Sample records for base case analysis

  1. 1980 Base case and feasibility analysis

    SciTech Connect (OSTI)

    Not Available

    1993-03-01T23:59:59.000Z

    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.

  2. 1980 Base case and feasibility analysis

    SciTech Connect (OSTI)

    none,

    1993-03-01T23:59:59.000Z

    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.

  3. A Conceptual Framework for Semantic Case-based Safety Analysis Olawande Daramola, Tor Stlhane

    E-Print Network [OSTI]

    .biffl}@tuwien.ac.at Abstract Hazard and Operability (HAZOP) Analysis and Fail- ure Mode and Effect Analysis (FMEA) are among-based framework for safety analy- sis, which facilitates the reuse of previous HAZOP and FMEA experiences in order application. Key words: Safety analysis, HAZOP, FMEA, ontology, requirements, case-based reasoning, natural

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

    SciTech Connect (OSTI)

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

    1997-10-01T23:59:59.000Z

    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.

  5. Signal Analysis of Automotive Engine Spark Ignition System using Case-Based Reasoning (CBR) and Case-based Maintenance (CBM)

    SciTech Connect (OSTI)

    Huang, H.; Vong, C. M. [Department of Computer and Information Science, FST, University of Macau (China); Wong, P. K. [Department of Electromechanical Engineering, FST, University of Macau (China)

    2010-05-21T23:59:59.000Z

    With the development of modern technology, modern vehicles adopt electronic control system for injection and ignition. In traditional way, whenever there is any malfunctioning in an automotive engine, an automotive mechanic usually performs a diagnosis in the ignition system of the engine to check any exceptional symptoms. In this paper, we present a case-based reasoning (CBR) approach to help solve human diagnosis problem. Nevertheless, one drawback of CBR system is that the case library will be expanded gradually after repeatedly running the system, which may cause inaccuracy and longer time for the CBR retrieval. To tackle this problem, case-based maintenance (CBM) framework is employed so that the case library of the CBR system will be compressed by clustering to produce a set of representative cases. As a result, the performance (in retrieval accuracy and time) of the whole CBR system can be improved.

  6. Human-robot interactions: model-based risk analysis and safety case construction

    E-Print Network [OSTI]

    Guiochet, Jérémie

    Human-robot interactions: model-based risk analysis and safety case construction Quynh Anh DO HOANG potential threats related to physical human-robot interactions and to assess the associated risks that might affect safety and dependability. Because of the complexity of human-robot interactions, rigorous

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

    SciTech Connect (OSTI)

    Brent Dixon

    2012-09-01T23:59:59.000Z

    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.

  8. Flexibility in Design, Outcomes and Analysis in “Evidence- Based” Drug Prevention Research: The Case of the Midwestern Prevention Project

    E-Print Network [OSTI]

    Gorman, Dennis M.

    2013-11-22T23:59:59.000Z

    , column 2]. h Dwyer et al. [20] used a number of different models in their analysis and concluded that these showed “no evidence of an effect on alcohol use” [20, p. 781]. Hence “?” appears in the table. i Data for the 1-year follow-up are from Pentz et...Citation: Gorman DM. Flexibility in Design, Outcomes and Analysis in “Evidence-Based” Drug Prevention Research: The Case of the Midwestern Prevention Project. J Addiction Prevention. 2013;1(3): 8. J Addiction Prevention November 2013 Vol.:1, Issue...

  9. Analysis of User Trajectories Based on Data Distribution and State Transition: a Case Study with a Massively Multiplayer Online Game Angel Love Online

    E-Print Network [OSTI]

    Thawonmas, Ruck

    Analysis of User Trajectories Based on Data Distribution and State Transition: a Case Study in two steps: the first step based on data distribution and the second step based on state transition study where our approach is applied to real trajectory data obtained from Angel Love Online, a massively

  10. Reliability-based casing design

    SciTech Connect (OSTI)

    Maes, M.A. [Univ. of Calgary, Alberta (Canada). Civil Engineering Dept.; Gulati, K.C.; Johnson, R.C. [Mobil Research and Development Corp., Dallas, TX (United States); McKenna, D.L. [Mobil Producing Nigeria, Lagos (Nigeria); Brand, P.R.; Lewis, D.B. [Mobil E and P Technical Center, Dallas, TX (United States)

    1995-06-01T23:59:59.000Z

    The present paper describes the development of reliability-based design criteria for oil and/or gas well casing/tubing. The approach is based on the fundamental principles of limit state design. Limit states for tubulars are discussed and specific techniques for the stochastic modeling of loading and resistance variables are described. Zonation methods and calibration techniques are developed which are geared specifically to the characteristic tubular design for both hydrocarbon drilling and production applications. The application of quantitative risk analysis to the development of risk-consistent design criteria is shown to be a major and necessary step forward in achieving more economic tubular design.

  11. The "Pinch Analysis": Special Cases 

    E-Print Network [OSTI]

    Bitowft, B.; Tripathi, P.

    1989-01-01T23:59:59.000Z

    A method for determining the efficiency and scope for improvement of a process plant's energy consumption, based on pinch technology, is reviewed. While this is a generic approach that applies in most cases, there are certain cases where the results...

  12. Production Management Decision Analysis Using AI-Based Proxy Modeling of Reservoir Simulations A Look-Back Case Study

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE 170664 Production Management Decision Analysis Using AI-Based Proxy Modeling of Reservoir in the Middle East. This prolific mature asset that includes more than 160 production wells has been the subject of peripheral water injection for many years to maintain pressure and help displace oil toward the production

  13. Studying Aviation Incidents by Agent-Based Simulation and Analysis A Case Study on a Runway Incursion Incident

    E-Print Network [OSTI]

    Bosse, Tibor

    in the analysis of accidents and incidents in aviation: even if detailed flight data from the `black box this approach mainly focuses on the analysis of existing accidents (also called accident analysis), the current paper also addresses analysis of potential future accidents (called risk analysis). This is done

  14. Measurement-Based Worst-Case Execution Time Analysis* Ingomar Wenzel, Raimund Kirner, Bernhard Rieder, Peter Puschner

    E-Print Network [OSTI]

    [1] cannot keep pace with the rapidly increasing analysis complexity of modern control systems Control Systems" (MoDECS). Abstract In the last years the number of electronic control systems has and more powerful and complex computer hardware. Due to these advances in control systems engineering new

  15. The Hierarchical Case-Based Diagnosis

    E-Print Network [OSTI]

    Nahid Karchenasse; Jean-michel Roger; Francis Sevila

    1997-01-01T23:59:59.000Z

    In this paper we propose a methodology to aid machine diagnosis based on the Case-Based Reasoning (CBR) techniques, called Hierarchical Case-Based Diagnosis (HCBD). Our method is a resample of the interpretative CBR which tries to interpret a new situation using interpretations of old situations

  16. Semantic Social Network Analysis, a concrete case

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Semantic Social Network Analysis, a concrete case Guillaume Erétéo, Orange Labs, guillaume permitting a high degree of interaction between participants, and social network analysis (SNA) seeks) shared by the members of these networks. These enriched representations of social networks, combined

  17. Symbolic Test Selection Based on Approximate Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    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

  18. A comparison of geostatistically based inverse techniques for use in performance assessment analysis at the Waste Isolation Pilot Plant Site: Results from Test Case No. 1

    SciTech Connect (OSTI)

    Zimmerman, D.A. [GRAM, Inc., Albuquerque, NM (United States); Gallegos, D.P. [Sandia National Labs., Albuquerque, NM (United States)

    1993-10-01T23:59:59.000Z

    The groundwater flow pathway in the Culebra Dolomite aquifer at the Waste Isolation Pilot Plant (WIPP) has been identified as a potentially important pathway for radionuclide migration to the accessible environment. Consequently, uncertainties in the models used to describe flow and transport in the Culebra need to be addressed. A ``Geostatistics Test Problem`` is being developed to evaluate a number of inverse techniques that may be used for flow calculations in the WIPP performance assessment (PA). The Test Problem is actually a series of test cases, each being developed as a highly complex synthetic data set; the intent is for the ensemble of these data sets to span the range of possible conceptual models of groundwater flow at the WIPP site. The Test Problem analysis approach is to use a comparison of the probabilistic groundwater travel time (GWTT) estimates produced by each technique as the basis for the evaluation. Participants are given observations of head and transmissivity (possibly including measurement error) or other information such as drawdowns from pumping wells, and are asked to develop stochastic models of groundwater flow for the synthetic system. Cumulative distribution functions (CDFs) of groundwater flow (computed via particle tracking) are constructed using the head and transmissivity data generated through the application of each technique; one semi-analytical method generates the CDFs of groundwater flow directly. This paper describes the results from Test Case No. 1.

  19. Final base case community analysis: Indian Springs, Nevada for the Clark County socioeconomic impact assessment of the proposed high- level nuclear waste repository at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    NONE

    1992-06-18T23:59:59.000Z

    This document provides a base case description of the rural Clark County community of Indian Springs in anticipation of change associated with the proposed high-level nuclear waste repository at Yucca Mountain. As the community closest to the proposed site, Indian Springs may be seen by site characterization workers, as well as workers associated with later repository phases, as a logical place to live. This report develops and updates information relating to a broad spectrum of socioeconomic variables, thereby providing a `snapshot` or `base case` look at Indian Springs in early 1992. With this as a background, future repository-related developments may be analytically separated from changes brought about by other factors, thus allowing for the assessment of the magnitude of local changes associated with the proposed repository. Given the size of the community, changes that may be considered small in an absolute sense may have relatively large impacts at the local level. Indian Springs is, in many respects, a unique community and a community of contrasts. An unincorporated town, it is a small yet important enclave of workers on large federal projects and home to employees of small- scale businesses and services. It is a rural community, but it is also close to the urbanized Las Vega Valley. It is a desert community, but has good water resources. It is on flat terrain, but it is located within 20 miles of the tallest mountains in Nevada. It is a town in which various interest groups diverge on issues of local importance, but in a sense of community remains an important feature of life. Finally, it has a sociodemographic history of both surface transience and underlying stability. If local land becomes available, Indian Springs has some room for growth but must first consider the historical effects of growth on the town and its desired direction for the future.

  20. Traversal, Case Analysis, and Lowering for C++ Program Analysis

    E-Print Network [OSTI]

    Wagner, Luke A.

    2010-01-14T23:59:59.000Z

    ++. This extension, named Filter, assists the tool builder in traversal, case analysis, and lowering of the data structure representing C++ programs. Comparisons described in the thesis show a 2-4x code reduction when solving basic problems (e.g., searching for uses...

  1. Geographically Based Hydrogen Demand and Infrastructure Analysis...

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

    Analysis Geographically Based Hydrogen Demand and Infrastructure Analysis Presentation by NREL's Margo Melendez at the 2010 - 2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles...

  2. Electricity Case: Statistical Analysis of Electric Power Outages

    E-Print Network [OSTI]

    Wang, Hai

    Electricity Case: Statistical Analysis of Electric Power Outages CREATE Report Jeffrey S. Simonoff: Statistical Analysis of Electric Power Outages CREATE Report July 26, 2005 Jeffrey S. Simonoff (NYU of the United States Department of Homeland Security. #12;0 Electricity Case, Report 3 Electricity Case

  3. The opportunistic replacement problem: analysis and case studies

    E-Print Network [OSTI]

    Torgny Almgren

    2009-01-22T23:59:59.000Z

    Jan 22, 2009 ... The opportunistic replacement problem: analysis and case studies. Torgny Almgren (Torgny.Almgren ***at*** volvo.com) Niclas Andreasson ...

  4. Identification and Epidemiological Analysis of Ciguatera Cases in Puerto Rico

    E-Print Network [OSTI]

    Identification and Epidemiological Analysis of Ciguatera Cases in Puerto Rico G. ESCALONA de MOn hospitals in five areas of Puerto Rico from 1980 to 1982 disclosed 122 apparent ciguatera cases involving- tions of ciguatera cases in Puerto Rico. The results of this study complement available epidemiological

  5. Two Case Studies on Vision-based Moving Objects Measurement

    E-Print Network [OSTI]

    Zhang, Ji

    2012-10-19T23:59:59.000Z

    In this thesis, we presented two case studies on vision-based moving objects measurement. In the first case, we used a monocular camera to perform ego-motion estimation for a robot in an urban area. We developed the algorithm based on vertical line...

  6. CASE ANALYSIS FARM AGRICULTURE MCAHNERY INFORMATIZATION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wang1 , Weidong Zhuang 1 1 Institute of Engineering, Heilongjiang August First Land Reclamation of Engineering, Heilongjiang August First Land Reclamation University, Daqing, 163319, Heilongjiang Province, P August First Land Reclamation University Digital Agriculture Project Team carried out case studies

  7. Chapter 11. Community analysis-based methods

    SciTech Connect (OSTI)

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

    2010-05-01T23:59:59.000Z

    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.

  8. A Simplified Residential Base-Case Model

    E-Print Network [OSTI]

    Do, S. L.; Choi, J. H.; Haberl, J. S.

    2013-01-01T23:59:59.000Z

    This study was for the DOE-2.1e program to develop a simplified residential ASHP house model in Houston, Texas. The house characteristics were based on the standard reference design and requirements as defined in Chapter 4 of the 2009 IECC...

  9. Case-Analysis for Rippling and Inductive Proof 

    E-Print Network [OSTI]

    Bundy, Alan; Dixon, Lucas; Johansson, Moa

    2010-01-01T23:59:59.000Z

    Rippling is a heuristic used to guide rewriting and is typically used for inductive theorem proving. We introduce a method to support case-analysis within rippling. Like earlier work, this allows goals containing if-statements to be proved...

  10. Analysis of Academic Ties: A Case Study of Mathematics Genealogy

    E-Print Network [OSTI]

    Gunes, Mehmet Hadi

    Analysis of Academic Ties: A Case Study of Mathematics Genealogy Engin Arslan, Mehmet Hadi Gunes the Mathematics Genealogy Project data. Additionally, using university and nation information of mathematicians over the years. Keywords - Academic ties, mathematics genealogy, social network. 1. INTRODUCTION

  11. Worst-case distribution analysis of stochastic programs

    E-Print Network [OSTI]

    2004-09-23T23:59:59.000Z

    (2000), 54-70 [in Russian]. [7] Yu.S. Kan and A.I. Kibzun, Sensitivity analysis of worst-case distribution for probability optimization problems, In Probabilistic ...

  12. A Web-based Case-based Learning Environment Use in the Didactics of Informatics

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    A Web-based Case-based Learning Environment ­ Use in the Didactics of Informatics Maria Boubouka@di.uoa.gr Abstract. The present dissertation examines the didactic utilization of cases, specifically through digital and an investigation for the specification of CASTLE in Didactics are presented. Keywords. Cases, Problems, Learning

  13. Improved Efficiency of Oil Well Drilling through Case Based Reasoning

    E-Print Network [OSTI]

    Aamodt, Agnar

    to give the operator valuable advise on how to go about solving the new case. Introduction Drilling of oil1 Improved Efficiency of Oil Well Drilling through Case Based Reasoning Paal Skalle Norwegian University of Science and Technology, Dept. of Petroleum Technology, N-7491, Trondheim, Norway (pskalle

  14. ARM - Field Campaign - CASES Data Analysis

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032)8Li (59AJ76)ARM2,govCampaignsAircraftCloudgovCampaignsCASES Data

  15. ELECTRICITY CASE: RISK ANALYSIS OF INFRASTRUCTURE SYSTEMS-DIFFERENT

    E-Print Network [OSTI]

    Wang, Hai

    of infrastructure systems. The discussion is applied to electric power delivery systems, i.e. transmissionELECTRICITY CASE: RISK ANALYSIS OF INFRASTRUCTURE SYSTEMS-DIFFERENT APPROACHES FOR RISK ANALYSIS OF ELECTRIC POWER SYSTEMS Holmgren, A. CREATE REPORT Under FEMA Grant EMW-2004-GR-0112 May 31, 2005 Center

  16. Worst-case Structural Analysis Qingnan Zhou

    E-Print Network [OSTI]

    Zorin, Denis

    present a method that would identify structural problems in objects designed for 3D printing based and experimentally and demon- strate that it has good predictive power for a number of diverse 3D printed shapes. CR printing. The cost of 3D printing has come down significantly over the past few years, and the industry

  17. Model-Based Dependability Analysis of Programmable Drug Infusion Pumps

    E-Print Network [OSTI]

    Sankaranarayanan, Sriram

    Model-Based Dependability Analysis of Programmable Drug Infusion Pumps Sriram Sankaranarayanan.lastname@colorado.edu Abstract. Infusion pumps are commonly used in home/hospital care to inject drugs into a patient a case-study involving an infusion pump used to manage pain through the infusion of analgesic drugs

  18. Risk-based modelling of surface water quality: a case study of the Charles River, Massachusetts

    E-Print Network [OSTI]

    Wagener, Thorsten

    : Water quality; Risk; Monte Carlo; Sensitivity analysis; Eutrophication 1. Introduction 1.1. Motivation recognised in the development of some decision-support tools, for example, QUAL2E- UNCAS (Brown and BarnwellRisk-based modelling of surface water quality: a case study of the Charles River, Massachusetts

  19. Trace analysis of atmospheric organic bases

    E-Print Network [OSTI]

    Clark, Dwayne C.

    1984-01-01T23:59:59.000Z

    chromatographic fractions for NS analyses ( 121) and its use as a thin layer chromatography (TLC) adsorbent ( 122). The National Institute of Occupational Safety and Health (NIOSH) recommends its use in the analysis of many industrial vapors ( 113 - 120... analysis of atmospheric organic bases were investigated; the study included (1) the analysis of submarine charcoal filter bed samples for nitrogen bases and (2) the use of metallic tetraphenylporphines (TPP) as specific adsorbents for atmospheric...

  20. WorstCase Analysis of Weber's GCD Algorithm

    E-Print Network [OSTI]

    Lavault, Christian

    Worst­Case Analysis of Weber's GCD Algorithm Christian Lavault a;1 , S. Mohamed Sedjelmaci a a LIPN, Universit'e Paris­Nord, 93430 Villetaneuse, France Abstract Recently, Ken Weber introduced an algorithm for N(k), the maximal number of iterations in the loop of Weber's GCD algorithm. Key words: Integer

  1. WorstCase Analysis of Weber's GCD Algorithm

    E-Print Network [OSTI]

    Boyer, Edmond

    Worst­Case Analysis of Weber's GCD Algorithm Christian Lavault and S. Mohamed Sedjelmaci LIPN, CNRS UPRES-A 7030 Universit´e Paris 13, F-93430 Villetaneuse Abstract Recently, Ken Weber introduced provide a formula for N(k), the maximal number of iterations in the loop of Weber's GCD algorithm

  2. Beth Brockett SOIL 502 Soil Quality Analysis -Chemistry Case Study

    E-Print Network [OSTI]

    Beth Brockett SOIL 502 Soil Quality Analysis - Chemistry Case Study "Sustainability Street are represented by the Podzolic Order, and more specifically form part of the Bose Soil Management Group) with a limited decomposer community dominated by fungi. Any remnants of native soil at the Sustainability Street

  3. Agent-Based Modeling and Simulation for Hydrogen Transition Analysis...

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

    Agent-Based Modeling and Simulation for Hydrogen Transition Analysis Agent-Based Modeling and Simulation for Hydrogen Transition Analysis Presentation on Agent-Based Modeling and...

  4. A case-based reasoning, 578 case-based image segmentation, 584-

    E-Print Network [OSTI]

    Triantaphyllou, Evangelos

    probe data bootstrap 0.632 rule, 750-751 credit rating , 111-116 business process, 545 credit scoring-90 Enterprise Miner, 14, 15, 16 evolutionary neural network, 209-218 F factor analysis, 397 fault detection, 4, 57, 61, 62, 63, 94 fault diagnosis, 4, 63, 73, 95, 463 feature extraction, 588-591, feature selection

  5. Well casing-based geophysical sensor apparatus, system and method

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2010-03-09T23:59:59.000Z

    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.

  6. Geographically-Based Infrastructure Analysis

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdfTechnologiesNATIONAL003Not MeasurementDeepGeographically Based

  7. Market analysis methodology: a utility case study. Final report

    SciTech Connect (OSTI)

    Diamond, M.

    1985-02-01T23:59:59.000Z

    The case study described in this report was conducted as part of EPRI Project RP1634 - Analytic Methods Used Outside the Electric Utility Industry. The primary objectives of the project were to: (1) explore planning and analysis techniques in use outside the utility industry, (2) identify those techniques which show promise for addressing utility issues, and (3) test them in actual utility situations to understand their real value, and the issues associated with adapting them to utility use.

  8. Fourier-Based Spectral Analysis with Adaptive Resolution

    E-Print Network [OSTI]

    Andrey Khilko

    2008-06-04T23:59:59.000Z

    Despite being the most popular methods of data analysis, Fourier-based techniques suffer from the problem of static resolution that is currently believed to be a fundamental limitation of the Fourier Transform. Although alternative solutions overcome this limitation, none provide the simplicity, versatility, and convenience of the Fourier analysis. The lack of convenience often prevents these alternatives from replacing classical spectral methods - even in applications that suffer from the limitation of static resolution. This work demonstrates that, contrary to the generally accepted belief, the Fourier Transform can be generalized to the case of adaptive resolution. The generalized transform provides backward compatibility with classical spectral techniques and introduces minimal computational overhead.

  9. Micro Level Data Analysis in Continuous Commissioning®: A Case Study

    E-Print Network [OSTI]

    Khan, S.; Bible, M.

    2012-01-01T23:59:59.000Z

    E:\\ICEBO 2012\\1FINAL PAPERS\\22 Anderson CC ICEBO Paper (REV 02 8.10.12).docx Micro Level Data Analysis in Continuous Commissioning?: A Case Study Saleem Khan1 and Mitch Bible1 1 Texas Energy Engineering Services, Inc. 1301 Capital of Texas... of sequential steps such as conducting system measurements, developing a CC? plan, implementing CC? measures, and documenting energy savings and E:\\ICEBO 2012\\1FINAL PAPERS\\22 Anderson CC ICEBO Paper (REV 02 8.10.12).docx comfort improvements (Claridge et al...

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

    SciTech Connect (OSTI)

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

    1980-03-01T23:59:59.000Z

    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).

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

    E-Print Network [OSTI]

    Robinson, J.

    2010-01-01T23:59:59.000Z

    terns on safety and accident analysis since t h i s i s theACCIDENT ANALYSIS ACCIDENT, TRANSPORTATION SAFETY ANALYSISInformation Center Data Base RISK HAZARDS ANALYSIS ACCIDENT

  12. Evaluation of a case-based Reasoning Energy Prediction Tool for Commercial Buildings

    E-Print Network [OSTI]

    Monfet, D.; Arkhipova, E.; Choiniere, D.

    2013-01-01T23:59:59.000Z

    demand of the building such as whole building energy simulation, regression analysis, and black-box models (e.g., artificial neural networks). In this paper, Case-Based Reasoning (CBR), a machine-learning artificial intelligence technique, is used... area of 5300 m2 (57 050 ft2) and consists of two main sections of roughly equal size: (1) offices and conference rooms and (2) testing laboratories. The HVAC equipment consists of seven air handling units served by an air cooled chiller, ice...

  13. Optimization Online - Convergence analysis of sampling-based ...

    E-Print Network [OSTI]

    Vincent Guigues

    2014-08-19T23:59:59.000Z

    Aug 19, 2014 ... Convergence analysis of sampling-based decomposition methods for risk-averse multistage stochastic convex programs.

  14. Optimization Online - Convergence Analysis of Primal-Dual Based ...

    E-Print Network [OSTI]

    Wenyi Tian

    2014-09-24T23:59:59.000Z

    Sep 24, 2014 ... Convergence Analysis of Primal-Dual Based Methods for Total Variation Minimization with Finite Element Approximation.

  15. Feature-based Analysis of Plasma-based Particle Acceleration Data

    E-Print Network [OSTI]

    Feature-based Analysis of Plasma-based Particle Acceleration Data Oliver Rübel 1 , Cameron G;1 Feature-based Analysis of Plasma-based Particle Acceleration Data Oliver R¨ubel, Cameron G.R. Geddes, Min Chen, Estelle Cormier-Michel, and E. Wes Bethel Abstract Plasma-based particle accelerators can produce

  16. Bismuth-based electrochemical stripping analysis

    DOE Patents [OSTI]

    Wang, Joseph

    2004-01-27T23:59:59.000Z

    Method and apparatus for trace metal detection and analysis using bismuth-coated electrodes and electrochemical stripping analysis. Both anodic stripping voltammetry and adsorptive stripping analysis may be employed.

