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Note: This page contains sample records for the topic "distributed dynamic state" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Distribution System Modeling Based on Dynamic State Estimation.  

E-Print Network (OSTI)

??Distribution automation, demand response and advanced metering infrastructure (AMI) are three important elements of modern smart distribution grid. To achieve it, the real-time state estimate… (more)

Huang, Shih-Che

2013-01-01T23:59:59.000Z

2

The economics of US greenhouse gas emissions reduction policy : assessing distributional effects across households and the 50 United States using a recursive dynamic computable general equilibrium (CGE) model  

E-Print Network (OSTI)

The political economy of US climate policy has revolved around state- and district- level distributional economics, and to a lesser extent household-level distribution questions. Many politicians and analysts have suggested ...

Look, Wesley Allen

2013-01-01T23:59:59.000Z

3

Dynamic Links and Distributed Computing - CECM  

E-Print Network (OSTI)

Dynamic Links and Distributed Computing ... Next: Advanced Collaboration via Up: InternetExecutable Content, Previous: The Third-Generation Internet ...

4

Dynamics of spectral algorithms for distributed routing  

E-Print Network (OSTI)

In the past few decades distributed systems have evolved from man-made machines to organically changing social, economic and protein networks. This transition has been overwhelming in many ways at once. Dynamic, heterogeneous, ...

Maymounkov, Petar (Petar Borissov)

2012-01-01T23:59:59.000Z

5

Algorithms for dynamic multicast key distribution  

Science Conference Proceedings (OSTI)

We study the problem of multicast key distribution for group security. Secure group communication systems typically rely on a group key, which is a secret shared among the members of the group. This key is used to provide privacy by encrypting all group ... Keywords: Dynamic key distribution, experimental algorithms, multicast

Justin Goshi; Richard E. Ladner

2007-02-01T23:59:59.000Z

6

Practical Decoy State for Quantum Key Distribution  

E-Print Network (OSTI)

Decoy states have recently been proposed as a useful method for substantially improving the performance of quantum key distribution. Here, we present a general theory of the decoy state protocol based on only two decoy states and one signal state. We perform optimization on the choice of intensities of the two decoy states and the signal state. Our result shows that a decoy state protocol with only two types of decoy states--the vacuum and a weak decoy state--asymptotically approaches the theoretical limit of the most general type of decoy state protocols (with an infinite number of decoy states). We also present a one-decoy-state protocol. Moreover, we provide estimations on the effects of statistical fluctuations and suggest that, even for long distance (larger than 100km) QKD, our two-decoy-state protocol can be implemented with only a few hours of experimental data. In conclusion, decoy state quantum key distribution is highly practical.

X. Ma; B. Qi; Y. Zhao; H. -K. Lo

2005-03-01T23:59:59.000Z

7

Limits for entanglement distribution with separable states  

E-Print Network (OSTI)

Entanglement distribution with separable states has recently attracted considerable attention. Recent results suggest that quantum discord - a measure for quantum correlations beyond entanglement - is responsible for this counterintuitive phenomenon. In this work we study this question from a different perspective, and find minimal requirements for a separable state to be useful for entanglement distribution. Surprisingly, we find that the presence of quantum discord is not sufficient to ensure entanglement distribution: there exist states with nonzero quantum discord which nevertheless cannot be used for entanglement distribution. As a result, we show that entanglement distribution is not possible with rank two separable states. Our work sheds new light on the task of entanglement distribution with separable states, and reveals a new classification of quantum states with respect to their usefulness for this task.

Alexander Streltsov; Hermann Kampermann; Dagmar Bruß

2013-09-04T23:59:59.000Z

8

Distributed Shared State with History Maintenance  

E-Print Network (OSTI)

Shared mutable state is challenging to maintain in a distributed environment. We develop a technique, based on the Operational Transform, that guides independent agents into producing consistent states through inconsistent ...

Panchekha, Pavel

2013-10-08T23:59:59.000Z

9

Purity distribution for bipartite random pure states  

E-Print Network (OSTI)

Analytic expressions for the probability density distribution of the linear entropy and the purity are derived for bipartite pure random quantum states. The explicit distributions for a state belonging to a product of Hilbert spaces of dimensions p and q are given for p=3 and any q>=3, as well as for p=q=4.

O. Giraud

2007-10-10T23:59:59.000Z

10

DISTRIBUTED SENSOR FUSION USING DYNAMIC CONSENSUS  

E-Print Network (OSTI)

DISTRIBUTED SENSOR FUSION USING DYNAMIC CONSENSUS Demetri P. Spanos Richard M. Murray California in the underlying network topology and performance, making it an interesting candidate for sensor fusion, Decentralized systems, Graph theoretic models, Sensor Fusion 1. INTRODUCTION Sensor networks are a prominent

Murray, Richard M.

11

Enzymatic target identification with dynamic states  

Science Conference Proceedings (OSTI)

As a metabolic network reaches from a state to a steady state, a subset of its fluxes gradually change. The sequence of intermediate states, called the dynamic state, shows the pattern that the underlying network follows to reach the steady state ...

Bin Song; Sanjay Ranka; Tamer Kahveci

2010-08-01T23:59:59.000Z

12

Dynamic Voltage Regulation Using Distributed Energy Resources  

Science Conference Proceedings (OSTI)

Many distributed energy resources (DE) are near load centres and equipped with power electronics converters to interface with the grid, therefore it is feasible for DE to provide ancillary services such as voltage regulation, nonactive power compensation, and power factor correction. A synchronous condenser and a microturbine with an inverter interface are implemented in parallel in a distribution system to regulate the local voltage. Voltage control schemes of the inverter and the synchronous condenser are developed. The experimental results show that both the inverter and the synchronous condenser can regulate the local voltage instantaneously, while the dynamic response of the inverter is faster than the synchronous condenser; and that integrated voltage regulation (multiple DE perform voltage regulation) can increase the voltage regulation capability, increase the lifetime of the equipment, and reduce the capital and operation costs.

Xu, Yan [ORNL; Rizy, D Tom [ORNL; Li, Fangxing [ORNL; Kueck, John D [ORNL

2007-01-01T23:59:59.000Z

13

Nonorthogonal decoy-state Quantum Key Distribution  

E-Print Network (OSTI)

In practical quantum key distribution (QKD), weak coherent states as the photon sources have a limit in secure key rate and transmission distance because of the existence of multiphoton pulses and heavy loss in transmission line. Decoy states method and nonorthogonal encoding protocol are two important weapons to combat these effects. Here, we combine these two methods and propose a efficient method that can substantially improve the performance of QKD. We find a 79 km increase in transmission distance over the prior record using decoy states method.

Li, J B; Li, Jing-Bo; Fang, Xi-Ming

2005-01-01T23:59:59.000Z

14

EIA - Distribution of U.S. Coal by Origin State  

Annual Energy Outlook 2012 (EIA)

Origin State Glossary Home > Coal> Distribution of U.S. Coal by Origin State Distribution of U.S. Coal by Origin State Release Date: January 2006 Next Release Date: 2006...

15

Quantified Differential Dynamic Logic for Distributed Hybrid Systems  

E-Print Network (OSTI)

We address a fundamental mismatch between the combinations of dynamics that occur in complex physical systems and the limited kinds of dynamics supported in analysis. Modern applications combine communication, computation, and control. They may even form dynamic networks, where neither structure nor dimension stay the same while the system follows mixed discrete and continuous dynamics. We provide the logical foundations for closing this analytic gap. We develop a system model for distributed hybrid systems that combines quantified differential equations with quantified assignments and dynamic dimensionality-changes. We introduce a dynamic logic for verifying distributed hybrid systems and present a proof calculus for it. We prove that this calculus is a sound and complete axiomatization of the behavior of distributed hybrid systems relative to quantified differential equations. In our calculus we have proven collision freedom in distributed car control even when new cars may appear dynamically on the road.

André Platzer

2010-01-01T23:59:59.000Z

16

Distributed Robust Power System State Estimation  

E-Print Network (OSTI)

Deregulation of energy markets, penetration of renewables, advanced metering capabilities, and the urge for situational awareness, all call for system-wide power system state estimation (PSSE). Implementing a centralized estimator though is practically infeasible due to the complexity scale of an interconnection, the communication bottleneck in real-time monitoring, regional disclosure policies, and reliability issues. In this context, distributed PSSE methods are treated here under a unified and systematic framework. A novel algorithm is developed based on the alternating direction method of multipliers. It leverages existing PSSE solvers, respects privacy policies, exhibits low communication load, and its convergence to the centralized estimates is guaranteed even in the absence of local observability. Beyond the conventional least-squares based PSSE, the decentralized framework accommodates a robust state estimator. By exploiting interesting links to the compressive sampling advances, the latter jointly es...

Kekatos, Vassilis

2012-01-01T23:59:59.000Z

17

Dynamic Distributed Resource Allocation: A Distributed Constraint Satisfaction Approach  

Science Conference Proceedings (OSTI)

In distributed resource allocation a set of agents must assign their resources to a set of tasks. This problem arises in many real-world domains such as distributed sensor networks, disaster rescue, hospital scheduling and others. Despite the variety ...

Pragnesh Jay Modi; Hyuckchul Jung; Milind Tambe; Wei-Min Shen; Shriniwas Kulkarni

2001-08-01T23:59:59.000Z

18

A Characterization of Distribution Techniques for Dynamic Adaptive Grid Hierarchies  

E-Print Network (OSTI)

A Characterization of Distribution Techniques for Dynamic Adaptive Grid Hierarchies Samip Bhavsar for distributed adaptive grid hierarchies that underlie parallel adaptive mesh-refinement (AMR) techniques is the development of a policy driven tool for automated configuration and run-time management of distributed

Parashar, Manish

19

A Representation of Variable Root Distribution in Dynamic Vegetation Models  

Science Conference Proceedings (OSTI)

Root distribution is treated as a static component in most current dynamic vegetation models (DVMs). While changes in leaf and stem biomass are reflected in leaf area index (LAI) and vegetation height via specific leaf area (SLA) and allometric ...

Vivek K. Arora; George J. Boer

2003-06-01T23:59:59.000Z

20

Dynamics and length distribution of microtubules under force and confinement  

E-Print Network (OSTI)

We investigate the microtubule polymerization dynamics with catastrophe and rescue events for three different confinement scenarios, which mimic typical cellular environments: (i) The microtubule is confined by rigid and fixed walls, (ii) it grows under constant force, and (iii) it grows against an elastic obstacle with a linearly increasing force. We use realistic catastrophe models and analyze the microtubule dynamics, the resulting microtubule length distributions, and force generation by stochastic and mean field calculations; in addition, we perform stochastic simulations. We also investigate the force dynamics if growth parameters are perturbed in dilution experiments. Finally, we show the robustness of our results against changes of catastrophe models and load distribution factors.

Björn Zelinski; Nina Müller; Jan Kierfeld

2012-12-14T23:59:59.000Z

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


21

Distribution and Production of Oil and Gas Wells by State  

Gasoline and Diesel Fuel Update (EIA)

Distribution and Production of Oil and Gas Wells by State Distribution and Production of Oil and Gas Wells by State Distribution and Production of Oil and Gas Wells by State Release date: January 7, 2011 | Next Release Date: To be determined Distribution tables of oil and gas wells by production rate for all wells, including marginal wells, are now available for most states for the years 1995 to 2009. Graphs displaying historical behavior of well production rate are also available. To download data for all states and all years, including years prior to 1995, in an Excel spreadsheet XLS (4,000 KB). The quality and completeness of data is dependent on update lag times and the quality of individual state and commercial source databases. Undercounting of the number of wells occurs in states where data is sometimes not available at the well level but only at the lease level. States not listed below will be added later as data becomes available.

22

Electric Grid State Estimators for Distribution Systems with Microgrids  

E-Print Network (OSTI)

Electric Grid State Estimators for Distribution Systems with Microgrids Jing Huang, Vijay Gupta to identify the correct topology. Simulation studies with microgrid induced changes are presented, forecasting- aided state estimation, unscented Kalman filter, recursive Bayesian estimation, microgrid 1

Gupta, Vijay

23

Portable lamp with dynamically controlled lighting distribution  

DOE Patents (OSTI)

A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) arranged vertically with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down lighting is produced. The control system can also vary the light intensity from each CFL. The reflective septum insures that almost all the light produced by each lamp will be directed into the desired light distribution pattern which is selected and easily changed by the user. Planar compact fluorescent lamps, e.g. circular CFLs, particularly oriented horizontally, are preferable. CFLs provide energy efficiency. The lighting system may be designed for the home, hospitality, office or other environments.

Siminovitch, Michael J. (Pinole, CA); Page, Erik R. (Berkeley, CA)

2001-01-01T23:59:59.000Z

24

Dynamical and thermal descriptions in parton distribution functions  

Science Conference Proceedings (OSTI)

We suggest a duality between the standard (dynamical) and statistical distributions of partons in the nucleons. The temperature parameter entering into the statistical form for the quark distributions is estimated. It is found that this effective temperature is practically the same for the dependence on longitudinal and transverse momenta and, in turn, it is close to the freeze-out temperature in high-energy heavy-ion collisions.

Cleymans, J., E-mail: Jean.Cleymans@uct.ac.za [University of Cape Town, UCT-CERN Research Centre and Department of Physics (South Africa); Lykasov, G. I., E-mail: lykasov@jinr.ru; Sorin, A. S., E-mail: sorin@theor.jinr.ru; Teryaev, O. V., E-mail: teryaev@theor.jinr.ru [JINR (Russian Federation)

2012-06-15T23:59:59.000Z

25

Domestic Distribution of U.S. Coal by Destination State,  

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

2008 2008 Final May 2010 2008 Changes in Coal Distribution Table Format and Data Sources Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin State, destination State, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-exporting State. This Final 2008 Coal Distribution Report - Annual, supersedes the Preliminary 2008 Coal Distribution Report - Annual. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. In addition, the report contains actual annual data instead of imputed data for smaller electric generation plants that are excluded from the

26

Quantum Gibbs distribution from dynamical thermalization in classical nonlinear lattices  

E-Print Network (OSTI)

We study numerically time evolution in classical lattices with weak or moderate nonlinearity which leads to interactions between linear modes. Our results show that in a certain strength range a moderate nonlinearity generates a dynamical thermalization process which drives the system to the quantum Gibbs distribution of probabilities, or average oscillation amplitudes. The effective dynamical temperature of the lattice varies from large positive to large negative values depending on energy of initially excited modes. This quantum Gibbs distribution is drastically different from usually expected energy equipartition over linear modes corresponding to a regime of classical thermalization. Possible experimental observations of this dynamical thermalization are discussed for cold atoms in optical lattices, nonlinear photonic lattices and optical fiber arrays.

Leonardo Ermann; Dima L. Shepelyansky

2013-07-22T23:59:59.000Z

27

Momentum distribution, vibrational dynamics and the potential of mean force in ice  

E-Print Network (OSTI)

By analyzing the momentum distribution obtained from path integral and phonon calculations we find that the protons in hexagonal ice experience an anisotropic quasi-harmonic effective potential with three distinct principal frequencies that reflect molecular orientation. Due to the importance of anisotropy, anharmonic features of the environment cannot be extracted from existing experimental distributions that involve the spherical average. The full directional distribution is required, and we give a theoretical prediction for this quantity that could be verified in future experiments. Within the quasi-harmonic context, anharmonicity in the ground state dynamics of the proton is substantial and has quantal origin, a finding that impacts the interpretation of several spectroscopies.

Lin Lin; Joseph A. Morrone; Roberto Car; Michele Parrinello

2011-02-03T23:59:59.000Z

28

State reduction dynamics in a simplified QED model  

E-Print Network (OSTI)

A simplified model of quantum electrodynamics involving a charged two-state system interacting with an electromagnetic field mode is examined. By extending the Schrodinger equation to include stochastic and nonlinear terms the dynamical process of quantum state reduction can be represented. A specific choice of modified Schrodinger dynamics is shown to result in stable coherent field states. The two-state system undergoes an induced state reduction to a generalised current state due to its interaction with the field mode. Numerical results are presented demonstrating state reduction dynamics for an initial superposition of two current states. An induced reduction time-scale for the two-state system is derived and confirmed by the numerics.

D. J. Bedingham

2008-08-29T23:59:59.000Z

29

Microphysical and Dynamical Influences on Cirrus Cloud Optical Depth Distributions  

SciTech Connect

Cirrus cloud inhomogeneity occurs at scales greater than the cirrus radiative smoothing scale ({approx}100 m), but less than typical global climate model (GCM) resolutions ({approx}300 km). Therefore, calculating cirrus radiative impacts in GCMs requires an optical depth distribution parameterization. Radiative transfer calculations are sensitive to optical depth distribution assumptions (Fu et al. 2000; Carlin et al. 2002). Using raman lidar observations, we quantify cirrus timescales and optical depth distributions at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site in Lamont, OK (USA). We demonstrate the sensitivity of outgoing longwave radiation (OLR) calculations to assumed optical depth distributions and to the temporal resolution of optical depth measurements. Recent work has highlighted the importance of dynamics and nucleation for cirrus evolution (Haag and Karcher 2004; Karcher and Strom 2003). We need to understand the main controls on cirrus optical depth distributions to incorporate cirrus variability into model radiative transfer calculations. With an explicit ice microphysics parcel model, we aim to understand the influence of ice nucleation mechanism and imposed dynamics on cirrus optical depth distributions.

Kay, J.; Baker, M.; Hegg, D.

2005-03-18T23:59:59.000Z

30

The State of Distributed Energy Storage Technology and the Stem...  

NLE Websites -- All DOE Office Websites (Extended Search)

State of Distributed Energy Storage Technology and the Stem Energy System Speaker(s): Ben Kearns David Erhart Date: March 1, 2013 - 12:00pm Location: 90-3122 Seminar HostPoint of...

31

Econophysical Dynamics of Market-Based Electric Power Distribution Systems  

E-Print Network (OSTI)

As energy markets begin clearing at sub-hourly rates, their interaction with load control systems becomes a potentially important consideration. A simple model for the control of thermal systems using market-based power distribution strategies is proposed, with particular attention to the behavior and dynamics of electric building loads and distribution-level power markets. Observations of dynamic behavior of simple numerical model are compared to that of an aggregate continuous model. The analytic solution of the continuous model suggests important deficiencies in each. The continuous model provides very valuable insights into how one might design such load control system and design the power markets they interact with. We also highlight important shortcomings of the continuous model which we believe must be addressed using discrete models.

Nicolas Ho; David P. Chassin

2006-02-09T23:59:59.000Z

32

Domestic Coal Distribution 2009 Q2 by Origin State: Alabama  

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

Q2 by Origin State: Alabama Q2 by Origin State: Alabama (1000 Short Tons) 1 / 58 Domestic Coal Distribution 2009 Q2 by Origin State: Alabama (1000 Short Tons) Destination State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 875 12 33 - 920 Alabama River 855 - - - 855 Alabama Truck 155 84 230 - 469 Alabama Total 1,885 96 263 - 2,244 Florida Railroad - - 8 - 8 Georgia Railroad 118 - - - 118 Georgia Truck s - 15 - 15 Georgia Total 118 - 15 - 133 Indiana Railroad - 83 - - 83 Indiana Truck 17 34 - - 50 Indiana Total 17 116 - - 133 Kentucky Railroad 83 - - - 83 Pennsylvania Railroad 95 - - - 95 Origin State Total 2,197 212 285 - 2,695 Railroad 1,171 95 40 - 1,305 River 855 - - - 855 Truck 171 118 245 - 534 2 / 58 Domestic Coal Distribution 2009 Q2 by Origin State: Alaska

33

Dynamical pairing states in cold gases  

E-Print Network (OSTI)

In this thesis, we study dynamical pairing of fermions caused by the time-dependent interaction. Fermionic pairing develops on time scales short compared to the quasiparticle relaxation time where existing approaches to ...

Barankov, Roman A

2006-01-01T23:59:59.000Z

34

Knitting distributed cluster state ladders with spin chains  

E-Print Network (OSTI)

There has been much recent study on the application of spin chains to quantum state transfer and communication. Here we discuss the utilisation of spin chains (set up for perfect quantum state transfer) for the knitting of distributed cluster state structures, between spin qubits repeatedly injected and extracted at the ends of the chain. The cluster states emerge from the natural evolution of the system across different excitation number sectors. We discuss the decohering effects of errors in the injection and extraction process as well as the effects of fabrication and random errors.

Ronke, R; Spiller, T P

2011-01-01T23:59:59.000Z

35

Knitting distributed cluster state ladders with spin chains  

E-Print Network (OSTI)

There has been much recent study on the application of spin chains to quantum state transfer and communication. Here we discuss the utilisation of spin chains (set up for perfect quantum state transfer) for the knitting of distributed cluster state structures, between spin qubits repeatedly injected and extracted at the ends of the chain. The cluster states emerge from the natural evolution of the system across different excitation number sectors. We discuss the decohering effects of errors in the injection and extraction process as well as the effects of fabrication and random errors.

R. Ronke; I. D'Amico; T. P. Spiller

2011-04-22T23:59:59.000Z

36

Non-Markovian decoherence dynamics of entangled coherent states  

Science Conference Proceedings (OSTI)

We microscopically model the decoherence dynamics of entangled coherent states of twooptical modes under the influence of vacuum fluctuation. We derive an exact masterequation with time-dependent coefficients reflecting the memory effect of the environ-ment, ... Keywords: decoherence theory, exact master equation, non-Markovian dynamics

Jun-Hong An; Mang Feng; Wei-Min Zhang

2009-03-01T23:59:59.000Z

37

Distribution Reliability Indices Tracking Within the United States  

Science Conference Proceedings (OSTI)

Distribution reliability statistics, based on sustained interruptions, are the primary benchmark used by utilities and regulators to identify service quality and to measure performance. More than 20 states now require some level of annual reporting on the quality of service in terms of frequency and duration of sustained interruptions. Included in such reporting is documentation of specific distribution reliability indices such as the System Average Interruption Frequency Index (SAIFI) and System Average...

2003-05-12T23:59:59.000Z

38

Thin Shell Dynamics and Equations of State  

E-Print Network (OSTI)

A relation between stress-energy and motion is derived for accelerated Israel layers. The relation, for layers between two Schwarzschild manifolds, generalizes the equation of state for geodesic collapse. A set of linked layers is discussed.

J. P. Krisch; E. N. Glass

2008-08-04T23:59:59.000Z

39

Quantum key distribution with a reference quantum state  

SciTech Connect

A new quantum key distribution protocol stable at arbitrary losses in a quantum communication channel has been proposed. For the stability of the protocol, it is of fundamental importance that changes in states associated with losses in the communication channel (in the absence of the eavesdropper) are included in measurements.

Molotkov, S. N., E-mail: molotkov@issp.ac.ru [Russian Academy of Sciences, Institute of Solid State Physics (Russian Federation)

2011-11-15T23:59:59.000Z

40

Efficient decoy-state quantum key distribution with quantified security  

E-Print Network (OSTI)

We analyse the finite-size security of the efficient Bennett-Brassard 1984 protocol implemented with decoy states and apply the results to a gigahertz-clocked quantum key distribution system. Despite the enhanced security level, the obtained secure key rates are the highest reported so far at all fibre distances.

M. Lucamarini; K. A. Patel; J. F. Dynes; B. Fröhlich; A. W. Sharpe; A. R. Dixon; Z. L. Yuan; R. V. Penty; A. J. Shields

2013-10-01T23:59:59.000Z

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


41

Numerical analysis of decoy state quantum key distribution protocols  

SciTech Connect

Decoy state protocols are a useful tool for many quantum key distribution systems implemented with weak coherent pulses, allowing significantly better secret bit rates and longer maximum distances. In this paper we present a method to numerically find optimal three-level protocols, and we examine how the secret bit rate and the optimized parameters are dependent on various system properties, such as session length, transmission loss, and visibility. Additionally, we show how to modify the decoy state analysis to handle partially distinguishable decoy states as well as uncertainty in the prepared intensities.

Harrington, Jim W [Los Alamos National Laboratory; Rice, Patrick R [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

42

Domestic Coal Distribution 2009 Q1 by Origin State: Alabama  

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

Q1 by Origin State: Alabama Q1 by Origin State: Alabama (1000 Short Tons) 1 / 58 Domestic Coal Distribution 2009 Q1 by Origin State: Alabama (1000 Short Tons) Destination State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 950 4 84 - 1,038 Alabama River 1,110 - - - 1,110 Alabama Truck 37 170 249 - 456 Alabama Total 2,096 174 333 - 2,603 Florida Railroad - - 22 - 22 Georgia Railroad 45 - - - 45 Georgia Truck s - 20 - 21 Georgia Total 45 - 20 - 65 Hawaii Ocean Vessel s - - - s Indiana Railroad - 78 - - 78 Indiana Truck - 32 - - 32 Indiana Total - 110 - - 110 South Carolina Truck - - 2 - 2 Tennessee Truck - - 1 - 1 Texas Railroad 72 - - - 72 Origin State Total 2,213 284 378 - 2,875 Ocean Vessel s - - - s Railroad 1,066 82 106 - 1,255 River 1,110 - - - 1,110 Truck 37 202 272 - 511 2 / 58

43

Domestic Coal Distribution 2009 Q1 by Destination State: Alabama  

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

4 4 Domestic Coal Distribution 2009 Q1 by Destination State: Alabama (1000 Short Tons) 1 / 64 Domestic Coal Distribution 2009 Q1 by Destination State: Alabama (1000 Short Tons) Origin State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 950 4 84 - 1,038 Alabama River 1,110 - - - 1,110 Alabama Truck 37 170 249 - 456 Alabama Total 2,096 174 333 - 2,603 Arkansas Railroad - 6 - - 6 Colorado Railroad 279 - - - 279 Illinois Railroad 11 - - - 11 Illinois River 109 - - - 109 Illinois Total 119 - - - 119 Indiana River 197 - - - 197 Kentucky Railroad 442 - 28 - 471 Kentucky Truck - - 2 - 2 Kentucky Total 442 - 31 - 473 Kentucky (East) Railroad 357 - 28 - 385 Kentucky (East) Truck - - 2 - 2 Kentucky (East)

44

Domestic Coal Distribution 2009 Q2 by Destination State: Alabama  

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

61 61 Domestic Coal Distribution 2009 Q2 by Destination State: Alabama (1000 Short Tons) 1 / 61 Domestic Coal Distribution 2009 Q2 by Destination State: Alabama (1000 Short Tons) Origin State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 875 12 33 - 920 Alabama River 855 - - - 855 Alabama Truck 155 84 230 - 469 Alabama Total 1,885 96 263 - 2,244 Colorado Railroad 123 - - - 123 Illinois River 145 - - - 145 Indiana River 246 - - - 246 Indiana Truck 37 - - - 37 Indiana Total 283 - - - 283 Kentucky Railroad 426 - 30 - 457 Kentucky (East) Railroad 172 - 30 - 202 Kentucky (West) Railroad 255 - - - 255 Oklahoma Railroad - 6 - - 6 Utah Railroad 30 - - - 30 Virginia Railroad - 14 - - 14 West Virginia Railroad - 75 - -

45

Comparing of Normal Stress Distribution in Static and Dynamic Soil-Structure Interaction Analyses  

Science Conference Proceedings (OSTI)

It is important to consider the vertical component of earthquake loading and inertia force in soil-structure interaction analyses. In most circumstances, design engineers are primarily concerned about the analysis of behavior of foundations subjected to earthquake-induced forces transmitted from the bedrock. In this research, a single rigid foundation with designated geometrical parameters located on sandy-clay soil has been modeled in FLAC software with Finite Different Method and subjected to three different vertical components of earthquake records. In these cases, it is important to evaluate effect of footing on underlying soil and to consider normal stress in soil with and without footing. The distribution of normal stress under the footing in static and dynamic states has been studied and compared. This Comparison indicated that, increasing in normal stress under the footing caused by vertical component of ground excitations, has decreased dynamic vertical settlement in comparison with static state.

Kholdebarin, Alireza; Massumi, Ali [Graduate School of Engineering, Tarbiat Moallem University of Tehran (Kharazmi), Tehran (Iran, Islamic Republic of); Davoodi, Mohammad [Dept. of Geotechnical Earthquake Engineering, International Institute of Earthquake Engineering and Seismology, IIEES, Tehran (Iran, Islamic Republic of); Tabatabaiefar, Hamid Reza

2008-07-08T23:59:59.000Z

46

Dynamic State Estimation Utilizing High Performance Computing Methods  

SciTech Connect

The state estimation tools which are currently deployed in power system control rooms are based on a quasi-steady-state assumption. As a result, the suite of operational tools that rely on state estimation results as inputs do not have dynamic information available and their accuracy is compromised. This paper presents an overview of the Kalman Filtering process and then focuses on the implementation of the predication component on multiple processors.

Schneider, Kevin P.; Huang, Zhenyu; Yang, Bo; Hauer, Matthew L.; Nieplocha, Jaroslaw

2009-03-18T23:59:59.000Z

47

Distribution of independent fission-product yields to isomeric states  

SciTech Connect

A simple one-parameter model is presented for calculating the distribution of independent yield strength between ground and isomeric states of primary fission products formed by neutron-induced fission of actinide nuclei. Yield branching ratios are calculated as a function of neutron energy (thermal, fast, and 14-MeV) for 144 nuclides having isomeric states with T/sub 1/2/ greater than or equal to 0.1 s. The results are proposed for use in the ENDF/B-V yield files.

Madland, D.G.; England, T.R.

1976-11-01T23:59:59.000Z

48

Universal dynamical decoupling of multiqubit states from environment  

Science Conference Proceedings (OSTI)

We study the dynamical decoupling of multiqubit states from environment. For a system of m qubits, the nested Uhrig dynamical decoupling (NUDD) sequence can efficiently suppress generic decoherence induced by the system-environment interaction to order N using (N+1){sup 2m} pulses. We prove that the NUDD sequence is universal, i.e., it can restore the coherence of an m-qubit quantum system independent of the details of the system-environment interaction. We also construct a general mapping between dynamical decoupling problems and discrete quantum walks in certain functional spaces.

Jiang, Liang [Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125 (United States); Imambekov, Adilet [Department of Physics and Astronomy, Rice University, Houston, Texas 77005,USA (United States)

2011-12-15T23:59:59.000Z

49

Modeling space plasma dynamics with anisotropic Kappa distributions  

E-Print Network (OSTI)

Space plasmas are collisionpoor and kinetic effects prevail leading to wave fluctuations, which transfer the energy to small scales: wave-particle interactions replace collisions and enhance dispersive effects heating particles and producing suprathermal populations observed at any heliospheric distance in the solar wind. At large distances collisions are not efficient, and the selfgenerated instabilities constrain the solar wind anisotropy including the thermal core and the suprathermal components. The generalized power-laws of Kappa-type are the best fitting model for the observed distributions of particles, and a convenient mathematical tool for modeling their dynamics. But the anisotropic Kappa models are not correlated with the observations leading, in general, to inconsistent effects. This review work aims to reconcile some of the existing Kappa models with the observations.

Lazar, M; Poedts, S; Schlickeiser, R

2012-01-01T23:59:59.000Z

50

Identification of Critical Parameters for Distribution Networks with DFIG and Dynamic loads  

E-Print Network (OSTI)

Identification of Critical Parameters for Distribution Networks with DFIG and Dynamic loads M. S of distribution network with Doubly Fed Induction Generator (DFIG) is presented in a different way where an analysis to investigate the critical parameters for distribution systems with dynamic loads where DFIGs

Pota, Himanshu Roy

51

Robust Distributed Routing in Dynamical Networks - Part I: Locally Responsive Policies and Weak Resilience  

E-Print Network (OSTI)

Robustness of distributed routing policies is studied for dynamical networks, with respect to adversarial disturbances that reduce the link flow capacities. A dynamical network is modeled as a system of ordinary differential ...

Como, Giacomo

52

Battery-State Dependent Power Control as a Dynamic Game  

E-Print Network (OSTI)

1 Battery-State Dependent Power Control as a Dynamic Game Ishai Menache and Eitan Altman Faculty number of mobile users with limited batteries. Whenever the battery drains out, the user pays a fixed price to recharge the battery. Users, assumed to have always traffic to send, control their transmission

53

Domestic Distribution of U.S. Coal by Origin State, Consumer...  

Gasoline and Diesel Fuel Update (EIA)

Origin State, Consumer, Destination and Method of Transportation Home > Coal > Annual Coal Distribution > Coal Origin Map > Domestic Distribution by Origin: Alaska Data For: 2002...

54

Multi-State Load Models for Distribution System Analysis  

Science Conference Proceedings (OSTI)

Recent work in the field of distribution system analysis has shown that the traditional method of peak load analysis is not adequate for the analysis of emerging distribution system technologies. Voltage optimization, demand response, electric vehicle charging, and energy storage are examples of technologies with characteristics having daily, seasonal, and/or annual variations. In addition to the seasonal variations, emerging technologies such as demand response and plug in electric vehicle charging have the potential to send control signals to the end use loads which will affect how they consume energy. In order to support time-series analysis over different time frames and to incorporate potential control signal inputs it is necessary to develop detailed end use load models which accurately represent the load under various conditions, and not just during the peak load period. This paper will build on previous work on detail end use load modeling in order to outline the method of general multi-state load models for distribution system analysis.

Schneider, Kevin P.; Fuller, Jason C.; Chassin, David P.

2011-11-01T23:59:59.000Z

55

Quantum key distribution using gaussian-modulated coherent states  

E-Print Network (OSTI)

Quantum continuous variables are being explored as an alternative means to implement quantum key distribution, which is usually based on single photon counting. The former approach is potentially advantageous because it should enable higher key distribution rates. Here we propose and experimentally demonstrate a quantum key distribution protocol based on the transmission of gaussian-modulated coherent states (consisting of laser pulses containing a few hundred photons) and shot-noise-limited homodyne detection; squeezed or entangled beams are not required. Complete secret key extraction is achieved using a reverse reconciliation technique followed by privacy amplification. The reverse reconciliation technique is in principle secure for any value of the line transmission, against gaussian individual attacks based on entanglement and quantum memories. Our table-top experiment yields a net key transmission rate of about 1.7 megabits per second for a loss-free line, and 75 kilobits per second for a line with losses of 3.1 dB. We anticipate that the scheme should remain effective for lines with higher losses, particularly because the present limitations are essentially technical, so that significant margin for improvement is available on both the hardware and software.

F. Grosshans; G. Van Assche; J. Wenger; R. Brouri; N. J. Cerf; Ph. Grangier

2003-12-02T23:59:59.000Z

56

Dynamics of topological light states in spiraling structures  

E-Print Network (OSTI)

We expose a mechanism for the dynamical generation and control of light states with diverse topologies in spiraling guiding structures. Specifically, we show that spiraling shallow refractive index landscapes induce coupling and periodic energy exchange between states with different topological charges. Such a resonant effect enables excitation of optical vortices by vortex-free inputs and allows the output topological charge of the beam to be controlled. The presence of nonlinearity results in a strong asymmetrization of the resonant curves and a shift of the resonant frequencies. Resonant vortex dynamic generation, including revivals, is shown to be possible not only in waveguides mediated by total internal reflection but also in Bragg-guiding hollow-core geometries.

Kartashov, Yaroslav V; Torner, Lluis

2013-01-01T23:59:59.000Z

57

Mitigation of different type voltage sags in low voltage distribution systems using dynamic voltage restorer  

Science Conference Proceedings (OSTI)

The main problems of the voltage sag in low voltage distribution systems due to sensitive loads. Voltage sags can caused malfunction in the distribution system. In order to protect voltage sags in the network a device which called Dynamic Voltage Restorer ... Keywords: custom device, dynamic voltage restorer (DVR), low voltage, power injected, voltage sag

Rosli Omar

2010-03-01T23:59:59.000Z

58

Ad Hoc Distributed Dynamic Data-Driven Simulations of Surface Transportation Systems  

Science Conference Proceedings (OSTI)

An ad hoc distributed dynamic data-driven simulation is a collection of autonomous online simulations brought together to model an operational system. They offer the potential of increased accuracy, responsiveness, and robustness compared to centralized ... Keywords: ad hoc distributed simulation, dynamic data-driven application system, microscopic simulation model, online simulation

Michael Hunter; Hoe Kyoung Kim; Wonho Suh; Richard Fujimoto; Jason Sirichoke; Mahesh Palekar

2009-04-01T23:59:59.000Z

59

Initial-state dependence of the quench dynamics in integrable quantum systems  

Science Conference Proceedings (OSTI)

We identify and study classes of initial states in integrable quantum systems that, after the relaxation dynamics following a sudden quench, lead to near-thermal expectation values of few-body observables. In the systems considered here, those states are found to be insulating ground states of lattice hard-core boson Hamiltonians. We show that, as a suitable parameter in the initial Hamiltonian is changed, those states become closer to Fock states (products of single site states) as the outcome of the relaxation dynamics becomes closer to the thermal prediction. At the same time, the energy density approaches a Gaussian. Furthermore, the entropy associated with the generalized canonical and generalized grand-canonical ensembles, introduced to describe observables in integrable systems after relaxation, approaches that of the conventional canonical and grand-canonical ensembles. We argue that those classes of initial states are special because a control parameter allows one to tune the distribution of conserved quantities to approach the one in thermal equilibrium. This helps in understanding the approach of all the quantities studied to their thermal expectation values. However, a finite-size scaling analysis shows that this behavior should not be confused with thermalization as understood for nonintegrable systems.

Rigol, Marcos [Department of Physics,Georgetown University, Washington, DC 20057 (United States); Fitzpatrick, Mattias [Department of Physics,Georgetown University, Washington, DC 20057 (United States); Department of Physics, Middlebury College, Middlebury, Vermont 05753 (United States)

2011-09-15T23:59:59.000Z

60

Charge-state distributions of metallic electron cyclotron resonance plasmas  

Science Conference Proceedings (OSTI)

The authors have developed metallic ion beams in the energy range of a few keV to a few MeV using a low-energy ion-beam facility (LEIBF) consisting of a 10 GHz all-permanent-magnet electron cyclotron resonance (ECR) ion source placed on a high-voltage (200 kV) platform. The metallic vapors were achieved by plasma sputtering, using a micro-oven and volatile compounds to produce multiply charged ECR plasma. The ions were then extracted from the plasma and their energy and momentum were analyzed using a high-resolution dipole magnet. Charge-state distributions (CSDs) of three metallic ECR plasmas (Cu, Ni, and Sn) produced by different techniques are presented to help in using low-energy metallic ions for implantation. We present the CSD studies of metallic ECR plasma and highlight the physics of the process involved.

Kumar, P.; Rodrigues, G.; Lakshmy, P. S.; Kanjilal, D.; Kumar, R. [Inter University Accelerator Centre, New Delhi 110067 (India); Department of Physics, Ch. Charan Singh University, Meerut 250004 (U.P.) (India)

2008-01-15T23:59:59.000Z

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


61

Domestic Distribution of U.S. Coal by Origin State,  

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

8 Final May 2010 2008 Changes in Coal Distribution Table Format and Data Sources Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal...

62

Distribution Fast Simulation and Modeling Technical Update: First Sensor Location Strategy for the Enhancement of Distribution State Estimation  

Science Conference Proceedings (OSTI)

Distribution automation offers new abilities to improve the performance of distribution operation and control, but improved flexibility and controllability of the distribution grid is only possible if control center tools and engineers have a more accurate representation of the grid in real-time than what is provided by existing supervisory control and data acquisition (SCADA) systems. A Distribution State Estimator (DSE) is a non linear optimization that uses a limited number of measurements combined wi...

2008-03-31T23:59:59.000Z

63

Compiler Optimization for Distributed Dynamic Data Flow Programs...  

NLE Websites -- All DOE Office Websites (Extended Search)

large-scale parallel applications, particularly scientific simulations and analysis pipelines running on large, distributed memory clusters. In this paper, we describe compiler...

64

Dynamic polarizabilities for the low lying states of Ca+  

E-Print Network (OSTI)

The dynamic polarizabilities of the 4s, 3d and 4p states of Ca$^+$, are calculated using a relativistic structure model. The wavelengths at which the Stark shifts between different pairs of transitions are zero are computed. Experimental determination of the magic wavelengths can be used to estimate the ratio of the $f_{3d_{J}\\to 4p_{J'}}$ and $f_{4s_{1/2} \\to 4p_{J'}}$ oscillator strengths. This could prove valuable in developing better atomic structure models and in particular lead to improved values of the polarizabilities needed in the evaluation of the blackbody radiation shift of the Ca$^+$ ion.

Tang, Yong-Bo; Shi, Ting-Yun; Mitroy, J

2013-01-01T23:59:59.000Z

65

Role of the Initial State in the Nonequilibrium Quantum Dynamics of Many-Body Systems  

E-Print Network (OSTI)

We study isolated many-body quantum systems after a quench and show that their dynamics depends on the interplay between the initial state and the Hamiltonian dictating the evolution. The systems are in the nonperturbative regime. The relaxation process is controlled by the width of the energy distribution of the initial state and may be very similar for both chaotic and integrable Hamiltonians. We derive an analytical expression for the fidelity decay, which displays excellent agreement with our numerical results. This decay is Gaussian and may persist until saturation. Analytical expressions that describe very well the initial evolution of the Shannon entropy and of few-body observables are also provided. The analyses are developed for deterministic one-dimensional systems and initial states of interest to current experiments with cold atoms in optical lattices.

E. J. Torres-Herrera; Lea F. Santos

2013-10-18T23:59:59.000Z

66

Feasibility of 300 km Quantum Key Distribution with Entangled States  

E-Print Network (OSTI)

A significant limitation of practical quantum key distribution (QKD) setups is currently their limited operational range. It has recently been emphasized (X. Ma, C.-H. F. Fung, and H.-K. Lo., Phys. Rev. A, 76:012307, 2007) that entanglement-based QKD systems can tolerate higher channel losses than systems based on weak coherent laser pulses (WCP), in particular when the source is located symmetrically between the two communicating parties, Alice and Bob. In the work presented here, we experimentally study this important advantage by implementing different entanglement-based QKD setups on a 144~km free-space link between the two Canary Islands of La Palma and Tenerife. We established three different configurations where the entangled photon source was placed at Alice's location, asymmetrically between Alice and Bob and symmetrically in the middle between Alice and Bob, respectively. The resulting quantum channel attenuations of 35~dB, 58~dB and 71~dB, respectively, significantly exceed the limit for WCP systems. This confirms that QKD over distances of 300~km and even more is feasible with entangled state sources placed in the middle between Alice and Bob.

