Sample records for arbitrary scale expressing

  1. Multiprocessor Speed Scaling for Jobs with Arbitrary Sizes and Deadlines

    E-Print Network [OSTI]

    Wong, Prudence W.H.

    or laptops with multi-core processors. A popular technology to reduce energy usage is dynamic speed scaling.H. Wong 1 Introduction Energy consumption has become an important concern in the design of modern energy, yet it takes longer to finish the job. The study of speed scaling was initiated by Yao et al. [6

  2. Particle acceleration at shock waves moving at arbitrary speed: the case of large scale magnetic field and anisotropic scattering

    E-Print Network [OSTI]

    G. Morlino; P. Blasi; M. Vietri

    2007-01-08T23:59:59.000Z

    A mathematical approach to investigate particle acceleration at shock waves moving at arbitrary speed in a medium with arbitrary scattering properties was first discussed in (Vietri 2003) and (Blasi & Vietri 2005}. We use this method and somewhat extend it in order to include the effect of a large scale magnetic field in the upstream plasma, with arbitrary orientation with respect to the direction of motion of the shock. We also use this approach to investigate the effects of anisotropic scattering on spectra and anisotropies of the distribution function of the accelerated particles.

  3. Normalization conventions for Newton's constant and the Planck scale in arbitrary spacetime dimension

    E-Print Network [OSTI]

    Sean P. Robinson

    2006-09-17T23:59:59.000Z

    We calculate, in d spacetime dimensions, the relationship between the coefficient 1/K^2 of the Einstein-Hilbert term in the action of general relativity and the coefficient G_N of the force law that results from the Newtonian limit of general relativity. The result is K^2=2[(d-2)/(d-3)]Vol(S^[d-2])G_N, where Vol(S^n) is the volume of the unit n-sphere. While the d=4 case is an elementary calculation in any general relativity text, the arbitrary case presented here is slightly less well known. We discuss the relevance of this result for the definition of the so-called "reduced Planck mass" and comment very briefly on the implications for brane world models. [abstract abridged

  4. Data mining techniques for large-scale gene expression analysis

    E-Print Network [OSTI]

    Palmer, Nathan Patrick

    2011-01-01T23:59:59.000Z

    Modern computational biology is awash in large-scale data mining problems. Several high-throughput technologies have been developed that enable us, with relative ease and little expense, to evaluate the coordinated expression ...

  5. Detecting separate time scales in genetic expression data

    E-Print Network [OSTI]

    Orlando, David A; Brady, Siobhan M; Fink, Thomas M A; Benfey, Philip N; Ahnert, Sebastian E

    2010-06-16T23:59:59.000Z

    experiments. Cell Cycle 2007, 6:478-488. 5. Boyle EI, Weng SA, Gollub J, Jin H, Botstein D, Cherry JM, Sherlock G: GO:: TermFinder-open source software for accessing Gene Ontology information and finding significantly enriched Gene Ontology terms... Orlando et al. BMC Genomics 2010, 11:381 http://www.biomedcentral.com/1471-2164/11/381Open AccessM E T H O D O L O G Y A R T I C L E Methodology articleDetecting separate time scales in genetic expression data David A Orlando1,2, Siobhan M Brady1...

  6. Automatic Construction of Large-Scale Regular Expression Matching Engines on FPGA

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    Automatic Construction of Large-Scale Regular Expression Matching Engines on FPGA Yi-Hua E. Yang@usc.edu, prasanna@usc.edu Abstract--We present algorithms for implementing large-scale regular expression matching (REM) on FPGA. Based on the proposed algorithms, we develop tools that first transform regular

  7. Multiple phase estimation for arbitrary pure states under white noise

    E-Print Network [OSTI]

    Yao Yao; Li Ge; Xing Xiao; Xiaoguang Wang; C. P. Sun

    2014-09-08T23:59:59.000Z

    In any realistic quantum metrology scenarios, the ultimate precision in the estimation of parameters is limited not only by the so-called Heisenberg scaling, but also the environmental noise encountered by the underlying system. In the context of quantum estimation theory, it is of great significance to carefully evaluate the impact of a specific type of noise on the corresponding quantum Fisher information (QFI) or quantum Fisher information matrix (QFIM). Here we investigate the multiple phase estimation problem for a natural parametrization of arbitrary pure states under white noise. We obtain the explicit expression of the symmetric logarithmic derivative (SLD) and hence the analytical formula of QFIM. Moreover, the attainability of the quantum Cram\\'{e}r-Rao bound (QCRB) is confirmed by the commutability of SLDs and the optimal estimators are elucidated for the experimental purpose. These findings generalize previously known partial results and highlight the role of white noise in quantum metrology.

  8. Perturbative Gadgets at Arbitrary Orders

    E-Print Network [OSTI]

    Stephen P. Jordan; Edward Farhi

    2012-01-31T23:59:59.000Z

    Adiabatic quantum algorithms are often most easily formulated using many-body interactions. However, experimentally available interactions are generally two-body. In 2004, Kempe, Kitaev, and Regev introduced perturbative gadgets, by which arbitrary three-body effective interactions can be obtained using Hamiltonians consisting only of two-body interactions. These three-body effective interactions arise from the third order in perturbation theory. Since their introduction, perturbative gadgets have become a standard tool in the theory of quantum computation. Here we construct generalized gadgets so that one can directly obtain arbitrary k-body effective interactions from two-body Hamiltonians. These effective interactions arise from the kth order in perturbation theory.

  9. The Arbitrary Trajectory Quantization Method

    E-Print Network [OSTI]

    Debabrata Biswas

    2001-07-12T23:59:59.000Z

    The arbitrary trajectory quantization method (ATQM) is a time dependent approach to quasiclassical quantization based on the approximate dual relationship that exists between the quantum energy spectra and classical periodic orbits. It has recently been shown however, that, for polygonal billiards, the periodicity criterion must be relaxed to include closed almost-periodic (CAP) orbit families in this relationship. In light of this result, we reinvestigate the ATQM and show that at finite energies, a smoothened quasiclassical kernel corresponds to the modified formula that includes CAP families while the delta function kernel corresponding to the periodic orbit formula is recovered at high energies. Several clarifications are also provided.

  10. Colored knot polynomials for arbitrary pretzel knots and links

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

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

    2015-04-01T23:59:59.000Z

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

  11. Arbitrary Rotation Invariant Random Matrix Ensembles and Supersymmetry

    E-Print Network [OSTI]

    Thomas Guhr

    2006-06-03T23:59:59.000Z

    We generalize the supersymmetry method in Random Matrix Theory to arbitrary rotation invariant ensembles. Our exact approach further extends a previous contribution in which we constructed a supersymmetric representation for the class of norm-dependent Random Matrix Ensembles. Here, we derive a supersymmetric formulation under very general circumstances. A projector is identified that provides the mapping of the probability density from ordinary to superspace. Furthermore, it is demonstrated that setting up the theory in Fourier superspace has considerable advantages. General and exact expressions for the correlation functions are given. We also show how the use of hyperbolic symmetry can be circumvented in the present context in which the non-linear sigma model is not used. We construct exact supersymmetric integral representations of the correlation functions for arbitrary positions of the imaginary increments in the Green functions.

  12. Residual zonal flows in tokamaks and stellarators at arbitrary wavelengths

    E-Print Network [OSTI]

    Monreal, P; Sánchez, E; Parra, F I; Bustos, A; Könies, A; Kleiber, R; Görler, T

    2015-01-01T23:59:59.000Z

    In the linear collisionless limit, a zonal potential perturbation in a toroidal plasma relaxes, in general, to a non-zero residual value. Expressions for the residual value in tokamak and stellarator geometries, and for arbitrary wavelengths, are derived. These expressions involve averages over the lowest order particle trajectories, that typically cannot be evaluated analytically. In this work, an efficient numerical method for the evaluation of such expressions is reported. It is shown that this method is faster than direct gyrokinetic simulations. Calculations of the residual value in stellarators are provided for much shorter wavelengths than previously available in the literature. Electrons must be treated kinetically in stellarators because, unlike in tokamaks, kinetic electrons modify the residual value even at long wavelengths. This effect, that had already been predicted theoretically, is confirmed by gyrokinetic simulations.

  13. U-074: Microsoft .NET Bugs Let Remote Users Execute Arbitrary...

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

    4: Microsoft .NET Bugs Let Remote Users Execute Arbitrary Commands, Access User Accounts, and Redirect Users U-074: Microsoft .NET Bugs Let Remote Users Execute Arbitrary Commands,...

  14. Multiprocessor Speed Scaling for Jobs with Arbitrary Sizes and Deadlines

    E-Print Network [OSTI]

    Wong, Prudence W.H.

    for server farms or laptops with multi-core processors. A popular technology to reduce energy usage study energy efficient deadline scheduling on multiprocessors in which the processors consumes power the minimum energy. The problem has been well studied for the single processor case. For the multiprocessor

  15. Dynamic optical arbitrary waveform generation and measurement

    E-Print Network [OSTI]

    Kolner, Brian H.

    (7), 2701­2719 (2006). 4. N. K. Fontaine, R. P. Scott, J. Cao, A. Karalar, W. Jiang, K. Okamoto, J. PDynamic optical arbitrary waveform generation and measurement Ryan P. Scott,* Nicolas K. Fontaine. Lett. 32(7), 865­867 (2007). 5. R. P. Scott, N. K. Fontaine, J. Cao, K. Okamoto, B. H. Kolner, J. P

  16. Decay of Graviton Condensates and their Generalizations in Arbitrary Dimensions

    E-Print Network [OSTI]

    Florian Kuhnel; Bo Sundborg

    2014-09-30T23:59:59.000Z

    Classicalons are self-bound classical field configurations, which include black holes in General Relativity. In quantum theory, they are described by condensates of many soft quanta. In this work, their decay properties are studied in arbitrary dimensions. It is found that generically the decays of other classicalons are enhanced compared to pure graviton condensates, ie. black holes. The evaporation of higher dimensional graviton condensates turns out to match Hawking radiation solely due to non-linearites captured by the classicalon picture. Although less stable than black holes, all self-bound condensates are shown to be stable in the limit of large mass. Like for black holes, the effective coupling always scales as the inverse of the number of constituents, indicating that these systems are at critical points of quantum phase transitions. Consequences for cosmology, astro- and collider physics are briefly discussed.

  17. Efficient quantum circuits for arbitrary sparse unitaries

    SciTech Connect (OSTI)

    Jordan, Stephen P. [Institute for Quantum Information, Caltech, Pasadena, California 91125 (United States); Wocjan, Pawel [School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, Florida 32816 (United States)

    2009-12-15T23:59:59.000Z

    Arbitrary exponentially large unitaries cannot be implemented efficiently by quantum circuits. However, we show that quantum circuits can efficiently implement any unitary provided it has at most polynomially many nonzero entries in any row or column, and these entries are efficiently computable. One can formulate a model of computation based on the composition of sparse unitaries which includes the quantum Turing machine model, the quantum circuit model, anyonic models, permutational quantum computation, and discrete time quantum walks as special cases. Thus, we obtain a simple unified proof that these models are all contained in BQP. Furthermore, our general method for implementing sparse unitaries simplifies several existing quantum algorithms.

  18. Thermoacoustic tomography with an arbitrary elliptic operator

    E-Print Network [OSTI]

    Michael V. Klibanov

    2012-08-26T23:59:59.000Z

    Thermoacoustic tomography is a term for the inverse problem of determining of one of initial conditions of a hyperbolic equation from boundary measurements. In the past publications both stability estimates and convergent numerical methods for this problem were obtained only under some restrictive conditions imposed on the principal part of the elliptic operator. In this paper logarithmic stability estimates are obatined for an arbitrary variable principal part of that operator. Convergence of the Quasi-Reversibility Method to the exact solution is also established for this case. Both complete and incomplete data collection cases are considered.

  19. Multiboson Correlation Interferometry with arbitrary single-photon pure states

    E-Print Network [OSTI]

    Vincenzo Tamma; Simon Laibacher

    2015-04-23T23:59:59.000Z

    We provide a compact full description of multiboson correlation measurements of arbitrary order N in passive linear interferometers with arbitrary input single-photon pure states. We give evidence, even for non-identical photons, of the tremendous computational power of multiphoton quantum interference at the heart of the complexity of multiboson correlation sampling at the output of random linear interferometers. Moreover, our results describe general multiboson correlation landscapes for an arbitrary number of input single photons and arbitrary interferometers. In particular, we use two different schemes to demonstrate, respectively, arbitrary-order quantum beat interference and 100 % visibility entanglement correlations even for input photons distinguishable in their frequencies.

  20. ASTROMETRY.NET: BLIND ASTROMETRIC CALIBRATION OF ARBITRARY ASTRONOMICAL IMAGES

    SciTech Connect (OSTI)

    Lang, Dustin; Mierle, Keir; Roweis, Sam [Department of Computer Science, University of Toronto, 6 King's College Road, Toronto, Ontario M5S 3G4 (Canada); Hogg, David W.; Blanton, Michael [Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003 (United States)], E-mail: dstn@astro.princeton.edu

    2010-05-15T23:59:59.000Z

    We have built a reliable and robust system that takes as input an astronomical image, and returns as output the pointing, scale, and orientation of that image (the astrometric calibration or World Coordinate System information). The system requires no first guess, and works with the information in the image pixels alone; that is, the problem is a generalization of the 'lost in space' problem in which nothing-not even the image scale-is known. After robust source detection is performed in the input image, asterisms (sets of four or five stars) are geometrically hashed and compared to pre-indexed hashes to generate hypotheses about the astrometric calibration. A hypothesis is only accepted as true if it passes a Bayesian decision theory test against a null hypothesis. With indices built from the USNO-B catalog and designed for uniformity of coverage and redundancy, the success rate is >99.9% for contemporary near-ultraviolet and visual imaging survey data, with no false positives. The failure rate is consistent with the incompleteness of the USNO-B catalog; augmentation with indices built from the Two Micron All Sky Survey catalog brings the completeness to 100% with no false positives. We are using this system to generate consistent and standards-compliant meta-data for digital and digitized imaging from plate repositories, automated observatories, individual scientific investigators, and hobbyists. This is the first step in a program of making it possible to trust calibration meta-data for astronomical data of arbitrary provenance.

  1. U-236: Microsoft JScript and VBScript Engine Integer Overflow Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Execution of arbitrary code via network A remote user can cause arbitrary code to be executed on the target

  2. V-170: Apache Subversion Hook Scripts Arbitrary Command Injection...

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

    script while processing filenames and can be exploited to inject and execute arbitrary shell commands via a specially crafted request. Successful exploitation requires that...

  3. V -209:Cisco WAAS (Wide Area Application Services) Arbitrary...

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

    as Central Manager (CM), contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on the affected system. REFERENCE LINKS: Secunia...

  4. Is It Possible To Clone Using An Arbitrary Blank State?

    E-Print Network [OSTI]

    Anirban Roy; Aditi Sen; Ujjwal Sen

    2001-11-29T23:59:59.000Z

    We show that in a cloning process, whether deterministic inexact or probabilistic exact, one can take an arbitrary blank state while still using a fixed cloning machine.

  5. arbitrary optical trapping: Topics by E-print Network

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

    passing through Schieber, Jay D. 238 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  6. arbitrary apertures ii: Topics by E-print Network

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

    Washington at Seattle, University of 385 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  7. arbitrary quantum system: Topics by E-print Network

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

    theory. Sergio Giardino 2013-09-10 30 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  8. arbitrary ionic strength: Topics by E-print Network

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

    Washington at Seattle, University of 327 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  9. arbitrary degree sequence: Topics by E-print Network

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

    Washington at Seattle, University of 412 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  10. arbitrary hard ellipses: Topics by E-print Network

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

    Washington at Seattle, University of 342 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  11. arbitrary control loop: Topics by E-print Network

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

    Washington at Seattle, University of 330 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  12. Optimal control theory with arbitrary superpositions of waveforms

    E-Print Network [OSTI]

    Selina Meister; Jürgen T. Stockburger; Rebecca Schmidt; Joachim Ankerhold

    2014-11-20T23:59:59.000Z

    Standard optimal control methods perform optimization in the time domain. However, many experimental settings demand the expression of the control signal as a superposition of given waveforms, a case that cannot easily be accommodated using time-local constraints. Previous approaches [1,2] have circumvented this difficulty by performing optimization in a parameter space, using the chain rule to make a connection to the time domain. In this paper, we present an extension to Optimal Control Theory which allows gradient-based optimization for superpositions of arbitrary waveforms directly in a time-domain subspace. Its key is the use of the Moore-Penrose pseudoinverse as an efficient means of transforming between a time-local and waveform-based descriptions. To illustrate this optimization technique, we study the parametrically driven harmonic oscillator as model system and reduce its energy, considering both Hamiltonian dynamics and stochastic dynamics under the influence of a thermal reservoir. We demonstrate the viability and efficiency of the method for these test cases and find significant advantages in the case of waveforms which do not form an orthogonal basis.

  13. Damage from pulses with arbitrary temporal shapes

    SciTech Connect (OSTI)

    Trenholme, J.B.

    1994-06-06T23:59:59.000Z

    In fusion laser designs, the laser pulse has a complicated temporal shape which undergoes significant change as it passes through the laser. Our damage data, however, was taken with pulses whose temporal shapes were (more or less) Gaussian. We want to determine the damage propensity of a material exposed to a pulse of arbitrary temporal shape , given data taken with Gaussian pulses of different pulse widths. To do so, we must adopt a physical model of damage. This model will contain some number of parameters that depend on material properties, geometry, and so forth. We determine the parameters of the model appropriate to each material by fitting the model to the Gaussian data for that material. The resulting normalized model is then applied, using the appropriate pulse shape, to find the damage level for a specific material subjected to a specific pulse. The model we shall assume is related to diffusion, although (as we shall see) the experimental results do not fit any simple diffusion model. Initially, we will discuss simple diffusion models. We then examine some experimental data, and then develop a modified diffusive model from that data. That modified model is then used to predict damage levels in various portions of the NIF laser design.

  14. Complete hierarchies of SIR models on arbitrary networks with exact and approximate moment closure

    E-Print Network [OSTI]

    Sharkey, Kieran J

    2015-01-01T23:59:59.000Z

    We first generalise ideas discussed by Kiss et al. (2015) to prove a theorem for generating exact closures (here expressing joint probabilities in terms of their constituent marginal probabilities) for susceptible-infectious-removed (SIR) dynamics on arbitrary graphs (networks). For Poisson transmission and removal processes, this enables us to obtain a systematic reduction in the number of differential equations needed for an exact `moment closure' representation of the underlying stochastic model. We define `transmission blocks' as a possible extension of the block concept in graph theory and show that the order at which the exact moment closure representation is curtailed is the size of the largest transmission block. More generally, approximate closures of the hierarchy of moment equations for these dynamics are typically defined for the first and second order yielding mean-field and pairwise models respectively. It is frequently implied that, in principle, closed models can be written down at arbitrary o...

  15. Virtual Clay: Haptics-based Deformable Solids of Arbitrary Topology

    E-Print Network [OSTI]

    McDonnell, Kevin

    Virtual Clay: Haptics-based Deformable Solids of Arbitrary Topology Kevin T. McDonnell and Hong Qin|qin}@cs.sunysb.edu Abstract. This paper presents Virtual Clay as a novel, interactive, dy- namic, haptics-based deformable solid of arbitrary topology. Our Virtual Clay methodology is a unique, powerful visual modeling paradigm

  16. Wavelet Radiosity on Arbitrary Planar Nicolas Holzschuch1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wavelet Radiosity on Arbitrary Planar Surfaces Nicolas Holzschuch1 , Franc¸ois Cuny2 and Laurent Abstract. Wavelet radiosity is, by its nature, restricted to parallelograms or tri- angles. This paper presents an innovative technique enabling wavelet radiosity computations on planar surfaces of arbitrary

  17. ASTROMETRY.NET: BLIND ASTROMETRIC CALIBRATION OF ARBITRARY ASTRONOMICAL IMAGES

    E-Print Network [OSTI]

    Masci, Frank

    ASTROMETRY.NET: BLIND ASTROMETRIC CALIBRATION OF ARBITRARY ASTRONOMICAL IMAGES This article has CALIBRATION OF ARBITRARY ASTRONOMICAL IMAGES Dustin Lang1,2,7 , David W. Hogg3,4 , Keir Mierle1,5 , Michael Blanton3 , and Sam Roweis1,5,6 1 Department of Computer Science, University of Toronto, 6 King's College

  18. Quantum Szilard engines with arbitrary spin

    E-Print Network [OSTI]

    Zekun Zhuang; Shi-Dong Liang

    2015-02-02T23:59:59.000Z

    The quantum Szilard engine (QSZE) is a conceptual quantum engine for understanding the fundamental physics of quantum thermodynamics and information physics. We generalize the QSZE to an arbitrary spin case, i.e., a spin QSZE (SQSZE), and we systematically study the basic physical properties of both fermion and boson SQSZEs in a low-temperature approximation. We give the analytic formulation of the total work. For the fermion SQSZE, the work might be absorbed from the environment, and the change rate of the work with temperature exhibits periodicity and even-odd oscillation, which is a generalization of a spinless QSZE. It is interesting that the average absorbed work oscillates regularly and periodically in a large-number limit, which implies that the average absorbed work in a fermion SQSZE is neither an intensive quantity nor an extensive quantity. The phase diagrams of both fermion and boson SQSZEs give the SQSZE doing positive or negative work in the parameter space of the temperature and the particle number of the system, but they have different behaviors because the spin degrees of the fermion and the boson play different roles in their configuration states and corresponding statistical properties. The critical temperature of phase transition depends sensitively on the particle number. By using Landauer's erasure principle, we give the erasure work in a thermodynamic cycle, and we define an efficiency (we refer to it as information-work efficiency) to measure the engine's ability of utilizing information to extract work. We also give the conditions under which the maximum extracted work and highest information-work efficiencies for fermion and boson SQSZEs can be achieved.

  19. Quantum Coding Theorems for Arbitrary Sources, Channels and Entanglement Resources

    E-Print Network [OSTI]

    Garry Bowen; Nilanjana Datta

    2006-09-30T23:59:59.000Z

    The information spectrum approach gives general formulae for optimal rates of various information theoretic protocols, under minimal assumptions on the nature of the sources, channels and entanglement resources involved. This paper culminates in the derivation of the dense coding capacity for a noiseless quantum channel, assisted by arbitrary shared entanglement, using this approach. We also review the currently known coding theorems, and their converses, for protocols such as data compression for arbitrary quantum sources and transmission of classical information through arbitrary quantum channels. In addition, we derive the optimal rate of data compression for a mixed source

  20. Assembly of 500,000 inter-specific catfish expressed sequence tags and large scale gene-associated marker development for whole genome association studies

    SciTech Connect (OSTI)

    Catfish Genome Consortium; Wang, Shaolin; Peatman, Eric; Abernathy, Jason; Waldbieser, Geoff; Lindquist, Erika; Richardson, Paul; Lucas, Susan; Wang, Mei; Li, Ping; Thimmapuram, Jyothi; Liu, Lei; Vullaganti, Deepika; Kucuktas, Huseyin; Murdock, Christopher; Small, Brian C; Wilson, Melanie; Liu, Hong; Jiang, Yanliang; Lee, Yoona; Chen, Fei; Lu, Jianguo; Wang, Wenqi; Xu, Peng; Somridhivej, Benjaporn; Baoprasertkul, Puttharat; Quilang, Jonas; Sha, Zhenxia; Bao, Baolong; Wang, Yaping; Wang, Qun; Takano, Tomokazu; Nandi, Samiran; Liu, Shikai; Wong, Lilian; Kaltenboeck, Ludmilla; Quiniou, Sylvie; Bengten, Eva; Miller, Norman; Trant, John; Rokhsar, Daniel; Liu, Zhanjiang

    2010-03-23T23:59:59.000Z

    Background-Through the Community Sequencing Program, a catfish EST sequencing project was carried out through a collaboration between the catfish research community and the Department of Energy's Joint Genome Institute. Prior to this project, only a limited EST resource from catfish was available for the purpose of SNP identification. Results-A total of 438,321 quality ESTs were generated from 8 channel catfish (Ictalurus punctatus) and 4 blue catfish (Ictalurus furcatus) libraries, bringing the number of catfish ESTs to nearly 500,000. Assembly of all catfish ESTs resulted in 45,306 contigs and 66,272 singletons. Over 35percent of the unique sequences had significant similarities to known genes, allowing the identification of 14,776 unique genes in catfish. Over 300,000 putative SNPs have been identified, of which approximately 48,000 are high-quality SNPs identified from contigs with at least four sequences and the minor allele presence of at least two sequences in the contig. The EST resource should be valuable for identification of microsatellites, genome annotation, large-scale expression analysis, and comparative genome analysis. Conclusions-This project generated a large EST resource for catfish that captured the majority of the catfish transcriptome. The parallel analysis of ESTs from two closely related Ictalurid catfishes should also provide powerful means for the evaluation of ancient and recent gene duplications, and for the development of high-density microarrays in catfish. The inter- and intra-specific SNPs identified from all catfish EST dataset assembly will greatly benefit the catfish introgression breeding program and whole genome association studies.

  1. Schwinger Mechanism for Gluon Pair Production in the Presence of Arbitrary Time Dependent Chromo-Electric Field in Arbitrary Gauge

    E-Print Network [OSTI]

    Gouranga C Nayak

    2009-10-02T23:59:59.000Z

    We study non-perturbative gluon pair production from arbitrary time dependent chromo-electric field E^a(t) with arbitrary color index a =1,2,...8 via Schwinger mechanism in arbitrary covariant background gauge \\alpha. We show that the probability of non-perturbative gluon pair production per unit time per unit volume per unit transverse momentum \\frac{dW}{d^4xd^2p_T} is independent of gauge fixing parameter \\alpha. Hence the result obtained in the Fynman-'t Hooft gauge, \\alpha=1, is the correct gauge invariant and gauge parameter \\alpha independent result.

  2. A Markov-type inequality for arbitrary plane continua

    E-Print Network [OSTI]

    1910-51-20T23:59:59.000Z

    Dec 8, 2005 ... for all polynomials f. We prove a precise version of this inequality with an arbitrary continuum in the complex plane instead of the interval. [?1,1].

  3. Skin effect with arbitrary specularity in Maxwellian plasma

    E-Print Network [OSTI]

    Anatoly V. Latyshev; Alexander A. Yushkanov

    2009-12-10T23:59:59.000Z

    The problem of skin effect with arbitrary specularity in maxwellian plasma with specular--diffuse boundary conditions is solved. A new analytical method is developed that makes it possible to to obtain a solution up to an arbitrary degree of accuracy. The method is based on the idea of symmetric continuation not only the electric field, but also electron distribution function. The solution is obtained in a form of von Neumann series.

  4. Quantum gravitational corrections to propagator in arbitrary spacetimes

    E-Print Network [OSTI]

    T. Padmanabhan

    1997-03-18T23:59:59.000Z

    The action for a relativistic free particle of mass m receives a contribution $-m R(x,y)$ from a path of length R(x,y) connecting the events $x^i$ and $y^i$. Using this action in a path integral, one can obtain the Feynman propagator for a spinless particle of mass m in any background spacetime. If one of the effects of quantizing gravity is to introduce a minimum length scale $L_P$ in the spacetime, then one would expect the segments of paths with lengths less than $L_P$ to be suppressed in the path integral. Assuming that the path integral amplitude is invariant under the `duality' transformation ${\\cal R}\\to L_P^2/R$, one can calculate the modified Feynman propagator in an arbitrary background spacetime. It turns out that the key feature of this modification is the following: The proper distance $(\\Delta x)^2$ between two events, which are infinitesimally separated, is replaced by $\\Delta x^2 + L_P^2$; that is the spacetime behaves as though it has a `zero-point length' of $L_P$. This equivalence suggests a deep relationship between introducing a `zero-point-length' to the spacetime and postulating invariance of path integral amplitudes under duality transformations. In the Schwinger's proper time description of the propagator, the weightage for a path with proper time s becomes $m(s+L_P^2/s)$ rather than as ms. As to be expected, the ultraviolet behavior of the theory is improved significantly and divergences will disappear if this modification is taken into account. Implications of this result are discussed.

  5. U-241: Adobe Flash Player Bugs Let Remote Users Execute Arbitrary...

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

    41: Adobe Flash Player Bugs Let Remote Users Execute Arbitrary Code and Obtain Information U-241: Adobe Flash Player Bugs Let Remote Users Execute Arbitrary Code and Obtain...

  6. THERMOACOUSTIC TOMOGRAPHY WITH AN ARBITRARY ELLIPTIC OPERATOR MICHAEL V. KLIBANOV

    E-Print Network [OSTI]

    1 THERMOACOUSTIC TOMOGRAPHY WITH AN ARBITRARY ELLIPTIC OPERATOR MICHAEL V. KLIBANOV Abstract. Thermoacoustic tomography is a term for the inverse problem of determining of one of initial conditions. In thermoacoustic tomography (TAT) a short radio frequency pulse is sent in a biological tissue [1, 9]. Some energy

  7. Optimal Black-Box Secret Sharing over Arbitrary Abelian Groups

    E-Print Network [OSTI]

    Fehr, Serge

    Optimal Black-Box Secret Sharing over Arbitrary Abelian Groups Ronald Cramer and Serge Fehr BRICS-box secret sharing scheme for the threshold access structure Tt,n is one which works over any finite Abelian group G. Briefly, such a scheme differs from an ordinary linear secret sharing scheme (over, say

  8. Optimal BlackBox Secret Sharing over Arbitrary Abelian Groups

    E-Print Network [OSTI]

    Fehr, Serge

    Optimal Black­Box Secret Sharing over Arbitrary Abelian Groups Ronald Cramer and Serge Fehr BRICS­box secret sharing scheme for the threshold access structure Tt,n is one which works over any finite Abelian group G. Briefly, such a scheme di#ers from an ordinary linear secret sharing scheme (over, say, a given

  9. Mathematical Modeling and Analysis The Arbitrary-Lagrangian-

    E-Print Network [OSTI]

    Kurien, Susan

    of the fluid, (ii) preserve positivity of density and specific internal energy, (iii) satisfy the maximumMathematical Modeling and Analysis The Arbitrary-Lagrangian- Eulerian Code for 1D Compressible- zone phase in which a new grid is defined, and a remapping (conservative interpolation) phase in which

  10. Differential Gene Expression Profiles and Real-Time Measurements of Growth Parameters in Saccharomyces cereWisiae Grown in Microliter-Scale Bioreactors

    E-Print Network [OSTI]

    Sinskey, Anthony J.

    in Saccharomyces cereWisiae Grown in Microliter-Scale Bioreactors Equipped with Internal Stirring Paolo Boccazzi and glucose media in 150 µL bioreactors equipped with sensors for in situ and real-time measurements bioreactors, shake flasks, test tubes, and microtiter plates. These analytical platforms yield limited

  11. The Smoluchowski-Kramers limit of stochastic differential equations with arbitrary state-dependent friction

    E-Print Network [OSTI]

    Scott Hottovy; Austin McDaniel; Giovanni Volpe; Jan Wehr

    2014-10-24T23:59:59.000Z

    We study a class of systems of stochastic differential equations describing diffusive phenomena. The Smoluchowski-Kramers approximation is used to describe their dynamics in the small mass limit. Our systems have arbitrary state-dependent friction and noise coefficients. We identify the limiting equation and, in particular, the additional drift term that appears in the limit is expressed in terms of the solution to a Lyapunov matrix equation. The proof uses a theory of convergence of stochastic integrals developed by Kurtz and Protter. The result is sufficiently general to include systems driven by both white and Ornstein-Uhlenbeck colored noises. We discuss applications of the main theorem to several physical phenomena, including the experimental study of Brownian motion in a diffusion gradient.

  12. Generalized Solovev equilibrium with sheared flow of arbitrary direction and stability consideration

    SciTech Connect (OSTI)

    Kaltsas, D. A., E-mail: dkaltsas@cc.uoi.gr, E-mail: gthroum@cc.uoi.gr; Throumoulopoulos, G. N., E-mail: dkaltsas@cc.uoi.gr, E-mail: gthroum@cc.uoi.gr [Department of Physics, University of Ioannina, GR 451 10 Ioannina (Greece)

    2014-08-15T23:59:59.000Z

    A Solovev-like solution describing equilibria with field aligned incompressible flows [G. N. Throumoulopoulos and H. Tasso, Phys. Plasmas 19, 014504 (2012)] is extended to non parallel flows. The solution expressed as a superposition of Bessel functions contains an arbitrary number of free parameters which are exploited to construct a variety of configurations including ITER shaped ones. For parallel flows, application of a sufficient condition for linear stability shows that this condition is satisfied in an appreciable part of the plasma region on the high-field side mostly due to the variation of the magnetic field perpendicular to the magnetic surfaces. Also, the results indicate that depending on the shape of the Mach-function profile and the values of the free parameters the flow and flow shear may have either stabilizing or destabilizing effects.

  13. Passive Lossless Huygens Metasurfaces for Conversion of Arbitrary Source Field to Directive Radiation

    E-Print Network [OSTI]

    Epstein, Ariel

    2014-01-01T23:59:59.000Z

    We present a semi-analytical formulation of the interaction between a given source field and a scalar Huygens metasurface (HMS), a recently introduced promising concept for wavefront manipulation based on a sheet of orthogonal electric and magnetic dipoles. Utilizing the equivalent surface impedance representation of these metasurfaces, we establish that an arbitrary source field can be converted into directive radiation via a passive lossless HMS if two physical conditions are met: local power conservation and local impedance equalization. Expressing the fields via their plane-wave spectrum and harnessing the slowly-varying envelope approximation we obtain semi-analytical formulae for the scattered fields, and prescribe the surface reactance required for the metasurface implementation. The resultant design procedure indicates that the local impedance equalization induces a Fresnel-like reflection, while local power conservation forms a radiating virtual aperture which follows the total excitation field magni...

  14. Detecting arbitrary quantum errors via stabilizer measurements on a sublattice of the surface code

    E-Print Network [OSTI]

    A. D. Córcoles; Easwar Magesan; Srikanth J. Srinivasan; Andrew W. Cross; M. Steffen; Jay M. Gambetta; Jerry M. Chow

    2014-10-23T23:59:59.000Z

    To build a fault-tolerant quantum computer, it is necessary to implement a quantum error correcting code. Such codes rely on the ability to extract information about the quantum error syndrome while not destroying the quantum information encoded in the system. Stabilizer codes are attractive solutions to this problem, as they are analogous to classical linear codes, have simple and easily computed encoding networks, and allow efficient syndrome extraction. In these codes, syndrome extraction is performed via multi-qubit stabilizer measurements, which are bit and phase parity checks up to local operations. Previously, stabilizer codes have been realized in nuclei, trapped-ions, and superconducting qubits. However these implementations lack the ability to perform fault-tolerant syndrome extraction which continues to be a challenge for all physical quantum computing systems. Here we experimentally demonstrate a key step towards this problem by using a two-by-two lattice of superconducting qubits to perform syndrome extraction and arbitrary error detection via simultaneous quantum non-demolition stabilizer measurements. This lattice represents a primitive tile for the surface code, which is a promising stabilizer code for scalable quantum computing. Furthermore, we successfully show the preservation of an entangled state in the presence of an arbitrary applied error through high-fidelity syndrome measurement. Our results bolster the promise of employing lattices of superconducting qubits for larger-scale fault-tolerant quantum computing.

  15. Massive "spin-2" theories in arbitrary $D \\ge 3$ dimensions

    E-Print Network [OSTI]

    D. Dalmazi; A. L. R. dos Santos; E. L. Mendonça

    2014-08-28T23:59:59.000Z

    Here we show that in arbitrary dimensions $D\\ge 3$ there are two families of second order Lagrangians describing massive "spin-2" particles via a nonsymmetric rank-2 tensor. They differ from the usual Fierz-Pauli theory in general. At zero mass one of the families is Weyl invariant. Such massless theory has no particle content in $D=3$ and gives rise, via master action, to a dual higher order (in derivatives) description of massive spin-2 particles in $D=3$ where both the second and the fourth order terms are Weyl invariant, contrary to the linearized New Massive Gravity. However, only the fourth order term is invariant under arbitrary antisymmetric shifts. Consequently, the antisymmetric part of the tensor $e_{[\\mu\

  16. Security of quantum key distribution with arbitrary individual imperfections

    E-Print Network [OSTI]

    Øystein Marøy; Lars Lydersen; Johannes Skaar

    2010-06-01T23:59:59.000Z

    We consider the security of the Bennett-Brassard 1984 (BB84) protocol for Quantum Key Distribution (QKD), with arbitrary individual imperfections simultaneously in the source and detectors. We provide the secure key generation rate, and show that only two parameters must be bounded to ensure security; the basis dependence of the source and a detector blinding parameter. The system may otherwise be completely uncharacterized and contain large losses.

  17. A compact, multichannel, and low noise arbitrary waveform generator

    SciTech Connect (OSTI)

    Govorkov, S. [Sema Systems, 302-5553 16th ave., Delta, British Columbia V4M 2H7 (Canada)] [Sema Systems, 302-5553 16th ave., Delta, British Columbia V4M 2H7 (Canada); Ivanov, B. I. [Leibniz-Institute of Photonic Technology, PO Box 100239, D-07702 Jena (Germany) [Leibniz-Institute of Photonic Technology, PO Box 100239, D-07702 Jena (Germany); Novosibirsk State Technical University, K.Marx-Ave. 20, Novosibirsk 630092 (Russian Federation); Il'ichev, E.; Meyer, H.-G. [Leibniz-Institute of Photonic Technology, PO Box 100239, D-07702 Jena (Germany)] [Leibniz-Institute of Photonic Technology, PO Box 100239, D-07702 Jena (Germany)

    2014-05-15T23:59:59.000Z

    A new type of high functionality, fast, compact, and easy programmable arbitrary waveform generator for low noise physical measurements is presented. The generator provides 7 fast differential waveform channels with a maximum bandwidth up to 200 MHz frequency. There are 6 fast pulse generators on the generator board with 78 ps time resolution in both duration and delay, 3 of them with amplitude control. The arbitrary waveform generator is additionally equipped with two auxiliary slow 16 bit analog-to-digital converters and four 16 bit digital-to-analog converters for low frequency applications. Electromagnetic shields are introduced to the power supply, digital, and analog compartments and with a proper filter design perform more than 110 dB digital noise isolation to the output signals. All the output channels of the board have 50 ? SubMiniature version A termination. The generator board is suitable for use as a part of a high sensitive physical equipment, e.g., fast read out and manipulation of nuclear magnetic resonance or superconducting quantum systems and any other application, which requires electromagnetic interference free fast pulse and arbitrary waveform generation.

  18. Mining Complex Boolean Expressions for Sequential Equivalence Checking

    E-Print Network [OSTI]

    Ramakrishnan, Naren

    Mining Complex Boolean Expressions for Sequential Equivalence Checking Neha Goel, Michael S. Hsiao-flops in a sequential circuit for sequential equivalence checking. In contrast to traditional learning methods, our be arbitrary boolean expressions and can thus prune a large don't care space during equivalence checking

  19. BLOSOM: A Framework for Mining Arbitrary Boolean Expressions over Attribute Sets

    E-Print Network [OSTI]

    Bystroff, Chris

    by NSF CAREER Award IIS-0092978, DOE Career Award DE-FG02- 02ER25538, NSF grants EIA-0103708, EMT-0432098, EIA-0103660, IBN-0219332, and NIH/NIAID grant N01-AI-40035. #12;1 Introduction One of the basic goals of data mining is to discover novel patterns that are potentially useful. Within the database community

  20. U-165: Apple iOS Bugs Let Remote Users Execute Arbitrary Code...

    Office of Environmental Management (EM)

    5: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs U-165: Apple iOS Bugs Let Remote Users Execute Arbitrary Code and Spoof Address Bar URLs May 9,...

  1. Remote state preparation: arbitrary remote control of photon polarization Nicholas A. Peters,1

    E-Print Network [OSTI]

    Kwiat, Paul

    Remote state preparation: arbitrary remote control of photon polarization Nicholas A. Peters,1 University, Kirksville, MO 63501 (Dated: October 22, 2004) We experimentally demonstrate the first remote, we remotely prepare arbitrary states at two wavelengths. Further, we derive theoretical bounds

  2. 2-D Stellar Evolution Code Including Arbitrary Magnetic Fields. I. Mathematical Techniques and Test Cases

    E-Print Network [OSTI]

    L. H. Li; P. Ventura; S. Basu; S. Sofia; P. Demarque

    2006-01-27T23:59:59.000Z

    A high-precision two-dimensional stellar evolution code has been developed for studying solar variability due to structural changes produced by varying internal magnetic fields of arbitrary configurations. Specifically, we are interested in modeling the effects of a dynamo-type field on the detailed internal structure and on the global parameters of the Sun. The high precision is required both to model very small solar changes (of order of $10^{-4}$) and short time scales (or order of one year). It is accomplished by using the mass coordinate to replace the radial coordinate, by using fixed and adjustable time steps, a realistic stellar atmosphere, elements diffusion, and by adjusting the grid points. We have also built into the code the potential to subsequently include rotation and turbulence. The current code has been tested for several cases, including its ability to reproduce the 1-D results.

  3. Nonlinear oscillations and waves in an arbitrary mass ratio cold plasma

    SciTech Connect (OSTI)

    Verma, Prabal Singh [Institute for Plasma Research, Bhat, Gandhinagar 382 428 (India)

    2011-12-15T23:59:59.000Z

    It is well known that nonlinear standing oscillations in an arbitrary mass ratio cold plasma always phase mix away. However, there exist nonlinear electron-ion traveling wave solutions, which do not exhibit phase mixing because they have zero ponderomotive force. The existence of these waves has been demonstrated using a perturbation method. Moreover, it is shown that cold plasma BGK waves [Albritton et al., Nucl. Fusion 15, 1199 (1975)] phase mix away if ions are allowed to move and the scaling of phase mixing is found to be different from earlier work [Sengupta et al., Phys. Rev. Lett. 82, 1867 (1999)]. Phase mixing of these waves has been further verified in 1-D particle in cell simulation.

