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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


1

Modeling the Relations Between Flow Regime Components, Species Traits, and Spawning Success of Fishes in Warmwater  

E-Print Network [OSTI]

of warmwater stream fishes and may guide deci- sions related to stream regulation and management. Keywords impoundment and regulation can reduce peak and low discharge events in terms of both frequency and magnitude (Petts 1986). Peaking hydro- electric power generation often releases discrete surges of water from

Kwak, Thomas J.

2

A Model-Driven Engineering Framework for Component Models Interoperability  

Science Journals Connector (OSTI)

A multitude of component models exist today, characterized by slightly different conceptual architectural elements, focusing on a specific operational domain, covering different phases of component life-cycle, or supporting analysis of different quality ...

Ivica Crnkovi?; Ivano Malavolta; Henry Muccini

2009-06-01T23:59:59.000Z

3

NREL's Building Component Library for Use with Energy Models  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Building Component Library (BCL) is the U.S. Department of Energy’s comprehensive online searchable library of energy modeling building blocks and descriptive metadata. Novice users and seasoned practitioners can use the freely available and uniquely identifiable components to create energy models and cite the sources of input data, which will increase the credibility and reproducibility of their simulations. The BCL contains components which are the building blocks of an energy model. They can represent physical characteristics of the building such as roofs, walls, and windows, or can refer to related operational information such as occupancy and equipment schedules and weather information. Each component is identified through a set of attributes that are specific to its type, as well as other metadata such as provenance information and associated files. The BCL also contains energy conservation measures (ECM), referred to as measures, which describe a change to a building and its associated model. For the BCL, this description attempts to define a measure for reproducible application, either to compare it to a baseline model, to estimate potential energy savings, or to examine the effects of a particular implementation. The BCL currently contains more than 30,000 components and measures. A faceted search mechanism has been implemented on the BCL that allows users to filter through the search results using various facets. Facet categories include component and measure types, data source, and energy modeling software type. All attributes of a component or measure can also be used to filter the results.

4

AVTA Vehicle Component Cost Model | Department of Energy  

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

Vehicle Component Cost Model AVTA Vehicle Component Cost Model 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010...

5

Friction Modeling for Lubricated Engine and Drivetrain Components...  

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

Modeling for Lubricated Engine and Drivetrain Components Friction Modeling for Lubricated Engine and Drivetrain Components 2010 DOE Vehicle Technologies and Hydrogen Programs...

6

Plug-In Hybrid Electric Vehicles - PHEV Modeling - Component Technologies  

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

Technologies Impact on Fuel Efficiency Technologies Impact on Fuel Efficiency One of the main objectives of the U.S. Department of Energy's (DOE's) Plug-in Hybrid Electric Vehicle (PHEV) R&D Plan (2.2Mb pdf) is to "determine component development requirements" through simulation analysis. Overall fuel efficiency is affected by component technologies from a component sizing and efficiency aspect. To properly define component requirements, several technologies for each of the main components (energy storage, engine and electric machines) are being compared at Argonne using PSAT. Per the R&D plan, several Li-ion battery materials are being modeled to evaluate their impacts on fuel efficiency and vehicle mass. Different Power to Energy ratios are being considered to understand the relative impact of power and energy.

7

Model-based software component testing.  

E-Print Network [OSTI]

??[Truncated abstract] Software component testing (SCT) is a proven software engineering approach to evaluating, improving and demonstrating component reliability and quality for producing trusted software… (more)

Zheng, Weiqun

2012-01-01T23:59:59.000Z

8

Modeling the Phillips curve with unobserved components  

E-Print Network [OSTI]

are imposed on the underlying level (core in?ation), since #25;t = (1#0; #11;L)#0;1#22;t + (1#0; #11;L)#0;1"t; t = 1; :::; T 5 1960 1980 2000 ­0.05 0.00 0.05 0.10 0.15 INFLATION Level 1960 1980 2000 ­0.01 0.00 0.01 INFLATION­Seasonal 1960 1980 2000 ­0.05 0... .8 9.0 9.2 log_GDP Level 1985 1990 1995 2000 2005 ­0.025 0.000 0.025 0.050 0.0 75 INFLATION Level+Cycle 1985 1990 1995 2000 2005 ­0.02 ­0.01 0.00 0.01 0.02 0.0 3 log_GDP­Cycle Figure 5: Smoothed components from a bivariate model for GDP and in?a- tion A...

Harvey, Andrew C

9

Heartbeat Model for Component Failure in Simulation of Plant Behavior  

SciTech Connect (OSTI)

As part of the Department of Energy’s “Light Water Reactor Sustainability Program” (LWRSP), tools and methodology for risk-informed characterization of safety margin are being developed for use in supporting decision-making on plant life extension after the first license renewal. Beginning with the traditional discussion of “margin” in terms of a “load” (a physical challenge to system or component function) and a “capacity” (the capability of that system or component to accommodate the challenge), we are developing the capability to characterize realistic probabilistic load and capacity spectra, reflecting both aleatory and epistemic uncertainty in system behavior. This way of thinking about margin comports with work done in the last 10 years. However, current capabilities to model in this way are limited: it is currently possible, but difficult, to validly simulate enough time histories to support quantification in realistic problems, and the treatment of environmental influences on reliability is relatively artificial in many existing applications. The INL is working on a next-generation safety analysis capability (widely referred to as “R7”) that will enable a much better integration of reliability-related and phenomenology-related aspects of margin. In this paper, we show how to implement cumulative damage (“heartbeat”) models for component reliability that lend themselves naturally to being included as part of the phenomenology simulation. Implementation of this modeling approach relies on the way in which the phenomenology simulation implements its dynamic time step management. Within this approach, component failures influence the phenomenology, and the phenomenology influences the component failures.

R. W. Youngblood; R. R. Nourgaliev; D. L. Kelly; C. L. Smith; T-N. Dinh

2011-03-01T23:59:59.000Z

10

Describing bond graph models of hydraulic components in Modelica  

Science Journals Connector (OSTI)

In this paper we discuss an object oriented description of bond graph models of hydraulic components by means of the unified modeling language Modelica. A library which is still under development is briefly described and models of some standard hydraulic components are given for illustration. In particular we address the modeling of hydraulic orifices.

W. Borutzky; B. Barnard; J.U. Thoma

2000-01-01T23:59:59.000Z

11

Collective and static properties of model two-component plasmas  

SciTech Connect (OSTI)

Classical MD data on the charge-charge dynamic structure factor of two-component plasmas (TCP) modeled in Phys. Rev. A 23, 2041 (1981) are analyzed using the sum rules and other exact relations. The convergent power moments of the imaginary part of the model system dielectric function are expressed in terms of its partial static structure factors, which are computed by the method of hypernetted chains using the Deutsch effective potential. High-frequency asymptotic behavior of the dielectric function is specified to include the effects of inverse bremsstrahlung. The agreement with the MD data is improved, and important statistical characteristics of the model TCP, such as the probability to find both electron and ion at one point, are determined.

Arkhipov, Yu. V.; Askaruly, A.; Davletov, A. E.; Meirkanova, G. M. [Department of Optics and Plasma Physics, al-Farabi Kazakh National University, Tole Bi 96, Almaty 050012 (Kazakhstan); Ballester, D.; Tkachenko, I. M. [Department of Applied Mathematics, Polytechnic University of Valencia, Camino de Vera s/n, 46022 Valencia (Spain)

2007-08-15T23:59:59.000Z

12

H2A Delivery Components Model and Analysis  

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

Hydrogen Delivery Components Model Matt Ringer National Renewable Energy Laboratory February 8, 2005 Other Team Members: Mark Paster: DOE Marianne Mintz, Jerry Gillette, Jay Burke:...

13

Performance categorization of structures, systems & components and related issues  

SciTech Connect (OSTI)

Provisions of DOE-STD-1021-93 on performance categorization of structures, systems and components (SSCs) subjected to natural phenomena hazards (NPHs) are summarized. The interrelationship among safety classification of SSCs (per DOE 6430.1A and DOE 5480.30), facility hazard categorization/classification (per DOE 5481.1B and DOE 5480.23), and NPH performance categorization of SSCs (per DOE 5480.28 and DOE-STD-1021-93) is discussed. The compatibility between the safety goals in the Department of Energy Safety Policy, SEN-35-91, and the numerical NPH performance goals of DOE 5480.28, as presented in UCRL-ID-12612 (draft), is examined.

Hossain, Q.A.

1993-09-30T23:59:59.000Z

14

Design of a component-based integrated environmental modeling framework  

Science Journals Connector (OSTI)

Integrated environmental modeling (IEM) includes interdependent science-based components that comprise an appropriate software modeling system and are responsible for consuming and producing information as part of the system, but moving information from ... Keywords: FRAMES, IEM, Integrated environmental modeling, Multimedia modeling, Risk assessment

Gene Whelan, Keewook Kim, Mitch A. Pelton, Karl J. Castleton, Gerard F. Laniak, Kurt Wolfe, Rajbir Parmar, Justin Babendreier, Michael Galvin

2014-05-01T23:59:59.000Z

15

Modelling anisotropic fluid spheres in general relativity  

E-Print Network [OSTI]

We argue that an arbitrary general relativistic anisotropic fluid sphere, (spherically symmetric but with transverse pressure not equal to radial pressure), can nevertheless be successfully modelled by suitable linear combinations of quite ordinary classical matter: an isotropic perfect fluid, a classical electromagnetic field, and a classical (minimally coupled) scalar field. While the most general decomposition is not unique, a preferred minimal decomposition can be constructed that is unique. We show how the classical energy conditions for the anisotropic fluid sphere can be related to energy conditions for the isotropic perfect fluid, electromagnetic field, and scalar field components of the model. Furthermore we show how this decomposition relates to the distribution of electric charge density and scalar charge density throughout the model that is used to mimic the anisotropic fluid sphere. Consequently, we can build physically reasonable matter models for almost any spherically symmetric spacetime.

Boonserm, Petarpa; Visser, Matt

2015-01-01T23:59:59.000Z

16

Formal Modeling and Analysis of the HLA Component Integration Standard  

E-Print Network [OSTI]

of domain-speci c integration standards in areas as diverse as programming environments, robotics control 20Formal Modeling and Analysis of the HLA Component Integration Standard Robert J. Allen IBM, Dept An increasingly important trend in the engineering of com- plex systems is the design of component integration

van der Hoek, André

17

Chemical kinetic modeling of component mixtures relevant to gasoline  

SciTech Connect (OSTI)

Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

2009-02-13T23:59:59.000Z

18

Correlation relations between mineralogical components in ash from Kaa-Khem coals  

SciTech Connect (OSTI)

Regression analysis was used to study correlation relations between the mineral components of coals. Regularities in the variability of the concentrations of individual ash-forming elements with changing ash contents of coals and changing seam depth were found. The X-ray diffraction characteristics of coal ashes and the qualitative composition of their mineralogical components are presented.

N.N. Yanchat; L.Kh. Tas-ool [Russian Academy of Sciences, Kyzyl (Russia). Tuvinian Institute for Complex Exploration of Natural Resources

2008-08-15T23:59:59.000Z

19

Modeling fabrication of nuclear components: An integrative approach  

SciTech Connect (OSTI)

Reduction of the nuclear weapons stockpile and the general downsizing of the nuclear weapons complex has presented challenges for Los Alamos. One is to design an optimized fabrication facility to manufacture nuclear weapon primary components in an environment of intense regulation and shrinking budgets. This dissertation presents an integrative two-stage approach to modeling the casting operation for fabrication of nuclear weapon primary components. The first stage optimizes personnel radiation exposure for the casting operation layout by modeling the operation as a facility layout problem formulated as a quadratic assignment problem. The solution procedure uses an evolutionary heuristic technique. The best solutions to the layout problem are used as input to the second stage - a simulation model that assesses the impact of competing layouts on operational performance. The focus of the simulation model is to determine the layout that minimizes personnel radiation exposures and nuclear material movement, and maximizes the utilization of capacity for finished units.

Hench, K.W.

1996-08-01T23:59:59.000Z

20

Mercury exosphere I. Global circulation model of its sodium component  

E-Print Network [OSTI]

Mercury exosphere I. Global circulation model of its sodium component Francois Leblanc a,*, R 2010 Accepted 27 April 2010 Available online 5 May 2010 Keywords: Mercury, Atmosphere Aeronomy a b s t r a c t Our understanding of Mercury's sodium exosphere has improved considerably in the last 5

Johnson, Robert E.

Note: This page contains sample records for the topic "related model components" 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

A Denotational Model for Component-Based Risk Analysis  

E-Print Network [OSTI]

matches the value of the assets to be protected. A certain level of risk may be acceptable if the riskA Denotational Model for Component-Based Risk Analysis Gyrd BrĂŠndeland1,2, , Atle Refsdal2 , and Ketil StĂžlen1,2 1 Department of Informatics, University of Oslo, Norway 2 SINTEF, Norway Abstract. Risk

StĂžlen, Ketil

22

Coupling climate models with the Earth System Modeling Framework and the Common Component Architecture  

Science Journals Connector (OSTI)

Typical Earth system models involve coupled model components in high-performance computing (HPC) environments. In the last few years, several frameworks have been developed for HPC applications. Two of them are component-based frameworks: the Earth System ... Keywords: climate model, framework, model coupling

S. J. Zhou

2006-02-01T23:59:59.000Z

23

Chemical kinetic modeling of component mixtures relevant to gasoline  

SciTech Connect (OSTI)

Detailed kinetic models of pyrolysis and combustion of hydrocarbon fuels are nowadays widely used in the design of internal combustion engines and these models are effectively applied to help meet the increasingly stringent environmental and energetic standards. In previous studies by the combustion community, such models not only contributed to the understanding of pure component combustion, but also provided a deeper insight into the combustion behavior of complex mixtures. One of the major challenges in this field is now the definition and the development of appropriate surrogate models able to mimic the actual features of real fuels. Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. Their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. Aside the most commonly used surrogates containing iso-octane and n-heptane only, the so called Primary Reference Fuels (PRF), new mixtures have recently been suggested to extend the reference components in surrogate mixtures to also include alkenes and aromatics. It is generally agreed that, including representative species for all the main classes of hydrocarbons which can be found in real fuels, it is possible to reproduce very effectively in a wide range of operating conditions not just the auto-ignition propensity of gasoline or Diesel fuels, but also their physical properties and their combustion residuals [1]. In this work, the combustion behavior of several components relevant to gasoline surrogate formulation is computationally examined. The attention is focused on the autoignition of iso-octane, hexene and their mixtures. Some important issues relevant to the experimental and modeling investigation of such fuels are discussed with the help of rapid compression machine data and calculations. Following the model validation, the behavior of mixtures is discussed on the basis of computational results.

Mehl, M; Curran, H J; Pitz, W J; Dooley, S; Westbrook, C K

2008-05-29T23:59:59.000Z

24

AGE-RELATED DEGRADATION OF NUCLEAR POWER PLANT STRUCTURES AND COMPONENTS.  

SciTech Connect (OSTI)

This paper summarizes and highlights the results of the initial phase of a research project on the assessment of aged and degraded structures and components important to the safe operation of nuclear power plants (NPPs). A review of age-related degradation of structures and passive components at NPPs was performed. Instances of age-related degradation have been collected and reviewed. Data were collected from plant generated documents such as Licensing Event Reports, NRC generic communications, NUREGs and industry reports. Applicable cases of degradation occurrences were reviewed and then entered into a computerized database. The results obtained from the review of degradation occurrences are summarized and discussed. Various trending analyses were performed to identify which structures and components are most affected, whether degradation occurrences are worsening, and what are the most common aging mechanisms. The paper also discusses potential aging issues and degradation-susceptible structures and passive components which would have the greatest impact on plant risk.

BRAVERMAN,J.

1999-03-29T23:59:59.000Z

25

Age-Related Degradation of Nuclear Power Plant Structures and Components  

SciTech Connect (OSTI)

This paper summarizes and highlights the results of the initial phase of a research project on the assessment of aged and degraded structures and components important to the safe operation of nuclear power plants (NPPs). A review of age-related degradation of structures and passive components at NPPs was performed. Instances of age-related degradation have been collected and reviewed. Data were collected from plant generated documents such as Licensing Event Reports, NRC generic communications, NUREGs and industry reports. Applicable cases of degradation occurrences were reviewed and then entered into a computerized database. The results obtained from the review of degradation occurrences are summarized and discussed. Various trending analyses were performed to identify which structures and components are most affected, whether degradation occurrences are worsening, and what was the most common aging mechanisms. The paper also discusses potential aging issues and degradation-susceptible structures and passive components which would have the greatest impact on plant risk.

Braverman, J.; Chang, T.-Y.; Chokshi, N.; Hofmayer, C.; Morante, R.; Shteyngart, S.

1999-03-29T23:59:59.000Z

26

Coupling Multi-Component Models with MPH on Distributed Memory Computer Architectures  

E-Print Network [OSTI]

Among these, NASA’s Earth System Models Framework (ESMF) [to facilitate coupling earth system model components and to

He, Yun; Ding, Chris

2005-01-01T23:59:59.000Z

27

Evaluating fugacity models for trace components in landfill gas  

Science Journals Connector (OSTI)

A fugacity approach was evaluated to reconcile loadings of vinyl chloride (chloroethene), benzene, 1,3-butadiene and trichloroethylene in waste with concentrations observed in landfill gas monitoring studies. An evaluative environment derived from fictitious but realistic properties such as volume, composition, and temperature, constructed with data from the Brogborough landfill (UK) test cells was used to test a fugacity approach to generating the source term for use in landfill gas risk assessment models (e.g. GasSim). SOILVE, a dynamic Level II model adapted here for landfills, showed greatest utility for benzene and 1,3-butadiene, modelled under anaerobic conditions over a 10 year simulation. Modelled concentrations of these components (95?300 ?g m?3; 43 ?g m?3) fell within measured ranges observed in gas from landfills (24?300–180?000 ?g m?3; 20–70 ?g m?3). This study highlights the need (i) for representative and time-referenced biotransformation data; (ii) to evaluate the partitioning characteristics of organic matter within waste systems and (iii) for a better understanding of the role that gas extraction rate (flux) plays in producing trace component concentrations in landfill gas.

Sophie Shafi; Andrew Sweetman; Rupert L. Hough; Richard Smith; Alan Rosevear; Simon J.T. Pollard

2006-01-01T23:59:59.000Z

28

Three Components Evolution in a Simple Big Bounce Cosmological Model  

E-Print Network [OSTI]

We consider a five-dimensional Ricci flat Bouncing cosmology and assume that the four-dimensional universe is permeated smoothly by three minimally coupled matter components: CDM+baryons $\\rho_{m}$, radiation $\\rho_{r}$ and dark energy $\\rho_{x}$. Evolutions of these three components are studied and it is found that dark energy dominates before the bounce, and pulls the universe contracting. In this process, dark energy decreases while radiation and the matter increase. After the bounce, the radiation and matter dominates alternatively and then decrease with the expansion of the universe. At present, the dark energy dominates again and pushes the universe accelerating. In this model, we also obtain that the equation of state (EOS) of dark energy at present time is $w_{x0}\\approx -1.05$ and the redshift of the transition from decelerated expansion to accelerated expansion is $z_{T}\\approx 0.37$, which are compatible with the current observations.

Lixin Xu; Hongya Liu

2005-07-11T23:59:59.000Z

29

An Analytical Model for Tropical Relative Humidity  

Science Journals Connector (OSTI)

An analytical model is derived for tropical relative humidity using only the Clausius–Clapeyron relation, hydrostatic balance, and a bulk-plume water budget. This theory is constructed for radiative–convective equilibrium and compared against a ...

David M. Romps

2014-10-01T23:59:59.000Z

30

Terrestrial Carbon Cycle: Climate Relations in Eight CMIP5 Earth System Models  

Science Journals Connector (OSTI)

Eight Earth System Models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) are evaluated, focusing on both the net carbon dioxide flux and its components and their relation with climatic variables (temperature, precipitation, and ...

Pu Shao; Xubin Zeng; Koichi Sakaguchi; Russell K. Monson; Xiaodong Zeng

2013-11-01T23:59:59.000Z

31

Tile of the document: HVAC system component-based modeling and implementation  

E-Print Network [OSTI]

1 Abstract Tile of the document: HVAC system component-based modeling and implementation Karam the foundation for modeling components that are used in HVAC systems (heating, ventilation, and air conditioning such functionalities. #12;2 HVAC system component-based modeling and implementation By Karam H. Rajab Scholarly

Austin, Mark

32

Powder Metal Performance Modeling of Automotive Components ?AMD...  

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

Automotive Components: Manufacturing Process Feasibility StudyAMD 310 Structural Cast Magnesium Development (SCMD) AMD 111 Magnesium Front End Design And Development (AMD603)...

33

Petri-Net Simulation Model of a Nuclear Component Degradation Process , E. Zioa,b  

E-Print Network [OSTI]

1 Petri-Net Simulation Model of a Nuclear Component Degradation Process Y.F. Lia* , E. Zioa,b , Y models [2-5] and simulation models [1, 6, 7]. The analytical degradation models can be further classified

Paris-Sud XI, Université de

34

Optimizing Probabilistic Models for Relational Sequence Learning  

E-Print Network [OSTI]

Optimizing Probabilistic Models for Relational Sequence Learning Nicola Di Mauro, Teresa M features, a feature #12;2 Nicola Di Mauro, Teresa M.A. Basile, Stefano Ferilli, and Floriana Esposito

Di Mauro, Nicola

35

The component interaction network approach for modeling of complex thermal systems  

Science Journals Connector (OSTI)

A practical approach for the thermal modeling of complex thermal systems, called the component interaction network (CIN) is presented. Its stages are explained: description of the thermal system as a set of non-overlapping components and their interactions ... Keywords: Component interaction network, Electric furnace, Experimental validation, Heat transfer, Rapid thermal processing, Thermal modeling

K. El Khoury; G. Mouawad; G. El Hitti; M. Nemer

2013-11-01T23:59:59.000Z

36

Atmospheric component of the MPI-M Earth System Model: Bjorn Stevens,1  

E-Print Network [OSTI]

Atmospheric component of the MPI-M Earth System Model: ECHAM6 Bjorn Stevens,1 Marco Giorgetta,1: Stevens, B., et al. (2013), Atmospheric component of the MPI-M Earth System Model: ECHAM6, J. Adv. Model System Model (or MPI-ESM) is described in an accompanying paper (M. Giorgetta et al., Climate change from

Reichler, Thomas

37

Modeling Stress Strain Relationships and Predicting Failure Probabilities For Graphite Core Components  

SciTech Connect (OSTI)

This project will implement inelastic constitutive models that will yield the requisite stress-strain information necessary for graphite component design. Accurate knowledge of stress states (both elastic and inelastic) is required to assess how close a nuclear core component is to failure. Strain states are needed to assess deformations in order to ascertain serviceability issues relating to failure, e.g., whether too much shrinkage has taken place for the core to function properly. Failure probabilities, as opposed to safety factors, are required in order to capture the bariability in failure strength in tensile regimes. The current stress state is used to predict the probability of failure. Stochastic failure models will be developed that can accommodate possible material anisotropy. This work will also model material damage (i.e., degradation of mechanical properties) due to radiation exposure. The team will design tools for components fabricated from nuclear graphite. These tools must readily interact with finite element software--in particular, COMSOL, the software algorithm currently being utilized by the Idaho National Laboratory. For the eleastic response of graphite, the team will adopt anisotropic stress-strain relationships available in COMSO. Data from the literature will be utilized to characterize the appropriate elastic material constants.

Duffy, Stephen

2013-09-09T23:59:59.000Z

38

Fermionic construction of partition function for multi-matrix models and multi-component TL hierarchy  

E-Print Network [OSTI]

We use $p$-component fermions $(p=2,3,...)$ to present $(2p-2)N$-fold integrals as a fermionic expectation value. This yields fermionic representation for various $(2p-2)$-matrix models. Links with the $p$-component KP hierarchy and also with the $p$-component TL hierarchy are discussed. We show that the set of all (but two) flows of $p$-component TL changes standard matrix models to new ones.

John Harnad; Alexander Yu. Orlov

2007-04-09T23:59:59.000Z

39

ON THE PULSATIONAL-ORBITAL-PERIOD RELATION OF ECLIPSING BINARIES WITH ?-SCT COMPONENTS  

SciTech Connect (OSTI)

We have deduced a theoretical relation between the pulsation and orbital-periods of pulsating stars in close binaries based on their Roche lobe filling. It appears to be of a simple linear form, with the slope as a function of the pulsation constant, the mass ratio, and the filling factor for an individual system. Testing the data of 69 known eclipsing binaries containing ?-Sct-type components yields an empirical slope of 0.020 ± 0.006 for the P{sub pul}-P{sub orb} relation. We have further derived the upper limit of the P{sub pul}/P{sub orb} ratio for the ?-Sct stars in eclipsing binaries with a value of 0.09 ± 0.02. This value could serve as a criterion to distinguish whether or not a pulsator in an eclipsing binary pulsates in the p-mode. Applying the deduced P{sub pul}-P{sub orb} relation, we have computed the dominant pulsation constants for 37 ?-Sct stars in eclipsing systems with definite photometric solutions. These ranged between 0.008 and 0.033 days with a mean value of about 0.014 days, indicating that ?-Sct stars in eclipsing binaries mostly pulsate in the fourth or fifth overtones.

Zhang, X. B.; Luo, C. Q. [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Fu, J. N. [Department of Astronomy, Beijing Normal University, Beijing 100875 (China)

2013-11-01T23:59:59.000Z

40

Model-checking Distributed Components: The Vercors Platform  

E-Print Network [OSTI]

software. Through the reuse of software, designers are able to speed up their development process and avoid team OSCAR funded by INRIA and University of Chile. This paper is electronically published signatures) of each component through its interfaces, it is well-known that static typing of bound interfaces

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "related model components" 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

ForReviewers Integrating Theoretical Components: A Graphical Model for  

E-Print Network [OSTI]

formulating a hypothesis, four avenues of194 integration (Integration Routes ïżœ IR, dashed lines in Figure 1 to form a new hypothesis on the effects of predation risk on200 disease transmission of the host while foraging.221 We do not include integration routes between identical components (e.g., laws

Prather, Chelse M.

42

LED Components and the Related Solutions for Solid-State Lightings Applications  

Science Journals Connector (OSTI)

The high brightness (HB) and the high power (HP) LED components for solid-state lighting applications are introduced in the slides. The industry leading Lighting-Class LED components...

Shao, Jiaping

43

Extraction of Vibration Components from a Rotating Propeller Model Based on Complex Empirical Mode Decomposition  

E-Print Network [OSTI]

Extraction of Vibration Components from a Rotating Propeller Model Based on Complex Empirical Mode dydynoel@kaist.ac.kr Abstract -- In this paper, we present extraction of vibration components embedded decomposition (CEMD), an extended version of EMD, is employed to extract the vibration components. With FEKO

Myung, Noh-Hoon

44

Selected components of an oil spill contingency plan model  

E-Print Network [OSTI]

as utilization of scientific and engineering information or resources are two major components which deserve particular emphasis. Oil spill contingency plans must supply a balance between the administrative aspects and the activities occurring in the field... of political strength and/or have state resources they can commit to back them up. If the State must assume supervision of oil removal operations, the TDWR may request reimbursement through the EPA or USCG for reasonable costs incurred. Additional non...

Starnater, Carol Elizabeth

2012-06-07T23:59:59.000Z

45

Component-based Face Recognition with 3D Morphable Models B. Weyrauch  

E-Print Network [OSTI]

@mpi-sb.mpg.de Honda Research Institute USA, Inc. Max-Planck-Institute for Computer Science Boston, MA Saarbr. In this paper, we combine morphable models and component-based recognition. The morphable model is em- ployed

Poggio, Tomaso

46

A component infrastructure for performance and power modeling of parallel scientific applications  

Science Journals Connector (OSTI)

Characterizing the performance of scientific applications is essential for effective code optimization, both by compilers and by high-level adaptive numerical algorithms. While maximizing power efficiency is becoming increasingly important in current ... Keywords: CCA, common component architecture, components, performance modeling, power modeling

Van Bui; Boyana Norris; Kevin Huck; Lois Curfman McInnes; Li Li; Oscar Hernandez; Barbara Chapman

2008-10-01T23:59:59.000Z

47

A component-based debugging approach for detecting structural inconsistencies in declarative equation based models  

Science Journals Connector (OSTI)

Object-oriented modeling with declarative equation based languages often unconsciously leads to structural inconsistencies. Component-based debugging is a new structural analysis approach that addresses this problem by analyzing the structure of each ... Keywords: component-based debugging, declarative model, modelica, simulation, structural inconsistency

Jian-Wan Ding; Li-Ping Chen; Fan-Li Zhou

2006-05-01T23:59:59.000Z

48

Plug-In Hybrid Electric Vehicles - PHEV Modeling - Component Requirement  

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

Requirement Definition for PHEVs Requirement Definition for PHEVs One of the main objectives of the U.S. Department of Energy's (DOE's) Plug-in Hybrid Electric Vehicle R&D Plan (2.2Mb pdf) is to "determine component development requirements" through simulation analysis. PSAT has been used to design and evaluate a series of PHEVs to define the requirements of different components, focusing on the energy storage system's power and energy. Several vehicle classes (including midsize car, crossover SUV and midsize SUV) and All Electric Range (AER from 10 to 40 miles) were considered. The preliminary simulations were performed at Argonne using a pre-transmission parallel hybrid configuration with an energy storage system sized to run the Urban Dynanometer Driving Schedule (UDDS) in electric mode. Additional powertrain configurations and sizing algorithm are currently being considered. Trade-off studies are being performed as ways to achieve some level of performance while easing requirements on one area or another. As shown in the figure below, the FreedomCAR Energy Storage Technical Team selected a short term and a long term All Electric Range (AER) goals based on several vehicle simulations.

49

Modeling and analysis of aircraft non-linear components for harmonics analysis  

SciTech Connect (OSTI)

Modern commercial aircraft Electric Power Systems (EPS) include many nonlinear components which produce harmonics. The addition of all the current harmonics could result in a power system with unacceptable levels of voltage distortion. It is important to be able to predict the levels of voltage distortion at early program stages to correct any potential problems and avoid costly redesigns. In this paper the nature and sources of harmonic producing equipment are described. These sources of harmonics and their effect on aircraft power system operation are described. Models for various aircraft non-linear components are developed in this paper. These component models are used in a model of the Boeing 777 EPS which is used to calculate voltage harmonics for various airplane configurations and flight conditions. A description of this model and the models used for various components are given. Tests performed to validate these models are described. Comparison of experimental results with analytical model predictions are given.

Karimi, K.J. [Boeing Computer Services, Seattle, WA (United States); Voss, J. [Boeing Commercial Airplane Group, Seattle, WA (United States)

1995-12-31T23:59:59.000Z

50

Testing Components of New Community Isopycnal Ocean Circulation Model  

SciTech Connect (OSTI)

The ocean and atmosphere are both governed by the same physical laws and models of the two media have many similarities. However, there are critical differences that call for special methods to provide the best simulation. One of the most important difference is that the ocean is nearly opaque to radiation in the visible and infra-red part of the spectrum. For this reason water mass properties in the ocean are conserved along trajectories for long distances and for long periods of time. For this reason isopycnal coordinate models would seem to have a distinct advantage in simulating ocean circulation. In such a model the coordinate surfaces are aligned with the natural paths of near adiabatic, density conserving flow in the main thermocline. The difficulty with this approach is at the upper and lower boundaries of the ocean, which in general do not coincide with density surfaces. For this reason hybrid coordinate models were proposed by Bleck and Boudra (1981) in which Cartesian coordinates were used near the ocean surface and isopycnal coordinates were used in the main thermocline. This feature is now part of the HICOM model (Bleck, 2002).

Bryan, Kirk

2008-05-09T23:59:59.000Z

51

An Aerospace Component Cost Modelling Study for Value Driven Design  

E-Print Network [OSTI]

of the research project is to understand, develop and implement a strategy to allow future generations of gas to develop cost modelling tools and techniques that can be adopted during the engine design phases turbines to be designed to meet not only performance and cost targets but to also take into account other

52

Measuring and Modeling Component and Whole-System Carbon Exchange  

SciTech Connect (OSTI)

We measured ecosystem/atmospheric carbon exchange through a range of methods covering a range of scales. We measured carbon (C) pool and flux for a number of previously poorly quantified ecosystems, developed measurement and modeling methods, and applied these to substantially increase the accuracy and reduce uncertainty in ecosystem/atmospheric C exchange at a range of scales. It appears most upland forests are weak to strong carbon sinks, and status depends largely on disturbance history and age. Net flux from wetland ecosystems appears to be from weak sinks to moderate sources of C to the atmosphere. We found limited evidence for a positive feedback of warming/drying to increased ecosystem C emissions. We further developed multi-source integration and modeling methods, including multiple towers, to scale estimates to landscapes and larger regions.

Paul Bolstad

2006-11-01T23:59:59.000Z

53

Forecasting GHG emissions using an optimized artificial neural network model based on correlation and principal component analysis  

Science Journals Connector (OSTI)

Abstract The prediction of GHG emissions is very important due to their negative impacts on climate and global warming. The aim of this study was to develop a model for GHG forecasting emissions at the national level using a new approach based on artificial neural networks (ANN) and broadly available sustainability, economical and industrial indicators acting as inputs. The ANN model architecture and training parameters were optimized, with inputs being selected using correlation analysis and principal component analysis. The developed ANN models were compared with the corresponding multiple linear regression (MLR) model, while an ANN model created using transformed inputs (principal components) was compared with a principal component regression (PCR) model. Since the best results were obtained with the ANN model based on correlation analysis, that particular model was selected for the actual 2011 GHG emissions forecasting. The relative errors of the 2010 GHG emissions predictions were used to adjust the ANN model predictions for 2011, which subsequently resulted in the adjusted 2011 predictions having a MAPE value of only 3.60%. Sensitivity analysis showed that gross inland energy consumption had the highest sensitivity to GHG emissions.

Davor Z. Antanasijevi?; Mirjana ?. Risti?; Aleksandra A. Peri?-Gruji?; Viktor V. Pocajt

2014-01-01T23:59:59.000Z

54

MODELING OF DAMAGE AND LIFETIME ANALYSIS OF PLASMA FACING COMPONENTS DURING PLASMA INSTABILITIES IN TOKAMAKS  

E-Print Network [OSTI]

MODELING OF DAMAGE AND LIFETIME ANALYSIS OF PLASMA FACING COMPONENTS DURING PLASMA INSTABILITIES reliability and characterize the performance of this key component. A novel particle-in-cell (PIC) technique) as consequence of plasma instabilities in tokamak reactors still represents the biggest obstacle

Harilal, S. S.

55

Bayesian Modeling of Time Trends in Component Reliability Data via Markov Chain Monte Carlo Simulation  

SciTech Connect (OSTI)

Markov chain Monte Carlo (MCMC) techniques represent an extremely flexible and powerful approach to Bayesian modeling. This work illustrates the application of such techniques to time-dependent reliability of components with repair. The WinBUGS package is used to illustrate, via examples, how Bayesian techniques can be used for parametric statistical modeling of time-dependent component reliability. Additionally, the crucial, but often overlooked subject of model validation is discussed, and summary statistics for judging the model’s ability to replicate the observed data are developed, based on the posterior predictive distribution for the parameters of interest.

D. L. Kelly

2007-06-01T23:59:59.000Z

56

H2A Delivery Components Model and Analysis | Department of Energy  

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

H2A Delivery Components Model and Analysis for the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting held February 8-9, 2005 at Argonne National...

57

Modeling Methodology for Component Reuse and System Integration for Hurricane Loss Projection Application  

E-Print Network [OSTI]

Modeling Methodology for Component Reuse and System Integration for Hurricane Loss Projection Distributed Multimedia Information System Laboratory School of Computing and Information Sciences Florida International University, Miami, FL 33199, USA 2 Department of Finance Florida International University, Miami

Chen, Shu-Ching

58

Component-based Modeling of Complete Buildings Luc Leblanc Jocelyn Houle Pierre Poulin  

E-Print Network [OSTI]

Component-based Modeling of Complete Buildings Luc Leblanc Jocelyn Houle Pierre Poulin LIGUM, Dept Graphics [I.3.5]: Computational Geom- etry and Object Modeling 1 INTRODUCTION Buildings host a great deal the buildings of a city, quickly becomes a daunting endeavor. Procedural modeling is an excellent method

Montréal, Université de

59

Coupling Multi-Component Models with MPH on Distributed MemoryComputer Architectures  

SciTech Connect (OSTI)

A growing trend in developing large and complex applications on today's Teraflop scale computers is to integrate stand-alone and/or semi-independent program components into a comprehensive simulation package. One example is the Community Climate System Model which consists of atmosphere, ocean, land-surface and sea-ice components. Each component is semi-independent and has been developed at a different institution. We study how this multi-component, multi-executable application can run effectively on distributed memory architectures. For the first time, we clearly identify five effective execution modes and develop the MPH library to support application development utilizing these modes. MPH performs component-name registration, resource allocation and initial component handshaking in a flexible way.

He, Yun; Ding, Chris

2005-03-24T23:59:59.000Z

60

Multi-State Physics Models of Aging Passive Components in Probabilistic Risk Assessment  

SciTech Connect (OSTI)

Multi-state Markov modeling has proved to be a promising approach to estimating the reliability of passive components - particularly metallic pipe components - in the context of probabilistic risk assessment (PRA). These models consider the progressive degradation of a component through a series of observable discrete states, such as detectable flaw, leak and rupture. Service data then generally provides the basis for estimating the state transition rates. Research in materials science is producing a growing understanding of the physical phenomena that govern the aging degradation of passive pipe components. As a result, there is an emerging opportunity to incorporate these insights into PRA. This paper describes research conducted under the Risk-Informed Safety Margin Characterization Pathway of the Department of Energy’s Light Water Reactor Sustainability Program. A state transition model is described that addresses aging behavior associated with stress corrosion cracking in ASME Class 1 dissimilar metal welds – a component type relevant to LOCA analysis. The state transition rate estimates are based on physics models of weld degradation rather than service data. The resultant model is found to be non-Markov in that the transition rates are time-inhomogeneous and stochastic. Numerical solutions to the model provide insight into the effect of aging on component reliability.

Unwin, Stephen D.; Lowry, Peter P.; Layton, Robert F.; Heasler, Patrick G.; Toloczko, Mychailo B.

2011-03-13T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Physics-Based Stress Corrosion Cracking Component Reliability Model cast in  

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

Physics-Based Stress Corrosion Cracking Component Reliability Model Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework The Risk-Informed Safety Margin Characterization (RISMC) pathway is a set of activities defined under the U.S. Department of Energy Light Water Reactor Sustainability Program. The overarching objective of RISMC is to support plant life-extension decision-making by providing a state-of-knowledge characterization of safety margins in key systems, structures, and components (SSCs). The methodology emerging from the RISMC pathway is not a conventional probabilistic risk assessment (PRA)-based one; rather, it relies on a reactor systems simulation framework in which

62

Physics-Based Stress Corrosion Cracking Component Reliability Model cast in  

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

Physics-Based Stress Corrosion Cracking Component Reliability Model Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework The Risk-Informed Safety Margin Characterization (RISMC) pathway is a set of activities defined under the U.S. Department of Energy Light Water Reactor Sustainability Program. The overarching objective of RISMC is to support plant life-extension decision-making by providing a state-of-knowledge characterization of safety margins in key systems, structures, and components (SSCs). The methodology emerging from the RISMC pathway is not a conventional probabilistic risk assessment (PRA)-based one; rather, it relies on a reactor systems simulation framework in which

63

Vaporization modeling of petroleum-biofuel drops using a hybrid multi-component approach  

SciTech Connect (OSTI)

Numerical modeling of the vaporization characteristics of multi-component fuel mixtures is performed in this study. The fuel mixtures studied include those of binary components, biodiesel, diesel-biodiesel, and gasoline-ethanol. The use of biofuels has become increasingly important for reasons of environmental sustainability. Biofuels are often blended with petroleum fuels, and the detailed understanding of the vaporization process is essential to designing a clean and efficient combustion system. In this study, a hybrid vaporization model is developed that uses continuous thermodynamics to describe petroleum fuels and discrete components to represent biofuels. The model is validated using the experimental data of n-heptane, n-heptane-n-decane mixture, and biodiesel. Since biodiesel properties are not universal due to the variation in feedstock, methods for predicting biodiesel properties based on the five dominant fatty acid components are introduced. Good levels of agreement in the predicted and measured drop size histories are obtained. Furthermore, in modeling the diesel-biodiesel drop, results show that the drop lifetime increases with the biodiesel concentration in the blend. During vaporization, only the lighter components of diesel fuel vaporize at the beginning. Biodiesel components do not vaporize until some time during the vaporization process. On the other hand, results of gasoline-ethanol drops indicate that both fuels start to vaporize once the process begins. At the beginning, the lighter components of gasoline have a slightly higher vaporization rate than ethanol. After a certain time, ethanol vaporizes faster than the remaining gasoline components. At the end, the drop reduces to a regular gasoline drop with heavier components. Overall, the drop lifetime increases as the concentration of ethanol increases in the drop due to the higher latent heat. (author)

Zhang, Lei; Kong, Song-Charng [Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering Building, Ames, IA 50011 (United States)

2010-11-15T23:59:59.000Z

64

From Teleo-Reactive specifications to architectural components: A model-driven approach  

Science Journals Connector (OSTI)

The Teleo-Reactive approach designed by N.J. Nilsson offers a high-level programming model that permits the development of reactive systems, such as robotic vehicles. Teleo-Reactive programs are written in a manner that allows engineers to define the ... Keywords: Component-based software development, Model-driven software development, Reactive systems, Robotics, Teleo-Reactive programs

Pedro SáNchez; Diego Alonso; José Miguel Morales; Pedro Javier Navarro

2012-11-01T23:59:59.000Z

65

A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2  

E-Print Network [OSTI]

A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2 3 4 Peng Xu, Philip Haves HVAC system (air handling units and air distribution systems). The models are used to predict of automatic documentation methods in the library. INTRODUCTION The increasing complexity of building HVAC

66

Computer aided modeling and simulation of complex physical systems, using components from multiple  

E-Print Network [OSTI]

of Equation-Based Object-Oriented Modeling Languages Department of Computer and Information Science, Linköping. References [1] Modelica Association. Modelica - A Unified Object-Oriented Language for Physical Systems§ Background Computer aided modeling and simulation of complex physical systems, using components

Zhao, Yuxiao

67

Kinetic Modeling of Gasoline Surrogate Components and Mixtures under Engine Conditions  

SciTech Connect (OSTI)

Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, an improved version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multicomponent gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines (3-50 atm, 650-1200K, stoichiometric fuel/air mixtures). Simulation results are discussed focusing attention on the mixing effects of the fuel components.

Mehl, M; Pitz, W J; Westbrook, C K; Curran, H J

2010-01-11T23:59:59.000Z

68

Estimation of land surface water and energy balance flux components and closure relation using conditional sampling  

E-Print Network [OSTI]

Models of terrestrial water and energy balance include numerical treatment of heat and moisture diffusion in the soil-vegetation-atmosphere continuum. These two diffusion and exchange processes are linked only at a few ...