  17. Prioritizing JUnit Test Cases: An Empirical Assessment and Cost-Benefits Analysis

    E-Print Network [OSTI]

    Rothermel, Gregg

    Prioritizing JUnit Test Cases: An Empirical Assessment and Cost-Benefits Analysis Hyunsook Do - Lincoln {dohy,grother,akinneer}@cse.unl.edu August 2, 2005 Abstract Test case prioritization provides a way to run test cases with the highest priority earliest. Numerous empirical studies have shown

  18. Geographically-Based Infrastructure Analysis | Department of...

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

    Infrastructure Analysis given by Keith Parks of the National Renewable Energy Laboratory during the DOE Hydrogen Transition Analysis Workshop on January 26,...

  19. Introduction Nonlinear Fourier Analysis Ocean Internal Waves KdV Hidden Solitons Closure Two case studies in nonlinear Fourier analysis

    E-Print Network [OSTI]

    Christov, Ivan C.

    Introduction Nonlinear Fourier Analysis Ocean Internal Waves KdV Hidden Solitons Closure Two case studies in nonlinear Fourier analysis: Ocean internal solitary waves and the Zabusky­Kruskal solitons Ivan Engineering, The University of Sheffield September 10, 2010 Ivan C. Christov (NU) Nonlinear Fourier Analysis

  20. Introduction Nonlinear Fourier Analysis Ocean Internal Waves KdV Hidden Solitons Closure Two case studies in nonlinear Fourier analysis

    E-Print Network [OSTI]

    Christov, Ivan C.

    Introduction Nonlinear Fourier Analysis Ocean Internal Waves KdV Hidden Solitons Closure Two case studies in nonlinear Fourier analysis: Ocean internal solitary waves and the Zabusky­Kruskal solitons Ivan Ivan C. Christov (PU) Nonlinear Fourier Analysis INRNE Seminar 1 / 26 #12;Introduction Nonlinear

  1. GIS-based wind farm site selection: Evaluating the case for New York State

    E-Print Network [OSTI]

    GIS-based wind farm site selection: Evaluating the case for New York State E-mail: rv2216@columbia Conference, Saratoga Springs, NY, November 15, 2011 #12;Where to build a 50 MW wind farm? 1. What sites.clca.columbia.edu GIS-based wind farm site selection: evaluating the case for New York State ­ NEARC GIS conference 2011

  2. Asset-based poverty analysis in rural Bangladesh: A comparison of principal component analysis and

    E-Print Network [OSTI]

    Mound, Jon

    1 Asset-based poverty analysis in rural Bangladesh: A comparison of principal component analysis not be regarded as the views of SRI or The University of Leeds. #12;3 Asset-based poverty analysis in rural The trend towards multi-dimensional poverty assessment ..................... 5 Principal component analysis

  3. Analysis of Energy Efficiency Program Impacts Based on Program...

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

    Analysis of Energy Efficiency Program Impacts Based on Program Spending May 2015 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S....

  4. Cloud-Based Statistical Analysis from Users' Perspective Botong Huang

    E-Print Network [OSTI]

    Yang, Jun

    efficient statistical analysis programs requires tremendous expertise and effort. Most statisticians would much prefer programming in languages familiar to them, such as R and MATLAB, Copyright 2014 IEEECumulon: Cloud-Based Statistical Analysis from Users' Perspective Botong Huang Department

  5. Agent-Based Modeling and Simulation for Hydrogen Transition Analysis

    Broader source: Energy.gov [DOE]

    Presentation on Agent-Based Modeling and Simulation for Hydrogen Transition Analysis given by Marianne Mintz of ANL during the DOE Hydrogen Transition Analysis Workshop on January 26, 2006.

  6. Multiresolution analysis on zero-dimensional Abelian groups and wavelets bases

    SciTech Connect (OSTI)

    Lukomskii, Sergei F [Saratov State University, Saratov (Russian Federation)

    2010-06-29T23:59:59.000Z

    For a locally compact zero-dimensional group (G,+{sup .}), we build a multiresolution analysis and put forward an algorithm for constructing orthogonal wavelet bases. A special case is indicated when a wavelet basis is generated from a single function through contractions, translations and exponentiations. Bibliography: 19 titles.

  7. analysis based control: Topics by E-print Network

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

    Ping Yang; Scott D. Stoller; C. R. Ramakrishnan 2006-01-01 8 FAULT TOLERANT CONTROL SYSTEM DESIGN: A RECONFIGURATIN STRATEGY BASED ON RELIABILITY ANALYSIS UNDER DYNAMIC BEHAVIOR...

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

    Open Energy Info (EERE)

    Tool Summary LAUNCH TOOL Name: NETL - Petroleum-Based Fuels Life Cycle Greenhouse Gas Analysis 2005 Baseline Model AgencyCompany Organization: National Energy Technology...

  9. analysis tool based: Topics by E-print Network

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

    Visualization Requirements, Implementation Future Work 12 Weidendorfer, Josef 2 Web-based pre-Analysis Tools CERN Preprints Summary: The project consists in the initial...

  10. Performance Analysis of Accumulator-based Revocation Mechanisms

    E-Print Network [OSTI]

    Boyer, Edmond

    Performance Analysis of Accumulator-based Revocation Mechanisms Jorn Lapon1, Markulf Kohlweiss3 issues is the efficient revocation of anonymous credentials. Currently, accumulator based re- vocation- cations. Keywords: Anonymous Credentials, Revocation, Accumulators 1 Introduction In an increasing

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

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

    and 350,000 for task orders 1 and 2. Implementation of an initiative to replace faulty steam traps throughout the Base will result in annual savings of about 1 million. There may...

  12. Surface-Based Analysis of Functional Magnetic Resonance Imaging Data

    E-Print Network [OSTI]

    Thompson, Paul

    Surface-Based Analysis of Functional Magnetic Resonance Imaging Data Theo G.M. van Erp1, Vikas Y School of Medicine, Los Angeles, CA 90095, USA Abstract. Surface-based visualization, atlases the integration of surface-based tech- niques with functional imaging data, combining surface-based nonlinear

  13. Case study and analysis of WAN Optimization pre-requirements

    E-Print Network [OSTI]

    Balakrishnan, Bhargav

    2011-01-01T23:59:59.000Z

    This paper deals with HOW to analyze the requirements for setting up the WAN Optimizer. The criteria's that needs to be taken into account, the steps involved in the analysis of WAN optimization requirement. These entire analyses will give a complete framework for setting up a WAN optimizer within an organization and the organization will have a clear record on the analysis made before setting up this WAN Optimizer.

  14. Overview of New Tools to Perform Safety Analysis: BWR Station Black Out Test Case

    SciTech Connect (OSTI)

    D. Mandelli; C. Smith; T. Riley; J. Nielsen; J. Schroeder; C. Rabiti; A. Alfonsi; Cogliati; R. Kinoshita; V. Pasucci; B. Wang; D. Maljovec

    2014-06-01T23:59:59.000Z

    Dynamic Probabilistic Risk Assessment (DPRA) methodologies couple system simulator codes (e.g., RELAP, MELCOR) with simulation controller codes (e.g., RAVEN, ADAPT). While system simulator codes accurately model system dynamics deterministically, simulation controller codes introduce both deterministic (e.g., system control logic, operating procedures) and stochastic (e.g., component failures, parameter uncertainties) elements into the simulation. Typically, a DPRA is performed by: 1) sampling values of a set of parameters from the uncertainty space of interest (using the simulation controller codes), and 2) simulating the system behavior for that specific set of parameter values (using the system simulator codes). For complex systems, one of the major challenges in using DPRA methodologies is to analyze the large amount of information (i.e., large number of scenarios ) generated, where clustering techniques are typically employed to allow users to better organize and interpret the data. In this paper, we focus on the analysis of a nuclear simulation dataset that is part of the Risk Informed Safety Margin Characterization (RISMC) Boiling Water Reactor (BWR) station blackout (SBO) case study. We apply a software tool that provides the domain experts with an interactive analysis and visualization environment for understanding the structures of such high-dimensional nuclear simulation datasets. Our tool encodes traditional and topology-based clustering techniques, where the latter partitions the data points into clusters based on their uniform gradient flow behavior. We demonstrate through our case study that both types of clustering techniques complement each other in bringing enhanced structural understanding of the data.

  15. Jitter-based analysis and discussion of burst assembly algorithms

    E-Print Network [OSTI]

    Aracil, Javier

    Jitter-based analysis and discussion of burst assembly algorithms Javier Aracil, Jos´e Alberto Hern a jitter analysis of size-based burst assembly algorithms and also discusses other burst assem- bly algorithms that use the packet delay as the assembly threshold to provide a bound on jitter. Index Terms

  16. SUMMARY-BASED POINTER ANALYSIS FRAMEWORK FOR MODULAR BUG FINDING

    E-Print Network [OSTI]

    SUMMARY-BASED POINTER ANALYSIS FRAMEWORK FOR MODULAR BUG FINDING Marcio O. Buss Submitted of Arts and Sciences COLUMBIA UNIVERSITY 2007 #12;c 2007 Marcio O. Buss All Rights Reserved #12;ABSTRACT SUMMARY-BASED POINTER ANALYSIS FRAMEWORK FOR MODULAR BUG FINDING Marcio O. Buss Modern society

  17. Model Structure Analysis for Model-based Operation of

    E-Print Network [OSTI]

    Van den Hof, Paul

    conducted in the framework of the "Integrated System Approach Petroleum Production" (ISAPP) programmeModel Structure Analysis for Model-based Operation of Petroleum Reservoirs #12;#12;MODEL STRUCTURE ANALYSIS FOR MODEL-BASED OPERATION OF PETROLEUM RESERVOIRS PROEFSCHRIFT ter verkrijging van de graad van

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

    E-Print Network [OSTI]

    Nutt-Powell, Thomas E.

    1979-01-01T23:59:59.000Z

    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 ...

  19. Medially Based Meshing with Finite Element Analysis of Prostate Deformation

    E-Print Network [OSTI]

    Crouch, Jessica R.

    Medially Based Meshing with Finite Element Analysis of Prostate Deformation Jessica R. Crouch1 have approached prostate imaging problems using meth- ods that incorporate finite element analysis. Assume the prostate is a linearly elastic body and compute its deformation using finite element analysis

  20. Evaluating forest fire prevention programs: an analysis of three case studies

    E-Print Network [OSTI]

    Rigsby, Shelley Renee

    1980-01-01T23:59:59.000Z

    EVALUATING FOREST FIRE PREVENTION PROGRAMS; AN ANALYSIS OF THREE CASE STUDIES A Thesi. s by Shelley Renee Rigsby Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1980 jor Subject: Sociology EVALUATING FOREST FIRE PREVENTION PROGRAMS: AN ANALYSIS OF THREE CASE STUDIES A Thesis by S. Ranee Rigsby Approved as to style and content by: (Chairman of Committee) p~ (Memb r) (Head f partment...

  1. Case-Based Reasoning vs Parametric Models for Software Quality Optimization

    E-Print Network [OSTI]

    Menzies, Tim

    staff hours), and time (elapsed calendar months). In the first way, we construct a parametric model from historical cases. Aim: To assess case-based reasoning vs parametric modeling for quality Descriptors D.2.9 [Software Engineering]: Management--Software quality assurance; D.2.9 [Software Engineering

  2. Evaluation of a case-based Reasoning Energy Prediction Tool for Commercial Buildings 

    E-Print Network [OSTI]

    Monfet, D.; Arkhipova, E.; Choiniere, D.

    2013-01-01T23:59:59.000Z

    This paper presents the results of an energy predictor that predicts the energy demand of commercial buildings using Case Based Reasoning (CBR). The proposed approach is evaluated using monitored data in a real office building located in Varennes...

  3. Micro Level Data Analysis in Continuous Commissioning®: A Case Study 

    E-Print Network [OSTI]

    Khan, S.; Bible, M.

    2012-01-01T23:59:59.000Z

    PAPERS\\22 Anderson CC ICEBO Paper (REV 02 8.10.12).docx Figure 7. HW pump run-time analysis. 5.5. CHW Plant As with the HW boiler control, setpoint reset functionality was limited within the BAS. Thus, no direct changes to the chiller sequence...

  4. Urban tree maintenance scheduling: a case study using Fort Worth's METRIS geo data base

    E-Print Network [OSTI]

    Mirenda, Joseph Salvatore

    1981-01-01T23:59:59.000Z

    URBAN TREE MAINTENANCE SCHEDULING: A CASE STUDY USING FORT WORTH'S METRIS GEO DATA BASE A Thesis JOSEPH SALVATORE MIRENDA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE December, 1981 Major Subject: Forestry URBAN TREE MAINTENANCE SCHEDULING: A CASE STUDY USING FORT WORTH'S METRIS GEO DATA BASE A Thesis by JOSEPH SALVATORE MIRENDA Approved as to style and content by: Dr. Robert D. Baker...

  5. An approach to the teaching of Korean particles based on case grammar 

    E-Print Network [OSTI]

    Kang, Joo Ok

    1975-01-01T23:59:59.000Z

    AN APPROACH TO THE TEACHING OF KOREAN PARTICLES BASED ON CASE GRAKMAR A Thesis JOO OK KANG Submitted to the Graduate College of' Texas MM University in partial fulfillment of the requirement for the degree of MASTER OF ARTS December 197...$ Major Subject: English AN APPROACH TO THE TEACHING OF KOREAN PARTICLES BASED ON CASE GRAMMAR A Thesis by JOO OK KANG Approved as to style and content by~ H ad f Department Member Q. &= Member December 197$ ABSTRACT An Approach...

  6. Average-case analysis of perfect sorting by reversals Mathilde Bouvel

    E-Print Network [OSTI]

    Boyer, Edmond

    genomics, is the process of sorting a signed permutation to either the identity or to the reversed identity example here: we perform an average case analysis of a sorting algorithm from computational genomics by generating function analysis of a family of trees. Motivation: a computational genomics problem

  7. Unsteady, high Reynolds number validation cases for a multi-phase CFD analysis tool have been

    E-Print Network [OSTI]

    Kunz, Robert Francis

    and constituent volume fraction transport/generation for liquid, condensable vapor and non-condensable gas fields1 Abstract Unsteady, high Reynolds number validation cases for a multi-phase CFD analysis tool have of the effect of cavitation number, Reynolds number and turbulence model has been made. Analysis of the modeled

  8. Value based analysis of acquisition portfolios

    E-Print Network [OSTI]

    Burgess, Cheri Nicole Markt

    2010-01-01T23:59:59.000Z

    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 ...

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

    SciTech Connect (OSTI)

    Dowding, Kevin J.; Rutherford, Brian Milne

    2003-07-01T23:59:59.000Z

    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

  10. Finite element analysis and computed tomography based structural rigidity analysis of rat tibia with simulated lytic defects

    E-Print Network [OSTI]

    Vaziri, Ashkan

    Finite element analysis and computed tomography based structural rigidity analysis of rat tibia) (Damron et al., 2003; Mirels, 1989). In contrast, Computed Tomography based Structural Rigidly Ana- lysis

  11. Social Network Analysis: A case study of the Islamist terrorist network

    SciTech Connect (OSTI)

    Medina, Richard M [ORNL

    2012-01-01T23:59:59.000Z

    Social Network Analysis is a compilation of methods used to identify and analyze patterns in social network systems. This article serves as a primer on foundational social network concepts and analyses and builds a case study on the global Islamist terrorist network to illustrate the use and usefulness of these methods. The Islamist terrorist network is a system composed of multiple terrorist organizations that are socially connected and work toward the same goals. This research utilizes traditional social network, as well as small-world, and scale-free analyses to characterize this system on individual, network and systemic levels. Leaders in the network are identified based on their positions in the social network and the network structure is categorized. Finally, two vital nodes in the network are removed and this version of the network is compared with the previous version to make implications of strengths, weaknesses and vulnerabilities. The Islamist terrorist network structure is found to be a resilient and efficient structure, even with important social nodes removed. Implications for counterterrorism are given from the results of each analysis.

  12. Comparative analysis of plant oil based fuels

    SciTech Connect (OSTI)

    Ziejewski, M.; Goettler, H.J.; Haines, H.; Huong, C.

    1995-12-31T23:59:59.000Z

    This paper presents the evaluation results from the analysis of different blends of fuels using the 13-mode standard SAE testing method. Six high oleic safflower oil blends, six ester blends, six high oleic sunflower oil blends, and six sunflower oil blends were used in this portion of the investigation. Additionally, the results from the repeated 13-mode tests for all the 25/75% mixtures with a complete diesel fuel test before and after each alternative fuel are presented.

  13. VALIDATION OF PV PERFORMANCE MODELS USING SATELLITE-BASED IRRADIANCE MEASUREMENTS: A CASE STUDY

    E-Print Network [OSTI]

    Perez, Richard R.

    VALIDATION OF PV PERFORMANCE MODELS USING SATELLITE-BASED IRRADIANCE MEASUREMENTS: A CASE STUDY Clean Power Research Kirkland, WA e-mail: aparkins@cleanpower.com ABSTRACT Photovoltaic (PV) system and existing PV systems under a wide variety of environmental conditions. Ground based meteorological

  14. 2007 Wholesale Power Rate Case Initial Proposal : Risk Analysis Study.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    2005-11-01T23:59:59.000Z

    The Federal Columbia River Power System (FCRPS), operated on behalf of the ratepayers of the PNW by BPA and other Federal agencies, faces many uncertainties during the FY 2007-2009 rate period. Among these uncertainties, the largest revolve around hydro conditions, market prices and river operations for fish recovery. In order to provide a high probability of making its U.S. Treasury payments, BPA performs a Risk Analysis as part of its rate-making process. In this Risk Analysis, BPA identifies key risks, models their relationships, and then analyzes their impacts on net revenues (total revenues less expenses). BPA subsequently evaluates in the ToolKit Model the Treasury Payment Probability (TPP) resulting from the rates, risks, and risk mitigation measures described here and in the Wholesale Power Rate Development Study (WPRDS). If the TPP falls short of BPA's standard, additional risk mitigation revenues, such as PNRR and CRAC revenues are incorporated in the modeling in ToolKit until the TPP standard is met. Increased wholesale market price volatility and six years of drought have significantly changed the profile of risk and uncertainty facing BPA and its stakeholders. These present new challenges for BPA in its effort to keep its power rates as low as possible while fully meeting its obligations to the U.S. Treasury. As a result, the risk BPA faces in not receiving the level of secondary revenues that have been credited to power rates before receiving those funds is greater. In addition to market price volatility, BPA also faces uncertainty around the financial impacts of operations for fish programs in FY 2006 and in the FY 2007-2009 rate period. A new Biological Opinion or possible court-ordered change to river operations in FY 2006 through FY 2009 may reduce BPA's net revenues included Initial Proposal. Finally, the FY 2007-2009 risk analysis includes new operational risks as well as a more comprehensive analysis of non-operating risks. Both the operational and non-operational risks will be described in Section 2.0 of this study. Given these risks, if rates are designed using BPA's traditional approach of only adding Planned Net Revenues for Risk (PNRR), power rates would need to recover a much larger ''risk premium'' to meet BPA's TPP standard. As an alternative to high fixed risk premiums, BPA is proposing a risk mitigation package that combines PNRR with a variable rate mechanism similar to the cost recovery adjustment mechanisms used in the FY 2002-2006 rate period. The proposed risk mitigation package is less expensive on a forecasted basis because the rates can be adjusted on an annual basis to respond to uncertain financial outcomes. BPA is also proposing a Dividend Distribution Clause (DDC) to refund reserves in excess of $800M to customers in the event net revenues in the next rate period exceed current financial forecasts.

  15. Internet-based Self-Services from Analysis and

    E-Print Network [OSTI]

    Miller, John A.

    costs (PaaS) #12;ITIL IMS Use Case ­Incident Management Service (IMS) ­ From ITIL ­Blueprint >> ­Resolve incidents ­ Disks errors ­ Printers not working ITIL = Information Technology Infrastructure Library #12 into a commercial PaaS platform. #12;Service analysis · Use weak semantics to identify ISS main concepts · ITIL

  16. Analysis of Percussion Grip for Physically Based Character Animation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Firstly, it provides realistic exam- ples of the human motion under study for driving the virtualAnalysis of Percussion Grip for Physically Based Character Animation Alexandre Bou¨enard* Marcelo This paper presents the analysis of percussion tech- nique for the simulation of virtual timpani playing sit

  17. An economic analysis of export sales and export shipments: the case for cotton

    E-Print Network [OSTI]

    Ayuk, Elias Takor

    1986-01-01T23:59:59.000Z

    AN ECONOMIC ANALTSIS OF EXPORT SALES AND EXPORT SHIPMENTS: THE CASE FOR COTTON A Thesis by ELIAS TAKOR AYUK Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1986 Mayor Subgect: Agricultural Economics AN ECONOMIC ANALYSIS OF EXPORT SALES AND EXPORT SHIPMENTS: THE CASE FOR COTTON A Thesis by ELIAS TAKOR AYUK Approved as to style and content by Thomas L. Sporle er &Chairman of Committee...

  18. Contribution of Case Based Reasoning (CBR) in the Exploitation of Return of Experience. Application to Accident Scenarii in Railroad Transport

    E-Print Network [OSTI]

    Maalel, Ahmed

    2012-01-01T23:59:59.000Z

    The study is from a base of accident scenarii in rail transport (feedback) in order to develop a tool to share build and sustain knowledge and safety and secondly to exploit the knowledge stored to prevent the reproduction of accidents / incidents. This tool should ultimately lead to the proposal of prevention and protection measures to minimize the risk level of a new transport system and thus to improve safety. The approach to achieving this goal largely depends on the use of artificial intelligence techniques and rarely the use of a method of automatic learning in order to develop a feasibility model of a software tool based on case based reasoning (CBR) to exploit stored knowledge in order to create know-how that can help stimulate domain experts in the task of analysis, evaluation and certification of a new system.

  19. Fuel Cell System Improvement for Model-Based Diagnosis Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fuel Cell System Improvement for Model-Based Diagnosis Analysis Philippe Fiani & Michel Batteux of a model of a fuel cell system, in order to make it usable for model- based diagnosis methods. A fuel cell for the fuel cell stack but also for the system environment. In this paper, we present an adapted library which

  20. Analysis and Model-Based Control of Servomechanisms With Friction

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    Analysis and Model-Based Control of Servomechanisms With Friction Evangelos G. Papadopoulos e Engineering, National Technical University of Athens, 15780 Athens, Greece Friction is responsible for several, model-based feedback compensation is studied for servomechanism tracking tasks. Several kinetic friction

  1. Patent Citation Analysis: Calculating Science linkage based on Citing Motivation

    E-Print Network [OSTI]

    Menczer, Filippo

    1 Patent Citation Analysis: Calculating Science linkage based on Citing Motivation Rui Li used patent bibliometric indicator to measure patent linkage to scientific research based on the frequency of citations to scientific papers within the patent. Science linkage is also regarded as noisy

  2. Speeding Up SMT-Based Quantitative Program Analysis

    E-Print Network [OSTI]

    Seshia, Sanjit A.

    Speeding Up SMT-Based Quantitative Program Analysis Daniel J. Fremont and Sanjit A. Seshia-free program. These problems can be solved using a combi- nation of path enumeration, SMT solving, and model present a formalization and satisfiability modulo theories (SMT) based solution to a family

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

    E-Print Network [OSTI]

    Jayaram, Bhyravabotla

    Free Energy Component Analysis for Drug Design: A Case Study of HIV-1 Protease-Inhibitor Binding energy component analysis that conveys information on the physicochemical forces driving the protein for a specific protein target if not in the general case. It is here that the free energy component analysis

  4. Case Study of Undrained Strength Stability Analysis for Dredged Material Placement Areas

    E-Print Network [OSTI]

    Case Study of Undrained Strength Stability Analysis for Dredged Material Placement Areas Timothy D perimeter dike at the Craney Island Dredged Material Management Area CIDMMA using an undrained strength of the effective overburden stress of the dredged material and the marine clay underlying the dike. An undrained

  5. A Case of Visual and Interactive Data Analysis: Geospatial Redescription Mining

    E-Print Network [OSTI]

    A Case of Visual and Interactive Data Analysis: Geospatial Redescription Mining Esther Galbrun1¨ucken, Germany, pmiettin@mpi-inf.mpg.de Abstract. We present a method for visual and interactive geospatial redescription mining. The goal of geospatial redescription mining is to characterize geospatial areas using two

  6. Worst-Case and Smoothed Analysis of k-Means Clustering with Bregman Divergences

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    Worst-Case and Smoothed Analysis of k-Means Clustering with Bregman Divergences Bodo Manthey1 Department of Quantitative Economics, Maastricht University heiko@roeglin.org Abstract. The k-means algorithm entropy, which is commonly used to cluster web pages. In this paper, we analyze the running-time of the k-means

  7. Product development with a focus on attractive product expression: an analysis of case studies

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Product development with a focus on attractive product expression: an analysis of case studies products is vital for a company's endurance in competitive markets. A mix of functionality, ergonomics, aesthetics, symbols and price aspects all play a role in making a product desirable. Some products carry

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    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

  9. LETTER TO THE EDITOR Regarding ``Meta-analysis and Causal Inference: A Case Study of Benzene

    E-Print Network [OSTI]

    California at Berkeley, University of

    LETTER TO THE EDITOR Regarding ``Meta-analysis and Causal Inference: A Case Study of Benzene of a causal association between non-Hodgkin lymphoma (NHL) and benzene and between NHL and petroleum refinery identified provide ``further evidence that benzene exposure causes NHL.'' However, his review of each

  10. Robust Secure Transmission in MISO Channels Based on Worst-Case Optimization

    E-Print Network [OSTI]

    Huang, Jing

    2011-01-01T23:59:59.000Z

    This paper studies robust transmission schemes for multiple-input single-output (MISO) wiretap channels. Both the cases of direct transmission and cooperative jamming with a helper are investigated with imperfect channel state information (CSI) for the eavesdropper links. Robust transmit covariance matrices are obtained based on worst-case secrecy rate maximization, under both individual and global power constraints. For the case of an individual power constraint, we show that the non-convex maximin optimization problem can be transformed into a quasiconvex problem that can be efficiently solved with existing methods. For a global power constraint, the joint optimization of the transmit covariance matrices and power allocation between the source and the helper is studied via geometric programming. We also study the robust wiretap transmission problem for the case with a quality-of-service constraint at the legitimate receiver. Numerical results show the advantage of the proposed robust design. In particular, ...

