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Note: This page contains sample records for the topic "analysis base cases" 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.


1

1980 Base case and feasibility analysis  

SciTech Connect

This report describes a task of documenting a base case'' and performing a feasibility analysis for a national residential energy efficiency program for new homes, The principal objective of the task wasto estimate the energy consumption of typical homes built in 1980 and then to identify and assess the feasibility of methods to reduce that consumption by 50%. The goal of the program by the year 2000 is to reduce heating and cooling energy use in new homes built under the program to one-half of the energy use in typical new homes built in 1980. The task also calls for determining whether the program goal should be revised, based on the analysis.

1993-03-01T23:59:59.000Z

2

1980 Base case and feasibility analysis  

SciTech Connect

This report describes a task of documenting a ``base case`` and performing a feasibility analysis for a national residential energy efficiency program for new homes, The principal objective of the task wasto estimate the energy consumption of typical homes built in 1980 and then to identify and assess the feasibility of methods to reduce that consumption by 50%. The goal of the program by the year 2000 is to reduce heating and cooling energy use in new homes built under the program to one-half of the energy use in typical new homes built in 1980. The task also calls for determining whether the program goal should be revised, based on the analysis.

1993-03-01T23:59:59.000Z

3

Load flow analysis: Base cases, data, diagrams, and results  

SciTech Connect

This report describes how an electric utility system is modeled by using load flow techniques to establish a validated power flow case suitable for simulating and evaluating alternative system scenarios. Details of the load flow model are supported by additional technical and descriptive information intended to correlate modeled electrical system parameters with the corresponding physical equipment that makes up the system. Pictures and technical specifications of system equipment from the utility, public, or vendor are provided to support this association for many system components. The report summarizes the load flow model construction, simulation, and validation and describes the general capabilities of an information query system designed to access load flow parameters and other electrical system information.

Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P.

1997-10-01T23:59:59.000Z

4

Fuel Cycle Analysis Framework Base Cases for the IAEA/INPRO GAINS Collaborative Project  

SciTech Connect

Thirteen countries participated in the Collaborative Project GAINS “Global Architecture of Innovative Nuclear Energy Systems Based on Thermal and Fast Reactors Including a Closed Fuel Cycle”, which was the primary activity within the IAEA/INPRO Program Area B: “Global Vision on Sustainable Nuclear Energy” for the last three years. The overall objective of GAINS was to develop a standard framework for assessing future nuclear energy systems taking into account sustainable development, and to validate results through sample analyses. This paper details the eight scenarios that constitute the GAINS framework base cases for analysis of the transition to future innovative nuclear energy systems. The framework base cases provide a reference for users of the framework to start from in developing and assessing their own alternate systems. Each base case is described along with performance results against the GAINS sustainability evaluation metrics. The eight cases include four using a moderate growth projection and four using a high growth projection for global nuclear electricity generation through 2100. The cases are divided into two sets, addressing homogeneous and heterogeneous scenarios developed by GAINS to model global fuel cycle strategies. The heterogeneous world scenario considers three separate nuclear groups based on their fuel cycle strategies, with non-synergistic and synergistic cases. The framework base case analyses results show the impact of these different fuel cycle strategies while providing references for future users of the GAINS framework. A large number of scenario alterations are possible and can be used to assess different strategies, different technologies, and different assumptions about possible futures of nuclear power. Results can be compared to the framework base cases to assess where these alternate cases perform differently versus the sustainability indicators.

Brent Dixon

2012-09-01T23:59:59.000Z

5

Ensemble-Based Exigent Analysis. Part I: Estimating Worst-Case Weather-Related Forecast Damage Scenarios  

Science Conference Proceedings (OSTI)

Exigent analysis supplements an ensemble forecast of weather-related damage with a map of the worst-case scenario (WCS), a multivariate confidence bound of the damage. For multivariate Gaussian ensembles, ensemble-based exigent analysis uses a ...

Daniel Gombos; Ross N. Hoffman

2013-06-01T23:59:59.000Z

6

ANUDlSiTM-40 Load Flow Analysis: Base Cases, Data, Diagrams, and Results  

Office of Scientific and Technical Information (OSTI)

ANUDlSiTM-40 ANUDlSiTM-40 Load Flow Analysis: Base Cases, Data, Diagrams, and Results by E.C. Portante, J.A. Kavicky, J.C. VanKuiken, and J.P. Peerenboom Decision and Information Sciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 October 1997 Work sponsored by Navy Engineering Logistics Office This report is printed on recycled paper. @ DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness. or use- fulness of any information, apparatus, product, or process disclosed, or represents

7

A hybrid approach using data envelopment analysis and case-based reasoning for housing refurbishment contractors selection and performance improvement  

Science Conference Proceedings (OSTI)

The refurbishment market has grown greatly in the last decade. Relevant projects are becoming increasingly more demanding in the construction industry due to the emphasis on sustainability. Most refurbishment works, however, involve a higher level of ... Keywords: Case-based reasoning (CBR), Contractors selection, Data envelopment analysis (DEA), Housing refurbishment, Performance improvement

Yi-Kai Juan

2009-04-01T23:59:59.000Z

8

Base isolation case study  

E-Print Network (OSTI)

The primary objective of this thesis is the introduction of the current code, ASCE 7-05 into the base isolation design and the analysis of base isolation response due to seismic forces. An eight story irregular structure ...

Ching, Kenneth A. (Kenneth Apostol)

2008-01-01T23:59:59.000Z

9

Supporting use case based requirements engineering  

E-Print Network (OSTI)

Use Cases that describe possible interactions involving a system and its environment are increasingly being accepted as effective means for functional requirements elicitation and analysis. In the current practice, informal definitions of use cases are used and the analysis process is manual. In this paper, we present an approach supported by a tool for use cases based requirements engineering. Our approach includes use cases formalization, a restricted form of natural language for use cases description, and the derivation of an executable specification as well as a simulation environment from use cases. Key words: Use cases, domain modeling, UML, requirements engineering, prototyping

Stéphane S. Somé

2006-01-01T23:59:59.000Z

10

Induced structural radioactivity inventory analysis of the base case aqueous ATW reactor concept  

Science Conference Proceedings (OSTI)

The purpose of the Los Alamos National Laboratory Accelerator Transmutation of Nuclear Waste (ATW) project is the substantial reduction in volume of this country`s long-lived high-level radioactive waste in a safe and energy efficient manner. An evaluation of the Accelerator Transmutation of Nuclear Waste concept has four aspects; material balance, energy balance, performance and cost. An evaluation of the material balance compares the amount of long-lived high-level waste transmuted with the amount and type of waste created in the process. One component of the material balance is the activation of structural materials over the lifetime of the transmutation reactor. An activation analysis has been performed on four structure regions of the reaction vessel: the tungsten target; the lead target and annulus; the Zircalloy and aluminum tubing carrying the actinide slurry and; the stainless steel tank.

Bezdecny, J.A.; Henderson, D.L. [Wisconsin Univ., Madison, WI (United States); Sailor, W.C. [Los Alamos National Lab., NM (United States)

1993-12-31T23:59:59.000Z

11

Preliminary analysis of the induced structural radioactivity inventory of the base-case aqueous accelerator transmutation of waste reactor concept  

SciTech Connect

The purpose of the Los Alamos National Laboratory Accelerator Transmutation of (Nuclear) Waste (ATW) project is the substantial reduction in volume of long-lived high-level radioactive waste of the US in a safe and energy-efficient manner. An evaluation of the ATW concept has four aspects: material balance, energy balance, performance, and cost. An evaluation of the material balance compares the amount of long-lived high-level waste transmuted with the amount and type, of waste created in the process. One component of the material balance is the activation of structural materials over the lifetime of the transmutation reactor. A preliminary radioactivity and radioactive mass balance analysis has been performed on four structure regions of the reaction chamber: the tungsten target, the lead annulus, six tubing materials carrying the actinide slurry, and five reaction vessel structural materials. The amount of radioactive material remaining after a 100-yr cooling period for the base-case ATW was found to be 338 kg of radionuclides. The bulk of this material (313 kg) was generated in the zirconium-niobium (Zr-Nb) actinide tubing material. Replacement of the Zr-Nb tubing material with one of the alternative tubing materials analyzed would significantly reduce the short- and long-term radioactive mass produced. The alternative vessel material Al-6061 alloys, Tenelon, HT-9, and 2 1/4 Cr-1 Mo and the alternative actinide tubing materials Al-6061 alloy, carbon-carbon matrix, silicon carbide, and Ti-6 Al-4 V qualify for shallow land burial. Alternative disposal options for the base-case structural material Type 304L stainless steel and the actinide tubing material Zr-Nb will need to be considered as neither qualifies for shallow land burial.

Bezdecny, J.A.; Vance, K.M.; Henderson, D.L. [Univ. of Wisconsin, Madison, WI (United States). Dept. of Nuclear Engineering and Engineering Physics

1995-06-01T23:59:59.000Z

12

Ensemble-Based Exigent Analysis. Part II: Using Ensemble Regression to Estimate Conditions Antecedent to Worst-Case Forecast Damage Scenarios  

Science Conference Proceedings (OSTI)

In Part I of this series on ensemble-based exigent analysis, a Lagrange multiplier minimization technique is used to estimate the exigent damage state (ExDS), the “worst case” with respect to a user-specified damage function and confidence level. ...

Daniel Gombos; Ross N. Hoffman

2013-06-01T23:59:59.000Z

13

Base case and perturbation scenarios  

SciTech Connect

This report describes fourteen energy factors that could affect electricity markets in the future (demand, process, source mix, etc.). These fourteen factors are believed to have the most influence on the State? s energy environment. A base case, or most probable, characterization is given for each of these fourteen factors over a twenty year time horizon. The base case characterization is derived from quantitative and qualitative information provided by State of California government agencies, where possible. Federal government databases are nsed where needed to supplement the California data. It is envisioned that a initial selection of issue areas will be based upon an evaluation of them under base case conditions. For most of the fourteen factors, the report identities possible perturbations from base case values or assumptions that may be used to construct additional scenarios. Only those perturbations that are plausible and would have a significant effect on energy markets are included in the table. The fourteen factors and potential perturbations of the factors are listed in Table 1.1. These perturbations can be combined to generate internally consist.ent. combinations of perturbations relative to the base case. For example, a low natural gas price perturbation should be combined with a high natural gas demand perturbation. The factor perturbations are based upon alternative quantitative forecasts provided by other institutions (the Department of Energy - Energy Information Administration in some cases), changes in assumptions that drive the quantitative forecasts, or changes in assumptions about the structure of the California energy markets. The perturbations are intended to be used for a qualitative reexamination of issue areas after an initial evaluation under the base case. The perturbation information would be used as a ?tiebreaker;? to make decisions regarding those issue areas that were marginally accepted or rejected under the base case. Hf a quantitative scoring system for issue areas were applied under the base case, a tractable quantitative decision model incorporating scenarios and their likelihoods could be developed and appli& in the decision process. LLNL has developed four perturbation scenarios that address the following issues: l} low economic growth, 2) high natural gas prices, 3) dysfunctional markets, and 4) a preference for green power. We have proposed a plausible scenario that addresses each issue for discussion and consideration by the CEC. In addition, we have provided an example application of the four perturbation scenarios in a qualitative framework for evaluation of issue areas developed for the PIEPC program. A description of each of the perturbation scenarios and a discussion of how they could effect decisions about today? s R&D funding is included. The scenarios attempt to cover a broad spectrum of plausible outcomes in a deregulated market environment. Nowever, Vhey are not a comprehensive and rigorously defined list of the most probable scenarios, but rather a qualitative inference based upon knowledge and expertise in the energy field.

Edmunds, T

1998-10-01T23:59:59.000Z

14

Distributed Resources Premium Power Solutions: Market Analysis and Business Case for Distributed Resources-Based Premium Power  

Science Conference Proceedings (OSTI)

It has been postulated that distributed resources (DR) can solve power quality and reliability problems. While the application generation and storage technologies is quite common for providing premium power, extracting DR benefits from these installations, whether existing or future, is less well developed. This report analyzes different DR applications and options for improving power quality and reliability at end user facilities. In this analysis, DR-capable technologies refer to generator and storage ...

2003-01-29T23:59:59.000Z

15

Process Engineering Division Texaco Gasifier IGCC Base Cases  

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

Engineering Division Engineering Division Texaco Gasifier IGCC Base Cases PED-IGCC-98-001 July 1998 Latest Revision June 2000 PREFACE This report presents the results of an analysis of three Texaco Gasifier IGCC Base Cases. The analyses were performed by W. Shelton and J. Lyons of EG&G. EXECUTIVE SUMMARY 1. Process Descriptions 1.1 Texaco Gasifier 1.2 Air Separation Plant (ASU) 1.3 Gas Cooling/Heat Recovery/Hydrolysis/Gas Saturation (Case 1 and Case 2) 1.4 Cold Gas Cleanup Unit (CGCU) (Case 1 and Case 2) 1.5 Fine Particulate Removal/ Chloride Guard Bed - Case 3 1.6 Transport Desulfurization HGCU - Case 3 1.7 Sulfuric Acid Plant - Case 3 1.8 Gas Turbine 1.9 Steam Cycle 1.10 Power Production 2. Simulation Development 3. Cost of Electricity Analysis

16

Symbolic Test Selection Based on Approximate Analysis  

E-Print Network (OSTI)

Symbolic Test Selection Based on Approximate Analysis Bertrand Jeannet, Thierry J´eron, Vlad Rusu}@irisa.fr Abstract. This paper addresses the problem of generating symbolic test cases for testing the conformance. The challenge we consider is the selection of test cases according to a test purpose, which is here a set

Paris-Sud XI, Université de

17

ARM - Field Campaign - CASES Data Analysis  

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

govCampaignsCASES Data Analysis govCampaignsCASES Data Analysis Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : CASES Data Analysis 2004.07.01 - 2009.06.30 Lead Scientist : Margaret LeMone Description CASES Data Analysis: Potential Benefits Diurnal variation of the Atmospheric Boundary Layer. Taken together, the two Cooperative Atmosphere Surface Exchange Study (CASES) field programs, CASES-97 (morning and evening) and CASES-99 (evening, night, morning) provide a robust dataset for looking at the diurnal changes of the wind, temperature, humidity and their vertical transports near the ground and through the lowest few kilometers where surface effects are directly felt - the atmospheric boundary layer. Much of our observational knowledge

18

Integrating both Wikis and XML with case bases to facilitate case base development and maintenance  

Science Conference Proceedings (OSTI)

Case-based reasoning (CBR), as a promising technology for problem solving and decision support, has drawn considerable attention during the last 20years. As CBR systems become more frequently deployed in real-world situations and as large-scale case-bases ... Keywords: Case-based reasoning, Integration, Open XML, Wikis

Wu He; Lida Xu

2011-07-01T23:59:59.000Z

19

Maintaining Footprint-Based Retrieval for Case Deletion  

Science Conference Proceedings (OSTI)

The effectiveness and efficiency of case-based reasoning (CBR) systems depend largely on the success of case-based retrieval. The case-base maintenance (CBM) issues become imperative and important especially for modern societies. This paper proposes ... Keywords: case-based maintenance, case-based reasoning, competence models, footprint-based retrieval

Ning Lu; Jie Lu; Guangquan Zhang

2009-12-01T23:59:59.000Z

20

Worst-case structural analysis  

Science Conference Proceedings (OSTI)

Direct digital manufacturing is a set of rapidly evolving technologies that provide easy ways to manufacture highly customized and unique products. The development pipeline for such products is radically different from the conventional manufacturing ... Keywords: digital manufacturing, structural analysis

Qingnan Zhou, Julian Panetta, Denis Zorin

2013-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Geographically-Based Infrastructure Analysis  

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

Infrastructure Infrastructure Analysis Margo Melendez & Keith Parks January 26, 2006 Geographically-Based Infrastructure Analysis (GIA) Utilizes GIS, geographically segregated data, and transition expertise to add the spatial component to infrastructure analysis NREL Core Competencies * Geographic data, tools, and expertise * Flexibility to address a wide array of transition issues NREL Capability Diagram Geographically-based Infrastructure Analysis GIS Transportation Technologies & Systems Electric & Hydrogen Technologies Energy Analysis Office GIA Activities Previous and Ongoing * HYDS ME - Evaluates best infrastructure options * Interstate Infrastructure Analysis - Minimal infrastructure to facilitate interstate travel during transition New Analyses * Quantifying transitional hydrogen demand

22

Belief-based risk analysis  

Science Conference Proceedings (OSTI)

This paper describes a method for risk analysis based on the approach used in CRAMM, but instead of using discrete measures for threats and vulnerabilities and look-up tables to derive levels of risk, it uses subjective beliefs about threats and vulnerabilities ... Keywords: belief calculus, risk analysis, security

Audun Jøsang; Daniel Bradley; Svein J. Knapskog

2004-01-01T23:59:59.000Z

23

Colorado Vehicle Fleets Case Study Analysis  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Experiences with Compressed Natural Gas in Experiences with Compressed Natural Gas in Colorado Vehicle Fleets Case Study Analysis August 2012 Case Study Analysis August 2012 2 Acknowledgements The Colorado Energy Office would like to thank the following individuals and organizations for their participation in the case studies: Jay Valentine, City of Grand Junction Joseph Noorlag, Republic Services Victor Lovato, Denver International Airport The Colorado Energy Office would also like to thank the following people for their review and input to this document: Wendy DaFoe, National Renewable Energy Laboratory John Gonzales, National Renewable Energy Laboratory Alexine Hazarian, Encana Natural Gas Inc. Paul Kerkhoven, NGV America Charlie Kerr, Cummins-Westport Inc. Sheble McConnellogue, Northern Colorado Clean Cities

24

Using case-based tests to detect gray cygnets  

Science Conference Proceedings (OSTI)

Black Swans are surprising, exceptional, provocative cases that instigate major change. Gray Cygnets follow a Black Swan, are highly similar to it, are also exceptional in outcome, and continue to provoke change. We discuss experiments with a family ... Keywords: black swans, case similarity, case-based reasoning, classification tests, gray cygnets, supreme on-point case (sopc), surprising cases

Edwina L. Rissland; Xiaoxi Xu

2011-09-01T23:59:59.000Z

25

A Model for Personalized Web-Scale Case Base Maintenance  

Science Conference Proceedings (OSTI)

The growing use of case-based reasoning (CBR) systems on the Web has brought with it increased awareness of the Web-scale case base maintenance (CBM). While most existing CBM policies and approaches, which were designed for smaller case bases with sizes ...

Jingyu Sun; Xueli Yu; Ruizhi Wang; Ning Zhong

2009-10-01T23:59:59.000Z

26

Fuzzy case-based reasoning for facial expression recognition  

Science Conference Proceedings (OSTI)

Fuzzy logic (FL) and case-based reasoning (CBR) are two well-known techniques for the implementation of intelligent classification systems. Each technique has its own advantages and drawbacks. FL, for example, provides an intuitive user interface, simplifies ... Keywords: Case-based reasoning, Fuzzy case-based reasoning, Fuzzy logic, Human computer interaction, Intelligent systems

Aasia Khanum; Muid Mufti; M. Younus Javed; M. Zubair Shafiq

2009-01-01T23:59:59.000Z

27

Business Case Slide 34: Regulatory Constraints Analysis (ANL...  

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

Regulatory Constraints Analysis (ANL) - Program Focus Program focus ANL will be preparing a risk analysis and regulatory plan for a specific case: use of DU in catalysts Enhance...

28

Worst-Case and Average-Case Analysis of n-Detection Test Sets  

E-Print Network (OSTI)

Test sets that detect each target fault n times (n-detection test sets) are typically generated for restricted values of n due to the increase in test set size with n. We perform both a worst-case analysis and an average-case analysis to check the effect of restricting n on the unmodeled fault coverage of an (arbitrary) n-detection test set. Our analysis is independent of any particular test set or test generation approach. It is based on a specific set of target faults and a specific set of untargeted faults. It shows that, depending on the circuit, very large values of n may be needed to guarantee the detection of all the untargeted faults. We discuss the implications of these results.

Pomeranz, Irith

2011-01-01T23:59:59.000Z

29

Analysis of Restricted Natural Gas Supply Cases  

Reports and Publications (EIA)

The four cases examined in this study have progressively greater impacts on overall natural gas consumption, prices, and supply. Compared to the Annual Energy Outlook 2004 reference case, the no Alaska pipeline case has the least impact; the low liquefied natural gas case has more impact; the low unconventional gas recovery case has even more impact; and the combined case has the most impact.

James Kendell

2004-03-01T23:59:59.000Z

30

Learning adaptation knowledge to improve case-based reasoning  

Science Conference Proceedings (OSTI)

Case-Based Reasoning systems retrieve and reuse solutions for previously solved problems that have been encountered and remembered as cases. In some domains, particularly where the problem solving is a classification task, the retrieved solution can ... Keywords: Adaptation knowledge, Case-based reasoning, Introspective learning, Knowledge acquisition, Machine learning

Susan Craw; Nirmalie Wiratunga; Ray C. Rowe

2006-11-01T23:59:59.000Z

31

Chapter 11. Community analysis-based methods  

Science Conference Proceedings (OSTI)

Microbial communities are each a composite of populations whose presence and relative abundance in water or other environmental samples are a direct manifestation of environmental conditions, including the introduction of microbe-rich fecal material and factors promoting persistence of the microbes therein. As shown by culture-independent methods, different animal-host fecal microbial communities appear distinctive, suggesting that their community profiles can be used to differentiate fecal samples and to potentially reveal the presence of host fecal material in environmental waters. Cross-comparisons of microbial communities from different hosts also reveal relative abundances of genetic groups that can be used to distinguish sources. In increasing order of their information richness, several community analysis methods hold promise for MST applications: phospholipid fatty acid (PLFA) analysis, denaturing gradient gel electrophoresis (DGGE), terminal restriction fragment length polymorphism (TRFLP), cloning/sequencing, and PhyloChip. Specific case studies involving TRFLP and PhyloChip approaches demonstrate the ability of community-based analyses of contaminated waters to confirm a diagnosis of water quality based on host-specific marker(s). The success of community-based MST for comprehensively confirming fecal sources relies extensively upon using appropriate multivariate statistical approaches. While community-based MST is still under evaluation and development as a primary diagnostic tool, results presented herein demonstrate its promise. Coupled with its inherently comprehensive ability to capture an unprecedented amount of microbiological data that is relevant to water quality, the tools for microbial community analysis are increasingly accessible, and community-based approaches have unparalleled potential for translation into rapid, perhaps real-time, monitoring platforms.

Cao, Y.; Wu, C.H.; Andersen, G.L.; Holden, P.A.

2010-05-01T23:59:59.000Z

32

Combining Case-Based and Model-Based Reasoning for the Diagnosis of Complex Devices  

Science Conference Proceedings (OSTI)

A novel approach to integrating case-based reasoning with model-based diagnosis is presented. This approach, called Experience Aided Diagnosis (EAD), uses the model of the device and the results of diagnostic tests to index and match cases representing past ... Keywords: case-based reasoning, hybrid problem-solving methods, model-based diagnosis

M. P. Féret; J. I. Glasgow

1997-01-01T23:59:59.000Z

33

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

U.S. Energy Information Administration (EIA)

WTI Crude Oil Price: Base Case and 95% Confidence Interval. Sources: History: EIA; Projections: Short-Term Energy Outlook, December 2000. Projections

34

Analysis of design tradeoffs for diplay case evaporators  

SciTech Connect

A model for simulating a display case evaporator under frosting conditions has been developed, using a quasi-steady and finite-volume approach and a Newton-Raphson based solution algorithm. It is capable of simulating evaporators with multiple modules having different geometries, e.g. tube and fin thicknesses and pitch. The model was validated against data taken at two-minute intervals from a well-instrumented medium-temperature vertical display case, for two evaporators having very different configurations. The data from these experiments provided both the input data for the model and also the data to compare the modeling results. The validated model has been used to generate some general guidelines for coil design. Effects of various geometrical parameters were quantified, and compressor performance data were used to express the results in terms of total power consumption. Using these general guidelines, a new prototype evaporator was designed for the subject display case, keeping in mind the current packaging restrictions, tube and fin availabilities. It is an optimum coil for the given external load conditions. Subsequently, the validated model was used in a more extensive analysis to design prototype coils with some of the current tube and fin spacing restrictions removed. A new microchannel based suction line heat exchanger was installed in the display case system. The performance of this suction line heat exchanger is reported.

Bullard, CLARK

2004-08-11T23:59:59.000Z

35

An Interactive Case Study in Composite Failure Analysis  

Science Conference Proceedings (OSTI)

In the case study, the audience will be presented with the failure scenario and key ... Advanced Digital Microscopy is Revolutionizing Failure Analysis.

36

CMB polarization: Scientific case and data analysis issues  

Science Conference Proceedings (OSTI)

We review the science case for studying CMB polarization. We then discuss the main issues related to the analysis of forth-coming polarized CMB data

A. Balbi; P. Cabella; G. de Gasperis; P. Natoli; N. Vittorio

2002-01-01T23:59:59.000Z

37

Towards case-based parsing: are chunks reliable indicators for syntax trees?  

Science Conference Proceedings (OSTI)

This paper presents an approach to the question whether it is possible to construct a parser based on ideas from case-based reasoning. Such a parser would employ a partial analysis of the input sentence to select a (nearly) complete syntax tree and then ...

Sandra Kübler

2006-07-01T23:59:59.000Z

38

Search and Adaptation in a Fuzzy Object Oriented Case Base  

Science Conference Proceedings (OSTI)

In this paper we propose to represent a case using an object oriented model that enables the description of imprecise knowledge using possibility distributions. The proposed search process is based on this modeling and a fuzzy similarity measure is defined. ...

Magali Ruet; Laurent Geneste

2002-09-01T23:59:59.000Z

39

Applying Case-Based Reasoning to Mechanical Bearing Design  

E-Print Network (OSTI)

Case-Based Reasoning (CBR) provides a promising methodology for solving many complex engineering design problems. CBR is based on the idea that past problem-solving experiences can be reused and learned from in solving new problems. This paper presents an overview of a CBR design system to assist human engineers in performing mechanical bearing design. It retrieves previously designed cases from a case-base and uses adaptation techniques to adapt them to satisfy the current problem requirements. Our approach combines parametric adaptations and constraint satisfaction adaptations. The technique of parametric adaptation considers not only parameter substitution, but also the interrelationships between the problem definition and its solution. The technique of constraint satisfaction adaptation provides a method to globally check the design requirements to assess case adaptability. Currently, our system has been tested in the rolling bearing domain.

Xiaoli Qin; William C. Regli

2000-01-01T23:59:59.000Z

40

Ontology-Based Network Management: Study Cases and Lessons Learned  

Science Conference Proceedings (OSTI)

Ontology based network management has recently evolved from a theoretical proposal to a more mature technology. As such, it is now being applied in many research projects in a number of different network management and security scenarios. This application ... Keywords: Autonomic management, Lessons learned, Network monitoring, Network security, OWL, Ontology-based network management, SWRL, Study case

Jorge E. López De Vergara; Antonio Guerrero; Víctor A. Villagrá; Julio Berrocal

2009-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

WCOID-DG: An approach for case base maintenance based on Weighting, Clustering, Outliers, Internal Detection and Dbsan-Gmeans  

Science Conference Proceedings (OSTI)

The success of the Case Based Reasoning system depends on the quality of the case data and the speed of the retrieval process that can be costly in time, especially when the number of cases gets bulky. To guarantee the system@?s quality, maintaining ... Keywords: Case base maintenance, Case based reasoning, Density based clustering, Gaussian-Means clustering, Outliers detection

Abir Smiti, Zied Elouedi

2014-02-01T23:59:59.000Z

42

JAVA based LCD Reconstruction and Analysis Tools  

Science Conference Proceedings (OSTI)

We summarize the current status and future developments of the North American Group's Java-based system for studying physics and detector design issues at a linear collider. The system is built around Java Analysis Studio (JAS) an experiment-independent Java-based utility for data analysis. Although the system is an integrated package running in JAS, many parts of it are also standalone Java utilities.

Bower, G.

2004-10-11T23:59:59.000Z

43

Hybrid intelligent parameter estimation based on grey case-based reasoning for laminar cooling process  

Science Conference Proceedings (OSTI)

In this paper, a hybrid intelligent parameter estimation algorithm is proposed for predicting the strip temperature during laminar cooling process. The algorithm combines a hybrid genetic algorithm (HGA) with grey case-based reasoning (GCBR) in order ... Keywords: Grey case-based reasoning, Hybrid genetic algorithm, Laminar cooling process, Parameter estimation

Guishan Xing; Jinliang Ding; Tianyou Chai; Puya Afshar; Hong Wang

2012-03-01T23:59:59.000Z

44

A Case-Based Reasoning View of Automated Collaborative Filtering  

E-Print Network (OSTI)

From some perspectives Automated Collaborative Filtering (ACF) appears quite similar to Case-Based Reasoning (CBR). It works on data organised around users and assets that might be considered case descriptions. In addition, in some versions of ACF, much of the induction is deferred to run time -- in the lazy learning spirit of CBR. On the other hand, because of its lack of semantic descriptions it seems to be the antithesis of case-based reasoning -- a learning approach based on case representations. This paper analyses the characteristics shared by ACF and CBR, it highlights the differences between the two approaches and attempts to answer the question "When is it useful or valid to consider ACF as CBR?". We argue that a CBR perspective on ACF can only be useful if it offers insights into the ACF process and supports a transfer of techniques. In conclusion we present a case retrieval net model of ACF and show how it allows for enhancements to the basic ACF idea.

Conor Hayes; Padraig Cunningham; Barry Smyth

2001-01-01T23:59:59.000Z

45

Combining rough set and case based reasoning for process conditions selection in camshaft grinding  

Science Conference Proceedings (OSTI)

Case Based Reasoning (CBR) is a novel paradigm that uses previous cases to solve new, unseen and different problems. However, redundant features may not only dramatically increase the case memory, but also make the case retrieval more time-consuming. ... Keywords: Camshaft grinding, Case based reasoning, Case evaluation, Case reclassify, Feature reduction, Genetic algorithm, Rough set

X. H. Zhang; Z. H. Deng; W. Liu; H. Cao

2013-04-01T23:59:59.000Z

46

Wavelet based analysis of circuit breaker operation  

E-Print Network (OSTI)

Circuit breaker is an important interrupting device in power system network. It usually has a lifetime about 20 to 40 years. During breaker's service time, maintenance and inspection are imperative duties to achieve its reliable operation. To automate the diagnostic practice for circuit breaker operation and reduce the utility company's workload, Wavelet based analysis software of circuit breaker operation is developed here. Combined with circuit breaker monitoring system, the analysis software processes the original circuit breaker information, speeds up the analysis time and provides stable and consistent evaluation for the circuit breaker operation.

Ren, Zhifang Jennifer

2006-05-01T23:59:59.000Z

47

Well casing-based geophysical sensor apparatus, system and method  

DOE Patents (OSTI)

A geophysical sensor apparatus, system, and method for use in, for example, oil well operations, and in particular using a network of sensors emplaced along and outside oil well casings to monitor critical parameters in an oil reservoir and provide geophysical data remote from the wells. Centralizers are affixed to the well casings and the sensors are located in the protective spheres afforded by the centralizers to keep from being damaged during casing emplacement. In this manner, geophysical data may be detected of a sub-surface volume, e.g. an oil reservoir, and transmitted for analysis. Preferably, data from multiple sensor types, such as ERT and seismic data are combined to provide real time knowledge of the reservoir and processes such as primary and secondary oil recovery.

Daily, William D. (Livermore, CA)

2010-03-09T23:59:59.000Z

48

Improved Efficiency of Oil Well Drilling through Case Based Reasoning  

E-Print Network (OSTI)

A system that applies a method of knowledge-intensive case-based reasoning, for repair and prevention of unwanted events in the domain of offshore oil well drilling, has been developed in cooperation with an oil company. From several reoccurring problems during oil well drilling the problem of "lost circulation", i.e. loss of circulating drilling fluid into the geological formation, was picked out as a pilot problem. An extensive general knowledge model was developed for the domain of oil well drilling. About fifty different cases were created on the basis of information from one North Sea operator. When the completed CBR-system was tested against a new case, five cases with descending similarity were selected by the tool. In an informal evaluation, the two best fitting cases proved to give the operator valuable advise on how to go about solving the new case. Introduction Drilling of oil wells is an expensive operation, costing around 150 000 US $ pr. day, and any loss of time caused...

Paal Skalle; Jostein Sveen; Agnar Aamodt

2000-01-01T23:59:59.000Z

49

Case Study - Hill Air Force Base, Utah | Department of Energy  

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

Hill Air Force Base, Utah Hill Air Force Base, Utah Case Study - Hill Air Force Base, Utah October 7, 2013 - 2:00pm Addthis Overview Energy savings performance contracting at Hill Air Force Base generated much interest during a recent training session on energy management that downlinked 12 Department of Defense sites. Energy systems in 940 buildings on the Base will be upgraded under an 18-year ESPC between the Government and the energy service company, CES/Way. Improvements are distributed over five task orders that will be completed in five years, with CES/Way providing $2.5 million in up-front costs for the first two task orders. Utah Power & Light will provide $8 million in rebates to help cover the contractor's initial investment, maintenance services, and interest costs.

50

NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis...  

Open Energy Info (EERE)

Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 Baseline Model Jump to: navigation, search Name NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005...

51

Case-Based Design Support: A Case Study in Architectural Design  

Science Conference Proceedings (OSTI)

Archie, a small computer-based library of architectural design cases, is described. Archie helps architects in the high-level task of conceptual design as opposed to low-level tasks such as drawing and drafting, numerical calculations, and constraint ...

Michael Pearce; Ashok K. Goel; Janet L. Kolodner; Craig Zimring; Lucas Sentosa; Richard Billington

1992-10-01T23:59:59.000Z

52

Direct Aerosol Radiative Forcing Uncertainty Based on a Radiative Perturbation Analysis  

Science Conference Proceedings (OSTI)

To provide a lower bound for the uncertainty in measurement-based clear- and all-sky direct aerosol radiative forcing (DARF), a radiative perturbation analysis is performed for the ideal case in which the perturbations in global mean aerosol ...

Norman G. Loeb; Wenying Su

2010-10-01T23:59:59.000Z

53

Case-based reasoning ensemble and business application: A computational approach from multiple case representations driven by randomness  

Science Conference Proceedings (OSTI)

Case-based reasoning (CBR) holds the unique capability of making predictions as well as suggestions to corporate executives and organizational decision-makers. How to improve its predictive performance is critical. This research aims to explore an ensemble ... Keywords: Business failure prediction, Case-based reasoning ensemble, Multiple case representations

Hui Li; Jie Sun

2012-02-01T23:59:59.000Z

54

Geographically-Based Infrastructure Analysis for California  

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

Geographically-Based Infrastructure Geographically-Based Infrastructure Analysis for California Joan Ogden Institute of Transportation Studies University of California, Davis Presented at the USDOE Hydrogen Transition Analysis Meeting Washington, DC August 9-10, 2006 Acknowledgments UC Davis Researchers: Michael Nicholas Dr. Marc Melaina Dr. Marshall Miller Dr. Chris Yang USDOE: Dr. Sig Gronich Research support: USDOE; H2 Pathways Program sponsors at UC Davis * Refueling station siting and sizing are key aspects of designing H2 infrastructure during a transition * Initial H2 stations may be co-located with vehicle fleets * Wider consumer adoption of H2 vehicles depends on fuel availability and cost (which are related to station number, size and location), + other factors. * Decision when and where to deploy network

55

A Case Based System for Oil and Gas Well Design with Risk Assessment  

Science Conference Proceedings (OSTI)

A case base system for a complex problem like oil field design needs to be richer than the usual case based reasoning system. Genesis, the system described in this paper contains large heterogeneous cases with metalevel knowledge. A multi-level indexing ... Keywords: case based systems, information extraction, knowledge sharing, oil well design, risk assessment

Simon Kravis; Rosemary Irrgang

2005-07-01T23:59:59.000Z

56

Differential Thermal Analysis of Nickel-Base Superalloys  

Science Conference Proceedings (OSTI)

Differential thermal analysis was performed on over 200 nickel-base superalloys that ... differential thermal analysis (DTA) to simply and accurately measure.

57

Topology-based Feature Definition and Analysis  

SciTech Connect

Defining high-level features, detecting them, tracking them and deriving quantities based on them is an integral aspect of modern data analysis and visualization. In combustion simulations, for example, burning regions, which are characterized by high fuel-consumption, are a possible feature of interest. Detecting these regions makes it possible to derive statistics about their size and track them over time. However, features of interest in scientific simulations are extremely varied, making it challenging to develop cross-domain feature definitions. Topology-based techniques offer an extremely flexible means for general feature definitions and have proven useful in a variety of scientific domains. This paper will provide a brief introduction into topological structures like the contour tree and Morse-Smale complex and show how to apply them to define features in different science domains such as combustion. The overall goal is to provide an overview of these powerful techniques and start a discussion how these techniques can aid in the analysis of astrophysical simulations.

Weber, Gunther H.; Bremer, Peer-Timo; Gyulassy, Attila; Pascucci, Valerio

2010-12-10T23:59:59.000Z

58

Case study data base companion report 3 to simulation of geothermal subsidence (LBL-10571)  

DOE Green Energy (OSTI)

The data base developed for selection and evaluation of geothermal subsidence case studies is presented. Data from this data base were used in case studies of Wairakei, The Geysers, and Austin Bayou Prospect (Report LBL 10571).

Miller, I.; Dershowitz, W.; Jones, K.; Myer, L.; Roman, K.; Schauer, M.

1980-03-01T23:59:59.000Z

59

Unifying weighting and case reduction methods based on rough sets to improve retrieval  

Science Conference Proceedings (OSTI)

Case-Based Reasoning systems usually retrieve cases using a similarity function based on K-NN or some derivatives. These functions are sensitive to irrelevant or noisy features. Weighting methods are used to extract the most important information ...

Maria Salamó; Elisabet Golobardes

2003-06-01T23:59:59.000Z

60

Case study: Improving debt collection processes using rule-based decision engines: A case study of Capital One  

Science Conference Proceedings (OSTI)

This case assesses the plethora of issues related to rule-based decision engine technology, and in particular, its role in complex and dynamic organizational processes. This paper argues rule-based engines can effectively be implemented for good organizational ... Keywords: Capital One, Debt collection, Project Edison, Rule-based decision, Rule-based engine

Amita Goyal Chin; Hiren Kotak

2006-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Student Summer Project Speci cation -Session 2002 Case-Based Reasoning for Smart Houses  

E-Print Network (OSTI)

Techniques #15; Case-Based Reasoning #15; Machine Learning #15; Weka using Java or Recall shell using TCL/TK

Wiratunga, Nirmalie

62

Wiki-based Techno Economic Analysis of a Lignocellulosic ...  

Biomass and Biofuels Wiki-based Techno Economic Analysis of a Lignocellulosic Biorefinery Lawrence Berkeley National Laboratory. Contact LBL About ...

63

CBM-Gen+: An Algorithm for Reducing Case Base Inconsistencies in Hierarchical and Incomplete Domains  

E-Print Network (OSTI)

formulated case base maintenance (CBM) policies for reducing the size of the case base without losingCBM-Gen+: An Algorithm for Reducing Case Base Inconsistencies in Hierarchical and Incomplete Lehigh University Bethlehem, PA 18015,USA {kex2,hem4}@ lehigh.edu Abstract. We propose an algorithm, CBM

Muñoz-Avila, Héctor

64

Federal Energy Management Program: Case Study - Hill Air Force Base, Utah  

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

Case Study - Hill Case Study - Hill Air Force Base, Utah to someone by E-mail Share Federal Energy Management Program: Case Study - Hill Air Force Base, Utah on Facebook Tweet about Federal Energy Management Program: Case Study - Hill Air Force Base, Utah on Twitter Bookmark Federal Energy Management Program: Case Study - Hill Air Force Base, Utah on Google Bookmark Federal Energy Management Program: Case Study - Hill Air Force Base, Utah on Delicious Rank Federal Energy Management Program: Case Study - Hill Air Force Base, Utah on Digg Find More places to share Federal Energy Management Program: Case Study - Hill Air Force Base, Utah on AddThis.com... Energy Savings Performance Contracts Assistance & Contacts Resources Laws & Regulations Energy Service Companies Awarded Projects

65

Agent-Based vs. Equation-based Epidemiological Models:A Model Selection Case Study  

SciTech Connect

This paper is motivated by the need to design model validation strategies for epidemiological disease-spread models. We consider both agent-based and equation-based models of pandemic disease spread and study the nuances and complexities one has to consider from the perspective of model validation. For this purpose, we instantiate an equation based model and an agent based model of the 1918 Spanish flu and we leverage data published in the literature for our case- study. We present our observations from the perspective of each implementation and discuss the application of model-selection criteria to compare the risk in choosing one modeling paradigm to another. We conclude with a discussion of our experience and document future ideas for a model validation framework.

Sukumar, Sreenivas R [ORNL; Nutaro, James J [ORNL

2012-01-01T23:59:59.000Z

66

Case Studies in Failure Analysis: From Civilian Structures to Dies ...  

Science Conference Proceedings (OSTI)

Analysis of a Bucketwheel Stacker Reclaimer Structural Failure · Analysis of Glass Breakage · Analysis of Sealed, Integrated, Automotive Wheel Bearings.

67

Observing Strategy and Observation Targeting for Tropical Cyclones Using Ensemble-Based Sensitivity Analysis and Data Assimilation  

Science Conference Proceedings (OSTI)

An ensemble Kalman filter data assimilation system for the Weather Research and Forecasting Model is used with ensemble-based sensitivity analysis to explore observing strategies and observation targeting for tropical cyclones. The case selected ...

Baoguo Xie; Fuqing Zhang; Qinghong Zhang; Jonathan Poterjoy; Yonghui Weng

2013-05-01T23:59:59.000Z

68

Optimisation-based scheduling: A discrete manufacturing case study  

Science Conference Proceedings (OSTI)

This work presents the development and implementation of a production scheduling system for an electrical appliance manufacturer. Based on recent advances in optimisation-based scheduling approaches, two different software architectures based on two ... Keywords: Discrete manufacturing, Electrical appliances, Mixed-integer linear programming, Optimization-based scheduling

Michael C. Georgiadis; Aaron A. Levis; Panagiotis Tsiakis; Ioannis Sanidiotis; Constantinos C. Pantelides; Lazaros G. Papageorgiou

2005-08-01T23:59:59.000Z

69

Existence and stability results based on asymptotic analysis for ...  

