R. Casana; M. M. Ferreira Jr; R. V. Maluf; F. E. P. dos Santos
2013-09-07T23:59:59.000Z
In this letter we show for the first time that the usual CPT-even gauge term of the standard model extension (SME) can be radiatively generated, in a gauge invariant level, in the context of a modified QED endowed with a dimension-five nonminimal coupling term recently proposed in the literature. As a consequence, the existing upper bounds on the coefficients of the tensor $(K_{F}) $ can be used improve the bounds on the magnitude of the nonminimal coupling, $\\lambda(K_{F}),$ by the factors $10^{5}$ or $10^{25}.$ The nonminimal coupling also generates higher-order derivative contributions to the gauge field effective action quadratic terms.
Casana, R; Maluf, R V; Santos, F E P dos
2013-01-01T23:59:59.000Z
In this letter we show for the first time that the usual CPT-even gauge term of the standard model extension (SME) can be radiatively generated, \\textbf{}in a gauge invariant level, in the context of a modified QED endowed with a dimension-five nonminimal coupling term recently proposed in the literature. As a consequence, the existing upper bounds on the coefficients of the tensor $(K_{F}) $ can be used improve the bounds on the magnitude of the nonminimal coupling, $\\lambda(K_{F}),$ by the factors $10^{5}$ or $10^{25}.$ The nonminimal coupling also generates higher-order derivative contributions to the gauge field effective action quadratic terms.
Seismic Safety Margins Research Program. Phase I. Interim definition of terms
Smith, P.D.; Dong, R.G.
1980-12-19T23:59:59.000Z
This report documents interim definitions of terms in the Seismic Safety Margins Research Program (SSMRP). Intent is to establish a common-based terminology integral to the probabilistic methods that predict more realistically the behavior of nuclear power plants during an earthquake. These definitions are a response to a request by the Nuclear Regulatory Commission Advisory Committee on Reactor Safeguards at its meeting held November 15-16, 1979.
Uncertainties associated with the definition of a hydrologic source term for the Nevada Test Site
Smith, D.K.; Esser, B.K. [Lawrence Livermore National Lab., CA (United States); Thompson, J.L. [Los Alamos National Lab., NM (United States)
1995-05-01T23:59:59.000Z
The U.S. Department of Energy, Nevada Operations Office (DOE/NV) Environmental Restoration Division is seeking to evaluate groundwater contamination resulting from 30 years of underground nuclear testing at the Nevada Test Site (NTS). This evaluation requires knowledge about what radioactive materials are in the groundwater and how they are transported through the underground environment. This information coupled with models of groundwater flow (flow paths and flow rates) will enable predictions of the arrival of each radionuclide at a selected receptor site. Risk assessment models will then be used to calculate the expected environmental and human doses. The accuracy of our predictions depends on the validity of our hydrologic and risk assessment models and on the quality of the data for radionuclide concentrations in ground water at each underground nuclear test site. This paper summarizes what we currently know about radioactive material in NTS groundwater and suggests how we can best use our limited knowledge to proceed with initial modeling efforts. The amount of a radionuclide available for transport in groundwater at the site of an underground nuclear test is called the hydrologic source term. The radiologic source term is the total amount of residual radionuclides remaining after an underground nuclear test. The hydrologic source term is smaller than the radiologic source term because some or most of the radionuclide residual cannot be transported by groundwater. The radiologic source term has been determined for each of the underground nuclear tests fired at the NTS; however, the hydrologic source term has been estimated from measurements at only a few sites.
Definition of Total Energy budget equation in terms of moist-air Enthalpy surface flux
Marquet, Pascal
2015-01-01T23:59:59.000Z
Uncertainty exists concerning the proper formulation of surface heat fluxes, namely the sum of "sensible" and "latent" heat fluxes, and in fact concerning these two fluxes if they are considered as separate fluxes. In fact, eddy flux of moist-air energy must be defined as the eddy transfer of moist-air specific enthalpy ($\\overline{w' h'}$), where the specific enthalpy ($h$) is equal to the internal energy of moist air plus the pressure divided by the density (namely $h = e_{\\rm int} + p/\\rho$). The fundamental issue is to compute this local (specific) moist-air enthalpy ($h$), and in particular to determine absolute reference value of enthalpies for dry air and water vapour $(h_d)_{\\rm ref}$ and $(h_v)_{\\rm ref}$. New results shown in Marquet (QJRMS 2015, arXiv:1401.3125) are based on the Third-law of Thermodynamics and can allow these computations. In this note, this approach is taken to show that Third-law based values of moist-air enthalpy fluxes is the sum of two terms. These two terms are similar to wha...
Caudell, Jimmy J.; Schaner, Philip E. [Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL (United States); Desmond, Renee A. [Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL (United States); Meredith, Ruby F.; Spencer, Sharon A. [Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL (United States); Bonner, James A., E-mail: jabonner@uabmc.ed [Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL (United States)
2010-02-01T23:59:59.000Z
Purpose: Intensification of radiotherapy and chemotherapy for head-and-neck cancer may lead to increased rates of dysphagia. Dosimetric predictors of objective findings of long-term dysphagia were sought. Methods and Materials: From an institutional database, 83 patients were identified who underwent definitive intensity-modulated radiotherapy for squamous cell carcinoma of the head and neck, after exclusion of those who were treated for a second or recurrent head-and-neck primary lesion, had locoregional recurrence at any time, had less than 12 months of follow-up, or had postoperative radiotherapy. Dosimetric parameters were analyzed relative to three objective endpoints as a surrogate for severe long-term dysphagia: percutaneous endoscopic gastrostomy (PEG) tube dependence at 12 months, aspiration on modified barium swallow, or pharyngoesophageal stricture requiring dilation. Results: Mean dose greater than 41 Gy and volume receiving 60 Gy (V{sub 60}) greater than 24% to the larynx were significantly associated with PEG tube dependence and aspiration. V{sub 60} greater than 12% to the inferior pharyngeal constrictor was also significantly associated with increased PEG tube dependence and aspiration. V{sub 65} greater than 33% to the superior pharyngeal constrictor or greater than 75% to the middle pharyngeal constrictor was associated with pharyngoesophageal stricture requiring dilation. Conclusions: Doses to the larynx and pharyngeal constrictors predicted long-term swallowing complications, even when controlled for other clinical factors. The addition of these structures to intensity-modulated radiotherapy optimization may reduce the incidence of dysphagia, although cautious clinical validation is necessary.
Definitions of Marketing Terms
McCorkle, Dean; Dhuyvetter, Kevin C.
2008-12-05T23:59:59.000Z
Extension Service.. Dean McCorkle and Kevin Dhuyvetter* Cash Market Cash marketing basis ? the difference be- tween a cash price and a futures price of a par- ticular commodity on a given futures exchange. It is calculated as: Basis = cash price - futures... price. Basis can be positive or negative. Basis contract ? an agreement between a producer and a grain elevator (or feedlot) that specifi es the cash price upon future delivery as a fi xed amount in relation to the futures price (above or below...
2010 Manufacturing Energy and Carbon Footprints: Definitions...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Definitions and Assumptions 2010 Manufacturing Energy and Carbon Footprints: Definitions and Assumptions This 13-page document defines key terms and details assumptions and...
Communication Definitions... general definition
Jones, Ian L.
Communication Definitions... general definition "the process of conveying information from a sender to a receiver with the use of a medium in which the communicated information is understood the same way by both sender and receiver" (Wikipedia)! Biological communication Action by one organism (individual
Crop Insurance Terms and Definitions
Stokes, Kenneth; Waller, Mark L.; Outlaw, Joe; Barnaby, G. A. Art
2008-10-17T23:59:59.000Z
A&M System; and Extension Agricultural Economist, Kansas State University Agricultural Experiment Station and Cooperative Extension Service. The crop insurance industry is providing more and more risk management tools to help producers deal... for the insured crop. Coverage Levels and Price Elections Actual Production History (APH). A process used to determine production guarantees. Additional coverage. A level of coverage greater than catastrophic risk protection. Administrative fee. An amount...
Fractal Dimension for Fractal Structures: A Hausdorff Approach
M. A. S醤chez-Granero; Manuel Fern醤dez-Mart韓ez
2010-07-22T23:59:59.000Z
This paper provides a new model to compute the fractal dimension of a subset on a generalized-fractal space. Recall that fractal structures are a perfect place where a new definition of fractal dimension can be given, so we perform a suitable discretization of the Hausdorff theory of fractal dimension. We also find some connections between our definition and the classical ones and also with fractal dimensions I & II (see http://arxiv.org/submit/0080421/pdf). Therefore, we generalize them and obtain an easy method in order to calculate the fractal dimension of strict self-similar sets which are not required to verify the open set condition.
GLOSSARY FISH AND WILDLIFE PROGRAM G-1 December 14, 1994 GLOSSARY The definitions in this list have fish in the water of a particular stream before their release into that stream. Act -- See Northwest of different elements of the system are better understood. adult equivalent population The number of fish
Octupolar order in two dimensions
Epifanio G. Virga
2015-03-16T23:59:59.000Z
Octupolar order is described in two space dimensions in terms of the maxima (and conjugated minima) of the probability density associated with a third-rank, fully symmetric and traceless tensor. Such a representation is shown to be equivalent to diagonalizing the relevant third-rank tensor, an equivalence which however is only valid in the two-dimensional case.
DEFORMATION-BASED NONLINEAR DIMENSION REDUCTION: APPLICATIONS TO NUCLEAR MORPHOMETRY
Gordon, Geoffrey J.
DEFORMATION-BASED NONLINEAR DIMENSION REDUCTION: APPLICATIONS TO NUCLEAR MORPHOMETRY Gustavo K, contrary to common intuition, the most likely nuclear shape configuration is not symmetric. Index Terms-- Nuclear shape analysis, nonlinear, dimension reduction, image registration. 1. INTRODUCTION Under
Anirban Kundu
2008-06-24T23:59:59.000Z
This is a brief discussion of the following features of the Universal Extra Dimension (UED) model: (i) Formulation, (ii) Indirect bounds, (iii) Collider search and the Inverse Problem, (iv) Astrophysical bounds, and (v) UED with two extra dimensions.
FRACTAL DIMENSION ESTIMATION: EMPIRICAL MODE DECOMPOSITION VERSUS WAVELETS
Gon莽alves, Paulo
FRACTAL DIMENSION ESTIMATION: EMPIRICAL MODE DECOMPOSITION VERSUS WAVELETS Paulo Gonc赂alves INRIA, France. {firstname.lastname}@ens-lyon.fr ABSTRACT We address the problem of fractal dimension estimation motions. Index Terms-- fractal dimension, regularity exponents, wavelet transform, EMD 1. MOTIVATION
Industry Terms and Definitions | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place: Eden Prairie, MinnesotaIndianapolisDevelopingIRL Jumpand
Gravity, Dimension, Equilibrium, & Thermodynamics
Jerome Perez
2006-03-30T23:59:59.000Z
Is it actually possible to interpret gravitation as space's property in a pure classical way. Then, we note that extended self-gravitating system equilibrium depends directly on the number of dimension of the space in which it evolves. Given those precisions, we review the principal thermodynamical knowledge in the context of classical gravity with arbitrary dimension of space. Stability analyses for bounded 3D systems, namely the Antonov instability paradigm, are then rapproched to some amazing properties of globular clusters and galaxies.
Boisvert, Jeff
to be ~3000BC in the Iberian Pyrite Belt 颅 Effects included heavy metal pollution in rivers, increased erosion includes ARD, NMD and SD 路 A final term is metal leaching (ML) as these waters often have high levels of metals Occurrence 路 Can occur naturally 路 Weathering (oxidization) of pyrite 路 Mining accelerates
Dimension of physical systems, information processing, and thermodynamics
Nicolas Brunner; Marc Kaplan; Anthony Leverrier; Paul Skrzypczyk
2014-12-18T23:59:59.000Z
We ask how quantum theory compares to more general physical theories from the point of view of dimension. To do so, we first give two model independent definition of the dimension of physical systems, based on measurements and on the capacity of storing information. While both definitions are equivalent in classical and quantum mechanics, they are in general different in generalized probabilistic theories. We discuss in detail the case of a theory known as 'boxworld', and show that such a theory features systems with a dimension mismatch. This dimension mismatch can be made arbitrarily large by using an amplification procedure. Furthermore, we show that the dimension mismatch of boxworld has strong consequences on its power for performing information-theoretic tasks, leading to the collapse of communication complexity and to the violation of information causality. Finally, we discuss the consequences of a dimension mismatch from the perspective of thermodynamics, and ask whether this effect could break Landauer's erasure principle and thus the second law.
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
Big Mysteries: Extra Dimensions
Lincoln, Don
2014-08-07T23:59:59.000Z
The weakness of gravity compared to the other subatomic forces is a real mystery. While nobody knows the answer, one credible solution is that gravity has access to more spatial dimensions than the other three known forces. In this video, Fermilab's Dr. Don Lincoln describes this idea, with the help of some very urbane characters.
Big Mysteries: Extra Dimensions
Lincoln, Don
2014-06-10T23:59:59.000Z
The weakness of gravity compared to the other subatomic forces is a real mystery. While nobody knows the answer, one credible solution is that gravity has access to more spatial dimensions than the other three known forces. In this video, Fermilab's Dr. Don Lincoln describes this idea, with the help of some very urbane characters.
Olgyay, Victor W. (Victor Wayne)
1986-01-01T23:59:59.000Z
Home is an elusive concept. In one manner it is highly specific and individual in its definition, and in other aspects it is ubiquitous, present in our every act. In this thesis I explore several possible definitions of ...
Web Style Guide Fixed Dimension
Web Style Guide KEY: Fixed Dimension: Variable Dimension: V1.1, SEPTEMBER 2010 #12;Page 2 Table PAGE NEWS & EVENTS PAGE Fonts & Colors FONTS COLORS Web Writing Guidelines WEB WRITING GUIDELINES Web
Geometrically induced magnetic catalysis and critical dimensions
Antonino Flachi; Kenji Fukushima; Vincenzo Vitagliano
2015-02-21T23:59:59.000Z
We discuss the combined effect of magnetic fields and geometry in interacting fermionic systems. At leading order in the heat-kernel expansion, the infrared singularity (that in flat space leads to the magnetic catalysis) is regulated by the chiral gap effect and the catalysis is deactivated by effect of the curvature. We discover that an infrared singularity may reappear from higher-order terms in the heat kernel expansion leading to a novel form of geometrically induced magnetic catalysis (absent in flat space). The dynamical mass squared is then modified not only due to the chiral gap effect by an amount proportional to the curvature, but also by a magnetic shift $\\propto (4-D)eB$ where $D$ represents the number of space-time dimensions. We argue that $D=4$ is a critical dimension across which the behaviour of the magnetic shift changes qualitatively.
Geometrically induced magnetic catalysis and critical dimensions
Flachi, Antonino; Vitagliano, Vincenzo
2015-01-01T23:59:59.000Z
We discuss the combined effect of magnetic fields and geometry in interacting fermionic systems. At leading order in the heat-kernel expansion, the infrared singularity (that in flat space leads to the magnetic catalysis) is regulated by the chiral gap effect and the catalysis is deactivated by effect of the curvature. We discover that an infrared singularity may reappear from higher-order terms in the heat kernel expansion leading to a novel form of geometrically induced magnetic catalysis (absent in flat space). The dynamical mass squared is then modified not only due to the chiral gap effect by an amount proportional to the curvature, but also by a magnetic shift $\\propto (4-D)eB$ where $D$ represents the number of space-time dimensions. We argue that $D=4$ is a critical dimension across which the behaviour of the magnetic shift changes qualitatively.
Boyer, Edmond
by the European Association of Remote Sensing Laboratories (EARSeL) and the French Society for Electricity of Remote Sensing Laboratories (EARSeL) and the French Society for Electricity and Electronics (SEE, French and Electronics (SEE, French affiliate of the IEEE), devoted most of its efforts to establish a lexicon or terms
Reduced-dimension transistors: Reduced-dimension transistors
Pulfrey, David L.
1 Reduced-dimension transistors: the HEMT LECTURE 20 路 Reduced-dimension transistors 路 HEMT 路 2-D;8 For a finite well 路 Wavefunction not completely confined 路 Use undoped spacer #12;9 Employment of a spacer scattering (碌 ). 路 Electrons and donors separated no I I scattering, i.e., 碌 路 Undoped spacer also helps
慚odel or 憈ool? New definitions for translational research
Sive, Hazel
The term 憁odel often describes non-human biological systems that are used to obtain a better understanding of human disorders. According to the most stringent definition, an animal 憁odel would display exactly the same ...
String universality in ten dimensions
Allan Adams; Oliver DeWolfe; Washington Taylor
2014-10-29T23:59:59.000Z
We show that the ${\\cal N}=1$ supergravity theories in ten dimensions with gauge groups $U(1)^{496}$ and $E_8 \\times U(1)^{248}$ are not consistent quantum theories. Cancellation of anomalies cannot be made compatible with supersymmetry and abelian gauge invariance. Thus, in ten dimensions all supersymmetric theories of gravity without known inconsistencies are realized in string theory.
Wess-Zumino Terms for Relativistic Fluids, Superfluids, Solids, and Supersolids
Luca V. Delacr閠az; Alberto Nicolis; Riccardo Penco; Rachel A. Rosen
2015-02-18T23:59:59.000Z
We use the coset construction of low-energy effective actions to systematically derive Wess-Zumino (WZ) terms for fluid and isotropic solid systems in two, three and four spacetime dimensions. We recover the known WZ term for fluids in two dimensions as well as the very recently found WZ term for fluids in three dimensions. We find two new WZ terms for supersolids that have not previously appeared in the literature. In addition, by relaxing certain assumptions about the symmetry group of fluids we find a number of new WZ terms for fluids with and without charge, in all dimensions. We find no WZ terms for solids and superfluids.
Low-Income Weatherization: The Human Dimension
Broader source: Energy.gov [DOE]
This presentation focuses on how the human dimension saves energy within low-income weatherization programs.
3 Library Regulations Definitions
Mottram, Nigel
3 Library Regulations Definitions In Regulation 3: 'Library' means the University Library as defined in Regulation 3.1; 'Library staff' means the staff of the University Library; 'Librarian' means the University Librarian and Head of Information Resources Directorate or nominee; `Library Committee' means
Behmer, Spencer T.
Definitions 路 Numbered Space 颅 a single space marked with a number and reserved for a single permit 24/7 路 Unnumbered Space 颅 a space which can be used by any customer allowed to park in that lot. High Low Average Question 4: If I buy a staff permit for an UNNUMBERED* space in a non-gated surface
Sheridan, Jennifer
Major; People's Institute for Survival and Beyond, New Orleans 2. Power is the ability to define reality and to convince other people that it is their definition. ~ Dr. Wade Nobles 3. Power is the capacity to act. 4 different cultures. [JL] RACISM Racism is race prejudice plus power [See Racist]. People's Institute calls
Boisvert, Jeff
Times) 颅 "The price of oil and the pace of freedom always move in opposite directions in oil01-1 路 Definition 路 Is it real? 路 Consequences MinE 422: Peak Oil Background 路 How an oil field works ... decline curve #12;01-2 Peak Oil, the Hubbert Peak 路 Consider an amalgamation of many wells
Astronomy and the Fifth Dimension
Paul S. Wesson
2013-01-01T23:59:59.000Z
Astronomy is a precise and relatively simple science because objects accelerate in a gravitational field at the same rate, irrespective of their composition. Galileo knew this, and Einstein took it as the basis for general relativity. Surprisingly, it is also a consequence of new theories that use a fifth dimension.
Resource dimensioning through buffer sampling
Boucherie, Richard J.
, theoretical dimensioning formulae that estimate the required capacity C as a function of the input traffic the buffer content, estimates the buffer content distribution, and `inverts' this to the variance. We of capacity that should be added, advanced modeling and performance techniques are required. These predictions
Higher dimensions Max flow min cut in higher dimensions
Duval, Art
-negative number, and direction) to each edge such that: net flow at each vertex, except S and T, is zero; and |xe, and direction) to each edge such that: net flow at each vertex is zero; and |xe| e. Value of flow is x0. Duval: net flow at each vertex is zero; and |xe| e. Value of flow is x0. Definition Cut is minimal set
Radiation Related Terms Basic Terms
Vallino, Joseph J.
Radiation Related Terms Basic Terms Radiation Radiation is energy in transit in the form of high not carry enough energy to separate molecules or remove electrons from atoms. Ionizing radiation Ionizing radiation is radiation with enough energy so that during an interaction with an atom, it can remove tightly
Constraints on extra dimensions from precision molecular spectroscopy
Salumbides, E J; Gato-Rivera, B; Ubachs, W
2015-01-01T23:59:59.000Z
Accurate investigations of quantum level energies in molecular systems are shown to provide a test ground to constrain the size of compactified extra dimensions. This is made possible by the recent progress in precision metrology with ultrastable lasers on energy levels in neutral molecular hydrogen (H$_2$, HD and D$_2$) and the molecular hydrogen ions (H$_2^+$, HD$^+$ and D$_2^+$). Comparisons between experiment and quantum electrodynamics calculations for these molecular systems can be interpreted in terms of probing large extra dimensions, under which conditions gravity will become much stronger. Molecules are a probe of space-time geometry at typical distances where chemical bonds are effective, i.e. at length scales of an \\AA. Constraints on compactification radii for extra dimensions are derived within the Arkani-Hamed-Dimopoulos-Dvali framework, while constraints for curvature or brane separation are derived within the Randall-Sundrum framework. Based on the molecular spectroscopy of D$_2$ molecules an...
Terms, Definitions and Concepts Related to Critical Infrastructures, Chokepoints & Services
Roe, Emery
2010-01-01T23:59:59.000Z
cat抯 cradle of interconnectivity everything is potentiallythe cat抯 cradle of interconnectivity remains, but framed by
Definitions: Types of Commissioning
Martinez, J. T.
2014-01-01T23:59:59.000Z
Workshop on the Continuous Commissioning Process Joseph T. Martinez, PCC Carlos Yagua, PE Hiroko Masuda, Juan-Carlos Baltazar, PhD, PE Ahmet Ugursal, PhD Clean Air Through Energy Efficiency (CATEE) Conference, Dallas, Texas. November 18, 2014... 5. Continuous Commissioning Measures 6. Measurement and Verification ESL-KT-14-11-41 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Definitions: Types of Commissioning Joseph T. Martinez, PCC Carlos Yagua, PE Hiroko...
GL(n,R) Wormholes and Waves in Diverse Dimensions
Zhao-Long Wang; Jianwei Mei; H. Lu
2009-03-29T23:59:59.000Z
We construct the most general Ricci-flat metrics in (D+n) dimensions that preserve the R^{1,n-1}\\times SO(D) isometry. The equations of motion are governed by the system of a GL(n,\\R)/SO(1,n-1) scalar coset coupled to D-dimensional gravity. Among the solutions, we find a large class of smooth Lorentzian wormholes that connect two asymptotic flat spacetimes. In addition, we obtain new vacuum tachyonic wave solutions in D\\ge 4 dimensions, which fit the general definition of pp-waves in that there exists a covariantly constant null vector. The momenta of the tachyon waves are larger than their ADM masses. The world-volume of the tachyon wave is R^{1,2}, instead of R^{1,1} for the usual vacuum pp-wave. We show that the tachyon wave solutions admit no Killing spinors, except in D=4, in which case it preserves half of the supersymmetry. We also obtain a general class of p-brane wormhole and tachyon wave solutions where the R^{1,n-1} part of the spacetime lies in the the world-volume of the p-branes. These include examples of M-branes and D3-brane. Furthermore, we obtain AdS tachyon waves in D\\ge 4 dimensions.
Dark Energy From Fifth Dimension
H. Alavirad; N. Riazi
2008-01-21T23:59:59.000Z
Observational evidence for the existence of dark energy is strong. Here we suggest a model which is based on a modified gravitational theory in 5D and interpret the 5th dimension as a manifestation of dark energy in the 4D observable universe. We also obtain an equation of state parameter which varies with time. Finally, we match our model with observations by choosing the free parameters of the model.
Accelerating Universe from Extra Spatial Dimension
S. Chatterjee; A. Banerjee; Y. Z. Zhang
2005-09-28T23:59:59.000Z
We present a simple higher dimensional FRW type of model where the acceleration is apparently caused by the presence of the extra dimensions. Assuming an ansatz in the form of the deceleration parameter we get a class of solutions some of which shows the desirable feature of dimensional reduction as well as reasonably good physical properties of matter. Interestingly we do not have to invoke an extraneous scalar field or a cosmological constant to account for this acceleration. One argues that the terms containing the higher dimensional metric coefficients produces an extra negative pressure that apparently drives the inflation of the 4D space with an accelerating phase. It is further found that in line with the physical requirements our model admits of a decelerating phase in the early era along with an accelerating phase at present.Further the models asymptotically mimic a steady state type of universe although it starts from a big type of singularity. Correspondence to Wesson's induced matter theory is also briefly discussed and in line with it it is argued that the terms containing the higher dimensional metric coefficients apparently creates a negative pressure which drives the inflation of the 3-space with an accelerating phase.
DEPARTMENT OF HUMAN DIMENSIONS OF NATURAL RESOURCES
CODE DEPARTMENT OF HUMAN DIMENSIONS OF NATURAL RESOURCES College of Natural Resources Colorado;3 DEPARTMENT OF NATURAL HUMAN DIMENSIONS OF NATURAL RESOURCES CODE ARTICLE I. GOAL AND OBJECTIVES A. DEPARTMENT MISSION The mission of the Department of Human Dimensions of Natural Resources is to contribute
Sixth Dimension | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant ofRichardtonManagement, 2009) | OpenSixth Dimension Jump to:
Fractal Dimensions of a Weakly Clustered Distribution and the Scale of Homogeneity
J. S. Bagla; Jaswant Yadav; T. R. Seshadri
2008-08-04T23:59:59.000Z
Homogeneity and isotropy of the universe at sufficiently large scales is a fundamental premise on which modern cosmology is based. Fractal dimensions of matter distribution is a parameter that can be used to test the hypothesis of homogeneity. In this method, galaxies are used as tracers of the distribution of matter and samples derived from various galaxy redshift surveys have been used to determine the scale of homogeneity in the Universe. Ideally, for homogeneity, the distribution should be a mono-fractal with the fractal dimension equal to the ambient dimension. While this ideal definition is true for infinitely large point sets, this may not be realised as in practice, we have only a finite point set. The correct benchmark for realistic data sets is a homogeneous distribution of a finite number of points and this should be used in place of the mathematically defined fractal dimension for infinite number of points (D) as a requirement for approach towards homogeneity. We derive the expected fractal dimension for a homogeneous distribution of a finite number of points. We show that for sufficiently large data sets the expected fractal dimension approaches D in absence of clustering. It is also important to take the weak, but non-zero amplitude of clustering at very large scales into account. In this paper we also compute the expected fractal dimension for a finite point set that is weakly clustered. Clustering introduces departures in the Fractal dimensions from D and in most situations the departures are small if the amplitude of clustering is small. Features in the two point correlation function, like those introduced by Baryon Acoustic Oscillations (BAO) can lead to non-trivial variations in the Fractal dimensions where the amplitude of clustering and deviations from D are no longer related in a monotonic manner.
Table Definitions, Sources, and Explanatory Notes
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystallineForeign ObjectOUR Table 1.Number ofExports Definitions Key Terms
Table Definitions, Sources, and Explanatory Notes
Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteamYear Jan FebThousand CubicinResidual FuelYield Definitions Key Terms
Statics and Dynamics of Spin and Electric Dipoles in 3-Dimension, 4-Dimension, and Other Dimensions
SASLOW, WM; Fulling, Stephen A.; Hu, Chia-Ren.
1985-01-01T23:59:59.000Z
-dimensional spaces where polar vec- tors have n components, spin has n (n ?1)/2 components. Moreover, although a rotation can make an arbitrary polar vector have only one noniero component, the same is not true for spin (and mag- netic field). In particular, for n... com- ponent we have derived the equation of motion for spin in n dimensions, and for n =4 we apply it to free Larmor precession, where we find two modes [at y(H~2+H34)]. Simple ferromagnets and spin glasses are also discussed for n=4. Since no true...
J. J. Monaghan; D. J. Price
2005-10-25T23:59:59.000Z
Toy Stars are gas masses where the compressibility is treated without approximations but gravity is replaced by a force which, for any pair of masses, is along their line of centres and proportional to their separation. They provide an invaluable resource for testing the suitability of numerical codes for astrophysical gas dynamics. In this paper we derive the equations for both small amplitude oscillations and non linear solutions for rotating and pulsating Toy Stars in two dimensions, and show that the solutions can be reduced to a small number of ordinary differential equations. We compare the accurate solutions of these equations with Smoothed Particle Hydrodynamics (SPH) simulations. The two dimensional Toy Star solutions are found to provide an excellent benchmark for SPH algorithms, highlighting many of the strengths and also some weaknesses of the method.
Dimensions of Brand Personality: A New Measure of Brand Personality in Sport
Kang, Chanho
2013-07-25T23:59:59.000Z
encoded in language as words associated with the brands (Caprara, Barbaranelli, & Guido, 2001; Goldberg, 1990). Through the lexical approach in psychology, Aaker (1997) performed an exploratory factor analysis in order to generate brand personality... researchers have found that the number of human personality dimensions could be grouped in terms of five major dimensions named by the Big Five (Goldberg, 1990; John, 1990; Ashton & Lee, 2005; Ashton, Lee, & Goldberg, 2004), which include five factors: (a...
The Deng algorithm in higher dimensions
Y. Nyonyi; S. D. Maharaj; K. S. Govinder
2014-12-28T23:59:59.000Z
We extend an algorithm of Deng in spherically symmetric spacetimes to higher dimensions. We show that it is possible to integrate the generalised condition of pressure isotropy and generate exact solutions to the Einstein field equations for a shear-free cosmological model with heat flow in higher dimensions. Three new metrics are identified which contain results of four dimensions as special cases. We show graphically that the matter variables are well behaved and the speed of sound is causal.
Glossary of Terms | Department of Energy
Office of Environmental Management (EM)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecember 2005DepartmentDecemberGlossary of Terms Glossary of Terms TERM DEFINITION
Deconstructing Dimensions Adventures in Theory Space
Nima Arkani-Hamed
2009-11-28T23:59:59.000Z
Theories of gravity and gauge forces in more than four dimensions offer a new paradigm for physics beyond the standard model. We present some of the most interesting recent ideas, and explain how signals for extra dimensions could appear in experiments at a linear e+e- collider.
On SIC-POVMs in Prime Dimensions
Steven T. Flammia
2006-10-20T23:59:59.000Z
The generalized Pauli group and its normalizer, the Clifford group, have a rich mathematical structure which is relevant to the problem of constructing symmetric informationally complete POVMs (SIC-POVMs). To date, almost every known SIC-POVM fiducial vector is an eigenstate of a "canonical" unitary in the Clifford group. I show that every canonical unitary in prime dimensions p > 3 lies in the same conjugacy class of the Clifford group and give a class representative for all such dimensions. It follows that if even one such SIC-POVM fiducial vector is an eigenvector of such a unitary, then all of them are (for a given such dimension). I also conjecture that in all dimensions d, the number of conjugacy classes is bounded above by 3 and depends only on d mod 9, and I support this claim with computer computations in all dimensions < 48.
Title: China Dimensions Data Collection Data Creator /
Title: China Dimensions Data Collection Data Creator / Copyright Owner: Center for International holds wide range of natural science and socioeconomic research and educational activities of China. These databases are integrated with agricultural, land use, environmental, socioeconomic data to track China
Dark Energy, Inflation and Extra Dimensions
Paul J. Steinhardt; Daniel Wesley
2008-12-07T23:59:59.000Z
We consider how accelerated expansion, whether due to inflation or dark energy, imposes strong constraints on fundamental theories obtained by compactification from higher dimensions. For theories that obey the null energy condition (NEC), we find that inflationary cosmology is impossible for a wide range of compactifications; and a dark energy phase consistent with observations is only possible if both Newton's gravitational constant and the dark energy equation-of-state vary with time. If the theory violates the NEC, inflation and dark energy are only possible if the NEC-violating elements are inhomogeneously distributed in thecompact dimensions and vary with time in precise synchrony with the matter and energy density in the non-compact dimensions. Although our proofs are derived assuming general relativity applies in both four and higher dimensions and certain forms of metrics, we argue that similar constraints must apply for more general compactifications.
On c-theorems in arbitrary dimensions
Arpan Bhattacharyya; Ling-Yan Hung; Kallol Sen; Aninda Sinha
2012-11-20T23:59:59.000Z
The dilaton action in 3+1 dimensions plays a crucial role in the proof of the a-theorem. This action arises using Wess-Zumino consistency conditions and crucially relies on the existence of the trace anomaly. Since there are no anomalies in odd dimensions, it is interesting to ask how such an action could arise otherwise. Motivated by this we use the AdS/CFT correspondence to examine both even and odd dimensional CFTs. We find that in even dimensions, by promoting the cut-off to a field, one can get an action for this field which coincides with the WZ action in flat space. In three dimensions, we observe that by finding an exact Hamilton-Jacobi counterterm, one can find a non-polynomial action which is invariant under global Weyl rescalings. We comment on how this finding is tied up with the F-theorem conjectures.
Solar energy generation in three dimensions
Bernardi, Marco
We formulate, solve computationally and study experimentally the problem of collecting solar energy in three dimensions. We demonstrate that absorbers and reflectors can be combined in the absence of sun tracking to build ...
Secrecy coverage in two dimensions Amites Sarkar
Sarkar, Amites
Secrecy coverage in two dimensions Amites Sarkar Department of Mathematics Western Washington University Bellingham, WA 98225, USA Email: amites.sarkar@wwu.edu Abstract--Imagine a sensor network
Secrecy coverage in two dimensions Amites Sarkar
Sarkar, Amites
Secrecy coverage in two dimensions Amites Sarkar November 15, 2014 Abstract Working in the infinite, Bellingham, WA 98225, USA. Email: amites.sarkar@wwu.edu 1 #12;Svante Janson proved in 1986 [7] that coverage
Secrecy coverage in two dimensions Amites Sarkar
Sarkar, Amites
Secrecy coverage in two dimensions Amites Sarkar October 29, 2013 Abstract Working in the infinite, Western Washington University, Bellingham, WA 98225, USA. Email: amites.sarkar@wwu.edu 1 #12;Svante Janson
The Ground State Energy of a Dilute Bose Gas in Dimension n >3
Anders Aaen
2014-03-24T23:59:59.000Z
We consider a Bose gas in spatial dimension $n>3$ with a repulsive, radially symmetric two-body potential $V$. In the limit of low density $\\rho$, the ground state energy per particle in the thermodynamic limit is shown to be $(n-2)|\\mathbb S^{n-1}|a^{n-2}\\rho$, where $|\\mathbb S^{n-1}|$ denotes the surface measure of the unit sphere in $\\mathbb{R}^n$ and $a$ is the scattering length of $V$. Furthermore, for smooth and compactly supported two-body potentials, we derive upper bounds to the ground state energy with a correction term $(1+C\\gamma)8\\pi^4a^6\\rho^2|\\ln(a^4\\rho)|$ in dimension $n=4$, where $\\gamma:=\\int V(x)|x|^{-2}\\, dx$, and a correction term which is $\\mathcal{O}(\\rho^2)$ in higher dimensions.