Thomas Scheidl; Rupert Ursin; Alessandro Fedrizzi; Sven Ramelow; Xiao-Song Ma; Thomas Herbst; Robert Prevedel; Lothar Ratschbacher; Johannes Kofler; Thomas Jennewein; Anton Zeilinger

2010-07-27T23:59:59.000Z

67

Corresponding states for mesostructure and dynamics of supercooled water  

E-Print Network (OSTI)

Water famously expands upon freezing, foreshadowed by a negative coefficient of expansion of the liquid at temperatures close to its freezing temperature. These behaviors, and many others, reflect the energetic preference for local tetrahedral arrangements of water molecules and entropic effects that oppose it. Here, we provide theoretical analysis of mesoscopic implications of this competition, both equilibrium and non-equilibrium, including mediation by interfaces. With general scaling arguments bolstered by simulation results, and with reduced units that elucidate corresponding states, we derive a phase diagram for bulk and confined water and water-like materials. For water itself, the corresponding states cover the temperature range of 150 K to 300 K and the pressure range of 1 bar to 2 kbar. In this regime, there are two reversible condensed phases - ice and liquid. Out of equilibrium, there is irreversible polyamorphism, i.e., more than one glass phase, reflecting dynamical arrest of coarsening ice. Temperature-time plots are derived to characterize time scales of the different phases and explain contrasting dynamical behaviors of different water-like systems.

David T. Limmer; David Chandler

2013-05-07T23:59:59.000Z

68

Dynamic task scheduling for linear algebra algorithms on distributed-memory multicore systems  

Science Conference Proceedings (OSTI)

This paper presents a dynamic task scheduling approach to executing dense linear algebra algorithms on multicore systems (either shared-memory or distributed-memory). We use a task-based library to replace the existing linear algebra subroutines such ...

Fengguang Song; Asim YarKhan; Jack Dongarra

2009-11-01T23:59:59.000Z

69

Dynamic load management for MMOGs in distributed environments  

Science Conference Proceedings (OSTI)

To support thousands of concurrent players in virtual worlds simulated by contemporary Massively Multiplayer Online Games, most implementations employ static game world partitioning for distributing the load among multiple game server instances. Further, ... Keywords: load balancing, mmogs

Herbert Jordan; Radu Prodan; Vlad Nae; Thomas Fahringer

2010-05-01T23:59:59.000Z

70

Molecular dynamics on distributed-memory MIMD computers with load balancing  

Science Conference Proceedings (OSTI)

We report two aspects of a computational molecular dynamics study of large-scale problems on a distributed-memory MIMD parallel computer: (1) efficiency and scalability results on Intel Paragon parallel computers with up to 512 nodes and (2) a new method for dynamic load balancing.

Deng, Y.; McCoy, R.A. [State Univ. of New York, Stony Brook, NY (United States). Research Foundation; Marr, R.B.; Peierls, R.F. [Brookhaven National Lab., Upton, NY (United States); Yasar, O. [Brookhaven National Lab., Upton, NY (United States)

1994-12-31T23:59:59.000Z

71

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

of New York State electricity and natural gas rates. DER_CAMElectricity Tariff Structure on Distributed Generation Adoption in New York State 4.4.1.2 RateElectricity Tariff Structure on Distributed Generation Adoption in New York State Standby rate

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

72

OPEC as a non-state actor: formation and dynamics  

SciTech Connect

Factors that have promoted the formation of OPEC and the dynamics of its confrontation with the multinational oil companies (MNOCs) are analyzed. The rise of OPEC is examined from the perspective of the growing literature on non-state actors within the international system. The central hypothesis is that OPEC emerged as a collective-bargaining instrument, but has become a non-state actor that impacts upon as well as serves the policies of its member-states. As a corollary it is assumed that the politics of oil in the 1960s can best be understood as the clash of two non-state actors - OPEC and MNOCs, both involved in changing relationships with their home governments. This study utilizes the non-state actor approach to explain the growing importance of OPEC within the international political and economic system. The study concludes that although OPEC did make structural changes in the international oil industry previously concentrated in the hands of the MNOCs, it did not press to the point that the international economic system was threatened. Moreover, OPEC proved to be a responsible international actor in a number of specific respects. It attempted to provide financial aid to those Third World countries adversely affected by the energy crisis of 1973-1974. OPEC members recycled their financial wealth in the international monetary system. On occasion it restrained some members from pushing for higher prices. This benefitting the Western industrial oil-consuming nations. As a result OPEC served as a stabilizing factor in the international oil industry.

Dredi, I.B.

1982-01-01T23:59:59.000Z

73

Development of microbial-enzyme-mediated decomposition model parameters through steady-state and dynamic analyses  

Science Conference Proceedings (OSTI)

We developed a Microbial-ENzyme-mediated Decomposition (MEND) model, based on the Michaelis-Menten kinetics, that describes the dynamics of physically defined pools of soil organic matter (SOC). These include particulate, mineral-associated, dissolved organic matter (POC, MOC, and DOC, respectively), microbial biomass, and associated exoenzymes. The ranges and/or distributions of parameters were determined by both analytical steady-state and dynamic analyses with SOC data from the literature. We used an improved multi-objective parameter sensitivity analysis (MOPSA) to identify the most important parameters for the full model: maintenance of microbial biomass, turnover and synthesis of enzymes, and carbon use efficiency (CUE). The model predicted an increase of 2 C (baseline temperature =12 C) caused the pools of POC-Cellulose, MOC, and total SOC to increase with dynamic CUE and decrease with constant CUE, as indicated by the 50% confidence intervals. Regardless of dynamic or constant CUE, the pool sizes of POC, MOC, and total SOC varied from 8% to 8% under +2 C. The scenario analysis using a single parameter set indicates that higher temperature with dynamic CUE might result in greater net increases in both POC-Cellulose and MOC pools. Different dynamics of various SOC pools reflected the catalytic functions of specific enzymes targeting specific substrates and the interactions between microbes, enzymes, and SOC. With the feasible parameter values estimated in this study, models incorporating fundamental principles of microbial-enzyme dynamics can lead to simulation results qualitatively different from traditional models with fast/slow/passive pools.

Wang, Gangsheng [ORNL; Post, Wilfred M [ORNL; Mayes, Melanie [ORNL

2013-01-01T23:59:59.000Z

74

Methodology The electricity generation and distribution network in the Western United States is  

E-Print Network (OSTI)

Methodology The electricity generation and distribution network in the Western United States is comprised of power plants, electric utilities, electrical transformers, transmission and distribution infrastructure, etc. We conceptualize the system as a transportation network with resources (electricity

Hall, Sharon J.

75

Improving continuous-variable entanglement distribution by separable states  

E-Print Network (OSTI)

We investigate the physical mechanism behind the counterintuitive phenomenon, the distribution of continuous-variable entanglement between two distant modes by sending a third separable auxiliary mode between them. For this purpose, we propose a new more simple and more efficient protocol resulting in distributed entanglement with more than an order of the magnitude higher logarithmic negativity than in the previously proposed protocol. This new protocol shows that the distributed entanglement originates from the entanglement of one mode and the auxiliary mode used for distribution which is first destroyed by local correlated noises and restored subsequently by the interference of the auxiliary mode with the second distant separable correlated mode.

Ladislav Mišta, Jr.; Natalia Korolkova

2013-04-30T23:59:59.000Z

76

Protocol for dynamic ad-hoc networks using distributed spanning trees  

Science Conference Proceedings (OSTI)

A dynamic ad-hoc network consists of a collection of mobile hosts with frequently changing network topology. We propose a distributed algorithm that adapts to the topology by utilizing spanning trees in the regions where the topology is stable, ... Keywords: ad-hoc network, distributed algorithm, routing, simulation, spanning tree

Sridhar Radhakrishnan; Gopal Racherla; Chandra N. Sekharan; Nageswara S. V. Rao; S. G. Batsell

2003-11-01T23:59:59.000Z

77

Version-consistent dynamic reconfiguration of component-based distributed systems  

Science Conference Proceedings (OSTI)

There is an increasing demand for the runtime reconfiguration of distributed systems in response to changing environments and evolving requirements. Reconfiguration must be done in a safe and low-disruptive way. In this paper, we propose version consistency ... Keywords: component-based distributed system, dynamic reconfiguration, version-consistency

Xiaoxing Ma; Luciano Baresi; Carlo Ghezzi; Valerio Panzica La Manna; Jian Lu

2011-09-01T23:59:59.000Z

78

Fast analysis of molecular dynamics trajectories with graphics processing units-Radial distribution function histogramming  

Science Conference Proceedings (OSTI)

The calculation of radial distribution functions (RDFs) from molecular dynamics trajectory data is a common and computationally expensive analysis task. The rate limiting step in the calculation of the RDF is building a histogram of the distance between atom pairs in each trajectory frame. Here we present an implementation of this histogramming scheme for multiple graphics processing units (GPUs). The algorithm features a tiling scheme to maximize the reuse of data at the fastest levels of the GPU's memory hierarchy and dynamic load balancing to allow high performance on heterogeneous configurations of GPUs. Several versions of the RDF algorithm are presented, utilizing the specific hardware features found on different generations of GPUs. We take advantage of larger shared memory and atomic memory operations available on state-of-the-art GPUs to accelerate the code significantly. The use of atomic memory operations allows the fast, limited-capacity on-chip memory to be used much more efficiently, resulting in a fivefold increase in performance compared to the version of the algorithm without atomic operations. The ultimate version of the algorithm running in parallel on four NVIDIA GeForce GTX 480 (Fermi) GPUs was found to be 92 times faster than a multithreaded implementation running on an Intel Xeon 5550 CPU. On this multi-GPU hardware, the RDF between two selections of 1,000,000 atoms each can be calculated in 26.9 s per frame. The multi-GPU RDF algorithms described here are implemented in VMD, a widely used and freely available software package for molecular dynamics visualization and analysis.

Levine, Benjamin G., E-mail: ben.levine@temple.ed [Institute for Computational Molecular Science and Department of Chemistry, Temple University, Philadelphia, PA (United States); Stone, John E., E-mail: johns@ks.uiuc.ed [Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL (United States); Kohlmeyer, Axel, E-mail: akohlmey@temple.ed [Institute for Computational Molecular Science and Department of Chemistry, Temple University, Philadelphia, PA (United States)

2011-05-01T23:59:59.000Z

79

Dynamics and Spatial Distribution of Global Nighttime Lights  

E-Print Network (OSTI)

Using open source data, we observe the fascinating dynamics of nighttime light. Following a global economic regime shift, the planetary center of light can be seen moving eastwards at a pace of about 60 km per year. Introducing spatial light Gini coefficients, we find a universal pattern of human settlements across different countries and see a global centralization of light. Observing 160 different countries we document the expansion of developing countries, the growth of new agglomerations, the regression in countries suffering from demographic decline and the success of light pollution abatement programs in western countries.

Pestalozzi, Nicola; Sornette, Didier

2013-01-01T23:59:59.000Z

80

Involutive Spacetime Distributions and p-Brane Dynamics  

E-Print Network (OSTI)

We propose a precise definition of multidimensional fluids generated by self-gravitating extended objects such as strings and membranes: a p-dimensional perfect fluid is a smooth involutive p-dimensional distribution on a spacetime, each integral manifold of which is a timelike, connected, immersed submanifold of dimension, p -- representing the history of a (p-1)-dimensional extended object. This geometric formulation of perfect fluids of higher dimensions naturally leads to the associated stress-energy tensor. Furthermore, the laws of temporal evolution and symmetries of such systems are derived, in general, from the Einstein field equations and the integrability conditions. We also present a matter model based on a 2-dimensional involutive distribution, and it is shown that the stress-energy tensor for self-gravitating strings gives rise to a non-trivial spherically symmetric spacetime with a naked singularity.

Manash Mukherjee

1997-07-14T23:59:59.000Z

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


81

Dynamic nuclear polarization in biomolecular solid state NMR : methods and applications in peptides and membrane proteins  

E-Print Network (OSTI)

Solid state NMR can probe structure and dynamics on length scales from the atomic to the supramolecular. However, low sensitivity limits its application in macromolecules. NMR sensitivity can be improved by dynamic nuclear ...

Bajaj, Vikram Singh

2007-01-01T23:59:59.000Z

82

U.S. Domestic and Foreign Coal Distribution by State of Origin  

Gasoline and Diesel Fuel Update (EIA)

Domestic and Foreign Coal Distribution by State of Origin Domestic and Foreign Coal Distribution by State of Origin ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ U.S. Energy Information Administration | Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Domestic and foreign distribution of U.S. coal by State of origin, 2010 (thousand short tons) Coal Exports Coal Origin State and Region Domestic Distribution By Coal Mines By Brokers & Traders* Total Exports Total Distribution Alabama 10,679.56 9,223.70 408.00 9,631.70 20,311.26 Alaska 920.68 1,080.60 88.05 1,168.65 2,089.33 Arizona 7,761.18 - - - 7,761.18 Arkansas 0.43 - - - 0.43 Colorado 21,831.81 748.98 1,446.25 2,195.23 24,027.04 Illinois 33,176.21 2,505.51

83

A feasibility study for experimentally determining dynamic force distribution in a lap joint.  

SciTech Connect

Developing constitutive models of the physics in mechanical joints is currently stymied by inability to measure forces and displacements within the joint. The current state of the art estimates whole joint stiffness and energy loss per cycle from external measured force input and one or two acceleration responses. To validate constitutive models beyond this state requires a measurement of the distributed forces and displacements at the joint interface. Unfortunately, introducing measurement devices at the interface completely disrupts the desired physics. A feasibility study is presented for a non-intrusive method of solving for the interface dynamic forces from an inverse problem using full field measured responses. The responses come from the viewable surface of a beam. The noise levels associated with digital image correlation and continuous scanning laser Doppler velocimetry are evaluated from typical beam experiments. Two inverse problems are simulated. One utilizes the extended Sum of Weighted Accelerations Technique (SWAT). The second is a new approach dubbed the method of truncated orthogonal forces. These methods are much more robust if the contact patch geometry is well identified. Various approaches to identifying the contact patch are investigated, including ion marker tracking, Prussian blue and ultrasonic measurements. A typical experiment is conceived for a beam which has a lap joint at one end with a single bolt connecting it to another identical beam. In a virtual test using the beam finite element analysis, it appears that the SWAT inverse method requires evaluation of too many coefficients to adequately identify the force distribution to be viable. However, the method of truncated orthogonal forces appears viable with current digital image correlation (and probably other) imaging techniques.

Mayes, Randall Lee

2013-11-01T23:59:59.000Z

84

Steady-state power flow modeling for a dynamic voltage restorer  

Science Conference Proceedings (OSTI)

This paper presents analysis, modeling and simulation of power distribution network performance incorporating with an installed dynamic voltage restorer (DVR). DVR is one of series compensators used in power distribution systems in order to maintain ... Keywords: Gauss-Seidel method, dynamic voltage restorer, modeling, power flow, simulation

T. Ratniyomchai; T. Kulworawanichpong

2006-03-01T23:59:59.000Z

85

A Simple Distributed Particle Swarm Optimization for Dynamic and Noisy Environments  

SciTech Connect

In this paper, we present a Simple Distributed Particle Swarm Optimization (SDPSO) algorithm that can be used to track the optimal solution in a dynamic and noisy environment. The classic PSO algorithm lacks the ability to track changing optimum in a dynamic environment. Several approaches have been investigated to enhance the PSO algorithm s ability in dynamic environments. However, in dealing with dynamic environments, these approaches have lost PSO s original strengths of decentralized control and ease of implementation. The SDPSO algorithm proposed in this paper maintains these classic PSO features as well as provides the optimum result tracking capability in dynamic environments. In this research, the DF1 multimodal dynamic environment generator proposed by Morrison and De Jong is used to evaluate the classic PSO, SDPSO and other two adaptive PSOs.

Cui, Xiaohui [ORNL; Potok, Thomas E [ORNL

2009-01-01T23:59:59.000Z

86

Assessment of Distributed Resources: A Case Study for Tri-State Generation and Transmission Association, Inc.  

Science Conference Proceedings (OSTI)

During the process of upgrading service for three distribution customers, Tri-State Generation and Transmission Association (Tri-State) evaluated various distributed generation (DIS-GEN) options. Candidate DIS-GEN systems competitive with other options could become the basis for customer upgrade solutions.

1997-12-05T23:59:59.000Z

87

Control of Combined Storage and Generation in Dynamic Distribution Systems  

E-Print Network (OSTI)

Battery energy storage units provide an added degree of freedom to a microgrid that allows time-shifting between the generation and use of energy. Microgrid energy storage elements are very similar to any other inverter-based source with the exception of bi-directional power flow capabilities. Having the ability to generate and accept power means that the demand and the supply can be disparate by as far as the power capabilities of the energy storage unit allow. This enables combined heat power systems to support a heat load demand independent of local electric power demand. Having an energy storage element on standby also allows for a certain amount of immediately available power to reduce the need for idling or lightly loaded rotating generators under the n-1 stability criterion. The relative speed of any inverter based source allows a sub-cycle change in power output to ensure that dynamic loads will be supplied regardless of the slow reaction of larger rotating sources that require seconds of response time to transients. Thirdly, they can act as a UPS system during grid faults, providing backup power for some time even for non-essential loads while the microgrid is islanded. Lastly, the energy storage element can provide an economic and/or logistical advantage by

Certs Microgrid; Robert Lasseter; Micah Erickson

2009-01-01T23:59:59.000Z

88

On-line hydraulic state prediction for water distribution systems  

E-Print Network (OSTI)

This paper describes and demonstrates a method for on?line hydraulic state prediction in urban water networks. The proposed method uses a Predictor?Corrector (PC) approach in which a statistical data?driven algorithm is ...

Whittle, Andrew

89

Spatial Distribution of Precipitation Seasonality in the United States  

Science Conference Proceedings (OSTI)

A detailed, long term portrait of the seasonality of precipitation over the United States is developed using a 90 year climate division record. Selected decadal maps of seasonality are also presented, and their variability over time considered. ...

Peter L. Finkelstein; Lawrence E. Truppi

1991-04-01T23:59:59.000Z

90

Microscopic approach of fission dynamics applied to fragment kinetic energy and mass distributions in 238U  

E-Print Network (OSTI)

The collective dynamics of low energy fission in 238U is described within a time-dependent formalism based on the Gaussian Overlap Approximation of the time-dependent Generator Coordinate Method. The intrinsic deformed configurations of the nucleus are determined from the self-consistent Hartree-Fock-Bogoliubov procedure employing the effective force D1S with constraints on the quadrupole and octupole moments. Fragment kinetic energy and mass distributions are calculated and compared with experimental evaluations. The effect of the collective dynamics along the fission paths and the influence of initial conditions on these distributions are analyzed and discussed.

H. Goutte; J. F. Berger; P. Casoli; D. Gogny

2005-02-01T23:59:59.000Z

91

Load Modeling and State Estimation Methods for Power Distribution Systems: Final Report  

SciTech Connect

The project objective was to provide robust state estimation for distribution systems, comparable to what has been available on transmission systems for decades. This project used an algorithm called Branch Current State Estimation (BCSE), which is more effective than classical methods because it decouples the three phases of a distribution system, and uses branch current instead of node voltage as a state variable, which is a better match to current measurement.

Tom McDermott

2010-05-07T23:59:59.000Z

92

Reproducibility of Interfraction Lung Motion Probability Distribution Function Using Dynamic MRI: Statistical Analysis  

SciTech Connect

Purpose: To investigate the statistical reproducibility of craniocaudal probability distribution function (PDF) of interfraction lung motion using dynamic magnetic resonance imaging. Methods and Materials: A total of 17 subjects, 9 healthy volunteers and 8 lung tumor patients, underwent two to three continuous 300-s magnetic resonance imaging scans in the sagittal plane, repeated 2 weeks apart. Three pulmonary vessels from different lung regions (upper, middle, and lower) in the healthy subjects and lung tumor patients were selected for tracking, and the displacement PDF reproducibility was evaluated as a function of scan time and frame rate. Results: For both healthy subjects and patients, the PDF reproducibility improved with increased scan time and converged to an equilibrium state during the 300-s scan. The PDF reproducibility at 300 s (mean, 0.86; range, 0.70-0.96) were significantly (p < 0.001) increased compared with those at 5 s (mean, 0.65; range, 0.25-0.79). PDF reproducibility showed less sensitivity to imaging frame rates that were >2 frames/s. Conclusion: A statistically significant improvement in PDF reproducibility was observed with a prolonged scan time among the 17 participants. The confirmation of PDF reproducibility over times much shorter than stereotactic body radiotherapy delivery duration is a vital part of the initial validation process of probability-based treatment planning for stereotactic body radiotherapy for lung cancer.

Cai Jing; Read, Paul W.; Larner, James M. [Department of Radiation Oncology, University of Virginia, Charlottesville, VA (United States); Jones, David R. [Department of Surgery, University of Virginia, Charlottesville, VA (United States); Benedict, Stanley H. [Department of Radiation Oncology, University of Virginia, Charlottesville, VA (United States); Sheng Ke [Department of Radiation Oncology, University of Virginia, Charlottesville, VA (United States)], E-mail: ks2mc@virginia.edu

2008-11-15T23:59:59.000Z

93

DAHM: A green and dynamic web application hosting manager across geographically distributed data centers  

Science Conference Proceedings (OSTI)

Dynamic Application Hosting Management (DAHM) is proposed for geographically distributed data centers, which decides on the number of active servers and on the workload share of each data center. DAHM achieves cost-efficient application hosting by taking ... Keywords: Data center cost efficiency, hosting management, server management, workload management

Zahra Abbasi; Tridib Mukherjee; Georgios Varsamopoulos; Sandeep K. S. Gupta

2012-10-01T23:59:59.000Z

94

Ontology-Driven dynamic discovery and distributed coordination of a robot swarm  

Science Conference Proceedings (OSTI)

Swarm robotic systems rely heavily on dynamic interactions to provide interoperability between the different autonomous robots. In current systems, interactions between robots are programmed into the applications controlling them. Incorporating service ... Keywords: context-awareness, distributed planning, semantics, service discovery, swarm robotics

Niels Bouten; Anna Hristoskova; Femke Ongenae; Jelle Nelis; Filip De Turck

2012-06-01T23:59:59.000Z

95

Statistics of voltage drop in radial distribution circuits: a dynamic programming approach  

E-Print Network (OSTI)

We analyze a power distribution line with high penetration of distributed generation and strong variations of power consumption and generation levels. In the presence of uncertainty the statistical description of the system is required to assess the risks of power outages. In order to find the probability of exceeding the constraints for voltage levels we introduce the probability distribution of maximal voltage drop and propose an algorithm for finding this distribution. The algorithm is based on the assumption of random but statistically independent distribution of loads on buses. Linear complexity in the number of buses is achieved through the dynamic programming technique. We illustrate the performance of the algorithm by analyzing a simple 4-bus system with high variations of load levels.

Turitsyn, Konstantin S

2010-01-01T23:59:59.000Z

96

Transmission Line Inspires A New Distributed Algorithm to Solve the Nonlinear Dynamical System of Physical Circuit  

E-Print Network (OSTI)

As known, physical circuits, e.g. integrated circuits or power system, work in a distributed manner, but these circuits could not be easily simulated in a distributed way. This is mainly because that the dynamical system of physical circuits is nonlinear and the linearized system of physical circuits is non-symmetrical. This paper proposes a simple and natural strategy to simulate the physical circuit in parallel, by mimicking the internal wires or interconnects inside the circuits by distributed numerical algorithm. Mimic Transmission Method (MTM) is a new distributed numerical algorithm to solve the nonlinear ordinary differential equations extracted from physical circuits. It maps the transmission delay of interconnects between subcircuits to the communication delay of digital data link between processors. MTM is not a global iterative algorithm, and it does only one distributed computation at each time window to obtain accurate result, so unconvergence issues do not need to be worried about.

Wei, Fei

2010-01-01T23:59:59.000Z

97

Integrating GIS with Distributed Applications Using Dynamic Data-Sharing Mechanisms  

Science Conference Proceedings (OSTI)

Effective integration of a stand-alone GIS (e.g., ArcView 3.x) into a complex distributed software application requires an efficient, reliable mechanism for passing data and function requests to and from the GIS component. This paper describes the use of dynamic data-sharing and inter-process communication mechanisms to integrate GIS capability into a multi-jurisdictional distributed emergency management information system. These mechanisms include dynamic layer updates from spatial and attribute information shared via a distributed relational database across multiple sites; storage of private and shared ViewMarks to facilitate consistent GIS views; and asynchronous inter-process communication using function queuing and a data sharing library.

Burnett, Robert A. (BATTELLE (PACIFIC NW LAB)); Tzemos, Spyridon (BATTELLE (PACIFIC NW LAB)); Stoops, LaMar R. (BATTELLE (PACIFIC NW LAB))

2002-08-21T23:59:59.000Z

98

Product Form Steady-State Distribution for Stochastic Automata Networks with Domino Synchronizations  

Science Conference Proceedings (OSTI)

We present a new kind of synchronization which allows Continuous Time Stochastic Automata Networks (SAN) to have a product form steady-state distribution. Unlike previous models on SAN with product form solutions, our model allows synchronization between ...

Jean-Michel Fourneau

2008-08-01T23:59:59.000Z

99

Distributing Power Grid State Estimation on HPC Clusters A System Architecture Prototype  

Science Conference Proceedings (OSTI)

The future power grid is expected to further expand with highly distributed energy sources and smart loads. The increased size and complexity lead to increased burden on existing computational resources in energy control centers. Thus the need to perform real-time assessment on such systems entails efficient means to distribute centralized functions such as state estimation in the power system. In this paper, we present our early prototype of a system architecture that connects distributed state estimators individually running parallel programs to solve non-linear estimation procedure. The prototype consists of a middleware and data processing toolkits that allows data exchange in the distributed state estimation. We build a test case based on the IEEE 118 bus system and partition the state estimation of the whole system model to available HPC clusters. The measurement from the testbed demonstrates the low overhead of our solution.

Liu, Yan; Jiang, Wei; Jin, Shuangshuang; Rice, Mark J.; Chen, Yousu

2012-08-20T23:59:59.000Z

100

Fault Detection in Distributed Climate Sensor Networks using Dynamic Bayesian Networks  

Science Conference Proceedings (OSTI)

The Atmospheric Radiation Measurement program operated by U.S. Department of Energy is one of the largest climate research programs dedicated to the collection of long-term continuous measurements of cloud properties and other key components of the earth’s climate system. Given the critical role that collected ARM data plays in the analysis of atmospheric processes and conditions and in the enhancement and evaluation of global climate models, the production and distribution of high-quality data is one of ARM’s primary mission objectives. Fault detection in ARM’s distributed sensor network is one critical ingredient towards maintaining high quality and useful data. We are modeling ARM’s distributed sensor network as a dynamic Bayesian network where key measurements are mapped to Bayesian network variables. We then define the conditional dependencies between variables by discovering highly correlated variable pairs from historical data. The resultant dynamic Bayesian network provides an automated approach to identifying whether certain sensors are malfunctioning or failing in the distributed sensor network. A potential fault or failure is detected when an observed measurement is not consistent with its expected measurement and the observed measurements of other related sensors in the Bayesian network. We present some of our experiences and promising results with the fault detection dynamic Bayesian network.

Chin, George; Choudhury, Sutanay; Kangas, Lars J.; McFarlane, Sally A.; Marquez, Andres

2010-12-07T23:59:59.000Z

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


101

Laser wavelength effects on the charge state resolved ion energy distributions from laser-produced Sn plasma  

E-Print Network (OSTI)

Laser wavelength effects on the charge state resolved ion energy distributions from laser of laser wavelength on the charge state resolved ion energy distributions from laser-produced Sn plasma channel electron multiplier are used to record the charge state resolved ion energy distributions 100 cm

Najmabadi, Farrokh

102

Dynamical Energy Analysis - determining wave energy distributions in complex vibro-acoustical structures  

E-Print Network (OSTI)

We propose a new approach towards determining the distribution of mechanical and acoustic wave energy in complex built-up structures. The technique interpolates between standard Statistical Energy Analysis (SEA) and full ray tracing containing both these methods as limiting case. By writing the flow of ray trajectories in terms of linear phase space operators, it is suggested here to reformulate ray-tracing algorithms in terms of boundary operators containing only short ray segments. SEA can now be identified as a low resolution ray tracing algorithm and typical SEA assumptions can be quantified in terms of the properties of the ray dynamics. The new technique presented here enhances the range of applicability of standard SEA considerably by systematically incorporating dynamical correlations wherever necessary. Some of the inefficiencies inherent in typical ray tracing methods can be avoided using only a limited amount of the geometrical ray information. The new dynamical theory - Dynamical Energy Analysis (DEA) - thus provides a universal approach towards determining wave energy distributions in complex structures.

Gregor Tanner

2008-03-12T23:59:59.000Z

103

Framework of agent-based intelligence system with two-stage decision-making process for distributed dynamic scheduling  

Science Conference Proceedings (OSTI)

The advent of multiagent systems, a branch of distributed artificial intelligence, introduced a new approach to problem solving through agents interacting in the problem solving process. In this paper, a collaborative framework of a distributed agent-based ... Keywords: Agent, Compensatory negotiation process, Decision-making, Distributed dynamic scheduling, Fuzzy decision-making process, Multiagent systems

Yee-Ming Chen; Shih-Chang Wang

2007-01-01T23:59:59.000Z

104

Estimating Traveler Populations at Airport and Cruise Terminals for Population Distribution and Dynamics  

Science Conference Proceedings (OSTI)

In recent years, uses of high-resolution population distribution databases are increasing steadily for environmental, socioeconomic, public health, and disaster-related research and operations. With the development of daytime population distribution, temporal resolution of such databases has been improved. However, the lack of incorporation of transitional population, namely business and leisure travelers, leaves a significant population unaccounted for within the critical infrastructure networks, such as at transportation hubs. This paper presents two general methodologies for estimating passenger populations in airport and cruise port terminals at a high temporal resolution which can be incorporated into existing population distribution models. The methodologies are geographically scalable and are based on, and demonstrate how, two different transportation hubs with disparate temporal population dynamics can be modeled utilizing publicly available databases including novel data sources of flight activity from the Internet which are updated in near-real time. The airport population estimation model shows great potential for rapid implementation for a large collection of airports on a national scale, and the results suggest reasonable accuracy in the estimated passenger traffic. By incorporating population dynamics at high temporal resolutions into population distribution models, we hope to improve the estimates of populations exposed to or at risk to disasters, thereby improving emergency planning and response, and leading to more informed policy decisions.

Jochem, Warren C [ORNL; Sims, Kelly M [ORNL; Bright, Eddie A [ORNL; Urban, Marie L [ORNL; Rose, Amy N [ORNL; Coleman, Phil R [ORNL; Bhaduri, Budhendra L [ORNL

2013-01-01T23:59:59.000Z

105

Robustness of spin-coupling distributions for perfect quantum state transfer  

Science Conference Proceedings (OSTI)

The transmission of quantum information between different parts of a quantum computer is of fundamental importance. Spin chains have been proposed as quantum channels for transferring information. Different configurations for the spin couplings were proposed in order to optimize the transfer. As imperfections in the creation of these specific spin-coupling distributions can never be completely avoided, it is important to find out which systems are optimally suited for information transfer by assessing their robustness against imperfections or disturbances. We analyze different spin coupling distributions of spin chain channels designed for perfect quantum state transfer. In particular, we study the transfer of an initial state from one end of the chain to the other end. We quantify the robustness of different coupling distributions against perturbations and we relate it to the properties of the energy eigenstates and eigenvalues. We find that the localization properties of the systems play an important role for robust quantum state transfer.

Zwick, Analia [Fakultaet Physik, Technische Universitaet Dortmund, D-44221 Dortmund (Germany); Facultad de Matematica, Astronomia y Fisica and Instituto de Fisica Enrique Gaviola, Universidad Nacional de Cordoba, 5000 Cordoba (Argentina); Alvarez, Gonzalo A.; Stolze, Joachim [Fakultaet Physik, Technische Universitaet Dortmund, D-44221 Dortmund (Germany); Osenda, Omar [Facultad de Matematica, Astronomia y Fisica and Instituto de Fisica Enrique Gaviola, Universidad Nacional de Cordoba, 5000 Cordoba (Argentina)

2011-08-15T23:59:59.000Z

106

Visible and dark matter in M 31 - II. A dynamical model and dark matter density distribution  

E-Print Network (OSTI)

In the present paper we derive the density distribution of dark matter (DM) in a well-observed nearby disc galaxy, the Andromeda galaxy. From photometrical and chemical evolution models constructed in the first part of the study (Tamm, Tempel & Tenjes 2007 (arXiv:0707.4375), hereafter Paper I) we can calculate the mass distribution of visible components (the bulge, the disc, the stellar halo, the outer diffuse stellar halo). In the dynamical model we calculate stellar rotation velocities along the major axis and velocity dispersions along the major, minor and intermediate axes of the galaxy assuming triaxial velocity dispersion ellipsoid. Comparing the calculated values with the collected observational data, we find the amount of DM, which must be added to reach an agreement with the observed rotation and dispersion data. We conclude that within the uncertainties, the DM distributions by Moore, Burkert, Navarro, Frenk & White (NFW) and the Einasto fit with observations nearly at all distances. The NFW and Einasto density distributions give the best fit with observations. The total mass of M 31 with the NFW DM distribution is 1.19*10^12 M_sun, the ratio of the DM mass to the visible mass is 10.0. For the Einasto DM distribution, these values are 1.28*10^12 M_sun and 10.8. The ratio of the DM mass to the visible mass inside the Holmberg radius is 1.75 for the NFW and the Einasto distributions. For different cuspy DM distributions, the virial mass is in a range 6.9-7.9*10^11 M_sun and the virial radius is ~150 kpc. The DM mean densities inside 10 pc for cusped models are 33 and 16 M_sun pc^-3 for the NFW and the Einasto profiles, respectively. For the cored Burkert profile, this value is 0.06 M_sun pc^-3.

Elmo Tempel; Antti Tamm; Peeter Tenjes

2007-07-30T23:59:59.000Z

107

PMU Placement for Dynamic State Tracking of Power Systems  

SciTech Connect

Accurately tracking the state variables (rotor angle and speed) is a necessity for monitoring system stability conditions and assessing the risks of large-scale system collapse. This paper explores how the number and locations of PMUs installed in the system are determined to ensure satisfactory state tracking performance. A search algorithm is presented for determining PMU placement (location and quantity). The algorithm determines a placement that gives small tracking error in polynomial time. A modified, scalable algorithm is also presented. Observability in the presence of faults is considered. Simulation results for a 16-machine and a 50-machine system are provided.

Sun, Yannan; Du, Pengwei; Huang, Zhenyu; Kalsi, Karanjit; Diao, Ruisheng; Anderson, Kevin K.; Li, Yulan; Lee, Barry

2011-08-04T23:59:59.000Z

108

A simulation-and-regression approach for stochastic dynamic programs with endogenous state variables  

Science Conference Proceedings (OSTI)

We investigate the optimum control of a stochastic system, in the presence of both exogenous (control-independent) stochastic state variables and endogenous (control-dependent) state variables. Our solution approach relies on simulations and regressions ... Keywords: Approximate dynamic programming, Hydropower management, Least-squares Monte Carlo, Simulation and regression, Stochastic control

Michel Denault, Jean-Guy Simonato, Lars Stentoft

2013-11-01T23:59:59.000Z

109

Strategic Sequencing for State Distributed PV Policies: Program Overviews (Fact Sheet), NREL (National Renewable Energy Laboratory)  

NLE Websites -- All DOE Office Websites (Extended Search)

report finds report finds that through strategic policy implementation, governments can successfully support renewable energy even in times when funding is limited. p r o g r a m o v e r v i e w s Strategic Sequencing for State Distributed PV Policies New analysis report aims to help state officials and policymakers expand markets for solar technologies and ultimately reduce the cost of installed solar nationwide In recent years, state and local policymakers have shown increasing interest in developing renewable energy markets to promote local economic development, increase energy security, and reduce the environmental impact of electricity production. The National Renewable Energy Laboratory's Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of

110

Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions  

DOE Green Energy (OSTI)

State and local policymakers show increasing interest in spurring the development of customer-sited distributed generation (DG), in particular solar photovoltaic (PV) markets. Prompted by that interest, this analysis examines the use of state policy as a tool to support the development of a robust private investment market. This analysis builds on previous studies that focus on government subsidies to reduce installation costs of individual projects and provides an evaluation of the impacts of policies on stimulating private market development.

Doris, E.; Krasko, V.A.

2012-10-01T23:59:59.000Z

111

Security bound of continuous-variable quantum key distribution with noisy coherent states and channel  

E-Print Network (OSTI)

Security of a continuous-variable quantum key distribution protocol based on noisy coherent states and channel is analyzed. Assuming the noise of coherent states is induced by Fred, a neutral party relative to others, we prove that the prepare and measurement scheme and entanglement-based scheme are equivalent. Then, we show that this protocol is secure against Gaussian collective attacks even if the channel is lossy and noisy, and further, a lower bound to the secure key rate is derived.

Yong Shen; Jian Yang; Hong Guo

2009-04-08T23:59:59.000Z

112

STATE RESEARCH, OUTREACH AND TECHNICAL ASSISTANCE TO IMPROVE THE NATION’S TRANSMISSION AND DISTRIBUTION SYSTEMS  

SciTech Connect

The goal of the project 'State Research, Outreach and Technical Assistance to Improve the Nation's Transmission and Distribution Systems' was for the National Association of State Energy Officials (NASEO) to partner with the National Governors Association (NGA) Center for Best Practices, the National Conference of State Legislators (NCSL), and the National Association of Regulatory Utility Commissioners (NARUC) to assist DOE's Office of Electricity Delivery and Energy Reliability (OE) in its effort to modernize and expand America's electric delivery system. NASEO focused on key transmission and distribution issues where coordination between the federal and state governments was critical. Throughout the duration of this program, NASEO engaged in monthly coordination - occasionally more often - with NGA, NCSL and NARUC. NASEO staff and General Counsel Jeff Genzer also had regular face-to-face meetings, phone calls and emails with OE staff to learn from DOE and share information and feedback from the state energy offices on transmission and distribution. To commence work on this project, NASEO met with OE, NGA, NCSL and NARUC in January 2005 and remained committed to regular communications with all involved entities throughout the duration of this project. NASEO provided comments and analysis to the other partners on deliverable reports under this award. This award provided support to NASEO's Energy Production Committee (chaired by Dub Taylor of Texas, followed by Tom Fuller of Wyoming) to plan and host sessions at NASEO's Annual Meeting and Energy Outlook Conferences. Sessions included presentations from state, DOE, national laboratory and private sector experts on transmission, distribution, distributed energy resources, integrating renewable resources into the electricity grid. NASEO disseminated information to its members through emails and its website on transmission and distribution technology and policy. NASEO was an active member of the National Council on Electricity Policy as part of its transmission and distribution work. The National Council on Electricity Policy (National Council) is a venture between NASEO, NARUC, NCSL, National Association of Clean Air Agencies (NACAA) and the National Governors Association (NGA). The National Council also includes several federal members including FERC, DOE, and the U.S. Environment Protection Agency (EPA). NASEO members serve on the policy committee and NASEO General Council Jeff Genzer is a member of the National Council's Executive Committee. NASEO staff participated on regularly scheduled policy committee and executive committee calls and helped to plan agendas and publications for various state decision-makers. Specifically, NASEO organized state energy officials and participating in formulating the agenda for meetings, including the Mid-Atlantic Distributed Generation Workshop in New Jersey in September 2007. NASEO shared the results of these meetings through its website, email communications and direct conversations with state energy officials. NASEO participated as a member of the National Action Plan for Energy Efficiency (NAPEE) Leadership Committee, representing the interests and expertise of the state energy offices. In addition, NASEO was part of the Long-Term Vision Committee. NASEO members also participated in these activities and NASEO has encouraged further efforts of its membership with regards to NAPEE. NASEO has worked to ensure that its membership has the most timely and accurate information about transmission and distribution technology and policy. Its work with other associations has facilitated greater partnerships to enhance activities across the nation and encourage state energy offices to collaborate with public utility commissions, legislatures and executives to improve modern transmission and distribution. NASEO has identified transmission and distribution as a key area for further action.

David Terry; Ben Deitchman; Shemika Spencer

2009-06-29T23:59:59.000Z

113

The use of a distributed hydrologic model to predict dynamic landslide susceptibility for a humid basin in Puerto Rico  

E-Print Network (OSTI)

This thesis describes the use of a distributed hydrology model in conjunction with a Factor of Safety (FS) algorithm to predict dynamic landslide susceptibility for a humid basin in Puerto Rico. The Mameyes basin, located ...

Kamal, Sameer A. (Sameer Ahmed)

2009-01-01T23:59:59.000Z

114

The Third State of the Schelling Model of Residential Dynamics  

E-Print Network (OSTI)

The Schelling model of segregation between two groups of residential agents (Schelling 1971; Schelling 1978) reflects the most abstract view of the non-economic forces of residential migrations: be close to people of 'your own'. The model assumes that the residential agent, located in the neighborhood where the fraction of 'friends' is less than a predefined threshold value F, tries to relocate to a neighborhood for which this fraction is above F. It is well known that for the equal groups, depending on F, Schelling's residential pattern converges either to complete integration (random pattern) or segregation. We investigate Schelling model pattern dynamics as dependent on F, the ratio of the group numbers and the size of the neighborhood and demonstrate that the traditional integrate-segregate dichotomy is incomplete. In case of unequal groups, there exists the wide interval of the F-values that entails the third persistent residential pattern, in which part of the majority population segregates, while the r...

Benenson, Itzhak

2009-01-01T23:59:59.000Z

115

Distribution of Entropy of Bardeen Regular Black Hole with Corrected State Density  

E-Print Network (OSTI)

We consider corrections to all orders in the Planck length on the quantum state density, and calculate the statistical entropy of the scalar field on the background of the Bardeen regular black hole numerically. We obtain the distribution of entropy which is inside the horizon of black hole and the contribution of the vicinity of horizon takes a great part of the whole entropy.

Hai Huang; Juhua Chen; Yongjiu Wang

2013-09-23T23:59:59.000Z

116

Solid-State Lighting: Registration for Email Distribution List for DOE  

NLE Websites -- All DOE Office Websites (Extended Search)

Program » Solid-State Lighting » Program » Solid-State Lighting » Registration Bookmark and Share Registration for Email Distribution List for DOE Solid-State Lighting Portfolio Updates By registering for the Department of Energy's Solid-State Lighting (SSL) email distribution list, you will receive information on public meetings, document postings, and other issues pertinent to the DOE SSL Portfolio.* Please provide the following information: (*Indicates required information.) First Name* Last Name* Organization* Occupation* Select your occupation Researcher Manufacturer Distributor Lighting Designer/Professional Architect Lighting Trade Association Energy Efficiency Organization Utility Local/State/Federal Government Media/Communications Other Address 1* Address 2 City* State* Select your state / province Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virgin Islands Virginia Washington West Virginia Wisconsin Wyoming ------------U.S. Military------------ America (AA) Overseas Europe (AE) Overseas Pacific (AP) ---------------Canada--------------- Alberta British Columbia Manitoba New Brunswick Newfoundland and Labrador Nova Scotia Northwest Territories Nunavut Ontario Prince Edward Island Quebec Saskatchewan Yukon Territory --------------------------------------- Outside US and Canada

117

Chaotic itinerancy and power-law residence time distribution in stochastic dynamical system  

E-Print Network (OSTI)

To study a chaotic itinerant motion among varieties of ordered states, we propose a stochastic model based on the mechanism of chaotic itinerancy. The model consists of a random walk on a half-line, and a Markov chain with a transition probability matrix. To investigate the stability of attractor ruins in the model, we analyze the residence time distribution of orbits at attractor ruins. We show that the residence time distribution averaged by all attractor ruins is given by the superposition of (truncated) power-law distributions, if a basin of attraction for each attractor ruin has zero measure. To make sure of this result, we carry out a computer simulation for models showing chaotic itinerancy. We also discuss the fact that chaotic itinerancy does not occur in coupled Milnor attractor systems if the transition probability among attractor ruins can be represented as a Markov chain.