  11. Dynamic Management of Internet Telephony Servers: A Case Study based on JavaBeans and JDMK

    E-Print Network [OSTI]

    management systems. The results of our work allow us to evaluate JDMK regarding its suitability for the mana such as CORBA and JavaBeans are gaining in- creasing importance for the integrated management of net- worksDynamic Management of Internet Telephony Servers: A Case Study based on JavaBeans and JDMK

  12. A Competency-Based Learning Resource Retrieval Process : The LUISA-UHP Case-Study

    E-Print Network [OSTI]

    Boyer, Edmond

    A Competency-Based Learning Resource Retrieval Process : The LUISA-UHP Case-Study Monique Grandbastien1 1 LORIA, Université Henri Poincaré Nancy1, France monique.grandbastien@loria.fr Abstract to the major challenges in the search, interchange and delivery of learning objects in a inria-00423930,version

  13. A Case-Based Conceptual Design Information Server for Concurrent Engineering1

    E-Print Network [OSTI]

    Agogino, Alice M.

    1 A Case-Based Conceptual Design Information Server for Concurrent Engineering1 William H. Wood III been focused on the functionality of an artifact to be provided to a customer. Concurrent engineering i n concurrent engineering are indexed to provide access through multiple interfaces, allowing

  14. IMPROVING CARE AT THE END OF LIFE: AN AUTOMATED CASE-BASED REASONING APPROACH

    E-Print Network [OSTI]

    Kopec, Danny

    IMPROVING CARE AT THE END OF LIFE: AN AUTOMATED CASE-BASED REASONING APPROACH Suzanne Tamang younger patients. Targeting system wide "error- reducing" reforms at vulnerable populations (who are disproportionately affected, both in terms of incidence and severity) can improve the quality of care delivered

  15. APPLYING CASE-BASED REASONING IN THE EVOLUTION OF DEFORESTATION PATTERNS IN THE BRAZILIAN

    E-Print Network [OSTI]

    Camara, Gilberto

    APPLYING CASE-BASED REASONING IN THE EVOLUTION OF DEFORESTATION PATTERNS IN THE BRAZILIAN AMAZONIA, gilberto, leila, isabel, olga}@dpi.inpe.br ABSTRACT Patterns of deforestation in Brazilian Amazonia to establish rules and detect object deforestation evolution in an Amazonia region. The objects were analyzed

  16. SafeCert 2008 Model-Based Safety-Cases for

    E-Print Network [OSTI]

    characterisations. From this, open research issues are derived. Keywords: Safety case, model-based, structured approaches exist: Leveson et al. [7] describe an FTA-like approach to examine Ada programs, while Giese et al hazards to determine how much of a threat they pose, i.e. the severity and likelihood of potential

  17. From Application to ASIP-based FPGA prototype: a Case Study on Turbo Decoding

    E-Print Network [OSTI]

    Muller, Olivier

    From Application to ASIP-based FPGA prototype: a Case Study on Turbo Decoding Olivier Muller, Amer turbo decoder. It introduces turbo decoding application and proposes an Application-Specific Instruction when decoding a double binary turbo code with 5 iterations. 1. Introduction Applications in the field

  18. A Hybrid Rule-Based/Case-Based Reasoning Approach for Service Fault Diagnosis

    E-Print Network [OSTI]

    affecting the service quality and a reasonable balance between the fault management effort and the costs of network and systems management. Our hybrid architecture consists of a rule-based reasoning module, whose in opposition to network and systems management. While the events that are encountered in network and systems

  19. Analysis of SPDEs Arising in Path Sampling Part II: The Nonlinear Case

    E-Print Network [OSTI]

    Hairer, Martin

    for the development of practical algorithms for sam- pling infinite dimensional problems. The resulting SPDEs provide sampling in the nonlinear case, via a change of measure. Keywords: Path sampling, stochastic PDEs introduced Stochastic Partial Differential Equation (SPDE) based approach to infinite dimensional sampling

  20. analysis based lng: Topics by E-print Network

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

    analysis based lng First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Floating LNG terminal and LNG...

  1. Model-based experimental analysis for inter-polymer process

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    ) + Polyethylene (PE) ARCEL TOUGH FLEXIBLE Advanced packaging material Interpenetrating polymer network productModel-based experimental analysis for inter-polymer process CMU: Weijie Lin, Lorenz T. Biegler processed in a sequential way Polymer A Polymer B Project overview Inter-polymer process #12;Project

  2. Analysis of Semantic Building Blocks via Grobner Bases

    E-Print Network [OSTI]

    Fernandez, Thomas

    for the space of multivariate polynomials in n variables, capable of expressing arbitrary sums and productsAnalysis of Semantic Building Blocks via Gr¨obner Bases Jerry Swan1 , Geoffrey K. Neumann1 for greatest common divisor from univariate to multivariate polyno- mials. Since its invention in 1965, it has

  3. GENERAL RESEARCH Real Options Based Analysis of Optimal Pharmaceutical Research

    E-Print Network [OSTI]

    Maranas, Costas

    GENERAL RESEARCH Real Options Based Analysis of Optimal Pharmaceutical Research and Development optimization model (OptFolio) of pharmaceutical research and development (R&D) portfolio management using preclinical development through FDA filing and product launch.1 A drug may spend 6-10 years

  4. Analysis of An Adaptive Sampler Based on Weber's Law

    E-Print Network [OSTI]

    Dabeer, Onkar

    1 Analysis of An Adaptive Sampler Based on Weber's Law Onkar Dabeer Subhasis Chaudhuri Onkar Dabeer;2 Abstract Weber's law suggests a logarithmic relationship between perceptual stimuli and human perception. The Weber sampler is an adaptive, non-uniform sampling mechanism that exploits Weber's law to sample

  5. Assessment and Event Based Analysis of Dynamic Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Assessment and Event Based Analysis of Dynamic Wireless Networks Denis Carvin1,2, Guillaume Kremer1 of mobile nodes in networks is significantly changing the way they are managed. Indeed, these wireless-estimation algorithm for wireless mobile networks. We then provide events' collection and distributed mining methods

  6. Analysis of Time Series Using Compact Model-Based Descriptions

    E-Print Network [OSTI]

    Kriegel, Hans-Peter

    Analysis of Time Series Using Compact Model-Based Descriptions Hans-Peter Kriegel, Peer Kr this is a combination of the coefficients 1, . . . , 3 representing the three input time series using a function f-of-the-art compression methods. The results are visually presented in a very concise way so that the user can easily

  7. Analysis of Preventive Maintenance in Transactions Based Software Systems

    E-Print Network [OSTI]

    Telek, Miklós

    Analysis of Preventive Maintenance in Transactions Based Software Systems Sachin Garg 1 , Antonio''. However, it incurs some overhead. The necessity to do preventive maintenance not only in general purpose to illustrate the usefulness and applicability of the models. Keywords: Preventive Maintenance, Transactions

  8. Lyapunov-Based Stability Analysis for REM Congestion Control

    E-Print Network [OSTI]

    Low, Steven H.

    Lyapunov-Based Stability Analysis for REM Congestion Control Orhan C¸ . IMER, Tamer BAS¸AR Abstract-- This paper investigates convergence properties of basic REM flow control algorithm via Lyapunov functions a Lyapunov argument. Extension to the general multi-link model is discussed as well. I. INTRODUCTION

  9. The Comprehensive Imaging-Based Analysis of the Lung

    E-Print Network [OSTI]

    Virginia Tech

    The Comprehensive Imaging-Based Analysis of the Lung: A Forum for Team Science1 Eric A. Hoffman, Ph description and understanding of the human lung and its response to disease, injury, and treatment, which for the need to volumetrically im- age the lung and to provide objective, quantitative measures characterizing

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

    SciTech Connect (OSTI)

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

    2009-03-04T23:59:59.000Z

    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).

  11. Analysis of wind turbine vibrations based on SCADA data

    E-Print Network [OSTI]

    Andrew Kusiak; Zijun Zhang

    2010-01-01T23:59:59.000Z

    Vibrations of a wind turbine have a negative impact on its performance. Mitigating this undesirable impact requires knowledge of the relationship between the vibrations and other wind turbine parameters that could be potentially modified. Three approaches for ranking the impact importance of measurable turbine parameters on the vibrations of the drive train and the tower are discussed. They include the predictor importance analysis, the global sensitivity analysis, and the correlation coefficient analysis versed in data mining and statistics. To decouple the impact of wind speed on the vibrations of the drive train and the tower, the analysis is performed on data sets with narrow speed ranges. Wavelet analysis is applied to filter noisy accelerometer data. To exclude the impact malfunctions on the vibration analysis, the data are analyzed in a frequency domain. Data-mining algorithms are used to build models with turbine parameters of interest as inputs, and the vibrations of drive train and tower as outputs. The performance of each model is thoroughly evaluated based on metrics widely used in the wind industry. The neural network algorithm outperforms other classifiers and is considered to be the most promising approach to study wind turbine vibrations. ?DOI: 10.1115/1.4001461?

  12. A watershed-based method for environmental vulnerability assessment with a case study of the Mid-Atlantic region

    SciTech Connect (OSTI)

    Tran, Liem T., E-mail: ltran1@utk.edu [Department of Geography, University of Tennessee, Knoxville, TN (United States); O& #x27; Neill, Robert V. [OTIE and Associates, Oak Ridge, TN (United States); Smith, Elizabeth R. [U.S. Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Research Triangle Park, NC (United States)

    2012-04-15T23:59:59.000Z

    The paper presents a method for environmental vulnerability assessment with a case study of the Mid-Atlantic region. The method is based on the concept of 'self-/peer-appraisal' of a watershed in term of vulnerability. The self-/peer-appraisal process is facilitated by two separate linear optimization programs. The analysis provided insights on the environmental conditions, in general, and the relative vulnerability pattern, in particular, of the Mid-Atlantic region. The suggested method offers a simple but effective and objective way to perform a regional environmental vulnerability assessment. Consequently the method can be used in various steps in environmental assessment and planning. - Highlights: Black-Right-Pointing-Pointer We present a method for regional environmental vulnerability assessment. Black-Right-Pointing-Pointer It is based on the self-/peer-appraisal concept in term of vulnerability. Black-Right-Pointing-Pointer The analysis is facilitated by two separate linear optimization programs. Black-Right-Pointing-Pointer The method provides insights on the regional relative vulnerability pattern.

  13. Tariff-based analysis of commercial building electricityprices

    SciTech Connect (OSTI)

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

    2008-03-28T23:59:59.000Z

    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.

  14. Weather data analysis based on typical weather sequence analysis. Application: energy building simulation

    E-Print Network [OSTI]

    David, Mathieu; Garde, Francois; Boyer, Harry

    2014-01-01T23:59:59.000Z

    In building studies dealing about energy efficiency and comfort, simulation software need relevant weather files with optimal time steps. Few tools generate extreme and mean values of simultaneous hourly data including correlation between the climatic parameters. This paper presents the C++ Runeole software based on typical weather sequences analysis. It runs an analysis process of a stochastic continuous multivariable phenomenon with frequencies properties applied to a climatic database. The database analysis associates basic statistics, PCA (Principal Component Analysis) and automatic classifications. Different ways of applying these methods will be presented. All the results are stored in the Runeole internal database that allows an easy selection of weather sequences. The extreme sequences are used for system and building sizing and the mean sequences are used for the determination of the annual cooling loads as proposed by Audrier-Cros (Audrier-Cros, 1984). This weather analysis was tested with the datab...

  15. Exploring JavaScript and ROOT technologies to create Web-based ATLAS analysis and monitoring tools

    E-Print Network [OSTI]

    Sanchez, Arturo; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    We explore the potentialities of current web applications to create online interfaces that allow the visualization, interaction and real physics cut-based analysis and monitoring of processes trough a web browser. The project consists in the initial development of web-based and cloud computing services to allow students and researches to perform fast and very useful cut-based analysis on a browser, reading and using real data and official Monte-Carlo simulations stored in ATLAS computing facilities. Several tools are considered: ROOT, JavaScript and HTML. Our study case is the current cut-based H->ZZ->llqq analysis of the ATLAS experiment. Preliminary but satisfactory results have been obtained online; this presentation describes the tests and plans and future upgrades.

  16. Exploring JavaScript and ROOT technologies to create Web-based ATLAS analysis and monitoring tools

    E-Print Network [OSTI]

    Sanchez, Arturo; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    We explore the potentialities of current web applications to create online interfaces that allow the visualization, interaction and real physics cut-based analysis and monitoring of processes trough a web browser. The project consists in the initial development of web-based and cloud computing services to allow students and researches to perform fast and very useful cut-based analysis on a browser, reading and using real data and official Monte-Carlo simulations stored in ATLAS computing facilities. Several tools are considered: ROOT, JavaScript and HTML. Our study case is the current cut-based $H \\rightarrow ZZ \\rightarrow llqq$ analysis of the ATLAS experiment. Preliminary but satisfactory results have been obtained online.

  17. Nonrigid Motion Analysis Based on Dynamic Refinement of Finite Element Models

    E-Print Network [OSTI]

    Sarkar, Sudeep

    Nonrigid Motion Analysis Based on Dynamic Refinement of Finite Element Models Leonid V. Tsap finite element models. The method is based on the iterative analysis of the differences betweenÐPhysically-based vision, deformable models, nonrigid motion analysis, biomedical applications, finite element analysis. æ

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

    SciTech Connect (OSTI)

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

    2012-08-01T23:59:59.000Z

    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.

  19. Open cycle heat pump development: Phase II, District heating case study analysis: Progress report, October 1988--December 31, 1988

    SciTech Connect (OSTI)

    DiBella, F.; Becker, F.E.; Glick, J.

    1989-04-01T23:59:59.000Z

    A district heating system is proposed that uses low-level waste-energy sources, and a quasi open-cycle steam heat pump as a means of upgrading the energy in the form of hot water to use as a transport medium in the system. The use of a water-based, open-cycle heat pump appears to be extremely well suited in terms of its potential thermodynamic performance, cost, and environmental safety compared to more typical organic gased closed cycle systems. The Phase II case study provides a detailed analysis of a district heating system that utilizes the open cycle steam heat pump concept developed in Phase I. This quarterly report describes the energy audit performed on the heat source and heat sink.

  20. Sensitivity analysis of aquifer parameter estimations based on the Laplace equation with linearized boundary conditions

    E-Print Network [OSTI]

    Szilagyi, Jozsef

    boundary conditions Jozsef Szilagyi Conservation and Survey Division, University of Nebraska analysis Citation: Szilagyi, J., Sensitivity analysis of aquifer parameter estimations based on the Laplace

  1. SNP-based pathway enrichment analysis for genome-wide association studies

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    SNP: applying gene set enrichment analysis to SNP data fromdetection of pathway enrichment in genome-wide associational. : SNP-based pathway enrichment analysis for genome-wide

  2. Techno-Economic Analysis of Biofuels Production Based on Gasification

    SciTech Connect (OSTI)

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

    2010-11-01T23:59:59.000Z

    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.

  3. A graph-based system for network-vulnerability analysis

    SciTech Connect (OSTI)

    Swiler, L.P.; Phillips, C.

    1998-06-01T23:59:59.000Z

    This paper presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The graph-based tool can identify the set of attack paths that have a high probability of success (or a low effort cost) for the attacker. The system could be used to test the effectiveness of making configuration changes, implementing an intrusion detection system, etc. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level-of-effort for the attacker, various graph algorithms such as shortest-path algorithms can identify the attack paths with the highest probability of success.

  4. Availability Assessment of SunOS/Solaris Unix Systems based on Syslogd and wtmpx log files: A case study

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Availability Assessment of SunOS/Solaris Unix Systems based on Syslogd and wtmpx log files: A case 4 -- France Mohamed.Kaaniche@laas.fr Abstract This paper presents a measurement-based availability, downtimes and availability based on the identification of failures that caused total service loss. Data

  5. Journal of Computational Geometry jocg.org WORST-CASE AND SMOOTHED ANALYSIS OF K-MEANS CLUSTERING

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    Journal of Computational Geometry jocg.org WORST-CASE AND SMOOTHED ANALYSIS OF K-MEANS CLUSTERING WITH BREGMAN DIVERGENCES Bodo Manthey and Heiko R¨oglin Abstract. The k-means method is the method of choice-case running-time. To narrow the gap between theory and practice, k-means has been studied in the semi- random

  6. A self-adaptive case-based reasoning system for dose planning in prostate cancer radiotherapy

    SciTech Connect (OSTI)

    Mishra, Nishikant; Petrovic, Sanja; Sundar, Santhanam [Automated Scheduling, Optimisation and Planning Research Group, School of Computer Science, University of Nottingham, Nottingham NG8 1BB (United Kingdom); Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB (United Kingdom)

    2011-12-15T23:59:59.000Z

    Purpose: Prostate cancer is the most common cancer in the male population. Radiotherapy is often used in the treatment for prostate cancer. In radiotherapy treatment, the oncologist makes a trade-off between the risk and benefit of the radiation, i.e., the task is to deliver a high dose to the prostate cancer cells and minimize side effects of the treatment. The aim of our research is to develop a software system that will assist the oncologist in planning new treatments. Methods: A nonlinear case-based reasoning system is developed to capture the expertise and experience of oncologists in treating previous patients. Importance (weights) of different clinical parameters in the dose planning is determined by the oncologist based on their past experience, and is highly subjective. The weights are usually fixed in the system. In this research, the weights are updated automatically each time after generating a treatment plan for a new patient using a group based simulated annealing approach. Results: The developed approach is analyzed on the real data set collected from the Nottingham University Hospitals NHS Trust, City Hospital Campus, UK. Extensive experiments show that the dose plan suggested by the proposed method is coherent with the dose plan prescribed by an experienced oncologist or even better. Conclusions: The developed case-based reasoning system enables the use of knowledge and experience gained by the oncologist in treating new patients. This system may play a vital role to assist the oncologist in making a better decision in less computational time; it utilizes the success rate of the previously treated patients and it can also be used in teaching and training processes.

  7. Lossless droplet transfer of droplet-based microfluidic analysis

    DOE Patents [OSTI]

    Kelly, Ryan T (West Richland, WA); Tang, Keqi (Richland, WA); Page, Jason S (Kennewick, WA); Smith, Richard D (Richland, WA)

    2011-11-22T23:59:59.000Z

    A transfer structure for droplet-based microfluidic analysis is characterized by a first conduit containing a first stream having at least one immiscible droplet of aqueous material and a second conduit containing a second stream comprising an aqueous fluid. The interface between the first conduit and the second conduit can define a plurality of apertures, wherein the apertures are sized to prevent exchange of the first and second streams between conduits while allowing lossless transfer of droplets from the first conduit to the second conduit through contact between the first and second streams.

  8. A Cumulant-based Analysis of Nonlinear Magnetospheric Dynamics

    SciTech Connect (OSTI)

    Jay R. Johnson; Simon Wing

    2004-01-28T23:59:59.000Z

    Understanding magnetospheric dynamics and predicting future behavior of the magnetosphere is of great practical interest because it could potentially help to avert catastrophic loss of power and communications. In order to build good predictive models it is necessary to understand the most critical nonlinear dependencies among observed plasma and electromagnetic field variables in the coupled solar wind/magnetosphere system. In this work, we apply a cumulant-based information dynamical measure to characterize the nonlinear dynamics underlying the time evolution of the Dst and Kp geomagnetic indices, given solar wind magnetic field and plasma input. We examine the underlying dynamics of the system, the temporal statistical dependencies, the degree of nonlinearity, and the rate of information loss. We find a significant solar cycle dependence in the underlying dynamics of the system with greater nonlinearity for solar minimum. The cumulant-based approach also has the advantage that it is reliable even in the case of small data sets and therefore it is possible to avoid the assumption of stationarity, which allows for a measure of predictability even when the underlying system dynamics may change character. Evaluations of several leading Kp prediction models indicate that their performances are sub-optimal during active times. We discuss possible improvements of these models based on this nonparametric approach.

  9. Sensitivity analysis of GSI based mechanical characterization of rock mass

    E-Print Network [OSTI]

    Ván, P

    2012-01-01T23:59:59.000Z

    Recently, the rock mechanical and rock engineering designs and calculations are frequently based on Geological Strength Index (GSI) method, because it is the only system that provides a complete set of mechanical properties for design purpose. Both the failure criteria and the deformation moduli of the rock mass can be calculated with GSI based equations, which consists of the disturbance factor, as well. The aim of this paper is the sensitivity analysis of GSI and disturbance factor dependent equations that characterize the mechanical properties of rock masses. The survey of the GSI system is not our purpose. The results show that the rock mass strength calculated by the Hoek-Brown failure criteria and both the Hoek-Diederichs and modified Hoek-Diederichs deformation moduli are highly sensitive to changes of both the GSI and the D factor, hence their exact determination is important for the rock engineering design.

  10. Familial history of cancer and childhood acute leukemia: a French population-based case-control study

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Familial history of cancer and childhood acute leukemia: a French population- based case acute leukemia (AL). Methods: The history of cancer in the relatives of 472 cases was compared the hypothesis that a familial history of cancer may play a role in the etiology of childhood acute leukemia

  11. Draft of Preliminary Syllabus Applying Geospatial Analysis-Project Based Learning

    E-Print Network [OSTI]

    Fabrikant, Sara Irina

    Draft of Preliminary Syllabus Applying Geospatial Analysis- Project Based Learning Listed as, and analysis (2) formulate and evaluate research questions relating to geospatial approaches (3) learn geospatial techniques (4) learn data management, data conversion, and data analysis (5) apply geospatial

  12. The Fourier-Like and Hartley-Like Wavelet Analysis Based on Hilbert Transforms

    E-Print Network [OSTI]

    Soares, L R; Cintra, R J

    2015-01-01T23:59:59.000Z

    In continuous-time wavelet analysis, most wavelet present some kind of symmetry. Based on the Fourier and Hartley transform kernels, a new wavelet multiresolution analysis is proposed. This approach is based on a pair of orthogonal wavelet functions and is named as the Fourier-Like and Hartley-Like wavelet analysis. A Hilbert transform analysis on the wavelet theory is also included.

  13. On Smoothing Surfaces in Voxel Based Finite Element Analysis of Trabecular Bone

    E-Print Network [OSTI]

    Frey, Pascal

    On Smoothing Surfaces in Voxel Based Finite Element Analysis of Trabecular Bone Peter Arbenz on complicated domains composed of often hundreds of millions of voxel elements. The finite element analysis finite element (FE) analysis. The approach based on the FE analysis leads to linear systems of equations

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

    E-Print Network [OSTI]

    Ge, Zigang

    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

  15. A graph-based network-vulnerability analysis system

    SciTech Connect (OSTI)

    Swiler, L.P.; Phillips, C.; Gaylor, T.

    1998-05-03T23:59:59.000Z

    This paper presents a graph based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level of effort for the attacker, various graph algorithms such as shortest path algorithms can identify the attack paths with the highest probability of success.

  16. A graph-based network-vulnerability analysis system

    SciTech Connect (OSTI)

    Swiler, L.P.; Phillips, C. [Sandia National Labs., Albuquerque, NM (United States); Gaylor, T. [3M, Austin, TX (United States). Visual Systems Div.

    1998-01-01T23:59:59.000Z

    This report presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level-of-effort for the attacker, various graph algorithms such as shortest-path algorithms can identify the attack paths with the highest probability of success.