Farhadi, Leila

2012-01-01T23:59:59.000Z

69

Failure Predictions for VHTR Core Components using a Probabilistic Contiuum Damage Mechanics Model  

SciTech Connect (OSTI)

The proposed work addresses the key research need for the development of constitutive models and overall failure models for graphite and high temperature structural materials, with the long-term goal being to maximize the design life of the Next Generation Nuclear Plant (NGNP). To this end, the capability of a Continuum Damage Mechanics (CDM) model, which has been used successfully for modeling fracture of virgin graphite, will be extended as a predictive and design tool for the core components of the very high- temperature reactor (VHTR). Specifically, irradiation and environmental effects pertinent to the VHTR will be incorporated into the model to allow fracture of graphite and ceramic components under in-reactor conditions to be modeled explicitly using the finite element method. The model uses a combined stress-based and fracture mechanics-based failure criterion, so it can simulate both the initiation and propagation of cracks. Modern imaging techniques, such as x-ray computed tomography and digital image correlation, will be used during material testing to help define the baseline material damage parameters. Monte Carlo analysis will be performed to address inherent variations in material properties, the aim being to reduce the arbitrariness and uncertainties associated with the current statistical approach. The results can potentially contribute to the current development of American Society of Mechanical Engineers (ASME) codes for the design and construction of VHTR core components.

Fok, Alex

2013-10-30T23:59:59.000Z

70

Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment  

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

LTR-2012/390 LTR-2012/390 Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment R. E. Stoller, A. V. Barashev, and S. I. Golubov Materials Science and Technology Division Oak Ridge National Laboratory Prepared for: Light Water Reactor Sustainability Program Office of Nuclear Energy, Science and Technology U.S. Department of Energy September 2012 ORNL/LTR-2012/390 1 Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment Abstract Recent experimental observations have made it clear that cavity formation can occur in light-water reactor internal components fabricated from austenitic stainless during the course of their service life. In order to assess the potential for cavity swelling

71

A two-component heavy fuel oil evaporation model for CFD studies in marine Diesel engines  

Science Journals Connector (OSTI)

Abstract The paper presents an evaporation model for Heavy Fuel Oil (HFO) combustion studies. In the present work, HFO is considered as a mixture of a heavy and a light fuel component, with the thermophysical properties of the heavy component calculated from the recently introduced model of Kyriakides et al. (2009) [1]. The model proposes a proper treatment of convective heat transfer to the evaporating fuel droplets. Computational Fluid Dynamics (CFD) simulations of HFO spray combustion in constant volume chambers are performed, utilizing a modified characteristic time combustion model. The results are in good agreement with literature experimental data. Computational results for a two-stroke marine Diesel engine also compare favorably against experiments. The present development yields a basis for detailed CFD studies of HFO combustion in large marine Diesel engines.

Nikolaos Stamoudis; Christos Chryssakis; Lambros Kaiktsis

2014-01-01T23:59:59.000Z

72

Independent Component Analysis For EEG Source Localization In Realistic Head Models  

E-Print Network [OSTI]

1 Independent Component Analysis For EEG Source Localization In Realistic Head Models Leonid Zhukov Abstract--- A pervasive problem in neuroscience is determining which regions of the brain are active, given within the brain from electroencephalo­ graphic (EEG) recordings is an ill­posed problem. Specifi­ cally

Utah, University of

73

Independent Component Analysis For EEG Source Localization In Realistic Head Models  

E-Print Network [OSTI]

1 Independent Component Analysis For EEG Source Localization In Realistic Head Models Leonid Zhukov Abstract-- A pervasive problem in neuroscience is determining which regions of the brain are active, given within the brain from electroencephalo- graphic (EEG) recordings is an ill-posed problem. Specifi- cally

Utah, University of

74

Modeling behavioral considerations related to information security.  

SciTech Connect (OSTI)

The authors present experimental and simulation results of an outcome-based learning model for the identification of threats to security systems. This model integrates judgment, decision-making, and learning theories to provide a unified framework for the behavioral study of upcoming threats.

Martinez-Moyano, I. J.; Conrad, S. H.; Andersen, D. F. (Decision and Information Sciences); (SNL); (Univ. at Albany)

2011-01-01T23:59:59.000Z

75

Open problem: Dynamic Relational Models for Improved Hazardous Weather Prediction  

E-Print Network [OSTI]

. Current weather radar detection and prediction sys- tems primarily rely on numerical models. We proposeOpen problem: Dynamic Relational Models for Improved Hazardous Weather Prediction Amy McGovern1, #12;Dynamic Relational Models for Improved Hazardous Weather Prediction Radar velocity Radar

McGovern, Amy

76

HOMOGENEOUS MODELS IN GENERAL RELATIVITY AND GAS DYNAMICS  

E-Print Network [OSTI]

HOMOGENEOUS MODELS IN GENERAL RELATIVITY AND GAS DYNAMICS O. I. BOGOYAVLENSKII AND S. P. NOVIKOV analytically) in general relativity and gas dynamics. The investigation of these models is carried out begins with a short survey of results on non-trivial models (that is, those that are not integrable

Novikov, Sergei Petrovich

77

Data: An often-ignored component of safety-related systems Alastair Faulkner, MSc.; CEng.; MBCS.; CSE International Ltd. Flixborough. UK  

E-Print Network [OSTI]

and operation of safety-related systems. The work described in this paper sets out to provide much neededData: An often-ignored component of safety-related systems Alastair Faulkner, MSc.; CEng.; MBCS. UK Keywords: Data, data-driven, safety-related systems Abstract Safety-related systems are being

Storey, Neil

78

Posters A Comparison of Model-Simulated Relative Humidity with...  

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

Posters A Comparison of Model-Simulated Relative Humidity with Satellite-Derived Cloudiness R. J. Alliss and S. Raman Department of Marine, Earth and Atmospheric Sciences North...

79

Modeling of reactor components using FIDAP: a finite element computer code  

E-Print Network [OSTI]

. ? e model are listed in table 1. 19 CHAPTER III FLUID AND THERMAL MIXING IN THE COLD LEG AND DOWNCOMER OF A PWR - A BENCHMARK In order to vahdste the code FIDAP, s, thermal mixing experiment is simulated This is basically a test of the field...MODELING OF REACTOR COMPONENTS USING FIDAP - A FINITE ELEMENT COMPUTE& CODE A Thesrs by ANAND GANGADHARAN Subnutted to the Office of Graduate Stuches of Texs, s ARM University in partial fulfillment of the requirements for the degree...

Gangadharan, Anand

2012-06-07T23:59:59.000Z

80

The Nested Universal Relation Data Model MARK LEVENE  

E-Print Network [OSTI]

The Nested Universal Relation Data Model MARK LEVENE Department of Computer Science, University, London WC1E 7HX, U.K., email: george@cs.bbk.ac.uk #12; 2 The Nested UR Model #12; 3 List of Symbols letters to be italicized are clearly indicated in the text. #12; 4 The nested universal relation (UR

Levene, Mark

Note: This page contains sample records for the topic "related model components" 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

Thermodynamic phase-field model for microstructure with multiple components and phases: The possibility of metastable phases  

E-Print Network [OSTI]

A diffuse-interface model for microstructure with an arbitrary number of components and phases was developed from basic thermodynamic and kinetic principles and formalized within a variational framework. The model includes ...

Cogswell, Daniel A.

82

Efficient energy based modeling and experimental validation of liquid filling in planar micro-fluidic components and networks  

E-Print Network [OSTI]

Efficient energy based modeling and experimental validation of liquid filling in planar micro-fluidic components and networks I. Treise, N. Fortner, B. Shapiro* and A. Hightower Received 25th June 2004, Accepted409680k This paper presents a model that describes how liquid flow fills micro-fluidic components

Shapiro, Benjamin

83

HVAC Component Data Modeling Using Industry Foundation Classes Vladimir Bazjanac, Lawrence Berkeley National Laboratory, U.S.A.  

E-Print Network [OSTI]

1 HVAC Component Data Modeling Using Industry Foundation Classes Vladimir Bazjanac, Lawrence. This paper describes a number of aspects of a major extension of the HVAC part of the IFC data model. First is the introduction of a more generic approach for handling HVAC components. This includes type information, which

84

Building Component Library: An Online Repository to Facilitate Building Energy Model Creation: Preprint  

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

Component Library: Component Library: An Online Repository to Facilitate Building Energy Model Creation Preprint Katherine Fleming, Nicholas Long, and Alex Swindler To be presented at the ACEEE Summer Study on Energy Efficiency in Buildings Pacific Grove, California August 12-17, 2012 Conference Paper NREL/CP-5500-54710 May 2012 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

85

Development of an in vitro model for migration inhibitory factor utilizing a component of cobra venom  

E-Print Network [OSTI]

of Committee~ Head of Depar me j'7 c Member Membe May 1976 ABSTRACT Development of an In Vitro Model for Migration Inhibitory Factor Utilizing a Component of Cobra Venon. May (1976) Lee James Carmack, B. S. , Texas ASM University; Chairman of Advisory... of fractions eluted from the ion exchange column 2 Effects of whole cobra venom (CV), dialyzed cobra venom (OCV), Arvin, and Venacil on migration of normal mouse peritoneal exudate cells in cell culture 3 Effects on migration of normal mouse peritoneal...

Carmack, Lee James

1976-01-01T23:59:59.000Z

86

Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework  

SciTech Connect (OSTI)

This is a working report drafted under the Risk-Informed Safety Margin Characterization pathway of the Light Water Reactor Sustainability Program, describing statistical models of passives component reliabilities.

Unwin, Stephen D.; Lowry, Peter P.; Layton, Robert F.; Toloczko, Mychailo B.; Johnson, Kenneth I.; Sanborn, Scott E.

2011-07-01T23:59:59.000Z

87

Soya: a Programming Model and Runtime Environment for Component Composition using SSDL  

SciTech Connect (OSTI)

The SOAP Service Description Language (SSDL) is a SOAPcentric language for describing Web Service contracts. SSDL focuses on message abstraction as the building block for creating service-oriented applications and provides an extensible range of protocol frameworks that can be used to describe and formally model component composition based on Web Service interactions. Given its novel approach, implementing support for SSDL contracts presents interesting challenges to middleware developers. At one end of the spectrum, programming abstractions that support message-oriented designs need to be created. At the other end, new functionality and semantics must be added to existing SOAP engines. In this paper we explain how component developers can create message-oriented Web Service interfaces with contemporary tool support (specifically the Windows Communication Foundation) using SSDL. We show how SSDL can be used as an alternative and powerful metadata language natively alongside existing tooling without imposing additional burdens on application developers. Moreover, we describe the design and architecture of the Soya middleware which supports

Fornasier, Patrick; Webber, James; Gorton, Ian

2007-08-14T23:59:59.000Z

88

Physics-Based Multi-State Models of Passive Component Degradation for the R7 Reactor Simulation Environment  

SciTech Connect (OSTI)

Abstract: The Next Generation Systems Analysis Code - referred to as R7 - is reactor systems simulation software being developed to support the Risk-Informed Safety Margin Characterization Pathway of the U.S. Department of Energy's Light Water Reactor Sustainability Program. It will provide an integrated multi-physics environment, implemented in an uncertainty quantification (UQ) framework that can produce risk and other performance insights on long-term reactor operations. An element of this simulation environment will be the performance of passive components and materials. Conventional models of component reliability are largely parametric, relying on plant service data to estimate component lifetimes and failure rates. This type of model has limited usefulness in the R7 environment where the intent is to explicitly determine the influence of physical stressors on component degradation. In this paper, we describe a new class of multi-state physics-based component models designed to be R7-compatible. These models capture the physics of materials degradation while also incorporating the effects of interventions and component rejuvenation. The models are implemented in a cumulative damage framework that allows the impact of an evolving physical environment to be addressed without recourse to resampling within the Monte Carlo-based UQ framework. The paper describes an application to stress corrosion cracking in dissimilar metal welds - a principal contributor to potential loss of coolant accidents. So while R7 will have the more conventional capability of reactor simulation codes to model the impact of degraded components and systems on plant performance, the methodology described here allows R7 to model the inverse effect; the impact of the physical environment on component degradation and performance.

Unwin, Stephen D.; Layton, Robert F.; Johnson, Kenneth I.; Lowry, Peter P.

2012-06-25T23:59:59.000Z

89

Present status of the VMI and related models  

SciTech Connect (OSTI)

This article traces the evolution of the Variable Moment of Inertia model in its relation to the shell model, the Bohr-Mottelson model and the Interacting Boson Model. The discovery of a new type of spectrum, that of pseudomagic nuclei (isobars of doubly magic nuclei) is reported, and an explanation for their dynamics is suggested. The type of rotational motion underlying the ground state band of an e-e nucleus is shown to depend on whether the minimum number of valence nucleon pairs of one kind (neutrons or protons) is less than or equal to 2 or > 2. In the former case the alpha-dumbbell model holds; in the latter the two-fluid model.

Scharff-Goldhaber, G

1980-05-01T23:59:59.000Z

90

Hybrid principal component analysis and support vector machine model for predicting the cost performance of commercial building projects using pre-project planning variables  

Science Journals Connector (OSTI)

An accurate prediction of project performance in the pre-project planning stage – especially prediction of cost performance – is paramount to project stakeholders. The aim of this study is to propose and validate a hybrid predictive model for cost performance of commercial building projects using 64 variables related to the levels of definition in the pre-project planning stage. The proposed model integrates a support vector regression (SVR) model with principal component analysis (PCA). The proposed method was analyzed and validated based on 84 sets of data from an equal number of commercial building projects. Additionally, the result obtained using the proposed PCA–SVR model was compared with four other data-mining techniques. Experimental results revealed that the proposed PCA–SVR model is able to predict with high accuracy the cost performance of commercial building projects in the pre-project planning stage and is more efficient than the other four models.

Hyojoo Son; Changmin Kim; Changwan Kim

2012-01-01T23:59:59.000Z

91

A conformance relation for model-based testing of PLC  

E-Print Network [OSTI]

A conformance relation for model-based testing of PLC Anais Guignard Jean-Marc Faure Ecole-marc.faure@lurpa.ens-cachan.fr) Abstract: This paper focuses on the execution of conformance testing of PLC with I/O scanning which of conformance test of real devices, like Pro- grammable Logic Controllers (PLC 1 ) that execute a con- trol code

Paris-Sud XI, Université de

92

Three-body recombination of two-component cold atomic gases into deep dimers in an optical model  

E-Print Network [OSTI]

We consider three-body recombination into deep dimers in a mass-imbalanced two-component atomic gas. We use an optical model where a phenomenological imaginary potential is added to the lowest adiabatic hyper-spherical potential. The consequent imaginary part of the energy eigenvalue corresponds to the decay rate or recombination probability of the three-body system. The method is formulated in details and the relevant qualitative features are discussed as functions of scattering lengths and masses. We use zero-range model in analyses of recent recombination data. The dominating scattering length is usually related to the non-equal two-body systems. We account for temperature smearing which tends to wipe out the higher-lying Efimov peaks. The range and the strength of the imaginary potential determine positions and shapes of the Efimov peaks as well as the absolute value of the recombination rate. The Efimov scaling between recombination peaks is calculated and shown to depend on both scattering lengths. Reco...

Mikkelsen, M; Fedorov, D V; Zinner, N T

2015-01-01T23:59:59.000Z

93

Model-Independent Semileptonic Form Factors Using Dispersion Relations  

E-Print Network [OSTI]

We present a method for parametrizing heavy meson semileptonic form factors using dispersion relations, and from it produce a two-parameter description of the B -> B elastic form factor. We use heavy quark symmetry to relate this function to B -> D* l nu form factors, and extract |V_cb|=0.0355^{+0.0029}_{-0.0025} from experimental data with a least squares fit. Our method eliminates model-dependent uncertainties inherent in choosing a parametrization for the extrapolation of the differential decay rate to threshold.

C. G. Boyd; B. Grinstein; R. Lebed

1995-08-04T23:59:59.000Z

94

Soil-related Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This analysis is one of the technical reports containing documentation of the Environmental Radiation Model for Yucca Mountain Nevada (ERMYN), a biosphere model supporting the Total System Performance Assessment (TSPA) for the geologic repository at Yucca Mountain. The biosphere model is one of a series of process models supporting the Total System Performance Assessment (TSPA) for the Yucca Mountain repository. A graphical representation of the documentation hierarchy for the ERMYN biosphere model is presented in Figure 1-1. This figure shows the interrelationships among the products (i.e., analysis and model reports) developed for biosphere modeling, and the plan for development of the biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan: for Biosphere Modeling and Expert Support'' (BSC 2003 [163602]). It should be noted that some documents identified in Figure 1-1 may be under development at the time this report is issued and therefore not available. This figure is included to provide an understanding of how this analysis report contributes to biosphere modeling in support of the license application, and is not intended to imply that access to the listed documents is required to understand the contents of this report. This report, ''Soil Related Input Parameters for the Biosphere Model'', is one of the five analysis reports that develop input parameters for use in the ERMYN model. This report is the source documentation for the six biosphere parameters identified in Table 1-1. ''The Biosphere Model Report'' (BSC 2003 [160699]) describes in detail the conceptual model as well as the mathematical model and its input parameters. The purpose of this analysis was to develop the biosphere model parameters needed to evaluate doses from pathways associated with the accumulation and depletion of radionuclides in the soil. These parameters support the calculation of radionuclide concentrations in soil from on-going irrigation and ash deposition and, as a direct consequence, radionuclide concentration in resuspended particulate matter in the atmosphere. The analysis was performed in accordance with the technical work plan for the biosphere modeling and expert support (TWP) (BSC 2003 [163602]). This analysis revises the previous one titled ''Evaluate Soil/Radionuclide Removal by Erosion and Leaching'' (CRWMS M&O 2001 [152517]). In REV 00 of this report, the data generated were fixed (i.e., taking no account of uncertainty and variability) values. This revision incorporates uncertainty and variability into the values for the bulk density, elemental partition coefficients, average annual loss of soil from erosion, resuspension enhancement factor, and field capacity water content.

A. J. Smith

2003-07-02T23:59:59.000Z

95

A model of multimedia components interconnection with support to communication mechanisms dynamic selection and reconfiguration  

Science Journals Connector (OSTI)

Distributed multimedia systems must provide support for interaction between its components, and this can be done by using different strategies and mechanisms of communication. A possible way to define efficient communication mechanisms is to consider ... Keywords: adaptation, communication, components, distributed multimedia systems, protocol of communication

Felipe A. P. Pinto; Adilson Barboza Lopes; André G. P. Silva; Daniel Cunha da Silva

2009-10-01T23:59:59.000Z

96

Global search tool for the Advanced Photon Source Integrated Relational Model of Installed Systems (IRMIS) database.  

SciTech Connect (OSTI)

The Integrated Relational Model of Installed Systems (IRMIS) is a relational database tool that has been implemented at the Advanced Photon Source to maintain an updated account of approximately 600 control system software applications, 400,000 process variables, and 30,000 control system hardware components. To effectively display this large amount of control system information to operators and engineers, IRMIS was initially built with nine Web-based viewers: Applications Organizing Index, IOC, PLC, Component Type, Installed Components, Network, Controls Spares, Process Variables, and Cables. However, since each viewer is designed to provide details from only one major category of the control system, the necessity for a one-stop global search tool for the entire database became apparent. The user requirements for extremely fast database search time and ease of navigation through search results led to the choice of Asynchronous JavaScript and XML (AJAX) technology in the implementation of the IRMIS global search tool. Unique features of the global search tool include a two-tier level of displayed search results, and a database data integrity validation and reporting mechanism.

Quock, D. E. R.; Cianciarulo, M. B.; APS Engineering Support Division; Purdue Univ.

2007-01-01T23:59:59.000Z

97

Review of Recent Aging-Related Degradation Occurrences of Structures and Passive Components in U.S. Nuclear Power Plants  

SciTech Connect (OSTI)

The Korea Atomic Energy Research Institute (KAERI) and Brookhaven National Laboratory (BNL) are collaborating to develop seismic capability evaluation technology for degraded structures and passive components (SPCs) under a multi-year research agreement. To better understand the status and characteristics of degradation of SPCs in nuclear power plants (NPPs), the first step in this multi-year research effort was to identify and evaluate degradation occurrences of SPCs in U.S. NPPs. This was performed by reviewing recent publicly available information sources to identify and evaluate the characteristics of degradation occurrences and then comparing the information to the observations in the past. Ten categories of SPCs that are applicable to Korean NPPs were identified, comprising of anchorage, concrete, containment, exchanger, filter, piping system, reactor pressure vessel, structural steel, tank, and vessel. Software tools were developed to expedite the review process. Results from this review effort were compared to previous data in the literature to characterize the overall degradation trends.

Nie,J.; Braverman, J.; Hofmayer, C.; Choun, Y.-S.; Kim, M.K.; Choi, I.-K.

2009-04-02T23:59:59.000Z

98

Field testing of component-level model-based fault detection methods for mixing boxes and VAV fan systems  

SciTech Connect (OSTI)

An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests of the sort using in commissioning. This paper presents the results of field tests of mixing box and VAV fan system models in an experimental facility and a commercial office building. The models were found to be capable of representing the performance of correctly operating mixing box and VAV fan systems and detecting several types of incorrect operation.

Xu, Peng; Haves, Philip

2002-05-16T23:59:59.000Z

99

A Model for Recording Early-Stage Proposals and Decisions on Using COTS Components in Architecture  

Science Journals Connector (OSTI)

Large networked systems can include the whole technological spectrum of embedded systems from deeply embedded applicationspecific systems to software intensive applications including COTS component intensive subsystems. Significant up-front and early-stage ...

Tuomas Ihme

2003-02-01T23:59:59.000Z

100

Inversion of Waveforms For Extreme Source Models With an Application to the Isotropic Moment Tensor Component  

Science Journals Connector (OSTI)

......component) in the source. Synthetic tests were used to examine the effect...structure of Silent Canyon caldera, Nevada Test Site, Bull. seism. Soc. Am., 77...structure of Silent Canyon caldera, Nevada Test Site, Bull. sebm. SOC. Am., 77......

D. W. Vasco; L. R. Johnson

1989-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Principal Component Analysis of Observed and Modeled Diurnal Rainfall in the Maritime Continent  

Science Journals Connector (OSTI)

Principal component analysis (PCA) is able to diagnose the diurnal rain cycle in the Maritime Continent into two modes that explain most of the diurnal variability in the region. The first mode results from the differential variation in potential ...

Chee-Kiat Teo; Tieh-Yong Koh; Jeff Chun-Fung Lo; Bhuwan Chandra Bhatt

2011-09-01T23:59:59.000Z

102

Multidelay Model Relating Tide Height to Underwater Acoustic Phase  

Science Journals Connector (OSTI)

Observed relationships between environmental parameters and underwater acoustic phase were earlier reported and a multi?input nonrealizable model was analyzed showing that among several parameters tide height has the strongest coherence with measured phase fluctuations. This work is concerned with a special case of the above model where the system is single input with a realizable impulse response consisting of few delays. Several cases are considered such as a single delay two or more delays. Among these a special case is found where one of the delays is fixed at zero time (in phase no delay component). Two kinds of results are reported—one where optimization is carried out on all energy bands another where optimization is carried out on selected bands that are least corrupted by noise and the effect of other parameters. The resulting transfer function is calculated and errors from measured values are given individually for each band and also collectively as a figure of merit for that solution. [Work supported by Office of Naval Research Code 468.

Kamal Yacoub; Jose Almeida

1970-01-01T23:59:59.000Z

103

Relating toy models of quantum computation: comprehension, complementarity and dagger mix autonomous categories  

E-Print Network [OSTI]

Toy models have been used to separate important features of quantum computation from the rich background of the standard Hilbert space model. Category theory, on the other hand, is a general tool to separate components of mathematical structures, and analyze one layer at a time. It seems natural to combine the two approaches, and several authors have already pursued this idea. We explore *categorical comprehension construction* as a tool for adding features to toy models. We use it to comprehend quantum propositions and probabilities within the basic model of finite-dimensional Hilbert spaces. We also analyze complementary quantum observables over the category of sets and relations. This leads into the realm of *test spaces*, a well-studied model. We present one of many possible extensions of this model, enabled by the comprehension construction. Conspicuously, all models obtained in this way carry the same categorical structure, *extending* the familiar dagger compact framework with the complementation operations. We call the obtained structure *dagger mix autonomous*, because it extends mix autonomous categories, popular in computer science, in a similar way like dagger compact structure extends compact categories. Dagger mix autonomous categories seem to arise quite naturally in quantum computation, as soon as complementarity is viewed as a part of the global structure.

Dusko Pavlovic

2010-06-05T23:59:59.000Z

104

Soil-Related Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This report presents one of the analyses that support the Environmental Radiation Model for Yucca Mountain Nevada (ERMYN). The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes the details of the conceptual model as well as the mathematical model and the required input parameters. The biosphere model is one of a series of process models supporting the postclosure Total System Performance Assessment (TSPA) for the Yucca Mountain repository. A schematic representation of the documentation flow for the Biosphere input to TSPA is presented in Figure 1-1. This figure shows the evolutionary relationships among the products (i.e., analysis and model reports) developed for biosphere modeling, and the biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan for Biosphere Modeling and Expert Support'' (TWP) (BSC 2004 [DIRS 169573]). This figure is included to provide an understanding of how this analysis report contributes to biosphere modeling in support of the license application, and is not intended to imply that access to the listed documents is required to understand the contents of this report. This report, ''Soil-Related Input Parameters for the Biosphere Model'', is one of the five analysis reports that develop input parameters for use in the ERMYN model. This report is the source documentation for the six biosphere parameters identified in Table 1-1. The purpose of this analysis was to develop the biosphere model parameters associated with the accumulation and depletion of radionuclides in the soil. These parameters support the calculation of radionuclide concentrations in soil from on-going irrigation or ash deposition and, as a direct consequence, radionuclide concentration in other environmental media that are affected by radionuclide concentrations in soil. The analysis was performed in accordance with the TWP (BSC 2004 [DIRS 169573]) where the governing procedure was defined as AP-SIII.9Q, ''Scientific Analyses''. This analysis revises the previous version with the same name (BSC 2003 [DIRS 161239]), which was itself a revision of one titled ''Evaluate Soil/Radionuclide Removal by Erosion and Leaching'' (CRWMS M&O 2001 [DIRS 152517]). In Revision 00 of this report, the data generated were fixed values (i.e., taking no account of uncertainty and variability). Revision 01 (BSC 2003 [DIRS 161239]) incorporated uncertainty and variability into the values for the bulk density, elemental partition coefficients, average annual loss of soil from erosion, resuspension enhancement factor, and field capacity water content. The current revision of this document improves the transparency and traceability of the products without changing the details of the analysis. This analysis report supports the treatment of six of the features, events, and processes (FEPs) applicable to the Yucca Mountain reference biosphere (DTN: MO0407SEPFEPLA.000 [DIRS 170760]). The use of the more recent FEP list in DTN: MO0407SEPFEPLA.000 [DIRS 170760] represents a deviation from the detail provided in the TWP (BSC 2004 [DIRS 169573]), which referenced a previous version of the FEP list. The parameters developed in this report support treatment of these six FEPs addressed in the biosphere model that are listed in Table 1-1. Inclusion and treatment of FEPs in the biosphere model is described in the ''Biosphere Model Report'' (BSC 2004 [DIRS 169460], Section 6.2).

A. J. Smith

2004-09-09T23:59:59.000Z

105

Formation of algae growth constitutive relations for improved algae modeling.  

SciTech Connect (OSTI)

This SAND report summarizes research conducted as a part of a two year Laboratory Directed Research and Development (LDRD) project to improve our abilities to model algal cultivation. Algae-based biofuels have generated much excitement due to their potentially large oil yield from relatively small land use and without interfering with the food or water supply. Algae mitigate atmospheric CO2 through metabolism. Efficient production of algal biofuels could reduce dependence on foreign oil by providing a domestic renewable energy source. Important factors controlling algal productivity include temperature, nutrient concentrations, salinity, pH, and the light-to-biomass conversion rate. Computational models allow for inexpensive predictions of algae growth kinetics in these non-ideal conditions for various bioreactor sizes and geometries without the need for multiple expensive measurement setups. However, these models need to be calibrated for each algal strain. In this work, we conduct a parametric study of key marine algae strains and apply the findings to a computational model.

Gharagozloo, Patricia E.; Drewry, Jessica L.

2013-01-01T23:59:59.000Z

106

Addendum to "Lattice model for the screening potential of the classical one-component plasma"  

Science Journals Connector (OSTI)

An improvement upon Salpeter and Van Horn's relaxed-lattice model is made by taking into account the quadratic screening potential near zero separation. Implications of a recent experiment on dense plasmas are found to support the lattice model.

Naoki Itoh and Setsuo Ichimaru

1979-06-01T23:59:59.000Z

107

Experimental studies of irregular water wave component interactions with comparisons to the hybrid wave model  

E-Print Network [OSTI]

computed by Wheeler Stretching and Linear Extrapolation modifications to Linear Random Wave Theory and the Hybrid Wave Model. Extreme wave acceleration fields arc compared with Hybrid Wave Model acceleration fields only. Comparisons between measurements...

Longridge, Jonathon Kent

1993-01-01T23:59:59.000Z

108

Model-Based Sensor Placement for Component Condition Monitoring and Fault Diagnosis in Fossil Energy Systems  

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

Sensor Placement for Sensor Placement for Component Condition Monitoring and Fault Diagnosis in Fossil Energy Systems Background Fossil fuel power plants generate approximately two-thirds of the world's total electricity and are expected to continue this important role in the years ahead. Increasing global energy demands, aging and inefficient power plants, and increasingly stricter emission requirements will require high levels of performance, available capacity, efficiency, and

109

Bose condensate inb interaction with excitations - a two-component space-dependent model close to equilibrium  

E-Print Network [OSTI]

The paper considers a model for Bose gases in the so-called 'high-temperature range' below the temperature Tc, where Bose-Einstein condensation sets in.The model is of non-linear two-component type, consisting of a kinetic equation with periodic boundary conditions for the distribution function of a gas of excitations interacting with a Bose condensate, which is described by a Gross-Pitaevskii equation. Results on well-posedness and long time behaviour are proved in a H1-setting close to equilibrium.

L. Arkeryd; A. Nouri

2014-10-13T23:59:59.000Z

110

On the Inner Structure and Topology of Clusters in Two-Component Lipid Bilayers. Comparison of Monomer and Dimer Ising Models  

Science Journals Connector (OSTI)

Comparison of Monomer and Dimer Ising Models ... Clusters of two-component phospholipid bilayers have been simulated by two Ising-type lattice models: the monomer and the dimer model. ... The first theoretical model of a collective system, the model of ferromagnets, was developed by Ernst Ising(17) in 1925. ...

István P. Sugár

2008-08-26T23:59:59.000Z

111

On modeling the relative fitness of storage (data appendices)  

E-Print Network [OSTI]

Cache samples 241 V WorkloadMix model testing on Postmark samples 251 W WorkloadMix model testing on Cello

112

Eliciting fuzzy distributions from experts for ranking conceptual risk model components  

Science Journals Connector (OSTI)

An expert elicitation methodology was developed to integrate scientific knowledge from many studies at different spatial and temporal scales. The methodology utilised a structured one-to-one interview to elicit scale-dependent conceptual models and expert-weightings ... Keywords: Elicitation, Expert opinion, Fuzzy number, Phosphorus, Uncertainty, Water framework directive

T. Page; A. L. Heathwaite; L. J. Thompson; L. Pope; R. Willows

2012-10-01T23:59:59.000Z

113

Modelling Soft Tissue Deformations using Principal Component Analysis and Haptic Devices  

E-Print Network [OSTI]

. Gillies and Michail Bourmpos Department of Computing, Imperial College of Science, Technology and Medicine simulators designed to teach medical procedures. The technique is based on pre-computing a representative set training using computer graphics. However there is a computational problem in applying modern modelling

Gillies, Duncan

114

Predictions on the transverse momentum spectra for charged particle production at LHC-energies from a two component model  

E-Print Network [OSTI]

Transverse momentum spectra, $d^2\\sigma/(d\\eta dp_T^2)$, of charged hadron production in $pp$-collisions are considered in terms of a recently introduced two component model. The shapes of the particle distributions vary as a function of c.m.s. energy in the collision and the measured pseudorapidity interval. In order to extract predictions on the double-differential cross-sections $d^2\\sigma/(d\\eta dp_T^2)$ of hadron production for future LHC-measurements the different sets of available experimental data have been used in this study.

Bylinkin, Alexander; Rostovtsev, Andrei

2015-01-01T23:59:59.000Z

115

Kinetic Roughening and Phase Ordering in the Two-Component Growth Model  

E-Print Network [OSTI]

Interplay between kinetic roughening and phase ordering is studied in a growth SOS model with two kinds of particles and Ising-like interaction by Monte Carlo simulations. We found that, for a sufficiently large coupling, growth is strongly affected by interaction between species. Surface roughness increases rapidly with coupling. Scaling exponents for kinetic roughening are enhanced with respect to homogeneous situation. Phase ordering which leads to the lamellar structure persisting for a long time is observed. Surface profiles in strong coupling regime have a saw-tooth form, with the correlation between the positions of local minima and the domain boundaries. Key words: Computer simulations; Ising models; Growth; Surface roughening; Surface structure, morphology, roughness and topography. PACS: 81.10.Aj, 68.35.Ct, 75.70Kw 1 Introduction Growth by vapour deposition is a technologically important process for producing high quality materials. During last years much progress has been ma...

unknown authors

116

Developing a change-point principal component predictive model for energy use in a supermarket  

E-Print Network [OSTI]

of the Thanksgiving Day. On these days , the store opens fewer than 18 hours. The store has a typical supermarket electrical consumption pattern (2). The estimated distribution of the peak demand of the electrical systems is: refrigeration cases and compressors... on heat recovery from the refrigeration system and, therefore, does not consume electricity; however the COP of the refrigeration system increases as the ambient temperature decreases. Hence, it is desirable to develop a more general change point model...

Chen, Lu

2012-06-07T23:59:59.000Z

117

A Comparative Study of Estimation Models for Satellite Relative Motion  

E-Print Network [OSTI]

increases, the linear models begin to diverge greatly from the true response. The additional two models (the biased CW equations, and the linear STM) show decent performance under specific conditions. The former accounts for some of the unaccounted...

Desai, Uri

2013-01-31T23:59:59.000Z

118

March 23, 2008 DB:EER Model -1 1 ER to Relational Mapping  

E-Print Network [OSTI]

March 23, 2008 DB:EER Model - 1 1 ER to Relational Mapping #12;March 23, 2008 DB:EER Model - 1 2+ #12;March 23, 2008 DB:EER Model - 1 3 - Introduction In the previous lectures we looked at conceptual into a relational schema. #12;March 23, 2008 DB:EER Model - 1 4 - Mapping Entity Types Mapping of Regular Entity

Adam, Salah

119

Explaining the observed long coherence effects by 2D photon echo experiments in photosynthetic EET : Two-Component Phonon Spectrum model  

E-Print Network [OSTI]

We propose a simple stochastic model which successfully explains the long coherence effects observed in photosynthetic Excitation Energy Transport (EET) by 2D photon echo experiments of G. S. Engel et. al. (Nature, {\\bf 446} 782, (2007)). Our Two-Component Phonon Spectrum (TCPS) model is based upon the division of phonon degrees of freedom into a systematic component which is treated through polaron transformation and a stochastic component which is treated through dynamical disorder. This model successfully explains the observed long coherence upto $ \\sim 600 fsec$ in EET experiments.

Singh, Navinder; Amritkar, R E

2011-01-01T23:59:59.000Z

120

Multi-component modeling of quasielastic neutron scattering from phospholipid membranes  

SciTech Connect (OSTI)

We investigated molecular motions in the 0.3–350 ps time range of D{sub 2}O-hydrated bilayers of 1-palmitoyl-oleoyl-sn-glycero-phosphocholine and 1,2-dimyristoyl-sn-glycero-phosphocholine in the liquid phase by quasielastic neutron scattering. Model analysis of sets of spectra covering scale lengths from 4.8 to 30 Ć revealed the presence of three types of motion taking place on well-separated time scales: (i) slow diffusion of the whole phospholipid molecules in a confined cylindrical region; (ii) conformational motion of the phospholipid chains; and (iii) fast uniaxial rotation of the hydrogen atoms around their carbon atoms. Based on theoretical models for the hydrogen dynamics in phospholipids, the spatial extent of these motions was analysed in detail and the results were compared with existing literature data. The complex dynamics of protons was described in terms of elemental dynamical processes involving different parts of the phospholipid chain on whose motions the hydrogen atoms ride.

Wanderlingh, U., E-mail: uwanderlingh@unime.it; D’Angelo, G.; Branca, C.; Trimarchi, A.; Rifici, S.; Finocchiaro, D. [Dipartimento di Fisica e Scienze della Terra, University of Messina, I-98166 Messina (Italy)] [Dipartimento di Fisica e Scienze della Terra, University of Messina, I-98166 Messina (Italy); Conti Nibali, V. [Institute for Physical Chemistry II, Ruhr-University Bochum, Bochum (Germany)] [Institute for Physical Chemistry II, Ruhr-University Bochum, Bochum (Germany); Crupi, C. [IPCF-V.le F. Stagno D’Alcontres, n. 37, Messina 98158 (Italy)] [IPCF-V.le F. Stagno D’Alcontres, n. 37, Messina 98158 (Italy); Ollivier, J. [Institut Laue-Langevin, 6 rue J. Horowitz, BP 156, F-38042 Grenoble (France)] [Institut Laue-Langevin, 6 rue J. Horowitz, BP 156, F-38042 Grenoble (France); Middendorf, H. D. [Clarendon Laboratory, University of Oxford, Oxford (United Kingdom)] [Clarendon Laboratory, University of Oxford, Oxford (United Kingdom)

2014-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

A summary of recent refinements to the WAKE dispersion model, a component of the HGSYSTEM/UF{sub 6} model suite  

SciTech Connect (OSTI)

The original WAKE dispersion model a component of the HGSYSTEM/UF{sub 6} model suite, is based on Shell Research Ltd.`s HGSYSTEM Version 3.0 and was developed by the US Department of Energy for use in estimating downwind dispersion of materials due to accidental releases from gaseous diffusion plant (GDP) process buildings. The model is applicable to scenarios involving both ground-level and elevated releases into building wake cavities of non-reactive plumes that are either neutrally or positively buoyant. Over the 2-year period since its creation, the WAKE model has been used to perform consequence analyses for Safety Analysis Reports (SARs) associated with gaseous diffusion plants in Portsmouth (PORTS), Paducah (PGDP), and Oak Ridge. These applications have identified the need for additional model capabilities (such as the treatment of complex terrain and time-variant releases) not present in the original utilities which, in turn, has resulted in numerous modifications to these codes as well as the development of additional, stand-alone postprocessing utilities. Consequently, application of the model has become increasingly complex as the number of executable, input, and output files associated with a single model run has steadily grown. In response to these problems, a streamlined version of the WAKE model has been developed which integrates all calculations that are currently performed by the existing WAKE, and the various post-processing utilities. This report summarizes the efforts involved in developing this revised version of the WAKE model.

Yambert, M.W.; Lombardi, D.A.; Goode, W.D. Jr.; Bloom, S.G.

1998-08-01T23:59:59.000Z

122

Towards Modeling Dynamic Behavior with Integrated Qualitative Spatial Relations  

Science Journals Connector (OSTI)

Situation awareness and geographic information systems in dynamic spatial systems such as road traffic management (RTM) aim to detect and predict critical situations on the basis of relations between entities....

Stefan Mitsch; Werner Retschitzegger…

2011-01-01T23:59:59.000Z

123

March 23, 2008 DB:EER Model -1 1 EER to Relational Mapping  

E-Print Network [OSTI]

March 23, 2008 DB:EER Model - 1 1 EER to Relational Mapping #12;March 23, 2008 DB:EER Model - 1 2;March 23, 2008 DB:EER Model - 1 3 - Introduction In previous lecture we have looked at the mapping of ER of EER diagrams to relational schemas. We start by discussing the mapping of the superclass

Adam, Salah

124

Malaria in Africa: Vector Species' Niche Models and Relative Risk Maps  

E-Print Network [OSTI]

variable anthrophilicity of vectors and spatial variation in human population density. Relative risk maps are produced from these models. All models predict that human population density is the critical factorMalaria in Africa: Vector Species' Niche Models and Relative Risk Maps Alexander Moffett, Nancy

Sarkar, Sahotra

125

Relationalism  

E-Print Network [OSTI]

This article contributes to the debate of the meaning of relationalism and background independence, which has remained of interest in theoretical physics from Newton versus Leibniz through to foundational issues for today's leading candidate theories of quantum gravity. I contrast and compose the substantially different Leibniz--Mach--Barbour (LMB) and Rovelli--Crane (RC) uses of the word `relational'. Leibniz advocated primary timelessness and Mach that `time is to be abstracted from change'. I consider 3 distinct viewpoints on Machian time: Barbour's, Rovelli's and my own. I provide four expansions on Barbour's taking configuration space to be primary: to (perhaps a weakened notion of) phase space, categorizing, perspecting and propositioning. Categorizing means considering not only object spaces but also the corresponding morphisms and then functors between such pairs. Perspecting means considering the set of subsystem perspectives; this is an arena in which the LMB and Rovelli approaches make contact. By propositioning, I mean considering the set of propositions about a physical (sub)system. I argue against categorization being more than a formal pre-requisite for quantization in general; however, perspecting is a categorical operation, and propositioning leads one to considering topoi, with Isham and Doering's work represents one possibility for a mathematically sharp implementation of propositioning. Further applications of this article are arguing for Ashtekar variables as being relational in LMB as well as just the usually-ascribed RC sense, relationalism versus supersymmetry, string theory and M-theory. The question of whether scale is relational is also considered, with quantum cosmology in mind.

Edward Anderson

2014-07-15T23:59:59.000Z

126

Kinetic Modeling Study of the Ignition Process of Homogeneous Charge Compression Ignition Engine Fueled with Three-Component Diesel Surrogate  

Science Journals Connector (OSTI)

School of Energy & Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ... Such a computational study is also expected to provide insight into the fundamental understanding of the choice of neat constituents for the surrogate mixture and their relative proportions. ... The present study proposes surrogate models for the nine fuels for advanced combustion engines (FACE) that have been developed for studying low-emission, high-efficiency advanced diesel engine concepts. ...