  4. U-208: HP Operations Agent Bugs Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Two vulnerabilities were reported in HP Operations Agent. A remote user can execute arbitrary code on the target system

  5. An arbitrary function generator for use with an analog computer

    E-Print Network [OSTI]

    Shanks, John Lee

    1956-01-01T23:59:59.000Z

    an output voltage, f(x)x which is a function of an input voltage, x. II ' THE PROBLEN Statement of the problem. It was the purpose of this research to design and build an arbitrary function generator Granino A. Kozn and Theresa N, Korn, Electronic... I CL L LI L') c) IW Qg d pJ O TABLE OF CONTENTS CHAPTER I. INTRODUCTION TO THE PROBLEM De f i ni t i on o f Terms. Analog computer Computer components. Function generator The Problem Statement of the problem Justification of the problem...

  6. Quantum memory of a squeezed vacuum for arbitrary frequency sidebands

    SciTech Connect (OSTI)

    Arikawa, Manabu; Honda, Kazuhito; Akamatsu, Daisuke; Nagatsuka, Satoshi; Akiba, Keiichirou [Department of Physics, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550 (Japan); Furusawa, Akira [Department of Applied Physics, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Kozuma, Mikio [Department of Physics, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550 (Japan); CREST, Japan Science and Technology Agency, 1-9-9 Yaesu, Chuo-ku, Tokyo 103-0028 (Japan)

    2010-02-15T23:59:59.000Z

    We have developed a quantum memory that is completely compatible with current quantum information processing for continuous variables of light, where arbitrary frequency sidebands of a squeezed vacuum can be stored and retrieved using bichromatic electromagnetic induced transparency. The 2 MHz sidebands of squeezed vacuum pulses with temporal widths of 470 ns and a squeezing level of -1.78{+-}0.02 dB were stored for 3 {mu}s in laser-cooled {sup 87}Rb atoms. Squeezing of -0.44{+-}0.02 dB, which is the highest squeezing reported for a retrieved pulse, was achieved.

  7. Towards radio astronomical imaging using an arbitrary basis

    E-Print Network [OSTI]

    Petschow, Matthias

    2015-01-01T23:59:59.000Z

    The new generation of radio telescopes, such as the Square Kilometer Array (SKA), requires dramatic advances in computer hardware and software, in order to process the large amounts of produced data efficiently. In this document, we explore a new approach to wide-field imaging. By generalizing the image reconstruction, which is performed by an inverse Fourier transform, to arbitrary transformations, we gain enormous new possibilities. In particular, we outline an approach that might allow to obtain a sky image of size P times Q in (optimal) O(PQ) time. This could be a step in the direction of real-time, wide-field sky imaging for future telescopes.

  8. ETFOD: a point model physics code with arbitrary input

    SciTech Connect (OSTI)

    Rothe, K.E.; Attenberger, S.E.

    1980-06-01T23:59:59.000Z

    ETFOD is a zero-dimensional code which solves a set of physics equations by minimization. The technique used is different than normally used, in that the input is arbitrary. The user is supplied with a set of variables from which he specifies which variables are input (unchanging). The remaining variables become the output. Presently the code is being used for ETF reactor design studies. The code was written in a manner to allow easy modificaton of equations, variables, and physics calculations. The solution technique is presented along with hints for using the code.

  9. Generalized Intelligent States for an Arbitrary Quantum System

    E-Print Network [OSTI]

    A. H. EL Kinani; M. Daoud

    2003-11-06T23:59:59.000Z

    Generalized Intelligent States (coherent and squeezed states) are derived for an arbitrary quantum system by using the minimization of the so-called Robertson-Schr\\"odinger uncertainty relation. The Fock-Bargmann representation is also considered. As a direct illustration of our construction, the P\\"oschl-Teller potentials of trigonometric type will be shosen. We will show the advantage of the Fock-Bargmann representation in obtaining the generalized intelligent states in an analytical way. Many properties of these states are studied.

  10. Ising Model on Networks with an Arbitrary Distribution of Connections

    E-Print Network [OSTI]

    S. N. Dorogovtsev; A. V. Goltsev; J. F. F. Mendes

    2002-04-11T23:59:59.000Z

    We find the exact critical temperature $T_c$ of the nearest-neighbor ferromagnetic Ising model on an `equilibrium' random graph with an arbitrary degree distribution $P(k)$. We observe an anomalous behavior of the magnetization, magnetic susceptibility and specific heat, when $P(k)$ is fat-tailed, or, loosely speaking, when the fourth moment of the distribution diverges in infinite networks. When the second moment becomes divergent, $T_c$ approaches infinity, the phase transition is of infinite order, and size effect is anomalously strong.

  11. Fluctuating Surface Currents: A New Algorithm for Efficient Prediction of Casimir Interactions among Arbitrary Materials in Arbitrary Geometries. I. Theory

    E-Print Network [OSTI]

    M. T. Homer Reid; Jacob White; Steven G. Johnson

    2012-07-12T23:59:59.000Z

    This paper presents a new method for the efficient numerical computation of Casimir interactions between objects of arbitrary geometries, composed of materials with arbitrary frequency-dependent electrical properties. Our method formulates the Casimir effect as an interaction between effective electric and magnetic current distributions on the surfaces of material bodies, and obtains Casimir energies, forces, and torques from the spectral properties of a matrix that quantifies the interactions of these surface currents. The method can be formulated and understood in two distinct ways: \\textbf{(1)} as a consequence of the familiar \\textit{stress-tensor} approach to Casimir physics, or, alternatively, \\textbf{(2)} as a particular case of the \\textit{path-integral} approach to Casimir physics, and we present both formulations in full detail. In addition to providing an algorithm for computing Casimir interactions in geometries that could not be efficiently handled by any other method, the framework proposed here thus achieves an explicit unification of two seemingly disparate approaches to computational Casimir physics.

  12. Magnetic and Electric Black Holes in Arbitrary Dimension

    E-Print Network [OSTI]

    Adil Belhaj; Pablo Diaz; Antonio segui

    2009-06-02T23:59:59.000Z

    In this work, we compare two different objects: electric black holes and magnetic black holes in arbitrary dimension. The comparison is made in terms of the corresponding moduli space and their extremal geometries. We treat parallelly the magnetic and the electric cases. Specifically, we discuss the gravitational solution of these spherically symmetric objects in the presence of a positive cosmological constant. Then, we find the bounded region of the moduli space allowing the existence of black holes. After identifying it in both the electric and the magnetic case, we calculate the geometry that comes out between the horizons at the coalescence points. Although the electric and magnetic cases are both very different (only dual in four dimensions), gravity solutions seem to clear up most of the differences and lead to very similar geometries.

  13. Agile high resolution arbitrary waveform generator with jitterless frequency stepping

    DOE Patents [OSTI]

    Reilly, Peter T.; Koizumi, Hideya

    2010-05-11T23:59:59.000Z

    Jitterless transition of the programmable clock waveform is generated employing a set of two coupled direct digital synthesis (DDS) circuits. The first phase accumulator in the first DDS circuit runs at least one cycle of a common reference clock for the DDS circuits ahead of the second phase accumulator in the second DDS circuit. As a phase transition through the beginning of a phase cycle is detected from the first phase accumulator, a first phase offset word and a second phase offset word for the first and second phase accumulators are calculated and loaded into the first and second DDS circuits. The programmable clock waveform is employed as a clock input for the RAM address controller. A well defined jitterless transition in frequency of the arbitrary waveform is provided which coincides with the beginning of the phase cycle of the DDS output signal from the second DDS circuit.

  14. Falcon: automated optimization method for arbitrary assessment criteria

    DOE Patents [OSTI]

    Yang, Tser-Yuan (Livermore, CA); Moses, Edward I. (Livermore, CA); Hartmann-Siantar, Christine (Livermore, CA)

    2001-01-01T23:59:59.000Z

    FALCON is a method for automatic multivariable optimization for arbitrary assessment criteria that can be applied to numerous fields where outcome simulation is combined with optimization and assessment criteria. A specific implementation of FALCON is for automatic radiation therapy treatment planning. In this application, FALCON implements dose calculations into the planning process and optimizes available beam delivery modifier parameters to determine the treatment plan that best meets clinical decision-making criteria. FALCON is described in the context of the optimization of external-beam radiation therapy and intensity modulated radiation therapy (IMRT), but the concepts could also be applied to internal (brachytherapy) radiotherapy. The radiation beams could consist of photons or any charged or uncharged particles. The concept of optimizing source distributions can be applied to complex radiography (e.g. flash x-ray or proton) to improve the imaging capabilities of facilities proposed for science-based stockpile stewardship.

  15. T-695: Avaya Aura Application Server Buffer Overflow in 'cstore.exe' Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Avaya Aura Application Server Buffer Overflow in 'cstore.exe' Lets Remote Users Execute Arbitrary Code.

  16. T-718:Adobe Acrobat/Reader Multiple Bugs Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.

  17. V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution...

    Office of Environmental Management (EM)

    can exploit these issues to execute arbitrary PHP code within the context of the web server, bypass certain security restrictions, and perform unauthorized actions; this may aid...

  18. T-573: Windows Remote Desktop Client DLL Loading Error Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in Windows Remote Desktop Client. A remote user can cause arbitrary code to be executed on the target user's system.

  19. U-133: Google Chrome Multiple Flaws Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities were reported in Google Chrome. A remote user can cause arbitrary code to be executed on the target user's system.

  20. U-166: Adobe Shockwave Player Memory Corruption Flaws Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities were reported in Adobe Shockwave Player. A remote user can cause arbitrary code to be executed on the target user's system.

  1. V-006: CA ARCserve Backup Flaws Let Remote Users Execute Arbitrary Code and Deny Service

    Broader source: Energy.gov [DOE]

    Two vulnerabilities were reported in CA ARCserve Backup. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions.

  2. U-080: Linux Kernel XFS Heap Overflow May Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in the Linux Kernel. A remote user can cause arbitrary code to be executed on the target user's system.

  3. T-656: Microsoft Office Visio DXF File Handling Arbitrary Code Execution Vulnerability

    Broader source: Energy.gov [DOE]

    Microsoft Office Visio contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.

  4. arbitrary grey-level optical: Topics by E-print Network

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

    Pijush K. Ghosh 1996-07-02 71 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  5. arbitrary sub-diffraction-limit pattern: Topics by E-print Network

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

    Washington at Seattle, University of 243 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  6. adaptive arbitrary lagrangian-eulerian: Topics by E-print Network

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

    Washington at Seattle, University of 282 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  7. arbitrary particle-channel interaction: Topics by E-print Network

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

    Washington at Seattle, University of 315 Synthesising arbitrary quantum states in a superconduct-ing resonator Computer Technologies and Information Sciences Websites Summary:...

  8. Two-step asymptotics of scaled Dunkl processes

    E-Print Network [OSTI]

    Sergio Andraus; Seiji Miyashita

    2014-12-09T23:59:59.000Z

    Dunkl processes are generalizations of Brownian motion obtained by using the differential-difference operators known as Dunkl operators as a replacement of spatial partial derivatives in the heat equation. Special cases of these processes include Dyson's Brownian motion model and the Wishart-Laguerre eigenvalue processes, which are well-known in random matrix theory. It is known that the dynamics of Dunkl processes is obtained by transforming the heat kernel using Dunkl's intertwining operator. It is also known that, under an appropriate scaling, their distribution function converges to a steady-state distribution which depends only on the coupling parameter $\\beta$ as the process time $t$ tends to infinity. We study scaled Dunkl processes starting from an arbitrary initial distribution, and we derive expressions for the intertwining operator in order to calculate the asymptotics of the distribution function in two limiting situations. In the first one, $\\beta$ is fixed and $t$ tends to infinity (approach to the steady state), and in the second one, $t$ is fixed and $\\beta$ tends to infinity (strong-coupling limit). We obtain the deviations from the limiting distributions in both of the above situations, and we find that they are caused by the two different mechanisms which drive the process, namely, the drift and exchange mechanisms. We find that the deviation due to the drift mechanism decays as $t^{-1}$, while the deviation due to the exchange mechanism decays as $t^{-1/2}$.

  9. MULTICHANNEL BLIND DECONVOLUTION OF ARBITRARY SIGNALS: ADAPTIVE ALGORITHMS AND STABILITY ANALYSIES

    E-Print Network [OSTI]

    Douglas, Scott C.

    MULTICHANNEL BLIND DECONVOLUTION OF ARBITRARY SIGNALS: ADAPTIVE ALGORITHMS AND STABILITY ANALYSIES for the multichannel blind deconvolution of arbitrary non-Gaussian source mixtures. Two of the algorithms are spa- tia-temporal extensions of recently-derived blind signal separation algorithms that combine kurta- sis-based contrast

  10. Closed Form of the Biphoton K-Vector Spectrum for Arbitrary Spatio-Temporal Pump Modes

    E-Print Network [OSTI]

    Jeffrey Perkins

    2011-09-02T23:59:59.000Z

    A closed form solution is derived for the biphoton k-vector spectrum for an arbitrary pump spatial mode. The resulting mode coefficients for the pump input that maximize the probability of biphoton detection in the far field are found. It is thus possible to include the effect of arbitrary crystal poling strucures, and optimize the resulting biphoton flux.

  11. Green's Conjecture for curves on arbitrary K3 Marian Aprodu and Gavril Farkas

    E-Print Network [OSTI]

    Farkas, Gavril

    Green's Conjecture for curves on arbitrary K3 surfaces Marian Aprodu and Gavril Farkas Abstract Green's Conjecture predicts than one can read off special linear series on an algebraic curve-Ramanan, provides a complete solution to Green's Conjecture for smooth curves on arbitrary K3 surfaces. 1

  12. Electric field in hard superconductors with arbitrary cross section and general critical current law

    E-Print Network [OSTI]

    Majós, Antonio Badía

    Electric field in hard superconductors with arbitrary cross section and general critical current-28871 Alcala´ de Henares, Spain Received 18 February 2004; accepted 11 March 2004 The induced electric field E x during magnetic flux entry in superconductors with arbitrary cross section and general

  13. Remote State Preparation: Arbitrary remote control of photon polarizations for quantum communication

    E-Print Network [OSTI]

    Kwiat, Paul

    Remote State Preparation: Arbitrary remote control of photon polarizations for quantum measurement to one photon of a polarization- entangled pair, we remotely prepare single photons in arbitrary. Finally, we discuss the states remotely preparable given a particular two-qubit resource state. Keywords

  14. Pooled ORF Expression Technology (POET) USING PROTEOMICS TO SCREEN POOLS OF OPEN READING FRAMES FOR PROTEIN EXPRESSION*S

    E-Print Network [OSTI]

    Pooled ORF Expression Technology (POET) USING PROTEOMICS TO SCREEN POOLS OF OPEN READING FRAMES developed a pooled ORF expression technology, POET, that uses recombinational cloning and proteomic methods are greatly simplified. Small scale expression and purification of 12 positive clones identified by POET from

  15. An exact mapping between the states of arbitrary N-level quantum systems and the positions of classical coupled oscillators

    E-Print Network [OSTI]

    Thomas E. Skinner

    2013-02-12T23:59:59.000Z

    The dynamics of states representing arbitrary N-level quantum systems, including dissipative systems, can be modelled exactly by the dynamics of classical coupled oscillators. There is a direct one-to-one correspondence between the quantum states and the positions of the oscillators. Quantum coherence, expectation values, and measurement probabilities for system observables can therefore be realized from the corresponding classical states. The time evolution of an N-level system is represented as the rotation of a real state vector in hyperspace, as previously known for density matrix states but generalized here to Schrodinger states. A single rotor in n dimensions is then mapped directly to n oscillators in one physical dimension. The number of oscillators needed to represent N-level systems scales linearly with N for Schrodinger states, in contrast to N^2 for the density matrix formalism. Although the well-known equivalence (SU(2), SO(3) homomorphism) of 2-level quantum dynamics to a rotation in real, physical space cannot be generalized to arbitrary N-level systems, representing quantum dynamics by a system of coupled harmonic oscillators in one physical dimension is general for any N. Values for the classical coupling constants are readily obtained from the system Hamiltonian, allowing construction of classical mechanical systems that can provide visual insight into the dynamics of abstract quantum systems as well as a metric for characterizing the interface between quantum and classical mechanics.

  16. Localized Magnetic Fields in Arbitrary Directions Using Patterned Nanomagnets

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    with the option of applying electric fields, for example, to move a quantum dot between regions where the magnetic magnetic films have a long history, for example, in bubble memory,6 but on scales required for spintronic electric fields, for example, to move a quantum dot between regions where the magnetic-field direction

  17. Holographic Superconductors with Lifshitz Scaling

    E-Print Network [OSTI]

    E. J. Brynjolfsson; U. H. Danielsson; L. Thorlacius; T. Zingg

    2010-03-27T23:59:59.000Z

    Black holes in asymptotically Lifshitz spacetime provide a window onto finite temperature effects in strongly coupled Lifshitz models. We add a Maxwell gauge field and charged matter to a recently proposed gravity dual of 2+1 dimensional Lifshitz theory. This gives rise to charged black holes with scalar hair, which correspond to the superconducting phase of holographic superconductors with z > 1 Lifshitz scaling. Along the way we analyze the global geometry of static, asymptotically Lifshitz black holes at arbitrary critical exponent z > 1. In all known exact solutions there is a null curvature singularity in the black hole region, and, by a general argument, the same applies to generic Lifshitz black holes.

  18. U-074: Microsoft.NET Bugs Let Remote Users Execute Arbitrary Commands, Access User Accounts, and Redirect Users

    Broader source: Energy.gov [DOE]

    A remote user can execute arbitrary commands on the target system. A remote user can access a target user's account. A remote user can redirect users to arbitrary sites.

  19. V-171: Apple Safari Bugs Let Remote Users Execute Arbitrary Code...

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

    Apple Safari Bugs Let Remote Users Execute Arbitrary Code and Conduct Cross-Site Scripting Attacks PLATFORM: Apple Safari prior to 6.0.5 ABSTRACT: Several vulnerabilities were...

  20. U-121: Apple iOS Bugs Let Remote Users Execute Arbitrary Code...

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

    21: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information U-121: Apple iOS Bugs Let Remote...

  1. Symmetric multiparty-controlled teleportation of an arbitrary two-particle entanglement

    SciTech Connect (OSTI)

    Deng Fuguo; Zhou Hongyu [Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875 (China); Institute of Low Energy Nuclear Physics and Department of Material Science and Engineering, Beijing Normal University, Beijing 100875 (China); Beijing Radiation Center, Beijing 100875 (China); Li Chunyan; Wang Yan [Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875 (China); Institute of Low Energy Nuclear Physics and Department of Material Science and Engineering, Beijing Normal University, Beijing 100875 (China); Li Yansong [Department of Physics and Key Laboratory for Quantum Information and Measurements of Ministry of Education, Tsinghua University, Beijing 100084 (China)

    2005-08-15T23:59:59.000Z

    We present a way for symmetric multiparty-controlled teleportation of an arbitrary two-particle entangled state based on Bell-basis measurements by using two Greenberger-Horne-Zeilinger states, i.e., a sender transmits an arbitrary two-particle entangled state to a distant receiver, an arbitrary one of the n+1 agents, via the control of the others in a network. It will be shown that the outcomes in the cases that n is odd or is even are different in principle as the receiver has to perform a controlled-NOT operation on his particles for reconstructing the original arbitrary entangled state in addition to some local unitary operations in the former. Also we discuss the applications of this controlled teleporation for quantum secret sharing of classical and quantum information. As all the instances can be used to carry useful information, its efficiency for qubit approaches the maximal value.

  2. EXPLORING EFFICIENT CODING SCHEMES FOR STORING ARBITRARY TREE DATA STRUCTURES IN FLASH MEMORIES

    E-Print Network [OSTI]

    Falck, Justin

    2009-06-09T23:59:59.000Z

    fulfillment of the requirements for the designation as UNDERGRADUATE RESEARCH SCHOLAR A Senior Scholars Thesis by JUSTIN ALLEN FALCK EXPLORING EFFICIENT CODING SCHEMES FOR STORING ARBITRARY TREE DATA STRUCTURES IN FLASH MEMORIES Approved by... for the designation as UNDERGRADUATE RESEARCH SCHOLAR A Senior Scholars Thesis by JUSTIN ALLEN FALCK iii ABSTRACT Exploring Efficient Coding Schemes for Storing Arbitrary Tree Data Structures in Flash Memories. (April 2009) Justin Allen Falck...

  3. Use of associated polynomials for division involving polynomials over arbitrary fields

    E-Print Network [OSTI]

    Jones, James Edgar

    1968-01-01T23:59:59.000Z

    USE OF ASSOCIATED POLYNOMIALS FOR DIVISION INVOLVING POLYNOMIALS OVER ARBITRARY FIELDS A Thesis by JAMES EDGAR JOiVES Submitted to the Graduate College of the Texas A&M University in partiai fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1968 Major Subject: MATHEJRTICS USE OF ASSOCIATED POLYNOMIALS FOR DIVISION INVOLVING POLYNOMIALS OVER ARBITRARY FIELDS A Thesis by JAMES EDGAR JONES Approved as to style and content by (Chairman of Committee) (Head...

  4. Load Distribution in Large Scale Network Monitoring Infrastructures

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Load Distribution in Large Scale Network Monitoring Infrastructures Josep Sanju`as-Cuxart, Pere to build a scalable, distributed passive network mon- itoring system that can run several arbitrary the principal research challenges behind building a distributed network monitoring system to support

  5. Scale-free Universal Spectrum for Atmospheric Aerosol Size Distribution for Davos, Mauna Loa and Izana

    E-Print Network [OSTI]

    A. M. Selvam

    2014-08-14T23:59:59.000Z

    Atmospheric flows exhibit fractal fluctuations and inverse power law form for power spectra indicating an eddy continuum structure for the selfsimilar fluctuations. A general systems theory for fractal fluctuations developed by the author is based on the simple visualisation that large eddies form by space-time integration of enclosed turbulent eddies, a concept analogous to Kinetic Theory of Gases in Classical Statistical Physics. The ordered growth of atmospheric eddy continuum is in dynamical equilibrium and is associated with Maximum Entropy Production. The model predicts universal (scale-free) inverse power law form for fractal fluctuations expressed in terms of the golden mean. Atmospheric particulates are held in suspension in the fractal fluctuations of vertical wind velocity. The mass or radius (size) distribution for homogeneous suspended atmospheric particulates is expressed as a universal scale-independent function of the golden mean, the total number concentration and the mean volume radius. Model predicted spectrum is in agreement (within two standard deviations on either side of the mean) with total averaged radius size spectra for the AERONET (aerosol inversions) stations Davos and Mauna Loa for the year 2010 and Izana for the year 2009 daily averages. The general systems theory model for aerosol size distribution is scale free and is derived directly from atmospheric eddy dynamical concepts. At present empirical models such as the log normal distribution with arbitrary constants for the size distribution of atmospheric suspended particulates are used for quantitative estimation of earth-atmosphere radiation budget related to climate warming/cooling trends. The universal aerosol size spectrum will have applications in computations of radiation balance of earth-atmosphere system in climate models.

  6. Plasma diagnostics in TFTR using emission of cyclotron radiation at arbitrary frequencies

    SciTech Connect (OSTI)

    Fidone, I.; Giruzzi, G.; Taylor, G.

    1995-07-01T23:59:59.000Z

    Emission of cyclotron radiation at arbitrary wave frequency for diagnostic purposes is discussed. It is shown that the radiation spectrum at arbitrary frequencies is more informative than the first few harmonics and it is suited for diagnosis of superthermal electrons without any {open_quotes}ad hoc{close_quotes} value of the wall reflection coefficient. Thermal radiation from TFTR is investigated and it is shown that the bulk and the tail of the electron momentum distribution during strong neutral beam injection is a Maxwellian with a single temperature in all ranges of electron energies.

  7. U-155: WebCalendar Access Control and File Inclusion Bugs Let Remote Users Potentially Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Two vulnerabilities were reported in WebCalendar. A remote user may be able to execute arbitrary PHP code on the target system.

  8. U-007: IBM Rational AppScan Import/Load Function Flaws Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    Two vulnerabilities were reported in IBM Rational AppScan. A remote user can cause arbitrary code to be executed on the target user's system.

  9. T-554: Race condition in Google Chrome before 9.0.597.84 allows remote attackers to execute arbitrary code

    Broader source: Energy.gov [DOE]

    Race condition in Google Chrome before 9.0.597.84 allows remote attackers to execute arbitrary code via vectors related to audio.

  10. U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in PHP. A remote user can obtain potentially sensitive information. A remote user can execute arbitrary code on the target system.

  11. Large scale, highly conductive and patterned transparent films of silver nanowires on arbitrary substrates and their application in touch screens

    E-Print Network [OSTI]

    Zhou, Chongwu

    devices, such as liquid crystal displays, light emitting diodes, solar cells and touch panels [1 diodes [21­23] and solar cells [24, 25], and have attracted significant interest. However, their pe of such a conductive silver nanowire film as an electrode in a touch panel has been demonstrated. (Some figures

  12. Self-Assembly of Arbitrary Shapes Using RNAse Enzymes: Meeting the Kolmogorov Bound with Small Scale Factor (extended abstract)

    E-Print Network [OSTI]

    Demaine, Erik D.

    We consider a model of algorithmic self-assembly of geometric shapes out of square Wang tiles studied in SODA 2010, in which there are two types of tiles (e.g., constructed out of DNA and RNA material) and one operation ...

  13. Trigger-Wave Propagation in Arbitrary Metrics in Asynchronous Cellular Logic Arrays

    E-Print Network [OSTI]

    Dudek, Piotr

    Trigger-Wave Propagation in Arbitrary Metrics in Asynchronous Cellular Logic Arrays Przemyslaw image processing tasks using trigger-wave propagation in a medium with a hardware-controlled metric. The principles of wave propagation in cellular four-connected logic arrays emulating different distance measure

  14. Off-diagonal Bethe ansatz solution of the XXX spin-chain with arbitrary boundary conditions

    E-Print Network [OSTI]

    Cao, Junpeng; Shi, Kangjie; Wang, Yupeng

    2013-01-01T23:59:59.000Z

    With the off-diagonal Bethe ansatz method proposed recently by the present authors, we exactly diagonalize the $XXX$ spin chain with arbitrary boundary fields. By constructing a functional relation between the eigenvalues of the transfer matrix and the quantum determinant, the associated $T-Q$ relation and the Bethe ansatz equations are derived.

  15. Off-diagonal Bethe ansatz solution of the XXX spin-chain with arbitrary boundary conditions

    E-Print Network [OSTI]

    Junpeng Cao; Wenli Yang; Kangjie Shi; Yupeng Wang

    2013-08-12T23:59:59.000Z

    With the off-diagonal Bethe ansatz method proposed recently by the present authors, we exactly diagonalize the $XXX$ spin chain with arbitrary boundary fields. By constructing a functional relation between the eigenvalues of the transfer matrix and the quantum determinant, the associated $T-Q$ relation and the Bethe ansatz equations are derived.

  16. Factorization of Darboux transformations of arbitrary order for 2D Schroedinger operators

    E-Print Network [OSTI]

    Ekaterina Shemyakova

    2015-05-04T23:59:59.000Z

    We give a proof of Darboux's conjecture that every Darboux transformation of arbitrary order of a 2D Schroedinger type operator can be factorized into Darboux transformations of order one. The proof is constructive. The result is obtained in the framework of an algebraic approach to Darboux transformations which is suggested in this paper and is a further improvement of S. Tsarev's earlier idea.

  17. Comment on the shape of Hydrogen equation in spaces of arbitrary dimension

    E-Print Network [OSTI]

    M. Ya. Amusia

    2015-02-20T23:59:59.000Z

    We note that presenting Hydrogen atom Schrodinger equation in the case of arbitrary dimensions require simultaneous modification of the Coulomb potential that only in three dimensions has the form Z/r . This was not done in a number of relatively recent papers [1-5]. Therefore some results obtained there seem to be doubtful. Some required considerations in the area are mentioned.

  18. SPAIN: COTS Data-Center Ethernet for Multipathing over Arbitrary Topologies

    E-Print Network [OSTI]

    SPAIN: COTS Data-Center Ethernet for Multipathing over Arbitrary Topologies Jayaram Mudigonda switches, which could obviate the commodity pricing of these parts. In this paper, we describe SPAIN ("Smart Path Assign- ment In Networks"). SPAIN provides multipath forward- ing using inexpensive

  19. Intro Algo ring Arbitrary graphs Conclusion PING PONG IN DANGEROUS GRAPHS

    E-Print Network [OSTI]

    Fondements et Applications, Université Paris 7

    Intro Algo ring Arbitrary graphs Conclusion PING PONG IN DANGEROUS GRAPHS Optimal Black Hole Search blocking and destroying any mobile agent entering it. Motivations : Site which is destroyed or dangerous blocking and destroying any mobile agent entering it. Motivations : Site which is destroyed or dangerous

  20. The Arbitrariness of the Sign: Learning Advantages From the Structure of the Vocabulary

    E-Print Network [OSTI]

    the simulations and the behavioral studies, we found that the optimal structure of the vocabulary for learningThe Arbitrariness of the Sign: Learning Advantages From the Structure of the Vocabulary Padraic and their meanings can facilitate language learning (e.g., in the form of sound symbolism or cues to grammatical

  1. How the diffusivity profile reduces the arbitrariness of protein folding free energies

    E-Print Network [OSTI]

    Thirumalai, Devarajan

    How the diffusivity profile reduces the arbitrariness of protein folding free energies M 2010 The concept of a protein diffusing in its free-energy folding landscape has been fruitful for both as it stochastically folds and unfolds. The free-energy profiles for different RCs exhibit significant variations, some

  2. Fast Detection and Processing of Arbitrary Contrast Agent Injections in Coronary

    E-Print Network [OSTI]

    Lübeck, Universität zu

    : condura@isip.uni-luebeck.de Abstract. Percutaneous transluminal coronary angioplasty (PTCA) re- quires pre-interventional and inter- ventional X-ray images. In the pre-interventional coronary angiogramsFast Detection and Processing of Arbitrary Contrast Agent Injections in Coronary Angiography

  3. A Closed-Form Solution to the Arbitrary Order Cauchy Problem with Propagators

    E-Print Network [OSTI]

    Henrik Stenlund

    2014-11-24T23:59:59.000Z

    The general abstract arbitrary order (N) Cauchy problem was solved in a closed form as a sum of exponential propagator functions. The infinite sparse exponential series was solved with the aid of a homogeneous differential equation. It generated a linear combination of exponential functions. The Cauchy problem solution was formed with N linear combinations of N exponential propagators.

  4. Fast and accurate direct MDCT to DFT conversion with arbitrary window functions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Fast and accurate direct MDCT to DFT conversion with arbitrary window functions Shuhua Zhang* and Laurent Girin Abstract--In this paper, we propose a method for direct con- version of MDCT coefficients of the MDCT-to- DFT conversion matrices into a Toeplitz part plus a Hankel part. The latter is split

  5. Mass and spin content of a free relativistic particle of arbitrary spins and the group

    E-Print Network [OSTI]

    Nikitin, Anatoly

    of particles with several spins and masses which can exist in positive as well as negative energy states Postal 20-364, 01000 Mexico D. F., Mexico 2 Instituto de Ciencias Nucleares, UNAM, Apdo. Postal 70 approach to the free parti- cle of arbitrary spins whose relativistic equation can be obtained from

  6. Any: from scalarity to arbitrariness Lucia M. Tovena and Jacques Jayez

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Any: from scalarity to arbitrariness Lucia M. Tovena and Jacques Jayez ITC-IRST EHESS Trento Paris) it is neither an indefinite nor a quantifier but a more abstract item which signals that some property holds), is asserted to hold of absolutely every individual of the N class, not only of the most typical ones

  7. Single crystal growth and heteroepitaxy of polyacene thin films on arbitrary substrates

    E-Print Network [OSTI]

    Headrick, Randall L.

    in a number of low-cost, large area electronic applications such as flat panel displays. Organic thin film as other substrates.6-12 Recently, significant progress has been made towards fabricating high quality is to prepare single crystal films on arbitrary substrates. Here we describe two significant advances towards

  8. Minkovskii-type inequality for arbitrary density matrix of composite and noncomposite systems

    E-Print Network [OSTI]

    V. N. Chernega; O. V. Manko; V. I. Manko

    2014-05-20T23:59:59.000Z

    New kind of matrix inequality known for bipartite system density matrix is obtained for arbitrary density matrix of composite or noncomposite qudit systems including the single qudit state. The examples of two qubit system and qudit with j=3/2 are discussed.

  9. Optical Arbitrary Waveform Generation and Measurement Transmission Systems and Its Application to Flexible Bandwidth

    E-Print Network [OSTI]

    Kolner, Brian H.

    Optical Arbitrary Waveform Generation and Measurement Transmission Systems and Its Application to Flexible Bandwidth Networking By David Jason Geisler B.S. (Tufts University) 2004 M.S. (University . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.4.1 The Case for Flexible Bandwidth Networking . . . . . . . . 11 1.4.2 Impairment Awareness

  10. Warm wave breaking of nonlinear plasma waves with arbitrary phase velocities C. B. Schroeder, E. Esarey, and B. A. Shadwick

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Warm wave breaking of nonlinear plasma waves with arbitrary phase velocities C. B. Schroeder, E, collisionless plasma is developed to analyze nonlinear plasma waves excited by intense drive beams. The maximum amplitude and wavelength are calculated for nonrelativistic plasma temperatures and arbitrary plasma wave

  11. Computational Diagnostics based on Large Scale Gene

    E-Print Network [OSTI]

    Spang, Rainer

    Computational Diagnostics based on Large Scale Gene Expression Profiles using MCMC Rainer Spang = Data Loadings Singular values Expression levels of super genes, orthogonal matrix #12;)( genessuperall- #12;Given the Few Profiles With Known Diagnosis: · The uncertainty on the right model is high

  12. Schwinger Mechanism for Fermion Pair Production in the Presence of Arbitrary Time Dependent Background Electric Field

    E-Print Network [OSTI]

    Fred Cooper; Gouranga C. Nayak

    2006-12-29T23:59:59.000Z

    We study the Schwinger mechanism for the pair production of fermions in the presence of an arbitrary time-dependent background electric field E(t) by directly evaluating the path integral. We obtain an exact non-perturbative result for the probability of fermion-antifermion pair production per unit time per unit volume per unit transverse momentum (of the fermion or antifermion) from the arbitrary time dependent electric field E(t) via Schwinger mechanism. We find that the exact non-perturbative result is independent of all the time derivatives d^nE(t)/dt^n, where n=1,2,....\\infty. This result has the same functional dependence on E as the Schwinger's constant electric field E result with the replacement: E -> E(t).

  13. Generalized Remote Preparation of Arbitrary $m$-qubit Entangled States via Genuine Entanglements

    E-Print Network [OSTI]

    Dong Wang; Ross D. Hoehn; Liu Ye; Sabre Kais

    2015-03-30T23:59:59.000Z

    Herein, we present a feasible, general protocol for quantum communication within a network via generalized remote preparation of an arbitrary $m$-qubit entangled state designed with genuine tripartite Greenberger--Horne--Zeilinger-type entangled resources. During the implementations, we construct novel collective unitary operations; these operations are tasked with performing the necessary phase transfers during remote state preparations. We have distilled our implementation methods into a five-step procedure, which can be used to faithfully recover the desired state during transfer. Compared to previous existing schemes, our methodology features a greatly increased success probability. After the consumption of auxiliary qubits and the performance of collective unitary operations, the probability of successful state transfer is increased four-fold and eight-fold for arbitrary two- and three-qubit entanglements when compared to other methods within the literature, respectively. We conclude this paper with a discussion of the presented scheme for state preparation, including: success probabilities, reducibility and generalizability.

  14. Practical Formula for Bunch Power Loss in Resonators of Almost Arbitrary Quality Factor

    E-Print Network [OSTI]

    Furman, Miguel

    SSC-N-142 Practical Formula for Bunch Power Loss in Resonators of Almost Arbitrary Quality Factor a resonant structure with impedance Z() = RS 1 + iQ r - r (1) then the power loss is [1] P = (cf0)2 m in the summation in Eq. (2) yield an accurate estimate for the power loss. If, on the other hand, ~() is very broad

  15. Vacuum energies due to delta-like currents: simulating classical objects along branes with arbitrary codimensions

    E-Print Network [OSTI]

    F. A. Barone; G. Flores-Hidalgo

    2008-12-20T23:59:59.000Z

    In this paper we investigate the vacuum energies of several models of quantum fields interacting with static external currents (linear couplings) concentrated along parallel branes with an arbitrary number of codimensions. We show that we can simulate the presence of static charges distributions as well as the presence of classical static dipoles in any dimension for massive and massless fields. We also show that we can produce confining potentials with massless self interacting scalar fields as well as long range anisotropic potentials.

  16. A Reconstructed Discontinuous Galerkin Method for the Compressible Navier-Stokes Equations on Arbitrary Grids

    SciTech Connect (OSTI)

    Hong Luo; Luqing Luo; Robert Nourgaliev; Vincent A. Mousseau

    2010-01-01T23:59:59.000Z

    A reconstruction-based discontinuous Galerkin (RDG) method is presented for the solution of the compressible Navier-Stokes equations on arbitrary grids. The RDG method, originally developed for the compressible Euler equations, is extended to discretize viscous and heat fluxes in the Navier-Stokes equations using a so-called inter-cell reconstruction, where a smooth solution is locally reconstructed using a least-squares method from the underlying discontinuous DG solution. Similar to the recovery-based DG (rDG) methods, this reconstructed DG method eliminates the introduction of ad hoc penalty or coupling terms commonly found in traditional DG methods. Unlike rDG methods, this RDG method does not need to judiciously choose a proper form of a recovered polynomial, thus is simple, flexible, and robust, and can be used on arbitrary grids. The developed RDG method is used to compute a variety of flow problems on arbitrary meshes to demonstrate its accuracy, efficiency, robustness, and versatility. The numerical results indicate that this RDG method is able to deliver the same accuracy as the well-known Bassi-Rebay II scheme, at a half of its computing costs for the discretization of the viscous fluxes in the Navier-Stokes equations, clearly demonstrating its superior performance over the existing DG methods for solving the compressible Navier-Stokes equations.

  17. BETHE-Hydro: An Arbitrary Lagrangian-Eulerian Multi-dimensional Hydrodynamics Code for Astrophysical Simulations

    E-Print Network [OSTI]

    Jeremiah W. Murphy; Adam Burrows

    2008-07-09T23:59:59.000Z

    In this paper, we describe a new hydrodynamics code for 1D and 2D astrophysical simulations, BETHE-hydro, that uses time-dependent, arbitrary, unstructured grids. The core of the hydrodynamics algorithm is an arbitrary Lagrangian-Eulerian (ALE) approach, in which the gradient and divergence operators are made compatible using the support-operator method. We present 1D and 2D gravity solvers that are finite differenced using the support-operator technique, and the resulting system of linear equations are solved using the tridiagonal method for 1D simulations and an iterative multigrid-preconditioned conjugate-gradient method for 2D simulations. Rotational terms are included for 2D calculations using cylindrical coordinates. We document an incompatibility between a subcell pressure algorithm to suppress hourglass motions and the subcell remapping algorithm and present a modified subcell pressure scheme that avoids this problem. Strengths of this code include a straightforward structure, enabling simple inclusion of additional physics packages, the ability to use a general equation of state, and most importantly, the ability to solve self-gravitating hydrodynamic flows on time-dependent, arbitrary grids. In what follows, we describe in detail the numerical techniques employed and, with a large suite of tests, demonstrate that BETHE-hydro finds accurate solutions with 2$^{nd}$-order convergence.

  18. Nuclear scales

    SciTech Connect (OSTI)

    Friar, J.L.

    1998-12-01T23:59:59.000Z

    Nuclear scales are discussed from the nuclear physics viewpoint. The conventional nuclear potential is characterized as a black box that interpolates nucleon-nucleon (NN) data, while being constrained by the best possible theoretical input. The latter consists of the longer-range parts of the NN force (e.g., OPEP, TPEP, the {pi}-{gamma} force), which can be calculated using chiral perturbation theory and gauged using modern phase-shift analyses. The shorter-range parts of the force are effectively parameterized by moments of the interaction that are independent of the details of the force model, in analogy to chiral perturbation theory. Results of GFMC calculations in light nuclei are interpreted in terms of fundamental scales, which are in good agreement with expectations from chiral effective field theories. Problems with spin-orbit-type observables are noted.

  19. 2007 IEEE International Conference on Signal Processing and Communications (ICSPC 2007), 24-27 November 2007, Dubai, United Arab Emirates EFFECTS OF ARBITRARY-SHAPED REGIONS ON TEXTURE

    E-Print Network [OSTI]

    Gabbouj, Moncef

    -27 November 2007, Dubai, United Arab Emirates EFFECTS OF ARBITRARY-SHAPED REGIONS ON TEXTURE RETRIEVAL Serkan

  20. Experiments in expression recognition

    E-Print Network [OSTI]

    Skelley, James P. (James Paul)

    2005-01-01T23:59:59.000Z

    Despite the significant effort devoted to methods for expression recognition, suitable training and test databases designed explicitly for expression research have been largely neglected. Additionally, possible techniques ...