Jun Namikawa

2004-10-15T23:59:59.000Z

118

Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions  

NLE Websites -- All DOE Office Websites (Extended Search)

Strategic Sequencing for State Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions V.A. Krasko and E. Doris National Renewable Energy Laboratory Technical Report NREL/TP-7A30-56428 October 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions V.A. Krasko and E. Doris National Renewable Energy Laboratory Prepared under Task No. SM12.1070

119

Performance of Quantum Key Distribution Protocol with Dual-Rail Displaced Photon States  

E-Print Network (OSTI)

We propose a scheme for quantum key distribution (QKD) protocol with dual-rail displaced photon states. Displaced single photon states carry bit value of code which may be extracted while coherent states carry nothing and they only provide inconclusive outcome. Developed QKD protocol works with experimental attendant noise to observe presence of malicious Eve. Pulses with large amplitudes unlike conventional QKD relying on faint laser pulses are used that may approximate it to standard telecommunication communication and may show resistance to eavesdropping even in settings with high attenuation. Information leakage to the eavesdropper is determined from comparison of output distribution of the outcomes with ideal one that is defined by two additional inaccessible to nobody, saving for who sends the pulses, parameters. Robustness to some possible eavesdropping attacks is shown.

Sergey A. Podoshvedov

2009-05-13T23:59:59.000Z

120

Visible and dark matter in M 31 - II. A dynamical model and dark matter density distribution  

E-Print Network (OSTI)

In the present paper we derive the density distribution of dark matter (DM) in a well-observed nearby disc galaxy, the Andromeda galaxy. From photometrical and chemical evolution models constructed in the first part of the study (Tamm, Tempel & Tenjes 2007 (arXiv:0707.4375), hereafter Paper I) we can calculate the mass distribution of visible components. In the dynamical model we calculate stellar rotation velocities along the major axis and velocity dispersions along the major, minor and intermediate axes of the galaxy. Comparing the calculated values with the collected observational data, we find the amount of DM, which must be added to reach an agreement with the observed rotation and dispersion data. We conclude that within the uncertainties, the DM distributions by Moore, Burkert, isothermal, Navarro, Frenk & White (NFW) and Navarro et al. 2004 (N04) fit with observations. The NFW and N04 density distributions give the best fit with observations. The total mass of M 31 with the NFW DM distributio...

Tempel, Elmo; Tenjes, Peeter

2007-01-01T23:59:59.000Z

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


121

Distribution:  

Office of Legacy Management (LM)

JAN26 19% JAN26 19% Distribution: OR00 Attn: h.H.M.Roth DFMusser ITMM MMMann INS JCRyan FIw(2) Hsixele SRGustavson, Document rocm Formal file i+a@mmm bav@ ~@esiaw*cp Suppl. file 'Br & Div rf's s/health (lic.only) UNITED STATES ATOMIC ENERGY COMMISSION SPECIAL NUCLEAB MATERIAL LICENSE pursuant to the Atomic Energy Act of 1954 and Title 10, Code of Federal Regulations, Chapter 1, P&t 70, "Special Nuclear Material Reg)llatiqm," a license is hereby issued a$hortztng the licensee to rekeive and possess the special nuclear material designated below; to use such special nuclear mat&ial for the purpose(s) and at the place(s) designated below; and to transfer such material to per&s authorized to receive it in accordance with the regula,tions in said Part.

122

Using Distributed Energy Resources to Supply Reactive Power for Dynamic Voltage Regulation  

Science Conference Proceedings (OSTI)

Abstract Distributed energy (DE) resources are power sources located near load centers and equipped with power electronics converters to interface with the grid, therefore it is feasible for DE to provide reactive power (along with active power) locally for dynamic voltage regulation. In this paper, a synchronous condenser and a DE source with an inverter interface are implemented in parallel in a distribution system to regulate the local voltage. Developed voltage control schemes for the inverter and the synchronous condenser are presented. Experimental results show that both the inverter and the synchronous condenser can regulate the local voltage instantaneously although the dynamic response of the inverter is much faster than the synchronous condenser. In a system with multiple DEs performing local voltage regulation, the interaction of multiple DE at different locations under different load levels may have an impact to the control parameter setting for each individual DE control system. Future research is needed to find out the interaction of DEs to identify the optimal control parameter settings with the consideration of many factors such as system configuration, load variation, and so on

Xu, Yan [ORNL; Li, Fangxing [ORNL; Li, Huijuan [University of Tennessee, Knoxville (UTK); Rizy, D Tom [ORNL; Kueck, John D [ORNL

2008-01-01T23:59:59.000Z

123

Experiment and Simulation of Dynamic Voltage Regulation in Multiple Distributed Energy Resources Systems  

Science Conference Proceedings (OSTI)

Distributed energy (DE) resources are power sources located near load centers and equipped with power electronics converters to interface with the grid, therefore it is feasible for DE to provide reactive power (along with active power) locally for dynamic voltage regulation. In this paper, a synchronous condenser and a microturbine with an inverter interface are implemented in parallel in a distribution system to regulate the local voltage. Developed voltage control schemes for the inverter and the synchronous condenser are presented. Experimental results show that both the inverter and the synchronous condenser can regulate the local voltage instantaneously although the dynamic response of the inverter is much faster than the synchronous condenser. In a system with multiple DEs performing local voltage regulation, the interaction between the DEs is studied. The simulation results show the relationship between the voltages in the system and the reactive power required for the voltage regulation. Also, integrated voltage regulation (multiple DEs performing voltage regulation) can increase the voltage regulation capability of DEs and reduce the capital and operating costs.

Xu, Yan [ORNL; Li, Fangxing [ORNL; Kueck, John D [ORNL; Rizy, D Tom [ORNL

2007-01-01T23:59:59.000Z

124

Quantum Chemical Analysis of the Excited State Dynamics of Hydrated Electrons  

E-Print Network (OSTI)

Quantum calculations are performed for an anion water cluster representing the first hydration shell of the solvated electron in solution. The absorption spectra from the ground state, the instant excited states and the relaxed excited states are calculated including CI-SD interactions. Analytic expressions for the nonadiabatic relaxation are presented. It is shown that the 50fs dynamics recently observed after s->p excitation is best accounted for if it is identified with the internal conversion, preceded by an adiabatic relaxation within the excited p state. In addition, transient absorptions found in the infrared are qualitatively reproduced by these calculations .

P. O. J. Scherer; Sighart F. Fischer

2006-02-01T23:59:59.000Z

125

THE DYNAMICS AND METALLICITY DISTRIBUTION OF THE DISTANT DWARF GALAXY VV124  

SciTech Connect

VV124 (UGC 4879) is an isolated, dwarf irregular/dwarf spheroidal (dIrr/dSph) transition-type galaxy at a distance of 1.36 Mpc. Previous low-resolution spectroscopy yielded inconsistent radial velocities for different components of the galaxy, and photometry hinted at the presence of a stellar disk. In order to quantify the stellar dynamics, we observed individual red giants in VV124 with the Keck/Deep Extragalactic Imaging Multi-Object Spectrograph (DEIMOS). We validated members based on their positions in the color-magnitude diagram, radial velocities, and spectral features. Our sample contains 67 members. The average radial velocity is (v{sub r} ) = -29.1 {+-} 1.3 km s{sup -1} in agreement with the previous radio measurements of H I gas. The velocity distribution is Gaussian, indicating that VV124 is supported primarily by velocity dispersion inside a radius of 1.5 kpc. Outside that radius, our measurements provide only an upper limit of 8.6 km s{sup -1} on any rotation in the photometric disk-like feature. The velocity dispersion is {sigma}{sub v} = 9.4 {+-} 1.0 km s{sup -1}, from which we inferred a mass of M{sub 1/2} = (2.1 {+-} 0.2) Multiplication-Sign 10{sup 7} M{sub Sun} and a mass-to-light ratio of (M/L{sub V} ){sub 1/2} = 5.2 {+-} 1.1 M{sub Sun }/L{sub Sun }, both measured within the half-light radius. Thus, VV124 contains dark matter. We also measured the metallicity distribution from neutral iron lines. The average metallicity, ([Fe/H]) = -1.14 {+-} 0.06, is consistent with the mass-metallicity relation defined by dSph galaxies. The dynamics and metallicity distribution of VV124 appear similar to dSphs of similar stellar mass.

Kirby, Evan N.; Cohen, Judith G. [California Institute of Technology, 1200 East California Boulevard, MC 249-17, Pasadena, CA 91125 (United States); Bellazzini, Michele [INAF-Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna (Italy)

2012-05-20T23:59:59.000Z

126

Exact dynamics for optical coherent-state qubits subject to environment noise  

E-Print Network (OSTI)

We study the exact dynamics of optical qubits encoded via coherent states with opposite phases which are interacting with an environment modeled as a collection of simple harmonic oscillators. Making use of a coherent-state path integral formulation, we are able to study memory effects on the dynamics of the coherent-state qubits due to strong environment coupling. We apply this formulation to examine the time evolution of a noisy quantum channel formed by two coherent-state qubits that are subject to uncorrelated local environment noises. In particular, we examine the time evolution of entanglement and maximal teleportation fidelity of the noisy quantum channel and show that at strong coupling, due to large feedback effects from the environment noise, it is possible to maintain a robust quantum channel in the long-time limit if appropriate error-correcting code is applied.

Ming-Jay Yang; Shin-Tza Wu

2013-10-04T23:59:59.000Z

127

Gold charge state distributions in highly ionized, low-density beam plasmas  

Science Conference Proceedings (OSTI)

We present a systematic study of Au charge state distributions (CSDs) from low density, nonlocal thermodynamic equilibrium plasmas created in the Livermore electron beam ion traps (EBIT-I and EBIT-II). X-ray emission from Ni-like to Kr-like Au ions has been recorded from monoenergetic electron beam plasmas having E{sub beam}=2.66, 2.92, 3.53, and 4.54 keV, and the CSDs of the beam plasmas have been inferred by fitting the collisionally excited line transitions and radiative recombination emission features with synthetic spectra. We have modeled the beam plasmas using a collisional-radiative code with various treatments of the atomic structure for the complex M- and N-shell ions and find that only models with extensive doubly excited states can properly account for the dielectronic recombination (DR) channels that control the CSDs. This finding would be unremarkable for plasmas with thermal electron distributions, where many such states are sampled, and the importance of DR is well established. But in an EBIT source, the beam is resonant with only a subset of such states having spectator electrons in orbitals with high principal quantum number n (8{<=}n{<=}20). The inclusion of such states in the model was also necessary to obtain agreement with observed stabilizing transitions in the x-ray spectra.

May, M. J.; Scofield, J.; Schneider, M.; Wong, K.; Beiersdorfer, P. [PO Box 808 L260, Lawrence Livermore National Laboratory, Livermore California 94551 (United States); Hansen, S. B. [Sandia National Laboratories, ICF Target Design, Albuquerque New Mexico, 87185-1186 (United States)

2011-10-15T23:59:59.000Z

128

Performance of a quantum key distribution protocol with dual-rail displaced photon states  

Science Conference Proceedings (OSTI)

We propose a scheme for a quantum key distribution (QKD) protocol with dual-rail displaced photon states. Displaced single-photon states with different amplitudes carry bit values of code that may be extracted, while coherent states carry nothing and only provide an inconclusive outcome. A real resource of single photons is used, involving imperfections associated with experimental technique that result in a photon state with an admixture of the vacuum state. The protocol is robust against the loss of a single photon and the inefficiency of the detectors. Pulses with large amplitudes, unlike the conventional QKD relying on faint laser pulses, are used that may approximate it to standard telecommunication and may show resistance to eaves-dropping even in settings with high attenuation. Information leakage to the eavesdropper is determined from comparison of the output distributions of the outcomes with ideal ones that are defined by two additional parameters accessible to only those send the pulses. Robustness to some possible eavesdropping attacks is shown.

Podoshvedov, S. A., E-mail: sap@kias.re.k [Korea Institute for Advanced Study, School of Computational Sciences (Korea, Republic of)

2010-04-15T23:59:59.000Z

129

Improved practical decoy state method in quantum key distribution with parametric down conversion source  

E-Print Network (OSTI)

In this paper, a new decoy-state scheme for quantum key distribution with parametric down-conversion source is proposed. We use both three-intensity decoy states and their triggered and nontriggered components to estimate the fraction of single-photon counts and quantum bit-error rate of single-photon, and then deduce a more accurate value of key generation rate. The final key rate over transmission distance is simulated, which shows that we can obtain a higher key rate than that of the existing methods, including our own earlier work.

Qin Wang; Xiang-Bin Wang; Gunnar Bjork; Anders Karlsson

2007-03-27T23:59:59.000Z

130

Generation of distributed entangled coherent states over a lossy environment with inefficient detectors  

E-Print Network (OSTI)

Entangled coherent states are useful for various applications in quantum information processing but they are are sensitive to loss. We propose a scheme to generate distributed entangled coherent states over a lossy environment in such a way that the fidelity is independent of the losses at detectors heralding the generation of the entanglement. We compare our scheme with a previous one for the same purpose [Ourjoumtsev {\\em et al.}, Nat. Phys. {\\bf 5} 189 (2009)] and find parameters for which our new scheme results in superior performance.

A. P. Lund; T. C. Ralph; H. Jeong

2013-10-28T23:59:59.000Z

131

The Dynamic State of Transportation Finance A white paper for participants of the  

E-Print Network (OSTI)

. Oberstar Forum The Future of Transportation Finance: `Gas Tax Plus' and Beyond April 17-18, 2005 of departure regarding the future of transportation finance, it is important to understand current expenditureThe Dynamic State of Transportation Finance A white paper for participants of the 2005 James L

Minnesota, University of

132

Dynamic routing with inaccurate link state information in integrated IP-over-WDM networks  

Science Conference Proceedings (OSTI)

In this paper, we investigate the problem of dynamically routing bandwidth-guaranteed label switched paths (LSPs) in integrated IP-over-wavelength division multiplexed (WDM) networks with inaccurate link state information. To select a good path, a routing ... Keywords: GMPLS, IP-over-WDM, Integrated routing, QoS routing, Uncertainty modeling

J. Li; G. Mohan; E. Cheng Tien; K. C. Chua

2004-12-01T23:59:59.000Z

133

Experimental Decoy State Quantum Key Distribution Over 15km Los Alamos e-print archive: quant-ph/0503192  

E-Print Network (OSTI)

Decoy state protocols have recently been proposed as an innovative approach to improve dramatically the performance of quantum key distribution systems. Here, we present the first experimental demonstration of decoy state quantum key distribution, over 15km of Telecom fibers. 1

Yi Zhao; Bing Qi; Xiongfeng Ma; Hoi-kwong Lo; Li Qian

2005-01-01T23:59:59.000Z

134

Mass-energy distribution of fragments within Langevin dynamics of fission induced by heavy ions  

SciTech Connect

A stochastic approach based on four-dimensional Langevin fission dynamics is applied to calculating mass-energy distributions of fragments originating from the fission of excited compound nuclei. In the model under investigation, the coordinate K representing the projection of the total angular momentum onto the symmetry axis of the nucleus is taken into account in addition to three collective shape coordinates introduced on the basis of the {l_brace}c, h, {alpha}{r_brace} parametrization. The evolution of the orientation degree of freedom (K mode) is described by means of the Langevin equation in the overdamped regime. The tensor of friction is calculated under the assumption of the reducedmechanismof one-body dissipation in the wall-plus-window model. The calculations are performed for two values of the coefficient that takes into account the reduction of the contribution from the wall formula: k{sub s} 0.25 and k{sub s} = 1.0. Calculations with a modified wall-plus-window formula are also performed, and the quantity measuring the degree to which the single-particle motion of nucleons within the nuclear system being considered is chaotic is used for k{sub s} in this calculation. Fusion-fission reactions leading to the production of compound nuclei are considered for values of the parameter Z{sup 2}/A in the range between 21 and 44. So wide a range is chosen in order to perform a comparative analysis not only for heavy but also for light compound nuclei in the vicinity of the Businaro-Gallone point. For all of the reactions considered in the present study, the calculations performed within four-dimensional Langevin dynamics faithfully reproduce mass-energy and mass distributions obtained experimentally. The inclusion of the K mode in the Langevin equation leads to an increase in the variances of mass and energy distributions in relation to what one obtains from three-dimensional Langevin calculations. The results of the calculations where one associates k{sub s} with the measure of chaoticity in the single-particle motion of nucleons within the nuclear system under study are in good agreement for variances of mass distributions. The results of calculations for the correlations between the prescission neutron multiplicity and the fission-fragment mass, Left-Pointing-Angle-Bracket n{sub pre}(M) Right-Pointing-Angle-Bracket , and between, this multiplicity and the kinetic energy of fission fragments, Left-Pointing-Angle-Bracket n{sub pre}(E{sub k}) Right-Pointing-Angle-Bracket , are also presented.

Anischenko, Yu. A., E-mail: yuri.anischenko@gmail.com; Adeev, G. D. [Omsk State University (Russian Federation)

2012-08-15T23:59:59.000Z

135

Dynamic  

Office of Legacy Management (LM)

Dynamic Dynamic , and Static , Res.ponse of the Government Oil Shale Mine at ' , . , Rifle, Colorado, to the Rulison Event. , . ; . . DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. p ( y c - - a 2-1 0 -4- REPORT AT (29-2) 914 USBM 1 0 0 1 UNITED STATES DEPARTMENT O F THE I NTERIOR BUREAU OF MINES e s.09 P. L. R U S S E L L RESEARCH D l RECTOR Februory 2, lB7O DYNAMIC AND STATIC RESPONSE 'OF THE GOVERNMENT OIL SHALE MINE A T RIFLE, COLORADO, T O THE, RULISON EVENT ORDER FROM CFSTl A S ~ B ~ &J C / This page intentionally left blank CONTENTS Page . . . . . . . . . . . . . . . . . . . . . . . . . H i s t o r i c . a l Des c r i p t i o n 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Summary 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction 3

136

Robust State Estimation Under False Data Injection in Distributed Sensor Networks Shanshan Zheng, Tao Jiang, John S. Baras  

E-Print Network (OSTI)

Robust State Estimation Under False Data Injection in Distributed Sensor Networks Shanshan Zheng algorithms against false data injection. They are built upon an existing distributed Kalman filtering infrastructure assets, such as power grids, automated railroad control, water and gas distribution, etc

Baras, John S.

137

Excited State Structural Dynamics of Carotenoids and ChargeTransfer Systems  

Science Conference Proceedings (OSTI)

This dissertation describes the development andimplementation of a visible/near infrared pump/mid-infrared probeapparatus. Chapter 1 describes the background and motivation ofinvestigating optically induced structural dynamics, paying specificattention to solvation and the excitation selection rules of highlysymmetric molecules such as carotenoids. Chapter 2 describes thedevelopment and construction of the experimental apparatus usedthroughout the remainder of this dissertation. Chapter 3 will discuss theinvestigation of DCM, a laser dye with a fluorescence signal resultingfrom a charge transfer state. By studying the dynamics of DCM and of itsmethyl deuterated isotopomer (an otherwise identical molecule), we areable to investigate the origins of the charge transfer state and provideevidence that it is of the controversial twisted intramolecular (TICT)type. Chapter 4 introduces the use of two-photon excitation to the S1state, combined with one-photon excitation to the S2 state of thecarotenoid beta-apo-8'-carotenal. These 2 investigations show evidencefor the formation of solitons, previously unobserved in molecular systemsand found only in conducting polymers Chapter 5 presents an investigationof the excited state dynamics of peridinin, the carotenoid responsiblefor the light harvesting of dinoflagellates. This investigation allowsfor a more detailed understanding of the importance of structuraldynamics of carotenoids in light harvesting.

Van Tassle, Aaron Justin

2006-09-01T23:59:59.000Z

138

The Effects of Fuel Distribution, Velocity Distribution, and Fuel Composition on Static and Dynamic Instabilities and NOx Emissions in Lean Premixed Combustors  

NLE Websites -- All DOE Office Websites (Extended Search)

Distribution, and Fuel Composition on Static and Dynamic Instabilities and NO x Emissions in Lean Premixed Combustors Principal Investigator: Domenic A. Santavicca SCIES Project 03-01-SR109 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (7/01/03, 36 month duration) $403,777 Total Contract Value ($403,777 DOE) * Lower Emissions * Improved Static and Dynamic Stability * Fuel Versatility * Improved Design Methodology UTSR Workshop,10-18-05,DAS Gas Turbine Technology Needs * to determine the effect of combustor operating conditions on the static and dynamic stability characteristics of lean premixed combustors operating on natural gas and coal-derived syngas fuels * to develop a methodology for predicting the effect of

139

FORM EIA-826 MONTHLY ELECTRIC SALES AND REVENUE WITH STATE DISTRIBUTIONS REPORT  

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

MONTHLY ELECTRIC SALES AND REVENUE WITH STATE DISTRIBUTIONS REPORT OMB No. 1905-0129 Approval Expires: 12/31/2016 Burden: 1.37 hours NOTICE: This report is mandatory under the Federal Energy Administration Act of 1974 (Public Law 93-275). Failure to comply may result in criminal fines, civil penalties and other sanctions as provided by law. For further information concerning sanctions and data protections see the provision on sanctions and the provision concerning the confidentiality of information in the instructions. Title 18 USC 1001 makes it a criminal offense for any person knowingly and willingly to make to any Agency or Department of the United States any false, fictitious, or fraudulent statements as to any

140

A multi-formalism approach for model-based dynamic distribution of user interfaces of critical interactive systems  

Science Conference Proceedings (OSTI)

Evolution in the context of use requires evolutions in the user interfaces even when they are currently used by operators. User Centered Development promotes reactive answers to this kind of evolutions either by software evolutions through iterative ... Keywords: Automation, Distributed user interfaces, Dynamic reconfiguration of user interfaces, Formal description techniques, Interactive software engineering, Model-based approaches

Célia Martinie, David Navarre, Philippe Palanque

2014-01-01T23:59:59.000Z

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141

Modeling of utility distribution feeder in OpenDSS with steady state impact analysis of distributed generation.  

E-Print Network (OSTI)

??With the deregulation of the electric power industry and the advancement of new technologies, the attention of the utilities has been drawn towards adopting Distributed… (more)

Ramachandran, Vaidyanath.

2011-01-01T23:59:59.000Z

142

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

Tariff Structure on Distributed Generation Adoption in NewTariff Structure on Distributed Generation Adoption in NewTariff Structure on Distributed Generation Adoption in New

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

143

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

The Effects of Electricity Tariff Structure on DistributedThe Effects of Electricity Tariff Structure on DistributedThe Effects of Electricity Tariff Structure on Distributed

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

144

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

2001. Firestone, R. “Distributed Energy Resources Customeret. al. “Gas-Fired Distributed Energy Resource TechnologyFramework and Tools for Distributed Energy Resources”, LBNL-

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

145

Local Equation of State and Velocity Distributions of a Driven Granular Gas  

E-Print Network (OSTI)

We present event-driven simulations of a granular gas of inelastic hard disks with incomplete normal restitution in two dimensions between vibrating walls (without gravity). We measure hydrodynamic quantities such as the stress tensor, density and temperature profiles, as well as velocity distributions. Relating the local pressure to the local temperature and local density, we construct a local constitutive equation. For strong inelasticities the local constitutive relation depends on global system parameters, like the volume fraction and the aspect ratio. For moderate inelasticities the constitutive relation is approximately independent of the system parameters and can hence be regarded as a local equation of state, even though the system is highly inhomogeneous with heterogeneous temperature and density profiles arising as a consequence of the energy injection. Concerning the local velocity distributions we find that they do not scale with the square root of the local granular temperature. Moreover the high-velocity tails are different for the distribution of the x- and the y-component of the velocity, and even depend on the position in the sample, the global volume fraction, and the coefficient of restitution.

Olaf Herbst; Peter Müller; Matthias Otto; Annette Zippelius

2004-02-04T23:59:59.000Z

146

Dynamics of cavity fields with dissipative and amplifying couplings through multiple quantum two-state systems  

SciTech Connect

We consider simultaneous dissipative and amplifying coupling of cavity fields to multiple two-state systems. We derive a master equation for optical field in a leaky cavity coupled to a reservoir through multiple two-state systems. In our previous works we have limited our study to systems where the reservoir either solely absorbs energy (detector setup) or adds energy (amplifying setup) to the cavity through a single two-state system. In this work we allow both interactions simultaneously and derive a reduced dynamic model for the optical field. We also generalize our model to cover the coupling of the field to several two state systems and discuss its connection to macroscopic interaction, e.g., in semiconductors. Our model includes four physical parameters: the field two-state system coupling {gamma}, the excitation and deexcitation couplings of the two-state system by the reservoir {lambda}{sub A} and {lambda}{sub D}, respectively, and the mirror losses of the cavity C. We solve the steady-state fields at different regimes of these physical parameters. Furthermore, we show that, depending on the parameters, our model can describe the operation of a detector, a light emitting diode, or a laser.

Haeyrynen, Teppo; Oksanen, Jani; Tulkki, Jukka [Department of Biomedical Engineering and Computational Science, Aalto University School of Science and Technology, P. O. Box 12200, FI-00076 AALTO (Finland)

2011-01-15T23:59:59.000Z

147

Equation of state of dense plasmas by ab initio simulations: Bridging the gap between quantum molecular dynamics and orbital-free molecular dynamics at high temperature  

SciTech Connect

The applicability of quantum molecular dynamics to the calculation of the equation of state of a dense plasma is limited at high temperature by computational cost. Orbital-free molecular dynamics, based on the Thomas-Fermi semiclassical approximation and possibly on a gradient correction, is the only simulation method currently available at high temperature. We show in the case of a dense boron plasma that the two approaches give pressures differing by a few percent even at temperatures as high as a few tens of electron-volts. We indicate how the pressures obtained by orbital-free molecular dynamics can be corrected in order to appear as a limit of the quantum molecular dynamics results as temperature increases. We thus obtain a method to calculate the equation of state of a dense plasma up to high temperatures where quantum molecular dynamics cannot be directly implemented.

Danel, J.-F.; Kazandjian, L.; Zerah, G. [CEA, DAM, DIF, F-91297 Arpajon (France)

2012-12-15T23:59:59.000Z

148

Dynamic environment coupling induce synchronized states in coupled time-delayed electronic circuits  

E-Print Network (OSTI)

We experimentally demonstrate the occurrence of various synchronized states in coupled piece-wise linear time-delayed electronic circuits using dynamic environment coupling where the environment has its own intrinsic dynamics via feedback from the circuits. We carry out these experiments in two different coupling configurations, namely mutual and subsystem coupling configurations. Depending upon the coupling strength and the nature of feedback, we observe a transition from nonsynchronization to complete synchronization via phase synchronization and from nonsynchronization to inverse synchronization via inverse-phase synchronization between the circuits in hyperchaotic regime. Snapshots of the time evolution, phase projection plots and localized sets of the circuits as observed experimentally from the oscilloscope, along with supporting numerical simulations confirm the existence of different synchronized states. Further, the transition to different synchronized states can be verified from the changes in the largest Lyapunov exponents, Correlation of Probability of Recurrence and Correlation Coefficient as a function of the coupling strength. We present a detailed linear stability analysis and obtain conditions for different synchronized states.

R. Suresh; K. Srinivasan; D. V. Senthilkumar; K. Murali; M. Lakshmanan; J. Kurths

2013-04-04T23:59:59.000Z

149

The Human Carbon Budget: An Estimate of the Spatial Distribution of Metabolic Carbon Consumption and Release in the United States  

SciTech Connect

Carbon dioxide is taken up by agricultural crops and released soon after during the consumption of agricultural commodities. The global net impact of this process on carbon flux to the atmosphere is negligible, but impact on the spatial distribution of carbon dioxide uptake and release across regions and continents is significant. To estimate the consumption and release of carbon by humans over the landscape, we developed a carbon budget for humans in the United States. The budget was derived from food commodity intake data for the US and from algorithms representing the metabolic processing of carbon by humans. Data on consumption, respiration, and waste of carbon by humans were distributed over the US using geospatial population data with a resolution of approximately 450 x 450 m. The average adult in the US contains about 21 kg C and consumes about 67 kg C yr-1 which is balanced by the annual release of about 59 kg C as expired CO2, 7 kg C as feces and urine, and less than 1 kg C as flatus, sweat, and aromatic compounds. In 2000, an estimated 17.2 Tg C were consumed by the US population and 15.2 Tg C were expired to the atmosphere as CO2. Historically, carbon stock in the US human population has increased between 1790-2006 from 0.06 Tg to 5.37 Tg. Displacement and release of total harvested carbon per capita in the US is nearly 12% of per capita fossil fuel emissions. Humans are using, storing, and transporting carbon about the Earth s surface. Inclusion of these carbon dynamics in regional carbon budgets can improve our understanding of carbon sources and sinks.

West, Tristram O. [ORNL; Singh, Nagendra [ORNL; Marland, Gregg [ORNL; Bhaduri, Budhendra L [ORNL

2009-01-01T23:59:59.000Z

150

Simulating past and future dynamics of natural ecosystems in the United States. Global Biogeochemical Cycles 17(2)1045  

E-Print Network (OSTI)

[1] Simulations of potential vegetation distribution, natural fire frequency, carbon pools, and fluxes are presented for two DGVMs (Dynamic Global Vegetation Models) from the second phase of the Vegetation/Ecosystem Modeling and Analysis Project. Results link vegetation dynamics to biogeochemical cycling for the conterminous United States. Two climate change scenarios were used: a moderately warm scenario from the Hadley Climate Centre and a warmer scenario from the Canadian Climate Center. Both include sulfate aerosols and assume a gradual CO2 increase. Both DGVMs simulate a reduction of southwestern desert areas, a westward expansion of eastern deciduous forests, and the expansion of forests in the western part of the Pacific Northwest and in north-central California. Both DGVMs predict an increase in total biomass burnt in the next century, with a more pronounced increase under the Canadian scenario. Under the Hadley scenario, both DGVMs simulate increases in total carbon stocks. Under the Canadian scenario, both DGVMs simulate a decrease in live vegetation carbon. We identify similarities in model behavior due to the climate forcing and explain differences by the different structure of the models and their different sensitivity to

Dominique Bachelet; Ronald P. Neilson; Thomas Hickler; Raymond J. Drapek; James M. Lenihan; Martin T. Sykes; Benjamin Smith; Stephen Sitch; Kirsten Thonicke

2003-01-01T23:59:59.000Z

151

Distribution of local relaxation events in an aging 3D glass: spatio-temporal correlation and dynamical heterogeneity  

E-Print Network (OSTI)

We investigate the spatio-temporal distribution of microscopic relaxation events, defined through particle hops, in a model polymer glass using molecular dynamics simulations. We introduce an efficient algorithm to directly identify hops during the simulation, which allows the creation of a map of relaxation events for the whole system. Based on this map, we present density-density correlations between hops and directly extract correlation scales. These scales define collaboratively rearranging groups of particles and their size distributions are presented as a function of temperature and age. Dynamical heterogeneity is spatially resolved as the aggregation of hops into clusters, and we analyze their volume distribution and growth during aging. A direct comparison with the four-point dynamical susceptibility {\\chi}4 reveals the formation of a single dominating cluster prior to the {\\chi}4 peak, which indicates maximally correlated dynamics. An analysis of the fractal dimension of the hop clusters finds slightly non-compact shapes in excellent agreement with independent estimates from four-point correlations.

Anton Smessaert; Jörg Rottler

2013-08-28T23:59:59.000Z

152

Tools, Methods, and Modeling for Dynamic Distribution Systems, Power Factor Guidelines: Power Control with Distributed Energy Resources  

Science Conference Proceedings (OSTI)

With the onset in the past few years of tax incentives, subsidies, and renewable portfolio standards for distributed energy resources (DER), utilities are experiencing increasing numbers of interconnection requests for both large, MW-class systems as well as small, residential-scale systems. As a result, utilities need methods for integrating DER without impacting system reliability or power quality for other customers, while also maintaining flexibility for future changes and minimizing ...

2013-12-19T23:59:59.000Z

153

Excited state structure, energy and electron transfer dynamics of photosynthetic reaction centers: A hole burning study  

SciTech Connect

The excited state structure, early time energy and electron transfer dynamics for bacterial photosynthetic reaction center of Rhodoseudomonas viridis, Rhodobacter sphaeroides and green plant photosynthetic reaction center of Photosystem 2 (PS 2) have been determined by hole burning spectroscopy. Transient hole burned spectra of the bacterial reaction centers reveal a special pair Franck-Condon marker mode progression with a superimposed zero phonon hole. Such progression is found to be absent in green plant Photosystem 2 which raises the question of structural similarities between the PS 2 and bacterial reaction centers. The excited state decay times are obtained for all systems and found to be consistent with time domain experiments. Similar temperature dependence of the decay kinetics have been observed for both bacterial and PS 2 reaction centers. Study of different preparations of reaction center of Photosystem 2 utilizing hole burning spectroscopy indicates that Triton X-100 detergent significantly affect the absorption and persistent hole burned spectra and disrupts the energy transfer from the accessory chlorophyll to the active pheophytin. The comparison between the bacterial reaction centers and Photosystem 2 has been presented and discussed in order to understand the difference in their early time dynamics and the excited state structure. A theoretical model has been developed based on the principle of linear electron-phonon coupling and imhomogeneous broadening. Our experimental results are found to be in good agreement with the theoretical calculations. 335 refs., 43 figs.

Tang, De-Ming.

1991-03-22T23:59:59.000Z

154

Regional Sources of Nitrous Oxide over the United States: Seasonal Variation and Spatial Distribution  

SciTech Connect

This paper presents top-down constraints on the magnitude, spatial distribution, and seasonality of nitrous oxide (N{sub 2}O) emissions over the central United States. We analyze data from tall towers in 2004 and 2008 using a high resolution Lagrangian particle dispersion model paired with both geostatistical and Bayesian inversions. Our results indicate peak N{sub 2}O emissions in June with a strong seasonal cycle. The spatial distribution of sources closely mirrors data on fertilizer application with particularly large N{sub 2}O sources over the US Cornbelt. Existing inventories for N{sub 2}O predict emissions that differ substantially from the inverse model results in both seasonal cycle and magnitude. We estimate a total annual N{sub 2}O budget over the central US of 0.9-1.2 TgN/yr and an extrapolated budget for the entire US and Canada of 2.1-2.6 TgN/yr. By this estimate, the US and Canada account for 12-15% of the total global N{sub 2}O source or 32-39% of the global anthropogenic source as reported by the Intergovernmental Panel on Climate Change in 2007.

Miller, S. M.; Kort, E. A.; Hirsch, A. I.; Dlugokencky, E. J.; Andrews, A. E.; Xu, X.; Tian, H.; Nehrkorn, T.; Eluszkiewicz, J.; Michalak, A. M.; Wofsy, S. C.

2012-01-01T23:59:59.000Z

155

Observation of State of Charge Distributions in Lithium-ion Battery Electrodes  

Science Conference Proceedings (OSTI)

Current lithium-ion battery technology is gearing towards meeting the robust demand of power and energy requirements for all-electric transportation without compromising on the safety, performance, and cycle life. The state-of-charge (SOC) of a Li-ion cell can be a macroscopic indicator of the state-of-health of the battery. The microscopic origin of the SOC relates to the local lithium content in individual electrode particles and the effective ability of Li-ions to transport or shuttle between the redox couples through the cell geometric boundaries. Herein, micrometer-resolved Raman mapping of a transition-metal-based oxide positive electrode, Li{sub 1-x}(Ni{sub y}Co{sub z}Al{sub 1-y-z})O{sub 2}, maintained at different SOCs, is shown. An attempt has been made to link the underlying changes to the composition and structural integrity at the individual particle level. Furthermore, an SOC distribution at macroscopic length scale of the electrodes is presented.

Remillard, Jeffrey [Ford Research and Advanced Engineering, Ford Motor Company; O'Neil, Ann E [Ford Research and Advanced Engineering, Ford Motor Company; Bernardi, Dawn [Ford Research and Advanced Engineering, Ford Motor Company; Ro, Tina J [Massachusetts Institute of Technology (MIT); Miller, Ted [Ford Motor Company; Neitering, Ken [Ford Research and Advanced Engineering, Ford Motor Company; Go, Joo-Young [SB Limotive, Korea; Nanda, Jagjit [ORNL

2011-01-01T23:59:59.000Z

156

Dynamically and Observationally Constrained Estimates of Water-Mass Distributions and Ages in the Global Ocean  

Science Conference Proceedings (OSTI)

A data-constrained ocean circulation model is used to characterize the distribution of water masses and their ages in the global ocean. The model is constrained by the time-averaged temperature, salinity, and radiocarbon distributions in the ocean,...

Tim DeVries; François Primeau

2011-12-01T23:59:59.000Z

157

Size Distributions and Dynamical Properties of Shallow Cumulus Clouds from Aircraft Observations and Satellite Data  

Science Conference Proceedings (OSTI)

In this paper aircraft observations of shallow cumulus over Florida during the Small Cumulus Microphysics Study (SCMS) are analyzed. Size distributions of cloud fraction, mass flux, and in-cloud buoyancy flux are derived. These distributions ...

Stefaan M. A. Rodts; Peter G. Duynkerke; Harm J. J. Jonker

2003-08-01T23:59:59.000Z

158

Power-law distributions and fluctuation-dissipation relation in the stochastic dynamics of two-variable Langevin equations  

E-Print Network (OSTI)

We show that the general two-variable Langevin equations with inhomogeneous noise and friction can generate many different forms of power-law distributions. By solving the corresponding stationary Fokker-Planck equation, we can obtain a condition under which these power-law distributions are accurately created in a system away from equilibrium. This condition is an energy-dependent relation between the diffusion coefficient and the friction coefficient and thus it provides a fluctuation-dissipation relation for nonequilibrium systems with power-law distributions. Further, we study the specific forms of the Fokker-Planck equation that correctly leads to such power-law distributions, and then present a possible generalization of Klein-Kramers equation and Smoluchowski equation to a complex system, whose stationary-state solutions are exactly a Tsallis distribution.

Jiulin, Du

2012-01-01T23:59:59.000Z

159

A timed mobile agent planning approach for distributed information retrieval in dynamic network environments  

Science Conference Proceedings (OSTI)

The number of mobile agents and total execution time are two factors used to represent the system overhead that must be considered as part of mobile agent planning (MAP) for distributed information retrieval. In addition to these two factors, the time ... Keywords: Distributed computing, Distributed information retrieval, Internet and mobile computing, Mobile agents, P2P computing

Jin-Wook Baek; Heon Y. Yeom

2006-11-01T23:59:59.000Z

160

Steam Generator Management Program: Dynamic Analysis of a Steam Generator--Part 1: Method Development, Steady-State Verification, an d Steady-State Validation  

Science Conference Proceedings (OSTI)

This report is the first of a two-part set that details the development and application of a new software model for steam generator dynamic analysis. This report contains the background and development of the steam generator dynamic analysis model and the steady-state verification and validation results. The second report (to be published in early 2013) is expected to contain results from simulations that illustrate the effect of tube support plate clogging levels on the onset of water level instability ...

2012-06-28T23:59:59.000Z

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


161

Ground-state Properties of Small-Size Nonlinear Dynamical Lattices  

E-Print Network (OSTI)

We investigate the ground state of a system of interacting particles in small nonlinear lattices with M > 2 sites, using as a prototypical example the discrete nonlinear Schroedinger equation that has been recently used extensively in the contexts of nonlinear optics of waveguide arrays, and Bose-Einstein condensates in optical lattices. We find that, in the presence of attractive interactions, the dynamical scenario relevant to the ground state and the lowest-energy modes of such few-site nonlinear lattices reveals a variety of nontrivial features that are absent in the large/infinite lattice limits: the single-pulse solution and the uniform solution are found to coexist in a finite range of the lattice intersite coupling where, depending on the latter, one of them represents the ground state; in addition, the single-pulse mode does not even exist beyond a critical parametric threshold. Finally, the onset of the ground state (modulational) instability appears to be intimately connected with a non-standard (``double transcritical'') type of bifurcation that, to the best of our knowledge, has not been reported previously in other physical systems.

P. Buonsante; P. Kevrekidis; V. Penna; A. Vezzani

2006-04-14T23:59:59.000Z

162

Dynamical description of the moments of the energy distribution of fission fragments and scission of a fissile nucleus  

Science Conference Proceedings (OSTI)

A multidimensional stochastic approach to fission dynamics on the basis of three-dimensional Langevin equations is applied systematically to calculating the first four moments of the energy distribution of fission fragments over a broad range of Coulomb parameter values (700 fission theory: the vanishing of the neck radius at the scission instant and the equality of the neck radius to about 0.3R{sub 0} at this instant. In calculating the energy distribution, both of the criteria used lead to a fairly good description of experimental data on the first two moments and to a satisfactory description of data on the third and fourth moments of the distribution. However, the quality of the description of available experimental data is insufficiently good for giving preference to any of these criteria. Within three-dimensional Langevin dynamics, it is shown that the vanishing-radius criterion leads to unexpectably good agreement with experimental data on the first four moments of the energy distribution. A modified version of one-body dissipation where the coefficient that takes into account the reduction of the wall-formula contribution was set to k{sub s} = 0.25 was used in the calculations.

Borunov, M. V., E-mail: bmv@opsb.ru; Nadtochy, P. N.; Adeev, G. D. [Omsk State University (Russian Federation)

2007-11-15T23:59:59.000Z

163

Ethanol Distribution, Dispensing, and Use: Analysis of a Portion of the Biomass-to-Biofuels Supply Chain Using System Dynamics  

DOE Green Energy (OSTI)

The Energy Independence and Security Act of 2007 targets use of 36 billion gallons of biofuels per year by 2022. Achieving this may require substantial changes to current transportation fuel systems for distribution, dispensing, and use in vehicles. The U.S. Department of Energy and the National Renewable Energy Laboratory designed a system dynamics approach to help focus government action by determining what supply chain changes would have the greatest potential to accelerate biofuels deployment. The National Renewable Energy Laboratory developed the Biomass Scenario Model, a system dynamics model which represents the primary system effects and dependencies in the biomass-to-biofuels supply chain. The model provides a framework for developing scenarios and conducting biofuels policy analysis. This paper focuses on the downstream portion of the supply chain-represented in the distribution logistics, dispensing station, and fuel utilization, and vehicle modules of the Biomass Scenario Model. This model initially focused on ethanol, but has since been expanded to include other biofuels. Some portions of this system are represented dynamically with major interactions and feedbacks, especially those related to a dispensing station owner's decision whether to offer ethanol fuel and a consumer's choice whether to purchase that fuel. Other portions of the system are modeled with little or no dynamics; the vehicle choices of consumers are represented as discrete scenarios. This paper explores conditions needed to sustain an ethanol fuel market and identifies implications of these findings for program and policy goals. A large, economically sustainable ethanol fuel market (or other biofuel market) requires low end-user fuel price relative to gasoline and sufficient producer payment, which are difficult to achieve simultaneously. Other requirements (different for ethanol vs. other biofuel markets) include the need for infrastructure for distribution and dispensing and widespread use of high ethanol blends in flexible-fuel vehicles.