Gan Xiao; Yusheng Zhang; Jing Lang

2013-02-11T23:59:59.000Z

127

Clausius relation and Friedmann equation in FRW universe model  

SciTech Connect (OSTI)

It has been shown that Friedmann equation of FRW universe can be derived from the first law of thermodynamics in Einstein gravity, Gauss-Bonnet gravity, Lovelock gravity, scalar-tensor gravity and f(R) gravity. Moreover, it was pointed out that the temperature of the apparent horizon can be obtained using the tunneling formalism for the corresponding observers defined by Kodama vector. In this article, we find that the energy flux through the apparent horizon can be determined by using the Kodama vector. This implies the fact that the Clausius relation and the first law of thermodynamics associated with the apparent horizon in FRW universe is relative to the Kodama observers. We illustrate the derivation of Friedmann equation, and also extend the study to the cases of Ho?ava-Lifshitz gravity and IR modified Ho?ava-Lifshitz gravity.

Cao, Qiao-Jun; Chen, Yi-Xin; Shao, Kai-Nan, E-mail: caoqiaojun@gmail.com, E-mail: yxchen@zimp.zju.edu.cn, E-mail: shaokn@gmail.com [Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027 (China)

2010-05-01T23:59:59.000Z

128

On the relation between Interpreted Systems and Kripke Models  

E-Print Network [OSTI]

systems, a sim- pli ed notion of Interpreted Systems, as semantic structures for reasoning about knowledge62]) and later used in Distributed Computing Theory by Halpern and Moses ( HF85]) and others proposed by Fagin, Halpern, Moses and Vardi HF85] to model distributed systems. The growing interest

Ryan, Mark

129

Electromagnetic Mass Models in General Theory of Relativity  

E-Print Network [OSTI]

"Electromagnetic mass" where gravitational mass and other physical quantities originate from the electromagnetic field alone has a century long distinguished history. In the introductory chapter we have divided this history into three broad categories -- classical, quantum mechanical and general relativistic. Each of the categories has been described at a length to get the detailed picture of the physical background. Recent developments on Repulsive Electromagnetic Mass Models are of special interest in this introductory part of the thesis. In this context we have also stated motivation of our work. In the subsequent chapters we have presented our results and their physical significances. It is concluded that the electromagnetic mass models which are the sources of purely electromagnetic origin ``have not only heuristic flavor associated with the conjecture of Lorentz but even a physics having unconventional yet novel features characterizing their own contributions independent of the rest of the physics".

Sumana Bhadra

2007-10-30T23:59:59.000Z

130

A void growth model relating fracture toughness and constraint  

E-Print Network [OSTI]

Committee: Dr. T. L. Anderson In ductile metals, the coalescing of voids with a crack tip results in stable crack growth. Under sufficiently high stresses, decohesion or cracking of particles in the matrix results in voids that nucleate from... these particles. Further deforination results in void growth, and coalescence occurs when the ligament (between two voids or between a void and a crack tip) collapses due to stress concentration. This research project combines mathematical models for nucleation...

Miller, Timothy Clark

1992-01-01T23:59:59.000Z

131

,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components"  

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

2 Relative Standard Errors for Table 7.2;" 2 Relative Standard Errors for Table 7.2;" " Unit: Percents." ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Selected Wood and Other Biomass Components" ,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components" " "," ",,,,,,,,,,,,,"Total",,,,,,,,,,,,,,,,,,,,,,,"Wood Residues",,,," " " "," "," ",,,,,"Bituminous",,,,,,"Electricity","Diesel Fuel",,,,,,"Motor",,,,,,,"Natural Gas",,,"Steam",,,," ",,,"and","Wood-Related","All"

132

,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components"  

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

Relative Standard Errors for Table 7.1;" Relative Standard Errors for Table 7.1;" " Unit: Percents." ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Selected Wood and Other Biomass Components" ,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components" " "," ",,,,,,,,,,,,,"Total",,,,,,,,,,,,,,,,,,,,,,,"Wood Residues",,,," " " "," "," ",,,,,"Bituminous",,,,,,"Electricity","Diesel Fuel",,,,,,"Motor",,,,,,,"Natural Gas",,,"Steam",,,," ",,,"and","Wood-Related","All"

133

Distance-redshift relations in an anisotropic cosmological model  

SciTech Connect (OSTI)

In this paper we study an anisotropic model generated from a particular Bianchi type-III metric, which is a generalization of Gödel's metric and an exact solution of Einstein's field equations. We analyse type Ia supernova data, namely the SDSS sample calibrated with the MLCS2k2 fitter, and we verify in which ranges of distances and redshifts the anisotropy could be observed. We also consider, in a joint analysis, the position of the first peak in the CMB anisotropy spectrum, as well as current observational constraints on the Hubble constant. We conclude that a small anisotropy is permitted by the data, and that more accurate measurements of supernova distances above z = 2 might indicate the existence of such anisotropy in the universe.

Menezes, R. S. Jr. [Instituto Federal da Bahia, Salvador, BA (Brazil); Pigozzo, C.; Carneiro, S., E-mail: rsmjr@ifba.edu.br, E-mail: cpigozzo@ufba.br, E-mail: saulo.carneiro.ufba@gmail.com [Instituto de Física, Universidade Federal da Bahia, Salvador, Bahia (Brazil)

2013-03-01T23:59:59.000Z

134

Stack Components  

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

Stack Components Stack Components Nancy L. Garland Energy Efficiency and Renewable Energy Hydrogen, Fuel Cells and Infrastructure Technologies Program Fuel Cell Team FORS 5G-086 (202) 586-5673 nancy.garland@ee.doe.gov Stack Components F u e l P r o c e s s o r Bipolar Plate Cathode + Anode - Electrolyte H+ H+ HYDROGEN OXYGEN Example shown is for acidic electrolytes Bipolar Plate e - e - O 2 O 2 O 2 e - H+ Bipolar Plate Bipolar Plate Cathode + Anode - Electrolyte H+ H+ H+ H+ HYDROGEN OXYGEN Example shown is for acidic electrolytes Bipolar Plate Bipolar Plate e - e - e - e - O 2 O 2 O 2 O 2 O 2 O 2 e - e - H+ H+ Power Stack Component Barriers $10 Other Bipolar Plates Membranes Electrodes $25 $5 $5 Fuel Cell Power Systems $45/kW BARRIERS * Stack material cost/manufacturing * Durability * Electrode performance * Thermal and water management Stack Component Targets

135

Surface Complexation of Neptunium(V) onto Whole Cells and Cell Components of Shewanella alga: Modeling and Experimental Study  

SciTech Connect (OSTI)

We systematically quantified surface complexation of Np(V) onto whole cells, cell wall, and extracellular polymeric substances (EPS) of Shewanella alga strain BrY. We first performed acid and base titrations and used the mathematical model FITEQL to estimate the concentrations and deprotonation constants of specific surface functional groups. Deprotonation constants most likely corresponded to a carboxyl group not associated with amino acids (pK{sub a} {approx} 5), a phosphoryl site (pK{sub a} {approx} 7.2), and an amine site (pK{sub a} > 10). We then carried out batch sorption experiments with Np(V) and each of the S. alga components as a function of pH. Since significant Np(V) sorption was observed on S. alga whole cells and its components in the pH range 2-5, we assumed the existence of a fourth site: a low-pK{sub a} carboxyl site (pK{sub a} {approx} 2.4) that is associated with amino acids. We used the SPECIATE submodel of the biogeochemical model CCBATCH to compute the stability constants for Np(V) complexation to each surface functional group. The stability constants were similar for each functional group on S. alga bacterial whole cells, cell walls, and EPS, and they explain the complicated sorption patterns when they are combined with the aqueous-phase speciation of Np(V). For pH < 8, the aquo NpO{sub 2}{sup +} species was the dominant form of Np(V), and its log K values for the low-pK{sub a} carboxyl, mid-pK{sub a} carboxyl, and phosphoryl groups were 1.8, 1.8, and 2.5-3.1, respectively. For pH greater than 8, the key surface ligand was amine > XNH{sub 3}{sup +}, which complexed with NpO{sub 2}(CO{sub 3}){sub 3}{sup 5-}. The log K for NpO{sub 2}(CO{sub 3}){sub 3}{sup 5-} complexed onto the amine groups was 3.1-3.9. All of the log K values are similar to those of Np(V) complexes with aqueous carboxyl and N-containing carboxyl ligands. These results help quantify the role of surface complexation in defining actinide-microbiological interactions in the subsurface.

Deo, Randhir P.; Songkasiri, Warinthorn; Rittmann, Bruce E.; Reed, Donald T. (King Mongkut); (AZU); (LANL)

2012-04-30T23:59:59.000Z

136

Durability of ACERT Engine Components  

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

strength data from with FE model "load factors" and stress field to estimate fast fracture strength and fatigue resistance of design component Determination of FE model "load...

137

Relative Permeabilities: a pore-level model study of the capillary number dependence  

SciTech Connect (OSTI)

Relative permeabilities are widely used by the petroleum industry in reservoir simulations of recovery strategies. In recent years, pore level modeling has been used to determine relative permeabilities at zero capillary number for a variety of more and more realistic model porous media. Unfortunately, these studies cannot address the issue of the observed capillary number dependence of the relative permeabilities. Several years ago, we presented a method for determining the relative permeabilities from pore-level modeling at general capillary number. We have used this method to determine the relative permeabilities at several capillary numbers and stable viscosity ratios. In addition, we have determined these relative permeabilities using one of the standard dynamic methods for determining relative permeabilities from core flood experiments. Our results from the two methods are compared with each other and with experimental results.

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

2008-03-01T23:59:59.000Z

138

Building and Connecting Components  

Science Journals Connector (OSTI)

While equations are an essential part of model development, it quickly becomes tedious to write out all the equations for the components in a system. In this chapter, we show how to reuse constitutive equation...

Michael Tiller Ph.D.

2001-01-01T23:59:59.000Z

139

An Additive Bivariate Hierarchical Model for Functional Data and Related Computations  

E-Print Network [OSTI]

, respec- tively. The random e ect curves, hT i(t) and hXi(x), are the individual subject-speci c deviations from the mean. Each of these functions are assumed to be estimable by a set of principal components. hT i(t) = KTX j=1 fj(t) i = f(t) i; (2..., the second the second most and so on. For the model to be identi able the principal components must be orthogonal, and the scores independent. The orthogonality means that tmaxZ tmin fi(t)fj(t)dt = ij; for i = 1; : : : ; K and j = 1; : : : ; K, where...

Redd, Andrew Middleton

2011-10-21T23:59:59.000Z

140

Some Ising model related results for certain subshifts of finite type  

E-Print Network [OSTI]

Some Ising model related results for certain subshifts of finite type Mattias Wallerstedt \\Lambda, Sweden, mattias@math.chalmers.se i #12; Abstract We generalise some results for the Ising model on nonamenable graphs 18 5 Large deviation results 21 6 References 31 iv #12; 1 Introduction The Ising model

Patriksson, Michael

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141

THREE-DIMENSIONAL SOLAR WIND MODELING FROM THE SUN TO EARTH BY A SIP-CESE MHD MODEL WITH A SIX-COMPONENT GRID  

SciTech Connect (OSTI)

The objective of this paper is to explore the application of a six-component overset grid to solar wind simulation with a three-dimensional (3D) Solar-InterPlanetary Conservation Element/Solution Element MHD model. The essential focus of our numerical model is devoted to dealing with: (1) the singularity and mesh convergence near the poles via the use of the six-component grid system, (2) the {nabla} {center_dot} B constraint error via an easy-to-use cleaning procedure by a fast multigrid Poisson solver, (3) the Courant-Friedrichs-Levy number disparity via the Courant-number insensitive method, (4) the time integration by multiple time stepping, and (5) the time-dependent boundary condition at the subsonic region by limiting the mass flux escaping through the solar surface. In order to produce fast and slow plasma streams of the solar wind, we include the volumetric heating source terms and momentum addition by involving the topological effect of the magnetic field expansion factor f{sub S} and the minimum angular distance {theta}{sub b} (at the photosphere) between an open field foot point and its nearest coronal hole boundary. These considerations can help us easily code the existing program, conveniently carry out the parallel implementation, efficiently shorten the computation time, greatly enhance the accuracy of the numerical solution, and reasonably produce the structured solar wind. The numerical study for the 3D steady-state background solar wind during Carrington rotation 1911 from the Sun to Earth is chosen to show the above-mentioned merits. Our numerical results have demonstrated overall good agreements in the solar corona with the Large Angle and Spectrometric Coronagraph on board the Solar and Heliospheric Observatory satellite and at 1 AU with WIND observations.

Feng Xueshang; Yang Liping; Xiang Changqing; Zhou Yufen; Zhong Dingkun [SIGMA Weather Group, State Key Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190 (China); Wu, S. T., E-mail: fengx@spaceweather.ac.c [Center for Space Plasma and Aeronomic Research, University of Alabama in Huntsville, Huntsville, AL 35899 (United States)

2010-11-01T23:59:59.000Z

142

Two dark matter components in dark matter extension of the minimal supersymmetric standard model and the high energy positron spectrum in PAMELA/HEAT data  

SciTech Connect (OSTI)

We present a dark matter extension of the minimal supersymmetric standard model to give the recent trend of the high energy positron spectrum of the PAMELA/HEAT experiments. If the trend is caused indeed by dark matter, the minimal supersymmetric standard model needs to be extended. Here, we minimally extend the minimal supersymmetric standard model with one more dark matter component N together with a heavy lepton E and introduce the coupling e{sub R}E{sub R}{sup c}N{sub R}. This coupling naturally appears in the flipped SU(5) grand unification models. We also present the needed parameter ranges of these additional particles.

Huh, Ji-Haeng; Kim, Jihn E.; Kyae, Bumseok [Department of Physics and Astronomy and Center for Theoretical Physics, Seoul National University, Seoul 151-747 (Korea, Republic of)

2009-03-15T23:59:59.000Z

143

A study on ally searching in maintenance alliance based on relation web model  

Science Journals Connector (OSTI)

Aiming at the risk aversion of adverse selection and efficiency improvement in maintenance ally searching, relation web and Mobile Agent are introduced into the study of maintenance ally searching. A maintenance ally searching method based on relation web model is proposed. First, the method decomposes complicated plant maintenance tasks, and then by setting up ally Searching Sub-Agent, the relation web model is mapped as properties, plans, behaviours and interactions of the Searching Sub-Agent. Based on the relation categories, shortest path, reliability and other definitions in relation to web model, a quantified evaluation method for acquaintance reliability and capability in maintenance alliance and ally searching strategy are designed. A solution for recommendation deadlock and dynamic management of Searching Sub-Agent is discussed. The ally searching system in maintenance alliance based on the above method is effectively applied in a plant overhaul of a partner petrochemical company.

Bai-Zhan Xia; Jian Liu; De-Jie Yu; An-Mei Zhou

2011-01-01T23:59:59.000Z

144

Modeling the Relative GHG Emissions of Conventional and Shale Gas Production  

Science Journals Connector (OSTI)

Modeling the Relative GHG Emissions of Conventional and Shale Gas Production ... Recent reports show growing reserves of unconventional gas are available and that there is an appetite from policy makers, industry, and others to better understand the GHG impact of exploiting reserves such as shale gas. ... The results show which parameters have most influence on GHG emissions intensity and which are relatively unimportant. ...

Trevor Stephenson; Jose Eduardo Valle; Xavier Riera-Palou

2011-11-15T23:59:59.000Z

145

A complete desktop phase-equilibria software package using object-oriented programming and the component object model  

E-Print Network [OSTI]

published data and observations. It has the following fomi: ls 10(o+?) I P " (2 4) Where F, is thc component characterization factor given by: F, =(i, ? (2 5) With: , . (2. 6) TD Tc The a and c coefficients dependent on pressure are given by: a =1...

Garcia, Jairo Medina

2002-01-01T23:59:59.000Z

146

CS 525: Advanced Database Organization Study of relational, semantic, and object-oriented data models and interfaces. Database management system  

E-Print Network [OSTI]

History of database management. Goals of database system development. Relational systems Data modelsCS 525: Advanced Database Organization Objectives Study of relational, semantic, and object-oriented data models and interfaces. Database management system techniques for query optimization, concurrency

Heller, Barbara

147

Proposed and existing passive and inherent safety-related structures, systems, and components (building blocks) for advanced light-water reactors  

SciTech Connect (OSTI)

A nuclear power plant is composed of many structures, systems, and components (SSCs). Examples include emergency core cooling systems, feedwater systems, and electrical systems. The design of a reactor consists of combining various SSCs (building blocks) into an integrated plant design. A new reactor design is the result of combining old SSCs in new ways or use of new SSCs. This report identifies, describes, and characterizes SSCs with passive and inherent features that can be used to assure safety in light-water reactors. Existing, proposed, and speculative technologies are described. The following approaches were used to identify the technologies: world technical literature searches, world patent searches, and discussions with universities, national laboratories and industrial vendors. 214 refs., 105 figs., 26 tabs.

Forsberg, C.W.; Moses, D.L.; Lewis, E.B.; Gibson, R.; Pearson, R.; Reich, W.J.; Murphy, G.A.; Staunton, R.H.; Kohn, W.E.

1989-10-01T23:59:59.000Z

148

A component-based collaboration infrastructure  

E-Print Network [OSTI]

-through in building reusable sys- tems. The popularity of di?erent component models in industry has demonstrated the attractions and power of CBD. Further more, modern object-oriented languages 18 such as Java and .Net provide direct support on component... . . . . . . . . . . . . . . . . . . . . . . . . . . 20 B. Shared Component Model . . . . . . . . . . . . . . . . . . 21 1. Modeling Shared Data . . . . . . . . . . . . . . . . . . 21 2. Java Embodiment . . . . . . . . . . . . . . . . . . . . 23 a. Shared Component . . . . . . . . . . . . . . . . . 23 b...

Yang, Yi

2006-04-12T23:59:59.000Z

149

X-ray lasers and methods utilizing two component driving illumination provided by optical laser means of relatively low energy and small physical size  

DOE Patents [OSTI]

An X-ray laser (10), and related methodology, are disclosed wherein an X-ray laser target (12) is illuminated with a first pulse of optical laser radiation (14) of relatively long duration having scarcely enough energy to produce a narrow and linear cool plasma of uniform composition (38). A second, relatively short pulse of optical laser radiation (18) is uniformly swept across the length, from end to end, of the plasma (38), at about the speed of light, to consecutively illuminate continuously succeeding portions of the plasma (38) with optical laser radiation having scarcely enough energy to heat, ionize, and invert them into the continuously succeeding portions of an X-ray gain medium. This inventive double pulse technique results in a saving of more than two orders of magnitude in driving optical laser energy, when compared to the conventional single pulse approach.

Rosen, Mordecai D. (Berkeley, CA); Matthews, Dennis L. (El Granada, CA)

1991-01-01T23:59:59.000Z

150

Integrating Program Component Executables  

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

Integrating Integrating Program Component Executables on Distributed Memory Architectures via MPH Chris Ding and Yun He Computational Research Division, Lawrence Berkeley National Laboratory University of California, Berkeley, CA 94720, USA chqding@lbl.gov, yhe@lbl.gov Abstract A growing trend in developing large and complex ap- plications on today's Teraflop computers is to integrate stand-alone and/or semi-independent program components into a comprehensive simulation package. One example is the climate system model which consists of atmosphere, ocean, land-surface and sea-ice. Each component is semi- independent and has been developed at different institu- tions. We study how this multi-component multi-executable application can run effectively on distributed memory archi- tectures. We identify five effective execution modes and de- velop the MPH library to support

151

MASS-ANGULAR-MOMENTUM RELATIONS IMPLIED BY MODELS OF TWIN PEAK QUASI-PERIODIC OSCILLATIONS  

SciTech Connect (OSTI)

Twin peak quasi-periodic oscillations (QPOs) appear in the X-ray power-density spectra of several accreting low-mass neutron star (NS) binaries. Observations of the peculiar Z-source Circinus X-1 display unusually low QPO frequencies. Using these observations, we have previously considered the relativistic precession (RP) twin peak QPO model to estimate the mass of the central NS in Circinus X-1. We have shown that such an estimate results in a specific mass-angular-momentum (M - j) relation rather than a single preferred combination of M and j. Here we confront our previous results with another binary, the atoll source 4U 1636-53 that displays the twin peak QPOs at very high frequencies, and extend the consideration to various twin peak QPO models. In analogy to the RP model, we find that these imply their own specific M - j relations. We explore these relations for both sources and note differences in the {chi}{sup 2} behavior that represent a dichotomy between high- and low-frequency sources. Based on the RP model, we demonstrate that this dichotomy is related to a strong variability of the model predictive power across the frequency plane. This variability naturally comes from the radial dependence of characteristic frequencies of orbital motion. As a consequence, the restrictions on the models resulting from observations of low-frequency sources are weaker than those in the case of high-frequency sources. Finally we also discuss the need for a correction to the RP model and consider the removing of M - j degeneracies, based on the twin peak QPO-independent angular momentum estimates.

Toeroek, Gabriel; Bakala, Pavel; Sramkova, Eva; Stuchlik, Zdenek; Urbanec, Martin; Goluchova, Katerina, E-mail: pavel.bakala@fpf.slu.cz, E-mail: martin.urbanec@fpf.slu.cz, E-mail: zdenek.stuchlik@fpf.slu.cz, E-mail: terek@volny.cz, E-mail: sram_eva@centrum.cz [Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezrucovo nam. 13, CZ-746 01 Opava (Czech Republic)

2012-12-01T23:59:59.000Z

152

Evaluating the Land and Ocean Components of the Global Carbon Cycle in the CMIP5 Earth System Models  

Science Journals Connector (OSTI)

The authors assess the ability of 18 Earth system models to simulate the land and ocean carbon cycle for the present climate. These models will be used in the next Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) for ...

A. Anav; P. Friedlingstein; M. Kidston; L. Bopp; P. Ciais; P. Cox; C. Jones; M. Jung; R. Myneni; Z. Zhu

2013-09-01T23:59:59.000Z

153

Arabidopsis and relatives as models for the study of genetic and genomic  

E-Print Network [OSTI]

self-incompatible and incompatible species, providing a platform for studying the impact of mating incompatibility; self-incompatibility; polyploid speciation 1. INTRODUCTION It is widely accepted that a commonReview Arabidopsis and relatives as models for the study of genetic and genomic incompatibilities

Weigel, Detlef

154

Numerical simulation of detonation structures using a thermodynamically consistent and fully conservative reactive flow model for multi-component computations  

Science Journals Connector (OSTI)

...there have been many advances in detonation modelling...apparent in figure 7 c. Recent experimental investigation...support by the Natural Sciences and Engineering Research...mixtures. In 42nd AIAA Aerospace Science Meeting and Exhibit...

2009-01-01T23:59:59.000Z

155

Characterizing two-phase flow relative permeabilities in chemicalflooding using a pore-scale network model  

SciTech Connect (OSTI)

A dynamic pore-scale network model is presented for investigating the effects of interfacial tension and oil-water viscosity on relative permeability during chemical flooding. This model takes into account both viscous and capillary forces in analyzing the impact of chemical properties on flow behavior or displacement configuration, as opposed to the conventional or invasion percolation algorithm which incorporates capillary pressure only. The study results indicate that both water and oil relative-permeability curves are dependent strongly on interfacial tension as well as an oil-water viscosity ratio. In particular, water and oil relative-permeability curves are both found to shift upward as interfacial tension is reduced, and they both tend to become linear versus saturation once interfacial tension is at low values. In addition, the oil-water viscosity ratio appears to have only a small effect under conditions of high interfacial tension. When the interfacial tension is low, however, water relative permeability decreases more rapidly (with the increase in the aqueous-phase viscosity) than oil relative permeability. The breakthrough saturation of the aqueous phase during chemical flooding tends to decrease with the reduction of interfacial tension and may also be affected by the oil-water viscosity ratio.

Liu, Qingjie; Shen, Pingping; Wu, Yu-Shu

2004-03-15T23:59:59.000Z

156

A non-LTE modeling of narrow emission components of He and Ca lines in optical spectra of CTTS  

E-Print Network [OSTI]

A spectrum of a hot spot, produced by radiation of accretion shock at T Tauri star's surface, has been calculated taking into account non-LTE effects for HeI, HeII, CaI and CaII, using LTE-calculations of spot's atmospheric structure, calculated by Dodin & Lamzin (2012). Assuming that pre-shock gas number density N_0 and its velocity V_0 are the same across the accretion column, we calculated spectra of a system "star + round spot" for a set of N_0, V_0 values and parameters, which characterized the star and the spot. It has been shown that theoretical spectra with an appropriate choice of the parameters reproduce well observed veiling of photospheric absorption lines in optical band as well as profiles and intensities of so-called narrow components of HeII and CaI emission lines in spectra of 9 stars. We found that the accreted gas density N_0>10^{12} cm^{-3} for all considered stars except DK Tau. Observed spectra of 8 stars were succesfully fitted, asuming solar abundance of calcium, but it appeared po...

Dodin, A V; Sitnova, T M

2013-01-01T23:59:59.000Z

157

A relation between moduli space of D-branes on orbifolds and Ising model  

E-Print Network [OSTI]

We study D-branes transverse to an abelian orbifold C^3/Z_n Z_n. The moduli space of the gauge theory on the D-branes is analyzed by combinatorial calculation based on toric geometry. It is shown that the calculation is related to a problemto count the number of ground states of an antiferromagnetic Ising model. The lattice on which the Ising model is defined is a triangular one defined on the McKay quiver of the orbifold.

Tomomi Muto

2005-08-31T23:59:59.000Z

158

A general numerical solution of dispersion relations for the nuclear optical model  

E-Print Network [OSTI]

A general numerical solution of the dispersion integral relation between the real and the imaginary parts of the nuclear optical potential is presented. Fast convergence is achieved by means of the Gauss-Legendre integration method, which offers accuracy, easiness of implementation and generality for dispersive optical model calculations. The use of this numerical integration method in the optical-model parameter search codes allows for a fast and accurate dispersive analysis. PACS number(s): 11.55.Fv, 24.10.Ht, 02.60.Jh

Roberto Capote; Alberto Molina; Jose Manuel Quesada

2001-05-09T23:59:59.000Z

159

A theoretical model for adsorption capacities of charcoal beds: I, Relative humidity effects  

SciTech Connect (OSTI)

Water vapor is the major interferent in the adsorption of other vapors from air when that air is passed through an activated charcoal bed. A limited amount of data (published and unpublished) is available on the magnitudes of capacity (or service life) reduction as a function of relative humidity (water vapor concentration) and preadsorbed water. A simple equilibrium model has been developed which quantitatively explains observed humidity effects and allows extrapolation of data to untested conditions. 9 refs., 4 figs., 2 tabs.

Wood, G.O.

1987-01-01T23:59:59.000Z

160

Degeneracies and scaling relations in general power-law models for gravitational lenses  

E-Print Network [OSTI]

The time delay in gravitational lenses can be used to derive the Hubble constant in a relatively simple way. The results of this method are less dependent on astrophysical assumptions than in many other methods. The most important uncertainty is related to the mass model used. We discuss a family of models with a separable radial power-law and an arbitrary angular dependence for the potential psi = r^beta * F(theta). Isothermal potentials are a special case of these models with beta=1. An additional external shear is used to take into account perturbations from other galaxies. Using a simple linear formalism for quadruple lenses, we can derive H0 as a function of the observables and the shear. If the latter is fixed, the result depends on the assumed power-law exponent according to H0 proportional to (2-beta)/beta. The effect of external shear is quantified by introducing a `critical shear' gamma_c as a measure for the amount of shear that changes the result significantly. The analysis shows, that in the general case H0 and gamma_c do not depend on the position of the lens galaxy. We discuss these results and compare with numerical models for a number of real lens systems.

Olaf Wucknitz

2002-02-20T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Fault diagnosis of electric railway traction substation with model-based relation guiding algorithm  

Science Journals Connector (OSTI)

Abstract Most diagnosis systems used in electric railway traction substation are expert systems based on experience, which cannot diagnose faults beyond experience and are very difficult for transplantation and maintenance. In this paper, the model-based diagnosis (MBD) with integration reasoning is firstly used for fault diagnosis of electric railway traction substation. Aiming at the structural characteristics and actual demands of traction substation, we propose a detailed application plan. Rules for element and system models are established. In addition, we propose a relation guiding algorithm (RGA) for searching candidates of minimal conflict set, in which the hidden messages of analytical redundancy relations can be made full use of and the searching space is reduced further. Taking the autotransformer (AT) traction substation in Hefei–Nanjing Passenger Link of China Railway as an example, we construct models for different device objects, and give the descriptions of system model in traction substation. Based on a sequence of fault observations, the fault diagnosis is tested with the proposed plan. The diagnosis result shows that the application plan with MBD and integration reasoning is feasible and effective for traction substation.

Zhigang Liu; Zhiwei Han

2014-01-01T23:59:59.000Z

162

Pump-probe model for the Kramers-Kronig relations in a laser  

E-Print Network [OSTI]

In this paper, we study theoretically a pump-probe model for the Kramers-Kronig (KK) relations during laser operation. A laser gain medium at steady state becomes saturated and the lasing field experiences a flat gain equal to the cavity loss. A solution of the laser equations reveals that the lasing frequency experiences a dispersion that is linear over the allowed bandwidth. However, outside this band, the lasing stops, so that the dispersion is that of the unsaturated gain medium. The combined profile is therefore non-analytical, and cannot be explained in terms of the KK relations. In order to interpret this situation, it is important to consider carefully the physical basis of the KK relations and its connection to causality. We conclude that the KK relation is expected to apply only to an independent probe applied to the medium, which is under excitation by the pump producing the gain as well as the lasing mode. The absorption/gain and dispersion profiles are then analytical, and satisfy the KK-relations. Specifically, these are variants of the so-called Mollow-Ezekiel spectra of probe absorption/gain and dispersion in the presence of a pump, with the exception that in this case the medium is inverted.

Honam Yum; Selim M. Shahriar

2010-03-18T23:59:59.000Z

163

Final report for grant DE-FG02-06ER64182: "Evaluation and Improvement of the Cloud Resolving Model Component of the Multi-Scale Modeling Framework"  

SciTech Connect (OSTI)

The overall aim of the larger collaborative effort of which this project was part was to evaluate and improve the cloud system resolving model (CSRM) at the heart of the multi-scale modeling framework (MMF). Our task at the University of Colorado our effort was to develop methods that would let us evaluate the performance of cloud-scale models at the ARM SGP site using ARM remote sensing products.

Pincus, Robert [University of Colorado] [University of Colorado

2009-10-13T23:59:59.000Z

164

On a Bipolar Model of Hyperbolic Geometry and its Relation to Hyperbolic Robertson-Walker Space  

E-Print Network [OSTI]

Negatively curved, or hyperbolic, regions of space in an FRW universe are a realistic possibility. These regions might occur in voids where there is no dark matter with only dark energy present. Hyperbolic space is strange and various "models" of hyperbolic space have been introduced, each offering some enlightened view. In the present work we develop a new bipolar model of hyperbolic geometry, closely related to an existing model - the band model - and show that it provides new insights toward an understanding of hyperbolic as well as elliptic Robertson-Walker space and the meaning of its isometries. In particular, we show that the circular geodesics of a hyperbolic Robertson-Walker space can be referenced to two real centers - a Euclidean center and an offset hyperbolic center. These are not the Euclidean center or poles of the bipolar coordinate system but rather refer to two distinct centers for circular orbits of particles in such systems. Considering the physics of elliptic RW space is so well confirmed in the Lambda-CDM model with respect to Euclidean coordinates from a Euclidean center, it is likely that the hyperbolic center plays a physical role in regions of hyperbolic space.

Harry I. Ringermacher; Lawrence R. Mead

2012-01-25T23:59:59.000Z

165

Nonthermal Two Component Dark Matter Model for Fermi-LAT $\\gamma$-ray excess and 3.55 keV X-ray Line  

E-Print Network [OSTI]

A two component model of nonthermal dark matter is formulated to simultaneously explain the Fermi-LAT results indicating a $\\gamma$-ray excess observed from our Galactic Centre in the 1-3 GeV energy range and the detection of an X-ray line at 3.55 keV from extra galactic sources. Two additional Standard Model singlet scalar fields $S_2$ and $S_3$ are introduced. These fields couple among themselves and with the Standard Model Higgs doublet $H$. The interaction terms among the scalar fields, namely $H$, $S_2$ and $S_3$, are constrained by the application of a discrete $\\mathbb{Z}_2\\times \\mathbb{Z}^\\prime_2$ symmetry which breaks softly to a remnant $\\mathbb{Z}^{\\prime \\prime}_2$ symmetry. This residual discrete symmetry is then spontaneously broken through an MeV order vacuum expectation value $u$ of the singlet scalar field $S_3$. The resultant physical scalar spectrum has the Standard Model like Higgs as $\\chi_{{}_{{}_1}}$ with $M_{\\chi_{{}_{{}_1}}}\\sim 125$ GeV, a moderately heavy scalar $\\chi_{{}_{{}_2}}$...

Biswas, Anirban; Roy, Probir

2015-01-01T23:59:59.000Z

166

Correct Execution of Reconfiguration for Stateful Components  

Science Journals Connector (OSTI)

In component-based software engineering, reconfiguration describes structural changes to the architecture of a component system. For stateful components, not only structural but also behavioural aspects have to be taken into account in reconfiguration. ... Keywords: Reconfiguration, model checking, stateful components

Moritz Hammer; Alexander Knapp

2010-01-01T23:59:59.000Z

167

Low-temperature Swelling in LWR Internal Components: Current Data and  

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

Low-temperature Swelling in LWR Internal Components: Current Data Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment Recent experimental observations have made it clear that cavity formation can occur in light-water reactor internal components fabricated from austenitic stainless during the course of their service life. In order to assess the potential for cavity swelling in these components at end-of-life doses, it is necessary to develop a validated computational model that incorporates the relevant physical mechanisms and accounts for recent experiment data. Such a modeling activity is underway; the model development and some preliminary results are described. For the relatively low temperatures involved, cavity formation is shown to be sensitive to

168

Low-temperature Swelling in LWR Internal Components: Current Data and  

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

Low-temperature Swelling in LWR Internal Components: Current Data Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment Low-temperature Swelling in LWR Internal Components: Current Data and Modeling Assessment Recent experimental observations have made it clear that cavity formation can occur in light-water reactor internal components fabricated from austenitic stainless during the course of their service life. In order to assess the potential for cavity swelling in these components at end-of-life doses, it is necessary to develop a validated computational model that incorporates the relevant physical mechanisms and accounts for recent experiment data. Such a modeling activity is underway; the model development and some preliminary results are described. For the relatively low temperatures involved, cavity formation is shown to be sensitive to

169

Baseline for Climate Change: Modeling Watershed Aquatic Biodiversity Relative to Environmental and Anthropogenic Factors  

SciTech Connect (OSTI)

Objectives of the two-year study were to (1) establish baselines for fish and macroinvertebrate community structures in two mid-Atlantic lower Piedmont watersheds (Quantico Creek, a pristine forest watershed; and Cameron Run, an urban watershed, Virginia) that can be used to monitor changes relative to the impacts related to climate change in the future; (2) create mathematical expressions to model fish species richness and diversity, and macroinvertebrate taxa and macroinvertebrate functional feeding group taxa richness and diversity that can serve as a baseline for future comparisons in these and other watersheds in the mid-Atlantic region; and (3) heighten people’s awareness, knowledge and understanding of climate change and impacts on watersheds in a laboratory experience and interactive exhibits, through internship opportunities for undergraduate and graduate students, a week-long teacher workshop, and a website about climate change and watersheds. Mathematical expressions modeled fish and macroinvertebrate richness and diversity accurately well during most of the six thermal seasons where sample sizes were robust. Additionally, hydrologic models provide the basis for estimating flows under varying meteorological conditions and landscape changes. Continuations of long-term studies are requisite for accurately teasing local human influences (e.g. urbanization and watershed alteration) from global anthropogenic impacts (e.g. climate change) on watersheds. Effective and skillful translations (e.g. annual potential exposure of 750,000 people to our inquiry-based laboratory activities and interactive exhibits in Virginia) of results of scientific investigations are valuable ways of communicating information to the general public to enhance their understanding of climate change and its effects in watersheds.

Maurakis, Eugene G

2010-10-01T23:59:59.000Z

170

The relative variational model: A topological view of matter and its properties: Specific heat and enthalpy  

SciTech Connect (OSTI)

Formal definitions of convergence, connected-ness and continuity were established to characterize and describe the crystalline solid and its properties as a unified notion in the topological space. The crystalline solid is a previously empty space that has been filled with atoms and phonons, i.e., the crystal is built with packages of matter and energy in a regular and orderly repetitive pattern along three orthogonal dimensions of the space. The spatial occupation of the atom in the crystal structure is determined by its mean vibrational volume. Thus, the changes of volume and the changes of internal energy are intrinsically linked. In fact, physical and material properties are the interdependent and bijective quantifications associated with variations of the internal energy. These properties are modeled by means of an intrinsic and invariable form function: the Relative Variational Model. In this paper, the Debye's integral of the heat capacity at constant volume is analytically solved. The experimental data of the specific heat at constant pressure and the enthalpy variations are also analytically depicted by the model in the temperature range of 0 K up to the melting point. The data reductions were applied to the oxides Al{sub 2}O{sub 3} and UO{sub 2}. (authors)

Dias, M. S.; De Vasconcelos, V.; Mattos, J. R. L. [Center for Development of the Nuclear Technology - CDTN, National Commission for the Nuclear Energy - CNEN, PO Box: 941, 30.161-970, Belo Horizonte, Minas Gerais (Brazil); Jordao, E. [Chemistry Engineering Dept., Campinas State Univ., FEQ/ UNICAMP, Av. Albert Einstein, 500, 13083-852, Campinas, Sao Paulo (Brazil)

2012-07-01T23:59:59.000Z

171

Online Robot Dead Reckoning Localization Using Maximum Relative Entropy Optimization With Model Constraints  

SciTech Connect (OSTI)

The principle of Maximum relative Entropy optimization was analyzed for dead reckoning localization of a rigid body when observation data of two attached accelerometers was collected. Model constraints were derived from the relationships between the sensors. The experiment's results confirmed that accelerometers each axis' noise can be successfully filtered utilizing dependency between channels and the dependency between time series data. Dependency between channels was used for a priori calculation, and a posteriori distribution was derived utilizing dependency between time series data. There was revisited data of autocalibration experiment by removing the initial assumption that instantaneous rotation axis of a rigid body was known. Performance results confirmed that such an approach could be used for online dead reckoning localization.

Urniezius, Renaldas [Kaunas University of Technology, Kaunas (Lithuania)

2011-03-14T23:59:59.000Z

172

Numerical Modeling of Geomechanical Processes Related to CO{sub 2} Injection within Generic Reservoirs  

SciTech Connect (OSTI)

In this project generic anticline structures have been used for numerical modeling analyses to study the influence of geometrical parameters, fluid flow boundary conditions, in situ stress regime and inter-bedding friction coefficient on geomechanical risks such as fracture reactivation and fracture generation. The resulting stress states for these structures are also used to determine safe drilling directions and a methodology for wellbore trajection optimization is developed that is applicable for non-Andersonian stress states. The results of the fluid flow simulation show that the type of fluid flow boundary condition is of utmost importance and has significant impact on all injection related parameters. It is recommended that further research is conducted to establish a method to quantify the fluid flow boundary conditions for injection applications. The results of the geomechanical simulation show that in situ stress regime is a crucial, if not the most important, factor determining geomechanical risks. For extension and strike slip stress regimes anticline structures should be favored over horizontally layered basin as they feature higher ?P{sub c} magnitudes. If sedimentary basins are tectonically relaxed and their state of stress is characterized by the uni-axial strain model the basin is in exact frictional equilibrium and fluids should not be injected. The results also show that low inter bedding friction coefficients effectively decouple layers resulting in lower ?P{sub c} magnitudes, especially for the compressional stress regime.

Eckert, Andreas

2013-05-31T23:59:59.000Z

173

SEX DIFFERENCES IN GENE EXPRESSION AND PAIN-RELATED BEHAVIORS IN A PRECLINICAL MODEL OF MIGRAINE  

E-Print Network [OSTI]

receptor called calcitonin-like receptor (CLR), a receptor activity-modifying protein (RAMP1), and a coupling protein, receptor component protein (RCP). Thus, the availability and sensitivity of this receptor is subject to regulation at numerous levels...

Stucky, Nicholas Ling

2010-06-01T23:59:59.000Z

174

Multi-Assay-Based Structure?Activity Relationship Models: Improving Structure?Activity Relationship Models by Incorporating Activity Information from Related Targets  

Science Journals Connector (OSTI)

In this paper, we present a new class of methods for building SAR models, referred to as multi-assay based, that utilize activity information from different targets. ... Depending on the method, this SAR model will be built using either its own activity information (baseline SAR model) or additional information obtained from its set of related targets (multi-assay-based SAR model). ... To illustrate the cross-family nature of the multi-assay-based methods, Figure 3 shows the set of related proteins for the different proteins within and across the different families (Ktkligs and m = 3). ...

Xia Ning; Huzefa Rangwala; George Karypis

2009-10-20T23:59:59.000Z

175

Axisymmetric equilibrium models for magnetized neutron stars in General Relativity under the Conformally Flat Condition  

E-Print Network [OSTI]

Extremely magnetized neutron stars with magnetic fields as strong as $\\sim 10^{15-16}$ G, or magnetars, have received considerable attention in the last decade due to their identification as a plausible source for Soft Gamma Repeaters and Anomalous X-ray Pulsars. Moreover, this class of compact objects has been proposed as a possible engine capable of powering both Long and Short Gamma-Ray Bursts, if the rotation period in their formation stage is short enough (~1 ms). Such strong fields are expected to induce substantial deformations of the star and thus to produce the emission of gravitational waves. Here we investigate, by means of numerical modeling, axisymmetric static equilibria of polytropic and strongly magnetized stars in full general relativity, within the ideal magneto-hydrodynamic regime. The eXtended Conformally Flat Condition (XCFC) for the metric is assumed, allowing us to employ the techniques introduced for the X-ECHO code [Bucciantini & Del Zanna, 2011, Astron. Astrophys. 528, A101], pro...

Pili, A G; Del Zanna, L

2014-01-01T23:59:59.000Z

176

Building Component Library | Open Energy Information  

Open Energy Info (EERE)

Building Component Library Building Component Library Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Building Component Library Agency/Company /Organization: NREL Sector: Energy Focus Area: Buildings Phase: Create a Vision, Evaluate Options, Develop Goals, Prepare a Plan Topics: Resource assessment, Technology characterizations Resource Type: Dataset Website: bcl.nrel.gov Cost: Free OpenEI Keyword(s): buildings, nrel, data, component Language: English Building Component Library Screenshot References: Buildings Component Library[1] The Building Component Library is a repository of building data used to create building energy models. The Building Component Library is a repository of building data used to create building energy models. The data are broken down into separate

177

A constraint solver for software engineering : finding models and cores of large relational specifications  

E-Print Network [OSTI]

Relational logic is an attractive candidate for a software description language, because both the design and implementation of software often involve reasoning about relational structures: organizational hierarchies in the ...