E-Print Network (OSTI)

Jan 1, 2012 ... Existence and stability results based on asymptotic analysis for semidefinite linear complementarity problems ... Hector Ram rez C.(hramirez.

70

Session Papers Preliminary Analysis of Ground-Based Microwave...  

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

Analysis of Ground-Based Microwave and Infrared Radiance Observations During the Pilot Radiation OBservation Experiment E. R. Westwater, Y. Han, J. H. Churnside, and J. B....

71

Posters Preliminary Analysis of Ground-Based Microwave and Infrared...  

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

Analysis of Ground-Based Microwave and Infrared Radiance Observations During the Pilot Radiation OBservation Experiment E. R. Westwater, Y. Han, J. H. Churnside, and J. B....

72

Finite Element Based Stress Analysis and Optimization of Crankshaft  

Science Conference Proceedings (OSTI)

Results achieved from aforementioned analysis were used in optimization of the ... Phase Transformations Based on a Grain Boundary and Interfacial Energy ...

73

Banshee: a scalable constraint-based analysis toolkit  

Science Conference Proceedings (OSTI)

We introduce Banshee, a toolkit for constructing constraint-based analyses. Banshee's novel features include a code generator for creating customized constraint resolution engines, incremental analysis based on backtracking, and fast persistence. ...

John Kodumal; Alex Aiken

2005-09-01T23:59:59.000Z

74

Global Trade Analysis Project (GTAP) Data Base | Open Energy Information  

Open Energy Info (EERE)

Global Trade Analysis Project (GTAP) Data Base Global Trade Analysis Project (GTAP) Data Base Jump to: navigation, search Tool Summary Name: GTAP 6 Data Base Agency/Company /Organization: Purdue University Sector: Energy Topics: Policies/deployment programs, Co-benefits assessment, - Macroeconomic, Pathways analysis Resource Type: Dataset Website: www.gtap.agecon.purdue.edu/databases/v6/default.asp GTAP 6 Data Base Screenshot References: GTAP Data Base[1] "The GTAP Data Base is a fully documented, publicly available global data base which contains complete bilateral trade information, transport and protection linkages among 113 regions for all 57 GTAP commodities for a single year. " GTAP 6 Data Base "Includes: Updated data base corresponds to the global economy in 2001 Additional regional disaggregation (87 regions and 57 sectors),

75

Thermal Analysis and Stress Analysis of the Heat-Exchange Pipe Based on ANSYS  

Science Conference Proceedings (OSTI)

ANSYS to be as a finite element analysis software has powerful features in thermal analysis and structural analysis. Based on ANSYS thermal analysis function, this paper selects SOLID90 unit, for thermal analysis on the heat-exchange pipe of heat exchanger ... Keywords: ANSYS, temperature distribution, stress distribution

Fenhua Li; Jian Xing; Yuan Liu

2011-04-01T23:59:59.000Z

76

Building Energy Performance Analysis of an Academic Building Using IFC BIM-Based Methodology  

E-Print Network (OSTI)

This paper discusses the potential to use an Industry Foundation Classes (IFC)/Building Information Modelling (BIM) based method to undertake Building Energy Performance analysis of an academic building. BIM/IFC based methodology provides a mechanism for providing quick and cost-effective feedback to building users. The paper discusses the need for IFC and BIM-based analysis of existing buildings. A case study of Building Energy Performance Analysis of an academic building is presented with a detailed discussion on various interventions undertaken to calibrate the model. The paper concludes that BIM/IFC based approaches provide a feasible alternative to conduct energy analysis of existing buildings provided various correlations are built into the model.

Aziz, Z.; Arayici, Y.; Shivachev, D.

2012-01-01T23:59:59.000Z

77

Geographically Based Hydrogen Demand and Infrastructure Analysis  

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

Analysis Analysis Prepared for: 2010-2025 H2 Scenario Analysis Meeting Margo Melendez - NREL 2 Disclaimer and Government License This work has been authored by Midwest Research Institute (MRI) under Contract No. DE-AC36- 99GO10337 with the U.S. Department of Energy (the "DOE"). The United States Government (the "Government") retains and the publisher, by accepting the work for publication, acknowledges that the Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for Government purposes. Neither MRI, the DOE, the Government, nor any other agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any liability

78

Value based analysis of acquisition portfolios  

E-Print Network (OSTI)

Currently, program-funding allocation is based on program performance. Funding cuts commonly lead to a poor reflection on the program management assigned to the given program. If additional factors such as program risk and ...

Burgess, Cheri Nicole Markt

2010-01-01T23:59:59.000Z

79

Lexicon-based methods for sentiment analysis  

Science Conference Proceedings (OSTI)

We present a lexicon-based approach to extracting sentiment from text. The Semantic Orientation CALculator (SO-CAL) uses dictionaries of words annotated with their semantic orientation (polarity and strength), and incorporates intensification and negation. ...

Maite Taboada; Julian Brooke; Milan Tofiloski; Kimberly Voll; Manfred Stede

2011-06-01T23:59:59.000Z

80

Vibrational analysis of graphene based nanostructures  

Science Conference Proceedings (OSTI)

This paper deals with the molecular mechanics simulations of graphene nanostructures and their vibration behavior for potential applications on nano-electronics and nanocomposites. The fundamental frequencies for CNTs range from 10 to 250GHz and 100 ... Keywords: Carbon nanotubes, Graphene nanosheets, Modal analysis, Molecular mechanics, Vibration

Antonio F. Ávila; Alexandre C. Eduardo; Almir S. Neto

2011-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Two case studies in grammar-based test generation  

Science Conference Proceedings (OSTI)

Grammar-based test generation (GBTG) has seen extensive study and practical use since the 1970s. GBTG was introduced to generate source code for testing compilers from context-free grammars specifying language syntax. More recently, GBTG has been applied ... Keywords: Automated testing, Covering array, Grammar-based test generation, Really Simple Syndication (RSS), TCP, eXtended Markup Language (XML)

Daniel Hoffman; Hong-Yi Wang; Mitch Chang; David Ly-Gagnon; Lewis Sobotkiewicz; Paul Strooper

2010-12-01T23:59:59.000Z

82

Case-based Reasoning Enabling Database Mining for Cryo-Preserving Algae Applications  

Science Conference Proceedings (OSTI)

Case-based Reasoning's (CBR) origins were stimulated by a desire to understand how people remember information and are in turn reminded of information, and that subsequently it was recognized that people commonly solve problems by remembering how they ... Keywords: Case-based Reasoning, algal, cryopreservation, COBRA, CBR

Jun Wang; Huiqin Ren

2011-09-01T23:59:59.000Z

83

Paraconsistent Case-Based Reasoning Applied to a Restoration of Electrical Power Substations  

Science Conference Proceedings (OSTI)

This paper presents a connection of two techniques applied in Artificial Intelligence to solve problems of restoration of electrical power substations. The techniques are: Case-based Reasoning --- CBR and the Four-Valued Annotated Paraconsistent Logic ... Keywords: CBR, Case-based Reasoning, Decision Support System, Intelligent System, Paraconsistent Logic, Restoration of Electrical Power Substations

Helga Gonzaga Martins; Germano Lambert-Torres; Luiz Eduardo Borges Da Silva; Claudio Inácio Almeida Costa; Maurilio Pereira Coutinho

2008-10-01T23:59:59.000Z

84

Worst-case distribution analysis of stochastic programs  

E-Print Network (OSTI)

Sep 27, 2004 ... Abstract: We show that for even quasi-concave objective functions the worst-case distribution, with respect to a family of unimodal distributions, ...

85

Statistical Analysis of the Fourth Case Study in Reverse Auction Research  

E-Print Network (OSTI)

Participating in an auction and winning items by placing bids has been in practice since at least 500 B.C. Auctions have evolved since then and anyone can now participate in one online and buy items ranging from clothes, electronics, automobiles and homes using online auction websites, such as eBay. A Reverse Auction varies from the traditional style of Auction where items or services are won by placing successive higher bids until the auction ends. The study of Reverse Auction was first introduced to Texas A & M University in 2004 and continues today, using a SQL based web system. This current research provides a detailed statistical analysis of the fourth case study in this long running work. This fourth case study involved the participation of five bidders who had no prior experience in Reverse Auctions. A Microsoft Access database system and ASP web based user interface was developed and used to conduct these initial studies. However, due to the limited capability of the Access system to handle more than a limited number of connections or bidders, a Microsoft SQL database and web system was developed in 2006 and has been used in all subsequent studies. Case studies have involved up to ten participants. The results from the fourth case study show that a Reverse Auction can result in an increase in the average cost of the job to the owner. Also, there is evidence of game play amongst the bidders and against the purchaser that causes their profits to rise as they gain proficiency in the game. This behavior has been termed as 'tacit collision', but it is considered a byproduct of the system and not illegal behavior. This study analyzes the fourth study data to investigate if the behavior termed "tacit collusion" is evident in the bidding data. This analysis is completed by performing a detailed statistical analysis of the bidding data. Analysis of the profit percentages illustrates the different stages of the game play amongst the bidders. This game play behavior is illustrated by plotting average number of bids to the profit made by each bidder. The data clearly suggests that the players became efficient in their bidding strategy, although some bidders are more efficient than others. This observation negates the common conception that Reverse Auctions will result in lowering average costs for the owners. The individual data of bidders for bids and profit reveal why some players were able to obtain higher than average results and why the others were not. This study can be taken further by analyzing the patterns of the successful and unsuccessful players to determine what causes them to gain or lose profits.

Bhalerao, Aneesh Madhao

2011-08-01T23:59:59.000Z

86

Supply chain trust diagnosis (SCTD) using inductive case-based reasoning ensemble (ICBRE): The case of general competence trust diagnosis  

Science Conference Proceedings (OSTI)

General competence trust among supply chain partners, referring to the trust that a partner holds the general ability of fulfilling contracts, is a critical factor to ensure effective cooperation in a supply chain, especially in the current financial ... Keywords: General competence trust, Inductive case-based reasoning ensemble (ICBRE), Supply chain trust diagnosis (SCTD) service

Hui Li; Jie Sun; Jian Wu; Xian-Jun Wu

2012-08-01T23:59:59.000Z

87

Sandia National Laboratories analysis code data base  

Science Conference Proceedings (OSTI)

Sandia National Laboratories, mission is to solve important problems in the areas of national defense, energy security, environmental integrity, and industrial technology. The Laboratories` strategy for accomplishing this mission is to conduct research to provide an understanding of the important physical phenomena underlying any problem, and then to construct validated computational models of the phenomena which can be used as tools to solve the problem. In the course of implementing this strategy, Sandia`s technical staff has produced a wide variety of numerical problem-solving tools which they use regularly in the design, analysis, performance prediction, and optimization of Sandia components, systems and manufacturing processes. This report provides the relevant technical and accessibility data on the numerical codes used at Sandia, including information on the technical competency or capability area that each code addresses, code ``ownership`` and release status, and references describing the physical models and numerical implementation.

Peterson, C.W.

1994-11-01T23:59:59.000Z

88

Usability evaluation of web-based GIS: case study  

Science Conference Proceedings (OSTI)

Dependency of the majority of mankind activities on information and communication technologies in general and on geographic information is increasing rapidly. This is one of the reasons why usability of specialized software tools (GIS) belongs today ... Keywords: computer-human interaction, usability, web-based GIS

Jitka Komarkova; Kamil Jakoubek; Miloslav Hub

2009-12-01T23:59:59.000Z

89

A case study: demands on component-based development  

Science Conference Proceedings (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

90

Software-Based Building Airflow Analysis Tool for Enabling HVAC...  

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

Software-Based Building Airflow Analysis Tool for Enabling HVAC Energy Use Savings in Commercial Buildings Speaker(s): Don Wroblewski Date: March 8, 2013 - 12:00pm Location:...

91

Business Case Slide 32: Regulatory Constraints Analysis (ANL...  

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

Regulatory Constraints Analysis (ANL) - Description Description Enabling activity cross-cutting all potential uses of DU in radiologically unregulated areas Tasks Evaluate...

92

Business Case Slide 33: Regulatory Constraints Analysis (ANL...  

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

Previous Slide Next Slide Table of Contents Regulatory Constraints Analysis (ANL) - Status Status Evaluation of current status completed in FY02 All manufacturing of DU products...

93

On guided model-based analysis for ear biometrics  

Science Conference Proceedings (OSTI)

Ears are a new biometric with a major advantage in that they appear to maintain their structure with increasing age. Current approaches have exploited 2D and 3D images of the ear in human identification. Contending that the ear is mainly a planar shape ... Keywords: Biometrics, Ear biometrics, Ear embryology, Model-based analysis, Occlusion analysis

Banafshe Arbab-Zavar; Mark S. Nixon

2011-04-01T23:59:59.000Z

94

Adaptive time-frequency analysis based on autoregressive modeling  

Science Conference Proceedings (OSTI)

A new adaptive method for discrete time-frequency analysis based on autoregressive (AR) modeling is introduced. The performance of AR modeling often depends upon a good selection of the model order. The predictive least squares (PLS) principle of Rissanen ... Keywords: Adaptive filters, Autoregressive modeling, Least squares methods, Model order, Time-frequency analysis

Antonio H. Costa; Stephan Hengstler

2011-04-01T23:59:59.000Z

95

Ontology-supported case-based reasoning approach for intelligent m-Government emergency response services  

Science Conference Proceedings (OSTI)

There is a critical need to develop a mobile-based emergency response system (MERS) to help reduce risks in emergency situations. Existing systems only provide short message service (SMS) notifications, and the decision support is weak, especially in ... Keywords: Case-based reasoning, Emergency response systems, Information extraction, Mobile-based systems, Ontology, m-Government

Khaled Amailef, Jie Lu

2013-04-01T23:59:59.000Z

96

Dependent component analysis for cosmology: a case study  

Science Conference Proceedings (OSTI)

In this paper, we discuss various dependent component analysis approaches available in the literature and study their performances on the problem of separation of dependent cosmological sources from multichannel microwave radiation maps of the sky. Realisticaly ... Keywords: cosmic microwave background radiation, cosmological source separation, dependent component analysis

Ercan E. Kuruoglu

2010-09-01T23:59:59.000Z

97

AN ANALYSIS OF FORECAST BASED REORDER POINT POLICIES : THE BENEFIT  

E-Print Network (OSTI)

AN ANALYSIS OF FORECAST BASED REORDER POINT POLICIES : THE BENEFIT OF USING FORECASTS Mohamed Zied Ch^atenay-Malabry Cedex, France Abstract: In this paper, we analyze forecast based inventory control policies for a non-stationary demand. We assume that forecasts and the associated uncertainties are given

Paris-Sud XI, Université de

98

Sensor network calculus – a framework for worst case analysis  

Science Conference Proceedings (OSTI)

To our knowledge, at the time of writing no methodology exists to dimension a sensor network so that a worst case traffic scenario can be definitely supported. In this paper, the well known network calculus is tailored so that it can be used as a tool ...

Jens B. Schmitt; Utz Roedig

2005-06-01T23:59:59.000Z

99

The Role of Biomass Based Cogeneration: Case of an Italian Province  

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

The Role of Biomass Based Cogeneration: Case of an Italian Province Speaker(s): Giuseppe Muliere Date: June 23, 2009 - 12:30pm Location: 90-3122 The aim of this work is to analyze...

100

FUTURA: Hybrid System for Electric Load Forecasting by Using Case-Based Reasoning and Expert System  

Science Conference Proceedings (OSTI)

The results of combining a numeric extrapolation of data with the methodology of case-based reasoning and expert systems in order to improve the electric load forecasting are presented in this contribution. Registers of power consumption are stored as ...

Raúl Vilcahuamán; Joaquim Meléndez; Josep Lluis de la Rosa

2002-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

International Smart Grid Demonstration Project Case Studies and Survey Analysis  

Science Conference Proceedings (OSTI)

Electric utilities around the world are assessing the technical issues and the prospective benefits and costs of modernizing the electric grid. This report summarizes research conducted on international smart grid demonstrations that were tasked with communicating results and lessons learned, and it highlights three case studies where this information has been conveyed. The research involved a literature review of publicly available information and a smart grid international survey answered by ...

2013-03-27T23:59:59.000Z

102

An approach to model validation and model-based prediction -- polyurethane foam case study.  

Science Conference Proceedings (OSTI)

Enhanced software methodology and improved computing hardware have advanced the state of simulation technology to a point where large physics-based codes can be a major contributor in many systems analyses. This shift toward the use of computational methods has brought with it new research challenges in a number of areas including characterization of uncertainty, model validation, and the analysis of computer output. It is these challenges that have motivated the work described in this report. Approaches to and methods for model validation and (model-based) prediction have been developed recently in the engineering, mathematics and statistical literatures. In this report we have provided a fairly detailed account of one approach to model validation and prediction applied to an analysis investigating thermal decomposition of polyurethane foam. A model simulates the evolution of the foam in a high temperature environment as it transforms from a solid to a gas phase. The available modeling and experimental results serve as data for a case study focusing our model validation and prediction developmental efforts on this specific thermal application. We discuss several elements of the ''philosophy'' behind the validation and prediction approach: (1) We view the validation process as an activity applying to the use of a specific computational model for a specific application. We do acknowledge, however, that an important part of the overall development of a computational simulation initiative is the feedback provided to model developers and analysts associated with the application. (2) We utilize information obtained for the calibration of model parameters to estimate the parameters and quantify uncertainty in the estimates. We rely, however, on validation data (or data from similar analyses) to measure the variability that contributes to the uncertainty in predictions for specific systems or units (unit-to-unit variability). (3) We perform statistical analyses and hypothesis tests as a part of the validation step to provide feedback to analysts and modelers. Decisions on how to proceed in making model-based predictions are made based on these analyses together with the application requirements. Updating modifying and understanding the boundaries associated with the model are also assisted through this feedback. (4) We include a ''model supplement term'' when model problems are indicated. This term provides a (bias) correction to the model so that it will better match the experimental results and more accurately account for uncertainty. Presumably, as the models continue to develop and are used for future applications, the causes for these apparent biases will be identified and the need for this supplementary modeling will diminish. (5) We use a response-modeling approach for our predictions that allows for general types of prediction and for assessment of prediction uncertainty. This approach is demonstrated through a case study supporting the assessment of a weapons response when subjected to a hydrocarbon fuel fire. The foam decomposition model provides an important element of the response of a weapon system in this abnormal thermal environment. Rigid foam is used to encapsulate critical components in the weapon system providing the needed mechanical support as well as thermal isolation. Because the foam begins to decompose at temperatures above 250 C, modeling the decomposition is critical to assessing a weapons response. In the validation analysis it is indicated that the model tends to ''exaggerate'' the effect of temperature changes when compared to the experimental results. The data, however, are too few and to restricted in terms of experimental design to make confident statements regarding modeling problems. For illustration, we assume these indications are correct and compensate for this apparent bias by constructing a model supplement term for use in the model-based predictions. Several hypothetical prediction problems are created and addressed. Hypothetical problems are used because no guidance was provided concern

Dowding, Kevin J.; Rutherford, Brian Milne

2003-07-01T23:59:59.000Z

103

As the Wind Blows? Understanding Hurricane Damages at the Local Level Through a Case Study Analysis  

Science Conference Proceedings (OSTI)

An understanding of the potential drivers of local scale hurricane losses is developed through a case study analysis. Two recent Category Three US landfalling hurricanes (Ivan in 2004 and Dennis in 2005) are analyzed that, although similar in ...

Jeffrey Czajkowski; James Done

104

The Interaction of Katabatic Flow and Mountain Waves. Part II: Case Study Analysis and Conceptual Model  

Science Conference Proceedings (OSTI)

Via numerical analysis of detailed simulations of an early September 1993 case night, the authors develop a conceptual model of the interaction of katabatic flow in the nocturnal boundary layer with mountain waves (MKI). A companion paper (Part I)...

Gregory S. Poulos; James E. Bossert; Thomas B. McKee; Roger A. Pielke Sr.

2007-06-01T23:59:59.000Z

105

Solar heating and cooling of housing : five institutional analysis case studies  

E-Print Network (OSTI)

This paper is one of a series resulting from institutional analysis of photovoltaic (PV) acceptance. The case studies reported here involve use of solar thermal technologies in variuos residential settings. All of the ...

Nutt-Powell, Thomas E.

1979-01-01T23:59:59.000Z

106

Sensitivity Analysis of Convection of the 24 May 2002 IHOP Case Using Very Large Ensembles  

Science Conference Proceedings (OSTI)

This paper introduces the use of very large ensembles for detailed sensitivity analysis and applies this technique to study the sensitivity of model forecast rainfall to initial boundary layer and soil moisture fields for a particular case from ...

William J. Martin; Ming Xue

2006-01-01T23:59:59.000Z

107

Agent-Based Modeling and Simulation for Hydrogen Transition Analysis  

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

Agent Agent Agent - - Based Modeling Based Modeling and Simulation (ABMS) and Simulation (ABMS) for Hydrogen Transition for Hydrogen Transition Analysis Analysis Marianne Mintz Hydrogen Transition Analysis Workshop US Department of Energy January 26, 2006 Objectives and Scope for Phase 1 2 Analyze the hydrogen infrastructure development as a complex adaptive system using an agent-based modeling and simulation (ABMS) approach Develop an ABMS model to simulate the evolution of that system, spanning the entire H2 supply chain from production to consumption Identify key factors that either promote or inhibit the growth of H2 infrastructure Apply ABMS to get new insights into transition, particularly early transition phase - Dynamic interplay between supply and demand

108

A Cognitive Bias Approach to Feature Selection and Weighting for Case-Based Learners  

Science Conference Proceedings (OSTI)

Research in psychology, psycholinguistics, and cognitive science has discovered and examined numerous psychological constraints on human information processing. Short term memory limitations, a focus of attention bias, and a preference for the use of ... Keywords: case-based learning, feature set selection, feature weighting, instance-based learning, natural language learning

Claire Cardie

2000-10-01T23:59:59.000Z

109

Free-Ridership in the Standards-Setting Process: The Case of 10BaseT  

E-Print Network (OSTI)

Free-Ridership in the Standards-Setting Process: The Case of 10BaseT Martin B.H. Weiss Ronald T to their non-exclusionary nature, are subject to free riders. In this paper, we consider free ridership that free-ridership existed in the development of the 10BaseT standard and in the subsequent product market

110

Developing an energy-saving and case-based reasoning information agent with Web service and ontology techniques  

Science Conference Proceedings (OSTI)

Web service and ontology techniques are presented herein for supporting an energy-saving and case-based reasoning information agent. The proposed system is the first energy-saving and case-based reasoning information agent with Web service and ontology ... Keywords: Case-based reasoning agents, Energy-saving information systems, Ontology, Web services

Sheng-Yuan Yang

2013-07-01T23:59:59.000Z

111

Elementary Yet Precise Worst-Case Analysis of Floyd's Heap-Construction Program  

Science Conference Proceedings (OSTI)

The worst-case behavior of the heap-construction phase of Heapsort escaped mathematically precise characterization by a closed-form formula for almost five decades. This paper offers a proof that the exact number of comparisons of keys performed in the ... Keywords: Heapsort, sum of digits, worst-case analysis

Marek A. Suchenek

2012-01-01T23:59:59.000Z

112

Physics-based seismic hazard analysis on petascale heterogeneous supercomputers  

Science Conference Proceedings (OSTI)

We have developed a highly scalable and efficient GPU-based finite-difference code (AWP) for earthquake simulation that implements high throughput, memory locality, communication reduction and communication/computation overlap and achieves linear scalability ... Keywords: CyberShake, GPU, SCEC, earthquake ground motions, hybrid heterogeneous, seismic hazard analysis, weak scaling

Y. Cui, E. Poyraz, K. B. Olsen, J. Zhou, K. Withers, S. Callaghan, J. Larkin, C. Guest, D. Choi, A. Chourasia, Z. Shi, S. M. Day, P. J. Maechling, T. H. Jordan

2013-11-01T23:59:59.000Z

113

Low Dose Radiation Research Program: Biologically Based Analysis of Lung  

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

Biologically Based Analysis of Lung Cancer Incidence in a Large Biologically Based Analysis of Lung Cancer Incidence in a Large Canadian Occupational Cohort with Low-LET Low-dose Radiation Exposure, and Comparison with Japanese Atomic Bomb Survivors. Authors: W.D. Hazelton, D. Krewski, S.H. Moolgavkar Lung cancer incidence is analyzed in a large Canadian National Dose Registry (CNDR) cohort with individual annual dosimetry for low-dose occupational exposure to gamma and tritium radiation using several types of multistage models. The primary analysis utilizes the two-stage clonal expansion model (TSCE), with sensitivity analyses using extensions of this model incorporating additional stages. Characteristic and distinct temporal patterns of risk are found for dose-response affecting early, middle, or late stages of carcinogenesis, e.g., initiation with one or more stages,

114

Introducing comparative analysis to the LEED system: A case forrational and regional application  

Science Conference Proceedings (OSTI)

The LEED(TM) system awards points for prescriptive andperformance based environmental strategies; rightly giving more weight todecisions affecting building operations, since environmental impacts overthe life of a building exceed the one-time environmental impacts affectedby the building s construction. The environmental benefits of LEED(TM)strategies are considered implicit and the point system is not a metricof environmental performance. Thus, guideline strategies that achieve thesame points may not have analogous environmental performance. This paperdraws from our LEED(TM) project experience as certified consultants to anumber of design teams. We applied analysis to those experiences andargue that -The relative environmental value of the same LEED(TM)strategy may vary by geographical region and by building type. -Scoringsuccessive LEED(TM) points beyond a 'standard practice design'significantly increases design effort and capital costs for construction.-Without comparative analysis of the costs of alternate LEED(TM)strategies and their corresponding environmental benefit, designers willnot necessarily invest capital in strategies that most profoundlyminimize the environmental impacts of a building. -For design teams andowners interested in the least expensive LEED(TM) certification, gamingthe point system could drive investment away from sound environmentalperformance strategies such as energy efficiency. Using these arguments,this paper makes a case to enhance the LEED(TM) system by -CategorizingLEED(TM) strategies by their direct or indirect value towardsEnvironmental Benefit, Healthy Buildings (Places), and Profitability.-Reformulating prescriptive requirements into performance basedrequirements wherever possible. -Customizing LEED(TM) guidelines byregion.

Eijadi, David; Vaidya, Prausad; Reinertsen, James; Kumar, Satish

2002-06-01T23:59:59.000Z

115

2.0 Closed-Domain Hydrate Dissociation (Base Case w/ Hydrate  

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

Closed-Domain Hydrate Dissociation (Base Case w/ Hydrate) Closed-Domain Hydrate Dissociation (Base Case w/ Hydrate) 2.1 Problem Description One half of a 20-m, one-dimensional horizontal domain, discretized using uniformly spaced 1-m grid cells (optionally 0.1-m grid cells) is initialized with aqueous-hydrate conditions; whereas, the other half of the domain is initialized with gas-aqueous conditions. As with the Base Case problem, a closed horizontal domain is used to eliminate gravitational body forces and boundary condition effects. The initial conditions are specified to yield complete dissociation of the hydrate, via the thermal capacitance of the domain-half initialized with gas-aqueous conditions. To initialize the aqueous-hydrate half of the domain, temperature, pressure, and hydrate saturation are

116

Geographically Based Hydrogen Consumer Demand and Infrastructure Analysis: Final Report  

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

Geographically Based Hydrogen Geographically Based Hydrogen Consumer Demand and Infrastructure Analysis Final Report M. Melendez and A. Milbrandt Technical Report NREL/TP-540-40373 October 2006 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 Geographically Based Hydrogen Consumer Demand and Infrastructure Analysis Final Report M. Melendez and A. Milbrandt Prepared under Task No. HF65.8310 Technical Report NREL/TP-540-40373 October 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

117

Numerical Relativity meets Data Analysis: Spinning Binary Black Hole Case  

E-Print Network (OSTI)

We present a study of the gravitational waveforms from a series of spinning, equal-mass black hole binaries focusing on the harmonic content of the waves and the contribution of the individual harmonics to the signal-to-noise ratio. The gravitational waves were produced from two series of evolutions with black holes of initial spins equal in magnitude and anti-aligned with each other. In one series the magnitude of the spin is varied; while in the second, the initial angle between the black-hole spins and the orbital angular momentum varies. We also conduct a preliminary investigation into using these waveforms as templates for detecting spinning binary black holes. Since these runs are relativity short, containing about two to three orbits, merger and ringdown, we limit our study to systems of total mass greater than 50 solar masses. This choice ensures that our waveforms are present in the ground-based detector band without needing addition gravitational wave cycles. We find that while the mode contribution to the signal-to-noise ratio varies with the initial angle, the total mass of the system caused greater variations in the match.

Deirdre Shoemaker; Birjoo Vaishnav; Ian Hinder; Frank Herrmann

2008-02-29T23:59:59.000Z

118

Case-based techniques used for dialogue understanding and planning in a human-robot dialogue system  

Science Conference Proceedings (OSTI)

We describe an approach to the use of case-based techniques for natural language understanding and for action planning in a system for dialogue between a human and a robot, which in our case is a UAV (unmanned aerial vehicle). A single case base and ...

Karolina Eliasson

2007-01-01T23:59:59.000Z

119

GIS-based land-use suitability analysis: a critical overview  

E-Print Network (OSTI)

There are three main objectives of this monograph: (i) to provide an introduction to geographical information technology along with an historical perspective on the evolving role of Geographic Information Systems (GIS) in planning, (ii) to overview relevant methods and techniques for GISbased land-use suitability mapping and modeling, and (iii) to identify the trends, challenges and prospects of GIS-based land-use suitability analysis. The monograph focuses on two perspectives of GIS-based land-use suitability analysis: the techno-positivist perspective and the socio-political, public participation perspectives. It is organized into six chapters. After an introductory setting chapter, which defines the scope of land-use suitability analysis, an overview of relevant GIS technology is provided in Chapter 2. Chapter 3 offers an historical account of the development of GIS. It also discusses the development of GIS in the context of evolving perspectives of planning. Chapter 4 gives an overview of the methods for GIS-based land-use suitability modeling. The overview provides a background against which selected case studies are discussed in Chapter 5. The concluding chapter summarized the main points of the monographs and discusses problems and prospects for GIS-based land-use suitability analysis.

Jacek Malczewski

2004-01-01T23:59:59.000Z

120

The Iron Age & Coal-based Coke: A Neglected Case of Fossil-fuel Dependence  

E-Print Network (OSTI)

The Iron Age & Coal-based Coke: A Neglected Case of Fossil-fuel Dependence by Vaclav Smil September share of their primary energies from renewable sources. Steel & Coal-Derived Coke Here is another important: steel's fundamental dependence on coal-derived coke with no practical substitutes on any rational

Smil, Vaclav

Note: This page contains sample records for the topic "analysis base cases" 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

Community-Based Incentives for Environmental Protection: The Case of Green Electricity*  

E-Print Network (OSTI)

the Connecticut Clean Energy Communities (CCEC) program that provides mostly symbolic rewards in the formCommunity-Based Incentives for Environmental Protection: The Case of Green Electricity* Grant the period of initial qualification. We also find that a change in the marginal incentive created

Kotchen, Matthew J.

122

Knowledge representation and case-based reasoning in a knowledge management system for ambient intelligence products  

Science Conference Proceedings (OSTI)

The paper presents the theoretical background and realization of a KM system for the technically advanced customer and product support in the Ambient Intelligence (AmI) domain. Current products include more and more elements of AmI. AmI area is still ... Keywords: ambient intelligence, case-based reasoning, customer support system, diagnostics system, knowledge management system, knowledge representation

Ljubisa Urosevic; Sandor Kopacsi; Dragan Stokic; Ana Rita Campos; Geza Bognar

2006-02-01T23:59:59.000Z

123

ONCO-i2b2: improve patients selection through case-based information retrieval techniques  

Science Conference Proceedings (OSTI)

The University of Pavia (Italy) and the IRCCS Fondazione Salvatore Maugeri hospital in Pavia have recently started an information technology initiative to support clinical research in oncology called ONCO-i2b2. This project aims at supporting translational ... Keywords: case-based reasoning, i2b2, oncology

Daniele Segagni; Matteo Gabetta; Valentina Tibollo; Alberto Zambelli; Silvia G. Priori; Riccardo Bellazzi

2012-06-01T23:59:59.000Z

124

Building a case-based diet recommendation system without a knowledge engineer  

Science Conference Proceedings (OSTI)

We present a new approach to the effective development of menu construction systems that allow to automatically construct a menu that is strongly tailored to the individual requirements and food preferences of a client. In hospitals and other health ... Keywords: Case-based reasoning, Dietary menu construction, Knowledge acquisition, Ripple-down rules

Abdus Salam Khan; Achim Hoffmann

2003-02-01T23:59:59.000Z

125

Independent component analysis based filtering for penumbral imaging  

Science Conference Proceedings (OSTI)

We propose a filtering based on independent component analysis (ICA) for Poisson noise reduction. In the proposed filtering, the image is first transformed to ICA domain and then the noise components are removed by a soft thresholding (shrinkage). The proposed filter, which is used as a preprocessing of the reconstruction, has been successfully applied to penumbral imaging. Both simulation results and experimental results show that the reconstructed image is dramatically improved in comparison to that without the noise-removing filters.

Chen Yenwei; Han Xianhua; Nozaki, Shinya [College of Information Science and Engineering, Ritsumeikan University, Shiga 525-8577 (Japan); Institute of Computational Science and Engineering, Ocean University of China, Shandong (China); Faculty of Engineering, University of the Ryukyus, Okinawa 903-0213 (Japan); Okinawa National College of Technology, Okinawa (Japan)

2004-10-01T23:59:59.000Z

126

Statistical GPU power analysis using tree-based methods  

Science Conference Proceedings (OSTI)

Graphics Processing Units (GPUs) have emerged as a promising platform for parallel computation. With a large number of scalar processors and abundant memory bandwidth, GPUs provide substantial computation power. While delivering high computation performance, ... Keywords: GTX 280 GPU, statistical GPU power analysis, parallel computation, scalar processors, memory bandwidth, computation power, power supplies, cooling systems, power consumption requirement, high-level GPU power consumption model, tree-based random Statistical forest methods, GPU runtime power consumption, performance metrics, GPU simulator, CUDA kernels

Jianmin Chen; Bin Li; Ying Zhang; Lu Peng; Jih-kwon Peir

2011-07-01T23:59:59.000Z

127

Tariff-based analysis of commercial building electricityprices  

Science Conference Proceedings (OSTI)

This paper presents the results of a survey and analysis ofelectricity tariffs and marginal electricity prices for commercialbuildings. The tariff data come from a survey of 90 utilities and 250tariffs for non-residential customers collected in 2004 as part of theTariff Analysis Project at LBNL. The goals of this analysis are toprovide useful summary data on the marginal electricity prices commercialcustomers actually see, and insight into the factors that are mostimportant in determining prices under different circumstances. We providea new, empirically-based definition of several marginal prices: theeffective marginal price and energy-only anddemand-only prices, andderive a simple formula that expresses the dependence of the effectivemarginal price on the marginal load factor. The latter is a variable thatcan be used to characterize the load impacts of a particular end-use orefficiency measure. We calculate all these prices for eleven regionswithin the continental U.S.

Coughlin, Katie M.; Bolduc, Chris A.; Rosenquist, Greg J.; VanBuskirk, Robert D.; McMahon, James E.

2008-03-28T23:59:59.000Z

128

Climatology-Calibrated Precipitation Analysis at Fine Scales: Statistical Adjustment of Stage IV towards CPC Gauge Based Analysis  

Science Conference Proceedings (OSTI)

Two widely used precipitation analyses are the CPC Unified Global Daily Gauge Analysis and Stage IV analysis based on quantitative precipitation estimate with multi-sensor observations. The Former is based on gauge records with a uniform quality ...

Dingchen Hou; Mike Charles; Yan Luo; Zoltan Toth; Yuejian Zhu; Roman Krzysztofowicz; Ying Lin; Pingping Xie; Dong-Jun Seo; Malaquias Pena; Bo Cui

129

SCANS (Shipping Cask ANalysis System) a microcomputer-based analysis system for shipping cask design review: User`s manual to Version 3a. Volume 1, Revision 2  

SciTech Connect

SCANS (Shipping Cask ANalysis System) is a microcomputer-based system of computer programs and databases developed at the Lawrence Livermore National Laboratory (LLNL) for evaluating safety analysis reports on spent fuel shipping casks. SCANS is an easy-to-use system that calculates the global response to impact loads, pressure loads and thermal conditions, providing reviewers with an independent check on analyses submitted by licensees. SCANS is based on microcomputers compatible with the IBM-PC family of computers. The system is composed of a series of menus, input programs, cask analysis programs, and output display programs. All data is entered through fill-in-the-blank input screens that contain descriptive data requests. Analysis options are based on regulatory cases described in the Code of Federal Regulations 10 CFR 71 and Regulatory Guides published by the US Nuclear Regulatory Commission in 1977 and 1978.

Mok, G.C.; Thomas, G.R.; Gerhard, M.A.; Trummer, D.J.; Johnson, G.L. [Lawrence Livermore National Lab., CA (United States)

1998-03-01T23:59:59.000Z

130

Security Analysis and Improvement Model for Web-based Applications  

E-Print Network (OSTI)

Today the web has become a major conduit for information. As the World Wide Web?s popularity continues to increase, information security on the web has become an increasing concern. Web information security is related to availability, confidentiality, and data integrity. According to the reports from http://www.securityfocus.com in May 2006, operating systems account for 9% vulnerability, web-based software systems account for 61% vulnerability, and other applications account for 30% vulnerability. In this dissertation, I present a security analysis model using the Markov Process Model. Risk analysis is conducted using fuzzy logic method and information entropy theory. In a web-based application system, security risk is most related to the current states in software systems and hardware systems, and independent of web application system states in the past. Therefore, the web-based applications can be approximately modeled by the Markov Process Model. The web-based applications can be conceptually expressed in the discrete states of (web_client_good; web_server_good, web_server_vulnerable, web_server_attacked, web_server_security_failed; database_server_good, database_server_vulnerable, database_server_attacked, database_server_security_failed) as state space in the Markov Chain. The vulnerable behavior and system response in the web-based applications are analyzed in this dissertation. The analyses focus on functional availability-related aspects: the probability of reaching a particular security failed state and the mean time to the security failure of a system. Vulnerability risk index is classified in three levels as an indicator of the level of security (low level, high level, and failed level). An illustrative application example is provided. As the second objective of this dissertation, I propose a security improvement model for the web-based applications using the GeoIP services in the formal methods. In the security improvement model, web access is authenticated in role-based access control using user logins, remote IP addresses, and physical locations as subject credentials to combine with the requested objects and privilege modes. Access control algorithms are developed for subjects, objects, and access privileges. A secure implementation architecture is presented. In summary, the dissertation has developed security analysis and improvement model for the web-based application. Future work will address Markov Process Model validation when security data collection becomes easy. Security improvement model will be evaluated in performance aspect.

Wang, Yong

2008-12-01T23:59:59.000Z

131

Techno-Economic Analysis of Biofuels Production Based on Gasification  

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

Biofuels Production Based on Biofuels Production Based on Gasification Ryan M. Swanson, Justinus A. Satrio, and Robert C. Brown Iowa State University Alexandru Platon ConocoPhillips Company David D. Hsu National Renewable Energy Laboratory Technical Report NREL/TP-6A20-46587 November 2010 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Techno-Economic Analysis of Biofuels Production Based on Gasification Ryan M. Swanson, Justinus A. Satrio, and Robert C. Brown Iowa State University Alexandru Platon

132

Techno-Economic Analysis of Biofuels Production Based on Gasification  

DOE Green Energy (OSTI)

This study compares capital and production costs of two biomass-to-liquid production plants based on gasification. The first biorefinery scenario is an oxygen-fed, low-temperature (870?C), non-slagging, fluidized bed gasifier. The second scenario is an oxygen-fed, high-temperature (1,300?C), slagging, entrained flow gasifier. Both are followed by catalytic Fischer-Tropsch synthesis and hydroprocessing to naphtha-range (gasoline blend stock) and distillate-range (diesel blend stock) liquid fractions. Process modeling software (Aspen Plus) is utilized to organize the mass and energy streams and cost estimation software is used to generate equipment costs. Economic analysis is performed to estimate the capital investment and operating costs. Results show that the total capital investment required for nth plant scenarios is $610 million and $500 million for high-temperature and low-temperature scenarios, respectively. Product value (PV) for the high-temperature and low-temperature scenarios is estimated to be $4.30 and $4.80 per gallon of gasoline equivalent (GGE), respectively, based on a feedstock cost of $75 per dry short ton. Sensitivity analysis is also performed on process and economic parameters. This analysis shows that total capital investment and feedstock cost are among the most influential parameters affecting the PV.

Swanson, R. M.; Platon, A.; Satrio, J. A.; Brown, R. C.; Hsu, D. D.

2010-11-01T23:59:59.000Z

133

Reliability-based design optimization using efficient global reliability analysis.  

Science Conference Proceedings (OSTI)

Finding the optimal (lightest, least expensive, etc.) design for an engineered component that meets or exceeds a specified level of reliability is a problem of obvious interest across a wide spectrum of engineering fields. Various methods for this reliability-based design optimization problem have been proposed. Unfortunately, this problem is rarely solved in practice because, regardless of the method used, solving the problem is too expensive or the final solution is too inaccurate to ensure that the reliability constraint is actually satisfied. This is especially true for engineering applications involving expensive, implicit, and possibly nonlinear performance functions (such as large finite element models). The Efficient Global Reliability Analysis method was recently introduced to improve both the accuracy and efficiency of reliability analysis for this type of performance function. This paper explores how this new reliability analysis method can be used in a design optimization context to create a method of sufficient accuracy and efficiency to enable the use of reliability-based design optimization as a practical design tool.

Bichon, Barron J. (Southwest Research Institute, San Antonio, TX); Mahadevan, Sankaran (Vanderbilt University, Nashville, TN); Eldred, Michael Scott

2010-05-01T23:59:59.000Z

134

Test-case generation for embedded simulink via formal concept analysis  

Science Conference Proceedings (OSTI)

Mutation testing suffers from the high computational cost of automated test-vector generation, due to the large number of mutants that can be derived from programs and the cost of generating test-cases in a white-box manner. We propose a novel algorithm ... Keywords: embedded systems, formal concept analysis, mutation testing, simulink

Nannan He; Philipp Rümmer; Daniel Kroening

2011-06-01T23:59:59.000Z

135

Real-time collaborative analysis with (almost) pure SQL: a case study in biogeochemical oceanography  

Science Conference Proceedings (OSTI)

We consider a case study using SQL-as-a-Service to support "instant analysis" of weakly structured relational data at a multi-investigator science retreat. Here, "weakly structured" means tabular, rows-and-columns datasets that share some common context, ...

