradiated, depleted uranium oxide and actual spent fuel test rodlets. This spent fuel sabotage--aerosol test program is coordinated with the international Working Group for Sabotage Concerns of Transport and Storage Casks (WGSTSC) and supported by both the U.S. Department of Energy and the Nuclear Regulatory Commission.

Brucher, Wenzel (Gesellschaft fur Anlagen- und Reaktorsicherheit, Germany); Koch, Wolfgang (Fraunhofer Institut fur Toxikologie und Experimentelle Medizin, Germany); Pretzsch, Gunter Guido (Gesellschaft fur Anlagen- und Reaktorsicherheit, Germany); Loiseau, Olivier (Institut de Radioprotection et de Surete Nucleaire, France); Mo, Tin (U.S. Nuclear Regulatory Commission, Washington, DC); Billone, Michael C. (Argonne National Laboratory, Argonne, IL); Autrusson, Bruno A. (Institut de Radioprotection et de Surete Nucleaire, France); Young, F. I. (U.S. Nuclear Regulatory Commission, Washington, DC); Coats, Richard Lee; Burtseva, Tatiana (Argonne National Laboratory, Argonne, IL); Luna, Robert Earl; Dickey, Roy R.; Sorenson, Ken Bryce; Nolte, Oliver (Fraunhofer Institut fur Toxikologie und Experimentelle Medizin, Germany); Thompson, Nancy Slater (U.S. Department of Energy, Washington, DC); Hibbs, Russell S. (U.S. Department of Energy, Washington, DC); Gregson, Michael Warren; Lange, Florentin (Gesellschaft fur Anlagen- und Reaktorsicherheit, Germany); Molecke, Martin Alan; Tsai, Han-Chung (Argonne National Laboratory, Argonne, IL)

2005-07-01T23:59:59.000Z

495

New Curved Spacetime Dirac Equations - On the Anomalous Gyromagnetic Ratio  

E-Print Network [OSTI]

I propose three new curved spacetime versions of the Dirac Equation. These equations have been developed mainly to try and account in a natural way for the observed anomalous gyromagnetic ratio of Fermions. The derived equations suggest that particles including the Electron which is thought to be a point particle do have a finite spatial size which is the reason for the observed anomalous gyromagnetic ratio. A serendipitous result of the theory, is that, two of the equation exhibits an asymmetry in their positive and negative energy solutions the first suggestion of which is clear that a solution to the problem as to why the Electron and Muon - despite their acute similarities - exhibit an asymmetry in their mass is possible. The Mourn is often thought as an Electron in a higher energy state. Another of the consequences of three equations emanating from the asymmetric serendipity of the energy solutions of two of these equations, is that, an explanation as to why Leptons exhibit a three stage mass hierarchy is possible.

G. G. Nyambuya

2008-09-06T23:59:59.000Z

496

Tissue phantom ratios for a Clinac 4/100  

SciTech Connect (OSTI)

Tissue phantom ratios (TPR), based on a normalization depth of 5 cm, have been measured in water for field sizes from 5 x 5 cm/sup 2/ to approximately 40 x 40 cm/sup 2/ and for depths from 1 to 40 cm for a Varian Clinac 4/100. These TPR's have been compared with those calculated from percent depth doses measured at the same time, and the two sets of data generally agree to better than 1%, with an average ratio of measured to calculated TPR of 0.999 +- 0.013. Beam profiles have been measured for open and wedged fields, with particular concern for the often observed ''horns,'' or the increase in dose at the corners of the field. The maximum dose at a depth of 1 cm, along the diagonal of the field for this machine, is approximately 5% higher than at the same depth on the central axis, whereas along the principal plane the maximum dose is only about 3% higher.

Biggs, P.J.; Doppke, K.P.; Leong, J.C.; Russell, M.D.

1982-09-01T23:59:59.000Z

497

Bound for entropy and viscosity ratio for strange quark matter  

E-Print Network [OSTI]

High energy density ($\\eps$) and temperature (T) links general relativity and hydrodynamics leading to a lower bound for the ratio of shear viscosity ($\\eta$) and entropy density ($s$). We get the interesting result that the bound is saturated in the simple model for quark matter that we use for strange stars at the surface for $T \\sim 80 MeV$. At this $T$ we have the possibility of cosmic separation of phases. At the surface of the star where the pressure is zero - the density $\\eps$ has a fixed value for all stars of various masses with correspondingly varying central energy density $\\eps_c$. Inside the star where this density is higher, the ratio of $\\eta/s$ is larger and are like the known results found for perturbative QCD. This serves as a check of our calculation. The deconfined quarks at the surface of the strange star at $T = 80 MeV$ seem to constitute the most perfect interacting fluid permitted by nature.