Torlak, Emina, 1979-

2009-01-01T23:59:59.000Z

178

Exploration model for unconformity-related hydrocarbon accumulations in Cherokee Group for western Kansas  

SciTech Connect (OSTI)

The sandstones of the Desmoinesian Cherokee Group in western Kansas are important hydrocarbon producers. The Start oil field in Rush and Ness Counties is an example of an unconformity-related Cherokee accumulation from which an exploration model can be made. In this field, the upper Cherokee member is economically important and is interpreted to be a marine unit deposited on the distal portion of an alluvial plain. Traps and reservoirs in this unit were formed by winnowing of clay and silt-sized material from sediments deposited on the crests of paleohighs. Four maps are useful in exploring for upper Cherokee hydrocarbon accumulations such as Start. An isopach map of the Cherokee group is useful for locating thins that coincide with paleohighs on the basal Pennsylvanian unconformity. An isopach map from the Cherokee Group is useful for locating thins that coincide with paleohighs on the basal Pennsylvanian unconformity. An isopach map from the Cherokee top down to the first sandstone porosity is useful. Thins of this interval define areas where wave and current action have winnowed finer material from sands. Closed anticlines on a Cherokee structure map are areas where Cherokee reservoirs are likely to be oil bearing rather than water bearing. An isopach map from the Cimarronian stone Corral anhydrite top down to the Missourian Lansing Group top is also useful. Thins of this interval correspond to paleohighs on the basal Pennsylvanian unconformity. This interval can be picked from seismic records. Prospective areas occur where isopach thins of Stone Corral to Lansing, of Cherokee Group, and of Cherokee top to first sandstone porosity coincide with Cherokee anticlinal structure.

Bieber, D.W.

1985-02-01T23:59:59.000Z

179

PGMA Model  

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

PGMA Model PGMA Model PM-G1-F1-012802.doc Revised January 28, 2002 Page 1 The PGMA (Policy, Guidance, Metrics, Assessments) was originally conceived as a model to provide the framework for developing the components for DOE Information Technology (IT) related policies. Its specific purpose is to drive the development of the four components and ensure a corresponding element within each component. The model components are: POLICY C A concise statement supporting the Department=s needs for quality business solutions. C Link to existing IT policy statements without redundancy. GUIDANCE C Documentation, templates, references, checklists, training, (using Web and other means) to provide implementation mechanisms and techniques for policy adherence.

180

Scaling relations of earthquakes and aseismic deformation in a damage rheology model  

Science Journals Connector (OSTI)

......rheology model accounts for fundamental aspects of brittle rock...algorithm. Variable boundary forces applied to the model...seismology, in source Handbook of Earthquake and Engineering...deformation from point forces and force couples located in welded......

Vladimir Lyakhovsky; Yehuda Ben-Zion

2008-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Relative Contributions of Polyphenolic Constituents to the Antioxidant Status of Wines:? Development of a Predictive Model  

Science Journals Connector (OSTI)

The concentrations of 17 phenolic constituents in red wine were analyzed by a number of multiple regression models for their contribution to total antioxidant status (TAS). The best model discovered involved a stepwise selection process starting by ...

George J. Soleas; George Tomlinson; Eleftherios P. Diamandis; David M. Goldberg

1997-10-15T23:59:59.000Z

182

Implementing and Evaluating the Common Information Model in a Relational and RDF-based Database  

Science Journals Connector (OSTI)

During the last decade, the Common Information Model (CIM) has evolved to an extensive ontology for the domain of energy markets. As the CIM does only offer an UML model for ... Therefore, it is necessary to crea...

Stefan Schulte; Rainer Berbner…

2007-01-01T23:59:59.000Z

183

Numerical Wave Modeling in Conditions with Strong Currents: Dissipation, Refraction, and Relative Wind  

Science Journals Connector (OSTI)

Currents effects on waves have led to many developments in numerical wave modeling over the past two decades, from numerical choices to parameterizations. The performance of numerical models in conditions with strong currents is reviewed here, and ...

Fabrice Ardhuin; Aron Roland; Franck Dumas; Anne-Claire Bennis; Alexei Sentchev; Philippe Forget; Judith Wolf; Françoise Girard; Pedro Osuna; Michel Benoit

2012-12-01T23:59:59.000Z

184

Modeling and computer simulation of the identification problem related to the sludge concentration in a settler  

Science Journals Connector (OSTI)

The mathematical model of sludge particles settling in the water treatment plant (settler) is considered. In the case of the residence time of sludge particles in the settler the model leads to a nonlinear age-dependent transport-diffusion with a nonlocal ... Keywords: Nonlocal condition, Optimal control, Settler model, Sludge concentration, Transport-diffusion equation

Burhan Pekta?

2009-03-01T23:59:59.000Z

185

Physical Components, Coordinate Components, and the Speed of Light  

E-Print Network [OSTI]

For generalized coordinate systems, the numerical values of vector and tensor components do not generally equal the physical values, i.e., the values one would measure with standard physical instruments. Hence, calculating physical components from coordinate components is important for comparing experiment with theory. Surprisingly, however, this calculational method is not widely known among physicists, and is rarely taught in relativity courses, though it is commonly employed in at least one other field (applied mechanics.) Different derivations of this method, ranging from elementary to advanced level, are presented. The result is then applied to clarify the oftentimes confusing issue of whether or not the speed of light in non-inertial frames is equal to c.

Robert D. Klauber

2001-05-18T23:59:59.000Z

186

Model-Independent Extraction of |V_{cb}| Using Dispersion Relations  

E-Print Network [OSTI]

We present a method for parametrizing heavy meson semileptonic form factors using dispersion relations, and from it produce a two-parameter description of the B -> B elastic form factor. We use heavy quark symmetry to relate this function to B->D* l \

C. Glenn Boyd; Benjamin Grinstein; Richard F. Lebed

1995-04-06T23:59:59.000Z

187

Accepted to Diamond and Related Materials A kinetic model of diamond nucleation and silicon carbide interlayer formation during  

E-Print Network [OSTI]

Accepted to Diamond and Related Materials A kinetic model of diamond nucleation and silicon carbide Engineering, Colorado State University, Fort Collins, CO, USA Abstract The presence of thin silicon carbide diffusion of carbon atoms into the silicon carbide layer, and the morphology and orientation of the diamond

Dandy, David

188

The accretion history of dark matter halos III: A physical model for the concentration-mass relation  

E-Print Network [OSTI]

We present a semi-analytic, physically motivated model for dark matter halo concentration as a function of halo mass and redshift. The semi-analytic model is intimately based on hierarchical structure formation. It uses an analytic model for the halo mass accretion history, based on extended Press Schechter (EPS) theory, and an empirical relation between concentration and an appropriate definition of formation time obtained through fits to the results of numerical simulations. The resulting concentration-mass relations are tested against the simulations and do not exhibit an upturn at high masses or high redshifts as claimed by recent works. Because our semi-analytic model is based on EPS theory, it can be applied to wide ranges in mass, redshift and cosmology. We predict a change of slope in the z=0 concentration-mass relation at a mass scale of $10^{11}\\rm{M}_{\\odot}$, that is caused by the varying power in the density perturbations. We provide best-fitting expressions of the $c-M$ relations as well as nume...

Correa, Camila A; Schaye, Joop; Duffy, Alan R

2015-01-01T23:59:59.000Z

189

A stochastic agent-based model of pathogen propagation in dynamic multi-relational social networks  

Science Journals Connector (OSTI)

We describe a general framework for modeling and stochastic simulation of epidemics in realistic dynamic social networks, which incorporates heterogeneity in the types of individuals, types of interconnecting risk-bearing relationships, and types of ... Keywords: Agent-based systems, Social Factors for HIV Risk, modeling and simulation environments, network-based simulation, risk network, system dynamics

Bilal Khan, Kirk Dombrowski, Mohamed Saad

2014-04-01T23:59:59.000Z

190

Automated cleaning of electronic components  

SciTech Connect (OSTI)

Environmental and operator safety concerns are leading to the elimination of trichloroethylene and chlorofluorocarbon solvents in cleaning processes that remove rosin flux, organic and inorganic contamination, and particulates from electronic components. Present processes depend heavily on these solvents for manual spray cleaning of small components and subassemblies. Use of alternative solvent systems can lead to longer processing times and reduced quality. Automated spray cleaning can improve the quality of the cleaning process, thus enabling the productive use of environmentally conscious materials, while minimizing personnel exposure to hazardous materials. We describe the development of a prototype robotic system for cleaning electronic components in a spray cleaning workcell. An important feature of the prototype system is the capability to generate the robot paths and motions automatically from the CAD models of the part to be cleaned, and to embed cleaning process knowledge into the automatically programmed operations.

Drotning, W.; Meirans, L.; Wapman, W.; Hwang, Y.; Koenig, L.; Petterson, B.

1994-07-01T23:59:59.000Z

191

Modeling of Coastal Inundation, Storm Surge, and Relative Sea-Level Rise at Naval Station Norfolk, Norfolk, Virginia, U.S.A.  

E-Print Network [OSTI]

Modeling of Coastal Inundation, Storm Surge, and Relative Sea- Level Rise at Naval Station Norfolk. Modeling of coastal inundation, storm surge, and relative sea-level rise at Naval Station Norfolk, Norfolk, and relative sea-level-rise (RSLR) scenarios were examined at the U.S. Naval Station, Norfolk, Virginia

US Army Corps of Engineers

192

On the Relation between Classical and Quantum Cosmology in a 2-Dimensional Dilaton-Gravity Model  

E-Print Network [OSTI]

We analyse the classical and quantum theory of a scalar field interacting with gravitation in two dimensions. We describe a class of analytic solutions to the Wheeler-DeWitt equation from which we are able to synthesise states that give prominence to a set of classical cosmologies. These states relate in a remarkable way to the general solution of the classical field equations. We express these relations, without approximation, in terms of a metric and a closed form on the domain of quantum states.

M Onder; R W Tucker

1994-03-02T23:59:59.000Z

193

Electronic Component Obsolescence  

SciTech Connect (OSTI)

Electronic component obsolescence occurs when parts are no longer available to support the manufacture and/or repair of equipment still in service. Future instrumentation containing complex components WILL face obsolescence issues as technology advances. This paper describes hardware and software obsolescence as well as factors to consider when designing new instrumentation.

Sohns, Carl William [ORNL; Ward, Christina D [ORNL

2010-01-01T23:59:59.000Z

194

Investigating Binary Black Hole Mergers with Principal Component Analysis  

E-Print Network [OSTI]

Despite recent progress in numerical simulations of the coalescence of binary black hole systems, highly asymmetric spinning systems and the construction of accurate physical templates remain challenging and computationally expensive. We explore the feasibility of a prompt and robust test of whether the signals exhibit evidence for generic features that can educate new simulations. We form catalogs of numerical relativity waveforms with distinct physical effects and compute the relative probability that a gravitational wave signal belongs to each catalog. We introduce an algorithm designed to perform this task for coalescence signals using principal component analysis of waveform catalogs and Bayesian model selection and demonstrate its effectiveness.

James Clark; Laura Cadonati; James Healy; Ik Siong Heng; Josh Logue; Nicholas Mangini; Lionel London; Larne Pekowsky; Deirdre Shoemaker

2014-06-20T23:59:59.000Z

195

Thresholding Multivariate Regression and Generalized Principal Components  

E-Print Network [OSTI]

the high-dimensional data matrices have been extensively researched for uncorrelated and independent situations, they are much less so for the transposable data matrices. A generalization of principal component analysis and the related weighted least...

Sun, Ranye

2014-03-17T23:59:59.000Z

196

Recent Site-Wide Transport Modeling Related to the Carbon Tetrachloride Plume at the Hanford Site  

SciTech Connect (OSTI)

Carbon tetrachloride transport in the unconfined aquifer system at the Hanford Site has been the subject of follow-on studies since the Carbon Tetrachloride Innovative Treatment Remediation Demonstration (ITRD) Program was completed in FY 2002. These scoping analyses were undertaken to provide support for strategic planning and guidance for the more robust modeling needed to obtain a final record of decision (ROD) for the carbon tetrachloride plume in the 200 West Area. This report documents the technical approach and the results of these follow-on, site-wide scale-modeling efforts. The existing site-wide groundwater model was used in this effort. The work extended that performed as part of the ITRD modeling study in which a 200 West Area scale submodel was developed to examine arrival concentrations at an arbitrary boundary between the 200 E and 200 W areas. These scoping analyses extended the analysis to predict the arrival of the carbon tetrachloride plume at the Columbia River. The results of these analyses illustrate the importance of developing field-scale estimates of natural attenuation parameters, abiotic degradation rate and soil/water equilibrium sorption coefficient, for carbon tetrachloride. With these parameters set to zero, carbon tetrachloride concentrations will exceed the compliance limit of 5 ?g/L outside the 200 Area Plateau Waste Management Area, and the aquifer source loading and area of the aquifer affected will continue to grow until arrival rates of carbon tetrachloride equal source release rates, estimated at 33 kg/yr. Results of this scoping analysis show that the natural attenuation parameters are critical in predicting the future movement of carbon tetrachloride from the 200 West Area. Results also show the significant change in predictions between continual source release from the vadose zone and complete source removal.

Bergeron, Marcel P.; Cole, C R.

2005-11-01T23:59:59.000Z

197

Enabling Technologies for Ceramic Hot Section Components  

SciTech Connect (OSTI)

Silicon-based ceramics are attractive materials for use in gas turbine engine hot sections due to their high temperature mechanical and physical properties as well as lower density than metals. The advantages of utilizing ceramic hot section components include weight reduction, and improved efficiency as well as enhanced power output and lower emissions as a result of reducing or eliminating cooling. Potential gas turbine ceramic components for industrial, commercial and/or military high temperature turbine applications include combustor liners, vanes, rotors, and shrouds. These components require materials that can withstand high temperatures and pressures for long duration under steam-rich environments. For Navy applications, ceramic hot section components have the potential to increase the operation range. The amount of weight reduced by utilizing a lighter gas turbine can be used to increase fuel storage capacity while a more efficient gas turbine consumes less fuel. Both improvements enable a longer operation range for Navy ships and aircraft. Ceramic hot section components will also be beneficial to the Navy's Growth Joint Strike Fighter (JSF) and VAATE (Versatile Affordable Advanced Turbine Engines) initiatives in terms of reduced weight, cooling air savings, and capability/cost index (CCI). For DOE applications, ceramic hot section components provide an avenue to achieve low emissions while improving efficiency. Combustors made of ceramic material can withstand higher wall temperatures and require less cooling air. Ability of the ceramics to withstand high temperatures enables novel combustor designs that have reduced NO{sub x}, smoke and CO levels. In the turbine section, ceramic vanes and blades do not require sophisticated cooling schemes currently used for metal components. The saved cooling air could be used to further improve efficiency and power output. The objectives of this contract were to develop technologies critical for ceramic hot section components for gas turbine engines. Significant technical progress has been made towards maturation of the EBC and CMC technologies for incorporation into gas turbine engine hot-section. Promising EBC candidates for longer life and/or higher temperature applications relative to current state of the art BSAS-based EBCs have been identified. These next generation coating systems have been scaled-up from coupons to components and are currently being field tested in Solar Centaur 50S engine. CMC combustor liners were designed, fabricated and tested in a FT8 sector rig to demonstrate the benefits of a high temperature material system. Pretest predictions made through the use of perfectly stirred reactor models showed a 2-3x benefit in CO emissions for CMC versus metallic liners. The sector-rig test validated the pretest predictions with >2x benefit in CO at the same NOx levels at various load conditions. The CMC liners also survived several trip shut downs thereby validating the CMC design methodology. Significant technical progress has been made towards incorporation of ceramic matrix composites (CMC) and environmental barrier coatings (EBC) technologies into gas turbine engine hot-section. The second phase of the program focused on the demonstration of a reverse flow annular CMC combustor. This has included overcoming the challenges of design and fabrication of CMCs into 'complex' shapes; developing processing to apply EBCs to 'engine hardware'; testing of an advanced combustor enabled by CMCs in a PW206 rig; and the validation of performance benefits against a metal baseline. The rig test validated many of the pretest predictions with a 40-50% reduction in pattern factor compared to the baseline and reductions in NOx levels at maximum power conditions. The next steps are to develop an understanding of the life limiting mechanisms in EBC and CMC materials, developing a design system for EBC coated CMCs and durability testing in an engine environment.

Venkat Vedula; Tania Bhatia

2009-04-30T23:59:59.000Z

198

Surface Tension of Binary Mixtures Including Polar Components Modeled by the Density Gradient Theory Combined with the PC-SAFT Equation of State  

Science Journals Connector (OSTI)

In this study, the Cahn–Hilliard density gradient theory (GT) is used for predicting the surface tension of various binary mixtures at relatively wide temperature ranges and for testing the application of the GT ...

Václav Vinš; Barbora Planková; Jan Hrubę

2013-05-01T23:59:59.000Z

199

Critical exponents of the 3d Ising and related models from Conformal Bootstrap  

E-Print Network [OSTI]

The constraints of conformal bootstrap are applied to investigate a set of conformal field theories in various dimensions. The prescriptions can be applied to both unitary and non unitary theories allowing for the study of the spectrum of low-lying primary operators of the theory. We evaluate the lowest scaling dimensions of the local operators associated with the Yang-Lee edge singularity for $2 \\le D \\le 6$. Likewise we obtain the scaling dimensions of six scalars and four spinning operators for the 3d critical Ising model. Our findings are in agreement with existing results to a per mill precision and estimate several new exponents.

Gliozzi, Ferdinando

2014-01-01T23:59:59.000Z

200

LMFBR fuel component costs  

SciTech Connect (OSTI)

A significant portion of the cost of fabricating LMFBR fuels is in the non-fuel components such as fuel pin cladding, fuel assembly ducts and end fittings. The contribution of these to fuel fabrication costs, based on FFTF experience and extrapolated to large LMFBR fuel loadings, is discussed. The extrapolation considers the expected effects of LMFBR development programs in progress on non-fuel component costs.

Epperson, E.M.; Borisch, R.R.; Rice, L.H.

1981-10-29T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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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201

The Dynamical Core, Physical Parameterizations, and Basic Simulation Characteristics of the Atmospheric Component AM3 of the GFDL Global Coupled Model CM3  

Science Journals Connector (OSTI)

The Geophysical Fluid Dynamics Laboratory (GFDL) has developed a coupled general circulation model (CM3) for the atmosphere, oceans, land, and sea ice. The goal of CM3 is to address emerging issues in climate change, including aerosol–cloud ...

Leo J. Donner; Bruce L. Wyman; Richard S. Hemler; Larry W. Horowitz; Yi Ming; Ming Zhao; Jean-Christophe Golaz; Paul Ginoux; S.-J. Lin; M. Daniel Schwarzkopf; John Austin; Ghassan Alaka; William F. Cooke; Thomas L. Delworth; Stuart M. Freidenreich; C. T. Gordon; Stephen M. Griffies; Isaac M. Held; William J. Hurlin; Stephen A. Klein; Thomas R. Knutson; Amy R. Langenhorst; Hyun-Chul Lee; Yanluan Lin; Brian I. Magi; Sergey L. Malyshev; P. C. D. Milly; Vaishali Naik; Mary J. Nath; Robert Pincus; Jeffrey J. Ploshay; V. Ramaswamy; Charles J. Seman; Elena Shevliakova; Joseph J. Sirutis; William F. Stern; Ronald J. Stouffer; R. John Wilson; Michael Winton; Andrew T. Wittenberg; Fanrong Zeng

2011-07-01T23:59:59.000Z

202

Chapter Eight - Intrinsically Disordered Proteins—Relation to General Model Expressing the Active Role of the Water Environment  

Science Journals Connector (OSTI)

Abstract This work discusses the role of unstructured polypeptide chain fragments in shaping the protein's hydrophobic core. Based on the “fuzzy oil drop” model, which assumes an idealized distribution of hydrophobicity density described by the 3D Gaussian, we can determine which fragments make up the core and pinpoint residues whose location conflicts with theoretical predictions. We show that the structural influence of the water environment determines the positions of disordered fragments, leading to the formation of a hydrophobic core overlaid by a hydrophilic mantle. This phenomenon is further described by studying selected proteins which are known to be unstable and contain intrinsically disordered fragments. Their properties are established quantitatively, explaining the causative relation between the protein's structure and function and facilitating further comparative analyses of various structural models.

Barbara Kalinowska; Mateusz Banach; Leszek Konieczny; Damian Marchewka; Irena Roterman

2014-01-01T23:59:59.000Z

203

The Non-Autonomous Chiral Model and the Ernst Equation of General Relativity in the Bidifferential Calculus Framework  

E-Print Network [OSTI]

The non-autonomous chiral model equation for an $m \\times m$ matrix function on a two-dimensional space appears in particular in general relativity, where for $m=2$ a certain reduction of it determines stationary, axially symmetric solutions of Einstein's vacuum equations, and for $m=3$ solutions of the Einstein-Maxwell equations. Using a very simple and general result of the bidifferential calculus approach to integrable partial differential and difference equations, we generate a large class of exact solutions of this chiral model. The solutions are parametrized by a set of matrices, the size of which can be arbitrarily large. The matrices are subject to a Sylvester equation that has to be solved and generically admits a unique solution. By imposing the aforementioned reductions on the matrix data, we recover the Ernst potentials of multi-Kerr-NUT and multi-Demianski-Newman metrics.

Aristophanes Dimakis; Nils Kanning; Folkert Müller-Hoissen

2011-12-23T23:59:59.000Z

204

Modeling Ethanol Decomposition on Transition Metals: A Combined Application of Scaling and Brűnsted-Evans-Polanyi Relations  

SciTech Connect (OSTI)

Applying density functional theory (DFT) calculations to the rational design of catalysts for complex reaction networks has been an ongoing challenge, primarily because of the high computational cost of these calculations. Certain correlations can be used to reduce the number and complexity of DFT calculations necessary to describe trends in activity and selectivity across metal and alloy surfaces, thus extending the reach of DFT to more complex systems. In this work, the well-known family of Brűnsted-Evans-Polanyi (BEP) correlations, connecting minima with maxima in the potential energy surface of elementary steps, in tandem with a scaling relation, connecting binding energies of complex adsorbates with those of simpler ones (e.g., C, O), is used to develop a potential-energy surface for ethanol decomposition on 10 transition metal surfaces. Using a simple kinetic model, the selectivity and activity on a subset of these surfaces are calculated. Experiments on supported catalysts verify that this simple model is reasonably accurate in describing reactivity trends across metals, suggesting that the combination of BEP and scaling relations may substantially reduce the cost of DFT calculations required for identifying reactivity descriptors of more complex reactions.

Ferrin, Peter A.; Simonetti, Dante A.; Kandoi, Shampa; Kunkes, Edward L.; Dumesic, James A.; Norskov, Jens K.; Mavrikakis, Manos

2009-04-29T23:59:59.000Z

205

Fusion-component lifetime analysis  

SciTech Connect (OSTI)

A one-dimensional computer code has been developed to examine the lifetime of first-wall and impurity-control components. The code incorporates the operating and design parameters, the material characteristics, and the appropriate failure criteria for the individual components. The major emphasis of the modeling effort has been to calculate the temperature-stress-strain-radiation effects history of a component so that the synergystic effects between sputtering erosion, swelling, creep, fatigue, and crack growth can be examined. The general forms of the property equations are the same for all materials in order to provide the greatest flexibility for materials selection in the code. The individual coefficients within the equations are different for each material. The code is capable of determining the behavior of a plate, composed of either a single or dual material structure, that is either totally constrained or constrained from bending but not from expansion. The code has been utilized to analyze the first walls for FED/INTOR and DEMO and to analyze the limiter for FED/INTOR.

Mattas, R.F.

1982-09-01T23:59:59.000Z

206

LBNL Windows & Daylighting Software -- THERM Components  

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

Components Components THERM has three basic components: Graphic User Interface: a graphic user interface that allows you to draw a cross section of the product or component for which you are performing thermal calculations. Heat Transfer Analysis: a heat-transfer analysis component that includes: an automatic mesh generator to create the elements for the finite-element analysis, a finite-element solver, an optional error estimator and adaptive mesh generator, and an optional view-factor radiation model. Results: a results displayer. Graphic User Interface THERM has standard graphic capabilities associated with the Microsoft Windows™ operating system. For example, THERM allows you to use: Both mouse and cursor operations; Standard editing features, such as Cut, Copy, Paste, Select All, and Delete;

207

Correct Execution of Reconfiguration for Stateful Components  

Science Journals Connector (OSTI)

In component-based software engineering, reconfiguration describes structural changes to the architecture of a component system. For stateful components, not only structural but also behavioural aspects have to be taken into account in reconfiguration. We present a procedure to conduct reconfiguration in systems of concurrent, stateful components that interferes as little as possible with unchanged subsystems. Reconfiguration is described by a plan for adding, deleting and reconnecting components. A plan is executed by a sequence of simple, local steps, which are suitable for implementation in a programming language. We prove that plan execution is indistinguishable from atomic reconfiguration and use this fact for state-space reduction for verifying properties by model checking.

Moritz Hammer; Alexander Knapp

2010-01-01T23:59:59.000Z

208

BNL CRCR LEAF Components  

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

A detailed description of the LEAF facility is given in Rev. Sci. Inst. 75, A detailed description of the LEAF facility is given in Rev. Sci. Inst. 75, 4359-4366 (2004), which can be found by following this link. Accelerator System Components The LEAF facility layout indicates the locations of the laser system, the RF components, the electron gun and the beam lines. RF System The modulator cabinet and S-band (2.856 GHz) klystron are located in the laser room. A copper waveguide carries the 15 MW RF pulse from the klystron to the electron gun in the accelerator vault. (A klystron is a high-power RF amplifier. You can visit the ALS MicroWorlds site for more information on klystrons and the principles of RF particle acceleration.) Electron Gun Accelerator and Beam Line 5 psec beam line The electron gun (link to picture) is located in the southwest corner of

209

ARM - Evaluation Product - Organic Aerosol Component VAP  

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

ProductsOrganic Aerosol Component VAP ProductsOrganic Aerosol Component VAP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Organic Aerosol Component VAP 2011.01.08 - 2012.03.24 Site(s) SGP General Description Organic aerosol (OA, i.e., the organic fraction of particles) accounts for 10-90% of the fine aerosol mass globally and is a key determinant of aerosol radiative forcing. But atmospheric OA is poorly characterized and its life cycle insufficiently represented in models. As a result, current models are unable to simulate OA concentrations and properties. This deficiency represents a large source of uncertainty in the quantification of aerosol direct and indirect effects and the prediction of future climate change. The Organic Aerosol Component (OACOMP) value-added product (VAP) uses

210

Injection molded component  

DOE Patents [OSTI]

An intermediate component includes a first wall member, a leachable material layer, and a precursor wall member. The first wall member has an outer surface and first connecting structure. The leachable material layer is provided on the first wall member outer surface. The precursor wall member is formed adjacent to the leachable material layer from a metal powder mixed with a binder material, and includes second connecting structure.

James, Allister W; Arrell, Douglas J

2014-09-30T23:59:59.000Z

211

Heart of Darkness: dust obscuration of the central stellar component in globular clusters younger than ~100Myr in multiple stellar population models  

E-Print Network [OSTI]

To explain the observed anomalies in stellar populations within globular clusters, many globular cluster formation theories require two independent episodes of star formation. A fundamental prediction of these models is that the clusters must accumulate large gas reservoirs as the raw material to form the second stellar generation. We show that young clusters containing the required gas reservoir should exhibit the following observational signatures: (i) a dip in the measured luminosity profile or an increase in measured reddening towards the cluster centre, with Av >10mag within a radius of a few pc; (ii) bright (sub)mm emission from dust grains; (iii) bright molecular line emission once the gas is dense enough to begin forming stars. Unless the IMF is anomalously skewed towards low-mass stars, the clusters should also show obvious signs of star formation via optical emission lines (e.g. H_alpha) after the stars have formed. These observational signatures should be readily observable towards any compact clus...

Longmore, Steven N

2015-01-01T23:59:59.000Z

212

I&C Modeling in SPAR Models  

SciTech Connect (OSTI)

The Standardized Plant Analysis Risk (SPAR) models for the U.S. commercial nuclear power plants currently have very limited instrumentation and control (I&C) modeling [1]. Most of the I&C components in the operating plant SPAR models are related to the reactor protection system. This was identified as a finding during the industry peer review of SPAR models. While the Emergency Safeguard Features (ESF) actuation and control system was incorporated into the Peach Bottom Unit 2 SPAR model in a recent effort [2], various approaches to expend resources for detailed I&C modeling in other SPAR models are investigated.

John A. Schroeder

2012-06-01T23:59:59.000Z

213

A structural model of anti-anti-[sigma];#963; inhibition by a two-component receiver domain: the PhyR stress response regulator  

SciTech Connect (OSTI)

PhyR is a hybrid stress regulator conserved in {alpha}-proteobacteria that contains an N-terminal {sigma}-like (SL) domain and a C-terminal receiver domain. Phosphorylation of the receiver domain is known to promote binding of the SL domain to an anti-{sigma} factor. PhyR thus functions as an anti-anti-{sigma} factor in its phosphorylated state. We present genetic evidence that Caulobacter crescentus PhyR is a phosphorylation-dependent stress regulator that functions in the same pathway as {sigma}{sup T} and its anti-{sigma} factor, NepR. Additionally, we report the X-ray crystal structure of PhyR at 1.25 {angstrom} resolution, which provides insight into the mechanism of anti-anti-{sigma} regulation. Direct intramolecular contact between the PhyR receiver and SL domains spans regions {sigma}{sub 2} and {sigma}{sub 4}, likely serving to stabilize the SL domain in a closed conformation. The molecular surface of the receiver domain contacting the SL domain is the structural equivalent of {alpha}4-{beta}5-{alpha}5, which is known to undergo dynamic conformational change upon phosphorylation in a diverse range of receiver proteins. We propose a structural model of PhyR regulation in which receiver phosphorylation destabilizes the intramolecular interaction between SL and receiver domains, thereby permitting regions {sigma}{sub 2} and {sigma}{sub 4} in the SL domain to open about a flexible connector loop and bind anti-{sigma} factor.

Herrou, Julien; Foreman, Robert; Fiebig, Aretha; Crosson, Sean (UC)

2012-03-30T23:59:59.000Z

214

A structural model of anti-anti-[sigma] inhibition by a two-component receiver domain: the PhyR stress response regulator  

SciTech Connect (OSTI)

PhyR is a hybrid stress regulator conserved in {alpha}-proteobacteria that contains an N-terminal {sigma}-like (SL) domain and a C-terminal receiver domain. Phosphorylation of the receiver domain is known to promote binding of the SL domain to an anti-{sigma} factor. PhyR thus functions as an anti-anti-{sigma} factor in its phosphorylated state. We present genetic evidence that Caulobacter crescentus PhyR is a phosphorylation-dependent stress regulator that functions in the same pathway as {sigma}{sup T} and its anti-{sigma} factor, NepR. Additionally, we report the X-ray crystal structure of PhyR at 1.25 {angstrom} resolution, which provides insight into the mechanism of anti-anti-{sigma} regulation. Direct intramolecular contact between the PhyR receiver and SL domains spans regions {sigma}{sub 2} and {sigma}{sub 4}, likely serving to stabilize the SL domain in a closed conformation. The molecular surface of the receiver domain contacting the SL domain is the structural equivalent of {alpha}4-{beta}5-{alpha}5, which is known to undergo dynamic conformational change upon phosphorylation in a diverse range of receiver proteins. We propose a structural model of PhyR regulation in which receiver phosphorylation destabilizes the intramolecular interaction between SL and receiver domains, thereby permitting regions {sigma}{sub 2} and {sigma}{sub 4} in the SL domain to open about a flexible connector loop and bind anti-{sigma} factor.

Herrou, Julien; Foreman, Robert; Fiebig, Aretha; Crosson, Sean (UC)

2012-05-09T23:59:59.000Z

215

GRB 060218: The nature of the optical-UV component  

E-Print Network [OSTI]

The optical-UV component in GRB 060218 is assumed to be due to optically thick cyclotron emission. The key aspect of this model is the high temperature of the absorbing electrons. The heat input derives from nuclei accelerated in semi-relativistic internal shocks, like in ordinary gamma-ray bursts. Coulomb collisions transfer part of that energy to electrons. Inverse Compton cooling on the X-ray photons leads to electron temperatures around 100 keV. Such a high brightness temperature for the optical-UV emission implies an emitting area roughly equal to that of the thermal X-ray component. This suggests a model in which the radio, optical-UV and thermal X-ray emission are closely related: Although the optical-UV and thermal X-ray emission are two separate spectral components, it is argued that they both come from the photosphere of a quasi-spherical, continuous outflow, whose interaction with the circumstellar medium gives rise to the radio emission. The properties of GRB 060218, as measured in the co-moving f...

Björnsson, C I

2007-01-01T23:59:59.000Z

216

GRB 060218: The nature of the optical-UV component  

E-Print Network [OSTI]

The optical-UV component in GRB 060218 is assumed to be due to optically thick cyclotron emission. The key aspect of this model is the high temperature of the absorbing electrons. The heat input derives from nuclei accelerated in semi-relativistic internal shocks, like in ordinary gamma-ray bursts. Coulomb collisions transfer part of that energy to electrons. Inverse Compton cooling on the X-ray photons leads to electron temperatures around 100 keV. Such a high brightness temperature for the optical-UV emission implies an emitting area roughly equal to that of the thermal X-ray component. This suggests a model in which the radio, optical-UV and thermal X-ray emission are closely related: Although the optical-UV and thermal X-ray emission are two separate spectral components, it is argued that they both come from the photosphere of a quasi-spherical, continuous outflow, whose interaction with the circumstellar medium gives rise to the radio emission. The properties of GRB 060218, as measured in the co-moving frame, are similar to those of ordinary gamma-ray burst; i.e., the main difference is the much lower value of the bulk Lorentz factor in GRB 060218. The cyclotron absorption implies a magnetic field in rough equipartition with the matter energy density in the outflow. Hence, the magnetic field could have a dynamically important role, possibly with a magnetar as the central engine.

C. -I. Björnsson

2007-09-12T23:59:59.000Z

217

Component failure data handbook  

SciTech Connect (OSTI)

This report presents generic component failure rates that are used in reliability and risk studies of commercial nuclear power plants. The rates are computed using plant-specific data from published probabilistic risk assessments supplemented by selected other sources. Each data source is described. For rates with four or more separate estimates among the sources, plots show the data that are combined. The method for combining data from different sources is presented. The resulting aggregated rates are listed with upper bounds that reflect the variability observed in each rate across the nuclear power plant industry. Thus, the rates are generic. Both per hour and per demand rates are included. They may be used for screening in risk assessments or for forming distributions to be updated with plant-specific data.

Gentillon, C.D.

1991-04-01T23:59:59.000Z

218

Sprayed skin turbine component  

DOE Patents [OSTI]

Fabricating a turbine component (50) by casting a core structure (30), forming an array of pits (24) in an outer surface (32) of the core structure, depositing a transient liquid phase (TLP) material (40) on the outer surface of the core structure, the TLP containing a melting-point depressant, depositing a skin (42) on the outer surface of the core structure over the TLP material, and heating the assembly, thus forming both a diffusion bond and a mechanical interlock between the skin and the core structure. The heating diffuses the melting-point depressant away from the interface. Subsurface cooling channels (35) may be formed by forming grooves (34) in the outer surface of the core structure, filling the grooves with a fugitive filler (36), depositing and bonding the skin (42), then removing the fugitive material.

Allen, David B

2013-06-04T23:59:59.000Z

219

Precision Cleaning Titanium Components  

SciTech Connect (OSTI)

Clean bond surfaces are critical to the operation of diffusion bonded titanium engine components. These components can be contaminated with machining coolant, shop dirt, and fingerprints during normal processing and handling. These contaminants must be removed to achieve acceptable bond quality. As environmental concerns become more important in manufacturing, elimination of the use of hazardous materials is desired. For this reason, another process (not using nitric-hydrofluoric acid solution) to clean titanium parts before bonding was sought. Initial cleaning trials were conducted at Honeywell to screen potential cleaning techniques and chemistries. During the initial cleaning process screening phase, Pratt and Whitney provided Honeywell with machined 3 inch x 3 inch x 1 inch titanium test blocks. These test blocks were machined with a water-based machining coolant and exposed to a normal shop environment and handling. (Honeywell sectioned one of these blocks into smaller samples to be used for additional cleanliness verification analyses.) The sample test blocks were ultrasonically cleaned in alkaline solutions and AUGER analysis was used by Honeywell FM and T to validate their cleanliness. This information enabled selection of final cleaning techniques and solutions to be used for the bonding trials. To validate Honeywell's AUGER data and to verify the cleaning processes in actual situations, additional sample blocks were cleaned (using the chosen processes) and then bonded. The bond quality of the test blocks was analyzed according to Pratt and Whitney's requirements. The Charpy impact testing was performed according to ASTM procedure {number_sign}E-23. Bond quality was determined by examining metallographic samples of the bonded test blocks for porosity along the bondline.

Hand, T.E.; Bohnert, G.W.

2000-02-02T23:59:59.000Z

220

Systems and Components Development Expertise [Nuclear Waste Management  

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

Systems and Components Systems and Components Development Expertise Nuclear Fuel Cycle and Waste Management Technologies Overview Modeling and analysis Unit Process Modeling Mass Tracking System Software Waste Form Performance Modeling Safety Analysis, Hazard and Risk Evaluations Development, Design, Operation Overview Systems and Components Development Expertise System Engineering Design Other Major Programs Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE Division on Flickr Nuclear Waste Management using Electrometallurgical Technology Systems and Components Development Expertise Bookmark and Share Electrorefiner The electrorefiner: an apparatus used for electrometallurgical treatment of spent nuclear fuel to facilitate storage and ultimate disposal. Click on

Note: This page contains sample records for the topic "related model components" 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

Ore mineralization related to geological evolution of the Karkonosze–Izera Massif (the Sudetes, Poland) — Towards a model  

Science Journals Connector (OSTI)

Abstract The Karkonosze–Izera Massif is a large tectonic unit located in the northern periphery of the Bohemian Massif. It includes the Variscan Karkonosze Granite (about 328–304 Ma) surrounded by the following four older units:- Izera–Kowary (the Early Paleozoic continental crust of the Saxothuringian Basin), - Ješt?d (the Middle Devonian to Lower Viséan sedimentary succession deposited on the NE passive margin of the Saxothuringian Terrane), out of the present study area, - Southern Karkonosze (metamorphosed sediments and volcanics filling the Saxothuringian Basin), out of the present study area, - Leszczyniec (Early Ordovician, obducted fragment of Saxothuringian Basin sea floor). The authors present a genetic model of ore mineralization in the Karkonosze–Izera Massif, in which ore deposits and ore minerals occurrences are related to the successive episodes of the geological history of the Karkonosze–Izera Massif:- formation of the Saxothuringian Basin and its passive continental margin (about 500–490 Ma) - Variscan thermal events:- regional metamorphism (360–340 Ma) - Karkonosze Granite intrusion (328–304 Ma) - Late Cretaceous and Neogene-to-Recent hypergenic processes. The oldest ore deposits and ore minerals occurrences of the Karkonosze–Izera Massif are represented by pyrite and magnetite deposits hosted in the Leszczyniec Unit as well as by magnetite deposit and, presumably, by a small part of tin mineralization hosted in the Izera–Kowary Unit. All these deposits and occurrences were subjected to the pre-Variscan regional metamorphism. Most of the Karkonosze–Izera Massif ore deposits and occurrences are related to the Karkonosze Granite intrusion. This group includes a spatially diversified assemblage of small ore deposits and ore mineral occurrences of: Fe, Cu, Sn, As, U, Co, Au, Ag, Pb, Ni, Bi, Zn, Sb, Se, S, Th, REE, Mo, W and Hg located within the granite and in granite-related pegmatites, in the close contact aureole of the granite and within the metamorphic envelope, at various distances from the granite. Assuming world standards, all these deposits are now uneconomic. Various age determinations indicated that ore formation connected with the Karkonosze Granite might have taken place mostly between about 326 and 270 Ma. The last ore-forming episode in the Karkonosze–Izera Massif is related to hypergenic processes, particularly important in the northern part of the massif, in the Izera–Kowary Unit where some uranium deposits and occurrences resulted from the infiltration of ore solutions that originated from the weathering of pre-existing accumulations of uranium minerals. A separate problem is the presence of oxidation zones of ore deposits and occurrences, both the fossil and the recent. A full list of ore minerals identified in described deposits and occurrences of the Karkonosze–Izera Massif together with relevant, key references is presented in the form of an appendix.

Ksenia Mochnacka; Teresa Oberc-Dziedzic; Wojciech Mayer; Adam Pieczka

2015-01-01T23:59:59.000Z

222

Application of an enthalpy balance model of the relation between growth and respiration to temperature acclimation of Eucalyptus globulus seedlings  

Science Journals Connector (OSTI)

...related to carbon conversion efficiency and...together with biomass composition...related to carbon conversion ef ciency and...together with biomass composition...producing new biomass. YG is similar to carbon conversion ef ciency except...

2002-01-01T23:59:59.000Z

223

Can we discover dual-component thermal WIMP dark matter?  

SciTech Connect (OSTI)

We address the question of whether the upcoming generation of dark matter search experiments and colliders will be able to discover if the dark matter in the Universe has two components of weakly interacting massive particles (WIMPs). We outline a model-independent approach, and we study the specific cases of (1) direct detection with low-background 1 ton noble-gas detectors and (2) a 0.5 TeV center of mass energy electron-positron linear collider. We also analyze the case of indirect detection via two gamma-ray lines, which would provide a verification of such a discovery, although multiple gamma-ray lines can in principle originate from the annihilation of a single dark matter particle. For each search ''channel'', we outline a few assumptions to relate the very small set of parameters we consider (defining the masses of the two WIMPs and their relative abundance in the overall dark matter density) with the relevant detection rates. We then draw general conclusions on which corners of a generic dual-component dark matter scenario can be explored with current and next generation experiments. We find that in all channels the ideal setup is one where the relative mass splitting between the two WIMP species is of order 1, and where the two dark matter components contribute in a ratio close to 1:1 to the overall dark matter content of the Universe. Interestingly, in the case of direct detection, future experiments might detect multiple states even if only ? 10% of the energy-density of dark matter in the Universe is in the subdominant species.

Profumo, Stefano; Ubaldi, Lorenzo [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz CA 95064 (United States); Sigurdson, Kris, E-mail: profumo@scipp.ucsc.edu, E-mail: krs@physics.ubc.ca, E-mail: ubaldi@physics.ucsc.edu [Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada)

2009-12-01T23:59:59.000Z

224

Mobile-component housing and solar energy: the possibilities  

SciTech Connect (OSTI)

The possibilities for acceptance of PV among different modes of housing construction are considered. The focus is on that form of housing production defined as mobile-component housing, a type of housing built in a factory to a single national construction standard. The first section describes the structure of the manufactured housing industry. It provides definitions and terminology necessary to a discussion of mobile-component housing. It then reviews the production activity and approach, distribution, consumer and financing for this mode of housing. The second section presents the product characteristics of mobile-component housing. The third section reviews solar technologies, and discusses their relation to mobile-component housing. The fourth section focuses specifically on factors influencing receptivity to solar by the mobile-component housing industry. The conclusion summarizes the analysis as it relates to the possibilities for photovoltaics in mobile-component housing.