Daniel Halperin; Francois Ribalet; Konstantin Weitz; Mak A. Saito; Bill Howe; E. Virginia Armbrust

2013-07-01T23:59:59.000Z

136

Heart Rate Regulation processed through wavelet analysis and change detection. Some case studies  

E-Print Network (OSTI)

Heart Rate Regulation processed through wavelet analysis and change detection. Some case studies-mail: veronique.billat@wanadoo.fr December 29, 2010 Abstract Heart rate variability (HRV) is an indicator of the regulation of the heart engine, Task Force (1996). This study compares the regulation of the heart in two

Paris-Sud XI, Université de

137

Impact of globalisation and trade liberalisation on the Indian industry : a case analysis of the Indian pharmaceutical industry.  

E-Print Network (OSTI)

??The study is designed to carry out the impact of trade liberalization and globalisation on the Indian industry with the help of a case analysis… (more)

Vishwajit, Vibha.

2011-01-01T23:59:59.000Z

138

A Reference Based Analysis Framework for Analyzing System Call Traces  

SciTech Connect

Reference based analysis (RBA) is a novel data mining tool for exploring a test data set with respect to a reference data set. The power of RBA lies in it ability to transform any complex data type, such as symbolic sequences and multi-variate categorical data instances, into a multivariate continuous representation. The transformed representation not only allows visualization of the complex data, which cannot be otherwise visualized in its original form, but also allows enhanced anomaly detection in the transformed feature space. We demonstrate the application of the RBA framework in analyzing system call traces and show how the transformation results in improved intrusion detection performance over state of art data mining based intrusion detection methods developed for system call traces.

Chandola, Varun [ORNL; Kumar, Vipin [University of Minnesota; Boriah, Shyam [University of Minnesota

2010-01-01T23:59:59.000Z

139

HBDR: a case-based tool for organizing architectural information on historic building designs  

E-Print Network (OSTI)

Learning about previous design projects is a very important part of the study of architecture as well as the process of design. Historic preservation, a branch of architecture, is not an exception to this rule. In the field of historic preservation, information regarding previous design projects is available in the form of historic photographs, measured drawings, details, descriptive text and notes. This information is currently available from different sources. It must be organized to enable effective use for the student community. Case-based representation and learning systems can be used to arrange and define the case study information. In this research, I have collected and categorized information about previous historic building designs. As a part of the research, I have developed software through which the information can be made available to students at one platform. The software also captures student's comments about each case, which may be beneficial to the student's learning experience. The software has been tested by graduate students in a historic presentation course. The tests show that the software aids students in obtaining answers more quickly and with greater accuracy than paper-based descriptions of cases.

Mulye, Leena

2002-01-01T23:59:59.000Z

140

Case Study Walnut Hill United Methodist Church - Dallas, Texas, Chiller Replacement Analysis  

E-Print Network (OSTI)

In March of 1992 Walnut Hill United Methodist Church in Dallas, Tx. decided that their existing thermal storage and electric reciprocating chiller system were both in need of replacement. After analyzing several options, they chose to install 150 tons of gas-fired double-effect absorption chillers. This case study will show the original HVAC operation cost analysis and compare it to the present day operation costs and it will describe how unexpected changes occurred that caused the initial analysis to be questioned. Finally, this case study will show how today's operational costs are lower than originally projected. This presentation is not about the reasons the church chose this particular system, but about the analysis itself and its accuracy.

Phillips, J.

1998-01-01T23:59:59.000Z

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


141

Feature-Based Statistical Analysis of Combustion Simulation Data  

SciTech Connect

We present a new framework for feature-based statistical analysis of large-scale scientific data and demonstrate its effectiveness by analyzing features from Direct Numerical Simulations (DNS) of turbulent combustion. Turbulent flows are ubiquitous and account for transport and mixing processes in combustion, astrophysics, fusion, and climate modeling among other disciplines. They are also characterized by coherent structure or organized motion, i.e. nonlocal entities whose geometrical features can directly impact molecular mixing and reactive processes. While traditional multi-point statistics provide correlative information, they lack nonlocal structural information, and hence, fail to provide mechanistic causality information between organized fluid motion and mixing and reactive processes. Hence, it is of great interest to capture and track flow features and their statistics together with their correlation with relevant scalar quantities, e.g. temperature or species concentrations. In our approach we encode the set of all possible flow features by pre-computing merge trees augmented with attributes, such as statistical moments of various scalar fields, e.g. temperature, as well as length-scales computed via spectral analysis. The computation is performed in an efficient streaming manner in a pre-processing step and results in a collection of meta-data that is orders of magnitude smaller than the original simulation data. This meta-data is sufficient to support a fully flexible and interactive analysis of the features, allowing for arbitrary thresholds, providing per-feature statistics, and creating various global diagnostics such as Cumulative Density Functions (CDFs), histograms, or time-series. We combine the analysis with a rendering of the features in a linked-view browser that enables scientists to interactively explore, visualize, and analyze the equivalent of one terabyte of simulation data. We highlight the utility of this new framework for combustion science; however, it is applicable to many other science domains.

Bennett, J; Krishnamoorthy, V; Liu, S; Grout, R; Hawkes, E; Chen, J; Pascucci, V; Bremer, P T

2011-11-18T23:59:59.000Z

142

Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility  

Science Conference Proceedings (OSTI)

Many state regulatory commissions and policymakers want utilities to aggressively pursue energy efficiency as a strategy to mitigate demand and energy growth, diversify the resource mix, and provide an alternative to building new, costly generation. However, as the National Action Plan for Energy Efficiency (NAPEE 2007) points out, many utilities continue to shy away from aggressively expanding their energy efficiency efforts when their shareholder's fundamental financial interests are placed at risk by doing so. Thus, there is increased interest in developing effective ratemaking and policy approaches that address utility disincentives to pursue energy efficiency or lack of incentives for more aggressive energy efficiency efforts. New regulatory initiatives to promote increased utility energy efficiency efforts also affect the interests of consumers. Ratepayers and their advocates are concerned with issues of fairness, impacts on rates, and total consumer costs. From the perspective of energy efficiency advocates, the quid pro quo for utility shareholder incentives is the obligation to acquire all, or nearly all, achievable cost-effective energy efficiency. A key issue for state regulators and policymakers is how to maximize the cost-effective energy efficiency savings attained while achieving an equitable sharing of benefits, costs and risks among the various stakeholders. In this study, we modeled a prototypical vertically-integrated electric investor-owned utility in the southwestern US that is considering implementing several energy efficiency portfolios. We analyze the impact of these energy efficiency portfolios on utility shareholders and ratepayers as well as the incremental effect on each party when lost fixed cost recovery and/or utility shareholder incentive mechanisms are implemented. A primary goal of our quantitative modeling is to provide regulators and policymakers with an analytic framework and tools that assess the financial impacts of alternative incentive approaches on utility shareholders and customers if energy efficiency is implemented under various utility operating, cost, and supply conditions.We used and adapted a spreadsheet-based financial model (the Benefits Calculator) which was developed originally as a tool to support the National Action Plan for Energy Efficiency (NAPEE). The major steps in our analysis are displayed graphically in Figure ES- 1. Two main inputs are required: (1) characterization of the utility which includes its initial financial and physical market position, a forecast of the utility?s future sales, peak demand, and resource strategy to meet projected growth; and (2) characterization of the Demand-Side Resource (DSR) portfolio ? projected electricity and demand savings, costs and economic lifetime of a portfolio of energy efficiency (and/or demand response) programs that the utility is planning or considering implementing during the analysis period. The Benefits Calculator also estimates total resource costs and benefits of the DSR portfolio using a forecast of avoided capacity and energy costs. The Benefits Calculator then uses inputs provided in the Utility Characterization to produce a ?business-as usual? base case as well as alternative scenarios that include energy efficiency resources, including the corresponding utility financial budgets required in each case. If a decoupling and/or a shareholder incentive mechanism are instituted, the Benefits Calculator model readjusts the utility?s revenue requirement and retail rates accordingly. Finally, for each scenario, the Benefits Calculator produces several metrics that provides insights on how energy efficiency resources, decoupling and/or a shareholder incentive mechanism impacts utility shareholders (e.g. overall earnings, return on equity), ratepayers (e.g., average customer bills and rates) and society (e.g. net resource benefits).

Cappers, Peter; Goldman, Charles; Chait, Michele; Edgar, George; Schlegel, Jeff; Shirley, Wayne

2009-03-04T23:59:59.000Z

143

A Process-Analysis Based Study of the Ozone Weekend Effect  

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

A Process-Analysis Based Study of the Ozone Weekend Effect Title A Process-Analysis Based Study of the Ozone Weekend Effect Publication Type Journal Article Year of Publication...

144

Case study: Visual analysis of complex, time-dependent simulation results of a diesel exhaust system  

E-Print Network (OSTI)

In previous work we have presented visualization techniques that provide engineers with a high degree of interactivity and flexibility for analyzing large, time-dependent, and high-dimensional data sets resulting from CFD (computational fluid dynamics) simulations. In this case study we apply our techniques in the fields of the automotive engineering industry and demonstrate how users benefit from using them during their routine analysis, as well as for exploring new phenomena. For coping with some of the special requirements in this application, we adapted and extended parts of the system. A comparison of two related cases of a diesel exhaust system is presented, and some important questions about these cases are addressed. 1.

Helmut Doleisch; Michael Mayer; Martin Gasser; Helwig Hauser

2004-01-01T23:59:59.000Z

145

Single-Step Syngas-to-Distillates (S2D) Process Based on Biomass-Derived Syngas – A Techno-Economic Analysis  

Science Conference Proceedings (OSTI)

This study reports the comparison of biomass gasification based syngas-to-distillate (S2D) systems using techno-economic analysis (TEA). Three cases, state of technology (SOT) case, goal case, and conventional case, were compared in terms of performance and cost. The SOT case and goal case represent technology being developed at Pacific Northwest National Laboratory for a process starting with syngas using a single-step dual-catalyst reactor for distillate generation (S2D process). The conventional case mirrors the two-step S2D process previously utilized and reported by Mobil using natural gas feedstock and consisting of separate syngas-to-methanol and methanol-to-gasoline (MTG) processes. Analysis of the three cases revealed that the goal case could indeed reduce fuel production cost over the conventional case, but that the SOT was still more expensive than the conventional. The SOT case suffers from low one-pass yield and high selectivity to light hydrocarbons, both of which drive up production cost. Sensitivity analysis indicated that light hydrocarbon yield, single pass conversion efficiency, and reactor space velocity are the key factors driving the high cost for the SOT case.

Zhu, Yunhua; Jones, Susanne B.; Biddy, Mary J.; Dagle, Robert A.; Palo, Daniel R.

2012-08-01T23:59:59.000Z

146

Survey of sampling-based methods for uncertainty and sensitivity analysis.  

Science Conference Proceedings (OSTI)

Sampling-based methods for uncertainty and sensitivity analysis are reviewed. The following topics are considered: (1) Definition of probability distributions to characterize epistemic uncertainty in analysis inputs, (2) Generation of samples from uncertain analysis inputs, (3) Propagation of sampled inputs through an analysis, (4) Presentation of uncertainty analysis results, and (5) Determination of sensitivity analysis results. Special attention is given to the determination of sensitivity analysis results, with brief descriptions and illustrations given for the following procedures/techniques: examination of scatterplots, correlation analysis, regression analysis, partial correlation analysis, rank transformations, statistical tests for patterns based on gridding, entropy tests for patterns based on gridding, nonparametric regression analysis, squared rank differences/rank correlation coefficient test, two dimensional Kolmogorov-Smirnov test, tests for patterns based on distance measures, top down coefficient of concordance, and variance decomposition.

Johnson, Jay Dean; Helton, Jon Craig; Sallaberry, Cedric J. PhD. (.; .); Storlie, Curt B. (Colorado State University, Fort Collins, CO)

2006-06-01T23:59:59.000Z

147

Disposal criticality analysis for aluminum-based DOE fuels  

SciTech Connect

This paper describes the disposal criticality analysis for canisters containing aluminum-based Department of Energy fuels from research reactors. Different canisters were designed for disposal of highly enriched uranium (HEU) and medium enriched uranium (MEU) fuel. In addition to the standard criticality concerns in storage and transportation, such as flooding, the disposal criticality analysis must consider the degradation of the fuel and components within the waste package. Massachusetts Institute of Technology (MIT) U-Al fuel with 93.5% enriched uranium and Oak Ridge Research Reactor (ORR) U-Si-Al fuel with 21% enriched uranium are representative of the HEU and MEU fuel inventories, respectively. Conceptual canister designs with 64 MIT assemblies (16/layer, 4 layers) or 40 ORR assemblies (10/layer, 4 layers) were developed for these fuel types. Borated stainless steel plates were incorporated into a stainless steel internal basket structure within a 439 mm OD, 15 mm thick XM-19 canister shell. The Codisposal waste package contains 5 HLW canisters (represented by 5 Defense Waste Processing Facility canisters from the Savannah River Site) with the fuel canister placed in the center. It is concluded that without the presence of a fairly insoluble neutron absorber, the long-term action of infiltrating water can lead to a small, but significant, probability of criticality for both the HEU and MEU fuels. The use of 1.5kg of Gd distributed throughout the MIT fuel and the use of carbon steels for the structural basket or 1.1 kg of Gd distributed in the ORR fuel will reduce the probability of criticality to virtually zero for both fuels.

Davis, J.W. [Framatome Cogema Fuels, Las Vegas, NV (United States); Gottlieb, P. [TRW Environmental Safety Systems, Inc., Las Vegas, NV (United States)

1997-11-01T23:59:59.000Z

148

Geography-based structural analysis of the Internet  

SciTech Connect

In this paper, we study some geographic aspects of the Internet. We base our analysis on a large set of geolocated IP hop-level session data (including about 300,000 backbone routers, 150 million end hosts, and 1 billion sessions) that we synthesized from a variety of different input sources such as US census data, computer usage statistics, Internet market share data, IP geolocation data sets, CAJDA's Skitter data set for backbone connectivity, and BGP routing tables. We use this model to perform a nationwide and statewide geographic analysis of the Internet. Our main observations are: (1) There is a dominant coast-to-coast pattern in the US Internet traffic. In fact, in many instances even if the end-devices are not near either coast, still the traffic between them takes a long detour through the coasts. (2) More than half of the Internet paths are inflated by 100% or more compared to their corresponding geometric straight-line distance. This circuitousness makes the average ratio between the routing distance and geometric distance big (around 10). (3) The weighted mean hop count is around 5, but the hop counts are very loosely correlated with the distances. The weighted mean AS count (number of ASes traversed) is around 3. (4) The AS size and the AS location number distributions are heavy-tailed and strongly correlated. Most of the ASes are medium sized and there is a wide variability in the geographic dispersion size (measured in terms of the convex hull area) of these ASes.

Kasiviswanathan, Shiva [Los Alamos National Laboratory; Eidenbenz, Stephan [Los Alamos National Laboratory; Yan, Guanhua [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

149

Space Logistics Modeling and Simulation Analysis using SpaceNet: Four Application Cases  

E-Print Network (OSTI)

The future of space exploration will not be limited to sortie-style missions to single destinations. Even in present exploration taking place at the International Space Station in low-Earth orbit, logistics is complicated by flights arriving from five launch sites on Earth. The future challenges of space logistics given complex campaigns of interconnected missions in deep space will require innovative tools to aid planning and conceptual design. This paper presents a modeling framework to evaluate the propulsive and logistics feasibility of space exploration from the macro-logistics perspective, which covers the delivery of elements and resources to support demands generated during exploration. The modeling framework is implemented in a versatile and unifying software tool, SpaceNet, for general space exploration scenario analysis. Four space exploration scenarios are presented as application cases to highlight the applicability of the framework across vastly different scenarios. The first case investigates the resupply of the International Space Station between 2010 and 2015 using 77 missions combining NASA, European Space Agency, Japanese Space Agency, Russian Space Agency, and commercial space transportation. The second case models a lunar outpost build-up consisting of 17 flights to achieve continuous human presence over eight years. The third case models and evaluates a conceptual sortie-style mission to a near-Earth object, 1999 AO10. Finally, the fourth case models a flexible path type human exploration in the vicinity of Mars using a combination of human and tele-operated exploration. Taken together these cases demonstrate the challenges and logistical requirements of future human space exploration campaigns during the period from 2010-2050 and illustrate the ability of SpaceNet to model and simulate the feasibility of meeting these requirements. I.

Paul T. Grogan; Howard K. Yue; Olivier L. De Weck

2011-01-01T23:59:59.000Z

150

The impact of ground-based glaciogenic seeding on orographic clouds and precipitation: a multi-sensor case study  

Science Conference Proceedings (OSTI)

A case study is presented from the 2012 AgI Seeding Cloud Impact Investigation, an experiment conducted over the Sierra Madre in southern Wyoming to study the impact of ground-based glaciogenic seeding on precipitation. In this case, on 21 ...

Binod Pokharel; Bart Geerts; Xiaoqin Jing

151

Economical Analysis of the Cold Air Distribution System: A Case Study  

E-Print Network (OSTI)

In this paper, we briefly introduce the super cold air distribution technique. By comparing the schemes of two air conditioning systems, including a modified air conditioning system, this paper analyzes the technique parameters and the economics of the cold air distribution system in detail. The detailed analysis includes the air quality, comfort index, initial cost, life cost, static recycle period, and dynamic recycle period. The advantages and trends of super cold air distribution systems in the future are pointed out. The economical analysis and technical comparison is based on real data. The conclusion is useful for the design of super cold air conditioning systems of large shops and office buildings.

Zhou, Z.; Xu, W.; Li, J.; Zhao, J.; Niu, L.

2006-01-01T23:59:59.000Z

152

Precipitation Estimate Using NEXRAD Ground-Based Radar Images: Validation, Calibration and Spatial Analysis  

Science Conference Proceedings (OSTI)

Precipitation is an important input variable for hydrologic and ecological modeling and analysis. Next Generation Radar (NEXRAD) can provide precipitation products that cover most of the continental United States with a high resolution display of approximately 4 × 4 km2. Two major issues concerning the applications of NEXRAD data are (1) lack of a NEXRAD geo-processing and geo-referencing program and (2) bias correction of NEXRAD estimates. In this chapter, a geographic information system (GIS) based software that can automatically support processing of NEXRAD data for hydrologic and ecological models is presented. Some geostatistical approaches to calibrating NEXRAD data using rain gauge data are introduced, and two case studies on evaluating accuracy of NEXRAD Multisensor Precipitation Estimator (MPE) and calibrating MPE with rain-gauge data are presented. The first case study examines the performance of MPE in mountainous region versus south plains and cold season versus warm season, as well as the effect of sub-grid variability and temporal scale on NEXRAD performance. From the results of the first case study, performance of MPE was found to be influenced by complex terrain, frozen precipitation, sub-grid variability, and temporal scale. Overall, the assessment of MPE indicates the importance of removing bias of the MPE precipitation product before its application, especially in the complex mountainous region. The second case study examines the performance of three MPE calibration methods using rain gauge observations in the Little River Experimental Watershed in Georgia. The comparison results show that no one method can perform better than the others in terms of all evaluation coefficients and for all time steps. For practical estimation of precipitation distribution, implementation of multiple methods to predict spatial precipitation is suggested.

Zhang, Xuesong

2012-12-17T23:59:59.000Z

153

Evaluation of Counter-Based Dynamic Load Balancing Schemes for Massive Contingency Analysis on Over 10,000 Cores  

SciTech Connect

Contingency analysis studies are necessary to assess the impact of possible power system component failures. The results of the contingency analysis are used to ensure the grid reliability, and in power market operation for the feasibility test of market solutions. Currently, these studies are performed in real time based on the current operating conditions of the grid with a set of pre-selected contingency list, which might result in overlooking some critical contingencies caused by variable system status. To have a complete picture of a power grid, more contingencies need to be studied to improve grid reliability. High-performance computing techniques hold the promise of being able to perform the analysis for more contingency cases within a much shorter time frame. This paper evaluates the performance of counter-based dynamic load balancing schemes for a massive contingency analysis program on 10,000+ cores. One million N-2 contingency analysis cases with a Western Electricity Coordinating Council power grid model have been used to demonstrate the performance. The speedup of 3964 with 4096 cores and 7877 with 10240 cores are obtained. This paper reports the performance of the load balancing scheme with a single counter and two counters, describes disk I/O issues, and discusses other potential techniques for further improving the performance.

Chen, Yousu; Huang, Zhenyu; Rice, Mark J.

2012-12-27T23:59:59.000Z

154

Agent-based simulation of pedestrian behaviour in closed spaces: a museum case study  

E-Print Network (OSTI)

In order to analyse the behaviour of pedestrians at the very fine scale, while moving along the streets, in open spaces or inside a building, simulation modelling becomes an essential tool. In these spatial environments, in the presence of unusual demand flows, simulation requires the ability to model the local dynamics of individual decision making and behaviour, which is strongly affected by the geometry, randomness, social preferences, local and collective behaviour of other individuals. The dynamics of people visiting and evacuating a museum offers an excellent case study along this line. In this paper we realize an agent-based simulation of the Castello Ursino museum in Catania (Italy), evaluating its carrying capacity in terms of both satisfaction of the visitors in regime of normal fruition and their safety under alarm conditions.

Pluchino, Alessandro; Inturri, Giuseppe; Rapisarda, Andrea; Ignaccolo, Matteo

2013-01-01T23:59:59.000Z

155

Physically based facial expression synthesizer with performance analysis and GPU-aided simulation  

Science Conference Proceedings (OSTI)

The performance analysis of a physically-based facial expression synthesizer with a novel algorithm for designing parametric muscle model is described. The facial expression synthesizer is partitioned into four general activities: construction of volumetric ... Keywords: GPU based simulation, facial animation, performance analysis, physically based simulation

C. Chen; E. C. Prakash

2006-12-01T23:59:59.000Z

156

A generic ontology-based approach for requirement analysis and its application in network management software  

Science Conference Proceedings (OSTI)

This paper describes a generic ontology-based approach that eases the requirement analysis (RA) work. The approach enables the user to derive method-specific RA tools for different applications. The derivation process is based on a unified framework ... Keywords: Acquisition Ontology, Knowledge Acquisition, Knowledge-based Systems, Methodology Ontology, Requirement Analysis

Chau-Young Ivan Lin; Cheng-Seen Ho

1999-01-01T23:59:59.000Z

157

Decision Level Data Fusion for Routing of Documents in the TREC3 Context: A Best Case Analysis of Worst Case Results.  

E-Print Network (OSTI)

Decision Level Data Fusion for Routing of Documents in the TREC3 Context: A Best Case Analysis of decision level data fusion in the routing (filtering) task of the Text Retrieval Conference is summarized and analyzed. The relatively poor results of an approach in which a specific fusion rule was selected for each

158

WebTrafMon: Web-based Internet/Intranet network traffic monitoring and analysis system  

Science Conference Proceedings (OSTI)

As enterprise computing environments become more network-oriented, the importance of network traffic monitoring and analysis intensifies. Most existing traffic monitoring and analysis tools focus on measuring the traffic loads of individual network segments. ... Keywords: Enterprise network management, Network traffic monitoring and analysis, Traffic management, Traffic type and source analysis, Web-based management

J. W. -K Hong; S.-S Kwon; J.-Y Kim

1999-09-01T23:59:59.000Z

159

A framework for jitter analysis in cell based multiplexers  

Science Conference Proceedings (OSTI)

Keywords: ATM, B-ISDN, cell based networks, cell delay variation, discrete time queues, jitter, periodic arrivals, statistical multiplexing

Chatschik Bisdikian; Wassim Matragi; Khosrow Sohraby

1995-05-01T23:59:59.000Z

160

Analysis of Heat Transfer in Metal Hydride Based Hydrogen Separation  

DOE Green Energy (OSTI)

This thesis presents a transient heat transfer analysis to model the heat transfer in the Pd/k packed column, and the impact of adding metallic foam.

Fleming, W.H. Jr.

1999-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Web-based Analysis Tools for Appliance Efficiency Policies in...  

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

Appliance Standards Project (CLASP) is to transfer appliance efficient policy analysis technologies and benefits to developing countries. In this talk we describe the...

162

Geographically-Based Hydrogen Demand & Infrastructure Rollout Scenario Analysis (Presentation)  

DOE Green Energy (OSTI)

This presentation by Margo Melendez at the 2007 DOE Hydrogen Program Annual Merit Review Meeting provides information about NREL's Hydrogen Demand & Infrastructure Rollout Scenario Analysis.

Melendez, M.

2007-05-17T23:59:59.000Z

163

Adapting a Beam-Based Rotordynamics Model to Accept a General Three-Dimensional Finite-Element Casing Model  

E-Print Network (OSTI)

The subject of this thesis is an extension of a two-dimensional, axisymmetric, Timoshenko-beam finite-element rotordynamic code to include a three-dimensional non-axisymmetric solid-element casing model. Axisymmetric beams are sufficient to model rotors. Spring and damper forces provide the interface between the rotor and its casing and capture the dynamics of the full model. However, axisymmetric beams limit the modeling of real-case machine structures, where the casing is not axisymmetric. Axisymmetric and non-axisymmetric 3D finite element casing structures are modeled. These structures are then reduced using a technique called substructuring. Modal equations are developed for axisymmetric and non-axisymmetric casing models. In a 3D non-axisymmetric model, structural dynamics modes can be modeled by lateral modes in two orthogonal planes. Modal information of the complex 3D casing structures are generated, and then incorporated into the 2D code after a series of pre-processing steps. A reduction method called Component Mode Synthesis (CMS) is used to reduce the large dimensionality involved in calculation of rotordynamic coefficients. The results from the casing structures are merged with the rotor model to create a combined rotor-casing model. The analysis of the combined structure shows that there is a difference in the natural frequencies and unbalance response between the model that uses symmetrical casing and the one that uses non-axisymmetric casing. XLTRC2 is used as an example of a two-dimensional axisymmetric beam-element code. ANSYS is used as a code to build three-dimensional non-axisymmetric solid-element casing models. The work done in this thesis opens the scope to incorporate complex non-axisymmetric casing models with XLTRC2.

James, Stephen M.

2010-05-01T23:59:59.000Z

164

Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis  

E-Print Network (OSTI)

Naval Base Ventura County Standby Generator Optimization20 Figure 7: Standby Charge Sensitivity – Separate24 Figure 11: Standby Charge Sensitivity Analysis –

Bailey, Owen C.; Marnay, Chris

2005-01-01T23:59:59.000Z

165

Detection of illicit traffic based on multiscale analysis  

Science Conference Proceedings (OSTI)

Recent years have witnessed a huge increase in the number and variety of Internet applications, as well as on the number and diversity of security attacks to network users and systems. Consequently, the need for an accurate mapping of traffic to its ... Keywords: application identification, cluster analysis, licit and illict applications, multifractal behavior, multiscale analysis, wavelets

Eduardo Rocha; Paulo Salvador; António Nogueira

2009-09-01T23:59:59.000Z

166

Shale Gas Production Theory and Case Analysis We researched the process of oil recovery and shale gas  

E-Print Network (OSTI)

Shale Gas Production Theory and Case Analysis (Siemens) We researched the process of oil recovery and shale gas recovery and compare the difference between conventional and unconventional gas reservoir and recovery technologies. Then we did theoretical analysis on the shale gas production. According

Ge, Zigang

167

Meeting Student Needs for Multivariate Data Analysis: A Case Study in Teaching a Multivariate Data Analysis Course with No Pre-requisites  

E-Print Network (OSTI)

Modern students encounter big, messy data sets long before setting foot in our classrooms. Many of our students need to develop skills in exploratory data analysis and multivariate analysis techniques for their jobs after college, but these topics are not covered in introductory statistics courses. This case study describes my experience in designing and teaching a course on multivariate data analysis with no pre-requisites, using real data, active learning, and other activities to help students tackle the material.

Wagaman, Amy S

2013-01-01T23:59:59.000Z

168

Tariff-based analysis of commercial building electricity prices  

E-Print Network (OSTI)

4 Calculation of Electricity Prices 4.1 Averageseasonal and annual electricity prices by region in c/kWh.based annual average electricity price vs. annual energy

Coughlin, Katie M.; Bolduc, Chris A.; Rosenquist, Greg J.; Van Buskirk, Robert D.; McMahon, James E.

2008-01-01T23:59:59.000Z

169

Tariff-based analysis of commercial building electricity prices  

E-Print Network (OSTI)

Distribution of monthly energy consumption, for January andprice vs. annual energy consumption. Tari?-based annualthe known monthly energy and consumption and demand. This

Coughlin, Katie M.; Bolduc, Chris A.; Rosenquist, Greg J.; Van Buskirk, Robert D.; McMahon, James E.

2008-01-01T23:59:59.000Z

170

Tariff-based analysis of commercial building electricity prices  

E-Print Network (OSTI)

price vs. annual peak demand. . . . . Tari?-based annuala function of annual peak demand. . . Probability that theelectricity price vs. annual peak demand; each point is one

Coughlin, Katie M.; Bolduc, Chris A.; Rosenquist, Greg J.; Van Buskirk, Robert D.; McMahon, James E.

2008-01-01T23:59:59.000Z

171

NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005  

Open Energy Info (EERE)

NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 Baseline Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 Baseline Model Agency/Company /Organization: National Energy Technology Laboratory Sector: Energy Topics: Baseline projection, GHG inventory Resource Type: Software/modeling tools Website: www.netl.doe.gov/energy-analyses/refshelf/results.asp?ptype=Models/Too References: NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 Baseline Model [1] NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 Baseline Model This model calculates the 2005 national average life cycle greenhouse gas emissions for petroleum-based fuels sold or distributed in the United

172

A complex network-based approach for texture analysis  

Science Conference Proceedings (OSTI)

In this paper, we propose a novel texture analysis method using the complex network theory. It was investigated how a texture image can be effectively represented, characterized and analyzed in terms of a complex network. The propose uses degree measurements ...

André Ricardo Backes; Dalcimar Casanova; Odemir Martinez Bruno

2010-11-01T23:59:59.000Z

173

DOE Hydrogen Analysis Repository: H2A Case Study: Current Distributed  

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

Natural Gas Steam Reformer Natural Gas Steam Reformer Project Summary Full Title: H2A Case Study: Current (2005) Steam Methane Reformer (SMR) at Forecourt 1500 kg/day Project ID: 236 Principal Investigator: Brian James Keywords: Hydrogen production; forecourt; steam methane reforming; natural gas; distributed Purpose The purpose of this analysis is to determine a baseline delivered cost of hydrogen for the forecourt production of hydrogen from natural gas steam reforming. Performer Principal Investigator: Brian James Organization: Directed Technologies, Inc. (DTI) Address: 3601 Wilson Blvd., Suite 650 Arlington, VA 22201 Telephone: 703-243-3383 Email: Brian_James@DirectedTechnologies.com Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov

174

DOE Hydrogen Analysis Repository: H2A Case Study: Current Central Natural  

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

Natural Gas Reforming without Sequestration Natural Gas Reforming without Sequestration Project Summary Full Title: H2A Case Study: Current (2005) Central Hydrogen from Natural Gas without CO2 Capture and Sequestration Project ID: 233 Principal Investigator: Darlene Steward Keywords: Hydrogen production; steam methane reforming; natural gas Purpose Steam reforming of hydrocarbons continues to be the most efficient, economical, and widely used process for production of hydrogen and hydrogen/carbon monoxide mixtures. The purpose of this analysis is to assess the economic production of hydrogen from the steam reforming of natural gas. Performer Principal Investigator: Darlene Steward Organization: National Renewable Energy Laboratory (NREL) Address: 1617 Cole Blvd. Golden, CO 80401-3393 Telephone: 303-275-3837

175

DOE Hydrogen Analysis Repository: H2A Case Study: Future Central Nuclear  

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

Nuclear Nuclear Project Summary Full Title: H2A Case Study: Longer-Term (2020-2030) Advanced Nuclear Energy - High Temperature (Steam) Electrolysis Project ID: 237 Principal Investigator: Dan Mears Keywords: Hydrogen production; nuclear; electrolysis; water Purpose The purpose of this analysis was to analyze the technical and economic aspects of a process for production of hydrogen from the high-temperature electrolysis of water using advance nuclear technology. Performer Principal Investigator: Dan Mears Organization: Technology Insights Address: 6540 Lusk Blvd., Suite C-102 San Diego, CA 92121 Telephone: 858-455-9500 Email: mears@ti-sd.com Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov Period of Performance

176

DOE Hydrogen Analysis Repository: H2A Case Study: Future Distributed  

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

Natural Gas Steam Reformer Natural Gas Steam Reformer Project Summary Full Title: H2A Case Study: Future (2025) Natural Gas Steam Reformer (SMR) at Forecourt 1500 kg/day Project ID: 243 Principal Investigator: Brian James Keywords: Hydrogen production; forecourt; distributed; ethanol; steam reforming Purpose The purpose of this analysis is to determine a baseline delivered cost of hydrogen for the forecourt production of hydrogen from ethanol steam reforming. Performer Principal Investigator: Brian James Organization: Directed Technologies, Inc. (DTI) Address: 3601 Wilson Blvd., Suite 650 Arlington, VA 22201 Telephone: 703-243-3383 Email: Brian_James@DirectedTechnologies.com Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov

177

DOE Hydrogen Analysis Repository: H2A Case Study: Current Central Biomass  

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

Current Central Biomass Current Central Biomass Project Summary Full Title: H2A Case Study: Current (2005) Hydrogen from Biomass via Gasification and Catalytic Steam Reforming Project ID: 229 Principal Investigator: Darlene Steward Keywords: Biomass; pressure swing adsorption (PSA); water gas shift reaction (WGSR); costs; hydrogen production; gasifier Purpose The purpose of this analysis was to determine the production cost of hydrogen from biomass via the FERCO indirectly-heated gasifier. Performer Principal Investigator: Darlene Steward Organization: National Renewable Energy Laboratory (NREL) Address: 1617 Cole Blvd. Golden, CO 80401-3393 Telephone: 303-275-3837 Email: Darlene_Steward@nrel.gov Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov

178

Case study analysis of biomass burning plumes observed over Brazil during SAMBBA, September 2012  

Science Conference Proceedings (OSTI)

Biomass burning is a huge source of atmospheric aerosols and is poorly understood leading to large uncertainties in estimates of radiative forcing of climate. Aerosols have both a direct effect on climate by reflecting and absorbing solar radiation and an indirect effect by acting as cloud condensation nuclei (CCN) and ice nuclei (IN). Biomass burning aerosols are produced from burning of vegetation with the vast majority occurring in the tropics. This research presents data collected during the aircraft campaign of the South American Biomass Burning Analysis (SAMBBA) project during September and October 2012. A smouldering rainforest fire and a flaming savannah-like fire were selected for in-depth case studies of the atmospheric plume constituents and provide a comparison between the two fire types. The physiochemical characterization of the two plumes are identified

2013-01-01T23:59:59.000Z

179

Experiences from near-real-time satellite-based volcano monitoring in Central America: case studies at Fuego, Guatemala  

Science Conference Proceedings (OSTI)

Over the past decade, remote sensing has been used increasingly in the study of active volcanoes and their associated hazards. Ground-based remote sensing techniques, such as those aimed at the analysis of volcanic gases or fumarole temperatures, are ...

P. W. Webley; M. J. Wooster; W. Strauch; J. A. Saballos; K. Dill; P. Stephenson; J. Stephenson; R. Escobar Wolf; O. Matias

2008-11-01T23:59:59.000Z

180

Feedback loops in educational environments using web-based survey tools : new technology development and three implementation case studies  

E-Print Network (OSTI)

This thesis presents lessons from the development of an on-line, web-based feedback system and preliminary analysis of the socio-technical interactions associated with the specification, design and use of this system. The ...

Spead, Benjamin, 1978-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Quantitative study of oilfield casing damage  

Science Conference Proceedings (OSTI)

Carrying on the analysis to the cause of casing failure based on engineering factors and geological factors, and choosing the improved analytic hierarchy process to have a quantitative study for oilfield of the casing failure, improved the influence ... Keywords: analytical hierarchy process (AHP), casing damage, quantitative analysis

Deng Rui; Zhang Liang; Guo Haimin

2012-09-01T23:59:59.000Z

182

Enhanced oil recovery data base analysis by simplified predictive models  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy, Bartlesville Energy Technology Center (BETC), has been developing computerized data bases and simplified predictive models to be used to predict enhanced oil recovery (EOR) potential in the U.S. The development phase of this work is nearing completion whereupon the models and data bases will be made available to the public. This paper describes the overall development phase for the models and data bases with analyses of selected EOR projects using the predictive models. Examples of model outputs are discussed and brief descriptions of the predictive algorithms are given.

Ray, R.M.; Wesson, T.C.

1982-11-01T23:59:59.000Z

183

Habitat-Lite: A GSC case study based on free text terms for environmental metadata  

SciTech Connect

There is an urgent need to capture metadata on the rapidly growing number of genomic, metagenomic and related sequences, such as 16S ribosomal genes. This need is a major focus within the Genomic Standards Consortium (GSC), and Habitat is a key metadata descriptor in the proposed 'Minimum Information about a Genome Sequence' (MIGS) specification. The goal of the work described here is to provide a light-weight, easy-to-use (small) set of terms ('Habitat-Lite') that captures high-level information about habitat while preserving a mapping to the recently launched Environment Ontology (EnvO). Our motivation for building Habitat-Lite is to meet the needs of multiple users, such as annotators curating these data, database providers hosting the data, and biologists and bioinformaticians alike who need to search and employ such data in comparative analyses. Here, we report a case study based on semi-automated identification of terms from GenBank and GOLD. We estimate that the terms in the initial version of Habitat-Lite would provide useful labels for over 60% of the kinds of information found in the GenBank isolation-source field, and around 85% of the terms in the GOLD habitat field. We present a revised version of Habitat-Lite and invite the community's feedback on its further development in order to provide a minimum list of terms to capture high-level habitat information and to provide classification bins needed for future studies.

Kyrpides, Nikos; Hirschman, Lynette; Clark, Cheryl; Cohen, K. Bretonnel; Mardis, Scott; Luciano, Joanne; Kottmann, Renzo; Cole, James; Markowitz, Victor; Kyrpides, Nikos; Field, Dawn

2008-04-01T23:59:59.000Z

184

A Simple Biomass-Based Length-Cohort Analysis for Estimating Biomass and Fishing Mortality  

E-Print Network (OSTI)

A Simple Biomass-Based Length-Cohort Analysis for Estimating Biomass and Fishing Mortality CHANG IK, Washington 98115, USA Abstract.--A biomass-based length-cohort analysis (LCA) was examined for its performance in estimating total stock biomass and fishing mortality (F) for a population in equilibrium. We

185

DOE Hydrogen Analysis Repository: Gasification-Based Fuels and Electricity  

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

Gasification-Based Fuels and Electricity Production from Biomass Gasification-Based Fuels and Electricity Production from Biomass Project Summary Full Title: Gasification-Based Fuels and Electricity Production from Biomass, without and with Carbon Capture and Storage Project ID: 226 Principal Investigator: Eric D. Larson Keywords: Biomass; Fischer Tropsch; hydrogen Purpose Develop and analyze process designs for gasification-based thermochemical conversion of switchgrass into Fischer-Tropsch (F-T) fuels, dimethyl ether (DME), and hydrogen. All process designs will have some level of co-production of electricity, and some will include capture of byproduct CO2 for underground storage. Performer Principal Investigator: Eric D. Larson Organization: Princeton University Telephone: 609-258-4966 Email: elarson@princeton.edu

186

Fuzzy systems based on multispecies PSO method in spatial analysis  

Science Conference Proceedings (OSTI)

We present a method by using the hierarchical cluster-based Multispecies particle swarm optimization to generate a fuzzy system of Takagi-Sugeno-Kang type encapsulated in a geographical information system considered as environmental decision support ...

Ferdinando Di Martino; Vincenzo Loia; Salvatore Sessa

2012-01-01T23:59:59.000Z

187

Drought Analysis Based on a Marked Cluster Poisson Model  

Science Conference Proceedings (OSTI)

This paper presents an operational definition of drought events based on an “excess over threshold” approach applied on rainfall series and develops a stochastic model for describing droughts defined in that way. The model consists of a Poisson ...

Ana C. Cebrián; Jesús Abaurrea

2006-08-01T23:59:59.000Z

188

The importance of cognitive architectures: an analysis based on CLARION  

Science Conference Proceedings (OSTI)

Research in computational cognitive modelling investigates the nature of cognition through developing process-based understanding by specifying computational models of mechanisms (including representations) and processes. In this enterprise, a cognitive ... Keywords: Cognition, Cognitive architecture, Modelling

Ron Sun

2007-06-01T23:59:59.000Z

189

An automated dependability analysis method for COTS-based systems  

Science Conference Proceedings (OSTI)

The increasing application of COTS-components and component-based software engineering has entailed the development of appropriate component specifications. In the embedded systems domain it would be desirable to benefit from these component specifications ...

Lars Grunske; Bernhard Kaiser

2005-02-01T23:59:59.000Z

190

Hydrogen Station Siting and Refueling Analysis Using Geographic Information Systems: A Case Study of Sacramento County  

E-Print Network (OSTI)

Case of Compressed Natural Gas (CNG) Vehicles in CaliforniaCase of Compressed Natural Gas (Cng) Vehicles in Californiaof compressed natural gas (CNG), yet natural gas is viewed

Nicholas, Michael A

2004-01-01T23:59:59.000Z

191

Hydrogen Station Siting and Refueling Analysis Using Geographic Information Systems: A Case Study of Sacramento County  

E-Print Network (OSTI)

Vehicles: The Case of Compressed Natural Gas (CNG) VehiclesVehicles: The Case of Compressed Natural Gas (Cng) Vehiclessimilar to that of compressed natural gas (CNG), yet natural

Nicholas, Michael A

2004-01-01T23:59:59.000Z

192

CHAPTER 7. BERYLLIUM ANALYSIS BY NON-PLASMA BASED METHODS  

SciTech Connect

The most common method of analysis for beryllium is inductively coupled plasma atomic emission spectrometry (ICP-AES). This method, along with inductively coupled plasma mass spectrometry (ICP-MS), is discussed in Chapter 6. However, other methods exist and have been used for different applications. These methods include spectroscopic, chromatographic, colorimetric, and electrochemical. This chapter provides an overview of beryllium analysis methods other than plasma spectrometry (inductively coupled plasma atomic emission spectrometry or mass spectrometry). The basic methods, detection limits and interferences are described. Specific applications from the literature are also presented.