  17. Development of a Rubber-Based Product Using a Mixture Experiment: A Challenging Case Study

    SciTech Connect (OSTI)

    Kaya, Yahya; Piepel, Gregory F.; Caniyilmaz, Erdal

    2013-07-01T23:59:59.000Z

    Many products used in daily life are made by blending two or more components. The properties of such products typically depend on the relative proportions of the components. Experimental design, modeling, and data analysis methods for mixture experiments provide for efficiently determining the component proportions that will yield a product with desired properties. This article presents a case study of the work performed to develop a new rubber formulation for an o-ring (a circular gasket) with requirements specified on 10 product properties. Each step of the study is discussed, including: 1) identifying the objective of the study and requirements for properties of the o-ring, 2) selecting the components to vary and specifying the component constraints, 3) constructing a mixture experiment design, 4) measuring the responses and assessing the data, 5) developing property-composition models, 6) selecting the new product formulation, and 7) confirming the selected formulation in manufacturing. The case study includes some challenging and new aspects, which are discussed in the article.

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

    SciTech Connect (OSTI)

    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

    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.

  19. Statistical Analysis of Microarray Data with Replicated Spots: A Case Study withSynechococcusWH8102

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

    Thomas, E. V.; Phillippy, K. H.; Brahamsha, B.; Haaland, D. M.; Timlin, J. A.; Elbourne, L. D. H.; Palenik, B.; Paulsen, I. T.

    2009-01-01T23:59:59.000Z

    Until recently microarray experiments often involved relatively few arrays with only a single representation of each gene on each array. A complete genome microarray with multiple spots per gene (spread out spatially across the array) was developed in order to compare the gene expression of a marine cyanobacterium and a knockout mutant strain in a defined artificial seawater medium. Statistical methods were developed for analysis in the special situation of this case study where there is gene replication within an array and where relatively few arrays are used, which can be the case with current array technology. Due in partmore »to the replication within an array, it was possible to detect very small changes in the levels of expression between the wild type and mutant strains. One interesting biological outcome of this experiment is the indication of the extent to which the phosphorus regulatory system of this cyanobacterium affects the expression of multiple genes beyond those strictly involved in phosphorus acquisition.« less

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

    SciTech Connect (OSTI)

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

    2012-12-27T23:59:59.000Z

    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.

  1. A case study in the misrepresentation of applied behavior analysis in autism: The Gernsbacher lectures

    E-Print Network [OSTI]

    Morris, Edward K.

    2009-03-01T23:59:59.000Z

    , the ethical guidelines of the Behav- ior Analysis Certification BoardH (BACB) require data-based decision making (see Bailey & Burch, 2005, pp. 104–106, 212–214). Gernsbacher’s Review and Conclusions Gernsbacher did not review all the applied behavior... reviewers searched the 1980–1998 MEDLINE, PsychINFO, and ERIC databases under autism, infantile autism, and autistic children and read the abstracts of all the articles for those ‘‘that might contain evidence about intervention’’ and then ob- tained those...

  2. Feature-based Analysis of Plasma-based Particle Acceleration Data

    SciTech Connect (OSTI)

    Ruebel, Oliver; Geddes, Cameron G.R.; Chen, Min; Cormier-Michel, Estelle; Bethel, E. Wes

    2013-07-05T23:59:59.000Z

    Plasma-based particle accelerators can produce and sustain thousands of times stronger acceleration fields than conventional particle accelerators, providing a potential solution to the problem of the growing size and cost of conventional particle accelerators. To facilitate scientific knowledge discovery from the ever growing collections of accelerator simulation data generated by accelerator physicists to investigate next-generation plasma-based particle accelerator designs, we describe a novel approach for automatic detection and classification of particle beams and beam substructures due to temporal differences in the acceleration process, here called acceleration features. The automatic feature detection in combination with a novel visualization tool for fast, intuitive, query-based exploration of acceleration features enables an effective top-down data exploration process, starting from a high-level, feature-based view down to the level of individual particles. We describe the application of our analysis in practice to analyze simulations of single pulse and dual and triple colliding pulse accelerator designs, and to study the formation and evolution of particle beams, to compare substructures of a beam and to investigate transverse particle loss.

  3. 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 (OSTI)

    Frederik Reitsma; Gerhard Strydom; Bismark Tyobeka; Kostadin Ivanov

    2012-10-01T23:59:59.000Z

    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.

  4. RISK MANAGEMENT AND RISK ANALYSIS-BASED DECISION TOOLS FOR ATTACKS ON

    E-Print Network [OSTI]

    Wang, Hai

    RISK MANAGEMENT AND RISK ANALYSIS- BASED DECISION TOOLS FOR ATTACKS ON ELECTRIC POWER Simonoff, J.usc.edu/create Report #04-004DRAFT #12;Risk Management and Risk Analysis-Based Decision Tools for Attacks on Electric for Risk and Economic Analysis of Terrorism Events University of Southern California Los Angeles

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

    E-Print Network [OSTI]

    Spead, Benjamin, 1978-

    2004-01-01T23:59:59.000Z

    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 ...

  6. Proceedings of the Genetic and Evolutionary Computation Conference, San Francisco, CA, 2001 Combining Genetic Algorithms and Case-Based Reasoning for Genetic

    E-Print Network [OSTI]

    Kansas, University of

    One important research issue in building a case-based reasoning system is the collection of cases as the system runs. We propose to use genetic algorithms to gen- erate useful cases since there is not any to collecting cases: (1) adaptation from existing databases, (2) outcome of an automated or interactive problem

  7. Model-based performance monitoring: Review of diagnostic methods and chiller case study

    SciTech Connect (OSTI)

    Haves, Phil; Khalsa, Sat Kartar

    2000-05-01T23:59:59.000Z

    The paper commences by reviewing the variety of technical approaches to the problem of detecting and diagnosing faulty operation in order to improve the actual performance of buildings. The review covers manual and automated methods, active testing and passive monitoring, the different classes of models used in fault detection, and methods of diagnosis. The process of model-based fault detection is then illustrated by describing the use of relatively simple empirical models of chiller energy performance to monitor equipment degradation and control problems. The CoolTools(trademark) chiller model identification package is used to fit the DOE-2 chiller model to on-site measurements from a building instrumented with high quality sensors. The need for simple algorithms to reject transient data, detect power surges and identify control problems is discussed, as is the use of energy balance checks to detect sensor problems. The accuracy with which the chiller model can be expected! to predict performance is assessed from the goodness of fit obtained and the implications for fault detection sensitivity and sensor accuracy requirements are discussed. A case study is described in which the model was applied retroactively to high-quality data collected in a San Francisco office building as part of a related project (Piette et al. 1999).

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

    SciTech Connect (OSTI)

    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

    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.

  9. Case Study: Soft Error Rate Analysis in Storage Systems Brian Mullins, Hossein Asadi, Mehdi B. Tahoori, David Kaeli

    E-Print Network [OSTI]

    Kaeli, David R.

    Case Study: Soft Error Rate Analysis in Storage Systems Brian Mullins, Hossein Asadi, Mehdi B Soft errors due to cosmic particles are a growing relia- bility threat for VLSI systems. In this paper we analyze the soft error vulnerability of FPGAs used in storage systems. Since the reliability

  10. Case Study: Soft Error Rate Analysis in Storage Systems Brian Mullins, Hossein Asadi, Mehdi B. Tahoori, David Kaeli

    E-Print Network [OSTI]

    Kaeli, David R.

    Case Study: Soft Error Rate Analysis in Storage Systems Brian Mullins, Hossein Asadi, Mehdi B the soft error vulnerability of FPGAs used in storage systems. Since the reliability requirements of such systems play a critical role in overall system reliability. We have val­ idated soft error projections

  11. Strategic backdrop analysis for fossil fuel planning. Task 1. Default Case. Report 468-117-07/02

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    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. (DMC)

  12. BRAIN AND LANGUAGE 20, 305-328 (1983) An Analysis of Writing in a Case of Deep Dyslexia

    E-Print Network [OSTI]

    Caramazza, Alfonso

    BRAIN AND LANGUAGE 20, 305-328 (1983) An Analysis of Writing in a Case of Deep Dyslexia KAREN A) that the defining symptoms of deep dyslexia will be observed in responses to any task which requires lexical process which normally functions to prevent decay of information from a Graphemic Buffer. Deep dyslexia

  13. Strategic backdrop analysis for fossil fuel planning. Task 1. Default Case. Report 468-117-07/01

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    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 and 2025. Residential, commercial, and industrial energy demands are forecast as well as the impacts of energy technology implementation and market penetration using a set of energy technology assumptions. (DMC)

  14. Towards a systematic analysis of cluster computing log data: the case of IBM BlueGene/Q

    E-Print Network [OSTI]

    Towards a systematic analysis of cluster computing log data: the case of IBM BlueGene/Q Alina S^irbu, Ozalp Babaoglu Department of Computer Science and Engineering, University of Bologna Mura Anteo Zamboni and complexity of managing large comput- ing infrastructures has been on the rise. Automating management actions

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

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    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.

  16. CYBER THREAT ANALYSIS A KEY ENABLING TECHNOLOGY FOR THE OBJECTIVE FORCE (A CASE STUDY IN NETWORK INTRUSION DETECTION)

    E-Print Network [OSTI]

    Kumar, Vipin

    60000 90 91 92 93 94 95 96 97 98 99 00 01 Today computers control power, oil and gas deliveryCYBER THREAT ANALYSIS ­ A KEY ENABLING TECHNOLOGY FOR THE OBJECTIVE FORCE (A CASE STUDY IN NETWORK-of-systems technologies will enable decisive maneuver, both horizon- tal and vertical, during day and night, and in all

  17. Prevalence and contribution of BRCA1 mutations in breast cancer and ovarian cancer: Results from three US population-based case-control studies of ovarian cancer

    SciTech Connect (OSTI)

    Whittemore, A.S.; Gong, G.; Itnyre, J. [Stanford Univ. School of Medicine, CA (United States)

    1997-03-01T23:59:59.000Z

    We investigate the familial risks of cancers of the breast and ovary, using data pooled from three population-based case-control studies of ovarian cancer that were conducted in the United States. We base estimates of the frequency of mutations of BRCA1 (and possibly other genes) on the reported occurrence of breast cancer and ovarian cancer in the mothers and sisters of 922 women with incident ovarian cancer (cases) and in 922 women with no history of ovarian cancer (controls). Segregation analysis and goodness-of-fit testing of genetic models suggest that rare mutations (frequency .0014; 95% confidence interval .0002-.011) account for all the observed aggregation of breast cancer and ovarian cancer in these families. The estimated risk of breast cancer by age 80 years is 73.5% in mutation carriers and 6.8% in noncarriers. The corresponding estimates for ovarian cancer are 27.8% in carriers and 1.8% in noncarriers. For cancer risk in carriers, these estimates are lower than those obtained from families selected for high cancer prevalence. The estimated proportion of all U.S. cancer diagnoses, by age 80 years, that are due to germ-line BRCA1 mutations is 3.0% for breast cancer and 4.4% for ovarian cancer. Aggregation of breast cancer and ovarian cancer was less evident in the families of 169 cases with borderline ovarian cancers than in the families of cases with invasive cancers. Familial aggregation did not differ by the ethnicity of the probands, although the number of non-White and Hispanic cases (N = 99) was sparse. 14 refs., 3 figs., 6 tabs.

  18. automated voxel-based analysis: Topics by E-print Network

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

    Approach to Sensor Selection- prehensive automated Failure Modes and Effects Analysis (FMEA) using qualitative model based reasoning au- tonomous aircraft. Automated failure mode...

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

    E-Print Network [OSTI]

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

    2012-01-01T23:59:59.000Z

    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...

  20. Formal Safety analysis of a radio-based railroad crossing using Deductive Cause-Consequence

    E-Print Network [OSTI]

    Reif, Wolfgang

    and effects analysis (FMEA) and fault tree analysis (FTA). We apply the method to a real world case study like FMEA [10], FMECA [4] and FTA [3]. The logical framework of DCCA may be used to rigorously verify of what can by analyzed) than traditional FMEA. We show, that the results of DCCA have the same semantics

  1. Model-Based Control of Nonlinear Systems Subject to Sensor Data Losses: A Chemical Process Case Study

    E-Print Network [OSTI]

    Sontag, Eduardo

    Model-Based Control of Nonlinear Systems Subject to Sensor Data Losses: A Chemical Process Case, Los Angeles, CA 90095-1592, USA, davidmps@ucla.edu, pdc@seas.ucla.edu. Controller Process x Data feedback control of nonlinear uncertain systems subject to sensor data losses. We compare three different

  2. Imaging-based thermal modelling and reverse engineering of as-built automotive components: A case study

    E-Print Network [OSTI]

    Koschan, Andreas

    Imaging-based thermal modelling and reverse engineering of as-built automotive components: A case. Further, we show results of immersing the reverse- engineered mesh in the thermal simulation environment modeling of vehicle components. Keywords: reverse engineering; thermal imaging; thermal simulation

  3. A Case Study on the Model-Based Design and Integration of Automotive Cyber-Physical Systems

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    A Case Study on the Model-Based Design and Integration of Automotive Cyber-Physical Systems Di--Cyber-physical systems (CPS), such as automotive systems, are very difficult to design due to the tight interactions of an integrated automotive control system. The system is composed of two independently designed controllers

  4. Exploring potential R&D collaboration partners through patent analysis based on bibliographic coupling and latent semantic analysis

    E-Print Network [OSTI]

    Park, I.; Jeong, Y.; Yoon, B.; Mortara, L.

    2014-10-22T23:59:59.000Z

    on the citation relationship using patent bibliographic information. Second, latent semantic analysis is utilized based on semantic similarity using patent textual information. The fuel cell membrane electrode assembly (MEA) technology field is selected...

  5. Knowledge-base for the new human reliability analysis method, A Technique for Human Error Analysis (ATHEANA)

    SciTech Connect (OSTI)

    Cooper, S.E. [Science Application International Corp., Reston, VA (United States); Wreathall, J. [John Wreathall & Co., Dublin, OH (United States); Thompson, C.M., Drouin, M. [Nuclear Regulatory Commission, Washington, DC (United States); Bley, D.C. [Buttonwood Consulting, Inc., Oakton, VA (United States)

    1996-10-01T23:59:59.000Z

    This paper describes the knowledge base for the application of the new human reliability analysis (HRA) method, a ``A Technique for Human Error Analysis`` (ATHEANA). Since application of ATHEANA requires the identification of previously unmodeled human failure events, especially errors of commission, and associated error-forcing contexts (i.e., combinations of plant conditions and performance shaping factors), this knowledge base is an essential aid for the HRA analyst.

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

    SciTech Connect (OSTI)

    Melendez, M.

    2007-05-17T23:59:59.000Z

    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.

  7. Tariff-based analysis of commercial building electricity prices

    E-Print Network [OSTI]

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

    2008-01-01T23:59:59.000Z

    this analysis. For the energy consumption data, within eachenergy consumption, for January and July, for the CBECS data. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4]. The billing data include energy consumption, demand and

  8. analysis methodology based: Topics by E-print Network

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

    ...9 1.3.2 Full 3D TomographyA UNIFIED METHODOLOGY FOR SEISMIC WAVEFORM ANALYSIS AND INVERSION by Po Chen A Dissertation program for tomgraphic...

  9. Analysis of Heat Transfer in Metal Hydride Based Hydrogen Separation

    SciTech Connect (OSTI)

    Fleming, W.H. Jr.

    1999-10-20T23:59:59.000Z

    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.

  10. Psychosocial Modeling of Insider Threat Risk Based on Behavioral and Word Use Analysis

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Kangas, Lars J.; Noonan, Christine F.; Brown, Christopher R.; Ferryman, Thomas A.

    2013-10-01T23:59:59.000Z

    In many insider crimes, managers and other coworkers observed that the offenders had exhibited signs of stress, disgruntlement, or other issues, but no alarms were raised. Barriers to using such psychosocial indicators include the inability to recognize the signs and the failure to record the behaviors so that they can be assessed. A psychosocial model was developed to assess an employee’s behavior associated with an increased risk of insider abuse. The model is based on case studies and research literature on factors/correlates associated with precursor behavioral manifestations of individuals committing insider crimes. A complementary Personality Factor modeling approach was developed based on analysis to derive relevant personality characteristics from word use. Several implementations of the psychosocial model were evaluated by comparing their agreement with judgments of human resources and management professionals; the personality factor modeling approach was examined using email samples. If implemented in an operational setting, these models should be part of a set of management tools for employee assessment to identify employees who pose a greater insider threat.

  11. A Novel Wavelet Transform Based Transient Current Analysis for Fault Detectionand Localization *

    E-Print Network [OSTI]

    Bhunia, Swarup

    25.2 A Novel Wavelet Transform Based Transient Current Analysis for Fault Detectionand Localization. In this paper, we present a novel integrated method for fault detection and localization using wavelet transform based IDD waveform analysis. The time-frequency resolu- tion property of wavelet transform helps us

  12. Formal Analysis and Validation of Continuous-Time Markov Chain based System Level Power Management Strategies

    E-Print Network [OSTI]

    Oxford, University of

    Formal Analysis and Validation of Continuous-Time Markov Chain based System Level Power Management that competitive analysis based power management strategies can be automatically analyzed for proving competitive bounds and for validating power management strate- gies using the SMV model checker. In this paper, we

  13. Formal Analysis and Validation of ContinuousTime Markov Chain based System Level Power Management Strategies

    E-Print Network [OSTI]

    Oxford, University of

    Formal Analysis and Validation of Continuous­Time Markov Chain based System Level Power Management that competitive analysis based power management strategies can be automatically analyzed for proving competitive bounds and for validating power management strate­ gies using the SMV model checker. In this paper, we

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

    SciTech Connect (OSTI)

    Polly, B.

    2011-09-01T23:59:59.000Z

    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.

  15. Alternatives to Energy FunctionBased Analysis of Recurrent Neural Networks

    E-Print Network [OSTI]

    Hassoun, Mohamad H.

    1 Alternatives to Energy Function­Based Analysis of Recurrent Neural Networks Mohamad H. Hassoun of analysis and design of recurrent neural networks using an energy function approach, as popularized, 1990]. Such type of analysis, though, usually imposes stringent and/or biologically unrealistic

  16. of Transportation Rigid Pavement Design and Analysis Web-Based Training Site

    E-Print Network [OSTI]

    Texas at Austin, University of

    Texas Department of Transportation Rigid Pavement Design and Analysis Web-Based Training Site Highway Administration Texas Department of Transportation, 2004 Rigid Pavement Design and Analysis Web for six computer programs pertaining mainly to the design and analysis of rigid pavements. The programs

  17. A network-based modeling framework for stakeholder analysis of China's energy conservation campaign

    E-Print Network [OSTI]

    de Weck, Olivier L.

    A network-based modeling framework for stakeholder analysis of China's energy conservation campaign Available online 13 July 2011 Keywords: Energy conservation Policy-making Stakeholder analysis Network, the stakeholder analysis of China's energy conservation campaign still has been under-developed. This paper

  18. Saltstone Disposal Facility Closure Cap Configuration and Degradation Base Case: Institutional Control to Pine Forest Scenario

    SciTech Connect (OSTI)

    Phifer, M.A.

    2004-03-19T23:59:59.000Z

    The Performance Assessment (PA) for the Saltstone Disposal Facility (SDF) is currently under revision. As part of the PA revision and as documented herein, the closure cap configuration has been reevaluated and closure cap degradation mechanisms and their impact upon infiltration through the closure cap have been evaluated for the institutional control to pine forest, land use scenario. This land use scenario is considered the base case land use scenario. This scenario assumes a 100-year institutional control period following final SDF closure during which the closure cap is maintained. At the end of institutional control, it is assumed that a pine forest succeeds the cap's original bamboo cover. Infiltration through the upper hydraulic barrier layer of the closure cap as determined by this evaluation will be utilized as the infiltration input to subsequent PORFLOW vadose zone contaminant transport modeling, which will also be performed as part of the PA revision. The impacts of pine forest succession, erosion, and colloidal clay migration as degradation mechanisms on the hydraulic properties of the closure cap layers over time have been estimated and the resulting infiltration through the closure cap has been evaluated. The primary changes caused by the degradation mechanisms that result in increased infiltration are the formation of holes in the upper GCL by pine forest succession and the reduction in the saturated hydraulic conductivity of the drainage layers due to colloidal clay migration into the layers. Erosion can also result in significant increases in infiltration if it causes the removal of soil layers, which provide water storage for the promotion of evapotranspiration. For this scenario, infiltration through the upper GCL was estimated at approximately 0.29 inches/year under initial intact conditions, it increased to approximately 11.6 inches/year at year 1000 in nearly a linear fashion, and it approached an asymptote of around 14.1 inches/year at year 1800 and thereafter. At year 1800, it was estimated that holes covered approximately 0.3 percent of the GCL due to root penetration, and that this resulted in an infiltration near that of typical background infiltration (i.e. as though the GCL were not there at all). This demonstrated that a very small area of holes essentially controlled the hydraulic performance of the GCL.

  19. SHAPE-BASED SEQUENTIAL MACHINE ANALYSIS Andrew Crews, Forrest Brewer

    E-Print Network [OSTI]

    Brewer, Forrest D.

    . Design options including the potential for pipelining and/or locally regenerating critical signals can, construction of a machine in the form of a feedback shift-register is a simple case of a shape constraint such as wire delay and communication power dissipation or skew, dominate the design objectives. Such state

  20. Statistical Analysis of the Fourth Case Study in Reverse Auction Research

    E-Print Network [OSTI]

    Bhalerao, Aneesh Madhao

    2011-10-21T23:59:59.000Z

    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...

  1. Shape-based Cost Analysis of Skeletal Parallel Programs 

    E-Print Network [OSTI]

    Hayashi, Yasushi

    This work presents an automatic cost-analysis system for an implicitly parallel skeletal programming language. Although deducing interesting dynamic characteristics of parallel programs (and in particular, run time) is ...

  2. analysis system based: Topics by E-print Network

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

    energy consumption and component stresses and instabilities. 1. FOREWORDS The micro-gas turbine based energy conversion systems represent one of the most recently developed...

  3. Building Information Modeling (BIM)-Based Daylighting Simulation and Analysis 

    E-Print Network [OSTI]

    Kota, S.; Haberl, J.S.; Clayton, M.; Yan, W.

    2014-01-01T23:59:59.000Z

    will be converted into daylighting models to run on the daylighting simulation engines. Once the architect defines the architectural model in CAD, a simulation expert creates the simulation input file to perform daylighting analysis. Each tool has its own way... the Radiance input file is created, different Radiance utilities are called using MS Windows BATCH scripting for doing a daylighting analysis [15]. In addition to AutoCAD, Radiance also has many utility programs that help in converting different geometry...

  4. Building Information Modeling (BIM)-Based Daylighting Simulation and Analysis

    E-Print Network [OSTI]

    Kota, S.; Haberl, J.S.; Clayton, M.; Yan, W.

    tools Radiance and DAYSIM. Keywords: Building Information Modeling, BIM, Daylighting Simulation, Radiance, DAYSIM 1 Introduction Building performance analyses are important aspects of designing sustainable buildings. One of the performance analyses...) with daylighting analysis tools (Radiance and DAYSIM as sample simulation tools, which are widely used to study the daylighting performance of buildings). 2 Literature review 2.1 Daylighting simulation tools Over the years many analysis tools have been...

  5. Type curve analysis for naturally fractured reservoirs (infinite-acting reservoir case): a new approach 

    E-Print Network [OSTI]

    Angel Restrepo, Juan Alejandro

    2000-01-01T23:59:59.000Z

    . The objectives of this work are as follows: First, we generated new type curves for the analysis of pressure drawdown and buildup tests performed in naturally fractured reservoirs. Next, we develop a systematic approach for the analysis and interpretation...

  6. One Work Analysis, Two Domains: A Display Information Requirements Case Study

    E-Print Network [OSTI]

    Cummings, M. L.

    2012-01-01T23:59:59.000Z

    d observations, among other techniques. Given the time and resources required, we examine how to generalize a work domain analysis technique, namely the hybrid Cognitive Task Analysis (hCTA) method across two domains in ...

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

    SciTech Connect (OSTI)

    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

    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)

  8. Performance analysis of a D-sequence based Direct Sequence CDMA system

    E-Print Network [OSTI]

    Koppelman, David M.