  1. From scale properties of physical amplitudes to a predictive formulation of the Nambu-Jona-Lasinio model

    SciTech Connect (OSTI)

    Battistel, O. A. [Departamento de Fisica, Universidade Federal de Santa Maria, 97119-900 Santa Maria, Rio Grande do Sul (Brazil); Dallabona, G. [Departamento de Ciencias Exatas, Universidade Federal de Lavras, Cx. Postal 37, 37200-000, Lavras, Minas Gerais (Brazil)

    2009-10-15T23:59:59.000Z

    The predictive power of the Nambu-Jona-Lasinio model is considered in the light of a novel strategy to handle the divergences typical of perturbative calculations. The referred calculational strategy eliminates unphysical dependencies on the arbitrary choices for the routing of internal momenta and symmetry violating terms. In the present work we extend a previous one on the same issue by including vector interactions and performing the discussion in a more general context: the role of scale arbitrariness for the consistency of the calculations is considered. We show that the imposition of arbitrary scale independence for the consistent regularized amplitudes lead to additional properties for the irreducible divergent objects. These properties allow us to parametrize the remaining freedom in terms of a unique constant where resides all the arbitrariness involved. By searching for the best value for the arbitrary parameter we find a critical condition for the existence of an acceptable physical value for the dynamically generated quark mass. Such critical condition fixes the remaining arbitrariness turning the Nambu-Jona-Lasinio into a predictive model in the sense that its phenomenological consequences do not depend on possible choices made in intermediary steps. Numerical results are obtained for physical quantities like the vector and axial-vector masses and their coupling constants as genuine predictions.

  2. Lower Bound of Concurrence and Distillation for Arbitrary Dimensional Bipartite Quantum States

    E-Print Network [OSTI]

    Zhao, Ming-Jing; Fei, Shao-Ming; Li-Jost, Xianqing; 10.1103/PhysRevA.84.062322

    2011-01-01T23:59:59.000Z

    We present a lower bound of concurrence for arbitrary dimensional bipartite quantum states. This lower bound may be used to improve all the known lower bounds of concurrence. Moreover, the lower bound gives rise to an operational sufficient criterion of distillability of quantum entanglement. The significance of our result is illustrated by quantitative evaluation of entanglement for entangled states that fail to be identified by the usual concurrence estimation method, and by showing the distillability of mixed states that can not be recognized by other distillability criteria.

  3. Lower Bound of Concurrence and Distillation for Arbitrary Dimensional Bipartite Quantum States

    E-Print Network [OSTI]

    Ming-Jing Zhao; Xue-Na Zhu; Shao-Ming Fei; Xianqing Li-Jost

    2011-12-23T23:59:59.000Z

    We present a lower bound of concurrence for arbitrary dimensional bipartite quantum states. This lower bound may be used to improve all the known lower bounds of concurrence. Moreover, the lower bound gives rise to an operational sufficient criterion of distillability of quantum entanglement. The significance of our result is illustrated by quantitative evaluation of entanglement for entangled states that fail to be identified by the usual concurrence estimation method, and by showing the distillability of mixed states that can not be recognized by other distillability criteria.

  4. Effect of a polynomial arbitrary dust size distribution on dust acoustic solitons

    SciTech Connect (OSTI)

    Ishak-Boushaki, M.; Djellout, D.; Annou, R. [Faculty of Physics, USTHB, P.B. 32 El Alia, Bab-ezzouar, Algiers (Algeria)

    2012-07-15T23:59:59.000Z

    The investigation of dust-acoustic solitons when dust grains are size-distributed and ions adiabatically heated is conducted. The influence of an arbitrary dust size-distribution described by a polynomial function on the properties of dust acoustic waves is investigated. An energy-like integral equation involving Sagdeev potential is derived. The solitary solutions are shown to undergo a transformation into cnoidal ones under some physical conditions. The dust size-distribution can significantly affect both lower and upper critical Mach numbers for both solitons and cnoidal solutions.

  5. Predictive wavefront control for Adaptive Optics with arbitrary control loop delays

    SciTech Connect (OSTI)

    Poyneer, L A; Veran, J

    2007-10-30T23:59:59.000Z

    We present a modification of the closed-loop state space model for AO control which allows delays that are a non-integer multiple of the system frame rate. We derive the new forms of the Predictive Fourier Control Kalman filters for arbitrary delays and show that they are linear combinations of the whole-frame delay terms. This structure of the controller is independent of the delay. System stability margins and residual error variance both transition gracefully between integer-frame delays.

  6. Robust Dynamical Decoupling for Arbitrary Quantum States of a Single NV Center in Diamond

    E-Print Network [OSTI]

    J. H. Shim; I. Niemeyer; J. Zhang; D. Suter

    2012-07-24T23:59:59.000Z

    Dynamical decoupling is a powerful technique for extending the coherence time (T$_2$) of qubits. We apply this technique to the electron spin qubit of a single nitrogen-vacancy center in type IIa diamond. In a crystal with natural abundance of $^{13}$C nuclear spins, we extend the decoherence time up to 2.2 ms. This is close to the T$_1$ value of this NV center (4 ms). Since dynamical decoupling must perform well for arbitrary initial conditions, we measured the dependence on the initial state and compared the performance of different sequences with respect to initial state dependence and robustness to experimental imperfections.

  7. Study of stopping power for a proton moving in a plasma with arbitrary degeneracy

    SciTech Connect (OSTI)

    Zhang, Ya; Song, Yuan-Hong; Wang, You-Nian [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)] [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

    2013-10-15T23:59:59.000Z

    Excitation of bulk solid electrons with arbitrary degeneracy, by external charged particles, is investigated by a two-dimensional nonlinear quantum hydrodynamic (QHD) model. The nonlinear stopping power and wake potential are calculated by solving the nonlinear QHD equations with the flux corrected transport numerical method. Two cases of fully degenerated and partially degenerated electrons are compared and discussed in the same self-consistent QHD model. Our results are consistent with the well known dielectric calculation of the stopping power at higher velocity, but include the nonlinear terms of the interactions and give larger stopping power at smaller velocity.

  8. Reversing the weak measurement of an arbitrary field with finite photon number 

    E-Print Network [OSTI]

    Sun, Qingqing; Al-Amri, M.; Zubairy, M. Suhail.

    2009-01-01T23:59:59.000Z

    phase qubit was performed. A general procedure for N-dimensional sys- tem was also proposed in #3;12#4;, which requires 2N steps. An important question remains: can we reverse a multidi- mensional state in a simpler way? In Sec. II, we address... is the conclusion. II. SCHEMES The state of interest is an arbitrary cavity field with finite photon number #5;n,m=0nmax #1;nm#6;n#7;#8;m#6;, which is continuously monitored by an ideal photon detector outside. If there is no click, the field evolves into #5;n...

  9. On the Motion of Free Material Test Particles in Arbitrary Spatial Flows

    E-Print Network [OSTI]

    Tom Martin

    1999-06-03T23:59:59.000Z

    We show how the motion of free material test particles in arbitrary spatial flows is easily determined within the context of ordinary vector calculus. This may be useful for everyone, including engineers and other non-specialists, when thinking about gravitational problems. It already has valid application to simple problems such as the problems of motion in rotating and accelerating frames and to the gravitational problem of the single spherically symmetric attractor. When applied to the two body gravitational problem, it may help us determine the actual direction of the flow.

  10. Remote preparation of arbitrary time-encoded single-photon ebits

    E-Print Network [OSTI]

    Alessandro Zavatta; Milena D'Angelo; Valentina Parigi; Marco Bellini

    2005-12-01T23:59:59.000Z

    We propose and experimentally verify a novel method for the remote preparation of entangled bits (ebits) made of a single-photon coherently delocalized in two well-separated temporal modes. The proposed scheme represents a remotely tunable source for tailoring arbitrary ebits, whether maximally or non-maximally entangled, which is highly desirable for applications in quantum information technology. The remotely prepared ebit is studied by performing homodyne tomography with an ultra-fast balanced homodyne detection scheme recently developed in our laboratory.

  11. Oscillation theorems for the Wronskian of an arbitrary sequence of eigenfunctions of Schrödinger's equation

    E-Print Network [OSTI]

    M. Ángeles García-Ferrero; David Gómez-Ullate

    2014-08-05T23:59:59.000Z

    The work of Adler provides necessary and sufficient conditions for the Wronskian of a given sequence of eigenfunctions of Schr\\"odinger's equation to have constant sign in its domain of definition. We extend this result by giving explicit formulas for the number of real zeros of the Wronskian of an arbitrary sequence of eigenfunctions. Our results apply in particular to Wronskians of classical orthogonal polynomials, thus generalizing classical results by Karlin and Szeg\\H{o}. Our formulas hold under very mild conditions that are believed to hold for generic values of the parameters. In the Hermite case, our results allow to prove some conjectures recently formulated by Felder et al.

  12. U-121: Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct

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

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23,EnergyChicopeeTechnologyfactTuscarora PhaseArbitrary Code | Department

  13. U-170: Apple QuickTime Multiple Flaws Let Remote Users Execute Arbitrary

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

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23,EnergyChicopeeTechnologyfactTuscarora PhaseArbitraryDrupalCode | Department of

  14. Analytic models of the Rossiter-McLaughlin effect for arbitrary eclipser/star size ratios and arbitrary multiline stellar spectra

    E-Print Network [OSTI]

    Baluev, Roman V

    2015-01-01T23:59:59.000Z

    We present an attempt to improve models of the Rossiter-McLaughlin effect by relaxing several restrictive assumptions. For our main model of the Doppler anomaly, we consider the entire multiline stellar spectrum rather than just a single line, use no assumptions about the shape of the lines profiles, and allow arbitrary size ratio for the star and its eclipser. However, we neglect the effect of macro-turbulence and differential rotation. We construct our model as a power series in the stellar rotation velocity, $V\\sin i$, giving a closed set of analytic formulae for up to three terms, and assuming quadratic limb-darkening law. We consider three major approaches of determining the Doppler shift: cross-correlation with a predefined template, cross-correlation with an out-of-transit stellar spectrum, and parametric modelling of the spectrum. We reveal that the Doppler anomaly has an additional first-order (in $V\\sin i$) correction term, while previous works primarily deal with only a second-order correction. Thi...

  15. A Reconstructed Discontinuous Galerkin Method for the Compressible Euler Equations on Arbitrary Grids

    SciTech Connect (OSTI)

    Hong Luo; Luquing Luo; Robert Nourgaliev; Vincent Mousseau

    2009-06-01T23:59:59.000Z

    A reconstruction-based discontinuous Galerkin (DG) method is presented for the solution of the compressible Euler equations on arbitrary grids. By taking advantage of handily available and yet invaluable information, namely the derivatives, in the context of the discontinuous Galerkin methods, a solution polynomial of one degree higher is reconstructed using a least-squares method. The stencils used in the reconstruction involve only the van Neumann neighborhood (face-neighboring cells) and are compact and consistent with the underlying DG method. The resulting DG method can be regarded as an improvement of a recovery-based DG method in the sense that it shares the same nice features as the recovery-based DG method, such as high accuracy and efficiency, and yet overcomes some of its shortcomings such as a lack of flexibility, compactness, and robustness. The developed DG method is used to compute a variety of flow problems on arbitrary meshes to demonstrate the accuracy and efficiency of the method. The numerical results indicate that this reconstructed DG method is able to obtain a third-order accurate solution at a slightly higher cost than its second-order DG method and provide an increase in performance over the third order DG method in terms of computing time and storage requirement.

  16. On the potential energy in a gravitationally bound two-body system with arbitrary mass distribution

    E-Print Network [OSTI]

    K. Wilhelm; B. N. Dwivedi

    2015-02-12T23:59:59.000Z

    The potential energy problem in a gravitationally bound two-body system has recently been studied in the framework of a proposed impact model of gravitation (Wilhelm and Dwivedi 2015). The result was applied to the free fall of the so-called Mintrop--Ball in G\\"ottingen with the implicit assumption that the mass distribution of the system is extremely unbalanced. An attempt to generalize the study to arbitrary mass distributions indicated a conflict with the energy conservation law in a closed system. This necessitated us to reconsider an earlier assumption made in selecting a specific process out of two options (Wilhelm et al. 2013). With the result obtained here we can now make an educated selection and reverse our choice. The consequences are presented and discussed in detail for several processes. Energy and momentum conservation could now be demonstrated in all cases.

  17. Light-cone gauge approach to arbitrary spin fields, currents, and shadows

    E-Print Network [OSTI]

    R. R. Metsaev

    2014-09-01T23:59:59.000Z

    Totally symmetric arbitrary spin fields in AdS space, conformal fields, conformal currents, and shadow fields in flat space are studied. Light-cone formulation for such fields, currents, and shadows is obtained. Use of the Poincare parametrization of AdS space allows us to treat fields in flat and AdS spaces on equal footing. Light-cone gauge realization of relativistic symmetries for fields, currents, and shadows is also obtained. The light-cone formulation for fields is obtained by using the gauge invariant Lagrangian which is presented in terms of the modified de Donder divergence, while the light-cone formulation for currents and shadows is obtained by using gauge invariant approach to currents and shadows. This allows us to demonstrate explicitly how ladder operators entering the gauge invariant formulation of fields, currents, and shadows manifest themselves in the light-cone formulation for fields, currents, and shadows.

  18. On Thermodynamics of AdS Black Holes in Arbitrary Dimensions

    E-Print Network [OSTI]

    A. Belhaj; M. Chabab; H. El Moumni; M. B. Sedra

    2012-09-23T23:59:59.000Z

    Considering the cosmological constant $\\Lambda$ as a thermodynamic pressure and its conjugate quantity as a thermodynamic volume as proposed in Kubiznak and Mann (2012), we discuss the critical behavior of charged AdS black hole in arbitrary dimensions $d$. In particular, we present a comparative study in terms of the spacetime dimension $d$ and the displacement of critical points controlling the transition between the small and the large black holes. Such behaviors vary nicely in terms of $d$. Among our result in this context consists in showing that the equation of state for a charged RN-AdS black hole predicts an universal number given by $\\frac{2d-5}{4d-8}$. The three dimensional solution is also discussed.

  19. Mass shift effects in nonperturbative multiphoton pair production for arbitrary polarized electric fields

    E-Print Network [OSTI]

    Z. L. Li; D. Lu; B. F. Shen; L. B. Fu; J. Liu; B. S. Xie

    2014-10-23T23:59:59.000Z

    The mass shift effects in multiphoton pair production of a nonperturbative nature for arbitrary polarized electric fields are investigated numerically by employing the real-time Dirac-Heisenberg-Wigner formalism, and theoretically by proposing an effective energy concept. It is found that the theoretical results are agreement with the numerical ones very well. It is the first time to consider the roles of the momenta of created particles and the polarizations of external fields played in the mass shift effects. These results can deepen the understanding of pair production in the nonperturbative threshold regime. Moreover, the distinct mass shift effects are observable in the forthcoming experiments and can be used as a probe to distinguish the electron-positron pair production from other background events.

  20. Ab-initio multimode linewidth theory for arbitrary inhomogeneous laser cavities

    E-Print Network [OSTI]

    Pick, A; Liu, D; Rodriguez, A W; Stone, A D; Chong, Y D; Johnson, S G

    2015-01-01T23:59:59.000Z

    We present a multimode laser-linewidth theory for arbitrary cavity structures and geometries that contains nearly all previously known effects and also finds new nonlinear and multimode corrections, e.g. a bad-cavity correction to the Henry $\\alpha$ factor and a multimode Schawlow--Townes relation (each linewidth is proportional to a sum of inverse powers of all lasing modes). Our theory produces a quantitatively accurate formula for the linewidth, with no free parameters, including the full spatial degrees of freedom of the system. Starting with the Maxwell--Bloch equations, we handle quantum and thermal noise by introducing random currents whose correlations are given by the fluctuation--dissipation theorem. We derive coupled-mode equations for the lasing-mode amplitudes and obtain a formula for the linewidths in terms of simple integrals over the steady-state lasing modes.

  1. How the diffusivity profile reduces the arbitrariness of protein folding free energies

    E-Print Network [OSTI]

    Hinczewski, Michael; Dzubiella, Joachim; Netz, Roland R

    2010-01-01T23:59:59.000Z

    The concept of a protein diffusing in its free energy folding landscape has been fruitful for both theory and experiment. Yet the choice of the reaction coordinate (RC) introduces an undesirable degree of arbitrariness into the problem. We analyze extensive simulation data of an alpha-helix in explicit water solvent as it stochastically folds and unfolds. The free energy profiles for different RCs exhibit significant variation, some having an activation barrier, others not. We show that this variation has little effect on the predicted folding kinetics if the diffusivity profiles are properly taken into account. This kinetic quasi-universality is rationalized by an RC rescaling, which, due to the reparameterization invariance of the Fokker-Planck equation, allows the combination of free energy and diffusivity effects into a single function, the rescaled free energy profile. This rescaled free energy indeed shows less variation among different RCs than the bare free energy and diffusivity profiles separately d...

  2. A unified physical boundary condition for massless fields of arbitrary spin

    E-Print Network [OSTI]

    Adam Stokes; Robert Bennett

    2014-11-04T23:59:59.000Z

    Boundary conditions for the Maxwell and Dirac fields at material surfaces are widely-used and physically well-motivated, but do not appear to have been generalised to deal with higher spin fields. A consequence of this is that calculations of, for example, Casimir forces associated with higher spin fields always select some arbitrary mathematical boundary conditions, rather than those which are physically motivated. Here, we use the two-spinor calculus formalism to present a unified treatment of the boundary conditions routinely employed in the treatment of spin-1/2 and spin-1 fields. We then use this unification to obtain a completely new boundary condition that can be applied to massless fields of any spin, including the spin-2 graviton, and its supersymmetric partner the spin-3/2 gravitino. We demonstrate one important consequence of our generalisation, which is that periodic boundary conditions cannot be applied to any physically-confined fermionic field.

  3. Two-particle multichannel systems in a finite volume with arbitrary spin

    SciTech Connect (OSTI)

    Briceno, Raul A. [JLAB

    2014-04-01T23:59:59.000Z

    The quantization condition for two-particle systems with arbitrary number of two-body open coupled channels, spin and masses in a finite cubic volume with either periodic or twisted boundary conditions is presented. The condition presented is in agreement with all previous studies of two-body systems in a finite volume. The result is relativistic, holds for all momenta below the three- and four-particle thresholds, and is exact up to exponential volume corrections that are governed by L/r, where L is the spatial extent of the volume and r is the range of the interactions between the particles. For hadronic systems the range of the interaction is set by the inverse of the pion mass, m?, and as a result the formalism presented is suitable for m?L>>1. Implications of the formalism for the studies of multichannel baryon-baryon systems are discussed.

  4. Two-particle multichannel systems in a finite volume with arbitrary spin

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

    Briceno, Raul A. [JLAB

    2014-04-01T23:59:59.000Z

    The quantization condition for two-particle systems with arbitrary number of two-body open coupled channels, spin and masses in a finite cubic volume with either periodic or twisted boundary conditions is presented. The condition presented is in agreement with all previous studies of two-body systems in a finite volume. The result is relativistic, holds for all momenta below the three- and four-particle thresholds, and is exact up to exponential volume corrections that are governed by L/r, where L is the spatial extent of the volume and r is the range of the interactions between the particles. For hadronic systems the range of the interaction is set by the inverse of the pion mass, m?, and as a result the formalism presented is suitable for m?L>>1. Implications of the formalism for the studies of multichannel baryon-baryon systems are discussed.

  5. Device For Determining Therophysical Properties Of A Multi-Component Gas At Arbitrary Temperature And Pressure

    DOE Patents [OSTI]

    Morrow, Thomas B. (San Antonio, TX); Behring, II, Kendricks A. (Gilbert, AZ)

    2005-02-01T23:59:59.000Z

    A computer product for determining thermodynamic properties of a natural gas hydrocarbon, when the speed of sound in the gas is known at an arbitrary temperature and pressure. Thus, the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for mass flow calculations, to determine the speed of sound at standard pressure and temperature, and to determine various thermophysical characteristics of the gas.

  6. On the potential energy in a gravitationally bound two-body system with arbitrary mass distribution

    E-Print Network [OSTI]

    Wilhelm, K

    2015-01-01T23:59:59.000Z

    The potential energy problem in a gravitationally bound two-body system has recently been studied in the framework of a proposed impact model of gravitation (Wilhelm and Dwivedi 2015). The result was applied to the free fall of the so-called Mintrop--Ball in G\\"ottingen with the implicit assumption that the mass distribution of the system is extremely unbalanced. An attempt to generalize the study to arbitrary mass distributions indicated a conflict with the energy conservation law in a closed system. This necessitated us to reconsider an earlier assumption made in selecting a specific process out of two options (Wilhelm et al. 2013). With the result obtained here we can now make an educated selection and reverse our choice. The consequences are presented and discussed in detail for several processes. Energy and momentum conservation could now be demonstrated in all cases.

  7. High expression Zymomonas promoters

    DOE Patents [OSTI]

    Viitanen, Paul V. (West Chester, PA); Tao, Luan (Havertown, PA); Zhang, Yuying (New Hope, PA); Caimi, Perry G. (Kennett Square, PA); McCole, Laura (East Fallowfield, PA): Zhang, Min (Lakewood, CO); Chou, Yat-Chen (Lakewood, CO); McCutchen, Carol M. (Wilmington, DE); Franden, Mary Ann (Centennial, CO)

    2011-08-02T23:59:59.000Z

    Identified are mutants of the promoter of the Z. mobilis glyceraldehyde-3-phosphate dehydrogenase gene, which direct improved expression levels of operably linked heterologous nucleic acids. These are high expression promoters useful for expression of chimeric genes in Zymomonas, Zymobacter, and other related bacteria.

  8. An Arbitrary Lagrangian-Eulerian Discretization of MHD on 3D Unstructured Grids

    SciTech Connect (OSTI)

    Rieben, R N; White, D A; Wallin, B K; Solberg, J M

    2006-06-12T23:59:59.000Z

    We present an arbitrary Lagrangian-Eulerian (ALE) discretization of the equations of resistive magnetohydrodynamics (MHD) on unstructured hexahedral grids. The method is formulated using an operator-split approach with three distinct phases: electromagnetic diffusion, Lagrangian motion, and Eulerian advection. The resistive magnetic dynamo equation is discretized using a compatible mixed finite element method with a 2nd order accurate implicit time differencing scheme which preserves the divergence-free nature of the magnetic field. At each discrete time step, electromagnetic force and heat terms are calculated and coupled to the hydrodynamic equations to compute the Lagrangian motion of the conducting materials. By virtue of the compatible discretization method used, the invariants of Lagrangian MHD motion are preserved in a discrete sense. When the Lagrangian motion of the mesh causes significant distortion, that distortion is corrected with a relaxation of the mesh, followed by a 2nd order monotonic remap of the electromagnetic state variables. The remap is equivalent to Eulerian advection of the magnetic flux density with a fictitious mesh relaxation velocity. The magnetic advection is performed using a novel variant of constrained transport (CT) that is valid for unstructured hexahedral grids with arbitrary mesh velocities. The advection method maintains the divergence free nature of the magnetic field and is second order accurate in regions where the solution is sufficiently smooth. For regions in which the magnetic field is discontinuous (e.g. MHD shocks) the method is limited using a novel variant of algebraic flux correction (AFC) which is local extremum diminishing (LED) and divergence preserving. Finally, we verify each stage of the discretization via a set of numerical experiments.

  9. Polarization of Astronomical Maser Radiation. III. Arbitrary Zeeman Splitting and Anisotropic Pumping

    E-Print Network [OSTI]

    Moshe Elitzur

    1995-08-01T23:59:59.000Z

    General solutions of the maser polarization problem are presented for arbitrary absorption coefficients. The results are used to calculate polarization for masers permeated by magnetic fields with arbitrary values of \\xB, the ratio of Zeeman splitting to Doppler linewidth, and for anisotropic pumping. The $\\xb \\to 0$ limit of the magnetic solution reproduces the linear polarization derived in previous studies, which were always conducted at this unphysical limit. While terms of higher order in \\xb\\ have a negligible effect on the magnitude of $q$, they produce some major new results. In particular, the linear polarization is accompanied by circular polarization, proportional to \\xb. Because \\xb\\ is proportional to the transition wavelength, the circular polarization of SiO masers should decrease with rotation quantum number, as observed. In the absence of theory for $\\xb < 1$, previous estimates of magnetic fields from detected maser circular polarization had to rely on conjectures in this case and generally need to be revised downward. The fields in SiO masers are \\about\\ 2--10 G and were overestimated by a factor of 8. The OH maser regions around supergiants have fields of \\about\\ 0.1--0.5 mG, which were overestimated by factors of 10--100. The fields were properly estimated for OH/IR masers ($\\la$ 0.1 mG) and \\H2O masers in star-forming regions (\\about\\ 15--50 mG). Spurious solutions that required stability analysis for their removal in all previous studies are never reproduced here; in particular, there are no stationary physical solutions for propagation at $\\sin^2\\theta < \\third$, where $\\theta$ is the angle from the direction of the magnetic field, so such radiation is unpolarized. These spurious solutions can be identified as the \\xb\\ = 0 limits of non-physical solutions and they never arise at finite

  10. Schwinger Mechanism for Quark-Antiquark Production in the Presence of Arbitrary Time Dependent Chromo-Electric Field

    E-Print Network [OSTI]

    Gouranga C. Nayak

    2011-05-23T23:59:59.000Z

    We study the Schwinger mechanism in QCD in the presence of an arbitrary time-dependent chromo-electric background field $E^a(t)$ with arbitrary color index $a$=1,2,...8 in SU(3). We obtain an exact result for the non-perturbative quark (antiquark) production from an arbitrary $E^a(t)$ by directly evaluating the path integral. We find that the exact result is independent of all the time derivatives $\\frac{d^nE^a(t)}{dt^n}$ where $n=1,2,...\\infty$. This result has the same functional dependence on two Casimir invariants $[E^a(t)E^a(t)]$ and $[d_{abc}E^a(t)E^b(t)E^c(t)]^2$ as the constant chromo-electric field $E^a$ result with the replacement: $E^a \\rightarrow E^a(t)$. This result relies crucially on the validity of the shift conjecture, which has not yet been established.

  11. Non-Perturbative Gluon pair production from a Constant Chromo-Electric Field via the Schwinger Mechanism in Arbitrary Gauge

    E-Print Network [OSTI]

    Fred Cooper; Gouranga C. Nayak

    2006-02-21T23:59:59.000Z

    We study the non-perturbative production of gluon pairs from a constant SU(3) chromo-electric background field via the Schwinger mechanism. We fix the covariant background gauge with an arbitrary gauge parameter \\alpha. We determine the transverse momentum distribution of the gluons, as well as the total probability of creating pairs per unit space time volume. We find that the result is independent of the covariant gauge parameter \\alpha used to define arbitrary covariant background gauges. We find that our non-perturbative result is both gauge invariant and gauge parameter \\alpha independent.

  12. V-012: Mozilla Firefox 'window.location' Bugs Permit Cross-Site Scripting Attacks and May Let Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    PROBLEM: Mozilla Firefox 'window.location' Bugs Permit Cross-Site Scripting Attacks and May Let Remote Users Execute Arbitrary Code

  13. Analytical theory for the dark-soliton interaction in nonlocal nonlinear materials with an arbitrary degree of nonlocality

    SciTech Connect (OSTI)

    Kong Qian [Laser Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia); Department of Physics, Shanghai University, Shanghai 200444 (China); Wang, Q. [Department of Physics, Shanghai University, Shanghai 200444 (China); Bang, O. [DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby (Denmark); Krolikowski, W. [Laser Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia)

    2010-07-15T23:59:59.000Z

    We investigate theoretically the interaction of dark solitons in materials with a spatially nonlocal nonlinearity. In particular we do this analytically and for arbitrary degree of nonlocality. We employ the variational technique to show that nonlocality induces an attractive force in the otherwise repulsive soliton interaction.

  14. Matrix elements of one-body and two-body operators between arbitrary HFB multi-quasiparticle states

    E-Print Network [OSTI]

    Qing-Li Hu; Zao-Chun Gao; Y. S. Chen

    2014-08-14T23:59:59.000Z

    We present new formulae for the matrix elements of one-body and two-body physical operators in compact forms, which are applicable to arbitrary Hartree-Fock-Bogoliubov wave functions, including those for multi-quasiparticle excitations. The test calculations show that our formulae may substantially accelerate the process of symmetry restoration when applied to the heavy nuclear system.

  15. Energy Spectrum of a Relativistic Two-dimensional Hydrogen-like Atom in a Constant Magnetic Field of arbitrary strength

    E-Print Network [OSTI]

    V. M. Villalba; R. Pino

    2001-01-23T23:59:59.000Z

    We compute, via a variational mixed-base method, the energy spectrum of a two dimensional relativistic atom in the presence of a constant magnetic field of arbitrary strength. The results are compared to those obtained in the non-relativistic and spinless case. We find that the relativistic spectrum does not present $s$ states.

  16. T-609: Adobe Acrobat/Reader Memory Corruption Error in CoolType Library Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A remote user can create a specially crafted PDF file that, when loaded by the target user, will trigger a memory corruption error in the CoolType library and execute arbitrary code on the target system. The code will run with the privileges of the target user.

  17. Thermal noise in advanced gravitational wave interferometric antennas: A comparison between arbitrary order Hermite and Laguerre Gaussian modes

    SciTech Connect (OSTI)

    Vinet, Jean-Yves [Dpt. ARTEMIS, Universite de Nice-Sophia Antipolis, C.N.R.S. and Observatoire de la Cote d'Azur, 06304 Nice (France)

    2010-08-15T23:59:59.000Z

    We study the thermal noise caused by mechanical or thermomechanical dissipation in mirrors of interferometric gravitational wave antennas. We give relative figures of merit for arbitrary Hermite-Gauss or Laguerre-Gauss optical beams regarding the Brownian and thermoelastic noises (substrate and coating) in the infinite mirror approximation.

  18. Thomas Meyer Basic Infobase Change Abstract. Generalisations of theory change involving arbitrary sets of w s instead of

    E-Print Network [OSTI]

    Meyer, Tommie

    Thomas Meyer Basic Infobase Change Abstract. Generalisations of theory change involving arbitrary these lines by Meyer et al. 15]. We take an infobase as a nite sequence of w s, with each element Kluwer Academic Publishers. Printed in the Netherlands. #12;216 T. Meyer In this paper we propose a form

  19. Flexible-Bandwidth and Format-Agile Networking Based on Optical Arbitrary Waveform Generation and Wavelength Selective Switches

    E-Print Network [OSTI]

    Kolner, Brian H.

    Flexible-Bandwidth and Format-Agile Networking Based on Optical Arbitrary Waveform Generation-based transmitter and its application in flexible spectrum networks. (b) Experimental arrangement for the generation processing. Fig. 1(a) illustrates the concept of flexible spectrum generation of an OAWG-based terahertz

  20. An Arbitrary Curvilinear Coordinate Method for Particle-In-Cell Modeling

    E-Print Network [OSTI]

    Fichtl, C A; Cartwright, K L

    2012-01-01T23:59:59.000Z

    A new approach to the kinetic simulation of plasmas in complex geometries, based on the Particle-in- Cell (PIC) simulation method, is explored. In the two dimensional (2d) electrostatic version of our method, called the Arbitrary Curvilinear Coordinate PIC (ACC-PIC) method, all essential PIC operations are carried out in 2d on a uniform grid on the unit square logical domain, and mapped to a nonuniform boundary-fitted grid on the physical domain. As the resulting logical grid equations of motion are not separable, we have developed an extension of the semi-implicit Modified Leapfrog (ML) integration technique to preserve the symplectic nature of the logical grid particle mover. A generalized, curvilinear coordinate formulation of Poisson's equations to solve for the electrostatic fields on the uniform logical grid is also developed. By our formulation, we compute the plasma charge density on the logical grid based on the particles' positions on the logical domain. That is, the plasma particles are weighted to...

  1. A 6 kV arbitrary waveform generator for the Tevatron Electron Lens

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

    Pfeffer, H.; Saewert, G.

    2011-11-01T23:59:59.000Z

    This paper reports on a 6 kV modulator built and installed at Fermilab to drive the electron gun anode for the Tevatron Electron Lens (TEL). The TEL was built with the intention of shifting the individual (anti)proton bunch tunes to even out the tune spread among all 36 bunches with the desire of improving Tevatron integrated luminosity. This modulator is essentially a 6 kV arbitrary waveform generator that enables the TEL to define the electron beam intensity on a bunch-by-bunch basis. A voltage waveform is constructed having a 7 {micro}s duration that corresponds to the tune shift requirements of amore »12-bunch (anti)proton beam pulse train. This waveform is played out for any one or all three bunch trains in the Tevatron. The programmed waveform voltages transition to different levels at time intervals corresponding to the 395 ns bunch spacing. Thus, complex voltage waveforms can be played out at a sustained rate of 143 kHz over the full 6 kV output range. This paper describes the novel design of the inductive adder topology employing five transformers. It describes the design aspects that minimize switching losses for this multi-kilovolt, high repetition rate and high duty factor application.« less

  2. New Sum Rules from Low Energy Compton Scattering on Arbitrary Spin Target

    E-Print Network [OSTI]

    Hovhannes R. Grigoryan; Massimo Porrati

    2012-06-14T23:59:59.000Z

    We derive two sum rules by studying the low energy Compton scattering on a target of arbitrary (nonzero) spin j. In the first sum rule, we consider the possibility that the intermediate state in the scattering can have spin |j \\pm 1| and the same mass as the target. The second sum rule applies if the theory at hand possesses intermediate narrow resonances with masses different from the mass of the scatterer. These sum rules are generalizations of the Gerasimov-Drell-Hearn-Weinberg sum rule. Along with the requirement of tree level unitarity, they relate different low energy couplings in the theory. Using these sum rules, we show that in certain cases the gyromagnetic ratio can differ from the "natural" value g=2, even at tree level, without spoiling perturbative unitarity. These sum rules can be used as constraints applicable to all supergravity and higher-spin theories that contain particles charged under some U(1) gauge field. In particular, applied to four dimensional N=8 supergravity in a spontaneously broken phase, these sum rules suggest that for the theory to have a good ultraviolet behavior, additional massive states need to be present, such as those coming from the embedding of the N=8 supergravity in type II superstring theory. We also discuss the possible implications of the sum rules for QCD in the large-N_c limit.

  3. Dirac-Weyl fermions with arbitrary spin in two-dimensional optical superlattices

    E-Print Network [OSTI]

    Z. Lan; N. Goldman; A. Bermudez; W. Lu; P. Ohberg

    2011-12-31T23:59:59.000Z

    Dirac-Weyl fermions are massless relativistic particles with a well-defined helicity which arise in the context of high-energy physics. Here we propose a quantum simulation of these paradigmatic fermions using multicomponent ultracold atoms in a two-dimensional square optical lattice. We find that laser-assisted spin-dependent hopping, specifically tuned to the $(2s+1)$-dimensional representations of the $\\mathfrak{su}$(2) Lie algebra, directly leads to a regime where the emerging massless excitations correspond to Dirac-Weyl fermions with arbitrary pseudospin $s$. We show that this platform hosts two different phases: a semimetallic phase that occurs for half-integer $s$, and a metallic phase that contains a flat zero-energy band at integer $s$. These phases host a variety of interesting effects, such as a very rich anomalous quantum Hall effect and a remarkable multirefringent Klein tunneling. In addition we show that these effects are directly related to the number of underlying Dirac-Weyl species and zero modes.

  4. A 6 kV arbitrary waveform generator for the Tevatron Electron Lens

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

    Pfeffer, H.; Saewert, G.

    2011-11-01T23:59:59.000Z

    This paper reports on a 6 kV modulator built and installed at Fermilab to drive the electron gun anode for the Tevatron Electron Lens (TEL). The TEL was built with the intention of shifting the individual (anti)proton bunch tunes to even out the tune spread among all 36 bunches with the desire of improving Tevatron integrated luminosity. This modulator is essentially a 6 kV arbitrary waveform generator that enables the TEL to define the electron beam intensity on a bunch-by-bunch basis. A voltage waveform is constructed having a 7 {micro}s duration that corresponds to the tune shift requirements of a 12-bunch (anti)proton beam pulse train. This waveform is played out for any one or all three bunch trains in the Tevatron. The programmed waveform voltages transition to different levels at time intervals corresponding to the 395 ns bunch spacing. Thus, complex voltage waveforms can be played out at a sustained rate of 143 kHz over the full 6 kV output range. This paper describes the novel design of the inductive adder topology employing five transformers. It describes the design aspects that minimize switching losses for this multi-kilovolt, high repetition rate and high duty factor application.

  5. From the Micro-scale to Collective Crowd Dynamics

    E-Print Network [OSTI]

    Nicola Bellomo; Abdelghani Bellouquid; Damian Knopoff

    2013-01-23T23:59:59.000Z

    This paper deals with the kinetic theory modeling of crowd dynamics with the aim of showing how the dynamics at the micro-scale is transferred to the dynamics of collective behaviors. The derivation of a new model is followed by a qualitative analysis of the initial value problem. Existence of solutions is proved for arbitrary large times, while simulations are developed by computational schemes based on splitting methods, where the transport equations treated by finite difference methods for hyperbolic equations. Some preliminary reasonings toward the modeling of panic conditions are proposed.

  6. Scaling the Web Scaling Web Sites

    E-Print Network [OSTI]

    Menascé, Daniel A.

    Scaling the Web Scaling Web Sites Through Caching A large jump in a Web site's traffic may indi, pushing the site's through- put to its maximum point. When a Web site becomes overloaded, cus- tomers grow-generated revenue and may even tarnish the reputation of organizations relying on Web sites to support mission

  7. Inhomogeneous T-Q equation for the open XXX chain with general boundary terms: completeness and arbitrary spin

    E-Print Network [OSTI]

    Rafael I. Nepomechie

    2013-07-28T23:59:59.000Z

    An inhomogeneous T-Q equation has recently been proposed by Cao, Yang, Shi and Wang for the open spin-1/2 XXX chain with general (nondiagonal) boundary terms. We argue that a simplified version of this equation describes all the eigenvalues of the transfer matrix of this model. We also propose a generating function for the inhomogeneous T-Q equations of arbitrary spin.

  8. Inhomogeneous T-Q equation for the open XXX chain with general boundary terms: completeness and arbitrary spin

    E-Print Network [OSTI]

    Nepomechie, Rafael I

    2013-01-01T23:59:59.000Z

    An inhomogeneous T-Q equation has recently been proposed by Cao, Yang, Shi and Wang for the open spin-1/2 XXX chain with general (nondiagonal) boundary terms. We argue that a simplified version of this equation describes all the eigenvalues of the transfer matrix of this model. We also propose a generating function for the inhomogeneous T-Q equations of arbitrary spin.

  9. Robot calibration without scaling

    E-Print Network [OSTI]

    Ives, Thomas W.

    1995-01-01T23:59:59.000Z

    methods. Scaling is a common way of improving the condition number for a matrix. Researchers in other fields have developed specific methods of scaling matrices to improve the condition number. However, robotics researchers have not specifically addressed...

  10. T-570: HP Security Bulletin- HP-UX Running OpenSSL, Remote Execution of Arbitrary Code, Denial of Service (DoS), Authentication Bypass

    Broader source: Energy.gov [DOE]

    A potential security vulnerability has been identified with HP-UX OpenSSL. This vulnerability could be exploited remotely to execute arbitrary code or create a Denial of Service (DoS) or an authentication bypass.

  11. WKB-expansion of the HarishChandra-Itzykson-Zuber integral for arbitrary beta

    E-Print Network [OSTI]

    S. Hikami; E. Brezin

    2006-04-18T23:59:59.000Z

    This article is devoted to the asymptotic expansion of the generalized Harish Chandra-Itzykson-Zuber matrix integral for non-unitary symmetries characterized by a parameter beta(as usual beta =1,2 and 4 correspond to the orthogonal, unitary and symplectic group integrals). A WKB-expansion for f is derived from the heat kernel differential equation, for general values of k and beta. From an expansion in terms of zonal polynomials, one obtain an expansion in powers of the tau's for beta=1, and generalizations are considered for general beta. A duality relation, and a transformation of products of pairs of symmetric functions into tau polynomials, is used to obtain the expression for f(tau ij) for general beta.

  12. Lower Bounds on Q for Finite Size Antennas of Arbitrary Shape

    E-Print Network [OSTI]

    Kim, Oleksiy S

    2015-01-01T23:59:59.000Z

    The problem of the lower bound on the radiation Q for an arbitrarily shaped finite size antenna of non-zero volume is formulated in terms of equivalent electric and magnetic currents densities distributed on a closed surface coinciding with antenna exterior surface. When these equivalent currents radiate in free space, the magnetic current augments the electric current, so that the fields interior to the surface vanish. In contrast to approaches based solely on electric currents, the proposed technique ensures no stored energy interior to the antenna exterior surface, and thus, allows the fundamental lower bound on Q to be determined. To facilitate the computation of the bound, new expressions for the stored energy, radiated power, and Q of coupled electric and magnetic source currents in free space are derived.

  13. TOPAZ: a computer code for modeling heat transfer and fluid flow in arbitrary networks of pipes, flow branches, and vessels

    SciTech Connect (OSTI)

    Winters, W.S.

    1984-01-01T23:59:59.000Z

    An overview of the computer code TOPAZ (Transient-One-Dimensional Pipe Flow Analyzer) is presented. TOPAZ models the flow of compressible and incompressible fluids through complex and arbitrary arrangements of pipes, valves, flow branches and vessels. Heat transfer to and from the fluid containment structures (i.e. vessel and pipe walls) can also be modeled. This document includes discussions of the fluid flow equations and containment heat conduction equations. The modeling philosophy, numerical integration technique, code architecture, and methods for generating the computational mesh are also discussed.

  14. Quantization rule solution to the Hulthén potential in arbitrary dimension by a new approximate scheme for the centrifugal term

    E-Print Network [OSTI]

    Sameer M. Ikhdair

    2012-03-13T23:59:59.000Z

    The bound state energies and wave functions for a particle exposed to the Hulth\\'en potential field in the D-dimensional space are obtained within the improved quantization rule for any arbitrary l state. The present approximation scheme used to deal with the centrifugal term in the effective Hulth\\'en potential is systematic and accurate. The solutions for the three-dimensional (D=3) case and the s-wave (l=0) case are briefly discussed. Keywords: Hulth\\'en potential, improved quantization rule, approximation schemes. 03.65.Ge, 12.39.Jh

  15. Silica Scaling Removal Process

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

    sidestreams of cooling tower water by providing a substrate for the deposition and adsorption of silica. The removal of the silica prevents scaling deposition on heat transfer...