Ekechukwu, A

2009-04-20T23:59:59.000Z

193

A UML-based method for risk analysis of human-robot interactions  

Science Conference Proceedings (OSTI)

Safety is a major concern for robots that interact physically with humans. We propose a risk analysis method based on deviation analysis of system usage scenarios that allows the identification of major risks. Scenarios are described with the common ... Keywords: HAZOP, UML, risk analysis, safety, scenario

Damien Martin-Guillerez; Jérémie Guiochet; David Powell; Christophe Zanon

2010-04-01T23:59:59.000Z

194

A self-organizing neuro-fuzzy network based on first order effect sensitivity analysis  

Science Conference Proceedings (OSTI)

As an effective method that can provide the information about the influence of inputs on the variation of output, variance based sensitivity analysis is widely used to determine the structure of neural networks. In the past, the global sensitivity analysis ... Keywords: First order effect, Neuro-fuzzy networks, Sensitivity analysis, Systemic fluctuation

Cheng Chen, Fei-Yue Wang

2013-10-01T23:59:59.000Z

195

Improving the Accuracy of Software-Based Energy Analysis for Residential Buildings (Presentation)  

SciTech Connect

This presentation describes the basic components of software-based energy analysis for residential buildings, explores the concepts of 'error' and 'accuracy' when analysis predictions are compared to measured data, and explains how NREL is working to continuously improve the accuracy of energy analysis methods.

Polly, B.

2011-09-01T23:59:59.000Z

196

Complexity-based program phase analysis and classification  

Science Conference Proceedings (OSTI)

Modeling and analysis of program behavior are at the foundation of computer system design and optimization. As computer systems become more adaptive, their efficiency increasingly depends on program dynamic characteristics. Previous studies have revealed ... Keywords: computer architecture, performance modeling, program phase, wavelet

Chang-Burm Cho; Tao Li

2006-09-01T23:59:59.000Z

197

Risky trust: risk-based analysis of software systems  

Science Conference Proceedings (OSTI)

Measuring the security of a software system is a difficult problem. This paper presents a model using common security concepts to evaluate the security of a system under design. After providing definitions for all relevant concepts and formalizing some ... Keywords: distrust, risk analysis, trust

Zaid Dwaikat; Francesco Parisi-Presicce

2005-07-01T23:59:59.000Z

198

Discovering cardholders' payment-patterns based on clustering analysis  

Science Conference Proceedings (OSTI)

This paper sampled approximately 9.3 million entries of data, concerning payments from 300,000 credit card customers over the past two years of Bank A in Taiwan. By applying data mining techniques to decipher customers' behavior and perform risk analysis, ... Keywords: Clustering algorithms, Credit card, Data mining

Chien-Chou Shih; Ding-An Chiang; Yi-jen Hu; Chun-Chi Chen

2011-09-01T23:59:59.000Z

199

Analysis on Uranic Slope Stability Based on Neural Network  

Science Conference Proceedings (OSTI)

How to accurately predict the occurrence of landslides, and it has become one of the troubles in the mining process. The author made a brief introduction of artificial neural network and BP network model in this paper, and also analysis some important ... Keywords: Uranic slope, neural network, Forecast network model, safety of slope

Yufeng Zhu; Xiaoli Ding; Zhiwei Li; Shijian Zhou

2010-07-01T23:59:59.000Z

200

Attentiveness assessment in learning based on fuzzy logic analysis  

Science Conference Proceedings (OSTI)

Learner attention affects learning efficiency. However, in many classes, teachers cannot assess the degree of attention of every learner. When a teacher is capable of addressing inattentive learners immediately, he can avoid situations in which learners ... Keywords: Fuzzy logic, Image processing, Learner attention analysis

Kuo-An Hwang; Chia-Hao Yang

2009-04-01T23:59:59.000Z

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


201

Activity analysis based on low sample rate smart meters  

Science Conference Proceedings (OSTI)

Activity analysis disaggregates utility consumption from smart meters into specific usage that associates with human activities. It can not only help residents better manage their consumption for sustainable lifestyle, but also allow utility managers ... Keywords: classification, disaggregation, gaussian mixture model, hidden markov model, low sample rate, smart meter

Feng Chen; Jing Dai; Bingsheng Wang; Sambit Sahu; Milind Naphade; Chang-Tien Lu

2011-08-01T23:59:59.000Z

202

Analysis of energy use in building services of the industrial sector in California: Two case studies  

SciTech Connect

Energy-use patterns in many of California's fastest-growing industries are not typical of the existing mix of industries in the US. Many California firms operate small- and medium-sized facilities housed in buildings used simultaneously or interchangeably over time for commercial (office, retail, warehouse) and industrial activities. In these industrial subsectors, the energy required for building services (providing occupant comfort and necessities like lighting, HVAC, office equipment, computers, etc.) may be at least as important as the more familiar process energy requirements -- especially for electricity and on-peak demand. Electricity for building services is sometimes priced as if it were base loaded like process uses; in reality this load varies significantly according to occupancy schedules and cooling and heating loads, much as in any commercial building. Using informal field surveys, simulation studies, and detailed analyses of existing data (including utility commercial/industrial audit files), we studied the energy use of this industrial subsector through a multi-step procedure: (1) characterizing non-process building energy and power use in California industries, (2) identifying conservation and load-shaping opportunities in industrial building services, and (3) investigating industrial buildings and system design methodologies. In an earlier report, we addressed these issues by performing an extensive survey of the existing publicly available data, characterizing and comparing the building energy use in this sector. In this report, we address the above objectives by examining and analyzing energy use in two industrial case-study facilities in California. Based on the information for the case studies, we discuss the design consideration for these industrial buildings, characterize their energy use, and review their conservation and load-shaping potentials. In addition, we identify and discuss some research ideas for further investigation.

Akbari, H.; Sezgen, O.

1991-09-01T23:59:59.000Z

203

DOE's energy data base (EDB) versus other energy-related data bases: a comparative analysis  

Science Conference Proceedings (OSTI)

The release of the DOE Energy Data Base to commercial services in 1980 raised an immediate question in the minds of some searchers: how does this new data base fit into the spectrum of already-available data bases. Because the authors have been closely associated with the Department of Energy's RECON system and its data bases for several years, as trainers and as editor of the DOE/RECON Newsletter, the question was of great interest and we decided to investigate it.

Robinson, J.; Hu, M.

1981-02-01T23:59:59.000Z

204

Knowledge based systems: From process control to policy analysis  

SciTech Connect

Los Alamos has been pursuing the use of Knowledge Based Systems for many years. These systems are currently being used to support projects that range across many production and operations areas. By investing time and money in people and equipment, Los Alamos has developed one of the strongest knowledge based systems capabilities within the DOE. Staff of Los Alamos` Mechanical & Electronic Engineering Division are using these knowledge systems to increase capability, productivity and competitiveness in areas of manufacturing quality control, robotics, process control, plant design and management decision support. This paper describes some of these projects and associated technical program approaches, accomplishments, benefits and future goals.

Marinuzzi, J.G.

1993-06-01T23:59:59.000Z

205

Knowledge based systems: From process control to policy analysis  

SciTech Connect

Los Alamos has been pursuing the use of Knowledge Based Systems for many years. These systems are currently being used to support projects that range across many production and operations areas. By investing time and money in people and equipment, Los Alamos has developed one of the strongest knowledge based systems capabilities within the DOE. Staff of Los Alamos' Mechanical Electronic Engineering Division are using these knowledge systems to increase capability, productivity and competitiveness in areas of manufacturing quality control, robotics, process control, plant design and management decision support. This paper describes some of these projects and associated technical program approaches, accomplishments, benefits and future goals.

Marinuzzi, J.G.

1993-01-01T23:59:59.000Z

206

Rapid analysis of steels using laser-based techniques  

SciTech Connect

Based on the data obtained by this study, we conclude that laser-based techniques can be used to provide at least semi-quantitative information about the elemental composition of molten steel. Of the two techniques investigated here, the Sample-Only method appears preferable to the LIBS (laser-induced breakdown spectroscopy) method because of its superior analytical performance. In addition, the Sample-Only method would probably be easier to incorporate into a steel plant environment. However, before either technique can be applied to steel monitoring, additional research is needed.

Cremers, D.A.; Archuleta, F.L.; Dilworth, H.C.

1985-01-01T23:59:59.000Z

207

Ballast Accidents Analysis and Evaluation of Urban Rail Transit Based on Method of Causality Analysis and Faulty Tree Analysis  

Science Conference Proceedings (OSTI)

Ballast casualty often incurs severe sequence once takes place, such as abnormal operation,, personnel injury or even death accident , especially for lines below grade. Causality Analysis and Fault Tree analysis method is applied to research of personnel ... Keywords: ballast accident, causality analysis, faulty tree analysis, urban rail transit

Jing He; Zhi-gang Liu

2009-04-01T23:59:59.000Z

208

Representative element modeling of fracture systems based on stochastic analysis  

DOE Green Energy (OSTI)

An important task associated with reservoir simulation is the development of a technique to model a large number of fractures with a single description. Representative elements must be developed before reservoir scale simulations can adequately address the effects of intersecting fracture systems on fluid migration. An effective element model will sharply reduce the cost and complexity of large scale simulations to bring these to manageable levels. Stochastic analysis is a powerful tool which can determine the hydraulic and transport characteristics of intersecting sets of statistically defined fractures. Hydraulic and transport characteristics are required to develop representative elements. Given an assumption of fully developed laminar flow, the net fracture conductivities and hence flow velocities can be determined from descriptive statistics of fracture spacing, orientation, aperture, and extent. The distribution of physical characteristics about their mean leads to a distribution of the associated conductivities. The variance of hydraulic conductivity induces dispersion into the transport process. The simplest of fracture systems, a single set of parallel fractures, is treated to demonstrate the usefulness of stochastic analysis. Explicit equations for conductivity of an element are developed and the dispersion characteristics are shown. The analysis reveals the dependence of the representative element properties on the various parameters used to describe the fracture system. 10 refs., 3 figs.

Clemo, T.M.

1986-01-01T23:59:59.000Z

209

Intelligent Control in Automation Based on Wireless Traffic Analysis  

SciTech Connect

Wireless technology is a central component of many factory automation infrastructures in both the commercial and government sectors, providing connectivity among various components in industrial realms (distributed sensors, machines, mobile process controllers). However wireless technologies provide more threats to computer security than wired environments. The advantageous features of Bluetooth technology resulted in Bluetooth units shipments climbing to five million per week at the end of 2005 [1, 2]. This is why the real-time interpretation and understanding of Bluetooth traffic behavior is critical in both maintaining the integrity of computer systems and increasing the efficient use of this technology in control type applications. Although neuro-fuzzy approaches have been applied to wireless 802.11 behavior analysis in the past, a significantly different Bluetooth protocol framework has not been extensively explored using this technology. This paper presents a new neurofuzzy traffic analysis algorithm of this still new territory of Bluetooth traffic. Further enhancements of this algorithm are presented along with the comparison against the traditional, numerical approach. Through test examples, interesting Bluetooth traffic behavior characteristics were captured, and the comparative elegance of this computationally inexpensive approach was demonstrated. This analysis can be used to provide directions for future development and use of this prevailing technology in various control type applications, as well as making the use of it more secure.

Kurt Derr; Milos Manic

2007-08-01T23:59:59.000Z

210

Intelligent Control in Automation Based on Wireless Traffic Analysis  

SciTech Connect

Wireless technology is a central component of many factory automation infrastructures in both the commercial and government sectors, providing connectivity among various components in industrial realms (distributed sensors, machines, mobile process controllers). However wireless technologies provide more threats to computer security than wired environments. The advantageous features of Bluetooth technology resulted in Bluetooth units shipments climbing to five million per week at the end of 2005 [1, 2]. This is why the real-time interpretation and understanding of Bluetooth traffic behavior is critical in both maintaining the integrity of computer systems and increasing the efficient use of this technology in control type applications. Although neuro-fuzzy approaches have been applied to wireless 802.11 behavior analysis in the past, a significantly different Bluetooth protocol framework has not been extensively explored using this technology. This paper presents a new neurofuzzy traffic analysis algorithm of this still new territory of Bluetooth traffic. Further enhancements of this algorithm are presented along with the comparison against the traditional, numerical approach. Through test examples, interesting Bluetooth traffic behavior characteristics were captured, and the comparative elegance of this computationally inexpensive approach was demonstrated. This analysis can be used to provide directions for future development and use of this prevailing technology in various control type applications, as well as making the use of it more secure.

Kurt Derr; Milos Manic

2007-09-01T23:59:59.000Z

211

Spatial analysis based on variance of moving window averages  

E-Print Network (OSTI)

R02 R04 R06 R08 R16 I n Window size B R02 R06 R10 R14 R20R04 R08 R12 R16 R24 R36 I n Window size Wu et al. , Fig. 2Based on Variance of Moving Window Averages B. M. Wu, K. V.

Wu, B M; Subbarao, K V; Ferrandino, F J; Hao, J J

2006-01-01T23:59:59.000Z

212

Code based analysis for object-oriented systems  

Science Conference Proceedings (OSTI)

The basic features of object-oriented software makes it difficult to apply traditional testing methods in object-oriented systems. Control Flow Graph (CFG) is a well-known model used for identification of independent paths in procedural software. This ... Keywords: extended control flow graph, extended cyclomatic complexity, graph-based testing, object-oriented testing, test paths

Swapan Bhattacharya; Ananya Kanjilal

2006-11-01T23:59:59.000Z

213

A Fast TCAD-based Methodology for Variation Analysis of Emerging Nano-Devices  

E-Print Network (OSTI)

-based PV simulations close to compact-model-based simulations. Therefore, the methodology can TCAD-based PV analysis of nano-devices critically depends on the complexity of the physical models Variations (PV). However, obtaining both fast and accurate device simulations is impractical with current

Candea, George

214

Integrating gray system theory and logistic regression into case-based reasoning for safety assessment of thermal power plants  

Science Conference Proceedings (OSTI)

Safety assessment of thermal power plants (TPPs) is one of the important means to guarantee the safety of production in thermal power production enterprises. Due to various technical limitations, existing assessment approaches, such as analytic hierarchy ... Keywords: Case-based reasoning, Gray system theory, Intelligent decision support system, Logistic regression, Management safety assessment, Thermal power plants

Changyong Liang; Dongxiao Gu; Isabelle Bichindaritz; Xingguo Li; Chunrong Zuo; Wenen Cheng

2012-04-01T23:59:59.000Z

215

Performance evaluation of passive cooling in office buildings based on uncertainty and sensitivity analysis  

Science Conference Proceedings (OSTI)

Natural night ventilation is an interesting passive cooling method in moderate climates. Driven by wind and stack generated pressures, it cools down the exposed building structure at night, in which the heat of the previous day is accumulated. The performance of natural night ventilation highly depends on the external weather conditions and especially on the outdoor temperature. An increase of this outdoor temperature is noticed over the last century and the IPCC predicts an additional rise to the end of this century. A methodology is needed to evaluate the reliable operation of the indoor climate of buildings in case of warmer and uncertain summer conditions. The uncertainty on the climate and on other design data can be very important in the decision process of a building project. The aim of this research is to develop a methodology to predict the performance of natural night ventilation using building energy simulation taking into account the uncertainties in the input. The performance evaluation of natural night ventilation is based on uncertainty and sensitivity analysis. The results of the uncertainty analysis showed that thermal comfort in a single office cooled with single-sided night ventilation had the largest uncertainty. The uncertainties on thermal comfort in case of passive stack and cross ventilation were substantially smaller. However, since wind, as the main driving force for cross ventilation, is highly variable, the cross ventilation strategy required larger louvre areas than the stack ventilation strategy to achieve a similar performance. The differences in uncertainty between the orientations were small. Sensitivity analysis was used to determine the most dominant set of input parameters causing the uncertainty on thermal comfort. The internal heat gains, solar heat gain coefficient of the sunblinds, internal convective heat transfer coefficient, thermophysical properties related to thermal mass, set-point temperatures controlling the natural night ventilation, the discharge coefficient C{sub d} of the night ventilation opening and the wind pressure coefficients C{sub p} were identified to have the largest impact on the uncertainty of thermal comfort. The impact of the warming climate on the uncertainty of thermal comfort was determined. The uncertainty on thermal comfort appeared to increase significantly when a weather data set with recurrence time of 10 years (warm weather) was applied in the transient simulations in stead of a standard weather data set. Natural night ventilation, designed for normal weather conditions, was clearly not able to ensure a high probability of good thermal comfort in warm weather. To ensure a high probability of good thermal comfort and to reduce the performance uncertainty in a warming climate, natural night ventilation has to be combined with additional measures. Different measures were analysed, based on the results of the sensitivity analysis. All the measures were shown to significantly decrease the uncertainty of thermal comfort in warm weather. The study showed the importance to carry out simulations with a warm weather data set together with the analysis under typical conditions. This approach allows to gain a better understanding of the performance of a natural night ventilation design, and to optimize the design to a robust solution. (author)

Breesch, H. [Building Physics, Construction and Services, Department of Architecture and Urban Planning, Ghent University, J. Plateaustraat 22, B-9000 Ghent (Belgium); Sustainable Building Research Group, Department of Construction, Catholic University College Ghent, Gebroeders Desmetstraat 1, B-9000 Ghent (Belgium); Janssens, A. [Building Physics, Construction and Services, Department of Architecture and Urban Planning, Ghent University, J. Plateaustraat 22, B-9000 Ghent (Belgium)

2010-08-15T23:59:59.000Z

216

System planning analysis applied to OTEC: initial cases by Florida Power Corporation. Task II report No. FC-5237-2  

DOE Green Energy (OSTI)

The objective of the task was to exercise the FPC system planning methodology on: (1) Base Case, 10 year generation expansion plan with coal plants providing base load expansion, and (2) same, but 400 MW of OTEC substituting for coal burning units with equal resultant system reliability. OTEC inputs were based on reasonable economic projections of direct capital cost and O and M costs for first-generation large commercial plants. OTEC inputs discussed in Section 2. The Base Case conditions for FPC system planning methodology involved base load coal fueled additions during the 1980's and early 1990's. The first trial runs of the PROMOD system planning model substituted OTEC for 400 MW purchases of coal generated power during 1988-1989 and then 400 MW coal capacity thereafter. Result showed higher system reliability than Base Case runs. Reruns with greater coal fueled capacity displacement showed that OTEC could substitute for 400 MW purchases in 1988-1989 and replace the 800 MW coal unit scheduled for 1990 to yield equivalent system reliability. However, a 1995 unit would need to be moved to 1994. Production costing computer model runs were used as input to Corporate Model to examine corporate financial impact. Present value of total revenue requirements were primary indication of relative competitiveness between Base Case and OTEC. Results show present value of total revenue requirements unfavorable to OTEC as compared to coal units. The disparity was in excess of the allowable range for possible consideration.

None

1980-03-01T23:59:59.000Z

217

The IAEA Coordinated Research Program on HTGR Reactor Physics, Thermal-hydraulics and Depletion Uncertainty Analysis: Description of the Benchmark Test Cases and Phases  

SciTech Connect

The continued development of High Temperature Gas Cooled Reactors (HTGRs) requires verification of design and safety features with reliable high fidelity physics models and robust, efficient, and accurate codes. The uncertainties in the HTR analysis tools are today typically assessed with sensitivity analysis and then a few important input uncertainties (typically based on a PIRT process) are varied in the analysis to find a spread in the parameter of importance. However, one wish to apply a more fundamental approach to determine the predictive capability and accuracies of coupled neutronics/thermal-hydraulics and depletion simulations used for reactor design and safety assessment. Today there is a broader acceptance of the use of uncertainty analysis even in safety studies and it has been accepted by regulators in some cases to replace the traditional conservative analysis. Finally, there is also a renewed focus in supplying reliable covariance data (nuclear data uncertainties) that can then be used in uncertainty methods. Uncertainty and sensitivity studies are therefore becoming an essential component of any significant effort in data and simulation improvement. In order to address uncertainty in analysis and methods in the HTGR community the IAEA launched a Coordinated Research Project (CRP) on the HTGR Uncertainty Analysis in Modelling early in 2012. The project is built on the experience of the OECD/NEA Light Water Reactor (LWR) Uncertainty Analysis in Best-Estimate Modelling (UAM) benchmark activity, but focuses specifically on the peculiarities of HTGR designs and its simulation requirements. Two benchmark problems were defined with the prismatic type design represented by the MHTGR-350 design from General Atomics (GA) while a 250 MW modular pebble bed design, similar to the INET (China) and indirect-cycle PBMR (South Africa) designs are also included. In the paper more detail on the benchmark cases, the different specific phases and tasks and the latest status and plans are presented.

Frederik Reitsma; Gerhard Strydom; Bismark Tyobeka; Kostadin Ivanov

2012-10-01T23:59:59.000Z

218

Social Recommender Systems Based on Coupling Network Structure Analysis  

E-Print Network (OSTI)

The past few years has witnessed the great success of recommender systems, which can significantly help users find relevant and interesting items for them in the information era. However, a vast class of researches in this area mainly focus on predicting missing links in bipartite user-item networks (represented as behavioral networks). Comparatively, the social impact, especially the network structure based properties, is relatively lack of study. In this paper, we firstly obtain five corresponding network-based features, including user activity, average neighbors' degree, clustering coefficient, assortative coefficient and discrimination, from social and behavioral networks, respectively. A hybrid algorithm is proposed to integrate those features from two respective networks. Subsequently, we employ a machine learning process to use those features to provide recommendation results in a binary classifier method. Experimental results on a real dataset, Flixster, suggest that the proposed method can significan...

Hu, Xiao; Chen, Xiaolong; Zhang, Zi-Ke

2012-01-01T23:59:59.000Z

219

A Windows based graphical package for symmetrical components analysis  

Science Conference Proceedings (OSTI)

A Microsoft{reg_sign} Windows{trademark} graphical package to facilitate the teaching and learning of symmetrical component is described in this paper. This package is written in Microsoft Visual Basic 3.0. This software calculates and displays graphically, the ABC sequence and the corresponding symmetrical component phasors. Students can manipulate the graphical displays by keyboard input or by mouse operation. The objective of this package is to help the students to better understand the various aspects of symmetrical components` analysis through a user-friendly Graphical User Interface (GUI).

Yu, D.C.; Chen, D.; Ramasamy, S. [Univ. of Wisconsin, Milwaukee, WI (United States); Flinn, D.G. [Cooper Power System, Franksville, WI (United States)

1995-11-01T23:59:59.000Z

220

EDI-based and XML-based business-to-business integration: a statistical analysis  

Science Conference Proceedings (OSTI)

This paper analyses six factors that are expected to facilitate Electronic Data Interchange (EDI)-based or Extensible Markup Language (XML)-based Business-to-Business (B2B) integration. Following the Technology-Organisation-Environment ... Keywords: B2B integration, EDI, Extensible Markup Language, XML, business integration, business-to-, e-business, electronic business, electronic data interchange, standards

Juha-Miikka Nurmilaakso

2009-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Analysis of agent-based systems using decision procedures  

E-Print Network (OSTI)

In recent years, model checking has emerged as a remarkably e ective technique for the automated analysis of descriptions of hardware systems and communication protocols. To analyze software system descriptions, however, a direct application of model checking rarely succeeds [1, 3], since these descriptions often have huge (often in nite) state spaces which are not amenable to the nite-state methods of model checking. More important, the computation of a xpoint (the hallmark of the model checking approach) is not always needed in practice for the veri cation of an interesting class of properties, viz, properties that are invariantly true in all reachable states or transitions of the system. To establish a property asaninvariant, an induction proof, suitably augmented with automatically generated lemmas, often su ces. Language). To establish a formula as an invariant without any user guidance Salsa carries out an induction proof that utilizes tightly integrated decision procedures, currently a combination of BDD algorithms and a constraint solver for

Ramesh Bharadwaj

2001-01-01T23:59:59.000Z

222

Study of a Fault Analysis System for a Heat Supply Network Based on GIS  

E-Print Network (OSTI)

Conventional methods cannot satisfy the request of the layout and operation management in a heating system. The geographical information system (GIS) in a heat supply network can realize information conformity and information share roundly, which makes management of information improve to a new level in district heating. When fault of the heat supply network occurs, the traditional methods make fault reaction time long and the efficiency low, and enlarge the fault harm. The system of fault analysis in a heat supply network based on GIS mainly simulates and calculates according to various fault conditions. By selection of valve shut-off schemes in fault conditions and simulation of various fault conditions, the fault treatment scheme can be optimized. The results of simulation can be shown in the GIS graphics with the aid of advanced image display function of GIS. The application of this system brings great significance to heating system on the management enhancing, fault number-reducing, quick decision-making and influence area diminishing in case of fault.

Zou, P.; Liu, M.; Tang, H.; Wang, X.; Li, N.; Wang, W.

2006-01-01T23:59:59.000Z

223

Well production casing Brady No. 5 well, Geothermal Food Processors, Inc. , Fernley, Nevada. Falure analysis report  

DOE Green Energy (OSTI)

Failure of the casing of the Brady No. 5 resulted from severe external corrosion. The well is located in a mineral flat and it is proposed that during wet periods the exterior of the casing was exposed to aerated saturated chloride and/or sulfate salt solutions. These solutions appear to have completely destroyed the surface conductor and upper string casing and associated cements. The production casing then corroded until mechanical failure occurred.

Ellis, P.F.

1979-12-01T23:59:59.000Z

224

Proteogenomic analysis of bacteria and archaea: A 46 organism case study  

Science Conference Proceedings (OSTI)

Experimental evidence is increasingly being used to reassess the quality and accuracy of genome annotation. Proteomics data used for this purpose, called proteogenomics, can alleviate many of the problematic areas of genome annotation, e.g. short protein validation and start site assignment. We performed a proteogenomic analysis of 51 genomes spanning eight bacterial and archaeal phyla across the tree of life. These diverse datasets facilitated the development of a robust approach for proteogenomics that is functional across genomes varying in %GC, gene content, proteomic sampling depth, phylogeny, and genome size. In addition to finding evidence for 701 novel proteins, 1365 new start sites, and numerous dubious genes, we discovered sites of post-translational maturation in the form of proteolytic cleavage of 1095 signal peptides. Proteomics provides a powerful experimental data type to access and improve the quality of genome annotation. A key advantage is the direct correlation between protein annotation and a protein based assay. With the adoption of new sequencing technologies which have higher error rates than Sanger-based methods and the advances in proteomics, proteogenomics may become even more important in the future.

Venter, Eli; Smith, Richard D.; Payne, Samuel H.

2011-11-17T23:59:59.000Z

225

Measurements of aerosol properties from aircraft, satellite and ground-based remote sensing: a case-study from the Dust and Biomass-burning Experiment (DABEX)  

DOE Green Energy (OSTI)

Measurements of aerosol properties from aircraft, satellite and ground-based remote sensing: A case study from the Dust and Biomass burning Experiment (DABEX)

Johnson, B. T.; Christopher, S.; Haywood, J.; Osborne, S. R.; McFarlane, Sally; Hsu, C.; Salustro, C.; Kahn, Ralph

2009-04-28T23:59:59.000Z

226

Strategic backdrop analysis for fossil fuel planning. Task 1. Default Case. Report 468-117-07/03  

Science Conference Proceedings (OSTI)

This report presents data describing a default case analysis performed using the strategic backdrop analytical framework developed to facilitate fossil fuel planning within the DOE. Target years are 1985, 2000, and 2025. Residential, commercial, and industrial energy demands and impacts of energy technology implementation and market penetration are forecast using a set of energy technology assumptions.

Not Available

1980-06-01T23:59:59.000Z

227

Free Energy Component Analysis for Drug Design: A Case Study of HIV-1 Protease-Inhibitor Binding  

E-Print Network (OSTI)

Free Energy Component Analysis for Drug Design: A Case Study of HIV-1 Protease-Inhibitor Binding of the free energies of binding of protein-ligand complexes is presented. The method formulated involves developing molecular dynamics trajectories of the enzyme, the inhibitor, and the complex, followed by a free

Jayaram, Bhyravabotla

228

DOE'S ENERGY DATA BASE (EDB) VERSUS OTHER ENERGY-RELATED DATA BASES: A COMPARATIVE ANALYSIS  

E-Print Network (OSTI)

PLANTATIONS FIGURE 2 BIOGAS PROCESS TL'BIOGAS _ANAERQBICf o r Other Data Bases >BIOGAS/TI,DE,ID BIO(W)GAS/TI,DE,IDSEARCHES Methane (or Biogas) Production from Agricultural

Robinson, J.

2010-01-01T23:59:59.000Z

229

A PC-Based Interactive Imaging System Designed for INSAT Data Analysis and Monsoon Studies  

Science Conference Proceedings (OSTI)

A PC-based interactive image processing system has been developed for aiding the analysis of Indian Geosynchronous Satellite (INSAT) data for Asian monsoon studies. In view of its diminutive stature, the system has been given the name “MIDGET,” ...

Eric A. Smith; Kyung Whan Oh; Matthew R. Smith

1989-09-01T23:59:59.000Z

230

Cognitive factors in perspective-based reading (PBR): A protocol analysis study  

Science Conference Proceedings (OSTI)

The following study investigated cognitive factors involved in applying the Perspective-Based Reading (PBR) technique for defect detection in software inspections. Using the protocol analysis technique from cognitive science, the authors coded concurrent ...

Bryan Robbins; Jeff Carver

2009-10-01T23:59:59.000Z

231

CyberShake 3.0: Physics-based Probabilistic Seismic Hazard Analysis...  

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

CyberShake 3.0: Physics-based Probabilistic Seismic Hazard Analysis PI Name: Thomas Jordan PI Email: tjordan@usc.edu Institution: University of Southern California Allocation...

232

CyberShake3.0: Physics-Based Probabilistic Seismic Hazard Analysis...  

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

CyberShake3.0: Physics-Based Probabilistic Seismic Hazard Analysis PI Name: Thomas Jordan PI Email: tjordan@usc.edu Institution: University of Southern California Allocation...

233

EM analysis of rijndael and ECC on a wireless java-based PDA  

Science Conference Proceedings (OSTI)

Although many wireless portable devices offer more resistance to bus probing and power analysis due to their compact size, susceptibility to electromagnetic (EM) attacks must be analyzed. This paper demonstrates, for the first time, a real EM-based attack ...

Catherine H. Gebotys; Simon Ho; C. C. Tiu

2005-08-01T23:59:59.000Z

234

Reliability analysis of component-based systems with multiple failure modes  

Science Conference Proceedings (OSTI)

This paper presents a novel approach to the reliability modeling and analysis of a component-based system that allows dealing with multiple failure modes and studying the error propagation among components. The proposed model permits to specify the components ...

Antonio Filieri; Carlo Ghezzi; Vincenzo Grassi; Raffaela Mirandola

2010-06-01T23:59:59.000Z

235

Evolution of Analysis Error and Adjoint-Based Sensitivities: Implications for Adaptive Observations  

Science Conference Proceedings (OSTI)

The structure and evolution of analysis error and adjoint-based sensitivities [potential enstrophy initial singular vectors (SVs) and gradient sensitivities of the forecast error to initial conditions] are compared following a cyclone development ...

Hyun Mee Kim; Michael C. Morgan; Rebecca E. Morss

2004-04-01T23:59:59.000Z

236

Measurement Based Scenario Analysis of Short-Range Distribution System Planning  

E-Print Network (OSTI)

year to set up a distributed are: no component on outage, one substation transformer on generation (DG obtained through derived from the historical measurement data and incorporated a worst-case analysis system at demonstrated when investigating the system in a 5-year lead Støvring in Denmark. Simulation

Bak-Jensen, Birgitte

237

A Malaysian Case Study on the Transmission Expansion/Investment Using Value-Based Approach  

Science Conference Proceedings (OSTI)

The introduction of Incentive Based Regulation as the tariff framework in Malaysia's Electricity Supply Industry calls for efficiency in the creation of a new asset while meeting the required reliability. In line with the new regulatory framework, Tenaga ... Keywords: asset management, incentive based regulation, life cycle cost, value-based approach, reliability

Joon Ibrahim, Nor Ziha Zainol Abidin

2013-04-01T23:59:59.000Z

238

Domains of competence of fuzzy rule based classification systems with data complexity measures: A case of study using a fuzzy hybrid genetic based machine learning method  

Science Conference Proceedings (OSTI)

The analysis of data complexity is a proper framework to characterize the tackled classification problem and to identify domains of competence of classifiers. As a practical outcome of this framework, the proposed data complexity measures may facilitate ... Keywords: Classification, Data complexity, Fuzzy rule based systems, Genetic fuzzy systems

Julián Luengo; Francisco Herrera

2010-01-01T23:59:59.000Z

239

Case Study; A Failure Analysis of a Pinion Thrust Runner Shaft  

Science Conference Proceedings (OSTI)

Symposium, Charles R. Morin Memorial Symposium on Failure Analysis and ... Tools for Failure Event Database Management and Probability Risk Analysis for ...

240

Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility  

E-Print Network (OSTI)

Incentives Analysis Supply Mix Purchased Power Natural GasIncentives Analysis Arizona Public Service Nuclear Purchased Power Nevada Power Purchased Power Nuclear Coal Renewables Renewables Natural Gas

Cappers, Peter

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Symposium article: Simulation-based L2 writing instruction: Enhancement through genre analysis  

Science Conference Proceedings (OSTI)

Researchers have highlighted various benefits of the simulation-based approach to second language (L2) writing instruction. In this article, the author argues, with specific pedagogical scenarios, that an explicit focus on genre and genre analysis in ... Keywords: EAP, ESP, L2 writing, genre analysis, genre studies, processing of content materials, simulations, textual practices, writing accuracy, writing instruction

An Cheng

2007-03-01T23:59:59.000Z

242

Graph-based ranking algorithms for e-mail expertise analysis  

Science Conference Proceedings (OSTI)

In this paper we study graph--based ranking measures for the purpose of using them to rank email correspondents according to their degree of expertise on subjects of interest. While this complete expertise analysis consists of several steps, in this ... Keywords: digraph node ranking, expert finding, ordered list distance, social network analysis

Byron Dom; Iris Eiron; Alex Cozzi; Yi Zhang

2003-06-01T23:59:59.000Z

243

A user term visualization analysis based on a social question and answer log  

Science Conference Proceedings (OSTI)

The authors of this paper investigate terms of consumers' diabetes based on a log from the Yahoo!Answers social question and answers (Q&A) forum, ascertain characteristics and relationships among terms related to diabetes from the consumers' perspective, ... Keywords: Diabetes, Information seeking pattern, Q&A, Social question and answers, Term analysis, Visualization analysis

Jin Zhang, Yiming Zhao

2013-09-01T23:59:59.000Z

244

Event-based approach to money laundering data analysis and visualization  

Science Conference Proceedings (OSTI)

Crime specific event patterns are crucial in detecting potential relationships among suspects in criminal networks. However, current link analysis tools commonly used in detection do not utilize such patterns for detecting various types of crimes. These ... Keywords: crime detection, event-based data analysis, money laundering, visualization

Tat-Man Cheong; Yain-Whar Si

2010-09-01T23:59:59.000Z

245

Pseudo three-dimensional vision-based nail-fold morphological and hemodynamic analysis  

Science Conference Proceedings (OSTI)

In this study, a Pseudo three-dimensional Vision-based Nail-fold Morphological and Hemodynamic Analysis (PTVNMHA) is proposed to automatically extract morphological/hemodynamic features from a microscopic nail-fold image sequence, reconstruct the corresponding ... Keywords: Blood flow rate, Blood flow velocity, Finger nail-fold morphological/hemodynamic analysis, Microcirculation, Pseudo three-dimensional capillary reconstruction

Lun-Chien Lo; Ker-Cheng Lin; Yuan-Nian Hsu; Tsung-Po Chen; John Y. Chiang; Yung-Fu Chen; Yin-Tso Liu

2012-09-01T23:59:59.000Z

246

Analysis of enzymopathies in the human red blood cells by constraint-based stoichiometric modeling approaches  

Science Conference Proceedings (OSTI)

The human red blood cell (RBC) metabolism is investigated by calculating steady state fluxes using constraint-based stoichiometric modeling approaches. For the normal RBC metabolism, flux balance analysis (FBA) is performed via optimization of various ... Keywords: Enzymopathy, Flux balance analysis, Minimization of metabolic adjustment, Red blood cell, Regulatory on-off minimization

Saliha Durmu? Tekir; Tunahan Çak?r; Kutlu Ö. ílgen

2006-10-01T23:59:59.000Z

247

Distributed energy resources in practice: A case study analysis and validation of LBNL's customer adoption model  

E-Print Network (OSTI)

for analysis of microgrids, or small semi-autonomousdecisions of hypothetical microgrids offer insight into the

Bailey, Owen; Creighton, Charles; Firestone, Ryan; Marnay, Chris; Stadler, Michael

2003-01-01T23:59:59.000Z

248

DOE'S ENERGY DATA BASE (EDB) VERSUS OTHER ENERGY-RELATED DATA BASES: A COMPARATIVE ANALYSIS  

E-Print Network (OSTI)

J g R l O I T H m WftSTFS DOE EOB Search S t r a t e g yF r a n c i s c o , CA, DOE'S ENERGY DATA BASE (EDB) VERSUSContract W-740S-ENQ-48 iVtt DOE'* Energy Data Bate (EDB)

Robinson, J.

2010-01-01T23:59:59.000Z

249

Automated Aspect Recommendation through Clustering-Based Fan-in Analysis  

Science Conference Proceedings (OSTI)

Identifying code implementing a crosscutting concern (CCC) automatically can benefit the maintainability and evolvability of the application. Although many approaches have been proposed to identify potential aspects, a lot of manual work is typically ... Keywords: ranking metric, automated aspect recommendation, clustering-based fan-in analysis, crosscutting concern, refactorable aspects, aspect mining, method clusters, lexical based clustering

Danfeng Zhang; Yao Guo; Xiangqun Chen

2008-09-01T23:59:59.000Z

250

High dimensional model representation based formulations for fuzzy finite element analysis of structures  

Science Conference Proceedings (OSTI)

This paper presents a practical approach based on high dimensional model representation (HDMR) for analyzing the response of structures with fuzzy parameters. The proposed methodology involves integrated finite element modeling, HDMR based response surface ... Keywords: Explicit formulation, Finite element, Fuzzy analysis, High dimensional model representation, Implicit formulation, Response surface

A. S. Balu; B. N. Rao

2012-03-01T23:59:59.000Z

251

Agent-based analysis of patterns in crowd behaviour involving contagion of mental states  

Science Conference Proceedings (OSTI)

In this paper an agent-based analysis is made of patterns in crowd behaviour, in particular to simulate a real-life incident that took place on May 4, 2010 in Amsterdam. As a basis, an existing agent-based model is used for contagion of emotions, beliefs ... Keywords: belief, contagion, crowd behaviour, emotion, intention

Tibor Bosse; Mark Hoogendoorn; Michel C. A. Klein; Jan Treur; C. Natalie Van Der Wal

2011-06-01T23:59:59.000Z

252

WINACS: construction and analysis of web-based computer science information networks  

Science Conference Proceedings (OSTI)

WINACS (Web-based Information Network Analysis for Computer Science) is a project that incorporates many recent, exciting developments in data sciences to construct a Web-based computer science information network and to discover, retrieve, rank, cluster, ... Keywords: WINACS, information networks, web mining

Tim Weninger; Marina Danilevsky; Fabio Fumarola; Joshua Hailpern; Jiawei Han; Thomas J. Johnston; Surya Kallumadi; Hyungsul Kim; Zhijin Li; David McCloskey; Yizhou Sun; Nathan E. TeGrotenhuis; Chi Wang; Xiao Yu

2011-06-01T23:59:59.000Z

253

Multi-Agent-Based simulation for analysis of transport policy and infrastructure measures  

Science Conference Proceedings (OSTI)

In this paper we elaborate on the usage of multi-agent-based simulation (MABS) for quantitative impact assessment of transport policy and infrastructure measures. We provide a general discussion on how to use MABS for freight transport analysis, focusing ... Keywords: MABS, freight transportation, multi-agent systems, multi-agent-based simulation, supply chain simulation, transport policy assessment

Johan Holmgren; Linda Ramstedt; Paul Davidsson; Jan A. Persson

2011-11-01T23:59:59.000Z

254

Single-Step Syngas-to-Distillates (S2D) Process Based on Biomass-Derived Syngas - A Techno-Economic Analysis  

DOE Green Energy (OSTI)

This study compared biomass gasification based syngas-to-distillate (S2D) systems using techno-economic analysis (TEA). Three cases, state of technology (SOT), goal, and conventional, were compared in terms of performance and cost. The SOT case represented the best available experimental results for a process starting with syngas using a single-step dual-catalyst reactor for distillate generation. The conventional case mirrored a conventional two-step S2D process consisting of separate syngas-to-methanol and methanol-to-gasoline (MTG) processes. The goal case assumed the same performance as the conventional, but with a single-step S2D technology. TEA results revealed that the SOT was more expensive than the conventional and goal cases. The SOT case suffers from low one-pass yield and high selectivity to light hydrocarbons, both of which drive up production cost. Sensitivity analysis indicated that light hydrocarbon yield and single pass conversion efficiency were the key factors driving the high cost for the SOT case.

Zhu, Y.; Jones, S. B.; Biddy, M. J.; Dagle, R. A.; Palo, D. R.

2012-08-01T23:59:59.000Z

255

Computer Based Training: Engineering Technical Training Modules - Finite Element Analysis v1.0  

Science Conference Proceedings (OSTI)

Finite Element Analysis ETTM, Version 1.0 is a computer45based training module that allows users to access training when desired and review it at their own pace. This module provides information about the basics of finite element analysis and modeling. This training should be used for position specific and/or continuing training for individuals involved with finite element analysis. This computer-based training (CBT) module is intended for use by new engineers as well as engineers changing jobs where bas...

2009-12-01T23:59:59.000Z

256

Risk-Based Maintenance Application Case Study: Risk Evaluation and Prioritization at a Fossil Power Plant  

Science Conference Proceedings (OSTI)

This report describes an application of the use of risk-based maintenance prioritization at a fossil power plant. In 2002, EPRI issued a report titled "Risk Based Maintenance Guideline" (product number 1004382) for fossil power plants. That guideline described several risk-based methods, which are being used in other industries primarily within the United States. Since then, a method called Risk Evaluation and Prioritization (REaP) has been evaluated for its use in decision making at fossil power plants ...

2003-12-18T23:59:59.000Z

257

DOE Hydrogen Analysis Repository: H2A Case Study: Current Central...  