Breaking Parity Symmetry Using Extra Dimensions
R. N. Mohapatra; A. P閞ez-Lorenzana
1999-11-17T23:59:59.000Z
We present a new way to break parity symmetry in left-right symmetric models using boundary conditions on the fields residing in the fifth dimension. We also discuss the connection between the limits on the size of extra dimensions and the scale of right handed symmetry breaking obtained from the analysis of neutrinoless double beta decay in the case where the righthanded gauge symmetry is in the bulk.
Large-dimension, high-ZT Thermoelectric Nanocomposites for High...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Large-dimension, high-ZT Thermoelectric Nanocomposites for High-Power High-efficiency Waste Heat Recovery for Electricity Generation Large-dimension, high-ZT Thermoelectric...
White Paper Societal Dimensions of Earth System Modeling
on Societal Dimensions of Earth System Modeling July 5, 2011 #12; 2 Executive Summary 路 A Societal Dimensions of Earth System Modeling workshop was held
Entropy and Energy: Toward a Definition of Physical Sustainability
Hermanowicz, Slawomir W
2005-01-01T23:59:59.000Z
usefulness of entropy-energy definition of sustainability asEntropy and Energy: Toward a Definition of Physicaland energy should be included in the desired definition of
Coordinate Systems in One and Two Dimensions
Wood, Frank Edwin
1914-06-01T23:59:59.000Z
joining these two points makes* with a given line,-. A broader definition is given by Fischer** when he defines coordinates as numbers which determine single"" valuedly the position of a geometric element,and which are,vice versa^determined single... valuedly by such positionjWith the furth- VaYieCtiOK er property that the continuousAof the coordinates^or of the pos- ition of the element causes a cprresponding variation in the oth- er.Still more comprehensive definitions are given by a S c o t t ^ w h...
Glossary of CERCLA, RCRA and TSCA related terms and acronyms. Environmental Guidance
Not Available
1993-10-01T23:59:59.000Z
This glossary contains CERCLA, RCRA and TSCA related terms that are most often encountered in the US Department of Energy (DOE) Environmental Restoration and Emergency Preparedness activities. Detailed definitions are included for key terms. The CERCLA definitions included in this glossary are taken from the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), as amended and related federal rulemakings. The RCRA definitions included in this glossary are taken from the Resource Conservation and Recovery Act (RCRA) and related federal rulemakings. The TSCA definitions included in this glossary are taken from the Toxic Substances and Control Act (TSCA) and related federal rulemakings. Definitions related to TSCA are limited to those sections in the statute and regulations concerning PCBs and asbestos.Other sources for definitions include additional federal rulemakings, assorted guidance documents prepared by the US Environmental Protection Agency (EPA), guidance and informational documents prepared by the US Department of Energy (DOE), and DOE Orders. The source of each term is noted beside the term. Terms presented in this document reflect revised and new definitions published before July 1, 1993.
Mauricio Cataldo; Alberto A. Garc韆
2014-05-15T23:59:59.000Z
In this paper we discuss the radiation equation of state $p=\\rho/2$ in (2+1)-dimensions. In (3+1)-dimensions the equation of state $p=\\rho/3$ may be used to describe either actual electromagnetic radiation (photons) as well as a gas of massless particles in a thermodynamic equilibrium (for example neutrinos). In this work it is shown that in the framework of (2+1)-dimensional Maxwell electrodynamics the radiation law $p=\\rho/2$ takes place only for plane waves, i.e. for $E = B$. Instead of the linear Maxwell electrodynamics, to derive the (2+1)-radiation law for more general cases with $E \
Fractal Dimension Computation From Equal Mass Partitions
Shiozawa, Yui; Rouet, Jean-Louis
2015-01-01T23:59:59.000Z
While the numerical methods which utilizes partitions of equal-size, including the box-counting method, remain the most popular choice for computing the generalized dimension of multifractal sets, two mass- oriented methods are investigated by applying them to the one-dimensional generalized Cantor set. We show that both mass-oriented methods generate relatively good results for generalized dimensions for important cases where the box-counting method is known to fail. Both the strengths and limitations of the methods are also discussed.
Holographic fractional topological insulators in 2+1 and 1+1 dimensions
Andreas Karch; Joseph Maciejko; Tadashi Takayanagi
2010-11-09T23:59:59.000Z
We give field theory descriptions of the time-reversal invariant quantum spin Hall insulator in 2+1 dimensions and the particle-hole symmetric insulator in 1+1 dimensions in terms of massive Dirac fermions. Integrating out the massive fermions we obtain a low-energy description in terms of a topological field theory, which is entirely determined by anomaly considerations. This description allows us to easily construct low-energy effective actions for the corresponding `fractional' topological insulators, potentially corresponding to new states of matter. We give a holographic realization of these fractional states in terms of a probe brane system, verifying that the expected topologically protected transport properties are robust even at strong coupling.
Manufacturing Energy and Carbon Footprint Definitions and Assumptions...
Broader source: Energy.gov (indexed) [DOE]
Definitions and Assumptions, October 2012 Manufacturing Energy and Carbon Footprint Definitions and Assumptions, October 2012 footprintsassumptionsdefinitions2012.pdf More...
The communication dimension of wind energy
McCalley, James D.
energy 路 People see the advantages of wind power as being more important than the disadvantagesThe communication dimension of wind energy: Challenges and opportunities #12;OPPORTUNITIES #12;Pew of industry Kick and Smith, 2008 #12;Other audience characteristics 路 A public relatively informed about wind
The Environmental Justice Dimensions of Climate Change
The Environmental Justice Dimensions of Climate Change Marie Lynn Miranda, Douglas A. Hastings to mitigate the severe impacts of climate change predicted to occur in the twenty-first century. Many with climate change. This study investigates the varying degrees to which developing and developed nations
Large-N droplets in two dimensions
Dean Lee
2006-05-15T23:59:59.000Z
Using lattice effective field theory, we study the ground state binding energy of N distinct particles in two dimensions with equal mass interacting weakly via an attractive SU(N)-symmetric short range potential. We find that in the limit of zero range and large N, the ratio of binding energies B_{N}/B_{N-1} approaches the value 8.3(6).
Cosmological model with movement in fifth dimension
W. B. Belayev
2001-10-24T23:59:59.000Z
Presented cosmological model is 3D brane world sheet moved in extra dimension with variable scale factor. Analysis of the geodesic motion of the test particle gives settle explanation of the Pioneer effect. It is found that for considered metric the solution of the semi-classical Einstein equations with various parameters conforms to isotropic expanded and anisotropic stationary universe.
The Running coupling BFKL anomalous dimensions and splitting functions.
Thorne, Robert S
ar X iv :h ep -p h/ 01 03 21 0v 2 7 Ju n 20 01 Cavendish-HEP-01/03 The Running Coupling BFKL Anomalous Dimensions and Splitting Functions Robert S. Thorne1 Cavendish Laboratory, University of Cambridge Madingley Road, Cambridge, CB3 0HE, U... that it is is dominated by the NLO corrections at all values of x below about x = 0.01. For example, using the formulae in [11] the first few terms in the power series for P (x) go like xP (x,Q2) =?痵 + 2.4?4s?3/6 + 2.1?6s?5/120 + ? ?痵(0.43?痵 + 1.6?2s? + 11.7?...
Anomalies of discrete symmetries in various dimensions and group cohomology
Anton Kapustin; Ryan Thorngren
2014-04-16T23:59:59.000Z
We study 't Hooft anomalies for discrete global symmetries in bosonic theories in 2, 3 and 4 dimensions. We show that such anomalies may arise in gauge theories with topological terms in the action, if the total symmetry group is a nontrivial extension of the global symmetry by the gauge symmetry. Sometimes the 't Hooft anomaly for a d-dimensional theory with a global symmetry G can be canceled by anomaly inflow from a (d+1)-dimensional topological gauge theory with gauge group G. Such d-dimensional theories can live on the surfaces of Symmetry Protected Topological Phases. We also give examples of theories with more severe 't Hooft anomalies which cannot be canceled in this way.
Adiabatic Hyperspherical Representation for the Three-body Problem in Two Dimensions
J. P. D'Incao; B. D. Esry
2014-04-01T23:59:59.000Z
We explore the three-body problem in two dimensions using the adiabatic hyperspherical representation. We develop the main equations in terms of democratic hyperangular coordinates and determine several symmetry properties and boundary conditions for both interacting and non-interacting solutions. From the analysis of the three-body effective potentials, we determine the threshold laws for low energy three-body recombination, collision-induced dissociation as well as inelastic atom-diatom collisions in two dimensions. Our results show that the hyperspherical representation can offer a simple and conceptually clear physical picture for three-body process in two dimensions which is also suitable for calculations using finite range two-body interactions supporting a number of bound states.
Master EM Project Definition Rating Index - Environmental Restoration Definitions
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EM Project Definition Rating Index - Environmental
Master EM Project Definition Rating Index - Facility Disposition Definitions
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EM Project Definition Rating Index - Environmental43
Master EM Project Definition Rating Index - Traditional (Conventional) Definitions
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EM Project Definition Rating Index - Environmental43
CHEMICAL ENGINEERING Fall Term Spring Term
Lee, Kelvin H.
CHEMICAL ENGINEERING CURRICULUM FALL 2010 Fall Term Spring Term EGGG 101 Introduction to Chemical Engineering 3 MATH 242 Analytic Geometry & Calculus B 4 MATH 243 Analytic Geometry & Calculus C 4 Critical Reading and Writing 3 Breadth Requirement Elective 1 3 15 17 CHEG 231 Chemical Engineering
CHEMICAL ENGINEERING Fall Term Spring Term
Lee, Kelvin H.
CHEG 332 Chemical Engineering Kinetics 3 CHEG 342 Heat and Mass Transfer 3 CHEG 341 Fluid Mechanics 3CHEMICAL ENGINEERING CURRICULUM Fall Term Spring Term EGGG 101 Introduction to Engineering (FYE) 2 CHEG 112 Introduction to Chemical Engineering 3 CHEM 111 General Chemistry 3 CHEM 112 General Chemistry
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData Files Data Files 1B&W Y-12studies in
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to UserProduct: CrudeOffice ofINLNuclear Security |CreatingA Sign In About
Not Available
1980-12-01T23:59:59.000Z
The results of the system definition studies conducted by NASA as a part of the Department of Energy/National Aeronautics and Space Administration SPS Concept Development and Evaluation Program are summarized. The purpose of the system definition efforts was to identify and define candidate SPS concepts and to evaluate the concepts in terms of technical and cost factors. Although the system definition efforts consisted primarily of evaluation and assessment of alternative technical approaches, a reference system was also defined to facilitate economic, environmental, and societal assessments by the Department of Energy. This reference system was designed to deliver 5 GW of electrical power to the utility grid. Topics covered include system definition; energy conversion and power management; power transmission and reception; structures, controls, and materials; construction and operations; and space transportation.
The Hausdorff dimension in polymerized quantum gravity
Martin G. Harris; John F. Wheater
1998-11-24T23:59:59.000Z
We calculate the Hausdorff dimension, $d_H$, and the correlation function exponent, $\\eta$, for polymerized two dimensional quantum gravity models. If the non-polymerized model has correlation function exponent $\\eta_0 >3$ then $d_H=\\gamma^{-1}$ where $\\gamma$ is the susceptibility exponent. This suggests that these models may be in the same universality class as certain non-generic branched polymer models.
Codes and Supersymmetry in One Dimension
C. F. Doran; M. G. Faux; S. J. Gates Jr.; T. H黚sch; K. M. Iga; G. D. Landweber; R. L. Miller
2011-08-20T23:59:59.000Z
Adinkras are diagrams that describe many useful supermultiplets in D=1 dimensions. We show that the topology of the Adinkra is uniquely determined by a doubly even code. Conversely, every doubly even code produces a possible topology of an Adinkra. A computation of doubly even codes results in an enumeration of these Adinkra topologies up to N=28, and for minimal supermultiplets, up to N=32.
Standard Model scales from warped extra dimensions
Bernard Riley
2008-08-31T23:59:59.000Z
If in the Randall and Sundrum RS1 model the inverse of the compactification radius, the AdS curvature scale, and the five and four-dimensional Planck scales are equal in size, as is natural, then the warp factor at the location of the low energy brane is of value 1/pi. So that all scales derive from locations in the space, we identify the extra dimension with the infinite covering space of the S1/Z2 orbifold. The extra dimension is then essentially a series of connected line intervals, punctuated by branes. Scales on successive branes in the extra dimension descend from Planck scale in a geometric sequence of common ratio 1/pi. Evidence is provided for such a sequence within the spectrum of particle masses, and of a second geometric sequence, of common ratio 2/pi, which suggests that the AdS spacetime is six-dimensional and doubly warped. The scales of the Standard Model lie at coincident levels within the two sequences. A third sequence, of common ratio 1/e, provides a symmetrical framework for the Standard Model and points to a warped product spacetime.
Data dimensions: disciplinary differences in research data sharing, reuse and long term viability
Key Perspectives Ltd
This synthesis report has been produced for the Digital Curation Centre (DCC) SCARP project, funded by the Joint Information Systems Committee (JISC) to investigate disciplinary attitudes and approaches to data deposit.
Boyer, Edmond
and dimensions) and specific mechanical behaviour of salt under the effect of phenomena such as creep, damage EXPLOITATIONS OF SALT GHOREYCHI Mehdi, DAUPLEY Xavier INERIS - Institut National de l'Environnement Industriel term evolution of abandoned exploitations of salt is discussed by analysing three basic aspects
Paris-Sud XI, Universit茅 de
and dimensions) and sp茅cifie mechanical behav卯our of salt under th茅 effect of phenomena such as creep, damage EXPLOITATIONS 0F SALT GHOREYCHI Mehdi, DAUPLEY Xavier INERIS - Institut National de l'Environnement Industriel term 茅volution of abandoned exploitations of salt is discussed by analysing three basic aspects
Dimension two vacuum condensates in gauge-invariant theories
D. V. Bykov; A. A. Slavnov
2005-05-11T23:59:59.000Z
Gauge dependence of the dimension two condensate in Abelian and non-Abelian Yang-Mills theory is investigated.
Definition RX Evaluate Kernels K-2d K-1d Change By definition undefined
Theiler, James
Definition RX Evaluate Kernels K-2d K-1d Change By def穒穘i穞ion undefined Adventures in anomaly Alamos National Laboratory Research supported by the United States Department of Energy through the Los Alamos Laboratory Directed Research and Development (LDRD) Program. #12;Theiler LA-UR-14-24429 Definition
NLO BFKL and Anomalous Dimensions of Light-Ray Operators
Balitsky, Ian [JLAB, Newport News, VA (United States)
2014-01-01T23:59:59.000Z
The anomalous dimensions of light-ray operators of twist two are obtained by analytical continuation of the anomalous dimensions of corresponding local operators. I demonstrate that the asymptotics of these anomalous dimensions at the "BFKL point" j ? 1 can be obtained by comparing the light-cone operator expansion with the high-energy expansion in Wilson lines.
On the fractal dimension of the Duffing attractor
Mariusz Tarnopolski
2014-09-12T23:59:59.000Z
The box counting dimension $d_C$ and the correlation dimension $d_G$ change with the number of numerically generated points forming the attractor. At a sufficiently large number of points the fractal dimension tends to a finite value. The obtained values are $d_C\\approx 1.43$ and $d_G\\approx 1.38$.
Arslan, H眉seyin
Our definition of sustainability reflects what the UN and the World Wildlife Fund suggest as the process of improving the quality of human life while living within the carrying capacity of supporting eco are fundamentally integrated dimensions that are mutually reinforcing. The new School of Global Sustainability
Radiation Beyond Four Space-Time Dimensions
A. Mironov; A. Morozov
2007-03-09T23:59:59.000Z
We present a list of formulas describing classical radiation of the rank s tensor field from an accelerated point-like source in flat space-time of arbitrary even dimension d. This allows straightforward evaluating the total intensity and radiated momentum for any $s$ and $d$ algorithmically, by hands or with the help of a computer (e.g. with an attached MAPLE program). Practical application of formulas is limited, because, for s>1, the energy-momentum tensor for the point-like source is not conserved. This usually means that one cannot neglect contributions to radiation from tensions of the forces that cause acceleration of the source.
2008-09-26T23:59:59.000Z
113 line relaxation. 118 119 relation to eigen values. 101. S.I.P. ... Eigenvalue definition of. 101 of Jacobi iteration matrix ... semi-implicit. 162. Model, reservoir.
Black Holes and Sub-millimeter Dimensions
Argyres, Philip C; March-Russell, John David; Argyres, Philip C.; Dimopoulos, Savas; March-Russell, John
1998-01-01T23:59:59.000Z
Recently, a new framework for solving the hierarchy problem was proposed which does not rely on low energy supersymmetry or technicolor. The fundamental Planck mass is at a TeV and the observed weakness of gravity at long distances is due the existence of new sub-millimeter spatial dimensions. In this letter, we study how the properties of black holes are altered in these theories. Small black holes---with Schwarzschild radii smaller than the size of the new spatial dimensions---are quite different. They are bigger, colder, and longer-lived than a usual $(3+1)$-dimensional black hole of the same mass. Furthermore, they primarily decay into harmless bulk graviton modes rather than standard-model degrees of freedom. We discuss the interplay of our scenario with the holographic principle. Our results also have implications for the bounds on the spectrum of primordial black holes (PBHs) derived from the photo-dissociation of primordial nucleosynthesis products, distortion of the diffuse gamma-ray spectrum, overcl...
Shape Dynamics in 2+1 Dimensions
Timothy Budd; Tim Koslowski
2011-07-07T23:59:59.000Z
Shape Dynamics is a formulation of General Relativity where refoliation invariance is traded for local spatial conformal invariance. In this paper we explicitly construct Shape Dynamics for a torus universe in 2+1 dimensions through a linking gauge theory that ensures dynamical equivalence with General Relativity. The Hamiltonian we obtain is formally a reduced phase space Hamiltonian. The construction of the Shape Dynamics Hamiltonian on higher genus surfaces is not explicitly possible, but we give an explicit expansion of the Shape Dynamics Hamiltonian for large CMC volume. The fact that all local constraints are linear in momenta allows us to quantize these explicitly, and the quantization problem for Shape Dynamics turns out to be equivalent to reduced phase space quantization. We consider the large CMC-volume asymptotics of conformal transformations of the wave function. We then use the similarity of Shape Dynamics on the 2-torus with the explicitly constructible strong gravity (BKL) Shape Dynamics Hamiltonian in higher dimensions to suggest a quantization strategy for Shape Dynamics.
Pushing the Frontier of High-Definition Ion Mobility Spectrometry...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
the Frontier of High-Definition Ion Mobility Spectrometry Using FAIMS. Pushing the Frontier of High-Definition Ion Mobility Spectrometry Using FAIMS. Abstract: Differential ion...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Testbed Results Current Testbed Research Proposal Process Terms and Conditions Dark Fiber Testbed Performance (perfSONAR) Software & Tools Development Partnerships...
The BCS - BEC Crossover In Arbitrary Dimensions
Zohar Nussinov; Shmuel Nussinov
2005-10-11T23:59:59.000Z
Cold atom traps and certain neutron star layers may contain fermions with separation much larger than the range of pair-wise potentials yet much shorter than the scattering length. Such systems can display {\\em universal} characteristics independent of the details of the short range interactions. In particular, the energy per particle is a fraction $\\xi$ of the Fermi energy of the free Fermion system. Our main result is that for space dimensions D smaller than two and larger than four a specific extension of this problem readily yields $\\xi=1$ for all $D \\le 2$ whereas $\\xi$ is rigorously non-positive (and potentially vanishing) for all $ D \\ge 4$. We discuss the D=3 case. A particular unjustified recipe suggests $\\xi=1/2$ in D=3.
Solar Energy Generation in Three Dimensions
Bernardi, Marco; Wan, Jin H; Villalon, Rachelle; Grossman, Jeffrey C
2011-01-01T23:59:59.000Z
Optimizing the conversion of solar energy to electricity is central to the World's future energy economy. Flat photovoltaic panels are commonly deployed in residential and commercial rooftop installations without sun tracking systems and using simple installation guidelines to optimize solar energy collection. Large-scale solar energy generation plants use bulky and expensive sun trackers to avoid cosine losses from photovoltaic panels or to concentrate sunlight with mirrors onto heating fluids.[1,2] However, none of these systems take advantage of the three-dimensional nature of our biosphere, so that solar energy collection largely occurs on flat structures in contrast with what is commonly observed in Nature.[3,4] Here we formulate, solve computationally and study experimentally the problem of collecting solar energy in three-dimensions.[5] We demonstrate that absorbers and reflectors can be combined in the absence of sun tracking to build three-dimensional photovoltaic (3DPV) structures that can generate ...
Department of Bioengineering Definition of Biomedical Engineering
Department of Bioengineering Definition of Biomedical Engineering Biomedical engineering cross-disciplinary activities that integrate the engineering sciences with the biomedical sciences are the Specialty Areas? Some of the well established specialty areas within the field of biomedical engineering
Definition of a 'Zero Net Energy' Community
Carlisle, N.; Van Geet, O.; Pless, S.
2009-11-01T23:59:59.000Z
This document provides a definition for a net zero-energy community. A community that offsets all of its energy use from renewables available within the community's built environment.
Thermodynamic formalism for the Lorentz gas with open boundaries in $d$ dimensions
Henk van Beijeren; Oliver Muelken
2004-11-12T23:59:59.000Z
A Lorentz gas may be defined as a system of fixed dispersing scatterers, with a single light particle moving among these and making specular collisions on encounters with the scatterers. For a dilute Lorentz gas with open boundaries in $d$ dimensions we relate the thermodynamic formalism to a random flight problem. Using this representation we analytically calculate the central quantity within this formalism, the topological pressure, as a function of system size and a temperature-like parameter $\\ba$. The topological pressure is given as the sum of the topological pressure for the closed system and a diffusion term with a $\\ba$-dependent diffusion coefficient. From the topological pressure we obtain the Kolmogorov-Sinai entropy on the repeller, the topological entropy, and the partial information dimension.
Establishing Analogies between the Physics of Extra Dimensions and Carbon Nanotubes
Jonas de Woul; Alexander Merle; Tommy Ohlsson
2012-07-05T23:59:59.000Z
We point out a conceptual analogy between the physics of extra spatial dimensions and the physics of carbon nanotubes which arises for principle reasons, although the corresponding energy scales are at least ten orders of magnitude apart. For low energies, one can apply the Kaluza-Klein description to both types of systems, leading to two completely different but consistent interpretations of the underlying physics. In particular, we discuss in detail the Kaluza-Klein description of armchair and zig-zag carbon nanotubes. Furthermore, we describe how certain experimental results for carbon nanotubes could be re-interpreted in terms of the Kaluza-Klein description. Finally, we present ideas for new measurements that could allow to probe concepts of models with extra spatial dimensions in table-top experiments, providing further links between condensed matter and particle physics.
Generalized Klein-Gordon equations in d dimensions from supersymmetry
Bollini, C.G.; Giambiagi, J.J.
1985-12-15T23:59:59.000Z
The Wess-Zumino model is extended to higher dimensions, leading to a generalized Klein-Gordon equation whose propagator is computed in configuration space.
K-theoretic rigidity and slow dimension growth
2011-02-18T23:59:59.000Z
Oct 28, 2009 ... In fact, there are no simple separable nuclear stably finite C. ? ... fine locally finite nuclear dimension here; it is enough for us that separable.
Gauge and Higgs Boson Masses from an Extra Dimension
Graham Moir; Peter Dziennik; Nikos Irges; Francesco Knechtli; Kyoko Yoneyama
2014-11-03T23:59:59.000Z
We present novel calculations of the mass hierarchy of the $SU(2)$ pure gauge theory on a space-time lattice with an orbifolded fifth dimension. This theory has three parameters; the gauge coupling $\\beta$, the anisotropy $\\gamma$, which is a measure of the ratio of the lattice spacing in the four dimensions to that in the fifth dimension, and the extent of the extra dimension $N_{5}$. Using a large basis of scalar and vector operators we explore in detail the spectrum along the $\\gamma = 1$ line, and for the first time we investigate the spectrum for $\\gamma \
Major, Arkady
Title: Authors: Source: Document Type: Subject Terms: Abstract: Full Text Word Count: ISSN at creating team results. In fact, it's priceless. Managers in Western corporations have received a lifetime
Holographic c-theorems in arbitrary dimensions
Robert C. Myers; Aninda Sinha
2011-02-20T23:59:59.000Z
We re-examine holographic versions of the c-theorem and entanglement entropy in the context of higher curvature gravity and the AdS/CFT correspondence. We select the gravity theories by tuning the gravitational couplings to eliminate non-unitary operators in the boundary theory and demonstrate that all of these theories obey a holographic c-theorem. In cases where the dual CFT is even-dimensional, we show that the quantity that flows is the central charge associated with the A-type trace anomaly. Here, unlike in conventional holographic constructions with Einstein gravity, we are able to distinguish this quantity from other central charges or the leading coefficient in the entropy density of a thermal bath. In general, we are also able to identify this quantity with the coefficient of a universal contribution to the entanglement entropy in a particular construction. Our results suggest that these coefficients appearing in entanglement entropy play the role of central charges in odd-dimensional CFT's. We conjecture a new c-theorem on the space of odd-dimensional field theories, which extends Cardy's proposal for even dimensions. Beyond holography, we were able to show that for any even-dimensional CFT, the universal coefficient appearing the entanglement entropy which we calculate is precisely the A-type central charge.
Rigorous and General Definition of Thermodynamic Entropy
Gian Paolo Beretta; Enzo Zanchini
2010-10-05T23:59:59.000Z
The physical foundations of a variety of emerging technologies --- ranging from the applications of quantum entanglement in quantum information to the applications of nonequilibrium bulk and interface phenomena in microfluidics, biology, materials science, energy engineering, etc. --- require understanding thermodynamic entropy beyond the equilibrium realm of its traditional definition. This paper presents a rigorous logical scheme that provides a generalized definition of entropy free of the usual unnecessary assumptions which constrain the theory to the equilibrium domain. The scheme is based on carefully worded operative definitions for all the fundamental concepts employed, including those of system, property, state, isolated system, environment, process, separable system, system uncorrelated from its environment, and parameters of a system. The treatment considers also systems with movable internal walls and/or semipermeable walls, with chemical reactions and/or external force fields, and with small numbers of particles. The definition of reversible process is revised by introducing the new concept of scenario. The definition of entropy involves neither the concept of heat nor that of quasistatic process; it applies to both equilibrium and nonequilibrium states. The role of correlations on the domain of definition and on the additivity of energy and entropy is discussed: it is proved that energy is defined and additive for all separable systems, while entropy is defined and additive only for separable systems uncorrelated from their environment; decorrelation entropy is defined. The definitions of energy and entropy are extended rigorously to open systems. Finally, to complete the discussion, the existence of the fundamental relation for stable equilibrium states is proved, in our context, for both closed and open systems.
Paliouras, George
of resource management (use case and demand side) and event processing (technology and supply side). MethodsPottebaum et al. Event Definition for Intelligent Resource Management Event Definition for the Application of Event Processing to Intelligent Resource Management Jens Pottebaum University of Paderborn, C
Interactive Dimensions in the Construction of Mental Representations for Text
Patel, Aniruddh D.
Interactive Dimensions in the Construction of Mental Representations for Text David N. Rapp be as critical to the construction of complex mental models as the discrete dimensions themselves. In the present a bead on Specify again. Incredibly, the horse was still rolling along. A pang of fear went through Woolf
Fractal dimension in dissipative chaotic scattering Jess M. Seoane,1,
Rey Juan Carlos, Universidad
Fractal dimension in dissipative chaotic scattering Jes煤s M. Seoane,1, * Miguel A. F. Sanju谩n,1 on chaotic scattering is relevant to situations of physical interest. We inves- tigate how the fractal is thus the fractal dimension of the set of singularities. For nonhyperbolic scattering, it has been known
Effects of Ultramicroelectrode Dimensions on the Electropolymerization of Polypyrrole
Fletcher, Benjamin L [ORNL; Fern, Jared T. [University of Tennessee, Knoxville (UTK); Rhodes, Kevin [University of Tennessee, Knoxville (UTK); McKnight, Timothy E [ORNL; Fowlkes, Jason Davidson [ORNL; Retterer, Scott T [ORNL; Keffer, David J. [University of Tennessee, Knoxville (UTK); Simpson, Michael L [ORNL; Doktycz, Mitchel John [ORNL
2009-01-01T23:59:59.000Z
Anode geometry can significantly affect the electrochemical synthesis of conductive polymers. Here, the effects of anode dimensions on the electropolymerization of pyrrole are investigated. Band microelectrodes were prepared with widths ranging from 2 to 500 {micro}m. The anode dimension has a significant effect on the resulting thickness of polymer film. The electropolymerization process deviates significantly from that predicted by simple mass transfer considerations when electrode dimensions are less than {approx}20 {micro}m. Polymer film thickness is thinner than expected when electrode dimensions become less than {approx}10 {micro}m. A simple mathematical model was derived to explain the observed effects of anode dimensions on the polymerization process. Simulation results confirm that diffusive loss of reaction intermediates accounts for the observed experimental trends. The described simulation facilitates understanding of the electropolymerization processes and approaches to the controlled deposition of polypyrrole, particularly at the submicron scale, for microelectromechanical systems and biomedical applications.
Annual resources report. [Glossary on technical terms
Not Available
1982-01-01T23:59:59.000Z
The report is separated into the following sections: acknowledgments; a table of contents; a list of tables and figures; a glossary; an introduction; an overview of the role of energy resources in New Mexico; separate sections on oil and gas, coal, electrical generation, uranium, and geothermal energy; a section on the geologic setting of oil and gas, coal, and uranium; an appendix of additional tables pertaining to oil and gas development; and a listing of selected references. The glossary is a brief listing of technical terms used in the report with simplified definitions for the reader's use. The overview contains highlights of data found in the report as well as comparisons of New Mexico's resources with those of other states and the nation. In general, each section covering a resource area describes reserves, production, prices, consumption, transportation, employment, and revenue statistics over the past ten or more years and projections to the year 2000.
Atmospheric coherence times in interferometry: definition and measurement
A. Kellerer; A. Tokovinin
2006-10-06T23:59:59.000Z
Current and future ground-based interferometers require knowledge of the atmospheric time constant t_0, but this parameter has diverse definitions. Moreover, adequate techniques for monitoring t_0 still have to be implemented. We derive a new formula for the structure function of the fringe phase (piston) in a long-baseline interferometer, and review available techniques for measuring the atmospheric time constant and the shortcomings. It is shown that the standard adaptive-optics atmospheric time constant is sufficient for quantifying the piston coherence time, with only minor modifications. The residual error of a fast fringe tracker and the loss of fringe visibility in a finite exposure time are calculated in terms of the same parameter. A new method based on the fast variations of defocus is proposed. The formula for relating the defocus speed to the time constant is derived. Simulations of a 35-cm telescope demonstrate the feasibility of this new technique for site testing.
Dissipative hydrodynamics in 2+1 dimension
A. K. Chaudhuri
2006-05-25T23:59:59.000Z
In 2+1 dimension, we have simulated the hydrodynamic evolution of QGP fluid with dissipation due to shear viscosity. Comparison of evolution of ideal and viscous fluid, both initialised under the same conditions e.g. same equilibration time, energy density and velocity profile, reveal that the dissipative fluid evolves slowly, cooling at a slower rate. Cooling get still slower for higher viscosity. The fluid velocities on the otherhand evolve faster in a dissipative fluid than in an ideal fluid. The transverse expansion is also enhanced in dissipative evolution. For the same decoupling temperature, freeze-out surface for a dissipative fluid is more extended than an ideal fluid. Dissipation produces entropy as a result of which particle production is increased. Particle production is increased due to (i) extension of the freeze-out surface and (ii) change of the equilibrium distribution function to a non-equilibrium one, the last effect being prominent at large transverse momentum. Compared to ideal fluid, transverse momentum distribution of pion production is considerably enhanced. Enhancement is more at high $p_T$ than at low $p_T$. Pion production also increases with viscosity, larger the viscosity, more is the pion production. Dissipation also modifies the elliptic flow. Elliptic flow is reduced in viscous dynamics. Also, contrary to ideal dynamics where elliptic flow continues to increase with transverse momentum, in viscous dynamics, elliptic flow tends to saturate at large transverse momentum. The analysis suggest that initial conditions of the hot, dense matter produced in Au+Au collisions at RHIC, as extracted from ideal fluid analysis can be changed significantly if the QGP fluid is viscous.
Brane Stabilization and Regionality of Extra Dimensions
David M. Jacobs; Glenn D. Starkman; Andrew J. Tolley
2014-10-19T23:59:59.000Z
Extra dimensions are a common feature of beyond the Standard Model physics. In a braneworld scenario, local physics on the brane can depend strongly on the brane's location within the bulk. Generically, the relevant properties of the bulk manifold for the physics on/of the brane are neither local nor global, but depend on the structure of finite regions of the bulk, even for locally homogeneous and isotropic bulk geometries. In a recent work, various mechanisms (in a braneworld context) were considered to stabilize the location of a brane within bulk spaces of non-trivial topology. In this work we elaborate on and generalize that work by considering additional bulk and brane dimensionalities as well as different boundary conditions on the bulk scalar field that provides a Casimir force on the brane, providing further insight on this effect. In D=2+1 (D=5+1) we consider both local and global contributions to the effective potential of a 1-brane (4-brane) wrapped around both the 2-dimensional hyperbolic horn and Euclidean cone, which are used as toy models of an extra-dimensional manifold. We calculate the total energy due to brane tension and elastic energy (extrinsic curvature) as well as that due to the Casimir energy of a bulk scalar satisfying both Dirchlet and Neumann boundary conditions on the brane. In some cases stable minima of the potential are found that result from the competition of at least two of the contributions. Generically, any one of these effects may be sufficient when the bulk space has less symmetry than the manifolds considered here. We highlight the importance of the Casimir effect for the purpose of brane stabilization.