  16. Pore Scale Micromodels | EMSL

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

    of EMSL's Subsurface Flow and Transport Laboratory (SFTL) with a focus on coupled (multiphase) flow, diffusion, and reactions processes at the microscopic scale (m to cm) that...

  17. Thermodynamics and scale relativity

    E-Print Network [OSTI]

    Robert Carroll

    2011-10-13T23:59:59.000Z

    It is shown how the fractal paths of scale relativity (following Nottale) can be introduced into a thermodynamical context (following Asadov-Kechkin).

  18. Continuous-scanning laser Doppler vibrometry: Extensions to arbitrary areas, multi-frequency and 3D capture

    SciTech Connect (OSTI)

    Weekes, B.; Ewins, D. [University of Bristol, Queen's Building, University Walk, Bristol, BS8 1TR (United Kingdom); Acciavatti, F. [Universita' Politecnica Delle Marche, Via Brecce Bianche 12, 60131 Ancona (Italy)

    2014-05-27T23:59:59.000Z

    To date, differing implementations of continuous scan laser Doppler vibrometry have been demonstrated by various academic institutions, but since the scan paths were defined using step or sine functions from function generators, the paths were typically limited to 1D line scans or 2D areas such as raster paths or Lissajous trajectories. The excitation was previously often limited to a single frequency due to the specific signal processing performed to convert the scan data into an ODS. In this paper, a configuration of continuous-scan laser Doppler vibrometry is demonstrated which permits scanning of arbitrary areas, with the benefit of allowing multi-frequency/broadband excitation. Various means of generating scan paths to inspect arbitrary areas are discussed and demonstrated. Further, full 3D vibration capture is demonstrated by the addition of a range-finding facility to the described configuration, and iteratively relocating a single scanning laser head. Here, the range-finding facility was provided by a Microsoft Kinect, an inexpensive piece of consumer electronics.

  19. Scaling of the magnetic reconnection rate with symmetric shear flow

    SciTech Connect (OSTI)

    Cassak, P. A. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Otto, A. [Geophysical Institute, University of Alaska-Fairbanks, Fairbanks, Alaska 99775 (United States)

    2011-07-15T23:59:59.000Z

    The scaling of the reconnection rate during (fast) Hall magnetic reconnection in the presence of an oppositely directed bulk shear flow parallel to the reconnecting magnetic field is studied using two-dimensional numerical simulations of Hall reconnection with two different codes. Previous studies noted that the reconnection rate falls with increasing flow speed and shuts off entirely for super-Alfvenic flow, but no quantitative expression for the reconnection rate in sub-Alfvenic shear flows is known. An expression for the scaling of the reconnection rate is presented.

  20. Kinetic description of quasi-stationary axisymmetric collisionless accretion disk plasmas with arbitrary magnetic field configurations

    SciTech Connect (OSTI)

    Cremaschini, Claudio [International School for Advanced Studies (SISSA), Trieste 34136 (Italy); Miller, John C. [International School for Advanced Studies (SISSA) and INFN, Trieste 34136, Italy and Department of Physics (Astrophysics), University of Oxford, Oxford OX1 3RH (United Kingdom); Tessarotto, Massimo [Department of Mathematics and Informatics, University of Trieste, Trieste 34127 (Italy)

    2011-06-15T23:59:59.000Z

    A kinetic treatment is developed for collisionless magnetized plasmas occurring in high-temperature, low-density astrophysical accretion disks, such as are thought to be present in some radiatively inefficient accretion flows onto black holes. Quasi-stationary configurations are investigated, within the framework of a Vlasov-Maxwell description. The plasma is taken to be axisymmetric and subject to the action of slowly time-varying gravitational and electromagnetic fields. The magnetic field is assumed to be characterized by a family of locally nested but open magnetic surfaces. The slow collisionless dynamics of these plasmas is investigated, yielding a reduced gyrokinetic Vlasov equation for the kinetic distribution function. For doing this, an asymptotic quasi-stationary solution is first determined, represented by a generalized bi-Maxwellian distribution expressed in terms of the relevant adiabatic invariants. The existence of the solution is shown to depend on having suitable kinetic constraints and conditions leading to particle trapping phenomena. With this solution, one can treat temperature anisotropy, toroidal and poloidal flow velocities, and finite Larmor-radius effects. An asymptotic expansion for the distribution function permits analytic evaluation of all the relevant fluid fields. Basic theoretical features of the solution and their astrophysical implications are discussed. As an application, the possibility of describing the dynamics of slowly time-varying accretion flows and the self-generation of magnetic field by means of a ''kinetic dynamo effect'' are discussed. Both effects are shown to be related to intrinsically kinetic physical mechanisms.

  1. ENTROPY PRODUCTION IN COLLISIONLESS SYSTEMS. II. ARBITRARY PHASE-SPACE OCCUPATION NUMBERS

    SciTech Connect (OSTI)

    Barnes, Eric I. [Department of Physics, University of Wisconsin-La Crosse, La Crosse, WI 54601 (United States); Williams, Liliya L. R., E-mail: barnes.eric@uwlax.edu, E-mail: llrw@astro.umn.edu [Minnesota Institue for Astrophysics, University of Minnesota, Minneapolis, MN 55455 (United States)

    2012-04-01T23:59:59.000Z

    We present an analysis of two thermodynamic techniques for determining equilibria of self-gravitating systems. One is the Lynden-Bell (LB) entropy maximization analysis that introduced violent relaxation. Since we do not use the Stirling approximation, which is invalid at small occupation numbers, our systems have finite mass, unlike LB's isothermal spheres. (Instead of Stirling, we utilize a very accurate smooth approximation for ln x{exclamation_point}.) The second analysis extends entropy production extremization to self-gravitating systems, also without the use of the Stirling approximation. In addition to the LB statistical family characterized by the exclusion principle in phase space, and designed to treat collisionless systems, we also apply the two approaches to the Maxwell-Boltzmann (MB) families, which have no exclusion principle and hence represent collisional systems. We implicitly assume that all of the phase space is equally accessible. We derive entropy production expressions for both families and give the extremum conditions for entropy production. Surprisingly, our analysis indicates that extremizing entropy production rate results in systems that have maximum entropy, in both LB and MB statistics. In other words, both thermodynamic approaches lead to the same equilibrium structures.

  2. Synthesis and Recognition of Facial Expressions in Virtual 3D Views Lukasz Zalewski and Shaogang Gong

    E-Print Network [OSTI]

    Gong, Shaogang

    Gong Department of Computer Science, Queen Mary, University of London, E1 4NS, UK [lukas to synthesise existing sequences with different expressions during the speaking process. Gong et al.[8] used to incorporate expression changes under large pose and scale variations. As Gong et al.[8] point out, la

  3. A quantum Otto engine with a spin-$1/2$ and an arbitrary spin coupled by Heisenberg exchange

    E-Print Network [OSTI]

    Ferdi Altintas; Özgür E. Müstecapl?o?lu

    2015-02-26T23:59:59.000Z

    We investigate a quantum heat engine with a working substance of two particles, one with a spin-$1/2$ and the other with an arbitrary spin (spin-$s$), coupled by Heisenberg exchange interaction, and subject to an external magnetic field. The engine operates in a quantum Otto cycle. Work harvested in the cycle and its efficiency are calculated using quantum thermodynamical definitions. It is found that the engine has higher efficiencies at higher spin values and can harvest work at higher exchange interaction strengths.The role of exchange coupling and spin-$s$ on the work output and the thermal efficiency is studied in detail. In addition, the engine operation is analyzed from the perspective of local work and efficiency. The local work definition is generalized for the global changes and the conditions when the global work can be equal or more than the sum of the local works are determined.

  4. Revisiting the Rigidly Rotating Magnetosphere model for $\\sigma$ Ori E - II. Magnetic Doppler imaging, arbitrary field RRM, and light variability

    E-Print Network [OSTI]

    Oksala, M E; Krticka, J; Townsend, R H D; Wade, G A; Prvak, M; Mikulasek, Z; Silvester, J; Owocki, S P

    2015-01-01T23:59:59.000Z

    The initial success of the Rigidly Rotating Magnetosphere (RRM) model application to the B2Vp star sigma OriE by Townsend, Owocki & Groote (2005) triggered a renewed era of observational monitoring of this archetypal object. We utilize high-resolution spectropolarimetry and the magnetic Doppler imaging (MDI) technique to simultaneously determine the magnetic configuration, which is predominately dipolar, with a polar strength Bd = 7.3-7.8 kG and a smaller non-axisymmetric quadrupolar contribution, as well as the surface distribution of abundance of He, Fe, C, and Si. We describe a revised RRM model that now accepts an arbitrary surface magnetic field configuration, with the field topology from the MDI models used as input. The resulting synthetic Ha emission and broadband photometric observations generally agree with observations, however, several features are poorly fit. To explore the possibility of a photospheric contribution to the observed photometric variability, the MDI abundance maps were used to ...

  5. Beyond the Goldenberg-Vaidman protocol: Secure and efficient quantum communication using arbitrary, orthogonal, multi-particle quantum states

    E-Print Network [OSTI]

    Chitra Shukla; Anirban Pathak; R. Srikanth

    2012-10-09T23:59:59.000Z

    It is shown that maximally efficient protocols for secure direct quantum communications can be constructed using any arbitrary orthogonal basis. This establishes that no set of quantum states (e.g. GHZ states, W states, Brown states or Cluster states) has an advantage over the others, barring the relative difficulty in physical implementation. The work provides a wide choice of states for experimental realization of direct secure quantum communication protocols. We have also shown that this protocol can be generalized to a completely orthogonal state based protocol of Goldenberg-Vaidman (GV) type. The security of these protocols essentially arises from duality and monogamy of entanglement. This stands in contrast to protocols that employ non-orthogonal states, like Bennett-Brassard 1984 (BB84), where the security essentially comes from non-commutativity in the observable algebra.

  6. A System And Method To Determine Thermophysical Properties Of A Multi-Component Gas At Arbitrary Temperature And Pressure

    DOE Patents [OSTI]

    Morrow, Thomas E. (San Antonio, TX); Behring, II, Kendricks A. (Gilbert, AZ)

    2004-03-09T23:59:59.000Z

    A method to determine thermodynamic properties of a natural gas hydrocarbon, when the speed of sound in the gas is known at an arbitrary temperature and pressure. Thus, the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for mass flow calculations, to determine the speed of sound at standard pressure and temperature, and to determine various thermophysical characteristics of the gas.

  7. Large scale disease prediction

    E-Print Network [OSTI]

    Schmid, Patrick R. (Patrick Raphael)

    2008-01-01T23:59:59.000Z

    The objective of this thesis is to present the foundation of an automated large-scale disease prediction system. Unlike previous work that has typically focused on a small self-contained dataset, we explore the possibility ...

  8. The Improbability scale

    SciTech Connect (OSTI)

    Ritchie, David J.; /Fermilab

    2005-03-01T23:59:59.000Z

    The Improbability Scale (IS) is proposed as a way of communicating to the general public the improbability (and by implication, the probability) of events predicted as the result of scientific research. Through the use of the Improbability Scale, the public will be able to evaluate more easily the relative risks of predicted events and draw proper conclusions when asked to support governmental and public policy decisions arising from that research.

  9. Dynamic Hyperparameter Scaling Method for LVQ Algorithms Sambu Seo and Klaus Obermayer

    E-Print Network [OSTI]

    Wichmann, Felix

    Dynamic Hyperparameter Scaling Method for LVQ Algorithms Sambu Seo and Klaus Obermayer Abstract gene expression profiling [7]. Sambu Seo and Klaus Obermayer are with the Department of Electri- cal

  10. Thermodynamics and Finite size scaling in Scalar Field Theory

    E-Print Network [OSTI]

    Thermodynamics and Finite size scaling in Scalar Field Theory A thesis submitted to the Tata Research, Mumbai December 2008 #12;ii #12;Synopsis In this work we study the thermodynamics of an interacting 4 theory in 4 space- time dimensions. The expressions for the thermodynamic quantities are worked

  11. Physical meaning of one-machine and multimachine tokamak scalings

    SciTech Connect (OSTI)

    Dnestrovskij, Yu. N., E-mail: dnyn@nfi.kiae.ru; Danilov, A. V.; Dnestrovskij, A. Yu.; Lysenko, S. E. [National Research Centre Kurchatov Institute, Institute of Tokamak Physics (Russian Federation)] [National Research Centre Kurchatov Institute, Institute of Tokamak Physics (Russian Federation); Ongena, J. [Euratom-Belgium State Association, Laboratory for Plasma Physics (Belgium)] [Euratom-Belgium State Association, Laboratory for Plasma Physics (Belgium)

    2013-04-15T23:59:59.000Z

    Specific features of energy confinement scalings constructed using different experimental databases for tokamak plasmas are considered. In the multimachine database, some pairs of engineering variables are collinear; e.g., the current I and the input power P both increase with increasing minor radius a. As a result, scalings derived from this database are reliable only for discharges in which such ratios as I/a{sup 2} or P/a{sup 2} are close to their values averaged over the database. The collinearity of variables allows one to exclude the normalized Debye radius d* from the scaling expressed in a nondimensional form. In one-machine databases, the dimensionless variables are functionally dependent, which allow one to cast a scaling without d*. In a database combined from two devices, the collinearity may be absent, so the Debye radius cannot generally be excluded from the scaling. It is shown that the experiments performed in support of the absence of d* in the two-machine scaling are unconvincing. Transformation expressions are given that allow one to compare experiments for the determination of scaling in any set of independent variables.

  12. A localised subgrid scale model for fluid dynamical simulations in astrophysics I: Theory and numerical tests

    E-Print Network [OSTI]

    Schmidt, W; Niemeyer, J C

    2006-01-01T23:59:59.000Z

    We present a one-equation subgrid scale model that evolves the turbulence energy corresponding to unresolved velocity fluctuations in large eddy simulations. The model is derived in the context of the Germano consistent decomposition of the hydrodynamical equations. The eddy-viscosity closure for the rate of energy transfer from resolved toward subgrid scales is localised by means of a dynamical procedure for the computation of the closure parameter. Therefore, the subgrid scale model applies to arbitrary flow geometry and evolution. For the treatment of microscopic viscous dissipation a semi-statistical approach is used, and the gradient-diffusion hypothesis is adopted for turbulent transport. A priori tests of the localised eddy-viscosity closure and the gradient-diffusion closure are made by analysing data from direct numerical simulations. As an a posteriori testing case, the large eddy simulation of thermonuclear combustion in forced isotropic turbulence is discussed. We intend the formulation of the sub...

  13. Angular Scaling In Jets

    SciTech Connect (OSTI)

    Jankowiak, Martin; Larkoski, Andrew J.; /SLAC

    2012-02-17T23:59:59.000Z

    We introduce a jet shape observable defined for an ensemble of jets in terms of two-particle angular correlations and a resolution parameter R. This quantity is infrared and collinear safe and can be interpreted as a scaling exponent for the angular distribution of mass inside the jet. For small R it is close to the value 2 as a consequence of the approximately scale invariant QCD dynamics. For large R it is sensitive to non-perturbative effects. We describe the use of this correlation function for tests of QCD, for studying underlying event and pile-up effects, and for tuning Monte Carlo event generators.

  14. Global Scale Impacts

    E-Print Network [OSTI]

    Asphaug, Erik; Jutzi, Martin

    2015-01-01T23:59:59.000Z

    Global scale impacts modify the physical or thermal state of a substantial fraction of a target asteroid. Specific effects include accretion, family formation, reshaping, mixing and layering, shock and frictional heating, fragmentation, material compaction, dilatation, stripping of mantle and crust, and seismic degradation. Deciphering the complicated record of global scale impacts, in asteroids and meteorites, will lead us to understand the original planet-forming process and its resultant populations, and their evolution in time as collisions became faster and fewer. We provide a brief overview of these ideas, and an introduction to models.

  15. Simple exact solution of the one-dimensional Schroedinger equation with continuous plus delta-function potentials of arbitrary position and strength

    SciTech Connect (OSTI)

    Farias, J.R.

    1980-08-01T23:59:59.000Z

    A simple exact solution of a one-dimensional Schroedinger equation which describes the motion of a particle in a continuous potential V(x) and scattering from a finite set of delta-function potentials of arbitrary positions and strengths is found.

  16. J. Phys. Chem. 1994, 98, 5113-5111 5773 Free Energy of Solvation, Interaction, and Binding of Arbitrary Charge Distributions Imbedded in

    E-Print Network [OSTI]

    Jayaram, Bhyravabotla

    J. Phys. Chem. 1994, 98, 5113-5111 5773 Free Energy of Solvation, Interaction, and Binding in a continuum solvent. Background Attempts seeking analytical solutions to the hydration free energies solvation free energies of arbitrary charge distributions with an overall spherical symmetry. This theory

  17. A Protocol for the Atomic Capture of Multiple Molecules on Large Scale Platforms

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Protocol for the Atomic Capture of Multiple Molecules on Large Scale Platforms Marin Bertier services. Envi- sioned over largely distributed and highly dynamic platforms, expressing this coordination coordination of services. However, the execution of such programs over large scale platforms raises several

  18. PAIN SCALES (ATTACHMENT A)

    E-Print Network [OSTI]

    Oliver, Douglas L.

    TOTAL SCORE: ADD INDIVIDUAL ASSESSMENT SCORES TO DETERMINE THE TOTAL PAIN SCORE. TOTAL THE 5 CATEGORIES FOR TOTAL PAIN SCORE. MAXIMUM SCORE = 10/10. Reference: Merkel SJ, et al. The FLACC: A Behavioral Pain Scale or groan. Low level speech with a negative or disapproving quality. Repeated troubled calling out. Loud

  19. Mathematics Achievement Scale Score

    E-Print Network [OSTI]

    Huang, Jianyu

    Croatia 490 New Zealand 486 Spain 482 Romania 482 Poland 481 Turkey 469 Azerbaijan 463 Chile 462 Thailand Romania 505 Spain 505 Poland 505 TIMSS Scale Centerpoint 500 New Zealand 497 Kazakhstan 495 Norway 494 Kazakhstan 487 Sweden 484 Ukraine 479 Norway 475 Armenia 467 Romania 458 United Arab Emirates 456 Turkey 452

  20. Neutron star deformation due to poloidal-toroidal magnetic fields of arbitrary multipole order: a new analytic approach

    E-Print Network [OSTI]

    Mastrano, Alpha; Melatos, Andrew

    2015-01-01T23:59:59.000Z

    A recipe is presented to construct an analytic, self-consistent model of a non-barotropic neutron star with a poloidal-toroidal field of arbitrary multipole order, whose toroidal component is confined in a torus around the neutral curve inside the star, as in numerical simulations of twisted tori. The recipe takes advantage of magnetic-field-aligned coordinates to ensure continuity of the mass density at the surface of the torus. The density perturbation and ellipticity of such a star are calculated in general and for the special case of a mixed dipole-quadrupole field as a worked example. The calculation generalises previous work restricted to dipolar, poloidal-toroidal and multipolar, poloidal-only configurations. The results are applied, as an example, to magnetars whose observations (e.g., spectral features and pulse modulation) indicate that the internal magnetic fields may be at least one order of magnitude stronger than the external fields, as inferred from their spin downs, and are not purely dipolar.

  1. Reduced quantum dynamics with arbitrary bath spectral densities: Hierarchical equations of motion based on several different bath decomposition schemes

    SciTech Connect (OSTI)

    Liu, Hao; Zhu, Lili; Bai, Shuming; Shi, Qiang, E-mail: qshi@iccas.ac.cn [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190 (China)] [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190 (China)

    2014-04-07T23:59:59.000Z

    We investigated applications of the hierarchical equation of motion (HEOM) method to perform high order perturbation calculations of reduced quantum dynamics for a harmonic bath with arbitrary spectral densities. Three different schemes are used to decompose the bath spectral density into analytical forms that are suitable to the HEOM treatment: (1) The multiple Lorentzian mode model that can be obtained by numerically fitting the model spectral density. (2) The combined Debye and oscillatory Debye modes model that can be constructed by fitting the corresponding classical bath correlation function. (3) A new method that uses undamped harmonic oscillator modes explicitly in the HEOM formalism. Methods to extract system-bath correlations were investigated for the above bath decomposition schemes. We also show that HEOM in the undamped harmonic oscillator modes can give detailed information on the partial Wigner transform of the total density operator. Theoretical analysis and numerical simulations of the spin-Boson dynamics and the absorption line shape of molecular dimers show that the HEOM formalism for high order perturbations can serve as an important tool in studying the quantum dissipative dynamics in the intermediate coupling regime.

  2. Simple and Compact Expressions for Neutrino Oscillation Probabilities in Matter

    E-Print Network [OSTI]

    Minakata, Hisakazu

    2015-01-01T23:59:59.000Z

    We reformulate perturbation theory for neutrino oscillations in matter with an expansion parameter related to the ratio of the solar to the atmospheric Delta m^2 scales. Unlike previous works, we use a renormalized basis in which certain first-order effects are taken into account in the zeroth-order Hamiltonian. Using this perturbation theory we derive extremely compact expressions for the neutrino oscillation probabilities in matter. We find, for example, that the $\

  3. Extreme Scale Visual Analytics

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL] [ORNL; Potok, Thomas E [ORNL] [ORNL; Pullum, Laura L [ORNL] [ORNL; Ramanathan, Arvind [ORNL] [ORNL; Shipman, Galen M [ORNL] [ORNL; Thornton, Peter E [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Given the scale and complexity of today s data, visual analytics is rapidly becoming a necessity rather than an option for comprehensive exploratory analysis. In this paper, we provide an overview of three applications of visual analytics for addressing the challenges of analyzing climate, text streams, and biosurveilance data. These systems feature varying levels of interaction and high performance computing technology integration to permit exploratory analysis of large and complex data of global significance.

  4. Supergranulation Scale Connection Simulations

    E-Print Network [OSTI]

    R. F. Stein; A. Nordlund; D. Georgobiani; D. Benson; W. Schaffenberger

    2008-11-04T23:59:59.000Z

    Results of realistic simulations of solar surface convection on the scale of supergranules (96 Mm wide by 20 Mm deep) are presented. The simulations cover only 10% of the geometric depth of the solar convection zone, but half its pressure scale heights. They include the hydrogen, first and most of the second helium ionization zones. The horizontal velocity spectrum is a power law and the horizontal size of the dominant convective cells increases with increasing depth. Convection is driven by buoyancy work which is largest close to the surface, but significant over the entire domain. Close to the surface buoyancy driving is balanced by the divergence of the kinetic energy flux, but deeper down it is balanced by dissipation. The damping length of the turbulent kinetic energy is 4 pressure scale heights. The mass mixing length is 1.8 scale heights. Two thirds of the area is upflowing fluid except very close to the surface. The internal (ionization) energy flux is the largest contributor to the convective flux for temperatures less than 40,000 K and the thermal energy flux is the largest contributor at higher temperatures. This data set is useful for validating local helioseismic inversion methods. Sixteen hours of data are available as four hour averages, with two hour cadence, at steinr.msu.edu/~bob/96averages, as idl save files. The variables stored are the density, temperature, sound speed, and three velocity components. In addition, the three velocity components at 200 km above mean continuum optical depth unity are available at 30 sec. cadence.

  5. Arbitrary Function Generator LSN-

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

    within the injector synchrotron cycle: 1) injection timing signal is sent to the microprocessor for synchronization, 2) the UGCG is programmed with new DC bias data, and 3)...

  6. Nonlinear closures for scale separation in supersonic magnetohydrodynamic turbulence

    E-Print Network [OSTI]

    Grete, Philipp; Schmidt, Wolfram; Schleicher, Dominik R G; Federrath, Christoph

    2015-01-01T23:59:59.000Z

    Turbulence in compressible plasma plays a key role in many areas of astrophysics and engineering. The extreme plasma parameters in these environments, e.g. high Reynolds numbers, supersonic and super-Alfvenic flows, however, make direct numerical simulations computationally intractable even for the simplest treatment -- magnetohydrodynamics (MHD). To overcome this problem one can use subgrid-scale (SGS) closures -- models for the influence of unresolved, subgrid-scales on the resolved ones. In this work we propose and validate a set of constant coefficient closures for the resolved, compressible, ideal MHD equations. The subgrid-scale energies are modeled by Smagorinsky-like equilibrium closures. The turbulent stresses and the electromotive force (EMF) are described by expressions that are nonlinear in terms of large scale velocity and magnetic field gradients. To verify the closures we conduct a priori tests over 137 simulation snapshots from two different codes with varying ratios of thermal to magnetic pre...

  7. Universality and scaling limit of weakly-bound tetramers

    E-Print Network [OSTI]

    M. R. Hadizadeh; M. T. Yamashita; Lauro Tomio; A. Delfino; T. Frederico

    2011-01-02T23:59:59.000Z

    The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two consecutive tetramer states, is revealed, considering a renormalized zero-range two-body interaction applied to four identical bosons. The tetramer energy spectrum is obtained when adding a boson to an Efimov bound state with energy $B_3$ in the unitary limit (for zero two-body binding, or infinite two-body scattering length). Each excited $N-$th tetramer energy $B_4^{(N)}$ is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio $B_4^ {(N)}/B_3 \\simeq 4.6$, which does not depend on $N$. The new scale can also be revealed by a resonance in the atom-trimer recombination process.

  8. Universality and scaling limit of weakly-bound tetramers

    E-Print Network [OSTI]

    Hadizadeh, M R; Tomio, Lauro; Delfino, A; Frederico, T

    2011-01-01T23:59:59.000Z

    The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two consecutive tetramer states, is revealed, considering a renormalized zero-range two-body interaction applied to four identical bosons. The tetramer energy spectrum is obtained when adding a boson to an Efimov bound state with energy $B_3$ in the unitary limit (for zero two-body binding, or infinite two-body scattering length). Each excited $N-$th tetramer energy $B_4^{(N)}$ is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio $B_4^ {(N)}/B_3 \\simeq 4.6$, which does not depend on $N$. The new scale can also be revealed by a resonance in the atom-trimer recombination process.

  9. U-058: Apache Struts Conversion Error OGNL Expression Injection...

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

    A vulnerability was reported in Apache Struts. A remote user can execute arbitrary commands on the target system. PLATFORM: Apache Struts 2.x ABSTRACT: Apache Struts Conversion...

  10. Ratings of everyday academic and cognitive skills in evaluation of school learning and learning problems: initial scale development and validation 

    E-Print Network [OSTI]

    Lamb, Gordon Dale

    2008-10-10T23:59:59.000Z

    . vii NOMENCLATURE ASI Academic Skills Index ACSI Academic and Cognitive Skills Index CSI Cognitive Skills Index Lang Language Scale Lear Learning Scale Math Math Scale MeAc Academic-Related Memory Subscale MeEv Memory for Events Subscale Me...Pe Personal-Related Memory Subscale MeSc Memory for Schedules Subscale Memo Memory Scale PrSo Problem Solving Scale Read Reading Scale SyEx Symbolic Expressive Language Subtest SyRe Symbolic Receptive Language Subtest Symb Symbolic Language Subscale Ve...

  11. Collective systems for creative expression

    E-Print Network [OSTI]

    Ar?kan, Harun Burak

    2006-01-01T23:59:59.000Z

    This thesis defines collective systems as a unique category of creative expression through the procedures of micro and macro cycles that address the transition from connectivity to collectivity. This thesis discusses the ...

  12. The San Jose Scale.

    E-Print Network [OSTI]

    Conradi, Albert F.

    1906-01-01T23:59:59.000Z

    for controlling the scale. The most important spray mixtures in use are lime-sulphur salt, lime-sulphur, whale oil soap, kero? sene, crude petroleum, Kero-water, and kerosene or crude oil emulsions. All these preparations are mainly winter sprays, being applied... applied while cold, however, it clogs the apparatus and causes considerable inconven? ience in getting it on the tree. It is more expensive than the Lime- Sulphur wash. i I o . B I 3 I 2 In some States coal oil or kerosene has been experimented...

  13. The San Jose Scale

    E-Print Network [OSTI]

    Conradi, Albert F.

    1906-01-01T23:59:59.000Z

    of which caused a violent cooking. After the lime had been slaked the salt was added ^ and the entire mixture violently boiled for 45 minutes, when it became a dark amber color. It was applied while hot. This ap? plication was made to peach trees... for controlling the scale. The most important spray mixtures in use are lime-sulphur salt, lime-sulphur, whale oil soap, kero? sene, crude petroleum, Kero-water, and kerosene or crude oil emulsions. All these preparations are mainly winter sprays, being applied...

  14. Megawatt Electrolysis Scale Up

    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 DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment3311, 3312), OctoberMay 18-19, 2004MW Electrolysis Scale Up E

  15. WPo4.9 SIMULATION OF IFE CHAMBER DYNAMIC RESPONSE BY A SECOND ORDER GODUNOV METHOD WITH ARBITRARY GEOMETRY

    E-Print Network [OSTI]

    Najmabadi, Farrokh

    explosion. After the target-generated X-rays and ion debris traverse the chamber, the chamber environment scale occur in the chamber following the target explosion. The resultant X-rays, ion debris and neutron from the target travel through the chamber. Depending on the chamber constituents, X-rays and ion

  16. Transition from Large-Scale to Small-Scale Dynamo

    SciTech Connect (OSTI)

    Ponty, Y. [Universite de Nice Sophia-Antipolis, CNRS, Observatoire de la Cote d'Azur, B.P. 4229, Nice cedex 04 (France); Plunian, F. [Institut des Sciences de la Terre, CNRS, Universite Joseph Fourier, B.P. 53, 38041 Grenoble cedex 09 (France)

    2011-04-15T23:59:59.000Z

    The dynamo equations are solved numerically with a helical forcing corresponding to the Roberts flow. In the fully turbulent regime the flow behaves as a Roberts flow on long time scales, plus turbulent fluctuations at short time scales. The dynamo onset is controlled by the long time scales of the flow, in agreement with the former Karlsruhe experimental results. The is governed by a generalized {alpha} effect, which includes both the usual {alpha} effect and turbulent diffusion, plus all higher order effects. Beyond the onset we find that this generalized {alpha} effect scales as O(Rm{sup -1}), suggesting the takeover of small-scale dynamo action. This is confirmed by simulations in which dynamo occurs even if the large-scale field is artificially suppressed.

  17. Inflation from Broken Scale Invariance

    E-Print Network [OSTI]

    Csaba Csaki; Nemanja Kaloper; Javi Serra; John Terning

    2014-06-19T23:59:59.000Z

    We construct a model of inflation based on a low-energy effective theory of spontaneously broken global scale invariance. This provides a shift symmetry that protects the inflaton potential from quantum corrections. Since the underlying scale invariance is non-compact, arbitrarily large inflaton field displacements are readily allowed in the low-energy effective theory. A weak breaking of scale invariance by almost marginal operators provides a non-trivial inflaton minimum, which sets and stabilizes the final low-energy value of the Planck scale. The underlying scale invariance ensures that the slow-roll approximation remains valid over large inflaton displacements, and yields a scale invariant spectrum of perturbations as required by the CMB observations.

  18. Scaling of structural failure

    SciTech Connect (OSTI)

    Bazant, Z.P. [Northwestern Univ., Evanston, IL (United States); Chen, Er-Ping [Sandia National Lab., Albuquerque, NM (United States)

    1997-01-01T23:59:59.000Z

    This article attempts to review the progress achieved in the understanding of scaling and size effect in the failure of structures. Particular emphasis is placed on quasibrittle materials for which the size effect is complicated. Attention is focused on three main types of size effects, namely the statistical size effect due to randomness of strength, the energy release size effect, and the possible size effect due to fractality of fracture or microcracks. Definitive conclusions on the applicability of these theories are drawn. Subsequently, the article discusses the application of the known size effect law for the measurement of material fracture properties, and the modeling of the size effect by the cohesive crack model, nonlocal finite element models and discrete element models. Extensions to compression failure and to the rate-dependent material behavior are also outlined. The damage constitutive law needed for describing a microcracked material in the fracture process zone is discussed. Various applications to quasibrittle materials, including concrete, sea ice, fiber composites, rocks and ceramics are presented.

  19. Large scale tracking algorithms.

    SciTech Connect (OSTI)

    Hansen, Ross L.; Love, Joshua Alan; Melgaard, David Kennett; Karelitz, David B.; Pitts, Todd Alan; Zollweg, Joshua David; Anderson, Dylan Z.; Nandy, Prabal; Whitlow, Gary L.; Bender, Daniel A.; Byrne, Raymond Harry

    2015-01-01T23:59:59.000Z

    Low signal-to-noise data processing algorithms for improved detection, tracking, discrimination and situational threat assessment are a key research challenge. As sensor technologies progress, the number of pixels will increase signi cantly. This will result in increased resolution, which could improve object discrimination, but unfortunately, will also result in a significant increase in the number of potential targets to track. Many tracking techniques, like multi-hypothesis trackers, suffer from a combinatorial explosion as the number of potential targets increase. As the resolution increases, the phenomenology applied towards detection algorithms also changes. For low resolution sensors, "blob" tracking is the norm. For higher resolution data, additional information may be employed in the detection and classfication steps. The most challenging scenarios are those where the targets cannot be fully resolved, yet must be tracked and distinguished for neighboring closely spaced objects. Tracking vehicles in an urban environment is an example of such a challenging scenario. This report evaluates several potential tracking algorithms for large-scale tracking in an urban environment.

  20. Scale Insects on Ornamental Plants 

    E-Print Network [OSTI]

    Muegge, Mark A.; Merchant, Michael E.

    2000-08-21T23:59:59.000Z

    Scale insects on o rnamental plants B-6097 8-00 Mark A. Muegge and Michael Merchant* M any species of scale insects damage land- scape plants, shrubs and trees. Scale insects insert their mouthparts into plant tissues and suck out the sap. When... period. Most species never move again in their lives. Scale insects feed by inserting their hairlike mouth- parts into plant tissue and siphoning the plant?s sap. While feeding, many species excrete a sweet, sticky liquid referred to as ?honeydew...

  1. Isotopic Scaling in Nuclear Reactions

    E-Print Network [OSTI]

    M. B. Tsang; W. A. Friedman; C. K. Gelbke; W. G. Lynch; G. Verde; H. Xu

    2001-03-26T23:59:59.000Z

    A three parameter scaling relationship between isotopic distributions for elements with Z$\\leq 8$ has been observed that allows a simple description of the dependence of such distributions on the overall isospin of the system. This scaling law (termed iso-scaling) applies for a variety of reaction mechanisms that are dominated by phase space, including evaporation, multifragmentation and deeply inelastic scattering. The origins of this scaling behavior for the various reaction mechanisms are explained. For multifragmentation processes, the systematics is influenced by the density dependence of the asymmetry term of the equation of state.

  2. sed and awk Regular Expressions

    E-Print Network [OSTI]

    Mohri, Mehryar

    at a time, like grep · Change lines of the file · Non-interactive text editor ­ Editing commands come in order to each input line. · If a command changes the input, subsequent command address will be applied and an action, where the address can be a regular expression or line number. address action command address

  3. Scale, scaling and multifractals in geophysics: twenty Shaun Lovejoy1

    E-Print Network [OSTI]

    Lovejoy, Shaun

    Scale, scaling and multifractals in geophysics: twenty years on Shaun Lovejoy1 and Daniel Schertzer number of degrees of freedom approaches to nonlin- ear geophysics: a) the transition from fractal are generally necessary for geophysical applications. We illustrate these ideas with data analyses from both

  4. Industrial Scale Demonstration of Smart Manufacturing Achieving...

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

    Scale Demonstration of Smart Manufacturing Achieving Transformational Energy Productivity Gains Industrial Scale Demonstration of Smart Manufacturing Achieving...

  5. Cubic-scaling algorithm and self-consistent field for the random-phase approximation with second-order screened exchange

    SciTech Connect (OSTI)

    Moussa, Jonathan E., E-mail: godotalgorithm@gmail.com [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

    2014-01-07T23:59:59.000Z

    The random-phase approximation with second-order screened exchange (RPA+SOSEX) is a model of electron correlation energy with two caveats: its accuracy depends on an arbitrary choice of mean field, and it scales as O(n{sup 5}) operations and O(n{sup 3}) memory for n electrons. We derive a new algorithm that reduces its scaling to O(n{sup 3}) operations and O(n{sup 2}) memory using controlled approximations and a new self-consistent field that approximates Brueckner coupled-cluster doubles theory with RPA+SOSEX, referred to as Brueckner RPA theory. The algorithm comparably reduces the scaling of second-order Møller-Plesset perturbation theory with smaller cost prefactors than RPA+SOSEX. Within a semiempirical model, we study H{sub 2} dissociation to test accuracy and H{sub n} rings to verify scaling.

  6. Implicit Scaling in Ecological Research

    E-Print Network [OSTI]

    Tullos, Desiree

    - sion, and abstruse structures, such as communities and ecosystems. The diversity of organisms and eco. It was our supposition that the often unrecognized relation- ship between organism/concept and scale should- ination, we hope to raise ecologists' awareness of scale-dependent rela- tionships among organisms and eco

  7. Renormalization Group Analysis of Finite-Size Scaling in the $?^4_4$ Model

    E-Print Network [OSTI]

    R. Kenna; C. B. Lang

    1992-10-08T23:59:59.000Z

    A finite-size scaling theory for the $\\phi^4_4$ model is derived using renormalization group methods. Particular attention is paid to the partition function zeroes, in terms of which all thermodynamic observables can be expressed. While the leading scaling behaviour is identical to that of mean field theory, there exist multiplicative logarithmic corrections too. A non-perturbative test of these formulae in the form of a high precision Monte Carlo analysis reveals good quantitative agreement with the analytical predictions.

  8. Logarithmic violation of scaling in strongly anisotropic turbulent transfer of a passive vector field

    E-Print Network [OSTI]

    N. V. Antonov; N. M. Gulitskiy

    2015-01-21T23:59:59.000Z

    Inertial-range asymptotic behavior of a vector (e.g., magnetic) field, passively advected by a strongly anisotropic turbulent flow, is studied by means of the field theoretic renormalization group and the operator product expansion. The advecting velocity field is Gaussian, not correlated in time, with the pair correlation function of the form $\\propto \\delta(t-t') / k_{\\bot}^{d-1+\\xi}$, where $k_{\\bot}=|{\\bf k}_{\\bot}|$ and ${\\bf k}_{\\bot}$ is the component of the wave vector, perpendicular to the distinguished direction (`direction of the flow') -- the $d$-dimensional generalization of the ensemble introduced by Avellaneda and Majda [{\\it Commun. Math. Phys.} {\\bf 131}: 381 (1990)]. The stochastic advection-diffusion equation for the transverse (divergence-free) vector field includes, as special cases, the kinematic dynamo model for magnetohydrodynamic turbulence and the linearized Navier--Stokes equation. In contrast to the well known isotropic Kraichnan's model, where various correlation functions exhibit anomalous scaling behavior with infinite sets of anomalous exponents, here the dependence on the integral turbulence scale $L$ has a logarithmic behavior: instead of power-like corrections to ordinary scaling, determined by naive (canonical) dimensions, the anomalies manifest themselves as polynomials of logarithms of $L$. The key point is that the matrices of scaling dimensions of the relevant families of composite operators appear nilpotent and cannot be diagonalized. The detailed proof of this fact is given for correlation functions of arbitrary order.

  9. A localised subgrid scale model for fluid dynamical simulations in astrophysics I: Theory and numerical tests

    E-Print Network [OSTI]

    W. Schmidt; J. C. Niemeyer; W. Hillebrandt

    2006-01-23T23:59:59.000Z

    We present a one-equation subgrid scale model that evolves the turbulence energy corresponding to unresolved velocity fluctuations in large eddy simulations. The model is derived in the context of the Germano consistent decomposition of the hydrodynamical equations. The eddy-viscosity closure for the rate of energy transfer from resolved toward subgrid scales is localised by means of a dynamical procedure for the computation of the closure parameter. Therefore, the subgrid scale model applies to arbitrary flow geometry and evolution. For the treatment of microscopic viscous dissipation a semi-statistical approach is used, and the gradient-diffusion hypothesis is adopted for turbulent transport. A priori tests of the localised eddy-viscosity closure and the gradient-diffusion closure are made by analysing data from direct numerical simulations. As an a posteriori testing case, the large eddy simulation of thermonuclear combustion in forced isotropic turbulence is discussed. We intend the formulation of the subgrid scale model in this paper as a basis for more advanced applications in numerical simulations of complex astrophysical phenomena involving turbulence.

  10. Eliminating the Renormalization Scale Ambiguity for Top-Pair Production Using the Principle of Maximum Conformality

    SciTech Connect (OSTI)

    Brodsky, Stanley J.; /SLAC; Wu, Xing-Gang; /Chongqing U.

    2012-04-02T23:59:59.000Z

    The uncertainty in setting the renormalization scale in finite-order perturbative QCD predictions using standard methods substantially reduces the precision of tests of the Standard Model in collider experiments. It is conventional to choose a typical momentum transfer of the process as the renormalization scale and take an arbitrary range to estimate the uncertainty in the QCD prediction. However, predictions using this procedure depend on the choice of renormalization scheme, leave a non-convergent renormalon perturbative series, and moreover, one obtains incorrect results when applied to QED processes. In contrast, if one fixes the renormalization scale using the Principle of Maximum Conformality (PMC), all non-conformal {l_brace}{beta}{sub i}{r_brace}-terms in the perturbative expansion series are summed into the running coupling, and one obtains a unique, scale-fixed, scheme-independent prediction at any finite order. The PMC renormalization scale {mu}{sub R}{sup PMC} and the resulting finite-order PMC prediction are both to high accuracy independent of choice of the initial renormalization scale {mu}{sub R}{sup init}, consistent with renormalization group invariance. Moreover, after PMC scale-setting, the n!-growth of the pQCD expansion is eliminated. Even the residual scale-dependence at fixed order due to unknown higher-order {l_brace}{beta}{sub i}{r_brace}-terms is substantially suppressed. As an application, we apply the PMC procedure to obtain NNLO predictions for the t{bar t}-pair hadroproduction cross-section at the Tevatron and LHC colliders. There are no renormalization scale or scheme uncertainties, thus greatly improving the precision of the QCD prediction. The PMC prediction for {sigma}{sub t{bar t}} is larger in magnitude in comparison with the conventional scale-setting method, and it agrees well with the present Tevatron and LHC data. We also verify that the initial scale-independence of the PMC prediction is satisfied to high accuracy at the NNLO level: the total cross-section remains almost unchanged even when taking very disparate initial scales {mu}{sub R}{sup init} equal to m{sub t}, 20 m{sub t}, {radical}s.