    Performance analysis of a D-sequence based Direct Sequence CDMA system S. Herlekar and S. Kak The performance of a D-sequence based Direct Sequence CDMA system over an additive white Gaussian noise (AWGN) channel is analyzed. The results indicate a superior performance for this system over a PN sequence based

  9. Comparison of MRI-based and CT/MRI fusion-based postimplant dosimetric analysis of prostate brachytherapy

    SciTech Connect (OSTI)

    Tanaka, Osamu [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan)]. E-mail: osa-mu@umin.ac.jp; Hayashi, Shinya [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan); Matsuo, Masayuki [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan); Sakurai, Kota [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan); Department of Urology, Gifu University School of Medicine, Gifu City (Japan); Nakano, Masahiro [Department of Urology, Gifu University School of Medicine, Gifu City (Japan); Maeda, Sunaho [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan); Kajita, Kimihiro R.T. [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan); Deguchi, Takashi [Department of Urology, Gifu University School of Medicine, Gifu City (Japan); Hoshi, Hiroaki [Department of Radiology, Gifu University School of Medicine, Gifu City (Japan)

    2006-10-01T23:59:59.000Z

    Purpose: The aim of this study was to compare the outcomes between magnetic resonance imaging (MRI)-based and computed tomography (CT)/MRI fusion-based postimplant dosimetry methods in permanent prostate brachytherapy. Methods and Materials: Between October 2004 and March 2006, a total of 52 consecutive patients with prostate cancer were treated by brachytherapy, and postimplant dosimetry was performed using CT/MRI fusion. The accuracy and reproducibility were prospectively compared between MRI-based dosimetry and CT/MRI fusion-based dosimetry based on the dose-volume histogram (DVH) related parameters as recommended by the American Brachytherapy Society. Results: The prostate volume was 15.97 {+-} 6.17 cc (mean {+-} SD) in MRI-based dosimetry, and 15.97 {+-} 6.02 cc in CT/MRI fusion-based dosimetry without statistical difference. The prostate V100 was 94.5% and 93.0% in MRI-based and CT/MRI fusion-based dosimetry, respectively, and the difference was statistically significant (p = 0.002). The prostate D90 was 119.4% and 114.4% in MRI-based and CT/MRI fusion-based dosimetry, respectively, and the difference was statistically significant (p = 0.004). Conclusion: Our current results suggested that, as with fusion images, MR images allowed accurate contouring of the organs, but they tended to overestimate the analysis of postimplant dosimetry in comparison to CT/MRI fusion images. Although this MRI-based dosimetric discrepancy was negligible, MRI-based dosimetry was acceptable and reproducible in comparison to CT-based dosimetry, because the difference between MRI-based and CT/MRI fusion-based results was smaller than that between CT-based and CT/MRI fusion-based results as previously reported.

  10. Myths and Barriers to the Introduction of Safety Cases in Space-Based Systems Chris W. Johnson (1), Derek A. Robins (2)

    E-Print Network [OSTI]

    Johnson, Chris

    possible space based applications revealed that many engineers view safety argumentation as a meansMyths and Barriers to the Introduction of Safety Cases in Space-Based Systems Chris W. Johnson (1) SAIC, Houston, Texas, USA. Abstract Safety cases provide high-level support for the development

  11. CHAPTER 7. BERYLLIUM ANALYSIS BY NON-PLASMA BASED METHODS

    SciTech Connect (OSTI)

    Ekechukwu, A

    2009-04-20T23:59:59.000Z

    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.

  12. Analysis of Energy Efficiency Program Impacts Based on Program Spending -

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta FeAuthorization|EnergyAnalysis ofAnalysis

  13. Case study as a teaching tool integrating design, energy, and economic analysis

    E-Print Network [OSTI]

    McBride, Jacquelin Spangler

    1984-01-01T23:59:59.000Z

    Architecture educators and students are challenging traditional methods of teaching technical subjects related to buildings, seeking new teaching tools and methods. The case method, developed by business and management ...

  14. Exploring Vector Fields with Distribution-based Streamline Analysis

    SciTech Connect (OSTI)

    Lu, Kewei; Chaudhuri, Abon; Lee, Teng-Yok; Shen, Han-Wei; Wong, Pak C.

    2013-02-26T23:59:59.000Z

    Streamline-based techniques are designed based on the idea that properties of streamlines are indicative of features in the underlying field. In this paper, we show that statistical distributions of measurements along the trajectory of a streamline can be used as a robust and effective descriptor to measure the similarity between streamlines. With the distribution-based approach, we present a framework for interactive exploration of 3D vector fields with streamline query and clustering. Streamline queries allow us to rapidly identify streamlines that share similar geometric features to the target streamline. Streamline clustering allows us to group together streamlines of similar shapes. Based on users selection, different clusters with different features at different levels of detail can be visualized to highlight features in 3D flow fields. We demonstrate the utility of our framework with simulation data sets of varying nature and size.

  15. Tariff-based analysis of commercial building electricity prices

    E-Print Network [OSTI]

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

    2008-01-01T23:59:59.000Z

    LBNL-55551 EIA-based average revenues by sales (in c/kWh)in region R of ownership type P (from EIA data) Set of allutilities in region R (from EIA data) Set of sample

  16. Security Analysis and Improvement Model for Web-based Applications

    E-Print Network [OSTI]

    Wang, Yong

    2010-01-14T23:59:59.000Z

    , 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...

  17. An Analysis of TRL-Based Cost and Schedule Models

    E-Print Network [OSTI]

    Kenley, C. Robert

    2012-04-30T23:59:59.000Z

    The GAO's, NASA's, and the DoD's adoption of the technology readiness level (TRL) scale to improve technology management has led to the emergence of many TRL-based models that are used to monitor technology maturation, ...

  18. HMM-based neural spike analysis Michael C. Nechyba

    E-Print Network [OSTI]

    Slatton, Clint

    · Generating training data · Results · Current/future work #12;Classifier block diagram s O Ot N­ 1+ Ot N­ 2+ Ot 1­ Ot, , ,{ }= P O s( ) ... vt P O m( ) m signal-to-symbol conversion HMM (stationary) HMM (moving procedures) 7. Human control strategy analysis (e.g. driving) 8. Robot control (e.g. autonomous driving) 9

  19. Online analysis and visualization of agent based Arnaud Grignard1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    is used to study many kind of com- plex systems in different fields such as biology, ecology, or sociology to extract interesting dy- namics in the simulations thanks to the use of analysis tools, data-mining them evolve during simulations. In addition, statistical or data-mining tools are mostly available

  20. Hydrodynamic analysis of mooring lines based on optical tracking experiments

    E-Print Network [OSTI]

    Yang, Woo Seuk

    2009-05-15T23:59:59.000Z

    Hydrodynamic Force Coefficients.............................................................................11 1.2.2.1. Deterministic Approach .............................................12 1.2.2.2. Stochastic Approach... Page 2.6. Estimation of Force Transfer Coefficients ...........................................50 2.6.1. Fourier Analysis ......................................................................51 2.6.2. Least Square Minimization...

  1. Accessibility analysis for telecommuting: a GIS-based approach

    E-Print Network [OSTI]

    Chen, Chun

    2001-01-01T23:59:59.000Z

    and policy-makers. Research on telecommuting as one solution to reducing travel demand has been active in the past few years. However, most research focuses on analysis of the impact of telecommuting on vehicle-mobility rather than on individual accessibility...

  2. Pretenuring Based on Escape Analysis mjump@cs.utexas.edu

    E-Print Network [OSTI]

    Jump, Maria

    involved pro- #12;ling; our approach instead employs static analysis. 1. INTRODUCTION Garbage collection research area [2, 3, 7, 8]. The generational copying collector is a widely adopted type of garbage]. The memory allocator allocates all objects into the nurs- ery, and the garbage collector collects the nursery

  3. Product line-up design based on preference measurement : a case study on TV industry

    E-Print Network [OSTI]

    Park, Chang Bae, S.M. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    Sony, in 2010, introduced innovative product line-up setting process for its TV, using the technique of market segmentation and conjoint analysis. This practice was expected to increase its sales compared to traditional ...

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

    SciTech Connect (OSTI)

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

    2012-08-01T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Cappers, Peter

    2009-01-01T23:59:59.000Z

    Analysis 4.5 Energy Efficiency Business Models: Conceptual38 Figure 23. Energy efficiency business model conceptualmanagement. Energy Efficiency Business Models: Conceptual

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

    E-Print Network [OSTI]

    Cappers, Peter

    2009-01-01T23:59:59.000Z

    costs. Energy Efficiency Incentives Analysis risks of under-Shareholder Risk/Reward Incentive Mechanism for Energyof the energy efficiency effort and the risk to the utility

  7. Weighing the Costs and Benefits of Renewables Portfolio Standards: A Comparative Analysis of State-Level Policy Impact Projections

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2007-01-01T23:59:59.000Z

    Wind Power Capital Cost Assumptions (Base-Case Analysis).27. Wind Power Capital Cost Assumptions (Base-Case Analysis)wind cost assumptions employed in most of the RPS analyses

  8. Feature-based Analysis of Plasma-based Particle Acceleration Data

    E-Print Network [OSTI]

    Ruebel, Oliver

    2014-01-01T23:59:59.000Z

    Abstract Plasma-based particle accelerators can produce andconventional particle accelerators, providing a potentialcost of conventional particle accelerators. To facilitate

  9. Terrestrial Remotely Sensed Imagery in Support of Public Health: New Avenues of Research Using Object-Based Image Analysis

    E-Print Network [OSTI]

    Kelly, Maggi

    2011-01-01T23:59:59.000Z

    segmentation-based analysis of geospatial data cananalysis of disease ecology and risk: An example using object-based classification techniques. Geospatial

  10. EXPERIMENTATION AND ANALYSIS FOR UNIFIED PACKET-BASED WIRELESS NETWORKS

    E-Print Network [OSTI]

    Lockwood, John W.

    - rent state of wireless data communication, including the setup of an operating wireless testbed designed to address many of these issues. 1 Introduction The current state of wireless communications can be di- vided into two broad categories based on the designed purpose of particular devices. These two

  11. Reliability sensitivity analysis based on probability distribution perturbation with application to CO2 storage

    E-Print Network [OSTI]

    Boyer, Edmond

    to CO2 storage Ekaterina Sergienkoa,b , Paul Lema^itrec,d , Aur´elie Arnaudc , Daniel Busbyb , Fabrice a computationally expensive simulation code for evaluating the failure probability such as the CO2 storage risk analysis. An application of the method to a synthetic CO2 storage case study is provided together with some

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

    E-Print Network [OSTI]

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

    2012-01-01T23:59:59.000Z

    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...

  13. Analysis of Path Planning Algorithms : a Formal Verification-based Approach Arash Khabbaz Saberi1

    E-Print Network [OSTI]

    Groote, Jan Friso

    Analysis of Path Planning Algorithms : a Formal Verification-based Approach Arash Khabbaz Saberi1, The Netherlands a.khabbaz.saberi@student.tue.nl, j.f.groote@tue.nl, s.keshishzadeh@tue.nl Abstract

  14. InformationTheoretic Analysis of Privacy Protection for Noisy Identification Based on Soft Fingerprinting

    E-Print Network [OSTI]

    Genève, Université de

    challenges for the construction of practical codes. Alternatively, the order statistics approaches guarInformation­Theoretic Analysis of Privacy Protection for Noisy Identification Based on Soft and distinctive content description that allows to overcome fundamental sensitivity restrictions of classical

  15. Open source software maturity model based on linear regression and Bayesian analysis

    E-Print Network [OSTI]

    Zhang, Dongmin

    2009-05-15T23:59:59.000Z

    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...

  16. STAMP-Based Analysis of a Refinery Overflow Accident Nancy Leveson, Margaret Stringfellow, and John Thomas

    E-Print Network [OSTI]

    Leveson, Nancy

    1 STAMP-Based Analysis of a Refinery Overflow Accident Nancy Leveson, Margaret Stringfellow, and John Thomas As an example of STAMP, we have taken an accident report produced for a real refinery

  17. Cell Ashing for Trace Element Analysis: A New Approach Based on Ultraviolet/Ozone

    E-Print Network [OSTI]

    Gilbert, Pupa Gelsomina De Stasio

    : synchrotron spectromicroscopy; micro- chemical analysis; MEPHISTO; ashing; incineration; trace element. Ashing ashing is based on high-temperature incineration or on the exposure to oxygen plasma (1­ 4). We adopted

  18. On a tensor-based finite element model for the analysis of shell structures 

    E-Print Network [OSTI]

    Arciniega Aleman, Roman Augusto

    2006-04-12T23:59:59.000Z

    In the present study, we propose a computational model for the linear and nonlinear analysis of shell structures. We consider a tensor-based finite element formulation which describes the mathematical shell model in a ...

  19. Collective action for community-based hazard mitigation: a case study of Tulsa project impact 

    E-Print Network [OSTI]

    Lee, Hee Min

    2005-11-01T23:59:59.000Z

    During the past two decades, community-based hazard mitigation (CBHM) has been newly proposed and implemented as an alternative conceptual model for emergency management to deal with disasters comprehensively in order to ...

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

    E-Print Network [OSTI]

    Haeffner, Melissa (Melissa Ann)

    2010-01-01T23:59:59.000Z

    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 ...

  1. Case-study of a coal gasification-based energy supply system for China

    E-Print Network [OSTI]

    Engineering, Tsinghua University, 100084 Beijing, China ``Syngas city'' (SC) is a concept for a coal. Introduction ``Syngas city'' (SC) is a concept for coal gasification- based energy supply systems that deploy

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG Contracting Jump to:Echo,GEF Jump to: navigation,GWTrade Analysis

  3. Analysis of Geothermal Reservoir Stimulation using Geomechanics-Based

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1Albuquerque, NMPerformance |Should2.1.0.301Stochastic Analysis of

  4. Analysis of Geothermal Reservoir Stimulation using Geomechanics-Based

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1Albuquerque, NMPerformance |Should2.1.0.301Stochastic Analysis

  5. Design and analysis of an Extended Kalman Filter based navigator for an autonomous underwater vehicle 

    E-Print Network [OSTI]

    Just, Bradley Eugene

    1994-01-01T23:59:59.000Z

    DESIGN AND ANALYSIS OF AN EXTENDED KALMAN FILTER BASED NAVIGATOR FOR AN AUTONOMOUS UNDERWATER VEHICLE A Thesis by BRADLEY EUGENE JUST Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1994 Major Subject: Mechanical Engineering DESIGN AND ANALYSIS OF AN EXTENDED KALMAN FILTER BASED NAVIGATOR FOR AN AUTONOMOUS UNDERWATER VEHICLE A Thesis by BRADLEY EUGENE JUST Submitted to Texas A...

  6. Design and analysis of an Extended Kalman Filter based navigator for an autonomous underwater vehicle

    E-Print Network [OSTI]

    Just, Bradley Eugene

    1994-01-01T23:59:59.000Z

    DESIGN AND ANALYSIS OF AN EXTENDED KALMAN FILTER BASED NAVIGATOR FOR AN AUTONOMOUS UNDERWATER VEHICLE A Thesis by BRADLEY EUGENE JUST Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1994 Major Subject: Mechanical Engineering DESIGN AND ANALYSIS OF AN EXTENDED KALMAN FILTER BASED NAVIGATOR FOR AN AUTONOMOUS UNDERWATER VEHICLE A Thesis by BRADLEY EUGENE JUST Submitted to Texas A...

  7. Transport Analysis of Trace Tritium Experiments on JET using TRANSP Code and Comparison with Theory-Based Transport Models

    E-Print Network [OSTI]

    Transport Analysis of Trace Tritium Experiments on JET using TRANSP Code and Comparison with Theory-Based Transport Models

  8. Evaluation of the Energy-Related Inventions Program. Volume 1. Analysis of case studies of supported projects

    SciTech Connect (OSTI)

    Rorke, M.G.; Bronfman, L.M.; Soderstrom, E.J.

    1983-02-01T23:59:59.000Z

    This volume reports the analysis of the results of 30 case studies of grantees funded by the Energy-Related Inventions Program (ERIP). ERIP is one of several federal programs supporting invention and innovation in the private sector. It is a relatively small program with an annual budget of $5 to 6 million that focuses its attention on the independent inventor or small business with an energy-related invention. Support to the inventory or small business comes primarily in the form of a grant. The overall goal of the program is to stimulate innovation by individuals and small businesses and to assist in the development of promising energy-related inventions for eventual commercialization. This volume is an aggregation and synthesis of the data gathered in the case studies. (Volume 2 contains the case studies.) The case studies explore in-depth the characteristics, perceptions, and experiences of inventors and agency personnel who have participated in the ERIP. Thus they are a rich source of information for use in evaluating the process by which the program's goals and objectives are implemented and for evaluating the program;s usefulness in producing the results intended by the legislative mandate.

  9. Stochastic Turing patterns: analysis of compartment-based approaches

    E-Print Network [OSTI]

    Cao, Yang

    2013-01-01T23:59:59.000Z

    Turing patterns can be observed in reaction-diffusion systems where chemical species have different diffusion constants. In recent years, several studies investigated the effects of noise on Turing patterns and showed that the parameter regimes, for which stochastic Turing patterns are observed, can be larger than the parameter regimes predicted by deterministic models, which are written in terms of partial differential equations for species concentrations. A common stochastic reaction-diffusion approach is written in terms of compartment-based (lattice-based) models, where the domain of interest is divided into artificial compartments and the number of molecules in each compartment is simulated. In this paper, the dependence of stochastic Turing patterns on the compartment size is investigated. It has previously been shown (for relatively simpler systems) that a modeller should not choose compartment sizes which are too small or too large, and that the optimal compartment size depends on the diffusion consta...

  10. Reverse Auction Bidding: An Analysis of Case Study for Bid Timing

    E-Print Network [OSTI]

    Kumar, Apoorv

    2014-08-12T23:59:59.000Z

    . The bid timing data from previous studies shows that the bid arrival times follows a Poisson process. This study aims to confirm the previous investigation that the bid timing data from the Reverse Auction Bidding case studies at TAMU fits the non...

  11. 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

  12. An approach to the teaching of Korean particles based on case grammar

    E-Print Network [OSTI]

    Kang, Joo Ok

    1975-01-01T23:59:59.000Z

    in the following sentences: f. John-i sakwa-lil mek-ess-ta. s. p. apple o. p. eat past Stat 'John ate an apples ' g, John-in sakwa-ill orpe mek-ess-ta. eat 'John ate an apples ' Chomskyan analysis might argue that in of sentence (g) has the same...

  13. SAT-based Termination Analysis for Java Bytecode with AProVE

    E-Print Network [OSTI]

    Ábrahám, Erika

    SAT-based Termination Analysis for Java Bytecode with AProVE Carsten Fuhs LuFG Informatik 2, RWTH solving engines for the search problems in automated termination analysis. Consequently, the performance of current termination tools heavily relies on the speed of modern SAT solvers on the corresponding SAT

  14. Expert Recommendation based on Social Drivers, Social Network Analysis, and Semantic Data Representation

    E-Print Network [OSTI]

    Fox, Mark S.

    Expert Recommendation based on Social Drivers, Social Network Analysis, and Semantic Data-Theoretical Multi-Level (MTML) framework which investigates social drivers for network formation in the communities computational techniques from social network analysis and representational techniques from the semantic web

  15. Energy analysis of substorms based on remote sensing techniques, solar wind measurements, and geomagnetic indices

    E-Print Network [OSTI]

    Ã?stgaard, Nikolai

    Energy analysis of substorms based on remote sensing techniques, solar wind measurements wind Citation: Ã?stgaard, N., G. Germany, J. Stadsnes, and R. R. Vondrak, Energy analysis of substorms satellite have been used to examine the energy deposition in the Northern Hemisphere by precipitating

  16. Open cycle heat pump development for local resource use Phase II district heating case study analysis: Progress report, 1 January 1989--30 March 1989

    SciTech Connect (OSTI)

    DiBella, F.; Becker, F.E.; Glick, J.

    1989-05-01T23:59:59.000Z

    A district heating system is proposed that uses low-level waste- energy sources, and a quasi open-cycle steam heat pump as a means of upgrading the energy in the form of hot water to use as a transport medium in the system. the use of a water-based, open-cycle heat pump appears to be extremely well suited in terms of its potential thermodynamic performance, cost, and environmental safety compared to more typical organic gased closed cycle systems. The Phase II case study provides a detailed analysis of a district heating system that utilizes the open cycle steam heat pump concept developed in Phase I. This quarterly report describes the energy audit performed on the heat source and heat sink.

  17. Analysis of Airport Performance using Surface Surveillance Data: A Case Study of BOS

    E-Print Network [OSTI]

    Balakrishnan, Hamsa

    Detailed surface surveillance datasets from sources such as the Airport Surface Detection Equipment, Model-X (ASDE-X) have the potential to be used for analysis of airport operations, in addition to their primary purpose ...

  18. An Intersectional Analysis of Visual Media: A Case Study of Diesel Advertisements

    E-Print Network [OSTI]

    Barnum, Anthony J.; Zajicek, Anna M.

    2008-01-01T23:59:59.000Z

    that the application of the intersectional approach leads to more complex and adequate understandings of how identities and power relations are constructed in visual media. Towards this end, we conduct an intersectional analysis of Diesel advertisements using...

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    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...

  20. Pressure transient test analysis of vuggy naturally fractured carbonate reservoir: field case study

    E-Print Network [OSTI]

    Ajayi, Babatunde Tolulope

    2009-06-02T23:59:59.000Z

    Well pressure transient analysis is widely used in reservoir management to obtain reservoir information needed for reservoir simulation, damage identification, well optimization and stimulation evaluation. The main objective of this project...

  1. Virtual representation and analysis of structural systems, presented with a case study

    E-Print Network [OSTI]

    Farr, Justin Lane

    2001-01-01T23:59:59.000Z

    Simulation Software. Finite Element Analysis (FEA). Findley' s Parameter. . . 4 5 . 5 . 6 PROCEDURE. . 3. 1 3. 2 3. 3 3. 4 Geometric and Material Properties. Traffic Loading. 3. 2. 1 Load Magnitudes. . . . , . . . . . 3. 2. 1. 1 Selecting WIM... Data. 3. 2. 1. 2 Organizing WIM Data. 3. 2. 2 Load Frequency . . 3. 2. 2. 1 CORSIM Parameters. . . 3. 2. 2. 2 CORSIM Traffic Assembler. . . . . . . . . . . . Member S tresses. 3. 3. 1 Finite Element Analysis. 3, 3. 1. 1 Computing Hardware...

  2. SPEECH ENHANCEMENT IN CAR NOISE ENVIRONMENT BASED ON AN ANALYSIS-SYNTHESIS APPROACH USING HARMONIC NOISE MODEL

    E-Print Network [OSTI]

    So, Hing-Cheung

    SPEECH ENHANCEMENT IN CAR NOISE ENVIRONMENT BASED ON AN ANALYSIS- SYNTHESIS APPROACH USING HARMONIC Kong ABSTRACT This paper presents a speech enhancement method based on an analysis-synthesis framework analysis-synthesis based speech enhancement system, and give details in HNM modeling, parameter estimation

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032)8Li (59AJ76) (See theDoctoral20ALSNewstt^ \ #ANUDlSiTM-40 Load Flow

  4. Phylogenetic analysis of paraneopteran orders (Insecta: Neoptera) based on forewing base structure,

    E-Print Network [OSTI]

    Yoshizawa, Kazunori

    , with comments on monophyly of Auchenorrhyncha (Hemiptera) K A Z U N O R I Y O S H I Z A W A and T O Y O H E I, Hemiptera and Thysanoptera) were analysed based on the morphology of forewing base structure. Monophyly of Paraneoptera was supported by nine autapomorphies, monophyly of Condylognatha (= Thysanoptera + Hemiptera

  5. Beamforming in MISO Systems: Empirical Results and EVM-based Analysis

    E-Print Network [OSTI]

    1 Beamforming in MISO Systems: Empirical Results and EVM-based Analysis Melissa Duarte, Ashutosh-based study of beamforming Multiple Input Single Output (MISO) systems. We analyze the performance of beamforming MISO systems taking into account implementation complexity and effects of imperfect channel

  6. Reduction of Ground-Based Sensor Sites for Spatio-Temporal Analysis of Aerosols

    E-Print Network [OSTI]

    Vucetic, Slobodan

    Reduction of Ground-Based Sensor Sites for Spatio- Temporal Analysis of Aerosols Vladan in this study is estimation of an important property of atmosphere, called Aerosol Optical Depth (AOD). Remote of spatio- temporal aerosol patterns on a global scale. Ground-based AOD estimation is more accurate

  7. On the Formal Analysis of a Spatio-Temporal Role-Based Access Control Model

    E-Print Network [OSTI]

    Ray, Indrakshi

    On the Formal Analysis of a Spatio-Temporal Role-Based Access Control Model Manachai Toahchoodee. For crit- ical applications, a model for spatio-temporal-based access control is needed that increases. Consequently, researchers have proposed various spatio-temporal access control models that are useful

  8. FOUNDATION, ANALYSIS, AND NUMERICAL INVESTIGATION OF A VARIATIONAL NETWORK-BASED MODEL FOR RUBBER

    E-Print Network [OSTI]

    Boyer, Edmond

    FOUNDATION, ANALYSIS, AND NUMERICAL INVESTIGATION OF A VARIATIONAL NETWORK-BASED MODEL FOR RUBBER, many models based on polymer chain statistics have been proposed to describe rubber elasticity. Recently, Alicandro, Cicalese, and the first author rigorously derived a continuum theory of rubber

  9. NONLINEAR ANALYSIS OF RUBBER-BASED POLYMERIC MATERIALS WITH THERMAL RELAXATION MODELS

    E-Print Network [OSTI]

    Melnik, Roderick

    NONLINEAR ANALYSIS OF RUBBER-BASED POLYMERIC MATERIALS WITH THERMAL RELAXATION MODELS R. V. N Queensland, Australia Using mathematical modeling and computer simulation, nonlinear dynamics of rubber in the thermomechanical system. 1. INTRODUCTION The effect of thermal relaxation in rubber-based polymers is one

  10. Save-IDE A Tool for Design, Analysis and Implementation of Component-Based Embedded Systems

    E-Print Network [OSTI]

    Becker, Steffen

    Save-IDE ­ A Tool for Design, Analysis and Implementation of Component-Based Embedded Systems S.nystrom, thomas.nolte, paul.pettersson, ivica.crnkovic}@mdh.se Abstract The paper presents Save-IDE, an Integrated Develop- ment Environment for the development of component-based embedded systems. Save-IDE supports

  11. DYNAMIC SECURITY ANALYSIS OF ELECTRIC POWER SYSTEMS: PASSIVITY-BASED APPROACH AND POSITIVE INVARIANCE APPROACH

    E-Print Network [OSTI]

    Shen, Jinglai

    DYNAMIC SECURITY ANALYSIS OF ELECTRIC POWER SYSTEMS: PASSIVITY-BASED APPROACH AND POSITIVE in modern power system opera- tion. With the aid of analytic tools for large-scale and hybrid systems, this paper proposes two new safety verification methods for power systems. The first method is based

  12. analysis web-based interface: Topics by E-print Network

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

    analysis web-based interface First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Web-based Interface in...