Analytical solutions of a generalized non-central potential in N-dimensions
Durmus, Aysen, E-mail: aysend@erciyes.edu.tr [Department of Physics, Erciyes University, Kayseri 38039 (Turkey); 謟fidan, Aysel [Institute of Science, Erciyes University, Kayseri 38039 (Turkey)
2014-10-15T23:59:59.000Z
We present that N-dimensional non-relativistic wave equation for the generalized non-central potential with arbitrary angular momentum is analytically solvable in the hyperspherical coordinates. Asymptotic iteration method as a different approach is applied to obtain N-dimensional energy eigenvalues and the corresponding eigenfunctions. In hyperspherical coordinates, the wave function solutions are obtained in terms of hypergeometric functions and Jacobi polynomials. The bound states of quantum systems under consideration for some special cases, such as Hartmann and Makarov potentials, have been discussed in N-dimensions.
Penrose inequalities and a positive mass theorem for charged black holes in higher dimension
Levi Lopes de Lima; Frederico Gir鉶; Weslley Loz髍io; Juscelino Silva
2014-01-05T23:59:59.000Z
We use the inverse mean curvature flow to establish Penrose-type inequalities for time-symmetric Einstein-Maxwell initial data sets which can be suitably embedded as a hypersurface in Euclidean space $\\mathbb R^{n+1}$, $n\\geq 3$. In particular, we prove a positive mass theorem for this class of charged black holes. As an application we show that the conjectured upper bound for the area in terms of the mass and the charge, which in dimension $n=3$ is relevant in connection with the Cosmic Censorship Conjecture, always holds under the natural assumption that the horizon is stable as a minimal hypersurface.
Spinning dilaton black holes in 2+1 dimensions: Quasinormal modes and the area spectrum
Fernando, Sharmanthie [Department of Physics and Geology, Northern Kentucky University, Highland Heights, Kentucky 41099 (United States)
2009-06-15T23:59:59.000Z
We have studied the perturbation of a spinning dilaton black hole in 2+1 dimensions by a massless scalar field. The wave equations of a massless scalar field is shown to be exactly solvable in terms of hypergeometric functions. The quasinormal frequencies are computed for slowly spinning black holes. The stability of the black hole is discussed. The asymptotic form of the quasinormal frequencies are evaluated. The area spectrum of the quantum black holes are evaluated by using the asymptotic quasinormal frequencies and is shown to be equally spaced.
2014 Manufacturing Energy and Carbon Footprints: Definitions...
Broader source: Energy.gov (indexed) [DOE]
and Assumptions A number of key terms are used to interpret the manufacturing energy and carbon footprints. The terms associated with the energy footprint analysis are...
Root Cause Analysis: Terms and Definitions, Accimaps, MES, SOL and WBA Peter Bernard Ladkin
Ladkin, Peter B.
include the Piper Alpha oil-rig accident, the Kings Cross underground-station fire, and the Ladbroke Grove by Justice Peter McInerney). In other industrial cases, there are agreements or laws in place which require techniques used for quality control are largely simpler, less resource-intensive, but equally less
Tullos, Desiree
are permeable pavers, pervious concrete, porous asphalt and gravel. 11. stormwater runoff using rain gardens, planters, swales, porous pavement, tree canopy and other methods. #12;10. porous pavement - Surface to walk, drive or park
First Draft 06/05/13 Definitions of Relevant Terms for the Observation Network and Fixed
reveals quality assurance checks, and the Map tab takes you to the map of the endurance stations which on norms, principles, values, and rules. The Science and Technology University Research Network (SATURN
The fractal dimension of the spectrum of quasiperiodical schrodinger operators
Laurent Marin
2012-02-20T23:59:59.000Z
We study the fractal dimension of the spectrum of a quasiperiodical Schrodinger operator associated to a sturmian potential. We consider potential defined with irrationnal number verifying a generic diophantine condition. We recall how shape and box dimension of the spectrum is linked to the irrational number properties. In the first place, we give general lower bound of the box dimension of the spectrum, true for all irrational numbers. In the second place, we improve this lower bound for almost all irrational numbers. We finally recall dynamical implication of the first bound.
Physical Interpretation of the 26 Dimensions of Bosonic String Theory
Frank D. Smith Jr
2002-07-15T23:59:59.000Z
The 26 dimensions of Closed Unoriented Bosonic String Theory are interpreted as the 26 dimensions of the traceless Jordan algebra J3(O)o of 3x3 Octonionic matrices, with each of the 3 Octonionic dimenisons of J3(O)o having the following physical interpretation: 4-dimensional physical spacetime plus 4-dimensional internal symmetry space; 8 first-generation fermion particles; 8 first-generation fermion anti-particles. This interpretation is consistent with interpreting the strings as World Lines of the Worlds of Many-Worlds Quantum Theory and the 26 dimensions as the degrees of freedom of the Worlds of the Many-Worlds.
Extremal charged rotating dilaton black holes in odd dimensions
Allahverdizadeh, Masoud; Kunz, Jutta; Navarro-Lerida, Francisco [Institut fuer Physik, Universitaet Oldenburg, Postfach 2503 D-26111 Oldenburg (Germany); Departamento de Fisica Atomica, Molecular y Nuclear, Ciencias Fisicas Universidad Complutense de Madrid, E-28040 Madrid (Spain)
2010-09-15T23:59:59.000Z
Employing higher-order perturbation theory, we find a new class of charged rotating black hole solutions of Einstein-Maxwell-dilaton theory with general dilaton coupling constant. Starting from the Myers-Perry solutions, we use the electric charge as the perturbative parameter, and focus on extremal black holes with equal-magnitude angular momenta in odd dimensions. We perform the perturbations up to 4th order for black holes in 5 dimensions and up to 3rd order in higher odd dimensions. We calculate the physical properties of these black holes and study their dependence on the charge and the dilaton coupling constant.
Extremal Charged Rotating Dilaton Black Holes in Odd Dimensions
Masoud Allahverdizadeh; Jutta Kunz; Francisco Navarro-Lerida
2010-07-24T23:59:59.000Z
Employing higher order perturbation theory, we find a new class of charged rotating black hole solutions of Einstein-Maxwell-dilaton theory with general dilaton coupling constant. Starting from the Myers-Perry solutions, we use the electric charge as the perturbative parameter, and focus on extremal black holes with equal-magnitude angular momenta in odd dimensions. We perform the perturbations up to 4th order for black holes in 5 dimensions and up to 3rd order in higher odd dimensions. We calculate the physical properties of these black holes and study their dependence on the charge and the dilaton coupling constant.
Development of a Humid Climate Definition
Hedrick, R. L.; Shirey, D. B.
1998-01-01T23:59:59.000Z
located in humid climates. The draft standard included a definition of humid climate: where, during the warmest six consecutive months of a typical year, the wetbulb temperature is 19癈 (67癋) or higher for 3500 hours or more, or 23癈 (73癋) or higher...
Pink Eye Conjunctivitis Definition, Symptoms and Causes
Suzuki, Masatsugu
Pink Eye 颅 Conjunctivitis Definition, Symptoms and Causes Pink eye is the common name given to inflammation of the conjunctiva of the eye. It is otherwise called conjunctivitis. The conjunctiva is the transparent membrane that lines the eyelids and covers the whites of the eyes. Very small, superficial blood
JOINT DEGREE PROGRAMS DEFINITION AND POLICY
Omiecinski, Curtis
1 JOINT DEGREE PROGRAMS DEFINITION AND POLICY: Within the fields of medicine and law, dual training for such complementary training can be demonstrated, the creation of a formal "Joint" degree program in which students or MD) offered at Penn State may be warranted. Such Joint degree programs enhance the educational
GENERAL PROVISIONS Section 1-1 Definitions.
for Research; and University General Counsel and Vice President for Legal Affairs. i. "Chancellors" means1-1 CHAPTER 1 GENERAL PROVISIONS Section 1-1 Definitions. The words and phrases in the Board of these principles, laws and policies once approved by the Board. Therefore, the interpretation of all Board policies
Business Practice Manual for Definitions & Acronyms
Tesfatsion, Leigh
Janaury 21, 2011 #12;CAISO Business Practice Manual BPM for Definitions & Acronyms Version 76 Last Revised: March 31, 2009 BPM Owner: Mike Dozier BPM Owner's Title: Senior Counsel Revision History Version Date Description 2 2009-12-18 Incorporating payment acceleration language submitted in BPM PRR 122
Congestion pricing : policy dimensions, public rejection and impacts
Chingcuanco, Franco (Franco Felipe)
2014-01-01T23:59:59.000Z
This thesis makes three related contributions to the broad literature on congestion pricing. First, it examines three policy dimensions that underlie pricing: the economic arguments that motivate it, the technological ...
The Size of Compact Extra Dimensions from Blackbody Radiation Laws
Ramaton Ramos; Henrique Boschi-Filho
2014-04-28T23:59:59.000Z
In this work we generalize the Stefan-Boltzmann and Wien's displacement laws for a $D$-dimensional manifold composed by 4 non-compact dimensions and $D-4$ compact dimensions, $ R^{1,3}$ x $T^{D-4} $. The electromagnetic field is assumed to pervade all compact and non-compact dimensions. In particular, the total radiated power becomes $ R(T) = \\sigma_B T^4 + \\sigma_D (a) \\, T^D $, where $a$ is the size of the compact extra dimensions. For $D=10$, predicted from String Theory, and $D=11$, from M-Theory, the outcomes agree with available experimental data for $a$ as high as 2 x $10^{-7}$m.
STABILITY OF EQUILIBRIA IN ONE DIMENSION FOR DIBLOCK COPOLYMER EQUATION
Sander, Evelyn
STABILITY OF EQUILIBRIA IN ONE DIMENSION FOR DIBLOCK COPOLYMER EQUATION Olga Stulov Department for numerically. The various sets of the solutions of the linearized model were found by means of software AUTO
TASI 2004 Lectures on the Phenomenology of Extra Dimensions
Graham D. Kribs
2006-05-30T23:59:59.000Z
The phenomenology of large, warped, and universal extra dimensions is reviewed. Characteristic signals are emphasized rather than an extensive survey. This is the writeup of lectures given at the Theoretical Advanced Study Institute in 2004.
The Higgs boson as a gauge field in extra dimensions
Marco Serone
2005-08-29T23:59:59.000Z
I review, at a general non-technical level, the main properties of models in extra dimensions where the Higgs field is identified with some internal component of a gauge field.
A REPORT ON CRITICAL DIMENSIONS OF CYLINDERS | OSTI, US Dept...
Office of Scientific and Technical Information (OSTI)
DIMENSIONS OF CYLINDERS Re-direct Destination: Temp Data Fields Keen, R. C. Temp Data Storage 3: Oak Ridge National Lab., TN (US) Short URL for this Page http:t.osti.gov3rH...
Wave propagation in periodic lattices with defects of smaller dimension
A. A. Kutsenko
2013-05-20T23:59:59.000Z
The procedure of evaluating of the spectrum for discrete periodic operators perturbed by operators of smaller dimensions is obtained. This result allows to obtain propagative, guided, localised spectra for different kind of physical operators on graphs with defects.
Energy definition for quadratic curvature gravities
Ahmet Baykal
2012-12-03T23:59:59.000Z
A conserved current for generic quadratic curvature gravitational models is defined, and it is shown that, at the linearized level, it corresponds to the Deser-Tekin charges. An explicit expression for the charge for new massive gravity in three dimensions is given. Some implications of the linearized equations are discussed.
Definitional Reflection and the Completion Peter Schroeder-Heister *
Schroeder-Heister, Peter
/11-1, and by Esprit Basic Research Working Group 7232 (GENTZEN). #12;334 which is the completed definition
Fractal dimension of interstellar clouds: opacity and noise effects
Nestor Sanchez; Emilio J. Alfaro; Enrique Perez
2006-10-20T23:59:59.000Z
There exists observational evidence that the interstellar medium has a fractal structure in a wide range of spatial scales. The measurement of the fractal dimension (Df) of interstellar clouds is a simple way to characterize this fractal structure, but several factors, both intrinsic to the clouds and to the observations, may contribute to affect the values obtained. In this work we study the effects that opacity and noise have on the determination of Df. We focus on two different fractal dimension estimators: the perimeter-area based dimension (Dper) and the mass-size dimension (Dm). We first use simulated fractal clouds to show that opacity does not affect the estimation of Dper. However, Dm tends to increase as opacity increases and this estimator fails when applied to optically thick regions. In addition, very noisy maps can seriously affect the estimation of both Dper and Dm, decreasing the final estimation of Df. We apply these methods to emission maps of Ophiuchus, Perseus and Orion molecular clouds in different molecular lines and we obtain that the fractal dimension is always in the range 2.6 2.3) average fractal dimension for the interstellar medium, as traced by different chemical species.
Formal definition of POTENTIAL ENERGY (valid for conservative forces only)
page - 16 Formal definition of POTENTIAL ENERGY (valid for conservative forces only) Given one type of conservative force F UB - UA= - = - Definition of 'Potential energy difference" conserv #12;page - 17 the definition of the "potential energy difference UB - UA " as equal to negative value of the work W done
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011 Mon, 11/28/2011 -April2012-Long-Term-NTSA Sign In
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D ELong Term Care |
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus TomAboutManusScience and How ToMayTen-Year Site PlansTerms and
Margin of Safety Definition and Examples Used in Safety Basis Documents and the USQ Process
Beaulieu, R. A.
2013-10-03T23:59:59.000Z
The Nuclear Safety Management final rule, 10 CFR 830, provides an undefined term, margin of safety (MOS). Safe harbors listed in 10 CFR 830, Table 2, such as DOE?STD?3009 use but do not define the term. This lack of definition has created the need for the definition. This paper provides a definition of MOS and documents examples of MOS as applied in a U.S. Department of Energy (DOE) approved safety basis for an existing nuclear facility. If we understand what MOS looks like regarding Technical Safety Requirements (TSR) parameters, then it helps us compare against other parameters that do not involve a MOS. This paper also documents parameters that are not MOS. These criteria could be used to determine if an MOS exists in safety basis documents. This paper helps DOE, including the National Nuclear Security Administration (NNSA) and its contractors responsible for the safety basis improve safety basis documents and the unreviewed safety question (USQ) process with respect to MOS.
Short-term Forecasting of Offshore Wind Farm Production Developments of the Anemos Project
Paris-Sud XI, Universit茅 de
Short-term Forecasting of Offshore Wind Farm Production 颅 Developments of the Anemos Project J.a.brownsword@rl.ac.uk 6 Overspeed GmBH & Co.KG, 26129 Oldenburg, Germany Email: h.p.waldl@overspeed.de Key words: Offshore to the large dimensions of offshore wind farms, their electricity production must be known well in advance
Effective field theory for fluids: Hall viscosity from a Wess-Zumino-Witten term
Michael Geracie; Dam Thanh Son
2014-11-11T23:59:59.000Z
We propose an effective action that describe a relativistic fluid with Hall viscosity. The construction involves a Wess-Zumino-Witten term that exists only in (2+1) spacetime dimensions. We note that this formalism can accommodate only a Hall viscosity which is a homogeneous function of the entropy and particle number densities of degree one.
On the dimension of subspaces with bounded Schmidt rank
T. S. Cubitt; A. Montanaro; A. Winter
2007-06-05T23:59:59.000Z
We consider the question of how large a subspace of a given bipartite quantum system can be when the subspace contains only highly entangled states. This is motivated in part by results of Hayden et al., which show that in large d x d--dimensional systems there exist random subspaces of dimension almost d^2, all of whose states have entropy of entanglement at least log d - O(1). It is also related to results due to Parthasarathy on the dimension of completely entangled subspaces, which have connections with the construction of unextendible product bases. Here we take as entanglement measure the Schmidt rank, and determine, for every pair of local dimensions dA and dB, and every r, the largest dimension of a subspace consisting only of entangled states of Schmidt rank r or larger. This exact answer is a significant improvement on the best bounds that can be obtained using random subspace techniques. We also determine the converse: the largest dimension of a subspace with an upper bound on the Schmidt rank. Finally, we discuss the question of subspaces containing only states with Schmidt equal to r.
WHY do we live in 3+1 dimensions?
Nielsen, Holger Bech; Holger Bech Nielsen; Svend Erik Rugh
1994-01-01T23:59:59.000Z
abstract: Noticing that really the fermions of the Standard Model are best thought of as Weyl - rather than Dirac - particles (relative to fundamental scales located at some presumably very high energies) it becomes interesting that the experimental space-time dimension is singled out by the Weyl equation: It is observed that precisely in the experimentally true space-time dimensionality 4=3+1 the number of linearly independent matrices n_{Weyl}^2 dimensionized as the matrices in the Weyl equation equals the dimension d. So just in this dimension (in fact, also in a trivial case d=1) do the sigma-matrices of the Weyl-equation form a basis. It is also characteristic for this dimension that there is no degeneracy of helicity states of the Weyl spinor for all nonzero momenta. We would like to interpret these features to signal a special ``form stability'' of the Weyl equation in the phenomenologically true dimension of space-time. In an attempt of making this stability to occur in an as large as possible basin o...
Why Do We Live in 3+1 Dimensions?
Holger Bech Nielsen; Svend Erik Rugh
1994-07-03T23:59:59.000Z
Noticing that really the fermions of the Standard Model are best thought of as Weyl - rather than Dirac - particles (relative to fundamental scales located at some presumably very high energies) it becomes interesting that the experimental space-time dimension is singled out by the Weyl equation: It is observed that precisely in the experimentally true space-time dimensionality 4=3+1 the number of linearly independent matrices $n_{Weyl}^2$ dimensionized as the matrices in the Weyl equation equals the dimension $d$. So just in this dimension (in fact, also in a trivial case $d=1$) do the sigma-matrices of the Weyl-equation form a basis. It is also characteristic for this dimension that there is no degeneracy of helicity states of the Weyl spinor for all nonzero momenta. We would like to interpret these features to signal a special ``form stability'' of the Weyl equation in the phenomenologically true dimension of space-time. In an attempt of making this stability to occur in an as large as possible basin of allowed modifications we discuss whether it is possible to define what we could possibly mean by ``stability of Natural laws''.
A Generalized Contou-Carr鑢e Symbol and its Reciprocity Laws in Higher Dimensions.
Oliver Braunling; Michael Groechenig; Jesse Wolfson
We generalize the theory of Contou-Carr鑢e symbols to higher dimensions. To an $(n+1)$-tuple $f_0,\\dots,f_n \\in A((t_1))\\cdots((t_n))^{\\times}$, where $A$ denotes a commutative algebra over a field $k$, we associate an element $(f_0,\\dots,f_n) \\in A^{\\times}$, compatible with the higher tame symbol for $k = A$, and earlier constructions for $n = 1$, by Contou-Carr鑢e, and $n = 2$ by Osipov--Zhu. Our definition is based on the notion of \\emph{higher commutators} for central extensions of groups by spectra, thereby extending the approach of Arbarello--de Concini--Kac and Anderson--Pablos Romo. Following Beilinson--Bloch--Esnault for the case $n=1$, we allow $A$ to be arbitrary, and do not restrict to artinian $A$. Previous work of the authors on Tate objects in exact categories, and the index map in algebraic $K$-theory is essential in anchoring our approach to its predecessors. We also revisit categorical formal completions, in the context of stable $\\infty$-categories. Using these tools, we describe the higher Contou-Carr鑢e symbol as a composition of boundary maps in algebraic $K$-theory, and conclude the article by proving a version of Parshin--Kato reciprocity for higher Contou-Carr鑢e symbols.
On the selection of dimension reduction techniques for scientific applications
Fan, Y J; Kamath, C
2012-02-17T23:59:59.000Z
Many dimension reduction methods have been proposed to discover the intrinsic, lower dimensional structure of a high-dimensional dataset. However, determining critical features in datasets that consist of a large number of features is still a challenge. In this paper, through a series of carefully designed experiments on real-world datasets, we investigate the performance of different dimension reduction techniques, ranging from feature subset selection to methods that transform the features into a lower dimensional space. We also discuss methods that calculate the intrinsic dimensionality of a dataset in order to understand the reduced dimension. Using several evaluation strategies, we show how these different methods can provide useful insights into the data. These comparisons enable us to provide guidance to a user on the selection of a technique for their dataset.
Dark Energy from Casimir Energy on Noncommutative Extra Dimensions
S. Fabi; B. Harms; G. Karatheodoris
2006-07-20T23:59:59.000Z
We study the possibility that dark energy is a manifestation of the Casimir energy on extra dimensions with the topology of $S^2$. We consider our universe to be $M^4 \\times S^2$ and modify the geometry by introducing noncommutativity on the extra dimensions only, i.e. replacing $S^2$ with the fuzzy version $S_{F}^2$. We find the energy density as a function of the size of the representation $M+1$ of the algebra of $S_{F}^2$, and we calculate its value for the $M+1=2$ case. The value of the energy density turns out to be positive, i.e. provides dark energy, and the size of the extra dimensions agrees with the experimental limit. We also recover the correct commutative limit as the noncommutative parameter goes to zero.
Mass Terms in Two-Higgs Doublet Models
R. Santos; S. M. Oliveira; A. Barroso
2003-02-11T23:59:59.000Z
We take a closer look at the mass terms of all renormalizable and CP conserving two-Higgs doublet models (THDM). We show how some of the dimension two parameters in the potential can be set equal to zero leading to relations among the tree-level parameters of the potential. The different versions of the THDM obtained give rise to different amplitudes for physical processes. We will illustrate this with two examples. The first one is the one-loop weak correction to the top decay width, t -> b W. The second one is the decay h -> gamma gamma in the fermiophobic limit.
Sample Residential Program Term Sheet
Broader source: Energy.gov (indexed) [DOE]
Goal DRAFT U.S. DOE Sample Residential Program Term Sheet - DRAFT Introduction is seeking to develop an energy...
Ferber, M.; Graves, G.A. Jr.
1994-12-31T23:59:59.000Z
Land-based gas turbines are significantly different from automotive gas turbines in that they are designed to operate for 50,000 h or greater (compared to 5,000--10,000 h). The primary goal of this research is to determine the long-term survivability of ceramic materials for industrial gas turbine applications. Research activities in this program focus on the evaluation of the static tensile creep and stress rupture (SR) behavior of three commercially available structural ceramics which have been identified by the gas turbine manufacturers as leading candidates for use in industrial gas turbines. For each material investigated, a minimum of three temperatures and four stresses will be used to establish the stress and temperature sensitivities of the creep and SR behavior. Because existing data for many candidate structural ceramics are limited to testing times less than 2,000 h, this program will focus on extending these data to times on the order of 10,000 h, which represents the lower limit of operating time anticipated for ceramic blades and vanes in gas turbine engines. A secondary goal of the program will be to investigate the possibility of enhancing life prediction estimates by combining interrupted tensile SR tests and tensile dynamic fatigue tests in which tensile strength is measured as a function of stressing rate. The third goal of this program will be to investigate the effects of water vapor upon the SR behavior of the three structural ceramics chosen for the static tensile studies by measuring the flexural strength as a function of stressing rate at three temperatures.
EIA - Natural Gas Pipeline Network - Regional Definitions
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutron scattering characterizesAnalysis &MapMajorDefinitions Map
Table Definitions, Sources, and Explanatory Notes
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Table Definitions, Sources, and Explanatory Notes
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystallineForeign ObjectOUR Table 1.Number ofExports DefinitionsImports by
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Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
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Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
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Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
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Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteamYear Jan FebThousand CubicinResidual FuelYield Definitions
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Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
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Template:Definition | Open Energy Information
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformationInyoCoolingTowerWaterUseSummerConsumed Jump to:DOEInvolve Jump to:DtAddDefinition Jump
Favors from Facebook Friends: Unpacking Dimensions of Social Capital
Michigan, University of
capital [5, 14, 19]. Social capital is a conceptual framework that considers the resources held by thoseFavors from Facebook Friends: Unpacking Dimensions of Social Capital Yumi Jung, Rebecca Gray]@umich.edu ABSTRACT Past research has demonstrated a link between perceptions of social capital and use of the popular
Reliability: The Other Dimension of Quality William Q. Meeker
Reliability: The Other Dimension of Quality William Q. Meeker Department of Statistics Iowa State extension of the revolution in product quality is to turn focus to product reliability, which is defined the relationship between engineering quality and reliability and outline the role of statistics and statisticians
The 5th Dimension: Building Blocks for Smart Infrastructures
artifact. Obviously, since the books only pass the energy field of the reader for a few seconds, any formThe 5th Dimension: Building Blocks for Smart Infrastructures Marc Langheinrich ETH Zurich Institute example of such an interaction in 5D would be the following scenario: two "smart" (i.e., tagged) books
Liquid pair correlations in four spatial dimensions: Theory versus simulation
M. Heinen; J. Horbach; H. L鰓en
2014-11-06T23:59:59.000Z
Using liquid integral equation theory, we calculate the pair correlations of particles that interact via a smooth repulsive pair potential in d = 4 spatial dimensions. We discuss the performance of different closures for the Ornstein-Zernike equation, by comparing the results to computer simulation data. Our results are of relevance to understand crystal and glass formation in high-dimensional systems.
DIMENSIONS OF DISTRIBUTED LEADERSHIP IN THE SME CONTEXT
Mottram, Nigel
1 DIMENSIONS OF DISTRIBUTED LEADERSHIP IN THE SME CONTEXT Steve Kempster*, Jason Cope** and Ken IN THE SME CONTEXT Abstract. Entrepreneurial ventures are led as effectively by small teams as by individuals individual leadership within the SME context. The overlap between heroic individual leadership
EXTREMAL CONFIGURATIONS OF ROBOT ARMS IN THREE DIMENSIONS
Siersma, Dirk
EXTREMAL CONFIGURATIONS OF ROBOT ARMS IN THREE DIMENSIONS DIRK SIERSMA Abstract. We define a volume function for a robot arm in R3 and give geometric conditions for its critical points. 1. Introduction configurations of planar polygonal linkages and open robot arms considered as the critical points of the oriented
Singularity free stars in (2+1) dimensions
Farook Rahaman; Ayan Banerjee; Irina Radinschi; Sumita Banerjee; Soumendranath Ruz
2012-10-23T23:59:59.000Z
We present some new types of non-singular model for anisotropic stars with constant $\\Lambda $ and variable $\\Lambda$ based on the Krori and Barua (KB) metric in $(2+1)$ dimensions. The solutions obtained here satisfy all the regularity conditions and its simple analytical form helps us to study the various physical properties of the configuration.
A procedure to Estimate the Fractal Dimension of Waveforms
Carlos Sevcik
2010-03-27T23:59:59.000Z
A method is described for calculating the approximate fractal dimension from a set of N values y sampled from a waveform between time zero and t. The waveform was subjected to a double linear transformation that maps it into a unit square.
Dimensioning hospital wards using the Erlang loss model Corresponding author
-2006. Finally, we demonstrate the efficiency of merging departments. Keywords: hospital resource allocationDimensioning hospital wards using the Erlang loss model Corresponding author: A.M. de Bruin (MSc of Sciences Department of Mathematics Assistant professor Optimization of Business Processes L. van Zanten
Quantum Gravity in Three Dimensions from Higher-Spin Holography
Tan, Hai Siong
2013-01-01T23:59:59.000Z
Higher Spin Anti-de Sitter Gravity, JHEP 1012, 007 (2010)gravity in three dimensions from the per- spective of higher-spin holography in anti-gravity in three dimen- sions in the framework of higher-spin holography in anti-
The Post Anachronism: The Temporal Dimension of Facebook Privacy
Reiter, Michael
The Post Anachronism: The Temporal Dimension of Facebook Privacy Lujo Bauer , Lorrie Faith Cranor the audience and emphasis of Facebook posts change over time. In a 63-participant longitudinal study, par- ticipants gave their audience and emphasis preferences for up to ten of their Facebook posts in the week
Upper bounds for multiphase composites in any dimension
Luis Silvestre
2010-10-12T23:59:59.000Z
We prove a rigorous upper bound for the effective conductivity of an isotropic composite made of several isotropic components in any dimension. This upper bound coincides with the Hashin Shtrikman bound when the volume ratio of all phases but any two vanish.
Fractal dimension and turbulence in Giant HII Regions
Caicedo-Ortiz, H E; L髉ez-Bonilla, J; Casta馿da, H O
2015-01-01T23:59:59.000Z
We have measured the fractal dimensions of the Giant HII Regions Hubble X and Hubble V in NGC6822 using images obtained with the Hubble's Wide Field Planetary Camera 2 (WFPC2). These measures are associated with the turbulence observed in these regions, which is quantified through the velocity dispersion of emission lines in the visible. Our results suggest low turbulence behaviour.
Power: The New Dimension of Test Patrick GIRARD
Paris-Sud XI, Universit茅 de
1 Power: The New Dimension of Test Patrick GIRARD WRTLT 2008WRTLT 2008 颅颅 SapporoSapporo -- Japan;2 1. Relevance of power during test 2. Main test power issues 3. Reducing test power by dedicated techniques 4. Low Power Design and its implications on test 5. One step to the future Outline lirmm-00820640
DISORDERED BOSE EINSTEIN CONDENSATES WITH INTERACTION IN ONE DIMENSION
Boyer, Edmond
DISORDERED BOSE EINSTEIN CONDENSATES WITH INTERACTION IN ONE DIMENSION ROBERT SEIRINGER, JAKOB- Pitaevskii regime. We prove that Bose Einstein condensation survives even a strong random potential with a high density of scatterers. The character of the wave func- tion of the condensate, however, depends
Moving Canadian Oil to Markets: The Economic Dimensions
Calgary, University of
Moving Canadian Oil to Markets: The Economic Dimensions Panel Discussion Organized by the Schulich.policyschool.ca #12;Petroleum, a key economic driver Investment - $61 B invested in 2012; over 1/3 of total business investment in Canada Production and Value Added Direct GDP or value added typically over $115 B per year
Looking into Higher Dimensions: Research with Joseph McMoneagle
Bryan, Ronald
by nuclear reactors can travel as far as 25 light- years in solid lead before being deflected. Another at nuclear distances, and see into higher dimensions. To "calibrate" McMoneagle, I asked him three things (in, if not the best: Joseph McMoneagle. [Joe has published four interesting and informative books on remote viewing
Coset-Space String Compactification Leading To 14 Subcritical Dimensions
A. M. Gavrilik
2001-08-23T23:59:59.000Z
Using sigma-model approach, we study a class of coset spaces with torsion which compactify the D=26 closed bose-string theory. Requiring also that massless chiral fermions arise from the geometry/topology of coset space, we are left with the unique possibility: it implies D=14 subcritical dimensions and the isometry group G_2 X G_2.
Definition et unites Sources d'energie primaire
Ravelet, Florent
D磂finition et unit磂s Sources d'磂nergie primaire L'磂nergie dans une perspective historique Etat Laboratoire DynFluid, Arts et M磂tiers-ParisTech 19 f磂vrier 2014 F. Ravelet Energies #12;D磂finition et unit Energies #12;D磂finition et unit磂s Sources d'磂nergie primaire L'磂nergie dans une perspective historique
Quantum lattice gas model of Dirac particles in 1+1 dimensions
Jeffrey Yepez
2013-07-12T23:59:59.000Z
Presented is a quantum computing representation of Dirac particle dynamics. The approach employs an operator splitting method that is an analytically closed-form product decomposition of the unitary evolution operator. This allows the Dirac equation to be cast as a unitary finite-difference equation in a high-energy limit. The split evolution operator (with separate kinetic and interaction terms) is useful for efficient quantum simulation. For pedagogical purposes, here we restrict the treatment to Dirac particle dynamics in 1+1 spacetime dimensions. Independent derivations of the quantum algorithm are presented and the model's validity is tested in several quantum simulations by comparing the numerical results against analytical predictions. Using the relativistic quantum algorithm in the case when mc^2 >> pc, quantum simulations of a nonrelativistic particle in an external scalar square well and parabolic potential is presented.
Modified definition of group velocity and electromagnetic energy conservation equation
Changbiao Wang
2015-01-19T23:59:59.000Z
The classical definition of group velocity has two flaws: (a) the group velocity can be greater than the phase velocity in a non-dispersive, lossless, non-conducting, anisotropic uniform medium; (b) the definition is not consistent with the principle of relativity for a plane wave in a moving isotropic uniform medium. To remove the flaws, a modified definition is proposed. A criterion is set up to identify the justification of group velocity definition. A "superluminal power flow" is constructed to show that the electromagnetic energy conservation equation cannot uniquely define the power flow if the principle of Fermat is not taken into account.
Definition of heavy oil and natural bitumen
Meyer, R.F.
1988-08-01T23:59:59.000Z
Definition and categorization of heavy oils and natural bitumens are generally based on physical or chemical attributes or on methods of extraction. Ultimately, the hydrocarbon's chemical composition will govern both its physical state and the extraction technique applicable. These oils and bitumens closely resemble the residuum from wholecrude distillation to about 1,000/degree/F; if the residuum constitutes at least 15% of the crude, it is considered to be heavy. In this material is concentrated most of the trace elements, such as sulfur, oxygen, and nitrogen, and metals, such as nickel and vanadium. A widely used definition separates heavy oil from natural bitumen by viscosity, crude oil being less, and bitumen more viscous than 10,000 cp. Heavy crude then falls in the range 10/degree/-20/degree/ API inclusive and extra-heavy oil less than 10/degree/ API. Most natural bitumen is natural asphalt (tar sands, oil sands) and has been defined as rock containing hydrocarbons more viscous than 10,000 cp or else hydrocarbons that may be extracted from mined or quarried rock. Other natural bitumens are solids, such as gilsonite, grahamite, and ozokerite, which are distinguished by streak, fusibility, and solubility. The upper limit for heavy oil may also be set at 18/degree/ API, the approximate limit for recovery by waterflood.