Vimmerstedt, L. J.; Bush, B.; Peterson, S.

2012-05-01T23:59:59.000Z

164

Characterization of structural properties and dynamic behavior using distributed accelerometer networks and numerical modeling  

E-Print Network (OSTI)

Both vibration-based structural health monitoring methodologies and seismic performance analysis rely on estimates of the base-line dynamic behavior of a structure. A common method for making this estimate is through ...

Trocha, Peter Adam

2013-01-01T23:59:59.000Z

165

Excited state carrier dynamics in CdS{sub x}Se{sub 1-x} semisconductor alloys as studied by ultrafast fluorescence spectroscopy  

Science Conference Proceedings (OSTI)

This dissertation discusses studies of the electron-hole pair dynamics of CdS{sub x}Se{sub 1-x} semiconductor alloys for the entire compositional range from x = 1 to x = 0 as examined by the ultrafast fluorescence techniques of time correlated single photon counting and fluorescence upconversion. Specifically, samples with x = 1, .75, .5, .25, and 0 were studied each at a spread of wavelengths about its respective emission maximum which varies according to {lambda} = 718nm - 210x nm. The decays of these samples were found to obey a Kohlrausch distribution, exp [(t/{tau}){sup {beta}}], with the exponent 3 in the range .5-.7 for the alloys. These results are in agreement with those expected for localization due to local potential variations resulting from the random distribution of sulfur and selenium atoms on the element VI A sub-lattice. This localization can be understood in terms of Anderson localization of the holes in states whose energy distribution tails into the forbidden energy band-gap. Because these states have energy dependent lifetimes, the carriers can decay via many parallel channels. This distribution of channels is the ultimate source of the Kohlrausch form of the fluorescence decays.

Gadd, S.E.

1995-08-01T23:59:59.000Z

166

Stability of the strahl and solar burst electron distribution function and its dynamics  

Science Conference Proceedings (OSTI)

The so-called ''fan'' instability of the strahl electron distribution as well as of the plateau-like distribution of the solar burst electrons formed due to excitation of Langmuir waves is discussed. It is shown that this instability can be an effective mechanism of the pitch angle diffusion of these populations of electrons in the solar wind.

Shevchenko, V.; Galinsky, V. [University of California, San Diego, 9500 Gilman Drive, La Jolla CA 92093 (United States)

2012-05-21T23:59:59.000Z

167

How trehalose protects DNA in the dry state: a molecular dynamics simulation  

E-Print Network (OSTI)

Molecular dynamics simulations were conducted on a system consisting of a decamer DNA solvated by trehalose and water (molecular ratio= 1:2), to mimic a relatively dry state for the DNA molecule. Simulations were performed at two different temperatures, 300 K and 450 K. The B-form DNA structure was shown to be stable at both temperatures. The analysis of hydrogen bonds between trehalose/water and DNA revealed that trehalose and backbone DNA formed the largest number of hydrogen bonds and thus constituted the major effect of structural protection for DNA. The number of hydrogen bonds formed by each OH group of trehalose with the backbone DNA was compared. Different types of trehalose-DNA interactions were analyzed, with no prevalent pattern recognized. Diffusion constants for trehalose and water were also calculated, suggesting a glassy/viscose state of the simulation system. It is believed that trehalose protects DNA in the dry state through the network of hydrogen bonds built by the sugars, which reduces the structural fluctuations of DNA and prevents its denaturation.

Fu, Xuebing

2008-08-01T23:59:59.000Z

168

Lazy Garbage Collection of Recovery State for Fault-Tolerant Distributed  

E-Print Network (OSTI)

-tolerant home-based lazy release consistency (HLRC) distributed shared-memory (DSM) system based on independent

Iftode, Liviu

169

High-frequency absorption of the dynamic mixed state in the surface superconductivity region  

SciTech Connect

We analyze the absorption of a high-frequency electromagnetic field in the type II superconductor Pb{sub 0.8}In{sub 0.2} in magnetic fields H{sub c2} < H < H{sub c3}. The absorption component proportional to the rate of variation of the external magnetic field is detected. We assume that this absorption component is associated with the dynamic mixed state of the superconducting shell containing 2D magnetic flux vortices (Kulik vortices). The motion of these vortices under the action of the critical current ensures the required difference between the external and internal magnetic inductions of the superconducting shell upon a change in the external magnetic field. This model correctly describes the observed behavior of absorption of rf electromagnetic radiation.

Berezin, V. A., E-mail: berezin@iptm.ru; Tulin, V. A., E-mail: tulin@iptm.ru [Russian Academy of Sciences, Institute of Microelectronics Technology and High-Purity Materials (Russian Federation)

2013-03-15T23:59:59.000Z

170

Universal dynamical decoupling of a single solid-state spin from a spin bath  

E-Print Network (OSTI)

Controlling the interaction of a single quantum system with its environment is a fundamental challenge in quantum science and technology. We dramatically suppress the coupling of a single spin in diamond with the surrounding spin bath by using double-axis dynamical decoupling. The coherence is preserved for arbitrary quantum states, as verified by quantum process tomography. The resulting coherence time enhancement is found to follow a general scaling with the number of decoupling pulses. No limit is observed for the decoupling action up to 136 pulses, for which the coherence time is enhanced more than 25 times compared to spin echo. These results uncover a new regime for experimental quantum science and allow to overcome a major hurdle for implementing quantum information protocols.

de Lange, G; Ristè, D; Dobrovitski, V V; Hanson, R

2010-01-01T23:59:59.000Z

171

Universal dynamical decoupling of a single solid-state spin from a spin bath  

E-Print Network (OSTI)

Controlling the interaction of a single quantum system with its environment is a fundamental challenge in quantum science and technology. We dramatically suppress the coupling of a single spin in diamond with the surrounding spin bath by using double-axis dynamical decoupling. The coherence is preserved for arbitrary quantum states, as verified by quantum process tomography. The resulting coherence time enhancement is found to follow a general scaling with the number of decoupling pulses. No limit is observed for the decoupling action up to 136 pulses, for which the coherence time is enhanced more than 25 times compared to spin echo. These results uncover a new regime for experimental quantum science and allow to overcome a major hurdle for implementing quantum information protocols.

G. de Lange; Z. H. Wang; D. Ristè; V. V. Dobrovitski; R. Hanson

2010-08-12T23:59:59.000Z

172

State-space solutions to the dynamic magnetoencephalography inverse problem using high performance computing  

E-Print Network (OSTI)

Determining the magnitude and location of neural sources within the brain that are responsible for generating magnetoencephalography (MEG) signals measured on the surface of the head is a challenging problem in functional neuroimaging. The number of potential sources within the brain exceeds by an order of magnitude the number of recording sites. As a consequence, the estimates for the magnitude and location of the neural sources will be ill-conditioned because of the underdetermined nature of the problem. One well-known technique designed to address this imbalance is the minimum norm estimator (MNE). This approach imposes an $L^2$ regularization constraint that serves to stabilize and condition the source parameter estimates. However, these classes of regularizer are static in time and do not consider the temporal constraints inherent to the biophysics of the MEG experiment. In this paper we propose a dynamic state-space model that accounts for both spatial and temporal correlations within and across candida...

Long, Christopher J; Temereanca, Simona; Desai, Neil U; Hämäläinen, Matti S; Brown, Emery N; 10.1214/11-AOAS483

2011-01-01T23:59:59.000Z

173

Numerical Simulation of Squeeze Film Dampers and Study of the Effect of Central Groove on the Dynamic Pressure Distribution  

E-Print Network (OSTI)

Squeeze film dampers are used in the high speed turbo machinery industry and aerospace industries as a means to reduce vibration amplitude, to provide damping, to improve dynamic stability of the rotor bearing system and to isolate structural components. The effects of cavitation included in previous studies were not effective. The effect of different design parameters were not studied thoroughly as experimental investigation of squeeze film dampers is very expensive. Few of them used numerical investigation but the methods they used are either time consuming or complicated. The present study investigated the feasibility of applying a steady state solver, which is computationally less expensive, for analyzing flow field inside the squeeze film dampers. The behavior of dynamic pressure profiles at different operating conditions, and the effect of a central groove on dynamic pressure profiles were also studied. Simulation results of a 3D case which is similar to the one experimentally studied by Delgado were used to establish if the moving reference frame (MRF) model in Fluent 12.1 can be used. A steady state solver in an absolute frame of reference was used to produce whirling motion of the rotor in this study. The inlet pressure of 31kpa and the whirling speed of 50 and 100Hz were used as boundary conditions. The mixture model with three percent dissolved air in lubricant is used to model multiphase flow. Singhal cavitation model is used to model cavitation. The simulations (50,000 iterations) were run until steady state solutions were reached. The results closely agreed with those obtained experimentally by San Andrés and Delgado. Numerical simulations of three-dimensional cases with an additional central groove on the squeeze film land were also performed to predict the effect of central groove on dynamic pressure profiles. Addition central groove reduces the pressures and forces generated by squeeze film damper.

Boppa, Praneetha

2011-08-01T23:59:59.000Z

174

Marine particle dynamics : sinking velocities, size distributions, fluxes, and microbial degradation rates  

E-Print Network (OSTI)

The sinking flux of particulate matter into the ocean interior is an oceanographic phenomenon that fuels much of the metabolic demand of the subsurface ocean and affects the distribution of carbon and other elements ...

McDonnell, Andrew M. P

2011-01-01T23:59:59.000Z

175

Dynamic Modeling of the Spatial Distribution of Precipitation in Remote Mountainous Areas  

Science Conference Proceedings (OSTI)

Precipitation in remote mountainous areas dominates the water balance of many water-short areas of the globe, such as western North America. The inaccessibility of such environments prevents adequate measurement of the spatial distribution of ...

Ana P. Barros; Dennis P. Lettenmaier

1993-04-01T23:59:59.000Z

176

Experimental study on Gaussian-modulated coherent states quantum key distribution over standard telecom fiber  

E-Print Network (OSTI)

In this paper, we present a fully fiber-based one-way Quantum Key Distribution (QKD) system implementing the Gaussian-Modulated Coherent States (GMCS) protocol. The system employs a double Mach-Zehnder Interferometer (MZI) configuration in which the weak quantum signal and the strong Local Oscillator (LO) go through the same fiber between Alice and Bob, and are separated into two paths inside Bob's terminal. To suppress the LO leakage into the signal path, which is an important contribution to the excess noise, we implemented a novel scheme combining polarization and frequency multiplexing, achieving an extinction ratio of 70dB. To further minimize the system excess noise due to phase drift of the double MZI, we propose that, instead of employing phase feedback control, one simply let Alice remap her data by performing a rotation operation. We further present noise analysis both theoretically and experimentally. Our calculation shows that the combined polarization and frequency multiplexing scheme can achieve better stability in practice than the time-multiplexing scheme, because it allows one to use matched fiber lengths for the signal and the LO paths on both sides of the double MZI, greatly reducing the phase instability caused by unmatched fiber lengths. Our experimental noise analysis quantifies the three main contributions to the excess noise, which will be instructive to future studies of the GMCS QKD systems. Finally, we demonstrate, under the "realistic model" in which Eve cannot control the system within Bob's terminal, a secure key rate of 0.3bit/pulse over a 5km fiber link. This key rate is about two orders of magnitude higher than that of a practical BB84 QKD system.

Bing Qi; Lei-Lei Huang; Li Qian; Hoi-Kwong Lo

2007-09-23T23:59:59.000Z

177

Molecular Dynamics Simulation of Smaller Granular Particles Deposition on a Larger One Due to Velocity Sequence Dependent Electrical Charge Distribution  

E-Print Network (OSTI)

Deposition of smaller granular particles on a larger nucleus particle has been simulated in two-dimension using molecular dynamics method. Variation of sequences of velocity of deposited particles is conducted and reported in this work. The sequences obey a normal distribution function of velocity with the same parameters. It has been observed that for velocity in range of 0 to 0.02 the densest deposited site (15-17 % number of grains) is located at about angle {\\pi}/4 where location of injection point is {\\pi}/4. And the less dense is about {\\pi}/4 + {\\pi}/2. Different sequences give similar result.

Euis Sustini; Siti Nurul Khotimah; Ferry Iskandar; Sparisoma Viridi

2011-07-11T23:59:59.000Z

178

DHAI: dynamic hierarchical agent-based infrastructure for supporting large-scale distributed information processing  

Science Conference Proceedings (OSTI)

The emergence of Internet, Intranet, local area networks, and ad hoc wireless networks introduces a plethora of new problems in information processing. In order to overcome these problems, we combine the Grid and P2P technologies, and propose a dynamic ...

Jinlong Wang; Congfu Xu; Huifeng Shen; Zhaohui Wu; Yunhe Pan

2005-08-01T23:59:59.000Z

179

Impact of Dynamic PHEVs Load on Renewable Sources based Distribution System  

E-Print Network (OSTI)

.Roy@student.adfa.edu.au Abstract--In this paper, charging effect of dynamic Plug in Hybrid Electric Vehicle (PHEV) is presented Plug in Hybrid Electrical Vehicles (PHEVs) can be a strong alternative to the conventional vehicle due to advances in bat- tery and hybrid-electric power technologies, coupled with the financial, energy security

Pota, Himanshu Roy

180

Dynamic Modeling of Aerobic Growth of Shewanella oneidensis. Predicting Triauxic Growth, Flux Distributions and Energy Requirement for Growth  

SciTech Connect

A model-based analysis is conducted to investigate metabolism of Shewanella oneidensis MR-1 strain in aerobic batch culture, which exhibits an intriguing growth pattern by sequentially consuming substrate (i.e., lactate) and by-products (i.e., pyruvate and acetate). A general protocol is presented for developing a detailed network-based dynamic model for S. oneidensis based on the Lumped Hybrid Cybernetic Model (LHCM) framework. The L-HCM, although developed from only limited data, is shown to accurately reproduce exacting dynamic metabolic shifts, and provide reasonable estimates of energy requirement for growth. Flux distributions in S. oneidensis predicted by the L-HCM compare very favorably with 13C-metabolic flux analysis results reported in the literature. Predictive accuracy is enhanced by incorporating measurements of only a few intracellular fluxes, in addition to extracellular metabolites. The L-HCM developed here for S. oneidensis is consequently a promising tool for the analysis of intracellular flux distribution and metabolic engineering.

Song, Hyun-Seob; Ramkrishna, Doraiswami; Pinchuk, Grigoriy E.; Beliaev, Alex S.; Konopka, Allan; Fredrickson, Jim K.

2013-01-01T23:59:59.000Z

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


181

An Adaptive Heuristic Approach to Service Selection Problems in Dynamic Distributed Systems  

Science Conference Proceedings (OSTI)

Quality-of-Service (QoS) aware service selectionproblems are a crucial issue in both Grids and distributed, service-oriented systems. When several implementations perservice exist, one has to be selected for each workflow step. Several heuristics have ... Keywords: Quality of Service, Service Selection, Genetic Algorithm, Blackboard

Peter Paul Beran; Elisabeth Vinek; Erich Schikuta; Maria Leitner

2012-09-01T23:59:59.000Z

182

Risk-based proactive availability management - attaining high performance and resilience with dynamic self-management in Enterprise Distributed Systems .  

E-Print Network (OSTI)

??Complex distributed systems such as distributed information flows systems which continuously acquire manipulate and disseminate information across an enterprise's distributed sites and machines, and distributed… (more)

Cai, Zhongtang

2008-01-01T23:59:59.000Z

183

State Research, Outreach, and Technical Assistance to Imrove the Nation's Transmission & Distribution System  

SciTech Connect

The broad purpose of this project was to work cooperatively with the DOE to explore technology nad policy issues associated with more efficient, reliable, and affordable electric transmission and distribution use.

J. Fox; M. Keogh; A. Spahn

2009-05-20T23:59:59.000Z

184

State Research, Outreach, and Technical Assistance to Imrove the Nation's Transmission & Distribution System  

SciTech Connect

The broad purpose of this project was to work cooperatively with the DOE to explore technology nad policy issues associated with more efficient, reliable, and affordable electric transmission and distribution use.

J. Fox; M. Keogh; A. Spahn

2009-05-20T23:59:59.000Z

185

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

with relatively high electricity prices, New York State haswith relatively high electricity prices, has also dealt withquite sensitive to electricity prices, and in the New York

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

186

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

Analysis Under the utility rates scales examined, standby75 Utility Ratein New York State G.2 Utility Rate Incentives Utility rates

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

187

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

polluting than large natural gas power plants with modernIn 2001, natural gas fired power plants in New York State

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

188

Steady-State Dynamics of a Density Current in an f-Plane Nonlinear Shallow-Water Model  

Science Conference Proceedings (OSTI)

The authors study the nonlinear dynamics of a density current generated by a diabatic source in a rotating and a nonrotating system, both in the presence and in the absence of frictional losses, using a steady-state hydrostatic shallow-water ...

Giovanni A. Dalu; Marina Baldi

2010-02-01T23:59:59.000Z

189

Coping with uncertain dynamics in visual tracking : redundant state models and discrete search methods  

E-Print Network (OSTI)

A model of the world dynamics is a vital part of any tracking algorithm. The observed world can exhibit multiple complex dynamics at different spatio-temporal scales. Faithfully modeling all motion constraints in a ...

Taycher, Leonid

2006-01-01T23:59:59.000Z

190

ROSA: Distributed Joint Routing and Dynamic Spectrum Allocation in Cognitive Radio Ad Hoc Networks  

E-Print Network (OSTI)

, State University of New York at Buffalo, Buffalo, NY 14260, USA § Air Force Research Laboratory, RIGE the utilization efficiency of the 1 This work was supported by the U.S. Air Force Research Labora- tory under­29, 2009, Tenerife, Canary Islands, Spain. Copyright 2009 ACM 978-1-60558-616-9/09/10 ...$10.00. existing

Melodia, Tommaso

191

Dynamic Bandwidth Management in Distributed VoD based on the User Class Using Agents  

E-Print Network (OSTI)

This paper proposes a dynamic bandwidth management algorithm in which more bandwidth is allocated for higher class users and also higher priority is given to the videos with higher popularity within a class using agent technology. The popularity and weight profile of the videos which is used for efficiently allocating bandwidth is periodically updated by a mobile agent. The proposed approach allocates more bandwidth for higher class users and gives higher priority for higher weight videos [popular videos] so that they can be served with high QoS, reduces the load on the central multimedia server and maximizes the channel utilization between the neighboring proxy servers and the central multimedia server and lower video rejection ratio. The simulation results prove the reduction of load on central multimedia server by load sharing among the neighboring proxy servers, maximum bandwidth utilization, and more bandwidth allocation for higher class users.

Guruprasad, H S

2009-01-01T23:59:59.000Z

192

Langevin molecular dynamics derived from Ehrenfest dynamics  

E-Print Network (OSTI)

Stochastic Langevin molecular dynamics for nuclei is derived from quantum classical molecular dynamics, also called Ehrenfest dynamics, at positive temperature, assuming that the molecular bulk system is in equilibrium and that the initial data for the electrons is stochastically perturbed from the ground state. The initial electron probability distribution is derived from the Liouville equilibrium solution generated by the nuclei acting as a heat bath for the electrons. The diffusion and friction coefficients in the Langevin equation satisfy Einstein's fluctuation-dissipation relation. The fluctuating initial data yields, in addition to the fluctuating diffusion terms, also a contribution to the drift, modifying the standard ab initio Born-Oppenheimer solution at zero temperature, where the electrons are in their ground state for the current nuclear configuration. The dissipative friction mechanism comes from the evolution of the electron ground state, due to slow dynamics of the nuclei, while the modified d...

Szepessy, Anders

2007-01-01T23:59:59.000Z

193

Some problems of dynamic distributional planning for petroleum distillates in Mexico  

Science Conference Proceedings (OSTI)

This dissertation focuses on the development of mathematical models that may aid in the strategic planning of distributional operations of petroleum distillates in countries such as Mexico, where these operations are very complex involving multiple time periods, multiple commodities, several means of transportation, and uncertain demands. A new mathematical instrument for policy analysis of the west coast tanker distributional operations of Pemex regarding gasoline and diesel fuels is developed in terms of goal-interval programming formulations. Taking advantage of the special structure of these multiperiod-multicommodity formulations that would otherwise be mixed-integer programming problems, new special linear programming structures are devised which achieve integrality at extreme point solutions. This permits assessment of incremental policy changes in terms of the usual dual variables, a significant advantage. The extension of policy planning to other regions of the country, a secondary problem, is begun with a framework of modeling which comprehends inter-regional transfers. Future research will develop the corresponding intra-regional policy tools.

Gomez Lopez, J.A.

1986-01-01T23:59:59.000Z

194

The Geographical Distribution and Seasonality of Persistence in Monthly Mean Air Temperatures over the United States  

Science Conference Proceedings (OSTI)

Eighty years of monthly mean station temperatures are used to evaluate the persistence of monthly air temperature anomalies over the United States. The geographical and seasonal dependence of the monthly persistence are described in term of the ...

H. M. van den Dool; W. H. Klein; J. E. Walsh

1986-03-01T23:59:59.000Z

195

Precipitation Distribution Associated with Landfalling Tropical Cyclones over the Eastern United States  

Science Conference Proceedings (OSTI)

Tropical cyclones (TCs) making landfall over the United States are examined by separating those associated with precipitation predominantly left of their tracks from those with the same to the right of their tracks. Composites of atmospheric ...

Eyad Atallah; Lance F. Bosart; Anantha R. Aiyyer

2007-06-01T23:59:59.000Z

196

Mixture Distributions and the Hydroclimatology of Extreme Rainfall and Flooding in the Eastern United States  

Science Conference Proceedings (OSTI)

Flooding in the eastern United States reflects a mixture of flood-generating mechanisms, with landfalling tropical cyclones and extratropical systems playing central roles. The authors examine the climatology of heavy rainfall and flood ...

James A. Smith; Gabriele Villarini; Mary Lynn Baeck

2011-04-01T23:59:59.000Z

197

Reconciling the Spatial Distribution of the Surface Temperature Trends in the Southeastern United States  

Science Conference Proceedings (OSTI)

This study attempts to explain the considerable spatial heterogeneity in the observed linear trends of monthly mean maximum and minimum temperatures (Tmax and Tmin) from station observations in the southeastern (SE) United States (specifically ...

V. Misra; J.-P. Michael; R. Boyles; E. P. Chassignet; M. Griffin; J. J. O’Brien

2012-05-01T23:59:59.000Z

198

Strategic Sequencing for State Distributed PV Policies: Program Overviews (Fact Sheet)  

Science Conference Proceedings (OSTI)

A fact sheet describing a new analysis report that aims to help state officials and policymakers expand markets for solar technologies and ultimately reduce the cost of installed solar nationwide.

Not Available

2012-11-01T23:59:59.000Z

199

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

York State gy Utility Electricity Bill ($/a) no inv. inv.kW) (kW) ($/a) Utility Electricity Bill Uitlity Natural Gasdown into utility electricity bills, utility natural gas

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

200

Properly Understanding the Impacts of Distributed Resources on Distribution Systems  

Science Conference Proceedings (OSTI)

The subject paper discusses important impacts of distributed resources on distribution networks and feeders. These include capacity, line losses, voltage regulation, and central system support (such as volt/var via central generators and substation) as the number, placement and penetration levels of distributed resources are varied. Typically, the impacts of distributed resources on the distribution system are studied by using steady-state rather than dynamic analysis tools. However, the response time and transient impacts of both system equipment (such as substation/feeder capacitors) and distributed resources needs to be taken into account and only dynamic analysis will provide the full impact results. ORNL is wrapping up a study of distributed resources interconnected to a large distribution system considering the above variables. A report of the study and its results will be condensed into a paper for this panel session. The impact of distributed resources will vary as the penetration level reaches the capacity of the distribution feeder/system. The question is how high of a penetration of distributed resource can be accommodated on the distribution feeder/system without any major changes to system operation, design and protection. The impacts most surely will vary depending upon load composition, distribution and level. Also, it is expected that various placement of distributed resources will impact the distribution system differently.

Rizy, D Tom [ORNL; Li, Fangxing [ORNL; Li, Huijuan [University of Tennessee, Knoxville (UTK); Adhikari, Sarina [ORNL; Kueck, John D [ORNL

2010-01-01T23:59:59.000Z

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


201

Agent-based distributed manufacturing control: A state-of-the-art survey  

Science Conference Proceedings (OSTI)

Manufacturing has faced significant changes during the last years, namely the move from a local economy towards a global and competitive economy, with markets demanding for highly customized products of high quality at lower costs, and with short life ... Keywords: Distributed manufacturing control, Holonic manufacturing systems, Intelligent manufacturing systems, Multi-agent systems

Paulo Leitão

2009-10-01T23:59:59.000Z

202

Exploiting high-level coherence information to optimize distributed shared state  

Science Conference Proceedings (OSTI)

InterWeave is a distributed middleware system that supports the sharing of strongly typed, pointer-rich data structures across a wide variety of hardware architectures, operating systems, and programming languages. As a complement to RPC/RMI, InterWeave ...

DeQing Chen; Chunqiang Tang; Brandon Sanders; Sandhya Dwarkadas; Michael L. Scott

2003-06-01T23:59:59.000Z

203

State-of-the-Art Assessment of Polymer Electrolyte Membrane Fuel Cells for Distributed Power Applications  

Science Conference Proceedings (OSTI)

Low-temperature polymer electrolyte membrane fuel cell technology targeted for transportation markets has been rapidly advancing the past few years. This technology represents a potentially strategic retail access technology that could be useful in a variety of utility, commercial, and residential distributed power and retail energy service applications.

1997-01-08T23:59:59.000Z

204

A study of seismology as a dynamic, distributed area of scientific research  

E-Print Network (OSTI)

Seismology has several features that suggest it is a highly internationalized field: the subject matter is global, the tools used to analyse seismic waves are dependent upon information technologies, and governments are interested in funding cooperative research. We explore whether an emerging field like seismology has a more internationalised structure than the older, related field of geophysics. Using aggregated journal-journal citations, we first show that, within the citing environment, seismology emerged from within geophysics as its own field in the 1990s. The bibliographic analysis, however, does not show that seismology is more internationalised than geophysics: in 2000, seismology had a lower percentage of all articles co-authored on an international basis. Nevertheless, social network analysis shows that the core group of cooperating countries within seismology is proportionately larger and more distributed than that within geophysics. While the latter exhibits an established network with a hierarch...

Wagner, Caroline S

2009-01-01T23:59:59.000Z

205

The Effect of Shear Wall Distribution on the Dynamics of Reinforced Concrete Structures  

Science Conference Proceedings (OSTI)

The inclusion of a soft storey in multistory concrete buildings is a feature gaining popularity in urban areas where land is of exorbitant cost. In earthquake prone zones, this feature has been observed in post earthquake investigations. Although engineers are prepared to accept the notion that a soft storey poses a weak link in Seismic Design, yet the idea demands better understanding. The following study illustrates the importance of the judicious distribution of shear walls. The selected building is analyzed through nine numerical models which address the behavior of framed structures. The parameters discussed include, inter alias, the fundamental period of vibration, lateral displacements, axial and shear forces. It is noticed that an abrupt change in stiffness between the soft storey and the level above is responsible for increasing the strength demand on first storey columns. Extending the elevator shafts throughout the soft storey is strongly recommended.

Helou, S. H.; Touqan, A. R. [Civil Engineering Department, An-Najah National University, Nablus-Palestine (Country Unknown)

2008-07-08T23:59:59.000Z

206

Functional and shunt states of bacteriorhodopsin resolved by 250 GHz dynamic nuclear polarization-enhanced solid-state NMR  

E-Print Network (OSTI)

Observation and structural studies of reaction intermediates of proteins are challenging because of the mixtures of states usually present at low concentrations. Here, we use a 250 GHz gyrotron (cyclotron resonance maser) ...

Bajaj, Vikram S.

207

Dynamic Heat Flow Measurements to Study the Distribution of Phase-Change Material in an Insulation Matrix  

DOE Green Energy (OSTI)

Phase change materials (PCMs) are used in building envelopes in many forms. The PCMs may be encased in discrete pouches or containers, or they may be distributed within another medium, such as in a board or within a loose fill product. In addition, most PCM products are blends containing fire retardants and chemical stabilizers. However, the current test method to measure the dynamic characteristics of PCMs, the differential scanning calorimeter (DSC), requires specimens that are relatively uniform and very small. Considering the limitations of DSC test results when applied to more complex PCM building envelope applications, we developed a combined experimental analytical protocol to determine the amount of phase-change energy actually available to provide thermal storage. This paper presents this new methodology for performing dynamic heat flow analysis of complex PCM-enhanced building materials. The experimental analytical protocol uses a conventional heat-flow apparatus and three-dimensional (3-D), finite-difference modeling. Based upon results from this methodology, ORNL researchers developed a simplified one-dimensional (1-D) model that can be easily used in whole-building simulations. This paper describes this methodology as applied to an insulation assembly containing a complex array of PCM pouches.

Kosny, Jan [ORNL; Stovall, Therese K [ORNL; Yarbrough, David W [ORNL

2010-01-01T23:59:59.000Z

208

Solid-State Dynamic Nuclear Polarization at 263 GHz: Spectrometer Design and Experimental Results  

E-Print Network (OSTI)

Dynamic Nuclear Polarization (DNP) experiments transfer polarization from electron spins to nuclear spins with microwave irradiation of the electron spins for enhanced sensitivity in nuclear magnetic resonance (NMR) ...

Rosay, Melanie

209

Evolutionary Dynamic Optimization: A Survey of the State of the Art  

E-Print Network (OSTI)

May 24, 2012 ... Evolutionary computation and swarm intelligence are good tools to address optimization problems in dynamic environments due to their ...

210

MASSIVE QUIESCENT CORES IN ORION: DYNAMICAL STATE REVEALED BY HIGH-RESOLUTION AMMONIA MAPS  

SciTech Connect

We present combined Very Large Array and Green Bank Telescope images of NH{sub 3} inversion transitions (1, 1) and (2, 2) toward OMC2 and OMC3. We focus on the relatively quiescent Orion cores, which are away from the Trapezium cluster and have no sign of massive protostars or evolved star formation. The 5'' angular resolution and 0.6 km s{sup -1} velocity resolution enable us to study the thermal and dynamic state of these cores at {approx}0.02 pc scales, comparable to or smaller than those of the current dust continuum surveys. We measure temperatures for a total of 30 cores, with average masses of 11 M{sub Sun }, radii of 0.039 pc, virial mass ratio R{sub vir}-bar = 3.9, and critical mass ratio R{sub C}-bar = 1.5. Twelve sources contain Spitzer protostars. The thus defined starless and protostellar subsamples have similar temperature, line width, but different masses, with an average of 7.3 M{sub Sun} for the former and 16 M{sub Sun} for the latter. Compared to other Gould Belt dense cores, more Orion cores have a high gravitational-to-kinetic energy ratio and more cores have a larger than unity critical mass ratio. Orion dense cores have velocity dispersions similar to those of cores in low-mass star-forming regions but larger masses for given size. Some cores appear to have truly supercritical gravitational-to-kinetic energy ratios, even when considering significant observational uncertainties: thermal and non-thermal gas motions alone cannot prevent collapse.

Li, D. [National Astronomical Observatories, Chinese Academy of Science, Chaoyang District Datun Rd A20, Beijing (China); Kauffmann, J. [Department of Astronomy, California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125 (United States); Zhang, Q. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States); Chen, W., E-mail: ithaca.li@gmail.com [Peking University, Beijing (China)

2013-05-01T23:59:59.000Z

211

Modified Nose-Hoover thermostat for solid state for constant temperature molecular dynamics simulation  

SciTech Connect

Nose-Hoover (NH) thermostat methods incorporated with molecular dynamics (MD) simulation have been widely used to simulate the instantaneous system temperature and feedback energy in a canonical ensemble. The method simply relates the kinetic energy to the system temperature via the particles' momenta based on the ideal gas law. However, when used in a tightly bound system such as solids, the method may suffer from deriving a lower system temperature and potentially inducing early breaking of atomic bonds at relatively high temperature due to the neglect of the effect of the potential energy of atoms based on solid state physics. In this paper, a modified NH thermostat method is proposed for solid system. The method takes into account the contribution of phonons by virtue of the vibrational energy of lattice and the zero-point energy, derived based on the Debye theory. Proof of the equivalence of the method and the canonical ensemble is first made. The modified NH thermostat is tested on different gold nanocrystals to characterize their melting point and constant volume specific heat, and also their size and temperature dependence. Results show that the modified NH method can give much more comparable results to both the literature experimental and theoretical data than the standard NH. Most importantly, the present model is the only one, among the six thermostat algorithms under comparison, that can accurately reproduce the experimental data and also the T{sup 3}-law at temperature below the Debye temperature, where the specific heat of a solid at constant volume is proportional to the cube of temperature.

Chen, Wen-Hwa, E-mail: whchen@pme.nthu.edu.tw [Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan (China); National Applied Research Laboratories, Taipei 10622, Taiwan, ROC (China); Wu, Chun-Hung [Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Cheng, Hsien-Chie [Department of Aerospace and Systems Engineering, Feng Chia University, Taichung 40724, Taiwan (China)

2011-07-10T23:59:59.000Z

212

Table lamp with dynamically controlled lighting distribution and uniformly illuminated luminous shade  

DOE Patents (OSTI)

A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) or other lamps arranged vertically, i.e. one lamp above the other, with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down lighting is produced. The control system can also vary the light intensity from each CFL. The reflective septum ensures that almost all the light produced by each lamp will be directed into the desired light distribution pattern which is selected and easily changed by the user. In a particular configuration, the reflective septum is bowl shaped, with the upper CFL sitting in the bowl, and a luminous shade hanging down from the bowl. The lower CFL provides both task lighting and uniform shade luminance. Planar compact fluorescent lamps, e.g. circular CFLs, particularly oriented horizontally, are preferable. CFLs provide energy efficiency. However, other types of lamps, including incandescent, halogen, and LEDs can also be used in the fixture. The lighting system may be designed for the home, hospitality, office or other environments.

Siminovitch, Michael J. (Pinole, CA); Page, Erik R. (Berkeley, CA)

2002-01-01T23:59:59.000Z

213

Domestic and Foreign Distribution of U.S. Coal by State of Origin, 2001  

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

1 " 1 " "State / Region ","Domestic ","Foreign ","Total "," " "Alabama ",14828,4508,19336," " "Alaska ",825,698,1524," " "Arizona ",13143,"-",13143," " "Arkansas ",13,"-",13," " "Colorado ",32427,894,33321," " "Illinois ",33997,285,34283," " "Indiana ",36714,"-",36714," " "Kansas ",176,"-",176," " "Kentucky Total ",131546,2821,134367," " " East ",107000,2707,109706," " " West ",24547,114,24660," " "Louisiana ",3746,"-",3746," "

214

Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Destination  

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

2 2 (Thousand Short Tons) " " Coal-Exporting State and Destination ",,"Metallurgical ","Steam ","Total "," " "Alabama ",,3977,"-",3977," " ," Argentina ",225,"-",225," " ," Belgium ",437,"-",437," " ," Brazil ",1468,"-",1468," " ," Bulgaria ",75,"-",75," " ," Egypt ",363,"-",363," " ," Germany ",71,"-",71," " ," Italy ",61,"-",61," " ," Netherlands ",219,"-",219," " ," Spain ",415,"-",415," " ," Turkey ",362,"-",362," "

215

Sensory experience modifies spontaneous state dynamics in a large-scale barrel cortical model  

Science Conference Proceedings (OSTI)

Experimental evidence suggests that spontaneous neuronal activity may shape and be shaped by sensory experience. However, we lack information on how sensory experience modulates the underlying synaptic dynamics and how such modulation influences the ... Keywords: Barrel cortex, Large-scale model, STDP, Spontaneous dynamics

Elena Phoka; Mark Wildie; Simon R. Schultz; Mauricio Barahona

2012-10-01T23:59:59.000Z

216

Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Destination  

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

3" 3" "(Thousand Short Tons)" "Coal-Exporting State and Destination ",,"Metallurgical ","Steam ","Total " "Alabama ",,5156,"-",5156 ,"Argentina ",345,"-",345 ,"Belgium ",387,"-",387 ,"Brazil ",1825,"-",1825 ,"Bulgaria ",363,"-",363 ,"Egypt ",477,"-",477 ,"Germany ",167,"-",167 ,"Italy ",87,"-",87 ,"Netherlands ",399,"-",399 ,"Spain ",198,"-",198 ,"Turkey ",551,"-",551 ,"United Kingdom ",359,"-",359 "Kentucky ",,1449,"-",1449 ,"Canada ",566,"-",566

217

Domestic and Foreign Distribution of U.S. Coal by State of Origin, 2004  

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

4 4 (Thousand Short Tons) " "State / Region ","Domestic ","Foreign ","Total "," " "Alabama",18367,3744,22111," " "Alaska",957,546,1502," " "Arizona",13041,"-",13041," " "Colorado",37396,1239,38635," " "Illinois ",30611,440,31051," " "Indiana",34630,227,34857," " "Kansas",72,"-",72," " "Kentucky Total ",109413,3004,112417," " " Eastern ",87402,2816,90218," " " Western ",22011,188,22199," " "Louisiana",3889,"-",3889," " "Maryland",4502,1068,5571," "

218

Domestic and Foreign Distribution of U.S. Coal by State of Origin, 2002  

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

2 2 (Thousand Short Tons)" " State / Region"," Domestic"," Foreign"," Total " "Alabama ",15552,3425,18977," " "Alaska ",847,311,1158," " "Arizona ",12971,"-",12971," " "Arkansas ",12,"-",12," " "Colorado ",33904,843,34748," " "Illinois ",32719,21,32740," " "Indiana ",35391,"-",35391," " "Kansas ",205,"-",205," " "Kentucky Total ",123129,791,123920," " " East ",98492,791,99284," " " West ",24636,"-",24636," " "Louisiana ",3810,"-",3810," "

219

Domestic and Foreign Distribution of U.S. Coal by State of Origin, 2003  

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

3 " 3 " "(Thousand Short Tons) " "State / Region ","Domestic","Foreign","Total" "Alabama ",16639,3902,20541 "Alaska ",856,232,1088 "Arizona ",12093,"-",12093 "Arkansas ",6,"-",6 "Colorado ",34997,898,35895 "Illinois ",31751,55,31806 "Indiana ",35350,"-",35350 "Kansas ",154,"-",154 "Kentucky Total ",113241,906,114146 "East ",92391,890,93282 "West ",20849,15,20865 "Louisiana ",3959,"-",3959 "Maryland ",4955,596,5551 "Mississippi ",3739,"-",3739 "Missouri ",345,"-",345 "Montana ",36181,541,36721

220

The Seasonal Cycle of Interannual Variability and the Dynamical Imprint of the Seasonally Varying Mean State  

Science Conference Proceedings (OSTI)

Various aspects of the seasonal cycle of interannual variability of the observed 300-hPa streamfunction are documented and related to dynamical influences of the seasonality of the mean circulation. The stochastically excited nondivergent ...

Grant Branstator; Jorgen Frederiksen

2003-07-01T23:59:59.000Z

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


221

High-resolution high-frequency dynamic nuclear polarization for biomolecular solid state NMR  

E-Print Network (OSTI)

Dynamic Nuclear Polarization (DNP) has exploded in popularity over the last few years, finally realizing its potential to overcome the detrimental lack of sensitivity that has plagued performing NMR experiments. Applied ...

Barnes, Alexander B. (Alexander Benjamin)

2011-01-01T23:59:59.000Z

222

State  

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

Biodiesel Producers and Production Capacity by State, September 2013 Biodiesel Producers and Production Capacity by State, September 2013 State Number of Producers Annual Production Capacity (million gallons per year) Alabama 3 47 Alaska - - Arizona 1 2 Arkansas 3 85 California

223

Dynamics  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydration Hydration Water on Rutile Studied by Backscattering Neutron Spectroscopy and Molecular Dynamics Simulation E. Mamontov,* ,† D. J. Wesolowski, ‡ L. Vlcek, § P. T. Cummings, §,| J. Rosenqvist, ‡ W. Wang, ⊥ and D. R. Cole ‡ Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6473, Chemical Sciences DiVision, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6110, Department of Chemical Engineering, Vanderbilt UniVersity, NashVille, Tennessee 37235-1604, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6496, and EnVironmental Sciences DiVision, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6036 ReceiVed: December 20, 2007; ReVised Manuscript ReceiVed: June 4, 2008 The high energy resolution, coupled with the wide dynamic range, of the new backscattering

224

state  

Science Conference Proceedings (OSTI)

NIST. state. (definition). Definition: The condition of a finite state machine or Turing machine at a certain time. Informally, the content of memory. ...

2013-11-08T23:59:59.000Z

225

Particles in the Lower Troposphere over the High Plains of the United States. Part I: Size Distributions, Elemental Compositions and Morphologies  

Science Conference Proceedings (OSTI)

Airborne measurements are presented of particle size distributions obtained during spring and summer at various locations in the High Plains of the United States. Two main particle modes are apparent: an accumulation mode between particle ...

Peter V. Hobbs; David A. Bowdle; Lawrence F. Radke

1985-12-01T23:59:59.000Z

226

State  

Science Conference Proceedings (OSTI)

State NIST. Weights and Measures. Laboratories. Program Handbook. NIST Handbook 143. March 2003. Preface. The National ...

2010-11-30T23:59:59.000Z

227

Distribution of Mutual Information  

E-Print Network (OSTI)

In the analysis of time series from nonlinear sources, mutual information (MI) is used as a nonlinear statistical criterion for the selection of an appropriate time delay in time delay reconstruction of the state space. MI is a statistic over the sets of sequences associated with the dynamical source, and we examine here the distribution of MI, thus going beyond the familiar analysis of its average alone. We give for the first time the distribution of MI for a standard, classical communications channel with Gaussian, additive white noise. For time series analysis of a dynamical system, we show how to determine the distribution of MI and discuss the implications for the use of average mutual information (AMI) in selecting time delays in phase space reconstruction.

Henry D. I. Abarbanel; Naoki Masuda; M. I. Rabinovich; Evren Tumer

2000-11-09T23:59:59.000Z

228

Distributed computational fluid dynamics  

E-Print Network (OSTI)

that arises in these practical turbulent combustion pro- cesses is a strong coupling between turbulence, chemical kinetics and heat release. These interactions are generally three dimensional and time de- pendent, and are not easily accessible to experimental... and at university and national level by very large massively-parallel supercomputers. Therefore, CFD offers a major opportunity for the development and application of Grid technology in engineering and forms the motivation for the present study. A difficulty...