Nutt-Powell, T.E.; Furlong, M.

1980-04-01T23:59:59.000Z

225

Molecular Components of Catalytic Selectivity  

SciTech Connect (OSTI)

Selectivity, that is, to produce one molecule out of many other thermodynamically feasible product molecules, is the key concept to develop 'clean manufacturing' processes that do not produce byproducts (green chemistry). Small differences in potential energy barriers for elementary reaction steps control which reaction channel is more likely to yield the desired product molecule (selectivity), instead of the overall activation energy for the reaction that controls turnover rates (activity). Recent studies have demonstrated the atomic- or molecular-level tailoring of parameters such as the surface structures of active sites that give rise to nanoparticle size and shape dependence of turnover rates and reaction selectivities. Here, we highlight seven molecular components that influence reaction selectivities. These include: surface structure, adsorbate-induced restructuring, adsorbate mobility, reaction intermediates, surface composition, charge transport, and oxidation states for model metal single crystal and colloid nanoparticle catalysts. We show examples of their functioning and describe in-situ instruments that permit us to investigate their roles in surface reactions.

Somorjai, Gabor A.; Park, Jeong Y.

2008-07-02T23:59:59.000Z

226

Components of Swarm Intelligence  

SciTech Connect (OSTI)

This paper discusses the successes and failures over the past three years as efforts at the Idaho National Engineering and Environmental Laboratory (INEEL) have developed and evaluated robot behaviors that promote the emergence of swarm intelligence. Using a team of 12 small robots with the ability to respond to light and sound, the INEEL has investigated the fundamental advantages of swarm behavior as well as the limitations of this approach. The paper discusses the ways in which biology has inspired this work and the ways in which adherence to the biological model has proven to be both a benefit and hindrance to developing a fieldable system. The paper outlines how a hierarchical command and control structure can be imposed in order to permit human control at a level of group abstraction and discusses experimental results that show how group performance scales as different numbers of robots are utilized. Lastly, the paper outlines the applications for which the resulting capabilities have been applied and demonstrated.

David Bruemmer; Donald Dudenhoeffer; Matthew Anderson; Mark McKay

2004-03-01T23:59:59.000Z

227

Performance Engineering Technology for Scientific Component Software  

SciTech Connect (OSTI)

Large-scale, complex scientific applications are beginning to benefit from the use of component software design methodology and technology for software development. Integral to the success of component-based applications is the ability to achieve high-performing code solutions through the use of performance engineering tools for both intra-component and inter-component analysis and optimization. Our work on this project aimed to develop performance engineering technology for scientific component software in association with the DOE CCTTSS SciDAC project (active during the contract period) and the broader Common Component Architecture (CCA) community. Our specific implementation objectives were to extend the TAU performance system and Program Database Toolkit (PDT) to support performance instrumentation, measurement, and analysis of CCA components and frameworks, and to develop performance measurement and monitoring infrastructure that could be integrated in CCA applications. These objectives have been met in the completion of all project milestones and in the transfer of the technology into the continuing CCA activities as part of the DOE TASCS SciDAC2 effort. In addition to these achievements, over the past three years, we have been an active member of the CCA Forum, attending all meetings and serving in several working groups, such as the CCA Toolkit working group, the CQoS working group, and the Tutorial working group. We have contributed significantly to CCA tutorials since SC'04, hosted two CCA meetings, participated in the annual ACTS workshops, and were co-authors on the recent CCA journal paper [24]. There are four main areas where our project has delivered results: component performance instrumentation and measurement, component performance modeling and optimization, performance database and data mining, and online performance monitoring. This final report outlines the achievements in these areas for the entire project period. The submitted progress reports for the first two years describe those year's achievements in detail. We discuss progress in the last project period in this document. Deployment of our work in CCA components, frameworks, and applications is an important metric of success. We also summarize the project's accomplishments in this regard at the end of the report. A list of project publications is also given.

Malony, Allen D.

2007-05-08T23:59:59.000Z

228

Models and Characterization of Piezoelectric Ceramics  

SciTech Connect (OSTI)

Selected literature on the use of linearized constitutive equations and complex piezoelectric coefficients to develop models and characterize materials is presented in brief. One-dimensional models of simple piezoelectric ceramic components are derived using linearized constitutive equations and other fundamental relations to illustrate the procedure used to develop multi-dimensional models. Then, the procedure for building models of multi-layer devices using models of components is illustrated. Models are also used to characterize materials. A method to determine the errors when the ANSI/IEEE Standard method is used to determine real piezoelectric coefficients and methods to characterize non-Standard shapes often used in devices are also presented.

Ebenezer, D. D. [Naval Physical and Oceanographic Laboratory Kochi 682021 (India)

2008-07-29T23:59:59.000Z

229

Step 5. Determine Crucial Components of the Energy Code: Scope and  

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

5. Determine Crucial Components of the Energy Code: Scope and 5. Determine Crucial Components of the Energy Code: Scope and Applicability, Format, Adoption Date, and Effective Date Description There are four crucial components that must be considered during the adoption process: scope and applicability, format, adoption date and effective date. The scope of a code dictates which requirements will be covered by the code while the format relates to the manner in which code requirements are presented. Based on the energy goals of a state or jurisdiction, the scope and format of a code will greatly influence which code is selected for adoption and the adoption process used. For example, if a jurisdiction wishes to include only the HVAC system in its local code, a national model code may be amended to reflect these changes or a locally

230

The crystal structure of the conserved \\{GTPase\\} of SRP54 from the archaeon Acidianus ambivalens and its comparison with related structures suggests a model for the SRP–SRP receptor complex  

Science Journals Connector (OSTI)

Background: Protein targeting to the endoplasmic reticulum in eukaryotes and to the cell membrane in prokaryotes is mediated by the signal recognition particle (SRP) and its receptor (SR). Both contain conserved \\{GTPase\\} domains in the signal-peptide-binding proteins (SRP54 and Ffh) and the SR proteins (SR? and FtsY). These \\{GTPases\\} are involved in the regulation of protein targeting. Most studies so far have focussed on the SRP machinery of mammals and bacteria, leaving the SRP system of archaea less well understood. Results: We report the crystal structure of the conserved \\{GTPase\\} (NG-Ffh) from the thermophilic archaeon Acidianus ambivalens at 2.0 Ć resolution and of the Thr112?Ala mutant, which is inactive in GTP hydrolysis. This is the first structure of an SRP component from an archaeon and allows for a detailed comparison with related structures from Escherichia coli and thermophilic bacteria. In particular, differences in the conserved consensus regions for nucleotide binding and the subdomain interfaces are observed, which provide information about the regulation of the GTPase. These interactions allow us to propose a common signalling mechanism for the SRP–SR system. Conclusions: The overall structure of SRP-GTPases is well conserved between bacteria and archaea, which indicates strong similarities in the regulation of the SRP-targeting pathway. Surprisingly, structure comparisons identified a homodimeric ATP-binding protein as the closest relative. A heterodimer model for the SRP–SR interaction is presented.

Guillermo Montoya; Kai te Kaat; Ralph Moll; Günter Schäfer; Irmgard Sinning

2000-01-01T23:59:59.000Z

231

Advanced Life Assessment Methods for Gas Turbine Engine Components  

Science Journals Connector (OSTI)

Abstract In combustion systems for aircraft applications, liners represent an interesting challenge from the engineering point of view regarding the state of stress, including high temperatures (up to 1500 °C) varying over time, high thermal gradients, creep related phenomena, mechanical fatigue and vibrations. As a matter of fact, under the imposed thermo-mechanical loading conditions, some sections of the liner can creep; the consequent residual stresses at low temperatures can cause plastic deformations. For these reasons, during engine operations, the material behaviour can be hardly non-linear and the simulation results to be time expensive. Aim of this paper is to select and implement some advanced material life assessment methods to gas turbine engine components such as combustor liners. Uniaxial damage models for Low Cycle Fatigue (LCF), based on Coffin-Manson, Neu-Sehitoglu and Chaboche works, have been implemented in Matlabź. In particular, experimental LCF and TMF results for full size specimens are compared to calibrate these models and to assess TMF life of specimens. Results obtained in different testing conditions have been used for validation. In particular, each model needs specific parameter calibrations to characterize the investigated materials; these parameters and their relation with temperature variation have been experimentally obtained by testing standard specimens.

Vincenzo Cuffaro; Francesca Curà; Raffaella Sesana

2014-01-01T23:59:59.000Z

232

Columbia River Component Data Evaluation Summary Report  

SciTech Connect (OSTI)

The purpose of the Columbia River Component Data Compilation and Evaluation task was to compile, review, and evaluate existing information for constituents that may have been released to the Columbia River due to Hanford Site operations. Through this effort an extensive compilation of information pertaining to Hanford Site-related contaminants released to the Columbia River has been completed for almost 965 km of the river.

C.S. Cearlock

2006-08-02T23:59:59.000Z

233

Method for the continuous processing of hermetic fiber optic components and the resultant fiber optic-to-metal components  

DOE Patents [OSTI]

Hermetic fiber optic-to-metal components and method for making hermetic fiber optic-to-metal components by assembling and fixturing elements comprising a metal shell, a glass preform, and a metal-coated fiber optic into desired relative positions and then sealing said fixtured elements preferably using a continuous heating process. The resultant hermetic fiber optic-to-metal components exhibit high hermeticity and durability despite the large differences in thermal coefficients of expansion among the various elements.

Kramer, Daniel P. (Centerville, OH)

1994-08-09T23:59:59.000Z

234

Relating geo-meteorological parameters to global solar radiation for Egypt by Iranna-Bapat's estimation models  

Science Journals Connector (OSTI)

Estimation of solar radiation is considered as the most important parameter for the design and development of various solar energy systems. But, the availability of the required data is very scarce and often not readily accessible. The foremost objective of the present study was to estimate the monthly average global solar radiation (GSR) at various locations for Egypt, by the generalised Iranna-Bapat's model. Iranna-Bapat's model is developed to estimate the value of global solar radiation at any location on earth surface. This model uses the most commonly measurable meteorological parameters such as ambient temperature, humidity, windspeed, moisture for a given location. A total of 11 locations spread across the country are used to validate this model. The computed values from Iranna-Bapat's model are compared with the measured values. Iranna-Bapat's model demonstrated acceptable results, and statistically displayed lower RMSE. Therefore this model could be a good estimator for predicting the global solar radiation at other locations for Egypt, where such data is not available.

Iranna Korachagaon; V.N. Bapat

2013-01-01T23:59:59.000Z

235

Model documentation Renewable Fuels Module of the National Energy Modeling System  

SciTech Connect (OSTI)

This report documents the objectives, analaytical approach and design of the National Energy Modeling System (NEMS) Renewable Fuels Module (RFM) as it relates to the production of the 1996 Annual Energy Outlook forecasts. The report catalogues and describes modeling assumptions, computational methodologies, data inputs, and parameter estimation techniques. A number of offline analyses used in lieu of RFM modeling components are also described.

NONE

1996-01-01T23:59:59.000Z

236

The Relative Humidity in an Isentropic Advection–Condensation Model: Limited Poleward Influence and Properties of Subtropical Minima  

E-Print Network [OSTI]

An idealized model of advection and condensation of water vapor is considered as a representation of processes influencing the humidity distribution along isentropic surfaces in the free troposphere. Results are presented ...

O'Gorman, Paul Ambrose

237

Modeling disease-related proteins in Saccharomyces cerevisiae : insights into alpha-synuclein and TorsinA biology  

E-Print Network [OSTI]

The yeast Saccharomyces cerevisiae has long been used to model complex cellular processes. As a eukaryote, much of its fundamental biology is conserved with higher organisms. As a single-celled, genetically tractable ...

Valastyan, Julie S. (Julie Suzanne)

2013-01-01T23:59:59.000Z

238

Thinking locally: exploring the importance of a subsidiary-centred model of FDI-related spillovers in Brazil  

Science Journals Connector (OSTI)

This paper investigates FDI-related spillovers in Brazil. Contrasting to previous studies on other emerging economies, it found horizontal spillovers. However, spillovers did not arise simply as consequence of technology transfer from MNC headquarters as the standard approach presumes; nor were associated with differences in technological intensity across industries, in domestic firms' absorptive capability. Instead, spillovers were associated with particular kinds of localised knowledge-creation activities by subsidiaries. Those findings have both significant theory and policy implications. They help to make clear the explanatory limitations of the dominant 'centrally-driven' perspectives, and point to the relevance of focusing on subsidiaries' technological behaviour in order to explain the existence or not of FDI-related spillovers. This implies that government policies aiming at simply attracting FDI do not ensure that FDI-related spillovers will automatically take place. Instead, effective policies on this matter should be concerned with the innovative behaviour of already established subsidiaries.

Anabel Marin; Ionara Costa

2010-01-01T23:59:59.000Z

239

The application of MacArthur's model to the relative abundance of species of aquatic Coleoptera in Fish Lake, Brazos County, Texas  

E-Print Network [OSTI]

THE APPLICATION OF MACARTHUR& S MODjL TO THE RELATIVE ABUNDANCE OF SPECIES OF AQUATIC COLEOPTERA IN FISH LAKE, HRAEOS COUNTY, TEXAS A Thesis Fred S. Conte Subad. tted to the Graduate College of Texas AAM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE MaF i966 Ma)or Sub)eot: Zoology THE APPLICATION OF MACARTHUR'8 MODEL TO THE RELATIVE ABUNDANCE OF SPKCIES OF AQUATIC COLEOPTERA IN FISH LAKE, BRAZOS COUNTX, TEXAS A Thesis Fred S, Conte Approved...

Conte, Fred Sequin

1966-01-01T23:59:59.000Z

240

An empirical expression to relate aerodynamic and surface temperatures for use within1 single-source energy balance models2  

E-Print Network [OSTI]

1 n.1 An empirical expression to relate aerodynamic and surface temperatures for use within1 single that the14 reference temperature for the estimation of convective fluxes, the aerodynamic temperature, is15 between the aerodynamic22 and the air temperatures and the difference between the surface and the air

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "related model components" 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

Int. J. Data Mining, Modelling and Management, Vol. 1, No. 1, 2008 103 A relational perspective on spatial data mining  

E-Print Network [OSTI]

on spatial data mining Donato Malerba Dipartimento di Informatica, UniversitĂ  degli Studi di Bari, Via and mobile devices nowadays collect a huge amount of spatial data, which have to be analysed in order of a spatial dimension adds some problems to data mining tasks. The geometrical representation and relative

Malerba, Donato

242

Acute augmentation of epoxygenated fatty acid levels rapidly reduces pain-related behavior in a rat model of  

E-Print Network [OSTI]

novel treatments. Here we demon- strate that stabilization of a class of bioactive lipids, epoxygenated sensitivity, glucose tolerance, or insulin secretion, indicating the efficacy of sEHIs are not related to the glycemic status. Quantitative metabolomic analysis of a panel of 26 bioactive lipids demonstrated that s

Hammock, Bruce D.

243

Safety-Oriented Design of Component Assemblies using Safety Interfaces  

E-Print Network [OSTI]

FACS 2006 Safety-Oriented Design of Component Assemblies using Safety Interfaces Jonas Elmqvistšoping, Sweden Abstract This paper promotes compositional reasoning in the context of safety-critical systems, and demonstrates a safety-oriented component model using an application from the automotive industry: an Adaptive

244

Kinetic and Related Models doi:10.3934/krm.2010.3.xx c American Institute of Mathematical Sciences  

E-Print Network [OSTI]

for the Schršodinger equation 62 5.1. The radiative transport limit 62 5.2. Limits for the wave function 64 5, Wave-wave correlation, Kinetic equation, Radiative transport equation, Fokker-Planck equation, Self-dependent Schršodinger 92 6. Kinetic models for correlations 98 6.1. Radiative transport equations

Bal, Guillaume

245

Cleanroom Work Support Component Areas  

Science Journals Connector (OSTI)

Satisfactory cleanroom operations require adequate support components. The same care in design required for the cleanroom proper must also be used in layout ... and activities that are carried out in the cleanroom

Alvin Lieberman

1992-01-01T23:59:59.000Z

246

STCIM: a dynamic granularity oriented and stability based component identification method  

Science Journals Connector (OSTI)

Among recent developments in the field of software reuse has been the increasing reuse of coarse-grained components, and it has been proved that granularity has great impact on component's reuse performance. However, previous studies have ignored rigorous ... Keywords: business component, component identification, dynamic granularity, feature modeling, stability

Zhong-Jie Wang; De-Chen Zhan; Xiao-Fei Xu

2006-05-01T23:59:59.000Z

247

Component framework for coupled integrated fusion plasma simulation  

Science Journals Connector (OSTI)

Successful simulation of the complex physics that affect magnetically confined fusion plasma remains an important target milestone towards the development of viable fusion energy. Major advances in the underlying physics formulations, mathematical modeling, ... Keywords: components, coupled simulation, framework, fusion

Wael R. Elwasif; David E. Bernholdt; Lee A. Berry; Donald B. Batchelor

2007-10-01T23:59:59.000Z

248

System for inspecting large size structural components  

DOE Patents [OSTI]

The present invention relates to a system for inspecting large scale structural components such as concrete walls or the like. The system includes a mobile gamma radiation source and a mobile gamma radiation detector. The source and detector are constructed and arranged for simultaneous movement along parallel paths in alignment with one another on opposite sides of a structural component being inspected. A control system provides signals which coordinate the movements of the source and detector and receives and records the radiation level data developed by the detector as a function of source and detector positions. The radiation level data is then analyzed to identify areas containing defects corresponding to unexpected variations in the radiation levels detected.

Birks, Albert S. (Columbus, OH); Skorpik, James R. (Kennewick, WA)

1990-01-01T23:59:59.000Z

249

Peridigm summary report : lessons learned in development with agile components.  

SciTech Connect (OSTI)

This report details efforts to deploy Agile Components for rapid development of a peridynamics code, Peridigm. The goal of Agile Components is to enable the efficient development of production-quality software by providing a well-defined, unifying interface to a powerful set of component-based software. Specifically, Agile Components facilitate interoperability among packages within the Trilinos Project, including data management, time integration, uncertainty quantification, and optimization. Development of the Peridigm code served as a testbed for Agile Components and resulted in a number of recommendations for future development. Agile Components successfully enabled rapid integration of Trilinos packages into Peridigm. A cost of this approach, however, was a set of restrictions on Peridigm's architecture which impacted the ability to track history-dependent material data, dynamically modify the model discretization, and interject user-defined routines into the time integration algorithm. These restrictions resulted in modifications to the Agile Components approach, as implemented in Peridigm, and in a set of recommendations for future Agile Components development. Specific recommendations include improved handling of material states, a more flexible flow control model, and improved documentation. A demonstration mini-application, SimpleODE, was developed at the onset of this project and is offered as a potential supplement to Agile Components documentation.

Salinger, Andrew Gerhard; Mitchell, John Anthony; Littlewood, David John; Parks, Michael L.

2011-09-01T23:59:59.000Z

250

Applicability of Related Data, Algorithms, and Models to the Simulation of Ground-Coupled Residential Hot Water Piping in California  

SciTech Connect (OSTI)

Residential water heating is an important consideration in California?s building energy efficiency standard. Explicit treatment of ground-coupled hot water piping is one of several planned improvements to the standard. The properties of water, piping, insulation, backfill materials, concrete slabs, and soil, their interactions, and their variations with temperature and over time are important considerations in the required supporting analysis. Heat transfer algorithms and models devised for generalized, hot water distribution system, ground-source heat pump and ground heat exchanger, nuclear waste repository, buried oil pipeline, and underground electricity transmission cable applications can be adapted to the simulation of under-slab water piping. A numerical model that permits detailed examination of and broad variations in many inputs while employing a technique to conserve computer run time is recommended.

Warner, J.L.; Lutz, J.D.

2006-01-01T23:59:59.000Z

251

A near-infrared census of the multi-component stellar structure of early-type dwarf galaxies in the Virgo cluster  

E-Print Network [OSTI]

The fraction of star-forming to quiescent dwarf galaxies varies from almost infinity in the field to zero in the centers of rich galaxy clusters. What is causing this pronounced morphology-density relation? What do quiescent dwarf galaxies look like when studied in detail, and what conclusions can be drawn about their formation mechanism? Here we study a nearly magnitude-complete sample (-19 deep near-infrared images from the SMAKCED project. We fit two-dimensional models with optional inner and outer components, as well as bar and lens components (in ~15% of the galaxies), to the galaxy images. While a single S\\'ersic function may approximate the overall galaxy structure, it does not entirely capture the light distribution of two-thirds of our galaxies, for which multi-component models provide a better fit. This fraction of complex galaxies shows a strong dependence on luminosity, being larger for brighter objects. We analyze the global and compone...

Janz, J; Lisker, T; Salo, H; Peletier, R F; Niemi, S -M; Toloba, E; Hensler, G; Falcón-Barroso, J; Boselli, A; Brok, M den; Hansson, K S A; Meyer, H T; Ry?, A; Paudel, S

2013-01-01T23:59:59.000Z

252

Component mixers and a hardness result for counterfeiting quantum money  

E-Print Network [OSTI]

In this paper we give the first proof that, under reasonable assumptions, a problem related to counterfeiting quantum money from knots [Farhi et al. 2010] is hard. Along the way, we introduce the concept of a component mixer, define three new classical query problems and associated complexity classes related to graph isomorphism and group membership, and conjecture an oracle separating QCMA from QMA.

Andrew Lutomirski

2011-07-01T23:59:59.000Z

253

On the Robustness of Cool Disc Components in Bright ULXs  

E-Print Network [OSTI]

In this letter, we comment on the robustness of putative cool (kT ~ 0.2 keV) accretion disc components in the X-ray spectra of the most luminous (L ~ 10^40 erg/s) ultra-luminous X-ray sources (ULXs) in nearby normal galaxies. When compared to stellar-mass black holes, the low disc temperatures observed in some ULXs may imply intermediate-mass black hole primaries. Recent work has claimed that such soft excesses are unlikely to be actual disc components, based on the lack of variability in these components, and in the overall source flux. Other work has proposed that alternative phenomenological models, and complex Comptonisation models, rule-out cool disc components in ULX spectra. An inspection of the literature on Galactic stellar-mass black holes and black hole candidates demonstrates that the flux behaviours seen in specific ULXs are consistent with phenomena observed in well-known Galactic X-ray binaries. Applying Comptonisation models to simulated disc blackbody plus power-law spectra shows that at the sensitivity achieved in even the best ULX spectra, Comptonisation fits are highly model-dependent, and do not yield meaningful constraints on the accretion flow. In contrast, the need for a soft, thermal component does not appear to be model-dependent. As we have previously noted, soft thermal components in ULX spectra may not represent accretion discs, but present alternatives to this interpretation are not robust.

J. M. Miller; A. C. Fabian; M. C. Miller

2005-12-22T23:59:59.000Z

254

Inverse bifurcation analysis of a model for the mammalian G1/S regulatory module  

Science Journals Connector (OSTI)

Given a large, complex ordinary differential equation model of a gene regulatory network, relating its dynamical properties to its network structure is a challenging task. Biologically important questions include: what network components are responsible ...

James Lu; Heinz W. Engl; Rainer Machné; Peter Schuster

2007-03-01T23:59:59.000Z

255

Hydrogen Delivery Analysis Models  

Broader source: Energy.gov [DOE]

DOE H2A Delivery Models: Components Model (delivery system component costs and performance) and Scenario Model (for urban and rural/interstate markets and demand levels, market penetration)

256

Primary Components of Binomial Ideals  

E-Print Network [OSTI]

for primary components of special binomial ideals. A feature of this work is that our results are independent of the characteristic of the field. First of all, we analyze the primary decomposition of a special class of binomial ideals, lattice ideals...

Eser, Zekiye

2014-07-11T23:59:59.000Z

257

Thermal Study of Inverter Components: Preprint  

SciTech Connect (OSTI)

Thermal histories of inverter components were collected from operating inverters from several manufacturers and three locations. The data were analyzed to determine thermal profiles, the dependence on local conditions, and to assess the effect on inverter reliability. Inverter temperatures were shown to increase with the power dissipation of the inverters, follow diurnal and annual cycles, and have a dependence on wind speed. An accumulated damage model was applied to the temperature profiles and an example of using these data to predict reliability was explored.

Sorensen, N. R.; Thomas, E. V.; Quintana, M. A.; Barkaszi, S.; Rosenthal, A.; Zhang, Z.; Kurtz, S.

2012-06-01T23:59:59.000Z

258

Towards a Better Understanding of the GRB Phenomenon: a New Model for GRB Prompt Emission and its effects on the New Non-Thermal L$_\\mathrm{i}^\\mathrm{NT}$-E$_\\mathrm{peak,i}^\\mathrm{rest,NT}$ relation  

E-Print Network [OSTI]

We reanalyze the prompt emission of two of the brightest Fermi GRBs (080916C and 090926A) with a new model composed of 3 components: (i) a thermal-like component--approximated with a black body (BB)--interpreted as the jet photosphere emission of a magnetized relativistic outflow, (ii) a non-thermal component--approximated with a Band function--interpreted as synchrotron radiation in an optically thin region above the photosphere either from internal shocks or magnetic field dissipation, and (iii) an extra power law (PL) extending from low to high energies likely of inverse Compton origin, even though it remains challenging. Through fine-time spectroscopy down to the 100 ms time scale, we follow the smooth evolution of the various components. From this analysis the Band function is globally the most intense component, although the additional PL can overpower the others in sharp time structures. The Band function and the BB component are the most intense at early times and globally fade across the burst durati...

Guiriec, S; Daigne, F; Zhang, B; Hascoet, R; Nemmen, R; Thompson, D; Bhat, N; Gehrels, N; Gonzalez, M; Kaneko, Y; McEnery, J; Mochkovitch, R; Racusin, J; Ryde, F; Sacahui, J; Unsal, A

2015-01-01T23:59:59.000Z

259

Characterization of acidic components in Midway Sunset crude oil  

SciTech Connect (OSTI)

The crude oil from the Midway Sunset Field in California contains 70% non-distillable constituents called resid. Analysis of Midway Sunset crude components using standard analytical techniques such as GC and GC-MS is difficult due to the complex and intractable nature of the resid. Acidic components in crudes are of importance because the presence of these compounds results in problems related to pipe corrosion and waste-water contamination. Detailed characterization of the acidic components of Midway Sunset crude using high-resolution electron impact (HREI) and chemical ionization (HRCI) mass spectrometry have been undertaken.

Haas, G.W.; Ellis, L.; Hunt, J.E.; Winans, R.E. [Argonne National Lab., IL (United States)

1995-12-31T23:59:59.000Z

260

Experiential Component Approval Form Concentration in Nanotechnology  

E-Print Network [OSTI]

Experiential Component Approval Form Concentration in Nanotechnology Return completed form to ENG Plan to complete the experiential component as a requirement for the concentration in Nanotechnology to complete the experiential component for the Nanotechnology Concentration by: Research Experience in Lab

Goldberg, Bennett

Note: This page contains sample records for the topic "related model components" 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

Laser ultrasonic multi-component imaging  

DOE Patents [OSTI]

Techniques for ultrasonic determination of the interfacial relationship of multi-component systems are discussed. In implementations, a laser energy source may be used to excite a multi-component system including a first component and a second component at least in partial contact with the first component. Vibrations resulting from the excitation may be detected for correlation with a resonance pattern indicating if discontinuity exists at the interface of the first and second components.

Williams, Thomas K. (Federal Way, WA); Telschow, Kenneth (Des Moines, WA)

2011-01-25T23:59:59.000Z

262

Processing of Activated Core Components  

SciTech Connect (OSTI)

Used activated components from the core of a NPP like control elements, water channels from a BWR, and others like in-core measurement devices need to be processed into waste forms suitable for interim storage, and for the final waste repository. Processing of the activated materials can be undertaken by underwater cutting and packaging or by cutting and high-pressure compaction in a hot cell. A hot cell is available in Germany as a joint investment between GNS and the Karlsruhe Research Center at the latter's site. Special transport equipment is available to transport the components ''as-is'' to the hot cell. Newly designed underwater processing equipment has been designed, constructed, and operated for the special application of NPP decommissioning. This equipment integrates an underwater cutting device with an 80 ton force underwater in-drum compactor.

Friske, A.; Gestermann, G.; Finkbeiner, R.

2003-02-26T23:59:59.000Z

263

Nuclear component horizontal seismic restraint  

DOE Patents [OSTI]

A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end. The reactor vessel and reactor guard vessel use thicker section roll-forged rings welded between the vessel straight shell sections and the bottom hemispherical head sections. The inside of the reactor guard vessel ring forging contains local vertical dovetail slots and upper ledge pockets to mount and retain field fitted and installed blocks. As an option, the horizontal displacement of the reactor vessel core support cone can be limited by including shop fitted/installed local blocks in opposing alignment with the reactor vessel forged ring. Beams embedded in the wall of the reactor building protrude into apertures in the thermal insulation shell adjacent the reactor guard vessel ring and have motion limit blocks attached thereto to provide to a predetermined clearance between the blocks and reactor guard vessel ring.

Snyder, Glenn J. (Lynchburg, VA)

1988-01-01T23:59:59.000Z

264

Method for the continuous processing of hermetic fiber optic components and the resultant fiber optic-to-metal components  

DOE Patents [OSTI]

Hermetic fiber optic-to-metal components and method for making hermetic fiber optic-to-metal components by assembling and fixturing elements comprising a metal shell, a glass preform, and a metal-coated fiber optic into desired relative positions and then sealing said fixtured elements preferably using a continuous heating process is disclosed. The resultant hermetic fiber optic-to-metal components exhibit high hermeticity and durability despite the large differences in thermal coefficients of expansion among the various elements. 3 figs.

Kramer, D.P.

1994-08-09T23:59:59.000Z

265

Perceptual-components architecture for digital video  

Science Journals Connector (OSTI)

A perceptual-components architecture for digital video partitions the image stream into signal components in a manner analogous to that used in the human visual system. These...

Watson, Andrew B

1990-01-01T23:59:59.000Z

266

Battery systems performance studies - HIL components testing...  

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

systems performance studies - HIL components testing Battery systems performance studies - HIL components testing 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual...

267

HIGH INTEGRITY MAGNESIUM AUTOMOTIVE COMPONENTS (HIMAC) | Department...  

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

HIGH INTEGRITY MAGNESIUM AUTOMOTIVE COMPONENTS (HIMAC) HIGH INTEGRITY MAGNESIUM AUTOMOTIVE COMPONENTS (HIMAC) 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual...

268

SPC Fire Weather Forecast Criteria Critical for temperature, wind, and relative humidity  

E-Print Network [OSTI]

the Energy Release Component (ERC) for fuel model G and 100 hr fuel moistures, which are available from: - Sustained winds 20 mph or greater (15 mph Florida) - Minimum relative humidity at or below regional thresholds (Fig. 1) - Temperatures above 50-60° F, depending on the season - Dry fuels (as defined below

269

Radiolysis Model Formulation for Integration with the Mixed Potential Model  

SciTech Connect (OSTI)

The U.S. Department of Energy Office of Nuclear Energy (DOE-NE), Office of Fuel Cycle Technology has established the Used Fuel Disposition Campaign (UFDC) to conduct the research and development activities related to storage, transportation, and disposal of used nuclear fuel (UNF) and high-level radioactive waste. Within the UFDC, the components for a general system model of the degradation and subsequent transport of UNF is being developed to analyze the performance of disposal options [Sassani et al., 2012]. Two model components of the near-field part of the problem are the ANL Mixed Potential Model and the PNNL Radiolysis Model. This report is in response to the desire to integrate the two models as outlined in [Buck, E.C, J.L. Jerden, W.L. Ebert, R.S. Wittman, (2013) “Coupling the Mixed Potential and Radiolysis Models for Used Fuel Degradation,” FCRD-UFD-2013-000290, M3FT-PN0806058

Buck, Edgar C.; Wittman, Richard S.

2014-07-10T23:59:59.000Z

270

Method for separating disparate components in a fluid stream  

DOE Patents [OSTI]

The invention provides a method of separating a mixed component waste stream in a centrifugal separator. The mixed component waste stream is introduced into the separator and is centrifugally separated within a spinning rotor. A dual vortex separation occurs due to the phase density differences, with the phases exiting the rotor distinct from one another. In a preferred embodiment, aqueous solutions of organics can be separated with up to 100% efficiency. The relatively more dense water phase is centrifugally separated through a radially outer aperture in the separator, while the relatively less dense organic phase is separated through a radially inner aperture.

Meikrantz, David H. (Idaho Falls, ID)

1990-01-01T23:59:59.000Z

271

A sensitivity analysis of the WIPP disposal room model: Phase 1  

SciTech Connect (OSTI)

The WIPP Disposal Room Model (DRM) is a numerical model with three major components constitutive models of TRU waste, crushed salt backfill, and intact halite -- and several secondary components, including air gap elements, slidelines, and assumptions on symmetry and geometry. A sensitivity analysis of the Disposal Room Model was initiated on two of the three major components (waste and backfill models) and on several secondary components as a group. The immediate goal of this component sensitivity analysis (Phase I) was to sort (rank) model parameters in terms of their relative importance to model response so that a Monte Carlo analysis on a reduced set of DRM parameters could be performed under Phase II. The goal of the Phase II analysis will be to develop a probabilistic definition of a disposal room porosity surface (porosity, gas volume, time) that could be used in WIPP Performance Assessment analyses. This report documents a literature survey which quantifies the relative importance of the secondary room components to room closure, a differential analysis of the creep consolidation model and definition of a follow-up Monte Carlo analysis of the model, and an analysis and refitting of the waste component data on which a volumetric plasticity model of TRU drum waste is based. A summary, evaluation of progress, and recommendations for future work conclude the report.

Labreche, D.A.; Beikmann, M.A. [RE/SPEC, Inc., Albuquerque, NM (United States); Osnes, J.D. [RE/SPEC, Inc., Rapid City, SD (United States); Butcher, B.M. [Sandia National Labs., Albuquerque, NM (United States)

1995-07-01T23:59:59.000Z

272

Predicting Problems Caused by Component Upgrades  

E-Print Network [OSTI]

to guarantee that the system's behavior is preserved across a component replacement. If automated logical

Liskov, Barbara

273

E-Print Network 3.0 - architecture styles components Sample Search...  

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

Cincia da Computao Summary: and server style The client-server style denes a service-oriented architecture where components can only... -based join point models An architectural...

274

The Quantification of Biodiversity: An Esoteric Quest or a Vital Component of Sustainable Development?  

Science Journals Connector (OSTI)

...or a Vital Component of Sustainable Development? Thomas E. Lovejoy Biodiversity relates to sustainable development through a series of direct...level of the molecule. Sustainable development relates to the quantification...

1994-01-01T23:59:59.000Z

275

Calculable lepton masses, seesaw relations and four neutrino mixings in a 3-3-1 model with extra U(1) symmetry  

E-Print Network [OSTI]

We propose a scheme in that the masses of the heavier leptons obey seesaw type relations. The light lepton masses, except the electron and the electron neutrino ones are generated by one loop level radiative corrections. We work in a version of the 3-3-1 electroweak model that predicts singlets (charged and neutral) of heavy leptons beyond the known ones. An extra U(1)_Omega symmetry is introduced in order to avoid the light leptons get masses at the tree level. The electron mass induces an explicit symmetry breaking at U(1). We discuss also the mixing matrix among four neutrinos. The new energy scale required is not higher than a few TeV.

Nelson V. Cortez; Mauro D. Tonasse

2005-10-11T23:59:59.000Z

276

Components of the Mental Lexicon  

Science Journals Connector (OSTI)

...language production. Different syntactic word-classes are known to cause greater or less difficulty for various categories of aphasic...the relative difficulties of this or that word-class change according to the input and output modalities...

1981-01-01T23:59:59.000Z

277

Vortex trimer in three-component Bose-Einstein condensates  

E-Print Network [OSTI]

Vortex trimer is predicted in three-component Bose-Einstein condensates with internal coherent couplings. The molecule is made by three constituent vortices which are bounded by domain walls of the relative phases. We show that the shape and the size of the molecule can be controlled by changing the internal coherent couplings.

Minoru Eto; Muneto Nitta

2012-01-01T23:59:59.000Z

278

COMPUTATIONAL ISSUES IN PRINCIPAL COMPONENTS ANALYSIS Daniel Povey  

E-Print Network [OSTI]

Components Analysis (PCA) type of computation, in which we need to compute the largest eigen- values in the symmetric positive semi-definite case A special case of Singular Value Decomposition (SVD) that is appli-sparse ma- trices and is relatively easy to implement. The value of this paper is in presenting a simple

Povey, Dan

279

Advanced computational simulation for design and manufacturing of lightweight material components for automotive applications  

SciTech Connect (OSTI)

Computational vehicle models for the analysis of lightweight material performance in automobiles have been developed through collaboration between Oak Ridge National Laboratory, the National Highway Transportation Safety Administration, and George Washington University. The vehicle models have been verified against experimental data obtained from vehicle collisions. The crashed vehicles were analyzed, and the main impact energy dissipation mechanisms were identified and characterized. Important structural parts were extracted and digitized and directly compared with simulation results. High-performance computing played a key role in the model development because it allowed for rapid computational simulations and model modifications. The deformation of the computational model shows a very good agreement with the experiments. This report documents the modifications made to the computational model and relates them to the observations and findings on the test vehicle. Procedural guidelines are also provided that the authors believe need to be followed to create realistic models of passenger vehicles that could be used to evaluate the performance of lightweight materials in automotive structural components.

Simunovic, S.; Aramayo, G.A.; Zacharia, T. [Oak Ridge National Lab., TN (United States); Toridis, T.G. [George Washington Univ., Washington, DC (United States); Bandak, F.; Ragland, C.L. [Dept. of Transportation, Washington, DC (United States)

1997-04-01T23:59:59.000Z

280

Object Model as the Basis of the Information Technology of Designing Complex Socio-Economic Systems  

Science Journals Connector (OSTI)

A method of modeling complex socio-economic systems based on the object-oriented approach is considered. The method is the basis for the information technology of design and allows creating a hierarchical model of a complex system. The results of applying ... Keywords: functional relations, hierarchy of components, object-oriented model, technology of design

M. P. Silich

2005-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Relational EPR  

E-Print Network [OSTI]

We study the EPR-type correlations from the perspective of the relational interpretation of quantum mechanics. We argue that these correlations do not entail any form of 'non-locality', when viewed in the context of this interpretation. The abandonment of strict Einstein realism implied by the relational stance permits to reconcile quantum mechanics, completeness, (operationally defined) separability, and locality.

Matteo Smerlak; Carlo Rovelli

2006-04-10T23:59:59.000Z

282

A stochastic model for annual reproductive success.  

E-Print Network [OSTI]

conditions or paren- tal phenotypes might be more strongly related to particular components of reproductive success

Kendall, Bruce E.; Wittmann, Marion E

2010-01-01T23:59:59.000Z

283

Predicting problems caused by component upgrades  

E-Print Network [OSTI]

This thesis presents a new, automatic technique to assess whether replacing a component of a software system by a purportedly compatible component may change the behavior of the system. The technique operates before ...

McCamant, Stephen

2004-01-01T23:59:59.000Z

284

IEA Task 27 BUILDING ENVELOPE COMPONENTS  

E-Print Network [OSTI]

IEA Task 27 BUILDING ENVELOPE COMPONENTS Performance, durability and sustainability of advanced windows and solar components for building envelopes Energy Performance Assessment Methodology Starting................................................................................................................................................. 3 2 Concepts of Energy Performance Assessment of Building Envelopes

285

Advanced filters and components for power applications  

E-Print Network [OSTI]

The objective of this thesis is to improve the high frequency performance of components and filters by better compensating the parasitic effects of practical components. The main application for this improvement is in ...

Neugebauer, Timothy Carl, 1975-

2004-01-01T23:59:59.000Z

286

Tools to Implement MPDV Component Characteristics  

SciTech Connect (OSTI)

This slide show presents work on photonic Doppler velocimetry multiplexing techniques, particularly as regards measurements on components.

Pena, M; Daykin, E; Emmit, R; Garza, A; Gibo, M; Hutchins, M; Perez, C; Teel, M

2012-10-22T23:59:59.000Z

287

Predicting Problems Caused by Component Upgrades  

E-Print Network [OSTI]

. If automated logical comparison indicates that the new component does not make all the guarantees that the old

Liskov, Barbara

288

Tensor Principal Component Analysis via Convex Optimization  

E-Print Network [OSTI]

Dec 11, 2012 ... Keywords: Tensor; Principal Component Analysis; Low Rank; Nuclear Norm; Semidefinite Programming Relaxation. Category 1: Convex and ...

Bo Jiang

2012-12-11T23:59:59.000Z

289

Towards breaking temperature equilibrium in multi-component Eulerian schemes  

SciTech Connect (OSTI)

We investigate the effects ofthermal equilibrium on hydrodynamic flows and describe models for breaking the assumption ofa single temperature for a mixture of components in a cell. A computational study comparing pressure-temperature equilibrium simulations of two dimensional implosions with explicit front tracking is described as well as implementation and J-D calculations for non-equilibrium temperature methods.

Grove, John W [Los Alamos National Laboratory; Masser, Thomas [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

290

Safety implementation of adaptive embedded control components  

Science Journals Connector (OSTI)

The paper deals with dynamic reconfigurations of component-based adaptive embedded control systems to be automatically handled at run-time by intelligent agents. We define a Control Component as a software unit supporting control tasks of the system ... Keywords: adaptive embedded control system, dynamic reconfiguration, intelligent agent, semaphore, software control component

Atef Gharbi; Mohamed Khalgui; Samir Ben Ahmed

2011-09-01T23:59:59.000Z

291

LIRMM UM II Component based Software Architecture  

E-Print Network [OSTI]

1 LIRMM UM II Component based Software Architecture of Robot Controllers R. Passama, D. Andreu, C component approaches and robot control architectures. This methodology defines a process that guides architecture, useful for analysis and integration, and a dedicated component-based language, focusing

Paris-Sud XI, Université de

292

Evaluation of aging degradation of structural components  

SciTech Connect (OSTI)

Irradiation embrittlement of the neutron shield tank (NST) A212 Grade B steel from the Shippingport reactor, as well as thermal embrittlement of CF-8 cast stainless steel components from the Shippingport and KRB reactors, has been characterized. Increases in Charpy transition temperature (CTT), yield stress, and hardness of the NST material in the low-temperature low-flux environment are consistent with the test reactor data for irradiations at < 232{degrees}C. The shift in CTT is not as severe as that observed in surveillance samples from the High Flux Isotope Reactor (HFIR): however, it shows very good agreement with the results for HFIR A212-B steel irradiated in the Oak Ridge Research Reactor. The results indicate that fluence rate has not effect on radiation embrittlement at rates as low as 2 {times} 10{sup 8} n/cm{sup 2}{center_dot}s at the low operating temperature of the Shippingport NST, i.e., 55{degrees}C. This suggest that radiation damage in Shippingport NST and HFIR surveillance samples may be different because of the neutron spectra and/or Cu and Ni content of the two materials. Cast stainless steel components show relatively modest decreases in fracture toughness and Charpy-impact properties and a small increase in tensile strength. Correlations for estimating mechanical properties of cast stainless steels predict accurate or slightly conservative values for Charpy-impact energy, tensile flow stress, fracture toughness J-R curve, and J{sub IC} of the materials. The kinetics of thermal embrittlement and degree of embrittlement at saturation, i.e., the minimum impact energy achieved after long-term aging, were established from materials that were aged further in the laboratory. The results were consistent with the estimates. The correlations successfully predict the mechanical properties of the Ringhals 2 reactor hot- and crossover-leg elbows (CF-8M steel) after service of {approx}15 y.