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

Coal without Sequestration Project Summary Full Title: H2A Case Study: Current (2005) Hydrogen from Coal without CO2 Capture and Sequestration Project ID: 231 Principal...

258

DOE Hydrogen Analysis Repository: H2A Case Study: Future Distributed...  

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

Steam Reformer Project Summary Full Title: H2A Case Study: Future (2025) Ethanol Steam Reformer (SR) at Forecourt 1500 kgday Project ID: 241 Principal Investigator: Brian James...

259

DOE Hydrogen Analysis Repository: H2A Case Study: Current Distributed...  

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

Reformer Project Summary Full Title: H2A Case Study: Current (2005) Ethanol Steam Reformer (SR) at Forecourt 1500 kgday Project ID: 234 Principal Investigator: Brian James...

260

Case study: Feasibility analysis of renewable energy supply systems in a small grid connected resort.  

E-Print Network (OSTI)

??This paper presents a case study on the feasibility of a small grid connected resort in the marine west coast climate of Canada to implement… (more)

Robins, Jody

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Business Practices for Environmental Excellence: Guidelines: Based on Case Studies of Other Industries  

Science Conference Proceedings (OSTI)

As competition unfolds, electric companies can leverage the experience of other industries that have developed successful environmental programs under similar market conditions. The case studies and guidelines in this report offer valuable pointers -- both specific business practices and general organizational approaches -- to utilities seeking to manage environmental performance as a corporate asset.

1998-10-22T23:59:59.000Z

262

Developing Guidance and Tool Support for Rationale-based Use Case Specification  

E-Print Network (OSTI)

Technology System), a prototype augmented reality application for nuclear powerplant technicians. Three weeks (Fig. 4.). The students were provided with a nuclear powerplant maintenance scenario illustrating case step has a number, and actor and system steps have to alternate. This way, we hope to avoid

Bruegge, Bernd

263

ReEDS Model Documentation: Base Case Data and Model Description  

E-Print Network (OSTI)

/ electricity generated Utility emissions rates based on eGRID 2007 V1.1 data from U.S. EPA New Jersey New

264

Habitat-Lite: A GSC case study based on free text terms for environmental metadata  

E-Print Network (OSTI)

been assigned specific terms related to extreme habitatsstudy based on free text terms for environmental metadatato- use (small) set of terms (“Habitat-Lite”) that captures

Hirschman, Lynette

2008-01-01T23:59:59.000Z

265

Validation of PV performance models using satellite-based irradiance measurements : a case study.  

DOE Green Energy (OSTI)

Photovoltaic (PV) system performance models are relied upon to provide accurate predictions of energy production for proposed and existing PV systems under a wide variety of environmental conditions. Ground based meteorological measurements are only available from a relatively small number of locations. In contrast, satellite-based radiation and weather data (e.g., SUNY database) are becoming increasingly available for most locations in North America, Europe, and Asia on a 10 x 10 km grid or better. This paper presents a study of how PV performance model results are affected when satellite-based weather data is used in place of ground-based measurements.

Stein, Joshua S.; Parkins, Andrew (Clean Power Research); Perez, Richard (University at Albany)

2010-05-01T23:59:59.000Z

266

Synthesis of Enterprise and Value-Based Methods for Multiattribute Risk Analysis  

SciTech Connect

This paper describes a method for performing multiattribute decision analysis to prioritize ap-proaches to handling risks during the development and operation of complex socio-technical systems. The method combines risk categorization based on enterprise views, risk prioritization of the categories based on the Analytic Hierarchy Process (AHP), and more standard probability-consequence ratings schemes. We also apply value-based testing me-thods used in software development to prioritize risk-handling approaches. We describe a tool that synthesizes the methods and performs a multiattribute analysis of the technical and pro-grammatic risks on the Next Generation Nuclear Plant (NGNP) enterprise.

C. Robert Kenley; John W. Collins; John M. Beck; Harold J. Heydt; Chad B. Garcia

2001-10-01T23:59:59.000Z

267

Information systems continuance intention of web-based applications customers: The case of online banking  

Science Conference Proceedings (OSTI)

The proliferation of the Internet has not only allowed businesses to offer their products and services through web-based applications, but it has also undermined their ability to retain their customers. It has reduced search costs, opened up barriers ... Keywords: Commitment, Commitment-Trust theory, End-user relationship, Relationship marketing, Retention, Trust, Web-based application

Banphot Vatanasombut; Magid Igbaria; Antonis C. Stylianou; Waymond Rodgers

2008-11-01T23:59:59.000Z

268

Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility  

E-Print Network (OSTI)

are placed into a utility’s rate base where the investmentis not technically part of the utility’s rate base. Energytechnically part of the utility’s rate base. D.2 Costs Most

Cappers, Peter

2009-01-01T23:59:59.000Z

269

Macroalgae Analysis A National GIS-based Analysis of Macroalgae Production Potential Summary Report and Project Plan  

DOE Green Energy (OSTI)

The overall project objective is to conduct a strategic analysis to assess the state of macroalgae as a feedstock for biofuels production. The objective in FY11 is to develop a multi-year systematic national assessment to evaluate the U.S. potential for macroalgae production using a GIS-based assessment tool and biophysical growth model developed as part of these activities. The initial model development for both resource assessment and constraints was completed and applied to the demonstration areas. The model for macroalgal growth was extended to the EEZ off the East and West Coasts of the United States, and a plan to merge the findings for an initial composite assessment was developed. In parallel, an assessment of land-based, port, and offshore infrastructure needs based on published and grey literature was conducted. Major information gaps and challenges encountered during this analysis were identified. Also conducted was an analysis of the type of local, state, and federal requirements that pertain to permitting land-based facilities and nearshore/offshore culture operations

Roesijadi, Guritno; Coleman, Andre M.; Judd, Chaeli; Van Cleve, Frances B.; Thom, Ronald M.; Buenau, Kate E.; Tagestad, Jerry D.; Wigmosta, Mark S.; Ward, Jeffrey A.

2011-12-01T23:59:59.000Z

270

Rights-based evaluation of government responses to a given 'natural' disaster : Katrina as case study  

E-Print Network (OSTI)

Disaster impacts human mobility and a rights-based approach to disaster response is needed to protect the human rights of those who seek migration as an adaptation strategy. This paper deals with returning to a place after ...

Haeffner, Melissa (Melissa Ann)

2010-01-01T23:59:59.000Z

271

Outline of a qualitative analysis for the human motion in case of ergometer rowing  

Science Conference Proceedings (OSTI)

Today, there are numerous methods of quantitative analysis of the human movement. Basic quality of these methods is the high degree of accuracy and reliability of the obtained data. According to systematic approach human movement is qualified as a complex ... Keywords: fuzzification, human motion, qualitative analysis, quantitative analysis, rowing

Ante Panjkota; Ivo Stan?ic; Tamara Šupuk

2009-09-01T23:59:59.000Z

272

nicter: a large-scale network incident analysis system: case studies for understanding threat landscape  

Science Conference Proceedings (OSTI)

We have been developing the Network Incident analysis Center for Tactical Emergency Response (nicter), whose objective is to detect and identify propagating malwares. The nicter mainly monitors darknet, a set of unused IP addresses, to observe global ... Keywords: correlation analysis, malware analysis, network monitoring

Masashi Eto; Daisuke Inoue; Jungsuk Song; Junji Nakazato; Kazuhiro Ohtaka; Koji Nakao

2011-04-01T23:59:59.000Z

273

On the practice of artificial intelligence based predictive control scheme: a case study  

Science Conference Proceedings (OSTI)

This paper describes a novel artificial intelligence based predictive control scheme for the purpose of dealing with so many complicated systems. In the control scheme proposed here, the system has to be first represented through a multi-Takagi-Sugeno-Kang ... Keywords: Drum-type boiler-turbine system, GPC identifier, GPC scheme, Industrial tubular heat exchanger system, Linear model approximation, Multi-GPC scheme, Multi-TSK fuzzy-based model approach, NLGPC scheme, System operating points

A. H. Mazinan; M. Sheikhan

2012-01-01T23:59:59.000Z

274

A framework for graph-based synthesis, analysis, and visualization of HPC cluster job data.  

Science Conference Proceedings (OSTI)

The monitoring and system analysis of high performance computing (HPC) clusters is of increasing importance to the HPC community. Analysis of HPC job data can be used to characterize system usage and diagnose and examine failure modes and their effects. This analysis is not straightforward, however, due to the complex relationships that exist between jobs. These relationships are based on a number of factors, including shared compute nodes between jobs, proximity of jobs in time, etc. Graph-based techniques represent an approach that is particularly well suited to this problem, and provide an effective technique for discovering important relationships in job queuing and execution data. The efficacy of these techniques is rooted in the use of a semantic graph as a knowledge representation tool. In a semantic graph job data, represented in a combination of numerical and textual forms, can be flexibly processed into edges, with corresponding weights, expressing relationships between jobs, nodes, users, and other relevant entities. This graph-based representation permits formal manipulation by a number of analysis algorithms. This report presents a methodology and software implementation that leverages semantic graph-based techniques for the system-level monitoring and analysis of HPC clusters based on job queuing and execution data. Ontology development and graph synthesis is discussed with respect to the domain of HPC job data. The framework developed automates the synthesis of graphs from a database of job information. It also provides a front end, enabling visualization of the synthesized graphs. Additionally, an analysis engine is incorporated that provides performance analysis, graph-based clustering, and failure prediction capabilities for HPC systems.

Mayo, Jackson R.; Kegelmeyer, W. Philip, Jr.; Wong, Matthew H.; Pebay, Philippe Pierre; Gentile, Ann C.; Thompson, David C.; Roe, Diana C.; De Sapio, Vincent; Brandt, James M.

2010-08-01T23:59:59.000Z

275

Statistically based uncertainty analysis for ranking of component importance in the thermal-hydraulic safety analysis of the Advanced Neutron Source Reactor  

SciTech Connect

The Analytic Hierarchy Process (AHP) has been used to help determine the importance of components and phenomena in thermal-hydraulic safety analyses of nuclear reactors. The AHP results are based, in part on expert opinion. Therefore, it is prudent to evaluate the uncertainty of the AHP ranks of importance. Prior applications have addressed uncertainty with experimental data comparisons and bounding sensitivity calculations. These methods work well when a sufficient experimental data base exists to justify the comparisons. However, in the case of limited or no experimental data the size of the uncertainty is normally made conservatively large. Accordingly, the author has taken another approach, that of performing a statistically based uncertainty analysis. The new work is based on prior evaluations of the importance of components and phenomena in the thermal-hydraulic safety analysis of the Advanced Neutron Source Reactor (ANSR), a new facility now in the design phase. The uncertainty during large break loss of coolant, and decay heat removal scenarios is estimated by assigning a probability distribution function (pdf) to the potential error in the initial expert estimates of pair-wise importance between the components. Using a Monte Carlo sampling technique, the error pdfs are propagated through the AHP software solutions to determine a pdf of uncertainty in the system wide importance of each component. To enhance the generality of the results, study of one other problem having different number of elements is reported, as are the effects of a larger assumed pdf error in the expert ranks. Validation of the Monte Carlo sample size and repeatability are also documented.

Wilson, G.E.

1992-01-01T23:59:59.000Z

276

ESS 2012 Peer Review - Iron Based Flow Batteries for Low Cost Grid Level Energy Storage - Jesse Wainright, Case Western Reserve  

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

authors gratefully acknowledge the support of the Department of Energy/Office of Electricity's Energy Storage Program. authors gratefully acknowledge the support of the Department of Energy/Office of Electricity's Energy Storage Program. Iron Based Flow Batteries for Low Cost Grid Level Energy Storage J.S. Wainright, R. F. Savinell, P.I.s Dept. of Chemical Engineering, Case Western Reserve University Purpose Impact on Iron Based Batteries on the DOE OE Energy Storage Mission Recent Results Recent Results Develop efficient, cost-effective grid level storage capability based on iron. Goals of this Effort: * Minimize Cost/Watt by increasing current density - Hardware Cost >> Electrolyte Cost * Minimize Cost/Whr by increasing plating capacity * Maximize Efficiency by minimizing current lost to hydrogen evolution Electrochemistry of the all-Iron system:

277

An application of regression model for evaluation of blast vibration in an opencast coal mine: a case analysis  

Science Conference Proceedings (OSTI)

Different models of vibration studies are examined. A case analysis to determine the parameters governing the prediction of blast vibration in an opencast coal mine is described. A regression model was developed to evaluate peak particle velocity (PPV) of the blast. The results are applicable to forecasting ground vibration before blasting and to the design of various parameters in controlled blasting. 16 refs., 1 fig., 1 tab.

Brahma, K.C.; Pal, B.K.; Das, C. [CMPDI, Bhubaneswar (India)

2005-07-01T23:59:59.000Z

278

DOE Hydrogen Analysis Repository: H2A Case Study: Future Central...  

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

Coal without Sequestration Project Summary Full Title: H2A Case Study: Longer-Term (2020-2030) Hydrogen from Coal without CO2 Capture and Sequestration Project ID: 238 Principal...

279

Wavelet Analysis of Cirrus Multiscale Structures from Lidar Backscattering: A Cirrus Uncinus Complex Case Study  

Science Conference Proceedings (OSTI)

Although cirrus cloud structures play an important role in dynamics issues, cloud radiative calculations, and cloud parameter retrievals from satellite measurements, fully understanding cirrus cloud structures still remains a challenge. A case ...

Likun Wang; Kenneth Sassen

2008-10-01T23:59:59.000Z

280

Comparative Analysis of the Local Observation-Based (LOB) Method and the Nonparametric Regression-Based Method for Gridded Bias Correction in Mesoscale Weather Forecasting  

Science Conference Proceedings (OSTI)

The comparative analysis of three methods for objective grid-based bias removal in mesoscale numerical weather prediction models is considered. The first technique is the local observation-based (LOB) method that extends further the approaches of ...

Yulia R. Gel

2007-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Benefit Analysis of Energy Storage: Case Study with Sacramento Municipal Utility District  

Science Conference Proceedings (OSTI)

Energy storage systems may support several electric utility use cases, including grid support, outage mitigation, capital deferral, and improved services to end users. Electric Power Research Institute (EPRI) research in 2009 developed analytics and methods to quantify the locational value of electric energy storage options. The objectives of this project are to apply previously developed and generic energy storage dispatch models and evaluation methods to several cases and locations in the Sacramento Mu...

2011-09-01T23:59:59.000Z

282

Gene- or region-based association study via kernel principal component analysis  

E-Print Network (OSTI)

association studies. Am J Hum Genet 2002, 70(5):1257-1268. 19. Fan R, Knapp M: Genome association studies of complex diseases by case-control designs. Am J Hum Genet 2003, 72(4):850-868. 20. Peng Q, Zhao J, Xue F: PCA-based bootstrap confidence interval tests... cases and N/2 controls, N = 1000, 2000, ..., 12000) using the R packages kernlab (http://cran.r-project.org/web/ packages/kernlab/index.html) and Design (http://cran.r- project.org/web/packages/Design/index.html). Under H0, we repeat 10 000 simulations...

Gao, Qingsong; He, Yungang; Yuan, Zhongshang; Zhao, Jinghua; Zhang, Bingbing; Xue, Fuzhong

2011-08-26T23:59:59.000Z

283

U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis | Open  

Open Energy Info (EERE)

Technical Potentials: A GIS-Based Analysis Technical Potentials: A GIS-Based Analysis Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis Abstract Renewable energy technical potential as defined in this report represents the achievable energy generation of a particular technology given system performance, topographic limitations, environmental, and land-use constraints. The primary benefit of assessing technical potential is that it establishes an upper-boundary estimate of development potential. Authors Anthony Lopez, Billy Roberts, Donna Heimiller, Nate Blair and Gian Porro Organization National Renewable Energy Laboratory Published National Renewable Energy Laboratory, 2012 Report Number NREL/TP-6A20-51946 DOI

284

Monitoring Based Commissioning: Benchmarking Analysis of 24 UC/CSU/IOU  

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

Monitoring Based Commissioning: Benchmarking Analysis of 24 UC/CSU/IOU Monitoring Based Commissioning: Benchmarking Analysis of 24 UC/CSU/IOU Projects Title Monitoring Based Commissioning: Benchmarking Analysis of 24 UC/CSU/IOU Projects Publication Type Report LBNL Report Number LBNL-1972E Year of Publication 2009 Authors Mills, Evan, and Paul A. Mathew Call Number LBNL-1972E Abstract HVAC systems that are designed without properly accounting for equipment load variation across laboratory spaces in a facility can significantly increase simultaneous heating and cooling, particularly for systems that use zone reheat for temperature control. This best practice guide describes the problem of simultaneous heating and cooling resulting from load variations, and presents several technological and design process strategies to minimize it.

285

Analysis of Customer Enrollment Patterns in TIme-Based Rate Programs:  

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

Analysis of Customer Enrollment Patterns in TIme-Based Rate Analysis of Customer Enrollment Patterns in TIme-Based Rate Programs: Initial Results from the SGIG Consumer Behavior Studies (July 2013) Analysis of Customer Enrollment Patterns in TIme-Based Rate Programs: Initial Results from the SGIG Consumer Behavior Studies (July 2013) The U.S. Department of Energy is implementing the Smart Grid Investment Grant (SGIG) program under the American Recovery and Reinvestment Act of 2009 (Recovery Act). The SGIG program involves 99 projects that are deploying smart grid technologies, tools, and techniques for electric transmission, distribution, advanced metering, and customer systems. A subset of the 99 SGIG projects is conducting consumer behavior studies. These studies examine the response of residential and small commercial

286

A Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of  

Open Energy Info (EERE)

Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of Altered Rocks- An Example From The Acoculco Caldera, Eastern Trans-Mexican Volcanic Belt Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of Altered Rocks- An Example From The Acoculco Caldera, Eastern Trans-Mexican Volcanic Belt Details Activities (0) Areas (0) Regions (0) Abstract: We propose a simple graphic and statistical method for processing short-wave infrared (SWIR) reflectivity spectra of alteration minerals, which classifies spectra according to their shape and absorption features, thus obtaining groups of spectra equivalent to mineral assemblages. It also permits selection of fewer samples for further mineralogical verification.

287

Agent-based collaborative product design engineering: an industrial case study  

Science Conference Proceedings (OSTI)

Globalization and rapid evolving of Internet and Web-based technologies have revolutionized the product development process. Engineering a product is a complex process involving the integration of distributed resources, such as human beings, engineering ... Keywords: collaboration, internet-aided design, product design engineering, software agents, workflow

Qi Hao; Weiming Shen; Zhan Zhang; Seong-Whan Park; Jai-Kyung Lee

2006-01-01T23:59:59.000Z

288

Agent-based collaborative product design engineering: An industrial case study  

Science Conference Proceedings (OSTI)

Globalization and rapid evolving of Internet and Web-based technologies have revolutionized the product development process. Engineering a product is a complex process involving the integration of distributed resources, such as human beings, engineering ... Keywords: Collaboration, Internet-aided design, Product design engineering, Software agents, Workflow

Qi Hao; Weiming Shen; Zhan Zhang; Seong-Whan Park; Jai-Kyung Lee

2006-01-01T23:59:59.000Z

289

Judicial support systems: ideas for a privacy ontology-based case analyzer  

Science Conference Proceedings (OSTI)

Nowadays, ontology is applied as an integral part of many applications in several domains, especially in the world of law. The ontology based judicial support system is believed as a useful tool to support, for example, the legal argumentation assistant ... Keywords: privacy directives, privacy ontology, privacy ontology structure, privacy principles, woolf reforms

Yan Tang; Robert Meersman

2005-10-01T23:59:59.000Z

290

Computers & Geosciences 29 (2003) 351359 A case against Kd-based transport models: natural attenuation  

E-Print Network (OSTI)

)-based transport model. The study site is a contaminated groundwater aquifer underneath a uranium mill tailings prediction of the fate and transport of regulated metals and radionuclides in the subsurface of abandoned mining sites is critical to the assessment of environmental impact and to the development of effective

Polly, David

291

Verification & validation by docking: a case study of agent-based models of Anopheles gambiae  

Science Conference Proceedings (OSTI)

In this paper, using the technique of docking, we perform verification & validation (V&V) of agent-based simulation models that simulate the life cycle of Anopheles gambiae, the primary vector for malaria transmission. Working with one ... Keywords: Anopheles gambiae, docking, malaria epidemiology, verification & validation

S. M. Niaz Arifin; Gregory J. Davis; Ying Zhou

2010-07-01T23:59:59.000Z

292

Evaluation of a flowchart-based EHR query system: A case study of RetroGuide  

Science Conference Proceedings (OSTI)

Provision of query systems which are intuitive for non-experts has been recognized as an important informatics challenge. We developed a prototype of a flowchart-based analytical framework called RetroGuide that enables non-experts to formulate query ... Keywords: Biomedical informatics, Data warehouse, Evaluation, Informatics, Mixed-method, Query system, RetroGuide, SQL

Vojtech Huser; Scott P. Narus; Roberto A. Rocha

2010-02-01T23:59:59.000Z

293

DOE Hydrogen Analysis Repository: H2A Case Study: Future Distributed...  

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

performance from projections and quotes. Models Used: H2A Production Model; H2A Delivery Scenario Analysis Model Timeframe Studied: 2025 ProductsDeliverables Description:...

294

Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility  

E-Print Network (OSTI)

States Million dollars Billion dollars xiv Energy Efficiency IncentivesEnergy Efficiency Incentives Analysis Introduction Many statestate and federal government taxes). xvi Energy Efficiency Incentives

Cappers, Peter

2009-01-01T23:59:59.000Z

295

Building a Knowledge Brokering System using social network analysis: A case study of the Korean financial industry  

Science Conference Proceedings (OSTI)

The importance of knowledge is increasing in our global and knowledge-based society. As a part of knowledge management, successful knowledge transfer can improve an organization's competitive advantages and increase an organization's valuable knowledge ... Keywords: Knowledge Brokering System, Knowledge management, Knowledge transfer, Social network analysis

Sungjin Kim; Euiho Suh; Youngjoon Jun

2011-11-01T23:59:59.000Z

296

Testing Visual Information Retrieval Methodologies Case Study: Comparative Analysis of Textual, Icon, Graphical,  

E-Print Network (OSTI)

on segmentation of the underlying full-text into topics, where grayscale rectangular areas show the relative, not to implement all the bells and whistles of the full systems. In our case study we have chosen to include text. At the same time, our ability to read the documents returned from our searches to the Web or the bibliographic

Brooks, Stephen

297

Wind power resource assessment in complex urban environments: MIT campus case-study using CFD Analysis  

E-Print Network (OSTI)

Wind power resource assessment in complex urban environments: MIT campus case-study using CFD of Technology, 2Meteodyn Objectives Conclusions References [1] TopoWind software, User Manual [2] Wind Resource Assessment Handbook: Fundamentals for Conducting a Successful Wind Monitoring Program, AWS Scientific, Inc

298

Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility  

E-Print Network (OSTI)

adopted, average retail rates increase by 1.0 to 1.4 mills/No EE case. Average rates increase by 3.6-4.2 mills/ kWh ifback the need, retail rates increase by only 8 mills/kWh

Cappers, Peter

2009-01-01T23:59:59.000Z

299

Downscaling of ECMWF Ensemble Forecasts for Cases of Severe Weather: Ensemble Statistics and Cluster Analysis  

Science Conference Proceedings (OSTI)

Dynamical downscaling has been applied to global ensemble forecasts to assess its impact for four cases of severe weather (precipitation and wind) over various parts of Croatia. It was performed with the Croatian 12.2-km version of the Aire ...

?edo Brankovi?; Blaženka Matja?i?; Stjepan Ivatek-Šahdan; Roberto Buizza

2008-09-01T23:59:59.000Z

300

Deep Convection East of the Andes Cordillera: A Test Case Analysis of Airmass Origin  

Science Conference Proceedings (OSTI)

Warm and moist air masses, required to generate deep convection east of the Andes Cordillera, are generally the result of humidity transport by the so-called low-level jet (LLJ). In this paper, it is shown from detailed test cases that the ...

Hector Teitelbaum; Hervé Le Treut; Mohamed Moustaoui; Gustavo C. Cabrera; Guillermo Ibañez

2008-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Benchmarking european airports based on a profitability envelope: a break-even analysis  

Science Conference Proceedings (OSTI)

In this paper a simplified benchmarking methodology is presented. This new approach is based on the computation of a discrete envelope over distributed data points. Financial and operational data from 139 European airports in 10 countries was collected ... Keywords: airport benchmarking, break-even analysis, profit maximization

Branko Bubalo

2012-09-01T23:59:59.000Z

302

Energy consumption analysis of reputation-based trust management schemes of wireless sensor networks  

Science Conference Proceedings (OSTI)

Energy consumption is one of the most important parameters for evaluation of a scheme proposed for WSNs because of their resource constraint nature. Comprehensive comparative analysis of proposed reputation-based trust management schemes of WSNs from ... Keywords: reputation, sensor networks, trust evaluation, trust management

Riaz Ahmed Shaikh; Young-Koo Lee; Sungyoung Lee

2009-02-01T23:59:59.000Z

303

Anchor shot detection with diverse style backgrounds based on spatial-temporal slice analysis  

Science Conference Proceedings (OSTI)

Anchor shot detection is a challenging and important task for news video analysis. This paper has put forward a novel anchor shot detection algorithm for the situations with dynamic studio background and multiple anchorpersons based on spatio-temporal ... Keywords: anchor shot detection, dynamic background, multiple anchorpersons, sequential clustering, spatio-temporal slice

Fuguang Zheng; Shijin Li; Hao Wu; Jun Feng

2010-01-01T23:59:59.000Z

304

Implementing automatic spot addressing and contour based segmentation in microarray image analysis  

Science Conference Proceedings (OSTI)

DNA microarrays have become a widely used technique by geneticists to diagnose or treat diseases through gene expression. The process of analysis gene expression with DNA microarrays is based on the hybridization of a tissue's DNA sequence into a substrate ... Keywords: DNA microarrays, contour segmentation, edge detection, image processing, segmentation, spot addressing

Alexandra Oliveros; Miguel Sotaquirá

2008-08-01T23:59:59.000Z

305

A Gauge-Based Analysis of Daily Precipitation over East Asia  

Science Conference Proceedings (OSTI)

A new gauge-based analysis of daily precipitation has been constructed on a 0.5° latitude–longitude grid over East Asia (5°–60°N, 65°–155°E) for a 26-yr period from 1978 to 2003 using gauge observations at over 2200 stations collected from ...

Pingping Xie; Mingyue Chen; Song Yang; Akiyo Yatagai; Tadahiro Hayasaka; Yoshihiro Fukushima; Changming Liu

2007-06-01T23:59:59.000Z

306

Steady State Performance Analysis of a VSC-Based HVDC Converter Stations Using PSCAD/EMTDC  

Science Conference Proceedings (OSTI)

This paper presents a steady state performance analysis carried out to study the behavior of a two VSC-based operating as a single-input single output HVDC link. The digital model of the HVDC link has been implemented and evaluated using PSCAD/EMTDC©. ... Keywords: Voltage source converter, HVDC Stations, pulse width modulation, harmonic spectra

Eduardo Vásquez-Mortera; Edgar L. Moreno-Goytia

2008-09-01T23:59:59.000Z

307

An efficient FE model based on combined theory for the analysis of soft core sandwich plate  

Science Conference Proceedings (OSTI)

An efficient C0 continuous finite element (FE) model is developed based on combined theory (refine higher order shear deformation theory (RHSDT) and least square error (LSE) method) for the static analysis of soft core sandwich plate. In this ... Keywords: Composites, Finite element, Laminate, Plates, Sandwich materials

Ravi Prakash Khandelwal; Anupam Chakrabarti; Pradeep Bhargava

2013-05-01T23:59:59.000Z

308

New Equipment of Distinguishing Rock from Coal Based on Statistical Analysis of Fast Fourier Transform  

Science Conference Proceedings (OSTI)

A new equipment of distinguishing rock from coal based on statistical analysis of Fast Fourier Transform (FFT) is invented which can be used in the mechanized caving coal locales. First, eight groups of sound signals which had been measured during caving ... Keywords: Threshold of Distinguishing Rock from Coal, Fast Fourier Transform (FFT), Frequency Energy Variance, Frequency Energy Ratio

Gu Tao; Li Xu

2009-05-01T23:59:59.000Z

309

Adoption of energy-efficiency measures in SMEs An empirical analysis based on energy audit data  

E-Print Network (OSTI)

Adoption of energy-efficiency measures in SMEs ­ An empirical analysis based on energy audit data;Abstract This paper empiricallyinvestigates the factors driving the adoption of energy-efficiency measures on barriers to energy efficiency in SMEs. More specifically, high investment costs, which are captured

Paris-Sud XI, Université de

310

Experimental Analysis of Task-based Energy Consumption in Cloud Computing Systems  

E-Print Network (OSTI)

this model, we have conducted extensive experiments to profile the energy consumption in cloud computingExperimental Analysis of Task-based Energy Consumption in Cloud Computing Systems Feifei Chen, John is that large cloud data centres consume large amounts of energy and produce significant carbon footprints

Schneider, Jean-Guy

311

Video analytics algorithm for detecting objects crossing lines in specific direction using blob-based analysis  

Science Conference Proceedings (OSTI)

This paper presents a video analytics algorithm for detecting event of objects crossing predetermined line-of-interest in the scene in specific direction. A fast blob-based analysis is formulated to detect the event, combined with the object detection ... Keywords: line intrusion, surveillance system, tripwire, video analytics, virtual boundary, wrong direction detection

Zulaikha Kadim; Liang kim meng; Norshuhada Samudin; Khairunnisa Mohamed Johari; Khairil Hafriza; Choong Teck Liong; Hon Hock Woon

2012-12-01T23:59:59.000Z

312

Dynamic analysis of electric arcs based on energetic and Clarke approach  

Science Conference Proceedings (OSTI)

In the present paper an innovative approach to the transient study of interrupted single- and three-phase networks is proposed. It is based on state-equations and it is independent on the mathematical model adopted to represent the electric arc. In the ... Keywords: circuit breakers, switching transients, transient analysis

Francesco Della Torre; Sonia Leva; Adriano Paolo Morando

2008-07-01T23:59:59.000Z

313

Cost-effectiveness analysis of genetic testing for familial long QT syndrome in symptomatic index cases  

E-Print Network (OSTI)

Cost-Effectiveness Analysis of Genetic Testing for FamilialJ, Russell L, Weinstein M. Cost-effectiveness in health andSakowski J: An introduction to cost- effectiveness and cost-

Phillips, Kathryn A; Ackerman, M J; Sakowski, J; Berul, C I

2005-01-01T23:59:59.000Z

314

Bayesian Change-Point Analysis of Tropical Cyclone Activity: The Central North Pacific Case  

Science Conference Proceedings (OSTI)

Bayesian analysis is applied to detect change points in the time series of annual tropical cyclone counts over the central North Pacific. Specifically, a hierarchical Bayesian approach involving three layers—data, parameter, and hypothesis—is ...

Pao-Shin Chu; Xin Zhao

2004-12-01T23:59:59.000Z

315

Regression Models for Demand Reduction based on Cluster Analysis of Load  

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

Regression Models for Demand Reduction based on Cluster Analysis of Load Regression Models for Demand Reduction based on Cluster Analysis of Load Profiles Speaker(s): Nobuyuki Yamaguchi Date: March 26, 2009 - 12:00pm Location: 90-3122 This seminar provides new regression models for demand reduction of Demand Response programs for the purpose of ex ante evaluation of the programs and screening for recruiting customer enrollment into the programs. The proposed regression models employ load sensitivity to outside air temperature and representative load pattern derived from cluster analysis of customer baseline load as explanatory variables. We examined the performance of the proposed models with respect to the validity of explanatory variables and fitness of regressions, using actual load profile data of Pacific Gas and Electric Company's commercial and industrial

316

Comparative Analysis of Agent-Based and Population-Based Modelling in Epidemics and Economics. Multi-Agent and Grid Systems Journal  

E-Print Network (OSTI)

This paper addresses comparative evaluation of population-based simulation in comparison to agent-based simulation for different numbers of agents. Population-based simulation, such as for example in the classical approaches to predator-prey modelling and modelling of epidemics, has computational advantages over agent-based modelling with large numbers of agents. Therefore the latter approaches can be considered useful only when the results are expected to deviate from the results of population-based simulation, and are considered more realistic. However, there is sometimes also a silent assumption that for larger numbers of agents, agent-based simulations approximate population-based simulations, which would indicate that agent-based simulation just can be replaced by population-based simulation. The paper evaluates such assumptions by two detailed comparative case studies: one in epidemics, and one in economical context. The former case study addresses the spread of an infectious disease over a population. The latter case study addresses the interplay between individual greed as a psychological concept and global economical concepts. It is shown that under certain conditions agent-based and population-based simulations may show similar results, but not always.

Tibor Bosse; S. Waqar Jaffry; Ghazanfar F. Siddiqui; Jan Treur

2012-01-01T23:59:59.000Z

317

Long Term World Oil Supply (A Resource Base/Production Path Analysis)  

Gasoline and Diesel Fuel Update (EIA)

Long Term World Oil Supply Long Term World Oil Supply (A Resource Base/Production Path Analysis) 07/28/2000 Click here to start Table of Contents Long Term World Oil Supply (A Resource Base/Production Path Analysis) Executive Summary Executive Summary (Continued) Executive Summary (Continued) Overview The Year of Peak Production..When will worldwide conventional oil production peak?... Lower 48 Crude Oil Reserves & Production 1945-2000 Texas Oil and Condensate Production, and Texas First Purchase Price (FPP), 1980-1999 Published Estimates of World Oil Ultimate Recovery Different Interpretations of a Hypothetical 6,000 Billion Barrel World Original Oil-in-Place Resource Base Campbell-Laherrère World Oil Production Estimates, 1930-2050 Laherrere’s Oil Production Forecast, 1930-2150

318

Microsoft Word - Report on Prevention Analysis Trial Method and Case Study Improvments - April 2012.docx  

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

1-23479 1-23479 Revision 1 Risk Informed Safety Margin Characterization Case Study: Selection of Electrical Equipment To Be Subjected to Environmental Qualification M3LW-12IN0702012 "Expansion of Trial Method and Case Study and Improvements" D. Blanchard (AREI) R. Youngblood (INL) April 2012 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. References herein to any specific commercial product,

319

Appendix E: Other NEMS-MP results for the base case and scenarios.  

DOE Green Energy (OSTI)

The NEMS-MP model generates numerous results for each run of a scenario. (This model is the integrated National Energy Modeling System [NEMS] version used for the Multi-Path Transportation Futures Study [MP].) This appendix examines additional findings beyond the primary results reported in the Multi-Path Transportation Futures Study: Vehicle Characterization and Scenario Analyses (Reference 1). These additional results are provided in order to help further illuminate some of the primary results. Specifically discussed in this appendix are: (1) Energy use results for light vehicles (LVs), including details about the underlying total vehicle miles traveled (VMT), the average vehicle fuel economy, and the volumes of the different fuels used; (2) Resource fuels and their use in the production of ethanol, hydrogen (H{sub 2}), and electricity; (3) Ethanol use in the scenarios (i.e., the ethanol consumption in E85 vs. other blends, the percent of travel by flex fuel vehicles on E85, etc.); (4) Relative availability of E85 and H2 stations; (5) Fuel prices; (6) Vehicle prices; and (7) Consumer savings. These results are discussed as follows: (1) The three scenarios (Mixed, (P)HEV & Ethanol, and H2 Success) when assuming vehicle prices developed through literature review; (2) The three scenarios with vehicle prices that incorporate the achievement of the U.S. Department of Energy (DOE) program vehicle cost goals; (3) The three scenarios with 'literature review' vehicle prices, plus vehicle subsidies; and (4) The three scenarios with 'program goals' vehicle prices, plus vehicle subsidies. The four versions or cases of each scenario are referred to as: Literature Review No Subsidies, Program Goals No Subsidies, Literature Review with Subsidies, and Program Goals with Subsidies. Two additional points must be made here. First, none of the results presented for LVs in this section include Class 2B trucks. Results for this class are included occasionally in Reference 1. They represent a small, though noticeable, segment of the 'LV plus 2B' market (e.g., a little more than 3% of today's energy use in that market). We generally do not include them in this discussion, simply because it requires additional effort to combine the NEMS-MP results for them with the results for the other LVs. (Where there is an exception, we will indicate so.) Second, where reference is made to E85, the ethanol content is actually 74%. The Energy Information Administration (EIA) assumes that, to address cold-starting issues, the percent of ethanol in E85 will vary seasonally. The EIA uses an annual average ethanol content of 74% in its forecasts. That assumption is maintained in the NEMS-MP scenario runs.

Plotkin, S. E.; Singh, M. K.; Energy Systems

2009-12-03T23:59:59.000Z

320

Ground-Based Remote Sensing of Cloud Particle Sizes during the 26 November 1991 FIRE II Cirrus Case: Comparisons with In Situ Data  

Science Conference Proceedings (OSTI)

The paper presents the results of retrieving characteristic particle sizes for the November 26 1991 FIRE II case using two methods that utilize ground-based remotes sensors. The size information for the complete vertical depth of the cloud was ...

S. Y. Matrosov; A. J. Heymsfield; J. M. Intrieri; B. W. Orr; J. B. Snider

1995-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Research | Children’s Health Substance Flow Analysis: A Case Study of Fluoride Exposure through Food and Beverages in Young Children Living in Ethiopia  

E-Print Network (OSTI)

Con t e x t: Dental and skeletal fluorosis is endemic in the Ethiopian Rift Valley. Children are especially vulnerable to excessive fluoride intake because their permanent teeth are still being formed. Strategies to reduce the total fluoride intake by children are thus warranted. Case presentation: By combining the results of field studies in Ethiopia, the relevant pathways for fluoride intake have been identified in 28 children 2–5 years of age living in two villages on the Wonji Shoa Sugar Estate in the Ethiopian Rift Valley. The focus of the present study was to simulate the fluoride intake of the children using the methods of material flow analysis (MFA) and substance flow analysis. Discussion: With a model based on MFA, we quantified the potential reduction in total fluoride intake given different scenarios—for example, by reducing the fluoride intake from drinking water and cooking water. The results show clearly that only by removing fluoride completely from both drinking and cooking water does the probability of remaining below the daily tolerable upper intake level exceed 50%. Both prepared food and food ingredients must be taken into consideration when assessing the total fluoride intake by children living in high-fluoride areas. Relevance: This knowledge will help health personnel, the government, and the food authorities to give scientifically based advice on strategies for reducing the total fluoride intake by children living in high-fluoride areas in the Ethiopian Rift Valley.

Marian Kjellevold Malde; Ruth Scheidegger; Kåre Julshamn; Hans-peter Bader

2010-01-01T23:59:59.000Z

322

Early growth technology analysis : case studies in solar energy and geothermal energy  

E-Print Network (OSTI)

Public and private organizations try to forecast the future of technological developments and allocate funds accordingly. Based on our interviews with experts from MIT's Entrepreneurship Center, Sloan School of Management, ...

Kaya Firat, Ayse

2010-01-01T23:59:59.000Z

323

Handbook of methods for risk-based analysis of Technical Specification requirements  

SciTech Connect

Technical Specifications (TS) requirements for nuclear power plants define the Limiting Conditions for Operation (LCOs) and Surveillance Requirements (SRs) to assure safety during operation. In general, these requirements were based on deterministic analysis and engineering judgments. Experiences with plant operation indicate that some elements of the requirements are unnecessarily restrictive, while others may not be conducive to safety. Improvements in these requirements are facilitated by the availability of plant specific Probabilistic Safety Assessments (PSAs). The use of risk and reliability-based methods to improve TS requirements has gained wide interest because these methods can: quantitatively evaluate the risk impact and justify changes based on objective risk arguments. Provide a defensible basis for these requirements for regulatory applications. The United States Nuclear Regulatory Commission (USNRC) Office of Research is sponsoring research to develop systematic risk-based methods to improve various aspects of TS requirements. The handbook of methods, which is being prepared, summarizes such risk-based methods. The scope of the handbook includes reliability and risk-based methods for evaluating allowed outage times (AOTs), action statements requiring shutdown where shutdown risk may be substantial, surveillance test intervals (STIs), defenses against common-cause failures, managing plant configurations, and scheduling maintenances. For each topic, the handbook summarizes methods of analysis and data needs, outlines the insights to be gained, lists additional references, and presents examples of evaluations.

Samanta, P.K.; Vesely, W.E.

1993-12-31T23:59:59.000Z

324

EVENT TREE ANALYSIS AT THE SAVANNAH RIVER SITE: A CASE HISTORY  

Science Conference Proceedings (OSTI)

At the Savannah River Site (SRS), a Department of Energy (DOE) installation in west-central South Carolina there is a unique geologic stratum that exists at depth that has the potential to cause surface settlement resulting from a seismic event. In the past the particular stratum in question has been remediated via pressure grouting, however the benefits of remediation have always been debatable. Recently the SRS has attempted to frame the issue in terms of risk via an event tree or logic tree analysis. This paper describes that analysis, including the input data required.

Williams, R

2009-05-25T23:59:59.000Z

325

An assessment of the utility of GIS-based analysis to support the coordination of humanitarian assistance.  

E-Print Network (OSTI)

?? This dissertation investigated if Geographic Information Systems (GIS)-based analysis can have a decisive influence upon the coordination of international humanitarian assistance. Utility was assessed… (more)

Verjee, Firoz

2008-01-01T23:59:59.000Z

326

Coherence-based multivariate analysis of high frequency stock market values  

E-Print Network (OSTI)

The paper tackles the problem of deriving a topological structure among stock prices from high frequency historical values. Similar studies using low frequency data have already provided valuable insights. However, in those cases data need to be collected for a longer period and then they have to be detrended. An effective technique based on averaging a metric function on short subperiods of the observation horizon is suggested. Since a standard correlation-based metric is not capable of catching dependencies at different time instants, it is not expected to perform the best when dealing with high frequency data. Hence, the choice of a more suitable metric is discussed. In particular, a coherence-based metric is proposed, for it is able to detect any possible linear relation between two times series, even at different time instants. The averaging technique is employed to analyze a set of 100 high volume stocks of the New York Stock Exchange, observed during March 2008.