  13. Suburban recreation subdivisions in Montgomery County, Texas - a case study analysis

    E-Print Network [OSTI]

    Watt, Carson Earl

    1969-01-01T23:59:59.000Z

    affect subdivision development in Montgomery County, Texas, and through a case study, to examine some of the relationships among the factors concerning recreation facilities and population characteristics in a recrea- tion subdivision. Specific..., management, and operation of the facilities Montgomery County is a rapidly urbanizing community located in the Standard Metropolitan Statistical Area o. f Bouston. Previously a rural community, improved access through Tnterstate 45 and U. S. 59...

  14. A Framework for Constraint-based Collaborative Web Service Applications and a Travel Application Case Study

    E-Print Network [OSTI]

    Madiraju, Praveen

    Interface (API) employing which developers can create domain-specific collaborative applications based on Web services without much effort. The API not only provides methods to integrate independent Web interdependencies among the rest of the entities. In the current prototype of SyDLink module, a coordination link

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

    E-Print Network [OSTI]

    Polly, David

    )-based transport model. The study site is a contaminated groundwater aquifer underneath a uranium mill tailings groundwater for 1600 years. The coupled model shows that groundwater­sediment interactions result in multiple. Keywords: Geochemical modeling; Contaminant; Transport; Coupled processes 1. Introduction Accurate

  16. A new algorithm for wavelet-based heart rate variability analysis

    E-Print Network [OSTI]

    García, Constantino A; Vila, Xosé; Márquez, David G

    2014-01-01T23:59:59.000Z

    One of the most promising non-invasive markers of the activity of the autonomic nervous system is Heart Rate Variability (HRV). HRV analysis toolkits often provide spectral analysis techniques using the Fourier transform, which assumes that the heart rate series is stationary. To overcome this issue, the Short Time Fourier Transform is often used (STFT). However, the wavelet transform is thought to be a more suitable tool for analyzing non-stationary signals than the STFT. Given the lack of support for wavelet-based analysis in HRV toolkits, such analysis must be implemented by the researcher. This has made this technique underutilized. This paper presents a new algorithm to perform HRV power spectrum analysis based on the Maximal Overlap Discrete Wavelet Packet Transform (MODWPT). The algorithm calculates the power in any spectral band with a given tolerance for the band's boundaries. The MODWPT decomposition tree is pruned to avoid calculating unnecessary wavelet coefficients, thereby optimizing execution t...

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

    E-Print Network [OSTI]

    Cappers, Peter

    2009-01-01T23:59:59.000Z

    Figure E- 3. Reduction in earnings and CapEx for Low Growthand Abbreviations APS BAU CapEx CCGT CCS CPUC CT DSM DSR ECWCustomers Fuel Costs O&M Costs CapEx Costs Rate Base Energy

  18. Analysis of P-wave seismic response for fracture detection: modelling and case studies 

    E-Print Network [OSTI]

    Xu, Yungui

    2012-06-25T23:59:59.000Z

    This thesis addresses a few specific issues in the use of wide azimuth P-wave seismic data for fracture detection based on numerical modelling and real data. These issues include the seismic response of discrete fractures, ...

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

    E-Print Network [OSTI]

    Kaya Firat, Ayse

    2010-01-01T23:59:59.000Z

    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, ...

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

    E-Print Network [OSTI]

    Robinson, J.

    2010-01-01T23:59:59.000Z

    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

  1. Collective action for community-based hazard mitigation: a case study of Tulsa project impact

    E-Print Network [OSTI]

    Lee, Hee Min

    2005-11-01T23:59:59.000Z

    intergovernmental governance and reduce disaster losses (Godschalk, Beatley, Berke, Brower, and Kaiser, 1999; Mileti, 1999). Nevertheless, natural disaster losses in the United States have dramatically increased rather than decreased during the past two decades..., 1991). New alternative conceptual models for community-based hazard mitigation (CBHM) have recently been developed and implemented: for example, the sustainable community (Aguirre, 2002; Beatley, 1998; Berke, Kartez, and Wenger, 1993; Mileti...

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

    SciTech Connect (OSTI)

    Shaver, Mark W.

    2010-09-27T23:59:59.000Z

    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.

  3. A Computational Analysis Framework for Molecular Cell Dynamics: Case-Study of Exocytosis

    E-Print Network [OSTI]

    Gu, Xun

    is that in vivo system regulation is complex. Meanwhile, many kinetic rates are unknown, making global system analysis intractable in practice. In this article, we demonstrate a computational pipeline to help solve regulation) from limited in vitro experimental data, which fit well with the reports by the conventional

  4. A Meta-Analysis of Single-Case Studies on Functional Communication Training

    E-Print Network [OSTI]

    Heath, Amy Kathleen

    2012-07-16T23:59:59.000Z

    & Alaimo, 2007). Communicative hypothesis is a term used to refer to this relationship between behavior and communication (Carr, 1985; Carr & Durand, 1985; Neel et al., 1983; Reichle & Yoder, 1979). 15 There is a high prevalence rate of communication... ........................................................................................ 14 Rational for Conducting a Meta-Analysis on FCT ......................................... 15 Previous Reviews of FCT ............................................................................... 16 Purpose and Research...

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

    SciTech Connect (OSTI)

    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

    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

  6. A QUALITATIVE CASE STUDY ANALYSIS OF THE CURRENT CONDITION OF NICHE MARKET, INDEPENDENT MOTION PICTURE PRODUCERS

    E-Print Network [OSTI]

    Cole, Samuel Jason

    2013-12-31T23:59:59.000Z

    their own motives, and how those motives in turn impact the decisions they make during a film production. By capturing the motives, decisions, and practices of independent producers we have a snap shot of what it is like to take part in contemporary... by examining their motives through common themes that emerge through a series of case study analyses. The analyses will help identify the motives and influential factors that may have an impact on the process of a motion picture’s production. This study...

  7. A Monte Carlo based spent fuel analysis safeguards strategy assessment

    SciTech Connect (OSTI)

    Fensin, Michael L [Los Alamos National Laboratory; Tobin, Stephen J [Los Alamos National Laboratory; Swinhoe, Martyn T [Los Alamos National Laboratory; Menlove, Howard O [Los Alamos National Laboratory; Sandoval, Nathan P [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Safeguarding nuclear material involves the detection of diversions of significant quantities of nuclear materials, and the deterrence of such diversions by the risk of early detection. There are a variety of motivations for quantifying plutonium in spent fuel assemblies by means of nondestructive assay (NDA) including the following: strengthening the capabilities of the International Atomic Energy Agencies ability to safeguards nuclear facilities, shipper/receiver difference, input accountability at reprocessing facilities and burnup credit at repositories. Many NDA techniques exist for measuring signatures from spent fuel; however, no single NDA technique can, in isolation, quantify elemental plutonium and other actinides of interest in spent fuel. A study has been undertaken to determine the best integrated combination of cost effective techniques for quantifying plutonium mass in spent fuel for nuclear safeguards. A standardized assessment process was developed to compare the effective merits and faults of 12 different detection techniques in order to integrate a few techniques and to down-select among the techniques in preparation for experiments. The process involves generating a basis burnup/enrichment/cooling time dependent spent fuel assembly library, creating diversion scenarios, developing detector models and quantifying the capability of each NDA technique. Because hundreds of input and output files must be managed in the couplings of data transitions for the different facets of the assessment process, a graphical user interface (GUI) was development that automates the process. This GUI allows users to visually create diversion scenarios with varied replacement materials, and generate a MCNPX fixed source detector assessment input file. The end result of the assembly library assessment is to select a set of common source terms and diversion scenarios for quantifying the capability of each of the 12 NDA techniques. We present here the generalized assessment process, the techniques employed to automate the coupled facets of the assessment process, and the standard burnup/enrichment/cooling time dependent spent fuel assembly library. We also clearly define the diversion scenarios that will be analyzed during the standardized assessments. Though this study is currently limited to generic PWR assemblies, it is expected that the results of the assessment will yield an adequate spent fuel analysis strategy knowledge that will help the down-select process for other reactor types.

  8. Building an internet-based workflow system - the case of Lawrence Livermore National Laboratories` Zephyr project

    SciTech Connect (OSTI)

    Jordan, C. W., LLNL

    1998-04-01T23:59:59.000Z

    Lawrence Livermore National Laboratories` Zephyr System provides a showcase for the ways in which emerging technologies can help streamline procurement processes and improve the coordination between participants in engineering projects by allowing collaboration in ways that have not been possible before. The project also shows the success of a highly pragmatic approach that was initiated by the end user community, and that intentionally covered standard situations, rather than aiming at also automating the exceptions. By helping push purchasing responsibilities down to the end user, thereby greatly reducing the involvement of the purchasing department in operational activities, it was possible to streamline the process significantly resulting in time savings of up to 90%, major cost reductions, and improved quality. Left with less day-to- day purchasing operations, the purchasing department has more time for strategic tasks such as selecting and pre-qualifying new suppliers, negotiating blanket orders, or implementing new procurement systems. The case shows once more that the use of information technologies can result in major benefits when aligned with organizational adjustments.

  9. Retina Image Analysis and Ocular Telehealth: The Oak Ridge National Laboratory-Hamilton Eye Institute Case Study

    SciTech Connect (OSTI)

    Karnowski, Thomas Paul [ORNL; Giancardo, Luca [ORNL; Li, Yaquin [University of Tennessee, Knoxville (UTK); Tobin Jr, Kenneth William [ORNL; Chaum, Edward [University of Tennessee, Knoxville (UTK)

    2013-01-01T23:59:59.000Z

    Automated retina image analysis has reached a high level of maturity in recent years, and thus the question of how validation is performed in these systems is beginning to grow in importance. One application of retina image analysis is in telemedicine, where an automated system could enable the automated detection of diabetic retinopathy and other eye diseases as a low-cost method for broad-based screening. In this work we discuss our experiences in developing a telemedical network for retina image analysis, including our progression from a manual diagnosis network to a more fully automated one. We pay special attention to how validations of our algorithm steps are performed, both using data from the telemedicine network and other public databases.

  10. A Sustainable approach to large ICT Science based infrastructures; the case for Radio Astronomy

    E-Print Network [OSTI]

    Barbosa, Domingos; Boonstra, Albert-Jan; Aguiar, Rui; van Ardenne, Arnold; de Santander-Vela, Juande; Verdes-Montenegro, Lourdes

    2014-01-01T23:59:59.000Z

    Large sensor-based infrastructures for radio astronomy will be among the most intensive data-driven projects in the world, facing very high power demands. The geographically wide distribution of these infrastructures and their associated processing High Performance Computing (HPC) facilities require Green Information and Communications Technologies (ICT). A combination is needed of low power computing, efficient data storage, local data services, Smart Grid power management, and inclusion of Renewable Energies. Here we outline the major characteristics and innovation approaches to address power efficiency and long-term power sustainability for radio astronomy projects, focusing on Green ICT for science.

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

    SciTech Connect (OSTI)

    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

    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.

  12. Examining the Experiences of Women Sport Management Faculty: A Case Study Analysis

    E-Print Network [OSTI]

    Daehnke, Hailey E.

    2012-07-16T23:59:59.000Z

    into certain fields. In order to deal with discrimination against women, a variety of laws have been passed to ensure the protection of women?s rights. The Equal Pay Act was signed in 1963 and prohibited discrimination in wages based on sex. Title VII... at faster rates. Title IX In order to deal with discrimination against women, a variety of laws have been passed to ensure the protection of women?s rights. The Equal Pay Act was signed in 1963 and prohibited discrimination in wages based on sex (U...

  13. Use of fourier transforms to define landscape scales of analysis for disturbances: a case study of thinned and unthinned forest stands

    E-Print Network [OSTI]

    Use of fourier transforms to define landscape scales of analysis for disturbances: a case study using aerial photos, Fourier Tran- forms, and cluster analysis to investigate how different spatial statistics are affected by spatial scale. The specific aims were to: 1) evaluate how a Fourier filter could

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

    SciTech Connect (OSTI)

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

    2011-11-01T23:59:59.000Z

    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.

  15. The monetary approach to the balance of payments: The case of the oil-based, small, open, developing economies of Libya, Kuwait and Saudi Arabia

    SciTech Connect (OSTI)

    Buzakuk, M.R.

    1988-01-01T23:59:59.000Z

    This study explores the determinants of foreign reserves flow in light of the oil-based small open economies of Libya, Kuwait, and Saudi Arabia. The period of study encompasses the major oil price increases of the 1970s and early 1980s, which had led to the huge transfers of foreign exchanges towards these, among other, developing economies. The framework of analysis is basically a monetary approach to the balance of payments. This study is of both a theoretical and empirical nature. It utilizes the monetary forces in the domestic money market to derive a basic balance of payments (BOP) equation that explains the monetary nature of the balance of payments. The study found that the data from those countries support the monetary relationships as hypothesized by the monetary approach, especially the negative one-to-one relation between domestic credit (DC) and the BOP. Results from the simultaneous estimations of the BOP and DC reported better estimates than the single-equation model. Findings from the reaction function indicated that the monetary authorities of these oil-based economies were actively sterilizing the effect of foreign reserve flows. Findings supported the integrated market hypothesis in Kuwait and Libya, but not in the Saudi case.

  16. Environmental Analysis of the Coal-based Power Production with Amine-based Carbon Capture

    E-Print Network [OSTI]

    . Based on LCA methodology the study examines the operation of six coal power plants, which differ by the expected efficiency parameters for the year 2020: (1) Coal plant2005: pulverized coal power plant already operating in 2005 (2) Coal plant2010: pulverized coal power plant installed in 2010 (3) Coal plant2020

  17. Energy efficiency and the economists: The case for a policy based on economic principles

    SciTech Connect (OSTI)

    Anderson, D. [The World Bank, Washington, DC (United States)

    1995-11-01T23:59:59.000Z

    People interested in energy policy, whether in business, finance, government, or the environmental movement, should welcome and support an approach based on economic principles for three reasons. By solving the financing problem and encouraging innovation and cost-efficiency, the economic-efficiency approach will enable all countries to meet energy demands. By giving proper weight to the development and use of low-polluting technologies this approach will enable reduction of local and, over the long-term global pollution as energy demands grow. And in developing countries especially, an economic approach will enable the industry to play its part in raising living standards for the population at large. Given good policies, there is no reason at all why developing countries, like the industrial countries before them, should not enjoy the benefits of much higher levels of energy consumption than they do today.

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

    SciTech Connect (OSTI)

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

    2009-12-03T23:59:59.000Z

    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.

  19. Recurrent Shocks, Poverty Traps and the Degradation of the Social Capital Base of Pastoralism: A Case Study from Southern Ethiopia

    E-Print Network [OSTI]

    Berhanu, Wassie

    2009-01-01T23:59:59.000Z

    A Case Study from Southern Ethiopia. Wassie Berhanu AddisCase Study from Southern Ethiopia. CEGA Working Paper SeriesA Case Study from Southern Ethiopia. Journal of Development

  20. Genetic algorithm evolved agent-based equity trading using Technical Analysis and the Capital Asset Pricing Model

    E-Print Network [OSTI]

    Aickelin, Uwe

    Genetic algorithm evolved agent-based equity trading using Technical Analysis and the Capital Asset data using technical analysis, the capital asset pricing model and a hybrid model of the two approaches. Results indicated that the technical analysis based approach performed better than the capital asset

  1. Multi-vehicle Convoy Analysis Based on ANPR data A. Homayounfar*, A. T. S. Ho*, N. Zhu*, G. Head

    E-Print Network [OSTI]

    Doran, Simon J.

    Multi-vehicle Convoy Analysis Based on ANPR data A. Homayounfar*, A. T. S. Ho*, N. Zhu*, G. Head mining techniques for convoy analysis of vehicles based on the automatic number plate recognition (ANPR of multi-vehicle convoy activities. 1 Introduction Convoy Analysis of vehicles is a relatively new research

  2. Station Blackout: A case study in the interaction of mechanistic and probabilistic safety analysis

    SciTech Connect (OSTI)

    Curtis Smith; Diego Mandelli; Cristian Rabiti

    2013-11-01T23:59:59.000Z

    The ability to better characterize and quantify safety margins is important to improved decision making about nuclear power plant design, operation, and plant life extension. As research and development (R&D) in the light-water reactor (LWR) Sustainability (LWRS) Program and other collaborative efforts yield new data, sensors, and improved scientific understanding of physical processes that govern the aging and degradation of plant SSCs needs and opportunities to better optimize plant safety and performance will become known. The purpose of the Risk Informed Safety Margin Characterization (RISMC) Pathway R&D is to support plant decisions for risk-informed margin management with the aim to improve economics, reliability, and sustain safety of current NPPs. In this paper, we describe the RISMC analysis process illustrating how mechanistic and probabilistic approaches are combined in order to estimate a safety margin. We use the scenario of a “station blackout” wherein offsite power and onsite power is lost, thereby causing a challenge to plant safety systems. We describe the RISMC approach, illustrate the station blackout modeling, and contrast this with traditional risk analysis modeling for this type of accident scenario.

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

    SciTech Connect (OSTI)

    Marshall, Albert Christian

    2005-07-01T23:59:59.000Z

    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.

  4. Sweets, sweetened beverages, and risk of pancreatic cancer in a large population-based case–control study

    E-Print Network [OSTI]

    Chan, June M.; Wang, Furong; Holly, Elizabeth A.

    2009-01-01T23:59:59.000Z

    serving = 1 can, Case % glass, bottle, or cup) n Low calorie= 1 can, Case % glass, bottle, or cup) n All sweetened

  5. Rational Mutagenesis to Support Structure-based Drug Design: MAPKAP Kinase 2 as a Case Study

    SciTech Connect (OSTI)

    M Argiriadi; S Sousa; D Banach; D Marcotte; T Xiang; M Tomlinson; M Demers; C Harris; S Kwak; et al.

    2011-12-31T23:59:59.000Z

    Structure-based drug design (SBDD) can provide valuable guidance to drug discovery programs. Robust construct design and expression, protein purification and characterization, protein crystallization, and high-resolution diffraction are all needed for rapid, iterative inhibitor design. We describe here robust methods to support SBDD on an oral anti-cytokine drug target, human MAPKAP kinase 2 (MK2). Our goal was to obtain useful diffraction data with a large number of chemically diverse lead compounds. Although MK2 structures and structural methods have been reported previously, reproducibility was low and improved methods were needed. Our construct design strategy had four tactics: N- and C-terminal variations; entropy-reducing surface mutations; activation loop deletions; and pseudoactivation mutations. Generic, high-throughput methods for cloning and expression were coupled with automated liquid dispensing for the rapid testing of crystallization conditions with minimal sample requirements. Initial results led to development of a novel, customized robotic crystallization screen that yielded MK2/inhibitor complex crystals under many conditions in seven crystal forms. In all, 44 MK2 constructs were generated, {approx}500 crystals were tested for diffraction, and {approx}30 structures were determined, delivering high-impact structural data to support our MK2 drug design effort. Key lessons included setting reasonable criteria for construct performance and prioritization, a willingness to design and use customized crystallization screens, and, crucially, initiation of high-throughput construct exploration very early in the drug discovery process.

  6. Lipid-Based Nanodiscs as Models for Studying Mesoscale Coalescence A Transport Limited Case

    SciTech Connect (OSTI)

    Hu, Andrew [University of Connecticut, Storrs; Fan, Tai-Hsi [University of Connecticut, Storrs; Katsaras, John [ORNL; Xia, Yan [University of Connecticut, Storrs; Li, Ming [University of Connecticut, Storrs; Nieh, Mu-Ping [University of Connecticut, Storrs

    2014-01-01T23:59:59.000Z

    Lipid-based nanodiscs (bicelles) are able to form in mixtures of long- and short-chain lipids. Initially, they are of uniform size but grow upon dilution. Previously, nanodisc growth kinetics have been studied using time-resolved small angle neutron scattering (SANS), a technique which is not well suited for probing their change in size immediately after dilution. To address this, we have used dynamic light scattering (DLS), a technique which permits the collection of useful data in a short span of time after dilution of the system. The DLS data indicate that the negatively charged lipids in nanodiscs play a significant role in disc stability and growth. Specifically, the charged lipids are most likely drawn out from the nanodiscs into solution, thereby reducing interparticle repulsion and enabling the discs to grow. We describe a population balance model, which takes into account Coulombic interactions and adequately predicts the initial growth of nanodiscs with a single parameter i.e., surface potential. The results presented here strongly support the notion that the disc coalescence rate strongly depends on nanoparticle charge density. The present system containing low-polydispersity lipid nanodiscs serves as a good model for understanding how charged discoidal micelles coalesce.

  7. A preliminary analysis of the reactor-based plutonium disposition alternative deployment schedules

    SciTech Connect (OSTI)

    Zurn, R.M.

    1997-09-01T23:59:59.000Z

    This paper discusses the preliminary analysis of the implementation schedules of the reactor-based plutonium disposition alternatives. These schedule analyses are a part of a larger process to examine the nine decision criteria used to determine the most appropriate method of disposing of U.S. surplus weapons plutonium. The preliminary analysis indicates that the mission durations for the reactor-based alternatives range from eleven years to eighteen years and the initial mission fuel assemblies containing surplus weapons-usable plutonium could be loaded into the reactors between nine and fourteen years after the Record of Decision.

  8. Framework for the Economic Analysis of Hybrid Systems Based on Exergy Consumption

    SciTech Connect (OSTI)

    Cristian Rabiti; Robert S. Cherry; Wesley R. Deason; Piyush Sabharwall; Shannon M. Bragg-Sitton; Richard D. Boardman

    2014-08-01T23:59:59.000Z

    Starting from an overview of the dynamic behavior of the electricity market the need of the introduction of energy users that will provide a damping capability to the system is derived as also a qualitative analysis of the impact of uncertainty, both in the demand and supply side, is performed. Then it follows an introduction to the investment analysis methodologies based on the discounting of the cash flow, and then work concludes with the illustration and application of the exergonomic principles to provide a sound methodology for the cost accounting of the plant components to be used in the cash flow analysis.

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

    SciTech Connect (OSTI)

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

    2012-11-01T23:59:59.000Z

    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.

  10. Saltstone Disposal Facility Mechanically Stabilized Earth Vault Closure Cap Degradation Base Case: Institutional Control To Pine Forest Scenario

    SciTech Connect (OSTI)

    Phifer, MA

    2004-03-19T23:59:59.000Z

    As part of the current Saltstone Disposal Facility (SDF) Performance Assessment (PA) revision, the closure cap configuration was reevaluated and closure cap degradation mechanisms and their impact upon infiltration through the closure cap was evaluated for the existing SDF concrete vaults (i.e. vaults 1 and 4) for the base case land use scenario (i.e. institutional control to pine forest scenario) and documented in Phifer and Nelson (2003). The closure cap configuration was modified from a compacted kaolin barrier layer concept to a geosynthetic clay layer (GCL) barrier layer concept. The degradation mechanisms developed included pine forest succession, erosion, and colloidal clay migration. These degradation mechanisms resulted in changes in the hydraulic properties of the closure cap layers and resulting increases in infiltration through the closure cap over time.

  11. Statistical Process Variation Analysis of a Graphene FET based LC-VCO for WLAN Applications

    E-Print Network [OSTI]

    Mohanty, Saraju P.