Chopra, O.K.; Shack, W.J.

1992-03-01T23:59:59.000Z

293

Evaluation of aging degradation of structural components  

SciTech Connect (OSTI)

Irradiation embrittlement of the neutron shield tank (NST) A212 Grade B steel from the Shippingport reactor, as well as thermal embrittlement of CF-8 cast stainless steel components from the Shippingport and KRB reactors, has been characterized. Increases in Charpy transition temperature (CTT), yield stress, and hardness of the NST material in the low-temperature low-flux environment are consistent with the test reactor data for irradiations at < 232{degrees}C. The shift in CTT is not as severe as that observed in surveillance samples from the High Flux Isotope Reactor (HFIR): however, it shows very good agreement with the results for HFIR A212-B steel irradiated in the Oak Ridge Research Reactor. The results indicate that fluence rate has not effect on radiation embrittlement at rates as low as 2 {times} 10{sup 8} n/cm{sup 2}{center dot}s at the low operating temperature of the Shippingport NST, i.e., 55{degrees}C. This suggest that radiation damage in Shippingport NST and HFIR surveillance samples may be different because of the neutron spectra and/or Cu and Ni content of the two materials. Cast stainless steel components show relatively modest decreases in fracture toughness and Charpy-impact properties and a small increase in tensile strength. Correlations for estimating mechanical properties of cast stainless steels predict accurate or slightly conservative values for Charpy-impact energy, tensile flow stress, fracture toughness J-R curve, and J{sub IC} of the materials. The kinetics of thermal embrittlement and degree of embrittlement at saturation, i.e., the minimum impact energy achieved after long-term aging, were established from materials that were aged further in the laboratory. The results were consistent with the estimates. The correlations successfully predict the mechanical properties of the Ringhals 2 reactor hot- and crossover-leg elbows (CF-8M steel) after service of {approx}15 y.

Chopra, O.K.; Shack, W.J.

1992-03-01T23:59:59.000Z

294

Electrochemical sensor for monitoring electrochemical potentials of fuel cell components  

DOE Patents [OSTI]

An electrochemical sensor comprised of wires, a sheath, and a conduit can be utilized to monitor fuel cell component electric potentials during fuel cell shut down or steady state. The electrochemical sensor contacts an electrolyte reservoir plate such that the conduit wicks electrolyte through capillary action to the wires to provide water necessary for the electrolysis reaction which occurs thereon. A voltage is applied across the wires of the electrochemical sensor until hydrogen evolution occurs at the surface of one of the wires, thereby forming a hydrogen reference electrode. The voltage of the fuel cell component is then determined with relation to the hydrogen reference electrode.

Kunz, Harold R. (Vernon, CT); Breault, Richard D. (Coventry, CT)

1993-01-01T23:59:59.000Z

295

Phase Chemistry of Tank Sludge Residual Components  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has millions of gallons of high level nuclear waste stored in underground tanks at Hanford, Washington and Savannah River, South Carolina. These tanks will eventually be emptied and decommissioned. This will leave a residue of sludge adhering to the interior tank surfaces that may contaminate nearby groundwaters with radionuclides and RCRA metals. Performance assessment (PA) calculations must be carried out prior to closing the tanks. This requires developing radionuclide release models from the sludges so that the PA calculations can be based on credible source terms. These efforts continued to be hindered by uncertainties regarding the actual nature of the tank contents and the distribution of radionuclides among the various phases. In particular, it is of vital importance to know what radionuclides are associated with solid sludge components. Experimentation on actual tank sludges can be difficult, dangerous and prohibitively expensive. The research funded under this grant for the past three years was intended to provide a cost-effective method for developing the needed radionuclide release models using non-radioactive artificial sludges. Insights gained from this work will also have more immediate applications in understanding the processes responsible for heel development in the tanks and in developing effective technologies for removing wastes from the tanks.

J.L. Krumhansl

2002-04-02T23:59:59.000Z

296

Expandable Metal Liner For Downhole Components  

DOE Patents [OSTI]

A liner for an annular downhole component is comprised of an expandable metal tube having indentations along its surface. The indentations are formed in the wall of the tube either by drawing the tube through a die, by hydroforming, by stamping, or roll forming and may extend axially, radially, or spirally along its wall. The indentations accommodate radial and axial expansion of the tube within the downhole component. The tube is inserted into the annular component and deformed to match an inside surface of the component. The tube may be expanded using a hydroforming process or by drawing a mandrel through the tube. The tube may be expanded in such a manner so as to place it in compression against the inside wall of the component. The tube is useful for improving component hydraulics, shielding components from contamination, inhibiting corrosion, and preventing wear to the downhole component during use. It may also be useful for positioning conduit and insulated conductors within the component. An insulating material may be disposed between the tube and the component in order to prevent galvanic corrosion of the downhole component.

Hall, David R. (Provo, UT); Fox, Joe R. (Provo, UT)

2004-10-05T23:59:59.000Z

297

Method for producing hard-surfaced tools and machine components  

DOE Patents [OSTI]

In one aspect, the invention comprises a method for producing tools and machine components having superhard crystalline-ceramic work surfaces. Broadly, the method comprises two steps: a tool or machine component having a ceramic near-surface region is mounted in ion-implantation apparatus. The region then is implanted with metal ions to form, in the region, a metastable alloy of the ions and said ceramic. The region containing the alloy is characterized by a significant increase in hardness properties, such as microhardness, fracture-toughness, and/or scratch-resistance. The resulting improved article has good thermal stability at temperatures characteristic of typical tool and machine-component uses. The method is relatively simple and reproducible.

McHargue, C.J.

1981-10-21T23:59:59.000Z

298

Method for producing hard-surfaced tools and machine components  

DOE Patents [OSTI]

In one aspect, the invention comprises a method for producing tools and machine components having superhard crystalline-ceramic work surfaces. Broadly, the method comprises two steps: A tool or machine component having a ceramic near-surface region is mounted in ion-implantation apparatus. The region then is implanted with metal ions to form, in the region, a metastable alloy of the ions and said ceramic. The region containing the alloy is characterized by a significant increase in hardness properties, such as microhardness, fracture-toughness, and/or scratch-resistance. The resulting improved article has good thermal stability at temperatures characteristic of typical tool and machine-component uses. The method is relatively simple and reproducible.

McHargue, Carl J. (Farragut, TN)

1985-01-01T23:59:59.000Z

299

Rancho Seco-Planning for Large Components  

SciTech Connect (OSTI)

The Rancho Seco Nuclear Generating Station ceased operation in June of 1989 and entered an extended period of Safestor to allow funds to accumulate for dismantlement. Incremental dismantlement was begun in 1997 of steam systems and based on the successful work to date, the Sacramento Municipal Utility District (SMUD) board of directors approved full decommissioning in July 1999. A schedule has been developed for completion of decommissioning by 2008, allowing decommissioning funds to accumulate until they are needed. Systems removal began in the Auxiliary Building in October of 1999 and in the Reactor Building in January of 2000. Systems dismantlement continues in the Reactor Building and the Auxiliary Building and should be completed by mid 2003. The Spent Fuel is currently being moved to dry storage in an onsite ISFSI, with completion scheduled for late 2002. The personnel resources on site are currently assigned to support both the dry fuel project and the dismantlement of the facility. Once fuel movement is complete more resources will be provided for dismantlement. Characterization of major components other than the vessel is complete and planning for their removal is in progress with various cut-up and/or shipping options being evaluated. Planning for the vessel and internals removal is being performed. The relatively slow pace of the work allows careful evaluation of cost-effective options as they become available in the industry.

Gardiner, D. E.; Newey, J. M; Snyder, M. W.

2002-02-27T23:59:59.000Z

300

Two component-three dimensional catalysis  

DOE Patents [OSTI]

This invention relates to catalytic reactor membranes having a gas-impermeable membrane for transport of oxygen anions. The membrane has an oxidation surface and a reduction surface. The membrane is coated on its oxidation surface with an adherent catalyst layer and is optionally coated on its reduction surface with a catalyst that promotes reduction of an oxygen-containing species (e.g., O.sub.2, NO.sub.2, SO.sub.2, etc.) to generate oxygen anions on the membrane. The reactor has an oxidation zone and a reduction zone separated by the membrane. A component of an oxygen containing gas in the reduction zone is reduced at the membrane and a reduced species in a reactant gas in the oxidation zone of the reactor is oxidized. The reactor optionally contains a three-dimensional catalyst in the oxidation zone. The adherent catalyst layer and the three-dimensional catalyst are selected to promote a desired oxidation reaction, particularly a partial oxidation of a hydrocarbon.

Schwartz, Michael (Boulder, CO); White, James H. (Boulder, CO); Sammells, Anthony F. (Boulder, CO)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Power Deposition on Tokamak Plasma-Facing Components  

E-Print Network [OSTI]

The SMARDDA software library is used to model plasma interaction with complex engineered surfaces. A simple flux-tube model of power deposition necessitates the following of magnetic fieldlines until they meet geometry taken from a CAD (Computer Aided Design) database. Application is made to 1) models of ITER tokamak limiter geometry and 2) MASTU tokamak divertor designs, illustrating the accuracy and effectiveness of SMARDDA, even in the presence of significant nonaxisymmetric ripple field. SMARDDA's ability to exchange data with CAD databases and its speed of execution also give it the potential for use directly in the design of tokamak plasma facing components.

Arter, Wayne; Fishpool, Geoff

2014-01-01T23:59:59.000Z

302

Physics-Based Stress Corrosion Cracking Component Reliability  

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

Physics-Based Stress Corrosion Physics-Based Stress Corrosion Cracking Component Reliability Model cast in an R7-Compatible Cumulative Damage Framework Draft Report Supporting Technology Inputs to the Risk- Informed Safety Margin Characterization Pathway of the DOE Light Water Reactor Sustainability Program Stephen D. Unwin Kenneth I. Johnson Robert F. Layton Peter P. Lowry Scott E. Sanborn Mychailo B. Toloczko PNNL-20596 July 2011 Physics-Based SCC Reliability Model in a Cumulative Damage Framework 2 Physics-Based SCC Reliability Model in a Cumulative Damage Framework 3 Table of Contents Executive Summary............................................................................... 4 1. Introduction .......................................................................... 5

303

TransCom model simulations of CH? and related species: linking transport, surface flux and chemical loss with CH? variability in the troposphere and lower stratosphere  

E-Print Network [OSTI]

A chemistry-transport model (CTM) intercomparison experiment (TransCom-CH?) has been designed to investigate the roles of surface emissions, transport and chemical loss in simulating the global methane distribution. Model ...

Patra, P. K.

304

Solid tags for identifying failed reactor components  

DOE Patents [OSTI]

A solid tag material which generates stable detectable, identifiable, and measurable isotopic gases on exposure to a neutron flux to be placed in a nuclear reactor component, particularly a fuel element, in order to identify the reactor component in event of its failure. Several tag materials consisting of salts which generate a multiplicity of gaseous isotopes in predetermined ratios are used to identify different reactor components.

Bunch, Wilbur L. (Richland, WA); Schenter, Robert E. (Richland, WA)

1987-01-01T23:59:59.000Z

305

Toxic components in diesel exhaust fumes  

Science Journals Connector (OSTI)

To control diesel-engine toxicity, a computation method is proposed for the concentration of toxic components in diesel exhaust fumes, on the basis of external engine...

A. F. Dorokhov; E. V. Klimova

2009-12-01T23:59:59.000Z

306

Uranium Weapons Components Successfully Dismantled | National...  

National Nuclear Security Administration (NNSA)

Successfully Dismantled March 20, 2007 Uranium Weapons Components Successfully Dismantled Oak Ridge, TN Continuing its efforts to reduce the size of the U.S. nuclear weapons...

307

NDE DEVELOPMENT FOR ACERT ENGINE COMPONENTS  

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

Barrier Coating (TBC) 12 PM024 TBCs applied on engine exhaust components reduce heat loss so improve efficiency; they also replace the use of expensive high-temperature...

308

Component and System Qualification Workshop Proceedings  

Broader source: Energy.gov [DOE]

Proceedings from the U.S. DOE Hydrogen Component and System Qualification Workshop, held at Sandia National Laboratory in Livermore, CA, on November 4, 2010.

309

Developing Language Processing Components with GATE  

E-Print Network [OSTI]

Developing Language Processing Components with GATE (a User Guide) For GATE version 3 beta 1 (July.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4 [D] Get Started

Maynard, Diana

310

On UHECR energy estimation algorithms based on the measurement of electromagnetic component parameters in EAS  

E-Print Network [OSTI]

Model calculations are performed of extensive air shower (EAS) component energies using a variety of hadronic interaction parameters. A conversion factor from electromagnetic component energy to the energy of ultra-high energy cosmic rays (UHECRs) and its model and primary mass dependence is studied. It is shown that model dependence of the factor minimizes under the necessary condition of the same maximum position and muon content of simulated showers.

A. A. Ivanov

2007-04-26T23:59:59.000Z

311

Hybrid solar lighting systems and components  

DOE Patents [OSTI]

A hybrid solar lighting system and components having at least one hybrid solar concentrator, at least one fiber receiver, at least one hybrid luminaire, and a light distribution system operably connected to each hybrid solar concentrator and each hybrid luminaire. A controller operates each component.

Muhs, Jeffrey D. (Lenoir City, TN); Earl, Dennis D. (Knoxville, TN); Beshears, David L. (Knoxville, TN); Maxey, Lonnie C. (Powell, TN); Jordan, John K. (Oak Ridge, TN); Lind, Randall F. (Lenoir City, TN)

2007-06-12T23:59:59.000Z

312

Hybrid solar lighting distribution systems and components  

DOE Patents [OSTI]

A hybrid solar lighting distribution system and components having at least one hybrid solar concentrator, at least one fiber receiver, at least one hybrid luminaire, and a light distribution system operably connected to each hybrid solar concentrator and each hybrid luminaire. A controller operates all components.

Muhs, Jeffrey D. (Lenoir City, TN); Earl, Dennis D. (Knoxville, TN); Beshears, David L. (Knoxville, TN); Maxey, Lonnie C. (Powell, TN); Jordan, John K. (Oak Ridge, TN); Lind, Randall F. (Lenoir City, TN)

2011-07-05T23:59:59.000Z

313

Hot gas path component cooling system  

DOE Patents [OSTI]

A cooling system for a hot gas path component is disclosed. The cooling system may include a component layer and a cover layer. The component layer may include a first inner surface and a second outer surface. The second outer surface may define a plurality of channels. The component layer may further define a plurality of passages extending generally between the first inner surface and the second outer surface. Each of the plurality of channels may be fluidly connected to at least one of the plurality of passages. The cover layer may be situated adjacent the second outer surface of the component layer. The plurality of passages may be configured to flow a cooling medium to the plurality of channels and provide impingement cooling to the cover layer. The plurality of channels may be configured to flow cooling medium therethrough, cooling the cover layer.

Lacy, Benjamin Paul; Bunker, Ronald Scott; Itzel, Gary Michael

2014-02-18T23:59:59.000Z

314

Residual life prediction methods for gas turbine components  

Science Journals Connector (OSTI)

The use of fracture mechanics in predicting the life of turbine components is reviewed with emphasis on the surface crack and R ratio effects. Several examples of life methods development and verification are reported. The described methodology, which does not directly model crack-closure behavior, accurately predicts the growth of physically short surface cracks and situations where oxide- and roughness-induced closure are expected to occur.

R.H. Van Stone

1988-01-01T23:59:59.000Z

315

Survey for Safety Software Used in Design of Structures, Systems, and Components  

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

Design Software Survey September 2003 1 Design Software Survey September 2003 1 Survey of Safety Software Used in Design of Structures, Systems, and Components 1. Introduction The Department's Implementation Plan for Software Quality Assurance (SQA) that was developed in response to Defense Nuclear Facilities Safety Board Recommendation 2002-01, Quality Assurance for Safety-Related Software, includes a commitment (4.2.1.5) to conduct a survey of design codes currently in use to determine if any should be included as part of the toolbox codes. The toolbox codes are a small number of standard computer models (codes) supporting DOE safety analysis that have widespread use and appropriate qualification. Generally, the toolbox codes will have been developed and maintained within the DOE complex. However, the toolbox may also include

316

Reducing spread in climate model projections of a September ice-free Arctic  

Science Journals Connector (OSTI)

...15). Relative to the CMIP3, a more diverse set of model types is included in the CMIP5 (i.e., climate/Earth system models with more interactive components such as atmospheric chemistry, aerosols, dynamic vegetation, ice sheets, and...

Jiping Liu; Mirong Song; Radley M. Horton; Yongyun Hu

2013-01-01T23:59:59.000Z

317

Summary of Components of the "Best of the Region" Standard for New Non-Residential Buildings  

E-Print Network [OSTI]

Summary of Components of the "Best of the Region" Standard for New Non-Residential Buildings Specifications for Implementation of Fifth Power Plan Model Conservation Standards for New Commercial Buildings Adapted from: Northwest Energy NWBest Project Summary of Components of the "Best of the Region" Standard

318

Extension of the Fractal ADL for the Specification of Behaviours of Distributed Components  

E-Print Network [OSTI]

, and specification of control interfaces for dynamic management. Fractal defines a highly extensible component model}@nenya.ms.mff.cuni.cz 1 Introduction Inheriting from a long experience about modules, objects and interfaces, component which enforces separation of concerns, and separation between interfaces and implementation. The Fractal

319

Property:Component Integration | Open Energy Information  

Open Energy Info (EERE)

Component Integration Component Integration Jump to: navigation, search This is a property of type String. The allowed values for this property are: Customer Assembled Factory Integrated Pages using the property "Component Integration" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Customer Assembled + Distributed Generation Study/615 kW Waukesha Packaged System + Factory Integrated + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Customer Assembled + Distributed Generation Study/Arrow Linen + Customer Assembled + Distributed Generation Study/Dakota Station (Minnegasco) + Customer Assembled + Distributed Generation Study/Elgin Community College + Customer Assembled + Distributed Generation Study/Emerling Farm + Factory Integrated +

320

Automated Distributed Implementation of Component-based Models with Priorities  

E-Print Network [OSTI]

School of Computer Science University of Waterloo 200 University Avenue West Waterloo, Canada, N2L3G1.4 [Computer-Communication Networks]: Distributed Systems[Distributed applications] ; D.1.3 [Programming the European Community's Seventh Framework Pro- gramme [FP7/2007-2013] under grant agreement no 248776 (PRO3D

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "related model components" 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

Powder Metal Performance Modeling of Automotive Components ?AMD 410  

Broader source: Energy.gov [DOE]

Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

322

Computer Aided Design and Modeling of High Frequency Magnetic Components *  

E-Print Network [OSTI]

of converters and inverters in high fre- quency power electronics applications is always time and cost consuming University of Paderborn, FB 14 Power Electronics and Electrical Drives Pohlweg 47 33098 Paderborn, Germany Tel. : 0049/5251/603039 FAX : 0049/5251/603443 email: bbeckl@pblea.uni-paderborn.de Abstract A new

Paderborn, UniversitÀt

323

Friction Modeling for Lubricated Engine and Drivetrain Components  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

324

Precipitation-Front Modeling: Issues Relating to Nucleation and Metastable Precipitation in the Planned Nuclear Waste Repository at Yucca Mountain, Nevada  

E-Print Network [OSTI]

Mineralogic Model of Yucca Mountain, Nevada, Rev. 1. Reportfor fracture sealing at Yucca Mountain, Nevada. Journal ofWaste Repository at Yucca Mountain, Nevada J.A. Apps and

Apps, J.A.; Sonnenthal, E.L.

2004-01-01T23:59:59.000Z

325

Modeling  

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

a single-fluid diffuse interface model in the ALE-AMR hydrodynamics code to simulate surface tension effects. We show simula- tions and compare them to other surface tension...

326

Modeling  

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

sion effects. We show the result of a test case, and compare it to the result without surface tension. The model describes droplet formation nicely. Application The ARRA-funded...

327

Structural Automotive Components from Composite Materials | Department...  

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

Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. lm08kia.pdf More Documents & Publications Structural Automotive Components from Composite...

328

Knowledge Portals: Components, Functionalities, and Deployment Challenges  

E-Print Network [OSTI]

Knowledge Portals: Components, Functionalities, and Deployment Challenges Claudia Loebbecke University of Cologne Kevin Crowston Syracuse University School of Information Studies Abstract Knowledge Portals (KPs) are highly integrative Knowledge Management Systems (KMS) that promise to synthesize widely

Crowston, Kevin

329

Artificial Vision A vital component of  

E-Print Network [OSTI]

Artificial Vision A vital component of transhumanism #12;Machinehead · Merger of human and machine. · Transhumanism ­ Our design is flawed. · Blind spot · Blinking #12;Beyond the blind spot · Eventually plug

La Rosa, Andres H.

330

Data transmission element for downhole drilling components  

DOE Patents [OSTI]

A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT)

2006-01-31T23:59:59.000Z

331

Biodegradation of high-molecular-mass heteroatomic components of heavy oil  

Science Journals Connector (OSTI)

Microbial degradation of resins and asphaltenes by indigenous soil microflora has been studied under laboratory conditions on model soil systems. It has been shown that high-molecular-mass heteroatomic compone...

M. A. Kopytov; D. A. Filatov; L. K. Altunina

2014-01-01T23:59:59.000Z

332

hp-FEM for Two-component Flows with Applications in Optofluidics.  

E-Print Network [OSTI]

??This thesis is concerned with the application of hp-adaptive finite element methods to a mathematical model of immiscible two-component flows. With the aim of simulating… (more)

Ronnćs, Staffan

2012-01-01T23:59:59.000Z

333

Indigestible fiber components as possible internal markers  

E-Print Network [OSTI]

INDIGESTIBLE FIBER COMPONENTS AS POSSIBLE INZERNAL MARKERS A Thesis by BERNARD FREDERICK JACOBS Submitted to the Graduate College of Texas AQf University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August... 1975 Major Subject: Animal Nutrition INDIGESTIBLE FIBER COMPONENTS AS POSSIBLE INTERNAL MARKERS A Thesis by BERNARD FREDERICK JACOBS Approved as to style and content by: !, /, (Chairman of Committee) (Head of Depar ent) (Member) (Member...

Jacobs, Bernard Frederick

1975-01-01T23:59:59.000Z

334

Component of variance estimation based on synthesis  

E-Print Network [OSTI]

Component of Variance Estimation based on. Synthesis. (August lg (2) Jocelyn Anthea Tommerup, B. Sc. , B. Econ. , University of Queenslsnd Directed. by: Dr. H. 0. Hartley Analysis of variance, widely used in the study of statistical variation.... Essentially the problem is to find these coefficients so that, estimstes of the components may be computed. Hartley [1967] hss proposed a method which gives these coef'ficients directly for sry design, balanced of' unbalanced. It is the objective...

Tommerup, Jocelyn Anthea

2012-06-07T23:59:59.000Z

335

RDCDS Meteorologoical Component Quick Installation Guide  

SciTech Connect (OSTI)

This guide provides step-by-step instructions for the deployment of one of the Rapidly Deployable Chemical Defense System (RDCDS) weather stations and central control system. Instructions for the deployment and operation of the Atmospheric Systems Corporation miniSODAR™ (SOnic Detection and Ranging) can be found in accompanying manuals developed by Atmospheric Systems Corporation. A detailed description of the system and its components can be found in the manual entitled Description of the RDCDS Meteorological Component.

Berg, Larry K.; Pekour, Mikhail S.

2007-11-20T23:59:59.000Z

336

Method and apparatus for monitoring aircraft components  

DOE Patents [OSTI]

Operability of aircraft mechanical components is monitored by analyzing the voltage output of an electrical generator of the aircraft. Alternative generators, for a turbine-driven rotor aircraft, include the gas producer turbine tachometer generator, the power turbine tachometer generator, and the aircraft systems power producing starter/generator. Changes in the peak amplitudes of the fundamental frequency and its harmonics are correlated to changes in condition of the mechanical components.

Dickens, Larry M. (Oak Ridge, TN); Haynes, Howard D. (Knoxville, TN); Ayers, Curtis W. (Clinton, TN)

1996-01-01T23:59:59.000Z

337

Method and apparatus for monitoring aircraft components  

DOE Patents [OSTI]

Operability of aircraft mechanical components is monitored by analyzing the voltage output of an electrical generator of the aircraft. Alternative generators, for a turbine-driven rotor aircraft, include the gas producer turbine tachometer generator, the power turbine tachometer generator, and the aircraft systems power producing starter/generator. Changes in the peak amplitudes of the fundamental frequency and its harmonics are correlated to changes in condition of the mechanical components. 14 figs.

Dickens, L.M.; Haynes, H.D.; Ayers, C.W.

1996-01-16T23:59:59.000Z

338

An analysis of multiple component mooring lines  

E-Print Network [OSTI]

AN ANALYSIS OF MULTIPLE COMPONENT MOORING LINES A Thesis by THOMAS ROBERT NALTERS Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1977 Major...'595 ABSTRACT An Analysis Of Multiple Component Mooring Lines (December 1977) Thomas Robert Walters, B. E. , Vanderbilt University Co-Chai rman of Advisory Committee: Dr. Ts ung- Chow Su Co- Chai rman of Advisory Committee: Dr. Richard Domi nguez...

Walters, Thomas Robert

2012-06-07T23:59:59.000Z

339

Combustion synthesis of low exothermic component rich composites  

DOE Patents [OSTI]

A self-sustaining combustion synthesis process for producing hard, tough, lightweight, low exothermic potential product (LEPP)/high exothermic potential product (HEPP) composites is based on the thermodynamic dependence of adiabatic temperature and product composition on the stoichiometry of the LEPP and HEPP reactants. For lightweight products the composition must be relatively rich in the LEPP component. LEPP rich composites are obtained by varying the initial temperature of the reactants. The product is hard, porous material whose toughness can be enhanced by filling the pores with aluminum or other metal phases using a liquid metal infiltration process. The process can be extended to the formation of other composites having a low exothermic component.

Halverson, Danny C. (Modesto, CA); Lum, Beverly Y. (Livermore, CA); Munir, Zuhair A. (Davis, CA)

1991-01-01T23:59:59.000Z

340

Heterogeneous actor modeling  

Science Journals Connector (OSTI)

Complex systems demand diversity in the modeling mechanisms. This "roadmap" paper prescribes an approach to modeling based on concurrent communicating components actors), where a diversity of orchestration strategies govern the execution and interaction ... Keywords: heterogeneity, models of computation, ptolemy

Edward A. Lee

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

The effect of task structure, practice schedule, and model type on the learning of relative and absolute timing by physical and observational practice  

E-Print Network [OSTI]

Three experiments compared learning of relative and absolute timing of a sequential key-pressing task by physical and observational practice. Experiment 1 compared a task with a complex internal structure (goal proportions of 22.2, 44.4, 33...

Black, Charles Beyer

2004-11-15T23:59:59.000Z

342

Modeling  

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

ALE-AMR ALE-AMR code Wangyi Liu, John Bernard, Alex Friedman, Nathan Masters, Aaron Fisher, Velemir Mlaker, Alice Koniges, David Eder June 4, 2011 Abstract In this paper we describe an implementation of a single-fluid inter- face model in the ALE-AMR code to simulate surface tension effects. The model does not require explicit information on the physical state of the two phases. The only change to the existing fluid equations is an additional term in the stress tensor. We show results of applying the model to an expanding Al droplet surrounded by an Al vapor, where additional droplets are created. 1 Introduction The Neutralized Drift Compression Experiment II (NDCX II) is an induction accelerator planned for initial commissioning in 2012. The final design calls for a 3 MeV, Li+ ion beam, delivered in a bunch with characteristic pulse duration of 1 ns, and transverse dimension of order 1 mm. The

343

On Cipher-Dependent Related-Key Attacks in the Ideal-Cipher Model M.R. Albrecht1, P. Farshim2, K.G. Paterson2, and G.J. Watson3  

E-Print Network [OSTI]

On Cipher-Dependent Related-Key Attacks in the Ideal-Cipher Model M.R. Albrecht1, P. Farshim2, K.G. Paterson2, and G.J. Watson3 1 INRIA, Paris-Rocquencourt Center, SALSA Project UPMC Univ Paris 06, UMR 7606, Canada T2N 1N4 gjwatson@ucalgary.ca Abstract. Bellare and Kohno introduced a formal framework

344

Relational Database SQL: Querying the Relational DB  

E-Print Network [OSTI]

: auto-completion and command history Weigang Qiu Relational Database & SQL #12;Relational Database SQLRelational Database SQL: Querying the Relational DB Workshop: the "genome" Database Relational Database & SQL Weigang Qiu Department of Biological Sciences Hunter College BIOL 425 Computational

Qiu, Weigang

345

NREL: Learning - Advanced Vehicle Systems and Components  

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

Advanced Vehicle Systems and Components Advanced Vehicle Systems and Components Photo of a man checking out an advanced battery using testing equipment that includes a long metal tube on a table top. NREL's researchers test new batteries developed for hybrid electric vehicles. Credit: Warren Gretz Researchers and engineers at the NREL work closely with those in the automotive industry to develop new technologies, such as advanced batteries, for storing energy in cars, trucks, and buses. They also help to develop and test new technologies for using that energy more efficiently. And they work on finding new, energy-efficient ways to reduce the amount of fuel needed to heat and cool the interiors, or cabins, of vehicles. To help develop these new technologies, NREL's researchers are improving the efficiency of vehicle systems and components like these:

346

Component evaluation testing and analysis algorithms.  

SciTech Connect (OSTI)

The Ground-Based Monitoring R&E Component Evaluation project performs testing on the hardware components that make up Seismic and Infrasound monitoring systems. The majority of the testing is focused on the Digital Waveform Recorder (DWR), Seismic Sensor, and Infrasound Sensor. In order to guarantee consistency, traceability, and visibility into the results of the testing process, it is necessary to document the test and analysis procedures that are in place. Other reports document the testing procedures that are in place (Kromer, 2007). This document serves to provide a comprehensive overview of the analysis and the algorithms that are applied to the Component Evaluation testing. A brief summary of each test is included to provide the context for the analysis that is to be performed.

Hart, Darren M.; Merchant, Bion John

2011-10-01T23:59:59.000Z

347

Component external leakage and rupture frequency estimates  

SciTech Connect (OSTI)

In order to perform detailed internal flooding risk analyses of nuclear power plants, external leakage and rupture frequencies are needed for various types of components - piping, valves, pumps, flanges, and others. However, there appears to be no up-to-date, comprehensive source for such frequency estimates. This report attempts to fill that void. Based on a comprehensive search of Licensee Event Reports (LERs) contained in Nuclear Power Experience (NPE), and estimates of component populations and exposure times, component external leakage and rupture frequencies were generated. The remainder of this report covers the specifies of the NPE search for external leakage and rupture events, analysis of the data, a comparison with frequency estimates from other sources, and a discussion of the results.

Eide, S.A.; Khericha, S.T.; Calley, M.B.; Johnson, D.A.; Marteeny, M.L.

1991-11-01T23:59:59.000Z

348

MSTC - Microsystems Science, Technology, and Components - Contacts  

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

Contacts Contacts Microsystems Home Custom Microsystems Solutions Microsystems R&D Services Capabilities and Technologies Facilities Trusted Microsystems General Info About Us Awards Contacts Doing Business with Us Fact Sheets MESA News CONTACT US card file image ASIC Custom Solutions email: ASIC Custom Solutions Biological Microsensor Technologies Biosensors and Nanomaterials email: Biosensors and Nanomaterials Chemical Microsensors and Sensor Microsystems Chemical sensors and integrated sensor-based microsystems email: Chemical Microsensors and Sensor Microsystems Custom Components COTS, Capacitors, Magnetics, Cables and Interconnects email: Custom Components Failure Analysis Root Cause and Failure Analysis email: Failure Analysis Integrated Photonics Photonic Crystals, Nano Photonics, Micro Optics

349

Five-quark components in baryons  

E-Print Network [OSTI]

Evidence has been accumulating for the existence of significant intrinsic non-perturbative five-quark components in various baryons. The inclusion of the five-quark components gives a natural explanation of the excess of $\\bar d$ over $\\bar u$, significant quark orbital angular momentum in the proton, the problematic mass and decay pattern of the lowest $1/2^-$ baryon nonet, etc.. A breathing mode of $qqq\\leftrightarrow qqqq\\bar q$ is suggested for the lowest $1/2^-$ baryon octet. Evidence of a predicted member of the new scheme, $\\Sigma^*(1/2^-)$ around 1380 MeV, is introduced.

B. S. Zou

2010-01-07T23:59:59.000Z

350

Technique for Measuring Hybrid Electronic Component Reliability  

SciTech Connect (OSTI)

Materials compatibility studies of aged, engineered materials and hardware are critical to understanding and predicting component reliability, particularly for systems with extended stockpile life requirements. Nondestructive testing capabilities for component reliability would significantly enhance lifetime predictions. For example, if the detection of crack propagation through a solder joint can be demonstrated, this technique could be used to develop baseline information to statistically determine solder joint lifelengths. This report will investigate high frequency signal response techniques for nondestructively evaluating the electrical behavior of thick film hybrid transmission lines.

Green, C.C.; Hernandez, C.L.; Hosking, F.M.; Robinson, D.; Rutherford, B.; Uribe, F.

1999-01-01T23:59:59.000Z

351

Loaded Transducer Fpr Downhole Drilling Component  

DOE Patents [OSTI]

A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintains reliable connectivity between transmission elements, thereby providing an uninterrupted flow of information between drill string components. A transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe. To close gaps present between transmission elements, transmission elements may be biased with a "spring force," urging them closer together.

Hall, David R. (Provo, UT); Hall, H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

2005-07-05T23:59:59.000Z

352

Nuclear reactor spacer grid and ductless core component  

DOE Patents [OSTI]

The invention relates to a nuclear reactor spacer grid member for use in a liquid cooled nuclear reactor and to a ductless core component employing a plurality of these spacer grid members. The spacer grid member is of the egg-shell type and is constructed so that the walls of the cell members of the grid member are formed of a single thickness of metal to avoid tolerance problems. Within each cell member is a hydraulic spring which laterally constrains the nuclear material bearing rod which passes through each cell member against a hardstop in response to coolant flow through the cell member. This hydraulic spring is also suitable for use in a water cooled nuclear reactor. A core component constructed of, among other components, a plurality of these spacer grid members, avoids the use of a full length duct by providing spacer sleeves about the sodium tubes passing through the spacer grid members at locations between the grid members, thereby maintaining a predetermined space between adjacent grid members.

Christiansen, David W. (Kennewick, WA); Karnesky, Richard A. (Richland, WA)

1989-01-01T23:59:59.000Z

353

A Five-Component Magneto-Telluric Method In Geothermal Exploration- The  

Open Energy Info (EERE)

Five-Component Magneto-Telluric Method In Geothermal Exploration- The Five-Component Magneto-Telluric Method In Geothermal Exploration- The Mt-5-Ex Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Five-Component Magneto-Telluric Method In Geothermal Exploration- The Mt-5-Ex Details Activities (1) Areas (1) Regions (0) Abstract: The present paper describes a new method designed both at recording and processing levels for a practical solution of the overall problem of the Earth electromagnetism, in geophysics. Up to now, the random character of the natural signals prevented any measurement of reliable values of the phase shift between the various electromagnetic components at a given place. Hence it is impossible numerically to solve the general linear relations binding these components simply by using the processes of

354

Evaluation of SWAT streamflow components for  

E-Print Network [OSTI]

passes: forward, backward, forward, with a decreasing baseflow rate at each pass [Arnold et al. (1995 from physically based equations) A reliable simulation of streamflow components is an important step any reference to the underlying physical processes #12;Application of two separation techniques

355

Software reuse strategies and component markets  

Science Journals Connector (OSTI)

Black-box reuse with component markets could be the silver bullet solution that makes software reuse a reality, and advances software development to a robust industrial process---but only if market makers address the growing pains plaguing this immature ...

T. Ravichandran; Marcus A. Rothenberger

2003-08-01T23:59:59.000Z

356

SCADA architecture with mobile remote components  

Science Journals Connector (OSTI)

With the advent of new technologies, the demand of connecting IT systems to the Internet is increasing. This is also the case for Control systems specifically SCADA (Supervisory Control and Data Acquisition) systems. Traditional SCADA systems are connected ... Keywords: SCADA, control systems, mobility, remote components

Tai-Hoon Kim

2010-08-01T23:59:59.000Z

357

Architecture for SCADA with mobile remote components  

Science Journals Connector (OSTI)

With the advent of new technologies, the demand of connecting IT systems to the Internet is increasing. This is also the case for Control systems specifically SCADA (Supervisory Control And Data Acquisition) systems. Traditional SCADA systems are connected ... Keywords: SCADA, control systems, mobility, remote components

Rosslin John Robles; Tai-Hoon Kim

2010-05-01T23:59:59.000Z

358

Non-Negative Risk Components Jeremy Staum  

E-Print Network [OSTI]

. Depending on the purpose of risk attribution, it may or may not be acceptable to get negative riskNon-Negative Risk Components Jeremy Staum j-staum@northwestern.edu Department of Industrial the risk of a portfolio or system to its compo- nents, when it is required to produce non-negative risk

Staum, Jeremy

359

Integration of MEA Components-Status and Technology Gaps: A Stakeholders Perspective  

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

DOE Fuel Cell Pre-Solicitation Workshop DOE Fuel Cell Pre-Solicitation Workshop March 16-17, 2010 Denver, CO 3M Fuel Cell Components Program Mark Debe, Steve Hamrock, Radoslav Atanasoski, Pinar Serim, Eric Funkenbusch, Mike Yandrasits, Stan Garnsworthy and Customers Integration of MEA Components - Status and Technology Gaps - A Stakeholder's Perspective 2 Outline: 1. What does MEA integration mean? 2. Where the technology may be going with regard to 2015 3. Status and relative gaps for 2015 at the individual component level 4. Status and relative gaps for 2015 at the MEA integration level 5. Suggestions where DOE should concentrate its efforts in the near future 6. Other general suggestions and recommendations Integration of MEA Components 3M perspectives on technology development needs and gaps. 3M U.S. DOE Fuel Cell Pre-Solicitation Workshop Denver, CO, March 16-17, 2010

360

Magnetohydrodynamic projects at the CDIF (Component Development and Integration Facility)  

SciTech Connect (OSTI)

This quarterly technical progress report presents the tasks accomplished at the Component Development and Integration Facility during the fourth quarter of FY90. Areas of technical progress this quarter included: coal system development; seed system development; test bay modification; channel power dissipation and distribution system development; oxygen system storage upgrade; iron core magnet thermal protection system oxygen checkout; TRW slag rejector/CDIF slag removal project; stack gas/environmental compliance upgrade; coal-fired combustor support; 1A channels fabrication and assembly; support of Mississippi State University diagnostic testing; test operations and results; data enhancement; data analysis and modeling; technical papers; and projected activities. 2 tabs.

Not Available

1990-01-01T23:59:59.000Z

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


361

Beamline standard component designs for the Advanced Photon Source  

SciTech Connect (OSTI)

The Advanced Photon Source (APS) has initiated a design standardization and modularization activity for the APS synchrotron radiation beamline components. These standard components are included in components library, sub-components library and experimental station library. This paper briefly describes these standard components using both technical specifications and side view drawings.

Shu, D.; Barraza, J.; Brite, C.; Chang, J.; Sanchez, T.; Tcheskidov, V.; Kuzay, T.M.

1994-12-01T23:59:59.000Z

362

Validity of nonequilibrium work relations for the rapidly expanding quantum piston  

E-Print Network [OSTI]

Recent work by Teifel and Mahler [Eur. Phys. J. B 75, 275 (2010)] raises legitimate concerns regarding the validity of quantum nonequilibrium work relations in processes involving moving hard walls. We study this issue in the context of the rapidly expanding one-dimensional quantum piston. Utilizing exact solutions of the time-dependent Schrodinger equation, we ?nd that the evolution of the wave function can be decomposed into static and dynamic components, which have simple semiclassical interpretations in terms of particle-piston collisions. We show that nonequilibrium work relations remains valid at any ?nite piston speed, provided both components are included, and we study explicitly the work distribution for this model system.

H. T. Quan; Christopher Jarzynski

2011-12-25T23:59:59.000Z

363

Dynamic characterization of satellite components through non-invasive methods  

SciTech Connect (OSTI)

The rapid deployment of satellites is hindered by the need to flight-qualify their components and the resulting mechanical assembly. Conventional methods for qualification testing of satellite components are costly and time consuming. Furthermore, full-scale vehicles must be subjected to launch loads during testing. The harsh testing environment increases the risk of component damage during qualification. The focus of this research effort was to assess the performance of Structural Health Monitoring (SHM) techniques as replacement for traditional vibration testing. SHM techniques were applied on a small-scale structure representative of a responsive satellite. The test structure consisted of an extruded aluminum space-frame covered with aluminum shear plates, which was assembled using bolted joints. Multiple piezoelectric patches were bonded to the test structure and acted as combined actuators and sensors. Various methods of SHM were explored including impedance-based health monitoring, wave propagation, and conventional frequency response functions. Using these methods in conjunction with finite element modeling, the dynamic properties of the test structure were established and areas of potential damage were identified and localized. The adequacy of the results from each SHM method was validated by comparison to results from conventional vibration testing.

Mullens, Joshua G [Los Alamos National Laboratory; Wiest, Heather K [Los Alamos National Laboratory; Mascarenas, David D [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory

2011-01-24T23:59:59.000Z

364

Definition, Capabilities, and Components of a Terrestrial Carbon Monitoring System  

SciTech Connect (OSTI)

Research efforts for effectively and consistently monitoring terrestrial carbon are increasing in number. As such, there is a need to define carbon monitoring and how it relates to carbon cycle science and carbon management. There is also a need to identify intended capabilities of a carbon monitoring system and what system components are needed to develop the capabilities. This paper is intended to promote discussion on what capabilities are needed in a carbon monitoring system based on requirements for different areas of carbon-related research and, ultimately, for carbon management. While many methods exist to quantify different components of the carbon cycle, research is needed on how these methods can be coupled or integrated to obtain carbon stock and flux estimates regularly and at a resolution that enables attribution of carbon dynamics to respective sources. As society faces sustainability and climate change conerns, carbon management activities implemented to reduce carbon emissions or increase carbon stocks will become increasingly important. Carbon management requires moderate to high resolution monitoring. Therefore, if monitoring is intended to help inform management decisions, management priorities should be considered prior to development of a monitoring system.