D-3 FALL TERM TERM CR. COURSE DEPARTMENT
Cui, Yan
Community Oral Health Dr. P.N. Gregory 2 PDCH 302 Pediatric Dental Clinic* Pediatric Dentistry Dr. H.K. Sharp 1 PDCH 304 Patient Centered Dentistry Pediatric Dentistry Ms. M. Seeberg 2 PERI 301 Basic *Continues through Spring Term D-3 SPRING TERM 1 DSOM 305 Advanced Dental Radiology Oral Maxillofacial
D-3 FALL TERM TERM CR COURSE DEPARTMENT
Cui, Yan
Community Oral Health Dr. P.N. Gregory 2 PDCH 302 Pediatric Dental Clinic* Pediatric Dentistry Dr. H.K. Sharp 1 PDCH 304 Patient Centered Dentistry Pediatric Dentistry Ms. M. Seeberg 2 PERI 301 Basic *Continues through Spring Term D-3 SPRING TERM 1 DSOM 305 Advanced Dental Radiology Oral Maxillofacial
Stable heteronuclear few-atom bound states in mixed dimensions
Yin Tao; Zhang Peng; Zhang Wei [Department of Physics, Renmin University of China, Beijing 100872 (China)
2011-11-15T23:59:59.000Z
We study few-body problems in mixed dimensions where two or three heavy atoms are trapped individually in parallel one-dimensional tubes or two-dimensional disks and a single light atom travels freely in three dimensions. Using the Born-Oppenheimer approximation, we find three- and four-body bound states for a broad parameter region. Specifically, the existence of trimer and tetramer states persists to the negative scattering length regime, where no two-body bound state is present. As pointed out by Y. Nishida in an earlier work [Phys. Rev. A 82, 011605(R) (2010)], these few-body bound states are stable against three-body recombination due to geometric separation. In addition, we find that the binding energy of the ground trimer and tetramer state reaches its maximum value when the scattering lengths are comparable to the separation between the low-dimensional traps.
Borromean ground state of fermions in two dimensions
A. G. Volosniev; D. V. Fedorov; A. S. Jensen; N. T. Zinner
2014-08-29T23:59:59.000Z
The study of quantum mechanical bound states is as old as quantum theory itself. Yet, it took many years to realize that three-body borromean systems that are bound when any two-body subsystem is unbound are abundant in nature. Here we demonstrate the existence of borromean systems of spin-polarized (spinless) identical fermions in two spatial dimensions. The ground state with zero orbital (planar) angular momentum exists in a borromean window between critical two- and three-body strengths. The doubly degenerate first excited states of angular momentum one appears only very close to the two-body threshold. They are the lowest in a possible sequence of so-called super-Efimov states. While the observation of the super-Efimov scaling could be very difficult, the borromean ground state should be observable in cold atomic gases and could be the basis for producing a quantum gas of three-body states in two dimensions.
Efficient Cluster Algorithm for Spin Glasses in Any Space Dimension
Zheng Zhu; Andrew J. Ochoa; Helmut G. Katzgraber
2015-01-22T23:59:59.000Z
Spin systems with frustration and disorder are notoriously difficult to study both analytically and numerically. While the simulation of ferromagnetic statistical mechanical models benefits greatly from cluster algorithms, these accelerated dynamics methods remain elusive for generic spin-glass-like systems. Here we present a cluster algorithm for Ising spin glasses that works in any space dimension and speeds up thermalization by several orders of magnitude at temperatures where thermalization is typically difficult. Our isoenergetic cluster moves are based on the Houdayer cluster algorithm for two-dimensional spin glasses and lead to a speedup over conventional state-of-the-art methods that increases with the system size. We illustrate the benefits of the isoenergetic cluster moves in two and three space dimensions, as well as the nonplanar Chimera topology found in the D-Wave quantum annealing machine.
1.0 Introduction 1.1 Definition of Nanotechnology
1 1.0 Introduction 1.1 Definition of Nanotechnology Nanotechnology is the art and science improvements in technologies for protecting the environment. While many definitions for nanotechnology exist Nanotechnology Initiative (NNI), a U.S. Government research and development (R&D) program established
ARIES-CS MAINTENANCE SYSTEM DEFINITION AND ANALYSIS
ARIES-CS MAINTENANCE SYSTEM DEFINITION AND ANALYSIS LESTER M. WAGANER* and RICHARD J. PEIPERT, Jr in the electronic version. I. INTRODUCTION The ARIES studies, sponsored by the U.S. Depart- ment of Energy and led how the physics and coil definition determine and influence the power core elements. Especially
EXTENDING THE DEFINITION OF ENTROPY TO NONEQUILIBRIUM STEADY STATES.
## of #. Our definition is based on energy exchanged, uses the microscopic dynamics of the system, and agreesEXTENDING THE DEFINITION OF ENTROPY TO NONEQUILIBRIUM STEADY STATES. by David Ruelle* Abstract. We forces # and maintained at fixed kinetic energy (Hoover颅Evans isokinetic thermostat). We assume
Chen, Chien Peter [Department of Radiation Oncology, Scripps Clinic, San Diego, California (United States)] [Department of Radiation Oncology, Scripps Clinic, San Diego, California (United States); Weinberg, Vivian [Comprehensive Cancer Center Biostatistics Core, University of California桽an Francisco, San Francisco, California (United States)] [Comprehensive Cancer Center Biostatistics Core, University of California桽an Francisco, San Francisco, California (United States); Shinohara, Katsuto [Department of Urology, University of California桽an Francisco, San Francisco, California (United States)] [Department of Urology, University of California桽an Francisco, San Francisco, California (United States); Roach, Mack; Nash, Marc; Gottschalk, Alexander; Chang, Albert J. [Department of Radiation Oncology, University of California桽an Francisco, San Francisco, California (United States)] [Department of Radiation Oncology, University of California桽an Francisco, San Francisco, California (United States); Hsu, I-Chow, E-mail: IHsu@radonc.ucsf.edu [Department of Radiation Oncology, University of California桽an Francisco, San Francisco, California (United States)] [Department of Radiation Oncology, University of California桽an Francisco, San Francisco, California (United States)
2013-06-01T23:59:59.000Z
Purpose: Evaluate efficacy and toxicity of salvage high-dose-rate brachytherapy (HDRB) for locally recurrent prostate cancer after definitive radiation therapy (RT). Methods and Materials: We retrospectively analyzed 52 consecutively accrued patients undergoing salvage HDRB between 1998 and 2009 for locally recurrent prostate cancer after previous definitive RT. After pathologic confirmation of locally recurrent disease, patients received 36 Gy in 6 fractions. Twenty-four patients received neoadjuvant hormonal therapy before salvage, and no patients received adjuvant hormonal therapy. Determination of biochemical failure after salvage HDRB was based on the Phoenix definition. Overall survival (OS) and bF distributions were calculated using the Kaplan-Meier method. Univariate analyses were performed to identify predictors of biochemical control. Acute and late genitourinary (GU) and gastrointestinal (GI) toxicities, based on Common Terminology Criteria for Adverse Events (version 4), were documented. Results: Median follow-up after salvage HDRB was 59.6 months. The 5-year OS estimate was 92% (95% confidence interval [CI]: 80%-97%) with median survival not yet reached. Five-year biochemical control after salvage was 51% (95% CI: 34%-66%). Median PSA nadir postsalvage was 0.1 (range: 0-7.2) reached at a median of 10.2 months after completing HDRB. As for complications, acute and late grade 3 GU toxicities were observed in only 2% and 2%, respectively. No grade 2 or higher acute GI events and 4% grade 2 GI late events were observed. On univariate analysis, disease-free interval after initial definitive RT (P=.07), percent of positive cores at the time of diagnosis (P=.08), interval from first recurrence to salvage HDRB (P=.09), and pre-HDRB prostate-specific antigen (P=.07) were each of borderline significance in predicting biochemical control after salvage HDRB. Conclusions: Prostate HDRB is an effective salvage modality with relatively few long-term toxicities. We provide potential predictors of biochemical control for prostate salvage HDRB.
Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon
Broader source: Energy.gov [DOE]
Team Massachusetts is bringing a unique perspective to the Solar Decathlon this fall. You might say it is a fourth dimension because of the team抯 newly constructed 4D Home. But it could also be argued that it is because the Massachusetts College of Art and Design and University of Massachusetts Lowell are collaborating for the team抯 first entry into the biannual competition, and they抮e both public institutions.
A topological metric in 2+1-dimensions
Mazharimousavi, S Habib
2015-01-01T23:59:59.000Z
Real-valued triplet of scalar fields as source gives rise to a metric which tilts the scalar, not the light cone, in 2+1-dimensions. The topological metric is static, regular and characterized by an integer $\\kappa =\\pm 1,\\pm 2,...$. The problem is formulated as a harmonic map of Riemannian manifolds in which the integer $\\kappa $ equals to the degree of the map.
General relativity in two dimensions: A Hamilton-Jacobi analysis
Bertin, M.C., E-mail: mcbertin@gmail.co [Instituto de Fisica Teorica, UNESP - Sao Paulo State University, Caixa Postal 70532-2, 01156-970 Sao Paulo, SP (Brazil); Pimentel, B.M., E-mail: pimentel@ift.unesp.b [Instituto de Fisica Teorica, UNESP - Sao Paulo State University, Caixa Postal 70532-2, 01156-970 Sao Paulo, SP (Brazil); Pompeia, P.J., E-mail: pedro.pompeia@gmail.co [Divisao de Confiabilidade Metrologica Aeroespacial - Instituto de Fomento e Coordenacao Industrial, Praca Marechal Eduardo Gomes, 50 - Vila das Acacias, 12228-901 Sao Jose dos Campos, SP (Brazil)
2010-11-15T23:59:59.000Z
We analyzed the constraint structure of the Einstein-Hilbert first-order action in two dimensions using the Hamilton-Jacobi approach. We were able to find a set of involutive, as well as a set of non-involutive constraints. Using generalized brackets we showed how to assure integrability of the theory, to eliminate the set of non-involutive constraints and how to build the field equations.
Particles, Waves and Vacuum in Five Dimensions: A Status Report
Paul S. Wesson
2012-05-20T23:59:59.000Z
Since the 5D canonical metric embeds all 4D vacuum solutions of Einstein's equations, I review its application to the cosmological 'constant', quantized particles, deBroglie waves, scalar fields and wave-particle duality. There are several ways to ra-tionalize these things using an extra dimension. A possible explanation of wave-particle duality is that an observed particle manifests two isometries of flat 5D space in different 4D ways, one with waves and one without.
The Fractal Dimension of the Spectrum of the Fibonacci Hamiltonian
David Damanik; Mark Embree; Anton Gorodetski; Serguei Tcheremchantsev
2007-05-02T23:59:59.000Z
We study the spectrum of the Fibonacci Hamiltonian and prove upper and lower bounds for its fractal dimension in the large coupling regime. These bounds show that as $\\lambda \\to \\infty$, $\\dim (\\sigma(H_\\lambda)) \\cdot \\log \\lambda$ converges to an explicit constant ($\\approx 0.88137$). We also discuss consequences of these results for the rate of propagation of a wavepacket that evolves according to Schr\\"odinger dynamics generated by the Fibonacci Hamiltonian.
Fractal Zeta Functions and Complex Dimensions of Relative Fractal Drums
Michel L. Lapidus; Goran Radunovi?; Darko 巙brini?
2014-11-17T23:59:59.000Z
The theory of 'zeta functions of fractal strings' has been initiated by the first author in the early 1990s, and developed jointly with his collaborators during almost two decades of intensive research in numerous articles and several monographs. In 2009, the same author introduced a new class of zeta functions, called `distance zeta functions', which since then, has enabled us to extend the existing theory of zeta functions of fractal strings and sprays to arbitrary bounded (fractal) sets in Euclidean spaces of any dimension. A natural and closely related tool for the study of distance zeta functions is the class of 'tube zeta functions', defined using the tube function of a fractal set. These three classes of zeta functions, under the name of 'fractal zeta functions', exhibit deep connections with Minkowski contents and upper box dimensions, as well as, more generally, with the complex dimensions of fractal sets. Further extensions include zeta functions of relative fractal drums, the box dimension of which can assume negative values, including minus infinity. We also survey some results concerning the existence of the meromorphic extensions of the spectral zeta functions of fractal drums, based in an essential way on earlier results of the first author on the spectral (or eigenvalue) asymptotics of fractal drums. It follows from these results that the associated spectral zeta function has a (nontrivial) meromorphic extension, and we use some of our results about fractal zeta functions to show the new fact according to which the upper bound obtained for the corresponding abscissa of meromorphic convergence is optimal. Finally, we conclude this survey article by proposing several open problems and directions for future research in this area.
Auto-Concealment of Supersymmetry in Extra Dimensions
Savas Dimopoulos; Kiel Howe; John March-Russell; James Scoville
2014-12-02T23:59:59.000Z
In supersymmetric (SUSY) theories with extra dimensions the visible energy in sparticle decays can be significantly reduced and its energy distribution broadened, thus significantly weakening the present collider limits on SUSY. The mechanism applies when the lightest supersymmetric particle (LSP) is a bulk state-- e.g. a bulk modulino, axino, or gravitino-- the size of the extra dimensions larger than ~$10^{-14}$ cm, and for a broad variety of visible sparticle spectra. In such cases the lightest ordinary supersymmetric particle (LOSP), necessarily a brane-localised state, decays to the Kaluza-Klein (KK) discretuum of the LSP. This dynamically realises the compression mechanism for hiding SUSY as decays into the more numerous heavier KK LSP states are favored. We find LHC limits on right-handed slepton LOSPs evaporate, while LHC limits on stop LOSPs weaken to ~350-410 GeV compared to ~700 GeV for a stop decaying to a massless LSP. Similarly, for the searches we consider, present limits on direct production of degenerate first and second generation squarks drop to ~450 GeV compared to ~800 GeV for a squark decaying to a massless LSP. Auto-concealment typically works for a fundamental gravitational scale of $M_*$~10-100 TeV, a scale sufficiently high that traditional searches for signatures of extra dimensions are mostly avoided. If superpartners are discovered, their prompt, displaced, or stopped decays can also provide new search opportunities for extra dimensions with the potential to reach $M_*$~$10^9$ GeV. This mechanism applies more generally than just SUSY theories, pertaining to any theory where there is a discrete quantum number shared by both brane and bulk sectors.
Fractal dimensions of the galaxy distribution varying by steps?
Marie-Noelle Celerier; Reuben Thieberger
2005-04-20T23:59:59.000Z
The structure of the large scale distribution of the galaxies have been widely studied since the publication of the first catalogs. Since large redshift samples are available, their analyses seem to show fractal correlations up to the observational limits. The value of the fractal dimension(s) calculated by different authors have become the object of a large debate, as have been the value of the expected transition from fractality to a possible large scale homogeneity. Moreover, some authors have proposed that different scaling regimes might be discerned at different lenght scales. To go further on into this issue, we have applied the correlation integral method to the wider sample currently available. We therefore obtain a fractal dimension of the galaxy distribution which seems to vary by steps whose width might be related to the organization hierarchy observed for the galaxies. This result could explain some of the previous results obtained by other authors from the analyses of less complete catalogs and maybe reconcile their apparent discrepancy. However, the method applied here needs to be further checked, since it produces odd fluctuations at each transition scale, which need to be thoroughly explained.
Long-term environmental stewardship.
Nagy, Michael David
2010-08-01T23:59:59.000Z
The purpose of this Supplemental Information Source Document is to effectively describe Long-Term Environmental Stewardship (LTES) at Sandia National Laboratories/New Mexico (SNL/NM). More specifically, this document describes the LTES and Long-Term Stewardship (LTS) Programs, distinguishes between the LTES and LTS Programs, and summarizes the current status of the Environmental Restoration (ER) Project.
DETERMINING THE FRACTAL DIMENSION OF A TIME SERIES WITH A NEURAL NET
Danon, Yaron
DETERMINING THE FRACTAL DIMENSION OF A TIME SERIES WITH A NEURAL NET MARK J. EMBRECHTS AND YARON and require expert interaction for interpreting the calculated fractal dimension. Artificial neural nets (ANN) offer a fast and elegant way to estimate the fractal dimension of a time series. A backpropagation net
Burrow fractal dimension and foraging success in subterranean rodents: a simulation
Burrow fractal dimension and foraging success in subterranean rodents: a simulation S. C. Le Comber. Fractal dimension, which describes how a burrow explores the surrounding area in a way that is independent assumed that burrows of high fractal dimension will be associated with greater foraging success, this has
Texas at Austin. University of
Fractal dimension unscreened angles measured for radial viscous fingering Olivier Praud Harry, USA #Received November 2004; published July 2005# have examined fractal patterns formed injection experiments. fractal dimension D 0 of pattern large r / 1.70卤0.02. Further, generalized dimensions D pattern
Carpenter, Nichelle
2012-10-19T23:59:59.000Z
.e., task performance, citizenship performance, counterproductive work behavior, and withdrawal) were developed that integrated existing definitions of similar behaviors. Each definition reflects a parsimonious conceptualization of existing performance...
Curvature dark energy reconstruction through different cosmographic distance definitions
Salvatore Capozziello; Mariafelicia De Laurentis; Orlando Luongo
2014-06-26T23:59:59.000Z
In the context of $f(\\mathcal{R})$ gravity, dark energy is a geometrical fluid with negative equation of state. Since the function $f(\\mathcal{R})$ is not known \\emph{a priori}, the need of a model independent reconstruction of its shape represents a relevant technique to determine which $f(\\mathcal{R})$ model is really favored with respect to others. To this aim, we relate cosmography to a generic $f(\\mathcal R)$ and its derivatives in order to provide a model independent investigation at redshift $z \\sim 0$. Our analysis is based on the use of three different cosmological distance definitions, in order to alleviate the duality problem, i.e. the problem of which cosmological distance to use with specific cosmic data sets. We therefore consider the luminosity, $d_L$, flux, $d_F$, and angular, $d_A$, distances and we find numerical constraints by the Union 2.1 supernovae compilation and measurement of baryonic acoustic oscillations, at $z_{BAO}=0.35$. We notice that all distances reduce to the same expression, i.e. $d_{L;F;A}\\sim\\frac{1}{\\mathcal H_0}z$, at first order. Thus, to fix the cosmographic series of observables, we impose the initial value of $H_0$ by fitting $\\mathcal H_0$ through supernovae only, in the redshift regime $ztheoretical bounds, while its variation, namely the jerk parameter, is compatible with $j_0>1$. Finally, we infer the functional form of $f(\\mathcal{R})$ by means of a truncated polynomial approximation, in terms of fourth order scale factor $a(t)$.
Dawson, Jeff W.
laboratory and research facilities Carleton's laboratory and computer facilities are unparalleled association with, government organizations such as the National Research Council Canada. Your co Study Term 5 Dynamics of Machinery Mechanics of Solids II Systems and Simulation Electrical
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Method of forming cavitated objects of controlled dimension
Anderson, Paul R. (Toledo, OH); Miller, Wayne J. (Ann Arbor, MI)
1982-01-01T23:59:59.000Z
A method of controllably varying the dimensions of cavitated objects such as hollow spherical shells wherein a precursor shell is heated to a temperature above the shell softening temperature in an ambient atmosphere wherein the ratio of gases which are permeable through the shell wall at that temperature to gases which are impermeable through the shell wall is substantially greater than the corresponding ratio for gases contained within the precursor shell. As the shell expands, the partial pressures of permeable gases internally and externally of the shell approach and achieve equilibrium, so that the final shell size depends solely upon the difference in impermeable gas partial pressures and shell surface tension.
Search for universal extra dimensions in ppbar collisions
Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; /Oklahoma U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, Mark Raymond; /Illinois U., Chicago; Adams, Todd; /Florida State U.; Alexeev, Guennadi D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Augustana Coll., Sioux Falls; Alverson, George O.; /Northeastern U.; Aoki, Masato; /Fermilab; Askew, Andrew Warren; /Florida State U. /Stockholm U.
2011-12-01T23:59:59.000Z
We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of 7.3 fb{sup -1}, collected by the D0 detector at a p{bar p} center of mass energy of 1.96 TeV. The decay chain of KK particles can lead to a final state with two muons of the same charge. This signature is used to set a lower limit on the compactification scale of R{sup -1} > 260 GeV in a minimal UED model.
Method of forming cavitated objects of controlled dimension
Anderson, P.R.; Miller, W.J.
1981-02-11T23:59:59.000Z
A method is disclosed of controllably varying the dimensions of cavitated objects such as hollow spherical shells wherein a precursor shell is heated to a temperature above the shell softening temperature in an ambient atmosphere wherein the ratio of gases which are permeable through the shell wall at that temperature to gases which are impermeable through the shell wall is substantially greater than the corresponding ratio for gases contained within the precursor shell. As the shell expands, the partial pressures of permeable gases internally and externally of the shell approach and achieve equilibrium, so that the final shell size depends solely upon the difference in impermeable gas partial pressures and shell surface tension.
Near field optical probe for critical dimension measurements
Stallard, B.R.; Kaushik, S.
1999-05-18T23:59:59.000Z
A resonant planar optical waveguide probe for measuring critical dimensions on an object in the range of 100 nm and below is disclosed. The optical waveguide includes a central resonant cavity flanked by Bragg reflector layers with input and output means at either end. Light is supplied by a narrow bandwidth laser source. Light resonating in the cavity creates an evanescent electrical field. The object with the structures to be measured is translated past the resonant cavity. The refractive index contrasts presented by the structures perturb the field and cause variations in the intensity of the light in the cavity. The topography of the structures is determined from these variations. 8 figs.
Fractal Dimensions for Continuous Time Random Walk Limits
Mark M. Meerschaert; Erkan Nane; Yimin Xiao
2011-02-03T23:59:59.000Z
In a continuous time random walk (CTRW), each random jump follows a random waiting time. CTRW scaling limits are time-changed processes that model anomalous diffusion. The outer process describes particle jumps, and the non-Markovian inner process (or time change) accounts for waiting times between jumps. This paper studies fractal properties of the sample functions of a time-changed process, and establishes some general results on the Hausdorff and packing dimensions of its range and graph. Then those results are applied to CTRW scaling limits.
Inert scalar dark matter in an extra dimension inspired model
R. A. Lineros; F. A. Pereira dos Santos
2014-11-12T23:59:59.000Z
In this paper we analyze a dark matter model inspired by theories with extra dimensions. The dark matter candidate corresponds to the first Kaluza-Klein mode of a real scalar added to the Standard Model. The tower of new particles enriches the calculation of the relic abundance. For large mass splitting, the model converges to the predictions of the inert singlet dark matter model. For nearly degenerate mass spectrum, coannihilations increase the cross-sections used for direct and indirect dark matter searches. Moreover, the Kaluza-Klein zero mode can mix with the SM higgs and further constraints can be applied.
Phase Space and Jet Definitions in SCET
William Man-Yin Cheung; Michael Luke; Saba Zuberi
2009-10-13T23:59:59.000Z
We discuss consistent power counting for integrating soft and collinear degrees of freedom over arbitrary regions of phase space in the soft-collinear effective theory (SCET), and illustrate our results at one loop with several jet algorithms: JADE, Sterman-Weinberg and k_T. Consistently applying SCET power-counting in phase space, along with non-trivial zero-bin subtractions, prevents double-counting of final states. The resulting phase-space integrals over soft and collinear regions are individually ultraviolet divergent, but the phase-space ultraviolet divergences cancel in the sum. Whether the soft and collinear contributions are individually infrared safe depends on the jet definition. We show that while this is true at one loop for JADE and Sterman-Weinberg, the k_T algorithm does not factorize into individually infrared safe soft and collinear pieces in dimensional regularization. We point out that this statement depends on the ultraviolet regulator, and that in a cutoff scheme the soft functions are infrared safe.
Dimensionally continued Oppenheimer-Snyder gravitational collapse II: solutions in odd dimensions
Anderson Ilha; Antares Kleber; Jose' P. S. Lemos
1999-02-18T23:59:59.000Z
The Lovelock gravity extends the theory of general relativity to higher dimensions in such a way that the field equations remain of second order. The theory has many constant coefficients with no a priori meaning. Nevertheless it is possible to reduce them to two, the cosmological constant and Newton's constant. In this process one separates theories in even dimensions from theories in odd dimensions. In a previous work gravitational collapse in even dimensions was analysed. In this work attention is given to odd dimensions. It is found that black holes also emerge as the final state of gravitational collapse of a regular dust fluid.
Term statistics Zipf's law text statistics
Lu, Jianguo
Term statistics Zipf's law text statistics October 20, 2014 text statistics 1 / 19 #12;Term statistics Zipf's law Overview 1 Term statistics 2 Zipf's law text statistics 2 / 19 #12;Term statistics Zipf's law Outline 1 Term statistics 2 Zipf's law text statistics 3 / 19 #12;Term statistics Zipf's law Model
CircleKs DEFINITIVE vim Reference Version: 1.0
CircleKs DEFINITIVE vim Reference Version: 1.0 Major rules: 1. Vim has 2 modes: insert and command inserting text s! Cut character under cursor and start inserting text After youre in insert mode, vim
President's Commission on Sustainability Charter Article I Purpose and Definitions
Duchowski, Andrew T.
sustainability for public institutions of higher education. To creatively address sustainability, the PCS natural resources, and to integrate sustainability into existing educational, operational, researchPresident's Commission on Sustainability Charter Article I 颅 Purpose and Definitions Section 1
The Web Services Vision Definition of Web Services
Cheverst, Keith
1 The Web Services Vision Overview Definition of Web Services Key concepts Difference from traditional web model Context Service-oriented architecture Distributed computing Overview Microsoft .NET vision Web Services Difference from traditional web model Context Service-oriented architecture
Black holes with gravitational hair in higher dimensions
Anabalon, Andres [Departamento de Ciencias Facultad de Artes Liberales, Facultad de Ingenieria y Ciencias, Universidad Adolfo Ibanez, Vina Del Mar (Chile); Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, Am Muehlenberg 1 D-14476 Golm (Germany); Canfora, Fabrizio [Centro de Estudios Cientificos (CECS), Casilla 1469 Valdivia (Chile); Giacomini, Alex; Oliva, Julio [Instituto de Ciencias Fisicas y Matematicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia (Chile)
2011-10-15T23:59:59.000Z
A new class of vacuum black holes for the most general gravity theory leading to second order field equations in the metric in even dimensions is presented. These space-times are locally anti-de Sitter in the asymptotic region, and are characterized by a continuous parameter that does not enter in the conserve charges, nor it can be reabsorbed by a coordinate transformation: it is therefore a purely gravitational hair. The black holes are constructed as a warped product of a two-dimensional space-time, which resembles the r-t plane of the Banados-Teitelboim-Zanelli black hole, times a warp factor multiplying the metric of a D-2-dimensional Euclidean base manifold, which is restricted by a scalar equation. It is shown that all the Noether charges vanish. Furthermore, this is consistent with the Euclidean action approach: even though the black hole has a finite temperature, both the entropy and the mass vanish. Interesting examples of base manifolds are given in eight dimensions which are products of Thurston geometries, giving then a nontrivial topology to the black hole horizon. The possibility of introducing a torsional hair for these solutions is also discussed.
Double Shell Tank (DST) Process Waste Sampling Subsystem Definition Report
RASMUSSEN, J.H.
2000-04-25T23:59:59.000Z
This report defines the Double-Shell Tank (DST) Process Waste Sampling Subsystem (PWSS). This subsystem definition report fully describes and identifies the system boundaries of the PWSS. This definition provides a basis for developing functional, performance, and test requirements (i.e., subsystem specification), as necessary, for the PWSS. The resultant PWSS specification will include the sampling requirements to support the transfer of waste from the DSTs to the Privatization Contractor during Phase 1 of Waste Feed Delivery.
The Navier-Stokes problem modified by an absorption term
Hermenegildo Borges de Oliveira
2009-03-31T23:59:59.000Z
In this work we consider the Navier-Stokes problem modified by the absorption term $|\\textbf{u}|^{\\sigma-2}\\textbf{u}$, where $\\sigma>1$, which is introduced in the momentum equation. % For this new problem, we prove the existence of weak solutions for any dimension $N\\geq 2$ and its uniqueness for N=2. % Then we prove that, for zero body forces, the weak solutions extinct in a finite time if $12$. % We prove also that for a general non-zero body forces, the weak solutions exponentially decay in time for any $\\sigma>1$. In the special case of a suitable forces field which vanishes at some instant, we prove that the weak solutions extinct at the same instant provided $1<\\sigma<2$.
Dawson, Jeff W.
planet is in need of clean and renewable sources of energy such as wind, solar, geothermal, tidal and Renewable Energy Sources Electrical Power Engineering Study Term 6 Probability and Statistics Systems and biomass. Carleton University's program in Sustainable and Renewable Energy Engineering provides you
Electrochemical Biosensors: Recommended Definitions and Classification
Wilson, George S.; Thé venot, Daniel R.; Toth, Klara; Durst, Richard A.
1999-01-01T23:59:59.000Z
of the general signi甤ance of the word, a transducer provides bidirectional signal transfer (non-electrical to electrical and vice versa); the transducer part of a sensor is also called a detector, sensor or electrode, but the term transducer is preferred... with an electrochemical transducer (Table 2). It is considered to be a chemically modi甧d electrode (CME) [4,5] as electronic conducting, semiconducting or ionic conducting material is coated with a biochemical 甽m. A biosensor is an integrated receptor眛ransducer device...
Dirac equation in low dimensions: The factorization method
J. A. Sanchez-Monroy; C. J. Quimbay
2014-09-30T23:59:59.000Z
We present a general approach to solve the (1+1) and (2+1)-dimensional Dirac equation in the presence of static scalar, pseudoscalar and gauge potentials, for the case in which the potentials have the same functional form and thus the factorization method can be applied. We show that the presence of electric potentials in the Dirac equation leads to a two Klein-Gordon equations including an energy-dependent potential. We then generalize the factorization method for the case of energy-dependent Hamiltonians. Additionally, the shape invariance is generalized for a specific class of energy-dependent Hamiltonians. We also present a condition for the absence of the Klein's paradox (stability of the Dirac sea), showing how Dirac particles in low dimensions can be confined for a wide family of potentials.
Detecting Vanishing Dimensions Via Primordial Gravitational Wave Astronomy
Jonas R. Mureika; Dejan Stojkovic
2011-02-16T23:59:59.000Z
Lower-dimensionality at higher energies has manifold theoretical advantages as recently pointed out. Moreover, it appears that experimental evidence may already exists for it - a statistically significant planar alignment of events with energies higher than TeV has been observed in some earlier cosmic ray experiments. We propose a robust and independent test for this new paradigm. Since (2+1)-dimensional spacetimes have no gravitational degrees of freedom, gravity waves cannot be produced in that epoch. This places a universal maximum frequency at which primordial waves can propagate, marked by the transition between dimensions. We show that this cut-off frequency may be accessible to future gravitational wave detectors such as LISA.
Higher Derivative Corrections to Charged Fluids in 2n Dimensions
Nabamita Banerjee; Suvankar Dutta; Akash Jain
2015-02-25T23:59:59.000Z
We study anomalous charged fluid in $2n$-dimensions ($n\\geq 2$) up to sub-leading derivative order. Only the effect of gauge anomaly is important at this order. Using the Euclidean partition function formalism, we find the constraints on different sub-leading order transport coefficients appearing in parity-even and odd sectors of the fluid. We introduce a new mechanism to count different fluid data at arbitrary derivative order. We show that only the knowledge of independent scalar-data is sufficient to find the constraints. In appendix we further extend this analysis to obtain fluid data at sub-sub-leading order (where both gauge and gravitational anomaly contribute) for parity-odd fluid.
Higher Derivative Corrections to Charged Fluids in 2n Dimensions
Banerjee, Nabamita; Jain, Akash
2015-01-01T23:59:59.000Z
We study anomalous charged fluid in $2n$-dimensions ($n\\geq 2$) up to sub-leading derivative order. Only the effect of gauge anomaly is important at this order. Using the Euclidean partition function formalism, we find the constraints on different sub-leading order transport coefficients appearing in parity-even and odd sectors of the fluid. We introduce a new mechanism to count different fluid data at arbitrary derivative order. We show that only the knowledge of independent scalar-data is sufficient to find the constraints. In appendix we further extend this analysis to obtain fluid data at sub-sub-leading order (where both gauge and gravitational anomaly contribute) for parity-odd fluid.
Higher Derivative Corrections to Charged Fluids in 2n Dimensions
Nabamita Banerjee; Suvankar Dutta; Akash Jain
2015-01-31T23:59:59.000Z
We study anomalous charged fluid in $2n$-dimensions ($n\\geq 2$) up to sub-leading derivative order. Only the effect of gauge anomaly is important at this order. Using the Euclidean partition function formalism, we find the constraints on different sub-leading order transport coefficients appearing in parity-even and odd sectors of the fluid. We introduce a new mechanism to count different fluid data at arbitrary derivative order. We show that only the knowledge of independent scalar-data is sufficient to find the constraints. In appendix we further extend this analysis to obtain fluid data at sub-sub-leading order (where both gauge and gravitational anomaly contribute) for parity-odd fluid.
Accident at Three Mile Island: the human dimensions
Sills, D.L.; Wolf, C.P.; Shelanski, V.B. (eds.)
1982-01-01T23:59:59.000Z
A separate abstract was prepared for each of the 19 chapters, divided according to the following Parts: (1) Public Perceptions of Nuclear Energy; (2) Local Responses to Nuclear Plants; (3) Institutional Responsibilities for Nuclear Energy; (4) The Interaction of Social and Technical Systems; and (5) Implications for Public Policy. All of the abstracts will appear in Energy Abstracts for Policy Analysis (EAPA); three will appear in Energy Research Abstracts (ERA). At the request of the President's Commission on the Accident at Three Mile Island (the Kemeny Commission), the Social Science Research Council commissioned social scientists to write a series of papers on the human dimensions of the event. This volume includes those papers, in revised and expanded form, and a comprehensive bibliography of published and unpublished social science research on the accident and its aftermath.
Scalar-Composite Model in 6 - 2?Dimensions
Keiichi Akama; Takashi Hattori
2006-08-12T23:59:59.000Z
We study the model of a composite-scalar made of a pair of scalar fields in 6-2 epsilon dimensions, using equivalence to the renormalizable three-elementary-scalar model under the "compositeness condition." In this model, the composite-scalar field is induced by the quantum effects through the vacuum polarization of elementary-scalar fields with 2N species. We first investigate scale dependences of the coupling constant and masses, in the renormalizable three-elementary-scalar model, and derive the results for the composite model by imposing the compositeness condition. The model exhibits the formerly found general property that the coupling constant of the composite field is independent of the scale.