Jenkins, K; Yang, Xiaobo; Hayes, Mark; Cant, Stewart R

2008-06-26T23:59:59.000Z

229

Improving Steady-State Fit of Dynamics to Data Using Adjoint Equation for Gradient Preconditioning  

Science Conference Proceedings (OSTI)

The steady-state fit of Arakawa and Lamb's shallow-water equation model to time-mean sea surface height (SSH) has been examined, seeking better performance of the steady-state fit without requiring longer time integrations. It is shown that the ...

Jieping Zou; Greg Holloway

1995-01-01T23:59:59.000Z

230

Performance of a Dynamically Controlled Inverter in a Photovoltaic System Interconnected with a Secondary Network Distribution System  

DOE Green Energy (OSTI)

In 2008, a 300 kW{sub peak} photovoltaic (PV) system was installed on the rooftop of the Colorado Convention Center (CCC). The installation was unique for the electric utility, Xcel Energy, as it had not previously permitted a PV system to be interconnected on a building served by the local secondary network distribution system (network). The PV system was installed with several provisions; one to prevent reverse power flow, another called a dynamically controlled inverter (DCI), that curtails the output of the PV inverters to maintain an amount of load supplied by Xcel Energy at the CCC. The DCI system utilizes current transformers (CTs) to sense power flow to insure that a minimum threshold is maintained from Xcel Energy through the network transformers. The inverters are set to track the load on each of the three phases and curtail power from the PV system when the generated PV system current reaches 95% of the current on any phase. This is achieved by the DCI, which gathers inputs from current transformers measuring the current from the PV array, Xcel, and the spot network load. Preventing reverse power flow is a critical technical requirement for the spot network which serve this part of the CCC. The PV system was designed with the expectation that the DCI system would not curtail the PV system, as the expected minimum load consumption was historically higher than the designed PV system size. However, the DCI system has operated many days during the course of a year, and the performance has been excellent. The DCI system at the CCC was installed as a secondary measure to insure that a minimum level of power flows to the CCC from the Xcel Energy network. While this DCI system was intended for localized control, the system could also reduce output percent if an external smart grid control signal was employed. This paper specifically focuses on the performance of the innovative design at this installation; however, the DCI system could also be used for new s- art grid-enabled distribution systems where renewables power contributions at certain conditions or times may need to be curtailed.

Coddington, M. H.; Kroposki, B. D.; Basso, T.; Berger, D.; Crowell, K.; Hayes, J.

2011-01-01T23:59:59.000Z

231

Buckled nano rod - a two state system: quantum effects on its dynamics  

E-Print Network (OSTI)

We consider a suspended elastic rod under longitudinal compression. The compression can be used to adjust potential energy for transverse displacements from harmonic to double well regime. The two minima in potential energy curve describe two possible buckled states. Using transition state theory (TST) we have calculated the rate of conversion from one state to other. If the strain $\\epsilon = 4 \\epsilon_c$ the simple TST rate diverges. We suggest a method to correct this divergence for quantum calculations. We also find that zero point energy contributions can be quite large so that single mode calculations can lead to large errors in the rate.

Chakraborty, Aniruddha

2011-01-01T23:59:59.000Z

232

Buckled nano rod - a two state system: quantum effects on its dynamics  

E-Print Network (OSTI)

We consider a suspended elastic rod under longitudinal compression. The compression can be used to adjust potential energy for transverse displacements from harmonic to double well regime. The two minima in potential energy curve describe two possible buckled states. Using transition state theory (TST) we have calculated the rate of conversion from one state to other. If the strain $\\epsilon = 4 \\epsilon_c$ the simple TST rate diverges. We suggest a method to correct this divergence for quantum calculations. We also find that zero point energy contributions can be quite large so that single mode calculations can lead to large errors in the rate.

Aniruddha Chakraborty

2011-07-18T23:59:59.000Z

233

Direct probing of electronic density distribution of a Rydberg state by high-order harmonic generation in a few-cycle laser pulse  

Science Conference Proceedings (OSTI)

We demonstrate that the electronic density distribution of a Rydberg state can be probed directly using a broadband harmonic spectrum in a few-cycle laser pulse. Taking advantage of the large orbital radius of a Rydberg state, we show that the Rydberg electron can be accelerated directly toward the core under the influence of a few-cycle laser pulse, leading to recombination and emission of harmonic photons. In this case the initial position of the electron and the harmonic order form a one-to-one correspondence, resulting in a realization of direct probing of the density distribution of the initial Rydberg state.

Zhai Zhen; Fu Panming; Wang Bingbing [Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Chen Jing [Center for Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China); Yan Zongchao [Department of Physics, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick E3B 5A3 (Canada)

2010-10-15T23:59:59.000Z

234

System-environment dynamics of X-type states in noninertial frames  

E-Print Network (OSTI)

The system-environment dynamics of noninertial systems is investigated. It is shown that for the amplitude damping channel: (i) the biggest difference between the decoherence effect and the Unruh radiation on the dynamics of the entanglement is the former only leads to entanglement transfer in the whole system, but the latter damages all types of entanglement; (ii) the system-environment entanglement increases and then declines, while the environment-environment entanglement always increases as the decay parameter $p$ increases; and (iii) the thermal fields generated by the Unruh effect can promote the sudden death of entanglement between the subsystems while postpone the sudden birth of entanglement between the environments. It is also found that there is no system-environment and environment-environment entanglements when the system coupled with the phase damping environment.

Jieci Wang; Jiliang Jing

2011-05-06T23:59:59.000Z

235

The development of short sea shipping in the United States : a dynamic alternative  

E-Print Network (OSTI)

Current projections show that U.S. international trade is expected to reach nearly two billion tons by 2020, approximately double today's level. With such a large forecasted growth in trade coming through the United States ...

Connor, Peter H. (Peter Harold)

2004-01-01T23:59:59.000Z

236

Dynamic-Model-Based Seasonal Prediction of Meteorological Drought over the Contiguous United States  

Science Conference Proceedings (OSTI)

A simple method was developed to forecast 3- and 6-month standardized precipitation indices (SPIs) for the prediction of meteorological drought over the contiguous United States based on precipitation seasonal forecasts from the NCEP Climate ...

Jin-Ho Yoon; Kingtse Mo; Eric F. Wood

2012-04-01T23:59:59.000Z

237

Using System Dynamics to Model the Transition to Biofuels in the United States: Preprint  

DOE Green Energy (OSTI)

Transitioning to a biofuels industry that is expected to displace about 30% of current U.S. gasoline consumption requires a robust biomass-to-biofuels system-of-systems that operates in concert with the existing markets. This paper discusses employing a system dynamics approach to investigate potential market penetration scenarios for cellulosic ethanol and to help government decision makers focus on areas with greatest potential.

Bush, B.; Duffy, M.; Sandor, D.; Peterson, S.

2008-06-01T23:59:59.000Z

238

Buckled nano rod - a two state system and its dynamics using system plus reservoir model  

E-Print Network (OSTI)

We consider a suspended elastic rod under longitudinal compression. The compression can be used to adjust potential energy for transverse displacements from harmonic to double well regime. As compressional strain is increased to the buckling instability, the frequency of fundamental vibrational mode drops continuously to zero (first buckling instability). As one tunes the separation between ends of a rod, the system remains stable beyond the instability and develops a double well potential for transverse motion. The two minima in potential energy curve describe two possible buckled states at a particular strain. From one buckled state it can go over to the other by thermal fluctuations or quantum tunnelling. Using a continuum approach and transition state theory (TST) one can calculate the rate of conversion from one state to other. Saddle point for the change from one state to other is the straight rod configuration. The rate, however, diverges at the second buckling instability. At this point, the straight rod configuration, which was a saddle till then, becomes hill top and two new saddles are generated. The new saddles have bent configurations and as rod goes through further instabilities, they remain stable and the rate calculated according to harmonic approximation around saddle point remains finite. In our earlier paper classical rate calculation including friction has been carried out [J. Comput. Theor. Nanosci. {\\bf 4} (2007) {\\it 1}], by assuming that each segment of the rod is coupled to its own collection of harmonic oscillators - our rate expression is well behaved through the second buckling instability. In this paper we have extended our method to calculate quantum rate using the same system plus reservoir model. We find that friction lowers the rate of conversion.

Aniruddha Chakraborty

2009-12-09T23:59:59.000Z

239

Using System Dynamics to Model the Transition to Biofuels in the United States  

DOE Green Energy (OSTI)

Today, the U.S. consumes almost 21 million barrels of crude oil per day; approximately 60% of the U.S. demand is supplied by imports. The transportation sector alone accounts for two-thirds of U.S. petroleum use. Biofuels, liquid fuels produced from domestically-grown biomass, have the potential to displace about 30% of current U.S. gasoline consumption. Transitioning to a biofuels industry on this scale will require the creation of a robust biomass-to-biofuels system-of-systems that operates in concert with the existing agriculture, forestry, energy, and transportation markets. The U.S. Department of Energy is employing a system dynamics approach to investigate potential market penetration scenarios for cellulosic ethanol, and to aid decision makers in focusing government actions on the areas with greatest potential to accelerate the deployment of biofuels and ultimately reduce the nationpsilas dependence on imported oil.

Bush, B.; Duffy, M.; Sandor, D.; Peterson, S.

2008-01-01T23:59:59.000Z

240

How to implement decoy-state quantum key distribution for a satellite uplink with 50-dB channel loss  

SciTech Connect

Quantum key distribution (QKD) takes advantage of fundamental properties of quantum physics to allow two distant parties to share a secret key; however, QKD is hampered by a distance limitation of a few hundred kilometers on Earth. The most immediate solution for global coverage is to use a satellite, which can receive separate QKD transmissions from two or more ground stations and act as a trusted node to link these ground stations. In this article we report on a system capable of performing QKD in the high loss regime expected in an uplink to a satellite using weak coherent pulses and decoy states. Such a scenario profits from the simplicity of its receiver payload, but has so far been considered to be infeasible due to very high transmission losses (40-50 dB). The high loss is overcome by implementing an innovative photon source and advanced timing analysis. Our system handles up to 57 dB photon loss in the infinite key limit, confirming the viability of the satellite uplink scenario. We emphasize that while this system was designed with a satellite uplink in mind, it could just as easily overcome high losses on any free space QKD link.

Meyer-Scott, Evan; Yan, Zhizhong; MacDonald, Allison; Bourgoin, Jean-Philippe; Huebel, Hannes; Jennewein, Thomas [Institute for Quantum Computing, University of Waterloo, 200 University Avenue W, Waterloo ON, Canada N2L 3G1 (Canada)

2011-12-15T23:59:59.000Z

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


241

How to implement decoy-state quantum key distribution for a satellite uplink with 50 dB channel loss  

E-Print Network (OSTI)

Quantum key distribution (QKD) takes advantage of fundamental properties of quantum physics to allow two distant parties to share a secret key; however, QKD is hampered by a distance limitation of a few hundred kilometers on earth. The most immediate solution for global coverage is to use a satellite, which can receive separate QKD transmissions from two or more ground stations and act as a trusted node to link these ground stations. In this article, we report a system capable of performing QKD in the high loss regime expected in an uplink to a satellite using weak coherent pulses and decoy states. Such a scenario profits from the simplicity of its receiver payload, but has so far considered to be infeasible due to very high transmission losses (40 - 50 dB). The high loss is overcome by implementing an innovative photon source and advanced timing analysis. Our system handles up to 57 dB photon loss in the infinite key limit, confirming the viability of the satellite uplink scenario. We emphasize that while this system was designed with a satellite uplink in mind, it could just as easily overcome high losses on any free space QKD link.

Evan Meyer-Scott; Zhizhong Yan; Allison MacDonald; Jean-Philippe Bourgoin; Hannes Hübel; Thomas Jennewein

2011-11-03T23:59:59.000Z

242

A Spatially Distributed Model to Simulate Water, Energy, and Vegetation Dynamics Using Information from Regional Climate Models  

Science Conference Proceedings (OSTI)

Studies seeking to understand the impacts of climate variability and change on the hydrology of a region need to take into account the dynamics of vegetation and its interaction with the hydrologic and energy cycles. Yet, most of the hydrologic ...

M. P. Maneta; N. L. Silverman

2013-08-01T23:59:59.000Z

243

A spatially-distributed model to simulate water, energy and vegetation dynamics using information from regional climate models  

Science Conference Proceedings (OSTI)

Because of the strong interaction between vegetation and the terrestrial phase of the hydrologic cycle, the dynamics of vegetation needs to be taken into account in any study seeking to understand the impacts of management or changing atmospheric ...

M. P. Maneta; N. Silverman

244

Resonant terahertz radiation from layered superconductors: mechanisms of damping and structure of dynamic states.  

SciTech Connect

Intrinsic Josephson-junction stacks realized in high-temperature superconductors may generate powerful electromagnetic radiation in terahertz frequency range. A major challenge is to synchronize phase oscillations in many junctions. A promising way of efficient synchronization is to excite an internal cavity mode, with the frequency set by the stack lateral size. We discuss several issues relevant for this mechanism: (i) damping of the resonance mode due to radiation into free space and into the base crystal, (ii) mechanisms of coupling to the internal mode, (iii) structures and stability of coherent states.

Koshelev, A. E.; Bulaevskii, L. N.; Materials Science Division; LANL

2009-01-01T23:59:59.000Z

245

SALT (System Analysis Language Translater): A steady state and dynamic systems code  

DOE Green Energy (OSTI)

SALT (System Analysis Language Translater) is a lumped parameter approach to system analysis which is totally modular. The modules are all precompiled and only the main program, which is generated by SALT, needs to be compiled for each unique system configuration. This is a departure from other lumped parameter codes where all models are written by MACROS and then compiled for each unique configuration, usually after all of the models are lumped together and sorted to eliminate undetermined variables. The SALT code contains a robust and sophisticated steady-sate finder (non-linear equation solver), optimization capability and enhanced GEAR integration scheme which makes use of sparsity and algebraic constraints. The SALT systems code has been used for various technologies. The code was originally developed for open-cycle magnetohydrodynamic (MHD) systems. It was easily extended to liquid metal MHD systems by simply adding the appropriate models and property libraries. Similarly, the model and property libraries were expanded to handle fuel cell systems, flue gas desulfurization systems, combined cycle gasification systems, fluidized bed combustion systems, ocean thermal energy conversion systems, geothermal systems, nuclear systems, and conventional coal-fired power plants. Obviously, the SALT systems code is extremely flexible to be able to handle all of these diverse systems. At present, the dynamic option has only been used for LMFBR nuclear power plants and geothermal power plants. However, it can easily be extended to other systems and can be used for analyzing control problems. 12 refs.

Berry, G.; Geyer, H.

1983-01-01T23:59:59.000Z

246

Impact of SCIG and DFIG Type Wind Turbine on the Stability of Distribution Networks: static and dynamic  

E-Print Network (OSTI)

Impact of SCIG and DFIG Type Wind Turbine on the Stability of Distribution Networks: static fed induction generator (DFIG) type wind turbine in distribution networks. The analysis is carried out and DFIG type wind turbines have significant impact on the static voltage stability, power loss

Pota, Himanshu Roy

247

A time-cognizant dynamic crash recovery scheme suitable for distributed real-time main memory databases  

Science Conference Proceedings (OSTI)

Rapid and efficient recovery in the event of site crash is very important for distributed real-time main memory database system. In this paper, the recovery correctness criteria of distributed real-time main memory databases are first given. Then, a ...

Yingyuan Xiao; Yunsheng Liu; Xiangyang Chen; Xiaofeng Liu

2006-09-01T23:59:59.000Z

248

Synchronized states in chaotic systems coupled indirectly through a dynamic environment  

E-Print Network (OSTI)

We consider synchronization of chaotic systems coupled indirectly through a common environmnet where the environment has an intrinsic dynmics of its own modulated via feedback from the systems. We find that a rich vareity of synchronization behavior, such as in-phase, anti-phase,complete and anti- synchronization is possible. We present an approximate stability analysis for the different synchronization behaviors. The transitions to different states of synchronous behaviour are analyzed in the parameter plane of coupling strengths by numerical studies for specific cases such as Rossler and Lorenz systems and are characterized using various indices such as correlation, average phase difference and Lyapunov exponents. The threshold condition obtained from numerical analysis is found to agree with that from the stability analysis.

V. Resmi; G. Ambika; R. E. Amritkar

2009-10-13T23:59:59.000Z

249

State-of-the-art review of computational fluid dynamics modeling for fluid-solids systems  

DOE Green Energy (OSTI)

As the result of 15 years of research (50 staff years of effort) Argonne National Laboratory (ANL), through its involvement in fluidized-bed combustion, magnetohydrodynamics, and a variety of environmental programs, has produced extensive computational fluid dynamics (CFD) software and models to predict the multiphase hydrodynamic and reactive behavior of fluid-solids motions and interactions in complex fluidized-bed reactors (FBRS) and slurry systems. This has resulted in the FLUFIX, IRF, and SLUFIX computer programs. These programs are based on fluid-solids hydrodynamic models and can predict information important to the designer of atmospheric or pressurized bubbling and circulating FBR, fluid catalytic cracking (FCC) and slurry units to guarantee optimum efficiency with minimum release of pollutants into the environment. This latter issue will become of paramount importance with the enactment of the Clean Air Act Amendment (CAAA) of 1995. Solids motion is also the key to understanding erosion processes. Erosion rates in FBRs and pneumatic and slurry components are computed by ANL`s EROSION code to predict the potential metal wastage of FBR walls, intervals, feed distributors, and cyclones. Only the FLUFIX and IRF codes will be reviewed in the paper together with highlights of the validations because of length limitations. It is envisioned that one day, these codes with user-friendly pre and post-processor software and tailored for massively parallel multiprocessor shared memory computational platforms will be used by industry and researchers to assist in reducing and/or eliminating the environmental and economic barriers which limit full consideration of coal, shale and biomass as energy sources, to retain energy security, and to remediate waste and ecological problems.

Lyczkowski, R.W.; Bouillard, J.X.; Ding, J.; Chang, S.L. [Argonne National Lab., IL (United States); Burge, S.W. [Babcock and Wilcox, Alliance, OH (United States). Alliance Research Center

1994-05-12T23:59:59.000Z

250

Review for the State of the Art and Application of Polymer Materials / Insulation used in Distribution Class (12 - 46 kV class) Substations  

Science Conference Proceedings (OSTI)

This report covers the results of a state-of-art study into distribution class (12-46 kV) polymer-based products, the technology used to manufacture them, utility experiences, field potential inspection and diagnostic technique, and utility interest for future research and development to be conducted by EPRI.

2003-11-24T23:59:59.000Z

251

The Impact of Size Distribution Assumptions in a Bulk One-Moment Microphysics Scheme on Simulated Surface Precipitation and Storm Dynamics during a Low-Topped Supercell Case in Belgium  

Science Conference Proceedings (OSTI)

In this research the impact of modifying the size distribution assumptions of the precipitating hydrometeors in a bulk one-moment microphysics scheme on simulated surface precipitation and storm dynamics has been explored for long-lived low-topped ...

Kwinten Van Weverberg; Nicole P. M. van Lipzig; Laurent Delobbe

2011-04-01T23:59:59.000Z

252

Langevin molecular dynamics derived from Ehrenfest dynamics  

E-Print Network (OSTI)

Stochastic Langevin molecular dynamics for nuclei is derived from the Ehrenfest Hamiltonian system (also called quantum classical molecular dynamics) in a Kac-Zwanzig setting, with the initial data for the electrons stochastically perturbed from the ground state and the ratio, $M$, of nuclei and electron mass tending to infinity. The Ehrenfest nuclei dynamics is approximated by the Langevin dynamics with accuracy $o(M^{-1/2})$ on bounded time intervals and by $o(1)$ on unbounded time intervals, which makes the small $\\mathcal{O}(M^{-1/2})$ friction and $o(M^{-1/2})$ diffusion terms visible. The initial electron probability distribution is a Gibbs density at low temperture, derived by a stability and consistency argument: starting with any equilibrium measure of the Ehrenfest Hamiltonian system, the initial electron distribution is sampled from the equilibrium measure conditioned on the nuclei positions, which after long time leads to the nuclei positions in a Gibbs distribution (i.e. asymptotic stability); by consistency the original equilibrium measure is then a Gibbs measure.The diffusion and friction coefficients in the Langevin equation satisfy the Einstein's fluctuation-dissipation relation.

Anders Szepessy

2007-12-21T23:59:59.000Z

253

Excited State Dynamics of Two New Ru(II) Cyclometallated Dyes: Relation to Cells for Solar Energy Conversion and Comparison to  

E-Print Network (OSTI)

Excited State Dynamics of Two New Ru(II) Cyclometallated Dyes: Relation to Cells for Solar Energy, are reported. Related complexes have been used as efficient dyes in dye- sensitized solar cells (DSSCs of ruthenium dyes used in DSSCs to lower energies, it is evident from this work, that for cyclometallated phpy

Turro, Claudia

254

A Dynamic Simulation of the Indirect Land Use Implications of Recent Biofuel Production and Use in the United States.  

Science Conference Proceedings (OSTI)

The global indirect land use change (ILUC) implications of biofuel use in the United States of America (USA) from 2001 to 2010 are evaluated with a dynamic general equilibrium model. The effects of biofuels production on agricultural land area vary by year; from a net expansion of 0.17 ha per 1000 gallons produced (2002) to a net contraction of 0.13 ha per 1000 gallons (2018) in Case 1 of our simulation. In accordance with the general narrative about the implications of biofuel policy, agricultural land area increased in many regions of the world. However, oil-export dependent economies experienced agricultural land contraction because of reductions in their revenues. Reducing crude oil imports is a major goal of biofuel policy, but the land use change implications have received little attention in the literature. Simulations evaluating the effects of doubling supply elasticities for land and fossil resources show that these parameters can significantly influence the land use change estimates. Therefore, research that provides empirically-based and spatially-detailed agricultural land-supply curves and capability to project future fossil energy prices is critical for improving estimates of the effects of biofuel policy on land use.

Oladosu, Gbadebo A [ORNL] [ORNL; Kline, Keith L [ORNL] [ORNL

2013-01-01T23:59:59.000Z

255

Pre- and Postupgrade Distributions of NLDN Reported Cloud-to-Ground Lightning Characteristics in the Contiguous United States  

Science Conference Proceedings (OSTI)

The National Lightning Detection Network (NLDN) underwent a major upgrade during 2002–03 that increased its sensitivity and improved its performance. It is important to examine cloud-to-ground (CG) lightning distributions before and after this ...

Scott D. Rudlosky; Henry E. Fuelberg

2010-09-01T23:59:59.000Z

256

Dynamic solid state lighting  

E-Print Network (OSTI)

Energy conservation concerns will mandate near-future environments to regulate themselves to accommodate occupants' objectives and best tend to their comfort while minimizing energy consumption. Accordingly, smart energy ...

Aldrich, Matthew (Matthew Henry)

2010-01-01T23:59:59.000Z

257

Distributive Subband Allocation, Power and Rate Control for Relay-Assisted OFDMA Cellular System with Imperfect System State Knowledge  

E-Print Network (OSTI)

In this paper, we consider distributive subband, power and rate allocation for a two-hop transmission in an orthogonal frequency-division multiple-access (OFDMA) cellular system with fixed relays which operate in decode-and-forward strategy. We take into account of system fairness by considering weighted sum goodput as our optimization objective. Based on the cluster-based architecture, we obtain a fast-converging distributive solution with only local imperfect CSIT by using decomposition of the optimization problem. To further reduce the signaling overhead and computational complexity, we propose a reduced feedback distributive solution, which can achieve asymptotically optimal performance for large number of users with arbitrarily small feedback overhead per user. We also derive asymptotic average system throughput for the relay-assisted OFDMA system so as to obtain useful design insights.

Cui, Ying; Wang, Rui

2009-01-01T23:59:59.000Z

258

Calculations of the anisotropy of the fission fragment angular distribution and neutron emission multiplicities prescission from Langevin dynamics  

SciTech Connect

The anisotropy of the fission fragment angular distribution defined at the saddle point and the neutron multiplicities emitted prior to scission for fissioning nuclei {sup 224}Th, {sup 229}Np, {sup 248}Cf, and {sup 254}Fm are calculated simultaneously by using a set of realistic coupled two-dimensional Langevin equations, where the (c,h,{alpha}=0) nuclear parametrization is employed. In comparison with the one-dimensional stochastic model without neck variation, our two-dimensional model produces results that are in better agreement with the experimental data, and the one-dimensional model is available only for low excitation energies. Indeed, to determine the temperature of the nucleus at the saddle point, we investigate the neutron emission during nucleus oscillation around the saddle point for different friction mechanisms. It is shown that the neutrons emitted during the saddle oscillation cause the temperature of a fissioning nuclear system at the saddle point to decrease and influence the fission fragment angular distribution.

Jia Ying; Bao Jingdong [Department of Physics, Beijing Normal University, Beijing 100875 (China)

2007-03-15T23:59:59.000Z

259

The Non-alcoholic Beverage Market in the United States: Demand Interrelationships, Dynamics, Nutrition Issues and Probability Forecast Evaluation  

E-Print Network (OSTI)

There are many different types of non-alcoholic beverages (NAB) available in the United States today compared to a decade ago. Additionally, the needs of beverage consumers have evolved over the years centering attention on functionality and health dimensions. These trends in volume of consumption are a testament to the growth in the NAB industry. Our study pertains to ten NAB categories. We developed and employed a unique cross-sectional and time-series data set based on Nielsen Homescan data associated with household purchases of NAB from 1998 through 2003. First, we considered demographic and economic profiling of the consumption of NAB in a two-stage model. Race, region, age and presence of children and gender of household head were the most important factors affecting the choice and level of consumption. Second, we used expectation-prediction success tables, calibration, resolution, the Brier score and the Yates partition of the Brier score to measure the accuracy of predictions generated from qualitative choice models used to model the purchase decision of NAB by U.S. households. The Yates partition of the Brier score outperformed all other measures. Third, we modeled demand interrelationships, dynamics and habits of NAB consumption estimating own-price, cross-price and expenditure elasticities. The Quadratic Almost Ideal Demand System, the synthetic Barten model and the State Adjustment Model were used. Soft drinks were substitutes and fruit juices were complements for most of non-alcoholic beverages. Investigation of a proposed tax on sugar-sweetened beverages revealed the importance of centering attention not only to direct effects but also to indirect effects of taxes on beverage consumption. Finally, we investigated factors affecting nutritional contributions derived from consumption of NAB. Also, we ascertained the impact of the USDA year 2000 Dietary Guidelines for Americans associated with the consumption of NAB. Significant factors affecting caloric and nutrient intake from NAB were price, employment status of household head, region, race, presence of children and the gender of household food manager. Furthermore, we found that USDA nutrition intervention program was successful in reducing caloric and caffeine intake from consumption of NAB. The away-from-home intake of beverages and potential impacts of NAB advertising are not captured in our work. In future work, we plan to address these limitations.

Dharmasena, Kalu Arachchillage Senarath

2010-05-01T23:59:59.000Z

260

Adaptive distributed resource allocation and diagnostics using cooperative information-sharing strategies  

Science Conference Proceedings (OSTI)

A major challenge in efficiently solving distributed resource allocation problems is to cope with the dynamic state changes that characterise such systems. An effective solution to this problem should be able to detect state changes and determine why ... Keywords: information-sharing, resource allocation, state diagnosis

Partha S. Dutta; Nicholas R. Jennings; Luc Moreau

2006-05-01T23:59:59.000Z

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


261

Is the Distribution Grid Ready to Accept Large Scale Photovoltaic Deployment? - State of the Art, Progress and Future Prospects  

DOE Green Energy (OSTI)

The installed capacity of photovoltaic systems has recently increased at a much faster rate than the development of grid codes to effectively and efficiently manage high penetrations of PV within the distribution system. In a number of countries, PV penetrations in some regions are now raising growing concerns regarding integration. Management strategies vary considerably by country - some still have an approach that photovoltaic systems should behave as passive as possible while others demand an active participation in grid control. This variety of grid codes also causes challenges in learning from 'best practice'. This paper provides a review of current grid codes in some countries with high PV penetrations. In addition, the paper presents a number of country-specific case studies on different approaches for improved integration of photovoltaic systems in the distribution grid. In particular, we consider integration approaches using active and reactive power control that can reduce or defer expensive grid reinforcement while supporting higher PV penetrations.

Braun, M.; Stetz, T.; Brundlinger, R.; Mayr, C.; Hatta, H.; Kobayashi, H.; Ogimoto, K.; Kroposki, B.; Mather, B.; Coddington, M.; Lynn, K.; Graditi, G.; Woyte, A.; MacGill, I.

2011-01-01T23:59:59.000Z

262

478 IEEE Transactionson Energy Conversion,vol.7, No. 3, September1092. THE PENN STATE INTELLIGENT DISTRIBUTED CONTROL RESEARCH LABORATORY  

E-Print Network (OSTI)

by a growing number of state renewable energy policies, the rising cost of fossil fuels, improved renewable) Kahn, Ed. 1996. "The Production Tax Credit for Wind Turbine Powerplants is an Ineffective Incentive). In addition, other non- renewable technologies, such as refined coal, "Indian" coal, and nuclear power

Ray, Asok

263

Computational Fluid Dynamics Modeling of The Dalles Project: Effects of Spill Flow Distribution Between the Washington Shore and the Tailrace Spillwall  

DOE Green Energy (OSTI)

The U.S. Army Corps of Engineers-Portland District (CENWP) has ongoing work to improve the survival of juvenile salmonids (smolt) migrating past The Dalles Dam. As part of that effort, a spillwall was constructed to improve juvenile egress through the tailrace downstream of the stilling basin. The spillwall was designed to improve smolt survival by decreasing smolt retention time in the spillway tailrace and the exposure to predators on the spillway shelf. The spillwall guides spillway flows, and hence smolt, more quickly into the thalweg. In this study, an existing computational fluid dynamics (CFD) model was modified and used to characterize tailrace hydraulics between the new spillwall and the Washington shore for six different total river flows. The effect of spillway flow distribution was simulated for three spill patterns at the lowest total river flow. The commercial CFD solver, STAR-CD version 4.1, was used to solve the unsteady Reynolds-averaged Navier-Stokes equations together with the k-epsilon turbulence model. Free surface motion was simulated using the volume-of-fluid (VOF) technique. The model results were used in two ways. First, results graphics were provided to CENWP and regional fisheries agency representatives for use and comparison to the same flow conditions at a reduced-scale physical model. The CFD results were very similar in flow pattern to that produced by the reduced-scale physical model but these graphics provided a quantitative view of velocity distribution. During the physical model work, an additional spill pattern was tested. Subsequently, that spill pattern was also simulated in the numerical model. The CFD streamlines showed that the hydraulic conditions were likely to be beneficial to fish egress at the higher total river flows (120 kcfs and greater, uniform flow distribution). At the lowest flow case, 90 kcfs, it was necessary to use a non-uniform distribution. Of the three distributions tested, splitting the flow evenly between Bay 7 and Bay 8 had hydraulics deemed most beneficial for egress by CENWP fisheries biologists and regional fishery agency representatives. The numerical and physical model results were very similar, building confidence in both hydraulic tools.

Rakowski, Cynthia L.; Serkowski, John A.; Richmond, Marshall C.

2010-12-01T23:59:59.000Z

264

Symmetry-adapted distributed approximating functionals: Theory and application to the ro-vibrational states of H{sub 3}{sup +}  

SciTech Connect

Symmetry-adapted Distributed Approximating Functionals (SADAFs) are derived and used to obtain a coordinate representation for the {und A}diabatically Adjusting {und P}rincipal Axis {und H}yperspherical (APH) coordinates kinetic energy operator. The resulting expressions are tested by computing (J=0) ro-vibrational states for the well-studied H{sub 3}{sup +} molecular ion system, by iterative diagonalization of the Hamiltonian matrix using the Arnoldi procedure. The SADAF representation and APH coordinate system are found to be computationally robust and accurate. {copyright} {ital 1999 American Institute of Physics.}

Iyengar, S.S. [Department of Chemistry, University of Houston, Houston, Texas 77204-5641 (United States); Parker, G.A. [Department of Physics, University of Oklahoma, Norman, Oklahoma (United States); Kouri, D.J. [Department of Chemistry and Department of Physics, University of Houston, Houston, Texas 77204-5641 (United States); Hoffman, D.K. [Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)

1999-06-01T23:59:59.000Z

265

Tritium distribution in the environment in the vicinity of a chronic atmospheric source-assessment of the steady state hypothesis  

Science Conference Proceedings (OSTI)

The Savannah River Site (SRS) is a major radionuclide production center. Tritium has been released to the atmosphere over the 36 year period of operation. The tritiated water concentration of the atmosphere, rain, vegetation and food have been routinely monitored during this period. Special studies have been made of tritium in soils and in the organic fractions of these same materials. The available data suggest that the average tritium concentration in the components of the terrestrial environment have approached a steady state with the two main sources of tritium, rainfall and atmospheric water vapor.

Murphy, C.E. Jr.; Bauer, L.R.; Zeigler, C.C.

1990-12-31T23:59:59.000Z

266

Tritium distribution in the environment in the vicinity of a chronic atmospheric source-assessment of the steady state hypothesis  

Science Conference Proceedings (OSTI)

The Savannah River Site (SRS) is a major radionuclide production center. Tritium has been released to the atmosphere over the 36 year period of operation. The tritiated water concentration of the atmosphere, rain, vegetation and food have been routinely monitored during this period. Special studies have been made of tritium in soils and in the organic fractions of these same materials. The available data suggest that the average tritium concentration in the components of the terrestrial environment have approached a steady state with the two main sources of tritium, rainfall and atmospheric water vapor.

Murphy, C.E. Jr.; Bauer, L.R.; Zeigler, C.C.

1990-01-01T23:59:59.000Z

267

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network (OSTI)

for Solar Energy and Distributed Generation in State RPSand Distributed Generation 1014 states) or distributed generation (4 states). However,

Wiser, Ryan

2010-01-01T23:59:59.000Z

268

Decoy state method for measurement device independent quantum key distribution with different intensities in only one basis  

E-Print Network (OSTI)

We show that the three-intensity protocol for measurement device independent quantum key distribution (MDI QKD) can be done with different light intensities in {\\em only one} basis. Given the fact that the exact values yields of single-photon pairs in the $X$ and $Z$ bases must be the same, if we have lower bound of the value in one basis, we can also use this as the lower bound in another basis. Since in the existing set-up for MDI-QKD, the yield of sources in different bases are normally different, therefore our method can improve the key rate drastically if we choose to only use the lower bound of yield of single-photon pairs in the advantageous basis. Moreover, since our proposal here uses fewer intensities of light, the probability of intensity mismatch will be smaller than the existing protocols do. This will further improve the advantage of our method. The advantage of using Z basis or X basis of our method is studied and significant improvement of key rates are numerically demonstrated.

Zong-Wen Yu; Yi-Heng Zhou; Xiang-bin Wang

2013-09-02T23:59:59.000Z

269

The Changing Climate of Cooperative Federalism: The Dynamic Role of the States in a National Strategy to Combat Climate Change  

E-Print Network (OSTI)

state or regional cap-and- trade program, retiring allowances in a federal cap-and-trade sys- tem, requiring certain amounts of renewable energy production,

Snyder, Jared; Binder, Jonathan

2009-01-01T23:59:59.000Z

270

Characterization of fracture reservoirs using static and dynamic data: From sonic and 3D seismic to permeability distribution. Annual report, March 1, 1996--February 28, 1997  

SciTech Connect

In low porosity, low permeability zones, natural fractures are the primary source of permeability which affect both production and injection of fluids. The open fractures do not contribute much to porosity, but they provide an increased drainage network to any porosity. They also may connect the borehole to remote zones of better reservoir characteristics. An important approach to characterizing the fracture orientation and fracture permeability of reservoir formations is one based on the effects of such conditions on the propagation of acoustic and seismic waves in the rock. The project is a study directed toward the evaluation of acoustic logging and 3D-seismic measurement techniques as well as fluid flow and transport methods for mapping permeability anisotropy and other petrophysical parameters for the understanding of the reservoir fracture systems and associated fluid dynamics. The principal application of these measurement techniques and methods is to identify and investigate the propagation characteristics of acoustic and seismic waves in the Twin Creek hydrocarbon reservoir owned by Union Pacific Resources (UPR) and to characterize the fracture permeability distribution using production data. This site is located in the overthrust area of Utah and Wyoming. UPR drilled six horizontal wells, and presently UPR has two rigs running with many established drill hole locations. In addition, there are numerous vertical wells that exist in the area as well as 3D seismic surveys. Each horizontal well contains full FMS logs and MWD logs, gamma logs, etc.

Parra, J.O.; Collier, H.A.; Owen, T.E. [and others

1997-06-01T23:59:59.000Z

271

On Brayton-Moser network decomposition and state-space energy based generalization of Nosé-Hoover dynamics  

Science Conference Proceedings (OSTI)

This paper deals with generalization of the Brayton-Moser network decomposition and related structural properties to a relatively large class of finite dimensional strictly causal systems, which can be described in the state-space representation form. ... Keywords: active power, decomposition, dissipation power, reactive power, state-space energy

Josef Hrusak; Milan Stork; Daniel Mayer

2011-08-01T23:59:59.000Z

272

Novel High-Speed Polarization Source for Decoy-State BB84 Quantum Key Distribution over Free Space and Satellite Links  

E-Print Network (OSTI)

To implement the BB84 decoy-state quantum key distribution (QKD) protocol over a lossy ground-satellite quantum uplink requires a source that has high repetition rate of short laser pulses, long term stability, and no phase correlations between pulses. We present a new type of telecom optical polarization and amplitude modulator, based on a balanced Mach-Zehnder interferometer configuration, coupled to a polarization-preserving sum-frequency generation (SFG) optical setup, generating 532 nm photons with modulated polarization and amplitude states. The weak coherent pulses produced by SFG meet the challenging requirements for long range QKD, featuring a high clock rate of 76 MHz, pico-second pulse width, phase randomization, and 98% polarization visibility for all states. Successful QKD has been demonstrated using this apparatus with full system stability up to 160 minutes and channel losses as high 57 dB [Phys. Rev. A, Vol. 84, p.062326]. We present the design and simulation of the hardware through the Mueller matrix and Stokes vector relations, together with an experimental implementation working in the telecom wavelength band. We show the utility of the complete system by performing high loss QKD simulations, and confirm that our modulator fulfills the expected performance.

Zhizhong Yan; Evan Meyer-Scott; Jean-Philippe Bourgoin; Brendon L. Higgins; Nikolay Gigov; Allison MacDonald; Hannes Hübel; Thomas Jennewein

2012-11-14T23:59:59.000Z

273

Coal Distribution Database, 2006  

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

Domestic Distribution of U.S. Coal by Origin State, Domestic Distribution of U.S. Coal by Origin State, Consumer, Destination and Method of Transportation, 2009 Final February 2011 2 Overview of 2009 Coal Distribution Tables Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing State. This Final 2009 Coal Distribution Report - Annual, supersedes the data contained in the four Quarterly Coal Distribution Reports previously issued for 2009. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys

274

Coal Distribution Database, 2006  

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

2009 Final February 2011 2 Overview of 2009 Coal Distribution Tables Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing State. This Final 2009 Coal Distribution Report - Annual, supersedes the data contained in the four Quarterly Coal Distribution Reports previously issued for 2009. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. In addition, the report

275

Dynamic distributions and changing copulas  

E-Print Network (OSTI)

, which means that a1;0 = 1 and a2;0 = 1. The estimated proportion at time t is the mean of the conditional distri- bution of #25;t; that is E(#25;tjIj(#28;); j = 1; :::; t) = e#25;t = a1t=(a1t + a2t); t = 1; :::; T: The variance is V ar(#25;tjIj(#28;); j... are then given by the forward recur- sion e#25;tjT = !e#25;tjt#0;1 + (1#0; !)(rt + It); t = 1; :::; T; with e#25;1jT = r1 + I1; see appendix. In the middle of a large sample e#25;tjT ' 1#0; ! 1 + ! X j !jjjIt+j (13) The adoption of the recursion in (11) suggests...

Harvey, Andrew C

276

Edge Dynamics in a Quantum Spin Hall State: Effects from Rashba Spin-Orbit Interaction Anders Strom,1  

E-Print Network (OSTI)

412 96 Gothenburg, Sweden 2 Andronikashvili Institute of Physics, Tamarashvili 6, 0177 Tbilisi, Georgia 3 Ilia State University, Cholokashvili Avenue 3-5, 0162 Tbilisi, Georgia (Received 16 April 2010

Johannesson, Henrik

277

Transition dynamics between the multiple steady states in natural ventilation systems : from theories to applications in optimal controls  

E-Print Network (OSTI)

In this study, we investigated the multiple steady state behavior, an important observation in numerical and experimental studies in natural ventilation systems. The-oretical models are developed and their applications in ...

Yuan, Jinchao

2007-01-01T23:59:59.000Z

278

16th International Conference in Quantum ChromoDynamics: Charmonium-like states at BaBar  

E-Print Network (OSTI)

We present new results on charmonium-like states from the BaBar experiment located at the PEP-II asymmetric energy $e^+e^-$ collider at the SLAC National Accelerator Laboratory.

Elisa Fioravanti

2013-09-17T23:59:59.000Z

279

Electron Dynamics of Silicon Surface States: Second-Harmonic Hole Burning on Si(111)7x7  

E-Print Network (OSTI)

States: Second-Harmonic Hole Burning on Si(111) 7× 7 John A.transient spectral hole burning. Spectral holes induced by atransient spectral hole burning, i.e. , the surface-speci?c

McGuire, John A.; Raschke, Markus B.; Shen, Yuen-Ron

2005-01-01T23:59:59.000Z

280

On the distribution of DNA translocation times in solid-state nanopores: an analysis using Schrodinger's first-passage-time theory  

E-Print Network (OSTI)

In this short note, a correction is made to the recently proposed solution [1] to a 1D biased diffusion model for linear DNA translocation and a new analysis will be given to the data in [1]. It was pointed out [2] by us recently that this 1D linear translocation model is equivalent to the one that was considered by Schrodinger [3] for the Enrenhaft-Millikan measurements [4,5] on electron charge. Here we apply Schrodinger's first-passage-time distribution formula to the data set in [1]. It is found that Schrodinger's formula can be used to describe the time distribution of DNA translocation in solid-state nanopores. These fittings yield two useful parameters: drift velocity of DNA translocation and diffusion constant of DNA inside the nanopore. The results suggest two regimes of DNA translocation: (I) at low voltages, there are clear deviations from Smoluchowski's linear law of electrophoresis [6] which we attribute to the entropic barrier effects; (II) at high voltages, the translocation velocity is a linear function of the applied electric field. In regime II, the apparent diffusion constant exhibits a quadratic dependence on applied electric field, suggesting a mechanism of Taylor dispersion effect likely due the electro-osmotic flow field in the nanopore channel. This analysis yields a dispersion-free diffusion constant value for the segment of DNA inside the nanopore which is in agreement with Stokes-Einstein theory quantitatively. The implication of Schrodinger's formula for DNA sequencing is discussed.