West, Tristram O.; Brown, Molly E.; Duran, Riley M.; Ogle, Stephen; Moss, Richard H.

2013-08-08T23:59:59.000Z

365

Collection and analysis of component failure data from jet systems: neutral beam injectors and power supply  

Science Journals Connector (OSTI)

The objective of this ongoing activity is to develop a fusion specific component failure database with data coming from operating experiences gained in various fusion laboratories. The activity began in 2001 with the study of the Joint European Torus (JET) Vacuum and Active Gas Handling Systems. Two years later the neutral beam injectors (NBI) and the power supply (PS) systems were considered and since last year the ion cyclotron resonant heating system is under evaluation.The number of failures/malfunctions that have occurred during the years of operations, failure modes and, where possible, causes and consequences of the failures were identified, as well as the sets of components under analysis. Components were classified and counted in order to determine component counts by type of component, related total operating hours and related demands to operate (for components operating in an intermittent manner). Main reliability parameters (such as the failure rate and corresponding standard errors and confidence intervals) for the component types were also estimated. In this paper the NBI and PS results are presented.

T. Pinna; G. Cambi; F. Gravanti

2007-01-01T23:59:59.000Z

366

Model documentation renewable fuels module of the National Energy Modeling System  

SciTech Connect (OSTI)

This report documents the objectives, analytical approach, and design of the National Energy Modeling System (NEMS) Renewable Fuels Module (RFM) as it relates to the production of the 1997 Annual Energy Outlook forecasts. The report catalogues and describes modeling assumptions, computational methodologies, data inputs. and parameter estimation techniques. A number of offline analyses used in lieu of RFM modeling components are also described. This documentation report serves three purposes. First, it is a reference document for model analysts, model users, and the public interested in the construction and application of the RFM. Second, it meets the legal requirement of the Energy Information Administration (EIA) to provide adequate documentation in support of its models. Finally, such documentation facilitates continuity in EIA model development by providing information sufficient to perform model enhancements and data updates as part of EIA`s ongoing mission to provide analytical and forecasting information systems.

NONE

1997-04-01T23:59:59.000Z

367

CRAD, Nuclear Safety Component - June 29, 2011 | Department of...  

Office of Environmental Management (EM)

CRAD, Nuclear Safety Component - June 29, 2011 CRAD, Nuclear Safety Component - June 29, 2011 June 29, 2011 Nuclear Safety Component and Services Procurement (HSS CRAD 45-12, Rev....

368

Map algebra and model algebra for integrated model building  

Science Journals Connector (OSTI)

Computer models are important tools for the assessment of environmental systems. A seamless workflow of construction and coupling of model components is essential for environmental scientists. However, currently available software packages are often ... Keywords: Biomass-harvest model, Component-based modelling, PCRaster, Python, Spatio-temporal simulation

Oliver Schmitz; Derek Karssenberg; Kor De Jong; Jean-Luc De Kok; Steven M. De Jong

2013-10-01T23:59:59.000Z

369

Relation between premium of a CDS index and premiums of the index components  

E-Print Network [OSTI]

and investment and thanks to standardization by the International Swaps and Derivatives Association, CDS becomes risk (See e.g., Hull, 2000; Chaplin, 2005). It is a contract that provides protection against a default, the buyer of the CDS index contract pays premium in return for loss protection. If any name in the index

Walker, Michael B.

370

EFFECTS OF GEOMETRICAL AND MECHANICAL PROPERTIES OF VARIOUS COMPONENTS ON STRESSES OF THE SEALS IN SOFCS  

SciTech Connect (OSTI)

In this paper, numerical modeling was used to understand of the effect of the geometry and mechanical properties of various components in SOFCs on the level and distribution of stresses in the stack during operating and cooling. The results of these modeling analyses will help stack designers reduce high stresses in the seals of the stack so that structural failures are prevented and high stack mechanical reliability is achieved to meet technical targets. In general, it was found that the load carrying capacity of the cathode contact layer was advantageous for reducing the transmitted loads on the cell perimeter seal under operating environments of SOFCs, but the amount of reduction depends upon the relative stiffness values of the cell, interconnect, porous media, and support structures. Comparison of a fully bonded interface to a frictionless sliding interface resulted in 30-50% less transmitted load through the perimeter seal, with the greater reductions due to stiffer contact/media/interconnect structures. These results demonstrate that the mechanical contribution of the contact layer can be substantial and warrant design consideration

Liu, Wenning N.; Koeppel, Brian J.; Sun, Xin; Khaleel, Mohammad A.

2010-01-01T23:59:59.000Z

371

DDI and Relational Databases  

E-Print Network [OSTI]

will use Access for modelling some examples during the workshop It is not an ideal solution for DDI as the database engine is quite limited as it is not fully ANSI-SQL compliant In reality you should use a ‘real’ SQL engine like e.g. MySQL Postgre... versions of DDI (e.g. DDI-L 3.0, 3.1, 3.2) and ensuring application compatibility with the original standard DDI Applications Pros of relational databases in regards to DDI Structure is very good for rectangular files (e.g. SPSS or Stata) Easier...

Amin, Alerk; Barkow, Ingo

2013-04-04T23:59:59.000Z

372

From Multi-Component Gas Streams Opportunity  

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

Separation of CO Separation of CO 2 From Multi-Component Gas Streams Opportunity Research is active on the patent-pending technology, titled "Apparatus and Process for the Separation of Gases Using Supersonic Expansion and Oblique Shock Wave Compression." This technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory. Overview The separation of a gaseous mixture into constituent gases has proven to be useful for a variety of industrial and commercial applications. Currently CO 2 can be separated from multi- component gas streams using compression and refrigeration techniques in order to condense the CO 2 out of a vapor phase so that it can be mechanically separated from the stream.

373

Coatings for hot section gas turbine components  

Science Journals Connector (OSTI)

Components in the hot section of gas turbines are protected from the environment by oxidation-resistant coatings while thermal barrier coatings are applied to reduce the metal operating temperature of blades and vanes. The integrity of these protective coatings is an issue of major concern in current gas turbine designs. Premature cracking of the protective layer in oxidation-resistant coatings and of the interface in thermal barrier coating systems has become one of the life limiting factors of coated components in gas turbines. Following a brief overview of the state-of-the-art of coated material systems with respect to coating types and their status of application, the fracture mechanisms and mechanics of coated systems are presented and discussed.

J. Bressers; S. Peteves; M. Steen

2000-01-01T23:59:59.000Z

374

Advanced Materials for Lightweight Valve Train Components | Department...  

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

for Lightweight Valve Train Components Advanced Materials for Lightweight Valve Train Components Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review...

375

Durability of ACERT Engine Components | Department of Energy  

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

Washington D.C. pmp11lin.pdf More Documents & Publications Durability of ACERT Engine Components Durability of ACERT Engine Components Materials for Advanced Engine Valve Train...

376

Miracle Wind Power Components Manufacture Co Ltd | Open Energy...  

Open Energy Info (EERE)

Miracle Wind Power Components Manufacture Co Ltd Jump to: navigation, search Name: Miracle Wind Power Components Manufacture Co Ltd Place: Wuxi, Jiangsu Province, China Sector:...

377

New Design Methods and Algorithms for Multi-component Distillation...  

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

New Design Methods and Algorithms for Multi-component Distillation Processes New Design Methods and Algorithms for Multi-component Distillation Processes multicomponent.pdf More...

378

Cell Component Accelerated Stress Test Protocols for PEM Fuel...  

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

Cell Component Accelerated Stress Test Protocols for PEM Fuel Cells Cell Component Accelerated Stress Test Protocols for PEM Fuel Cells Accelerated Stress Test Protocols for PEM...

379

DOE Cell Component Accelerated Stress Test Protocols for PEM...  

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

Cell Component Accelerated Stress Test Protocols for PEM Fuel Cells DOE Cell Component Accelerated Stress Test Protocols for PEM Fuel Cells This document describes test protocols...

380

Magnesium Replacement of Aluminum Cast Components in a Production...  

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

Magnesium Replacement of Aluminum Cast Components in a Production V6 Engine to Effect Cost-Effective Mass Reduction Magnesium Replacement of Aluminum Cast Components in a...

Note: This page contains sample records for the topic "related model components" 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

Table 11.4 Electricity: Components of Onsite Generation, 2010...  

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

4 Electricity: Components of Onsite Generation, 2010; Level: National and Regional Data; Row: Values of Shipments and Employment Sizes; Column: Onsite-Generation Components; Unit:...

382

NREL: Hydrogen and Fuel Cells Research - Hydrogen System Component...  

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

other hydrogen system components. Reliable components are needed to ensure the success of hydrogen fueling stations and support the commercial deployment of fuel cell electric...

383

Fuel Cell Subsystems and Components | Department of Energy  

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

Fuel Cell Subsystems and Components Fuel Cell Subsystems and Components As recommended by the 2004 National Research Council report, the program continues to increase its support...

384

A Method For Eclipsing Component Identification In Large Photometric Datasets  

E-Print Network [OSTI]

We describe an automated method for assigning the most likely physical parameters to the components of an eclipsing binary (EB), using only its photometric light curve and combined color. In traditional methods (e.g. WD and EBOP) one attempts to optimize a multi-parameter model over many iterations, so as to minimize the chi-squared value. We suggest an alternative method, where one selects pairs of coeval stars from a set of theoretical stellar models, and compares their simulated light curves and combined colors with the observations. This approach greatly reduces the EB parameter-space over which one needs to search, and allows one to determine the components' masses, radii and absolute magnitudes, without spectroscopic data. We have implemented this method in an automated program using published theoretical isochrones and limb-darkening coefficients. Since it is easy to automate, this method lends itself to systematic analyses of datasets consisting of photometric time series of large numbers of stars, such as those produced by OGLE, MACHO, TrES, HAT, and many others surveys.

Jonathan Devor; David Charbonneau

2005-10-04T23:59:59.000Z

385

Data Transmission System For A Downhole Component  

DOE Patents [OSTI]

The invention is a system for transmitting data through a string of downhole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. Each component has a first and second end, with a first communication element located at the first end and a second communication element located at the second end. Each communication element includes a first contact and a second contact. The system also includes a coaxial cable running between the first and second communication elements, the coaxial cable having a conductive tube and a conductive core within it. The system also includes a first and second connector for connecting the first and second communication elements respectively to the coaxial cable. Each connector includes a conductive sleeve, lying concentrically within the conductive tube, which fits around and makes electrical contact with the conductive core. The conductive sleeve is electrically isolated from the conductive tube. The conductive sleeve of the first connector is in electrical contact with the first contact of the first communication element, the conductive sleeve of the second connector is in electrical contact with the first contact of the second communication element, and the conductive tube is in electrical contact with both the second contact of the first communication element and the second contact of the second communication element.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Fox, Joe (Spanish Fork, UT); Briscoe, Michael (Lehi, UT)

2005-01-18T23:59:59.000Z

386

1.2 - Chondrites and Their Components  

Science Journals Connector (OSTI)

Abstract Chondrites are extraordinary mixtures of materials with diverse origins that formed around other stars, in the solar nebula, and in their parent asteroids. Most chondrites were so severely altered by aqueous fluids, thermal metamorphism, and impacts that the original characteristics of their components have been largely erased. But a few pristine chondrites have preserved an exquisite mineralogical, chemical, isotopic, and chronological record of the first few million years of solar system history. The properties of diverse types of carbonaceous, ordinary, and enstatite chondrites focusing on the most pristine samples are reviewed to establish the chemical, isotopic, and mineralogical properties and origins of their components and to elucidate the asteroidal processes that modified them. Refractory inclusions – amoeboid olivine aggregates and Ca–Al-rich inclusions – were the first solids to form in the solar nebula near to the protosun. Chondrules and associated metallic Fe–Ni grains were still forming several million years later when the earliest planetesimals, which melted due to heat from 26Al decay, were colliding. In the least-altered chondrites, matrix material, which coats chondrules and other components, is largely composed of micrometer-sized silicates and amorphous materials, which formed at high temperatures, plus small amounts (up to 200 ppm) of presolar oxides and silicates.

E.R.D. Scott; A.N. Krot

2014-01-01T23:59:59.000Z

387

Shadow prediction model for the International Space Station Alpha  

SciTech Connect (OSTI)

A Fortran computer model, SHADOW5, was developed to predict shadows on the solar arrays of the International Space Station Alpha (ISSA) for general flight modes. This shadow model was incorporated into the EPSOP-F (Electrical Power System On-Orbit Performance) program to conduct ISSA power analyses for various operating conditions. This paper describes the mathematical methods of the model and shows the typical results predicted with the model. Vector analyses with coordinate transformations were used to trace the shadows between the potential shadowing and shadowed components of the station during the sun portion of the orbit. Including the space shuttle orbiter, 40 components were modeled. The basic shapes of the components were assumed to be either planar or cylindrical. The elemental areas obtained from the Cartesian grid lines allocated on the component surfaces were projected in the sun vector direction to reconstruct shadows on the shadowed planar surface. Comparison of predicted results with other models showed good agreement. Ease of preparing input data and relatively short CPU time make this model suitable for shadow analyses required for the many design and flight configurations of the space station.

Chung, D.K. [Rockwell International, Canoga Park, CA (United States). Rocketdyne Division

1995-12-31T23:59:59.000Z

388

Interaction of half-quantized vortices in two-component Bose-Einstein condensates  

SciTech Connect (OSTI)

We study the asymptotic interaction between two half-quantized vortices in two-component Bose-Einstein condensates. When two vortices in different components are placed at distance 2R, the leading order of the force between them is found to be (lnR/{xi}-1/2)/R{sup 3}, in contrast to 1/R between vortices placed in the same component. We derive it analytically using the Abrikosov ansatz and the profile functions of the vortices, confirmed numerically with the Gross-Pitaevskii model. We also find that the short-range cutoff of the intervortex potential linearly depends on the healing length.

Eto, Minoru [Department of Physics, Yamagata University, Yamagata 990-8560 (Japan); Kasamatsu, Kenichi [Department of Physics, Kinki University, Higashi-Osaka, 577-8502 (Japan); Nitta, Muneto [Department of Physics, and Research and Education Center for Natural Sciences, Keio University, Hiyoshi 4-1-1, Yokohama, Kanagawa 223-8521 (Japan); Takeuchi, Hiromitsu [Graduate School of Integrated Arts and Science, Hiroshima University, Kagamiyama, 1-7-1, Higashi Hiroshima, 739-8521 (Japan); Tsubota, Makoto [Department of Physics, Osaka City University, Sumiyoshi-Ku, Osaka 558-8585 (Japan)

2011-06-15T23:59:59.000Z

389

Interaction of half-quantized vortices in two-component Bose-Einstein condensates  

E-Print Network [OSTI]

We study the asymptotic interaction between two half-quantized vortices in two-component Bose-Einstein condensates. When two vortices in different components are placed at distance 2R, the leading order of the force between them is found to be (log R/\\xi-1/2)/R^3, in contrast to 1/R between vortices placed in the same component. We derive it analytically using the Abrikosov ansatz and the profile functions of the vortices, confirmed numerically with the Gross-Pitaevskii model. We also find that the short-range cutoff of the inter-vortex potential linearly depends on the healing length.

Minoru Eto; Kenichi Kasamatsu; Muneto Nitta; Hiromitsu Takeuchi; Makoto Tsubota

2011-03-31T23:59:59.000Z

390

Energy Spectrum of the Soft Component near Sea Level  

Science Journals Connector (OSTI)

An analysis of the transition curves of Carmichael and Steljes has been carried out to yield the transition curves in lead of ion-chamber bursts produced by cascades initiated by the electrons and photons of the soft component incident from the atmosphere. From the rates at the maxima of these transition curves, the absolute omnidirectional integral energy spectrum of the electrons and photons of the soft component at sea level, in the energy range from about 100 Mev to 100 Bev, is deduced. Incident electrons and photons associated with extensive air showers, as identified by coincidences with a nearby larger ion chamber, are excluded. An additional single experimental point on the integral spectrum (8.4Ś10-3 per sphere of unit area per sec) is obtained from the observed rate of electrons of all energies greater than 1 Mev which intersect the unshielded ion chamber. Since a quantitative relation from electromagnetic cascade theory is made use of in the derivation of the energy spectrum, and since this relation is at present uncertain for lead in the energy range involved, the possible error of the flux in the energy spectrum (±100%) is much larger than that of the observed rates of occurrence of bursts (±5%). In this respect the spectrum is preliminary only. In the energy range below 400 Mev the integral spectrum is in agreement with previous absolute measurements; below 2 Bev it is in conformity with a previous relative measurement; from 1.6 Bev to 100 Bev, where there are no previous determinations, it obeys a power law of exponent -2.00 and the rate for 1.6 Bev is 2.4Ś10-5 per sphere of unit area per sec.

Hugh Carmichael

1957-09-01T23:59:59.000Z

391

Multi-Domain Modeling  

Science Journals Connector (OSTI)

This chapter presents several multi-domain system models. Multi-domain models are characterized by the fact that they have components belonging to different engineering domains. In this chapter, we will see mo...

Michael Tiller Ph.D.

2001-01-01T23:59:59.000Z

392

Application of Improved Radiation Modeling to General Circulation Models  

SciTech Connect (OSTI)

This research has accomplished its primary objectives of developing accurate and efficient radiation codes, validating them with measurements and higher resolution models, and providing these advancements to the global modeling community to enhance the treatment of cloud and radiative processes in weather and climate prediction models. A critical component of this research has been the development of the longwave and shortwave broadband radiative transfer code for general circulation model (GCM) applications, RRTMG, which is based on the single-column reference code, RRTM, also developed at AER. RRTMG is a rigorously tested radiation model that retains a considerable level of accuracy relative to higher resolution models and measurements despite the performance enhancements that have made it possible to apply this radiation code successfully to global dynamical models. This model includes the radiative effects of all significant atmospheric gases, and it treats the absorption and scattering from liquid and ice clouds and aerosols. RRTMG also includes a statistical technique for representing small-scale cloud variability, such as cloud fraction and the vertical overlap of clouds, which has been shown to improve cloud radiative forcing in global models. This development approach has provided a direct link from observations to the enhanced radiative transfer provided by RRTMG for application to GCMs. Recent comparison of existing climate model radiation codes with high resolution models has documented the improved radiative forcing capability provided by RRTMG, especially at the surface, relative to other GCM radiation models. Due to its high accuracy, its connection to observations, and its computational efficiency, RRTMG has been implemented operationally in many national and international dynamical models to provide validated radiative transfer for improving weather forecasts and enhancing the prediction of global climate change.

Michael J Iacono

2011-04-07T23:59:59.000Z

393

Evaluating runoff simulations from the Community Land Model 4.0 using observations from flux towers and a mountainous watershed  

E-Print Network [OSTI]

Land Model (CLM) is the land component within the Community Earth System Model (CESM) (formerly known earth system model b

394

Inter-modelling with patterns  

Science Journals Connector (OSTI)

Inter-modelling is the activity of modelling relations between two or more modelling languages. The result of this activity is a model that describes the way in which model instances of these languages can be related. Many tasks in model-driven ... Keywords: Graph constraints, Graph transformation, Inter-modelling, Model matching, Model-to-model transformation, Traceability

Esther Guerra; Juan Lara; Fernando Orejas

2013-02-01T23:59:59.000Z

395

Automated Assessment of Polyethylene Wear in Cemented Acetabular Components using  

E-Print Network [OSTI]

Automated Assessment of Polyethylene Wear in Cemented Acetabular Components using Anteroposterior, Ninewells Hospital, Dundee, DD1 9SY, UK Abstract Polyethylene wear in the acetabular components of hip to the polyethylene acetabular component of a prosthesis so that both it and the metal femoral head component can

St Andrews, University of

396

Comparison of component frameworks for real-time embedded systems  

Science Journals Connector (OSTI)

The use of components significantly helps in development of real-time embedded systems. There have been a number of component frameworks developed for this purpose, and some of them have already became well established in this area. Even though these ... Keywords: Component frameworks, Component-based development, Real-time and embedded systems

TomᚠPop, Petr Hn?tynka, Petr Hošek, Michal Malohlava, TomᚠBureš

2014-07-01T23:59:59.000Z

397

MSTC - Microsystems Science, Technology, and Components - Trusted  

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

Trusted Microsystems Trusted Microsystems Microsystems Home Custom Microsystems Solutions Microsystems R&D Services Capabilities and Technologies Facilities Trusted Microsystems General Info About Us Awards Contacts Doing Business with Us Fact Sheets MESA News Trusted Microsystems for National Security Customers Trusted R&D Trusted Design Trusted Fabrication Trusted BEOL Trusted Custom Electronic Components Trusted Microsystems "Trusted Microsystems" encompasses the entire product development cycle. Sandia's Microsystems Center affords access to trusted people and facilities for research and development, design, layout, fabrication, characterization, packaging, and test. Trusted Design Secure design facility with disciplined and trusted design flow and methodologies Trusted Structured ASIC

398

RECLAMATION OF RADIOACTIVE MATERIAL PACKAGING COMPONENTS  

SciTech Connect (OSTI)

Radioactive material packages are withdrawn from use for various reasons; loss of mission, decertification, damage, replacement, etc. While the packages themselves may be decertified, various components may still be able to perform to their required standards and find useful service. The Packaging Technology and Pressurized Systems group of the Savannah River National Laboratory has been reducing the cost of producing new Type B Packagings by reclaiming, refurbishing, and returning to service the containment vessels from older decertified packagings. The program and its benefits are presented.

Abramczyk, G.; Nathan, S.; Loftin, B.; Bellamy, S.

2011-06-06T23:59:59.000Z

399

Alternative Fuels Data Center: Installation of Alternative Fuel Components  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Installation of Installation of Alternative Fuel Components in Vehicles to someone by E-mail Share Alternative Fuels Data Center: Installation of Alternative Fuel Components in Vehicles on Facebook Tweet about Alternative Fuels Data Center: Installation of Alternative Fuel Components in Vehicles on Twitter Bookmark Alternative Fuels Data Center: Installation of Alternative Fuel Components in Vehicles on Google Bookmark Alternative Fuels Data Center: Installation of Alternative Fuel Components in Vehicles on Delicious Rank Alternative Fuels Data Center: Installation of Alternative Fuel Components in Vehicles on Digg Find More places to share Alternative Fuels Data Center: Installation of Alternative Fuel Components in Vehicles on AddThis.com... More in this section... Federal

400

Defining food literacy and its components  

Science Journals Connector (OSTI)

Abstract Food literacy has emerged as a term to describe the everyday practicalities associated with healthy eating. The term is increasingly used in policy, practice, research and by the public; however, there is no shared understanding of its meaning. The purpose of this research was to develop a definition of food literacy which was informed by the identification of its components. This was considered from two perspectives: that of food experts which aimed to reflect the intention of existing policy and investment, and that of individuals, who could be considered experts in the everyday practicalities of food provisioning and consumption. Given that food literacy is likely to be highly contextual, this second study focused on disadvantaged young people living in an urban area who were responsible for feeding themselves. The Expert Study used a Delphi methodology (round one n = 43). The Young People’s Study used semi-structured, life-course interviews (n = 37). Constructivist Grounded Theory was used to analyse results. This included constant comparison of data within and between studies. From this, eleven components of food literacy were identified which fell into the domains of: planning and management; selection; preparation; and eating. These were used to develop a definition for the term “food literacy”.

Helen Anna Vidgen; Danielle Gallegos

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Anodizing of High Electrically Stressed Components  

SciTech Connect (OSTI)

Anodizing creates an aluminum oxide coating that penetrates into the surface as well as builds above the surface of aluminum creating a very hard ceramic-type coating with good dielectric properties. Over time and use, the electrical carrying components (or spools in this case) experience electrical breakdown, yielding undesirable x-ray dosages or failure. The spool is located in the high vacuum region of a rod pinch diode section of an x-ray producing machine. Machine operators have recorded decreases in x-ray dosages over numerous shots using the reusable spool component, and re-anodizing the interior surface of the spool does not provide the expected improvement. A machine operation subject matter expert coated the anodized surface with diffusion pump oil to eliminate electrical breakdown as a temporary fix. It is known that an anodized surface is very porous, and it is because of this porosity that the surface may trap air that becomes a catalyst for electrical breakdown. In this paper we present a solution of mitigating electrical breakdown by oiling. We will also present results of surface anodizing improvements achieved by surface finish preparation and surface sealing. We conclude that oiling the anodized surface and using anodized hot dip sealing processes will have similar results.

Flores, P. [NSTec; Henderson, D. J. [NSTec; Good, D. E. [NSTec; Hogge, K. [NSTec; Mitton, C. V. [NSTec; Molina, I. [NSTec; Naffziger, C. [NSTec; Codova, S. R. [SNL; Ormond, E. U. [SNL

2013-06-01T23:59:59.000Z

402

On the aerodynamic redistribution of chondrite components in protoplanetary disks  

E-Print Network [OSTI]

Despite being all roughly of solar composition, primitive meteorites (chondrites) present a diversity in their chemical, isotopic and petrographic properties, and in particular a first-order dichotomy between carbonaceous and non-carbonaceous chondrites. We investigate here analytically the dynamics of their components (chondrules, refractory inclusions, metal/sulfide and matrix grains) in protoplanetary disks prior to their incorporation in chondrite parent bodies. We find the dynamics of the solids, subject to gas drag, to be essentially controlled by the "gas-solid decoupling parameter" $S\\equiv \\textrm{St}/\\alpha$, the ratio of the dimensionless stopping time to the turbulence parameter. The decoupling of the solid particles relative to the gas is significant when $S$ exceeds unity. $S$ is expected to increase with time and heliocentric distance. On the basis of (i) abundance of refractory inclusions (ii) proportion of matrix (iii) lithophile element abundances and (iv) oxygen isotopic composition of chon...

Jacquet, Emmanuel; Fromang, Sébastien

2012-01-01T23:59:59.000Z

403

Correlation structure and principal components in global crude oil market  

E-Print Network [OSTI]

This article investigates the correlation structure of the global crude oil market using the daily returns of 71 oil price time series across the world from 1992 to 2012. We identify from the correlation matrix six clusters of time series exhibiting evident geographical traits, which supports Weiner's (1991) regionalization hypothesis of the global oil market. We find that intra-cluster pairs of time series are highly correlated while inter-cluster pairs have relatively low correlations. Principal component analysis shows that most eigenvalues of the correlation matrix locate outside the prediction of the random matrix theory and these deviating eigenvalues and their corresponding eigenvectors contain rich economic information. Specifically, the largest eigenvalue reflects a collective effect of the global market, other four largest eigenvalues possess a partitioning function to distinguish the six clusters, and the smallest eigenvalues highlight the pairs of time series with the largest correlation coefficie...

Dai, Yue-Hua; Jiang, Zhi-Qiang; Jiang, George J; Zhou, Wei-Xing

2014-01-01T23:59:59.000Z

404

Purification of polymorphic components of complex genomes  

DOE Patents [OSTI]

A method for processing related subject and reference macromolecule composed of complementary strand into their respective subject and reference populations of representative fragments and effectuating purification of unique polymorphic subject fragments. 1 fig.

Stodolsky, M.

1988-01-21T23:59:59.000Z

405

IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, VOL. 2, NO. 1, MARCH 2007 91 Nonintrusive Component Forensics of  

E-Print Network [OSTI]

the brand and model from which an image was captured. The results obtained from such component analysis sensor or which brand of sensors was used to acquire the image? What kinds of legitimate processing Component Forensics of Visual Sensors Using Output Images Ashwin Swaminathan, Student Member, IEEE, Min Wu

Liu, K. J. Ray

406

The Baryonic Tully Fisher Relation  

E-Print Network [OSTI]

We validate the baryonic Tully Fisher (BTF) relation by exploring the Tully Fish er (TF) and BTF properties of optically and HI-selected disk galaxies. The data includes galaxies from: Sakai et al. (2000) calibrator sample; McGaugh et al. (2000: MC2000) I-band sample; and 18 newly acquired HI-selected field dwarf galaxies observed with the ANU 2.3m telescope and the ATNF Parkes telescope from Gurovich's thesis sample (2005). As in MC2000, we re-cast the TF and BTF relations as relationships between baryo n mass and W_{20}. First we report some numerical errors in MC2000. Then, we c alculate weighted bi-variate linear fits to the data, and finally we compare the fits of the intrinsically fainter dwarfs with the brighter galaxies of Sakai et al. (2000). With regards to the local calibrator disk galaxies of Sakai et al. (2000), our results suggest that the BTF relation is indeed tighter than the T F relation and that the slopes of the BTF relations are statistically flatter th an the equivalent TF relations. Further, for the fainter galaxies which include the I-band MCG2000 and HI-selected galaxies of Gurovich's thesis sample, we calc ulate a break from a simple power law model because of what appears to be real c osmic scatter. Not withstanding this point, the BTF models are marginally better models than the equivalent TF ones with slightly smaller reduced chi^2.

Sebastian Gurovich; Stacy S. McGaugh; Ken C. Freeman; Helmut Jerjen; Lister Staveley-Smith; W. J. G. De Blok

2004-11-17T23:59:59.000Z

407

Fuel consumption model for FREFLO  

E-Print Network [OSTI]

above, Biggs and Akcelik (1985) proposed a model of the following form: f = fsito + &Pr + z[apr)o o (5) where, Po = total drag power P, = inertia power a = instantaneous acceleration 8, = fuel consumption per unit power 8, = fuel consumption per... that is additional to S, P, . This component is expressed as SzaP, , where &z is considered to be a secondary efficiency parameter that relates fuel to the product of inertia power and acceleration rate, for positive accelerations. This term allows for the effects...

Rao, Kethireddipalli Srinivas

1992-01-01T23:59:59.000Z

408

Evaluation of Sialon internal combustion engine components and fabrication of several ceramic components for automotive applications  

SciTech Connect (OSTI)

Fabrication development work was carried out on a push-rod tip having a stepped OD design and a 90{degree} shoulder in the transition area. Spray-dried Sialon premix was used in dry press tooling, and components were densified to about 98% of theoretical density using pressureless sintering conditions. Upon evaluation of the sintered components, it was found that afl components showed defects in the transition area. Modifications of the pressing parameters, incorporation of a 45{degree} angle in the shoulder area, and the use of tailored premix did not lead to the fabrication of defect-free parts. From these observations, it was concluded that the original part design could not easily be adapted to high-volume ceramic manufacturing methods. Subsequently, a modification to the desip was implemented. An SiC material with improved toughness (Hexoloy SX) was used for fabricating several test components with a closely machined, straight OD design. Pressureless-sintered and post-hot isostatically pressed (HIPed) Hexoloy SX components were supplied to The American Ceramic Engine Company (ACE) for assembly and testing. Fuel pump push-rod assemblies with Hemoloy SX tips were prepared by ACE, but no testing has been carried out to date.

McMurtry, C.H.; Ten Eyck, M.O.

1992-10-01T23:59:59.000Z

409

Evaluation of Sialon internal combustion engine components and fabrication of several ceramic components for automotive applications  

SciTech Connect (OSTI)

Fabrication development work was carried out on a push-rod tip having a stepped OD design and a 90[degree] shoulder in the transition area. Spray-dried Sialon premix was used in dry press tooling, and components were densified to about 98% of theoretical density using pressureless sintering conditions. Upon evaluation of the sintered components, it was found that afl components showed defects in the transition area. Modifications of the pressing parameters, incorporation of a 45[degree] angle in the shoulder area, and the use of tailored premix did not lead to the fabrication of defect-free parts. From these observations, it was concluded that the original part design could not easily be adapted to high-volume ceramic manufacturing methods. Subsequently, a modification to the desip was implemented. An SiC material with improved toughness (Hexoloy SX) was used for fabricating several test components with a closely machined, straight OD design. Pressureless-sintered and post-hot isostatically pressed (HIPed) Hexoloy SX components were supplied to The American Ceramic Engine Company (ACE) for assembly and testing. Fuel pump push-rod assemblies with Hemoloy SX tips were prepared by ACE, but no testing has been carried out to date.

McMurtry, C.H.; Ten Eyck, M.O.

1992-10-01T23:59:59.000Z

410

Automotive Component Measurements forAutomotive Component Measurements for Determining VehicleDetermining Vehicle--Level RadiatedLevel Radiated  

E-Print Network [OSTI]

1 Automotive Component Measurements forAutomotive Component Measurements for Determining VehicleDetermining Vehicle--Level RadiatedLevel Radiated Automotive Component Measurements forAutomotive ComponentEmissionsEmissionsEmissions Todd Hubing Mi h li P f f V hi l El t iMichelin Professor of Vehicular Electronics Clemson University

Stuart, Steven J.

411

RSE Table N8.1 and N8.2. Relative Standard Errors for Tables N8.1 and N8.2  

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

1 and N8.2. Relative Standard Errors for Tables N8.1 and N8.2;" 1 and N8.2. Relative Standard Errors for Tables N8.1 and N8.2;" " Unit: Percents." ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Selected","Wood and Other","Biomass","Components" ,,,,,,,"Coal Components",,,"Coke",,"Electricity","Components",,,,,,,,,,,,,"Natural Gas","Components",,"Steam","Components" ,,,,,,,,,,,,,,"Total",,,,,,,,,,,,,,,,,,,,,,,"Wood Residues" " "," "," ",,,,,"Bituminous",,,,,,"Electricity","Diesel Fuel",,,,,,"Motor",,,,,,,"Natural Gas",,,"Steam",,,," ",,,"and","Wood-Related",,," "

412

Wetland model in an earth systems modeling framework for regional environmental policy analysis  

E-Print Network [OSTI]

The objective of this research is to investigate incorporating a wetland component into a land energy and water fluxes model, the Community Land Model (CLM). CLM is the land fluxes component of the Integrated Global Systems ...

Awadalla, Sirein Salah

2011-01-01T23:59:59.000Z

413

NREL: Energy Analysis - Related Links  

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

Related Links Related Links Here you'll find links to other programs, organizations, and information resources concerning other analysis capabilities, energy-modeling, and technology expertise related to renewable energy. International Applications NREL's International Program in its effort to promote the use of renewable energy as a tool for sustainable development, applies world-class expertise in technology development and deployment, economic analysis, resource assessment, project design and implementation, and policy formulation. Assisting State and Local Governments Using renewable energy and being energy efficient is smart. Not only does it protect the environment, it benefits the economy. Many mayors, governors, city/county commissioners, state legislators, state energy

414

A relational model for temporal logic  

Science Journals Connector (OSTI)

......y; z (where the semicolon now denotes composition of single computations) such that both y and z are interesting. We now rede ne step to be the set of indivisible computations step def =; idle: This generalizes our earlier De nition (3.5) because......

B von Karger; R Berghammer

1998-03-01T23:59:59.000Z

415

Modelling macroeconomic flows related to large ensembles  

E-Print Network [OSTI]

, including, say, oil prices, interest rates, etc; dynamics of shares markets are governed by information are illustrated by flows of a liquid between interconnected reservoirs, where the heights of different reservoirs is changing with time, and movement of the liquid between the reservoirs is governed by gravity, see Figure 1

Schellekens, Michel P.

416

Energetic Components of Cooperative Protein Folding  

E-Print Network [OSTI]

A new lattice protein model with a four-helix bundle ground state is analyzed by a parameter-space Monte Carlo histogram technique to evaluate the effects of an extensive variety of model potentials on folding thermodynamics. Cooperative helical formation and contact energies based on a 5-letter alphabet are found to be insufficient to satisfy calorimetric and other experimental criteria for two-state folding. Such proteinlike behaviors are predicted, however, by models with polypeptide-like local conformational restrictions and environment-dependent hydrogen bonding-like interactions.

Huseyin Kaya; Hue Sun Chan

2000-10-11T23:59:59.000Z

417

Energetic Components of Cooperative Protein Folding  

Science Journals Connector (OSTI)

A new lattice protein model with a four-helix bundle ground state is analyzed by a parameter-space Monte Carlo histogram technique to evaluate the effects of an extensive variety of model potentials on folding thermodynamics. Cooperative helical formation and contact energies based on a 5-letter alphabet are found to be insufficient to satisfy calorimetric and other experimental criteria for two-state folding. Such proteinlike behaviors are predicted, however, by models with polypeptidelike local conformational restrictions and environment-dependent hydrogen-bondinglike interactions.

Hüseyin Kaya and Hue Sun Chan

2000-11-27T23:59:59.000Z

418

Non-destructive component separation using infrared radiant energy  

DOE Patents [OSTI]

A method for separating a first component and a second component from one another at an adhesive bond interface between the first component and second component. Typically the method involves irradiating the first component with infrared radiation from a source that radiates substantially only short wavelengths until the adhesive bond is destabilized, and then separating the first component and the second component from one another. In some embodiments an assembly of components to be debonded is placed inside an enclosure and the assembly is illuminated from an IR source that is external to the enclosure. In some embodiments an assembly of components to be debonded is simultaneously irradiated by a multi-planar array of IR sources. Often the IR radiation is unidirectional. In some embodiments the IR radiation is narrow-band short wavelength infrared radiation.

Simandl, Ronald F. (Knoxville, TN); Russell, Steven W. (Knoxville, TN); Holt, Jerrid S. (Knoxville, TN); Brown, John D. (Harriman, TN)

2011-03-01T23:59:59.000Z

419

MSTC - Microsystems Science, Technology, and Components  

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

Microsystems Microsystems Microsystems Home Custom Microsystems Solutions Microsystems R&D Services Capabilities and Technologies Facilities Trusted Microsystems General Info About Us Awards Contacts Doing Business with Us Fact Sheets MESA News MICROSYSTEMS SCIENCE, TECHNOLOGY & COMPONENTS Clear Latest MSTC News Ed Cole appointed Fellow by ASM International Researching new detectors for chemical, biological threats MESA fab streaming video MESAFab streaming video Get Adobe Flash player The concept of integrating more than one transistor on a single chip has had a profound and lasting impact on our society. From the first use in the Minuteman missile to the proliferation of consumer products today, microelectronic circuits have dramatically improved performance, functionality, and reliability, while reducing cost

420

Component failure data handbook. Technical evaluation report  

SciTech Connect (OSTI)

This report presents generic component failure rates that are used in reliability and risk studies of commercial nuclear power plants. The rates are computed using plant-specific data from published probabilistic risk assessments supplemented by selected other sources. Each data source is described. For rates with four or more separate estimates among the sources, plots show the data that are combined. The method for combining data from different sources is presented. The resulting aggregated rates are listed with upper bounds that reflect the variability observed in each rate across the nuclear power plant industry. Thus, the rates are generic. Both per hour and per demand rates are included. They may be used for screening in risk assessments or for forming distributions to be updated with plant-specific data.

Gentillon, C.D.

1991-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Thermal barrier coatings for turbine components  

DOE Patents [OSTI]

A turbine component, such as a turbine blade having a metal substrate (22) is coated with a metal MCrAlY alloy layer (24) and then a thermal barrier layer (20) selected from LaAlO.sub.3, NdAlO.sub.3, La.sub.2 Hf.sub.2 O.sub.7, Dy.sub.3 Al.sub.5 O.sub.12, HO.sub.3 Al.sub.3 O.sub.12, ErAlO.sub.3, GdAlO.sub.3, Yb.sub.2 Ti.sub.2 O.sub.7, LaYbO.sub.3, Gd.sub.2 Hf.sub.2 O.sub.7 or Y.sub.3 Al.sub.5 O.sub.12.

Subramanian, Ramesh (Oviedo, FL); Sabol, Stephen M. (Orlando, FL); Goedjen, John G. (Oviedo, FL); Sloan, Kelly M. (Bethesda, MD); Vance, Steven J. (Orlando, FL)

2002-01-01T23:59:59.000Z

422

Compound cooling flow turbulator for turbine component  

DOE Patents [OSTI]

Multi-scale turbulation features, including first turbulators (46, 48) on a cooling surface (44), and smaller turbulators (52, 54, 58, 62) on the first turbulators. The first turbulators may be formed between larger turbulators (50). The first turbulators may be alternating ridges (46) and valleys (48). The smaller turbulators may be concave surface features such as dimples (62) and grooves (54), and/or convex surface features such as bumps (58) and smaller ridges (52). An embodiment with convex turbulators (52, 58) in the valleys (48) and concave turbulators (54, 62) on the ridges (46) increases the cooling surface area, reduces boundary layer separation, avoids coolant shadowing and stagnation, and reduces component mass.

Lee, Ching-Pang; Jiang, Nan; Marra, John J; Rudolph, Ronald J

2014-11-25T23:59:59.000Z

423

Tritium Removal from Carbon Plasma Facing Components  

SciTech Connect (OSTI)

Tritium removal is a major unsolved development task for next-step devices with carbon plasma-facing components. The 2-3 order of magnitude increase in duty cycle and associated tritium accumulation rate in a next-step tokamak will place unprecedented demands on tritium removal technology. The associated technical risk can be mitigated only if suitable removal techniques are demonstrated on tokamaks before the construction of a next-step device. This article reviews the history of codeposition, the tritium experience of TFTR (Tokamak Fusion Test Reactor) and JET (Joint European Torus) and the tritium removal rate required to support ITER's planned operational schedule. The merits and shortcomings of various tritium removal techniques are discussed with particular emphasis on oxidation and laser surface heating.

C.H. Skinner; J.P. Coad; G. Federici

2003-11-24T23:59:59.000Z

424

Simulation of Prompt Emission from GRBs with a Photospheric Component and its Detectability By GLAST  

SciTech Connect (OSTI)

The prompt emission from gamma-ray bursts (GRBs) still requires a physical explanation. Studies of time-resolved GRB spectra, observed in the keV-MeV range, show that a hybrid model consisting of two components, a photospheric and a non-thermal component, in many cases fits bright, single-pulsed bursts as well as, and in some instances even better than, the Band function. With an energy coverage from 8 keV up to 300 GeV, GLAST will give us an unprecedented opportunity to further investigate the nature of the prompt emission. In particular, it will give us the possibility to determine whether a photospheric component is the determining feature of the spectrum or not. Here we present a short study of the ability of GLAST to detect such a photospheric component in the sub-MeV range for typical bursts, using simulation tools developed within the GLAST science collaboration.

Battelino, Milan; Ryde, Felix; /Stockholm Observ.; Omodei, Nicola; /INFN, Pisa; Longo, Francesco; /U. Trieste /INFN, Trieste

2011-11-29T23:59:59.000Z

425

Spectrophotometric analysis of the primary component of V 380 Cyg  

SciTech Connect (OSTI)

The curve-of-growth method and spectrograms obtained with the 6-m telescope were used to determine the parameters of the atmosphere of the primary component of the close binary system V 380 Cyg: T/sub e/ = 22,500/sup 0/K, log g = 3.4, V/sub t/ = 3.28 km/sec. The value of log g is confirmed by comparison of the observed profiles and the equivalent widths of the hydrogen lines with the theoretical results. The method of model atmospheres was used to determine the chemical composition. For the majority of elements, excesses of the abundances from 0.2 to 1.0 in the logarithm of the number of atoms were found; the helium abundance was found to be two times greater than the solar abundance, the calcium abundance 0.3 dex less than the solar value.