Cross product in N Dimensions - the doublewedge product
Carlo Andrea Gonano; Riccardo Enrico Zich
2014-07-21T23:59:59.000Z
The cross product frequently occurs in Physics and Engineering, since it has large applications in many contexts, e.g. for calculating angular momenta, torques, rotations, volumes etc. Though this mathematical operator is widely used, it is commonly expressed in a 3-D notation which gives rise to many paradoxes and difficulties. In fact, instead of other vector operators like scalar product, the cross product is defined just in 3-D space, it does not respect reflection rules and invokes the concept of "handedness". In this paper we are going to present an extension of cross product in an arbitrary number N of spatial Dimensions, different from the one adopted in the Exterior Algebra and explicitly designed for an easy calculus of moments.
Black holes in extra dimensions can decay on the bulk
A. K. Chaudhuri
2003-01-08T23:59:59.000Z
In the extra dimensional theories, with TeV scale Plank constant, black holes may be produced in the Large Hadron Collider experiments. We have argued that in the d-dimensional black hole, the intrinsically 4-dimensional brane fields do not see the same geometry at the horizon, as in a 4-dimensional space-time. Kaluza-Klein modes invades the brane and surroundings and the brane fields can be considered as a thermal system at the temperature of the black hole. From energy and entropy consideration, we show that whether or not a six-dimensional black hole will decay by emitting Kaluza-Klein modes or the standard model particles, will depend on the length scale of the extra dimensions as well as on the mass of the black hole. For higher dimensional black holes, Kaluza-Klein modes will dominate the decay.
Extra dimensions and neutrinoless double beta decay experiments
Gozdz, Marek; Kaminski, Wieslaw A.; Faessler, Amand [Theoretical Physics Department, Maria Curie-Sklodowska University, Lublin (Poland); Institute fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)
2005-05-01T23:59:59.000Z
The neutrinoless double beta decay is one of the few phenomena, belonging to the nonstandard physics, which is extensively being sought for in experiments. In the present paper the link between the half-life of the neutrinoless double beta decay and theories with large extra dimensions is explored. The use of the sensitivities of currently planned 0{nu}2{beta} experiments: DAMA, CANDLES, COBRA, DCBA, CAMEO, GENIUS, GEM, MAJORANA, MOON, CUORE, EXO, and XMASS, gives the possibility for a nondirect 'experimental' verification of various extra dimensional scenarios. We discuss also the results of the Heidelberg-Moscow Collaboration. The calculations are based on the Majorana neutrino mass generation mechanism in the Arkani-Hamed-Dimopoulos-Dvali model.
Deformations of infrared-conformal theories in two dimensions
Oscar Akerlund; Philippe de Forcrand
2014-10-05T23:59:59.000Z
We study two exactly solvable two-dimensional conformal models, the critical Ising model and the Sommerfield model, on the lattice. We show that finite-size effects are important and depend on the aspect ratio of the lattice. In particular, we demonstrate how to obtain the correct massless behavior from an infinite tower of finite-size-induced masses and show that it is necessary to first take the cylindrical geometry limit in order to get correct results. In the Sommerfield model we also introduce a mass deformation to measure the mass anomalous dimension, $\\gamma_m$. We find that the explicit scale breaking of the lattice setup induces corrections which must be taken into account in order to reproduce $\\gamma_m$ at the infrared fixed point. These results can be used to improve the methodology in the search for the conformal window in QCD-like theories with many flavors.
Brane solutions of a spherical sigma model in six dimensions
Hyun Min Lee; Antonios Papazoglou
2004-11-16T23:59:59.000Z
We explore solutions of six dimensional gravity coupled to a non-linear sigma model, in the presence of co-dimension two branes. We investigate the compactifications induced by a spherical scalar manifold and analyze the conditions under which they are of finite volume and singularity free. We discuss the issue of single-valuedness of the scalar fields and provide some special embedding of the scalar manifold to the internal space which solves this problem. These brane solutions furnish some self-tuning features, however they do not provide a satisfactory explanation of the vanishing of the effective four dimensional cosmological constant. We discuss the properties of this model in relation with the self-tuning example based on a hyperbolic sigma model.
Inhomogeneous Cooling of the Rough Granular Gas in Two Dimensions
Sudhir N. Pathak; Dibyendu Das; R. Rajesh
2014-07-03T23:59:59.000Z
We study the inhomogeneous clustered regime of a freely cooling granular gas of rough particles in two dimensions using large-scale event driven simulations and scaling arguments. During collisions, rough particles dissipate energy in both the normal and tangential directions of collision. In the inhomogeneous regime, translational kinetic energy and the rotational energy decay with time $t$ as power-laws $t^{-\\theta_T}$ and $t^{-\\theta_R}$. We numerically determine $\\theta_T \\approx 1$ and $\\theta_R \\approx 1.6$, independent of the coefficients of restitution. The inhomogeneous regime of the granular gas has been argued to be describable by the ballistic aggregation problem, where particles coalesce on contact. Using scaling arguments, we predict $\\theta_T=1$ and $\\theta_R=1$ for ballistic aggregation, $\\theta_R$ being different from that obtained for the rough granular gas. Simulations of ballistic aggregation with rotational degrees of freedom are consistent with these exponents.
Fermion Generations from "Apple-Shaped" Extra Dimensions
Merab Gogberashvili; Pavle Midodashvili; Douglas Singleton
2007-08-13T23:59:59.000Z
We examine the behavior of fermions in the presence of an internal compact 2-manifold which in one of the spherical angles exhibits a conical character with an obtuse angle. The extra manifold can be pictured as an apple-like surface i.e. a sphere with an extra "wedge" insert. Such a surface has conical singularities at north and south poles. It is shown that for this setup one can obtain, in four dimensions, three trapped massless fermion modes which differ from each other by having different values of angular momentum with respect to the internal 2-manifold. The extra angular momentum acts as the family label and these three massless modes are interpreted as the three generations of fundamental fermions.
Sart, Remi
Approaches to Quantum Gravity, Clermont-Ferrand, Jan. 6, 2014 Fractal dimensions of 2d quantum gravity Timothy Budd Niels Bohr Institute, Copenhagen. budd@nbi.dk, http://www.nbi.dk/~budd/ #12;Outline Introduction to 2d gravity Fractal dimensions Hausdorff dimension dh "Teichm篓uller deformation dimension" d
The Need of Dark Energy for Dynamical Compactification of Extra Dimensions on the Brane
Cuadros-Melgar, B; Cuadros-Melgar, Bertha; Papantonopoulos, Eleftherios
2005-01-01T23:59:59.000Z
We consider a six-dimensional braneworld model and we study the cosmological evolution of a (4+1) brane-universe. Introducing matter on the brane we show that the scale factor of the physical three-dimensional brane-universe is related to the scale factor of the fourth dimension on the brane, and the suppression of the extra dimension compared to the three dimensions requires the presence of dark energy.
The Need of Dark Energy for Dynamical Compactification of Extra Dimensions on the Brane
Bertha Cuadros-Melgar; Eleftherios Papantonopoulos
2005-08-31T23:59:59.000Z
We consider a six-dimensional braneworld model and we study the cosmological evolution of a (4+1) brane-universe. Introducing matter on the brane we show that the scale factor of the physical three-dimensional brane-universe is related to the scale factor of the fourth dimension on the brane, and the suppression of the extra dimension compared to the three dimensions requires the presence of dark energy.
E-Print Network 3.0 - address human dimensions Sample Search...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
ON IMAGE PROCESSSING, VOL. 9, NO. 3, MARCH 2000 417 The Vocabulary and Grammar of Color Patterns Summary: , and 11. This dimension also highlights the sensitivity of the...
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1992-08-05T23:59:59.000Z
The Romanian Electricity Authority (RENEL) requested the assistance of the U.S. Trade and Development Program (TDP) in the form of a grant to support an Engineering/Economic Feasibility Study. The study would address the requirements to finance two large projects: The Tarnita-Lapustesti pumped storage project (1,000 MW) and the Olt five hydroelectric power plants (147.5 MW) located in the river sector Cornetu-Avrig. The report contains the findings and recommendations of the Definitional Mission (DM) team, the terms of reference for the study and recommended contractor selection procedure. The report also contains some background information which will help firms bidding and executing the study. The DM was to review and ascertain the merits of the proposed project, considering such key issues as technical feasibility, cost, project economics, project financing and social considerations.
Renewable Energy Specifications, Testing and Certification Terms...
Terms of Reference Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Specifications, Testing and Certification Terms of Reference Agency...
A study of the calculus of variations in two dimensions
Sims, Stillman Eugene
1962-01-01T23:59:59.000Z
it is again dealt with from all terms of (10) except those under the integral gives ? ( ? ) +27 ? (~ - y' ? + dp db dbms~& dbms dx dd yda. a. e d + P, (~2- y' ? 2- y" ( ? ) J + j [ ]dx, (14) I d2&&& dE dE. d6 'b a Eotioing that g - y" P, =P +P ths...
Find More Like This Table 1. Key dimensions of
p, 1 chart, 1 diagram, 9 graphs Document Type: Article Subject Terms: *EMISSIONS trading CARBON of economic burdens among nations; Influence of emissions trading on policy costs. Full Text Word Count: 10068 the reductions attained, and how policy costs may be influenced by emissions trading. We explore the sensitivity
Impact of Biodiesel on the Near-term Performance and Long-term...
Broader source: Energy.gov (indexed) [DOE]
Impact of Biodiesel on the Near-term Performance and Long-term Durability of Advanced Aftertreatment Systems Impact of Biodiesel on the Near-term Performance and Long-term...
Harold C. Steinacker; Jochen Zahn
2014-09-04T23:59:59.000Z
We find new vacuum solutions of ${\\cal N}=4$ super-Yang-Mills with totally anti-symmetric cubic soft SUSY breaking terms, or equivalently solutions of the IKKT matrix model of type $\\mathbb{R}^4_\\theta \\times {\\cal K}_N$ with flux terms. The solutions can be understood in terms of 4- and 6- dimensional fuzzy branes ${\\cal K}_N$ in extra dimensions, describing self-intersecting projections of compact flag manifolds of $SU(3)$. The 6-dimensional solutions provide a 6-fold covering of the internal space near the origin, while the 4-dimensional branes have a triple self-intersections spanning all 6 internal directions. The solutions have lower energy than the trivial vacuum, and we prove that there are no negative modes. The massless modes are identified explicitly. In particular there are chiral fermionic zero modes, linking the coincident sheets with opposite flux at the origin. They have a $\\mathbb{Z}_3$ family symmetry, originating from the Weyl group rotations.
Zero Energy Buildings: A Critical Look at the Definition; Preprint
Torcellini, P.; Pless, S.; Deru, M.; Crawley, D.
2006-06-01T23:59:59.000Z
A net zero-energy building (ZEB) is a residential or commercial building with greatly reduced energy needs through efficiency gains such that the balance of energy needs can be supplied with renewable technologies. Despite the excitement over the phrase ''zero energy'', we lack a common definition, or even a common understanding, of what it means. In this paper, we use a sample of current generation low-energy buildings to explore the concept of zero energy: what it means, why a clear and measurable definition is needed, and how we have progressed toward the ZEB goal.
Loan Terms | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty11.2.1310 DOEFunds WebinarsTerms
Gasoline and Diesel Fuel Update (EIA)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S. Natural GasquestionnairesquestionnairesGasA.San3 1 Short-Term Energy33
Gasoline and Diesel Fuel Update (EIA)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S. Natural GasquestionnairesquestionnairesGasA.San3 1 Short-Term
Gasoline and Diesel Fuel Update (EIA)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S. Natural GasquestionnairesquestionnairesGasA.San3 1 Short-Term(STEO)
Long-Term Environmental Stewardship
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D ELong Term Care
Gauge symmetries decrease the number of Dp-brane dimensions
Nikolic, B.; Sazdovic, B. [Institute of Physics, 11001 Belgrade, P.O. Box 57 (Serbia and Montenegro)
2006-08-15T23:59:59.000Z
It is known that the presence of the antisymmetric background field B{sub {mu}}{sub {nu}} leads to the noncommutativity of the Dp-brane manifold. The addition of the linear dilaton field in the form {phi}(x)={phi}{sub 0}+a{sub {mu}}x{sup {mu}} causes the appearance of the commutative Dp-brane coordinate x=a{sub {mu}}x{sup {mu}}. In the present article we show that for some particular choices of the background fields, a{sup 2}{identical_to}G{sup {mu}}{sup {nu}}a{sub {mu}}a{sub {nu}}=0 and a-tilde{sup 2}{identical_to}[(G-4BG{sup -1}B){sup -1}]{sup {mu}}{sup {nu}}a{sub {mu}}a{sub {nu}}=0, the local gauge symmetries appear in the theory. They turn some Neuman boundary conditions into the Dirichlet ones, and consequently decrease the number of the Dp-brane dimensions.
Extra Dimensions: 3D and Time in PDF Documentation
Graf, Norman A.; /SLAC
2011-11-10T23:59:59.000Z
High energy physics is replete with multi-dimensional information which is often poorly represented by the two dimensions of presentation slides and print media. Past efforts to disseminate such information to a wider audience have failed for a number of reasons, including a lack of standards which are easy to implement and have broad support. Adobe's Portable Document Format (PDF) has in recent years become the de facto standard for secure, dependable electronic information exchange. It has done so by creating an open format, providing support for multiple platforms and being reliable and extensible. By providing support for the ECMA standard Universal 3D (U3D) file format in its free Adobe Reader software, Adobe has made it easy to distribute and interact with 3D content. By providing support for scripting and animation, temporal data can also be easily distributed to a wide audience. In this talk, we present examples of HEP applications which take advantage of this functionality. We demonstrate how 3D detector elements can be documented, using either CAD drawings or other sources such as GEANT visualizations as input. Using this technique, higher dimensional data, such as LEGO plots or time-dependent information can be included in PDF files. In principle, a complete event display, with full interactivity, can be incorporated into a PDF file. This would allow the end user not only to customize the view and representation of the data, but to access the underlying data itself.
Refinements of the Weyl tensor classification in five dimensions
Alan Coley; Sigbjorn Hervik; Marcello Ortaggio; Lode Wylleman
2012-09-22T23:59:59.000Z
We refine the null alignment classification of the Weyl tensor of a five-dimensional spacetime. The paper focusses on the algebraically special alignment types {\\bf {N}}, {\\bf {III}}, {\\bf {II}} and {\\bf {D}}, while types {\\bf {I}} and {\\bf {G}} are briefly discussed. A first refinement is provided by the notion of spin type of the components of highest boost weight. Second, we analyze the Segre types of the Weyl operator acting on bivector space and examine the intersection with the spin type classification. We present a full treatment for types {\\bf {N}} and {\\bf {III}}, and illustrate the classification from different viewpoints (Segre type, rank, spin type) for types {\\bf {II}} and {\\bf {D}}, paying particular attention to possible nilpotence, which is a new feature of higher dimensions. We also point out other essential differences with the four-dimensional case. In passing, we exemplify the refined classification by mentioning the special subtypes associated to certain important spacetimes, such as Myers-Perry black holes, black strings, Robinson-Trautman spacetimes, and purely electric/magnetic type {\\bf {D}} spacetimes.
Thermodynamics of SU(3) Gauge Theory in 2 + 1 Dimensions
P. Bialas; L. Daniel; A. Morel; B. Petersson
2008-07-21T23:59:59.000Z
The pressure, and the energy and entropy densities are determined for the SU(3) gauge theory in $2 + 1$ dimensions from lattice Monte Carlo calculations in the interval $0.6 \\leq T/T_c \\leq 15$. The finite temperature lattices simulated have temporal extent $N_\\tau = 2, 4, 6$ and 8, and spatial volumes $N_S^2$ such that the aspect ratio is $N_S/N_\\tau = 8$. To obtain the thermodynamical quantities, we calculate the averages of the temporal plaquettes $P_\\tau$ and the spatial plaquettes $P_S$ on these lattices. We also need the zero temperature averages of the plaquettes $P_0$, calculated on symmetric lattices with $N_\\tau = N_S$. We discuss in detail the finite size ($N_S$-dependent) effects. These disappear exponentially. For the zero temperature lattices we find that the coefficient of $N_S$ in the exponent is of the order of the glueball mass. On the finite temperature lattices it lies between the two lowest screening masses. For the aspect ratio equal to eight, the systematic errors coming from the finite size effects are much smaller than our statistical errors. We argue that in the continuum limit, at high enough temperature, the pressure can be parametrized by the very simple formula $p=a-bT_c/T$ where $a$ and $b$ are two constants. Using the thermodynamical identities for a large homogeneous system, this parametrization then determines the other thermodynamical variables in the same temperature range.
Dimensions of Usability: Cougaar, Aglets and Adaptive Agent Architecture (AAA)
Haack, Jereme N.; Cowell, Andrew J.; Gorton, Ian
2004-06-20T23:59:59.000Z
Research and development organizations are constantly evaluating new technologies in order to implement the next generation of advanced applications. At Pacific Northwest National Laboratory, agent technologies are perceived as an approach that can provide a competitive advantage in the construction of highly sophisticated software systems in a range of application areas. An important factor in selecting a successful agent architecture is the level of support it provides the developer in respect to developer support, examples of use, integration into current workflow and community support. Without such assistance, the developer must invest more effort into learning instead of applying the technology. Like many other applied research organizations, our staff are not dedicated to a single project and must acquire new skills as required, underlining the importance of being able to quickly become proficient. A project was instigated to evaluate three candidate agent toolkits across the dimensions of support they provide. This paper reports on the outcomes of this evaluation and provides insights into the agent technologies evaluated.
Smoothed Particle Magnetohydrodynamics I. Algorithms and tests in one dimension
D. J. Price; J. J. Monaghan
2003-10-28T23:59:59.000Z
In this paper we show how the Smoothed Particle Hydrodynamics (SPH) equations for ideal magnetohydrodynamics (MHD) can be written in conservation form with the positivity of the dissipation guaranteed. We call the resulting algorithm Smoothed Particle Magnetohydrodynamics (SPMHD). The equations appear to be accurate, robust and easy to apply and do not suffer from the instabilities known to exist previously in formulations of the SPMHD equations. In addition we formulate our MHD equations such that errors associated with non-zero divergence of the magnetic field are naturally propagated by the flow and should therefore remain small. In this and a companion paper (Price and Monaghan 2003b) we present a wide range of numerical tests in one dimension to show that the algorithm gives very good results for one dimensional flows in both adiabatic and isothermal MHD. For the one dimensional tests the field structure is either two or three dimensional. The algorithm has many astrophysical applications and is particularly suited to star formation problems.
Global Fits of the Minimal Universal Extra Dimensions Scenario
Bertone, Gianfranco; /Zurich U. /Paris, Inst. Astrophys.; Kong, Kyoungchul; /SLAC /Kansas U.; de Austri, Roberto Ruiz; /Valencia U., IFIC; Trotta, Roberto; /Imperial Coll., London
2012-06-22T23:59:59.000Z
In theories with Universal Extra-Dimensions (UED), the {gamma}{sub 1} particle, first excited state of the hypercharge gauge boson, provides an excellent Dark Matter (DM) candidate. Here we use a modified version of the SuperBayeS code to perform a Bayesian analysis of the minimal UED scenario, in order to assess its detectability at accelerators and with DM experiments. We derive in particular the most probable range of mass and scattering cross sections off nucleons, keeping into account cosmological and electroweak precision constraints. The consequences for the detectability of the {gamma}{sub 1} with direct and indirect experiments are dramatic. The spin-independent cross section probability distribution peaks at {approx} 10{sup -11} pb, i.e. below the sensitivity of ton-scale experiments. The spin-dependent cross-section drives the predicted neutrino flux from the center of the Sun below the reach of present and upcoming experiments. The only strategy that remains open appears to be direct detection with ton-scale experiments sensitive to spin-dependent cross-sections. On the other hand, the LHC with 1 fb{sup -1} of data should be able to probe the current best-fit UED parameters.
Instabilities of (near) extremal rotating black holes in higher dimensions
Stefan Hollands; Akihiro Ishibashi
2014-08-04T23:59:59.000Z
Recently, Durkee and Reall have conjectured a criterion for linear instability of rotating, extremal, asymptotically Minkowskian black holes in $d\\ge 4$ dimensions, such as the Myers-Perry black holes. They considered a certain elliptic operator, $\\cal A$, acting on symmetric traceless tensors intrinsic to the horizon. Based in part on numerical evidence, they suggested that if the lowest eigenvalue, $\\lambda$, of this operator is less than the critical value $-1/4$ ( called "effective BF-bound"), then the black hole is linearly unstable. In this paper, we prove their conjecture. Our proof uses a combination of methods such as (i) the "canonical energy method" of Hollands-Wald, (ii) algebraically special properties of the near horizon geometries associated with the black hole, and (iii) the structure of the (linearized) constraint equations. Our method of proof is also applicable to rotating, extremal asymptotically Anti-deSitter black holes. In that case, our methods show that "all" such black holes are unstable. Although we explicitly discuss in this paper only extremal black holes, we argue that our methods can be generalized straightforwardly to obtain the same results for "near" extremal black holes.
Change of order for regular chains in positive dimension Xavier Dahan , Xin Jin
Moreno Maza, Marc
in dimension zero; 種ewton-Hensel lifting. Basic setup Let V be an irreducible variety of dimension r, defined, . . . , yr) kr , Ts(y, Z1, . . . , Zs) ... T1(y, Z1) Specialize and lift paradigm: intermediate computations. lift v in T; [dim. 1] 3. specialize w at a random value. [dim. 0] Algorithm Input. 稟 regular chain Tin
MEAN DIMENSION, MEAN RANK, AND VON NEUMANN-L UCK RANK
Li, Hanfeng
MEAN DIMENSION, MEAN RANK, AND VON NEUMANN-L 篓UCK RANK HANFENG LI AND BINGBING LIANG Abstract. We introduce an invariant, called mean rank, for any module M of the integral group ring of a discrete amenable group , as an analogue of the rank of an abelian group. It is shown that the mean dimension
DIMENSIONS: Why do we need a new Data Handling architecture for Sensor Networks?
Ganesan, Deepak
DIMENSIONS: Why do we need a new Data Handling architecture for Sensor Networks? Deepak Ganesan incorporate their ex- treme resource constraints - energy, storage and processing - and spatio-temporal interpretation of the physical world in the design, cost model, and metrics of evaluation. We describe DIMENSIONS
On ascertaining inductively the dimension of the joint kernel of certain commuting linear operators
Shen, Zuowei
On ascertaining inductively the dimension of the joint kernel of certain commuting linear operators), and a collection f`xgx2X of commuting linear maps on some linear space, the family of linear operators whose joint DMS-9000053, DMS-9102857. i #12;proposed running head: dimension of joint kernels Proofs should
Quasi-linear symmetric hyperbolic Fuchsian systems in several space dimensions
Ellery Ames; Florian Beyer; James Isenberg; Philippe G. LeFloch
2012-09-05T23:59:59.000Z
We establish existence and uniqueness results for the singular initial value problem associated with a class of quasilinear, symmetric hyperbolic, partial differential equations of Fuchsian type in several space dimensions. This is an extension of earlier work by the authors for the same problem in one space dimension.
Texas at Austin. University of
Fractal dimension and unscreened angles measured for radial viscous fingering Olivier Praud fractal patterns formed by the injection of air into oil in a thin 0.127 mm layer contained between two reaches r/b=900, are far larger than in past experiments. The fractal dimension D0 of the pattern
WILD ALGEBRAS HAVE ONE-POINT EXTENSIONS OF REPRESENTATION DIMENSION AT LEAST FOUR
Oppermann, Steffen
WILD ALGEBRAS HAVE ONE-POINT EXTENSIONS OF REPRESENTATION DIMENSION AT LEAST FOUR STEFFEN OPPERMANN Abstract. We show that any wild algebra has a one-point exten- sion of representation dimension at least between tame and wild representation type is another way of saying "how infinite" the representation
PHYSICAL REVIEW B 86, 184504 (2012) Topological excitonic superfluids in three dimensions
Gilbert, Matthew
PHYSICAL REVIEW B 86, 184504 (2012) Topological excitonic superfluids in three dimensions Youngseok exciton condensates within time-reversal invariant topological insulators in three spatial dimensions two-dimensional (2D) Dirac surface states separated by an insulating spacer.22颅26 Yet the existence
The Hausdorff dimension of the double points on the Brownian frontier
The Hausdorff dimension of the double points on the Brownian frontier Richard Kiefer RWE Power AG: The frontier of a planar Brownian motion is the boundary of the unbounded component of the complement of its range. In this paper we find the Hausdorff dimension of the set of double points on the frontier. MSC
The Dimension of the Brownian Frontier is Greater Than 1. Christopher J.
Pemantle, Robin
The Dimension of the Brownian Frontier is Greater Than 1. Christopher J. Bishopwithout loss of California. Abstract Consider a planar Brownian motion run for finite time. The frontier or ``outer boundary that the frontier has infinite length. We improve this by showing that the Hausdorff dimension of the frontier
Comment on the shape of Hydrogen equation in spaces of arbitrary dimension
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.
THE DEVIL扴 STAIRCASE DIMENSIONS AND MEASURE-THEORETICAL ENTROPY OF MAPS WITH HORIZONTAL GAP
Jung-chao Ban; Song-sun Lin
Abstract. This work elucidates the measure-theoretical entropy and dimensions of a unimodal map with a horizontal gap. The measure-theoretical entropy and dimensions of the Ft (which is defined later)are shown to form a devil抯 staircase structure with respect to the gap size t. Pesin抯 formula for gap maps is also considered. 1.
Process Dimension of Classical and Non-Commutative Processes Wolfgang Lohr1,2
#12;Process Dimension of Classical and Non-Commutative Processes Wolfgang L╫hr1,2 Arleta Szkola1-commutative generalisation, which we call NC-OOMs. A natural characteristic of a stochastic process in the context of classical OOM theory is the process dimension. We investigate its properties within the more general
The chromospherically active binary star EI Eridani I. Absolute dimensions
A. Washuettl; K. G. Strassmeier; T. Granzer; M. Weber; K. Ol醜
2008-09-04T23:59:59.000Z
We present a detailed determination of the astrophysical parameters of the chromospherically active binary star EI Eridani. Our new radial velocities allow to improve the set of orbital elements and reveal long-term variations of the barycentric velocity. A possible third-body orbit with a period of approximately 19 years is presented. Absolute parameters are determined in combination with the Hipparcos parallax. EI Eri's inclination angle of the rotational axis is confined to 56.0 plus/minus 4.5 degrees, its luminosity class IV is confirmed by its radius of 2.37 plus/minus 0.12 R_Sun. A comparison to theoretical stellar evolutionary tracks suggests a mass of 1.09 plus/minus 0.05 M_Sun and an age of approximately 6.15 Gyr. The present investigation is the basis of our long-term Doppler imaging study of its stellar surface.
Asymptotic High Energy Total Cross Sections and Theories with Extra Dimensions
J. Swain; A. Widom; Y. Srivastava
2014-10-05T23:59:59.000Z
The rate at which cross sections grow with energy is sensitive to the presence of extra dimensions in a rather model-independent fashion. We examine how rates would be expected to grow if there are more spatial dimensions than 3 which appear at some energy scale, making connections with black hole physics and string theory. We also review what is known about the corresponding generalization of the Froissart-Martin bound and the experimental status of high energy hadronic cross sections which appear to saturate it up to the experimentally accessible limit of 100 TeV. We discuss how extra dimensions can be searched for in high energy cross section data and find no room for large extra dimensions in present data. Any apparent signatures of extra dimensions at the LHC may have to be interpreted as due to some other form of new physics.
Efficient Scheme of Experimental Quantifying non-Markovianity in High-Dimension Systems
S. -J. Dong; B. -H. Liu; Y. -N. Sun; Y. -J. Han; G. -C. Guo; Lixin He
2015-01-29T23:59:59.000Z
The non-Markovianity is a prominent concept of the dynamics of the open quantum systems, which is of fundamental importance in quantum mechanics and quantum information. Despite of lots of efforts, the experimentally measuring of non-Markovianity of an open system is still limited to very small systems. Presently, it is still impossible to experimentally quantify the non-Markovianity of high dimension systems with the widely used Breuer-Laine-Piilo (BLP) trace distance measure. In this paper, we propose a method, combining experimental measurements and numerical calculations, that allow quantifying the non-Markovianity of a $N$ dimension system only scaled as $N^2$, successfully avoid the exponential scaling with the dimension of the open system in the current method. After the benchmark with a two-dimension open system, we demonstrate the method in quantifying the non-Markovanity of a high dimension open quantum random walk system.
DEFINITIONS OF COMPACTNESS AND THE AXIOM OF CHOICE ...
1910-20-32T23:59:59.000Z
Apr 17, 2001 ... the United States and in France: using nets (Birkhoff, building on work by E. H. Moore and H. L. Smith), and ..... no countably infinite subset, and neither does its power set. It follows that (A, ...... [ho] P. Howard, Definitions of compactness, J. Symbolic Logic 55 (1990) 645655. ... University of Northern Iowa.
Seismic Tomography: Definitions Lapo Boschi (lapo@erdw.ethz.ch)
Boschi, Lapo
Seismic Tomography: Definitions Lapo Boschi (lapo@erdw.ethz.ch) September 14, 2009 Seismic Tomography Seismic tomography is the science of interpreting seismic measurements (seismograms) to derive information about the structure of the Earth. This course does not cover the techniques of seismic observation
Virtual Chassis for Snake Robots: Definition and Applications
Choset, Howie
Full paper Virtual Chassis for Snake Robots: Definition and Applications David Rollinson*, Austin Buchan and Howie Choset The Robotics Institute, Carnegie Mellon University, 5000 Forbes Avenue the motion of a snake robot is difficult. This is in part because the internal shape changes that the robot
The development of high definition television : an ecology of games
Neil, Suzanne Chambliss
2010-01-01T23:59:59.000Z
This study is an analysis of the forces that shaped the overall character of a new US television system, high definition or HDTV, between the early 1980s and 2010, with a primary focus on the period leading up the Federal ...
Patent License for OpenSSL 1. Definitions
Rogaway, Phillip
Patent License for OpenSSL 1. Definitions 1.1 "Licensor" means Phillip Rogaway. orOne Shields Avenue, Davis, CA 95616-8562. 1.2 "Licensed Patents" means any patent that claims priority to United States Patent Application No. 09/918,615 entitled "Method and Apparatus for Facilitating Efficient
A SIMPLE ALGORITHM FOR IDENTIFYING ABBREVIATION DEFINITIONS IN BIOMEDICAL TEXT
Hearst, Marti
A SIMPLE ALGORITHM FOR IDENTIFYING ABBREVIATION DEFINITIONS IN BIOMEDICAL TEXT ARIEL S. SCHWARTZ of biomedical text is growing at a fast rate, creating challenges for humans and computer systems alike. One of these challenges arises from the frequent use of novel abbreviations in these texts, thus requiring that biomedical
EECS 495: Randomized Algorithms Lecture 10 Semi-definite Programming
Immorlica, Nicole
eigen- value is violating constraint Rounding the SDP Goal: Want (i, j) to be cut when (1-vi路vj)/2EECS 495: Randomized Algorithms Lecture 10 Semi-definite Programming Reading: Text: Williamson a graph with small max cut but large LP value, e.g., square plus diagonal. Can strengthen with more
of carbon capture and storage and nuclear technologies. These dimensions枚and surface-level to deeperTheorizing the carbon economy: introduction to the special issue The term `carbon economy'often has an adjective placed nearby: the `new'carbon economy, the `low' carbon economy, the carbon `neutral' economy
Low dimension structures and devices for new generation photonic technology
Zhang, D. H.; Tang, D. Y.; Chen, T. P. [School of Electrical and Electronic Engineering, Nanyang Technological University, 679798 (Singapore); Mei, T. [Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou 510631 (China); Yuan, X. C. [Institute of Modern Optics, Nankai University, Tianjin 300071 (China)
2014-05-15T23:59:59.000Z
Low dimensional structures and devices are the key technological building blocks for new generation of electronic and photonic technology. Such structures and devices show novel properties and can be integrated into systems for wide applications in many areas, including medical, biological and military and advancement of science. In this invited talk, I will present the main results achieved in our competitive research program which aims to explore the application of the mesoscopic structures in light source, manipulation and imaging and integrate them into advanced systems. In the light source aspect, we have for the first time developed graphene mode-locked lasers which are in the process of commercialization. Nanocrystal Si embedded in dielectrics was formed by ion implantation and subsequent annealing. Si light emitting devices with external quantum efficiency of about 2.910{sup ?3}% for visible emission were demonstrated at room temperature and the color of emitted light can be tuned electrically from violet to white by varying the injected current. In light manipulation, loss compensation of surface plasmon polaritons (SPPs) using quantum well (QW) gain media was studied theoretically and demonstrated experimentally. The SPP propagation length was effectively elongated several times through electrical pumping. One and two microring resonators based on silicon on insulator and III-V semiconductors technologies have been successfully fabricated and they can be used as filter and switch in the photonic circuit. In imaging, both SPP and low dimension structures are investigated and resolution far beyond diffraction limit in visible range has been realized. The integration of the components in the three aspects into complicated systems is on the way.
Human dimensions in cyber operations research and development priorities.
Forsythe, James Chris; Silva, Austin Ray; Stevens-Adams, Susan Marie; Bradshaw, Jeffrey [Institute for Human and Machine Cognition
2012-11-01T23:59:59.000Z
Within cyber security, the human element represents one of the greatest untapped opportunities for increasing the effectiveness of network defenses. However, there has been little research to understand the human dimension in cyber operations. To better understand the needs and priorities for research and development to address these issues, a workshop was conducted August 28-29, 2012 in Washington DC. A synthesis was developed that captured the key issues and associated research questions. Research and development needs were identified that fell into three parallel paths: (1) human factors analysis and scientific studies to establish foundational knowledge concerning factors underlying the performance of cyber defenders; (2) development of models that capture key processes that mediate interactions between defenders, users, adversaries and the public; and (3) development of a multi-purpose test environment for conducting controlled experiments that enables systems and human performance measurement. These research and development investments would transform cyber operations from an art to a science, enabling systems solutions to be engineered to address a range of situations. Organizations would be able to move beyond the current state where key decisions (e.g. personnel assignment) are made on a largely ad hoc basis to a state in which there exist institutionalized processes for assuring the right people are doing the right jobs in the right way. These developments lay the groundwork for emergence of a professional class of cyber defenders with defined roles and career progressions, with higher levels of personnel commitment and retention. Finally, the operational impact would be evident in improved performance, accompanied by a shift to a more proactive response in which defenders have the capacity to exert greater control over the cyber battlespace.