Daniel Y. Ling; X. S. Ling

2013-06-11T23:59:59.000Z

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


281

Dynamics of the Cold-Water Event off the Southeast Coast of the United States in the Summer of 2003  

Science Conference Proceedings (OSTI)

The cold-water event along the southeast coast of the United States in the summer of 2003 is studied using satellite data combined with in situ observations. The analysis suggests that the cooling is produced by wind-driven coastal upwelling, ...

Dongliang Yuan

2006-10-01T23:59:59.000Z

282

Quarterly Coal Distribution Report - Energy Information Administration  

U.S. Energy Information Administration (EIA)

The Quarterly Coal Distribution Report (QCDR) provides detailed U.S. domestic coal distribution data by coal origin state, coal destination state, mode of ...

283

Quarterly Coal Distribution Report - Energy Information ...  

U.S. Energy Information Administration (EIA)

The Quarterly Coal Distribution Report (QCDR) provides detailed U.S. domestic coal distribution data by coal origin state, coal destination state, mode of ...

284

The Effects of Fuel Distribution, Velocity Distribution, and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Distribution, and Fuel Composition on Static and Dynamic Instabilities and NO x Emissions in Lean Premixed Combustors Principal Investigator: Domenic A. Santavicca SCIES Project...

285

Conference on natural gas use state regulation and market dynamics in the Post 636/Energy Policy Act Era: Proceedings  

SciTech Connect

Reports in this Record of Proceedings explore a wide variety of issues related to the regulation of natural gas and its future role as one of the critical fuels that powers the economy of the United States. The focus is mainly on problems, obstacles, barriers, and the incredibly complex system created to bring a fuel from wellhead to burner tip. Individual papers have been cataloged separately.

Not Available

1993-08-01T23:59:59.000Z

286

Percent Distribution  

Gasoline and Diesel Fuel Update (EIA)

. . Percent Distribution of Natural Gas Supply and Disposition by State, 1996 Table State Estimated Proved Reserves (dry) Marketed Production Total Consumption Alabama................................................................... 3.02 2.69 1.48 Alaska ...................................................................... 5.58 2.43 2.04 Arizona..................................................................... NA 0 0.55 Arkansas.................................................................. 0.88 1.12 1.23 California.................................................................. 1.25 1.45 8.23 Colorado .................................................................. 4.63 2.90 1.40 Connecticut.............................................................. 0 0 0.58 D.C...........................................................................

287

Underground Distribution Sensors  

Science Conference Proceedings (OSTI)

Rising costs of new infrastructure, increasing demand, and a declining number of available workers will drive utilities to operate as efficiently as possible. The practice of overbuilding infrastructure to improve or maintain reliability will be viewed as cost-inefficient. Utilities will be forced to operate distribution systems more dynamically and efficiently. Distribution sensors will help provide the needed information to utilities to achieve the goal of dynamic efficiency. The Underground Distributi...

2009-03-31T23:59:59.000Z

288

Quantum distillation: Dynamical generation of low-entropy states of strongly correlated fermions in an optical lattice  

Science Conference Proceedings (OSTI)

Correlations between particles can lead to subtle and sometimes counterintuitive phenomena. We analyze one such case, occurring during the sudden expansion of fermions in a lattice when the initial state has a strong admixture of double occupancies. We promote the notion of quantum distillation: during the expansion and in the case of strongly repulsive interactions, doublons group together, forming a nearly ideal band insulator, which is metastable with low entropy. We propose that this effect could be used for cooling purposes in experiments with two-component Fermi gases.

Heidrich-Meisner, F. [Institut fur Physikalische Chemie der RWTH; Manmana, S. R. [Ecole Polytechnique Federale de Lausanne, Switzerland; Rigol, M. [Georgetown University; Muramatsu, A. [Universitat Stuttgart, Institute fur Plasmaforschung, Germany; Feiguin, A. E. [University of Maryland; Dagotto, Elbio R [ORNL

2009-01-01T23:59:59.000Z

289

Persistent dynamic entanglement from classical motion: How bio-molecular machines can generate non-trivial quantum states  

E-Print Network (OSTI)

Very recently [Phys. Rev. E 82, 021921 (2010)] a simple mechanism was presented by which a molecule subjected to forced oscillations, out of thermal equilibrium, can maintain quantum entanglement between two of its quantum degrees of freedom. Crucially, entanglement can be maintained even in the presence of very intense noise, so intense that no entanglement is possible when the forced oscillations cease. This mechanism may allow for the presence of non-trivial quantum entanglement in biological systems. Here we significantly enlarge the study of this model. In particular, we show that the persistent generation of dynamic entanglement is not restricted to the bosonic heat bath model, but it can also be observed in other decoherence models, e.g. the spin gas model, and in non-Markovian scenarios. We also show how conformational changes can be used by an elementary machine to generate entanglement even in unfavorable conditions. In biological systems, similar mechanisms could be exploited by more complex molecular machines or motors.

Gian Giacomo Guerreschi; Jianming Cai; Sandu Popescu; Hans J. Briegel

2011-11-09T23:59:59.000Z

290

The impact of climate and CO{sub 2} changes on ecosystem dynamics of the continental United States  

Science Conference Proceedings (OSTI)

The VEMAP study used three biogeochemical (BGC) models to investigate the impact of changes in climate and CO{sub 2} concentrations over the continental US. These models were Biome-BGC, CENTURY, and TEM. Differences among the BGC models and the climate scenarios (three different GCM-derived 2xCO{sub 2} climates were used) contributed equally to the variation in estimates of C dynamics under changing climate and CO,. The response of the individual biogeochemical models to increases in temperature and tp water stress are largely responsible for their behavior under climate change. All three models generally predict increases in C uptake when increases in temperature are not vastly greater than increases in precipitation, such as seen in the GFDL scenario. Differences in the biotic response to elevated CO{sub 2} determined the overall response of NPP and total system C storage due to differences on the manner in which plant C/N, transpiration, and photosynthesis are modified by the three different BGC models.

Ojima, D.S. [Colorado State Univ., Ft. Collins, CO (United States)

1995-06-01T23:59:59.000Z

291

Hydrodynamical interpretation of quantum mechanics: the momentum distribution  

E-Print Network (OSTI)

The quantum mechanics is considered to be a partial case of the stochastic system dynamics. It is shown that the wave function describes the state of statistically averaged system $$, but not that of the individual stochastic system $\\mathcal{S}_{st}$. It is a common practice to think that such a construction of quantum mechanics contains hidden variables, and it is incompatible with the von Neumann's theorem on hidden variables. It is shown that the original conditions of the von Neumann's theorem are not satisfied. In particular, the quantum mechanics cannot describe the particle momentum distribution. The distribution $w(\\mathbf{p}) =| \\psi_{p%}| ^{2}$ is not a particle momentum distribution at the state $\\psi $, because it cannot be attributed to a wave function. It is closer to the mean momentum distribution, although the two distributions do not coincide exactly.

Yuri A. Rylov

2004-02-15T23:59:59.000Z

292

Virginia State Energy Profile  

U.S. Energy Information Administration (EIA)

The State’s two nuclear power plants provided 38 percent of the net electricity generation ... Storage : 8,111 million cu ft ... energy demand is distributed fairly ...

293

Decoherence rates for Galilean covariant dynamics  

E-Print Network (OSTI)

We introduce a measure of decoherence for a class of density operators. For Gaussian density operators in dimension one it coincides with an index used by Morikawa (1990). Spatial decoherence rates are derived for three large classes of the Galilean covariant quantum semigroups introduced by Holevo. We also characterize the relaxation to a Gaussian state for these dynamics and give a theorem for the convergence of the Wigner function to the probability distribution of the classical analog of the process.

Jeremy Clark

2007-10-08T23:59:59.000Z

294

The Method of Distributed Volumetric Sources for Forecasting the Transient and Pseudo-steady State Productivity of Multiple Transverse Fractures Intersected by a Horizontal Well  

E-Print Network (OSTI)

This work of well performance modeling is focused on solving problems of transient and pseudo-steady state fluid flow in a rectilinear closed boundaries reservoir. This model has been applied to predict and to optimize gas production from a horizontal well intercepted by multiple transverse fractures in a bounded reservoir, and it also provides well-testing solutions. The well performance model is designed to provide enhanced efficiency with the same reliability for pressure transient analysis, and well performance prediction, especially in complex well fracture configuration. The principle is to simplify the calculation of the pressure response to an instantaneous withdraw, which happens in other fractures, within a shorter computational time. This pressure response is substituted with the interaction between the two whole fractures. This method is validated through comparison to results of rigorous Distributed Volumetric Sources (DVS) method in simple symmetric fracture configuration, and to results of field production data for complex well/fracture configuration of a tight gas reservoir. The results show a good agreement in both ways. This model indicates the capability to handle the situations, such as: various well drainages, asymmetry of the fracture wings, and curved horizontal well. The advantage of this well performance model is to provide faster processing - reducing the computational time as the number of fractures increase. Also, this approach is able to be applied as an optimization and screening tool to obtain the best fracture configurations for reservoir development of economically marginal fields, in terms of the number and dimensions of fractures per well, also with external economic and operational constraints.

Fan, Diangeng

2010-12-01T23:59:59.000Z

295

Distributed Generation  

NLE Websites -- All DOE Office Websites (Extended Search)

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

296

Abundance, Distribution and Estimated Consumption (kg fish) of Piscivorous Birds Along the Yakima River, Washington State; Implications for Fisheries Management, 2002 Annual Report.  

DOE Green Energy (OSTI)

This report is divided into two chapters. The abstract for chapter one is--Understanding of the abundance and spatial and temporal distributions of piscivorous birds and their potential consumption of fish is an increasingly important aspect of fisheries management. During 1999-2002, we determined the abundance and distribution and estimated the maximum consumption (kg biomass) of fish-eating birds along the length of the Yakima River in Washington State. Sixteen different species were observed during the 4-yr study, but only half of those were observed during all years. Abundance and estimated consumption of fish within the upper and middle sections of the river were dominated by common mergansers (Mergus merganser) which are known to breed in those reaches. Common mergansers accounted for 78 to 94% of the estimated total fish take for the upper river or approximately 28,383 {+-} 1,041 kg over the 4 yrs. A greater diversity of avian piscivores occurred in the lower river and potential impacts to fish populations was more evenly distributed among the species. In 1999-2000, great blue herons potentially accounted for 29 and 36% of the fish consumed, whereas in 2001-2002 American white pelicans accounted for 53 and 55%. We estimated that approximately 75,878 {+-} 6,616 kg of fish were consumed by piscivorous birds in the lower sections of the river during the study. Bird assemblages differed spatially along the river with a greater abundance of colonial nesting species within the lower sections of the river, especially during spring and the nesting season. The abundance of avian piscivores and consumption estimates are discussed within the context of salmonid supplementation efforts on the river and juvenile out-migration. The abstract for chapter two is--Consumption of fish by piscivorous birds may be a significant constraint on efforts to enhance salmonid populations within tributaries to the Columbia River in Washington State. During 1999-2002, we determined the abundance of fish-eating birds, primarily ring-billed (Larus delawarensis) and California (L. californicus) gulls and monitored their behavior at two man-made structures within the Yakima River in eastern Washington: Horn Rapids Dam, a low-head irrigation dam, and the return pipe for the Chandler Juvenile Fish Handling Facility. Earlier observations of congregations of gulls at these structures suggested an increased likelihood of predation of out-migrating juvenile salmonids. We estimated the number of fish consumed and examined the relationship between river flow and gull numbers and fish taken. Numbers of gulls at the structures varied daily between their arrival in Late March-early April and departure in late June (mean ({+-}SE) - Horn Rapids: 11.7 ({+-}2.0), Chandler: 20.1 ({+-}1.5) ). During the 4-yr study, numbers at Horn Rapids peaked dramatically during the last 2 weeks in May (between 132.9 ({+-}4.2) to 36.6 ({+-}2.2) gulls/day) and appeared to the associated with the release of > 1-mil hatchery juvenile fall chinook (Oncorhynchus tshawytscha) above the 2 study sites. A comparable peak in gull abundance was not observed at Chandler. Diurnal patterns of gull abundance also varied among years and sites. The relationship between foraging efficiency and gull numbers was not consistent among years or sites. Gull numbers were not correlated with river flow when year was considered. However, variations in flow among years appeared to be associated with average gull numbers at each site, but trends were not consistent between sites. Low seasonal flows were associated with increased predation at Chandler, whereas high seasonal flows were associated with increased predation at Horn Rapids. Assuming all fish taken were salmonids, we estimate gulls consumed between 0.1-10.3 % of the juvenile salmonids passing or being released from the Chandler Juvenile Fish Monitoring Facility located above the two structures. Staggered releases of hatchery fish, nocturnal releases of fish entrained in the Chandler facility, changes in the orientation of the outflow from the f

Major, III, Walter; Grassley, James M.; Ryding, Kristen E. (University of Washington, Quantitive Ecology Program, Seattle, WA)

2003-05-01T23:59:59.000Z

297

Percent Distribution  

Gasoline and Diesel Fuel Update (EIA)

. . Percent Distribution of Natural Gas Delivered to Consumers by State, 1996 Table State Residential Commercial Industrial Vehicle Fuel Electric Utilities Alabama..................................... 1.08 0.92 2.27 0.08 0.23 Alaska ........................................ 0.31 0.87 0.85 - 1.16 Arizona....................................... 0.53 0.92 0.30 3.91 0.70 Arkansas.................................... 0.88 0.98 1.59 0.11 1.24 California.................................... 9.03 7.44 7.82 43.11 11.64 Colorado .................................... 2.12 2.18 0.94 0.58 0.20 Connecticut................................ 0.84 1.26 0.37 1.08 0.38 D.C............................................. 0.33 0.52 - 0.21 - Delaware.................................... 0.19 0.21 0.16 0.04 0.86 Florida........................................

298

Background - State Data Reporting  

NLE Websites -- All DOE Office Websites (Extended Search)

State Data Reporting State-reported motor fuel data is a critical component of the process that distributes HTF monies to the States. Currently, motor-fuel-based apportionment...

299

Cloud computing for dynamic systems  

Science Conference Proceedings (OSTI)

Cloud computing is a fast emerging model for enabling dynamic on-demand computing and IT-based services. It promotes dynamic properties and characteristics such as scalability, agility, flexibility, virtualised and distributed on-demand computing. However, ...

Khaled Sabry

2011-11-01T23:59:59.000Z

300

EIA -Quarterly Coal Distribution  

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

Coal Distribution Coal Distribution Home > Coal> Quarterly Coal Distribution Back Issues Quarterly Coal Distribution Archives Release Date: June 27, 2013 Next Release Date: September 2013 The Quarterly Coal Distribution Report (QCDR) provides detailed quarterly data on U.S. domestic coal distribution by coal origin, coal destination, mode of transportation and consuming sector. All data are preliminary and superseded by the final Coal Distribution - Annual Report. Year/Quarters By origin State By destination State Report Data File Report Data File 2009 January-March pdf xls pdf xls April-June pdf xls pdf xls July-September pdf xls pdf October-December pdf xls pdf 2010 January-March pdf xls pdf xls April-June pdf xls pdf xls July-September pdf xls pdf xls

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


301

Electric co-heating in the ASHRAE standard method of test for thermal distribution efficiency: Test results on two New York State homes  

SciTech Connect

Electric co-heating tests on two single-family homes with forced-air heating systems were carried out in March 1995. The goal of these tests was to evaluate procedures being considered for incorporation in a Standard Method of Test for thermal distribution system efficiency now being developed by ASHRAE. Thermal distribution systems are the ductwork, piping, or other means used to transport heat or cooling effect from the building equipment that produces this thermal energy to the spaces in which it is used. Furthering the project goal, the first objective of the tests was to evaluate electric co-heating as a means of measuring system efficiency. The second objective was to investigate procedures for obtaining the distribution efficiency, using system efficiency as a base. Distribution efficiencies of 0.63 and 0.70 were obtained for the two houses.

Andrews, J.W.; Krajewski, R.F.; Strasser, J.J.

1995-10-01T23:59:59.000Z

302

Breakdown of Bose-Einstein distribution in photonic crystals  

E-Print Network (OSTI)

In the last two decades, considerable advances have been made in the investigation of nano-photonics in photonic crystals. Previous theoretical investigations of photon dynamics were carried out at zero temperature. Here, we investigate micro/nano cavity photonics in photonic crystals at finite temperature. Due to photonic-band-gap-induced non-Markovian dynamics, we discover that cavity photons in photonic crystals do not obey the standard Bose-Einstein statistical distribution. Within the photonic band gap and in the vicinity of the band edge, cavity photons combine nontrivial quantum dissipation with thermal fluctuations to form photon states that can memorize the initial cavity state information. As a result, Bose-Einstein distribution is completely broken down in these regimes, even if the thermal energy is larger than the photonic band gap.

Ping-Yuan Lo; Heng-Na Xiong; Wei-Min Zhang

2013-11-21T23:59:59.000Z

303

Distributed information management and publish/subscribe in VANETs: requirements, state of the art and a novel P2P-based approach  

Science Conference Proceedings (OSTI)

Wireless communication is particularly powerful in vehicular ad hoc networks (VANETs) as it implies important possibilities to enhance traffic safety. For this purpose, a car-to-car (C2C) communication system should provide distributed information management. ... Keywords: car-to-car applications, car-to-car communication, distributed hash tables, peer-to-peer algorithms, publish/subscribe, vehicular ad hoc networks, wireless communication systems

Vivian Prinz; Michele Brocco; Wolfgang Woerndl

2009-06-01T23:59:59.000Z

304

Annual Coal Distribution Report - Energy Information Administration  

Gasoline and Diesel Fuel Update (EIA)

current Coal Distribution Report current Coal Distribution Report Annual Coal Distribution Report Release Date: November 7, 2012 | Next Release Date: November 2013 | full report Archive Domestic coal distribution by origin State, destination State, consumer category, method of transportation; foreign coal distribution by major coal-exporting state and method of transportation; and domestic and foreign coal distribution by origin state. Year Domestic and foreign distribution of U.S. coal by State of origin Foreign distribution of U.S. coal by major coal-exporting States and destination Domestic distribution of U.S. coal by origin State, consumer, destination and method of transportation1 Domestic distribution of U.S. coal by destination State, consumer, destination and method of transportation1

305

Distribution, Abundance, and Population Dynamics of Northern Squawfish, Walleye, Smallmouth Bass, and Channel Catfish in John Day Reservoir, 1986 Annual Report.  

DOE Green Energy (OSTI)

John Day Reservoir was sampled from 25 March to 1 September 1986 using gill nets, trap nets, boat electrofishers, hook and line, and an angler survey to collect 4945 northern squawfish Ptychocheilus oregonesis, 602 walleye Stizostedion vitreum 2894 smallmouth bass Micropterus dolomieui, and 563 channel catfish Icatalurus punctatus. Distribution, abundance and population parameters of each species were examined. One year growth, mortality, and relative year class strength was described.

Beamesderfer, Raymond C.

1987-04-01T23:59:59.000Z

306

NREL: Electric Infrastructure Systems Research - Distributed...  

NLE Websites -- All DOE Office Websites (Extended Search)

the distributed power industry in the development and testing of distributed power systems. Researchers use state-of-the-art laboratories and outdoor test beds to characterize...

307

Distributed Wind | Open Energy Information  

Open Energy Info (EERE)

Distributed Wind Distributed Wind Jump to: navigation, search Distributed wind energy systems provide clean, renewable power for on-site use and help relieve pressure on the power grid while providing jobs and contributing to energy security for homes, farms, schools, factories, private and public facilities, distribution utilities, and remote locations.[1] Resources Clean Energy States Alliance. (2010). State-Based Financing Tools to Support Distributed and Community Wind Projects. Accessed September 27, 2013. This guide reviews the financing role that states, and specifically state clean energy funds, have played and can play in supporting community and distributed wind projects. Clean Energy States Alliance. (May 2010). Supporting Onsite Distributed Wind Generation Projects. Accessed September 27, 2013.

308

Residential Price - Local Distribution Companies  

U.S. Energy Information Administration (EIA)

Average Price of Natural Gas Delivered to Residential and Commercial Consumers by Local Distribution and Marketers in Selected States (Dollars per ...

309

Beam discharge excited by distributed virtual cathode  

Science Conference Proceedings (OSTI)

A new type of beam discharge, i.e., beam discharge with a distributed virtual cathode (VC) is proposed and considered by numerical simulation. The discharge is established during counter motion of high-current electron beams in a gas-filled equipotential cavity and is characterized by a state of hot dense electron plasma of primary electrons. The discharge temporal dynamics is studied. It is shown that the VC lifetime depends linearly from this sum in a wide range of the sum of beam currents, from the boundary current of two-beam instability to the critical current of Pierce instability. Generation of nonlinear electrostatic structures shaped as phase bubbles in the discharge is detected, and their dynamics is studied. The parameters are determined, at which the multiple coexistence of phase bubbles and their coalescence during collisions is observed.

Barabanov, V. N.; Dubinov, A. E.; Loiko, M. V.; Saikov, S. K.; Selemir, V. D. [All-Russia Research Institute of Experimental Physics, Russian Federal Nuclear Center (Russian Federation); Tarakanov, V. P. [Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation)

2012-02-15T23:59:59.000Z

310

Electrical utilities model for determining electrical distribution capacity  

Science Conference Proceedings (OSTI)

In its simplest form, this model was to obtain meaningful data on the current state of the Site`s electrical transmission and distribution assets, and turn this vast collection of data into useful information. The resulting product is an Electrical Utilities Model for Determining Electrical Distribution Capacity which provides: current state of the electrical transmission and distribution systems; critical Hanford Site needs based on outyear planning documents; decision factor model. This model will enable Electrical Utilities management to improve forecasting requirements for service levels, budget, schedule, scope, and staffing, and recommend the best path forward to satisfy customer demands at the minimum risk and least cost to the government. A dynamic document, the model will be updated annually to reflect changes in Hanford Site activities.

Fritz, R.L., Westinghouse Hanford, Richland, WA

1997-09-03T23:59:59.000Z

311

United States Department of Energy Office of Nuclear Energy, Isotope Production and Distribution Program financial statements, September 30, 1996 and 1995  

Science Conference Proceedings (OSTI)

The charter of the Department of Energy (DOE) Isotope Production and Distribution Program (Isotope Program) covers the production and sale of radioactive and stable isotopes, associated byproducts, surplus materials such as lithium, and related isotope services. Service provided include, but are not limited to, irradiation services, target preparation and processing, source encapsulation and other special preparations, analyses, chemical separations, and leasing of stable isotopes for research purposes. Isotope Program products and services are sold worldwide for use in a wide variety of research, development, biomedical, and industrial applications. This report presents the results of the independent certified public accountants` audit of the Isotope Production and Distribution Program`s (Isotope) financial statements as of September 30, 1996.

NONE

1997-04-01T23:59:59.000Z

312

Reply to 'Comment on 'Quantum key distribution for d-level systems with generalized Bell states''  

SciTech Connect

In the preceding Comment it has been claimed that an entangled-based quantum key distribution protocol proposed by Zhang, Li, and Gao [Phys. Rev. A 64, 024302 (2001)] and its generalization to d-level systems by Karimipour, Bahraminasab, and Bagherinezhad [Phys. Rev. A 65, 052331 (2002)] are insecure against an attack devised by the authors of the Comment. We invalidate the arguments of the Comment and show that the protocols are still secure.

Karimipour, V. [Department of Physics, Sharif University of Technology, P. O. Box 11365-9161, Tehran (Iran, Islamic Republic of)

2005-12-15T23:59:59.000Z

313

Structure and Evolution of Winter Cyclones in the Central United States and Their Effects on the Distribution of Precipitation. Part II: Arctic Fronts  

Science Conference Proceedings (OSTI)

The structure and evolution of a shallow but intense cold front (commonly referred to as an arctic front) and its associated precipitation features that passed through the central United States from 0000 UTC 9 March to 0000 UTC 10 March 1992 are ...

Peng-Yun Wang; Jonathan E. Martin; John D. Locatelli; Peter V. Hobbs

1995-05-01T23:59:59.000Z

314

Heterogeneities in the Glassy State  

E-Print Network (OSTI)

We study heterogeneities in a binary Lennard-Jones system below the glass transition using molecular dynamics simulations. We identify mobile and immobile particles and measure their distribution of vibrational amplitudes. For temperatures near the glass transition the distribution of vibrational amplitudes obeys scaling and compares reasonably well with a mean field theory for the amorphous solid state. To investigate correlations among the immobile and mobile particles we identify clusters and analyze their size and shape. For a fixed number of immobile particles we observe that the immobile particles cluster more strongly together as the temperature is increased which allows the particles to block each other more effectively, and to therefore stay immobile. For the mobile particles, on the other hand, the clustering is most pronounced at small temperatures, indicating that mobility at low temperatures can only be sustained in cooperative motion.

Katharina Vollmayr-Lee; Annette Zippelius

2005-07-05T23:59:59.000Z

315

Coal Distribution Database, 2008  

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

Destination State, Destination State, Consumer, Destination and Method of Transportation 3Q 2009 February 2010 Quarterly Coal Distribution Table Format and Data Sources 3Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by

316

Coal Distribution Database, 2008  

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

Origin State, Origin State, Consumer, Destination and Method of Transportation 3Q 2009 February 2010 Quarterly Coal Distribution Table Format and Data Sources 3Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by

317

Super Energy Saver Heat Pump with Dynamic Hybrid Phase Change ...  

Super Energy Saver Heat Pump with Dynamic Hybrid Phase Change Material United States Patent Application

318

Estimation of steady-state and transcient power distributions for the RELAP analyses of the 1963 loss-of-flow and loss-of-pressure tests at BR2.  

SciTech Connect

To support the safety analyses required for the conversion of the Belgian Reactor 2 (BR2) from highly-enriched uranium (HEU) to low-enriched uranium (LEU) fuel, the simulation of a number of loss-of-flow tests, with or without loss of pressure, has been undertaken. These tests were performed at BR2 in 1963 and used instrumented fuel assemblies (FAs) with thermocouples (TC) imbedded in the cladding as well as probes to measure the FAs power on the basis of their coolant temperature rise. The availability of experimental data for these tests offers an opportunity to better establish the credibility of the RELAP5-3D model and methodology used in the conversion analysis. In order to support the HEU to LEU conversion safety analyses of the BR2 reactor, RELAP simulations of a number of loss-of-flow/loss-of-pressure tests have been undertaken. Preliminary analyses showed that the conservative power distributions used historically in the BR2 RELAP model resulted in a significant overestimation of the peak cladding temperature during the transient. Therefore, it was concluded that better estimates of the steady-state and decay power distributions were needed to accurately predict the cladding temperatures measured during the tests and establish the credibility of the RELAP model and methodology. The new approach ('best estimate' methodology) uses the MCNP5, ORIGEN-2 and BERYL codes to obtain steady-state and decay power distributions for the BR2 core during the tests A/400/1, C/600/3 and F/400/1. This methodology can be easily extended to simulate any BR2 core configuration. Comparisons with measured peak cladding temperatures showed a much better agreement when power distributions obtained with the new methodology are used.

Dionne, B.; Tzanos, C. P. (Nuclear Engineering Division)

2011-05-23T23:59:59.000Z

319

A Molecular Dynamics  

Science Conference Proceedings (OSTI)

A Tale of Two States and More: Modeling of New Generation of Lattice Stability from Zero ... Analysis of Nano Fluid Using CFD-A Hybrid Approach for Cooling Purpose ... Molecular Dynamics Simulations of Grain Boundary Free Energy and

320

A Molecular Dynamic Study  

Science Conference Proceedings (OSTI)

A Tale of Two States and More: Modeling of New Generation of Lattice Stability from Zero ... Analysis of Nano Fluid Using CFD-A Hybrid Approach for Cooling Purpose ... Molecular Dynamics Simulations of Grain Boundary Free Energy and

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


321

Continuous Opinion Dynamics: Insights through Interactive Markov Chains  

E-Print Network (OSTI)

We reformulate the agent-based opinion dynamics models of Weisbuch-Deffuant and Hegselmann-Krause as interactive Markov chains. So we switch the scope from a finite number of n agents to a finite number of n opinion classes. Thus, we will look at an infinite population distributed to opinion classes instead of agents with real number opinions. The interactive Markov chains show similar dynamical behavior as the agent-based models: stabilization and clustering. Our framework leads to a discrete bifurcation diagram for each model which gives a good view on the driving forces and the attractive states of the system. The analysis shows that the emergence of minor clusters in the Weisbuch-Deffuant model and of meta-stable states with very slow convergence to consensus in the Hegselmann Krause model are intrinsic to the dynamical behavior.

Lorenz, Jan

2007-01-01T23:59:59.000Z

322

Classification with dynamic reducts and belief functions  

Science Conference Proceedings (OSTI)

In this paper, we propose two approaches of classification namely, Dynamic Belief Rough Set Classifier (D-BRSC) and Dynamic Belief Rough Set Classifier based on Generalization Distribution Table (D-BRSC-GDT). Both the classifiers are induced from uncertain ... Keywords: belief function theory, classification, dynamic reduct, generalization distribution table, rough sets, uncertainty

Salsabil Trabelsi; Zied Elouedi; Pawan Lingras

2011-01-01T23:59:59.000Z

323

U.S. Energy Information Administration | Annual Coal Distribution...  

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

U.S. Energy Information Administration | Annual Coal Distribution Report 2011 By Coal Destination State ...

324

Dynamic Stability and Thermodynamic Characterization in an Enzymatic Reaction at the Single Molecule Level  

E-Print Network (OSTI)

In this work we study the thermodynamic and dynamic characteristics of an enzymatic reaction at the single molecular level. We investigate how the stability of the enzyme-state stationary probability distribution, the reaction velocity, and its efficiency of energy conversion depend on the system parameters. We employ in this study a recently introduced formalism for performing a multiscale thermodynamic analysis in continuous-time discrete-state stochastic systems.

Santillán, Moisés

2010-01-01T23:59:59.000Z

325

Dynamic Stability and Thermodynamic Characterization in an Enzymatic Reaction at the Single Molecule Level  

E-Print Network (OSTI)

In this work we study, at the single molecular level, the thermodynamic and dynamic characteristics of an enzymatic reaction comprising a rate limiting step. We investigate how the stability of the enzyme-state stationary probability distribution, the reaction velocity, and its efficiency of energy conversion depend on the system parameters. We employ in this study a recently introduced formalism for performing a multiscale thermodynamic analysis in continuous-time discrete-state stochastic systems.

Moisés Santillán

2010-11-24T23:59:59.000Z

326

Distribution of toenail selenium levels in young adult Caucasians and African Americans in the United States: The CARDIA Trace Element Study  

SciTech Connect

Background: Data on selenium (Se) levels in American young adults, especially in African Americans, are lacking. Objective: This study presented toenail Se distributions in American young adults of both genders, including both Caucasians and African Americans; and explored potential predictors of toenail Se levels. Data and methods: Data from the Coronary Artery Risk Development in Young Adults study among 4252 American young adults, aged 20-32 in 1987 was used to examine toenail Se levels by instrumental neutron-activation analysis. The distribution of Se levels was described and multivariable linear regression was used to examine potential modifiers of toenail Se concentration within ethnicity-gender subgroups. Results: The geometric mean of toenail Se in this cohort was 0.844 {mu}g/g (95% CI, 0.840-0.849 {mu}g/g) and the median was 0.837 {mu}g/g (95% CI, 0.833-0.844 {mu}g/g). Median levels from lowest to highest quintile were 0.691, 0.774, 0.838, 0.913 and 1.037 {mu}g/g. Se levels varied geographically, and were generally in accordance with its concentrations in local soil. Males, African Americans, current smokers, heavy drinkers and less educated participants were more likely to have low Se levels. Conclusion: This study suggests that toenail Se levels vary geographically depending on soil Se concentrations. In addition to gender, ethnicity and education level, smoking status and alcohol consumption are two important indicators of Se status since they are modifiable lifestyle factors. Findings from this study might aid public health professionals in identifying people at relatively high or low Se levels, so that chronic disease prevention efforts can be directed toward these subgroups. - Research highlights: {yields} Average of toenail Se levels in this cohort was 0.844 {mu}g/g (95% CI, 0.840-0.849 {mu}g/g). {yields} Toenail Se levels vary geographically depending on soil Se concentrations. {yields} Males, African Americans and less educated participants have low Se levels. {yields} Smoking status and alcohol consumption are two important indicators of Se status.

Xun, Pengcheng; Bujnowski, Deborah [Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, 2221 McGavran-Greenberg, Campus Box: 7461, Chapel Hill, NC (United States) [Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, 2221 McGavran-Greenberg, Campus Box: 7461, Chapel Hill, NC (United States); Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC (United States); Liu, Kiang [Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL (United States)] [Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL (United States); Steve Morris, J. [Research Reactor Center, University of Missouri-Columbia, Columbia, MO (United States)] [Research Reactor Center, University of Missouri-Columbia, Columbia, MO (United States); Guo, Zhongqin [Department of Epidemiology and Biostatistics, School of Public Health, Ningxia Medical University, Ningxia (China) [Department of Epidemiology and Biostatistics, School of Public Health, Ningxia Medical University, Ningxia (China); Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, 2221 McGavran-Greenberg, Campus Box: 7461, Chapel Hill, NC (United States); He, Ka, E-mail: kahe@unc.edu [Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, 2221 McGavran-Greenberg, Campus Box: 7461, Chapel Hill, NC (United States) [Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, 2221 McGavran-Greenberg, Campus Box: 7461, Chapel Hill, NC (United States); Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC (United States)

2011-05-15T23:59:59.000Z

327

Coal Distribution Database, 2008  

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

4Q 2009 4Q 2009 April 2010 Quarterly Coal Distribution Table Format and Data Sources 4Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by transportation mode. The data sources beginning with the 2008 Coal Distribution Report

328

Distribution of calcretes and gypcretes in southwestern United States and their uranium favorability, based on a study of deposits in Western Australia and South West Africa (Namibia)  

SciTech Connect

Calcrete, dolocrete, and gypcrete carnotite are abundant in western Australia and Namib Desert, although only a few are of ore grade. The geology of these deposits are described. A genetic classification of calcretes emphasizing uranium favorability was developed, based on the distinction between pedogenic and nonpedogenic processes. Similarities between western Australia and South West Africa give support for the conclusions that lateral transport of U in groundwater is essential to ore deposition and that bedrock barriers or constrictions which narrow the channel of subsurface flow or force the water close to the land surface, greatly favor the formation of uraniferous calcretes. Criteria for uranium favorability deduced from the Australian and South West African studies were applied in a preliminary way to the southern Basin and Range Province of U.S. The procedure is to search for areas in which nonpedogenic calcrete or gypcrete may have developed. A caliche distribution map was compiled from soil survey and field data. Many areas were visited and some of the more interesting are described briefly, including parts of Clark County, Nevada, with occurrences of carnotite in calcrete. (DLC)

Carlisle, D.; Merifield, P.M.; Orme, A.R.; Kohl, M.S.; Kolker, O.; Lunt, O.R.

1978-01-06T23:59:59.000Z

329

Equitable distribution  

Science Conference Proceedings (OSTI)

The problem of distributing available resources occurs in a great variety of networks, each with peculiarities of its own. Coal from mines has to be distributed to central dumps and to small yards. Ice cream must be distributed only to refrigerated stores ...

John A. Gosden

1963-05-01T23:59:59.000Z

330

Equilibrium Distributions and Superconductivity  

E-Print Network (OSTI)

In this article two models for charges distributions are discussed. On the basis of our consideration we put different points of view for stationary state. We prove that only finite energy model for charges' distribution and well-known variation principle explain some well-known experimental results. A new model for superconductivity was suggested, too. In frame of that model some characteristic experimental results for superconductors is possible to explain.

Ashot Vagharshakyan

2011-06-07T23:59:59.000Z

331

Interaction between economic dynamical systems  

Science Conference Proceedings (OSTI)

The paper considers economic dynamical systems, the state spaces being the Riemannian manifolds. Between two economic dynamical systems, global feedforward and the feedback interaction is defined and the connection between their linearization and prolongation ... Keywords: economic dynamical system, economic flow, feedback, feedforward, linearization, prolongation by derivation

Constantin Patrascoiu

2009-07-01T23:59:59.000Z

332

State Summaries  

Gasoline and Diesel Fuel Update (EIA)

46. 46. Percent Distribution of Natural Gas Supply and Disposition by State, 1996 Table State Estimated Proved Reserves (dry) Marketed Production Total Consumption Alabama................................................................... 3.02 2.69 1.48 Alaska ...................................................................... 5.58 2.43 2.04 Arizona..................................................................... NA 0 0.55 Arkansas.................................................................. 0.88 1.12 1.23 California.................................................................. 1.25 1.45 8.23 Colorado .................................................................. 4.63 2.90 1.40 Connecticut.............................................................. 0 0 0.58 D.C...........................................................................

333

A Seasonal Precipitation and Stream Flow Hindcast and Prediction Study in the Western United States during the 1997/98 Winter Season Using a Dynamic Downscaling System  

Science Conference Proceedings (OSTI)

The authors present a seasonal hindcast and prediction of precipitation in the western United States and stream flow in a northern California coastal basin for December 1997–February 1998 (DJF) using the Regional Climate System Model (RCSM). In ...

Jinwon Kim; Norman L. Miller; John D. Farrara; Song-You Hong

2000-08-01T23:59:59.000Z

334

An assessment of the influences of surface and subsurface water level dynamics in the development of gullies in Anambra State, southeastern Nigeria  

Science Conference Proceedings (OSTI)

Gully erosion induced problems have been challenging the people and government of Anambra State in southeastern Nigeria for a long time. In spite of the numerous geoscientific and engineering studies so far conducted in the area, the underlying ...

Elizabeth I. Okoyeh; Anthony E. Akpan; B. C. E. Egboka; H. I. Okeke

335

Distribution Screening for Distributed Generation  

Science Conference Proceedings (OSTI)

As the deployment of renewable distributed generation increases, the need for traditional energy providers to interact with these resources increases. Detailed modeling and simulation of the distribution and distributed resources is a critical element to better analyze, understand and predict these interactions. EPRI has developed a tool for such analysis called OpenDSS. In addition, as part of the renewable integration program an applet was created for screening distributed generation (DG). This report ...

2009-12-23T23:59:59.000Z

336

Doorway states and billiards  

SciTech Connect

Whenever a distinct state is immersed in a sea of complicated and dense states, the strength of the distinct state, which we refer to as a doorway, is distributed in their neighboring states. We analyze this mechanism for 2-D billiards with different geometries. One of them is symmetric and integrable, another is symmetric but chaotic, and the third has a capricious form. The fact that the doorway-state mechanism is valid for such highly diverse cases, proves that it is robust.

Franco-Villafane, J. A.; Mendez-Sanchez, R. A. [Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, P.O. Box 48-3, 62251 Cuernavaca Mor. (Mexico); Flores, J. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico, P.O. Box 20-364, 01000 Mexico, D. F. (Mexico); Centro Internacional de Ciencias, A. C., P.O. Box 6-101 C.P. 62131 Cuernavaca, Mor. (Mexico); Mateos, J. L. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico, P.O. Box 20-364, 01000 Mexico, D. F. (Mexico); Novaro, O. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico, P.O. Box 20-364, 01000 Mexico, D. F. (Mexico); Seligman, T. H. [Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, P.O. Box 48-3, 62251 Cuernavaca Mor. (Mexico); Centro Internacional de Ciencias, A. C., P.O. Box 6-101 C.P. 62131 Cuernavaca, Mor. (Mexico)

2010-12-23T23:59:59.000Z

337

Distributed computation in wireless and dynamic networks  

E-Print Network (OSTI)

Today's wireless networks tend to be centralized: they are organized around a fixed central backbone such as a network of cellular towers or wireless access points. However, as mobile computing devices continue to shrink ...

Oshman, Rotei

2012-01-01T23:59:59.000Z

338

Conservation law for distributed entanglement of formation and quantum discord  

E-Print Network (OSTI)

We present a direct relation, based upon a monogamic principle, between entanglement of formation (EOF) and quantum discord (QD), showing how they are distributed in an arbitrary tripartite pure system. By extending it to a paradigmatic situation of a bipartite system coupled to an environment, we demonstrate that the EOF and the QD obey a conservation relation. By means of this relation we show that in the deterministic quantum computer with one pure qubit the protocol has the ability to rearrange the EOF and the QD, which implies that quantum computation can be understood on a different basis as a coherent dynamics where quantum correlations are distributed between the qubits of the computer. Furthermore, for a tripartite mixed state we show that the balance between distributed EOF and QD results in a stronger version of the strong subadditivity of entropy.

F. F. Fanchini; M. F. Cornelio; M. C. de Oliveira; A. O. Caldeira

2010-06-12T23:59:59.000Z

339

A Dynamic Platform for Runtime Adaptation  

E-Print Network (OSTI)

We present a middleware platform for assembling pervasive applications that demand fault-tolerance and adaptivity in distributed, dynamic environments. Unlike typical adaptive middleware approaches, in which sophisticated ...

Pham, Hubert

340

Distribution Workshop  

Energy.gov (U.S. Department of Energy (DOE))

On September 24-26, 2012, the GTT presented a workshop on grid integration on the distribution system at the Sheraton Crystal City near Washington, DC.

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


341

Parton Distributions in Hadrons  

SciTech Connect

We use the statistical model of Zhang et al. to calculate parton distributions in hadrons. The model does reasonably well in predicting the distributions of partons in the proton, including the (d-bar - u-bar) excess in the proton sea. We extend the model to calculate quark and gluon distributions in the pion, kaon, and the pentaquark. The hadrons are described in terms of quark and gluon Fock states. Detailed balance between each pair of states is assumed, from which the coefficients of the Fock state expansion are determined. The parton distribution functions are found in the hadron rest frame from a Monte Carlo calculation. The results are evolved to appropriate QCD scales for comparison with experiment. Despite its simplicity, the model is in good agreement with the experimentally measured distributions of partons in the pion and kaon. This project has included significant participation by undergraduates at Seattle University, made possible by support from the Research in Undergraduate Institutions Program of the National Science Foundation.

Alberg, Mary [Department of Physics, Seattle University, Seattle, WA 98122 (United States); Department of Physics, University of Washington, Seattle, WA 98195 (United States); Henley, Ernest M. [Department of Physics, University of Washington, Seattle, WA 98195 (United States); Institute for Nuclear Theory, University of Washington, Seattle, WA 98195 (United States)

2006-07-11T23:59:59.000Z

342

Polymer Translocation Dynamics in the Quasi-Static Limit  

E-Print Network (OSTI)

Monte Carlo (MC) simulations are used to study the dynamics of polymer translocation through a nanopore in the limit where the translocation rate is sufficiently slow that the polymer maintains a state of conformational quasi-equilibrium. The system is modeled as a flexible hard-sphere chain that translocates through a cylindrical hole in a hard flat wall. In some calculations, the nanopore is connected at one end to a spherical cavity. Translocation times are measured directly using MC dynamics simulations. For sufficiently narrow pores, translocation is sufficiently slow that the mean translocation time scales with polymer length N according to \\propto (N-N_p)^2, where N_p is the average number of monomers in the nanopore; this scaling is an indication of a quasi-static regime in which polymer-nanopore friction dominates. We use a multiple-histogram method to calculate the variation of the free energy with Q, a coordinate used to quantify the degree of translocation. The free energy functions are used with the Fokker-Planck formalism to calculate translocation time distributions in the quasi-static regime. These calculations also require a friction coefficient, characterized by a quantity N_{eff}, the effective number of monomers whose dynamics are affected by the confinement of the nanopore. This was determined by fixing the mean of the theoretical distribution to that of the distribution obtained from MC dynamics simulations. The theoretical distributions are in excellent quantitative agreement with the distributions obtained directly by the MC dynamics simulations for physically meaningful values of N_{eff}. The free energy functions for narrow-pore systems exhibit oscillations with an amplitude that is sensitive to the nanopore length. Generally, larger oscillation amplitudes correspond to longer translocation times.