    Statistical Process Variation Analysis of a Graphene FET based LC-VCO for WLAN Applications Md Abir.AbirKhan@my.unt.edu, saraju.mohanty@unt.edu, and elias.kougianos@unt.edu Abstract--Graphene which is a single atom layer-frequency electronics due to low Ion/Ioff ratio. In this paper, design exploration of a graphene FET (GFET) based LC

  12. Can Artificial Neural Networks be Applied in Seismic Predicition? Preliminary Analysis Applying Radial Topology. Case: Mexico

    E-Print Network [OSTI]

    Mota-Hernandez, Cinthya; Alvarado-Corona, Rafael

    2014-01-01T23:59:59.000Z

    Tectonic earthquakes of high magnitude can cause considerable losses in terms of human lives, economic and infrastructure, among others. According to an evaluation published by the U.S. Geological Survey, 30 is the number of earthquakes which have greatly impacted Mexico from the end of the XIX century to this one. Based upon data from the National Seismological Service, on the period between January 1, 2006 and May 1, 2013 there have occurred 5,826 earthquakes which magnitude has been greater than 4.0 degrees on the Richter magnitude scale (25.54% of the total of earthquakes registered on the national territory), being the Pacific Plate and the Cocos Plate the most important ones. This document describes the development of an Artificial Neural Network (ANN) based on the radial topology which seeks to generate a prediction with an error margin lower than 20% which can inform about the probability of a future earthquake one of the main questions is: can artificial neural networks be applied in seismic forecast...

  13. 2007 Wholesale Power Rate Case Final Proposal : Risk Analysis Study Documentation.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    2006-07-01T23:59:59.000Z

    The RiskMod Model is comprised of a set of risk simulation models, collectively referred to as RiskSim; a set of computer programs that manages data referred to as Data Management Procedures; and RevSim, a model that calculates net revenues. RiskMod interacts with the AURORA Model, the RAM2007, and the ToolKit Model during the process of performing the Risk Analysis Study. AURORA is the computer model being used to perform the Market Price Forecast Study (see Market Price Forecast Study, WP-07-FS-BPA-03); the RAM2007 is the computer model being used to calculate rates (see Wholesale Power Rate Development Study, WP-07-FS-BPA-05); and the ToolKit is the computer model being used to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard (see Section 3 in the Risk Analysis Study, WP-07-FS-BPA-04). Variations in monthly loads, resources, natural gas prices, forward market electricity prices, transmission expenses, and aluminum smelter benefit payments are simulated in RiskSim. Monthly spot market electricity prices for the simulated loads, resources, and natural gas prices are estimated by the AURORA Model. Data Management Procedures facilitate the format and movement of data that flow to and/or from RiskSim, AURORA, and RevSim. RevSim estimates net revenues using risk data from RiskSim, spot market electricity prices from AURORA, loads and resources data from the Load Resource Study, WP-07-FS-BPA-01, various revenues from the Revenue Forecast component of the Wholesale Power Rate Development Study, WP-07-FSBPA-05, and rates and expenses from the RAM2007. Annual average surplus energy revenues, purchased power expenses, and section 4(h)(10)(C) credits calculated by RevSim are used in the Revenue Forecast and the RAM2007. Heavy Load Hour (HLH) and Light Load Hour (LLH) surplus and deficit energy values from RevSim are used in the Transmission Expense Risk Model. Net revenues estimated for each simulation by RevSim are input into the ToolKit Model to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard. The processes and interaction between each of the models and studies are depicted in Graph 1.

  14. 2007 Wholesale Power Rate Case Initial Proposal : Risk Analysis Study Documentation.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    2005-11-01T23:59:59.000Z

    The RiskMod Model is comprised of a set of risk simulation models, collectively referred to as RiskSim; a set of computer programs that manages data referred to as Data Management Procedures; and RevSim, a model that calculates net revenues. RiskMod interacts with the AURORA Model, the RAM2007, and the ToolKit Model during the process of performing the Risk Analysis Study. AURORA is the computer model being used to perform the Market Price Forecast Study (see Market Price Forecast Study, WP-07-E-BPA-03); the RAM2007 is the computer model being used to calculate rates (see Wholesale Power Rate Development Study, WP-07-E-BPA-05); and the ToolKit is the computer model being used to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard (see Section 3 in the Risk Analysis Study, WP-07-E-BPA-04). Variations in monthly loads, resources, natural gas prices, forward market electricity prices, transmission expenses, and aluminum smelter benefit payments are simulated in RiskSim. Monthly spot market electricity prices for the simulated loads, resources, and natural gas prices are estimated by the AURORA Model. Data Management Procedures facilitate the format and movement of data that flow to and/or from RiskSim, AURORA, and RevSim. RevSim estimates net revenues using risk data from RiskSim, spot market electricity prices from AURORA, loads and resources data from the Load Resource Study, WP-07-E-BPA-01, various revenues from the Revenue Forecast component of the Wholesale Power Rate Development Study, WP-07-E-BPA-05, and rates and expenses from the RAM2007. Annual average surplus energy revenues, purchased power expenses, and section 4(h)(10)(C) credits calculated by RevSim are used in the Revenue Forecast and the RAM2007. Heavy Load Hour (HLH) and Light Load Hour (LLH) surplus and deficit energy values from RevSim are used in the Transmission Expense Risk Model. Net revenues estimated for each simulation by RevSim are input into the ToolKit Model to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard. The processes and interaction between each of the models and studies are depicted in Graph 1.

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

    SciTech Connect (OSTI)

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

    2003-02-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    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

    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.

  17. Mauve: a Component-based Modeling Framework for Real-time Analysis of Robotic Applications

    E-Print Network [OSTI]

    Mauve: a Component-based Modeling Framework for Real-time Analysis of Robotic Applications Charles paradigm for robotic software devel- opment [2], applied in many applications [3], [4], [5], [6]. Resulting validation of the robotic application, by directly analysing the architecture specification, and limiting

  18. Thermodynamic Cycle Analysis for Wave Rotor Combustor Based Combined Cycle Jessica Collins1

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Thermodynamic Cycle Analysis for Wave Rotor Combustor Based Combined Cycle Jessica Collins1 , Brian of Engineering and Technology The conventional combustor that exists in today's market is a constant pressure device; whereas, the wave rotor combustor investigated in the present research is a constant volume

  19. Operation-Based Signal-Flow AC Analysis of Switching DCDC Converters in CCM and DCM

    E-Print Network [OSTI]

    Rincon-Mora, Gabriel A.

    Operation-Based Signal-Flow AC Analysis of Switching DC­DC Converters in CCM and DCM Dongwon Kwon (CCM and DCM) and insightful enough to derive directly from the waveforms of the circuit, not from- and discontinuous-conduction modes (CCM and DCM). To this end, for review, Sections II and III of the paper overview

  20. GIS-based Multi-Criteria Analysis of Wind Farm Development Henning Sten Hansen

    E-Print Network [OSTI]

    Hansen, René Rydhof

    GIS-based Multi-Criteria Analysis of Wind Farm Development Henning Sten Hansen National on the environment of traditional power- generating methods, especially coal and oil-fired power stations wind power. A project ­ Wind Energy in the Baltic Sea Region - financed by EU / INTERREG III B was initiated in order

  1. Ontology-Based Software Analysis and Reengineering Tool Integration: The OASIS Service-Sharing Methodology

    E-Print Network [OSTI]

    Cordy, James R.

    Ontology-Based Software Analysis and Reengineering Tool Integration: The OASIS Service-Sharing Integration System (OASIS) is a novel approach to integration that makes use of specially constructed through service-sharing. This short pa- per provides an outline of the design and function of OASIS. 2

  2. Surface Analysis by Highly Charged Ion Based Secondary Ion Mass Spectrometry

    E-Print Network [OSTI]

    Surface Analysis by Highly Charged Ion Based Secondary Ion Mass Spectrometry T. Schenkel,1 A high vacuum (10^8 torr). In posi- tive polarity, HCI can be decelerated to an impact energy of $1 ke in the interaction of slow (u highly charged ions (e.g., Au69+ ) with solid surfaces increases secondary

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

    E-Print Network [OSTI]

    Boyer, Edmond

    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

  4. COMMENTS ON STRUCTURAL CONDITION ANALYSIS BASED ON STRAIN MEASUREMENTS ON TRIPOD MODEL

    E-Print Network [OSTI]

    Boyer, Edmond

    depth of 50 m. Bigger size wind turbines are now designed in order to produce more electrical power thanCOMMENTS ON STRUCTURAL CONDITION ANALYSIS BASED ON STRAIN MEASUREMENTS ON TRIPOD MODEL S. Opoka1, M strain can be valuable indicator of such changes. KEYWORDS : offshore support structure, wind turbine

  5. A Quality Based Approach for the Analysis and Design of Business Process Models

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Quality Based Approach for the Analysis and Design of Business Process Models Sarah Ayad1 CEDRIC in modeling and improving Business Process (BP) models quality. This problem is of growing interest exploiting domain knowledge. Keywords-component: Business Process Models, Quality metrics, Quality

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

    E-Print Network [OSTI]

    Schneider, Jean-Guy

    Experimental 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 that minimise energy consumption while guaranteeing Service Level Agreements (SLAs). In order to achieve

  7. Data Distribution Analysis and Optimization for PointerBased Distributed Programs

    E-Print Network [OSTI]

    Lee, Jenq-Kuen

    Data Distribution Analysis and Optimization for Pointer­Based Distributed Programs Jenq Kuen Lee Abstract High Performance Fortran (HPF) provides distributed arrays to efficiently support a global name space on distributed memory architectures. The distributed data structures supported by HPF, how­ ever

  8. European Wind Energy Conference 2007 Milan Measurement based analysis of active and reactive power

    E-Print Network [OSTI]

    European Wind Energy Conference 2007 ­ Milan 1 Measurement based analysis of active and reactive of the electricity is produced by wind turbines and combined heat and power plants (CHPs). Most of them are connected of reactive power between the 60 kV and the 150 kV networks. Further, the TSO is obligated to compensate

  9. Phase Field Dynamic Modelling of Shape Memory Alloys Based on Isogeometric Analysis

    E-Print Network [OSTI]

    Gomez, Hector

    Phase Field Dynamic Modelling of Shape Memory Alloys Based on Isogeometric Analysis Rakesh Dhote1 transformations, phase-field model, Ginzburg-Landau theory, nonlinear thermo-elasticity. Abstract. Shape Memory. Introduction Shape Memory Alloys have attracted considerable attention of physicists, engineers and mathemati

  10. Classification of Melanoma Lesions Using Wavelet-based Texture Analysis Rahil Garnavi, Mohammad Aldeen

    E-Print Network [OSTI]

    Bailey, James

    Classification of Melanoma Lesions Using Wavelet-based Texture Analysis Rahil Garnavi, Mohammad for classification of melanoma. The method applies tree-structured wavelet transform on different color chan- nels and hidden naive bayes to classify melanoma in a test set of 102 images, which resulted in an accuracy of 88

  11. Computer-aided Diagnosis of Melanoma Using Border and Wavelet-based Texture Analysis

    E-Print Network [OSTI]

    Bailey, James

    1 Computer-aided Diagnosis of Melanoma Using Border and Wavelet-based Texture Analysis Rahil presents a novel computer-aided diagno- sis system for melanoma. The novelty lies in the optimised selec of the melanoma lesion. The texture features are derived from using wavelet-decomposition, the border features

  12. An Object-Based Approach to Modelling and Analysis of Failure Properties

    E-Print Network [OSTI]

    Newcastle upon Tyne, University of

    based on a protection system from the Nuclear Industry. Keywords: safety analysis, object. Mavko1, S. Riddle2, A. Saeed2 1 Reactor Engineering Division, \\Jozef Stefan" Institute, Ljubljana of the system is likely to increase. The quantitative evidence normally pro- vided for safety certi cation

  13. Cut-off Rate based Outage Probability Analysis of Frequency Hopping Mobile Radio under Jamming

    E-Print Network [OSTI]

    Yýlmaz, Özgür

    Cut-off Rate based Outage Probability Analysis of Frequency Hopping Mobile Radio under Jamming Conditions G¨okhan M. G¨uvensen Electrical and Electronics Eng. Dept. Middle East Technical University Ankara, Turkey Email: guvensen@metu.edu.tr Yalc¸in Tanik Electrical and Electronics Eng. Dept. Middle East

  14. Utility based Data Mining for Time Series Analysis -Cost-sensitive Learning for Neural Network Predictors

    E-Print Network [OSTI]

    Weiss, Gary

    Utility based Data Mining for Time Series Analysis - Cost-sensitive Learning for Neural Network@bis-lab.com ABSTRACT In corporate data mining applications, cost-sensitive learning is firmly established Mining General Terms Algorithms, Management, Economics Keywords Data Mining, cost-sensitive learning

  15. Impact of Jitter-based Techniques on Flooding over Wireless Ad hoc Networks: Model and Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Impact of Jitter-based Techniques on Flooding over Wireless Ad hoc Networks: Model and Analysis Philippe.Jacquet@inria.fr Emmanuel Baccelli INRIA, France Emmanuel.Baccelli@inria.fr Abstract--Jitter. This paper investigates on the impact of the standardized jitter mechanism on network-wide packet

  16. Query-driven Analysis of Plasma-based Particle Acceleration Data Oliver Rubel

    E-Print Network [OSTI]

    Query-driven Analysis of Plasma-based Particle Acceleration Data Oliver R¨ubel LBNL Cameron G. R. Geddes LBNL Min Chen LBNL Estelle Cormier-Michel Tech-X Corp. E. W. Bethel LBNL x(x106 ) 2000 4000

  17. A Simple Fuzzy Classifier based on Inconsistency Analysis of Labeled Data

    E-Print Network [OSTI]

    Putten, Peter van der

    for designing fuzzy systems for prediction, control, and pattern recognition. Most of these data 2000, fuzzy classifier, model initialisation, direct mail INRODUCTION Data mining and knowledgeA Simple Fuzzy Classifier based on Inconsistency Analysis of Labeled Data János Abonyi, Hans Roubos

  18. PERTURBATION-BASED ERROR ANALYSIS OF ITERATIVE IMAGE RECONSTRUCTION ALGORITHM FOR X-RAY COMPUTED TOMOGRAPHY

    E-Print Network [OSTI]

    Fessler, Jeffrey A.

    -ray computed tomography. The effects of the quantization error in forward-projection, back computed tomography (CT) have been proposed to improve image quality and reduce dose [1]. These methodsPERTURBATION-BASED ERROR ANALYSIS OF ITERATIVE IMAGE RECONSTRUCTION ALGORITHM FOR X-RAY COMPUTED

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

    E-Print Network [OSTI]

    Durrani, Yamin Qaisar

    2005-11-01T23:59:59.000Z

    electronic switching devices................. 22 2.4.1. SiC Schottky diode................................................................. 22 2.4.2. 4H-SiC PiN diode................................................................... 23 2.4.3. Si...C MOSFET.......................................................................... 23 2.4.4. SiC JFET................................................................................. 23 2.5. Analysis of SiC based Schottky diode...

  20. IEEE TRANSACTIONS ON POWER SYSTEMS 1 Web-based Security Cost Analysis in Electricity

    E-Print Network [OSTI]

    Cañizares, Claudio A.

    IEEE TRANSACTIONS ON POWER SYSTEMS 1 Web-based Security Cost Analysis in Electricity Markets Hong, and describes its implementation using a 3-tier client/server architecture and up-to-date web technologies to certain system parameters. The web implementation allows easy and effective access by all market

  1. JOURNAL OF MATERIALS SCIENCE 38 (2003) 307 322 Crystal plasticity-based finite element analysis

    E-Print Network [OSTI]

    Grujicic, Mica

    2003-01-01T23:59:59.000Z

    JOURNAL OF MATERIALS SCIENCE 38 (2003) 307­ 322 Crystal plasticity-based finite element analysis -TiAl + 2-Ti3Al alloys has been analyzed using a finite element method. A three-dimensional rate interfaces and colony boundaries are implemented in the commercial finite element program Abaqus

  2. Decision Support Modeling and analysis of an auction-based logistics market

    E-Print Network [OSTI]

    Karaesmen, Fikri

    Decision Support Modeling and analysis of an auction-based logistics market Semra Agrali a , Barisß a logistics spot market where the transportation orders from a number of firms are matched with two types that have lower costs. In order to analyze the effects of implementing a logistics spot market

  3. Current-based 4D shape analysis for the mechanical personalization of heart models

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Current-based 4D shape analysis for the mechanical personalization of heart models Lo¨ic Le Folgoc1. Abstract. Patient-specific models of the heart may lead to better understanding of cardiovascular diseases-mechanical model of the heart, from the kinematics of the endo- and epicardium, is presented in this paper. We use

  4. Harmonic Analysis of a Three-Phase Diode Bridge Rectifier based on Sampled-Data Model

    E-Print Network [OSTI]

    Lehn, Peter W.

    Harmonic Analysis of a Three-Phase Diode Bridge Rectifier based on Sampled-Data Model K. L. Lian. As demonstrated in the paper, the proposed method analytically evaluates harmonics, and obtains exact switching is to incorporate it into a harmonic power flow program to yield improved accuracy. Index Terms-- Diode Bridge

  5. Trace-Based Analysis and Prediction of Cloud Computing User Behavior Using the Fractal Modeling Technique

    E-Print Network [OSTI]

    Pedram, Massoud

    Trace-Based Analysis and Prediction of Cloud Computing User Behavior Using the Fractal Modeling and technology. In this paper, we investigate the characteristics of the cloud computing requests received the alpha- stable distribution. Keywords- cloud computing; alpha-stable distribution; fractional order

  6. Model-based analysis and simulation of regenerative heat wheel Zhuang Wu a

    E-Print Network [OSTI]

    Melnik, Roderick

    , which is used in many heat recovery systems. In this paper, a model-based analysis of a rotary Mechanical ventilation with heat recovery systems plays a vital role in securing optimum air quality, thermal heat recovery systems [3]. Such systems have a significant effect on the energy effectiveness

  7. Model-based Failure Modes and Effects Analysis of Neal Snooke 1

    E-Print Network [OSTI]

    Snooke, Neal

    embedded software developers who are already familiar with the benefits of FMEA analysis. Several au- thors discuss experiences of performing manual FMEA of software however there has been no attempt at automating of software and the success of model based automated FMEA for hardware. 1 Introduction The notion of Software

  8. An Automated Failure Modes and Effect Analysis Based Visual Matrix Approach to Sensor Selection and

    E-Print Network [OSTI]

    Snooke, Neal

    - prehensive automated Failure Modes and Effects Analysis (FMEA) using qualitative model based reasoning techniques. The automated FMEA pro- vides a comprehensive set of fault­effect rela- tions by qualitative FMEA results in a fault-effect mapping that can be used to investi- gate the diagnosability

  9. A finite element analysis of a silicon based double quantum dot structure

    E-Print Network [OSTI]

    S. Rahman; J. Gorman; C. H. W. Barnes; D. A. Williams; H. P. Langtangen

    2006-04-06T23:59:59.000Z

    We present the results of a finite-element solution of the Laplace equation for the silicon-based trench-isolated double quantum-dot and the capacitively-coupled single-electron transistor device architecture. This system is a candidate for charge and spin-based quantum computation in the solid state, as demonstrated by recent coherent-charge oscillation experiments. Our key findings demonstrate control of the electric potential and electric field in the vicinity of the double quantum-dot by the electric potential applied to the in-plane gates. This constitutes a useful theoretical analysis of the silicon-based architecture for quantum information processing applications.

  10. The Case for Increasing Enrollment and Leveraging Marginal Costs: CSUN Case Study

    E-Print Network [OSTI]

    Shubin, Carol

    The Case for Increasing Enrollment and Leveraging Marginal Costs: CSUN Case Study H. Hellenbrand1 will estimate the marginal cost for increasing enrollment from a theoretical point of view. This analysis will use data from the IPEDS data base and formulae for replacement costs suggested by the Legislative

  11. Analysis of Direct Searches for Non-Lipschitzian Functions

    E-Print Network [OSTI]

    2009-10-08T23:59:59.000Z

    Oct 8, 2009 ... Rockafellar [11] and our analysis is heavily based on his. ..... noticed for the other functions in case of failure of convergence). In order to access ...

  12. Security Analysis of Selected AMI Failure Scenarios Using Agent Based Game Theoretic Simulation

    SciTech Connect (OSTI)

    Abercrombie, Robert K [ORNL] [ORNL; Schlicher, Bob G [ORNL] [ORNL; Sheldon, Frederick T [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Information security analysis can be performed using game theory implemented in dynamic Agent Based Game Theoretic (ABGT) simulations. Such simulations can be verified with the results from game theory analysis and further used to explore larger scale, real world scenarios involving multiple attackers, defenders, and information assets. We concentrated our analysis on the Advanced Metering Infrastructure (AMI) functional domain which the National Electric Sector Cyber security Organization Resource (NESCOR) working group has currently documented 29 failure scenarios. The strategy for the game was developed by analyzing five electric sector representative failure scenarios contained in the AMI functional domain. From these five selected scenarios, we characterize them into three specific threat categories affecting confidentiality, integrity and availability (CIA). The analysis using our ABGT simulation demonstrates how to model the AMI functional domain using a set of rationalized game theoretic rules decomposed from the failure scenarios in terms of how those scenarios might impact the AMI network with respect to CIA.

  13. A geospatial analysis of market integration: the case of the 2004/5 food crisis in Niger

    E-Print Network [OSTI]

    Shin, Michael

    2010-01-01T23:59:59.000Z

    ORIGINAL PAPER A geospatial analysis of market integration:dominance of the A geospatial analysis of market integrationsegments and A geospatial analysis of market integration

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

    SciTech Connect (OSTI)

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

    1993-12-31T23:59:59.000Z

    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.

  15. Wavelet-Based Method for Instability Analysis in Boiling Water Reactors

    SciTech Connect (OSTI)

    Espinosa-Paredes, Gilberto; Prieto-Guerrero, Alfonso; Nunez-Carrera, Alejandro; Amador-Garcia, Rodolfo

    2005-09-15T23:59:59.000Z

    This paper introduces a wavelet-based method to analyze instability events in a boiling water reactor (BWR) during transient phenomena. The methodology to analyze BWR signals includes the following: (a) the short-time Fourier transform (STFT) analysis, (b) decomposition using the continuous wavelet transform (CWT), and (c) application of multiresolution analysis (MRA) using discrete wavelet transform (DWT). STFT analysis permits the study, in time, of the spectral content of analyzed signals. The CWT provides information about ruptures, discontinuities, and fractal behavior. To detect these important features in the signal, a mother wavelet has to be chosen and applied at several scales to obtain optimum results. MRA allows fast implementation of the DWT. Features like important frequencies, discontinuities, and transients can be detected with analysis at different levels of detail coefficients. The STFT was used to provide a comparison between a classic method and the wavelet-based method. The damping ratio, which is an important stability parameter, was calculated as a function of time. The transient behavior can be detected by analyzing the maximum contained in detail coefficients at different levels in the signal decomposition. This method allows analysis of both stationary signals and highly nonstationary signals in the timescale plane. This methodology has been tested with the benchmark power instability event of Laguna Verde nuclear power plant (NPP) Unit 1, which is a BWR-5 NPP.

  16. A meta-analysis of single case research studies on aided augmentative and alternative communication systems with individuals with autism spectrum disorders

    E-Print Network [OSTI]

    Ganz, Jennifer B.; Earles-Vollrath, Theresa L.; Heath, Amy K.; Parker, Richard; Rispoli, Mandy J.; Duran, Jaime

    2012-01-01T23:59:59.000Z

    Running Head: META-ANALYSIS OF AAC 1 A Meta-Analysis of Single Case Research Studies on Aided Augmentative and Alternative Communication Systems with Individuals with Autism Spectrum Disorders Jennifer B. Ganz Theresa L. Earles... treatment); (e) no dichotomous dependent variables (e.g., yes/no, 0/1) used; (f) data were displayed as line graphs; (g) articles were published in peer-reviewed journals; and (h) articles were in English. Articles had to meet all of these criteria...

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

    SciTech Connect (OSTI)

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

    2011-12-14T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

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

    1986-12-01T23:59:59.000Z

    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.

  19. A Knowledge-Based Approach for Power-Plant Availability Analysis

    E-Print Network [OSTI]

    Reddy, A. Chandra Shekar

    1988-01-01T23:59:59.000Z

    , this is a very powerful approach. When common- mode failures are to be included, this approach is not valid and the transition rate matrix approach needs to be used. C. GO Block Logic System The GO Availability Analysis Methodology was developed by EPRI... in Fig. 14. is based upon one of the designs developed by EPRI to aid in the evaluation of the economic benefits of potential improvements in advanced gas turbine reliaibility. The failure snd repair rates are based on previous historic data. Both...