The Local Dimension: a method to quantify the Cosmic Web
Prakash Sarkar; Somnath Bharadwaj
2008-12-09T23:59:59.000Z
It is now well accepted that the galaxies are distributed in filaments, sheets and clusters all of which form an interconnected network known as the Cosmic Web. It is a big challenge to quantify the shapes of the interconnected structural elements that form this network. Tools like the Minkowski functionals which use global properties, though well suited for an isolated object like a single sheet or filament, are not suited for an interconnected network of such objects. We consider the Local Dimension $D$, defined through $N(R)=A R^D$, where $N(R)$ is the galaxy number count within a sphere of comoving radius $R$ centered on a particular galaxy, as a tool to locally quantify the shape in the neigbourhood of different galaxies along the Cosmic Web. We expect $D \\sim 1,2$ and 3 for a galaxy located in a filament, sheet and cluster respectively. Using LCDM N-body simulations we find that it is possible to determine $D$ through a power law fit to $N(R)$ across the length-scales 2 to $10 {\\rm Mpc}$ for $\\sim 33 %$ of the galaxies. We have visually identified the filaments and sheets corresponding to many of the galaxies with $D \\sim 1$ and 2 respectively. In several other situations the structure responsible for the $D$ value could not be visually identified, either due to its being tenuous or due to other dominating structures in the vicinity. We also show that the global distribution of the $D$ values can be used to visualize and interpret how the different structural elements are woven into the Cosmic Web.
Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators
Landon Lehman
2014-12-26T23:59:59.000Z
We present a complete list of the independent dimension-7 operators that are constructed using the Standard Model degrees of freedom and are invariant under the Standard Model gauge group. This list contains only 20 independent operators; far fewer than the 63 operators available at dimension 6. All of these dimension-7 operators contain fermions and violate lepton number, and 7 of the 20 violate baryon number as well. This result extends the Standard Model Effective Field Theory (SMEFT) and allows a more detailed exploration of the structure and properties of possible deformations from the Standard Model Lagrangian.
Arne Goedeke; Alan D. Rendall
2010-02-21T23:59:59.000Z
It is known that all spatially homogeneous solutions of the vacuum Einstein equations in four dimensions which exist for an infinite proper time towards the future are future geodesically complete. This paper investigates whether the analogous statement holds in higher dimensions. A positive answer to this question is obtained for a large class of models which can be studied with the help of Kaluza-Klein reduction to solutions of the Einstein-scalar field equations in four dimensions. The proof of this result makes use of a criterion for geodesic completeness which is applicable to more general spatially homogeneous models.
Chakhlov, V.L.; Kashovskii, V.V.; Pushin, V.S.
1985-09-01T23:59:59.000Z
The authors discuss the results of refinement of the dynamics of particles of a beam extracted from a betatron, a refinement which has made it possible to select the main dimensions of the accelerating chamber. Expressions are obtained which make it possible to determine the chamber dimensions and the profile of the extraction window from the distribution of the magnetic field of the betatron. It is shown that proper selection of the dimensions will increase the dose rate at the exit from the magnetic core of the accelerator.
Khodaee, Sadi; Toppan, Francesco [CBPF, Rua Dr. Xavier Sigaud 150, Urca, cep 22290-180, Rio de Janeiro (RJ) (Brazil)
2012-10-15T23:59:59.000Z
At critical values of the scaling dimension {lambda}, supermultiplets of the global N-extended one-dimensional supersymmetry algebra induce D-module representations of finite superconformal algebras (the latters being identified in terms of the global supermultiplet and its critical scaling dimension). For N=4,8 and global supermultiplets (k,N,N-k), the exceptional superalgebras D(2, 1;{alpha}) are recovered for N=4, with a relation between {alpha} and the scaling dimension given by {alpha}= (2 -k){lambda}. For N=8 and k{ne} 4 all four N=8 finite superconformal algebras are recovered, at the critical values {lambda}{sub k}=(1/k-4), with the following identifications: D(4, 1) for k= 0, 8, F(4) for k= 1, 7, A(3, 1) for k= 2, 6 and D(2, 2) for k= 3, 5. The N=7 global supermultiplet (1, 7, 7, 1) induces, at {lambda}=-(1/4), a D-module representation of the exceptional superalgebra G(3). D-module representations are applicable to the construction of superconformal mechanics in a Lagrangian setting. The isomorphism of the D(2, 1;{alpha}) algebras under an S{sub 3} group action on {alpha}, coupled with the relation between {alpha} and the scaling dimension {lambda}, induces non-trivial constraints on the admissible models of N=4 superconformal mechanics. The existence of new superconformal models is pointed out. For example, coupled (1, 4, 3) and (3, 4, 1) supermultiplets generate an N=4 superconformal mechanics if {lambda} is related to the golden ratio. The relation between classical versus quantum D-module representations is presented.
Total termination of term rewriting is undecidable
Utrecht, Universiteit
Total termination of term rewriting is undecidable Hans Zantema Utrecht University, Department Usually termination of term rewriting systems (TRS's) is proved by means of a monotonic well颅founded order. If this order is total on ground terms, the TRS is called totally terminating. In this paper we prove that total
Sandia photovoltaic systems definition and application experiment projects
Jones, G.
1983-04-01T23:59:59.000Z
A compilation is given of the abstracts and visual material used in presentation at the Fourth Photovoltaic Systems Definition and Applications Projects Integration Meeting held at the Marriott Hotel, April 12-14, 1983, in Albuquerque, New Mexico. The meeting provided a forum for detailed analyses on recently completed and current activities. These activities include systems research, balance-of-system technology development, residential experimentation, and evaluation of intermediate-sized applications.
Bowman, Adam Shoresworth
2011-01-01T23:59:59.000Z
??We study the Born-Oppenheimer approximation for a symmetric linear triatomic molecule in two space dimensions. We compute energy levels up to errors of order 蔚5, (more)
Dimensionally continued Oppenheimer-Snyder gravitational collapse. I - solutions in even dimensions
Anderson Ilha; Jose' P. S. Lemos
1996-08-02T23:59:59.000Z
The extension of the general relativity theory to higher dimensions, so that the field equations for the metric remain of second order, is done through the Lovelock action. This action can also be interpreted as the dimensionally continued Euler characteristics of lower dimensions. The theory has many constant coefficients apparently without any physical meaning. However, it is possible, in a natural way, to reduce to two (the cosmological and Newton's constant) these several arbitrary coefficients, yielding a restricted Lovelock gravity. In this process one separates theories in even dimensions from theories in odd dimensions. These theories have static black hole solutions. In general relativity, black holes appear as the final state of gravitational collapse. In this work, gravitational collapse of a regular dust fluid in even dimensional restricted Lovelock gravity is studied. It is found that black holes emerge as the final state for these regular initial conditions.
Baca, David Ray
2007-04-25T23:59:59.000Z
must also be satisfied with transactions between the employees, or internal service quality. Those dimensions of internal service quality, or the satisfaction employees feel with each other, have not been described in a higher education setting...
Dimension Reduction with Gene Expression Data Using Targeted Variable Importance Measurement
Wang, Hui; van der Laan, Mark J
2011-01-01T23:59:59.000Z
and we refer to it as the TMLE-VIM procedure. 1. Obtain theResults: We propose a TMLE-VIM dimension reduction procedureimportance measurement (VIM) in the frame work of targeted
An Examination of Magical Beliefs as Predictors of Obsessive-Compulsive Symptom Dimensions
Spears, Lauren
2014-08-31T23:59:59.000Z
study improved on methodological limitations of previous studies and used the Dimensional Obsessive-Compulsive Scale (DOCS) to conceptualize OCD as a dimensional construct. Relationships between magical belief constructs and four OCD symptom dimensions...
E-Print Network 3.0 - altered nanotube dimension Sample Search...
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nanotube dimension Page: << < 1 2 3 4 5 > >> 1 Thermal conductivity of B-C-N and BN nanotubes C. W. Changa Summary: Thermal conductivity of B-C-N and BN nanotubes C. W. Changa...
Non-differentiability of devil's staircases and dimensions of subsets of Moran sets
Li, Wenxia
Non-differentiability of devil's staircases and dimensions of subsets of Moran referred to as the Devil's staircase (for a = 1_3): F (x) = ~([0; x]); x 2 [0; 1
Non-di erentiability of devil's staircases and dimensions of subsets of Moran sets
Li, Wenxia
Non-di#11;erentiability of devil's staircases and dimensions of subsets of Moran sets Wenxia Li, #3. Consider the distribution function which is often referred to as the Devil's staircase (for a = 1 3 ): F (x
Recent Progress in the Definition of Thermodynamic Entropy
Enzo Zanchini; Gian Paolo Beretta
2014-03-23T23:59:59.000Z
The principal methods for the definition of thermodynamic entropy are discussed with special reference to those developed by Carath\\'eodory, the Keenan School, Lieb and Yngvason, and the present authors. An improvement of the latter method is then presented. Seven basic axioms are employed: three Postulates, which are considered as having a quite general validity, and four Assumptions, which identify the domains of validity of the definitions of energy (Assumption 1) and entropy (Assumptions 2, 3, 4). The domain of validity of the present definition of entropy is not restricted to stable equilibrium states. For collections of simple systems, it coincides with that of the proof of existence and uniqueness of an entropy function which characterizes the relation of adiabatic accessibility proposed by Lieb and Yngvason. However, our treatment does not require the formation of scaled copies so that it applies not only to collections of simple systems, but also to systems contained in electric or magnetic fields and to small and few-particle systems.
Gauge Fields Emerging From Extra Dimensions a Born-Oppenheimer approach
T. Hatsuda; H. Kuratsuji
1994-09-09T23:59:59.000Z
We propose a dynamical mechanism to induce gauge fields in four dimensional space-time from a single scalar field or a spinor field in higher dimensions. The Born-Oppenheimer treatment of the extra dimensions is an essential ingredient in our approach. A possible applications of the idea to low dimensional condensed matter systems and high temperature field theory are also pointed out. This paper is an extended version of our previous unpublished work (SUNY-NTG-89-48, Jan. 1990).
Kitchen layout and dimensions for the ambulatory and wheelchair-bound elderly
Resendiz, Anita Janice
1985-01-01T23:59:59.000Z
KITCHEN LAYOUT AND DIMENSIONS FOR THE Al&ULATORY AND WHEELCHAIR-BOUND ELDERLY A Thesis ANITA JANICE RESENDIZ Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August ' 9BS Major Subject: Industrial Engineering KITCHEN LAYOUT AND DIMENSIONS FOR THE AMBULATORY AND WHEELCHAIR-BOUND ELDERLY A Thesis by ANITA JANICE RESENDIZ Approved as to style and content by: R. D. uchings n (Chairman) G. Bayliss...
On the Fractal Dimension of Isosurfaces Marc Khoury and Rephael Wenger
Wenger, Rephael
On the Fractal Dimension of Isosurfaces Marc Khoury and Rephael Wenger 2 2.2 2.4 2.6 2.8 3 0 50 100 150 200 250 1 10 100 1000 10000 0 50 100 150 200 250 Fractal dimension Topological Noise (Number of Components) Isovalue 60 Isovalue 68 Isovalue 72 Fig. 1: Visible male data set (www.stereofx.org): Fractal box
Fractal dimension of the topological charge density distribution in SU(2) lattice gluodynamics
P. V. Buividovich; T. Kalaydzhyan; M. I. Polikarpov
2012-10-21T23:59:59.000Z
We study the effect of cooling on the spatial distribution of the topological charge density in quenched SU(2) lattice gauge theory with overlap fermions. We show that as the gauge field configurations are cooled, the Hausdorff dimension of regions where the topological charge is localized gradually changes from d = 2..3 towards the total space dimension. Therefore, the cooling procedure destroys some of the essential properties of the topological charge distribution.
Entanglement Entropy of Gapped Phases and Topological Order in Three dimensions
Tarun Grover; Ari M. Turner; Ashvin Vishwanath
2011-08-19T23:59:59.000Z
We discuss entanglement entropy of gapped ground states in different dimensions, obtained on partitioning space into two regions. For trivial phases without topological order, we argue that the entanglement entropy may be obtained by integrating an `entropy density' over the partition boundary that admits a gradient expansion in the curvature of the boundary. This constrains the expansion of entanglement entropy as a function of system size, and points to an even-odd dependence on dimensionality. For example, in contrast to the familiar result in two dimensions, a size independent constant contribution to the entanglement entropy can appear for trivial phases in any odd spatial dimension. We then discuss phases with topological entanglement entropy (TEE) that cannot be obtained by adding local contributions. We find that in three dimensions there is just one type of TEE, as in two dimensions, that depends linearly on the number of connected components of the boundary (the `zeroth Betti number'). In D > 3 dimensions, new types of TEE appear which depend on the higher Betti numbers of the boundary manifold. We construct generalized toric code models that exhibit these TEEs and discuss ways to extract TEE in D >=3.
Hung, Ling-Yan
2012-01-01T23:59:59.000Z
We consider a weakly coupled gauge theory where charged particles all have large gaps (ie no Higgs condensation to break the gauge "symmetry") and the field strength fluctuates only weakly. We ask what kind of topological terms can be added to the Lagrangian of such a weakly coupled gauge theory. In this paper, we systematically construct quantized topological terms which are generalization of the Chern-Simons terms and $F\\wedge F$ terms, in space-time dimensions $d$ and for any gauge groups (continuous or discrete), using each element of the topological cohomology classes $H^{d+1}(BG,\\Z)$ on the classifying space $BG$ of the gauge group $G$. In 3$d$ or for finite gauge groups above 3$d$, the weakly coupled gauge theories are gapped. So our results on topological terms can be viewed as a systematic construction of gapped topologically ordered phases of weakly coupled gauge theories. In other cases, the weakly coupled gauge theories are gapless. So our results can be viewed as an attempt to systematically cons...
HTGR Mechanistic Source Terms White Paper
Wayne Moe
2010-07-01T23:59:59.000Z
The primary purposes of this white paper are: (1) to describe the proposed approach for developing event specific mechanistic source terms for HTGR design and licensing, (2) to describe the technology development programs required to validate the design methods used to predict these mechanistic source terms and (3) to obtain agreement from the NRC that, subject to appropriate validation through the technology development program, the approach for developing event specific mechanistic source terms is acceptable
University of Pittsburgh SUMMER TERM HOUSING APPLICATION
Sibille, Etienne
SUMMER TERM HOUSING/FOOD SERVICES CONTRACT/Food Services Contract (this "Contract") is made by and between the University of Pittsburgh
Short-Term Energy Outlook September 2013
U.S. Energy Information Administration (EIA) Indexed Site
September 2013 1 September 2013 Short-Term Energy Outlook (STEO) Highlights Monthly average crude oil prices increased for the fourth consecutive month in August 2013, as...
Variable cosmological term - geometry and physics
Irina Dymnikova
2000-10-04T23:59:59.000Z
We describe the dynamics of a cosmological term in the spherically symmetric case by an r-dependent second rank symmetric tensor \\Lambda_{\\mu\
DIMENSION AS A KEY TO THE NEUTRINO MECHANISM OF CORE-COLLAPSE SUPERNOVA EXPLOSIONS
Nordhaus, J.; Burrows, A. [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States); Almgren, A.; Bell, J., E-mail: nordhaus@astro.princeton.ed, E-mail: burrows@astro.princeton.ed, E-mail: ASAlmgren@lbl.go, E-mail: JBBell@lbl.go [Computational Research Division, Lawrence Berkeley National Lab, Berkeley, CA 94720 (United States)
2010-09-01T23:59:59.000Z
We explore the dependence on spatial dimension of the viability of the neutrino heating mechanism of core-collapse supernova explosions. We find that the tendency to explode is a monotonically increasing function of dimension, with three dimensions (3D) requiring {approx}40%-50% lower driving neutrino luminosity than one dimension and {approx}15%-25% lower driving neutrino luminosity than two dimensions (2D). Moreover, we find that the delay to explosion for a given neutrino luminosity is always shorter in 3D than 2D, sometimes by many hundreds of milliseconds. The magnitude of this dimensional effect is much larger than the purported magnitude of a variety of other effects, such as nuclear burning, inelastic scattering, or general relativity, which are sometimes invoked to bridge the gap between the current ambiguous and uncertain theoretical situation and the fact of robust supernova explosions. Since real supernovae occur in three dimensions, our finding may be an important step toward unraveling one of the most problematic puzzles in stellar astrophysics. In addition, even though in 3D, we do see pre-explosion instabilities and blast asymmetries, unlike the situation in 2D, we do not see an obvious axially symmetric dipolar shock oscillation. Rather, the free energy available to power instabilities seems to be shared by more and more degrees of freedom as the dimension increases. Hence, the strong dipolar axisymmetry seen in 2D and previously identified as a fundamental characteristic of the shock hydrodynamics may not survive in 3D as a prominent feature.
N. Kiriushcheva; S. V. Kuzmin
2009-07-09T23:59:59.000Z
The Hamiltonian formulation of N-bein, Einstein-Cartan, gravity, using its first order form in any dimension higher than two, is analyzed. This Hamiltonian formulation allows to explicitly show where peculiarities of three dimensional case (\\textit{A.M.Frolov et al, 0902.0856 [gr-qc]}) occur and make a conjecture, based on presented in this report results, that there is one general for \\textit{all} dimensions characteristic of N-bein formulation of gravity: after elimination of second class constraints the algebra of Poisson brackets among remaining first class secondary constraints is the Poincare algebra and in all dimensions N-bein, Cartan-Einstein, gravity \\textit{is the Poincare gauge theory}. The gauge symmetry corresponding to the algebra of first class constraints has two parameters - rotational (Lorentz) and translational. Translational invariance is common to all dimensions but some terms in general expressions for gauge transformations of N-beins and connections are zero in a particular, three dimensional, case. The proof of our conjecture is outlined in detail. Some straightforward but tedious calculations remain to be completed to call our conjecture - a theorem and will be reported later.
EIA聬s Proposed Definitions for Natural Gas Liquids
Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteam Coal Import96Nebraska Nuclear ProfileReport Released:Definitions for
Adaptive Projection Subspace Dimension for the Thick-Restart Lanczos Method
Yamazaki, Ichitaro; Bai, Zhaojun; Simon, Horst; Wang, Lin-Wang; Wu, K.
2008-10-01T23:59:59.000Z
The Thick-Restart Lanczos (TRLan) method is an effective method for solving large-scale Hermitian eigenvalue problems. However, its performance strongly depends on the dimension of the projection subspace. In this paper, we propose an objective function to quantify the effectiveness of a chosen subspace dimension, and then introduce an adaptive scheme to dynamically adjust the dimension at each restart. An open-source software package, nu-TRLan, which implements the TRLan method with this adaptive projection subspace dimension is available in the public domain. The numerical results of synthetic eigenvalue problems are presented to demonstrate that nu-TRLan achieves speedups of between 0.9 and 5.1 over the static method using a default subspace dimension. To demonstrate the effectiveness of nu-TRLan in a real application, we apply it to the electronic structure calculations of quantum dots. We show that nu-TRLan can achieve speedups of greater than 1.69 over the state-of-the-art eigensolver for this application, which is based on the Conjugate Gradient method with a powerful preconditioner.
The Constant Radiance Term Lszl Neumann 1
is zero. The self- 1 Email: neumann@hungary.net #12; L. Neumann: The Constant Radiance Term - 2 information, nor the calculation of form factors. A constant radiance is extracted from the solution in every of the residuum problem is zero. The self-emitting term of the residuum problem can either be positive or negative
CIMI PROJECT LONG TERM THEMATIC PROJECT
Ledoux, Michel
thematic projects (3 months) on specific topics in mathematics, computer science and their interactionsCIMI PROJECT LONG TERM THEMATIC PROJECT This document aims at providing guidance on the format to be used when submitting a scientific project to CIMI Executive Committee. CIMI will support long term
QIP Short Term Course Application of Renewable
Kumar, M. Jagadesh
QIP Short Term Course on Application of Renewable Energy sources (December 11-17, 2013) Course mitigation and credit 路 PV modules/arrays 路 Batteries 路 Hybrid systems (wind, hydro etc.) 路 Life cycle cost:gntiwari@ces.iitd.ernet.in Application Form QIP Short-Term Course on Applications of Renewable Energy Sources (December 11-17, 2013) Name
Winter Term University of Oldenburg (Core Provider)
Habel, Annegret
Evaluation Modul Winter Term Titel Wind Energy Wind Energy I Wind Tutorial Wind Energy Systems Wind Energy Conversion (Lab) Excursion/Wind/DEWI Modul Winter Term Titel Solar Energy PV Systems I Solar Thermal I Solar Tutorial PV Cell Characteristics (Lab) Solar
Capital controls and external debt term structure
Al Zein, Eza Ghassan
2005-11-01T23:59:59.000Z
short-term bonds and one long-term bond offered by the domestic banks to international lenders. First I look at a simple model were international lending is modeled exogenously. I consider explicitly the maturity composition of capital inflows to a...
Calculation of source terms for NUREG-1150
Breeding, R.J.; Williams, D.C.; Murfin, W.B.; Amos, C.N.; Helton, J.C.
1987-10-01T23:59:59.000Z
The source terms estimated for NUREG-1150 are generally based on the Source Term Code Package (STCP), but the actual source term calculations used in computing risk are performed by much smaller codes which are specific to each plant. This was done because the method of estimating the uncertainty in risk for NUREG-1150 requires hundreds of source term calculations for each accident sequence. This is clearly impossible with a large, detailed code like the STCP. The small plant-specific codes are based on simple algorithms and utilize adjustable parameters. The values of the parameters appearing in these codes are derived from the available STCP results. To determine the uncertainty in the estimation of the source terms, these parameters were varied as specified by an expert review group. This method was used to account for the uncertainties in the STCP results and the uncertainties in phenomena not considered by the STCP.
Product definition for future electricity supply auctions: the 2006 Illinois experience
de Castro, Luciano; Negrete-Pincetic, Matias; Gross, George
2008-08-15T23:59:59.000Z
Much of the discussion about new markets for electricity contracts focuses on the auction format to be used. Far less attention has been paid to the contract definition itself. An analysis of the 2006 Illinois Electricity Auction shows how a poorly formulated product definition can erode the performance of such markets. The authors propose an improved product definition to overcome the key problems they have identified. (author)
Leach, C.E.; Galbraith, J.D. [Westinghouse Hanford Co., Richland, WA (United States); Grant, P.R.; Francuz, D.J.; Schroeder, P.J. [Fluor Daniel, Inc., Richland, WA (United States)
1995-11-01T23:59:59.000Z
This report documents the current facility design philosophy for the Tank Waste Remediation System (TWRS) process support and infrastructure definition. The Tank Waste Remediation System Facility Configuration Study (FCS) initially documented the identification and definition of support functions and infrastructure essential to the TWRS processing mission. Since the issuance of the FCS, the Westinghouse Hanford Company (WHC) has proceeded to develop information and requirements essential for the technical definition of the TWRS treatment processing programs.
Smith, D.K.
1995-06-01T23:59:59.000Z
The compilation of a radionuclide inventory for long-lived radioactive contaminants residual from nuclear testing provides a partial measure of the radiologic source term at the Nevada Test Site. The radiologic source term also includes potentially mobile short-lived radionuclides excluded from the inventory. The radiologic source term for tritium is known with accuracy and is equivalent to the hydrologic source term within the saturated zone. Definition of the total hydrologic source term for fission and activation products that have high activities for decades following underground testing involves knowledge and assumptions which are presently unavailable. Systematic investigation of the behavior of fission products, activation products and actinides under saturated or Partially saturated conditions is imperative to define a representative total hydrologic source term. This is particularly important given the heterogeneous distribution of radionuclides within testing centers. Data quality objectives which emphasize a combination of measurements and credible estimates of the hydrologic source term are a priority for near-field investigations at the Nevada Test Site.
E-Print Network 3.0 - appalachia variable definition Sample Search...
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climate change... . The first component of the definition involves ... Source: McCarl, Bruce A. - Department of Agricultural Economics, Texas A&M University Collection:...
Montana MCA 75-20-104, Policy and General Provisions Definitions...
4, Policy and General Provisions Definitions for Major Facility Siting Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- RegulationRegulation:...
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prostate definition Page: << < 1 2 3 4 5 > >> 1 2nd Annual Multidisciplinary Prostate Cancer Symposium Planning and Assessment of New Prostate Cancer Therapies CME Summary: of the...
Splitting of 3d quaternion dimensions into 2d-sells and a "world screen technology"
Alexander P. Yefremov
2012-02-14T23:59:59.000Z
A set of basic vectors locally describing metric properties of an arbitrary 2-dimensional (2D) surface is used for construction of fundamental algebraic objects having nilpotent and idempotent properties. It is shown that all possible linear combinations of the objects when multiplied behave as a set of hypercomples (in particular, quaternion) units; thus interior structure of the 3D space dimensions pointed by the vector units is exposed. Geometric representations of elementary surfaces (2D-sells) structuring the dimensions are studied in detail. Established mathematical link between a vector quaternion triad treated as a frame in 3D space and elementary 2D-sells prompts to raise an idea of "world screen" having 1/2 of a space dimension but adequately reflecting kinematical properties of an ensemble of 3D frames.
Spherical collapse of a heat conducting fluid in higher dimensions without horizon
A. banerjee; S. Chatterjee
2004-06-08T23:59:59.000Z
We consider a scenario where the interior spacetime,described by a heat conducting fluid sphere is matched to a Vaidya metric in higher dimensions.Interestingly we get a class of solutions, where following heat radiation the boundary surface collapses without the appearance of an event horizon at any stage and this happens with reasonable properties of matter field.The non-occurrence of a horizon is due to the fact that the rate of mass loss exactly counterbalanced by the fall of boundary radius.Evidently this poses a counter example to the so-called cosmic censorship hypothesis.Two explicit examples of this class of solutions are also given and it is observed that the rate of collapse is delayed with the introduction of extra dimensions.The work extends to higher dimensions our previous investigation in 4D.
Critical Collapse in Einstein-Gauss-Bonnet Gravity in Five and Six Dimensions
Deppe, N; Taves, T; Kunstatter, G; Mann, R B
2012-01-01T23:59:59.000Z
Einstein-Gauss-Bonnet gravity (EGB) provides a natural higher dimensional and higher order curvature generalization of Einstein gravity. It contains a new, presumably microscopic, length scale that should affect short distance properties of the dynamics, such as Choptuik scaling. We present the results of a numerical analysis in generalized flat slice co-ordinates of self-gravitating massless scalar spherical collapse in five and six dimensional EGB gravity near the threshold of black hole formation. Remarkably, the behaviour is universal (i.e. independent of initial data) but qualitatively different in five and six dimensions. In five dimensions there is a minimum horizon radius, suggestive of a first order transition between black hole and dispersive initial data. In six dimensions no radius gap is evident. Instead, below the GB scale there is a change in the critical exponent and echoing period.
Unusual behavior of sound velocity of a Bose gas in an optical superlattice at quasi-one-dimension
Lei Chen; Zhu Chen; Wu Li; Zhidong Zhang; Zhaoxin Liang
2014-12-20T23:59:59.000Z
A Bose gas trapped in a one-dimensional optical superlattice has emerged as a novel superfluid characterized by tunable lattice topologies and tailored band structures. In this work, we focus on the propagation of sound in such a novel system and have found new features on sound velocity, which arises from the interplay between the two lattices with different periodicity and is not present in the case of a condensate in a monochromatic optical lattice. Particularly, this is the first time that the sound velocity is found to first increase and then decrease as the superlattice strength increases even at one dimension. Such unusual behavior can be analytically understood in terms of the competition between the decreasing compressibility and the increasing effective mass due to the increasing superlattice strength. This result suggests a new route to engineer the sound velocity by manipulating the superlattice's parameters. All the calculations based on the mean-field theory are justified by checking the exponent $\\gamma$ of the off-diagonal one-body density matrix that is much smaller than 1. Finally, the conditions for possible experimental realization of our scenario are also discussed.
Winter Term 2013/14 Master Photonics 1. Term Pertsch Bin Hasan Wyrowski Egorov Pertsch
Kn眉pfer, Christian
Winter Term 2013/14 Master Photonics 1. Term Pertsch Bin Hasan Wyrowski Egorov Pertsch 8.00 - 9 102, Abb. - 1 - modern optics E Fundamentals of Thursday FridayMonday Tuesday Wednesday FlammBin Hasan
Short-term and long-term reliability studies in the deregulated power systems
Li, Yishan
2006-04-12T23:59:59.000Z
-term reliability in deregulated power systems. Short-term reliability is for operational purposes and is mainly concerned with security. Thus the way energy is dispatched and the actions the system operator takes to remedy an insecure system state...
Long-term Kinetics of Uranyl Desorption from Sediments Under...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
term Kinetics of Uranyl Desorption from Sediments Under Advective Conditions. Long-term Kinetics of Uranyl Desorption from Sediments Under Advective Conditions. Abstract: Long-term...
Statistical error in a chord estimator of correlation dimension: The ``rule of five``
Theiler, J. [Los Alamos National Lab., NM (United States); Lookman, T. [University of Western Ontario, London, ON (Canada). Dept. of Applied Mathematics
1992-09-01T23:59:59.000Z
The statistical precision of a chord method for estimating dimension from a correlation integral is derived. The optimal chord length is determined, and a comparison is made to other estimators. The simple chord estimator is only 25% less precise than the optimal estimator which uses the full resolution and full range of the correlation integral. The analytic calculations are based on the hypothesis that all pairwise distances between the points in the embedding space are statistically independent. The adequacy of this approximation is assessed numerically, and a surprising result is observed in which dimension estimators can be anomalously precise for sets with reasonably uniform (nonfractal) distributions.
Statistical error in a chord estimator of correlation dimension: The rule of five''
Theiler, J. (Los Alamos National Lab., NM (United States)); Lookman, T. (University of Western Ontario, London, ON (Canada). Dept. of Applied Mathematics)
1992-09-01T23:59:59.000Z
The statistical precision of a chord method for estimating dimension from a correlation integral is derived. The optimal chord length is determined, and a comparison is made to other estimators. The simple chord estimator is only 25% less precise than the optimal estimator which uses the full resolution and full range of the correlation integral. The analytic calculations are based on the hypothesis that all pairwise distances between the points in the embedding space are statistically independent. The adequacy of this approximation is assessed numerically, and a surprising result is observed in which dimension estimators can be anomalously precise for sets with reasonably uniform (nonfractal) distributions.
Construction and exact solution of a nonlinear quantum field model in quasi-higher dimension
Kundu, Anjan
2015-01-01T23:59:59.000Z
Nonperturbative exact solutions are allowed for quantum integrable models in one space-dimension. Going beyond this class we propose an alternative Lax matrix approach, exploiting the hidden multi-time concept in integrable systems and construct a novel quantum nonlinear Schr\\"odinger model in quasi-two dimensions. An intriguing field commutator is discovered, confirming the integrability of the model and yielding its exact Bethe ansatz solution with rich scattering and bound-state properties. The universality of the scheme is expected to cover diverse models, opening up a new direction in the field.
Omar Maj
2008-02-12T23:59:59.000Z
This is the second part of a work aimed to study complex-phase oscillatory solutions of nonlinear symmetric hyperbolic systems. We consider, in particular, the case of one space dimension. That is a remarkable case, since one can always satisfy the \\emph{naive} coherence condition on the complex phases, which is required in the construction of the approximate solution. Formally the theory applies also in several space dimensions, but the \\emph{naive} coherence condition appears to be too restrictive; the identification of the optimal coherence condition is still an open problem.
Using Muonic Hydrogen in Optical Spectroscopy Experiment to Detect Extra Dimensions
Feng Luo; Hongya Liu
2006-02-23T23:59:59.000Z
Considering that gravitational force might deviate from Newton's inverse-square law (ISL) and become much stronger in small scale, we propose a kind of optical spectroscopy experiment to detect this possible deviation and take electronic, muonic and tauonic hydrogen atoms as examples. This experiment might be used to indirectly detect the deviation of ISL down to nanometer scale and to explore the possibility of three extra dimensions in ADD's model, while current direct gravity tests cannot break through micron scale and go beyond two extra dimensions scenario.
Dimension reduction for anisotropic Bose-Einstein condensates in the strong interaction regime
Weizhu Bao; Loic Le Treust; Florian Mehats
2014-03-12T23:59:59.000Z
We study the problem of dimension reduction for the three dimensional Gross-Pitaevskii equation (GPE) describing a Bose-Einstein condensate confined in a strongly anisotropic harmonic trap. Since the gas is assumed to be in a strong interaction regime, we have to analyze two combined singular limits: a semi-classical limit in the transport direction and the strong partial confinement limit in the transversal direction. We prove that both limits commute together and we provide convergence rates. The by-products of this work are approximated models in reduced dimension for the GPE, with a priori estimates of the approximation errors.
Seven-dimensional gravity with topological terms
Lue, H. [China Economics and Management Academy Central, University of Finance and Economics, Beijing 100081 (China); Institute for Advanced Study, Shenzhen University, Nanhai Ave 3688, Shenzhen 518060 (China); Pang Yi [Key Laboratory of Frontiers in Theoretical Physics Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 (China)
2010-04-15T23:59:59.000Z
We construct new seven-dimensional gravity by adding two topological terms to the Einstein-Hilbert action. For a certain choice of the coupling constants, these terms exist naturally in seven-dimensional gauged supergravity from the S{sup 4} reduction of eleven-dimensional supergravity with the R{sup 4} corrections. We derive the full set of the equations of motion. We find that the static spherically-symmetric black holes are unmodified by the topological terms. We obtain squashed AdS{sub 7}, and also squashed seven spheres and Q{sup 111} spaces in Euclidean signature.
Mechanistic facility safety and source term analysis
PLYS, M.G.
1999-06-09T23:59:59.000Z
A PC-based computer program was created for facility safety and source term analysis at Hanford The program has been successfully applied to mechanistic prediction of source terms from chemical reactions in underground storage tanks, hydrogen combustion in double contained receiver tanks, and proccss evaluation including the potential for runaway reactions in spent nuclear fuel processing. Model features include user-defined facility room, flow path geometry, and heat conductors, user-defined non-ideal vapor and aerosol species, pressure- and density-driven gas flows, aerosol transport and deposition, and structure to accommodate facility-specific source terms. Example applications are presented here.
Long-term care and the elderly
Coe, Norma B
2005-01-01T23:59:59.000Z
Long-term care expenditures represent one of the largest uninsured financial risks facing the elderly. Medicaid provides incomplete insurance against these costs: unlimited nursing home benefits with a deductible equal to ...