  11. Geometric frequency shift for electric dipole searches with trapped spin-1/2 particles in general fields and measurement cells of arbitrary shape with smooth or rough walls

    E-Print Network [OSTI]

    A. Steyerl; C. Kaufman; G. Müller; R. Golub

    2015-05-13T23:59:59.000Z

    The important role of geometric phases in searches for a permanent electric dipole moment of the neutron, using Ramsey separated oscillatory field nuclear magnetic resonance, was first investigated by Pendlebury $\\textit{et al.}$ [Phys. Rev. A $\\mathbf{70}$, 032102 (2004)]. Their analysis was based on the Bloch equations. In subsequent work using the spin density matrix Lamoreaux and Golub [Phys. Rev. A $\\mathbf{71}$, 032104 (2005)] showed the usual relation between the frequency shifts and the correlation functions of the fields seen by trapped particles in general fields (Redfield theory). More recently we presented a solution of the Schr\\"odinger equation for spin-$1/2$ particles in circular cylindrical traps with smooth walls and exposed to arbitrary fields [Steyerl $\\textit{et al.}$, Phys.Rev. A $\\mathbf{89}$, 052129 (2014)]. Here we extend this work to show how the Redfield theory follows directly from the Schr\\"odinger equation solution and include wall roughness, cylindrical trap geometry with arbitrary cross section, and field perturbations that do not, in the frame of the moving particles, average to zero in time and which, therefore, do not satisfy the prerequisites of the statistical approach based on the spin-density matrix. We show by direct, detailed, calculation the agreement of the results from the Schr\\"odinger equation with the Redfield theory for the cases of a rectangular cell with specular walls and of a circular cell with diffuse reflecting walls.

  12. Hydranet: network support for scaling of large scale servic es

    E-Print Network [OSTI]

    Chawla, Hamesh

    1998-01-01T23:59:59.000Z

    With the explosive growth of demand for services on the Internet, the networking infrastructure (routers 7 protocols, servers) is under considerable stress. Mechanisms are needed for current and future IP services to scale in a client transparent...

  13. Scale Insects on Ornamental Plants

    E-Print Network [OSTI]

    Muegge, Mark A.; Merchant, Michael E.

    2000-08-21T23:59:59.000Z

    of all insect groups. Scale insects are generally small ( 1 /4 inch long or less) and often mimic various plant parts, such as bark and buds. Other species appear as small, white, waxy blotches or small bits of cotton on leaves and stems. The one... crawlers are pre- sent, they will fall onto the paper, where you can eas- ily see them moving about. Using natural enemies to control scales Many natural enemies?small parasitic wasps, lady- bird beetles and some fungi?can significantly reduce scale insect...

  14. Homogeneous isotropic turbulence in dilute polymers: scale by scale budget

    E-Print Network [OSTI]

    E. De Angelis; C. M. Casciola; R. Benzi; R. Piva

    2002-08-09T23:59:59.000Z

    The turbulent energy cascade in dilute polymers solution is addressed here by considering a direct numerical simulation of homogeneous isotropic turbulence of a FENE-P fluid in a triply periodic box. On the basis of the DNS data, a scale by scale analysis is provided by using the proper extension to visco-elastic fluids of the Karman-Howarth equation for the velocity. For the microstructure, an equation, analogous to the Yaglom equation for scalars, is proposed for the free-energy density associated to the elastic behavior of the material. Two mechanisms of energy removal from the scale of the forcing are identified, namely the classical non-linear transfer term of the standard Navier-Stokes equations and the coupling between macroscopic velocity and microstructure. The latter, on average, drains kinetic energy to feed the dynamics of the microstructure. The cross-over scale between the two corresponding energy fluxes is identified, with the flux associated with the microstructure dominating at small separations to become sub-leading above the cross-over scale, which is the equivalent of the elastic limit scale defined by De Gennes-Tabor on the basis of phenomenological assumptions.

  15. On expressive punishment and holisitic desert

    E-Print Network [OSTI]

    Greenblum, Jake

    2009-05-15T23:59:59.000Z

    Expressive theories of punishment incorporate both deontological and consequentialist components. The deontological element claims that punishment expresses the value of both victim and wrongdoer. The consequentialist element claims that punishment...

  16. Commercial Scale Wind Incentive Program

    Broader source: Energy.gov [DOE]

    Energy Trust of Oregon’s Commercial Scale Wind offering provides resources and cash incentives to help communities, businesses land owners, and government entities install wind turbine systems up...

  17. Sizing Up Allometric Scaling Theory

    E-Print Network [OSTI]

    Savage, Van M.; Deeds, Eric J.; Fontana, Walter

    2008-09-12T23:59:59.000Z

    Metabolic rate, heart rate, lifespan, and many other physiological properties vary with body mass in systematic and interrelated ways. Present empirical data suggest that these scaling relationships take the form of power ...

  18. Pilot Scale Advanced Fogging Demonstration

    SciTech Connect (OSTI)

    Demmer, Rick L. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Fox, Don T. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Archiblad, Kip E. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-01-01T23:59:59.000Z

    Experiments in 2006 developed a useful fog solution using three different chemical constituents. Optimization of the fog recipe and use of commercially available equipment were identified as needs that had not been addressed. During 2012 development work it was noted that low concentrations of the components hampered coverage and drying in the United Kingdom’s National Nuclear Laboratory’s testing much more so than was evident in the 2006 tests. In fiscal year 2014 the Idaho National Laboratory undertook a systematic optimization of the fogging formulation and conducted a non-radioactive, pilot scale demonstration using commercially available fogging equipment. While not as sophisticated as the equipment used in earlier testing, the new approach is much less expensive and readily available for smaller scale operations. Pilot scale testing was important to validate new equipment of an appropriate scale, optimize the chemistry of the fogging solution, and to realize the conceptual approach.

  19. Simulation, models, and refactoring of bacteriophage T7 gene expression

    E-Print Network [OSTI]

    Kosuri, Sriram

    2007-01-01T23:59:59.000Z

    Our understanding of why biological systems are designed in a particular way would benefit from biophysically-realistic models that can make accurate predictions on the time-evolution of molecular events given arbitrary ...

  20. Towards Efficient Structural Analysis of Mathematical Expressions

    E-Print Network [OSTI]

    Yeung, Dit-Yan

    . Experiments done on some typical mathematical expressions show that our proposed methods can achieve speedup, structural analysis 1 Introduction Many documents in science and engineering disciplines contain mathematical expressions. The input of mathematical expressions into computers is often more difficult than the input

  1. Deformation Expression for Elements of Algebra

    E-Print Network [OSTI]

    H. Omori; Y. Maeda; N. Miyazaki; A. Yoshioka

    2011-04-09T23:59:59.000Z

    The purpose of this paper is to give a notion of deformation of expressions for elements of algebra. Deformation quantization (cf.[BF]) deforms the commutative world to a non-commutative world. However, this involves deformation of expression of elements of algebras even from a commutative world to another commutative world. This is indeed a deformation of expressions for elements of algebra.

  2. Radiation-Induced Micro-RNA Expression Changes in Peripheral Blood Cells of Radiotherapy Patients

    SciTech Connect (OSTI)

    Templin, Thomas; Paul, Sunirmal; Amundson, Sally A.; Young, Erik F. [Center for Radiological Research, Department of Radiation Oncology, Columbia University Medical Center, New York, NY (United States); Barker, Christopher A.; Wolden, Suzanne L. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Smilenov, Lubomir B., E-mail: lbs5@columbia.ed [Center for Radiological Research, Department of Radiation Oncology, Columbia University Medical Center, New York, NY (United States)

    2011-06-01T23:59:59.000Z

    Purpose: MicroRNAs (miRNAs), a class of noncoding small RNAs that regulate gene expression, are involved in numerous physiologic processes in normal and malignant cells. Our in vivo study measured miRNA and gene expression changes in human blood cells in response to ionizing radiation, to develop miRNA signatures that can be used as biomarkers for radiation exposure. Methods and Materials: Blood from 8 radiotherapy patients in complete remission 1 or 2 was collected immediately before and 4 hours after total body irradiation with 1.25 Gy x-rays. Both miRNA and gene expression changes were measured by means of quantitative polymerase chain reaction and microarray hybridization, respectively. Hierarchic clustering, multidimensional scaling, class prediction, and gene ontology analysis were performed to investigate the potential of miRNAs to serve as radiation biomarkers and to elucidate their likely physiologic roles in the radiation response. Results: The expression levels of 45 miRNAs were statistically significantly upregulated 4 hours after irradiation with 1.25 Gy x-rays, 27 of them in every patient. Nonirradiated and irradiated samples form separate clusters in hierarchic clustering and multidimensional scaling. Out of 223 differentially expressed genes, 37 were both downregulated and predicted targets of the upregulated miRNAs. Paired and unpaired miRNA-based classifiers that we developed can predict the class membership of a sample with unknown irradiation status, with accuracies of 100% when all 45 upregulated miRNAs are included. Both miRNA control of and gene involvement in biologic processes such as hemopoiesis and the immune response are increased after irradiation, whereas metabolic processes are underrepresented among all differentially expressed genes and the genes controlled by miRNAs. Conclusions: Exposure to ionizing radiation leads to the upregulation of the expression of a considerable proportion of the human miRNAome of peripheral blood cells. These miRNA expression signatures can be used as biomarkers of radiation exposure.

  3. Homotypic clusters of transcription factor binding sites: a model system for understanding the physical mechanics of gene expression

    E-Print Network [OSTI]

    Ezer, Daphne; Zabet, Nicolae Radu; Adryan, Boris

    2014-08-01T23:59:59.000Z

    for studying complex CREs Recently, it has become possible to synthesize thousands of pro- moters or enhancers, and tomeasure the resulting level of gene expres- sion in parallel, an experimental design known as a massively parallel gene expression assay [9... heterotypic clusters influence gene expression. As the number of adjacent TF binding sites increases, the number of possible permutations of binding sites expands at a factorial scale. The distance between the binding sites and the order of the binding sites...

  4. A Tree Swaying in a Turbulent Wind: A Scaling Analysis

    E-Print Network [OSTI]

    Theo Odijk

    2014-07-10T23:59:59.000Z

    A tentative scaling theory is presented of a tree swaying in a turbulent wind. It is argued that the turbulence of the air within the crown is in the inertial regime. An eddy causes a dynamic bending response of the branches according to a time criterion. The resulting expression for the penetration depth of the wind yields an exponent which appears to be consistent with that pertaining to the morphology of the tree branches. An energy criterion shows that the dynamics of the branches is basically passive. The possibility of hydrodynamic screening by the leaves is discussed.

  5. Geometric frequency shift for electric dipole searches with trapped spin-1/2 particles in general fields and measurement cells of arbitrary shape with smooth or rough walls

    E-Print Network [OSTI]

    Steyerl, A; Müller, G; Golub, R

    2015-01-01T23:59:59.000Z

    The important role of geometric phases in searches for a permanent electric dipole moment of the neutron, using Ramsey separated oscillatory field nuclear magnetic resonance, was first investigated by Pendlebury $\\textit{et al.}$ [Phys. Rev. A $\\mathbf{70}$, 032102 (2004)]. Their analysis was based on the Bloch equations. In subsequent work using the spin density matrix Lamoreaux and Golub [Phys. Rev. A $\\mathbf{71}$, 032104 (2005)] showed the usual relation between the frequency shifts and the correlation functions of the fields seen by trapped particles in general fields (Redfield theory). More recently we presented a solution of the Schr\\"odinger equation for spin-$1/2$ particles in circular cylindrical traps with smooth walls and exposed to arbitrary fields [Steyerl $\\textit{et al.}$, Phys.Rev. A $\\mathbf{89}$, 052129 (2014)]. Here we extend this work to show how the Redfield theory follows directly from the Schr\\"odinger equation solution and include wall roughness, cylindrical trap geometry with arbitra...

  6. TORP (Tertiary Oil Recovery Project) stream tube model for waterflood performance calculations in a reservoir with arbitrary well patterns and irregular boundaries

    SciTech Connect (OSTI)

    Vossoughi, S.

    1981-01-01T23:59:59.000Z

    The Tertiary Oil Recovery Project stream tube model was developed as a tool to help oil operators in Kansas evaluate and understand their waterflood projects in a more systematic approach. The model utilizes the stream tube concept and Buckley-Leverett theory and can be applied to any homogeneous reservoir with arbitrary well patterns and regular or irregular boundaries. It also can be applied to tracer projects to estimate tracer breakthrough time if the tracer is injected during the stage of high water-oil ratio. The computer package has been prepared in a fashion such that minimum effort and interaction are required for the user to obtain the final results from specified input data. The model was applied to an example problem consisting of a 5-spot pattern. 19 references.

  7. A tree-decomposed transfer matrix for computing exact Potts model partition functions for arbitrary graphs, with applications to planar graph colourings

    E-Print Network [OSTI]

    Andrea Bedini; Jesper Lykke Jacobsen

    2010-08-06T23:59:59.000Z

    Combining tree decomposition and transfer matrix techniques provides a very general algorithm for computing exact partition functions of statistical models defined on arbitrary graphs. The algorithm is particularly efficient in the case of planar graphs. We illustrate it by computing the Potts model partition functions and chromatic polynomials (the number of proper vertex colourings using Q colours) for large samples of random planar graphs with up to N=100 vertices. In the latter case, our algorithm yields a sub-exponential average running time of ~ exp(1.516 sqrt(N)), a substantial improvement over the exponential running time ~ exp(0.245 N) provided by the hitherto best known algorithm. We study the statistics of chromatic roots of random planar graphs in some detail, comparing the findings with results for finite pieces of a regular lattice.

  8. Stochastic Ordering of Interferences in Large-scale Wireless Networks

    E-Print Network [OSTI]

    Lee, Junghoon

    2012-01-01T23:59:59.000Z

    Stochastic orders are binary relations defined on probability distributions which capture intuitive notions like being larger or being more variable. This paper introduces stochastic ordering of interference distributions in large-scale networks modeled as point process. Interference is the main performance-limiting factor in most wireless networks, thus it is important to understand its statistics. Since closed-form results for the distribution of interference for such networks are only available in limited cases, interference of networks are compared using stochastic orders, even when closed form expressions for interferences are not tractable. We show that the interference from a large-scale network depends on the fading distributions with respect to the stochastic Laplace transform order. The condition for path-loss models is also established to have stochastic ordering between interferences. The stochastic ordering of interferences between different networks are also shown. Monte-Carlo simulations are us...

  9. GLOBAL AND ADAPTIVE SCALING IN A SEPARABLE ...

    E-Print Network [OSTI]

    2007-10-19T23:59:59.000Z

    programs confirm that Adaptive Global Scaling subsumes former scaling ...... Then, the compact convex set B of symmetric matrices eigeinvalues of which.

  10. Sandia National Laboratories: characterizing Scaled Wind Farm...

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

    characterizing Scaled Wind Farm Technology facility inflow Characterizing Scaled Wind Farm Technology Facility Inflow On April 1, 2014, in Energy, News, News & Events, Partnership,...

  11. Scaling Properties of Universal Tetramers

    SciTech Connect (OSTI)

    Hadizadeh, M. R.; Yamashita, M. T. [Instituto de Fisica Teorica, Universidade Estadual Paulista, 01140-070, Sao Paulo, SP (Brazil); Tomio, Lauro [Instituto de Fisica Teorica, Universidade Estadual Paulista, 01140-070, Sao Paulo, SP (Brazil); Instituto de Fisica, Universidade Federal Fluminense, 24210-346, Niteroi, RJ (Brazil); Delfino, A. [Instituto de Fisica, Universidade Federal Fluminense, 24210-346, Niteroi, RJ (Brazil); Frederico, T. [Instituto Tecnologico de Aeronautica, 12228-900, Sao Jose dos Campos, SP (Brazil)

    2011-09-23T23:59:59.000Z

    We evidence the existence of a universal correlation between the binding energies of successive four-boson bound states (tetramers), for large two-body scattering lengths (a), related to an additional scale not constrained by three-body Efimov physics. Relevant to ultracold atom experiments, the atom-trimer relaxation peaks for |a|{yields}{infinity} when the ratio between the tetramer and trimer energies is {approx_equal}4.6 and a new tetramer is formed. The new scale is also revealed for a<0 by the prediction of a correlation between the positions of two successive peaks in the four-atom recombination process.

  12. Methods for monitoring multiple gene expression

    SciTech Connect (OSTI)

    Berka, Randy (Davis, CA); Bachkirova, Elena (Davis, CA); Rey, Michael (Davis, CA)

    2012-05-01T23:59:59.000Z

    The present invention relates to methods for monitoring differential expression of a plurality of genes in a first filamentous fungal cell relative to expression of the same genes in one or more second filamentous fungal cells using microarrays containing Trichoderma reesei ESTs or SSH clones, or a combination thereof. The present invention also relates to computer readable media and substrates containing such array features for monitoring expression of a plurality of genes in filamentous fungal cells.

  13. Methods for monitoring multiple gene expression

    DOE Patents [OSTI]

    Berka, Randy; Bachkirova, Elena; Rey, Michael

    2013-10-01T23:59:59.000Z

    The present invention relates to methods for monitoring differential expression of a plurality of genes in a first filamentous fungal cell relative to expression of the same genes in one or more second filamentous fungal cells using microarrays containing Trichoderma reesei ESTs or SSH clones, or a combination thereof. The present invention also relates to computer readable media and substrates containing such array features for monitoring expression of a plurality of genes in filamentous fungal cells.

  14. Scaling the Web Composing Web

    E-Print Network [OSTI]

    Menascé, Daniel A.

    Scaling the Web Composing Web Services:A QoS View A n Internet application can invoke several ser- vices -- a stock-trading Web service, for example, could invoke a payment service, which could then invoke an authentication service. Such a scenario is called a composite Web service, and it can

  15. Scaling of pressurized fluidized beds

    SciTech Connect (OSTI)

    Guralnik, S.; Glicksman, L.R.

    1994-10-01T23:59:59.000Z

    The project has two primary objectives. The first is to verify a set of hydrodynamic scaling relationships for commercial pressurized fluidized bed combustors (PFBC). The second objective is to investigate solids mixing in pressurized bubbling fluidized beds. American Electric Power`s (AEP) Tidd combined-cycle demonstration plant will provide time-varying pressure drop data to serve as the basis for the scaling verification. The verification will involve demonstrating that a properly scaled cold model and the Tidd PFBC exhibit hydrodynamically similar behavior. An important issue in PFBC design is the spacing of fuel feed ports. The feed spacing is dictated by the fuel distribution and the mixing characteristics within the bed. After completing the scaling verification, the cold model will be used to study the characteristics of PFBCs. A thermal tracer technique will be utilized to study mixing both near the fuel feed region and in the far field. The results allow the coal feed and distributor to be designed for optimal heating.

  16. Expression equivalence checking using interval analysis

    E-Print Network [OSTI]

    Ghodrat, Mohammad Ali; Givargis, Tony; Nicolau, Alex

    2006-01-01T23:59:59.000Z

    Z. Zhou and W. Burleson, “Equivalence checking of datapathsusing combinational equivalence for extensible processor,”et al. : EXPRESSION EQUIVALENCE CHECKING USING INTERVAL

  17. Gene expression abnormalities in the autistic brain

    E-Print Network [OSTI]

    Chow, Maggie Lok Mun

    2011-01-01T23:59:59.000Z

    lymphoblastoid cell lines (LCLs) derived from individualsby profiling gene expression in LCLs derived from livingsubjects. LCLs derived from (1) three monozygotic twin pairs

  18. LOS ALAMOS NATIONAL LABORATORY - EXPRESS LICENSING PROGRAM

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

    LOS ALAMOS NATIONAL LABORATORY - EXPRESS LICENSING PROGRAM NON-EXCLUSIVE PATENT LICENSE AGREEMENT This Agreement between Los Alamos National Security, LLC ("LANS"), under its...

  19. Rocky Mountain Power- FinAnswer Express

    Broader source: Energy.gov [DOE]

    Rocky Mountain Power's FinAnswer Express Program provides extensive incentives and for lighting, HVAC, food service, agricultural, and compressed air equipment. Retrofits of facilities and upgrades...

  20. Rocky Mountain Power- FinAnswer Express

    Broader source: Energy.gov [DOE]

    Rocky Mountain Power's FinAnswer Express Program includes incentives and technical assistance for lighting, HVAC and other equipment upgrades that increase energy efficiency and exceed code...

  1. Visualization of Large-Scale Distributed Data

    E-Print Network [OSTI]

    Johnson, Andrew

    that are now considered the "lenses" for examining large-scale data. THE LARGE-SCALE DATA VISUALIZATIONVisualization of Large-Scale Distributed Data Jason Leigh1 , Andrew Johnson1 , Luc Renambot1 representation of data and the interactive manipulation and querying of the visualization. Large-scale data

  2. Brane World Models Need Low String Scale

    E-Print Network [OSTI]

    Antoniadis, Ignatios; Calmet, Xavier

    2011-01-01T23:59:59.000Z

    Models with large extra dimensions offer the possibility of the Planck scale being of order the electroweak scale, thus alleviating the gauge hierarchy problem. We show that these models suffer from a breakdown of unitarity at around three quarters of the low effective Planck scale. An obvious candidate to fix the unitarity problem is string theory. We therefore argue that it is necessary for the string scale to appear below the effective Planck scale and that the first signature of such models would be string resonances. We further translate experimental bounds on the string scale into bounds on the effective Planck scale.

  3. Analytically expressed constraint on two Majorana phases in neutrinoless double beta decay

    E-Print Network [OSTI]

    Maedan, Shinji

    2014-01-01T23:59:59.000Z

    We assume that neutrinoless double beta decay is caused by the exchange of three light Majorana neutrinos. Under this assumption, we obtain, by the method of perturbation, the equation representing the isocontour of effective Majorana mass which is the function of two CP-violating Majorana phases. The equation representing the isocontour (constraint equation between two Majorana phases) is expressed analytically by six parameters: two lepton mixing angles, two kinds of neutrino mass squared differences, lightest neutrino mass scale, and the effective Majorana mass. We discuss how the constraint equation between two Majorana phases changes when the lightest neutrino mass scale is varied.

  4. Differential Gene Expression Pre-processing: from CEL files to ExpressionSet

    E-Print Network [OSTI]

    Qiu, Weigang

    different between mutants and wild types Install Libraries and Load Data > source-processing: from CEL files to ExpressionSet Gene Annotation Visualize Expression Profile using Heatmap Produce

  5. Deciding Definability by Deterministic Regular Expressions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (DTD) [5] and XML Schema Definition (XSD) [10], both developed by the World Wide Web Consortium, do as well. Intuitively, a regular expression is deterministic if, when reading a word from left to right. For example, the expression (a + b) b(a + b) is not deterministic, because if we read a word that starts

  6. The scale of cosmic isotropy

    SciTech Connect (OSTI)

    Marinoni, C.; Bel, J.; Buzzi, A., E-mail: christian.marinoni@cpt.univ-mrs.fr, E-mail: Julien.Bel@cpt.univ-mrs.fr, E-mail: Adeline.Buzzi@cpt.univ-mrs.fr [Centre de Physique Théorique, Aix-Marseille Université, CNRS UMR 7332, case 907, F-13288 Marseille (France)

    2012-10-01T23:59:59.000Z

    The most fundamental premise to the standard model of the universe states that the large-scale properties of the universe are the same in all directions and at all comoving positions. Demonstrating this hypothesis has proven to be a formidable challenge. The cross-over scale R{sub iso} above which the galaxy distribution becomes statistically isotropic is vaguely defined and poorly (if not at all) quantified. Here we report on a formalism that allows us to provide an unambiguous operational definition and an estimate of R{sub iso}. We apply the method to galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 7, finding that R{sub iso} ? 150h{sup ?1}Mpc. Besides providing a consistency test of the Copernican principle, this result is in agreement with predictions based on numerical simulations of the spatial distribution of galaxies in cold dark matter dominated cosmological models.

  7. Emerging universe from scale invariance

    SciTech Connect (OSTI)

    Del Campo, Sergio; Herrera, Ramón [Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla 4059, Valparaíso (Chile); Guendelman, Eduardo I. [Physics Department, Ben Gurion University of the Negev, Beer Sheva 84105 (Israel); Labraña, Pedro, E-mail: sdelcamp@ucv.cl, E-mail: guendel@bgu.ac.il, E-mail: ramon.herrera@ucv.cl, E-mail: plabrana@ubiobio.cl [Departamento de Física, Universidad del Bío Bío, Avenida Collao 1202, Casilla 5-C, Concepción (Chile)

    2010-06-01T23:59:59.000Z

    We consider a scale invariant model which includes a R{sup 2} term in action and show that a stable ''emerging universe'' scenario is possible. The model belongs to the general class of theories, where an integration measure independent of the metric is introduced. To implement scale invariance (S.I.), a dilaton field is introduced. The integration of the equations of motion associated with the new measure gives rise to the spontaneous symmetry breaking (S.S.B) of S.I. After S.S.B. of S.I. in the model with the R{sup 2} term (and first order formalism applied), it is found that a non trivial potential for the dilaton is generated. The dynamics of the scalar field becomes non linear and these non linearities are instrumental in the stability of some of the emerging universe solutions, which exists for a parameter range of the theory.

  8. The Expression of Determination: Similarities Between Anger and Approach-related Positive Affect

    E-Print Network [OSTI]

    Harmon-Jones, Cindy

    2011-02-22T23:59:59.000Z

    ; Lang, 1995; Lang, Bradley, & Cuthbert, 1990, 1992, 1998; Larsen, McGraw, & Cacioppo, 2001). Based on this model, Watson and colleagues (1988) created the Positive and Negative Affect Schedule (PANAS, Watson & Clark, 1994). This scale has been widely... have also found that angry facial expressions are associated with approach motivation (Lewis et al., 1990; Lewis et al., 1992). Individual?s trait tendencies toward approach and withdrawal, as measured by Carver and White?s (1994) behavioral...

  9. Use of dual plane PIV to assess scale-by-scale energy budgets in wall turbulence

    E-Print Network [OSTI]

    Marusic, Ivan

    Use of dual plane PIV to assess scale-by-scale energy budgets in wall turbulence N Saikrishnan1-layer, the buffer region, the logarithmic region and the outer region. In the space of scales, turbulent energy is produced at the large scales and transferred to smaller scales, finally dissipating in the form of heat

  10. Chameleon gravity on cosmological scales

    E-Print Network [OSTI]

    H. Farajollahi; A. Salehi

    2012-06-25T23:59:59.000Z

    In conventional approach to the chameleon mechanism, by assuming a static and spherically symmetric solutions in which matter density and chameleon field are given by $\\rho=\\rho(r)$ and $\\phi=\\phi(r)$, it has been shown that mass of chameleon field is matter density-dependent. In regions of high matter density such as earth, chameleon field is massive, in solar system it is low and in cosmological scales it is very low. In this article we revisit the mechanism in cosmological scales by assuming a redshift dependence of the matter density and chameleon field, i.e. $\\rho=\\rho(z)$, $\\phi=\\phi(z)$. To support our analysis, we best fit the model parameters with the observational data. The result shows that in cosmological scales, the mass of chameleon field increases with the redshift, i.e. more massive in higher redshifts. We also find that in both cases of power-law and exponential potential function, the current universe acceleration can be explained by the low mass chameleon field. In comparison with the high redshift observational data, we also find that the model with power-law potential function is in better agreement with the observational data.

  11. Transition physics and scaling overview

    SciTech Connect (OSTI)

    Carlstrom, T.N.

    1995-12-01T23:59:59.000Z

    This paper presents an overview of recent experimental progress towards understanding H-mode transition physics and scaling. Terminology and techniques for studying H-mode are reviewed and discussed. The model of shear E x B flow stabilization of edge fluctuations at the L-H transition is gaining wide acceptance and is further supported by observations of edge rotation on a number of new devices. Observations of poloidal asymmetries of edge fluctuations and dephasing of density and potential fluctuations after the transition pose interesting challenges for understanding H-mode physics. Dedicated scans to determine the scaling of the power threshold have now been performed on many machines. A dear B{sub t} dependence is universally observed but dependence on the line averaged density is complicated. Other dependencies are also reported. Studies of the effect of neutrals and error fields on the power threshold are under investigation. The ITER threshold database has matured and offers guidance to the power threshold scaling issues relevant to next-step devices.

  12. Scale Setting Using the Extended Renormalization Group and the Principle of Maximal Conformality: the QCD Coupling at Four Loops

    SciTech Connect (OSTI)

    Brodsky, Stanley J.; /SLAC; Wu, Xing-Gang; /SLAC /Chongqing U.

    2012-02-16T23:59:59.000Z

    A key problem in making precise perturbative QCD predictions is to set the proper renormalization scale of the running coupling. The extended renormalization group equations, which express the invariance of physical observables under both the renormalization scale- and scheme-parameter transformations, provide a convenient way for estimating the scale- and scheme-dependence of the physical process. In this paper, we present a solution for the scale-equation of the extended renormalization group equations at the four-loop level. Using the principle of maximum conformality (PMC)/Brodsky-Lepage-Mackenzie (BLM) scale-setting method, all non-conformal {beta}{sub i} terms in the perturbative expansion series can be summed into the running coupling, and the resulting scale-fixed predictions are independent of the renormalization scheme. Different schemes lead to different effective PMC/BLM scales, but the final results are scheme independent. Conversely, from the requirement of scheme independence, one not only can obtain scheme-independent commensurate scale relations among different observables, but also determine the scale displacements among the PMC/BLM scales which are derived under different schemes. In principle, the PMC/BLM scales can be fixed order-by-order, and as a useful reference, we present a systematic and scheme-independent procedure for setting PMC/BLM scales up to NNLO. An explicit application for determining the scale setting of R{sub e{sup +}e{sup -}}(Q) up to four loops is presented. By using the world average {alpha}{sub s}{sup {ovr MS}}(MZ) = 0.1184 {+-} 0.0007, we obtain the asymptotic scale for the 't Hooft associated with the {ovr MS} scheme, {Lambda}{sub {ovr MS}}{sup 'tH} = 245{sub -10}{sup +9} MeV, and the asymptotic scale for the conventional {ovr MS} scheme, {Lambda}{sub {ovr MS}} = 213{sub -8}{sup +19} MeV.

  13. Preliminary Scaling Estimate for Select Small Scale Mixing Demonstration Tests

    SciTech Connect (OSTI)

    Wells, Beric E.; Fort, James A.; Gauglitz, Phillip A.; Rector, David R.; Schonewill, Philip P.

    2013-09-12T23:59:59.000Z

    The Hanford Site double-shell tank (DST) system provides the staging location for waste that will be transferred to the Hanford Tank Waste Treatment and Immobilization Plant (WTP). Specific WTP acceptance criteria for waste feed delivery describe the physical and chemical characteristics of the waste that must be met before the waste is transferred from the DSTs to the WTP. One of the more challenging requirements relates to the sampling and characterization of the undissolved solids (UDS) in a waste feed DST because the waste contains solid particles that settle and their concentration and relative proportion can change during the transfer of the waste in individual batches. A key uncertainty in the waste feed delivery system is the potential variation in UDS transferred in individual batches in comparison to an initial sample used for evaluating the acceptance criteria. To address this uncertainty, a number of small-scale mixing tests have been conducted as part of Washington River Protection Solutions’ Small Scale Mixing Demonstration (SSMD) project to determine the performance of the DST mixing and sampling systems.

  14. Scaling Dark Energy in a Five-Dimensional Bouncing Cosmological Model

    E-Print Network [OSTI]

    Lixin Xu; Hongya Liu

    2005-12-31T23:59:59.000Z

    We consider a 5-dimensional Ricci flat bouncing cosmological model in which the 4-dimensional induced matter contains two components at late times - the cold dark matter (CDM)+baryons and dark energy. We find that the arbitrary function $f(z)$ contained in the solution plays a similar role as the potential $V(\\phi)$ in quintessence and phantom dark energy models. To resolve the coincidence problem, it is generally believed that there is a scaling stage in the evolution of the universe. We analyze the condition for this stage and show that a hyperbolic form of the function $f(z)$ can work well in this property. We find that during the scaling stage (before $z\\approx 2$), the dark energy behaves like (but not identical to) a cold dark matter with an adiabatic sound speed $c_{s}^{2}\\approx 0$ and $p_{x}\\approx 0$. After $z\\approx 2$, the pressure of dark energy becomes negative. The transition from deceleration to acceleration happens at $z_{T}\\approx 0.8$ which, as well as other predictions of the $5D$ model, agree with current observations.

  15. Distilling entanglement from arbitrary resources

    E-Print Network [OSTI]

    Francesco Buscemi; Nilanjana Datta

    2010-10-15T23:59:59.000Z

    We obtain the general formula for the optimal rate at which singlets can be distilled from any given noisy and arbitrarily correlated entanglement resource, by means of local operations and classical communication (LOCC). Our formula, obtained by employing the quantum information spectrum method, reduces to that derived by Devetak and Winter, in the special case of an i.i.d. resource. The proofs rely on a one-shot version of the so-called "hashing bound," which in turn provides bounds on the one-shot distillable entanglement under general LOCC.

  16. arbitrary p role in the

    E-Print Network [OSTI]

    Boll, Susanne

    . It independe Finally model-bas confidence sensitivity zum Vo F ssons fro ents of the recalibration n of tempora in the wn that the s models, and ent an R pac ns. The pac for estimate ted functions derforsch "D E I N classic ex (SJ). In both report (i) wh multaneously esponse cate ng piecewise tive simultan

  17. Expression of eukaryotic polypeptides in chloroplasts

    DOE Patents [OSTI]

    Mayfield, Stephen P

    2013-06-04T23:59:59.000Z

    The present invention relates to a gene expression system in eukaryotic and prokaryotic cells, preferably plant cells and intact plants. In particular, the invention relates to an expression system having a RB47 binding site upstream of a translation initiation site for regulation of translation mediated by binding of RB47 protein, a member of the poly(A) binding protein family. Regulation is further effected by RB60, a protein disulfide isomerase. The expression system is capable of functioning in the nuclear/cytoplasm of cells and in the chloroplast of plants. Translation regulation of a desired molecule is enhanced approximately 100 fold over that obtained without RB47 binding site activation.

  18. Scaled 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to:RoscommonSBYSaltonSprings,Sardinia,SawasdeeSayreville, NewScaled

  19. Scale Models & Wind Turbines

    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 DataDepartment of Energy Your Density Isn'tOrigin ofEnergy atLLC - FE DKT. 10-160-LNG -EnergyProcess HeatingatSawDepartment ofScale

  20. Small-Scale Energy Loan Program

    Broader source: Energy.gov [DOE]

    The Oregon Small-Scale Energy Loan Program (SELP) - created in 1981 after voters approved a constitutional amendment authorizing the sale of bonds to finance small-scale, local energy projects - is...

  1. Proton Decay and the Planck Scale

    E-Print Network [OSTI]

    Larson, Daniel T.

    2009-01-01T23:59:59.000Z

    LBNL- 56556 PROTON DECAY AND THE PLANCK SCALE DANIEL T.ph/0410035v1 2 Oct 2004 PROTON DECAY AND THE PLANCK SCALE ?without grand uni?cation, proton decay can be a powerful

  2. Scale in object and process ontologies 

    E-Print Network [OSTI]

    Reitsma, Femke; Bittner, Thomas

    2003-01-01T23:59:59.000Z

    Scale is of great importance to the analysis of real world phenomena, be they enduring objects or perduring processes. This paper presents a new perspective on the concept of scale by considering it within two complementary ...

  3. Bench-Scale Fermentation Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01T23:59:59.000Z

    This fact sheet provides information about Bench-Scale Fermentation Laboratory capabilities and applications at NREL's National Bioenergy Center.

  4. Industrial Scale Demonstration of Smart Manufacturing Achieving...

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

    Scale Demonstration of Smart Manufacturing Achieving Transformational Energy Productivity Gains Development of an Open Architecture, Widely Applicable Smart Manufacturing...

  5. Range Fuels Commercial-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    The Range Fuels commercial-scale biorefinery will use a variety of feedstocks to create cellulosic ethanol, methanol, and power.

  6. Nuclear Reactions & Scaling Arguments 11 October 2011

    E-Print Network [OSTI]

    Militzer, Burkhard

    Nuclear Reactions & Scaling Arguments 11 October 2011 Goals · Review nuclear reaction rates · Practice using scaling arguments Nuclear Reactions 1. Consider the simple reaction A k1 ---- B k2 ---- C = 3. #12;nuclear reactions & scaling arguments 2 3. Frequently, we approximate nuclear reaction rates

  7. Nuclear Reactions & Scaling Arguments 11 October 2011

    E-Print Network [OSTI]

    Militzer, Burkhard

    Nuclear Reactions & Scaling Arguments 11 October 2011 Goals · Review nuclear reaction rates · Practice using scaling arguments Nuclear Reactions 1. Consider the simple reaction A k1 ---- B k2 ---- C rate for something like p + p D scales like n2 p. Think in microscopic terms. #12;nuclear reactions

  8. Web Scale Taxonomy Cleansing Taesung Lee ,

    E-Print Network [OSTI]

    Hwang, Seung-won

    Web Scale Taxonomy Cleansing Taesung Lee , Zhongyuan Wang Haixun Wang Seung-won Hwang POSTECH.wang,haixunw}@microsoft.com ABSTRACT Large ontologies and taxonomies are automatically harvested from web-scale data. These taxonomies- scale taxonomies becomes a great challenge. A natural way to en- rich a taxonomy is to map the taxonomy

  9. 6, 1092910958, 2006 Regional scale CO2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 6, 10929­10958, 2006 Regional scale CO2 flux estimation using radon A. I. Hirsch Title Page Chemistry and Physics Discussions On using radon-222 and CO2 to calculate regional-scale CO2 fluxes A. I (Adam.Hirsch@noaa.gov) 10929 #12;ACPD 6, 10929­10958, 2006 Regional scale CO2 flux estimation using

  10. A parallel scaled conjugate-gradient

    E-Print Network [OSTI]

    Aykanat, Cevdet

    . The scaled conjugate- gradient method is a powerful technique for solving large sparse linear systems for form-factor computation. Key words: Gathering radiosity -- Scaled conjugate-gradient method -- Parallel, the Gauss--Jacobi (GJ) method is used in the solution phase. The scaled conjugate-gradient (SCG) method

  11. Large-Scale Renewable Energy Guide Webinar

    Broader source: Energy.gov [DOE]

    Webinar introduces the “Large Scale Renewable Energy Guide." The webinar will provide an overview of this important FEMP guide, which describes FEMP's approach to large-scale renewable energy projects and provides guidance to Federal agencies and the private sector on how to develop a common process for large-scale renewable projects.

  12. Conundrum of the Large Scale Streaming

    E-Print Network [OSTI]

    T. M. Malm

    1999-09-12T23:59:59.000Z

    The etiology of the large scale peculiar velocity (large scale streaming motion) of clusters would increasingly seem more tenuous, within the context of the gravitational instability hypothesis. Are there any alternative testable models possibly accounting for such large scale streaming of clusters?

  13. Engineering scale electrostatic enclosure demonstration

    SciTech Connect (OSTI)

    Meyer, L.C.

    1993-09-01T23:59:59.000Z

    This report presents results from an engineering scale electrostatic enclosure demonstration test. The electrostatic enclosure is part of an overall in-depth contamination control strategy for transuranic (TRU) waste recovery operations. TRU contaminants include small particles of plutonium compounds associated with defense-related waste recovery operations. Demonstration test items consisted of an outer Perma-con enclosure, an inner tent enclosure, and a ventilation system test section for testing electrostatic curtain devices. Three interchangeable test fixtures that could remove plutonium from the contaminated dust were tested in the test section. These were an electret filter, a CRT as an electrostatic field source, and an electrically charged parallel plate separator. Enclosure materials tested included polyethylene, anti-static construction fabric, and stainless steel. The soil size distribution was determined using an eight stage cascade impactor. Photographs of particles containing plutonium were obtained with a scanning electron microscope (SEM). The SEM also provided a second method of getting the size distribution. The amount of plutonium removed from the aerosol by the electrostatic devices was determined by radiochemistry from input and output aerosol samplers. The inner and outer enclosures performed adequately for plutonium handling operations and could be used for full scale operations.

  14. Small Business Express Program (EXP) (Connecticut)

    Broader source: Energy.gov [DOE]

    The Small Business Express Program (EXP) provides loans and grants to small businesses (not more than 100 employees) to spur job creation and growth. The Program provides access to capital through...

  15. Xcel Energy- Express Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    The Express Energy Efficiency Program provides free installation of energy-saving products. This program travels around Wisconsin, community-by-community, to see if they are installing in your...

  16. An expectation model of referring expressions

    E-Print Network [OSTI]

    Kræmer, John, Ph. D. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    This thesis introduces EMRE, an expectation-based model of referring expressions. EMRE is proposed as a model of non-syntactic dependencies - in particular, discourse-level semantic dependencies that bridge sentence gaps. ...

  17. Dangerous Bodies: Freak Shows, Expression, and Exploitation

    E-Print Network [OSTI]

    Fordham, Brigham A.