Manjari Bagchi; Jishnu Dey; Mira Dey; Taparati Gangopadhyay; Sibasish Laha; Subharthi Ray; Monika Sinha

2008-07-03T23:59:59.000Z

498

Influence of Transport Variables on Isospin Transport Ratios  

E-Print Network [OSTI]

The symmetry energy in the nuclear equation of state affects many aspects of nuclear astrophysics, nuclear structure, and nuclear reactions. Recent constraints from heavy ion collisions, including isospin diffusion observables, have started to put constraints on the symmetry energy below nuclear saturation density, but these constraints depend on the employed transport model and input physics other than the symmetry energy. To understand these dependencies, we study the influence of the symmetry energy, isoscaler mean field compressibility and momentum dependence, in-medium nucleon-nucleon cross sections, and light cluster production on isospin diffusion within the pBUU transport code. In addition to the symmetry energy, several uncertain issues strongly affect isospin diffusion, most notably the cross sections and cluster production. In addition, there is a difference in the calculated isospin transport ratios, depending upon whether they are computed using the isospin asymmetry of either the residue or of all forward moving fragments. Measurements that compare the isospin transport ratios of these two quantities would help place constraints on the input physics, such as the density dependence of the symmetry energy.

D. D. S. Coupland; W. G. Lynch; M. B. Tsang; P. Danielewicz; Yingxun Zhang

2011-07-19T23:59:59.000Z

499

Cosmic ray muon charge ratio in the MINOS far detector  

SciTech Connect (OSTI)

The MINOS Far Detector is a 5.4 kiloton (5.2 kt steel plus 0.2 kt scintillator plus aluminum skin) magnetized tracking calorimeter located 710 meters underground in the Soudan mine in Northern Minnesota. MINOS is the first large, deep underground detector with a magnetic field and thus capable of making measurements of the momentum and charge of cosmic ray muons. Despite encountering unexpected anomalies in distributions of the charge ratio (N{sub {mu}{sup +}}/N{sub {mu}{sup -}}) of cosmic muons, a method of canceling systematic errors is proposed and demonstrated. The result is R{sub eff} = 1.346 {+-} 0.002 (stat) {+-} 0.016 (syst) for the averaged charge ratio, and a result for a rising fit to slant depth of R(X) = 1.300 {+-} 0.008 (stat) {+-} 0.016 (syst) + (1.8 {+-} 0.3) x 10{sup -5} x X, valid over the range of slant depths from 2000 < X < 6000 MWE. This slant depth range corresponds to minimum surface muon energies between 750 GeV and 5 TeV.

Beall, Erik B; /Minnesota U.

2005-12-01T23:59:59.000Z

500

Spherical codes, maximal local packing density, and the golden ratio  

E-Print Network [OSTI]

The densest local packing (DLP) problem in d-dimensional Euclidean space Rd involves the placement of N nonoverlapping spheres of unit diameter near an additional fixed unit-diameter sphere such that the greatest distance from the center of the fixed sphere to the centers of any of the N surrounding spheres is minimized. Solutions to the DLP problem are relevant to the realizability of pair correlation functions for packings of nonoverlapping spheres and might prove useful in improving upon the best known upper bounds on the maximum packing fraction of sphere packings in dimensions greater than three. The optimal spherical code problem in Rd involves the placement of the centers of N nonoverlapping spheres of unit diameter onto the surface of a sphere of radius R such that R is minimized. It is proved that in any dimension, all solutions between unity and the golden ratio to the optimal spherical code problem for N spheres are also solutions to the corresponding DLP problem. It follows that for any packing of nonoverlapping spheres of unit diameter, a spherical region of radius less than or equal to the golden ratio centered on an arbitrary sphere center cannot enclose a number of sphere centers greater than one more than the number that can be placed on the region's surface.

A. B. Hopkins; F. H. Stillinger; S. Torquato

2010-03-18T23:59:59.000Z