Red Band Needle Blight TERMS OF REFERENCE
Red Band Needle Blight TERMS OF REFERENCE Purpose 1. The Programme Board has been formed to have an overview of the administration and science of Red Band Needle Blight (RBNB), to underpin decisions made
Term: Spring 2013 University of Pittsburgh
Sibille, Etienne
Term: Spring 2013 1 University of Pittsburgh HOUSING/DINING SERVICES CONTRACT This Housing/Dining Services Contract (this "Contract") is made by and between the University of Pittsburgh
Term: Spring 2012 University of Pittsburgh
Sibille, Etienne
Term: Spring 2012 1 University of Pittsburgh HOUSING/DINING SERVICES CONTRACT This Housing/Dining Services Contract (this "Contract") is made by and between the University of Pittsburgh
Edge states for topological insulators in two dimensions and their Luttinger-like liquids
Denis Bernard; Eun-Ah Kim; Andr LeClair
2012-09-25T23:59:59.000Z
Topological insulators in three spatial dimensions are known to possess a precise bulk/boundary correspondence, in that there is a one-to-one correspondence between the 5 classes characterized by bulk topological invariants and Dirac hamiltonians on the boundary with symmetry protected zero modes. This holographic characterization of topological insulators is studied in two dimensions. Dirac hamiltonians on the one dimensional edge are classified according to the discrete symmetries of time-reversal, particle-hole, and chirality, extending a previous classification in two dimensions. We find 17 inequivalent classes, of which 11 have protected zero modes. Although bulk topological invariants are thus far known for only 5 of these classes, we conjecture that the additional 6 describe edge states of new classes of topological insulators. The effects of interactions in two dimensions are also studied. We show that all interactions that preserve the symmetries are exactly marginal, i.e. preserve the gaplessness. This leads to a description of the distinct variations of Luttinger liquids that can be realized on the edge.
Topological Insulators in Three Dimensions Liang Fu, C. L. Kane, and E. J. Mele
Kane, Charles
Topological Insulators in Three Dimensions Liang Fu, C. L. Kane, and E. J. Mele Department (STI) topological insulators. The WTI are like layered 2D QSH states, but are destroyed by disorder insulator by a Z2 topological invariant [6], analogous to the TKNN invariant of the integer quantum Hall
Bosonic topological insulator in three dimensions and the statistical Witten effect
Bosonic topological insulator in three dimensions and the statistical Witten effect Max A-known that one signature of the three-dimensional electron topological insulator is the Witten effect-odd-integer polarization charge. In the present work, we propose a corre- sponding phenomenon for the topological insulator
Stationary free surface viscous flows without surface tension in three dimensions
Boyer, Edmond
Stationary free surface viscous flows without surface tension in three dimensions Frederic Abergel dimensional channel. In the absence of surface tension, we prove the existence of a unique stationary solution is not elliptic when surface tension is neglected. Hence, analysis such as that made in [4] or [17] fails
Stationary free surface viscous ows without surface tension in three dimensions
Paris-Sud XI, Universit茅 de
Stationary free surface viscous ows without surface tension in three dimensions Frederic Abergel owing down a three dimensional channel. In the absence of surface tension, we prove the existence is not elliptic when surface tension is neglected. Hence, analysis such as that made in [4] or [17] fails
Neutrinoless double beta decay constrained by the existence of large extra dimensions
Marek G?d?; W. A. Kami?ski
2012-01-05T23:59:59.000Z
We present the possible influence on the half-life of neutrinoless double beta decay coming from the existence of $n$ extra spatial dimensions. The half-life in question depends on the mass of the electron neutrino. We base our analysis on the Majorana neutrino mass mechanism in Arkani-Hamed--Dimopoulos--Dvali model.
Global dimensions of endomorphism algebras for generator-cogenerators over $m$-replicated algebras
Lv, Hongbo
2008-01-01T23:59:59.000Z
Let $A$ be a finite dimensional hereditary algebra over a field $k$ and $A^{(m)}$ be the $m$-replicated algebra of $A$. We investigate the possibilities for the global dimensions of the endomorphism algebras of generator-cogenerators over $m$-replicated algebra $A^{(m)}$.
Green's Function for a Hierarchical Self-Avoiding Walk in Four Dimensions
Green's Function for a Hierarchical Self-Avoiding Walk in Four Dimensions David C. Brydges #3 . Apart from completing the program in the #12;rst paper, the main result is that the Green's function is almost equal to the Green's function for the Markov process with no self-repulsion, but at a di#11;erent
Estimate for the size of the compactification radius of a one extra dimension universe
Da Rosa, Felipe S [Los Alamos National Laboratory; Pascoal, F [DEPARTAMENTO DE FISICA; Oliveira, L F [CIDADE UNIV; Farina, C [INSTITUTO DE FISICA
2008-01-01T23:59:59.000Z
In this work, we use the Casimir effect to probe the existence of one extra dimension. We begin by evaluating the Casimir pressure between two plates in a M{sup 4} x S{sup 1} manifold, and then use an appropriate statistical analysis in order to compare the theoretical expression with a recent experimental data and set bounds for the compactification radius.
Dimensions of identity Within an international network of researchers, le Rseau d'tudes
Paris-Sud XI, Universit茅 de
Dimensions of identity Within an international network of researchers, le R茅seau d'茅tudes sur le journalisme (the Network for journalism studies), we have developed this conception of journalism RUELLAN Universit茅 de Rennes, France ABSTRACT Thinking of journalism in new ways should be free of any
Paris-Sud XI, Universit de
Towards an interaction evaluation between dimensions and objectives of sustainable development states, along with governments from around the world, have affirmed support for sustainable development, recently agreeing that the developed countries must take the lead in securing a "shift towards sustainable
Purely electric spin pumping in one-dimension Yshai Avishai1,3
Cohen, Doron
Purely electric spin pumping in one-dimension Yshai Avishai1,3 , Doron Cohen1 and Naoto Nagaosa2 1 (such as metallic wire) can display quantum spin pumping possibly without pushing any charge each period. This is referred to as quantum (charge) pumping [1颅5]. In recent years, the concept
Purely Electric Spin Pumping in One Dimension Yshai Avishai,1,2
Cohen, Doron
Purely Electric Spin Pumping in One Dimension Yshai Avishai,1,2 Doron Cohen,1 and Naoto Nagaosa3 1-dimensional system (such as metallic wire) can display quantum spin pumping possibly without pushing any charge to as quantum (charge) pumping [1颅5]. In recent years, pumping of spin polariza- tion has become a focus
Gomberoff, Andres; Henneaux, Marc; Teitelboim, Claudio [Centro de Estudios Cientificos (CECS), Valdivia (Chile); Physique Theorique et Mathematique, Universite Libre de Bruxelles and International Solvay Institutes, ULB Campus Plaine C.P. 231, B-1050 Brussels (Belgium); Centro de Estudios Cientificos (CECS), Valdivia (Chile); Centro de Estudios Cientificos (CECS), Valdivia (Chile)
2005-03-15T23:59:59.000Z
We study the decay of the cosmological constant in two spacetime dimensions through production of pairs. We show that the same nucleation process looks as quantum-mechanical tunneling (instanton) to one Killing observer and as thermal activation (thermalon) to another. Thus, we find another striking example of the deep interplay between gravity, thermodynamics and quantum mechanics which becomes apparent in presence of horizons.
Nanotube Formation: Researchers Learn To Control The Dimensions Of Metal Oxide Nanotubes
Nair, Sankar
Nanotube Formation: Researchers Learn To Control The Dimensions Of Metal Oxide Nanotubes ScienceDaily (Aug. 29, 2007) -- Moving beyond carbon nanotubes, researchers are developing insights-walled inorganic nanotubes could be useful in a range of nanotechnology applications that require precise control
A RENEWAL THEOREM FOR STRONGLY ERGODIC MARKOV CHAINS IN DIMENSION d 3 AND CENTERED CASE.
Paris-Sud XI, Universit茅 de
A RENEWAL THEOREM FOR STRONGLY ERGODIC MARKOV CHAINS IN DIMENSION d 3 AND CENTERED CASE. D. GUIBOURG and L. HERV麓E 1 AMS subject classification : 60J10-60K05-47A55 Keywords : Markov chains, renewal the renewal theorem established by Spitzer [23] for i.i.d. sequences of centered nonlattice r.v. holds true
Design of a wall-less proportional counter for microdosimetry in nanometer dimensions
Rayadurgam, Sripriya
2006-08-16T23:59:59.000Z
, at nanometer dimensions. The main contribution of this research is the design of a cylindrical wall-less proportional counter of 1mm height by 1mm diameter. A wall-less detector (also called grid-walled detector) overcomes the so-called ?wall effect...
Dimension Augmentation and Combinatorial Criteria for Efficient Error-resistant DNA Self-assembly
Goel, Ashish
Dimension Augmentation and Combinatorial Criteria for Efficient Error-resistant DNA Self-assembly Abstract DNA self-assembly has emerged as a rich and promising primitive for nano-technology. Experimental-correction mech- anisms have been proposed for the tile model of self- assembly. These error-correction mechanisms
Effective sea-level rise and deltas: Causes of change and human dimension implications
New Hampshire, University of
Effective sea-level rise and deltas: Causes of change and human dimension implications Jason P January 2006 Abstract An assessment is made of contemporary effective sea-level rise (ESLR) for a sample of eustatic sea-level rise, the natural gross rate of fluvial sediment deposition and subsidence
The perfect magnetic conductor (PMC) Casimir piston in d+1 dimensions
A. Edery; V. Marachevsky
2008-05-27T23:59:59.000Z
Perfect magnetic conductor (PMC) boundary conditions are dual to the more familiar perfect electric conductor (PEC) conditions and can be viewed as the electromagnetic analog of the boundary conditions in the bag model for hadrons in QCD. Recent advances and requirements in communication technologies have attracted great interest in PMC's and Casimir experiments involving structures that approximate PMC's may be carried out in the not too distant future. In this paper, we make a study of the zero-temperature PMC Casimir piston in $d+1$ dimensions. The PMC Casimir energy is explicitly evaluated by summing over $p+1$-dimensional Dirichlet energies where p ranges from 2 to $d$ inclusively. We derive two exact $d$-dimensional expressions for the Casimir force on the piston and find that the force is negative (attractive) in all dimensions. Both expressions are applied to the case of 2+1 and 3+1 dimensions. A spin-off from our work is a contribution to the PEC literature: we obtain a useful alternative expression for the PEC Casimir piston in 3+1 dimensions and also evaluate the Casimir force per unit area on an infinite strip, a geometry of experimental interest.
The Casimir force on a piston in the spacetime with extra compactified dimensions
Hongbo Cheng
2008-01-18T23:59:59.000Z
A one-dimensional Casimir piston for massless scalar fields obeying Dirichlet boundary conditions in high-dimensional spacetimes within the frame of Kaluza-Klein theory is analyzed. We derive and calculate the exact expression for the Casimir force on the piston. We also compute the Casimir force in the limit that one outer plate is moved to the extremely distant place to show that the reduced force is associated with the properties of additional spatial dimensions. The more dimensionality the spacetime has, the stronger the extra-dimension influence is. The Casimir force for the piston in the model excluding one plate under the background with extra compactified dimensions always keeps attractive. Further we find that when the limit is taken the Casimir force between one plate and the piston will change to be the same form as the corresponding force for the standard system consisting of two parallel plates in the four-dimensional spacetimes if the ratio of the plate-piston distance and extra dimensions size is large enough.
F. Bagarello
2009-04-01T23:59:59.000Z
We introduce a new class of multiplications of distributions in one dimension merging together two different regularizations of distributions. Some of the features of these multiplications are discussed in a certain detail. We use our theory to study a certain number of examples, involving products between Dirac delta functions and its successive derivatives.
Total Quality Management: Managing the Human Dimension in Natural Resource Agencies1
Standiford, Richard B.
Total Quality Management: Managing the Human Dimension in Natural Resource Agencies1 Denzil Verardo business is conducted in the public sector, and Total Quality Management (TQM) can be the avenue relationships within the DPR and make recommendations for change. Total Quality Management team practices were
Ecology and the ratchet of events: Climate variability, niche dimensions, and species distributions
Ecology and the ratchet of events: Climate variability, niche dimensions, and species distributionsDepartment of Botany and Program in Ecology and dWyoming Water Resources Data System and Wyoming State Climate Office superimposed on anthropogenic trends. Predicting ecological and biogeographic responses to these changes
Rheingans, Richard
Water insecurity in 3 dimensions: An anthropological perspective on water and women's psychosocial, Rollins School of Public Health, 1518 Clifton Road, Atlanta, GA 30022, USA b Center for Global Safe Water f o Article history: Available online 20 April 2012 Keywords: Water insecurity Gender Psychosocial
The Normative Dimension and Legal Meaning of Endangered and Recovery in the U.S. Endangered
Nelson, Michael P.
@mtu.edu Department of Philosophy, University of Idaho, Morrill Hall 403, Moscow, ID 83844, U.S.A. Turner Endangered of endangerment) and a fundamentally scientific dimension (i.e., determining whether a species meets recovery entails much more than the scientific notion of population viability, (2) most efforts to recover
The Normative Dimension and Legal Meaning of Endangered and Recovery in the U. S. Endangered
@mtu.edu Department of Philosophy, University of Idaho, Morrill Hall 403, Moscow, ID 83844, U.S.A. Turner Endangered of endangerment) and a fundamentally scientific dimension (i.e., determining whether a species meets recovery entails much more than the scientific notion of population viability, (2) most efforts to recover
Random fractal strings: their zeta functions, complex dimensions and spectral asymptotics
Jordan, Jonathan
Random fractal strings: their zeta functions, complex dimensions and spectral asymptotics B-increasing real numbers which sums to one. For our purposes a fractal string is a string formed from the lengths versions of fractal strings. We show that using a random re- cursive self-similar construction
Alternatives to the Seesaw: Extra Z's and Constraints on Large Extra Dimensions
Paul Langacker
2003-04-10T23:59:59.000Z
Alternatives to the traditional grand unified theory seesaw for neutrino masses are briefly described. These include the possibility of large extra dimensions and various possibilities for models involving an extra U(1)' gauge symmetry. The difficulty of observing Majorana phases in neutrinoless double beta decay is also briefly commented on.
TRACKING TONGUE MOTION IN THREE DIMENSIONS USING TAGGED MR IMAGES Xiaofeng Liu1
Prince, Jerry L.
TRACKING TONGUE MOTION IN THREE DIMENSIONS USING TAGGED MR IMAGES Xiaofeng Liu1 , Maureen Stone3 and strain analysis of tagged magnetic res- onance (MR) imaging [1]. It was originally applied to car- diac This research was supported by NIH grants R01 HL047405 and R01 DC001758 (a) (b) Fig. 1. (a) A tagged MR image
QUESTIONS ON WILD Z/pZ-QUOTIENT SINGULARITIES IN DIMENSION 2
Lorenzini, Dino J.
QUESTIONS ON WILD Z/pZ-QUOTIENT SINGULARITIES IN DIMENSION 2 DINO LORENZINI 1. Some questions Let A is called a wild cyclic quotient singularity. Let f : X Z be a resolution of the singularity, minimal a terminal chain. Wild Z/pZ-quotient singularities of surfaces are expected to have resolution graphs which
Bashir, Rashid
dimensions and profiles R. Bashir,a),b) A. E. Kabir,b) F. Hebert,c) and C. Brackenb) National Semiconductors. In many applications a spacer needs to be formed on the polycide sidewall Fig. 1 . Undesirable undercutting can re- sult in nonideal spacer formation for further device fabrica- tion. Tungsten silicide
Boyer, Edmond
1 THEORETICAL REFLECTIONS ABOUT EDUCATION FOR SUSTAINABLE DEVELOPMENT CONCEPT :CULTURAL-Luc FAUGUET, Yves ALPE ADEF Universit茅 de Provence, CASE 49 3, Place Victor Hugo- 13 331 Marseille Cedex 03 angela.barthes@univ-provence.fr Keywords :Education for sustainable development, international dimensions
AN ARTIFICIAL NEURAL NETWORK FOR DIMENSIONS AND COST MODELLING OF INTERNAL MICRO-CHANNELS
Lee, Hyowon
AN ARTIFICIAL NEURAL NETWORK FOR DIMENSIONS AND COST MODELLING OF INTERNAL MICRO Engineering, Dublin City University, Dublin, Ireland ABSTRACT For micro-channel fabrication using laser micro evaluation. Artificial Neural Network (ANN) is one of the numerical methodologies that can be utilised
Optimizing moderator dimensions for neutron scattering at the spallation neutron source
Zhao, J. K.; Robertson, J. L.; Herwig, Kenneth W.; Gallmeier, Franz X.; Riemer, Bernard W. [Instrument and Source Division, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)] [Instrument and Source Division, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
2013-12-15T23:59:59.000Z
In this work, we investigate the effect of neutron moderator dimensions on the performance of neutron scattering instruments at the Spallation Neutron Source (SNS). In a recent study of the planned second target station at the SNS facility, we have found that the dimensions of a moderator play a significant role in determining its surface brightness. A smaller moderator may be significantly brighter over a smaller viewing area. One of the immediate implications of this finding is that for modern neutron scattering instrument designs, moderator dimensions and brightness have to be incorporated as an integrated optimization parameter. Here, we establish a strategy of matching neutron scattering instruments with moderators using analytical and Monte Carlo techniques. In order to simplify our treatment, we group the instruments into two broad categories: those with natural collimation and those that use neutron guide systems. For instruments using natural collimation, the optimal moderator selection depends on the size of the moderator, the sample, and the moderator brightness. The desired beam divergence only plays a role in determining the distance between sample and moderator. For instruments using neutron optical systems, the smallest moderator available that is larger than the entrance dimension of the closest optical element will perform the best (assuming, as is the case here that smaller moderators are brighter)
On the Performance of Dimension Estimation-based Spectrum Sensing for Cognitive Radio
Gesbert, David
On the Performance of Dimension Estimation-based Spectrum Sensing for Cognitive Radio Bassem Zayen-day spectrum allocation and spectrum use suggests that radio spectrum shortage could be overcome by allowing immediate local spectrum availability. A new class of radios that is able to reliably sense the spectral
Dimension Estimation-based Spectrum Sens-ing for Cognitive Radio
Gesbert, David
Dimension Estimation-based Spectrum Sens- ing for Cognitive Radio Bassem Zayen and Aawatif Hayar. Introduction The discrepancy between current-day spectrum allocation and spectrum use sug- gests that radio mean that radios could find and adapt to any immediate local spectrum availability. A new class
Erlang-based dimensioning for IPv4 Address+Port translation
Paris-Sud XI, Universit茅 de
Erlang-based dimensioning for IPv4 Address+Port translation Florent Fourcot, Bertrand Grelot, or to reduce the use of IPv4 addresses. In this paper, we discuss a strategy known as "Address + Port of port numbers. Of critical importance for the feasibility of such a mechanism is the knowledge
Fractal dimension based sand ripple suppression for mine hunting with sidescan sonar
Nelson, James
mine hunting. Manual inspection of such data can be a time consuming task that requires significant1 Fractal dimension based sand ripple suppression for mine hunting with sidescan sonar J. D. B. Nelson and N. G. Kingsbury Abstract--Sand ripples present a difficult challenge to current mine hunting
CYCLOSTATIONARITY-BASED ESTIMATION OF THE FOETUS SUBSPACE DIMENSION FROM ECG RECORDINGS
Paris-Sud XI, Universit茅 de
CYCLOSTATIONARITY-BASED ESTIMATION OF THE FOETUS SUBSPACE DIMENSION FROM ECG RECORDINGS M of electrocardiogram (ECG) signals is in- troduced in order to classify independent subspaces into com- ponents. In the case of ECG recordings from the maternal thoracic and abdominal ar- eas, the foetal ECGs (FECGs
Appendix S1. Definitions of Acronyms 3rdG: 3rd Generation Technologies
Massachusetts at Amherst, University of
Appendix S1. Definitions of Acronyms 3rdG: 3rd Generation Technologies CCS: Carbon Capture and Storage CDF: Cumulative Distribution Function ChemL: Chemical Looping DICE: Dynamic Integrated Model-combustion Carbon Capture PreC: Pre-Combustion Carbon Capture #12;Appendix S2. Definitions of Variables
Magyar, Peter
). MTH299 Transition to Formal Mathematics Michigan State University 2 / 8 #12;Group Axioms Definition299 Transition to Formal Mathematics Michigan State University 3 / 8 #12;Group Axioms Definition Is Z with + a group? MTH299 Transition to Formal Mathematics Michigan State University 3 / 8 #12;Group
A dynamical definition of quasibound molecular clusters Sarah A. Harris and Ian J. Forda)
Ford, Ian
A dynamical definition of quasibound molecular clusters Sarah A. Harris and Ian J. Forda of a quasibound cluster are identified through a retrospective dynamical definition. The trajectory of a molecular is satisfied, however, at the instant that the energy of the departing molecule in the center of mass frame
The definition of reaction coordinates for reaction-path dynamics Gregory A. Natanson
Truong, Thanh N.
The definition of reaction coordinates for reaction-path dynamics Gregory A. Natanson Computer only small-amplitude deviations from a minimum-energy path (MEP) through nuclear coordinate space. Thus. In choosing the coordinate system, the critical issue is the definition of the reaction coordinate. Along
High Definition Dynamic Reservoir Characterization for CO2 Management, Delhi Field, Louisiana
#12;High Definition Dynamic Reservoir Characterization for CO2 Management, Delhi Field, Louisiana Characterization Project (RCP) proposes Phase XIII: a research study to conduct high definition dynamic reservoir energy supply, while associated sequestration is important to the environment in which we live. As part
Abduction in Logic Programming: A New Definition and an Abductive Procedure Based on Rewriting
Lin, Fangzhen
Abduction in Logic Programming: A New Definition and an Abductive Procedure Based on Rewriting, Canada T6G 2H1 Abstract We propose a new definition of abduction in logic programming, and contrast Abduction in logic programming In general, given a background theory T , and an observation q to explain
Quantum Metrology: Towards an alternative definition for the meter
Ioannis P. Zois
2012-03-05T23:59:59.000Z
The motivation for this article came from an attempt to give an alternative definition for the meter, the SI unit for measuring length. As a starting point towards this goal, in this piece of work we present the underlying theory behind our approach which uses ideas from quantum field theory and noncommutative geometry, in particular the notion of an odd K-cycle which is based on the Dirac operator (and its inverse, the Dirac propagator). Using (the perhaps more familiar) physics terminology, the key point in our strategy is this: instead of measuring length directly in space-time we measure the "algebraic (spectral) length" in the space of the corresponding quantum states of some particle (fermion) acted upon by the Dirac propagator. This approach shares the spirit of the unanimus vote of the 24th General Conference of Standards and Measures (21st October 2011) in Serves, France for the redefinition of the fundamental units using Planck's constant.
Project definition study for research facility access and science education
Rosen, S.P. [Univ. of Texas, Arlington, TX (United States). Coll. of Science; Teplitz, V.L. [Southern Methodist Univ., Dallas, TX (United States). Physics Dept.
1994-10-01T23:59:59.000Z
This UTA/SMU project definition study describes critical customer services and research programs which draw upon SSC assets to meet regional needs in two major components: Science Education; Academic/Small Business R and D Facility Access. The location of the SSC in Texas constituted a significant stimulus to R and D activities in Texas, encouraging new initiatives in high energy physics, as well as stimulating other areas of physics and related sciences. An important aspect of maximizing the utility of the investment in the SSC should be to re-allocate SSC assets in ways that maintain that momentum. This study addresses several ways to achieve that end, extending benefits to all of physics, the sciences in general and particularly, to science education.
Building America Research Benchmark Definition: Updated December 20, 2007
Hendron, R.
2008-01-01T23:59:59.000Z
To track progress toward aggressive multi-year whole-house energy savings goals of 40-70% and onsite power production of up to 30%, DOE's Residential Buildings Program and NREL developed the Building America Research Benchmark in consultation with the Building America industry teams. The Benchmark is generally consistent with mid-1990s standard practice, as reflected in the Home Energy Rating System (HERS) Technical Guidelines (RESNET 2002), with additional definitions that allow the analyst to evaluate all residential end-uses, an extension of the traditional HERS rating approach that focuses on space conditioning and hot water. Unlike the reference homes used for HERS, EnergyStar, and most energy codes, the Benchmark represents typical construction at a fixed point in time so it can be used as the basis for Building America's multi-year energy savings goals without the complication of chasing a 'moving target'.
Building America Research Benchmark Definition, Updated December 15, 2006
Hendron, R.
2007-01-01T23:59:59.000Z
To track progress toward aggressive multi-year whole-house energy savings goals of 40-70% and onsite power production of up to 30%, DOE's Residential Buildings Program and NREL developed the Building America Research Benchmark in consultation with the Building America industry teams. The Benchmark is generally consistent with mid-1990s standard practice, as reflected in the Home Energy Rating System (HERS) Technical Guidelines (RESNET 2002), with additional definitions that allow the analyst to evaluate all residential end-uses, an extension of the traditional HERS rating approach that focuses on space conditioning and hot water. Unlike the reference homes used for HERS, EnergyStar, and most energy codes, the Benchmark represents typical construction at a fixed point in time so it can be used as the basis for Building America's multi-year energy savings goals without the complication of chasing a ''moving target''.
Building America Research Benchmark Definition: Updated August 15, 2007
Hendron, R.
2007-09-01T23:59:59.000Z
To track progress toward aggressive multi-year whole-house energy savings goals of 40-70% and onsite power production of up to 30%, DOE's Residential Buildings Program and NREL developed the Building America Research Benchmark in consultation with the Building America industry teams. The Benchmark is generally consistent with mid-1990s standard practice, as reflected in the Home Energy Rating System (HERS) Technical Guidelines (RESNET 2002), with additional definitions that allow the analyst to evaluate all residential end-uses, an extension of the traditional HERS rating approach that focuses on space conditioning and hot water. Unlike the reference homes used for HERS, EnergyStar, and most energy codes, the Benchmark represents typical construction at a fixed point in time so it can be used as the basis for Building America's multi-year energy savings goals without the complication of chasing a 'moving target'.
Building America Research Benchmark Definition, Updated December 29, 2004
Hendron, R.
2005-02-01T23:59:59.000Z
To track progress toward aggressive multi-year whole-house energy savings goals of 40-70% and onsite power production of up to 30%, the U.S. Department of Energy (DOE) Residential Buildings Program and the National Renewable Energy Laboratory (NREL) developed the Building America Research Benchmark in consultation with the Building America industry teams. The Benchmark is generally consistent with mid-1990s standard practice, as reflected in the Home Energy Rating System (HERS) Technical Guidelines (RESNET 2002), with additional definitions that allow the analyst to evaluate all residential end-uses, an extension of the traditional HERS rating approach that focuses on space conditioning and hot water. A series of user profiles, intended to represent the behavior of a ''standard'' set of occupants, was created for use in conjunction with the Benchmark.
Calculations in support of a potential definition of large release
Hanson, A.L.; Davis, R.E.; Mubayi, V.
1994-05-01T23:59:59.000Z
The Nuclear Regulatory Commission has stated a hierarchy of safety goals with the qualitative safety goals as Level I of the hierarchy, backed up by the quantitative health objectives as Level II and the large release guideline as Level III. The large release guideline has been stated in qualitative terms as a magnitude of release of the core inventory whose frequency should not exceed 10{sup -6} per reactor year. However, the Commission did not provide a quantitative specification of a large release. This report describes various specifications of a large release and focuses, in particular, on an examination of releases which have a potential to lead to one prompt fatality in the mean. The basic information required to set up the calculations was derived from the simplified source terms which were obtained from approximations of the NUREG-1150 source terms. Since the calculation of consequences is affected by a large number of assumptions, a generic site with a (conservatively determined) population density and meteorology was specified. At this site, various emergency responses (including no response) were assumed based on information derived from earlier studies. For each of the emergency response assumptions, a set of calculations were performed with the simplified source terms; these included adjustments to the source terms, such as the timing of the release, the core inventory, and the release fractions of different radionuclides, to arrive at a result of one mean prompt fatality in each case. Each of the source terms, so defined, has the potential to be a candidate for a large release. The calculations show that there are many possible candidate source terms for a large release depending on the characteristics which are felt to be important.
Monogamy inequality in terms of negativity for three-qubit states
Ou, Y.-C.; Fan Heng [Institute of Physics, Chinese Academy of Sciences, Beijing 100080 (China)
2007-06-15T23:59:59.000Z
We propose an entanglement measure to quantify three-qubit entanglement in terms of negativity. A monogamy inequality analogous to the Coffman-Kundu-Wootters inequality is established. This consequently leads to a definition of residual entanglement, which is referred to as the three-{pi} in order to distinguish it from the three-tangle. The three-{pi} is proved to be a natural entanglement measure. By contrast to the three-tangle, it is shown that the three-{pi} always gives greater than zero values for pure states belonging to the W and Greenberger-Horne-Zeilinger classes, implying that three-way entanglement always exists for them; the three-tangle generally underestimates the three-way entanglement of a given system. This investigation will offer an alternative tool to understand genuine multipartite entanglement.
Supernate source term analysis: Revision 1
Aponte, C.I.
1994-10-13T23:59:59.000Z
The HM Process (modified PUREX) has been used in the H-Canyon since 1959 to recover uranium and byproduct neptunium. The PUREX process has been used in the Separation facilities in F and H-Area. This report analyzes both the inhalation and ingestion radionuclide dose impact of the HM and PUREX process soluble portion of their waste streams. The spent fuel assemblies analyzed are the Mark 16B, Mar 22 for the HM process, and the Mark 31A, Mark 31B for the PUREX process. The results from this analysis are combined with an analysis of the current Safety Analysis Report SAR source term to evaluate source terms for HLW supernate. Analysis of fission yield data and SAR source term values demonstrates that a limited number of radionuclides contribute 1% or more to the total dose and that cesium and plutonium isotopes are the radionuclides with major impact in the supernate source term. This report analyses both volatile and evaporative impact as recommended by DOE guidance. In reality, the only radionuclide volatilized during evaporative conditions is tritium. No evidence of selective volatility occurs during forced evaporation in HLW. The results obtained permit reducing the list of radionuclides to be considered in the development of source terms to support the High Level Waste Safety Analysis Report.
Fernando Rego Loup
2013-05-30T23:59:59.000Z
We use the Conformal Metric as described in Kar-Sinha work on Gravitational Bending of Light in a 5D Spacetime to recompute the equations of the 5D Force in Basini-Capozziello-Leon Formalism and we arrive at a result that possesses some advantages. The equations of the Extra Force as proposed by Leon are now more elegant in Conformal Formalism and many algebraic terms can be simplified or even suppressed. Also we recompute the Kar-Sinha Gravitational Bending of Light affected by the presence of the Extra Dimension and analyze the Superluminal Chung-Freese Features of this Formalism describing the advantages of the Chung-Freese BraneWorld when compared to other Superluminal spacetime metrics(eg:Warp Drive) and we describe why the Extra Dimension is invisible and how the Extra Dimension could be made visible at least in theory.We also examine the Maartens-Clarkson Black Holes in 5D(Black Strings) coupled to massive Kaluza-Klein graviton modes predicted by Extra Dimensions theories and we study experimental detection of Extra Dimensions on-board LIGO and LISA Space Telescopes.We also propose the use of International Space Station(ISS) to measure the additional terms(resulting from the presence of Extra Dimensions) in the Kar-Sinha Gravitational Bending of Light in Outer Space to verify if we really lives in a Higher Dimensional Spacetime.Also we demonstrate that Particle $Z$ can only exists if the 5D spacetime exists.
Broader source: Energy.gov [DOE]
In the long term, advanced materials such as magnesium and carbon fiber reinforced composites could reduce the weight of some components by 50-75 percent.
Impact of Biodiesel on the Near-term Performance and Long-term...
Broader source: Energy.gov (indexed) [DOE]
Temperature and higher NO 2 :NOx have negligible impact on overall NOx Conversion Biodiesel Near-term Impacts Literature Review "Effect of Biodiesel Blends on Urea...
Long-Term Stewardship - Hanford Site
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D ELong Term CareLong-Term
Resume of definitions of "tangent vector" Let M be a manifold, m M, and X = (X1
Feldman, Joel
Resum麓e of definitions of "tangent vector" Let M be a manifold, m M, and X = (X1 , 路 路 路Xd ) : U Joel Feldman. 2008. All rights reserved. September 30, 2008 Resum麓e of definitions of "tangent vector rights reserved. September 30, 2008 Resum麓e of definitions of "tangent vector" 2 #12;
Horizon Mechanics and Asymptotic Symmetries with a Immirzi-like Parameter in 2+1 Dimensions
Rudranil Basu; Ayan Chatterjee
2011-04-06T23:59:59.000Z
Starting with a generalized theory of 2+1 gravity containing an Immirzi like parameter, we derive the modified laws of black hole mechanics using the formalism of weak isolated horizons. Definitions of horizon mass and angular momentum emerge naturally in this framework. We further go on to analyze the asymptotic symmetries, as first discussed by Brown and Henneaux, and analyze their implications in a completely covariant phase space framework.
Uranium-233 waste definition: Disposal options, safeguards, criticality control, and arms control
Forsberg, C.W.; Storch, S.N. [Oak Ridge National Lab., TN (United States); Lewis, L.C. [Lockheed Martin Idaho Technology Co., Idaho Falls, ID (United States). Idaho National Engineering and Environmental Lab.
1998-07-07T23:59:59.000Z
The US investigated the use of {sup 233}U for weapons, reactors, and other purposes from the 1950s into the 1970s. Based on the results of these investigations, it was decided not to use {sup 233}U on a large scale. Most of the {sup 233}U-containing materials were placed in long-term storage. At the end of the cold war, the US initiated, as part of its arms control policies, a disposition program for excess fissile materials. Other programs were accelerated for disposal of radioactive wastes placed in storage during the cold war. Last, potential safety issues were identified related to the storage of some {sup 233}U-containing materials. Because of these changes, significant activities associated with {sup 233}U-containing materials are expected. This report is one of a series of reports to provide the technical bases for future decisions on how to manage this material. A basis for defining when {sup 233}U-containing materials can be managed as waste and when they must be managed as concentrated fissile materials has been developed. The requirements for storage, transport, and disposal of radioactive wastes are significantly different than those for fissile materials. Because of these differences, it is important to classify material in its appropriate category. The establishment of a definition of what is waste and what is fissile material will provide the guidance for appropriate management of these materials. Wastes are defined in this report as materials containing sufficiently small masses or low concentrations of fissile materials such that they can be managed as typical radioactive waste. Concentrated fissile materials are defined herein as materials containing sufficient fissile content such as to warrant special handling to address nuclear criticality, safeguards, and arms control concerns.