    2007-01-01T23:59:59.000Z

    Dangerous Bodies: Freak Shows, Expression, and ExploitationR.I. GEN. LAWS § 11-9-1. DANGEROUS BODIES Rhode Island does161 Id. Id. 165 id. 166 Id. DANGEROUS BODIES This argument

  18. Generating and interpreting referring expressions in context

    E-Print Network [OSTI]

    Smith, Dustin Arthur

    2013-01-01T23:59:59.000Z

    Referring expressions with vague and ambiguous modifiers, such as "a quick visit" and "the big meeting," are difficult for computers to interpret because their meanings are defined in part by context. For the hearer to ...

  19. Identifying expression fingerprints using linguistic information

    E-Print Network [OSTI]

    Uzuner, Ozlem, 1975-

    2005-01-01T23:59:59.000Z

    This thesis presents a technology to complement taxation-based policy proposals aimed at addressing the digital copyright problem. The approach presented facilitates identification of intellectual property using expression ...

  20. Expressive Autonomous Cinematography for Interactive Virtual Environments

    E-Print Network [OSTI]

    Tomlinson, Bill

    Expressive Autonomous Cinematography for Interactive Virtual Environments Bill Tomlinson Synthetic an automatic cinematography system for interactive virtual environments. This system controls a virtual camera this cinematography system with an ethologically-inspired structure of sensors, emotions, motivations, and action

  1. Neurokinin Receptor Expression in the Lymphatic System 

    E-Print Network [OSTI]

    Khade, Parth

    2011-01-11T23:59:59.000Z

    Neurokinin Receptor Expression in the Lymphatic System. (April 2009) Parth Vijay Khade. Department of Biomedical Engineering, Texas A&M University. Research Advisor: Dr. Dave C. Zawieja, Department of Systems Biology and Translational Medicine...

  2. Control of gene expression by cell size

    E-Print Network [OSTI]

    Wu, Chia-Yung

    2010-01-01T23:59:59.000Z

    Polyploidy, increased copy number of whole chromosome sets in the genome, is a common cellular state in evolution, development and disease. Polyploidy enlarges cell size and alters gene expression, producing novel phenotypes ...

  3. Goethite Bench-scale and Large-scale Preparation Tests

    SciTech Connect (OSTI)

    Josephson, Gary B.; Westsik, Joseph H.

    2011-10-23T23:59:59.000Z

    The Hanford Waste Treatment and Immobilization Plant (WTP) is the keystone for cleanup of high-level radioactive waste from our nation's nuclear defense program. The WTP will process high-level waste from the Hanford tanks and produce immobilized high-level waste glass for disposal at a national repository, low activity waste (LAW) glass, and liquid effluent from the vitrification off-gas scrubbers. The liquid effluent will be stabilized into a secondary waste form (e.g. grout-like material) and disposed on the Hanford site in the Integrated Disposal Facility (IDF) along with the low-activity waste glass. The major long-term environmental impact at Hanford results from technetium that volatilizes from the WTP melters and finally resides in the secondary waste. Laboratory studies have indicated that pertechnetate ({sup 99}TcO{sub 4}{sup -}) can be reduced and captured into a solid solution of {alpha}-FeOOH, goethite (Um 2010). Goethite is a stable mineral and can significantly retard the release of technetium to the environment from the IDF. The laboratory studies were conducted using reaction times of many days, which is typical of environmental subsurface reactions that were the genesis of this new process. This study was the first step in considering adaptation of the slow laboratory steps to a larger-scale and faster process that could be conducted either within the WTP or within the effluent treatment facility (ETF). Two levels of scale-up tests were conducted (25x and 400x). The largest scale-up produced slurries of Fe-rich precipitates that contained rhenium as a nonradioactive surrogate for {sup 99}Tc. The slurries were used in melter tests at Vitreous State Laboratory (VSL) to determine whether captured rhenium was less volatile in the vitrification process than rhenium in an unmodified feed. A critical step in the technetium immobilization process is to chemically reduce Tc(VII) in the pertechnetate (TcO{sub 4}{sup -}) to Tc(Iv)by reaction with the ferrous ion, Fe{sup 2+}-Fe{sup 2+} is oxidized to Fe{sup 3+} - in the presence of goethite seed particles. Rhenium does not mimic that process; it is not a strong enough reducing agent to duplicate the TcO{sub 4}{sup -}/Fe{sup 2+} redox reactions. Laboratory tests conducted in parallel with these scaled tests identified modifications to the liquid chemistry necessary to reduce ReO{sub 4}{sup -} and capture rhenium in the solids at levels similar to those achieved by Um (2010) for inclusion of Tc into goethite. By implementing these changes, Re was incorporated into Fe-rich solids for testing at VSL. The changes also changed the phase of iron that was in the slurry product: rather than forming goethite ({alpha}-FeOOH), the process produced magnetite (Fe{sub 3}O{sub 4}). Magnetite was considered by Pacific Northwest National Laboratory (PNNL) and VSL to probably be a better product to improve Re retention in the melter because it decomposes at a higher temperature than goethite (1538 C vs. 136 C). The feasibility tests at VSL were conducted using Re-rich magnetite. The tests did not indicate an improved retention of Re in the glass during vitrification, but they did indicate an improved melting rate (+60%), which could have significant impact on HLW processing. It is still to be shown whether the Re is a solid solution in the magnetite as {sup 99}Tc was determined to be in goethite.

  4. Geometrical expression for the angular resolution of a network of gravitational-wave detectors

    SciTech Connect (OSTI)

    Wen Linqing; Chen Yanbei [International Center for Radio Astronomy Research, School of Physics, University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia 6009 (Australia); Division of Physics, Mathematics, and Astronomy, Caltech, Pasadena, California 91125 (United States)

    2010-04-15T23:59:59.000Z

    We report for the first time general geometrical expressions for the angular resolution of an arbitrary network of interferometric gravitational-wave (GW) detectors when the arrival time of a GW is unknown. We show explicitly elements that decide the angular resolution of a GW detector network. In particular, we show the dependence of the angular resolution on areas formed by projections of pairs of detectors and how they are weighted by sensitivities of individual detectors. Numerical simulations are used to demonstrate the capabilities of the current GW detector network. We confirm that the angular resolution is poor along the plane formed by current LIGO-Virgo detectors. A factor of a few to more than ten fold improvement of the angular resolution can be achieved if the proposed new GW detectors LCGT or AIGO are added to the network. We also discuss the implications of our results for the design of a GW detector network, optimal localization methods for a given network, and electromagnetic follow-up observations.

  5. Berry's Phases for Arbitrary Spins Non-Linearly Coupled to External Fields. Application to the Entanglement of N > 2 Non-Correlated One-Half Spins

    E-Print Network [OSTI]

    Marie-Anne Bouchiat; Claude Bouchiat

    2010-11-05T23:59:59.000Z

    We derive the general formula giving the Berry phase for an arbitrary spin, having both magnetic-dipole and electric-quadrupole couplings with external time-dependent fields. We assume that the effective E and B fields remain orthogonal during the quantum cycles. This mild restriction has many advantages. It provides simple symmetries leading to selection rules and the Hamiltonian-parameter and density-matrix spaces coincide for S=1. This implies the identity of the Berry and Aharonov-Anandan phases, which is lost for S>1. We have found that new features of Berry phases emerge for integer spins>2. We provide explicit numerical results of Berry phases for S=2,3,4. We give a precise analysis of the non-adiabatic corrections. The accuracy for satisfying adiabaticity is greatly improved if one chooses for the time derivatives of the parameters a time-dependence having a Blackman pulse shape. This has the effect of taming the non-adiabatic oscillation corrections which could be generated by a linear ramping. For realistic experimental conditions, the non-adibatic corrections can be kept reversal of the angular velocity can be cancelled exactly if the quadrupole to dipole coupling ratio takes a "magic" value. The even ones are cancelled by subtraction of the phases relative to opposite velocities. As a possible application of the results of this paper we suggest a route to holonomic entanglement of N non-correlated 1/2-spins by performing adiabatic cycles governed by a Hamiltonian which is a non-linear function of the total spin operator S defined as the sum of the N spin operators. The case N=4 and Sz=1 is treated explicitly and maximum entanglement is achieved.

  6. Building Scale vs. Community Scale Net-Zero Energy Performance

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Fernandez, Nicholas; Brambley, Michael R.; Reddy, T. A.

    2010-06-30T23:59:59.000Z

    Many government and industry organizations are focusing building energy-efficiency goals around producing individual net-zero buildings (nZEBs), using photovoltaic (PV) technology to provide on-site renewable energy after substantially improving the energy efficiency of the buildings themselves. Seeking net-zero energy (NZE) at the community scale instead introduces the possibility of using a wider range of renewable energy technologies, such as solar-thermal electricity generation, solar-assisted heating/cooling systems, and wind energy, economically. This paper reports results of a study comparing NZE communities to communities consisting of individual nZEBs. Five scenarios are examined: 1) base case – a community of nZEBs with roof mounted PV systems; 2) NZE communities served by wind turbines on leased land; 3) NZE communities served by wind turbines on owned land; 4) communities served by solar-thermal electric generation; and 5) communities served by photovoltaic farms. All buildings are assumed to be highly efficient, e.g., 70% more efficient than current practice. The scenarios are analyzed for two climate locations (Chicago and Phoenix), and the levelized costs of electricity for the scenarios are compared. The results show that even for the climate in the U.S. most favorable to PV (Phoenix), more cost-effective approaches are available to achieving NZE than the conventional building-level approach (rooftop PV with aggressive building efficiency improvements). The paper shows that by expanding the measurement boundary for NZE, a community can take advantage of economies of scale, achieving improved economics while reaching the same overall energy-performance objective.

  7. Regular expression matching and operational Hayo Thielecke

    E-Print Network [OSTI]

    Thielecke, Hayo

    / 24 #12;The EKW machine e ; k ; w e ; k ; w e1 | e2 ; k ; w e1 ; k ; w e1 | e2 ; k ; w e2 ; k ; w e1 e2 ; k ; w e1 ; e2 :: k ; w e ; k ; w e ; e :: k ; w e ; k ; w ; k ; w a ; k ; a w ; k ; w ; e :: k ; w e ; k ; w 8 / 24 #12;Regular expressions as trees/graphs in memory Expression as trees

  8. Does Standard Cosmology Express Cosmological Principle Faithfully?

    E-Print Network [OSTI]

    Ding-fang Zeng; Hai-jun Zhao

    2005-06-30T23:59:59.000Z

    In 1+1 dimensional case, Einstein equation cannot give us any information on the evolution of the universe because the Einstein tensor of the system is identically zero. We study such a 1+1 dimensional cosmology and find the metric of it according to cosmological principle and special relativity, but the results contradict the usual expression of cosmological principle of standard cosmology. So we doubt in 1+3 dimensional case, cosmological principle is expressed faithfully by standard cosmology.

  9. Low Rates of Expression Profile Divergence in Highly Expressed Genes and Tissue-Specific Genes During Mammalian Evolution

    E-Print Network [OSTI]

    Zhang, Jianzhi

    Low Rates of Expression Profile Divergence in Highly Expressed Genes and Tissue-Specific Genes specificity influence the divergence of expression profiles between orthologous genes. Here we address expression profile change during evolution is negatively correlated with the level of gene expression

  10. Asymptotic Decorrelation of Between-Scale Wavelet Coefficients Peter F. Craigmile1 and Donald B. Percival2

    E-Print Network [OSTI]

    Percival, Don

    with a spectral density function (SDF) that is the product of the SDF for a (not necessarily stationary) FD process multiplied by any bounded function that can serve as an SDF on its own. We demonstrate). In particular he obtained expressions for the spectral density function (SDF) of within-scale wavelet

  11. The Eval that Men Do A Large-scale Study of the Use of Eval in JavaScript Applications

    E-Print Network [OSTI]

    Vitek, Jan

    The Eval that Men Do A Large-scale Study of the Use of Eval in JavaScript Applications Gregor. Transforming text into executable code with a function such as Java- Script's eval endows programmers with the ability to extend applications, at any time, and in almost any way they choose. But, this expressive power

  12. DOMESTIC SERVICES FEDERAL EXPRESS UPS US POSTAL SERVICE OTHER

    E-Print Network [OSTI]

    Holliday, Vance T.

    SERVICES FEDERAL EXPRESS UPS US POSTAL SERVICE OTHER ___ First Overnight ___ Air ___ Regular Post _____________________________________ ___ Express Saver ___ Ground FEDERAL EXPRESS UPS US POSTAL SERVICE OTHER ___ Int. First ___ Air ___ Air Mail. Economy _____________________________________ Fill in complete mailing address. FedEx and UPS

  13. albumin gene expression: Topics by E-print Network

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

    biology, and multiple orthogonal gene switches are needed Zhao, Huimin 223 Metabolic load and heterologous gene expression CiteSeer Summary: The expression of a foreign...

  14. abnormal phenotypic expression: Topics by E-print Network

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

    D.R. and Linkenauger, S.A. (in press). Perception viewed as a phenotypic expression: Perception Viewed as a Phenotypic Expression Correspondence: Dennis Proffitt Department of...

  15. EIS-0447: Champlain Hudson Power Express Transmission Line Project...

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

    47: Champlain Hudson Power Express Transmission Line Project, New York EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York Summary This EIS evaluated the...

  16. aortic enos expression: Topics by E-print Network

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

    the rate of gene sequence evolution has been well studied, the rate of gene expression evolution is poorly understood. In particular, it is unclear whether the gene expression...

  17. Gene Expression Profiling of 3T3-L1 Adipocytes Expressing the Mitochondrial Uncoupling Protein 1 (UCP1) 

    E-Print Network [OSTI]

    Senocak, Fatih

    2006-07-11T23:59:59.000Z

    changes in energy metabolism in white adipocytes. Specifically, we used DNA microarrays to characterize the changes in white adipocyte gene expression upon UCP1 expression and determine the extent to which UCP1 expressing white adipocytes emulate brown...

  18. Renewable Energy: Utility-Scale Policies and Programs | Department...

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

    Policies & Programs Renewable Energy: Utility-Scale Policies and Programs Renewable Energy: Utility-Scale Policies and Programs Utility-scale renewable energy projects are...

  19. DLFM library tools for large scale dynamic applications.

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

    DLFM library tools for large scale dynamic applications DLFM library tools for large scale dynamic applications Large scale Python and other dynamic applications may spend huge...

  20. The in vitro characterization of heterologously expressed enzymes to inform in vivo biofuel production optimization

    E-Print Network [OSTI]

    Garcia, David Ernest

    2013-01-01T23:59:59.000Z

    The expression, purification, and kinetic characterizationThe expression, purification, and kinetic characterizationThe expression, purification, and kinetic characterization

  1. Reliable High Performance Peta- and Exa-Scale Computing

    SciTech Connect (OSTI)

    Bronevetsky, G

    2012-04-02T23:59:59.000Z

    As supercomputers become larger and more powerful, they are growing increasingly complex. This is reflected both in the exponentially increasing numbers of components in HPC systems (LLNL is currently installing the 1.6 million core Sequoia system) as well as the wide variety of software and hardware components that a typical system includes. At this scale it becomes infeasible to make each component sufficiently reliable to prevent regular faults somewhere in the system or to account for all possible cross-component interactions. The resulting faults and instability cause HPC applications to crash, perform sub-optimally or even produce erroneous results. As supercomputers continue to approach Exascale performance and full system reliability becomes prohibitively expensive, we will require novel techniques to bridge the gap between the lower reliability provided by hardware systems and users unchanging need for consistent performance and reliable results. Previous research on HPC system reliability has developed various techniques for tolerating and detecting various types of faults. However, these techniques have seen very limited real applicability because of our poor understanding of how real systems are affected by complex faults such as soft fault-induced bit flips or performance degradations. Prior work on such techniques has had very limited practical utility because it has generally focused on analyzing the behavior of entire software/hardware systems both during normal operation and in the face of faults. Because such behaviors are extremely complex, such studies have only produced coarse behavioral models of limited sets of software/hardware system stacks. Since this provides little insight into the many different system stacks and applications used in practice, this work has had little real-world impact. My project addresses this problem by developing a modular methodology to analyze the behavior of applications and systems during both normal and faulty operation. By synthesizing models of individual components into a whole-system behavior models my work is making it possible to automatically understand the behavior of arbitrary real-world systems to enable them to tolerate a wide range of system faults. My project is following a multi-pronged research strategy. Section II discusses my work on modeling the behavior of existing applications and systems. Section II.A discusses resilience in the face of soft faults and Section II.B looks at techniques to tolerate performance faults. Finally Section III presents an alternative approach that studies how a system should be designed from the ground up to make resilience natural and easy.

  2. EXPRESS 2008 Expressiveness in Concurrency 15th int. workshop Security Abstractions and Intruder Models

    E-Print Network [OSTI]

    Bugliesi, Michele

    along these lines [5], we investigate the expressive power of a core set of security and network to secure communications by hiding them on private channels. A more recent line of research [2 of our approach by investigating the expressive power of our security and network abstractions

  3. Nonspecific transcription factor binding reduces variability in transcription factor and target protein expression

    E-Print Network [OSTI]

    Mohammad Soltani; Pavol Bokes; Zachary Fox; Abhyudai Singh

    2015-04-14T23:59:59.000Z

    Transcription factors (TFs) interact with a multitude of binding sites on DNA and partner proteins inside cells. We investigate how nonspecific binding/unbinding to such decoy binding sites affects the magnitude and time-scale of random fluctuations in TF copy numbers arising from stochastic gene expression. A stochastic model of TF gene expression, together with decoy site interactions is formulated. Distributions for the total (bound and unbound) and free (unbound) TF levels are derived by analytically solving the chemical master equation under physiologically relevant assumptions. Our results show that increasing the number of decoy binding sides considerably reduces stochasticity in free TF copy numbers. The TF autocorrelation function reveals that decoy sites can either enhance or shorten the time-scale of TF fluctuations depending on model parameters. To understand how noise in TF abundances propagates downstream, a TF target gene is included in the model. Intriguingly, we find that noise in the expression of the target gene decreases with increasing decoy sites for linear TF-target protein dose-responses, even in regimes where decoy sites enhance TF autocorrelation times. Moreover, counterintuitive noise transmissions arise for nonlinear dose-responses. In summary, our study highlights the critical role of molecular sequestration by decoy binding sites in regulating the stochastic dynamics of TFs and target proteins at the single-cell level.

  4. Enumeration of spanning trees in a pseudofractal scale-free web

    E-Print Network [OSTI]

    Zhongzhi Zhang; Hongxiao Liu; Bin Wu; Shuigeng Zhou

    2010-08-02T23:59:59.000Z

    Spanning trees are an important quantity characterizing the reliability of a network, however, explicitly determining the number of spanning trees in networks is a theoretical challenge. In this paper, we study the number of spanning trees in a small-world scale-free network and obtain the exact expressions. We find that the entropy of spanning trees in the studied network is less than 1, which is in sharp contrast to previous result for the regular lattice with the same average degree, the entropy of which is higher than 1. Thus, the number of spanning trees in the scale-free network is much less than that of the corresponding regular lattice. We present that this difference lies in disparate structure of the two networks. Since scale-free networks are more robust than regular networks under random attack, our result can lead to the counterintuitive conclusion that a network with more spanning trees may be relatively unreliable.

  5. Theory and simulations of the scaling of magnetic reconnection with symmetric shear flow

    SciTech Connect (OSTI)

    Cassak, P. A. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)

    2011-07-15T23:59:59.000Z

    The scaling of magnetic reconnection in the presence of an oppositely directed sub-Alfvenic shear flow parallel to the reconnecting magnetic field is studied using analytical scaling arguments and two-dimensional two-fluid numerical simulations of collisionless (Hall) reconnection. Previous studies noted that the reconnection rate falls and the current sheet tilts with increasing flow speed, but no quantitative theory was presented. This study presents a physical model of the effect of shear flow on reconnection, resulting in expressions for the scaling of properties such as the reconnection rate, outflow speed, and thickness and length of the dissipation region, which are verified numerically. Differences between Hall and Sweet-Parker reconnection are pointed out. The tilting of the current sheet is explained physically and a quantitative prediction is presented and verified.

  6. Scaling Rules for Pre-Injector Design

    SciTech Connect (OSTI)

    Tom Schwarz; Dan Amidei

    2003-07-13T23:59:59.000Z

    Proposed designs of the prebunching system of the NLC and TESLA are based on the assumption that scaling the SLC design to NLC/TESLA requirements should provide the desired performance. A simple equation is developed to suggest a scaling rule in terms of bunch charge and duration. Detailed simulations of prebunching systems scaled from a single design have been run to investigate these issues.

  7. Halanay type inequalities on time scales

    E-Print Network [OSTI]

    Ad\\ivar, Murat

    2011-01-01T23:59:59.000Z

    This paper aims to introduce Halanay type inequalities on time scales. By means of these inequalities we derive new global stability conditions for nonlinear dynamic equations on time scales. Giving several examples we show that beside generalization and extension to q-difference case, our results also provide improvements for the existing theory regarding differential and difference inequalites, which are the most important particular cases of dynamic inequalities on time scales.

  8. How to calibrate the jet energy scale?

    SciTech Connect (OSTI)

    Hatakeyama, K.; /Rockefeller U.

    2006-01-01T23:59:59.000Z

    Top quarks dominantly decay into b-quark jets and W bosons, and the W bosons often decay into jets, thus the precise determination of the jet energy scale is crucial in measurements of many top quark properties. I present the strategies used by the CDF and D0 collaborations to determine the jet energy scale. The various cross checks performed to verify the determined jet energy scale and evaluate its systematic uncertainty are also discussed.

  9. Scaling the practical education experience Joel Sommers

    E-Print Network [OSTI]

    Haddadi, Hamed

    Scaling the practical education experience Joel Sommers Colgate University jsommers outline a successful This work was done in part while Joel Sommers was visiting the University

  10. Small-Scale Renewable Energy Incentive Program

    Broader source: Energy.gov [DOE]

    Vermont's Small Scale Renewable Energy Incentive Program (SSREIP), initiated in June 2003, provides funding for new solar water heating, solar electric (photovoltaic), modern wood pellet heating,...

  11. Extreme Scale Computing, Co-design

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

    at Extreme Scale (ACES) partnership to design and develop the supercomputer Cielo (Spanish for "sky"), which was built by Cray Inc. Cielo can perform more than one quadrillion...

  12. Extreme Scale Computing, Co-Design

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

    "Analyzing the evolution of large scale structures in the universe with velocity based methods," IEEE Pacific Visualization Symposium, 49-56 (2012). Christopher M. Brislawn,...

  13. Commercial-Scale Renewable-Energy Grants

    Broader source: Energy.gov [DOE]

    The Rhode Island Commerce Corporation (Commerce RI) seeks to fund commercial scale renewable energy projects to generate electricity for onsite consumption. Commerce RI provides incentives for...

  14. Sandia National Laboratories: utility-scale power

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

    utility-scale power Sandia Has Signed a Memorandum of Understanding with Case Western Reserve University On January 28, 2014, in Computational Modeling & Simulation, Energy, Energy...

  15. Perceptual Smoothness of Tempo in Expressively Performed Simon Dixon

    E-Print Network [OSTI]

    Dixon, Simon

    a wide range of expressive timing deviations (Large & Kolen, 1994; Goto & Muraoka, 1995; Dixon, 2001a

  16. Investigating the Correspondence Between Transcriptomic and Proteomic Expression Profiles Using Coupled Cluster Models.

    SciTech Connect (OSTI)

    Rogers, Simon; Girolami, Mark; Kolch, Walter; Waters, Katrina M.; Liu, Tao; Thrall, Brian D.; Wiley, H. S.

    2008-12-01T23:59:59.000Z

    Modern transcriptomics and proteomics enable us to survey the expression of RNAs and proteins at large scales. While these data are usually generated and analysed separately, there is an increasing interest in comparing and co-analysing transcriptome and proteome expression data. A major open question is whether transcriptome and proteome expression is linked and how it is coordinated. Results: Here we have developed a probabilistic clustering model that permits analysis of the links between transcriptomic and proteomic profiles in a sensible and flexible manner. Our coupled mixture model defines a prior probability distribution over the component to which a protein profile should be assigned conditioned on which component the associated mRNA profile belongs to. By providing probabilistic assignments this approach sits between the two extremes of concatenating the data on the assumption that mRNA and protein clusters would have a one-to-one relationship, and independent clustering where the mRNA profile provides no information on the protein profile and vice-versa. We apply this approach to a large dataset of quantitative transcriptomic and proteomic expression data obtained from a human breast epithelial cell line (HMEC) stimulated by epidermal growth factor (EGF) over a series of timepoints corresponding to one cell cycle. The results reveal a complex relationship between transcriptome and proteome with most mRNA clusters linked to at least two protein clusters, and vice versa. A more detailed analysis incorporating information on gene function from the gene ontology database shows that a high correlation of mRNA and protein expression is limited to the components of some molecular machines, such as the ribosome, cell adhesion complexes and the TCP-1 chaperonin involved in protein folding. Conclusions: The dynamic regulation of the transcriptome and proteome in mammalian cells in response to an acute mitogenic stimulus appears largely independent with very little correspondence between mRNA and protein expression. The exceptions involve a few selected multi-protein complexes that require the stoichiometric expression of components for correct function. This finding has wide ramifications regarding the understanding of gene and protein expression including its control and evolution. It also shows that transcriptomic and proteomic expression analysis are complementary and non-redundant.

  17. Gene Expression in the Stallion Testes

    E-Print Network [OSTI]

    Laughlin, Andy M.

    2011-08-08T23:59:59.000Z

    genes were differentially expressed (122 in fertile tissue, 111 in subfertile tissue). Of these, phosphodiesterase 3B (PDE3B), steroidogenic acute regulatory (StAR) protein, and outer dense fiber of sperm tails 2 (ODF2) mRNAs, were localized...

  18. 6, 43254340, 2006 Scaling in ozone and

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 6, 4325­4340, 2006 Scaling in ozone and temperature C. Varotsos and D. Kirk-Davidoff Title Chemistry and Physics Discussions Long-memory processes in global ozone and temperature variations C #12;ACPD 6, 4325­4340, 2006 Scaling in ozone and temperature C. Varotsos and D. Kirk-Davidoff Title

  19. Scale invariance, unimodular gravity and dark energy

    E-Print Network [OSTI]

    Mikhail Shaposhnikov; Daniel Zenhausern

    2008-12-16T23:59:59.000Z

    We demonstrate that the combination of the ideas of unimodular gravity, scale invariance, and the existence of an exactly massless dilaton leads to the evolution of the universe supported by present observations: inflation in the past, followed by the radiation and matter dominated stages and accelerated expansion at present. All mass scales in this type of theories come from one and the same source.

  20. Dynamic method to measure calcium carbonate scaling

    SciTech Connect (OSTI)

    Zidovec, D. [Ashland Chemical, Boonton, NJ (United States)

    1999-11-01T23:59:59.000Z

    A method to measure scaling rate and the effect of scale control agents are discussed. It is based on calcium carbonate growth under controlled conditions in a capillary stainless steel column. The efficacy of blended compositions can be predicted when the response of individual components is known.

  1. OVERVIEW OF SCALE 6.2

    SciTech Connect (OSTI)

    Rearden, Bradley T [ORNL] [ORNL; Dunn, Michael E [ORNL] [ORNL; Wiarda, Dorothea [ORNL] [ORNL; Celik, Cihangir [ORNL] [ORNL; Bekar, Kursat B [ORNL] [ORNL; Williams, Mark L [ORNL] [ORNL; Peplow, Douglas E. [ORNL] [ORNL; Perfetti, Christopher M [ORNL] [ORNL; Gauld, Ian C [ORNL] [ORNL; Wieselquist, William A [ORNL] [ORNL; Lefebvre, Jordan P [ORNL] [ORNL; Lefebvre, Robert A [ORNL] [ORNL; Havluj, Frantisek [Nuclear Research Institute, Rez, Czech Republic] [Nuclear Research Institute, Rez, Czech Republic; Skutnik, Steven [The University of Tennessee] [The University of Tennessee; Dugan, Kevin [Texas A& M University] [Texas A& M University

    2013-01-01T23:59:59.000Z

    SCALE is an industry-leading suite of tools for nuclear systems modeling and simulation that provides comprehensive, verified and validated, user-friendly capabilities for criticality safety, reactor physics, radiation shielding, and sensitivity and uncertainty analysis. For more than 30 years, regulators, licensees, and research institutions around the world have used SCALE for nuclear safety analysis and design. SCALE provides a plug-and-play framework that includes three deterministic and three Monte Carlo radiation transport solvers that are selected based on the desired solution. SCALE includes the latest nuclear data libraries for continuous-energy and multigroup radiation transport as well as activation, depletion, and decay calculations. SCALE s graphical user interfaces assist with accurate system modeling, visualization, and convenient access to desired results. SCALE 6.2 provides several new capabilities and significant improvements in many existing features, especially with expanded CE Monte Carlo capabilities for criticality safety, shielding, depletion, and sensitivity and uncertainty analysis. A brief overview of SCALE capabilities is provided with emphasis on new features for SCALE 6.2.

  2. Jet Energy Scale March 31, 2009

    E-Print Network [OSTI]

    Jet Energy Scale March 31, 2009 #12;Jet energy vs parton energy Eta-dependent corrections: even scale: conversion from calo measurement to underlying jet Underlying event and out-of-cone corrections region, near-100% efficiency ·Excellent momentum measurement #12;Jet clustering · Jets are formed

  3. Scale evolution of double parton correlations

    E-Print Network [OSTI]

    Tomas Kasemets

    2014-11-17T23:59:59.000Z

    We review the effect of scale evolution on a number of different correlations in double parton scattering (DPS). The strength of the correlations generally decreases with the scale but at a rate which greatly varies between different types. Through studies of the evolution, an understanding of which correlations can be of experimental relevance in different processes and kinematical regions is obtained.

  4. Microfluidic Large-Scale Integration: The Evolution

    E-Print Network [OSTI]

    Quake, Stephen R.

    Microfluidic Large-Scale Integration: The Evolution of Design Rules for Biological Automation, polydimethylsiloxane Abstract Microfluidic large-scale integration (mLSI) refers to the develop- ment of microfluidic, are discussed. Several microfluidic components used as building blocks to create effective, complex, and highly

  5. A generalized 2D pencil beam scaling algorithm for proton dose calculation in heterogeneous slab geometries

    SciTech Connect (OSTI)

    Westerly, David C. [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado 80045 (United States); Mo Xiaohu; DeLuca, Paul M. Jr. [Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53705 (United States); Tome, Wolfgang A. [Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53705 and Institute of Onco-Physics, Albert Einstein College of Medicine and Division of Medical Physics, Department of Radiation Oncology, Montefiore Medical Center, Bronx, New York 10461 (United States); Mackie, Thomas R. [Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53705 and Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53792 (United States)

    2013-06-15T23:59:59.000Z

    Purpose: Pencil beam algorithms are commonly used for proton therapy dose calculations. Szymanowski and Oelfke ['Two-dimensional pencil beam scaling: An improved proton dose algorithm for heterogeneous media,' Phys. Med. Biol. 47, 3313-3330 (2002)] developed a two-dimensional (2D) scaling algorithm which accurately models the radial pencil beam width as a function of depth in heterogeneous slab geometries using a scaled expression for the radial kernel width in water as a function of depth and kinetic energy. However, an assumption made in the derivation of the technique limits its range of validity to cases where the input expression for the radial kernel width in water is derived from a local scattering power model. The goal of this work is to derive a generalized form of 2D pencil beam scaling that is independent of the scattering power model and appropriate for use with any expression for the radial kernel width in water as a function of depth. Methods: Using Fermi-Eyges transport theory, the authors derive an expression for the radial pencil beam width in heterogeneous slab geometries which is independent of the proton scattering power and related quantities. The authors then perform test calculations in homogeneous and heterogeneous slab phantoms using both the original 2D scaling model and the new model with expressions for the radial kernel width in water computed from both local and nonlocal scattering power models, as well as a nonlocal parameterization of Moliere scattering theory. In addition to kernel width calculations, dose calculations are also performed for a narrow Gaussian proton beam. Results: Pencil beam width calculations indicate that both 2D scaling formalisms perform well when the radial kernel width in water is derived from a local scattering power model. Computing the radial kernel width from a nonlocal scattering model results in the local 2D scaling formula under-predicting the pencil beam width by as much as 1.4 mm (21%) at the depth of the Bragg peak for a 220 MeV proton beam in homogeneous water. This translates into a 32% dose discrepancy for a 5 mm Gaussian proton beam. Similar trends were observed for calculations made in heterogeneous slab phantoms where it was also noted that errors tend to increase with greater beam penetration. The generalized 2D scaling model performs well in all situations, with a maximum dose error of 0.3% at the Bragg peak in a heterogeneous phantom containing 3 cm of hard bone. Conclusions: The authors have derived a generalized form of 2D pencil beam scaling which is independent of the proton scattering power model and robust to the functional form of the radial kernel width in water used for the calculations. Sample calculations made with this model show excellent agreement with expected values in both homogeneous water and heterogeneous phantoms.

  6. Gutenberg-Richter Scaling - A New Paradigm

    E-Print Network [OSTI]

    Serino, C A; Klein, W

    2010-01-01T23:59:59.000Z

    We introduce a new model for an earthquake fault system that is composed of non-interacting simple lattice models with different levels of damage denoted by $q$. The undamaged lattice models ($q=0$) have Gutenberg-Richter scaling with a cumulative exponent $\\beta=1/2$, whereas the damaged models do not have well defined scaling. However, if we consider the "fault system" consisting of all models, damaged and undamaged, we get excellent scaling with the exponent depending on the relative frequency with which faults with a particular amount of damage occur in the fault system. This paradigm combines the idea that Gutenberg-Richter scaling is associated with an underlying critical point with the notion that the structure of a fault system also affects the statistical distribution of earthquakes. In addition, it provides a framework in which the variation, from one tectonic region to another, of the scaling exponent, or $b$-value, can be understood.

  7. Bare Higgs mass at Planck scale

    E-Print Network [OSTI]

    Yuta Hamada; Hikaru Kawai; Kin-ya Oda

    2015-01-19T23:59:59.000Z

    We compute one- and two-loop quadratic divergent contributions to the bare Higgs mass in terms of the bare couplings in the Standard Model. We approximate the bare couplings, defined at the ultraviolet cutoff scale, by the MS-bar ones at the same scale, which are evaluated by the two-loop renormalization group equations for the Higgs mass around 126GeV in the Standard Model. We obtain the cutoff scale dependence of the bare Higgs mass, and examine where it becomes zero. We find that when we take the current central value for the top quark pole mass, 173GeV, the bare Higgs mass vanishes if the cutoff is about 10^{23}GeV. With a 1.3 sigma smaller mass, 170GeV, the scale can be of the order of the Planck scale.

  8. Lower scaling dimensions of quarks and gluons and new energy scales

    E-Print Network [OSTI]

    F. Palumbo

    1996-05-08T23:59:59.000Z

    We consider the possibility that quarks and gluons, due to confinement, have lower scaling dimensions. In such a case there appear naturally new energy scales below which the standard theory is recovered. Arguments are given whereby for dimension $1/2$ of the quarks the theory is unitary also above these energy scales.

  9. Impact of Friction and Scale-Dependent Initial Stress on Radiated Energy-Moment Scaling

    E-Print Network [OSTI]

    Shaw, Bruce E.

    . Shaw Lamont­Doherty Earth Observatory, Columbia University, New York, USA The radiated energy coming271 Impact of Friction and Scale-Dependent Initial Stress on Radiated Energy-Moment Scaling Bruce E of elucidat- ing their radiated energy-moment scaling. We find, contrary to expectations, that apparent stress

  10. Maximal freedom at minimum cost: linear large-scale structure in general modifications of gravity

    E-Print Network [OSTI]

    Emilio Bellini; Ignacy Sawicki

    2014-06-17T23:59:59.000Z

    We present a turnkey solution, ready for implementation in numerical codes, for the study of linear structure formation in general scalar-tensor models involving a single universally coupled scalar field. We show that the totality of cosmological information on the gravitational sector can be compressed - without any redundancy - into five independent and arbitrary functions of time only and one constant. These describe physical properties of the universe: the observable background expansion history, fractional matter density today, and four functions of time describing the properties of the dark energy. We show that two of those dark-energy property functions control the existence of anisotropic stress, the other two - dark-energy clustering, both of which are can be scale-dependent. All these properties can in principle be measured, but no information on the underlying theory of acceleration beyond this can be obtained. We present a translation between popular models of late-time acceleration (e.g. perfect fluids, f (R), kinetic gravity braiding, galileons), as well as the effective field theory framework, and our formulation. In this way, implementing this formulation numerically would give a single tool which could consistently test the majority of models of late-time acceleration heretofore proposed.

  11. Magnetic reconnection on the ion-skin-depth scale in the dusty magnetotail of a comet

    SciTech Connect (OSTI)

    Jovanovic, D.; Shukla, P.K.; Morfill, G. [Institute of Physics, P.O. Box 57, 11001 Belgrade (Serbia and Montenegro); Institut fuer Theoretische Physik IV, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany); Max-Planck-Institut fuer extraterrestrische Physik, D-85740 Garching (Germany)

    2005-04-15T23:59:59.000Z

    Resistive magnetic reconnection is studied in a dusty plasma configuration without a guide magnetic field, typical for cometary tails. For a high-{beta} plasma ({beta}{approx}1) consisting of electrons, ions, and immobile dust grains that constitute a neutralizing background, a two-fluid description is used to study electromagnetic perturbations with the frequency below the ion gyrofrequency, propagating at an arbitrary angle relative to the background magnetic field and including the effects of the Hall current. The perturbations consist of both the compressional and torsional components of the magnetic field, as well as of the acoustic perturbations and the electrostatic potential. The symmetry breaking between electrons and ions, introduced by the presence of dust grains, gives rise to an E-vectorxB-vector current in the unperturbed state which can support an antiparallel magnetic field configuration even in a cold plasma. In the perturbed state, the emergence of a new electromagnetic mode in a dusty plasma, which is evanescent below the Rao cutoff frequency and has the characteristic wavelength comparable to the ion skin depth, enables the reconnection at short spatial scales. The growth rate of the tearing instability is evaluated analytically.

  12. TWO THEORIES FOR COMPUTING THE LOGICAL FORM OF MASS EXPRESSIONS Francis Jeffry Pelletier

    E-Print Network [OSTI]

    There are various difficulties in accomodating the traditional logical expressions into larger expressions

  13. Scaling between structural relaxation and caged dynamics in Ca_{0.4}K_0.6(NO_{3})_{1.4} and glycerol: free volume, time scales and implications for the pressure-energy correlations

    E-Print Network [OSTI]

    Alistar Ottochian; Dino Leporini

    2011-01-14T23:59:59.000Z

    The scaling of the slow structural relaxation with the fast caged dynamics is evidenced in the molten salt Ca_{0.4}K_{0.6}(NO_{3}$)_{1.4} (CKN) over about thirteen decades of the structural relaxation time. Glycerol caling was analyzed in detail. In glycerol, the short-time mean-square displacement , a measure of the caged dynamics, is contributed by free-volume. It is seen that, in order to evidence the scaling, the observation time of the fast dynamics must be shorter than the time scales of the relaxation processes. Systems with both negligible (like CKN, glycerol and network glassformers) and high (like van der Waals liquids and polymers) pressure-energy correlations exhibit the scaling between the slow relaxation and the fast caged dynamics. According to the available experiments, an isomorph-invariant expression of the master curve of the scaled data is not distinguishable from a simpler not-invariant expression. Instead, the latter grees better with the simulations on a wide class of model polymers.

  14. Gene expression profiles in irradiated cancer cells

    SciTech Connect (OSTI)

    Minafra, L.; Bravatà, V.; Russo, G.; Ripamonti, M.; Gilardi, M. C. [IBFM CNR - LATO, Cefalù, Segrate (Italy)] [IBFM CNR - LATO, Cefalù, Segrate (Italy)

    2013-07-26T23:59:59.000Z

    Knowledge of the molecular and genetic mechanisms underlying cellular response to radiation may provide new avenues to develop innovative predictive tests of radiosensitivity of tumours and normal tissues and to improve individual therapy. Nowadays very few studies describe molecular changes induced by hadrontherapy treatments, therefore this field has to be explored and clarified. High-throughput methodologies, such as DNA microarray, allow us to analyse mRNA expression of thousands of genes simultaneously in order to discover new genes and pathways as targets of response to hadrontherapy. Our aim is to elucidate the molecular networks involved in the sensitivity/resistance of cancer cell lines subjected to hadrontherapy treatments with a genomewide approach by using cDNA microarray technology to identify gene expression profiles and candidate genes responsible of differential cellular responses.