Leushin, V.V.; Topil'skaya, G.P.

1987-03-01T23:59:59.000Z

426

Plutonium Finishing Plant (PFP) HVAC System Component Index  

SciTech Connect (OSTI)

This document lists safety class (SC) and safety significant (SS) components for the Heating Ventilation Air Conditioning (HVAC) and specifies the critical characteristics for Commercial Grade Items (CGI), as required by HNF-PRO-268 and HNF-PRO-18 19. These are the minimum specifications that the equipment must meet in order to properly perform its safety function. There may be several manufacturers or models that meet the critical characteristics for any one item. The Plutonium Finishing Plant (PFP) HVAC System includes sub-systems 25A through 25K. Specific system boundaries and justifications are contained in HNF-SD-CP-SDD-005, ''Definition and Means of Maintaining the Ventilation System Confinement Portion of the PFP Safety Envelope.'' The procurement requirements associated with the system necessitates procurement of some system equipment as Commercial Grade Items in accordance with HNF-PRO-268, ''Control of Purchased Items and Services.''

DIAZ, E.N.

2000-03-30T23:59:59.000Z

427

Magnetohydrodynamic projects at the CDIF (Component Development and Integration Facility)  

SciTech Connect (OSTI)

This quarterly technical progress report presents the tasks accomplished at the Component Development and Integration Facility during the third quarter of FY90. Areas of technical progress this quarter included: coal system development; seed system development; test bay modification; channel power dissipation and distribution system development; integrated topping cycle/proof-of-concept current controls project; oxygen system storage upgrade; iron core magnet thermal protection system checkout; TRW slag rejector/CDIF slag removal project; stack gas/environmental compliance upgrade; coal-fired combustor support; 1A channels fabrication and assembly; support of Mississippi State University diagnostic testing; test operations and results; data enhancement; data analysis and modeling; technical papers; and projected activities. 2 tabs.

Not Available

1990-01-01T23:59:59.000Z

428

Kinetics of digestion f forage fiber components  

E-Print Network [OSTI]

dependency models (table 13) ~ TABLE 13. EMS ASSOCIATED FITN GROUND AND UNGHOUND LEAF' AND STEM NDE DIGESTIBIII IES Treatment Single exponen'cial !8odei Single exponential + iime delay Time dependenoy Leaf ground Leaf unground . 0238&7 . 028101... dependency models (table 13) ~ TABLE 13. EMS ASSOCIATED FITN GROUND AND UNGHOUND LEAF' AND STEM NDE DIGESTIBIII IES Treatment Single exponen'cial !8odei Single exponential + iime delay Time dependenoy Leaf ground Leaf unground . 0238&7 . 028101...

Van Hellen, Russell William

2012-06-07T23:59:59.000Z

429

Method and apparatus for component separation using microwave energy  

DOE Patents [OSTI]

A method for separating and recovering components includes the steps of providing at least a first component bonded to a second component by a microwave absorbent adhesive bonding material at a bonding area to form an assembly, the bonding material disposed between the components. Microwave energy is directly and selectively applied to the assembly so that substantially only the bonding material absorbs the microwave energy until the bonding material is at a debonding state. A separation force is applied while the bonding material is at the debonding state to permit disengaging and recovering the components. In addition, an apparatus for practicing the method includes holders for the components.

Morrow, Marvin S. (Kingston, TN); Schechter, Donald E. (Ten Mile, TN); Calhoun, Jr., Clyde L. (Knoxville, TN)

2001-04-03T23:59:59.000Z

430

Process management using component thermal-hydraulic function classes  

DOE Patents [OSTI]

A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced. 5 figs.

Morman, J.A.; Wei, T.Y.C.; Reifman, J.

1999-07-27T23:59:59.000Z

431

Process management using component thermal-hydraulic function classes  

DOE Patents [OSTI]

A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced.

Morman, James A. (Woodridge, IL); Wei, Thomas Y. C. (Downers Grove, IL); Reifman, Jaques (Western Springs, IL)

1999-01-01T23:59:59.000Z

432

The IRMIS object model and services API.  

SciTech Connect (OSTI)

The relational model developed for the Integrated Relational Model of Installed Systems (IRMIS) toolkit has been successfully used to capture the Advanced Photon Source (APS) control system software (EPICS process variables and their definitions). The relational tables are populated by a crawler script that parses each Input/Output Controller (IOC) start-up file when an IOC reboot is detected. User interaction is provided by a Java Swing application that acts as a desktop for viewing the process variable information. Mapping between the display objects and the relational tables was carried out with the Hibernate Object Relational Modeling (ORM) framework. Work is well underway at the APS to extend the relational modeling to include control system hardware. For this work, due in part to the complex user interaction required, the primary application development environment has shifted from the relational database view to the object oriented (Java) perspective. With this approach, the business logic is executed in Java rather than in SQL stored procedures. This paper describes the object model used to represent control system software, hardware, and interconnects in IRMIS. We also describe the services API used to encapsulate the required behaviors for creating and maintaining the complex data. In addition to the core schema and object model, many important concepts in IRMIS are captured by the services API. IRMIS is an ambitious collaborative effort for defining and developing a relational database and associated applications to comprehensively document the large and complex EPICS-based control systems of today's accelerators. The documentation effort includes process variables, control system hardware, and interconnections. The approach could also be used to document all components of the accelerator, including mechanical, vacuum, power supplies, etc. One key aspect of IRMIS is that it is a documentation framework, not a design and development tool. We do not generate EPICS control system configurations from IRMIS, and hence do not impose any additional requirements on EPICS developers.

Saunders, C.; Dohan, D. A.; Arnold, N. D.; Accelerator Systems Division (APS)

2005-01-01T23:59:59.000Z

433

Relative outcomes of climate change mitigation related to global  

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

Relative outcomes of climate change mitigation related to global Relative outcomes of climate change mitigation related to global temperature versus sea-level rise Submitted by mkaczmar on February 8, 2013 - 15:19 Authors: Gerald A. Meehl, Aixue Hu, Claudia Tebaldi, Julie M. Arblaster, Warren M. Washington, Haiyan Teng, Benjamin M. Sanderson, Toby Ault, Warren G. Strand & James B. White III There is a common perception that, if human societies make the significant adjustments necessary to substantively cut emissions of greenhouse gases, global temperature increases could be stabilized, and the most dangerous consequences of climate change could be avoided. Here we show results from global coupled climate model simulations with the new representative concentration pathway mitigation scenarios to 2300 to illustrate that, with

434

Modeling and optimization of building HVAC systems.  

E-Print Network [OSTI]

??This thesis presents the development of hybrid modeling methodologies for HVAC component static/steady-state models and dynamic/transient models, and the development and implementation of a model-based… (more)

Jin, Guang Yu.

2012-01-01T23:59:59.000Z

435

Collaborative study of GENIEfy Earth System Models using scripted database workflows in a Grid  

E-Print Network [OSTI]

algorithms complement the component framework to provide a comprehensive toolset for Earth system modelling

A. R. Price; Z. Jiao; I. I. Voutchkov; T. M. Lenton; G. Williams; D. J. Lunt; R. Marsh; P. J. Valdes; S. J. Cox; The Genie Team

436

Development of three-dimensional passive components for power electronics  

E-Print Network [OSTI]

As component and power densities have increased, printed circuit boards (PCBs) have taken on additional functionality including heatsinking and forming constituent parts of electrical components. PCBs are not well suited ...

Cantillon-Murphy, Pádraig J

2005-01-01T23:59:59.000Z

437

Feeding of Small Components Using the Surface Tension of Fluids  

Science Journals Connector (OSTI)

The feeding of components smaller than 1mm2 is a high challenge in an automated manufacturing line. The surface forces affecting these micro components are getting more important and cause problems when handled. ...

Matthias Burgard; Nabih Othman; Uwe Mai…

2014-01-01T23:59:59.000Z

438

AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC...  

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

AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC) AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC) Presentation from the U.S. DOE Office of Vehicle...

439

Authorization basis status report (miscellaneous TWRS facilities, tanks and components)  

SciTech Connect (OSTI)

This report presents the results of a systematic evaluation conducted to identify miscellaneous TWRS facilities, tanks and components with potential needed authorization basis upgrades. It provides the Authorization Basis upgrade plan for those miscellaneous TWRS facilities, tanks and components identified.

Stickney, R.G.

1998-04-29T23:59:59.000Z

440

Risk evaluation of green components to hazardous substance using FMEA and FAHP  

Science Journals Connector (OSTI)

This study utilized the failure modes and effects analysis (FMEA) to analyze the risks of green components in compliance with the European Union (EU) the Restriction of Hazardous Substance (RoHS) directive in the incoming quality control (IQC) stage, which is based on a case of an OEM/ODM electronic manufacturer in Taiwan. There are three indices of FMEA in this work: the occurrence (O) that can be learned from the testing report; the likelihood of being detected (D) that refers to the difficulty of detection; and severity (S) that can be quantified from the declaration statement and the frequency of green component used by project. The fuzzy analytic hierarchy process (FAHP) was applied to determine the relative weightings of four factors, then a green component risk priority number (GC-RPN) can be calculated for each one of the components, which are provided by the suppliers to identify and manage the risks that may be derived from them. Numerical results indicated that through the use of the proposed approach, the detected rate of the high risk green components can at least be improved to 20% while the GC-RPN is above 7, and the highest risk green components can be increased by 46.2% within the GC-RPN between 9 and 10.

Allen H. Hu; Chia-Wei Hsu; Tsai-Chi Kuo; Wei-Cheng Wu

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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

Effect of HVDC component enhancement on the overall system reliability performance  

SciTech Connect (OSTI)

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

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

1994-01-01T23:59:59.000Z

442

Understanding Causal Coherence Relations.  

E-Print Network [OSTI]

??The research reported in this dissertation focuses on the cognitive processes and representations involved in understanding causal coherence relations in text. Coherence relations are the… (more)

Mulder, G.

2008-01-01T23:59:59.000Z

443

Multi component Nanoparticle Based Lubricant Additive to Improve...  

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

More Documents & Publications Multi-component Nanoparticle Based Lubricant Additive to Improve Efficiency and Durability in Engines ITP Nanomanufacturing:...

444

Impact of Biodiesel on Fuel System Component Durability  

SciTech Connect (OSTI)

A study of the effects of biodiesel blends on fuel system components and the physical characteristics of elastomer materials.

Terry, B.

2005-09-01T23:59:59.000Z

445

Improving the Design Reliability of Petroleum Pipeline Components on Repair  

Science Journals Connector (OSTI)

Developments are considered that may appreciably improve the design reliability in the repair of petroleum pipeline components.

I. N. Karelin

446

DOSE RATES FROM NEUTRON ACTIVATION OF FUSION REACTOR COMPONENTS  

E-Print Network [OSTI]

NEUTRON ACTIVATION OF FUSION REACTOR C01WONENTS LawrenceNeutron Activation of Fusion Reactor Components Lawrence

Ruby, Lawrence

2014-01-01T23:59:59.000Z

447

Using CSP||B Components: Application to a Platoon of Vehicles  

E-Print Network [OSTI]

Using CSP||B Components: Application to a Platoon of Vehicles Samuel Colin1, Arnaud Lanoix1, Olga- tionalities and services. It is specified using the combination, named CSP B, of two well-known formal methods: formal methods, CSP||B, compositional modelling, specification, ver- ification, case study 1 Introduction

Paris-Sud XI, Université de

448

A vital component of modern manufacturing systems is the scheduling and control system, which determines com-  

E-Print Network [OSTI]

264 Abstract A vital component of modern manufacturing systems is the scheduling and control system" to the unexpected system changes. Keywords: Scheduling and Control, Simulation Methods and Models Introduction iterative simulation-based scheduling mechanisms for manufacturing systems that operate in dynamic

Kutanoglu, Erhan

449

Fault Diagnosis System for a Multilevel Inverter Using a Principal Component Neural Network Surin Khomfoi  

E-Print Network [OSTI]

Fault Diagnosis System for a Multilevel Inverter Using a Principal Component Neural Network Surin system in a multilevel-inverter using a compact neural network is proposed in this paper. It is difficult to diagnose a multilevel-inverter drive (MLID) system using a mathematical model because MLID systems consist

Tolbert, Leon M.

450

From principal component to direct coupling analysis of coevolution in proteins: Loweigenvalue modes are needed for  

E-Print Network [OSTI]

1 From principal component to direct coupling analysis of coevolution in proteins: Low the covariation of residues in mutliple-sequence alignments of homol- ogous proteins to extract functional by the statistical physics of disordered systems, we intro- duce the Hopfield-Potts model to naturally interpolate

Cocco, Simona

451

Making Automated Testing of Cloud Applications an Integral Component of PaaS  

E-Print Network [OSTI]

Making Automated Testing of Cloud Applications an Integral Component of PaaS Stefan Bucur Johannes application software stacks. While the platform-as-a-service (PaaS) model has streamlined ap- plication difficult. We argue that a modern PaaS offering should include a facility to thoroughly and automatically

Candea, George

452

" Row: NAICS Codes; Column: Electricity Components;"  

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

1. Electricity: Components of Net Demand, 1998;" 1. Electricity: Components of Net Demand, 1998;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," ",,,,,," " " "," ",,,,"Sales and","Net Demand","RSE" "NAICS"," ",,,"Total Onsite","Transfers","for","Row" "Code(a)","Subsector and Industry","Purchases","Transfers In(b)","Generation(c)","Offsite","Electricity(d)","Factors" ,,"Total United States"

453

" Row: NAICS Codes; Column: Electricity Components;"  

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

1 Electricity: Components of Net Demand, 2002;" 1 Electricity: Components of Net Demand, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," ",,,,,," " " "," ",,,"Total ","Sales and","Net Demand","RSE" "NAICS"," ",,"Transfers ","Onsite","Transfers","for","Row" "Code(a)","Subsector and Industry","Purchases"," In(b)","Generation(c)","Offsite","Electricity(d)","Factors" ,,"Total United States"

454

SoSAA: a framework for integrating components & agents  

Science Journals Connector (OSTI)

Modern computing systems require powerful software frameworks to ease their development and manage their complexity. These issues are addressed within both Component-Based Software Engineering and Agent-Oriented Software Engineering, although few integrated ... Keywords: agent oriented software engineering, agent programming toolkit, component based software engineering, component framework

Mauro Dragone; David Lillis; Rem Collier; G. M. P. O'Hare

2009-03-01T23:59:59.000Z

455

Standardization of Components, Products and Processes with Data Mining  

E-Print Network [OSTI]

1 Standardization of Components, Products and Processes with Data Mining Bruno AGARD DĂ©partement de databases. This paper discusses applications of data mining in standardization of components, products, and processes. Standardization of components is accomplished using association rules derived from customers

Kusiak, Andrew

456

A Component Framework for Telecare and Home Automation  

E-Print Network [OSTI]

A Component Framework for Telecare and Home Automation Claire Maternaghan and Kenneth J. Turner-the-shelf and novel components. Keywords ­ Component Framework, Home Automation, Service-Oriented Architecture required. Home automation allows users to interact with their home as a whole, and to have flexible control

Hammerton, James

457

A case study: demands on component-based development  

Science Journals Connector (OSTI)

Building software systems with reusable components brings many advantages. The development becomes more efficient, the realibility of the products is enhanced, and the maintenance requirement is significantly reduced. Designing, developing and maintaining ... Keywords: architecture, component-based development, development environment, reuse, standard components

Ivica Crnkovic; Magnus Larsson

2000-06-01T23:59:59.000Z

458

Robust volume calculations for Constructive Solid Geometry (CSG) components in Monte Carlo transport calculations  

SciTech Connect (OSTI)

In this paper we consider a new generalized algorithm for the efficient calculation of component object volumes given their equivalent constructive solid geometry (CSG) definition. The new method relies on domain decomposition to recursively subdivide the original component into smaller pieces with volumes that can be computed analytically or stochastically, if needed. Unlike simpler brute-force approaches, the proposed decomposition scheme is guaranteed to be robust and accurate to within a user-defined tolerance. The new algorithm is also fully general and can handle any valid CSG component definition, without the need for additional input from the user. The new technique has been specifically optimized to calculate volumes of component definitions commonly found in models used for Monte Carlo particle transport simulations for criticality safety and reactor analysis applications. However, the algorithm can be easily extended to any application which uses CSG representations for component objects. The paper provides a complete description of the novel volume calculation algorithm, along with a discussion of the conjectured error bounds on volumes calculated within the method. In addition, numerical results comparing the new algorithm with a standard stochastic volume calculation algorithm are presented for a series of problems spanning a range of representative component sizes and complexities. (authors)

Millman, D. L. [Dept. of Computer Science, Univ. of North Carolina at Chapel Hill (United States); Griesheimer, D. P.; Nease, B. R. [Bechtel Marine Propulsion Corporation, Bertis Atomic Power Laboratory (United States); Snoeyink, J. [Dept. of Computer Science, Univ. of North Carolina at Chapel Hill (United States)

2012-07-01T23:59:59.000Z

459

HTS component development for electric power applications  

SciTech Connect (OSTI)

This presentation covers the collaboration between Intermagnetics General Corporation (IGC) and U.S. DOE laboratories such as the Argonnne National Lab, Oak Ridge National Lab, and the DOE/Superconductivity Partnership Initiative (DOE/SPI); along with informal collaboration with six other government research facilities. Being developed is applications for superconductors related to electric power, such as generators, motors, transmisssion cable, fault current limiter, and transformers. Highlighted are the critical current densities of short and long tapes at 77K; material and labor costs for Bi-2223 tapes; structural and performance specifications for a HTS magnet; and an overview of the the DOE/SPI program with plans for future work.

Haldar, P.

1994-07-29T23:59:59.000Z

460

Rheological Model for Wood  

E-Print Network [OSTI]

Wood as the most important natural and renewable building material plays an important role in the construction sector. Nevertheless, its hygroscopic character basically affects all related mechanical properties leading to degradation of material stiffness and strength over the service life. Accordingly, to attain reliable design of the timber structures, the influence of moisture evolution and the role of time- and moisture-dependent behaviors have to be taken into account. For this purpose, in the current study a 3D orthotropic elasto-plastic, visco-elastic, mechano-sorptive constitutive model for wood, with all material constants being defined as a function of moisture content, is presented. The corresponding numerical integration approach, with additive decomposition of the total strain is developed and implemented within the framework of the finite element method (FEM). Moreover to preserve a quadratic rate of asymptotic convergence the consistent tangent operator for the whole model is derived. Functionality and capability of the presented material model are evaluated by performing several numerical verification simulations of wood components under different combinations of mechanical loading and moisture variation. Additionally, the flexibility and universality of the introduced model to predict the mechanical behavior of different species are demonstrated by the analysis of a hybrid wood element. Furthermore, the proposed numerical approach is validated by comparisons of computational evaluations with experimental results.

Mohammad Masoud Hassani; Falk K. Wittel; Stefan Hering; Hans J. Herrmann

2014-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "related model components" 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.


462

Gearbox Reliability Collaborative: Test and Model Investigation of Sun Orbit and Planet Load Share in a Wind Turbine Gearbox; Preprint  

SciTech Connect (OSTI)

This paper analyzes experimental measurement of the sun gear orbit in dynamometer testing and describes its relation to the other measured responses of the planetary stage. The relation of the sun orbit to component runout, component flexibility, gear coupling alignment, planet load share, and planet position error will be investigated. Equations describing the orbit of the sun gear in the test cases are derived. Rigid and flexible multibody models of the full gearbox are investigated and compared to sun and planet measurements. This paper shows that the sun gear's path may be influenced by gear coupling responses and gearbox structural flexibilities.

LaCava, W.; Keller, J.; McNiff, B.

2012-04-01T23:59:59.000Z

463

Local-Level Prognostics Health Management Systems Framework for Passive AdvSMR Components – Interim Report  

SciTech Connect (OSTI)

This report describes research results to date in support of the integration and demonstration of diagnostics technologies for prototypical AdvSMR passive components (to establish condition indices for monitoring) with model-based prognostics methods. The focus of the PHM methodology and algorithm development in this study is at the localized scale. Multiple localized measurements of material condition (using advanced nondestructive measurement methods), along with available measurements of the stressor environment, enhance the performance of localized diagnostics and prognostics of passive AdvSMR components and systems.

Ramuhalli, Pradeep; Roy, Surajit; Hirt, Evelyn H.; Pardini, Allan F.; Jones, Anthony M.; Deibler, John E.; Pitman, Stan G.; Tucker, Joseph C.; Prowant, Matthew S.; Suter, Jonathan D.

2014-09-12T23:59:59.000Z

464

Advanced BWR core component designs and the implications for SFD analysis  

SciTech Connect (OSTI)

Prior to the DF-4 boiling water reactor (BWR) severe fuel damage (SFD) experiment conducted at the Sandia National Laboratories in 1986, no experimental data base existed for guidance in modeling core component behavior under postulated severe accident conditions in commercial BWRs. This paper will present the lessons learned from the DF-4 experiment (and subsequent German CORA BWR SFD tests) and the impact on core models in the current generation of SFD codes. The DF-4 and CORA BWR test assemblies were modeled on the core component designs circa 1985; that is, the 8 x 8 fuel assembly with two water rods and a cruciform control blade constructed of B{sub 4}C-filled tubelets. Within the past ten years, the state-of-the-art with respect to BWR core component development has out-distanced the current SFD experimental data base and SFD code capabilities. For example, modern BWR control blade design includes hafnium at the tips and top of each control blade wing for longer blade operating lifetimes; also water rods have been replaced by larger water channels for better neutronics economy; and fuel assemblies now contain partial-length fuel rods, again for better neutronics economy. This paper will also discuss the implications of these advanced fuel assembly and core component designs on severe accident progression and on the current SFD code capabilities.

Ott, L.J.

1997-02-01T23:59:59.000Z

465

Concentrating Solar Power Ă?ÂąĂ?Â?Ă?Â? Central Receiver Panel Component Fabrication and Testing FINAL REPORT  

SciTech Connect (OSTI)

The objective of this project is to complete a design of an advanced concentrated solar panel and demonstrate the manufacturability of key components. Then confirm the operation of the key components under prototypic solar flux conditions. This work is an important step in reducing the levelized cost of energy (LCOE) from a central receiver solar power plant. The key technical risk to building larger power towers is building the larger receiver systems. Therefore, this proposed technology project includes the design of an advanced molten salt prototypic sub-scale receiver panel that can be utilized into a large receiver system. Then complete the fabrication and testing of key components of the receive design that will be used to validate the design. This project shall have a significant impact on solar thermal power plant design. Receiver panels of suitable size for utility scale plants are a key element to a solar power tower plant. Many subtle and complex manufacturing processes are involved in producing a reliable, robust receiver panel. Given the substantial size difference between receiver panels manufactured in the past and those needed for large plant designs, the manufacture and demonstration on prototype receiver panel components with representative features of a full-sized panel will be important to improving the build process for commercial success. Given the thermal flux limitations of the test facility, the panel components cannot be rendered full size. Significance changes occurred in the projects technical strategies from project initiation to the accomplishments described herein. The initial strategy was to define cost improvements for the receiver, design and build a scale prototype receiver and test, on sun, with a molten salt heat transport system. DOE had committed to constructing a molten salt heat transport loop to support receiver testing at the top of the NSTTF tower. Because of funding constraints this did not happen. A subsequent plan to test scale prototype receiver, off sun but at temperature, at a molten salt loop at ground level adjacent to the tower also had to be abandoned. Thus, no test facility existed for a molten salt receiver test. As a result, PWR completed the prototype receiver design and then fabricated key components for testing instead of fabricating the complete prototype receiver. A number of innovative design ideas have been developed. Key features of the receiver panel have been identified. This evaluation includes input from Solar 2, personal experience of people working on these programs and meetings with Sandia. Key components of the receiver design and key processes used to fabricate a receiver have been selected for further evaluation. The Test Plan, Concentrated Solar Power Receiver In Cooperation with the Department of Energy and Sandia National Laboratory was written to define the scope of the testing to be completed as well as to provide details related to the hardware, instrumentation, and data acquisition. The document contains a list of test objectives, a test matrix, and an associated test box showing the operating points to be tested. Test Objectives: 1. Demonstrate low-cost manufacturability 2. Demonstrate robustness of two different tube base materials 3. Collect temperature data during on sun operation 4. Demonstrate long term repeated daily operation of heat shields 5. Complete pinhole tube weld repairs 6. Anchor thermal models This report discusses the tests performed, the results, and implications for design improvements and LCOE reduction.

McDowell, Michael W [Pratt & Whitney Rocketdyne; Miner, Kris [Pratt & Whitney Rocketdyne

2013-03-30T23:59:59.000Z

466

Parallel, Multigrid Finite Element Simulator for Fractured/Faulted and Other Complex Reservoirs based on Common Component Architecture (CCA)  

SciTech Connect (OSTI)

Black-oil, compositional and thermal simulators have been developed to address different physical processes in reservoir simulation. A number of different types of discretization methods have also been proposed to address issues related to representing the complex reservoir geometry. These methods are more significant for fractured reservoirs where the geometry can be particularly challenging. In this project, a general modular framework for reservoir simulation was developed, wherein the physical models were efficiently decoupled from the discretization methods. This made it possible to couple any discretization method with different physical models. Oil characterization methods are becoming increasingly sophisticated, and it is possible to construct geologically constrained models of faulted/fractured reservoirs. Discrete Fracture Network (DFN) simulation provides the option of performing multiphase calculations on spatially explicit, geologically feasible fracture sets. Multiphase DFN simulations of and sensitivity studies on a wide variety of fracture networks created using fracture creation/simulation programs was undertaken in the first part of this project. This involved creating interfaces to seamlessly convert the fracture characterization information into simulator input, grid the complex geometry, perform the simulations, and analyze and visualize results. Benchmarking and comparison with conventional simulators was also a component of this work. After demonstration of the fact that multiphase simulations can be carried out on complex fracture networks, quantitative effects of the heterogeneity of fracture properties were evaluated. Reservoirs are populated with fractures of several different scales and properties. A multiscale fracture modeling study was undertaken and the effects of heterogeneity and storage on water displacement dynamics in fractured basements were investigated. In gravity-dominated systems, more oil could be recovered at a given pore volume of injection at lower rates. However, if oil production can be continued at high water cuts, the discounted cumulative production usually favors higher production rates. The workflow developed during the project was also used to perform multiphase simulations in heterogeneous, fracture-matrix systems. Compositional and thermal-compositional simulators were developed for fractured reservoirs using the generalized framework. The thermal-compositional simulator was based on a novel 'equation-alignment' approach that helped choose the correct variables to solve depending on the number of phases present and the prescribed component partitioning. The simulators were used in steamflooding and in insitu combustion applications. The framework was constructed to be inherently parallel. The partitioning routines employed in the framework allowed generalized partitioning on highly complex fractured reservoirs and in instances when wells (incorporated in these models as line sources) were divided between two or more processors.

Milind Deo; Chung-Kan Huang; Huabing Wang

2008-08-31T23:59:59.000Z

467

The analysis of mixtures: Application of principal component analysis to XAS spectra  

SciTech Connect (OSTI)

Many samples which are subjected to XAS analysis contain the element of interest in more than one chemical form. The interpretation of the spectras from such samples is often not straightforward, particularly if appropriate model systems are not available. We have applied principal component analysis (PCA) to real and simulated systems which contain mixtures of several species for a given element PCA has been extensively used for the analysis of other types of spectra, including MS, IR and UV-VIS. The application of PCA to XAS is illustrated by examining the speciation of iron within coals. PCA can determine how many different species that contain a particular element are present in a series of spectra. In tandem with model compounds, principal component analysis can suggest which of the models may contribute to the observed XAS spectra.

Wasserman, S.R.

1996-10-01T23:59:59.000Z

468

Cortical pitch response components index stimulus onset/offset and dynamic features of pitch contours  

Science Journals Connector (OSTI)

Abstract Voice pitch is an important information-bearing component of language that is subject to experience dependent plasticity at both early cortical and subcortical stages of processing. We have already demonstrated that pitch onset component (Na) of the cortical pitch response (CPR) is sensitive to flat pitch and its salience. In regards to dynamic pitch, we do not yet know whether the multiple pitch-related transient components of the CPR reflect specific temporal attributes of such stimuli. Here we examine the sensitivity of the multiple transient components of CPR to changes in pitch acceleration associated with the Mandarin high rising lexical tone. CPR responses from Chinese listeners were elicited by three citation forms varying in pitch acceleration and duration. Results showed that the pitch onset component (Na) was invariant to changes in acceleration. In contrast, Na–Pb and Pb–Nb showed a systematic increase in the interpeak latency and decrease in amplitude with increase in pitch acceleration that followed the time course of pitch change across the three stimuli. A strong correlation with pitch acceleration was observed for these two components only – a putative index of pitch-relevant neural activity associated with the more rapidly-changing portions of the pitch contour. Pc–Nc marks unambiguously the stimulus offset. We therefore propose that in the early stages of cortical sensory processing, a series of neural markers flag different temporal attributes of a dynamic pitch contour: onset of temporal regularity (Na); changes in temporal regularity between onset and offset (Na–Pb, Pb–Nb); and offset of temporal regularity (Pc–Nc). At the temporal electrode sites, the stimulus with the most gradual change in pitch acceleration evoked a rightward asymmetry. Yet within the left hemisphere, stimuli with more gradual change were indistinguishable. These findings highlight the emergence of early hemispheric preferences and their functional roles as related to sensory and cognitive properties of the stimulus.

Ananthanarayan Krishnan; Jackson T. Gandour; Saradha Ananthakrishnan; Venkatakrishnan Vijayaraghavan

2014-01-01T23:59:59.000Z

469

Stochastic modeling and visualization of a tortilla chip  

E-Print Network [OSTI]

Monte Carlo simulation was used as an alternative technique and stochastically modeled component distribution in a tortilla chip. The components included oil, water, gas and solids. A conditional percolation approach was used to model pore size...

Rajkumar, Vinodkumar

2012-06-07T23:59:59.000Z

470

RSE Table 7.3 Relative Standard Errors for Table 7.3  

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

3 Relative Standard Errors for Table 7.3;" 3 Relative Standard Errors for Table 7.3;" " Unit: Percents." ,,,"Electricity","Components",,"Natural Gas","Components",,"Steam","Components" " "," ",,,"Electricity",,,"Natural Gas",,,"Steam",," " " "," ",,"Electricity","from Sources",,"Natural Gas","from Sources",,"Steam","from Sources" " "," ","Electricity","from Local","Other than","Natural Gas","from Local","Other than","Steam","from Local","Other than"

471

RSE Table 7.7 Relative Standard Errors for Table 7.7  

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

7 Relative Standard Errors for Table 7.7;" 7 Relative Standard Errors for Table 7.7;" " Unit: Percents." ,,,"Electricity","Components",,"Natural Gas","Components",,"Steam","Components" " "," ",,,,,,,,,,," " " "," ",,,"Electricity",,,"Natural Gas",,,"Steam" " "," ",,"Electricity","from Sources",,"Natural Gas","from Sources",,"Steam","from Sources" "NAICS"," ","Electricity","from Local","Other than","Natural Gas","from Local","Other than","Steam","from Local","Other than"

472

Health-exposure modeling and the ecological fallacy  

Science Journals Connector (OSTI)

......components of (3.8) (the health and exposure models) takes an...computation of the exposure and health models, but is dangerous since the errors-in-variables...three-stage model: Stage 1, Health model. Stage 2, Exposure model......

Jon Wakefield; Gavin Shaddick

2006-07-01T23:59:59.000Z

473

A scalable and adaptable solution framework within components of the CCSM  

SciTech Connect (OSTI)

A framework for a fully implicit solution method is implemented into (1) the High Order Methods Modeling Environment (HOMME), which is a spectral element dynamical core option in the Community Atmosphere Model (CAM), and (2) the Parallel Ocean Program (POP) model of the global ocean. Both of these models are components of the Community Climate System Model (CCSM). HOMME is a development version of CAM and provides a scalable alternative when run with an explicit time integrator. However, it suffers the typical time step size limit to maintain stability. POP uses a time-split semi-implicit time integrator that allows larger time steps but less accuracy when used with scale interacting physics. A fully implicit solution framework allows larger time step sizes and additional climate analysis capability such as model steady state and spin-up efficiency gains without a loss in scalability. This framework is implemented into HOMME and POP using a new Fortran interface to the Trilinos solver library, ForTrilinos, which leverages several new capabilities in the current Fortran standard to maximize robustness and speed. The ForTrilinos solution template was also designed for interchangeability; other solution methods and capability improvements can be more easily implemented into the models as they are developed without severely interacting with the code structure. The utility of this approach is illustrated with a test case for each of the climate component models.

Evans, Katherine J [ORNL; Rouson, Damian [Sandia National Laboratories (SNL); Salinger, Andy [Sandia National Laboratories (SNL); Taylor, Mark [Sandia National Laboratories (SNL); White III, James B [ORNL; Weijer, Wilbert [Los Alamos National Laboratory (LANL)

2009-01-01T23:59:59.000Z

474

Fire Protection Related Sites  

Broader source: Energy.gov [DOE]

Fire Protection related sites for Department of Energy, Non-DOE Government and Non-Government information.

475

A knowledge-based component library for high-level computer vision tasks  

Science Journals Connector (OSTI)

Abstract Computer vision is an interdisciplinary field that includes methods for acquiring, processing, analyzing, and understanding visual information. In computer vision, usually the approaches to solve problems are specific-application methods and, therefore, reusing captured knowledge in computer vision is hard. However, the aim of knowledge modeling (KM) is to capture and reuse knowledge to solve different problems. In this paper, we propose a knowledge-based component library for computer vision tasks such as video surveillance applications. The developed components are based on the region of interest (ROI) a well-known concept in the image processing and computer vision fields. We provide a set of reusable components that are specializations and/or compositions of ROIs. Finally, we propose several case studies that illustrate the feasibility of the proposal. Experimental results show that the proposed method deals effectively and efficiently with real-life computer vision problems.

D. Fernández-López; R. Cabido; A. Sierra-Alonso; A.S. Montemayor; J.J. Pantrigo

2014-01-01T23:59:59.000Z

476

Modeling, Estimation, and Control of Waste Heat Recovery Systems  

E-Print Network [OSTI]

Expander Models The components that generate power from steam expansion can be classified into two categories: turbo-

Luong, David

2013-01-01T23:59:59.000Z

477

Data Collection for Current U.S. Wind Energy Projects: Component Costs, Financing, Operations, and Maintenance; January 2011 - September 2011  

SciTech Connect (OSTI)

DNV Renewables (USA) Inc. (DNV) used an Operations and Maintenance (O&M) Cost Model to evaluate ten distinct cost scenarios encountered under variations in wind turbine component failure rates. The analysis considers: (1) a Reference Scenario using the default part failure rates within the O&M Cost Model, (2) High Failure Rate Scenarios that increase the failure rates of three major components (blades, gearboxes, and generators) individually, (3) 100% Replacement Scenarios that model full replacement of these components over a 20 year operating life, and (4) Serial Failure Scenarios that model full replacement of blades, gearboxes, and generators in years 4 to 6 of the wind project. DNV selected these scenarios to represent a broad range of possible operational experiences. Also in this report, DNV summarizes the predominant financing arrangements used to develop wind energy projects over the past several years and provides summary data on various financial metrics describing those arrangements.

Martin-Tretton, M.; Reha, M.; Drunsic, M.; Keim, M.

2012-01-01T23:59:59.000Z

478

Table 11.3 Electricity: Components of Onsite Generation, 2002  

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

3 Electricity: Components of Onsite Generation, 2002;" 3 Electricity: Components of Onsite Generation, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Onsite-Generation Components;" " Unit: Million Kilowatthours." " "," ",,,"Renewable Energy",," " " "," ",,,"(excluding Wood",,"RSE" "NAICS"," ","Total Onsite",,"and",,"Row" "Code(a)","Subsector and Industry","Generation","Cogeneration(b)","Other Biomass)(c)","Other(d)","Factors" ,,"Total United States" ,"RSE Column Factors:",0.9,0.8,1.1,1.3

479

" Row: NAICS Codes; Column: Electricity Components;"  

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

1.1 Electricity: Components of Net Demand, 2010;" 1.1 Electricity: Components of Net Demand, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," " " "," ",,,"Total ","Sales and","Net Demand" "NAICS"," ",,"Transfers ","Onsite","Transfers","for" "Code(a)","Subsector and Industry","Purchases","In(b)","Generation(c)","Offsite","Electricity(d)" ,,"Total United States" 311,"Food",75652,21,5666,347,80993

480

Table 11.4 Electricity: Components of Onsite Generation, 2002  

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

4 Electricity: Components of Onsite Generation, 2002;" 4 Electricity: Components of Onsite Generation, 2002;" " Level: National and Regional Data; " " Row: Values of Shipments and Employment Sizes;" " Column: Onsite-Generation Components;" " Unit: Million Kilowatthours." " ",,,"Renewable Energy" ,,,"(excluding Wood",,"RSE" "Economic","Total Onsite",,"and",,"Row" "Characteristic(a)","Generation","Cogeneration(b)","Other Biomass)(c)","Other(d)","Factors" ,"Total United States" "RSE Column Factors:",0.8,0.8,1.1,1.4 "Value of Shipments and Receipts"

Note: This page contains sample records for the topic "related model components" 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.


481

Magnetic component of gluon plasma and its viscosity  

E-Print Network [OSTI]

We discuss the role of the magnetic degrees of freedom of the gluon plasma in its viscosity. The main assumption is that motions of the magnetic component and of the rest of the plasma can be considered as independent. The magnetic component in the deconfined phase is described by a three-dimensional (Euclidean) field theory. The parameters of the theory can be estimated phenomenologically, from the lattice data. It is not ruled out that the magnetic component is superfluid.

M. N. Chernodub; H. Verschelde; V. I. Zakharov

2009-05-15T23:59:59.000Z

482

" Row: NAICS Codes; Column: Electricity Components;"  

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

1.1 Electricity: Components of Net Demand, 2006;" 1.1 Electricity: Components of Net Demand, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," " " "," ",,,"Total ","Sales and","Net Demand" "NAICS"," ",,"Transfers ","Onsite","Transfers","for" "Code(a)","Subsector and Industry","Purchases","In(b)","Generation(c)","Offsite","Electricity(d)" ,,"Total United States" 311,"Food",73242,309,4563,111,78003

483

Microsoft Word - NGNP_Metallic Component Risk Report-043008-FINAL...  

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

TI-RISK May 2008 Revision 0 Metallic Component Schedule Risk and Cost Uncertainty Assessment APPROVALS Function Printed Name and Signature Date Author Name: Philip L. Rittenhouse...

484

Interaction of low-metamorphic coal components in coking batch  

Science Journals Connector (OSTI)

The interaction of low-metamorphic coal components in coking batch during pyrolysis is studied. The characteristics of the resulting coke are presented, and the partial hydrogenation is...

E. I. Malyi; A. S. Koverya; M. A. Starovoit

2010-08-01T23:59:59.000Z

485

New Austenitic Stainless Steels for Exhaust Components (Agreement...  

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

More Documents & Publications CF8C PLus: A New Cast Stainless Steel for High-Temperature Diesel Exhaust Components Vehicle Technologies Office Merit Review 2014: Materials for...

486

A Component Evaluation Tool from the Vehicle System Perspective  

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

Testbed) is a Modular Hybrid Test Environment for Component Evaluation Emulated electric traction system: *Battery pack simulated *Motor-inverter emulated *Physical motor...

487

Electric Drive and Advanced Battery and Components Testbed (EDAB...  

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

and Peer Evaluation Meeting vss033carlson2012o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office...

488

Electric Drive and Advanced Battery and Components Testbed (EDAB...  

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

Review and Peer Evaluation vss033carlson2011o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Electric Drive and Advanced...

489

Nuclear Safety Component and Services Procurement, June 29, 2011...  

Office of Environmental Management (EM)

Office of Enforcement and Oversight Criteria Review and Approach Document Subject: Nuclear Safety Component and Services Procurement Inspection Criteria, Inspection Activities, and...

490

US Synthetic Corp (TRL 4 Component) - The Development of Open...  

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

Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines US Synthetic Corp (TRL 4 Component) - The Development of Open, Water Lubricated...

491

Macroencapsulation Equivalency Guidance for Classified Weapon Components and NNSSWAC Compliance  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) complex has a surplus of classified legacy weapon components generated over the years with no direct path for disposal. The majority of the components have been held for uncertainty of future use or no identified method of sanitization or disposal. As more weapons are retired, there is an increasing need to reduce the amount of components currently in storage or on hold. A process is currently underway to disposition and dispose of the legacy/retired weapons components across the DOE complex.

Poling, J.

2012-05-15T23:59:59.000Z

492

DOE Cell Component Accelerated Stress Test Protocols for PEM...  

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

CELL COMPONENT ACCELERATED STRESS TEST PROTOCOLS FOR PEM FUEL CELLS (Electrocatalysts, Supports, Membranes, and Membrane Electrode Assemblies) March 2007 Fuel cells, especially for...

493

Cell Component Accelerated Stress Test Protocols for PEM Fuel...  

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

USCAR FUEL CELL TECH TEAM CELL COMPONENT ACCELERATED STRESS TEST PROTOCOLS FOR PEM FUEL CELLS (Electrocatalysts, Supports, Membranes, and Membrane Electrode Assemblies) Revised May...

494

Components Responsible for the Health Effects of Inhaled Engine...  

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

Responsible for the Health Effects of Inhaled Engine Emissions Components Responsible for the Health Effects of Inhaled Engine Emissions Presentation given at the 2007 Diesel...

495

Friction and Wear Enhancement of Titanium Alloy Engine Components...  

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

Merit Review and Peer Evaluation pm007blau2011o.pdf More Documents & Publications Friction and Wear Enhancement of Titanium Alloy Engine Components Vehicle Technologies Office...

496

NREL: Energy Systems Integration Facility - Prototype and Component...  

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

DC systems such as commercial microgrids Long-duration reliability and safety tests of battery and energy storage system components Thermal energy storage materials testing...

497

AMD 405: Improved Automotive Suspension Components Cast with...  

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

Maryland. merit08mccarty5.pdf More Documents & Publications AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC) Low Cost PM Technology for Particle Reinforced...

498

Scientific Solutions (TRL 5 6 Component) - Underwater Active...  

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

Energy Scientific Solutions (TRL 5 6 Component) - Underwater Active Acoustic Monitoring Network for Marine and Hydrokinetic Energy 40aamssistein.ppt More Documents &...

499

Physics of Reliability: Evaluating Design Insights for Component...  

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

for Component Technologies in Solar (PREDICTS) program is taking a physics- and chemistry-based approach to identifying failure modes for solar products. Launched in October...

500

NDE DEVELOPMENT FOR ACERT ENGINE COMPONENTS | Department of Energy  

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

Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation pm024sun2011p.pdf More Documents & Publications NDE Development for ACERT Engine Components...