Donatello Materassi; Giacomo Innocenti

2008-05-18T23:59:59.000Z

327

Microsoft PowerPoint - Microbial Genome and Metagenome Analysis Case Study (NERSC Workshop - May 7-8, 2009).ppt [Compatibility  

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

Genome & Genome & Metagenome Analysis: Computational Challenges Natalia N. Ivanova * Nikos C. Kyrpides * Victor M. Markowitz ** * Genome Biology Program, Joint Genome Institute ** Lawrence Berkeley National Lab Microbial genome & metagenome analysis General aims Understand microbial life Apply to agriculture, bioremediation, biofuels, human health Specific aims include Specific aims include Predict biochemistry & physiology of organisms based on genome sequence Explain known biochemical & physiological properties Metabolic reconstruction * Ivanova & Lykidis (2009) Metabolic reconstruction. Encyclopedia of Microbiology, Elsevier: 607-621. 2 Genome sequence data size Now ~1,400 microbial genomes = 5.5 mil genes ~ 100 metagenomes samples

328

Transient Analysis of 220kV Distribution Substation: A Case Study  

Science Conference Proceedings (OSTI)

Power system has dynamic behavior as it faces various disturbances like sudden change in load, sudden change in generation and various faults. During transients parameters of power system has been changed and it is very necessary to measure and check ... Keywords: Transient stability analysis, Runge-Kutta method, Transient, Power system

K. B. Porate; Shital C. Gabhane

2010-11-01T23:59:59.000Z

329

Radiation Detection Scenario Analysis Toolbox (RADSAT) Test Case Implementation Final Report  

Science Conference Proceedings (OSTI)

Final report for the project. This project was designed to demonstrate the use of the Radiation Detection Scenario Analysis Toolbox (RADSAT) radiation detection transport modeling package (developed in a previous NA-22 project) for specific radiation detection scenarios important to proliferation detection.

Shaver, Mark W.

2010-09-27T23:59:59.000Z

330

Scenario analysis using Bayesian networks: A case study in energy sector  

Science Conference Proceedings (OSTI)

This paper provides a general overview of creating scenarios for energy policies using Bayesian Network (BN) models. BN is a useful tool to analyze the complex structures, which allows observation of the current structure and basic consequences of any ... Keywords: Bayesian networks, Causal maps, Energy investments, Scenario analysis

Didem Cinar; Gulgun Kayakutlu

2010-04-01T23:59:59.000Z

331

Radiotherapy of Painful Vertebral Hemangiomas: The Single Center Retrospective Analysis of 137 Cases  

SciTech Connect

Purpose: An evaluation of dose-response relationship and an attempt to define predictive factors. Methods and Materials: A total of 137 cases of painful vertebral hemangioma irradiations (101 patients). Fraction dose (fd) varied from 2 to 15 Gy (123 fractionated and 14 radiosurgical treatments), and total dose (TD) from 8 to 30 Gy (111 cases irradiated with fd of 2 GY to TD of 24 Gy). We evaluated pain relief, changes in analgesic requirements, and reossification. Results: Means of pain relief 1, 6, 12, and 18 months after radiotherapy (defined as a decrease of primary pain level expressed in percent) were 60.5%, 65.4%, 68.3%, and 78.4%, respectively. Proportion of patients with no need for analgesics and patients using tramadol were 39%, 40%, 44%, 57%, and 20%, 17%, 22%, and 11% in these times. The proportion of patients experiencing complete/partial pain relief changed from 36/48% 1 month, to 64/22% 1.5 years after radiotherapy. No impact of radiotherapy on reossification was found. The positive impact of fd and TD increase for analgesics uptake reduction and pain relief was found. An increase of the fd by 1 Gy results in 27% chance of analgesics uptake reduction and 3.8% reduction of pain, whereas 14% analgesics uptake reduction and 2.2% of pain reduction in case of the TD. The predictive factors improving results were found: female gender, older age, better performance states (the chance of the lower analgesic treatment decreases over 2.5 times in comparison to the higher Zubrod degree), bigger Hb concentration, shorter symptoms duration and lower analgesics uptake before radiotherapy. Conclusions: The obtained data support the efficacy of radiotherapy in improving pain secondary to vertebral hemangioma, with the degree of pain amelioration being related to increasing fd and TD. The positive predictive factors were defined: female gender, older age, better performance status, increased Hb concentration, shorter symptoms duration, and lower analgesics uptake before radiotherapy.

Miszczyk, Leszek, E-mail: leszek@io.gliwice.pl [Radiotherapy Department, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice (Poland); Tukiendorf, Andrzej [Cardiff Research Consortium, The MediCentre Eastgate House, Cardiff, South Glamorgan (United Kingdom)

2012-02-01T23:59:59.000Z

332

Comparative analysis of energy data bases for the industrial and commercial sectors  

SciTech Connect

Energy data bases for the industrial and commercial sectors were analyzed to determine how valuable this data might be for policy analysis. The approach is the same for both end-use sectors: first a descrption or overview of relevant data bases identifies the available data; the coverage and methods used to generate the data are then explained; the data are then characterized and examples are provided for the major data sets under consideration. A final step assesses the data bases under consideration and draws conclusions. There are a variety of data bases considered for each of the end-use sectors included in this report. Data bases for the industrial sector include the National Energy Accounts, process-derived data bases such as the Drexel data base and data obtained from industry trade associations. For the commercial sector, three types of data bases are analyzed: the Nonresidential Building Energy Consumption Surveys, Dodge Construction Data and the Building Owners and Manager's Association Experience Exchange Report.

Roop, J.M.; Belzer, D.B.; Bohn, A.A.

1986-12-01T23:59:59.000Z

333

Analysis of a Window-Based Flow Control Mechanism based on TCP Vegas in Heterogeneous Network Environment  

E-Print Network (OSTI)

Another version of TCP called TCP Vegas has been proposed and studied in the literature. It can achieve better performance than the current TCP Reno. In our previous studies, steady-state behavior of a windowbased flow control mechanism based on TCP Vegas has been analyzed for a simple network topology. In this paper, we extend our analysis to a generic network topology where multiple bottleneck links exist. We first derive equi- librium values of a window size of a TCP connection and the number of packets waiting in a router's buffer in steady state. We also derive throughput of each TCP connection in steady state, and investigate the effect of control parameters of TCP Vegas on fairness among TCP connections. We then present several numerical examples, showing how control parameters of TCP Vegas should be configured for achieving both stability and better transient performance.

Keiichi Takagaki; Hiroyuki Ohsaki; Masayuki Murata

2001-01-01T23:59:59.000Z

334

Performance-Based Technology Selection Filter description report. INEL Buried Waste Integrated Demonstration System Analysis project  

SciTech Connect

A formal methodology has been developed for identifying technology gaps and assessing innovative or postulated technologies for inclusion in proposed Buried Waste Integrated Demonstration (BWID) remediation systems. Called the Performance-Based Technology Selection Filter, the methodology provides a formalized selection process where technologies and systems are rated and assessments made based on performance measures, and regulatory and technical requirements. The results are auditable, and can be validated with field data. This analysis methodology will be applied to the remedial action of transuranic contaminated waste pits and trenches buried at the Idaho National Engineering Laboratory (INEL).

O`Brien, M.C.; Morrison, J.L.; Morneau, R.A.; Rudin, M.J.; Richardson, J.G.

1992-05-01T23:59:59.000Z

335

Constructing a Temporal Relation Tagged Corpus of Chinese based on Dependency Structure Analysis  

E-Print Network (OSTI)

This paper describes an annotation guideline for a temporal relation-tagged corpus of Chinese. Our goal is construction of corpora to be used for a corpus-based analysis of temporal relations among events. Since annotating all combinations of events is inefficient, we examine the use of dependency structure to efficiently recognize temporal relations. We annotate a part of Treebank based on our guidelines. Then, we survey a small tagged data set to investigate the coverage of our method. While we find that use of dependency structure drastically reduces manual effort in constructing a tagged corpus with temporal relations, the coverage of the methods achieves about 63%.

Yuchang Cheng; Masayuki Asahara; Yuji Matsumoto

2007-01-01T23:59:59.000Z

336

Furnace and Heat Recovery Area Design and Analysis for Conceptual Design of Oxygen-Based PC Boiler  

Science Conference Proceedings (OSTI)

The objective of the furnace and heat recovery area design and analysis task of the Conceptual Design of Oxygen-Based PC Boiler study is to optimize the location and design of the furnace, burners, over-fire gas ports, and internal radiant surfaces. The furnace and heat recovery area were designed and analyzed using the FW-FIRE and HEATEX computer programs. The furnace is designed with opposed wall-firing burners and over-fire air ports. Water is circulated in the furnace by natural circulation to the waterwalls and divisional wall panels. Compared to the air-fired furnace, the oxygen-fired furnace requires only 65% of the surface area and 45% of the volume. Two oxygen-fired designs were simulated: (1) without over-fire air and (2) with 20% over-fire air. The maximum wall heat flux in the oxygen-fired furnace is more than double that of the air-fired furnace due to the higher flame temperature and higher H{sub 2}O and CO{sub 2} concentrations. The coal burnout for the oxygen-fired case is 100% due to a 500 F higher furnace temperature and higher concentration of O{sub 2}. Because of the higher furnace wall temperature of the oxygen-fired case compared to the air-fired case, furnace water wall material was upgraded from carbon steel to T91. The total heat transfer surface required in the oxygen-fired heat recovery area (HRA) is 25% less than the air-fired HRA due to more heat being absorbed in the oxygen-fired furnace and the greater molecular weight of the oxygen-fired flue gas. The HRA tube materials and wall thickness are practically the same for the air-fired and oxygen-fired design since the flue gas and water/steam temperature profiles encountered by the heat transfer banks are very similar.

Andrew Seltzer

2005-01-01T23:59:59.000Z

337

Specification and Analysis of SOC Systems Using COWS: A Finance Case Study  

Science Conference Proceedings (OSTI)

Service-oriented computing, an emerging paradigm for distributed computing based on the use of services, is calling for the development of tools and techniques to build safe and trustworthy systems, and to analyse their behaviour. Therefore many researchers ... Keywords: Service-oriented computing, logics and model checking, process calculi, service orchestration

Federico Banti; Alessandro Lapadula; Rosario Pugliese; Francesco Tiezzi

2009-04-01T23:59:59.000Z

338

Analysis of QoS Provisioning in Cognitive Radio Networks: A Case Study  

Science Conference Proceedings (OSTI)

Dynamic Spectrum Access (DSA) is a promising solution to the problem of spectrum inefficiency. Based on Cognitive Radio (CR) technology, DSA allows a CR device to opportunistically access unused or less crowded spectrum while ensuring protection for ... Keywords: Cognitive radio, Dynamic spectrum access, QoS provisioning, Spectrum sensing

Ashwini Kumar; Jianfeng Wang; Kiran Challapali; Kang G. Shin

2011-03-01T23:59:59.000Z

339

Scenario analysis for reverse logistics implementation case study of the Palm Oil supply chain  

Science Conference Proceedings (OSTI)

This work shows the potential reverse logistic flows that can be implemented in the Palm Oil supply chain, based in the waste management and the recovery flows that are obtained trough the agents that made part in the chain. In this context, the study ...

Edgar Alfonso; Diego Ferrucho; Angel Roldán; Mario Vargas; Freddy González

2009-12-01T23:59:59.000Z

340

Energy-water analysis of the 10-year WECC transmission planning study cases.  

DOE Green Energy (OSTI)

In 2011 the Department of Energy's Office of Electricity embarked on a comprehensive program to assist our Nation's three primary electric interconnections with long term transmission planning. Given the growing concern over water resources in the western U.S. the Western Electricity Coordinating Council (WECC) requested assistance with integrating water resource considerations into their broader electric transmission planning. The result is a project with three overarching objectives: (1) Develop an integrated Energy-Water Decision Support System (DSS) that will enable planners in the Western Interconnection to analyze the potential implications of water stress for transmission and resource planning. (2) Pursue the formulation and development of the Energy-Water DSS through a strongly collaborative process between the Western Electricity Coordinating Council (WECC), Western Governors Association (WGA), the Western States Water Council (WSWC) and their associated stakeholder teams. (3) Exercise the Energy-Water DSS to investigate water stress implications of the transmission planning scenarios put forward by WECC, WGA, and WSWC. The foundation for the Energy-Water DSS is Sandia National Laboratories Energy-Power-Water Simulation (EPWSim) model (Tidwell et al. 2009). The modeling framework targets the shared needs of energy and water producers, resource managers, regulators, and decision makers at the federal, state and local levels. This framework provides an interactive environment to explore trade-offs, and 'best' alternatives among a broad list of energy/water options and objectives. The decision support framework is formulated in a modular architecture, facilitating tailored analyses over different geographical regions and scales (e.g., state, county, watershed, interconnection). An interactive interface allows direct control of the model and access to real-time results displayed as charts, graphs and maps. The framework currently supports modules for calculating water withdrawal and consumption for current and planned electric power generation; projected water demand from competing use sectors; and, surface and groundwater availability. WECC's long range planning is organized according to two target planning horizons, a 10-year and a 20-year. This study supports WECC in the 10-year planning endeavor. In this case the water implications associated with four of WECC's alternative future study cases (described below) are calculated and reported. In future phases of planning we will work with WECC to craft study cases that aim to reduce the thermoelectric footprint of the interconnection and/or limit production in the most water stressed regions of the West.

Tidwell, Vincent Carroll; Passell, Howard David; Castillo, Cesar; Moreland, Barbara

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis  

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

Renewable Energy Technical Renewable Energy Technical Potentials: A GIS-Based Analysis Anthony Lopez, Billy Roberts, Donna Heimiller, Nate Blair, and Gian Porro Technical Report NREL/TP-6A20-51946 July 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 U.S. Renewable Energy Technical Potentials: A GIS- Based Analysis Anthony Lopez, Billy Roberts, Donna Heimiller, Nate Blair, and Gian Porro Prepared under Task Nos. SA10.1012 and SA10.20A4 Technical Report NREL/TP-6A20-51946

342

DOE Hydrogen Analysis Repository: H2A Case Study: Future Central Natural  

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

Natural Gas Reforming without Sequestration Natural Gas Reforming without Sequestration Project Summary Full Title: H2A Case Study: Longer-Term (2020-2030) Hydrogen from Natural Gas without CO2 Capture and Sequestration Project ID: 240 Principal Investigator: Darlene Steward Keywords: Hydrogen production; steam methane reforming; natural gas Purpose Steam reforming of hydrocarbons continues to be the most efficient, economical, and widely used process for production of hydrogen and hydrogen/carbon monoxide mixtures. The process involves a catalytic conversion of the hydrocarbon and steam to hydrogen and carbon oxides. Since the process works only with light hydrocarbons that can be vaporized completely without carbon formation, the feedstocks used range from methane (natural gas) to naphtha to No. 2 fuel oil.

343

Waste-to-wheel analysis of anaerobic-digestion-based renewable natural gas pathways with the GREET model.  

SciTech Connect

In 2009, manure management accounted for 2,356 Gg or 107 billion standard cubic ft of methane (CH{sub 4}) emissions in the United States, equivalent to 0.5% of U.S. natural gas (NG) consumption. Owing to the high global warming potential of methane, capturing and utilizing this methane source could reduce greenhouse gas (GHG) emissions. The extent of that reduction depends on several factors - most notably, how much of this manure-based methane can be captured, how much GHG is produced in the course of converting it to vehicular fuel, and how much GHG was produced by the fossil fuel it might displace. A life-cycle analysis was conducted to quantify these factors and, in so doing, assess the impact of converting methane from animal manure into renewable NG (RNG) and utilizing the gas in vehicles. Several manure-based RNG pathways were characterized in the GREET (Greenhouse gases, Regulated Emissions, and Energy use in Transportation) model, and their fuel-cycle energy use and GHG emissions were compared to petroleum-based pathways as well as to conventional fossil NG pathways. Results show that despite increased total energy use, both fossil fuel use and GHG emissions decline for most RNG pathways as compared with fossil NG and petroleum. However, GHG emissions for RNG pathways are highly dependent on the specifics of the reference case, as well as on the process energy emissions and methane conversion factors assumed for the RNG pathways. The most critical factors are the share of flared controllable CH{sub 4} and the quantity of CH{sub 4} lost during NG extraction in the reference case, the magnitude of N{sub 2}O lost in the anaerobic digestion (AD) process and in AD residue, and the amount of carbon sequestered in AD residue. In many cases, data for these parameters are limited and uncertain. Therefore, more research is needed to gain a better understanding of the range and magnitude of environmental benefits from converting animal manure to RNG via AD.

Han, J.; Mintz, M.; Wang, M. (Energy Systems)

2011-12-14T23:59:59.000Z

344

Fuel Analysis and Licensing Code: FALCON MOD01: Volume 1: Theoretical and Numerical Bases  

Science Conference Proceedings (OSTI)

FALCON Mod01 software and accompanying three-volume documentation are being released as the state-of-the-art light water reactor (LWR) fuel performance analysis and modeling code validated to high burn-up. Based on a robust finite element numerical structure, FALCON is capable of analyzing both steady state and transient fuel behavior with a seamless transition between the two modes. FALCON is the culmination of focused developmental activities since 1996 (with its origins in EPRI's two historic fuel per...

2004-12-22T23:59:59.000Z

345

An Integrated Analysis of a NERVA Based Nuclear Thermal Propulsion System  

Science Conference Proceedings (OSTI)

This paper presents results and conclusions derived from an integrated analysis of a NERVA based Nuclear Thermal Propulsion (NTP) system. The NTP system is sized to generate a thrust of 70,000 N (15,000 lbf), and have a specific impulse (Isp) of 860 s. This implies a reactor that operates at 350 MWth and has a mixed mean propellant outlet temperature of 2760 K. The integrated analysis will require that self-consistent neutronic/thermal-hydraulic/stress analyses be carried out. The major code packages used in this analysis are MCNP, RELAP, and ANSYS. Results from this analysis indicate that nuclear data will have to be re-generated to cover the wide temperature range, zone loading will be necessary to avoid entering the liquidus region for the fuel, and the effectiveness of the ZrC insulator will have implications for bi-modal applications. These results suggest a path forward in the development of a viable NTP system based on a NERVA reactor should initially concentrate on fuel and structural materials and associated coating development. A series of safety related criticality determinations were carried out addressing water immersion following a launch incident.

Ludewig, Hans; Cheng, L.-Y.; Ecker, Lynne; Todosow, Michael [Energy Sciences and Technology Department, Brookhaven National Laboratory, Upton, NY 11973 (United States)

2006-01-20T23:59:59.000Z

346

An analysis of uranium dispersal and health effects using a Gulf War case study.  

SciTech Connect

The study described in this report used mathematical modeling to estimate health risks from exposure to depleted uranium (DU) during the 1991 Gulf War for both U.S. troops and nearby Iraqi civilians. The analysis found that the risks of DU-induced leukemia or birth defects are far too small to result in an observable increase in these health effects among exposed veterans or Iraqi civilians. Only a few veterans in vehicles accidentally struck by U.S. DU munitions are predicted to have inhaled sufficient quantities of DU particulate to incur any significant health risk (i.e., the possibility of temporary kidney damage from the chemical toxicity of uranium and about a 1% chance of fatal lung cancer). The health risk to all downwind civilians is predicted to be extremely small. Recommendations for monitoring are made for certain exposed groups. Although the study found fairly large calculational uncertainties, the models developed and used are generally valid. The analysis was also used to assess potential uranium health hazards for workers in the weapons complex. No illnesses are projected for uranium workers following standard guidelines; nonetheless, some research suggests that more conservative guidelines should be considered.

Marshall, Albert Christian

2005-07-01T23:59:59.000Z

347

Analysis of silicon carbide based semiconductor power devices and their application in power factor correction  

E-Print Network (OSTI)

Recent technological advances have allowed silicon (Si) semiconductor technology to approach the theoretical limits of the Si material; however, power device requirements for many applications are at a stage that the present Si-based power devices cannot handle. The requirements include higher blocking voltages, switching frequencies, efficiency, and reliability. Material technologies superior to Si are needed for future power device developments. Silicon Carbide (SiC) based semiconductor devices offer one such alternative. SiC based power devices exhibit superior properties such as very low switching losses, fast switching behavior, improved reliability and high temperature operation capabilities. Power factor correction stage of power supplies is identified as an area where application of these devices would prove advantageous. In this thesis a high performance, high efficiency, SiC based power factor correction stage is discussed. The proposed topology takes advantage of the superior properties of SiC semiconductor based devices and the reduced number of devices that the dual boost power factor correction topology requires to achieve high efficiency, small size and better performance at high temperature. In addition to this analysis of SiC based power devices is carried out to study their characteristics and performance.

Durrani, Yamin Qaisar

2005-08-01T23:59:59.000Z

348

Preliminary Analysis and Case Study of Transmission Constraints and Wind Energy in the West: Preprint  

DOE Green Energy (OSTI)

Wind developers typically need long-term transmission service to finance their projects; however, most of the capacity on several key paths is reserved by existing firm contracts. Because non-firm contracts are only offered for periods up to 1 year, obtaining financing for the wind project is generally not possible when firm capacity is unavailable. However, sufficient capacity may exist on the constrained paths for new wind projects that can risk curtailment for a small number of hours of the year. This paper presents the results of a study sponsored by the National Renewable Energy Laboratory (NREL), a work group participant in the Rocky Mountain Area Transmission Study (RMATS). Using recent historical power flow data, case studies were conducted on the constrained paths between Wyoming-Colorado (TOT3) and Montana-Northwest, coinciding with areas of exceptional wind resources. The potential curtailment frequency for hypothetical 100-MW and 500-MW wind plants was calculated using hourly wind data. The results from the study indicate that sufficient potential exists for innovative transmission products that can help bring more wind to load centers and increase the efficiency of the existing transmission network.

Milligan, M.; Berger, D. P.

2005-05-01T23:59:59.000Z

349

Diagnosis of the Low-Level Jet using a sounding analysis scheme and the ETA model, a case study  

E-Print Network (OSTI)

The LLJ transports moisture northward from the Gulf of Mexico into the Great Plains. Proper detection of the LLJ is important in aviation and forecasting. Standard atmospheric charts are usually insufficient in properly depicting the structure and intensity of the LLJ. This limitation arises because the LLJ climbs in altitude as it flows northward. A sounding analysis scheme is presented as an alternative to currently existing LLJ detection methods. The intensity and aerial coverage of the LLJ were studied using this analysis scheme during a case study from May 1995. The data set used consisted of 80-km Eta model output. When compared to other methods, the developed analysis scheme showed more LLJ detail and structure. The LLJ appeared with multiple cores as opposed to one long and continuous core, as typically depicted at the 850-mb level. This fits in with current research that shows the existence of multiple LLJ cores caused by different factors, such as synoptic influences, orography, and a strong low-level pressure gradient. The method developed in this research is proposed as an alternate method for LLJ detection.

Wigginton, Scott Barrett

2000-01-01T23:59:59.000Z

350

IAEA CRP on HTGR Uncertainty Analysis: Benchmark Definition and Test Cases  

SciTech Connect

Uncertainty and sensitivity studies are essential elements of the reactor simulation code verification and validation process. Although several international uncertainty quantification activities have been launched in recent years in the LWR, BWR and VVER domains (e.g. the OECD/NEA BEMUSE program [1], from which the current OECD/NEA LWR Uncertainty Analysis in Modelling (UAM) benchmark [2] effort was derived), the systematic propagation of uncertainties in cross-section, manufacturing and model parameters for High Temperature Reactor (HTGR) designs has not been attempted yet. This paper summarises the scope, objectives and exercise definitions of the IAEA Coordinated Research Project (CRP) on HTGR UAM [3]. Note that no results will be included here, as the HTGR UAM benchmark was only launched formally in April 2012, and the specification is currently still under development.

Gerhard Strydom; Frederik Reitsma; Hans Gougar; Bismark Tyobeka; Kostadin Ivanov

2012-11-01T23:59:59.000Z

351

Distributed energy resources in practice: A case study analysis and validation of LBNL's customer adoption model  

SciTech Connect

This report describes a Berkeley Lab effort to model the economics and operation of small-scale (<500 kW) on-site electricity generators based on real-world installations at several example customer sites. This work builds upon the previous development of the Distributed Energy Resource Customer Adoption Model (DER-CAM), a tool designed to find the optimal combination of installed equipment, and idealized operating schedule, that would minimize the site's energy bills, given performance and cost data on available DER technologies, utility tariffs, and site electrical and thermal loads over a historic test period, usually a recent year. This study offered the first opportunity to apply DER-CAM in a real-world setting and evaluate its modeling results. DER-CAM has three possible applications: first, it can be used to guide choices of equipment at specific sites, or provide general solutions for example sites and propose good choices for sites with similar circumstances; second, it can additionally provide the basis for the operations of installed on-site generation; and third, it can be used to assess the market potential of technologies by anticipating which kinds of customers might find various technologies attractive. A list of approximately 90 DER candidate sites was compiled and each site's DER characteristics and their willingness to volunteer information was assessed, producing detailed information on about 15 sites of which five sites were analyzed in depth. The five sites were not intended to provide a random sample, rather they were chosen to provide some diversity of business activity, geography, and technology. More importantly, they were chosen in the hope of finding examples of true business decisions made based on somewhat sophisticated analyses, and pilot or demonstration projects were avoided. Information on the benefits and pitfalls of implementing a DER system was also presented from an additional ten sites including agriculture, education, health care, airport, and manufacturing facilities.

Bailey, Owen; Creighton, Charles; Firestone, Ryan; Marnay, Chris; Stadler, Michael

2003-02-01T23:59:59.000Z

352

An econometric analysis of regional differences in household waste collection: The case of plastic packaging waste in Sweden  

Science Conference Proceedings (OSTI)

The Swedish producer responsibility ordinance mandates producers to collect and recycle packaging materials. This paper investigates the main determinants of collection rates of household plastic packaging waste in Swedish municipalities. This is done by the use of a regression analysis based on cross-sectional data for 252 Swedish municipalities. The results suggest that local policies, geographic/demographic variables, socio-economic factors and environmental preferences all help explain inter-municipality collection rates. For instance, the collection rate appears to be positively affected by increases in the unemployment rate, the share of private houses, and the presence of immigrants (unless newly arrived) in the municipality. The impacts of distance to recycling industry, urbanization rate and population density on collection outcomes turn out, though, to be both statistically and economically insignificant. A reasonable explanation for this is that the monetary compensation from the material companies to the collection entrepreneurs vary depending on region and is typically higher in high-cost regions. This implies that the plastic packaging collection in Sweden may be cost ineffective. Finally, the analysis also shows that municipalities that employ weight-based waste management fees generally experience higher collection rates than those municipalities in which flat and/or volume-based fees are used.

Hage, Olle [Economics Unit, Lulea University of Technology, SE 971 87, Lulea (Sweden)], E-mail: olle.hage@ltu.se; Soederholm, Patrik [Economics Unit, Lulea University of Technology, SE 971 87, Lulea (Sweden)

2008-07-01T23:59:59.000Z

353

Case studies in research: Understanding the impact of business cases on IT investment decisions: An analysis of municipal e-government projects  

Science Conference Proceedings (OSTI)

This study synthesizes the extant literature to derive an integrative developmental framework for IT business cases that can be applied to diagnose the feasibility of technological investments. We then construct a theoretical model that postulates the ... Keywords: Business case, Decision making, Economies of scale, IT assessment, IT evaluation, Information management, Information systems

Egon Berghout, Chee-Wee Tan

2013-11-01T23:59:59.000Z

354

Natural time analysis of critical phenomena: The case of pre-fracture electromagnetic emissions  

SciTech Connect

Criticality of complex systems reveals itself in various ways. One way to monitor a system at critical state is to analyze its observable manifestations using the recently introduced method of natural time. Pre-fracture electromagnetic (EM) emissions, in agreement to laboratory experiments, have been consistently detected in the MHz band prior to significant earthquakes. It has been proposed that these emissions stem from the fracture of the heterogeneous materials surrounding the strong entities (asperities) distributed along the fault, preventing the relative slipping. It has also been proposed that the fracture of heterogeneous material could be described in analogy to the critical phase transitions in statistical physics. In this work, the natural time analysis is for the first time applied to the pre-fracture MHz EM signals revealing their critical nature. Seismicity and pre-fracture EM emissions should be two sides of the same coin concerning the earthquake generation process. Therefore, we also examine the corresponding foreshock seismic activity, as another manifestation of the same complex system at critical state. We conclude that the foreshock seismicity data present criticality features as well.

Potirakis, S. M. [Department of Electronics, Technological Education Institute (TEI) of Piraeus, 250 Thivon and P. Ralli, Aigaleo, Athens GR-12244 (Greece)] [Department of Electronics, Technological Education Institute (TEI) of Piraeus, 250 Thivon and P. Ralli, Aigaleo, Athens GR-12244 (Greece); Karadimitrakis, A. [Department of Physics, Section of Electronics, Computers, Telecommunications and Control, University of Athens, Panepistimiopolis, Zografos, Athens GR-15784 (Greece)] [Department of Physics, Section of Electronics, Computers, Telecommunications and Control, University of Athens, Panepistimiopolis, Zografos, Athens GR-15784 (Greece); Eftaxias, K. [Department of Physics, Section of Solid State Physics, University of Athens, Panepistimiopolis, Zografos, Athens GR-15784 (Greece)] [Department of Physics, Section of Solid State Physics, University of Athens, Panepistimiopolis, Zografos, Athens GR-15784 (Greece)

2013-06-15T23:59:59.000Z

355

Adapting a GIS-Based Multicriteria Decision Analysis Approach for Evaluating New Power Generating Sites  

Science Conference Proceedings (OSTI)

There is a growing need to site new power generating plants that use cleaner energy sources due to increased regulations on air and water pollution and a sociopolitical desire to develop more clean energy sources. To assist utility and energy companies as well as policy-makers in evaluating potential areas for siting new plants in the contiguous United States, a geographic information system (GIS)-based multicriteria decision analysis approach is presented in this paper. The presented approach has led to the development of the Oak Ridge Siting Analysis for power Generation Expansion (OR-SAGE) tool. The tool takes inputs such as population growth, water availability, environmental indicators, and tectonic and geological hazards to provide an in-depth analysis for siting options. To the utility and energy companies, the tool can quickly and effectively provide feedback on land suitability based on technology specific inputs. However, the tool does not replace the required detailed evaluation of candidate sites. To the policy-makers, the tool provides the ability to analyze the impacts of future energy technology while balancing competing resource use.

Omitaomu, Olufemi A [ORNL; Blevins, Brandon R [ORNL; Jochem, Warren C [ORNL; Mays, Gary T [ORNL; Belles, Randy [ORNL; Hadley, Stanton W [ORNL; Harrison, Thomas J [ORNL; Bhaduri, Budhendra L [ORNL; Neish, Bradley S [ORNL; Rose, Amy N [ORNL

2012-01-01T23:59:59.000Z

356

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

E-Print Network (OSTI)

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

Alexander Stroeer; Jordan Camp

2009-03-11T23:59:59.000Z

357

Bio-Climatic Analysis and Thermal Performance of Upper Egypt A Case Study Kharga Region  

E-Print Network (OSTI)

As a result of the change and development of Egyptian society, Egyptian government has focused its attention of comprehensive development to various directions. One of these attentions is housing, construction and land reclamation in desert and Upper Egypt. In the recent century the most attentions of the government is the creation of new wadi parallel to Nile wadi in the west desert. Kharga Oasis is 25 degrees 26'56?North latitude and 30 degrees 32'24?East longitude. This oasis, is the largest of the oases in the westren desert of Egypt. It required the capital of the new wadi (Al Wadi Al Gadeed Government). The climate of this oasis is caricaturized by; aridity, high summer daytime temperature, large diurnal temperature variation, low relative humidity and high solar radiation. In such conditions, man losses his ability to work and to contribute effectively in the development planning due to the high thermal stress affected on him. In designing and planning in this region, it is necessary not only to understand the needs of the people but to create an indoor environment which is suitable for healthy, pleasant, and comfortable to live and work in it. So, efforts have been motivated towards the development of new concepts for building design and urban planning to moderate the rate, direction and magnitudes of heat flow. Also, reduce or if possible eliminate the energy expenditure for environmental control. In order to achieve this, attention has to be focused on building design to improve its thermal performance, which is a function of building form, orientation, location, and materials used and produce comfortable environmental conditions without increasing of energy consumed. This can be valid in three stage, the first one by using the bio-climatic analysis, the 2nd one by the handle and simplified calculation methods (Uvalue, Thermal time constant, and Degree day), and the 3rd one is by the simulation method. The admittance procedure is a technique for estimating cooling/heating load and temperature changes under cyclic conditions by using the thermal characteristics (Y-value, lambda, phi, Sf) of the building structure. It dependent on determining the daily means value and the swing about the mean. The admittance method is used and a computer program is developed to predict the heating and cooling load as well as the environmental air temperature by the author. This study deals with the bio-climatic analysis and thermal performance of building in Kharga Oasis. The results show that, the air catcher, court and Passive cooling systems (evaporative cooling), maintained the indoor climate in the thermal human comfort zone during the hottest period under the effect of climatic conditions of Kharga. Also shading devices, and suitable orientation achieve a harmony building with environment. Using insulating materials in exposed walls and roof save energy by about 60%. The Thermal insulation thicknesses between 0.03-0.05m for exposed walls and 0.05m for exposed roofs are suitable to valid the required thermal resistance in Kharga Oasis according to the Egyptian Residential Buildings Energy Code, ECP 306-2005.

Khalil, M. H.

2012-01-01T23:59:59.000Z

358

Dynamic Fracture Conductivity—An Experimental Investigation Based on Factorial Analysis  

E-Print Network (OSTI)

This work is about fracture conductivity; how to measure and model it based on experimental data. It is also about how to determine the relative importance of the factors that affect its magnitude and how to predict its magnitude based on these factors. We dynamically placed the slurry hereby simulating the slurry placement procedure in a field-scale fracture. We also used factorial and fractional factorial designs as the basis of our experimental investigation. The analysis and interpretation of experimental results take into account the stochastic nature of the process. We found that the relative importance of the investigated factors is dependent on the presence of outliers and how they are handled. Based on our investigation we concluded that the investigated factors arranged in order of decreasing impact on conductivity are: closure stress, polymer loading, flow back rate, presence of breaker, temperature and proppant concentration. In particular, we find that at high temperatures, fracture conductivity was severely reduced due to the formation of a dense proppant-polymer cake. Also, dehydration of the residual gel in the fracture at high flow back rates appears to cause severe damage to conductivity at higher temperatures. This represents a new way of thinking about the fracture cleanup process; not only as a displacement process, but also as a displacement and evaporative process. In engineering practice, this implies that aggressive flow back schemes are not necessarily beneficial for conductivity development. Also, we find that at low proppant concentrations, there is the increased likelihood of the formation of channels and high porosity fractures resulting in high fracture conductivities. The uniqueness of this work is a focus on the development of a conductivity model using regression analysis and also the illustration of a procedure that can be used to develop a conductivity model using dimensional analysis. We reviewed both methodologies and applied them to the challenge of modeling fracture conductivity from experimental studies.

Awoleke, Obadare O

2013-05-01T23:59:59.000Z

359

PV1 : an interactive computer model to support commercialization policy for photovoltaics policy analysis  

E-Print Network (OSTI)

The purpose of this report is the demonstrate the use of PVI as a policy analysis device. This analysis consists of the creation of a base case and the subsequent running of 50 additional cases to demonstrate the effects ...

Wulfe, Martin

1981-01-01T23:59:59.000Z

360

Genetic Algorithms for Agent-Based Infrastructure Interdependency Modeling and Analysis  

SciTech Connect

Today’s society relies greatly upon an array of complex national and international infrastructure networks such as transportation, electric power, telecommunication, and financial networks. This paper describes initial research combining agent-based infrastructure modeling software and genetic algorithms (GAs) to help optimize infrastructure protection and restoration decisions. This research proposes to apply GAs to the problem of infrastructure modeling and analysis in order to determine the optimum assets to restore or protect from attack or other disaster. This research is just commencing and therefore the focus of this paper is the integration of a GA optimization method with a simulation through the simulation’s agents.

May Permann

2007-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Development of a New Multilevel Converter-Based Intelligent Universal Transformer: Design Analysis  

Science Conference Proceedings (OSTI)

This report provides a comprehensive design analysis of a high-voltage multilevel converter-based intelligent universal transformer (IUT). The proposed IUT design includes back-to-back, interconnected, multi-level converters coupled to a switched inverter circuit via a high-frequency transformer. The input of the universal transformer can be coupled to a high-voltage distribution system such as 4.16-kV with the use of existing high-voltage silicon insulated-gate bipolar transistor (IGBT) devices, and the...

2004-03-29T23:59:59.000Z

362

Automatic Table Ground Truth Generation and a Background-Analysis-Based Table Structure Extraction  

E-Print Network (OSTI)

In this paper, we first describe an automatic table ground truth generation system which can efficiently generate a large amount of accurate table ground truth suitable for the development of table detection algorithms. Then a novel background-analysis-based, coarse-to-fine table identification algorithm and an X-Y cut table decomposition algorithm are described. We discuss an experimental protocol to evaluate the table detection algorithms. For a total of having vin table entities and a total cell entities, our table detection algorithm takes line, word segmentation results as input and obtains around cell correct detection rates.

Yalin Wang; Ihsin T. Phillips; Robert Haralick

2001-01-01T23:59:59.000Z

363

Analysis of energy use in building services of the industrial sector in California: Two case studies. Final report  

SciTech Connect

Energy-use patterns in many of California`s fastest-growing industries are not typical of the existing mix of industries in the US. Many California firms operate small- and medium-sized facilities housed in buildings used simultaneously or interchangeably over time for commercial (office, retail, warehouse) and industrial activities. In these industrial subsectors, the energy required for building services (providing occupant comfort and necessities like lighting, HVAC, office equipment, computers, etc.) may be at least as important as the more familiar process energy requirements -- especially for electricity and on-peak demand. Electricity for building services is sometimes priced as if it were base loaded like process uses; in reality this load varies significantly according to occupancy schedules and cooling and heating loads, much as in any commercial building. Using informal field surveys, simulation studies, and detailed analyses of existing data (including utility commercial/industrial audit files), we studied the energy use of this industrial subsector through a multi-step procedure: (1) characterizing non-process building energy and power use in California industries, (2) identifying conservation and load-shaping opportunities in industrial building services, and (3) investigating industrial buildings and system design methodologies. In an earlier report, we addressed these issues by performing an extensive survey of the existing publicly available data, characterizing and comparing the building energy use in this sector. In this report, we address the above objectives by examining and analyzing energy use in two industrial case-study facilities in California. Based on the information for the case studies, we discuss the design consideration for these industrial buildings, characterize their energy use, and review their conservation and load-shaping potentials. In addition, we identify and discuss some research ideas for further investigation.

Akbari, H.; Sezgen, O.

1991-09-01T23:59:59.000Z

364

FPGA Based Real-time Network Traffic Analysis using Traffic Dispersion Patterns  

SciTech Connect

The problem of Network Traffic Classification (NTC) has attracted significant amount of interest in the research community, offering a wide range of solutions at various levels. The core challenge is in addressing high amounts of traffic diversity found in today's networks. The problem becomes more challenging if a quick detection is required as in the case of identifying malicious network behavior or new applications like peer-to-peer traffic that have potential to quickly throttle the network bandwidth or cause significant damage. Recently, Traffic Dispersion Graphs (TDGs) have been introduced as a viable candidate for NTC. The TDGs work by forming a network wide communication graphs that embed characteristic patterns of underlying network applications. However, these patterns need to be quickly evaluated for mounting real-time response against them. This paper addresses these concerns and presents a novel solution for real-time analysis of Traffic Dispersion Metrics (TDMs) in the TDGs. We evaluate the dispersion metrics of interest and present a dedicated solution on an FPGA for their analysis. We also present analytical measures and empirically evaluate operating effectiveness of our design. The mapped design on Virtex-5 device can process 7.4 million packets/second for a TDG comprising of 10k flows at very high accuracies of over 96%.

Khan, F; Gokhale, M; Chuah, C N

2010-03-26T23:59:59.000Z

365

Model-based analysis of an arc protection and an emergency cooling system  

E-Print Network (OSTI)

Instrumentation and control (I&C) systems play a crucial role in the operation of nuclear power plants and other safety critical processes. An important change that will be going on in the near future is the replacement of the old analogue I&C systems by new digitalised ones. The programmable digital logic controllers enable more complicated control tasks than the old analogue systems and thus the verification of the control logic designs against safety requirements has become more important. In order to diminish the subjective component of the evaluation, there is a need to develop new formal verification methods. This report summarizes the work done in the MODSAFE 2007 project on two case studies where model checking techniques have been used to study an arc protection system and an emergency cooling system. Model checking tools offer typically a finite state machine based

Janne Valkonen; Ville Pettersson; Kim Björkman; Jan-erik Holmberg; Matti Koskimies; Keijo Heljanko; Ilkka Niemelä

2008-01-01T23:59:59.000Z

366

SAO network analysis of patents for technology trends identification: a case study of polymer electrolyte membrane technology in proton exchange membrane fuel cells  

Science Conference Proceedings (OSTI)

This paper suggests a method for Subject---Action---Object (SAO) network analysis of patents for technology trends identification by using the concept of function. The proposed method solves the shortcoming of the keyword-based approach to identification ... Keywords: Actor network theory, C63, C82, Co-word analysis, Function, Patent analysis, Patent mining, Technology Subject-Action-Object (SAO), Technology trends analysis

Sungchul Choi; Janghyeok Yoon; Kwangsoo Kim; Jae Yeol Lee; Cheol-Han Kim

2011-09-01T23:59:59.000Z

367

Assessment of HTGR Helium Compressor Analysis Tool Based on Newton-Raphson Numerical Application to Through-flow Analysis  

SciTech Connect

This study describes the development of a computer program for analyzing the off-design performance of axial flow helium compressors, which is one of the major concerns for the power conversion system of a high temperature gas-cooled reactor (HTGR). The compressor performance has been predicted by the aerodynamic analysis of meridional flow with allowances for losses. The governing equations have been derived from Euler turbomachine equation and the streamline curvature method, and then they have been merged into linearized equations based on the Newton-Raphson numerical method. The effect of viscosity is considered by empirical correlations to introduce entropy rises caused by primary loss sources. Use of the method has been illustrated by applying it to a 20-stage helium compressor of the GTHTR300 plant. As a result, the flow throughout the stages of the compressor has been predicted and the compressor characteristics have been also investigated according to the design specification. The program results show much better stability and good convergence with respect to other through-flow methods, and good agreement with the compressor performance map provided by JAEA. (authors)

Ji Hwan Kim; Hyeun Min Kim; Hee Cheon NO [Korea Advanced Institute of Science and Technology, 335 Gwahangno - 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)

2006-07-01T23:59:59.000Z

368

The Development of a Prototype Coupled Analysis and Nowcasting Knowledge-based System for Complex-Terrain Interaction Studies  

Science Conference Proceedings (OSTI)

An experimental weather classification, analysis, and nowcasting system, based upon a combination of artificial intelligence techniques and conventional numerical modeling, and designed for use as a real-time range/field forecasting aid, is ...