  15. Regulation of methane genes and genome expression

    SciTech Connect (OSTI)

    John N. Reeve

    2009-09-09T23:59:59.000Z

    At the start of this project, it was known that methanogens were Archaeabacteria (now Archaea) and were therefore predicted to have gene expression and regulatory systems different from Bacteria, but few of the molecular biology details were established. The goals were then to establish the structures and organizations of genes in methanogens, and to develop the genetic technologies needed to investigate and dissect methanogen gene expression and regulation in vivo. By cloning and sequencing, we established the gene and operon structures of all of the “methane” genes that encode the enzymes that catalyze methane biosynthesis from carbon dioxide and hydrogen. This work identified unique sequences in the methane gene that we designated mcrA, that encodes the largest subunit of methyl-coenzyme M reductase, that could be used to identify methanogen DNA and establish methanogen phylogenetic relationships. McrA sequences are now the accepted standard and used extensively as hybridization probes to identify and quantify methanogens in environmental research. With the methane genes in hand, we used northern blot and then later whole-genome microarray hybridization analyses to establish how growth phase and substrate availability regulated methane gene expression in Methanobacterium thermautotrophicus ?H (now Methanothermobacter thermautotrophicus). Isoenzymes or pairs of functionally equivalent enzymes catalyze several steps in the hydrogen-dependent reduction of carbon dioxide to methane. We established that hydrogen availability determine which of these pairs of methane genes is expressed and therefore which of the alternative enzymes is employed to catalyze methane biosynthesis under different environmental conditions. As were unable to establish a reliable genetic system for M. thermautotrophicus, we developed in vitro transcription as an alternative system to investigate methanogen gene expression and regulation. This led to the discovery that an archaeal protein, designated TFE, that had sequences in common with the eukaryotic general transcription factor TFIIE, stimulated archaeal transcription initiation and that the archaeal TATA-box binding protein (TBP) remained attached to the promoter region whereas the transcription factor TFB dissociated from the template DNA following initiation. DNA sequences that directed the localized assembly of archaeal histones into archaeal nucleosomes were identified, and we established that transcription by an archaeal RNA polymerase was slowed but not blocked by archaeal nucleosomes. We developed a new protocol to purify archaeal RNA polymerases and with this enzyme and additional improvements to the in vitro transcription system, we established the template requirements for archaeal transcription termination, investigated the activities of proteins predicted to be methane gene regulators, and established how TrpY, a novel archaeal regulator of expression of the tryptophan biosynthetic operon functions in M. thermautotrophicus. This also resulted in the discovery that almost all M. thermautotrophicus mutants isolated as spontaneously resistant to 5-methyl tryptophan (5MTR) had mutations in trpY and were therefore 5MTR through de-repressed trp operon expression. This established a very simple, practical procedure to determine and quantify the DNA sequence changes that result from exposure of this Archaeon to any experimental mutagenesis protocol. Following the discovery that the Thermococcus kodakaraensis was amenable to genetic manipulation, we established this technology at OSU and subsequently added plasmid expression, a reporter system and additional genetic selections to the T. kodakaraensis genetic toolbox. We established that transcription and translation are coupled in this Archaeon, and by combining in vitro transcription and in vivo genetics, we documented that both TFB1 and TFB2 support transcription initiation in T. kodakaraensis. We quantified the roles of ribosome binding sequences and alternative initiation codons in translation initiation, established that polarity e

  16. Kinetic decoupling of WIMPs: analytic expressions

    E-Print Network [OSTI]

    Visinelli, Luca

    2015-01-01T23:59:59.000Z

    We present a general expression for the values of the average kinetic energy and of the temperature of kinetic decoupling of a WIMP, valid for any cosmological model. We show an example of the usage of our solution when the Hubble rate has a power-law dependence on temperature, and we show results for the specific cases of kination cosmology and low- temperature reheating cosmology.

  17. Pressurized melt ejection into scaled reactor cavities

    SciTech Connect (OSTI)

    Tarbell, W.W.; Pilch, M.; Brockmann, J.E.; Ross, J.W.; Gilbert, D.W.

    1986-10-01T23:59:59.000Z

    This report describes four tests performed in the High-Pressure Melt Streaming Program (HIPS) using linear-scaled cavities of the Zion Nuclear Power Plant. These experiments were conducted to study the phenomena involved in high-pressure ejection of core debris into the cavity beneath the reactor pressure vessel. One-tenth and one-twentieth linear scale models of reactor cavities were constructed and instrumented. The first test used an apparatus constructed of alumina firebrick to minimize the potential interaction between the ejected melt and cavity material. The remaining three experiments used scaled representations of the Zion nuclear plant geometry, constructed of prototypic concrete composition.

  18. Cosmological constant in scale-invariant theories

    SciTech Connect (OSTI)

    Foot, Robert; Kobakhidze, Archil; Volkas, Raymond R. [School of Physics, University of Melbourne, Victoria 3010 (Australia)

    2011-10-01T23:59:59.000Z

    The incorporation of a small cosmological constant within radiatively broken scale-invariant models is discussed. We show that phenomenologically consistent scale-invariant models can be constructed which allow a small positive cosmological constant, providing certain relation between the particle masses is satisfied. As a result, the mass of the dilaton is generated at two-loop level. Another interesting consequence is that the electroweak symmetry-breaking vacuum in such models is necessarily a metastable ''false'' vacuum which, fortunately, is not expected to decay on cosmological time scales.

  19. Method and system for small scale pumping

    DOE Patents [OSTI]

    Insepov, Zeke (Darien, IL); Hassanein, Ahmed (Bolingbrook, IL)

    2010-01-26T23:59:59.000Z

    The present invention relates generally to the field of small scale pumping and, more specifically, to a method and system for very small scale pumping media through microtubes. One preferred embodiment of the invention generally comprises: method for small scale pumping, comprising the following steps: providing one or more media; providing one or more microtubes, the one or more tubes having a first end and a second end, wherein said first end of one or more tubes is in contact with the media; and creating surface waves on the tubes, wherein at least a portion of the media is pumped through the tube.

  20. Nuclear Scaling and the EMC Effect

    E-Print Network [OSTI]

    D. W. Higinbotham; J. Gomez; E. Piasetzky

    2010-09-20T23:59:59.000Z

    Results of recent EMC effect measurements and nuclear scaling measurements have both been attributed to local nuclear density effects and not properties of the bulk nuclear system. This lead us to the phenomenological observation that the ratio of the slopes in the 0.3 EMC data scale as the ratio of the x_B > 1 nuclear scaling plateaus. Using this correlation, we developed a phenomenological relation which reproduces the general trends and features of the EMC effect for nuclei from 3He to 56Fe.

  1. Scaling Reinforcement Learning Paradigms for Motor Control 

    E-Print Network [OSTI]

    Vijayakumar, Sethu; Peters, Jan; Schaal, Stefan

    Reinforcement learning offers a general framework to explain reward related learning in artificial and biological motor control. However, current reinforcement learning methods rarely scale to high dimensional movement systems ...

  2. Scaling Up Nascent Photovoltaics AT Home

    Broader source: Energy.gov [DOE]

    Three awardees are helping the nation reclaim its competitive edge in solar manufacturing through SUNPATH, which stands for Scaling Up Nascent PV AT Home. This program strengthens the domestic...

  3. Integrating Fermentation and Transesterification Industrial Scale Processes

    E-Print Network [OSTI]

    Pike, Ralph W.

    Integrating Fermentation and Transesterification Industrial Scale Processes in the Lower l d CO2 hanol, acetic acid etc. from CO2 Algae growth for use as biomass M lti it i O ti i ti P bl

  4. Extreme Scaling and Performance across Diverse Architectures...

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

    Extreme Scaling and Performance across Diverse Architectures Start Date: Mar 31 2015 - 11:00am BuildingRoom: Online Webinar Speaker(s): Salman Habib (Argonne National Laboratory;...

  5. On the seismic scaling relations $\\Delta \

    E-Print Network [OSTI]

    Belkacem, K; Mosser, B; Goupil, M J; Ludwig, H -G

    2013-01-01T23:59:59.000Z

    Scaling relations between asteroseismic quantities and stellar parameters are essential tools for studying stellar structure and evolution. We will address two of them, namely, the relation between the large frequency separation ($\\Delta \

  6. Large-scale simulations of reionization

    SciTech Connect (OSTI)

    Kohler, Katharina; /JILA, Boulder /Fermilab; Gnedin, Nickolay Y.; /Fermilab; Hamilton, Andrew J.S.; /JILA, Boulder

    2005-11-01T23:59:59.000Z

    We use cosmological simulations to explore the large-scale effects of reionization. Since reionization is a process that involves a large dynamic range--from galaxies to rare bright quasars--we need to be able to cover a significant volume of the universe in our simulation without losing the important small scale effects from galaxies. Here we have taken an approach that uses clumping factors derived from small scale simulations to approximate the radiative transfer on the sub-cell scales. Using this technique, we can cover a simulation size up to 1280h{sup -1} Mpc with 10h{sup -1} Mpc cells. This allows us to construct synthetic spectra of quasars similar to observed spectra of SDSS quasars at high redshifts and compare them to the observational data. These spectra can then be analyzed for HII region sizes, the presence of the Gunn-Peterson trough, and the Lyman-{alpha} forest.

  7. Agricultural Research for Development Scales & Diversity

    E-Print Network [OSTI]

    Agricultural Research for Development Scales & Diversity SLU, Uppsala 28-29 September 2011 28th September 2011 (morning) Agricultural Investments ..... Shenggen Fan, IFPRI Livestock production­ Global and local importance and development John McDermott, ILRI Smallholder agricultural intensification ­ means

  8. Planet-scale Human Mobility Measurement

    E-Print Network [OSTI]

    Pan Hui; Richard Mortier; Tristan Henderson; Jon Crowcroft

    2009-09-18T23:59:59.000Z

    Research into, and design and construction of mobile systems and algorithms requires access to large-scale mobility data. Unfortunately, the wireless and mobile research community lacks such data. For instance, the largest available human contact traces contain only 100 nodes with very sparse connectivity, limited by experimental logistics. In this paper we pose a challenge to the community: how can we collect mobility data from billions of human participants? We re-assert the importance of large-scale datasets in communication network design, and claim that this could impact fundamental studies in other academic disciplines. In effect, we argue that planet-scale mobility measurements can help to save the world. For example, through understanding large-scale human mobility, we can track and model and contain the spread of epidemics of various kinds.

  9. Extragalactic jets on subpc and large scales

    E-Print Network [OSTI]

    F. Tavecchio

    2007-08-20T23:59:59.000Z

    Jets can be probed in their innermost regions (d~0.1 pc) through the study of the relativistically-boosted emission of blazars. On the other extreme of spatial scales, the study of structure and dynamics of extragalactic relativistic jets received renewed impulse after the discovery, made by Chandra, of bright X-ray emission from regions at distances larger than hundreds of kpc from the central engine. At both scales it is thus possible to infer some of the basic parameters of the flow (speed, density, magnetic field intensity, power). After a brief review of the available observational evidence, I discuss how the comparison between the physical quantities independently derived at the two scales can be used to shed light on the global dynamics of the jet, from the innermost regions to the hundreds of kpc scale.

  10. Program Management for Large Scale Engineering Programs

    E-Print Network [OSTI]

    Oehmen, Josef

    The goal of this whitepaper is to summarize the LAI research that applies to program management. The context of most of the research discussed in this whitepaper are large-scale engineering programs, particularly in the ...

  11. Predictions From High Scale Mixing Unification Hypothesis

    E-Print Network [OSTI]

    Srivastava, Rahul

    2015-01-01T23:59:59.000Z

    Starting with 'High Scale Mixing Unification' hypothesis, we investigate the renormalization group evolution of mixing parameters and masses for both Dirac and Majorana type neutrinos. Following this hypothesis, the PMNS mixing parameters are taken to be identical to the CKM ones at a unifying high scale. Then, they are evolved to a low scale using MSSM renormalization-group equations. For both type of neutrinos, the renormalization group evolution 'naturally' results in a non-zero and small value of leptonic mixing angle $\\theta_{13}$. One of the important predictions of this analysis is that, in both cases, the mixing angle $\\theta_{23}$ turns out to be non-maximal for most of the parameter range. We also elaborate on the important differences between Dirac and Majorana neutrinos within our framework and how to experimentally distinguish between the two scenarios. Furthermore, for both cases, we also derive constraints on the allowed parameter range for the SUSY breaking and unification scales, for which th...

  12. DECOMPOSITION OF LARGE-SCALE STOCHASTIC OPTIMAL ...

    E-Print Network [OSTI]

    2009-03-06T23:59:59.000Z

    consider dynamical systems that can be divided into small-scale independent .... realizations of the noise process are identical up to time t, then the same ..... without our approximation, the algorithm would build primal iterates that converge ...

  13. External Surveillance of Geothermal Scale Deposits Employing...

    Open Energy Info (EERE)

    can detect scale buildup in pipes to 1-2 m accuracy. Radiography has also detected corrosion in piping. Development of this technique is shown to be useful of monitoring...

  14. Large scale prediction models and algorithms

    E-Print Network [OSTI]

    Monsch, Matthieu (Matthieu Frederic)

    2013-01-01T23:59:59.000Z

    Over 90% of the data available across the world has been produced over the last two years, and the trend is increasing. It has therefore become paramount to develop algorithms which are able to scale to very high dimensions. ...

  15. Acoustofluidics 10: Scaling laws in acoustophoresis

    E-Print Network [OSTI]

    of sound c0 in a liquid scales like the density r0 of the liquid to the power minus one-half, written as c0 in a microfluidic system scales like the pressure drop Dp to the power one, written as Q f Dp, and the speed), as well as density r0 and viscosity h of the liquid. We know the full answer to be1 Q ¼ pa4 8hL Dp

  16. Modeling of Distributed Systems by Concurrent Regular Expressions

    E-Print Network [OSTI]

    Garg, Vijay

    Modeling of Distributed Systems by Concurrent Regular Expressions Vijay K. Garg Department of Electrical and Computer Engineering, University of Texas, Austin, TX 78712 We propose an algebraic model called concurrent regular expressions for modeling and anal- ysis of distributed systems

  17. Modeling of Distributed Systems by Concurrent Regular Expressions

    E-Print Network [OSTI]

    Garg, Vijay

    Modeling of Distributed Systems by Concurrent Regular Expressions Vijay K. Garg Department of Electrical and Computer Engineering, University of Texas, Austin, TX 78712 We propose an algebraic model called concurrent regular expressions for modeling and anal­ ysis of distributed systems

  18. BENCH SCALE SALTSTONE PROCESS DEVELOPMENT MIXING STUDY

    SciTech Connect (OSTI)

    Cozzi, A.; Hansen, E.

    2011-08-03T23:59:59.000Z

    The Savannah River National Laboratory (SRNL) was requested to develop a bench scale test facility, using a mixer, transfer pump, and transfer line to determine the impact of conveying the grout through the transfer lines to the vault on grout properties. Bench scale testing focused on the effect the transfer line has on the rheological property of the grout as it was processed through the transfer line. Rheological and other physical properties of grout samples were obtained prior to and after pumping through a transfer line. The Bench Scale Mixing Rig (BSMR) consisted of two mixing tanks, grout feed tank, transfer pump and transfer hose. The mixing tanks were used to batch the grout which was then transferred into the grout feed tank. The contents of the feed tank were then pumped through the transfer line (hose) using a progressive cavity pump. The grout flow rate and pump discharge pressure were monitored. Four sampling stations were located along the length of the transfer line at the 5, 105 and 205 feet past the transfer pump and at 305 feet, the discharge of the hose. Scaling between the full scale piping at Saltstone to bench scale testing at SRNL was performed by maintaining the same shear rate and total shear at the wall of the transfer line. The results of scaling down resulted in a shorter transfer line, a lower average velocity, the same transfer time and similar pressure drops. The condition of flow in the bench scale transfer line is laminar. The flow in the full scale pipe is in the transition region, but is more laminar than turbulent. The resulting plug in laminar flow in the bench scale results in a region of no-mixing. Hence mixing, or shearing, at the bench scale should be less than that observed in the full scale, where this plug is non existent due to the turbulent flow. The bench scale tests should be considered to be conservative due to the highly laminar condition of flow that exists. Two BSMR runs were performed. In both cases, wall shearing was shown to reduce the rheological properties of the grout as it was processed through the transfer line. Samples taken at the static feed tank showed that gelling impacted the rheological properties of the grout before it was fed into the pump and transfer line. A comparison of the rheological properties of samples taken at the feed tank and transfer line discharge indicated shearing of the grout was occurring in the transfer line. Bench scale testing of different mixing methods with three different salt solutions showed that method of mixing influences the rheological properties of the grouts. The paddle blade mixing method of the salt solution used for the BMSR testing provided comparable rheological properties of the grout prepared in the BMSR after 14 minutes of processing, B3. The paddle blade mixing method can be used to represent BMSR results and mixing time can be adjusted to represent larger scale mixing.

  19. Ectopic ERK Expression Induces Phenotypic Conversion of C10 Cells and Alters DNA Methyltransferase Expression

    SciTech Connect (OSTI)

    Sontag, Ryan L.; Weber, Thomas J.

    2012-05-04T23:59:59.000Z

    In some model systems constitutive extracellular signal regulated kinase (ERK) activation is sufficient to promote an oncogenic phenotype. Here we investigate whether constitutive ERK expression influences phenotypic conversion in murine C10 type II alveolar epithelial cells. C10 cells were stably transduced with an ERK1-green fluorescent protein (ERK1-GFP) chimera or empty vector and ectopic ERK expression was associated with the acquisition of soft agar focus-forming potential in late passage, but not early passage cells. Late passage ERK1-GFP cells exhibited a significant increase in the expression of DNA methyl transferases (DNMT1 and 3b) and a marked increase in sensitivity to 5-azacytidine (5-azaC)-mediated toxicity, relative to early passage ERK1-GFP cells and vector controls. The expression of xeroderma pigmentosum complementation group A (XPA) and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) were significantly increased in late passage cells, suggesting enhanced DNA damage recognition and repair activity which we interpret as a reflection of genomic instability. Phospho-ERK levels were dramatically decreased in late passage ERK1-GFP cells, relative to early passage and vector controls, and phospho-ERK levels were restored by treatment with sodium orthovanadate, indicating a role for phosphatase activity in this response. Collectively these observations suggest that ectopic ERK expression promotes phenotypic conversion of C10 cells that is associated with latent effects on epigenetic programming and phosphatase activities.

  20. Power-law scaling in protein synthesis of a stochastic regulon

    E-Print Network [OSTI]

    Emily Chapman-McQuiston; Chuck Yeung; X. L. Wu

    2008-08-07T23:59:59.000Z

    We investigate the protein expression pattern of the lamB gene in Escherichia coli LE392. The gene product LamB is an important membrane protein for maltose transport into cells but it is also exploited by bacteriophage lambda for infection. Although our bacterial population is clonal, stochastic gene expression leads to a majority population with a large receptor number and a minority population with a small receptor number. We find that the LamB receptor distribution p(n) of the small-n population is scale invariant with the exponent depending on growth conditions. A heuristic model is proposed that relates the observed exponent to the protein production rate.

  1. Interactive 3D Gene Expression Viewer Victor E. Gerth*

    E-Print Network [OSTI]

    Vize, Peter D.

    Interactive 3D Gene Expression Viewer Victor E. Gerth* University of Calgary, Department. The Interactive Gene Expression viewer provides a way to view spatial relationships between different gene expression patterns and anatomic features. Web based 3D enabled technologies such as the Interactive Gene

  2. Generating and Interpreting Referring Expressions in Dustin Arthur Smith

    E-Print Network [OSTI]

    Referring Expressions in Context by Dustin Arthur Smith Submitted to the Program of Media Arts and Sciences, MIT Media Lab #12;Generating and Interpreting Referring Expressions in Context by Dustin Arthur SmithGenerating and Interpreting Referring Expressions in Context by Dustin Arthur Smith B.S., Wake

  3. Comparing the Expressive Power of Access Control Mahesh V. Tripunitara

    E-Print Network [OSTI]

    Li, Ninghui

    Comparing the Expressive Power of Access Control Models Mahesh V. Tripunitara tripunit the expressive power of access control models is rec- ognized as a fundamental problem in computer security the expressive power of access control models into a single context and to compare such models to one another

  4. TECHNICAL ADVANCE Spatial control of transgene expression in rice

    E-Print Network [OSTI]

    Haseloff, Jim

    spatial control of transgene expression in all organs of the model monocotyledonous species rice (Oryza. In particular, spatial control of trans- gene expression allowing the manipulation of gene expres- sionTECHNICAL ADVANCE Spatial control of transgene expression in rice (Oryza sativa L.) using the GAL4

  5. Probabilistic Models for Collecting, Analyzing, and Modeling Expression Data

    E-Print Network [OSTI]

    ;Keywords: genomics, gene expression, gene regulation, microarray, RNA-Seq, transcriptomics, error to integrate expression and interaction data in order to predict targets and networks regulated by microRNAs. Combined, the methods developed in this thesis provide a solution to the pipeline of expression analysis

  6. CSP is expressive enough for A.W. Roscoe

    E-Print Network [OSTI]

    Oxford, University of

    CSP is expressive enough for A.W. Roscoe Oxford University Computing Laboratory {Bill.Roscoe@comlab.ox.ac.uk} Abstract. Recent results show that Hoare's CSP, augmented by one additional operator, can express every operator whose operational semantics are expressible in a new notation and are therefore "CSP

  7. Effect of wettability on scale-up of multiphase flow from core-scale to reservoir fine-grid-scale

    SciTech Connect (OSTI)

    Chang, Y.C.; Mani, V.; Mohanty, K.K. [Univ. of Houston, TX (United States)

    1997-08-01T23:59:59.000Z

    Typical field simulation grid-blocks are internally heterogeneous. The objective of this work is to study how the wettability of the rock affects its scale-up of multiphase flow properties from core-scale to fine-grid reservoir simulation scale ({approximately} 10{prime} x 10{prime} x 5{prime}). Reservoir models need another level of upscaling to coarse-grid simulation scale, which is not addressed here. Heterogeneity is modeled here as a correlated random field parameterized in terms of its variance and two-point variogram. Variogram models of both finite (spherical) and infinite (fractal) correlation length are included as special cases. Local core-scale porosity, permeability, capillary pressure function, relative permeability functions, and initial water saturation are assumed to be correlated. Water injection is simulated and effective flow properties and flow equations are calculated. For strongly water-wet media, capillarity has a stabilizing/homogenizing effect on multiphase flow. For small variance in permeability, and for small correlation length, effective relative permeability can be described by capillary equilibrium models. At higher variance and moderate correlation length, the average flow can be described by a dynamic relative permeability. As the oil wettability increases, the capillary stabilizing effect decreases and the deviation from this average flow increases. For fractal fields with large variance in permeability, effective relative permeability is not adequate in describing the flow.

  8. Local Availability of mathematics and number scaling: Effects on quantum physics

    E-Print Network [OSTI]

    Paul Benioff

    2012-05-01T23:59:59.000Z

    Local availability of mathematics and number scaling provide an approach to a coherent theory of physics and mathematics. Local availability of mathematics assigns separate mathematical universes, U_{x}, to each space time point, x. The mathematics available to an observer, O_{x}, at x is contained in U_{x}. Number scaling is based on extending the choice freedom of vector space bases in gauge theories to choice freedom of underlying number systems. Scaling arises in the description, in U_{x}, of mathematical systems in U_{y}. If a_{y} or \\psi_{y} is a number or a quantum state in U_{y}, then the corresponding number or state in U_{x} is r_{y,x}a_{x} or r_{y,x}\\psi_{x}. Here a_{x} and \\psi_{x} are the same number and state in U_{x} as a_{y} and \\psi_{y} are in U_{y}. If y=x+\\hat{\\mu}dx is a neighbor point of x, then the scaling factor is r_{y,x}=\\exp(\\vec{A}(x)\\cdot\\hat{\\mu}dx) where \\vec{A} is a vector field, assumed here to be the gradient of a scalar field. The effects of scaling and local availability of mathematics on quantum theory show that scaling has two components, external and internal. External scaling is shown above for a_{y} and \\psi_{y}. Internal scaling occurs in expressions with integrals or derivatives over space or space time. An example is the replacement of the position expectation value, \\int\\psi^{*}(y)y\\psi(y)dy, by \\int_{x}r_{y,x}\\psi^{*}_{x}(y_{x})y_{x}\\psi_{x}(y_{x})dy_{x}. This is an integral in U_{x}. The good agreement between quantum theory and experiment shows that scaling is negligible in a space region, L, in which experiments and calculations can be done, and results compared. L includes the solar system, but the speed of light limits the size of L to a few light years. Outside of $L$, at cosmological distances, the limits on scaling are not present.

  9. Perturbative QCD, a universal QCD scale, long-range spin-orbit potential, and the properties of heavy quarkonia

    SciTech Connect (OSTI)

    Fulcher, L.P. (Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio (USA))

    1991-10-01T23:59:59.000Z

    A modified version of Richardson's potential is used to calculate the energies, fine-structure splittings, leptonic widths, and dipole transition rates of charmonium and the {Upsilon} system. The effects of the perturbative color-magnetic (spin-dependent) potentials are included to the full radiative one-loop level. The question of the consistency of the data with a universal QCD scale and its expression in the central and spin-dependent potentials is addressed.

  10. Reduced expression of Autographa californica nucleopolyhedrovirus ORF34, an essential gene, enhances heterologous gene expression

    SciTech Connect (OSTI)

    Salem, Tamer Z. [Department of Entomology, Michigan State University, East Lansing, MI 48824 (United States) [Department of Entomology, Michigan State University, East Lansing, MI 48824 (United States); Department of Microbial Molecular Biology, AGERI, Agricultural Research Center, Giza 12619 (Egypt); Division of Biomedical Sciences, Zewail University, Zewail City of Science and Technology, Giza 12588 (Egypt); Zhang, Fengrui [Department of Entomology, Michigan State University, East Lansing, MI 48824 (United States)] [Department of Entomology, Michigan State University, East Lansing, MI 48824 (United States); Thiem, Suzanne M., E-mail: smthiem@msu.edu [Department of Entomology, Michigan State University, East Lansing, MI 48824 (United States); Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824 (United States)

    2013-01-20T23:59:59.000Z

    Autographa californica multiple nucleopolyhedrovirus ORF34 is part of a transcriptional unit that includes ORF32, encoding a viral fibroblast growth factor (FGF) and ORF33. We identified ORF34 as a candidate for deletion to improve protein expression in the baculovirus expression system based on enhanced reporter gene expression in an RNAi screen of virus genes. However, ORF34 was shown to be an essential gene. To explore ORF34 function, deletion (KO34) and rescue bacmids were constructed and characterized. Infection did not spread from primary KO34 transfected cells and supernatants from KO34 transfected cells could not infect fresh Sf21 cells whereas the supernatant from the rescue bacmids transfection could recover the infection. In addition, budded viruses were not observed in KO34 transfected cells by electron microscopy, nor were viral proteins detected from the transfection supernatants by western blots. These demonstrate that ORF34 is an essential gene with a possible role in infectious virus production.

  11. Identification of an elasticity-tensor random field at mesoscopic scale using experimental measurements at mesoscopic and macroscopic scales for

    E-Print Network [OSTI]

    Boyer, Edmond

    of the random field at meso-scale (1) using image field measurements at macro- and meso-scales, (2) introducing- and meso-scales for a given sample submitted to a given load. The experimental displacement (strain) field is measured on the whole domain (1x1 cm) at the macro-scale while, at the meso-scale, the displacement (strain

  12. Expression of multiple proteins in transgenic plants

    DOE Patents [OSTI]

    Vierstra, Richard D. (Madison, WI); Walker, Joseph M. (Madison, WI)

    2002-01-01T23:59:59.000Z

    A method is disclosed for the production of multiple proteins in transgenic plants. A DNA construct for introduction into plants includes a provision to express a fusion protein of two proteins of interest joined by a linking domain including plant ubiquitin. When the fusion protein is produced in the cells of a transgenic plant transformed with the DNA construction, native enzymes present in plant cells cleave the fusion protein to release both proteins of interest into the cells of the transgenic plant. Since the proteins are produced from the same fusion protein, the initial quantities of the proteins in the cells of the plant are approximately equal.

  13. MICRORNA EXPRESSION WITHIN PERIOVULATORY MURAL GRANULOSA CELLS

    E-Print Network [OSTI]

    Fiedler, Stephanie Deanne

    2008-01-01T23:59:59.000Z

    ] primary miRNA (pri-miRNA) [32, 33]. Pri-miRNAs are cleaved by the RNase III endonuclease Drosha which works in combination with the co-factor DGCR8 to produce a ~60-70 nucleotide (nt) stem-loop intermediate precursor miRNA (pre-miRNA) that contains a... spines [70] via a microtubule based mechanism [71] which promotes the retraction of the cell membrane [66]. In addition to neuronal tissue, p250GAP has also been shown to be expressed in the human ovary [72], and the worm homolog (RRC-1) is known to co...

  14. Express Package Shipping Services | The Ames Laboratory

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. Category UC-l 1,EnergyExploring the Nature ofExpress Package

  15. Fact Sheet: Grid-Scale Flywheel Energy Storage Plant | Department...

    Office of Environmental Management (EM)

    Fact Sheet: Grid-Scale Flywheel Energy Storage Plant Fact Sheet: Grid-Scale Flywheel Energy Storage Plant Beacon Power will design, build, and operate a utility-scale 20 MW...

  16. Updated Capital Cost Estimates for Utility Scale Electricity

    E-Print Network [OSTI]

    Updated Capital Cost Estimates for Utility Scale Electricity Generating Plants April 2013 Information Administration | Updated Capital Cost Estimates for Utility Scale Electricity Generating Plants ii for Utility Scale Electricity Generating Plants ii Contents Introduction

  17. Citizen implementation of sustainability measures at the neighborhood scale

    E-Print Network [OSTI]

    Heilke, Ingrid (Ingrid Elizabeth)

    2010-01-01T23:59:59.000Z

    There is the potential for citizens to make a profound impact on the sustainability of cities at the neighborhood scale. This is the scale that people relate to spatially, economically, and socially. It is also a scale ...

  18. Notes on the delta-expansion approach to the 2D Ising susceptibility scaling

    E-Print Network [OSTI]

    Hirofumi Yamada

    2014-09-10T23:59:59.000Z

    We study the scaling of the magnetic susceptibility in the square Ising model based upon the delta-expansion in the high temperature phase. The susceptibility chi is expressed in terms of the mass M and expanded in powers of 1/M. The dilation around M=0 by the delta expansion and the parametric extension of the ratio of derivatives of chi, chi^{(ell+1)}/chi^{(ell)} is used as a test function for the estimation of the critical exponent gamma with no bias from information of the critical temperature. Estimation is done with the help of the principle of minimum sensitivity and detailed analysis revealed that ell=0,1 cases provide us accurate estimation results. Critical exponent of the sub-leading scaling term is also estimated.

  19. Gene expression profiling--Opening the black box of plant ecosystem responses to global change

    SciTech Connect (OSTI)

    Leakey, A.D.B.; Ainsworth, E.A.; Bernard, S.M.; Markelz, R.J.C.; Ort, D.R.; Placella, S.A.P.; Rogers, A.; Smith, M.D.; Sudderth, E.A.; Weston, D.J.; Wullschleger, S.D.; Yuan, S.

    2009-11-01T23:59:59.000Z

    The use of genomic techniques to address ecological questions is emerging as the field of genomic ecology. Experimentation under environmentally realistic conditions to investigate the molecular response of plants to meaningful changes in growth conditions and ecological interactions is the defining feature of genomic ecology. Since the impact of global change factors on plant performance are mediated by direct effects at the molecular, biochemical and physiological scales, gene expression analysis promises important advances in understanding factors that have previously been consigned to the 'black box' of unknown mechanism. Various tools and approaches are available for assessing gene expression in model and non-model species as part of global change biology studies. Each approach has its own unique advantages and constraints. A first generation of genomic ecology studies in managed ecosystems and mesocosms have provided a testbed for the approach and have begun to reveal how the experimental design and data analysis of gene expression studies can be tailored for use in an ecological context.

  20. Quantum Coherence Arguments for Cosmological Scale

    SciTech Connect (OSTI)

    Lindesay, James; /SLAC

    2005-05-27T23:59:59.000Z

    Homogeneity and correlations in the observed CMB are indicative of some form of cosmological coherence in early times. Quantum coherence in the early universe would be expected to give space-like phase coherence to any effects sourced to those times. If dark energy de-coherence is assumed to occur when the rate of expansion of the relevant cosmological scale parameter in the Friedmann-Lemaitre equations is no longer supra-luminal, a critical energy density is immediately defined. It is shown that the general class of dynamical models so defined necessarily requires a spatially flat cosmology in order to be consistent with observed structure formation. The basic assumption is that the dark energy density which is fixed during de-coherence is to be identified with the cosmological constant. It is shown for the entire class of models that the expected amplitude of fluctuations driven by the dark energy de-coherence process is of the order needed to evolve into the fluctuations observed in cosmic microwave background radiation and galactic clustering. The densities involved during de-coherence which correspond to the measured dark energy density turn out to be of the electroweak symmetry restoration scale. In an inflationary cosmology, this choice of the scale parameter in the FL equations directly relates the scale of dark energy decoherence to the De Sitter scales (associated with the positive cosmological constants) at both early and late times.

  1. Conformal Scaling Gauge Symmetry and Inflationary Universe

    E-Print Network [OSTI]

    Yue-Liang Wu

    2004-02-23T23:59:59.000Z

    Considering the conformal scaling gauge symmetry as a fundamental symmetry of nature in the presence of gravity, a scalar field is required and used to describe the scale behavior of universe. In order for the scalar field to be a physical field, a gauge field is necessary to be introduced. A gauge invariant potential action is constructed by adopting the scalar field and a real Wilson-like line element of the gauge field. Of particular, the conformal scaling gauge symmetry can be broken down explicitly via fixing gauge to match the Einstein-Hilbert action of gravity. As a nontrivial background field solution of pure gauge has a minimal energy in gauge interactions, the evolution of universe is then dominated at earlier time by the potential energy of background field characterized by a scalar field. Since the background field of pure gauge leads to an exponential potential model of a scalar field, the universe is driven by a power-law inflation with the scale factor $a(t) \\sim t^p$. The power-law index $p$ is determined by a basic gauge fixing parameter $g_F$ via $p = 16\\pi g_F^2[1 + 3/(4\\pi g_F^2) ]$. For the gauge fixing scale being the Planck mass, we are led to a predictive model with $g_F=1$ and $p\\simeq 62$.

  2. Peroxidase gene expression during tomato fruit ripening

    SciTech Connect (OSTI)

    Biggs, M.S.; Flurkey, W.H.; Handa, A.K.

    1987-04-01T23:59:59.000Z

    Auxin oxidation has been reported to play a critical role in the initiation of pear fruit ripening and a tomato fruit peroxidase (POD) has been shown to have IAA-oxidase activity. However, little is known about changes in the expression of POD mRNA in tomato fruit development. They are investigating the expression of POD mRNA during tomato fruit maturation. Fruit pericarp tissues from six stages of fruit development and ripening (immature green, mature green, breaker, turning, ripe, and red ripe fruits) were used to extract poly (A)/sup +/ RNAs. These RNAs were translated in vitro in a rabbit reticulocyte lysate system using L-/sup 35/S-methionine. The /sup 35/S-labeled products were immunoprecipitated with POD antibodies to determine the relative proportions of POD mRNA. High levels of POD mRNA were present in immature green and mature green pericarp, but declined greatly by the turning stage of fruit ripening. In addition, the distribution of POD mRNA on free vs bound polyribosomes will be presented, as well as the presence or absence of POD mRNA in other tomato tissues.

  3. Community- and Facility-Scale Tribal Renewable Energy Project...

    Office of Environmental Management (EM)

    Community- and Facility-Scale Tribal Renewable Energy Project Development and Finance Workshop: Colorado Community- and Facility-Scale Tribal Renewable Energy Project Development...

  4. Impact of subgrid-scale radiative heating variability on the...

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

    subgrid-scale radiative heating variability on the stratocumulus-to-trade cumulus transition in climate models. Impact of subgrid-scale radiative heating variability on the...

  5. Materials Science and Materials Chemistry for Large Scale Electrochemi...

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

    Science and Materials Chemistry for Large Scale Electrochemical Energy Storage: From Transportation to Electrical Grid Materials Science and Materials Chemistry for Large Scale...

  6. Introduction to Small-Scale Wind Energy Systems (Including RETScreen...

    Open Energy Info (EERE)

    Introduction to Small-Scale Wind Energy Systems (Including RETScreen Case Study) (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Introduction to Small-Scale...

  7. Sandia Energy - Computational Fluid Dynamics & Large-Scale Uncertainty...

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

    & Large-Scale Uncertainty Quantification for Wind Energy Home Highlights - HPC Computational Fluid Dynamics & Large-Scale Uncertainty Quantification for Wind Energy Previous Next...

  8. Algenol Biofuels Inc., Integrated Pilot-Scale Biorefinery

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

    Integrated Pilot- Scale Biorefinery for Producing Ethanol from Hybrid Algae Algenol Biofuels Inc., together with its partners, will construct an integrated pilot-scale...

  9. Enabling Mass-Scale Financing for Federal Energy, Water, and...

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

    Enabling Mass-Scale Financing for Federal Energy, Water, and Sustainability Projects Enabling Mass-Scale Financing for Federal Energy, Water, and Sustainability Projects...

  10. Overcoming the Barrier to Achieving Large-Scale Production -...

    Office of Environmental Management (EM)

    Overcoming the Barrier to Achieving Large-Scale Production - A Case Study Overcoming the Barrier to Achieving Large-Scale Production - A Case Study This presentation summarizes the...

  11. Overcoming the Barrier to Achieving Large-Scale Production -...

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

    Semprius Confidential 1 Overcoming the Barriers to Achieving Large-Scale Production - A Case Study From concept to large-scale production, one manufacturer tells the story and...

  12. Large Scale GSHP as Alternative Energy for American Farmers Geothermal...

    Open Energy Info (EERE)

    Scale GSHP as Alternative Energy for American Farmers Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Large Scale GSHP as Alternative...

  13. Solid Oxide Membrane (SOM) Electrolysis of Magnesium: Scale-Up...

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

    Oxide Membrane (SOM) Electrolysis of Magnesium: Scale-Up Research and Engineering for Light-Weight Vehicles Solid Oxide Membrane (SOM) Electrolysis of Magnesium: Scale-Up Research...

  14. 2013 Community- and Facility-Scale Tribal Renewable Energy Project...

    Office of Environmental Management (EM)

    2013 Community- and Facility-Scale Tribal Renewable Energy Project Development and Finance Workshop Presentations and Agenda 2013 Community- and Facility-Scale Tribal Renewable...

  15. Tribal Renewable Energy Advanced Course: Facility Scale Project...

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

    Facility Scale Project Development Tribal Renewable Energy Advanced Course: Facility Scale Project Development Watch the DOE Office of Indian Energy renewable energy course...

  16. Tribal Renewable Energy Advanced Course: Commercial Scale Project...

    Energy Savers [EERE]

    Commercial Scale Project Development Tribal Renewable Energy Advanced Course: Commercial Scale Project Development Watch the DOE Office of Indian Energy advanced course...

  17. Tribal Renewable Energy Advanced Course: Community Scale Project...

    Energy Savers [EERE]

    Tribal Renewable Energy Advanced Course: Community Scale Project Development Tribal Renewable Energy Advanced Course: Community Scale Project Development Watch the DOE Office of...

  18. assessment scale psas: Topics by E-print Network

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

    region, the logarithmic region and the outer region. In the space of scales, turbulent energy Marusic, Ivan 8 SCALE: A tool for Simple Connectivity Assessment in Lossy Environments...

  19. Commercial-Scale Renewable Energy Project Development Workshop...

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

    Colorado Community- and Facility-Scale Tribal Renewable Energy Project Development and Finance Workshop: Colorado Community-Scale Project Development and Finance Workshop: Oklahoma...

  20. Community-Scale Project Development and Finance Workshop Agenda...

    Energy Savers [EERE]

    Community-Scale Project Development and Finance Workshop Agenda and Presentations: Oklahoma Community-Scale Project Development and Finance Workshop Agenda and Presentations:...

  1. Sandia National Laboratories: functional wind-turbine blade scaling

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

    wind-turbine blade scaling National Rotor Testbed Functional Scaling Presented at American Institute of Aeronautics and Astronautics 2014 Scitech On April 15, 2014, in Energy,...

  2. Utility Scale Renewable Energy Development Near DOD Installations...

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

    Scale Renewable Energy Development Near DOD Installations: Making the Case for Land Use Compatitbility Utility Scale Renewable Energy Development Near DOD Installations: Making the...

  3. Sandia National Laboratories: Scaled Wind Farm Technology (SWIFT...

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

    ClimateECEnergyScaled Wind Farm Technology (SWIFT) Facility Wind Turbine Controller Ground Testing Scaled Wind Farm Technology (SWIFT) Facility Wind Turbine Controller Ground...

  4. AMO Announces Successful Completion of Industrial-Scale Combined...

    Office of Environmental Management (EM)

    Announces Successful Completion of Industrial-Scale Combined Heat, Hydrogen, and Power System AMO Announces Successful Completion of Industrial-Scale Combined Heat, Hydrogen, and...

  5. Process Development and Scale up of Advanced Electrolyte Materials...

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

    Scale up of Advanced Electrolyte Materials Process Development and Scale up of Advanced Electrolyte Materials 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies...

  6. Analysis of FRUITFULL promoter motifs and their influence on valve expression during fruit development

    E-Print Network [OSTI]

    Woods, Jennifer Carol

    2010-01-01T23:59:59.000Z

    motifs and their influence on valve expression during fruitappear WT-like with only valve expression remaining (Fig.motifs and their influence on valve expression during fruit

  7. Modeling Solute Diffusion in the Presence of Pore-Scale Heterogeneity

    SciTech Connect (OSTI)

    FLEMING,SEAN W.; HAGGERTY,ROY

    1999-10-21T23:59:59.000Z

    A range of pore diffusivities, D{sub p}, is implied by the high degree of pore-scale heterogeneity observed in core samples of the Culebra (dolomite) Member of the Rustler formation, NM. Earlier tracer tests in the culebra at the field-scale have confirmed significant heterogeneity in diffusion rate coefficients (the combination of D{sub p} and matrix block size). In this study, expressions for solute diffusion in the presence of multiple simultaneous matrix diffusivities are presented and used to model data from eight laboratory-scale diffusion experiments performed on five Culebra samples. A lognormal distribution of D{sub p} is assumed within each of the lab samples. The estimated standard deviation ({sigma}{sub d}) of In(D{sub p}) within each sample ranges from 0 to 1, with most values lying between 0.5 and 1. The variability over all samples leads to a combined {sigma}{sub d} in the range of 1.0 to 1.2, which appears to be consistent with a best-fit statistical distribution of formation factor measurements for similar Culebra samples. A comparison of the estimation results to other rock properties suggests that, at the lab-scale, the geometric mean of D{sub p} increases with bulk porosity and the quantity of macroscopic features such as vugs and fractures. However, {sigma}{sub d} appears to be determined by variability within such macroscopic features and/or by micropore-scale heterogeneity. In addition, comparison of these experiments to those at larger spatial scales suggests that increasing sample volume results in an increase in {sigma}{sub d}.