James M. Polson; Anthony C. M. McCaffrey

2013-01-09T23:59:59.000Z

343

Scaling up of Carbon Exchange Dynamics from AmeriFlux Sites to a Super-Region in the Eastern United States  

SciTech Connect

The primary objective of this project was to evaluate carbon exchange dynamics across a region of North America between the Great Plains and the East Coast. This region contains about 40 active carbon cycle research (AmeriFlux) sites in a variety of climatic and landuse settings, from upland forest to urban development. The core research involved a scaling strategy that uses measured fluxes of CO{sub 2}, energy, water, and other biophysical and biometric parameters to train and calibrate surface-vegetation-atmosphere models, in conjunction with satellite (MODIS) derived drivers. To achieve matching of measured and modeled fluxes, the ecosystem parameters of the models will be adjusted to the dynamically variable flux-tower footprints following Schmid (1997). High-resolution vegetation index variations around the flux sites have been derived from Landsat data for this purpose. The calibrated models are being used in conjunction with MODIS data, atmospheric re-analysis data, and digital land-cover databases to derive ecosystem exchange fluxes over the study domain.

Hans Peter Schmid; Craig Wayson

2009-05-05T23:59:59.000Z

344

Probing the Environment with Galaxy Dynamics  

E-Print Network (OSTI)

I present various projects to study the halo dynamics of elliptical galaxies. This allows one to study the outer mass and orbital distributions of ellipticals in different environments, and the inner distributions of groups and clusters themselves.

Aaron J. Romanowsky

2006-05-02T23:59:59.000Z

345

A directory service for configuring high-performance distributed computations  

Science Conference Proceedings (OSTI)

High-performance execution in distributed computing environments often requires careful selection and configuration not only of computers, networks, and other resources but also of the protocols and algorithms used by applications. Selection and configuration in turn require access to accurate, up-to-date information on the structure and state of available resources. Unfortunately, no standard mechanism exists for organizing or accessing such information. Consequently, different tools and applications adopt ad hoc mechanisms, or they compromise their portability and performance by using default configurations. We propose a Metacomputing Directory Service that provides efficient and scalable access to diverse, dynamic, and distributed information about resource structure and state. We define an extensible data model to represent required information and present a scalable, high-performance, distributed implementation. The data representation and application programming interface are adopted from the Lightweight Directory Access Protocol; the data model and implementation are new. We use the Globus distributed computing toolkit to illustrate how this directory service enables the development of more flexible and efficient distributed computing services and applications.

Fitzgerald, S.; Kesselman, C. [Univ. of Southern California, Marina del Rey, CA (United States). Information Sciences Institute; Foster, I. [Argonne National Lab., IL (United States)] [and others

1997-08-01T23:59:59.000Z

346

Energy trapping from Hagedorn densities of states  

E-Print Network (OSTI)

In this note, we construct simple stochastic toy models for holographic gauge theories in which distributions of energy on a collection of sites evolve by a master equation with some specified transition rates. We build in only energy conservation, locality, and the standard thermodynamic requirement that all states with a given energy are equally likely in equilibrium. In these models, we investigate the qualitative behavior of the dynamics of the energy distributions for different choices of the density of states for the individual sites. For typical field theory densities of states (\\log(\\rho(E)) ~ E^{\\alphaenergy spread out relatively quickly. For large N gauge theories with gravitational duals, the density of states for a finite volume of field theory degrees of freedom typically includes a Hagedorn regime (\\log(\\rho(E)) ~ E). We find that this gives rise to a trapping of energy in subsets of degrees of freedom for parametrically long time scales before the energy leaks away. We speculate that this Hagedorn trapping may be part of a holographic explanation for long-lived gravitational bound states (black holes) in gravitational theories.

Connor Behan; Klaus Larjo; Nima Lashkari; Brian Swingle; Mark Van Raamsdonk

2013-04-26T23:59:59.000Z

347

Rights-of-Way Stability: A 15-year Appraisal of Plant Dynamics on Electric Power Rights-of-Way in New York State  

Science Conference Proceedings (OSTI)

Operational, selective removal of trees on rights-of-way (ROWs) can create relatively stable, compositionally constant low-density tree populations. This report presents the results of studies on 21 electric transmission line ROWs in New York State. The results show that selective vegetation management of undesirable species, an ecologically based management technique, helps promote or maintain plant species richness and diversity on upland landscapes, but appears to have no effect in wetlands. In additi...

1999-09-16T23:59:59.000Z

348

A State-Queueing Model of Thermostatically Controlled Appliances  

Science Conference Proceedings (OSTI)

This paper develops a new method to analyze the price response of aggregated loads consisting of thermostatically controlled appliances (TCAs). Assuming a perfectly diversified load before the price response, we show that TCA setpoint changes in response to the market price will result in a redistribution of TCAs in on/off states and therefore change the probabilities for a unit to reside in each state. A randomly distributed load can be partially synchronized and the aggregated diversity lost. The lost of the load diversity can then create unexpected dynamics in the aggregated load profile. Raising issues such as restoring load diversity and damping the peak loads are also addressed in the paper.

Lu, Ning; Chassin, David P.

2004-08-01T23:59:59.000Z

349

Unclassified Distribution  

NLE Websites -- All DOE Office Websites (Extended Search)

63 1 Unclassified Distribution UNIVERSITY :OF CALIFORNU Radiation Lab oratory Contract No, W-7405-eng-48 THE DETECTION OF U T I F I C I B L L Y PRODUCED WOTOMESONS WITH COUNTERS *...

350

Photodissociation dynamics and spectroscopy of free radical combustion intermediates  

Science Conference Proceedings (OSTI)

The photodissociation spectroscopy and dynamics of free radicals is studied by the technique of fast beam photofragment translational spectroscopy. Photodetachment of internally cold, mass-selected negative ions produces a clean source of radicals, which are subsequently dissociated and detected. The photofragment yield as a function of photon energy is obtained, mapping out the dissociative and predissociative electronic states of the radical. In addition, the photodissociation dynamics, product branching ratios, and bond energies are probed at fixed photon energies by measuring the translational energy, P(E{sub T}), and angular distribution of the recoiling fragments using a time- and position-sensitive detector. Ab initio calculations are combined with dynamical and statistical models to interpret the observed data. The photodissociation of three prototypical hydrocarbon combustion intermediates forms the core of this work.

Osborn, D.L.

1996-12-01T23:59:59.000Z

351

Distributed Generation  

NLE Websites -- All DOE Office Websites (Extended Search)

with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie...

352

Special Distribution  

Office of Legacy Management (LM)

Special Distribution Special Distribution Issued: December 1977 ',, Radiological Survey and Decontamination of the Former Main Technical Area (TA-1) at Los Alamos, New Mexico Compiled by A. John Ahlquist Alan K. Stoker Linda K. Trocki c laboratory of, the University of California LOS ALAMOS, NEW MEXICO 87545 An Alfirmdve Action/Equal Opportunity Employer ..-_- .-- .--.-. c T -,--... _ _._-r..l __,.. - .-,_.. ..- _._ -- .--. " . . _ . - . c- - . . . _ -. . _ . - . - . _ - - n - _ _~ ~_. __ _ ~~_ --..&e+ L.';; CONTENTS ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._____ 1 EXECUTIVE SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._... _._ 2 I. BACKGROUND .............................................. 15

353

Efficient Generation of the LF Excited State of Tris-(bpy)-Ru(II)  

NLE Websites -- All DOE Office Websites (Extended Search)

Generation of the Ligand Field Excited State of Generation of the Ligand Field Excited State of Tris-(2,2'-bipyridine)-ruthenium(II) through Sequential Two-Photon Capture by [Ru(bpy)3]2+ or Electron Capture by [Ru(bpy)3]3+ David W. Thompson, James F. Wishart, Bruce S. Brunschwig and Norman Sutin J. Phys. Chem. A, 105, 8117-8122 (2001) [Find paper at ACS Publications] Abstract: The relaxation dynamics and product distribution resulting from the decay of high lying excited states generated via sequential two-photon capture by [Ru(bpy)3]2+ or electron capture by [Ru(bpy)3]3+ have been investigated by flash photolysis and pulse radiolysis techniques. In comparison to the decay dynamics for monophotonic excitation, dramatically different relaxation dynamics have been observed. High-power flash excitation yields

354

Origin State Destination State  

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

6. Estimated rail transportation rates for coal, state to state, STB data 6. Estimated rail transportation rates for coal, state to state, STB data Origin State Destination State 2001 2002 2003 2004 2005 2006 2007 2008 2009 2001-2009 2008-2009 Alabama Alabama W W W W W W W W W W W Alabama Georgia W W W W W W W W W W W Alabama Illinois - - - - - W W W W - W Colorado Alabama - W W W W W W W W - W Colorado Arizona W W W W W W W W W W W Colorado Arkansas - - - - W W W W - - -

355

Origin State Destination State  

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

5. Estimated barge transportation rates for coal, state to state, EIA data 5. Estimated barge transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama $4.31 $4.36 $5.01 7.9 15.0 Alabama Ohio W - - - - Colorado Alabama W - - - - Colorado Florida $11.08 $12.65 $13.27 9.4 4.9 Colorado Indiana $6.29 W - - - Colorado Iowa W - - - - Colorado Kentucky W - - - - Colorado Mississippi - - W - - Colorado Ohio - W - - - Colorado Tennessee W - - - - Illinois Alabama W $13.15 $14.28 W 8.6

356

Origin State Destination State  

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

8. Estimated truck transportation rates for coal, state to state, EIA data 8. Estimated truck transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama W W W W W Alabama Georgia - - W - - Alabama Indiana W W - - - Colorado Colorado W W W W W Colorado Michigan - - W - - Illinois Florida W - - - - Illinois Illinois $7.51 $4.74 $3.37 -33.0 -28.8 Illinois Indiana W W - - - Illinois Minnesota W W - - - Illinois Missouri $21.73 $20.23 $13.30 -21.8 -34.3 Indiana Alabama - W - - -

357

Origin State Destination State  

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

5. Estimated rail transportation rates for coal, state to state, STB data 5. Estimated rail transportation rates for coal, state to state, STB data Origin State Destination State 2001 2002 2003 2004 2005 2006 2007 2008 2009 2001-2009 2008-2009 Alabama Alabama W W W W W W W W W W W Alabama Georgia W W W W W W W W W W W Alabama Illinois - - - - - W W W W - W Colorado Alabama - W W W W W W W W - W Colorado Arizona W W W W W W W W W W W Colorado Arkansas - - - - W W W W - - -

358

Origin State Destination State  

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

4. Estimated rail transportation rates for coal, state to state, STB data 4. Estimated rail transportation rates for coal, state to state, STB data Origin State Destination State 2001 2002 2003 2004 2005 2006 2007 2008 2009 2001-2009 2008-2009 Alabama Alabama W W W W W W W W W W W Alabama Georgia W W W W W W W W W W W Alabama Illinois - - - - - W W W W - W Colorado Alabama - W W W W W W W W - W Colorado Arizona W W W W W W W W W W W Colorado Arkansas - - - - W W W W - - -

359

Origin State Destination State  

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

6. Estimated barge transportation rates for coal, state to state, EIA data 6. Estimated barge transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama $3.97 $3.97 $4.52 6.7 13.7 Alabama Ohio W - - - - Colorado Alabama W - - - - Colorado Florida $10.21 $11.53 $11.95 8.2 3.7 Colorado Indiana $5.79 W - - - Colorado Iowa W - - - - Colorado Kentucky W - - - - Colorado Mississippi - - W - - Colorado Ohio - W - - - Colorado Tennessee W - - - - Illinois Alabama W $11.99 $12.87 W 7.3

360

Origin State Destination State  

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

7. Estimated truck transportation rates for coal, state to state, EIA data 7. Estimated truck transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama W W W W W Alabama Georgia - - W - - Alabama Indiana W W - - - Colorado Colorado W W W W W Colorado Michigan - - W - - Illinois Florida W - - - - Illinois Illinois $8.16 $5.20 $3.75 -32.2 -27.9 Illinois Indiana W W - - - Illinois Minnesota W W - - - Illinois Missouri $23.60 $22.20 $14.77 -20.9 -33.5 Indiana Alabama - W - - -

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361

Photodissociation spectroscopy and dynamics of free radicals, clusters, and ions  

Science Conference Proceedings (OSTI)

The photodissociation spectroscopy and dynamics of free radicals and ions is studied to characterize the dissociative electronic states in these species. To accomplish this, a special method of radical production, based on the photodetachment of the corresponding negative ion, has been combined with the technique of fast beam photofragment translational spectroscopy. The photofragment yield as a function of photon energy is obtained, mapping out the dissociative and predissociative electronic states. Branching ratios to various product channels, the translational energy distributions of the fragments, and bond dissociation energies are then determined at selected photon energies. The detailed picture of photodissociation dynamics is provided with the aid of ab initio calculations and a statistical model to interpret the observed data. Important reaction intermediates in combustion reactions have been studied: CCO, C{sub 2}H{sub 5}O, and linear C{sub n} (n = 4--6).

Hyeon, Choi

1999-12-16T23:59:59.000Z

362

Partial Dynamical Symmetry and Mixed Dynamics  

E-Print Network (OSTI)

Partial dynamical symmetry describes a situation in which some eigenstates have a symmetry which the quantum Hamiltonian does not share. This property is shown to have a classical analogue in which some tori in phase space are associated with a symmetry which the classical Hamiltonian does not share. A local analysis in the vicinity of these special tori reveals a neighbourhood of phase space foliated by tori. This clarifies the suppression of classical chaos associated with partial dynamical symmetry. The results are used to divide the states of a mixed system into ``chaotic'' and ``regular'' classes.

A. Leviatan; N. D. Whelan

1996-08-24T23:59:59.000Z

363

Annual Coal Distribution Report - Energy Information Administration  

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

Annual Coal Distribution Report Annual Coal Distribution Report Release Date: December 19, 2013 | Next Release Date: November 2014 | full report | Revision/Correction The Annual Coal Distribution Report (ACDR) provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing state. All data for 2012 are final, and this report supersedes the 2012 quarterly coal distribution reports. Highlights for 2012: Total coal distributions for 2012 were 1,003.1 million short tons (mmst), a decrease of 7.9% compared to 2011. Distributions to domestic destinations were 877.3 mmst, a decrease of 104.1 mmst (i.e. 10.6% decrease) compared to 2011. Distributions to

364

Pseudo-random number generation for Brownian Dynamics and Dissipative Particle Dynamics simulations on GPU devices  

Science Conference Proceedings (OSTI)

Highlights: {yields} Molecular Dynamics codes implemented on GPUs have achieved two-order of magnitude computational accelerations. {yields} Brownian Dynamics and Dissipative Particle Dynamics simulations require a large number of random numbers per time step. {yields} We introduce a method for generating small batches of pseudorandom numbers distributed over many threads of calculations. {yields} With this method, Dissipative Particle Dynamics is implemented on a GPU device without requiring thread-to-thread communication. - Abstract: Brownian Dynamics (BD), also known as Langevin Dynamics, and Dissipative Particle Dynamics (DPD) are implicit solvent methods commonly used in models of soft matter and biomolecular systems. The interaction of the numerous solvent particles with larger particles is coarse-grained as a Langevin thermostat is applied to individual particles or to particle pairs. The Langevin thermostat requires a pseudo-random number generator (PRNG) to generate the stochastic force applied to each particle or pair of neighboring particles during each time step in the integration of Newton's equations of motion. In a Single-Instruction-Multiple-Thread (SIMT) GPU parallel computing environment, small batches of random numbers must be generated over thousands of threads and millions of kernel calls. In this communication we introduce a one-PRNG-per-kernel-call-per-thread scheme, in which a micro-stream of pseudorandom numbers is generated in each thread and kernel call. These high quality, statistically robust micro-streams require no global memory for state storage, are more computationally efficient than other PRNG schemes in memory-bound kernels, and uniquely enable the DPD simulation method without requiring communication between threads.

Phillips, Carolyn L. [Applied Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States); Anderson, Joshua A. [Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Glotzer, Sharon C., E-mail: sglotzer@umich.edu [Applied Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States); Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Material Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2011-08-10T23:59:59.000Z

365

Distribution of particles and bubbles in turbulence at small Stokes number  

E-Print Network (OSTI)

The inertia of particles driven by the turbulent flow of the surrounding fluid makes them prefer certain regions of the flow. The heavy particles lag behind the flow and tend to accumulate in the regions with less vorticity, while the light particles do the opposite. As a result of the long-time evolution, the particles distribute over a multi-fractal attractor in space. We consider this distribution using our recent results on the steady states of chaotic dynamics. We describe the preferential concentration analytically and derive the correlation functions of density and the fractal dimensions of the attractor. The results are obtained for real turbulence and are testable experimentally.

Itzhak Fouxon

2011-10-11T23:59:59.000Z

366

Multipartite entangled states in particle mixing  

Science Conference Proceedings (OSTI)

In the physics of flavor mixing, the flavor states are given by superpositions of mass eigenstates. By using the occupation number to define a multiqubit space, the flavor states can be interpreted as multipartite mode-entangled states. By exploiting a suitable global measure of entanglement, based on the entropies related to all possible bipartitions of the system, we analyze the correlation properties of such states in the instances of three- and four-flavor mixing. Depending on the mixing parameters, and, in particular, on the values taken by the free phases, responsible for the CP-violation, entanglement concentrates in certain bipartitions. We quantify in detail the amount and the distribution of entanglement in the physically relevant cases of flavor mixing in quark and neutrino systems. By using the wave packet description for localized particles, we use the global measure of entanglement, suitably adapted for the instance of multipartite mixed states, to analyze the decoherence, induced by the free evolution dynamics, on the quantum correlations of stationary neutrino beams. We define a decoherence length as the distance associated with the vanishing of the coherent interference effects among massive neutrino states. We investigate the role of the CP-violating phase in the decoherence process.

Blasone, M. [Dipartimento di Matematica e Informatica, Universita degli Studi di Salerno, Via Ponte don Melillo, I-84084 Fisciano (Italy); INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (Italy); Dell'Anno, F.; De Siena, S. [Dipartimento di Matematica e Informatica, Universita degli Studi di Salerno, Via Ponte don Melillo, I-84084 Fisciano (Italy); INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (Italy); CNR-INFM Coherentia, Napoli (Italy); Di Mauro, M. [INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (Italy); Illuminati, F. [Dipartimento di Matematica e Informatica, Universita degli Studi di Salerno, Via Ponte don Melillo, I-84084 Fisciano (Italy); INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (Italy); CNR-INFM Coherentia, Napoli (Italy); ISI Foundation for Scientific Interchange, Viale Settimio Severo 65, 00173 Torino (Italy)

2008-05-01T23:59:59.000Z

367

Multipartite entangled states in particle mixing  

E-Print Network (OSTI)

In the physics of flavor mixing, the flavor states are given by superpositions of mass eigenstates. By using the occupation number to define a multiqubit space, the flavor states can be interpreted as multipartite mode-entangled states. By exploiting a suitable global measure of entanglement, based on the entropies related to all possible bipartitions of the system, we analyze the correlation properties of such states in the instances of three- and four-flavor mixing. Depending on the mixing parameters, and, in particular, on the values taken by the free phases, responsible for the CP-violation, entanglement concentrates in preferred bipartitions. We quantify in detail the amount and the distribution of entanglement in the physically relevant cases of flavor mixing in quark and neutrino systems. By using the wave packet description for localized particles, we use the global measure of entanglement, suitably adapted for the instance of multipartite mixed states, to analyze the decoherence induced by the free evolution dynamics on the quantum correlations of stationary neutrino beams. We define a decoherence length as the distance associated with the vanishing of the coherent interference effects among massive neutrino states. We investigate the role of the CP-violating phase in the decoherence process.

M. Blasone; F. Dell'Anno; S. De Siena; M. Di Mauro; F. Illuminati

2007-11-14T23:59:59.000Z

368

Distributed Wind Market Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

Distributed Wind Market Distributed Wind Market Applications T. Forsyth and I. Baring-Gould Technical Report NREL/TP-500-39851 November 2007 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 Technical Report NREL/TP-500-39851 November 2007 Distributed Wind Market Applications T. Forsyth and I. Baring-Gould Prepared under Task No. WER6.7502 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

369

Coal Distribution Database, 2006  

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

7 7 December 2008 2007 Changes in Coal Distribution Table Format and Data Sources The changes in the coal distribution data sources made in 2006 are carried over to the 2007 tables. As in 2006, EIA used data from the EIA-3 survey to distribute synfuel to the electric generation sector on a state level, aggregated with all of the other coal (such as bituminous, subbituminous, and lignite coal) sent to electric generating plants. EIA supplemented the EIA-3 data with previously collected information to determine the mode of transportation from the synfuel plant to the electric generating consumer, which was not reported on the EIA-3A survey form. Although not contained in the EIA-6A master file, this information has been documented in an ancillary spreadsheet in the EIA

370

Distributed Wind Market Applications  

SciTech Connect

Distributed wind energy systems provide clean, renewable power for on-site use and help relieve pressure on the power grid while providing jobs and contributing to energy security for homes, farms, schools, factories, private and public facilities, distribution utilities, and remote locations. America pioneered small wind technology in the 1920s, and it is the only renewable energy industry segment that the United States still dominates in technology, manufacturing, and world market share. The series of analyses covered by this report were conducted to assess some of the most likely ways that advanced wind turbines could be utilized apart from large, central station power systems. Each chapter represents a final report on specific market segments written by leading experts in this field. As such, this document does not speak with one voice but rather a compendium of different perspectives, which are documented from a variety of people in the U.S. distributed wind field.

Forsyth, T.; Baring-Gould, I.

2007-11-01T23:59:59.000Z

371

Enabling distributed petascale science.  

SciTech Connect

Petascale science is an end-to-end endeavour, involving not only the creation of massive datasets at supercomputers or experimental facilities, but the subsequent analysis of that data by a user community that may be distributed across many laboratories and universities. The new SciDAC Center for Enabling Distributed Petascale Science (CEDPS) is developing tools to support this end-to-end process. These tools include data placement services for the reliable, high-performance, secure, and policy-driven placement of data within a distributed science environment; tools and techniques for the construction, operation, and provisioning of scalable science services; and tools for the detection and diagnosis of failures in end-to-end data placement and distributed application hosting configurations. In each area, we build on a strong base of existing technology and have made useful progress in the first year of the project. For example, we have recently achieved order-of-magnitude improvements in transfer times (for lots of small files) and implemented asynchronous data staging capabilities; demonstrated dynamic deployment of complex application stacks for the STAR experiment; and designed and deployed end-to-end troubleshooting services. We look forward to working with SciDAC application and technology projects to realize the promise of petascale science.

Baranovski, A.; Bharathi, S.; Bresnahan, J.; chervenak, A.; Foster, I.; Fraser, D.; Freeman, T.; Gunter, D.; Jackson, K.; Keahey, K.; Kesselman, C.; Konerding, D. E.; Leroy, N.; Link, M.; Livny, M.; Miller, N.; Miller, R.; Oleynik, G.; Pearlman, L.; Schopf, J. M.; Schuler, R.; Tierney, B.; Mathematics and Computer Science; FNL; Univ. of Southern California; Univ. of Chicago; LBNL; Univ. of Wisconsin

2007-01-01T23:59:59.000Z

372

Annual Coal Distribution Report 2012  

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

December 2013 December 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 Annual Coal Distribution Report 2012 This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. iii U.S. Energy Information Administration | Annual Coal Distribution Report 2012 Overview of Annual Coal Distribution Tables, 2012 Introduction The Annual Coal Distribution Report (ACDR) provides detailed information on domestic coal distribution by origin state,

373

Fluctuations in molecular dynamics simulations  

Science Conference Proceedings (OSTI)

Statistical fluctuations of a system about its equilibrium state, monitored in a molecular dynamics simulation, are an effective means of computing the thermodynamic and kinetic properties of interfaces in metals and alloys. In this work, three applications ... Keywords: Fluctuations, Grain boundaries, Interfaces, Interfacial free energy, Mobility, Molecular dynamics

J. J. Hoyt; Z. T. Trautt; M. Upmanyu

2010-03-01T23:59:59.000Z

374

Origin State Destination State  

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

8. Estimated rail transportation rates for coal, state to state, EIA data 8. Estimated rail transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama $13.29 $12.39 $13.93 2.4 12.5 Alabama Georgia $17.62 $17.84 $20.09 6.8 12.6 Alabama Kentucky - W - - - Alabama New Jersey W - - - - Alabama Pennsylvania - W - - - Arizona Arizona W W W W W Colorado Alabama $31.79 $27.66 $24.93 -11.5 -9.9 Colorado Arizona $25.97 W - - - Colorado Arkansas W - - - - Colorado California - $34.20 $46.22 - 35.1 Colorado Colorado $13.04 $7.72 $8.13 -21.1 5.3

375

Origin State Destination State  

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

Estimated rail transportation rates for coal, state to state, EIA data Estimated rail transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama $14.43 $13.59 $15.46 3.5 13.8 Alabama Georgia $19.13 $19.58 $22.30 8.0 13.9 Alabama Kentucky - W - - - Alabama New Jersey W - - - - Alabama Pennsylvania - W - - - Arizona Arizona W W W W W Colorado Alabama $34.52 $30.35 $27.67 -10.5 -8.8 Colorado Arizona $28.20 W - - - Colorado Arkansas W - - - - Colorado California - $37.53 $51.30 - 36.7 Colorado Colorado $14.16 $8.47 $9.02 -20.2 6.6

376

DISTRIBUTION CATEGORY  

Office of Scientific and Technical Information (OSTI)

DISTRIBUTION CATEGORY DISTRIBUTION CATEGORY uc-11 I A W E N C E LIVERMORE IABORATORY University of Cahfmia/Livermore, California/94550 UCRL-52658 CALCULATION OF CHEMICAL EQUILIBRIUM BETWEEN AQUEOUS SOLUTION AND MINERALS: THE EQ3/6 - - SOFTWARE PACKAGE T. J. Wolery MS. date: February 1, 1979 . . - . . - . Tho rcpon rn prepared as an account of work sponsored by the United Stater Government. Seither Lhc Urutcd Stater nor the Umted Stater Department of Energy, nor any of their employees. nor any of their E O ~ ~ ~ B C I O I S . rubcontracton. o r their employees. makes any warranr)., exprcs or !mplwd. or assumes any legal liability or respanability io: the ~ c c u o c y . complctencn or uvfulneu of any miormarlon. apparatcr. product or p r o m s dtwlorcd. or r c p r e v n u that its UP would not infringe privately owned r

377

Studies in Chaotic adiabatic dynamics  

Science Conference Proceedings (OSTI)

Chaotic adiabatic dynamics refers to the study of systems exhibiting chaotic evolution under slowly time-dependent equations of motion. In this dissertation the author restricts his attention to Hamiltonian chaotic adiabatic systems. The results presented are organized around a central theme, namely, that the energies of such systems evolve diffusively. He begins with a general analysis, in which he motivates and derives a Fokker-Planck equation governing this process of energy diffusion. He applies this equation to study the {open_quotes}goodness{close_quotes} of an adiabatic invariant associated with chaotic motion. This formalism is then applied to two specific examples. The first is that of a gas of noninteracting point particles inside a hard container that deforms slowly with time. Both the two- and three-dimensional cases are considered. The results are discussed in the context of the Wall Formula for one-body dissipation in nuclear physics, and it is shown that such a gas approaches, asymptotically with time, an exponential velocity distribution. The second example involves the Fermi mechanism for the acceleration of cosmic rays. Explicit evolution equations are obtained for the distribution of cosmic ray energies within this model, and the steady-state energy distribution that arises when this equation is modified to account for the injection and removal of cosmic rays is discussed. Finally, the author re-examines the multiple-time-scale approach as applied to the study of phase space evolution under a chaotic adiabatic Hamiltonian. This leads to a more rigorous derivation of the above-mentioned Fokker-Planck equation, and also to a new term which has relevance to the problem of chaotic adiabatic reaction forces (the forces acting on slow, heavy degrees of freedom due to their coupling to light, fast chaotic degrees).

Jarzynski, C.

1994-01-01T23:59:59.000Z

378

By Coal Origin State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,896 182 327 - 2,405 Alabama Railroad 1,192 2 74 - 1,268 Alabama River 655 - - - 655 Alabama Truck 50 180 253 - 482 Georgia Total s - - - s Georgia Truck s - - - s Indiana Total - 72 - - 72 Indiana Railroad - 72 - - 72 Tennessee Total - - 7 - 7 Tennessee Truck - - 7 - 7 Origin State Total 1,896

379

New Insights into the Crystal and Electronic Structures of Li[subscript 1+x]V[subscript 1?x]O[subscript 2] from Solid State NMR, Pair Distribution Function Analyses, and First Principles Calculations  

Science Conference Proceedings (OSTI)

Pair distribution function (PDF) analyses of synchrotron data obtained for the anode materials Li{sub 1+x}V{sub 1-x}O{sub 2} (0 {le} x {le} 0.1) have been performed to characterize the short to medium range structural ordering. The data show clear evidence for the magnetically-induced distortion of the V sublattice to form trimers, the distortion persisting at even the highest excess Li content considered of x = 0.1. At least three distinct local environments were observed for the stoichiometric material LiVO{sub 2} in {sup 6}Li nuclear magnetic resonance (NMR) spectroscopy, the environments becoming progressively more disordered as the Li content increases. A two-dimensional Li-Li correlation NMR experiment (POST-C7) was used to identify the resonances corresponding to Li within the same layers. NMR spectra were acquired as a function of the state of charge, a distinct environment for Li in Li{sub 2}VO{sub 2} being observed. The results suggest that disorder within the Li layers (in addition to the presence of Li within the V layers as proposed by Armstrong et al. Nat. Mater.2011, 10, 223-229) may aid the insertion of Li into the Li{sub 1+x}V{sub 1-x}O{sub 2} phase. The previously little-studied Li{sub 2}VO{sub 2} phase was also investigated by hybrid density functional theory (DFT) calculations, providing insights into magnetic interactions, spin-lattice coupling, and Li hyperfine parameters.

Pourpoint, Frédérique; Hua, Xiao; Middlemiss, Derek S.; Adamson, Paul; Wang, Da; Bruce, Peter G.; Grey, Clare P. (SBU); (Cambridge); (St Andrews)

2012-10-29T23:59:59.000Z

380

Scalable data management in distributed information systems  

Science Conference Proceedings (OSTI)

In the era of cloud computing and huge information systems, distributed applications should manage dynamic workloads; i.e., the amount of client requests per time unit may vary frequently and servers should rapidly adapt their computing efforts to those ... Keywords: NoSQL, cloud computing, data management, distributed system, high availability, scalability

M. Remedios Pallardó-Lozoya; Javier Esparza-Peidro; José-Ramón García-Escrivá; Hendrik Decker; Francesc D. Muñoz-Escoí

2011-10-01T23:59:59.000Z

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


381

UNITED STATES  

Office of Legacy Management (LM)

f).~<~~ \--\c :y-,ai F p"- KG f).~<~~ \--\c :y-,ai F p"- KG WASHINOTDN 28.0. C. ' -lr ' \ ' ' --- ".I ?--" ' z I. .~;-4.' J frr*o& 2 ii, - - -4 70-147 LRL:JCD JAN !! 8 1958 Oregon Metallurgical Corporation P. 0. Box 484 Albany, Oregon Attention: Mr. Stephen M. Shelton General Manager Gentlemen: Enclosed is Special Nuclear Material License No. SNM-144, as amended. Very 33uly yours, r:; I,;, ll)~gQ""d".- Lyall Johnson Chief, Licensing Branch Division of Licensing & Regulation Enclosure: SNM-144, as amended Distribution: bRO0 Attn: Dr. H.M.Roth DFMusser NMM MMMann INS JCRyan FIN (2) HSteele LRL SRGustavson LRL Document room Formal file Suppl. file Br & Div rf's ' .b liwwArry s/VW- ' q+ ' yj/ 2; 2-' , COP' 1 J JAM01958 -- UNITED STATES ATOMIC ENERGY COMMISSION

382

Monitoring of the electrical distribution network operation  

Science Conference Proceedings (OSTI)

Distribution network operation is determined by the behaviour of the load. To plan and analyse the electrical network operation, precise modelling of load is substantial. The adequate approach to understand the electrical distribution network operation ... Keywords: SCADA, busloads, distribution network, load monitoring, mathematical model of load, network operation monitoring, state estimation

Jako Kilter; Mati Meldorf

2009-02-01T23:59:59.000Z

383

Dynamical effects in proton breakup from exotic nuclei  

Science Conference Proceedings (OSTI)

This contribution discusses dynamical effects in proton breakup from a weakly bound state in an exotic nucleus on a heavy target. The Coulomb interactions between the proton and the core and the proton and the target are treated to all orders, including also the full multipole expansion of the Coulomb potential. The dynamics of proton Coulomb breakup is compared to that of an equivalent neutron of larger binding energy in order to elucidate the differences with the well understood neutron breakup mechanism. A number of experimentally measurable observables such as parallel momentum distributions, proton angular distributions and total breakup cross sections can be calculated. With respect to nuclear breakup it is found that a proton behaves exactly as a neutron of larger binding energy. The extra 'effective energy' is due to the combined core-target Coulomb barrier. In Coulomb breakup we distinguish the effect of the core-target Coulomb potential (called recoil effect), with respect to which the proton behaves again as a more bound neutron, from the direct proton-target Coulomb potential. The latter gives cross sections about an order of magnitude larger than the recoil term. The two effects give rise to complicated interferences in the parallel momentum distributions. They are instead easily separable in the proton angular distributions which are therefore suggested as a very useful observable for future experimental studies.

Bonaccorso, Angela; Kumar, Ravinder [INFN, Sez. di Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy); INFN, Sez. di Pisa, Largo B. Pontecorvo 3, 56127 Pisa and Department of Physics, Deenbandhu Chhoturam University of Science and Technology, Murthal, Sonepat, Haryana, 131039 (India)

2012-10-20T23:59:59.000Z

384

Dislocation Dynamics  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... Recent Progress in Dislocation Dynamics: Sylvie Aubry1; Athanasios Arsenlis1; Wei Cai2; Steve Fitzgerald3; 1LLNL; 2Stanford University; ...

385

Integrating Small Scale Distributed Generation into a Deregulated Market: Control Strategies and Price Feedback  

E-Print Network (OSTI)

Small scale power generating technologies, such as gas turbines, small hydro turbines, photovoltaics, wind turbines and fuel cells, are gradually replacing conventional generating technologies, for various applications, in the electric power system. The industry restructuring process in the United States is exposing the power sector to market forces, which is creating competitive structures for generation and alternative regulatory structures for the transmission and distribution systems. The potentially conflicting economic and technical demands of the new, independent generators introduce a set of significant uncertainties. What balance between market forces and centralized control will be found to coordinate distribution system operations? How will the siting of numerous small scale generators in distribution feeders impact the technical operations and control of the distribution system? Who will provide ancillary services (such as voltage support and spinning reserves) in the new competitive environment? This project investigates both the engineering and market integration of distributed generators into the distribution system. On the technical side, this project investigates the frequency performance of a distribution system that has multiple small scale generators. Using IEEE sample distribution systems and new dynamic generator models, this project develops general methods for

Judith Cardell; Marija Ili?; Richard D. Tabors

1997-01-01T23:59:59.000Z

386

Annual Coal Distribution Tables  

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

Domestic Distribution of U.S. Coal by Destination State, Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transportation, 2001 (Thousand Short Tons) DESTINATION: Alabama State of Origin by Method of Transportation Electricity Generation Coke Plants Industrial Plants (Except Coke) Residential and Commercial Total Alabama 7,212 375 6,032 3 13,622 Railroad 2,613 170 4,607 - 7,390 River 3,867 - - - 3,867 Truck 732 205 1,424 3 2,365 Illinois 1,458 - - * 1,458 Railroad 167 - - - 167 River 1,291 - - - 1,291 Truck - - - * * Kentucky Total 2,277 - 262 - 2,539 Railroad 1,928 - 165 - 2,093 River 349 - 83 - 432 Truck - - 14 - 14 Eastern 843 - 262 - 1,105 Railroad 843 - 165 - 1,008 River - - 83 - 83 Truck - - 14 - 14 Western 1,435 - - - 1,435 Railroad 1,086 - - - 1,086 River 349 - - - 349 Pennsylvania Total 242 - 62 - 304 Great Lakes - - 60 - 60 Railroad - - * - * River 242 - -

387

Annual Coal Distribution Tables  

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

and Foreign Distribution of U.S. Coal by State of Origin, 2001 and Foreign Distribution of U.S. Coal by State of Origin, 2001 State / Region Domestic Foreign Total Alabama 14,828 4,508 19,336 Alaska 825 698 1,524 Arizona 13,143 - 13,143 Arkansas 13 - 13 Colorado 32,427 894 33,321 Illinois 33,997 285 34,283 Indiana 36,714 - 36,714 Kansas 176 - 176 Kentucky Total 131,546 2,821 134,367 East 107,000 2,707 109,706 West 24,547 114 24,660 Louisiana 3,746 - 3,746 Maryland 4,671 319 4,990 Mississippi 475 - 475 Missouri 366 - 366 Montana 38,459 485 38,944 New Mexico 28,949 - 28,949 North Dakota 30,449 - 30,449 Ohio 25,463 12 25,475 Oklahoma 1,710 - 1,710 Pennsylvania Total 64,392 6,005 70,397 Anthracite 2,852 205 3,057 Bituminous 61,540 5,800 67,340 Tennessee 3,346 28 3,374 Texas 45,019 31 45,050 Utah 24,761 2,144 26,905 Virginia 25,685 7,071 32,756 Washington 4,623 - 4,623 West Virginia Total 144,584

388

Annual Coal Distribution Tables  

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

Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Destination, 2001 Coal-Exporting State and Destination Metallurgical Steam Total Alaska - 761 761 South Korea - 761 761 Alabama 4,667 167 4,834 Argentina 155 - 155 Belgium 989 - 989 Brazil 1,104 - 1,104 Bulgaria 82 - 82 Egypt 518 - 518 Italy 115 - 115 Netherlands 56 83 139 Spain 412 84 496 Turkey 581 - 581 United Kingdom 654 - 654 Kentucky 2,130 - 2,130 Canada 920 - 920 France 22 - 22 Iceland 9 - 9 Italy 430 - 430 Netherlands 417 - 417 Spain 9 - 9 United Kingdom 323 - 323 Pennsylvania 1,086 14,326 15,722 Belgium - 203 203 Brazil 372 - 373 Canada - 12,141 12,418 France - 84 84 Germany 495 165 661 Ireland - 136 136 Netherlands 219 879 1,097 Norway - - 7 Peru - - 21 Portugal - 634 634 United Kingdom - 85 85 Venezuela - - 3 Utah - 1,420 1,420 Japan - 1,334 1,334 Taiwan - 86 86 Virginia 4,531

389

Distribution Category:  

Office of Legacy Management (LM)

- - Distribution Category: Remedial Action and Decommissioning Program (UC-70A) DOE/EV-0005/48 ANL-OHS/HP-84-104 ARGONNE NATIONAL LABORATORY 9700 South Cass Avenue Argonne, Illinois 60439 FORMERLY UTILIZED MXD/AEC SITES REMEDIAL ACTION PROGRAM RADIOLOGICAL SURVEY OF THE HARSHAW CHEMICAL COMPANY CLEVELAND. OHIO Prepared by R. A. Wynveen Associate Division Director, OHS W. H. Smith Senior Health Physicist C. M. Sholeen Health Physicist A. L. Justus Health Physicist K. F. Flynn Health Physicist Radiological Survey Group Health Physics Section Occupational Health and Safety Division April 1984 Work Performed under Budget Activity DOE KN-03-60-40 and ANL 73706 iii PREFACE AND EXECUTIVE SUMMARY This is one in a series of reports resulting from a program initiated

390

Parton distributions.  

E-Print Network (OSTI)

-section for the virtual photon-proton interaction can be written in the factorized form ?(ep ? eX) = ? i CDISi (x, ?s(Q2))? fi(x,Q2) where Q2 is the photon virtuality, x = Q22m? , the mo- mentum fraction of parton (?=energy transfer in the lab frame), and the fi(x,Q2... distribution comes from inclusive jet measure- ments by D0 and CDF at Tevatron. They mea- 0 50 100 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Dc 2 k Valence quarks Figure 6. ??2 against the isospin violating parameter ?. sure d?/dET d? for central rapidity CDF...

Thorne, Robert S

391

Dynamic Solid State Lighting Matthew Aldrich  

E-Print Network (OSTI)

to the fluorescent technology's lower color rendering ability and quality of light [26, 4, 58, 24]. LED implicit and explicit user goals. In this work, the focus in on the efficient control of a LED-based lighting network. This thesis presents a first-of-its-kind pentachromatic LED-based lighting network

392

State Agencies  

NLE Websites -- All DOE Office Websites (Extended Search)

Agencies Beatrice State Developmental Center, Nebraska Black Hills State University, SD, South Dakota Fergus Falls State Hospital, Minnesota Hastings Regional Center, Nebraska...

393

Zero-temperature Glauber dynamics on Z^d  

E-Print Network (OSTI)

We study zero-temperature Glauber dynamics on \\Z^d, which is a dynamic version of the Ising model of ferromagnetism. Spins are initially chosen according to a Bernoulli distribution with density p, and then the states are continuously (and randomly) updated according to the majority rule. This corresponds to the sudden quenching of a ferromagnetic system at high temperature with an external field, to one at zero temperature with no external field. Define p_c(\\Z^d) to be the infimum over p such that the system fixates at '+' with probability 1. It is a folklore conjecture that p_c(\\Z^d) = 1/2 for every 2 \\le d \\in \\N. We prove that p_c(\\Z^d) \\to 1/2 as d \\to \\infty.

Robert Morris

2008-09-02T23:59:59.000Z

394

Surface Chemical Dynamics  

NLE Websites -- All DOE Office Websites (Extended Search)

Surface Chemical Dynamics Surface Chemical Dynamics The goal of the Surface Chemical Dynamics Program is to elucidate the underlying physical processes that determine the products (selectivity) and yield (efficiency) of chemical transformations relevant to energy-related chemistry on catalytic and nanostructured surfaces. Achieving this end requires understanding the evolution of the reactant-molecule/surface complex as molecules adsorb, bonds dissociate, surface species diffuse, new bonds form and products desorb. The pathways and time scales of these processes are ultimately determined by a multidimensional potential energy surface that is a function of the geometric and electronic structures of the surface and the reactant, product, intermediate and transition-state molecular and atomic species.