Montie M. Orgill; John D. Kincheloe; Robert A. Sutherland

1992-06-01T23:59:59.000Z

369

Over-allocation or abatement? : a preliminary analysis of the EU ETS based on the 2005 emission data  

E-Print Network (OSTI)

This paper provides an initial analysis of the EU ETS based on the installation-level data for verified emissions and allowance allocations in the first trading year. Those data, released on May 15, 2006, and subsequent ...

Ellerman, A. Denny

2006-01-01T23:59:59.000Z

370

Over-Allocation or Abatement? A Preliminary Analysis of the EU Emissions Trading Scheme Based on the 2005 Emissions Data  

E-Print Network (OSTI)

This paper provides an initial analysis of the European Union Emissions Trading Scheme (EU ETS) based on the installation-level data for verified emissions and allowance allocations in the first trading year. Those data, ...

Ellerman, A. Denny.

371

Furnace and Heat Recovery Area Design and Analysis for Conceptual Design of Supercritical O2-Based PC Boiler  

Science Conference Proceedings (OSTI)

The objective of the furnace and heat recovery area design and analysis task of the Conceptual Design of Supercritical Oxygen-Based PC Boiler study is to optimize the location and design of the furnace, burners, over-fire gas ports, and internal radiant surfaces. The furnace and heat recovery area were designed and analyzed using the FW-FIRE, Siemens, and HEATEX computer programs. The furnace is designed with opposed wall-firing burners and over-fire air ports. Water is circulated in the furnace by forced circulation to the waterwalls at the periphery and divisional wall panels within the furnace. Compared to the air-fired furnace, the oxygen-fired furnace requires only 65% of the surface area and 45% of the volume. Two oxygen-fired designs were simulated: (1) with cryogenic air separation unit (ASU) and (2) with oxygen ion transport membrane (OITM). The maximum wall heat flux in the oxygen-fired furnace is more than double that of the air-fired furnace due to the higher flame temperature and higher H{sub 2}O and CO{sub 2} concentrations. The coal burnout for the oxygen-fired case is 100% due to a 500 F higher furnace temperature and higher concentration of O{sub 2}. Because of the higher furnace wall temperature of the oxygen-fired case compared to the air-fired case, furnace water wall material was upgraded from T2 to T92. Compared to the air-fired heat recovery area (HRA), the oxygen-fired HRA total heat transfer surface is 35% less for the cryogenic design and 13% less for the OITM design due to more heat being absorbed in the oxygen-fired furnace and the greater molecular weight of the oxygen-fired flue gas. The HRA tube materials and wall thickness are nearly the same for the air-fired and oxygen-fired design since the flue gas and water/steam temperature profiles encountered by the heat transfer banks are similar.

Andrew Seltzer

2006-05-01T23:59:59.000Z

372

Analysis of molecular expression patterns and integration with other knowledge bases using probabilistic Bayesian network models  

Science Conference Proceedings (OSTI)

How can molecular expression experiments be interpreted with greater than ten to the fourth measurements per chip? How can one get the most quantitative information possible from the experimental data with good confidence? These are important questions whose solutions require an interdisciplinary combination of molecular and cellular biology, computer science, statistics, and complex systems analysis. The explosion of data from microarray techniques present the problem of interpreting the experiments. The availability of large-scale knowledge bases provide the opportunity to maximize the information extracted from these experiments. We have developed new methods of discovering biological function, metabolic pathways, and regulatory networks from these data and knowledge bases. These techniques are applicable to analyses for biomedical engineering, clinical, and fundamental cell and molecular biology studies. Our approach uses probabilistic, computational methods that give quantitative interpretations of data in a biological context. We have selected Bayesian statistical models with graphical network representations as a framework for our methods. As a first step, we use a nave Bayesian classifier to identify statistically significant patterns in gene expression data. We have developed methods which allow us to (a) characterize which genes or experiments distinguish each class from the others, (b) cross-index the resulting classes with other databases to assess biological meaning of the classes, and (c) display a gross overview of cellular dynamics. We have developed a number of visualization tools to convey the results. We report here our methods of classification and our first attempts at integrating the data and other knowledge bases together with new visualization tools. We demonstrate the utility of these methods and tools by analysis of a series of yeast cDNA microarray data and to a set of cancerous/normal sample data from colon cancer patients. We discuss extending our methods to inferring biological pathways and networks using more complex dynamic Bayesian networks.

Moler, Edward J.; Mian, I.S.

2000-03-01T23:59:59.000Z

373

Distributed Energy Resources at Naval Base Ventura County Building1512: A Sensitivity Analysis  

Science Conference Proceedings (OSTI)

This report is the second of a two-part study by BerkeleyLab of a DER (distributed energy resources) system at Navy Base VenturaCounty (NBVC). First, a preliminary assessment ofthe cost effectivenessof distributed energy resources at Naval Base Ventura County (NBVC)Building 1512 was conducted in response to the base s request for designassistance to the Federal Energy Management Program (Bailey and Marnay,2004). That report contains a detailed description of the site and theDER-CAM (Consumer Adoption Model) parameters used. This second reportcontains sensitivity analyses of key parameters in the DER system modelof Building 1512 at NBVC and additionally considers the potential forabsorption-powered refrigeration.The prior analysis found that under thecurrent tariffs, and given assumptions about the performance andstructure of building energy loads and available generating technologycharacteristics, installing a 600 kW DER system with absorption coolingand recovery heat capabilities could deliver cost savings of about 14percent, worth $55,000 per year. However, under current conditions, thisstudy also suggested that significant savings could be obtained ifBuilding 1512 changed from its current direct access contract to a SCETOU-8 (Southern California Edison time of use tariff number 8) ratewithout installing a DER system. Evaluated on this tariff, the potentialsavings from installation of a DER system would be about 4 percent of thetotal bill, or $16,000 per year.

Bailey, Owen C.; Marnay, Chris

2005-06-05T23:59:59.000Z

374

Density-based Energy Decomposition Analysis for Intermolecular Interactions with Variationally Determined Intermediate State Energies  

DOE Green Energy (OSTI)

The first purely density-based energy decomposition analysis (EDA) for intermolecular binding is developed within the density functional theory. The most important feature of this scheme is to variationally determine the frozen density energy, based on a constrained search formalism and implemented with the Wu-Yang algorithm [Q. Wu and W. Yang, J. Chem. Phys. 118, 2498 (2003) ]. This variational process dispenses with the Heitler-London antisymmetrization of wave functions used in most previous methods and calculates the electrostatic and Pauli repulsion energies together without any distortion of the frozen density, an important fact that enables a clean separation of these two terms from the relaxation (i.e., polarization and charge transfer) terms. The new EDA also employs the constrained density functional theory approach [Q. Wu and T. Van Voorhis, Phys. Rev. A 72, 24502 (2005)] to separate out charge transfer effects. Because the charge transfer energy is based on the density flow in real space, it has a small basis set dependence. Applications of this decomposition to hydrogen bonding in the water dimer and the formamide dimer show that the frozen density energy dominates the binding in these systems, consistent with the noncovalent nature of the interactions. A more detailed examination reveals how the interplay of electrostatics and the Pauli repulsion determines the distance and angular dependence of these hydrogen bonds.

Wu, Q.; Ayers, P.W.; Zhang, Y.

2009-10-28T23:59:59.000Z

375

Comparative analysis of energy data bases for household residential and transportation energy use  

SciTech Connect

Survey data bases covering household residential and transportation energy use were reviewed from the perspective of energy policy analysts and data base users. Twenty-three surveys, taken from 1972 to 1985, collected information on household energy consumption and expenditures, energy-using capital stock, and conservation activities. Ten of the surveys covered residential energy use only, including that for space heating and cooling, cooking, water heating, and appliances. Six surveys covered energy use only for household travel in personal vehicles. Seven surveys included data on both of these household energy sectors. Complete energy use data for a household in one year can be estimated only for 1983, using two surveys (one residential and one transportation) taken in the same households. The last nine surveys of the 23 were recent (1983--1985). Review of those nine was based on published materials only. The large-scale surveys generally had less-comprehensive data, while the comprehensive surveys were based on small samples. The surveys were timely and useful for analyzing four types of energy policies: economic regulation, environmental regulation, federal energy production, and direct regulation of energy consumption or production. Future surveys of energy use, such as those of residential energy consumption, should try to link their energy-use questions to large surveys, such as the American Housing Survey, to allow more accurate analysis of comparative impacts of energy policies among population categories of interest (e.g., minority/majority, metropolitan/nonmetropolitan area, census regions, and income class). 78 refs., 9 figs., 29 tabs.

Teotia, A.; Klein, Y.; LaBelle, S.

1988-11-01T23:59:59.000Z

376

CALORIMETER-BASED ADJUSTMENT OF MULTIPLICITY DETERMINED 240PU EFF KNOWN-A ANALYSIS FOR THE ASSAY OF PLUTONIUM  

Science Conference Proceedings (OSTI)

In nuclear material processing facilities, it is often necessary to balance the competing demands of accuracy and throughput. While passive neutron multiplicity counting is the preferred method for relatively fast assays of plutonium, the presence of low-Z impurities (fluorine, beryllium, etc.) rapidly erodes the assay precision of passive neutron counting techniques, frequently resulting in unacceptably large total measurement uncertainties. Conversely, while calorimeters are immune to these impurity effects, the long count times required for high accuracy can be a hindrance to efficiency. The higher uncertainties in passive neutron measurements of impure material are driven by the resulting large (>>2) {alpha}-values, defined as the ({alpha},n):spontaneous fission neutron emission ratio. To counter impurity impacts for high-{alpha} materials, a known-{alpha} approach may be adopted. In this method, {alpha} is determined for a single item using a combination of gamma-ray and calorimetric measurements. Because calorimetry is based on heat output, rather than a statistical distribution of emitted neutrons, an {alpha}-value determined in this way is far more accurate than one determined from passive neutron counts. This fixed {alpha} value can be used in conventional multiplicity analysis for any plutonium-bearing item having the same chemical composition and isotopic distribution as the original. With the results of single calorimeter/passive neutron/gamma-ray measurement, these subsequent items can then be assayed with high precision and accuracy in a relatively short time, despite the presence of impurities. A calorimeter-based known-{alpha} multiplicity analysis technique is especially useful when requiring rapid, high accuracy, high precision measurements of multiple plutonium bearing items having a common source. The technique has therefore found numerous applications at the Savannah River Site. In each case, a plutonium (or mixed U/Pu) bearing item is divided into multiple containers. A single item from that batch is then selected for both neutron and calorimetric measurements; all remaining items undergo a neutron measurement only. Using the technique mentioned above, the 'true' {alpha} value determined from the first (calorimeter and passive neutron measured) item is used in multiplicity analysis for all other items in the batch. The justification for using this {alpha} value in subsequent calculations is the assumption that the chemical composition and isotopic distribution of all batch items are the same, giving a constant ({alpha},n):spontaneous fission ratio. This analysis method has been successfully applied to the KIS Facility, significantly improving measurement uncertainties and reducing processing times for numerous items. Comprehensive plans were later developed to extend the use of this method to other applications, including the K-Area Shuffler and the H-Area Pu-Blending Project. While only the feasibility study for the Shuffler has been completed, implementation of the method in the H-Area Pu-Blending Project is currently in progress and has been successfully applied to multiple items. This report serves to document the details of this method in order to serve as a reference for future applications. Also contained herein are specific examples of the application of known-{alpha} multiplicity analysis.

Dubose, F.

2012-02-21T23:59:59.000Z

377

GIS-Based Hazardous Gas Dispersion, Simulations and Analysis Debasis Karmakar, Samit Ray Chaudhuri and Eduardo Jose Maguino  

E-Print Network (OSTI)

GIS-Based Hazardous Gas Dispersion, Simulations and Analysis Debasis Karmakar, Samit Ray Chaudhuri of Plant Area Performed scenario-based simulation of hazardous gas dispersion from a continuous area source comparison to be made under other conditions such as Jet fire, explosion, dispersion of heavy dense gas

Shinozuka, Masanobu

378

Performance Analysis of Existing 600MW Coal-Fired Power Plant with Ammonia-Based CO2 Capture  

Science Conference Proceedings (OSTI)

This paper analyzes the techno-economic performance of 600 MW coal-fired power plant with and without ammonia-based CO2 capture process, based on the operating data of an existing power plant. The simulation and analysis, with fully consideration of ... Keywords: CO2 capture, aqueous ammonia, existing power plant, techno-economic performance

Gang Xu; Liqiang Duan; Mingde Zhao; Yongping Yang; Ji Li; Le Li; Haizhan Chen

2010-06-01T23:59:59.000Z

379

Cut set-based risk and reliability analysis for arbitrarily interconnected networks  

DOE Patents (OSTI)

Method for computing all-terminal reliability for arbitrarily interconnected networks such as the United States public switched telephone network. The method includes an efficient search algorithm to generate minimal cut sets for nonhierarchical networks directly from the network connectivity diagram. Efficiency of the search algorithm stems in part from its basis on only link failures. The method also includes a novel quantification scheme that likewise reduces computational effort associated with assessing network reliability based on traditional risk importance measures. Vast reductions in computational effort are realized since combinatorial expansion and subsequent Boolean reduction steps are eliminated through analysis of network segmentations using a technique of assuming node failures to occur on only one side of a break in the network, and repeating the technique for all minimal cut sets generated with the search algorithm. The method functions equally well for planar and non-planar networks.

Wyss, Gregory D. (Albuquerque, NM)

2000-01-01T23:59:59.000Z

380

Convergence analysis of a CMFD method based on generalized equivalence theory  

SciTech Connect

CMFD acceleration methods have been successful in reducing the computational burden for steady-state and transient reactor calculations. However, recent work on a complex coupled code BWR ATWS event has exposed possible issues with the stability of the CMFD method when standard CMFD methods are used. During the simulation of the ATWS boron injection event in the BWR, the PARCS code failed to converge with the existing CMFD method. A new CMFD method based on generalized equivalence theory was developed and the PARCS solution converged for the same ATWS event. This paper presents the new method and a detailed analytic and numerical convergence analysis. The results show that the new CMFD converges for all possible cross sections combinations anticipated in Light Water Reactor simulation and unlike existing CMFD methods, it is very robust even when the initial guess is far from final true solution. (authors)

Xu, Y. [Argonne National Laboratory, Bldg. 208, 9700 South Case Ave., Argonne, IL 60439 (United States); Downar, T. [Dept. of Nuclear Engineering and Radiological Sciences, Univ. of Michigan, 2355 Bonisteel Blvd, Ann Arbor, MI 48109-2104 (United States)

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


381

Model-Based Analysis of Electric Drive Options for Medium-Duty Parcel Delivery Vehicles: Preprint  

DOE Green Energy (OSTI)

Medium-duty vehicles are used in a broad array of fleet applications, including parcel delivery. These vehicles are excellent candidates for electric drive applications due to their transient-intensive duty cycles, operation in densely populated areas, and relatively high fuel consumption and emissions. The National Renewable Energy Laboratory (NREL) conducted a robust assessment of parcel delivery routes and completed a model-based techno-economic analysis of hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle configurations. First, NREL characterized parcel delivery vehicle usage patterns, most notably daily distance driven and drive cycle intensity. Second, drive-cycle analysis results framed the selection of drive cycles used to test a parcel delivery HEV on a chassis dynamometer. Next, measured fuel consumption results were used to validate simulated fuel consumption values derived from a dynamic model of the parcel delivery vehicle. Finally, NREL swept a matrix of 120 component size, usage, and cost combinations to assess impacts on fuel consumption and vehicle cost. The results illustrated the dependency of component sizing on drive-cycle intensity and daily distance driven and may allow parcel delivery fleets to match the most appropriate electric drive vehicle to their fleet usage profile.

Barnitt, R. A.; Brooker, A. D.; Ramroth, L.

2010-12-01T23:59:59.000Z

382

Research article: Identifying novel prostate cancer associated pathways based on integrative microarray data analysis  

Science Conference Proceedings (OSTI)

The development and diverse application of microarray and next generation sequencing technologies has made the meta-analysis widely used in expression data analysis. Although it is commonly accepted that pathway, network and systemic level approaches ... Keywords: Gene set enrichment analysis, GeneGo database, KEGG database, Meta-analysis, Pathway enrichment analysis

Ying Wang; Jiajia Chen; Qinghui Li; Haiyun Wang; Ganqiang Liu; Qing Jing; Bairong Shen

2011-06-01T23:59:59.000Z

383

Analysis of Intracellular State Based on Controlled 3D Nanostructures Mediated Surface Enhanced Raman Scattering  

E-Print Network (OSTI)

Near-infrared surface-enhanced Raman spectroscopy (SERS) is a powerful technique for analyzing the chemical composition within a single living cell at unprecedented resolution. However, current SERS methods employing uncontrollable colloidal metal particles or non-uniformly distributed metal particles on a substrate as SERS-active sites show relatively low reliability and reproducibility. Here, we report a highly-ordered SERS-active surface that is provided by a gold nano-dots array based on thermal evaporation of gold onto an ITO surface through a nanoporous alumina mask. This new combined technique showed a broader distribution of hot spots and a higher signal-to-noise ratio than current SERS techniques due to the highly reproducible and uniform geometrical structures over a large area. This SERS-active surface was applied as cell culture system to study living cells in situ within their culture environment without any external preparation processes. We applied this newly developed method to cell-based research to differentiate cell lines, cells at different cell cycle stages, and live/dead cells. The enhanced Raman signals achieved from each cell, which represent the changes in biochemical compositions, enabled differentiation of each state and the conditions of the cells. This SERS technique employing a tightly controlled nanostructure array can potentially be applied to single cell analysis, early cancer diagnosis and cell physiology research.

Waleed Ahmed El-said; Tae-hyung Kim; Hyuncheol Kim; Jeong-woo Choi

2010-01-01T23:59:59.000Z

384

Economic analysis of coal-fired cogeneration plants for Air Force bases  

SciTech Connect

The Defense Appropriations Act of 1986 requires the Department of Defense to use an additional 1,600,000 tons/year of coal at their US facilities by 1995 and also states that the most economical fuel should be used at each facility. In a previous study of Air Force heating plants burning gas or oil, Oak Ridge National Laboratory found that only a small fraction of this target 1,600,000 tons/year could be achieved by converting the plants where coal is economically viable. To identify projects that would use greater amounts of coal, the economic benefits of installing coal-fired cogeneration plants at 7 candidate Air Force bases were examined in this study. A life-cycle cost analysis was performed that included two types of financing (Air Force and private) and three levels of energy escalation for a total of six economic scenarios. Hill, McGuire, and Plattsburgh Air Force Bases were identified as the facilities with the best potential for coal-fired cogeneration, but the actual cost savings will depend strongly on how the projects are financed and to a lesser extent on future energy escalation rates. 10 refs., 11 figs., 27 tabs.

Holcomb, R.S.; Griffin, F.P.

1990-10-01T23:59:59.000Z

385

Global Assessment of Hydrogen Technologies – Tasks 3 & 4 Report Economic, Energy, and Environmental Analysis of Hydrogen Production and Delivery Options in Select Alabama Markets: Preliminary Case Studies  

Science Conference Proceedings (OSTI)

This report documents a set of case studies developed to estimate the cost of producing, storing, delivering, and dispensing hydrogen for light-duty vehicles for several scenarios involving metropolitan areas in Alabama. While the majority of the scenarios focused on centralized hydrogen production and pipeline delivery, alternative delivery modes were also examined. Although Alabama was used as the case study for this analysis, the results provide insights into the unique requirements for deploying hydrogen infrastructure in smaller urban and rural environments that lie outside the DOE’s high priority hydrogen deployment regions. Hydrogen production costs were estimated for three technologies – steam-methane reforming (SMR), coal gasification, and thermochemical water-splitting using advanced nuclear reactors. In all cases examined, SMR has the lowest production cost for the demands associated with metropolitan areas in Alabama. Although other production options may be less costly for larger hydrogen markets, these were not examined within the context of the case studies.

Fouad, Fouad H.; Peters, Robert W.; Sisiopiku, Virginia P.; Sullivan Andrew J.; Gillette, Jerry; Elgowainy, Amgad; Mintz, Marianne

2007-12-01T23:59:59.000Z

386

Open source software maturity model based on linear regression and Bayesian analysis  

E-Print Network (OSTI)

Open Source Software (OSS) is widely used and is becoming a significant and irreplaceable part of the software engineering community. Today a huge number of OSS exist. This becomes a problem if one needs to choose from such a large pool of OSS candidates in the same category. An OSS maturity model that facilitates the software assessment and helps users to make a decision is needed. A few maturity models have been proposed in the past. However, the parameters in the model are assigned not based on experimental data but on human experiences, feelings and judgments. These models are subjective and can provide only limited guidance for the users at the best. This dissertation has proposed a quantitative and objective model which is built from the statistical perspective. In this model, seven metrics are chosen as criteria for OSS evaluation. A linear multiple-regression model is created to assign a final score based on these seven metrics. This final score provides a convenient and objective way for the users to make a decision. The coefficients in the linear multiple-regression model are calculated from 43 OSS. From the statistical perspective, these coefficients are considered random variables. The joint distribution of the coefficients is discussed based on Bayesian statistics. More importantly, an updating rule is established through Bayesian analysis to improve the joint distribution, and thus the objectivity of the coefficients in the linear multiple-regression model, according to new incoming data. The updating rule provides the model the ability to learn and improve itself continually.

Zhang, Dongmin

2007-08-01T23:59:59.000Z

387

Failure mode and effect analysis-based quality assurance for dynamic MLC tracking systems  

SciTech Connect

Purpose: To develop and implement a failure mode and effect analysis (FMEA)-based commissioning and quality assurance framework for dynamic multileaf collimator (DMLC) tumor tracking systems. Methods: A systematic failure mode and effect analysis was performed for a prototype real-time tumor tracking system that uses implanted electromagnetic transponders for tumor position monitoring and a DMLC for real-time beam adaptation. A detailed process tree of DMLC tracking delivery was created and potential tracking-specific failure modes were identified. For each failure mode, a risk probability number (RPN) was calculated from the product of the probability of occurrence, the severity of effect, and the detectibility of the failure. Based on the insights obtained from the FMEA, commissioning and QA procedures were developed to check (i) the accuracy of coordinate system transformation, (ii) system latency, (iii) spatial and dosimetric delivery accuracy, (iv) delivery efficiency, and (v) accuracy and consistency of system response to error conditions. The frequency of testing for each failure mode was determined from the RPN value. Results: Failures modes with RPN{>=}125 were recommended to be tested monthly. Failure modes with RPN<125 were assigned to be tested during comprehensive evaluations, e.g., during commissioning, annual quality assurance, and after major software/hardware upgrades. System latency was determined to be {approx}193 ms. The system showed consistent and accurate response to erroneous conditions. Tracking accuracy was within 3%-3 mm gamma (100% pass rate) for sinusoidal as well as a wide variety of patient-derived respiratory motions. The total time taken for monthly QA was {approx}35 min, while that taken for comprehensive testing was {approx}3.5 h. Conclusions: FMEA proved to be a powerful and flexible tool to develop and implement a quality management (QM) framework for DMLC tracking. The authors conclude that the use of FMEA-based QM ensures efficient allocation of clinical resources because the most critical failure modes receive the most attention. It is expected that the set of guidelines proposed here will serve as a living document that is updated with the accumulation of progressively more intrainstitutional and interinstitutional experience with DMLC tracking.

Sawant, Amit; Dieterich, Sonja; Svatos, Michelle; Keall, Paul [Stanford University, Stanford, California 94394 (United States); Varian Medical Systems, Palo Alto, California 94304 (United States); Stanford University, Stanford, California 94394 (United States)

2010-12-15T23:59:59.000Z

388

Monitoring Based Commissioning: Benchmarking Analysis of 24 UC/CSU/IOU Projects  

SciTech Connect

Buildings rarely perform as intended, resulting in energy use that is higher than anticipated. Building commissioning has emerged as a strategy for remedying this problem in non-residential buildings. Complementing traditional hardware-based energy savings strategies, commissioning is a 'soft' process of verifying performance and design intent and correcting deficiencies. Through an evaluation of a series of field projects, this report explores the efficacy of an emerging refinement of this practice, known as monitoring-based commissioning (MBCx). MBCx can also be thought of as monitoring-enhanced building operation that incorporates three components: (1) Permanent energy information systems (EIS) and diagnostic tools at the whole-building and sub-system level; (2) Retro-commissioning based on the information from these tools and savings accounting emphasizing measurement as opposed to estimation or assumptions; and (3) On-going commissioning to ensure efficient building operations and measurement-based savings accounting. MBCx is thus a measurement-based paradigm which affords improved risk-management by identifying problems and opportunities that are missed with periodic commissioning. The analysis presented in this report is based on in-depth benchmarking of a portfolio of MBCx energy savings for 24 buildings located throughout the University of California and California State University systems. In the course of the analysis, we developed a quality-control/quality-assurance process for gathering and evaluating raw data from project sites and then selected a number of metrics to use for project benchmarking and evaluation, including appropriate normalizations for weather and climate, accounting for variations in central plant performance, and consideration of differences in building types. We performed a cost-benefit analysis of the resulting dataset, and provided comparisons to projects from a larger commissioning 'Meta-analysis' database. A total of 1120 deficiency-intervention combinations were identified in the course of commissioning the projects described in this report. The most common location of deficiencies was in HVAC equipment (65% of sites), followed by air-handling and distributions systems (59%), cooling plant (29%), heating plants (24%), and terminal units (24%). The most common interventions were adjusting setpoints, modifying sequences of operations, calibration, and various mechanical fixes (each done in about two-thirds of the sites). The normalized rate of occurrence of deficiencies and corresponding interventions ranged from about 0.1/100ksf to 10/100ksf, depending on the issue. From these interventions flowed significant and highly cost-effective energy savings For the MBCx cohort, source energy savings of 22 kBTU/sf-year (10%) were achieved, with a range of 2% to 25%. Median electricity savings were 1.9 kWh/sf-year (9%), with a range of 1% to 17%. Peak electrical demand savings were 0.2 W/sf-year (4%), with a range of 3% to 11%. The aggregate commissioning cost for the 24 projects was $2.9 million. We observed a range of normalized costs from $0.37 to 1.62/sf, with a median value of $1.00/sf for buildings that implemented MBCx projects. Per the program design, monitoring costs as a percentage of total costs are significantly higher in MBCx projects (median value 40%) than typical commissioning projects included in the Meta-analysis (median value of 2% in the commissioning database). Half of the projects were in buildings containing complex and energy-intensive laboratory space, with higher associated costs. Median energy cost savings were $0.25/sf-year, for a median simple payback time of 2.5 years. Significant and cost-effective energy savings were thus obtained. The greatest absolute energy savings and shortest payback times were achieved in laboratory-type facilities. While impacts varied from project to project, on a portfolio basis we find MBCx to be a highly cost-effective means of obtaining significant program-level energy savings across a variety of building types. E

Mills, Evan; Mathew, Paul

2009-04-01T23:59:59.000Z

389

Physically based modeling of rainfall-triggered landslides: a case study in the Luquillo forest, Puerto Rico  

E-Print Network (OSTI)

This paper presents the development of a rainfall-triggered landslide module within an existing physically based spatially distributed ecohydrologic model. The model, tRIBS-VEGGIE (Triangulated Irregular Networks-based ...

Arnone, E.

390

A needs-based approach to activity generation for travel demand analysis/  

E-Print Network (OSTI)

This thesis develops a needs-based framework for behavioral enhancement of conventional activity-based travel demand models. Operational activity-based models specify activity generation models based on empirical considerations ...

Pattabhiraman, Varun R. (Varun Ramakrishna)

2012-01-01T23:59:59.000Z

391

Nickel-based superalloy operating temperature determination via analysis of gamma/gamma' microstructure and coating/base material interdiffusion  

E-Print Network (OSTI)

The average operating temperature of RENÉ N5® high pressure turbine blades was evaluated via [gamma]/[gamma]' microstructure and coating/base metal interdiffusion methods. The [gamma]' volume fraction was measured by point ...

Ham, Wendy D. (Wendy Decker)

2005-01-01T23:59:59.000Z

392

Performance Analysis of Positive-feedback-based Active Anti-islanding Schemes for Inverter-Based Distributed Generators  

SciTech Connect

Recently proposed positive-feedback-based anti-islanding schemes (AI) are highly effective in preventing islanding without causing any degradation in power quality. This paper aims to analyze the performance of these schemes quantitatively in the context of the dynamic models of inverter-based distributed generators (DG). In this study, the characteristics of these active anti-islanding methods are discussed and design guidelines are derived.

Du, Pengwei; Aponte, Erick E.; Nelson, J. Keith

2010-06-14T23:59:59.000Z

393

Regression Models for Demand Reduction based on Cluster Analysis of Load Profiles  

E-Print Network (OSTI)

on Cluster Analysis of Load Profiles Nobuyuki Yamaguchi,on Cluster Analysis of Load Profiles Nobuyuki Yamaguchi,regressions, using actual load profile data of Pacific Gas

Kiliccote, Sila

2010-01-01T23:59:59.000Z

394

Estimating vegetation cover in an urban environment based on Landsat ETM imagery: A case study in Phoenix, USA  

Science Conference Proceedings (OSTI)

Studies of urban ecological systems can be greatly enhanced by combining ecosystem modelling and remote sensing which often requires establishing statistical relationships between field and remote sensing data. At the Central Arizona-Phoenix Long-Term ... Keywords: Landsat ETM+, Linear spectral mixture analysis, Regression analysis, Urban, Vegetation index

A. Buyantuyev; J. Wu; C. Gries

2007-01-01T23:59:59.000Z

395

A new framework for elimination-based data flow analysis using DJ graphs  

Science Conference Proceedings (OSTI)

Keywords: DJ graphs, Tarjan's interval, exhaustive and incremental data flow analysis, irreducible flowgraphs, reducible flowgraphs

Vugranam C. Sreedhar; Guang R. Gao; Yong-Fong Lee

1998-03-01T23:59:59.000Z

396

Critical analysis of the Hanford spent nuclear fuel project activity based cost estimate  

Science Conference Proceedings (OSTI)

In 1997, the SNFP developed a baseline change request (BCR) and submitted it to DOE-RL for approval. The schedule was formally evaluated to have a 19% probability of success [Williams, 1998]. In December 1997, DOE-RL Manager John Wagoner approved the BCR contingent upon a subsequent independent review of the new baseline. The SNFP took several actions during the first quarter of 1998 to prepare for the independent review. The project developed the Estimating Requirements and Implementation Guide [DESH, 1998] and trained cost account managers (CAMS) and other personnel involved in the estimating process in activity-based cost (ABC) estimating techniques. The SNFP then applied ABC estimating techniques to develop the basis for the December Baseline (DB) and documented that basis in Basis of Estimate (BOE) books. These BOEs were provided to DOE in April 1998. DOE commissioned Professional Analysis, Inc. (PAI) to perform a critical analysis (CA) of the DB. PAI`s review formally began on April 13. PAI performed the CA, provided three sets of findings to the SNFP contractor, and initiated reconciliation meetings. During the course of PAI`s review, DOE directed the SNFP to develop a new baseline with a higher probability of success. The contractor transmitted the new baseline, which is referred to as the High Probability Baseline (HPB), to DOE on April 15, 1998 [Williams, 1998]. The HPB was estimated to approach a 90% confidence level on the start of fuel movement [Williams, 1998]. This high probability resulted in an increased cost and a schedule extension. To implement the new baseline, the contractor initiated 26 BCRs with supporting BOES. PAI`s scope was revised on April 28 to add reviewing the HPB and the associated BCRs and BOES.

Warren, R.N.

1998-09-29T23:59:59.000Z

397

Multi-Path Transportation Futures Study: Vehicle Characterization and Scenario Analyses - Appendix E: Other NEMS-MP Results for the Base Case and Scenarios  

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

Appendix E: Other NEMS-MP Results Appendix E: Other NEMS-MP Results for the Base Case and Scenarios Energy Systems Division Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62

398

A MCDM-based expert system for climate-change impact assessment and adaptation planning - A case study for the Georgia Basin, Canada  

Science Conference Proceedings (OSTI)

An MCDM-based expert system was developed to tackle the interrelationships between the climate change and the adaptation policies in terms of water resources management in the Georgia Basin, Canada. User interfaces of the developed expert system, named ... Keywords: Adaptation, Climate change, Georgia Basin, MCDM, Policy analysis, Water resources

X. S. Qin; G. H. Huang; A. Chakma; X. H. Nie; Q. G. Lin

2008-04-01T23:59:59.000Z

399

Improved Methods for PCA-Based Reconstructions: Case Study Using the Steig et al. (2009) Antarctic Temperature Reconstruction  

Science Conference Proceedings (OSTI)

A detailed analysis is presented of a recently published Antarctic temperature reconstruction that combines satellite and ground information using a regularized expectation–maximization algorithm. Though the general reconstruction concept has ...

Ryan O’Donnell; Nicholas Lewis; Steve McIntyre; Jeff Condon

2011-04-01T23:59:59.000Z

400

Science-Based Simulation Model of Human Performance for Human Reliability Analysis  

Science Conference Proceedings (OSTI)

Human reliability analysis (HRA), a component of an integrated probabilistic risk assessment (PRA), is the means by which the human contribution to risk is assessed, both qualitatively and quantitatively. However, among the literally dozens of HRA methods that have been developed, most cannot fully model and quantify the types of errors that occurred at Three Mile Island. Furthermore, all of the methods lack a solid empirical basis, relying heavily on expert judgment or empirical results derived in non-reactor domains. Finally, all of the methods are essentially static, and are thus unable to capture the dynamics of an accident in progress. The objective of this work is to begin exploring a dynamic simulation approach to HRA, one whose models have a basis in psychological theories of human performance, and whose quantitative estimates have an empirical basis. This paper highlights a plan to formalize collaboration among the Idaho National Laboratory (INL), the University of Maryland, and The Ohio State University (OSU) to continue development of a simulation model initially formulated at the University of Maryland. Initial work will focus on enhancing the underlying human performance models with the most recent psychological research, and on planning follow-on studies to establish an empirical basis for the model, based on simulator experiments to be carried out at the INL and at the OSU.

Dana L. Kelly; Ronald L. Boring; Ali Mosleh; Carol Smidts

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Depositional Model of the Marcellus Shale in West Virginia Based on Facies Analysis  

Science Conference Proceedings (OSTI)

A lithologic analysis of well exposed Marcellus outcrops has identified six different facies in West Virginia and neighboring states: (1) light gray calcareous shale, (2) fossiliferous limestone, (3) black calcareous shale, (4) black noncalcareous shale, (5) dark gray noncalcareous shale, and (6) K-bentonite. Close interbedding of these rock types attests to a complex, ever-changing environment on the eastern foreland ramp of the Appalachian Basin. The environmental setting was clearly not a deep trough, permanently anoxic, salinity stratified, sediment starved, and populated exclusively by phytoplankton—the traditional depositional model. To the contrary, our sedimentary data suggest a rather shallow water depth, intermittent anoxia, normal-marine salinity, a fluctuating input of siliciclastic mud, and faunal communities of low and moderate diversity. Interbedding of the shale and limestone lithofacies as well as the vertical stacking of facies associations is explained most simply by fluctuations in water depth coupled with fluctuations in sediment supply. The sea floor was, at times, immediately below wave base (Facies 1 and 2), around the depth of the thermocline (Facies 2 and 3), or below the thermocline (Facies 4 and 5), relative sea level changing through two sequences of lowstand, transgression, and highstand. Simultaneously the supply of siliciclastic mud was greater at times of lowstand (increased erosion) and highstand (prograding shoreline), and the supply smaller during transgression (sediment stored in distant coastal plain).

Bruner, Kathy

2011-11-14T23:59:59.000Z

402

Toward the regulation of ubiquitous mobile government: a case study on location-based emergency services in Australia  

Science Conference Proceedings (OSTI)

Mobile alerts, notifications and location-based emergency warning systems are now an established part of mobile government strategies in an increasing number of countries worldwide. In Australia the national emergency warning system (NEWS) was instituted ... Keywords: Emergency management, Location-based services, Mobile government, Regulation

Anas Aloudat; Katina Michael

2011-01-01T23:59:59.000Z

403

Review and comparison of web- and disk-based tools for residential energy analysis  

E-Print Network (OSTI)

Glossary; • General program help; • Help search; • Example input and output sets; • Non-energyGlossary no • General program help no • Context-sensitive help no • Site search no • Case studies no • Non-energyGlossary • General program help • Context-sensitive help • Help search • Example input and output sets • Case studies • Non-energy

Mills, Evan

2002-01-01T23:59:59.000Z

404

Cost Analysis of an HIV/AIDS Prevention Project: A Case Study of the AIDS 3 Project in BENIN.  

E-Print Network (OSTI)

??HIV/AIDS Cost analysis The objective of this thesis is to undertake a cost analysis of an HIV/AIDS prevention programme targeting vulnerable groups in Benin. The… (more)

Mito-Yobo, Kodjo Ferdinand

2011-01-01T23:59:59.000Z

405

Research article: Meta-analysis of microarray data: The case of imatinib resistance in chronic myelogenous leukemia  

Science Conference Proceedings (OSTI)

With the proliferation of related microarray studies by independent groups, a natural approach to analysis would be to combine the results across studies. In this article, we address a meta-analysis of the gene expression data on imatinib resistance ... Keywords: CML, Gene expression, Imatinib resistance, Meta-analysis, Microarrays

Francisco J. Burguillo; Javier Martin; Inmaculada Barrera; William G. Bardsley

2010-06-01T23:59:59.000Z

406

Market-Based Valuation of New Coal-Fired Generation: Case Studies of Investment Risk and Profitability  

Science Conference Proceedings (OSTI)

Natural gas turbine technology has dominated new generation capacity additions in the United States, yet several years of unexpectedly high natural gas prices are driving interest in alternatives. This report uses case studies of new coal-fired generation to address the question of whether coal can be a good choice for the private investor. The studies give great detail on possible coal plants in Texas and some guidance on possible projects in Virginia, Ohio, and Indiana. The studies provide a comprehens...

2003-03-26T23:59:59.000Z

407

New wavelet-based approach intended for the analysis of subtle features of complex natural signals  

Science Conference Proceedings (OSTI)

The present paper is devoted to the development of methods and algorithms intended for the analysis of complex natural signals (time series). Due to their variability, irregularity and complex structure the task of signal analysis and processing in the ...

O. V. Mandrikova; I. S. Solovjev; V. V. Geppener; D. M. Klionsky

2011-06-01T23:59:59.000Z

408

Systems Analysis of an Advanced Nuclear Fuel Cycle Based on a Modified UREX+3c Process  

SciTech Connect

The research described in this report was performed under a grant from the U.S. Department of Energy (DOE) to describe and compare the merits of two advanced alternative nuclear fuel cycles -- named by this study as the “UREX+3c fuel cycle” and the “Alternative Fuel Cycle” (AFC). Both fuel cycles were assumed to support 100 1,000 MWe light water reactor (LWR) nuclear power plants operating over the period 2020 through 2100, and the fast reactors (FRs) necessary to burn the plutonium and minor actinides generated by the LWRs. Reprocessing in both fuel cycles is assumed to be based on the UREX+3c process reported in earlier work by the DOE. Conceptually, the UREX+3c process provides nearly complete separation of the various components of spent nuclear fuel in order to enable recycle of reusable nuclear materials, and the storage, conversion, transmutation and/or disposal of other recovered components. Output of the process contains substantially all of the plutonium, which is recovered as a 5:1 uranium/plutonium mixture, in order to discourage plutonium diversion. Mixed oxide (MOX) fuel for recycle in LWRs is made using this 5:1 U/Pu mixture plus appropriate makeup uranium. A second process output contains all of the recovered uranium except the uranium in the 5:1 U/Pu mixture. The several other process outputs are various waste streams, including a stream of minor actinides that are stored until they are consumed in future FRs. For this study, the UREX+3c fuel cycle is assumed to recycle only the 5:1 U/Pu mixture to be used in LWR MOX fuel and to use depleted uranium (tails) for the makeup uranium. This fuel cycle is assumed not to use the recovered uranium output stream but to discard it instead. On the other hand, the AFC is assumed to recycle both the 5:1 U/Pu mixture and all of the recovered uranium. In this case, the recovered uranium is reenriched with the level of enrichment being determined by the amount of recovered plutonium and the combined amount of the resulting MOX. The study considered two sub-cases within each of the two fuel cycles in which the uranium and plutonium from the first generation of MOX spent fuel (i) would not be recycled to produce a second generation of MOX for use in LWRs or (ii) would be recycled to produce a second generation of MOX fuel for use in LWRs. The study also investigated the effects of recycling MOX spent fuel multiple times in LWRs. The study assumed that both fuel cycles would store and then reprocess spent MOX fuel that is not recycled to produce a next generation of LWR MOX fuel and would use the recovered products to produce FR fuel. The study further assumed that FRs would begin to be brought on-line in 2043, eleven years after recycle begins in LWRs, when products from 5-year cooled spent MOX fuel would be available. Fuel for the FRs would be made using the uranium, plutonium, and minor actinides recovered from MOX. For the cases where LWR fuel was assumed to be recycled one time, the 1st generation of MOX spent fuel was used to provide nuclear materials for production of FR fuel. For the cases where the LWR fuel was assumed to be recycled two times, the 2nd generation of MOX spent fuel was used to provide nuclear materials for production of FR fuel. The number of FRs in operation was assumed to increase in successive years until the rate that actinides were recovered from permanently discharged spent MOX fuel equaled the rate the actinides were consumed by the operating fleet of FRs. To compare the two fuel cycles, the study analyzed recycle of nuclear fuel in LWRs and FRs and determined the radiological characteristics of irradiated nuclear fuel, nuclear waste products, and recycle nuclear fuels. It also developed a model to simulate the flows of nuclear materials that could occur in the two advanced nuclear fuel cycles over 81 years beginning in 2020 and ending in 2100. Simulations projected the flows of uranium, plutonium, and minor actinides as these nuclear fuel materials were produced and consumed in a fleet of 100 1,000 MWe LWRs and in FRs. The model als

E. R. Johnson; R. E. Best

2009-12-28T23:59:59.000Z

409

Crossing the Divide: A Case Study of Cross-Cultural Organizational Culture and Leadership Perceptions in a Faith-Based Non-Profit  

E-Print Network (OSTI)

For this qualitative research a single case study was conducted of a faith-based non-profit organization, Health Education and Literacy Providers (H.E.L.P.), which operates simultaneously in the United States and Nigeria. The purpose of this study was to explore the cross-cultural leadership phenomena occurring within H.E.L.P. and to provide evaluation services and research data to the American members of H.E.L.P. Participants included a sample of the American board members, Nigerian board members, and Nigerian employees. Three data collection methods were used to achieve triangulation including participant observations, interviews, and analysis of documents. The first research objective was to investigate the cross-cultural leadership context by analyzing the organizational culture of H.E.L.P. in Nigeria. Results revealed H.E.L.P. was designed by American board members to operate as a bureaucratic culture with an emphasis on a business-like structure, centralized authority, compartmentalization, and efficiency. The Nigerian board members and employees, however, expressed a desire for a supportive culture that focused on love and harmony uncovering a discrepancy between American and Nigerian preferences in organizational culture typology. The results from the Global Leadership and Organizational Behavior Effectiveness (GLOBE) study were referenced to provide a cultural explanation for variations in organizational culture preferences. According to GLOBE study findings, the United States ranked higher on performance orientation meaning Americans are more likely to value results above people, ambition, and competitiveness, and explains the American?s desire for a bureaucratic organizational culture. Nigeria ranked behind the United States as a lower performance oriented society meaning individuals place high value on relationships and harmony, explaining their desire for a supportive culture. The second and third research objectives were to determine how H.E.L.P.'s Nigerian members perceive effective leadership within their culture, and determine how the Nigerians? definition of effective leadership supports or refutes the literature on prevalent Westernized leadership theories. Results indicated the overarching leadership theme perceived to be effective by the Nigerian members of H.E.L.P. was love. Several aspects of a loving leader were evident in the data and divided into five categories each with one subcategory. These findings supported both Transformational and Authentic leadership theories.