CCPExecutiveSummary The Long-term
Feigon, Brooke
)1603 593715 A: UEA, Norwich, NR4 7TJ The Long-term Impact of Wind Power on Electricity Prices and Generating in the amount of wind generation. The European Union is committed to obtaining 20% of its energy from renewable through to short-run price volatility: when wind generation is high, prices will tend to be lower than
Long-term Silvicultural & Ecological Studies
responses at the Hubbard Brook Experimental Forest, New Hampshire John L. Campbell, Amey S. Bailey, Christopher Eagar, Mark B. Green, and John J. Battles 1 Long Term Research at the Caroline A. Fox Research Brent R. Frey, Richard Campbell, Marlyse C. Duguid, and Mark S. Ashton 15 Designing New Programs
SENATE ANIMAL ETHICS COMMITTEE TERMS OF REFERENCE
Jarrett, Thomas H.
and Teaching; the Appeal to Senate Animal Ethics Committee Standard Operating Procedures, the UCT Code from Faculty Animal Ethics Committees in terms of the Standard Operating Procedure for Appeals clarification and transparency in sharing information to ensure the maintenance of the highest ethical standards
Risk Management Steering Committee Terms of Reference
Victoria, University of
Risk Management Steering Committee Terms of Reference October 2009 1.0 Purpose The purposes of the Steering Committee are: a) to follow a continuous process to understand and communicate risk from an university-wide perspective: b) to provide a university-wide opportunity to discuss risk issues, including
Iman, R.L. (Sandia National Labs., Albuquerque, NM (USA)); Helton, J.C. (Arizona State Univ., Tempe, AZ (USA)); Johnson, J.D. (Science Applications International Corp., Albuquerque, NM (USA))
1990-05-01T23:59:59.000Z
The individual plant analyses in the US Nuclear Regulatory Commission's reassessment of the risk from commercial nuclear power plants (NUREG-1150) consist of four parts: systems analysis, accident progression analysis, source term analysis, and consequence analysis. Careful definition of the interfaces between these parts is necessary for both information flow and computational efficiency. This document has been designed for users of the PARTITION computer program developed by the authors at Sandia National Laboratories for defining the interface between the source term analysis (performed with the XXSOR programs) and the consequence analysis (performed with the MACCS program). This report provides a tutorial that details how the interactive partitioning is performed, along with detailed information on the partitioning process. The PARTITION program was written in ANSI standard FORTRAN 77 to make the code as machine-independent (i.e., portable) as possible. 9 refs., 4 figs.
E. S. Nani; M. P. Gururajan
2014-04-13T23:59:59.000Z
In this paper, we show how to incorporate cubic and hexagonal anisotropies in interfacial energies in phase field models; this incorporation is achieved by including upto sixth rank tensor terms in the free energy expansion, assuming that the free energy is only a function of coarse grained composition, its gradient, curvature and aberration. We derive the number of non-zero and independent components of these tensors. Further, by demanding that the resultant interfacial energy is positive definite for inclusion of each of the tensor terms individually, we identify the constraints imposed on the independent components of these tensors. The existing results in the invariant group theory literature can be used to simplify the process of construction of some (but not all) of the higher order tensors. Finally, we derive the relevant phase field evolution equations.
Quantization of Space and Time in 3 and in 4 Space-time Dimensions
G. 't Hooft
1996-08-16T23:59:59.000Z
The fact that in Minkowski space, space and time are both quantized does not have to be introduced as a new postulate in physics, but can actually be derived by combining certain features of General Relativity and Quantum Mechanics. This is demonstrated first in a model where particles behave as point defects in 2 space dimensions and 1 time, and then in the real world having 3+1 dimensions. The mechanisms in these two cases are quite different, but the outcomes are similar: space and time form a (non-cummutative) lattice. These notes are short since most of the material discussed in these lectures is based on two earlier papers by the same author (gr-qc/9601014 and gr-qc/9607022), but the exposition given in the end is new.
Statistics of the gravitational force in various dimensions of space: from Gaussian to Levy laws
Pierre-Henri Chavanis
2009-07-28T23:59:59.000Z
We discuss the distribution of the gravitational force created by a Poissonian distribution of field sources (stars, galaxies,...) in different dimensions of space d. In d=3, it is given by a Levy law called the Holtsmark distribution. It presents an algebraic tail for large fluctuations due to the contribution of the nearest neighbor. In d=2, it is given by a marginal Gaussian distribution intermediate between Gaussian and Levy laws. In d=1, it is exactly given by the Bernouilli distribution (for any particle number N) which becomes Gaussian for N>>1. Therefore, the dimension d=2 is critical regarding the statistics of the gravitational force. We generalize these results for inhomogeneous systems with arbitrary power-law density profile and arbitrary power-law force in a d-dimensional universe.
Hydrogen atom in space with a compactified extra dimension and potential defined by Gauss' law
Martin Bure; Petr Siegl
2014-09-30T23:59:59.000Z
We investigate the consequences of one extra spatial dimension for the stability and energy spectrum of the non-relativistic hydrogen atom with a potential defined by Gauss' law, i.e. proportional to $1/|x|^2$. The additional spatial dimension is considered to be either infinite or curled-up in a circle of radius $R$. In both cases, the energy spectrum is bounded from below for charges smaller than the same critical value and unbounded from below otherwise. As a consequence of compactification, negative energy eigenstates appear: if $R$ is smaller than a quarter of the Bohr radius, the corresponding Hamiltonian possesses an infinite number of bound states with minimal energy extending at least to the ground state of the hydrogen atom.
Everything But: Exploring Definitions of Sexual Outercourse Among Undergraduate Students
Menn, Mindy Alison
2011-02-22T23:59:59.000Z
was conducted at a large Southern university. For this phase, 426 students responded to a 34-item online survey. After providing basic demographic information, students were asked to select the single term to describe sexual behaviors that do not include penile...
U.S. Department of Energy Project Definition Rating Index Guide
Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]
2010-07-22T23:59:59.000Z
This Guide assists individuals and teams involved in conducting assessments of project definition (i.e., how well front-end planning has been conducted to define project scope) using a numerical project management tool developed by the Construction Industry Institute (CII), tailored for DOE use. Called the Project Definition Rating Index (PDRI), the PDRI is a simple but powerful tool that facilitates the measurement of the degree of scope definition for completeness for traditional construction projects, both nuclear and non-nuclear. No cancellations.
de Lijser, Peter
1 SAMPLE GENERAL TERMS WHEN PURCHASING SERVICES* ACTUAL TERMS REQUIRED WILL BE DETERMINED Contracts and Procurement (x4532) if you have questions regarding purchasing services. 1. Independent Status in an independent capacity and not as officers or employees or agents of the State of California. While Contractor
Determining Long-Term Performance of Cool Storage Systems from Short-Term Tests, Final Report
Reddy, T. A.; Elleson, J.; Haberl, J. S.
2000-01-01T23:59:59.000Z
This is the final report for ASHRAE Research Project 1004-RP: Determining Long-Term Performance of Cool Storage Systems from Short-Term Tests. This report presents the results of the development and application of the methodology to Case Study #2...
Combination of Long Term and Short Term Forecasts, with Application to Tourism
Abu-Mostafa, Yaser S.
Combination of Long Term and Short Term Forecasts, with Application to Tourism Demand Forecasting that are combined. As a case study, we consider the problem of forecasting monthly tourism numbers for inbound tourism to Egypt. Specifically, we con- sider 33 source countries, as well as the aggregate. The novel
Black hole radiation of spin-1 particles in (1+2) dimensions
S. I. Kruglov
2014-11-26T23:59:59.000Z
The radiation of vector particles by black holes in (1+2) dimensions is investigated within the WKB approximation. We consider the process of quantum tunnelling of bosons through an event horizon of the black hole. The emission temperature for the Schwarzschild background geometry coincides with the Hawking temperature and for the Rindler spacetime the temperature is the Unruh temperature. We also obtain the radiation temperatures for the de Sitter spacetime.
QCD condensates of dimension D=6 and D=8 from hadronic tau-decays
A. A. Almasy; K. Schilcher; H. Spiesberger
2006-12-22T23:59:59.000Z
The high-precision data from hadronic tau decays allows one to extract information on QCD condensates. Using the finalized ALEPH data, we obtain a more rigorous determination of the dimension 6 and 8 condensates for the V-A correlator. In particular, we find that the recent data fix a certain linear combination of these QCD condensates to a precision at the level of O(2%). Our approach relies on more general assumptions than alternative approaches based on finite energy sum rules.
Effect of uneven sampling on correlation dimension computed from time series data
Sandip V. George; G. Ambika; R. Misra
2014-10-16T23:59:59.000Z
Observational data, especially astrophysical data, is often limited by uneven sampling that arises due to lack of observations for a variety of reasons. Such inadvertent gaps are usually smoothed over using interpolation techniques. However the smoothing techniques can introduce artificial effects, especially when non-linear analysis is undertaken. We investigate how uneven sampling can affect the computed values of correlation dimension of the system, without using any interpolation. For this we introduce gaps artificially in synthetic data derived from standard chaotic systems, like the Rossler and Lorenz, with frequency of occurrence and size of missing data drawn from Gaussian distributions. Then we study the changes in correlation dimension with change in the distributions of frequency of gaps introduced and size of data removed. We find that for a considerable range of gap frequency and size, the value of correlation dimension is not significantly affected. This would mean that in such specific cases, the calculated values can still be reliable and acceptable. Thus our study introduces a method of checking the reliability of computed correlation dimension values by calculating the distribution of gaps with respect to its size and frequency and comparing with the standard plots presented in the paper. This is illustrated for real world examples of the data from three variable stars, R Scuti, U Monocerotis and SU Tauri. We also demonstrate how a cubic spline interpolation can cause an unevenly sampled noisy data to be misinterpreted as being chaotic in origin. This is demonstrated for the non chaotic light curve of variable star SS Cygni, which gives a saturated D2 value, when interpolated using a cubic spline.
Simple thermodynamics of strongly coupled one-component-plasma in two and three dimensions
Khrapak, Sergey A., E-mail: Sergey.Khrapak@dlr.de [Forschungsgruppe Komplexe Plasmen, Deutsches Zentrum f黵 Luft- und Raumfahrt, Oberpfaffenhofen (Germany); Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow (Russian Federation); Khrapak, Alexey G. [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow (Russian Federation)
2014-10-15T23:59:59.000Z
Simple analytical approximations for the internal energy of the strongly coupled one-component-plasma in two and three dimensions are discussed. As a result, new practical expressions for the internal energy in the fluid phase are proposed. Their accuracy is checked by evaluating the location of the fluid-solid phase transition from the free energy consideration. Possible applications to other related systems are briefly discussed.
UN THEOR`EME SUR LES ACTIONS DE GROUPES DE DIMENSION INFINIE
Paris-Sud XI, Universit茅 de
UN TH麓EOR`EME SUR LES ACTIONS DE GROUPES DE DIMENSION INFINIE JACQUES F麓EJOZ AND MAURICIO GARAY R qui recourent `a un th麓eor`eme d'inversion locale (e.g. [3, 5] ou [4, Th麓eor`eme 4.2.5]), par l麓ee par Kolmogo- rov et Arnold dans leur d麓emonstration du th麓eor`eme des tores invariants [2, 1]. Le th麓eor
Gravity particles from Warped Extra Dimensions, a review. Part I - KK Graviton
Alexandra Oliveira
2014-04-01T23:59:59.000Z
On face of the latest LHC experimental results on the direct searches for Beyond Standard Model physics we review the basic of Warped Extra Dimensions scenarios and the physics of the heavy gravity particles, their most unique signature. In this first part we intend to summarize the physics behind the hypothesis of a heavy spin-2 Beyond Standard Model particle on the context of WED and also to address some of the interesting phenomenology issues of model building hypothesis.
Computing Characteristics of One Class of Non-commutative Hypercomplex Number Systems of 4-dimension
Yakiv O. Kalinovsky; Dmitry V. Lande; Yuliya E. Boyarinova; Alina S. Turenko
2014-09-09T23:59:59.000Z
The class of non-commutative hypercomplex number systems (HNS) of 4-dimension constructed by using of non-commutative procedure of Grassman-Clifford doubling of 2-dimensional systems is investigated in the article. All HNS of this class are constructed, algorithms of performance of operations and methods of algebraic characteristics calculation in them, such as conjugation, normalization, a type of zero dividers are investigated. Formulas of exponential functions representation in these systems are displayed.
Identification and definition of unbundled electric generation and transmission services
Kirby, B.; Hirst, E.; Vancoevering, J.
1995-03-01T23:59:59.000Z
State and federal regulators, private and public utilities, large and small customers, power brokers and marketers, and others are engaged in major debates about the future structure of the electric industry. Although the outcomes are far from certain, it seems clear that customers will have much greater choices about the electric services they purchase and from whom they buy these services. This report examines the ``ancillary`` services that are today buried within the typical vertically integrated utility. These ancillary services support and make possible the provision of the basic services of generating capacity, energy supply, and power delivery. These ancillary services include: Management of generating units; reserve generating capacity to follow variations in customer loads, to provide capacity and energy when generating units or transmission lines suddenly fall, to maintain electric-system stability, and to provide local-area security; transmission-system monitoring and control; replacement of real power and energy losses; reactive-power management and voltage regulation; transmission reserves; repair and maintenance of the transmission network; metering, billing, and communications; and assurance of appropriate levels of power quality. Our focus in this report, the first output from a larger Oak Ridge National Laboratory project, is on identification and definition of these services. Later work in this project will examine more closely the costs and pricing options for each service.
Optimizing Moderator Dimensions for Neutron Scattering at the Spallation Neutron Source
Zhao, Jinkui [ORNL] [ORNL; Robertson, Lee [ORNL] [ORNL; Herwig, Kenneth W [ORNL] [ORNL; Gallmeier, Franz X [ORNL] [ORNL; Riemer, Bernie [ORNL] [ORNL
2013-01-01T23:59:59.000Z
In this work, we investigate the effect of neutron moderator dimensions on the performance of neutron scattering instruments at the Spallation Neutron Source. In a recent study of the planned second target station at the Spallation Neutron Source (SNS) facility [1,2], we have found that the dimensions of a moderator play a significant role in determining its surface brightness. A smaller moderator may be significantly brighter for a smaller viewing area [4]. One of the immediate implications of this finding is that for modern neutron scattering instrument designs, moderator dimensions and brightness have to be incorporated as an integrated optimization parameter. Here, we establish a strategy of matching neutron scattering instruments with moderators using analytical and Monte Carlo techniques. In order to simplify our treatment, we group the instruments into two broad categories, those with natural collimation and those that use neutron guide systems. We found that the cross-sections of the sample and the neutron guide, respectively, are the deciding factors for choosing the moderator. Beam divergence plays no role as long as it is within the reach of practical constraints. Namely, the required divergence is not too large for the guide or sample to be located close enough to the moderator on an actual spallation source.
BWR Source Term Generation and Evaluation
J.C. Ryman
2003-07-31T23:59:59.000Z
This calculation is a revision of a previous calculation (Ref. 7.5) that bears the same title and has the document identifier BBAC00000-01717-0210-00006 REV 01. The purpose of this revision is to remove TBV (to-be-verified) -41 10 associated with the output files of the previous version (Ref. 7.30). The purpose of this and the previous calculation is to generate source terms for a representative boiling water reactor (BWR) spent nuclear fuel (SNF) assembly for the first one million years after the SNF is discharged from the reactors. This calculation includes an examination of several ways to represent BWR assemblies and operating conditions in SAS2H in order to quantify the effects these representations may have on source terms. These source terms provide information characterizing the neutron and gamma spectra in particles per second, the decay heat in watts, and radionuclide inventories in curies. Source terms are generated for a range of burnups and enrichments (see Table 2) that are representative of the waste stream and stainless steel (SS) clad assemblies. During this revision, it was determined that the burnups used for the computer runs of the previous revision were actually about 1.7% less than the stated, or nominal, burnups. See Section 6.6 for a discussion of how to account for this effect before using any source terms from this calculation. The source term due to the activation of corrosion products deposited on the surfaces of the assembly from the coolant is also calculated. The results of this calculation support many areas of the Monitored Geologic Repository (MGR), which include thermal evaluation, radiation dose determination, radiological safety analyses, surface and subsurface facility designs, and total system performance assessment. This includes MGR items classified as Quality Level 1, for example, the Uncanistered Spent Nuclear Fuel Disposal Container (Ref. 7.27, page 7). Therefore, this calculation is subject to the requirements of the Quality Assurance Requirements and Description (Ref. 7.28). The performance of the calculation and development of this document are carried out in accordance with AP-3.124, ''Design Calculation and Analyses'' (Ref. 7.29).
Definition of the Brittle-Ductile Transition in the Coso Geothermal...
Brittle-Ductile Transition in the Coso Geothermal Field East-Central California USA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Definition...
Colorado 4 CCR 723-3001, Definitions for Rules Regulating Electric...
CCR 723-3001, Definitions for Rules Regulating Electric Utilities Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- RegulationRegulation: Colorado...
Page 7 of 37 *See Section 12 for definitions of italicized words*
Page 7 of 37 *See Section 12 for definitions of italicized words* 4.0 ETHICS A. Conflict the Director of Business Operations as far in advance as possible but at least ten (10) business days prior
Outage Rate Regions for the MISO Interference Channel: Definitions and Interpretations
Lindblom, Johannes; Larsson, Erik G
2011-01-01T23:59:59.000Z
We consider the slow-fading two-user multiple-input single-output (MISO) interference channel (IC), where the receivers treat the interference as additive Gaussian noise. We study the rate points that can be achieved, allowing a non-zero outage probability. The points which meet the outage probability specification constitute a so-called outage rate region. There exist several definitions of the outage rate regions for the IC, as for the broadcast and the multiple-access channels. We give four definitions for the outage region of the MISO IC. The definitions differ on whether the rates are declared in outage jointly or individually and whether there is instantaneous or statistical channel state information (CSI) at the transmitters. For the statistical CSI scenario, we discuss how to find the outage probabilities in closed form. We provide interpretations of the definitions and compare the corresponding regions via analytical and numerical results.
On the definiteness of associated energy-momentum tensors to a class of general variation problems
Kurt Pagani
2013-05-31T23:59:59.000Z
We show the point-wise definiteness and some other properties of the energy-momentum tensor for a certain class of Euler-Lagrange equations under quite general conditions.
NGNP: High Temperature Gas-Cooled Reactor Key Definitions, Plant Capabilities, and Assumptions
Wayne Moe
2013-05-01T23:59:59.000Z
This document provides key definitions, plant capabilities, and inputs and assumptions related to the Next Generation Nuclear Plant to be used in ongoing efforts related to the licensing and deployment of a high temperature gas-cooled reactor. These definitions, capabilities, and assumptions were extracted from a number of NGNP Project sources such as licensing related white papers, previously issued requirement documents, and preapplication interactions with the Nuclear Regulatory Commission (NRC).
Hydrogen Storage Technologies: Long-Term Commercialization Approach...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Technologies: Long-Term Commercialization Approach with First Products First Hydrogen Storage Technologies: Long-Term Commercialization Approach with First Products First Presented...
Vehicle Technologies Office: Long-Term Lightweight Materials...
Long-Term Lightweight Materials Research (Magnesium and Carbon Fiber) Vehicle Technologies Office: Long-Term Lightweight Materials Research (Magnesium and Carbon Fiber) In the long...
Identification and Characterization of Near-Term Direct Hydrogen...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
and Characterization of Near-Term Direct Hydrogen Proton Exchange Membrane Fuel Cell Markets Identification and Characterization of Near-Term Direct Hydrogen Proton Exchange...
Term structure of interest rates and monetary policy
Wu, Jing Cynthia
2011-01-01T23:59:59.000Z
Vestin (2006) 慉 joint econometric model of macroeconomicfrom the perspective of econometric methodology, in terms ofboth in terms of the econometric standard errors and
Delivering Renewable Hydrogen: A Focus on Near-Term Applications...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Delivering Renewable Hydrogen: A Focus on Near-Term Applications Delivering Renewable Hydrogen: A Focus on Near-Term Applications Agenda for the Delvering Renewable Hydrogen...
accident source term: Topics by E-print Network
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42 Long-term investigations of radiocaesium activity concentrations in carps in north Croatia after the Chernobyl accident CERN Preprints Summary: Long-term investigations of...
accident source terms: Topics by E-print Network
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42 Long-term investigations of radiocaesium activity concentrations in carps in north Croatia after the Chernobyl accident CERN Preprints Summary: Long-term investigations of...
Electricity storage for short term power system service (Smart...
Electricity storage for short term power system service (Smart Grid Project) Jump to: navigation, search Project Name Electricity storage for short term power system service...
Los Alamos National Laboratory announces strategy for long-term...
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Strategy for long-term environmental sustainability Los Alamos National Laboratory announces strategy for long-term environmental sustainability Provides a blueprint for protecting...
DOE Acquisition and Project Management (APM) Glossary of Terms...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
DOE Acquisition and Project Management (APM) Glossary of Terms Handbook FINAL VERSION 9-30-2014 DOE Acquisition and Project Management (APM) Glossary of Terms Handbook FINAL...
Sample Residential Program Term Sheet | Department of Energy
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Sample Residential Program Term Sheet Sample Residential Program Term Sheet A sample for defining and elaborating on the specifics of a clean energy loan program. Sample...
Influence of Nuclear Fuel Cycles on Uncertainty of Long Term...
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Influence of Nuclear Fuel Cycles on Uncertainty of Long Term Performance of Geologic Disposal Systems Influence of Nuclear Fuel Cycles on Uncertainty of Long Term Performance of...
A definition of thermodynamic entropy valid for non-equilibrium states and few-particle systems
Gian Paolo Beretta; Enzo Zanchini
2014-11-19T23:59:59.000Z
From a new rigorous formulation of the general axiomatic foundations of thermodynamics we derive an operational definition of entropy that responds to the emergent need in many technological frameworks to understand and deploy thermodynamic entropy well beyond the traditional realm of equilibrium states of macroscopic systems. The new definition is achieved by avoiding to resort to the traditional concepts of "heat" (which restricts $a$ $priori$ the traditional definitions of entropy to the equilibrium domain) and of "thermal reservoir" (which restricts $in$ $practice$ our previous definitions of non-equilibrium entropy to the many-particle domain). The measurement procedure that defines entropy is free from intrinsic limitations and can be applied, $in$ $principle$, even to non-equilibrium states of few-particle systems, provided they are separable and uncorrelated. The construction starts from a previously developed set of carefully worded operational definitions for all the basic concepts. Then, through a new set of fully spelled-out fundamental hypotheses (four postulates and five assumptions) we derive the definitions of energy and entropy of any state, and of temperature of any stable equilibrium state. Finally, we prove the principle of entropy non-decrease, the additivity of entropy differences, the maximum entropy principle, and the impossibility of existence of a thermal reservoir.
Estimating long-term mean winds from short-term wind data
Barchet, W.R.; Davis, W.E.
1983-08-01T23:59:59.000Z
The estimation of long-term mean winds from short-term data is especially important in the area of wind energy. It is desirable to obtain reliable estimates of the long-term wind speed from as short a period of on-site measurements as possible. This study examined seven different methods of estimating the long-term average wind speed and compared the performance of these techniques. Three linear, three weather pattern, and one eigenvector methods were compared for measurement periods ranging from 3 months to 36 months. Average errors, both relative and absolute, and the rms errors in the techniques were determined. The best technique for less than 12 months of measurement was the eigenvector method using weekly mean wind speeds. However, this method was only slightly better than the linear adjusted method. When 12 or more months of data were used, the difference in errors between techniques was found to be slight.
SPE 124332 (revised) Hierarchical Long-Term and Short-Term Production Optimization
Van den Hof, Paul
. In our study we used a 3-dimensional reservoir in a fluvial depositional environment with a production at maximizing short-term production. The optimal life-cycle waterflooding strategy that includes short
Long-term study of backgrounds in the DRIFT-II directional dark matter experiment
J. Brack; E. Daw; A. Dorofeev; A. C. Ezeribe; J. R. Fox; J. -L. Gauvreau; M. Gold; L. J. Harmon; J. Harton; R. Lafler; J. M. Landers; R. Lauer; E. R. Lee; D. Loomba; J. A. J. Matthews; E. H. Miller; A. Monte; A. StJ. Murphy; S. M. Paling; N. Phan; M. Pipe; M. Robinson; S. Sadler; A. Scarff; D. P. Snowden-Ifft; N. J. C. Spooner; S. Telfer; D. Walker; L. Yuriev
2014-05-12T23:59:59.000Z
Low-pressure gas Time Projection Chambers being developed for directional dark matter searches offer a technology with strong particle identification capability combined with the potential to produce a definitive detection of Galactic Weakly Interacting Massive Particle (WIMP) dark matter. A source of events able to mimic genuine WIMP-induced nuclear recoil tracks arises in such experiments from the decay of radon gas inside the vacuum vessel. The recoils that result from associated daughter nuclei are termed Radon Progeny Recoils (RPRs). We present here experimental data from a long-term study using the DRIFT-II directional dark matter experiment at the Boulby Underground Laboratory of the RPRs, and other backgrounds that are revealed by relaxing the normal cuts that are applied to WIMP search data. By detailed examination of event classes in both spatial and time coordinates using 5.5 years of data, we demonstrate the ability to determine the origin of 4 specific background populations and describe development of new technology and mitigation strategies to suppress them.
DeBartolo, Jack, III
1994-01-01T23:59:59.000Z
This thesis addresses the experiential dimension of architecture as it relates to the dynamics of light and the universal presence of the phenomenal. The effort is to (re)imagine the environment: to behold the pageantry ...
Ilker, Efe
Distinctive orderings and phase diagram structures are found, from renormalization-group theory, for odd q-state clock spin-glass models in d = 3 dimensions. These models exhibit asymmetric phase diagrams, as is also the ...
Couch, Sean M., E-mail: smc@flash.uchicago.edu [Flash Center for Computational Science, Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States)
2013-09-20T23:59:59.000Z
We present one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) hydrodynamical simulations of core-collapse supernovae including a parameterized neutrino heating and cooling scheme in order to investigate the critical core neutrino luminosity (L{sub crit}) required for explosion. In contrast to some previous works, we find that 3D simulations explode later than 2D simulations, and that L{sub crit} at fixed mass accretion rate is somewhat higher in three dimensions than in two dimensions. We find, however, that in two dimensions L{sub crit} increases as the numerical resolution of the simulation increases. In contrast to some previous works, we argue that the average entropy of the gain region is in fact not a good indicator of explosion but is rather a reflection of the greater mass in the gain region in two dimensions. We compare our simulations to semi-analytic explosion criteria and examine the nature of the convective motions in two dimensions and three dimensions. We discuss the balance between neutrino-driven buoyancy and drag forces. In particular, we show that the drag force will be proportional to a buoyant plume's surface area while the buoyant force is proportional to a plume's volume and, therefore, plumes with greater volume-to-surface-area ratios will rise more quickly. We show that buoyant plumes in two dimensions are inherently larger, with greater volume-to-surface-area ratios, than plumes in three dimensions. In the scenario that the supernova shock expansion is dominated by neutrino-driven buoyancy, this balance between buoyancy and drag forces may explain why 3D simulations explode later than 2D simulations and why L{sub crit} increases with resolution. Finally, we provide a comparison of our results with other calculations in the literature.
Managing Records for the Long Term - 12363
Montgomery, John V. [U.S. Department of Energy, Office of Legacy Management, Morgantown, West Virginia (United States); Gueretta, Jeanie [U.S. Department of Energy, Office of Legacy Management, Grand Junction, Colorado (United States)
2012-07-01T23:59:59.000Z
The U.S. Department of Energy (DOE) is responsible for managing vast amounts of information documenting historical and current operations. This information is critical to the operations of the DOE Office of Legacy Management. Managing legacy records and information is challenging in terms of accessibility and changing technology. The Office of Legacy Management is meeting these challenges by making records and information management an organizational priority. The Office of Legacy Management mission is to manage DOE post-closure responsibilities at former Cold War weapons sites to ensure the future protection of human health and the environment. These responsibilities include environmental stewardship and long-term preservation and management of operational and environmental cleanup records associated with each site. A primary organizational goal for the Office of Legacy Management is to 'Preserve, Protect, and Share Records and Information'. Managing records for long-term preservation is an important responsibility. Adequate and dedicated resources and management support are required to perform this responsibility successfully. Records tell the story of an organization and may be required to defend an organization in court, provide historical information, identify lessons learned, or provide valuable information for researchers. Loss of records or the inability to retrieve records because of poor records management processes can have serious consequences and even lead to an organisation's downfall. Organizations must invest time and resources to establish a good records management program because of its significance to the organization as a whole. The Office of Legacy Management will continue to research and apply innovative ways of doing business to ensure that the organization stays at the forefront of effective records and information management. DOE is committed to preserving records that document our nation's Cold War legacy, and the Office of Legacy Management will keep records management as a high priority. (authors)
Long-Term Wind Power Variability
Wan, Y. H.
2012-01-01T23:59:59.000Z
The National Renewable Energy Laboratory started collecting wind power data from large commercial wind power plants (WPPs) in southwest Minnesota with dedicated dataloggers and communication links in the spring of 2000. Over the years, additional WPPs in other areas were added to and removed from the data collection effort. The longest data stream of actual wind plant output is more than 10 years. The resulting data have been used to analyze wind power fluctuations, frequency distribution of changes, the effects of spatial diversity, and wind power ancillary services. This report uses the multi-year wind power data to examine long-term wind power variability.
Term Structure Dynamics with Macroeconomic Factors
Park, Ha-Il
2011-02-22T23:59:59.000Z
with Macro Variables I present an a ne term structure model with latent factors and observable macroeco- nomic variables. I denote a state variable vector by Xt = (x1t; ;xkt;xk+1t;:::;xnt)0, where the rstk factors are unobservable and the remaining (n k...) factors are macroe- conomic variables. Suppose that Xt follows an Ito process (2.3) dXt = K[ Xt]dt+ p StdWt; where K is an n n matrix, is an n 1 vector. St is an n n diagonal matrix and the ith diagonal element is given as i + 0iXt, where i is a...
The Long Term Schedule has been
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Lighting Principles and Terms | Department of Energy
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Long Term Innovative Technologies | Department of Energy
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Upcoming Long-Term Operating Schedule
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Short Term Energy Outlook, February 2003
Gasoline and Diesel Fuel Update (EIA)
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Short Term Energy Outlook, January 2003
Gasoline and Diesel Fuel Update (EIA)
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Short Term Energy Outlook, March 2003
Gasoline and Diesel Fuel Update (EIA)
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Short-Term Energy Outlook- May 2003
Gasoline and Diesel Fuel Update (EIA)
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Long Term Care | National Nuclear Security Administration
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Property:Incentive/Terms | Open Energy Information
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E. Elizalde; S. D. Odintsov; A. A. Saharian
2011-02-10T23:59:59.000Z
We investigate the fermionic condensate and the vacuum expectation value of the energy-momentum tensor for a massive fermionic field in the geometry of two parallel plate on the background of Minkowski spacetime with an arbitrary number of toroidally compactified spatial dimensions, in the presence of a constant gauge field. Bag boundary conditions are imposed on the plates and periodicity conditions with arbitrary phases are considered along the compact dimensions. The boundary induced parts in the fermionic condensate and the vacuum energy density are negative, with independence of the phases in the periodicity conditions and of the value of the gauge potential. Interaction forces between the plates are thus always attractive. However, in physical situations where the quantum field is confined to the region between the plates, the pure topological part contributes as well, and then the resulting force can be either attractive or repulsive, depending on the specific phases encoded in the periodicity conditions along the compact dimensions, and on the gauge potential, too. Applications of the general formulas to cylindrical carbon nanotubes are considered, within the framework of a Dirac-like theory for the electronic states in graphene. In the absence of a magnetic flux, the energy density for semiconducting nanotubes is always negative. For metallic nanotubes the energy density is positive for long tubes and negative for short ones. The resulting Casimir forces acting on the edges of the nanotube are attractive for short tubes with independence of the tube chirality. The sign of the force for long nanotubes can be controlled by tuning the magnetic flux. This opens the way to the design of efficient actuators driven by the Casimir force at the nanoscale.
On the vacua of N = 8 gauged supergravity in 4 dimensions
G. Dall'Agata; G. Inverso
2012-01-23T23:59:59.000Z
We discuss a simple procedure for finding vacua of gauged supergravity models, based on the variation of the embedding tensor rather than on a direct minimization of the scalar potential. We apply this procedure to N=8 gauged supergravity in 4 dimensions. We easily recover many of the previously known vacua, also completing their scalar mass spectrum, and we apply our procedure to find a dozen of new analytical vacuum solutions. The analysis shows an interesting structure on the moduli spaces of these vacua and provides new criteria to determine the expected value of the cosmological constant by a simple inspection of the group properties of the embedding tensor.
Fermion Pair Production From an Electric Field Varying in Two Dimensions
J. E. Seger; A. B. Balantekin
1995-06-26T23:59:59.000Z
The Hamiltonian describing fermion pair production from an arbitrarily time-varying electric field in two dimensions is studied using a group-theoretic approach. We show that this Hamiltonian can be encompassed by two, commuting SU(2) algebras, and that the two-dimensional problem can therefore be reduced to two one-dimensional problems. We compare the group structure for the two-dimensional problem with that previously derived for the one-dimensional problem, and verify that the Schwinger result is obtained under the appropriate conditions.
Higher order mixed moment approximations for the Fokker-Planck equation in one space dimension
Florian Schneider; Graham Alldredge; Martin Frank; Axel Klar
2014-05-21T23:59:59.000Z
We study mixed-moment models (full zeroth moment, half higher moments) for a Fokker-Planck equation in one space dimension. Mixed-moment minimum-entropy models are known to overcome the zero net-flux problem of full-moment minimum entropy Mn models. Realizability theory for these mixed moments of arbitrary order is derived, as well as a new closure, which we refer to as Kershaw closures. They provide non-negative distribution functions combined with an analytical closure. Numerical tests are performed with standard first-order finite volume schemes and compared with a finite-difference Fokker-Planck scheme.