395

By Coal Destination State  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report 2010 Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 7,906 821 1,242 - 9,969 Alabama Railroad 3,604 49 285 - 3,938 Alabama River 3,979 - - - 3,979 Alabama Truck 322 773 957 - 2,051 Colorado Total 2,113 - - - 2,113 Colorado Railroad 2,113 - - - 2,113 Illinois Total 336 - - - 336 Illinois River 336 - - - 336 Indiana Total 1,076

396

By Coal Origin State  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report 2010 Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 7,906 821 1,242 - 9,969 Alabama Railroad 3,604 49 285 - 3,938 Alabama River 3,979 - - - 3,979 Alabama Truck 322 773 957 - 2,051 Florida Total - - 15 - 15 Florida Railroad - - 11 - 11 Florida Truck - - 3 - 3 Georgia Total 196 - 15 - 211 Georgia Railroad 189 - 1 - 190 Georgia Truck

397

Towards a dynamical theory of observation  

E-Print Network (OSTI)

We introduce a model of classical and quantum observation based on contextuality and dynamically evolving apparatus. Power sets of classical bits model the four classical states of elementary detectors, viz. the two normal yes/no signal states, the faulty or decommissioned state and the non-existence state. Operators over power set registers are used to describe various physical scenarios such as the construction and decommissioning of physical devices in otherwise empty laboratories, the dynamics of signal states over those detectors, the extraction of information from those states, and multiple observers. We apply our quantum formalism to the Elitzur-Vaidman bomb-tester experiment and the Hardy paradox experiment.

George Jaroszkiewicz

2008-12-16T23:59:59.000Z

398

Mapping densities in a noisy state space  

E-Print Network (OSTI)

Weak noise smooths out fractals in a chaotic state space and introduces a maximum attainable resolution to its structure. The balance of noise and deterministic stretching/contraction in each neighborhood introduces local invariants of the dynamics that can be used to partition the state space. We study the local discrete-time evolution of a density in a two-dimensional hyperbolic state space, and use the asymptotic eigenfunctions for the noisy dynamics to formulate a new state space partition algorithm.

Domenico Lippolis

2013-03-05T23:59:59.000Z

399

Modeling System Development for the Evaluation of Dynamic Air...  

NLE Websites -- All DOE Office Websites (Extended Search)

supply and demand. The challenges of dynamic analysis of emissions impacts from the energy sector have substantially increased with a new focus on the emerging distributed...

400

Efficient Bayesian estimation of Markov model transition matrices with given stationary distribution  

E-Print Network (OSTI)

Direct simulation of biomolecular dynamics in thermal equilibrium is challenging due to the metastable nature of conformation dynamics and the computational cost of molecular dynamics. Biased or enhanced sampling methods may improve the convergence of expectation values of equilibrium probabilities and expectation values of stationary quantities significantly. Unfortunately the convergence of dynamic observables such as correlation functions or timescales of conformational transitions relies on direct equilibrium simulations. Markov state models are well suited to describe both, stationary properties and properties of slow dynamical processes of a molecular system, in terms of a transition matrix for a jump process on a suitable discretiza- tion of continuous conformation space. Here, we introduce statistical estimation methods that allow a priori knowledge of equilibrium probabilities to be incorporated into the estimation of dynamical observables. Both, maximum likelihood methods and an improved Monte Carlo sampling method for reversible transition ma- trices with fixed stationary distribution are given. The sampling approach is applied to a toy example as well as to simulations of the MR121-GSGS-W peptide, and is demonstrated to converge much more rapidly than a previous approach in [F. Noe, J. Chem. Phys. 128, 244103 (2008)

Benjamin Trendelkamp-Schroer; Frank Noe

2013-01-10T23:59:59.000Z

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


401

Baldrige Impacts, State by State  

Science Conference Proceedings (OSTI)

... Several states are providing coverage for other states without current programs. To learn more about impacts and benefits in each state select a ...

402

Renewable Portfolio Standards in the United States - A Status Report with Data Through 2007  

E-Print Network (OSTI)

adopting solar or distributed generation (DG) set-asides soenergy zone distributed generation Electric Reliabilitysolar and/or distributed generation set-asides within state

Wiser, Ryan

2008-01-01T23:59:59.000Z

403

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 1,040 18 80 - 1,138 Alabama River 668 - - - 668 Alabama Truck 52 164 223 - 438 Alabama Total 1,760 181 303 - 2,244 Colorado Railroad 600 - - - 600 Illinois River 203 - 13 - 217 Indiana River 180 - - - 180 Kentucky Railroad 465 - 10 - 475 Kentucky (West) Railroad 465 - 10 - 475 Utah Railroad 18 - - -

404

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 914 12 66 - 992 Alabama River 949 - - - 949 Alabama Truck 78 189 237 - 504 Alabama Total 1,941 201 303 - 2,445 Colorado Railroad 575 - - - 575 Illinois River 99 - - - 99 Indiana River 241 - - - 241 Kentucky Railroad 827 - 12 - 839 Kentucky (East) Railroad 76 - - - 76 Kentucky (West) Railroad

405

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 839 11 83 - 933 Alabama River 1,347 - - - 1,347 Alabama Truck 118 216 236 - 571 Alabama Total 2,304 227 320 - 2,850 Colorado Railroad 514 - - - 514 Illinois River 99 - - - 99 Indiana River 172 - - - 172 Kentucky Railroad 635 - 11 - 647 Kentucky (East) Railroad 45 - - - 45 Kentucky (West)

406

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 944 16 77 - 1,037 Alabama River 781 - - - 781 Alabama Truck 77 224 220 - 521 Alabama Total 1,802 240 298 - 2,340 Colorado Railroad 385 - - - 385 Illinois River 15 - - - 15 Indiana Railroad 1 - - - 1 Indiana River 350 - - - 350 Indiana Total 351 - - - 351 Kentucky Railroad 682 - 2 - 685 Kentucky (East)

407

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 907 10 59 - 975 Alabama River 903 - - - 903 Alabama Truck 150 144 253 - 546 Alabama Total 1,960 153 311 - 2,424 Colorado Railroad 640 - - - 640 Illinois River 123 - - - 123 Indiana River 312 - - - 312 Kentucky Railroad 622 - 36 - 658 Kentucky (East) Railroad 96 - 36 - 132 Kentucky (West)

408

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,896 182 327 - 2,405 Alabama Railroad 1,192 2 74 - 1,268 Alabama River 655 - - - 655 Alabama Truck 50 180 253 - 482 Colorado Total 468 - - - 468 Colorado Railroad 468 - - - 468 Illinois Total 90 - 26 - 116 Illinois River 90 - 26 - 116 Indiana Total 181 - - - 181 Indiana River 181 -

409

By Coal Destination State  

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

2 2 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,407 184 231 - 1,822 Alabama Railroad 801 9 49 - 859 Alabama River 519 - - - 519 Alabama Truck 87 175 182 - 444 Colorado Total 82 - - - 82 Colorado Railroad 82 - - - 82 Illinois Total 149 - 14 - 163 Illinois Railroad 44 - - - 44 Illinois River 105 - 14 - 119 Indiana Total 99 - - - 99

410

By Coal Origin State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 914 12 66 - 992 Alabama River 949 - - - 949 Alabama Truck 78 189 237 - 504 Alabama Total 1,941 201 303 - 2,445 Georgia Railroad 23 - - - 23 Georgia Truck s - - - s Georgia Total 23 - - - 23 Indiana Railroad - 115 - - 115 Indiana Truck - 71 - - 71 Indiana Total - 186 - - 186 Tennessee Railroad - - 1 - 1 Tennessee Truck

411

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,486 155 328 - 1,970 Alabama Railroad 1,020 - 75 - 1,095 Alabama River 417 - - - 417 Alabama Truck 49 155 253 - 458 Colorado Total 195 - - - 195 Colorado Railroad 195 - - - 195 Illinois Total 127 - 18 - 145 Illinois Railroad 20 - - - 20 Illinois River 107 - 18 - 125 Indiana Total

412

By Coal Origin State  

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

2 2 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2012 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,407 184 231 - 1,822 Alabama Railroad 801 9 49 - 859 Alabama River 519 - - - 519 Alabama Truck 87 175 182 - 444 Georgia Total s - s - s Georgia Truck s - s - s Indiana Total - 98 - - 98 Indiana Railroad - 98 - - 98 Kentucky Total - - 12 - 12 Kentucky Truck - - 12 - 12 Ohio Total - 30 - - 30 Ohio

413

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,942 160 335 - 2,437 Alabama Railroad 1,149 - 57 - 1,206 Alabama River 741 - - - 741 Alabama Truck 52 160 278 - 490 Colorado Total 621 2 - - 623 Colorado Railroad 621 2 - - 623 Illinois Total 113 - 11 - 123 Illinois River 113 - 11 - 123 Indiana Total 265 - - - 265 Indiana Railroad

414

A Dynamic Model of Thundercloud Electric Fields  

Science Conference Proceedings (OSTI)

A dynamic interactive computer model of the electrical behavior of a thundercloud surrounded by the distributed atmosphere, earth, ionosphere circuit is described. The electrification mechanisms in the model are represented by current or voltage ...

John S. Nisbet

1983-12-01T23:59:59.000Z

415

EIA - Coal Distribution  

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

Annual Coal Distribution Report > Annual Coal Distribution Archives Annual Coal Distribution Archive Release Date: February 17, 2011 Next Release Date: December 2011 Domestic coal...

416

Simulating Price Responsive Distributed Resources  

SciTech Connect

Distributed energy resources (DER) include distributed generation, storage, and responsive demand. The integration of DER into the power system control framework is part of the evolutinary advances that allow these resources to actively particpate in the energy balance equation. Price can provide a powerful signal for independent decision-making in distributed control strategies. To study the impact of price responsive DER on the electric power system requires generation and load models that can capture the dynamic coupling between the energy market and the physical operation of the power system in appropriate time frames. This paper presents modeling approaches for simulating electricity market price responsive DER, and introduces a statistical mechanics approach to modeling the aggregated response of a transformed electric system of pervasive, transacting DER.

Lu, Ning; Chassin, David P.; Widergren, Steven E.

2004-10-15T23:59:59.000Z

417

Dynamic substructure method for elastic fractal structures  

Science Conference Proceedings (OSTI)

We investigate the fractal properties on the distribution of natural frequencies of elastic structures. We use the multi-level-multi-scale dynamic substructure method so that we need only to eliminate a few nodes in advancing a fractal level. We shall ... Keywords: Dynamic condensation, Elastic fractal structures, Frequency power laws, Multi-level-multi-scale

A. Y. T. Leung

2011-02-01T23:59:59.000Z

418

Information sharing and security in dynamic coalitions  

Science Conference Proceedings (OSTI)

Today, information sharing is critical to almost every institution. There is no more critical need for information sharing than during an international crisis, when international coalitions dynamically form. In the event of a crisis, whether it is humanitarian ... Keywords: access control, distributed systems, dynamic coalitions, information security

Charles E. Phillips, Jr.; T.C. Ting; Steven A. Demurjian

2002-06-01T23:59:59.000Z

419

Pointer states via engineered dissipation  

SciTech Connect

Pointer states are long-lasting high-fidelity states in open quantum systems. We show how any pure state in a non-Markovian open quantum system can be made to behave as a pointer state by suitably engineering the coupling to the environment via open-loop periodic control. Engineered pointer states are constructed as approximate fixed points of the controlled open-system dynamics, in such a way that they are guaranteed to survive over a long time with a fidelity determined by the relative precision with which the dynamics is engineered. We provide quantitative minimum-fidelity bounds by identifying symmetry and ergodicity conditions that the decoherence-inducing perturbation must obey in the presence of control, and develop explicit pulse sequences for engineering any desired set of orthogonal states as pointer states. These general control protocols are validated through exact numerical simulations as well as semiclassical approximations in realistic single- and two-qubit dissipative systems. We also examine the role of control imperfections, and show that while pointer-state engineering protocols are highly robust in the presence of systematic pulse errors, the latter can also lead to unintended pointer-state generation in dynamical decoupling implementations, explaining the initial-state selectivity observed in recent experiments.

Khodjasteh, Kaveh; Viola, Lorenza [Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755 (United States); Dobrovitski, Viatcheslav V. [Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)

2011-08-15T23:59:59.000Z

420

Entanglement Amplification in the Non-Perturbative Dynamics of Modular Quantum Systems  

E-Print Network (OSTI)

We analyze the conditions for entanglement amplification between distant and not directly interacting quantum objects by their common coupling to media with static modular structure and subject to a local (single-bond) quenched dynamics. We show that in the non-perturbative regime of the dynamics the initial end-to-end entanglement is strongly amplified and, moreover, can be distributed efficiently between distant objects. Due to its intrinsic local and non-perturbative nature the dynamics is fast and robust against thermal fluctuations, and its control is undemanding. We show that the origin of entanglement amplification lies in the interference of the ground state and at most one of the low-lying energy eigenstates. The scheme can be generalized to provide a fast and efficient router for generating entanglement between simultaneous multiple users.

Abolfazl Bayat; Salvatore M. Giampaolo; Fabrizio Illuminati; Martin B. Plenio

2013-03-15T23:59:59.000Z

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


421

Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Distribution Distribution Infrastructure Tax Credit to someone by E-mail Share Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax Credit on Facebook Tweet about Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax Credit on Twitter Bookmark Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax Credit on Google Bookmark Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax Credit on Delicious Rank Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax Credit on Digg Find More places to share Alternative Fuels Data Center: Biofuels Distribution Infrastructure Tax Credit on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Biofuels Distribution Infrastructure Tax Credit

422

ARM - Measurement - Hydrometeor Size Distribution  

NLE Websites -- All DOE Office Websites (Extended Search)

Size Distribution Size Distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor Size Distribution The number of hydrometeors observed in a given size range. Categories Cloud Properties, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments LDIS : Laser Disdrometer Datastreams LDIS : Laser Disdrometer Datastreams PARS2 : OTT Parsivel2 Laser Disdrometer VDIS : Video Disdrometer Datastreams VDIS : Video Disdrometer Drop Size Distribution

423

Dynamic nuclear polarization for NMR : applications and hardware development  

E-Print Network (OSTI)

solid State NMR (SSNMR) can determine molecular as well as supermolecular structure and dynamics. The low signal intensities make many of these experiments prohibitively long. Dynamic Nuclear Polarization provides a method ...

Casey, Andrew (Andrew Byron)

2008-01-01T23:59:59.000Z

424

The Frequency Distribution of Thunderstorm Durations  

Science Conference Proceedings (OSTI)

The frequency distributions of thunderstorm durations were analyzed for 30 years at 36 stations in the United States in order to develop an appropriate summarizing statistic for durations. The incomplete gamma function provides a close fit to the ...

P. J. Robinson; D. R. Easterling

1988-01-01T23:59:59.000Z

425

Transition from Exponential to Power Law Distributions in a Chaotic Market  

E-Print Network (OSTI)

Economy is demanding new models, able to understand and predict the evolution of markets. To this respect, Econophysics offers models of markets as complex systems, that try to comprehend macro-, system-wide states of the economy from the interaction of many agents at micro-level. One of these models is the gas-like model for trading markets. This tries to predict money distributions in closed economies and quite simply, obtains the ones observed in real economies. However, it reveals technical hitches to explain the power law distribution, observed in individuals with high incomes. In this work, non linear dynamics is introduced in the gas-like model in way that an effort to overcome these flaws. A particular chaotic dynamics is used to break the pairing symmetry of agents $(i,j)\\Leftrightarrow(j,i)$. The results demonstrate that a "chaotic gas-like model" can reproduce the Exponential and Power law distributions observed in real economies. Moreover, it controls the transition between them. This may give some insight of the micro-level causes that originate unfair distributions of money in a global society. Ultimately, the chaotic model makes obvious the inherent instability of asymmetric scenarios, where sinks of wealth appear and doom the market to extreme inequality.

Carmen Pellicer-Lostao; Ricardo Lopez-Ruiz

2010-11-23T23:59:59.000Z

426

A Gaussian process-based approach for handling uncertainty in vehicle dynamics simulation.  

Science Conference Proceedings (OSTI)

Advances in vehicle modeling and simulation in recent years have led to designs that are safer, easier to handle, and less sensitive to external factors. Yet, the potential of simulation is adversely impacted by its limited ability to predict vehicle dynamics in the presence of uncertainty. A commonly occurring source of uncertainty in vehicle dynamics is the road-tire friction interaction, typically represented through a spatially distributed stochastic friction coefficient. The importance of its variation becomes apparent on roads with ice patches, where if the stochastic attributes of the friction coefficient are correctly factored into real time dynamics simulation, robust control strategies could be designed to improve transportation safety. This work concentrates on correctly accounting in the nonlinear dynamics of a car model for the inherent uncertainty in friction coefficient distribution at the road/tire interface. The outcome of this effort is the ability to quantify the effect of input uncertainty on a vehicle's trajectory and the associated escalation of risk in driving. By using a space-dependent Gaussian process, the statistical representation of the friction coefficient allows for consistent space dependence of randomness. The approach proposed allows for the incorporation of noise in the observed data and a nonzero mean for inhomogeneous distribution of the friction coefficient. Based on the statistical model considered, consistent friction coefficient sample distributions are generated over large spatial domains of interest. These samples are subsequently used to compute and characterize the statistics associated with the dynamics of a nonlinear vehicle model. The information concerning the state of the road and thus the friction coefficient is assumed available (measured) at a limited number of points by some sensing device that has a relatively homogeneous noise field (satellite picture or ground sensors, for instance). The methodology proposed can be modified to incorporate information that is sensed by each individual car as it advances along its trajectory.

Schmitt, K.; Madsen, J.; Anitescu, M.; Negrut, D.; Mathematics and Computer Science; Univ. of Wisconsin at Madison

2009-01-01T23:59:59.000Z

427

CUMULVS: Collaborative infrastructure for developing distributed simulations  

SciTech Connect

The CUMULVS software environment provides remote collaboration among scientists by allowing them to dynamically attach to, view, and steer a running simulation. Users can interactively examine intermediate results on demand, saving effort for long-running applications gone awry. In addition, it provides fault tolerance to distributed applications via user-directed checkpointing, heterogeneous task migration and automatic restart. This talk describes CUMULVS and how this tool benefits scientists developing large distributed applications.

Kohl, J.A.; Papadopoulos, P.M.; Geist, G.A. II

1997-03-01T23:59:59.000Z

428

Report on Distributed Generation Penetration Study  

Science Conference Proceedings (OSTI)

This report documents part of a multiyear research program dedicated to the development of requirements to support the definition, design, and demonstration of a distributed generation-electric power system interconnection interface concept. The report focuses on the dynamic behavior of power systems when a significant portion of the total energy resource is distributed generation. It also focuses on the near-term reality that the majority of new DG relies on rotating synchronous generators for energy conversion.

Miller, N.; Ye, Z.

2003-08-01T23:59:59.000Z

429

Dynamic neurotransmitter interactions measured with PET  

SciTech Connect

Positron emission tomography (PET) has become a valuable interdisciplinary tool for understanding physiological, biochemical and pharmacological functions at a molecular level in living humans, whether in a healthy or diseased state. The utility of tracing chemical activity through the body transcends the fields of cardiology, oncology, neurology and psychiatry. In this, PET techniques span radiochemistry and radiopharmaceutical development to instrumentation, image analysis, anatomy and modeling. PET has made substantial contributions in each of these fields by providing a,venue for mapping dynamic functions of healthy and unhealthy human anatomy. As diverse as the disciplines it bridges, PET has provided insight into an equally significant variety of psychiatric disorders. Using the unique quantitative ability of PET, researchers are now better able to non-invasively characterize normally occurring neurotransmitter interactions in the brain. With the knowledge that these interactions provide the fundamental basis for brain response, many investigators have recently focused their efforts on an examination of the communication between these chemicals in both healthy volunteers and individuals suffering from diseases classically defined as neurotransmitter specific in nature. In addition, PET can measure the biochemical dynamics of acute and sustained drug abuse. Thus, PET studies of neurotransmitter interactions enable investigators to describe a multitude of specific functional interactions in the human brain. This information can then be applied to understanding side effects that occur in response to acute and chronic drug therapy, and to designing new drugs that target multiple systems as opposed to single receptor types. Knowledge derived from PET studies can be applied to drug discovery, research and development (for review, see (Fowler et al., 1999) and (Burns et al., 1999)). Here, we will cover the most substantial contributions of PET to understanding biologically distinct neurochemical systems that interact to produce a variety of behaviors and disorders. Neurotransmitters are neither static nor isolated in their distribution. In fact, it is through interactions with other neurochemically distinct systems that the central nervous system (CNS) performs its vital role in sustaining life. Exclusive quantitative capabilities intrinsic to PET make this technology a suitable experimental tool to measure not only the regional distribution of specific receptors and their subtypes, but also the dynamic properties of neuroreceptors and their inherent influence on related neurotransmitter pathways. The ability to investigate dynamic properties in a non-invasive and reproducible manner provides a powerful tool that can extend our current knowledge of these interactions. Coupled with innovative paradigms including pharmacologic manipulations, physiologic models and reconstruction theories, knowledge derived from PET studies can greatly advance our understanding of normal and abnormal brain function.

Schiffer, W.K.; Dewey, S.L.

2001-04-02T23:59:59.000Z

430

An Explanation of Microwave Effects by Expansion of Transit State ...  

Science Conference Proceedings (OSTI)

... State Theories with Disturbed Velocity Distributions by Microwave. Author(s), Motoyasu Sato, Jun Fukushima, kyouichiro Kashimura, Sadatugu Takayama.

431

Quantum Key Distribution Protocol with User Authentication  

E-Print Network (OSTI)

We propose a quantum key distribution protocol with quantum based user authentication. User authentication is executed by validating the correlation of GHZ states. Alice and Bob can distribute a secure key using the remaining GHZ states after authentication. This secret key does not leak even to the arbitrator by the properties of the entanglement. We will show that our protocol is secure against the cloning attack.

Lee, H; Lee, D; Lim, J; Yang, H J; Lee, Hwayean; Lee, Sangjin; Lee, Donghoon; Lim, Jongin; Yang, HyungJin

2005-01-01T23:59:59.000Z

432

Quarterly Coal Distribution Report - Energy Information Administration  

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

Quarterly Coal Distribution Report Quarterly Coal Distribution Report Release Date: October 01, 2013 | Next Release Date: January 3, 2014 | full report The Quarterly Coal Distribution Report (QCDR) provides detailed U.S. domestic coal distribution data by coal origin state, coal destination state, mode of transportation, and consuming sector. Quarterly data for all years are preliminary and will be superseded by the release of the corresponding "Annual Coal Distribution Report." Highlights for the second quarter 2013: Total domestic coal distribution was an estimated 205.8 million short tons (mmst) in the second quarter 2013. This value is 0.7 mmst (i.e. 0.3 percent) higher than the previous quarter and 6.3 mmst (i.e. 3.1 percent) higher than the second quarter of 2012 estimates.

433

Ground State Entanglement Energetics  

E-Print Network (OSTI)

We consider the ground state of simple quantum systems coupled to an environment. In general the system is entangled with its environment. As a consequence, even at zero temperature, the energy of the system is not sharp: a projective measurement can find the system in an excited state. We show that energy fluctuation measurements at zero temperature provide entanglement information. For two-state systems which exhibit a persistent current in the ground state, energy fluctuations and persistent current fluctuations are closely related. The harmonic oscillator serves to illustrate energy fluctuations in a system with an infinite number of states. In addition to the energy distribution we discuss the energy-energy time-correlation function in the zero-temperature limit.

M. Buttiker; A. N. Jordan

2005-01-04T23:59:59.000Z

434

By Coal Origin State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 4th Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 944 16 77 - 1,037 Alabama River 781 - - - 781 Alabama Truck 77 224 220 - 521 Alabama Total 1,802 240 298 - 2,340 Florida Railroad - - 11 - 11 Georgia Railroad 52 - - - 52 Georgia Truck s - 5 - 5 Georgia Total 52 - 5 - 57 Indiana Railroad - 65 - - 65 Origin State Total 1,855 304 313 - 2,472 Railroad 996 81 89 - 1,165

435

By Coal Origin State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 907 10 59 - 975 Alabama River 903 - - - 903 Alabama Truck 150 144 253 - 546 Alabama Total 1,960 153 311 - 2,424 Florida Truck - - 3 - 3 Georgia Railroad 105 - 1 - 106 Georgia Truck s - 4 - 4 Georgia Total 105 - 5 - 110 Indiana Railroad - 106 - - 106 Tennessee Railroad - - 1 - 1 Origin State Total 2,065 259 321 - 2,644

436

By Coal Origin State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 3rd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 839 11 83 - 933 Alabama River 1,347 - - - 1,347 Alabama Truck 118 216 236 - 571 Alabama Total 2,304 227 320 - 2,850 Georgia Railroad 9 - - - 9 Georgia Truck 7 - 5 - 12 Georgia Total 16 - 5 - 21 Indiana Railroad - 126 - - 126 Tennessee Truck - - 1 - 1 Origin State Total 2,320 353 325 - 2,998 Railroad 848 137 83 - 1,068

437

By Coal Origin State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 3rd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,942 160 335 - 2,437 Alabama Railroad 1,149 - 57 - 1,206 Alabama River 741 - - - 741 Alabama Truck 52 160 278 - 490 Georgia Total s - 3 - 3 Georgia Truck s - 3 - 3 Ohio Total - 3 - - 3 Ohio River - 3 - - 3 Origin State Total 1,942 163 338 - 2,443 Railroad 1,149 - 57 - 1,206 River 741 3 - - 745 Truck 52 160

438

By Coal Origin State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 1,040 18 80 - 1,138 Alabama River 668 - - - 668 Alabama Truck 52 164 223 - 438 Alabama Total 1,760 181 303 - 2,244 Georgia Truck s - 2 - 2 Indiana Railroad - 148 - - 148 Ohio Railroad - 25 - - 25 Ohio River - 18 - - 18 Ohio Total - 43 - - 43 Origin State Total 1,760 373 305 - 2,438 Railroad 1,040 191 80 - 1,311 River

439

Chromatin States Accurately Classify Cell Differentiation Stages  

E-Print Network (OSTI)

Gene expression is controlled by the concerted interactions between transcription factors and chromatin regulators. While recent studies have identified global chromatin state changes across cell-types, it remains unclear to what extent these changes are co-regulated during cell-differentiation. Here we present a comprehensive computational analysis by assembling a large dataset containing genome-wide occupancy information of 5 histone modifications in 27 human cell lines (including 24 normal and 3 cancer cell lines) obtained from the public domain, followed by independent analysis at three different representations. We classified the differentiation stage of a cell-type based on its genome-wide pattern of chromatin states, and found that our method was able to identify normal cell lines with nearly 100 % accuracy. We then applied our model to classify the cancer cell lines and found that each can be unequivocally classified as differentiated cells. The differences can be in part explained by the differential activities of three regulatory modules associated with embryonic stem cells. We also found that the ‘‘hotspot’ ’ genes, whose chromatin states change dynamically in accordance to the differentiation stage, are not randomly distributed across the genome but tend to be embedded in multi-gene chromatin

Jessica L. Larson; Guo-cheng Yuan

2012-01-01T23:59:59.000Z

440

The mass distribution of quark matter  

E-Print Network (OSTI)

We analyze lattice QCD results on the equation of state in terms of infinitely many non-interacting massive ideal gas components. We find that the entire pressure-temperature curve can be described by a temperature independent mass distribution at vanishing chemical potential. We collect strong indications for a mass gap in this distribution, conjectured to be related confinement.

Biro, T S; Van, P; Zimányi, J

2006-01-01T23:59:59.000Z

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


441

Joint Distributions for Interacting Fluid Queues  

Science Conference Proceedings (OSTI)

Motivated by recent traffic control models in ATM systems, we analyse three closely related systems of fluid queues, each consisting of two consecutive reservoirs, in which the first reservoir is fed by a two-state (on and off) Markov source. The first ... Keywords: feedback, fluid queue, joint distribution, stationary distribution, tandem queue, traffic shaper

Dirk P. Kroese; Werner R. W. Scheinhardt

2001-03-01T23:59:59.000Z

442

Variability of PV on Distribution Systems  

Science Conference Proceedings (OSTI)

In 2010, the Electric Power Research Institute (EPRI) along with several utilities began collecting high-resolution monitoring data on distributed solar photovoltaic (PV) systems throughout the United States. Included in these monitoring data are single-module PV systems distributed along selected feeders as well as several larger PV systems (up to 1.4 MW). Utilizing data from these sites, this report focuses specifically on examining the measured variability of solar PV distributed throughout a ...

2012-12-13T23:59:59.000Z

443

Electron-nuclear correlations for photo-induced dynamics in molecular dimers  

E-Print Network (OSTI)

Ultrafast photoinduced dynamics of electronic excitation in molecular dimers is drastically affected by the dynamic reorganization of inter- and intra- molecular nuclear configuration modeled by a quantized nuclear degree of freedom [Cina et. al, J. Chem Phys. {118}, 46 (2003)]. The dynamics of the electronic population and nuclear coherence is analyzed by solving the chain of coupled differential equations for %mean coordinate, population inversion, electron-vibrational correlation, etc. [Prezhdo, Pereverzev, J. Chem. Phys. {113} 6557 (2000)]. Intriguing results are obtained in the approximation of a small change of the nuclear equilibrium upon photoexcitation. In the limiting case of resonance between the electronic energy gap and the frequency of the nuclear mode these results are justified by comparison to the exactly solvable Jaynes-Cummings model. It is found that the photoinduced processes in the model dimer are arranged according to their time scales: (i) fast scale of nuclear motion, (ii) intermediate scale of dynamical redistribution of electronic population between excited states as well as growth and dynamics of electron-nuclear correlation, (iii) slow scale of electronic population approach to the quasi-equilibrium distribution, decay of electron-nuclear correlation, and decrease of the amplitude of mean coordinate oscillation. The latter processes are accompanied by a noticeable growth of the nuclear coordinate dispersion associated with the overall nuclear wavepacket width. The demonstrated quantum relaxation features of the photoinduced vibronic dynamics in molecular dimers are obtained by a simple method, applicable to systems with many degrees of freedom.

Dmitri S. Kilin; Yuri V. Pereversev; Oleg V. Prezhdo

2004-03-13T23:59:59.000Z

444

Accelerated Molecular Dynamics Methods  

NLE Websites -- All DOE Office Websites (Extended Search)

Dynamics Methods Dynamics Methods for Infrequent Events Arthur F. Voter Theoretical Division Los Alamos National Laboratory Los Alamos, New Mexico U.S. Department of Energy Theory Focus Session on Hydrogen Storage Materials Crystal City, VA May 18, 2006 Los Alamos Acknowledgments Blas P. Uberuaga (LANL, MST-8) Francesco Montalenti (U. Milano-Bicocca) Graeme Henkelman (U. Texas at Austin) Timothy C. Germann (LANL, X-7) James A. Sprague (NRL) Mads Sorensen (Novo Nordisk A/S, Copenhagen) Sriram Swaminarayan (LANL, MST-8) Steve Stuart (Clemson) David Sholl (Carnegie Mellon) John Hamilton (Sandia) Wolfgang Windl (Ohio State) Roger Smith (U. Loughborough) Robin Grimes (Imperial College) Kurt Sickafus (LANL, MST-8) Jacques Amar (U. Toledo) DOE Office of Basic Energy Sciences Motorola Intel Los Alamos Outline

445

State Technologies Advancement Collaborative  

DOE Green Energy (OSTI)

The U. S. Department of Energy (DOE), National Association of State Energy Officials (NASEO), and Association of State Energy Research and Technology Transfer Institutions (ASERTTI) signed an intergovernmental agreement on November 14, 2002, that allowed states and territories and the Federal Government to better collaborate on energy research, development, demonstration and deployment (RDD&D) projects. The agreement established the State Technologies Advancement Collaborative (STAC) which allowed the states and DOE to move RDD&D forward using an innovative competitive project selection and funding process. A cooperative agreement between DOE and NASEO served as the contracting instrument for this innovative federal-state partnership obligating funds from DOE's Office of Energy Efficiency and Renewable Energy and Office of Fossil Energy to plan, fund, and implement RDD&D projects that were consistent with the common priorities of the states and DOE. DOE's Golden Field Office provided Federal oversight and guidance for the STAC cooperative agreement. The STAC program was built on the foundation of prior Federal-State efforts to collaborate on and engage in joint planning for RDD&D. Although STAC builds on existing, successful programs, it is important to note that it was not intended to replace other successful joint DOE/State initiatives such as the State Energy Program or EERE Special Projects. Overall the STAC process was used to fund, through three competitive solicitations, 35 successful multi-state research, development, deployment, and demonstration projects with an overall average non-federal cost share of 43%. Twenty-two states were awarded at least one prime contract, and organizations in all 50 states and some territories were involved as subcontractors in at least one STAC project. Projects were funded in seven program areas: (1) Building Technologies, (2) Industrial Technologies, (3) Transportation Technologies, (4) Distributed Energy Resources, (5) Hydrogen Technology Learning Centers, (6) Fossil Energy, and (7) Rebuild America.

David S. Terry

2012-01-30T23:59:59.000Z

446

Structure and Evolution of Winter Cyclones in the Central United States and Their Effects on the Distribution of Precipitation. Part VI: A Mesoscale Modeling Study of the Initiation of Convective Rainbands  

Science Conference Proceedings (OSTI)

A cyclonic storm that moved over the central United States on 8–9 March 1992 developed two convective rainbands, namely, a pre–dry trough rainband and a cold front aloft (CFA) rainband. This study extends the results of previous investigations of ...

Mark T. Stoelinga; John D. Locatelli; Peter V. Hobbs

2000-10-01T23:59:59.000Z

447

Structure and Evolution of Winter Cyclones in the Central United States and Their Effects on the Distribution of Precipitation. Part I: A Synoptic-Scale Rainband Associated with a Dryline and Lee Trough  

Science Conference Proceedings (OSTI)

A convective rainband, which was approximately 1500 km in length and affected large areas of the central United States for about 16 h, developed within an evolving winter cyclone. The rainband, which will be referred to as the pre-drytrough ...

Jonathan E. Martin; John D. Locatelli; Peter V. Hobbs; Peng-Yun Wang; Jeffrey A. Castle

1995-02-01T23:59:59.000Z

448

Photoluminescence Blinking Dynamics of Colloidal Quantum Dots in the Presence of Controlled External Electron Traps  

Science Conference Proceedings (OSTI)

The effect of the external charge trap on the photoluminescence blinking dynamics of individual colloidal quantum dots is investigated with a series of colloidal quantum dot-bridge-fullerene dimers with varying bridge lengths, where the fullerene moiety acts as a well-defined, well-positioned external charge trap. It is found that charge transfer followed by charge recombination is an important mechanism in determining the blinking behavior of quantum dots when the external trap is properly coupled with the excited state of the quantum dot, leading to a quasi-continuous distribution of 'on' states and an early fall-off from a power-law distribution for both 'on' and 'off' times associated with quantum dot photoluminescence blinking.

Cotlet, M.; Xu, Z.

2012-01-23T23:59:59.000Z

449

Household Response To Dynamic Pricing Of Electricity: A Survey...  

Open Energy Info (EERE)

property. This report surveys evidence from 15 recent experiments with dynamic pricing of electricity in the United States and Canada. The report suggests conclusive evidence that...

450

EIA - Distribution of U.S. Coal by Destination  

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

Destination Destination Glossary Home > Coal> Distribution of U.S. Coal by Destination Distribution of U.S. Coal by Destination Release Date: January 2006 Next Release Date: 2006 Distribution of U.S Coal by Destination Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transportation, 2004 (Thousand Short Tons) DESTINATION: ALASKA State of Origin by Method of Transportation Electricity Generation Coke Plants Industrial Plants (Except Coke) Residential and Commercial Total Alaska 460 - - 497 957 Railroad 256 - - 497 753 Truck 204 - - * 204 State Total 460 - - 497 957 Railroad 256 - - 497 753 Truck 204 - - * 204 EIA - Distribution of U.S. Coal by Destination

451

Multi-dimensional Dynamic Knowledge Representation  

Science Conference Proceedings (OSTI)

According to Dynamic Logic Programming (DLP), knowledge may be given by a sequence of theories (encoded as logic programs) representing different states of knowledge. These may represent time (e.g. in updates), specificity (e.g. in taxonomies), strength ...

João Alexandre Leite; José Júlio Alferes; Luís Moniz Pereira

2001-09-01T23:59:59.000Z

452

Dynamics of global ocean heat transport variability  

E-Print Network (OSTI)

A state-of-the-art, high-resolution ocean general circulation model is used to estimate the time-dependent global ocean heat transport and investigate its dynamics. The north-south heat transport is the prime manifestation ...

Jayne, Steven Robert

1999-01-01T23:59:59.000Z

453

Stepwise specification of dynamic database behaviour  

Science Conference Proceedings (OSTI)

This paper presents a methodology for the stepwise specification of dynamic database behaviour. A conceptual schema is described in three levels: data, objects and transactions. To determine which sequences of database states are “admissible”, ...

Udo W. Lipeck

1986-06-01T23:59:59.000Z

454

Molecular Dynamics Study of Nucleation during Crystallization  

Science Conference Proceedings (OSTI)

A Tale of Two States and More: Modeling of New Generation of Lattice Stability from Zero ... Analysis of Nano Fluid Using CFD-A Hybrid Approach for Cooling Purpose ... Molecular Dynamics Simulations of Grain Boundary Free Energy and

455

Correlated exciton dynamics in semiconductor nanostructures  

E-Print Network (OSTI)

The absorption and dissipation of energy in semiconductor nanostructures are often determined by excited electron dynamics. In semiconductors, one fundamentally important electronic state is an exciton, an excited electron ...

Wen, Patrick, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

456

New Construction of Distribution Lines, Service Lines, and Appurtenant...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Permitting Provider New York State Public Service Commission Any proposed construction of electricity-related facilities in residential subdivisions, including distribution and...

457

Dynamical aspects of isotopic scaling  

E-Print Network (OSTI)

Investigation of the effect of the dynamical stage of heavy-ion collisions indicates that the increasing width of the initial isospin distributions is reflected by a significant modification of the isoscaling slope for the final isotopic distributions after de-excitation. For narrow initial distributions, the isoscaling slope assumes the limiting value of the two individual initial nuclei while for wide initial isotopic distributions the slope for hot fragments approaches the initial value. The isoscaling slopes for final cold fragments increase due to secondary emissions. The experimentally observed evolution of the isoscaling parameter in multifragmentation of hot quasiprojectiles at E$_{inc}$=50 AMeV, fragmentation of $^{86}$Kr projectiles at E$_{inc}$=25 AMeV and multifragmentation of target spectators at relativistic energies was reproduced by a simulation with the dynamical stage described using the appropriate model (deep inelastic transfer and incomplete fusion at the Fermi energy domain and spectator-participant model at relativistic energies) and the de-excitation stage described with the statistical multifragmentation model. In all cases the isoscaling behavior was reproduced by a proper description of the dynamical stage and no unambiguous signals of the decrease of the symmetry energy coefficient were observed.

M. Veselsky

2006-07-17T23:59:59.000Z

458

Pion distribution in the nucleon  

SciTech Connect

A model is presented for calculating the pion wave function inside the nucleon. By assuming that all pions around a core of the nucleon are in the lowest eigenstate of the system, it is shown that both the bound state and {pi}N scattering amplitude can be consistently described by an exactly soluble model defined in the subspace spanned by the core state and the physical {pi}N state. The parameters of the model are determined by fitting the data of the nucleon mass, {pi}NN coupling constant and low energy {pi}N scattering phase shifts. The model predicts that the probability of finding the pion component inside the nucleon is about 20%. The calculated {pi}NN form factor differs significantly from the conventional monopole form. The dynamical consequences of the differences are demonstrated in a calculation of electromagnetic production of pions from the nucleon and the deuteron. 7 refs., 4 figs., 1 tab.

Lee, T.-S.H.

1989-01-01T23:59:59.000Z

459

Decoding the `Nature Encoded' Messages for Distributed Energy Generation Control in Microgrid  

E-Print Network (OSTI)

The communication for the control of distributed energy generation (DEG) in microgrid is discussed. Due to the requirement of realtime transmission, weak or no explicit channel coding is used for the message of system state. To protect the reliability of the uncoded or weakly encoded messages, the system dynamics are considered as a `nature encoding' similar to convolution code, due to its redundancy in time. For systems with or without explicit channel coding, two decoding procedures based on Kalman filtering and Pearl's Belief Propagation, in a similar manner to Turbo processing in traditional data communication systems, are proposed. Numerical simulations have demonstrated the validity of the schemes, using a linear model of electric generator dynamic system.

Gong, Shuping; Lai, Lifeng; Qiu, Robert C

2010-01-01T23:59:59.000Z

460

SOLAR WIND ION AND ELECTRON DISTRIBUTION  

E-Print Network (OSTI)

SOLAR WIND ION AND ELECTRON DISTRIBUTION FUNCTIONS AND THE TRANSITION FROM FLUID TO KINETIC 2010 #12;Overview The solar wind as a laboratory to understand plasma dynamics As a function of beta/NASA) The corona is not in hydrostatic equilibrium and a supersonic solar wind is generated. The solar wind

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461

Object Assignment Strategy for Distributed Multimedia Systems  

Science Conference Proceedings (OSTI)

As application of multimedia and network have become popular in recent years, many technique have been proposed to create fascinating works, but little of them has focused on assigning tasks effectively in a distributed manner. In this paper we propose ... Keywords: dynamic assignment strategy, Petri-net modeling, load measurement

Wen-Tsung Chang; Chien-Chiung Hsieh

1998-10-01T23:59:59.000Z

462

An Adaptive Interest Management Scheme for Distributed Virtual Environments  

Science Conference Proceedings (OSTI)

Traditionally Interest Management (IM) in distributed environments has been performed through a ýtop-downý expression of interest patterns in the model. For many models the interest patterns are complicated or highly dynamic and are not suitable for ...

Rob Minson; Georgios Theodoropoulos

2005-06-01T23:59:59.000Z

463

Load balancing utilizing data redundancy in distributed volume rendering  

Science Conference Proceedings (OSTI)

In interactive volume rendering, the cost for rendering a certain block of the volume strongly varies with dynamically changing parameters (most notably the camera position and orientation). In distributed environments — wherein each compute device ...

S. Frey; T. Ertl

2011-04-01T23:59:59.000Z

464

Brain dynamics promotes function Carlos Lourenco  

E-Print Network (OSTI)

dynamics? At this point in brain research, we are happy if we can at least provide a partial answer. Key. Natural scientists look for correlations between measured electrical signals and behavior or mental states by considering the so-called dynamical complex- ity as revealed e.g. by the measurement of the brain's electrical

465

Pretzelosity distribution function  

E-Print Network (OSTI)

The 'pretzelosity' distribution is discussed. Theoretical properties, model results, and perspectives to access experimental information on this leading twist, transverse momentum dependent parton distribution function are