Muenich, Joelle 1987-

2012-12-01T23:59:59.000Z

410

Multidimensional Data Model Research for Data Mart Based Analysis System of Drilling Fluid  

Science Conference Proceedings (OSTI)

For the sake of complex analysis requirements of drilling fluid analysis system, this paper proposes a multidimensional data model and implement the solution of data mart due to the analyzing weaknesses of conventional information system. Since the database ... Keywords: drilling fluid, Data Mart, Multidimensional Data Model, Multi-Analysis, Fact Tables, Dimension Tables

Li Jian; Wang Bing; Xu Bihua; Liang Dachun

2010-12-01T23:59:59.000Z

411

Evaluation of preliminary data analysis framework in software cost estimation based on ISBSG R9 Data  

Science Conference Proceedings (OSTI)

Previous research has argued that preliminary data analysis is necessary for software cost estimation. In this paper, a framework for such analysis is applied to a substantial corpus of historical project data (ISBSG R9 data), selected without explicit ... Keywords: ISBSG Data R9, Software cost estimation, Software engineering data analysis

Qin Liu; Wen Zhong Qin; Robert Mintram; Margaret Ross

2008-09-01T23:59:59.000Z

412

Assessment of human physchophysiological states based on methods for heart rate variability analysis  

Science Conference Proceedings (OSTI)

We investigate certain parameters that characterize heart rate variability, as well as combinations of these parameters in terms of assessing their information value for regulating the current psychophysiological state of an operator during a mental ... Keywords: assessment of a person's psychophysiological state, automated ECG analysis, digital signal analysis, heart rate variability analysis

A. N. Kalinichenko; O. D. Yur'Eva

2012-10-01T23:59:59.000Z

413

Mobility-supporting data management for location-based mobile systems: the special case of single category location repositories  

Science Conference Proceedings (OSTI)

Location-based mobile applications require timely generation of user-centric proximities from application-relevant repositories of business locations. The proximity generation requirement is poorly served by conventional query resolution methods which ...

James E. Wyse

2012-05-01T23:59:59.000Z

414

Bias Adjustment of Satellite Precipitation Estimation Using Ground-Based Measurement: A Case Study Evaluation over the Southwestern United States  

Science Conference Proceedings (OSTI)

Reliable precipitation measurement is a crucial component in hydrologic studies. Although satellite-based observation is able to provide spatial and temporal distribution of precipitation, the measurements tend to show systematic bias. This paper ...

Farid Ishak Boushaki; Kuo-Lin Hsu; Soroosh Sorooshian; Gi-Hyeon Park; Shayesteh Mahani; Wei Shi

2009-10-01T23:59:59.000Z

415

Radar-Based Quantitative Precipitation Estimation for the Cool Season in Complex Terrain: Case Studies from the NOAA Hydrometeorology Testbed  

Science Conference Proceedings (OSTI)

This study explores error sources of the National Weather Service operational radar-based quantitative precipitation estimation (QPE) during the cool season over the complex terrain of the western United States. A new, operationally geared radar ...

Jian Zhang; Youcun Qi; David Kingsmill; Kenneth Howard

2012-12-01T23:59:59.000Z

416

Energy R&D portfolio analysis based on climate change mitigation  

SciTech Connect

The diverse nature and uncertain potential of the energy technologies that are or may be available to mitigate greenhouse gas emissions pose a challenge to policymakers trying to invest public funds in an optimal R&D portfolio. This paper discusses two analytical approaches to this challenge used to inform funding decisions related to the U.S. Department of Energy (DOE) applied energy R&D portfolio. The two approaches are distinguished by the constraints under which they were conducted: the need to provide an end-to-end portfolio analysis as input to internal DOE budgeting processes, but with limited time and subject to institutional constraints regarding important issues such as expert judgment. Because of these constraints, neither approach should be viewed as an attempt to push forward the state of the art in portfolio analysis in the abstract. Instead, they are an attempt to use more stylized, heuristic methods that can provide first-order insights in the DOE institutional context. Both approaches make use of advanced technology scenarios implemented in an integrated assessment modeling framework and then apply expert judgment regarding the likelihood of achieving associated R&D and commercialization goals. The approaches differ in the granularity of the scenarios used and in the definition of the benefits of technological advance: in one approach the benefits are defined as the cumulative emission reduction attributable to a particular technology; in the other approach benefits are defined as the cumulative cost reduction. In both approaches a return on investment (ROI) criterion is established based on benefits divided by federal R&D investment. The ROI is then used to build a first-order approximation of an optimal applied energy R&D investment portfolio. Although these methodologies have been used to inform an actual budget request, the results reflect only one input among many used in budget formulation. The results are therefore not representative of an official U.S. government or DOE funding recommendation but should instead be considered illustrative of the way in which methodologies such as these could be applied.

Pugh, Graham; Clarke, Leon E.; Marlay, Robert; Kyle, G. Page; Wise, Marshall A.; McJeon, Haewon C.; Chan, Gabriel

2011-07-01T23:59:59.000Z

417

Experimental Analysis of Water Based Drilling Fluid Aging Processes at High Temperature and High Pressure Conditions  

E-Print Network (OSTI)

In efforts to render the safest, fastest, and most cost efficient drilling program for a high temperature and high pressure (HT/HP) well the maximization of drilling operational efficiencies is key. Designing an adequate, HT/HP well specific, drilling fluid is of most importance and a technological challenge that can greatly affect the outcome of the overall operational efficiency. It is necessary to have a sound fundamental understanding of the behavior that water-based muds (WBM) exhibit when exposed to HT/HP conditions. Therefore, in order to adequately design and treat a WBM for a HT/HP well specific drilling program, it is essential that the mud be evaluated at HT/HP conditions. Currently, industry standard techniques used to evaluate WBM characteristics involve aging the fluid sample to a predetermined temperature, based on the anticipated bottom hole temperature (BHT), either statically or dynamically, for a predetermined length, then cooling and mixing the fluid and measuring its rheological properties at a significantly lower temperature. This, along with the fact that the fluid is not subjected to the anticipated bottom hole pressure (BHP) during or after the aging process, brings to question if the properties recorded are those that are truly experienced down-hole. Furthermore, these testing methods do not allow the user to effectively monitor the changes during the aging process. The research in this thesis is focused on evaluating a high performance WBM and the current test procedures used to evaluate their validity. Experimental static and dynamic aging tests were developed for comparative analysis as well to offer a more accurate and precise method to evaluate the effects experienced by WBM when subjected to HT/HP conditions. The experimental tests developed enable the user to monitor and evaluate, in real-time, the rheological changes that occur during the aging of a WBM while being subjected to true BHT and BHP. Detailed standard and experimental aging tests were conducted and suggest that the standard industry tests offer false rheological results with respect to true BHT and BHP. Furthermore, the experimental aging tests show that high pressure has a significant effect on the rheological properties of the WBM at elevated temperatures.

Zigmond, Brandon

2012-08-01T23:59:59.000Z

418

A Bayesian sensitivity analysis applied to an Agent-based model of bird population response to landscape change  

Science Conference Proceedings (OSTI)

Agricultural land management has important impacts on land use and vegetation that can rapidly induce ecosystem change. Birds are often used as indicators of such impacts of landscape change on ecosystems. However, predicting the response of birds to ... Keywords: ALMaSS, Agent-based model, BACCO, Emulator, Land use policy, Meta-model, Sensitivity analysis, Set-aside removal, Skylarks, Uncertainty

Hazel R. Parry, Christopher J. Topping, Marc C. Kennedy, Nigel D. Boatman, Alistair W. A. Murray

2013-07-01T23:59:59.000Z

419

Agent-Based Modelling of Socio-Ecosystems: A Methodology for the Analysis of Adaptation to Climate Change  

Science Conference Proceedings (OSTI)

The integrated-environmental, economic and social-analysis of climate change calls for a paradigm shift as it is fundamentally a problem of complex, bottom-up and multi-agent human behaviour. There is a growing awareness that global environmental change ... Keywords: Agent-Based Modelling, Bottom-Up Exploration, Climate Change Adaptation, Socio-Ecosystems, Sustainability Strategies

Stefano Balbi; Carlo Giupponi

2010-10-01T23:59:59.000Z

420

RECOGNITION OF NOISY SPEECH USING CUMULANT-BASED LINEAR PREDICTION ANALYSIS K.K. Paliwal and M.M. Sondhi  

E-Print Network (OSTI)

]. The cumulant-based LF analysis method can suppress the effects of ad&he Gaussiannoise whether white or colored to deal with thus problem [2,3,4, 5,6,7]. In this paper, we propose to use LF parameters derived through-order cumulants in thuspaper. However, the results reported in this paper can be extended to higher

Note: This page contains sample records for the topic "analysis base cases" 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

Comparative analysis of market-based health delivery models in rural India  

E-Print Network (OSTI)

The rapid economic growth in India and accompanying demand for improved healthcare, particularly in rural populations, make a compelling case for global pharmaceutical companies to develop new business models to serve these ...

Yap, Nicole

2013-01-01T23:59:59.000Z

422

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

1910 to 1980, the success of steam turbines led to a case ofescape the lock-in to steam turbine technology. First, gasdevices to improve steam turbine performance, and then they

Lipman, Timothy Edward

1999-01-01T23:59:59.000Z

423

A New Procedure Based on Surface Renewal Analysis to Estimate Sensible Heat Flux: A Case Study over Grapevines  

Science Conference Proceedings (OSTI)

Grapevines are grown on a range of soils and in different climates. Depending on the desired final product and method of harvesting, the trellis system, and hence vineyard architecture, varies dramatically. Consequently, the crop coefficients ...

F. Castellví; R. L. Snyder

2010-04-01T23:59:59.000Z

424

An Agent-based Strategy for Deploying Analysis Models into Specification and Design for Distributed APS Systems  

E-Print Network (OSTI)

Despite the extensive use of the agent technology in the Supply Chain Management field, its integration with Advanced Planning and Scheduling (APS) tools still represents a promising field with several open research questions. Specifically, the literature falls short in providing an integrated framework to analyze, specify, design and implement simulation experiments covering the whole simulation cycle. Thus, this paper proposes an agent-based strategy to convert the 'analysis' models into 'specification' and 'design' models combining two existing methodologies proposed in the literature. The first one is a recent and unique approach dedicated to the 'analysis' of agent-based APS systems. The second one is a well-established methodological framework to 'specify' and 'design' agent-based supply chain systems. The proposed conversion strategy is original and is the first one allowing simulation analysts to integrate the whole simulation development process in the domain of distributed APS.

de Santa-Eulalia, Luis Antonio; Frayret, Jean-Marc

2011-01-01T23:59:59.000Z

425

Modeling, design and analysis of micro-scale Rankine-based systems  

E-Print Network (OSTI)

This thesis presents the modeling and design of two major types of micro Rankine-cycle-based machines: a single-Rankine-based power system and a waste-heat-driven cooler. As part of the Massachusetts Institute of Technology ...

Cui, Ling, 1978-

2004-01-01T23:59:59.000Z

426

Internet-based 'social sharing' as a new form of global production: The case of SETI@home  

Science Conference Proceedings (OSTI)

Benkler (Sharing nicely: on shareable goods and the emergence of sharing as a modality of economic production, Yale Law Journal, 2004, vol. 114, pp. 273-358) has argued that 'social sharing' via Internet-based distributed computing is a new, so far under-appreciated ... Keywords: Digital divide, Distributed computing, Economic production, SETI@home, Shareable goods, Social sharing

Hans-Jürgen Engelbrecht

2008-08-01T23:59:59.000Z

427

Extracting magnetic anomalies based on an improved BEMD method: A case study in the Pangxidong Area, South China  

Science Conference Proceedings (OSTI)

In bidimensional empirical mode decomposition, an appropriate stoppage criterion for the sifting process is important. To solve the problem of unstable convergence, a stepwise stop criterion was presented based on the Cauchy-type criterion. In one sifting ... Keywords: BEMD, Magnetic data, Mode mixing, Stepwise stop criterion

Weisheng Hou; Zhijun Yang; Yongzhang Zhou; Liping Zhang; Wenlong Wu

2012-11-01T23:59:59.000Z

428

A type-based approach to separating protocol from application logic: a case study in hybrid computer programming  

Science Conference Proceedings (OSTI)

Numerous programming models have been introduced to allow programmers to utilize new accelerator-based architectures. While OpenCL and CUDA provide low-level access to accelerator programming, the task cries out for a higher-level abstraction. Of the ...

Geoffrey C. Hulette; Matthew J. Sottile; Allen D. Malony

2012-08-01T23:59:59.000Z

429

Creating a specific domain ontology for supporting R&D in the science-based sector - The case of biosensors  

Science Conference Proceedings (OSTI)

In science-based and technology-intensive projects, knowledge management challenges require a tentative and cautious review of the technological domains, as well as, venues to monitor and assess the way those domains evolve, emerge, mature, and decline. ... Keywords: Biosensor, Domain ontology, Engineering knowledge, Meta-modeling

Fragiskos A. Batzias; Christina G. Siontorou

2012-09-01T23:59:59.000Z

430

Agent-based algorithms for collaborative price search in electronic commerce: a case study and performance evaluation  

Science Conference Proceedings (OSTI)

This paper presents an architecture based on mobile agents to search for admissible prices of a specific item among many merchant sites over the Internet. To make the search more efficient, mobile agents collaborate by exchanging information. In this ... Keywords: collaboration, data retrieval, e-commerce, mobile agents, price search

Ali Chamam; Samuel Pierre; Roch H. Glitho

2008-08-01T23:59:59.000Z

431

Analysis of the optics of the Final Focus Test Beam using Lie algebra based techniques  

Science Conference Proceedings (OSTI)

This report discusses the analysis of the beam optics of the final focus test beam at the Stanford Linear Collider using Lie algebra. (LSP).

Roy, G.J.

1992-09-01T23:59:59.000Z

432

EXERGY BASED METHOD FOR SUSTAINABLE ENERGY UTILIZATION ANALYSIS OF A NET SHAPE MANUFACTURING SYSTEM.  

E-Print Network (OSTI)

??The approach advocated in this work implements energy/exergy analysis and indirectly an irreversibility evaluation to a continuous manufacturing process involving discrete net shape production of… (more)

SANKARA, JAYASANKAR

2005-01-01T23:59:59.000Z

433

Built-In Self-Test of Field Programmable Analog Arrays based on Transient Response Analysis  

Science Conference Proceedings (OSTI)

In this work a strategy for testing analog networks, known as Transient Response Analysis Method, is applied to test the Configurable Analog Blocks (CABs) of Field Programmable Analog Arrays (FPAAs). In this method the Circuit Under Test (CUT) is programmed ... Keywords: Analog built-in self-test, FPAA, Transient response analysis

T. R. Balen; J. V. Calvano; M. S. Lubaszewski; M. Renovell

2007-12-01T23:59:59.000Z

434

DUA-forensics: a fine-grained dependence analysis and instrumentation framework based on Soot  

Science Conference Proceedings (OSTI)

We describe DUA-Forensics, our open-source Java-bytecode program analysis and instrumentation system built on top of Soot. DUA-Forensics has been in development for more than six years and has supported multiple research projects on efficient monitoring, ... Keywords: Soot analysis framework, instrumentation, library model, program dependence

Raul Santelices, Yiji Zhang, Haipeng Cai, Siyuan Jiang

2013-06-01T23:59:59.000Z

435

Research on 2MW Wind Turbine in the Three Conditions of Modal Analysis Based on ANSYS  

Science Conference Proceedings (OSTI)

In order to prevent a phenomenon of the working wind tower turbine's dumping and fracture, we had done the modal analysis for wind power tower in this paper. by introducing FEA(Finite Element Analysis) methods, the finite element model, simulating actual ... Keywords: Wind turbine towers, Tower model, FEA, Displacement, Equivalent stress

Zhang Penglin; Cao Li

2012-10-01T23:59:59.000Z

436

A class of learning algorithms for principal component analysis based on time-oriented hierarchical method  

Science Conference Proceedings (OSTI)

This paper presents a class of algorithms for principal component analysis obtained by modification of a class of algorithms for principal subspace analysis (PSA) known as Plumbley's General Stochastic Approximation. Modification of the algorithms is ... Keywords: PCA, PSA, general stochastic approximation, neural networks, time hierarchy

Marko V. Jankovic

2006-04-01T23:59:59.000Z

437

Efficient cable arrangement in cable stayed bridges based on sensitivity analysis of aeroelastic behaviour  

Science Conference Proceedings (OSTI)

Construction of cable supported bridges has experienced a great impulse in the past decade. Bridges having more than 800m of span length were built in France and Japan and some bridges with span length of more than 1km are going to be built, such as ... Keywords: Aeroelastic analysis, Cable configuration, Cable stayed bridges, Efficient structural design, Sensitivity analysis

José Á. Jurado; Félix Nieto; Santiago Hernández; Alejandro Mosquera

2008-09-01T23:59:59.000Z

438

Aspect-based sentiment analysis of movie reviews on discussion boards  

Science Conference Proceedings (OSTI)

In this article, a method for automatic sentiment analysis of movie reviews is proposed, implemented and evaluated. In contrast to most studies that focus on determining only sentiment orientation (positive versus negative), the proposed method performs ... Keywords: discussion board, opinion mining, sentiment analysis

Tun Thura Thet; Jin-Cheon Na; Christopher S.G. Khoo

2010-12-01T23:59:59.000Z

439

Static Analysis of Object References in RMI-based Java Software Mariana Sharp  

E-Print Network (OSTI)

]. For simplicity, we exclude error-handling code (e.g., code related to exceptions thrown by remote invocations a remote reference to the object. Calls through this reference will be remote calls that are handled techniques for handling such flow of remote references. Any subsequent analysis (e.g., change impact analysis

Rountev, Atanas "Nasko"

440

Failure mode and effects analysis using a group-based evidential reasoning approach  

Science Conference Proceedings (OSTI)

Failure mode and effects analysis (FMEA) is a methodology to evaluate a system, design, process or service for possible ways in which failures (problems, errors, risks and concerns) can occur. It is a group decision function and cannot be done on an ... Keywords: Evidential reasoning approach, Failure mode and effects analysis, Minimax regret ranking, Uncertainty modeling

Kwai-Sang Chin; Ying-Ming Wang; Gary Ka Kwai Poon; Jian-Bo Yang

2009-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" 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

Improving partial parsing based on error-pattern analysis for a Korean grammar-checker  

Science Conference Proceedings (OSTI)

The main aim of this work is to make improvements to Mirine 2.2, a Korean grammar-checker that takes Korean language properties into account and to develop a system that satisfies user expectations. Particular attention is given to processing Korean ... Keywords: Korean grammar checker, error-pattern analysis, language, linguistic analysis, parsing, parsing triggering condition, partial parsing, text preprocessing

Mi-Young Kang; Aesun Yoon; Hyuk-Chul Kwon

2003-12-01T23:59:59.000Z

442

Preliminary analysis for adopting high pressure treatment: a simulation-based approach  

Science Conference Proceedings (OSTI)

We present in this paper a preliminary analysis of the simulation results in introducing high pressure treatment (HPT) into a meat production line. In particular, we first give a brief introduction to HPT and its applications. Next, we present a thorough ... Keywords: business process simulation, perishable products, production management, simulation analysis

Vassiliou Vassos; Menicou Michalis; Chartosia Niki; Christofi Stavros; Charalambides Marios

2011-12-01T23:59:59.000Z

443

Color texture analysis and classification: an agent approach based on partially self-avoiding deterministic walks  

Science Conference Proceedings (OSTI)

Recently, we have proposed a novel approach of texture analysis that has overcome most of the state-of-art methods. This method considers independent walkers, with a given memory, leaving from each pixel of an image. Each walker moves to one of its neighboring ... Keywords: color images, partially self-avoiding deterministic walks, texture analysis

André Ricardo Backes; Alexandre Souto Martinez; Odemir Martinez Bruno

2010-11-01T23:59:59.000Z

444

Using Adaptive Agent-Based Simulation Models to Assist Planners in Policy: The Case of Rent Control  

E-Print Network (OSTI)

: 2 Computer simulation modeling for policy development in planning has had difficulty gaining a consistent foothold. Reasons for this include bad experiences with large-scale, comprehensive models (e.g., Forrester, 1969) and the lack of theory that one can quantify (Batty, 1994). Batty (1994) has suggested that new types of computational models, based on the tenets of complexity theory (Bernard, under revision) may prove useful. One type of complexity theory model is an "adaptive agent based model" in which the actions, interactions, and adaptations of many autonomous, heterogeneous "agents" (households, firms, etc.) produce emergent, systemwide behavior. One can examine this emergent behavior using commonly employed metrics, but one can also garner a richer, more intuitive understanding of how the individual behavior of the agents self-organize to produce the entire system. Using this type of modeling for small-scale planning problems can both inform planning theorists and improve ...

Robert N. Bernard

1999-01-01T23:59:59.000Z

445

A New Hybrid Agent-Based Modeling & Simulation Decision Support System for Breast Cancer Data Analysis " presented at the ICICT  

E-Print Network (OSTI)

Abstract—In this paper, we present a novel technique of building hybrid decision support systems which integrates traditional decision support systems with agent based models for use in breast cancer analysis for better prediction and recommendation. Our system is based on using queries from data (converted to a standardized electronic template) to provide for simulation variables in an agent-based model. The goal is to develop an ICT tool to assist non-specialist biologist researcher users in performing analysis of large amounts of data by applying simple simulation techniques. To demonstrate the effectiveness of this novel decision support system, an extensive breast cancer data collection exercise was carried out with the support of Hospitals in a previously unexplored region. The collected data was subsequently integrated in an electronic medical record filing system for patients. We also demonstrate the application of agent based modeling and simulation techniques for building simulation models of tumor growth and treatment. Our proposed decision support system also provides a comprehensive query tool which facilitates the use of retrieved data in statistical tools 2 for subsequent interpretation and analysis. A I.

Amnah Siddiqa; Muaz Niazi; Farah Mustafa; Habib Bokhari; Amir Hussain; Noreen Akram; Shabnum Shaheen; Fouzia Ahmed; Sarah Iqbal

2009-01-01T23:59:59.000Z

446

An empirical analysis on the adoption of alternative fuel vehicles:The case of natural gas vehicles  

E-Print Network (OSTI)

in the United States and China. Energy Policy 34, 1299–1309.equilibrium analysis. Energy Policy 34, 975–985. Seisler,ARTICLE IN PRESS S. Yeh / Energy Policy 35 (2007) 5865–5875

Yeh, Sonia

2007-01-01T23:59:59.000Z

447

Incorporating the Price of Quality in Efficiency Analysis: The Case of Electricity Distrubution Regulation in the UK  

E-Print Network (OSTI)

Efficiency analysis of electricity distribution networks is often limited to technical or cost efficiency measures. However, some important non-tradable aspects of their service such as quality of service and network energy losses are generally...

Yu, William; Jamasb, Tooraj; Pollitt, Michael G.

448

Algorithm Recognition based on Demand-Driven Dataflow Analysis Christophe Alias  

E-Print Network (OSTI)

an error. ¡ Hardware-software codesign: if we recognize in the source program a piece of code for which we have a hardware implementation (e.g. as a coprocessor or an Intellectual Property component) we can remove the code and replace it by an activation of the hardware. Simple cases of algorithm recognition

Alias, Christophe

449

Examining the Strategic Alignment and Implementation Success of a KMS: A Subculture-Based Multilevel Analysis  

Science Conference Proceedings (OSTI)

Two important gaps exist in the information systems (IS) alignment research. First, there is scant research on the potential of organizational culture, and specifically subcultures to influence the strategic alignment of IS and organizations. Second, ... Keywords: case study, information systems implementation, knowledge management systems, organizational subcultures, strategic alignment

M. N. Ravishankar; Shan L. Pan; Dorothy E. Leidner

2011-03-01T23:59:59.000Z

450

Design and Analysis of New Gasification Apparatus based on the Standard Cone Calorimeter.  

E-Print Network (OSTI)

??A simple, inexpensive, safe version of pyrolysis apparatus is developed base on the standard cone calorimeter (ASTM E 1354). A controllable oxygen concentration (0% to… (more)

Liu, Xuan

2012-01-01T23:59:59.000Z

451

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

industry experts believe that new vehicle designs based on fuel cells, electricElectric Power Research Institute, Pricing for Success: Using Auto Industry Models to Review Electric Vehicle

Lipman, Timothy Edward

1999-01-01T23:59:59.000Z

452

Sampling-Window Based Approach for Fire Gas Analysis of Rigid Foams.  

E-Print Network (OSTI)

??A sampling-window based approach was developed to collect and analyze the gases evolved during fire performance testing using the cone calorimeter. For this purpose, a… (more)

Jones, Bryn

2013-01-01T23:59:59.000Z

453

D-STAG: a formalism for discourse analysis based on SDRT and using synchronous TAG  

Science Conference Proceedings (OSTI)

D-STAG is a new formalism for the automatic analysis of discourse. It computes hierarchical discourse structures annotated with discourse relations. They are compatible with those computed in SDRT. A discursive STAG grammar pairs up trees anchored by ...

Laurence Danlos

2009-07-01T23:59:59.000Z

454

A Satellite-Based Summer Convective Cloud Frequency Analysis over the Southeastern United States  

Science Conference Proceedings (OSTI)

A convective cloud (CC) analysis is performed over the southeastern United States (SEUS) during June, July, and August 2006 and 2007, using data from the Geostationary Operational Environmental Satellite (GOES) visible and infrared sensors as ...

Laci D. Gambill; John R. Mecikalski

2011-08-01T23:59:59.000Z

455

Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis  

E-Print Network (OSTI)

rate), and natural gas prices using sensitivity analysis.increase by 20%, natural gas prices increase by 20%, or$10/kW/month or natural gas prices are expected to increase

Bailey, Owen C.; Marnay, Chris

2005-01-01T23:59:59.000Z

456

U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis  

SciTech Connect

This report presents the state-level results of a spatial analysis effort calculating energy technical potential, reported in square kilometers of available land, megawatts of capacity, and gigawatt-hours of generation, for six different renewable technologies. For this analysis, the system specific power density (or equivalent), efficiency (capacity factor), and land-use constraints were identified for each technology using independent research, published research, and professional contacts. This report also presents technical potential findings from previous reports.

Lopez, A.; Roberts, B.; Heimiller, D.; Blair, N.; Porro, G.

2012-07-01T23:59:59.000Z

457

Integrating multi-criteria decision analysis for a GIS-based hazardous waste landfill sitting in Kurdistan Province, western Iran  

SciTech Connect

The evaluation of a hazardous waste disposal site is a complicated process because it requires data from diverse social and environmental fields. These data often involve processing of a significant amount of spatial information which can be used by GIS as an important tool for land use suitability analysis. This paper presents a multi-criteria decision analysis alongside with a geospatial analysis for the selection of hazardous waste landfill sites in Kurdistan Province, western Iran. The study employs a two-stage analysis to provide a spatial decision support system for hazardous waste management in a typically under developed region. The purpose of GIS was to perform an initial screening process to eliminate unsuitable land followed by utilization of a multi-criteria decision analysis (MCDA) to identify the most suitable sites using the information provided by the regional experts with reference to new chosen criteria. Using 21 exclusionary criteria, as input layers, masked maps were prepared. Creating various intermediate or analysis map layers a final overlay map was obtained representing areas for hazardous waste landfill sites. In order to evaluate different landfill sites produced by the overlaying a landfill suitability index system was developed representing cumulative effects of relative importance (weights) and suitability values of 14 non-exclusionary criteria including several criteria resulting from field observation. Using this suitability index 15 different sites were visited and based on the numerical evaluation provided by MCDA most suitable sites were determined.

Sharifi, Mozafar [Razi University Center for Environmental Studies, Faculty of Science, Baghabrisham 67149, Kermanshah (Iran, Islamic Republic of)], E-mail: sharifimozafar@gmail.com; Hadidi, Mosslem [Academic Center for Education, Culture and Research, Kermanshah (Iran, Islamic Republic of)], E-mail: hadidi_moslem@yahoo.com; Vessali, Elahe [Paradise Ave, Azad University, School of Agriculture, Shiraz (Iran, Islamic Republic of)], E-mail: elahe_vesali@yahoo.com; Mosstafakhani, Parasto [Razi University Centre for Environmental Studies, Faculty of Science, Baghabrisham 67149, Kermanshah (Iran, Islamic Republic of)], E-mail: mostafakhany2003@yahoo.com; Taheri, Kamal [Regional office of Water Resource Management, Zan Boulevard, Kermanshah (Iran, Islamic Republic of)], E-mail: taheri.kamal@gmail.com; Shahoie, Saber [Department of Soil Science, Faculty of Agriculture, Kurdistan University, University Boulevard, Sanandadj (Iran, Islamic Republic of)], E-mail: shahoei@yahoo.com; Khodamoradpour, Mehran [Regional office of Climatology, Sanandaj (Iran, Islamic Republic of)], E-mail: mehrankhodamorad@yahoo.com

2009-10-15T23:59:59.000Z

458

TITAN: Thunderstorm Identification, Tracking, Analysis, and Nowcasting—A Radar-based Methodology  

Science Conference Proceedings (OSTI)

A methodology is presented for the real-time automated identification, tracking, and short-term forecasting of thunderstorms based on volume-scan weather radar data. The emphasis is on the concepts upon which the methodology is based. A “storm” ...

Michael Dixon; Gerry Wiener

1993-12-01T23:59:59.000Z

459

A realism-based analysis of the OpenEHR entry model  

Science Conference Proceedings (OSTI)

We describe a proposal of improvement for clinical models of the OpenEHR standard according to the realism-based assumptions. In order to reach such proposal, we analyze OpenEHR entry model and realism-based ontologies created specifically for Medicine. ... Keywords: clinical models, knowledge representation, ontologies

André Queiroz Andrade; Mauricio Barcellos Almeida

2011-10-01T23:59:59.000Z

460

Modelling and analysis of power consumption for component-based embedded software  

Science Conference Proceedings (OSTI)

With the increasing complexity of the real-time embedded software, the power consumption is becoming a real challenge in the system designs. In this paper, for modelling the component-based embedded software, the interface automata is extended by adding ... Keywords: component-based design, embedded software design, interface automata, model checking, power-aware computing, real-time system

Hu Jun; Li Xuandong; Zheng Guoliang; Wang Chenghua

2006-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis base cases" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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461

Security Analysis and Implementation of JUIT—Image Based Authentication System Using Kerberos Protocol  

Science Conference Proceedings (OSTI)

Secure environments protect their resources against unauthorized access by enforcing access control mechanisms. So when increasing security is an issue text based passwords are not enough to counter such problems. The need for something more secure along ... Keywords: Image Based Authentication System, AJAX, MySQL, Diffie-Hellman key Exchange, Kerberos Protocol, Keystroke Logging, Tempest Attack, Shoulder Attack, Brute-force Attack

Nitin; Durg Singh Chauhan; Vivek Kumar Sehgal; Ankit Mahanot; Pallavi Singh; Sohit Ahuja; Utkarsh Shrivastava; Manisha Rana; Vineet Punjabi; Shivam Vinay; Nakul Sharma

2008-05-01T23:59:59.000Z

462

Description of novelty, novelty of description: a dialectic analysis of a web-based course  

Science Conference Proceedings (OSTI)

This article proposes a theoretical framework for the identification and classification of the various processes that constitute Web-based education. The framework is based on the following premises: (1) Education may be regarded as a corrective process, ... Keywords: computer-mediated communication, distance education and telelearning, evaluation of CAL systems, post-secondary education, teaching/learning strategies

Jan J. Perold; David J. F. Maree

2003-11-01T23:59:59.000Z

463

Core-based integrated sedimentologic, stratigraphic, and geochemical analysis of the oil shale bearing Green River Formation, Uinta Basin, Utah  

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

DOE Award No.: DE-FE0001243 DOE Award No.: DE-FE0001243 Topical Report CORE-BASED INTEGRATED SEDIMENTOLOGIC, STRATIGRAPHIC, AND GEOCHEMICAL ANALYSIS OF THE OIL SHALE BEARING GREEN RIVER FORMATION, UINTA BASIN, UTAH Submitted by: University of Utah Institute for Clean and Secure Energy 155 South 1452 East, Room 380 Salt Lake City, UT 84112 Prepared for: United States Department of Energy National Energy Technology Laboratory April 2011 Oil & Natural Gas Technology Office of Fossil Energy Core-based integrated sedimentologic, stratigraphic, and geochemical analysis of the oil shale bearing Green River Formation, Uinta Basin, Utah Topical Report Reporting Period: October 31, 2009 through March 31, 2011 Authors: Lauren P. Birgenheier, Energy and Geoscience Insitute, University of Utah

464

PSCAD/EMTDC-Based Modeling and Analysis of a Microgrid with Renewable Energy Sources  

E-Print Network (OSTI)

Microgrid is a relatively new concept which has gained significant attention recently due to the increasing penetration of distributed energy sources. It brings many benefits to the traditional distribution system. Couples of microgrid testbeds in the forms of either hardware facilities or software simulation systems have been developed to study microgrid issues in many institutes throughout the world. In the work presented in this thesis, a microgrid system model in PSCAD/EMTDC was developed. The proposed microgrid system includes fundamental power system component models, two renewable energy source models (wind and solar) and one energy storage source model. Different case studies were conducted. The results from the simulation case studies showed that the proposed microgrid system in PSCAD had satisfactory performance under different scenarios with renewable energy sources. The proposed microgrid system model can be used for further research on microgrid issues.

Chu, Zhengguo

2010-05-01T23:59:59.000Z

465

Generating Economic Development from a Wind Power Plant in Spanish Fork Canyon, Utah: A Case Study and Analysis of State-Level Economic Impacts  

Wind Powering America (EERE)

Generating Economic Development from a Wind Power Generating Economic Development from a Wind Power Project in Spanish Fork Canyon, Utah: A Case Study and Analysis of State-Level Economic Impacts Sandra Reategui Edwin R. Stafford, Ph.D. Cathy L. Hartman, Ph.D. Center for the Market Diffusion of Renewable Energy and Clean Technology Jon M. Huntsman School of Business Utah State University 3560 Old Main Hill Logan, Utah 84322-3560 January 2009 DOE/GO-102009-2760 Acknowledgements ....................................................................................................................... 1 Introduction ................................................................................................................................... 2 Report Overview ......................................................................................................................... 2

466

A Hybrid Sensitivity Analysis Approach for Agent-based Disease Spread Models  

Science Conference Proceedings (OSTI)

Agent-based models (ABM) have been widely deployed in different fields for studying the collective behavior of large numbers of interacting agents. Of particular interest lately is the application of agent-based and hybrid models to epidemiology, specifically Agent-based Disease Spread Models (ABDSM). Validation (one aspect of the means to achieve dependability) of ABDSM simulation models is extremely important. It ensures that the right model has been built and lends confidence to the use of that model to inform critical decisions. In this report, we describe our preliminary efforts in ABDSM validation by using hybrid model fusion technology.

Pullum, Laura L [ORNL; Cui, Xiaohui [New York Institute of Technology (NYIT)

2012-01-01T23:59:59.000Z

467

A corpus-based analysis of argument realization by preposition structures  

Science Conference Proceedings (OSTI)

This article studies the issue of argument realization by preposition structures. By examining the preposition structures that are marked as frame elements in FrameNet, the article attempts to give corpus-based attestations to the hypothesized link between ...

Qibo Zhu

2009-07-01T23:59:59.000Z

468

A pressure-based analysis of the historical western North Pacific tropical cyclone intensity record  

Science Conference Proceedings (OSTI)

The western North Pacific Ocean is the most active tropical cyclone (TC) basin. However, recent studies are not conclusive on whether the TC activity is increasing or decreasing, at least when calculations are based on maximum sustained winds. For ...

Kenneth R. Knapp; John A. Knaff; Charles R. Sampson; Gustavo M. Riggio; Adam D. Schnapp

469

Structure analysis based parking slot marking recognition for semi-automatic parking system  

Science Conference Proceedings (OSTI)

Semi-automatic parking system is a driver convenience system automating steering control required during parking operation. This paper proposes novel monocular-vision based target parking-slot recognition by recognizing parking-slot markings when driver ...

Ho Gi Jung; Dong Suk Kim; Pal Joo Yoon; Jaihie Kim

2006-08-01T23:59:59.000Z

470

Field-based coordination of mobile intelligent agents: an evolutionary game theoretic analysis  

Science Conference Proceedings (OSTI)

The paper deals with field-based coordination of agent team in which the continental divide game is applied as a coordination mechanism. The agent team consists of self-interested mobile intelligent agents whose behaviour is modelled using coordination ...

Krunoslav Trzec; Ignac Lovrek

2007-09-01T23:59:59.000Z

471

A Pressure-Based Analysis of the Historical Western North Pacific Tropical Cyclone Intensity Record  

Science Conference Proceedings (OSTI)

The western North Pacific Ocean is the most active tropical cyclone (TC) basin. However, recent studies are not conclusive on whether the TC activity is increasing or decreasing, at least when calculations are based on maximum sustained winds. For ...

Kenneth R. Knapp; John A. Knaff; Charles R. Sampson; Gustavo M. Riggio; Adam D. Schnapp

2013-08-01T23:59:59.000Z

472

Normalization and Statistical Analysis of Multiplexed Bead-Based Immunoassay Data Using Mixed-Effects Modeling  

E-Print Network (OSTI)

Multiplexed bead-based flow cytometric immunoassays are a powerful experimental tool for investigating cellular communication networks, yet their widespread adoption is limited in part by challenges in robust quantitative ...

Clarke, David C.

473

A game theory-based analysis of search engine non-neutral behavior  

E-Print Network (OSTI)

facilities" doctrine [3] and stresses that popular search engines, Google for instance , act as a "bottleneck. As regards the potential competitive harm from search bias, one argument is based on the "essential

Paris-Sud XI, Université de

474

Roof-top solar energy potential under performance-based building energy codes: The case of Spain  

Science Conference Proceedings (OSTI)

The quantification at regional level of the amount of energy (for thermal uses and for electricity) that can be generated by using solar systems in buildings is hindered by the availability of data for roof area estimation. In this note, we build on an existing geo-referenced method for determining available roof area for solar facilities in Spain to produce a quantitative picture of the likely limits of roof-top solar energy. The installation of solar hot water systems (SHWS) and photovoltaic systems (PV) is considered. After satisfying up to 70% (if possible) of the service hot water demand in every municipality, PV systems are installed in the remaining roof area. Results show that, applying this performance-based criterion, SHWS would contribute up to 1662 ktoe/y of primary energy (or 68.5% of the total thermal-energy demand for service hot water), while PV systems would provide 10 T W h/y of electricity (or 4.0% of the total electricity demand). (author)

Izquierdo, Salvador; Montanes, Carlos; Dopazo, Cesar; Fueyo, Norberto [Fluid Mechanics Group, University of Zaragoza and LITEC (CSIC), Maria de Luna 3, 50018 Zaragoza (Spain)

2011-01-15T23:59:59.000Z

475

Data Analysis and Visualization for Electric Microgrids: A Case Study on the FortZED RDSI Microgrid  

Science Conference Proceedings (OSTI)

Electric micro grids generate a significant amount of measurement data by virtue of the constituent distributed smaller capacity assets. Data reduction for performance quantification and visualization techniques for micro grids is presented here. The ... Keywords: Data analysis, data reduction, enhanced situational awareness, GUI, microgrids, peak load reduction, reliability, visualization

Mayank Panwar, Daniel Zimmerle, Siddharth Suryanarayanan

2013-04-01T23:59:59.000Z

476

Archaeological data visualization in VR: analysis of lamp finds at the great temple of petra, a case study  

Science Conference Proceedings (OSTI)

We present the results of an evaluation of the ARCHAVE system, an immersive virtual reality environment for archaeological research. ARCHAVE is implemented in a Cave. The evaluation studied researchers analyzing lamp and coin finds throughout the excavation ... Keywords: archaeological data analysis, immersive virtual reality interfaces, scientific visualization

Daniel Acevedo; Eileen Vote; David H. Laidlaw; Martha S. Joukowsky

2001-10-01T23:59:59.000Z

477

Mapping technological innovations through patent analysis: a case study of foreign multinationals and indigenous firms in China  

Science Conference Proceedings (OSTI)

This study attempts to expand the work on patenting activities of China. The characteristics of foreign multinationals and indigenous entities' patenting activities in the US patent system are examined in our analysis. This study also attempts to model ... Keywords: China, Foreign multinationals, Growth, Indigenous entities, Patents, Technological innovations

Chan-Yuan Wong; Xiao-Shan Yap

2012-06-01T23:59:59.000Z

478

Simulation modeling for pandemic decision making: A case study with bi-criteria analysis on school closures  

Science Conference Proceedings (OSTI)

Pandemic influenza continues to be a national and international public health concern, and has received significant attention worldwide with the A/H1N1 influenza outbreak in 2009. Many countries, including the United States, have developed preparedness ... Keywords: Decision ana