  8. Generalized z-scaling in proton-proton collisions at high energies

    E-Print Network [OSTI]

    Zborovský, I

    2006-01-01T23:59:59.000Z

    New generalization of z-scaling in inclusive particle production is proposed. The scaling variable z is fractal measure which depends on kinematical characteristics of the underlying sub-process expressed in terms of the momentum fractions x1 and x2 of the incoming protons. In the generalized approach, the x1 and x2 are functions of the momentum fractions ya and yb of the scattered and recoil constituents carried out by the inclusive particle and recoil object, respectively. The scaling function psi(z) for charged and identified hadrons produced in proton-proton collisions is constructed. The fractal dimensions and heat capacity of the produced medium entering definition of the z are established to obtain energy, angular and multiplicity independence of the psi(z). The scheme allows unique description of data on inclusive cross sections of charged particles, pions, kaons, antiprotons and lambdas at high energies. The obtained results are of interest to use z-scaling as a tool for searching for new physics phe...

  9. Generalized z-scaling in proton-proton collisions at high energies

    E-Print Network [OSTI]

    I. Zborovsky; M. Tokarev

    2006-03-28T23:59:59.000Z

    New generalization of z-scaling in inclusive particle production is proposed. The scaling variable z is fractal measure which depends on kinematical characteristics of the underlying sub-process expressed in terms of the momentum fractions x1 and x2 of the incoming protons. In the generalized approach, the x1 and x2 are functions of the momentum fractions ya and yb of the scattered and recoil constituents carried out by the inclusive particle and recoil object, respectively. The scaling function psi(z) for charged and identified hadrons produced in proton-proton collisions is constructed. The fractal dimensions and heat capacity of the produced medium entering definition of the z are established to obtain energy, angular and multiplicity independence of the psi(z). The scheme allows unique description of data on inclusive cross sections of charged particles, pions, kaons, antiprotons and lambdas at high energies. The obtained results are of interest to use z-scaling as a tool for searching for new physics phenomena of particle production in high transverse momentum and high multiplicity region at proton-proton colliders RHIC and LHC.

  10. Acid treatment removes zinc sulfide scale restriction

    SciTech Connect (OSTI)

    Biggs, K. (Kerr McGee Corp., Lafayette, LA (US)); Allison, D. (Otis Engineering Corp., Lafayette, LA (US)); Ford, W.G.F. (Halliburton Co., Duncan, OK (United States))

    1992-08-31T23:59:59.000Z

    This paper reports that removal of zinc sulfide (ZnS) scale with acid restored an offshore Louisiana well's production to original rates. The zinc sulfide scale was determined to be in the near well bore area. The selected acid had been proven to control iron sulfide (FeS) scales in sour wells without causing harm to surface production equipment, tubing, and other downhole hardware. The successful removal of the blockage re-established previous production rates with a 105% increase in flowing tubing pressure. On production for a number of months, a high rate, high-pressure offshore well was experiencing unusually rapid pressure and rate declines. A small sample of the restrictive material was obtained during the wire line operations. The well was subsequently shut in while a laboratory analysis determined that zinc sulfide was the major component of the obstruction.

  11. Scaling Relationships Based on Scaled Tank Mixing and Transfer Test Results

    SciTech Connect (OSTI)

    Piepel, Gregory F.; Holmes, Aimee E.; Heredia-Langner, Alejandro

    2013-09-18T23:59:59.000Z

    This report documents the statistical analyses performed (by Pacific Northwest National Laboratory for Washington River Protection Solutions) on data from 26 tests conducted using two scaled tanks (43 and 120 inches) in the Small Scale Mixing Demonstration platform. The 26 tests varied several test parameters, including mixer-jet nozzle velocity, base simulant, supernatant viscosity, and capture velocity. For each test, samples were taken pre-transfer and during five batch transfers. The samples were analyzed for the concentrations (lbs/gal slurry) of four primary components in the base simulants (gibbsite, stainless steel, sand, and ZrO2). The statistical analyses including modeling the component concentrations as functions of test parameters using stepwise regression with two different model forms. The resulting models were used in an equivalent performance approach to calculate values of scaling exponents (for a simple geometric scaling relationship) as functions of the parameters in the component concentration models. The resulting models and scaling exponents are displayed in tables and graphically. The sensitivities of component concentrations and scaling exponents to the test parameters are presented graphically. These results will serve as inputs to subsequent work by other researchers to develop scaling relationships that are applicable to full-scale tanks.

  12. Scaling Relationships Based on Scaled Tank Mixing and Transfer Test Results

    SciTech Connect (OSTI)

    Piepel, Gregory F.; Holmes, Aimee E.; Heredia-Langner, Alejandro; Lee, Kearn P.; Kelly, Steven E.

    2014-01-01T23:59:59.000Z

    This report documents the statistical analyses performed (by Pacific Northwest National Laboratory for Washington River Protection Solutions) on data from 26 tests conducted using two scaled tanks (43 and 120 inches) in the Small Scale Mixing Demonstration platform. The 26 tests varied several test parameters, including mixer-jet nozzle velocity, base simulant, supernatant viscosity, and capture velocity. For each test, samples were taken pre-transfer and during five batch transfers. The samples were analyzed for the concentrations (lbs/gal slurry) of four primary components in the base simulants (gibbsite, stainless steel, sand, and ZrO2). The statistical analyses including modeling the component concentrations as functions of test parameters using stepwise regression with two different model forms. The resulting models were used in an equivalent performance approach to calculate values of scaling exponents (for a simple geometric scaling relationship) as functions of the parameters in the component concentration models. The resulting models and scaling exponents are displayed in tables and graphically. The sensitivities of component concentrations and scaling exponents to the test parameters are presented graphically. These results will serve as inputs to subsequent work by other researchers to develop scaling relationships that are applicable to full-scale tanks.

  13. A steady-state L-mode tokamak fusion reactor : large scale and minimum scale

    E-Print Network [OSTI]

    Reed, Mark W. (Mark Wilbert)

    2010-01-01T23:59:59.000Z

    We perform extensive analysis on the physics of L-mode tokamak fusion reactors to identify (1) a favorable parameter space for a large scale steady-state reactor and (2) an operating point for a minimum scale steady-state ...

  14. How important are landownership and the scale(s) of forest management and governance for

    E-Print Network [OSTI]

    ­ Forester interviews (27) ­ Landowner survey and GIS #12;#12;#12;Forest management typology · 22 SitesHow important are landownership and the scale(s) of forest management and governance-matches and resilience · Research questions and methods · A typology of forest management · Constraints and opportunities

  15. Connecting the Physical Properties of Galaxies with the Overdensity and Tidal Shear of the Large-Scale Environment

    E-Print Network [OSTI]

    Jounghun Lee; Cheng Li

    2008-03-12T23:59:59.000Z

    We have examined the correlations between the large-scale environment of galaxies and their physical properties, using a sample of 28,354 nearby galaxies drawn from the Sloan Digital Sky Survey, and the large-scale tidal field reconstructed in real space from the 2Mass Redshift Survey and smoothed over a radius of $\\sim 6 h^{-1}$Mpc. The large-scale environment is expressed in terms of the overdensity, the ellipticity of the shear and the type of the large-scale structure. The physical properties analyzed include $r$-band absolute magnitude $M_{^{0.1}r}$, stellar mass $M_\\ast$, $g-r$ colour, concentration parameter $R_{90}/R_{50}$ and surface stellar mass density $\\mu_\\ast$. Both luminosity and stellar mass are found to be statistically linked to the large-scale environment, regardless of how the environment is quantified. More luminous (massive) galaxies reside preferentially in the regions with higher densities, lower ellipticities and halo-like structures. At fixed luminosity, the large-scale overdensity depends strongly on parameters related to the recent star formation history, that is colour and D(4000), but is almost independent of the structural parameters $R_{90}/R_{50}$ and $\\mu_\\ast$. All the physical properties are statistically linked to the shear of the large-scale environment even when the large-scale density is constrained to a narrow range. This statistical link has been found to be most significant in the quasi-linear regions where the large-scale density approximates to an order of unity, but no longer significant in highly nonlinear regimes with $\\delta_{\\rm LS}\\gg 1$.

  16. Large Scale Periodicity in Redshift Distribution

    E-Print Network [OSTI]

    K. Bajan; M. Biernacka; P. Flin; W. Godlowski; V. Pervushin; A. Zorin

    2004-08-30T23:59:59.000Z

    We review the previous studies of galaxies and quasar redshifts discretisation. We present also the investigations of the large scale periodicity, detected by pencil--beam observations, which revealed 128 (1/h) Mpc period, afterwards confirmed with supercluster studies. We present the theoretical possibility of obtaining such a periodicity using a toy-model. We solved the Kepler problem, i.e. the equation of motion of a particle with null energy moving in the uniform, expanding Universe, decribed by FLRW metrics. It is possible to obtain theoretically the separation between large scale structures similar to the observed one.

  17. Peristaltic pumps work in nano scales

    E-Print Network [OSTI]

    Farnoush Farahpour; Mohammad Reza Ejtehadi

    2013-08-05T23:59:59.000Z

    A design for a pump is suggested which is based on well-known peristaltic pumps. In order to simply describe the operation of the proposed pump, an innovative interpretation of low Reynolds number swimmers is presented and thereafter a similar theoretical model would be suggested to quantify the behavior of the pumps. A coarse-grained molecular dynamic simulation is used to examine the theoretical predictions and measure the efficiency of the pump in nano scales. It is shown that this pump with a modest design is capable of being a good option for transport processes in nano scale.

  18. Dynamic cluster-scaling in DNA

    E-Print Network [OSTI]

    A. Bershadskii

    2010-08-07T23:59:59.000Z

    It is shown that the nucleotide sequences in DNA molecules have cluster-scaling properties (discovered for the first time in turbulent processes: Sreenivasan and Bershadskii, 2006, J. Stat. Phys., 125, 1141-1153.). These properties are relevant to both types of nucleotide pair-bases interactions: hydrogen bonds and stacking interactions. It is shown that taking into account the cluster-scaling properties can help to improve heterogeneous models of the DNA dynamics. Two human genes: BRCA2 and NRXN1, have been considered as examples.

  19. Large-Scale PV Integration Study

    SciTech Connect (OSTI)

    Lu, Shuai; Etingov, Pavel V.; Diao, Ruisheng; Ma, Jian; Samaan, Nader A.; Makarov, Yuri V.; Guo, Xinxin; Hafen, Ryan P.; Jin, Chunlian; Kirkham, Harold; Shlatz, Eugene; Frantzis, Lisa; McClive, Timothy; Karlson, Gregory; Acharya, Dhruv; Ellis, Abraham; Stein, Joshua; Hansen, Clifford; Chadliev, Vladimir; Smart, Michael; Salgo, Richard; Sorensen, Rahn; Allen, Barbara; Idelchik, Boris

    2011-07-29T23:59:59.000Z

    This research effort evaluates the impact of large-scale photovoltaic (PV) and distributed generation (DG) output on NV Energy’s electric grid system in southern Nevada. It analyzes the ability of NV Energy’s generation to accommodate increasing amounts of utility-scale PV and DG, and the resulting cost of integrating variable renewable resources. The study was jointly funded by the United States Department of Energy and NV Energy, and conducted by a project team comprised of industry experts and research scientists from Navigant Consulting Inc., Sandia National Laboratories, Pacific Northwest National Laboratory and NV Energy.

  20. Mineral dissolution kinetics at the pore scale

    SciTech Connect (OSTI)

    Li, L.; Steefel, C.I.; Yang, L.

    2007-05-24T23:59:59.000Z

    Mineral dissolution rates in the field have been reported to be orders of magnitude slower than those measured in the laboratory, an unresolved discrepancy that severely limits our ability to develop scientifically defensible predictive or even interpretive models for many geochemical processes in the earth and environmental sciences. One suggestion links this discrepancy to the role of physical and chemical heterogeneities typically found in subsurface soils and aquifers in producing scale-dependent rates where concentration gradients develop. In this paper, we examine the possibility that scale-dependent mineral dissolution rates can develop even at the single pore and fracture scale, the smallest and most fundamental building block of porous media. To do so, we develop two models to analyze mineral dissolution kinetics at the single pore scale: (1) a Poiseuille Flow model that applies laboratory-measured dissolution kinetics at the pore or fracture wall and couples this to a rigorous treatment of both advective and diffusive transport, and (2) a Well-Mixed Reactor model that assumes complete mixing within the pore, while maintaining the same reactive surface area, average flow rate, and geometry as the Poiseuille Flow model. For a fracture, a 1D Plug Flow Reactor model is considered in addition to quantify the effects of longitudinal versus transverse mixing. The comparison of averaged dissolution rates under various conditions of flow, pore size, and fracture length from the three models is used as a means to quantify the extent to which concentration gradients at the single pore and fracture scale can develop and render rates scale-dependent. Three important minerals that dissolve at widely different rates, calcite, plagioclase, and iron hydroxide, are considered. The modeling indicates that rate discrepancies arise primarily where concentration gradients develop due to comparable rates of reaction and advective transport, and incomplete mixing via molecular diffusion. The magnitude of the reaction rate is important, since it is found that scaling effects (and thus rate discrepancies) are negligible at the single pore and fracture scale for plagioclase and iron hydroxide because of the slow rate at which they dissolve. In the case of calcite, where dissolution rates are rapid, scaling effects can develop at high flow rates from 0.1 cm/s to 1000 cm/s and for fracture lengths less than 1 cm. At more normal flow rates, however, mixing via molecular diffusion is effective in homogenizing the concentration field, thus eliminating any discrepancies between the Poiseuille Flow and the Well-Mixed Reactor model. This suggests that a scale dependence to mineral dissolution rates is unlikely at the single pore or fracture scale under normal geological/hydrologic conditions, implying that the discrepancy between laboratory and field rates must be attributed to other factors.

  1. Electromagnetic Composites at the Compton Scale

    E-Print Network [OSTI]

    Frederick J. Mayer; John R. Reitz

    2011-09-10T23:59:59.000Z

    A new class of electromagnetic composite particles is proposed. The composites are very small (the Compton scale), potentially long-lived, would have unique interactions with atomic and nuclear systems, and, if they exist, could explain a number of otherwise anomalous and conflicting observations in diverse research areas.

  2. The Long Scale Properties of Dense Electrolytes

    E-Print Network [OSTI]

    Mingnan Ding; Yihao Liang; Bing-Sui Lu; Xiangjun Xing

    2015-02-24T23:59:59.000Z

    In this work, we combine phenomenological, numerical, and analytical approaches to explore the long scale statistical properties of dense electrolytes. In the first part, we present a phenomenological framework. We show that the potential of mean force (PMF) for an ion with charge $q$ inside a {\\em weak} background of mean potential $\\phi$ is nonlinear in $q$, and linear but {\\em nonlocal} in $\\phi$. From this, we derive all the long scale properties of the system, including the linear response theory of mean potential, the effective interaction between two ions, and the large scale structures of electric double layers, as well as the renormalized charge of a neutral particle. We also discuss the connection and difference between our theory and the {\\em Dressed Ion Theory} developed by Kjellander and Mitchell in 1990's. In the second part, we discuss the numerical method that is used to extract various renormalized quantities from Monte Carlo simulation data, as well as some numerical results that demonstrate the internal consistency of our theory. In the third part, we develop a systematic analytic formalism for the PMF of an ion in a weak background potential. We apply this formalism to study the primitive model, and calculate all renormalized parameters up to the second order of ion valences. These analytic results agree, both qualitatively and quantitatively, with our large scale MC simulations.

  3. INVESTIGATION Construction of Reference Chromosome-Scale

    E-Print Network [OSTI]

    Douches, David S.

    INVESTIGATION Construction of Reference Chromosome-Scale Pseudomolecules for Potato: Integrating was genotyped with several types of molecular genetic markers to construct a new ~936 cM linkage map comprising and orientation within the pseudo- molecules are closely collinear with independently constructed high density

  4. DUSEL Facility Cooling Water Scaling Issues

    SciTech Connect (OSTI)

    Daily, W D

    2011-04-05T23:59:59.000Z

    Precipitation (crystal growth) in supersaturated solutions is governed by both kenetic and thermodynamic processes. This is an important and evolving field of research, especially for the petroleum industry. There are several types of precipitates including sulfate compounds (ie. barium sulfate) and calcium compounds (ie. calcium carbonate). The chemical makeup of the mine water has relatively large concentrations of sulfate as compared to calcium, so we may expect that sulfate type reactions. The kinetics of calcium sulfate dihydrate (CaSO4 {center_dot} 2H20, gypsum) scale formation on heat exchanger surfaces from aqueous solutions has been studied by a highly reproducible technique. It has been found that gypsum scale formation takes place directly on the surface of the heat exchanger without any bulk or spontaneous precipitation in the reaction cell. The kinetic data also indicate that the rate of scale formation is a function of surface area and the metallurgy of the heat exchanger. As we don't have detailed information about the heat exchanger, we can only infer that this will be an issue for us. Supersaturations of various compounds are affected differently by temperature, pressure and pH. Pressure has only a slight affect on the solubility, whereas temperature is a much more sensitive parameter (Figure 1). The affect of temperature is reversed for calcium carbonate and barium sulfate solubilities. As temperature increases, barium sulfate solubility concentrations increase and scaling decreases. For calcium carbonate, the scaling tendencies increase with increasing temperature. This is all relative, as the temperatures and pressures of the referenced experiments range from 122 to 356 F. Their pressures range from 200 to 4000 psi. Because the cooling water system isn't likely to see pressures above 200 psi, it's unclear if this pressure/scaling relationship will be significant or even apparent. The most common scale minerals found in the oilfield include calcium carbonates (CaCO3, mainly calcite) and alkaline-earth metal sulfates (barite BaSO4, celestite SrSO4, anhydrite CaSO4, hemihydrate CaSO4 1/2H2O, and gypsum CaSO4 2H2O or calcium sulfate). The cause of scaling can be difficult to identify in real oil and gas wells. However, pressure and temperature changes during the flow of fluids are primary reasons for the formation of carbonate scales, because the escape of CO2 and/or H2S gases out of the brine solution, as pressure is lowered, tends to elevate the pH of the brine and result in super-saturation with respect to carbonates. Concerning sulfate scales, the common cause is commingling of different sources of brines either due to breakthrough of injected incompatible waters or mixing of two different brines from different zones of the reservoir formation. A decrease in temperature tends to cause barite to precipitate, opposite of calcite. In addition, pressure drops tend to cause all scale minerals to precipitate due to the pressure dependence of the solubility product. And we can expect that there will be a pressure drop across the heat exchanger. Weather or not this will be offset by the rise in pressure remains to be seen. It's typically left to field testing to prove out. Progress has been made toward the control and treatment of the scale deposits, although most of the reaction mechanisms are still not well understood. Often the most efficient and economic treatment for scale formation is to apply threshold chemical inhibitors. Threshold scale inhibitors are like catalysts and have inhibition efficiency at very low concentrations (commonly less than a few mg/L), far below the stoichiometric concentrations of the crystal lattice ions in solution. There are many chemical classes of inhibitors and even more brands on the market. Based on the water chemistry it is anticipated that there is a high likelihood for sulfate compound precipitation and scaling. This may be dependent on the temperature and pressure, which vary throughout the system. Therefore, various types and amounts of scaling may occur at different

  5. Large-Scale Manifold Learning Ameet Talwalkar

    E-Print Network [OSTI]

    California at Irvine, University of

    Large-Scale Manifold Learning Ameet Talwalkar Courant Institute New York, NY ameet on spectral decom- position, we first analyze two approximate spectral decom- position techniques for large-dimensional embeddings for two large face datasets: CMU-PIE (35 thousand faces) and a web dataset (18 million faces). Our

  6. THE EXTRAGALACTIC DISTANCE SCALE WITHOUT CEPHEIDS. IV

    SciTech Connect (OSTI)

    Hislop, Lachlan; Mould, Jeremy [School of Physics, University of Melbourne, Vic 3010 (Australia); Schmidt, Brian; Bessell, Michael S.; Da Costa, Gary; Francis, Paul; Keller, Stefan; Tisserand, Patrick; Rapoport, Sharon; Casey, Andy, E-mail: jmould@unimelb.edu.au, E-mail: brian@mso.anu.edu.au [Research School of Astronomy and Astrophysics, Australian National University, Canberra (Australia)

    2011-06-01T23:59:59.000Z

    The Cepheid period-luminosity relation is the primary distance indicator used in most determinations of the Hubble constant. The tip of the red giant branch (TRGB) is an alternative basis. Using the new Australian National University (ANU) SkyMapper Telescope, we calibrate the Tully-Fisher relation in the I band. We find that the TRGB and Cepheid distance scales are consistent.

  7. Gowdy phenomenology in scale-invariant variables

    E-Print Network [OSTI]

    Lars Andersson; Henk van Elst; Claes Uggla

    2003-10-30T23:59:59.000Z

    The dynamics of Gowdy vacuum spacetimes is considered in terms of Hubble-normalized scale-invariant variables, using the timelike area temporal gauge. The resulting state space formulation provides for a simple mechanism for the formation of ``false'' and ``true spikes'' in the approach to the singularity, and a geometrical formulation for the local attractor.

  8. Cultural differences on the children's memory scale

    E-Print Network [OSTI]

    Cash, Deborah Dyer

    2009-05-15T23:59:59.000Z

    ) is an assessment instrument used to identify memory and learning deficits and strengths in children ages five through 16. This study investigated the impact of culture and parent educational level (PEL) on student performance on the Children’s Memory Scale using...

  9. Scaling the Web Performance and Availability

    E-Print Network [OSTI]

    Menascé, Daniel A.

    Scaling the Web Performance and Availability of Internet Data Centers Daniel A. Menascé · George, including response time, throughput, and availability, in the context of Web scalability. In most of my past) as a motivating example to discuss how performance and availability are interrelated. IDCs provide the means

  10. Scaling behavior of the adiabatic Dicke model

    SciTech Connect (OSTI)

    Liberti, Giuseppe; Plastina, Francesco [Dipartimento di Fisica, Universita della Calabria, 87036 Arcavacata di Rende (Serbia and Montenegro) (Italy); INFN-Gruppo collegato di Cosenza, 87036 Arcavacata di Rende (Serbia and Montenegro) (Italy); Piperno, Franco [Dipartimento di Fisica, Universita della Calabria, 87036 Arcavacata di Rende (Serbia and Montenegro) (Italy)

    2006-08-15T23:59:59.000Z

    We analyze the quantum phase transition for a set of N two-level systems interacting with a bosonic mode in the adiabatic regime. Through the Born-Oppenheimer approximation, we obtain the finite-size scaling expansion for many physical observables and, in particular, for the entanglement content of the system.

  11. The Spatial Scaling Laws of Compressible Turbulence

    E-Print Network [OSTI]

    Sun, Bohua

    2015-01-01T23:59:59.000Z

    This Letter proposed spatial scaling laws of the density-weighted energy spectrum of compressible flow in terms of dissipation rate, wave number and the Mach number. The study has shown the compressible turbulence energy spectrum does not show the complete similarity, but incomplete similarity as $E(k,Ma)=(C+\\frac{D}{\\ln{Ma}})\

  12. Scaling Analysis of Nanowire Phase Change Memory

    E-Print Network [OSTI]

    Liu, Jie; Anantram, M P

    2013-01-01T23:59:59.000Z

    This letter analyzes the scaling property of nanowire (NW) phase change memory (PCM) using analytic and numerical methods. The scaling scenarios of the three widely-used NW PCM peration schemes (constant electric field, voltage, and current) are studied and compared. It is shown that if the device size is downscaled by a factor of 1/k (k>1), the peration energy (current) will be reduced by more than k3 (k) times, and the operation speed will be increased by k2 times. It is also shown that more than 90% of operation energy is wasted as thermal flux into substrate and electrodes. We predict that, if the wasted thermal flux is effectively reduced by heat confinement technologies, the energy consumed per RESET operation can be decreased from about 1 pJ to less than 100 fJ. It is shown that reducing NW aspect ratio (AR) helps decreasing PCM energy consumption. It is revealed that cross-cell thermal proximity disturbance is counter-intuitively alleviated by scaling, leading to a desirable scaling scenario.

  13. Network Coding for Large Scale Content Distribution

    E-Print Network [OSTI]

    Keinan, Alon

    Network Coding for Large Scale Content Distribution IEEE Infocom 2005 Christos Gkantsidis College propose a new scheme for content distribution of large files that is based on network coding. With network coding, each node of the distribution network is able to generate and transmit encoded blocks

  14. WEBPIE: A WEB-SCALE PARALLEL INFERENCE

    E-Print Network [OSTI]

    WEBPIE: A WEB-SCALE PARALLEL INFERENCE ENGINE Jacopo Urbani, Spyros Kotoulas, Jason Maassen, Niels Amsterdam Monday 10 May 2010 #12;The Semantic Web The Semantic Web is an extension of the current Web where the semantics is defined Basically the idea is to move from Web of Documents (Traditional Web) Web of data

  15. Psychotherapy Computational Psychotherapy Research: Scaling up the

    E-Print Network [OSTI]

    Steyvers, Mark

    research. New methods are required to "scale up" to larger evaluation tasks and "drill down" into the raw­provider interaction contains the treatment's active ingredients. However, the technology for analyzing the content researchable because the intermediate technology required . . . does not exist. I mean auxiliaries and methods

  16. Upscaling geochemical reaction rates using pore-scale network modeling

    E-Print Network [OSTI]

    Peters, Catherine A.

    . To examine the scaling behavior of reaction kinetics, these continuum-scale rates from the network model as a valuable research tool for examining upscaling of geochemical kinetics. The pore-scale model allowsUpscaling geochemical reaction rates using pore-scale network modeling Li Li, Catherine A. Peters

  17. GLOBAL SCALE ATTRIBUTION OF ANTHROPOGENIC AND NATURAL DUST

    E-Print Network [OSTI]

    -scale convective processes producing dust via cold pool (ha- boob) events frequent in monsoon regimes. 1

  18. Multi-Scale Characterization: Evaluation of Microstructural and Superconducting

    E-Print Network [OSTI]

    Multiple Length Scales in 2nd Generation HTS Wire. MultiMulti--Scale Characterization: Evaluation of Across Multiple Length Scales inProperties Across Multiple Length Scales in 22ndnd Generation HTS Wire.Generation HTS Wire. Terry Holesinger and Leonardo Civale Superconductivity Technology Center Los Alamos National

  19. Scaled Experimental Modeling of VHTR Plenum Flows

    SciTech Connect (OSTI)

    ICONE 15

    2007-04-01T23:59:59.000Z

    Abstract The Very High Temperature Reactor (VHTR) is the leading candidate for the Next Generation Nuclear Power (NGNP) Project in the U.S. which has the goal of demonstrating the production of emissions free electricity and hydrogen by 2015. Various scaled heated gas and water flow facilities were investigated for modeling VHTR upper and lower plenum flows during the decay heat portion of a pressurized conduction-cooldown scenario and for modeling thermal mixing and stratification (“thermal striping”) in the lower plenum during normal operation. It was concluded, based on phenomena scaling and instrumentation and other practical considerations, that a heated water flow scale model facility is preferable to a heated gas flow facility and to unheated facilities which use fluids with ranges of density to simulate the density effect of heating. For a heated water flow lower plenum model, both the Richardson numbers and Reynolds numbers may be approximately matched for conduction-cooldown natural circulation conditions. Thermal mixing during normal operation may be simulated but at lower, but still fully turbulent, Reynolds numbers than in the prototype. Natural circulation flows in the upper plenum may also be simulated in a separate heated water flow facility that uses the same plumbing as the lower plenum model. However, Reynolds number scaling distortions will occur at matching Richardson numbers due primarily to the necessity of using a reduced number of channels connected to the plenum than in the prototype (which has approximately 11,000 core channels connected to the upper plenum) in an otherwise geometrically scaled model. Experiments conducted in either or both facilities will meet the objectives of providing benchmark data for the validation of codes proposed for NGNP designs and safety studies, as well as providing a better understanding of the complex flow phenomena in the plenums.

  20. Repressor-mediated tissue-specific gene expression in plants

    DOE Patents [OSTI]

    Meagher, Richard B. (Athens, GA); Balish, Rebecca S. (Oxford, OH); Tehryung, Kim (Athens, GA); McKinney, Elizabeth C. (Athens, GA)

    2009-02-17T23:59:59.000Z

    Plant tissue specific gene expression by way of repressor-operator complexes, has enabled outcomes including, without limitation, male sterility and engineered plants having root-specific gene expression of relevant proteins to clean environmental pollutants from soil and water. A mercury hyperaccumulation strategy requires that mercuric ion reductase coding sequence is strongly expressed. The actin promoter vector, A2pot, engineered to contain bacterial lac operator sequences, directed strong expression in all plant vegetative organs and tissues. In contrast, the expression from the A2pot construct was restricted primarily to root tissues when a modified bacterial repressor (LacIn) was coexpressed from the light-regulated rubisco small subunit promoter in above-ground tissues. Also provided are analogous repressor operator complexes for selective expression in other plant tissues, for example, to produce male sterile plants.

  1. Micrometer-Scale Physical Structure and Microbial Composition of Soil Macroaggregates

    SciTech Connect (OSTI)

    Bailey, Vanessa L.; McCue, Lee Ann; Fansler, Sarah J.; Boyanov, Maxim I.; DeCarlo, F.; Kemner, Kenneth M.; Konopka, Allan

    2013-10-01T23:59:59.000Z

    Soil macroaggregates are discrete, separable units of soil that we hypothesize contain smaller assemblages of microorganisms than bulk soil, and represent a scale potentially consistent with naturally occurring microbial communities. We posed two questions to explore microbial community composition in the context of the macroaggregate: 1) Is there a relationship between macroaggregate physical structure and microbial community composition in individual macroaggregates? And, 2) How similar are the bacterial communities in individual sub-millimeter soil macroaggregates sampled from the same 5-cm core? To address these questions, individual macroaggregates of three arbitrary size classes (250–425, 425–841, and 841–1000 ?m) were sampled from a grassland field. The physical structures of 14 individual macroaggregates were characterized using synchrotron-radiation based transmission X-ray tomography, revealing that a greater proportion of the pore space in the small- and medium-sized macroaggregates is as relatively smaller pores, resulting in greater overall porosity and pore–mineral interface area in these smaller macroaggregates. Microbial community composition was characterized using 16S rRNA pyrosequencing data. Rarefaction analyses indicated that the membership of each macroaggregate was sufficiently sampled with only a few thousand sequences; in addition, the community membership varied widely between macroaggregates and the structure varied from those communities strongly dominated by a few phylotypes to communities that were evenly distributed among several phylotypes. We found no strong relationship of physical structure with community membership; this may be due to the low number of aggregates (10) for which we have both physical and biological data. Our results do support our initial expectation that individual macroaggregate communities were significantly less diverse than bulk soil from the same grassland field site.

  2. Conjecture on the physical implications of the scale anomaly

    SciTech Connect (OSTI)

    Hill, Christopher T.; /Fermilab

    2005-10-01T23:59:59.000Z

    Murray Gell-Mann, after co-inventing QCD, recognized the interplay of the scale anomaly, the renormalization group, and the origin of the strong scale, {Lambda}{sub QCD}. I tell a story, then elaborate this concept, and for the sake of discussion, propose a conjecture that the physical world is scale invariant in the classical, {h_bar}, limit. This principle has implications for the dimensionality of space-time, the cosmological constant, the weak scale, and Planck scale.

  3. ESCO EXPRESSION OF INTEREST IN NOTICE OF OPPORTUNITY | Department...

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

    essionofinterestform.docx More Documents & Publications LETTER TO SUCCESSFUL COMPANY OR ESCO ESCO EXPRESSION OF INTEREST EVALUATION WORKSHEET ESPC ENABLE PRELIMINARY LETTER TO...

  4. Snohomish County PUD No 1- Solar Express Rebate Program

    Broader source: Energy.gov [DOE]

    In March 2009, Snohomish County PUD introduced the Solar Express Program. This program provides rebates to support residential and commercial installations of solar photovoltaics (PV) and solar...

  5. assess expression profiles: Topics by E-print Network

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

    the application of a novel clustering algorithm, Super-Paramagnetic Clustering (SPC) to analysis of gene expression profiles that were generated recently during a study of...

  6. Genomics, Gene Expression and Other Studies in Soybean Rust

    E-Print Network [OSTI]

    Posada-Buitrago, Martha Lucia

    2005-01-01T23:59:59.000Z

    Joint Genome Institute Genomics, Gene Expression and otherRust Martha Lucía Posada-Buitrago Ph.D Genomics DivisionEvolutionary Genomics DOE- Joint Genome Institute Lawrence

  7. acc synthase expression: Topics by E-print Network

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

    corroborate asymmetry of catalysis in F0F1-ATP synthase. Zarrabi, Nawid; Diez, Manuel; Graeber, Peter; Wrachtrup, Joerg; Boersch, Michael 2007-01-01 202 expression? Environments...

  8. acid decarboxylase expression: Topics by E-print Network

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

    the expressions. Anna Sthl; Petra Sundstrm; Kristina Hk 2005-01-01 180 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

  9. acid oxidase expression: Topics by E-print Network

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

    the expressions. Anna Sthl; Petra Sundstrm; Kristina Hk 2005-01-01 252 ANTIBODY PURIFICATION USING CAPRYLIC ACID In mildly acidic conditions, the addition of short-chain...

  10. 1 National Roadmap Committee for Large-Scale Research Facilities the netherlands' roadmap for large-scale research facilities

    E-Print Network [OSTI]

    Horn, David

    #12;1 National Roadmap Committee for Large-Scale Research Facilities the netherlands' roadmap for large-scale research facilities #12;2 National Roadmap Committee for Large-Scale Research Facilities1 by Roselinde Supheert) #12;3 National Roadmap Committee for Large-Scale Research Facilities The Netherlands

  11. Scaling relations and parameters for 1 Angstrom FEL. [Free Electron Laser

    SciTech Connect (OSTI)

    Yu, L.H.

    1990-01-01T23:59:59.000Z

    The Free Electron Laser (FEL) holds great promise as a tunable source of coherent radiation. At the present, the shortest wavelength achieved by an FEL is 2500 {Angstrom}. However, as recent progress in the development of laser driven photocathode electron guns has provided electron beams with lower and lower emittance and higher and higher current, it has become clear that FEL's with much shorter wavelength can be achieved. An FEL operating below 1000 {Angstrom} will yield important advances in fields such as photochemistry, atomic and molecular physics. An FEL with wavelength of 30 {Angstrom} will bring new era to the development of holography of living cells. And, if an FEL with 1 {Angstrom} wavelength can be developed, its impact on solid physics, molecular biology, and many other fields can hardly be exaggerated. We first describe our electron distribution model: a waterbag transverse phase space distribution and a Gaussian energy distribution. This model is widely used in simulations, and is rather close to reality. Then we describe the dispersion relation derived from the Vlasov-Maxwell equations, and its solution, expressed in scaled form. We compare the variational approximation with several simulation codes. Then we compare with exact results which we have derived for a parallel electron beam with finite beam size and energy spread. We explain the scaling relations, and give examples to show how system parameters scale when the FEL wavelength is reduced. Then, applying these scaling relations, we derive a list of preliminary system parameters for a 1 {Angstrom} FEL. As an example, we apply our analytical calculation to optimize one set of parameters derived from the scaling relations. Finally, as a conclusion we discuss the implication of the list of parameters for a 1{Angstrom} FEL. 20 refs., 4 figs.

  12. Fractal large-scale structure from a stochastic scaling law model

    E-Print Network [OSTI]

    S. Capozziello; S. Funkhouser

    2009-03-27T23:59:59.000Z

    A stochastic model relating the parameters of astrophysical structures to the parameters of their granular components is applied to the formation of hierarchical, large-scale structures from galaxies assumed as point-like objects. If the density profile of galaxies on a given scale is described by a power law then the stochastic model leads naturally to a mass function that is proportional to the square of the distance from an occupied point, which corresponds to a two-point correlation function that is inversely proportional to the distance. This result is consistent with observations indicating that galaxies are, on the largest scales, characterized by a fractal distribution with a dimension of order 2 and well-fit with transition to homogeneity at cosmological scales.

  13. Economic Investigation of Community-Scale Versus Building Scale Net-Zero Energy

    SciTech Connect (OSTI)

    Fernandez, Nicholas; Katipamula, Srinivas; Brambley, Michael R.; Reddy, T. A.

    2009-12-31T23:59:59.000Z

    The study presented in this report examines issues concerning whether achieving net-zero energy performance at the community scale provides economic and potentially overall efficiency advantages over strategies focused on individual buildings.

  14. Comment on ``Power law catchment-scale recessions arising from heterogeneous linear small-scale dynamics''

    E-Print Network [OSTI]

    Szilagyi, Jozsef

    -scale dynamics'' by C. J. Harman, M. Sivapalan, and P. Kumar Jozsef Szilagyi1,2 Received 23 June 2009; revised 9 September 2009; accepted 20 October 2009; published 11 December 2009. Citation: Szilagyi, J. (2009), Comment

  15. Scaling of chaos in strongly nonlinear lattices

    SciTech Connect (OSTI)

    Mulansky, Mario, E-mail: mulansky@pks.mpg.de [Department of Physics and Astronomy, Potsdam University, Karl-Liebknecht-Str. 24, D-14476 Potsdam-Golm (Germany) [Department of Physics and Astronomy, Potsdam University, Karl-Liebknecht-Str. 24, D-14476 Potsdam-Golm (Germany); Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, D-01187 Dresden (Germany); Institut für Theoretische Physik, TU Dresden, Zellescher Weg 17, D-01069 Dresden (Germany)

    2014-06-15T23:59:59.000Z

    Although it is now understood that chaos in complex classical systems is the foundation of thermodynamic behavior, the detailed relations between the microscopic properties of the chaotic dynamics and the macroscopic thermodynamic observations still remain mostly in the dark. In this work, we numerically analyze the probability of chaos in strongly nonlinear Hamiltonian systems and find different scaling properties depending on the nonlinear structure of the model. We argue that these different scaling laws of chaos have definite consequences for the macroscopic diffusive behavior, as chaos is the microscopic mechanism of diffusion. This is compared with previous results on chaotic diffusion [M. Mulansky and A. Pikovsky, New J. Phys. 15, 053015 (2013)], and a relation between microscopic chaos and macroscopic diffusion is established.

  16. Inertia and scaling in deterministic lateral displacement

    E-Print Network [OSTI]

    Drazer, Timothy J Bowman German

    2014-01-01T23:59:59.000Z

    The ability to separate and analyze chemical species with high resolution, sensitivity, and throughput is central to the development of microfluidics systems. Deterministic lateral displacement (DLD) is a continuous separation method based on the transport of species through an array of obstacles. In the case of force-driven DLD (f-DLD), size-based separation can be modelled effectively using a simple particle-obstacle collision model. We use a macroscopic model to study f-DLD and demonstrate, via a simple scaling, that the method is indeed predominantly a size-based phenomenon at low Reynolds numbers. More importantly, we demonstrate that inertia effects provide the additional capability to separate same size particles but of different densities and could enhance separation at high throughput conditions. We also show that a direct conversion of macroscopic results to microfluidic settings is possible with a simple scaling based on the size of the obstacles that results in a universal curve.

  17. Neutrino symmetries from high to low scales

    E-Print Network [OSTI]

    Probir Roy

    2007-06-18T23:59:59.000Z

    Proposed symmetry relations, e.g., quark-lepton complementarity (QLC) or tribimaximal mixing (TBM), need to be imposed at a high scale $\\wedge \\sim 10^{12}$ GeV characterising the large masses of right-handed neutrinos required to implement the seesaw mechanism. RG evolution down to the laboratory scale $\\lambda \\sim 10^3$ GeV, generically prone to spoil these relations and their predicted neutrino mixing patterns, can be made to preserve them by appropriately constraining the Majorana phases $\\alpha_{2,3}$. This is explicitly demonstrated in the MSSM for two versions of QLC and two versions of TBM. A preference for $\\alpha_2 \\simeq \\pi$ (i.e. $m_1 \\simeq - m_2$) emerges in each case. Discrimination among the four cases is shown to be possible by future measurements of $\\theta_{13}$.

  18. Scaling Turbo Boost to a 1000 cores

    E-Print Network [OSTI]

    S, Ananth Narayan; Fedorova, Alexandra

    2010-01-01T23:59:59.000Z

    The Intel Core i7 processor code named Nehalem provides a feature named Turbo Boost which opportunistically varies the frequencies of the processor's cores. The frequency of a core is determined by core temperature, the number of active cores, the estimated power consumption, the estimated current consumption, and operating system frequency scaling requests. For a chip multi-processor(CMP) that has a small number of physical cores and a small set of performance states, deciding the Turbo Boost frequency to use on a given core might not be difficult. However, we do not know the complexity of this decision making process in the context of a large number of cores, scaling to the 100s, as predicted by researchers in the field.

  19. Inflation in no-scale supergravity

    E-Print Network [OSTI]

    Lahanas, A B

    2015-01-01T23:59:59.000Z

    $R+R^2$ Supergravity is known to be equivalent to standard Supergravity coupled to two chiral supermultiples with a no-scale K\\"ahler potential. Within this framework, that can accomodate vanishing vacuum energy and spontaneous supersymmetry breaking, we consider modifications of the associated superpotential and study the resulting models, which, viewed as generalizations of the Starobinsky model, for a range of the superpotential parameters, describe viable single-field slow-roll inflation.

  20. Nonlinear Quantum Mechanics at the Planck Scale

    E-Print Network [OSTI]

    George Svetlichny

    2004-10-27T23:59:59.000Z

    I argue that the linearity of quantum mechanics is an emergent feature at the Planck scale, along with the manifold structure of space-time. In this regime the usual causality violation objections to nonlinearity do not apply, and nonlinear effects can be of comparable magnitude to the linear ones and still be highly suppressed at low energies. This can offer alternative approaches to quantum gravity and to the evolution of the early universe.