  20. Approach to proliferation risk assessment based on multiple objective analysis framework

    SciTech Connect (OSTI)

    Andrianov, A.; Kuptsov, I. [Obninsk Institute for Nuclear Power Engineering of NNRU MEPhI (Russian Federation); Studgorodok 1, Obninsk, Kaluga region, 249030 (Russian Federation)

    2013-07-01T23:59:59.000Z

    The approach to the assessment of proliferation risk using the methods of multi-criteria decision making and multi-objective optimization is presented. The approach allows the taking into account of the specifics features of the national nuclear infrastructure, and possible proliferation strategies (motivations, intentions, and capabilities). 3 examples of applying the approach are shown. First, the approach has been used to evaluate the attractiveness of HEU (high enriched uranium)production scenarios at a clandestine enrichment facility using centrifuge enrichment technology. Secondly, the approach has been applied to assess the attractiveness of scenarios for undeclared production of plutonium or HEU by theft of materials circulating in nuclear fuel cycle facilities and thermal reactors. Thirdly, the approach has been used to perform a comparative analysis of the structures of developing nuclear power systems based on different types of nuclear fuel cycles, the analysis being based on indicators of proliferation risk.

  1. Analysis of Complexity and Power Consumption in DSP-Based Optical Modulation Formats

    E-Print Network [OSTI]

    Wei, J. L.; Cheng, Q.; Penty, R. V.; White, I. H.

    2014-07-17T23:59:59.000Z

    sector as a result of concerns about global warming. Thus energy-efficiency is also an important criterion for technology evolution [5]. Ethernet has been the dominant technology for short reach optical interconnects [6]. In March 2013, the IEEE... Analysis of Complexity and Power Consumption in DSP-Based Optical Modulation Formats J. L. Wei, Q. Cheng, R. V. Penty, and I. H. White Centre for Photonic Systems, Electrical Engineering Division, Department of Engineering, University...

  2. Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening

    E-Print Network [OSTI]

    Nicolas Sangouard; Christoph Simon; Mikael Afzelius; Nicolas Gisin

    2007-01-30T23:59:59.000Z

    We present a detailed analysis of a quantum memory for photons based on controlled and reversible inhomogeneous broadening (CRIB). The explicit solution of the equations of motion is obtained in the weak excitation regime, making it possible to gain insight into the dependence of the memory efficiency on the optical depth, and on the width and shape of the atomic spectral distributions. We also study a simplified memory protocol which does not require any optical control fields.

  3. Analysis of a quantum memory for photons based on controlled reversible inhomogeneous broadening

    SciTech Connect (OSTI)

    Sangouard, Nicolas; Simon, Christoph; Afzelius, Mikael; Gisin, Nicolas [Group of Applied Physics-Optics, University of Geneva, Geneva (Switzerland)

    2007-03-15T23:59:59.000Z

    We present a detailed analysis of a quantum memory for photons based on controlled and reversible inhomogeneous broadening. The explicit solution of the equations of motion is obtained in the weak excitation regime, making it possible to gain insight into the dependence of the memory efficiency on the optical depth, and on the width and shape of the atomic spectral distributions. We also study a simplified memory protocol which does not require any optical control fields.

  4. The buffer management scheme for the new Triumf VAX-based data acquisition and analysis system

    SciTech Connect (OSTI)

    Ludgate, G.A.; Haley, B.; Lee, L.

    1987-08-01T23:59:59.000Z

    The new TRIUMF VAX-based DAAS requires data to be exchanged between acquisition, monitoring and analysis processes executing on a VAX. Data records are passed via a set of buffers contained in a region of memory shared by all processes. The responsibility for buffer management is distributed among the processes and synchronized access to the region is achieved by using the VAX self-relative queue instructions and common event flags.

  5. Automatic generation of skeletal mechanisms for ignition combustion based on level of importance analysis

    SciTech Connect (OSTI)

    Loevaas, Terese [School of Engineering and Materials Sciences, Queen Mary University of London, London E1 4NS (United Kingdom); Department of Engineering and Economy, University of Tromsoe, 9012 Tromsoe (Norway)

    2009-07-15T23:59:59.000Z

    A level of importance (LOI) selection parameter is employed in order to identify species with general low importance to the overall accuracy of a chemical model. This enables elimination of the minor reaction paths in which these species are involved. The generation of such skeletal mechanisms is performed automatically in a pre-processing step ranking species according to their level of importance. This selection criterion is a combined parameter based on a time scale and sensitivity analysis, identifying both short lived species and species with respect to which the observable of interest has low sensitivity. In this work a careful element flux analysis demonstrates that such species do not interact in major reaction paths. Employing the LOI procedure replaces the previous method of identifying redundant species through a two step procedure involving a reaction flow analysis followed by a sensitivity analysis. The flux analysis is performed using DARS {sup copyright}, a digital analysis tool modelling reactive systems. Simplified chemical models are generated based on a detailed ethylene mechanism involving 111 species and 784 reactions (1566 forward and backward reactions) proposed by Wang et al. Eliminating species from detailed mechanisms introduces errors in the predicted combustion parameters. In the present work these errors are systematically studied for a wide range of conditions, including temperature, pressure and mixtures. Results show that the accuracy of simplified models is particularly lowered when the initial temperatures are close to the transition between low- and high-temperature chemistry. A speed-up factor of 5 is observed when using a simplified model containing only 27% of the original species and 19% of the original reactions. (author)

  6. 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

    SciTech Connect (OSTI)

    Fouad, Fouad H.; Peters, Robert W.; Sisiopiku, Virginia P.; Sullivan Andrew J.; Gillette, Jerry; Elgowainy, Amgad; Mintz, Marianne

    2007-12-01T23:59:59.000Z

    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.

  7. Optimal Design of a Fossil Fuel-Based Hydrogen Infrastructure with Carbon Capture and Sequestration: Case Study in Ohio

    E-Print Network [OSTI]

    Johnson, Nils; Yang, Christopher; Ni, Jason; Johnson, Joshua; Lin, Zhenhong; Ogden, Joan M

    2005-01-01T23:59:59.000Z

    Infrastructure with Carbon Capture and Sequestration: CaseINFRASTRUCTURE WITH CARBON CAPTURE AND SEQUESTRATION: CASEhydrogen production with carbon capture and sequestration,

  8. To appear in The International Journal of Intelligent Automation and Soft Computing, 2003 Detection of Welding Flaws with MLP Neural Network and Case Based Reasoning

    E-Print Network [OSTI]

    Triantaphyllou, Evangelos

    Detection of Welding Flaws with MLP Neural Network and Case Based Reasoning T. Warren Liao1 *, E-Ze University, Nei-Li 32026, Chung-Li, Taiwan Abstract - The correct detection of welding flaws is important to the successful development of an automated weld inspection system. As a continuation of our previous efforts

  9. Crossing the Divide: A Case Study of Cross-Cultural Organizational Culture and Leadership Perceptions in a Faith-Based Non-Profit

    E-Print Network [OSTI]

    Muenich, Joelle 1987-

    2012-08-22T23:59:59.000Z

    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...

  10. Quantifying Distributed System Stability through Simulation: A Case Study of an Agent-Based System for Flow Reconstruction of DDoS Attacks

    E-Print Network [OSTI]

    Khan, Bilal

    Quantifying Distributed System Stability through Simulation: A Case Study of an Agent-Based System for Flow Reconstruction of DDoS Attacks Omer Demir Department of Computer Science City University of New denial of service (DDoS) attacks. The pro- posed system provides a description of the structure of flows

  11. Beamforming in MISO Systems: Empirical Results and EVM-based Analysis

    E-Print Network [OSTI]

    Duarte, Melissa; Dick, Chris; Rao, Raghu

    2009-01-01T23:59:59.000Z

    We present an analytical, simulation, and experimental-based study of beamforming Multiple Input Single Output (MISO) systems. We analyze the performance of beamforming MISO systems taking into account implementation complexity and effects of imperfect channel estimate, delayed feedback, real Radio Frequency (RF) hardware, and imperfect timing synchronization. Our results show that efficient implementation of codebook-based beamforming MISO systems with good performance is feasible in the presence of channel and implementation-induced imperfections. As part of our study we develop a framework for Average Error Vector Magnitude Squared (AEVMS)-based analysis of beamforming MISO systems which facilitates comparison of analytical, simulation, and experimental results on the same scale. In addition, AEVMS allows fair comparison of experimental results obtained from different wireless testbeds. We derive novel expressions for the AEVMS of beamforming MISO systems and show how the AEVMS relates to important system ...

  12. Maternal alcohol and coffee drinking, parental smoking and childhood leukemia: a French population-based case-control study

    E-Print Network [OSTI]

    Boyer, Edmond

    472 (407 acute lymphoblastic leukemia, ALL and 62 acute myeloblastic leukemia, AML) incident cases of childhood acute leukemia (AL) and 567 population controls frequency matched with cases on age, gender smoking, either maternal or paternal, was observed in acute leukemia. The present results suggest

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

    E-Print Network [OSTI]

    James, Stephen M.

    2011-08-08T23:59:59.000Z

    -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....

  14. Cho-k-NN: A Method for Combining Interacting Pieces of Evidence in Case-Based Learning

    E-Print Network [OSTI]

    Hüllermeier, Eyke

    .g. a pattern along with its classification in pattern recognition or a problem along with a solution in case retrieved from a case library must not be considered as independent information sources, as implicitly done of classification and regression [Riesbeck and Schank, 1989; Kolodner, 1993]. As the term suggests, in CBL special

  15. Optimal Design of a Fossil Fuel-Based Hydrogen Infrastructure with Carbon Capture and Sequestration: Case Study in Ohio

    E-Print Network [OSTI]

    Johnson, Nils; Yang, Christopher; Ni, Jason; Johnson, Joshua; Lin, Zhenhong; Ogden, Joan M

    2005-01-01T23:59:59.000Z

    M.W. , Initiating hydrogen infrastructures: preliminaryNatural Gas Based Hydrogen Infrastructure – Optimizingof a Fossil Fuel-Based Hydrogen Infrastructure with Carbon

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

    SciTech Connect (OSTI)

    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

    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.

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

    E-Print Network [OSTI]

    Alexander Stroeer; Jordan Camp

    2009-03-11T23:59:59.000Z

    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.

  18. Simulation and physical model based gamma-ray burst afterglow analysis

    E-Print Network [OSTI]

    van Eerten, Hendrik

    2015-01-01T23:59:59.000Z

    Advances in our numerical and theoretical understanding of gamma-ray burst afterglow processes allow us to construct models capable of dealing with complex relativistic jet dynamics and non-thermal emission, that can be compared directly to data from instruments such as Swift. Because afterglow blast waves and power law spectra are intrinsically scale-invariant under changes of explosion energy and medium density, templates can be generated from large-scale hydrodynamics simulations. This allows for iterative template-based model fitting using the physical model parameters (quantifying the properties of the burster, emission and observer) directly as fit variables. Here I review how such an approach to afterglow analysis works in practice, paying special attention to the underlying model assumptions, possibilities, caveats and limitations of this type of analysis. Because some model parameters can be degenerate in certain regions of parameter space, or unconstrained if data in a limited number of a bands is a...

  19. Analysis of photonic Doppler velocimetry data based on the continuous wavelet transform

    SciTech Connect (OSTI)

    Liu Shouxian; Wang Detian; Li Tao; Chen Guanghua; Li Zeren; Peng Qixian [Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-109, Mianyang, Sichuan 621900 (China)

    2011-02-15T23:59:59.000Z

    The short time Fourier transform (STFT) cannot resolve rapid velocity changes in most photonic Doppler velocimetry (PDV) data. A practical analysis method based on the continuous wavelet transform (CWT) was presented to overcome this difficulty. The adaptability of the wavelet family predicates that the continuous wavelet transform uses an adaptive time window to estimate the instantaneous frequency of signals. The local frequencies of signal are accurately determined by finding the ridge in the spectrogram of the CWT and then are converted to target velocity according to the Doppler effects. A performance comparison between the CWT and STFT is demonstrated by a plate-impact experiment data. The results illustrate that the new method is automatic and adequate for analysis of PDV data.

  20. Lubricating-oil basestock data and analysis: based on the ASTM-NBS basestock consistency study

    SciTech Connect (OSTI)

    Becker, D.A.; Hsu, S.M.; Weeks, S.

    1983-10-01T23:59:59.000Z

    In this 13-month study, four virgin oil and six re-refined oil companies submitted monthly production samples to National Bureau of Standards (NBS). There, the samples were subdivided, coded, and sent to 14 participating laboratories for analysis of the physical and chemical properties as well as for evaluation in various bench tests. An eleventh control sample was sent monthly for reference. Various re-refining processes included in the study are: acid/clay; clay treatment; short path distillation; pretreat/vacuum distillation/clay finish; pretreat/hydrogenation. The processes for the virgin base oils are mainly solvent extraction/distillation with and without the hydro-finishing step. In this report the data are grouped into six main categories: (1) theology; (2) physical properties; (3) chemical properties; (4) hydrocarbon type analysis; (5) general performance tests; and (6) oxidation and wear bench tests. Within each category, test results are arranged according to the similarity of the tests or test properties.

  1. Symmetry in Data Mining and Analysis: A Unifying View based on Hierarchy

    E-Print Network [OSTI]

    Fionn Murtagh

    2009-06-01T23:59:59.000Z

    Data analysis and data mining are concerned with unsupervised pattern finding and structure determination in data sets. The data sets themselves are explicitly linked as a form of representation to an observational or otherwise empirical domain of interest. "Structure" has long been understood as symmetry which can take many forms with respect to any transformation, including point, translational, rotational, and many others. Beginning with the role of number theory in expressing data, we show how we can naturally proceed to hierarchical structures. We show how this both encapsulates traditional paradigms in data analysis, and also opens up new perspectives towards issues that are on the order of the day, including data mining of massive, high dimensional, heterogeneous data sets. Linkages with other fields are also discussed including computational logic and symbolic dynamics. The structures in data surveyed here are based on hierarchy, represented as p-adic numbers or an ultrametric topology.

  2. Paper title: A practical model-based statistical approach for generating functional test cases: application in the automotive

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : application in the automotive industry Authors: Roy AWEDIKIAN (Corresponding Author) Affiliation 1 Affiliation 2 : Johnson Controls Automotive Electronics Electronics Division Europe Parc Saint Christophe. This approach was tested on two representative case studies from the automotive industry. The experiment

  3. A new affordable housing model in China : a case-based examination of a private developer's role

    E-Print Network [OSTI]

    Stuchell, Claudine C. (Claudine Cecile)

    2008-01-01T23:59:59.000Z

    This thesis examines the motivations behind Wanhuilou, the first affordable housing development to be initiated, constructed, and subsidized by a private developer--China Vanke. This case presents a pioneering firm and a ...

  4. PC's as graphics stations for the new Triumf VAX-based data acquisition and analysis system

    SciTech Connect (OSTI)

    Ludgate, G.A.; Haley, B.; Lee, L.

    1987-08-01T23:59:59.000Z

    The requirements of fast graphics display and low impact on the data acquisition and analysis system (DAAS) VAX host prompted TRIUMF to adopt PC's on an ethernet as graphics workstations for the new VAX-based DAAS. This multiprocessor solution provides for high speed host to workstation data transfer for image display, and independence of the host's CPU loading for the provision of advanced graphics services such as image storage, replotting, image-data transformations, peak fitting, statistics calculations, comparison of stored images etc.

  5. Genetic Algorithms for Agent-Based Infrastructure Interdependency Modeling and Analysis

    SciTech Connect (OSTI)

    May Permann

    2007-03-01T23:59:59.000Z

    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.

  6. Wavelet Based Color Image Compression and MathematicalWavelet Based Color Image Compression and MathematicalWavelet Based Color Image Compression and MathematicalWavelet Based Color Image Compression and Mathematical Analysis of Sign Entropy CodingAnalysi

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wavelet Based Color Image Compression and MathematicalWavelet Based Color Image Compression and MathematicalWavelet Based Color Image Compression and MathematicalWavelet Based Color Image Compression.olivier@univ-poitiers.fr Abstract One of the advantages of the Discrete Wavelet Transform (DWT) compared to Fourier Transform (e

  7. Constructing a Knowledge Base for Gene Regulatory Dynamics by Formal Concept Analysis Methods

    E-Print Network [OSTI]

    Wollbold, Johannes; Ganter, Bernhard

    2008-01-01T23:59:59.000Z

    Our aim is to build a set of rules, such that reasoning over temporal dependencies within gene regulatory networks is possible. The underlying transitions may be obtained by discretizing observed time series, or they are generated based on existing knowledge, e.g. by Boolean networks or their nondeterministic generalization. We use the mathematical discipline of formal concept analysis (FCA), which has been applied successfully in domains as knowledge representation, data mining or software engineering. By the attribute exploration algorithm, an expert or a supporting computer program is enabled to decide about the validity of a minimal set of implications and thus to construct a sound and complete knowledge base. From this all valid implications are derivable that relate to the selected properties of a set of genes. We present results of our method for the initiation of sporulation in Bacillus subtilis. However the formal structures are exhibited in a most general manner. Therefore the approach may be adapte...

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

    SciTech Connect (OSTI)

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

    2010-03-26T23:59:59.000Z

    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%.

  9. Reducing the environmental impacts of intermodal transportation: a multi-criteria analysis based on ELECTRE and AHP methods

    E-Print Network [OSTI]

    Boyer, Edmond

    Reducing the environmental impacts of intermodal transportation: a multi-criteria analysis on a case of freight transport between Paris and Marseille. Keywords: Supply chain, Environmental impacts with lower environmental impacts, such as rail and waterways. The dilemma here is that all motorized modes

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

    E-Print Network [OSTI]

    Ellerman, A. Denny.

    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, ...

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

    E-Print Network [OSTI]

    Ellerman, A. Denny

    2006-01-01T23:59:59.000Z

    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 ...

  12. Fission matrix-based Monte Carlo criticality analysis of fuel storage pools

    SciTech Connect (OSTI)

    Farlotti, M. [Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109 (United States); Ecole Polytechnique, Palaiseau, F 91128 (France); Larsen, E. W. [Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109 (United States)

    2013-07-01T23:59:59.000Z

    Standard Monte Carlo transport procedures experience difficulties in solving criticality problems in fuel storage pools. Because of the strong neutron absorption between fuel assemblies, source convergence can be very slow, leading to incorrect estimates of the eigenvalue and the eigenfunction. This study examines an alternative fission matrix-based Monte Carlo transport method that takes advantage of the geometry of a storage pool to overcome this difficulty. The method uses Monte Carlo transport to build (essentially) a fission matrix, which is then used to calculate the criticality and the critical flux. This method was tested using a test code on a simple problem containing 8 assemblies in a square pool. The standard Monte Carlo method gave the expected eigenfunction in 5 cases out of 10, while the fission matrix method gave the expected eigenfunction in all 10 cases. In addition, the fission matrix method provides an estimate of the error in the eigenvalue and the eigenfunction, and it allows the user to control this error by running an adequate number of cycles. Because of these advantages, the fission matrix method yields a higher confidence in the results than standard Monte Carlo. We also discuss potential improvements of the method, including the potential for variance reduction techniques. (authors)

  13. Loading and Regeneration Analysis of a Diesel Particulate Filter with a Radio Frequency-Based Sensor

    SciTech Connect (OSTI)

    Sappok, Alex [Filter Sensing Technologies] [Filter Sensing Technologies; Prikhodko, Vitaly Y [ORNL] [ORNL; Parks, II, James E [ORNL

    2010-01-01T23:59:59.000Z

    Accurate knowledge of diesel particulate filter (DPF) loading is critical for robust and efficient operation of the combined engine-exhaust aftertreatment system. Furthermore, upcoming on-board diagnostics regulations require on-board technologies to evaluate the status of the DPF. This work describes the application of radio frequency (RF) based sensing techniques to accurately measure DPF soot levels and the spatial distribution of the accumulated material. A 1.9L GM turbo diesel engine and a DPF with an RF-sensor were studied. Direct comparisons between the RF measurement and conventional pressure-based methods were made. Further analysis of the particulate matter loading rates was obtained with a mass-based soot emission measurement instrument (TEOM). Comparison with pressure drop measurements show the RF technique is unaffected by exhaust flow variations and exhibits a high degree of sensitivity to DPF soot loading and good dynamic response. Additional computational and experimental work further illustrates the spatial resolution of the RF measurements. Based on the experimental results, the RF technique shows significant promise for improving DPF control enabling optimization of the combined engine-aftertreatment system for improved fuel economy and extended DPF service life.

  14. Physically based modeling of rainfall-triggered landslides: a case study in the Luquillo forest, Puerto Rico

    E-Print Network [OSTI]

    Arnone, E.

    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 ...

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

    SciTech Connect (OSTI)

    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

    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)

  16. Mobility analysis tool based on the fundamental principle of conservation of energy.

    SciTech Connect (OSTI)

    Spletzer, Barry Louis; Nho, Hyuchul C.; Salton, Jonathan Robert

    2007-08-01T23:59:59.000Z

    In the past decade, a great deal of effort has been focused in research and development of versatile robotic ground vehicles without understanding their performance in a particular operating environment. As the usage of robotic ground vehicles for intelligence applications increases, understanding mobility of the vehicles becomes critical to increase the probability of their successful operations. This paper describes a framework based on conservation of energy to predict the maximum mobility of robotic ground vehicles over general terrain. The basis of the prediction is the difference between traction capability and energy loss at the vehicle-terrain interface. The mission success of a robotic ground vehicle is primarily a function of mobility. Mobility of a vehicle is defined as the overall capability of a vehicle to move from place to place while retaining its ability to perform its primary mission. A mobility analysis tool based on the fundamental principle of conservation of energy is described in this document. The tool is a graphical user interface application. The mobility analysis tool has been developed at Sandia National Laboratories, Albuquerque, NM. The tool is at an initial stage of development. In the future, the tool will be expanded to include all vehicles and terrain types.

  17. The Milling Assistant, Case-Based Reasoning, and machining strategy: A report on the development of automated numerical control programming systems at New Mexico State University

    SciTech Connect (OSTI)

    Burd, W. [Sandia National Labs., Albuquerque, NM (United States); Culler, D.; Eskridge, T.; Cox, L.; Slater, T. [New Mexico State Univ., Las Cruces, NM (United States)

    1993-08-01T23:59:59.000Z

    The Milling Assistant (MA) programming system demonstrates the automated development of tool paths for Numerical Control (NC) machine tools. By integrating a Case-Based Reasoning decision processor with a commercial CAD/CAM software, intelligent tool path files for milled and point-to-point features can be created. The operational system is capable of reducing the time required to program a variety of parts and improving product quality by collecting and utilizing ``best of practice`` machining strategies.

  18. CALORIMETER-BASED ADJUSTMENT OF MULTIPLICITY DETERMINED 240PU EFF KNOWN-A ANALYSIS FOR THE ASSAY OF PLUTONIUM

    SciTech Connect (OSTI)

    Dubose, F.

    2012-02-21T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    James, Stephen M.

    2011-08-08T23:59:59.000Z

    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...

  20. Parameter Estimation and Capacity Fade Analysis of Lithium-Ion Batteries Using First-Principles-Based Efficient Reformulated Models

    E-Print Network [OSTI]

    Subramanian, Venkat

    Parameter Estimation and Capacity Fade Analysis of Lithium-Ion Batteries Using First parameters of lithium-ion batteries are estimated using a first-principles electrochemical engineering model and understanding of lithium-ion batteries using physics-based first-principles models. These models are based

  1. AN IN-DEPTH STUDY OF GRID-BASED ASTEROSEISMIC ANALYSIS

    SciTech Connect (OSTI)

    Gai Ning [Department of Astronomy, Beijing Normal University, Beijing 100875 (China); Basu, Sarbani [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States); Chaplin, William J.; Elsworth, Yvonne, E-mail: gaining@mail.bnu.edu.cn, E-mail: sarbani.basu@yale.edu, E-mail: w.j.chaplin@bham.ac.uk, E-mail: y.p.elsworth@bham.ac.uk [School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom)

    2011-04-01T23:59:59.000Z

    NASA's Kepler mission is providing basic asteroseismic data for hundreds of stars. One of the more common ways of determining stellar characteristics from these data is by the so-called grid-based modeling. We have made a detailed study of grid-based analysis techniques to study the errors (and error correlations) involved. As had been reported earlier, we find that it is relatively easy to get very precise values of stellar radii using grid-based techniques. However, we find that there are small, but significant, biases that can result because of the grid of models used. The biases can be minimized if metallicity is known. Masses cannot be determined as precisely as the radii and suffer from larger systematic effects. We also find that the errors in mass and radius are correlated. A positive consequence of this correlation is that log g can be determined both precisely and accurately with almost no systematic biases. Radii and log g can be determined with almost no model dependence to within 5% for realistic estimates of errors in asteroseismic and conventional observations. Errors in mass can be somewhat higher unless accurate metallicity estimates are available. Age estimates of individual stars are the most model dependent. The errors are larger, too. However, we find that for star clusters, it is possible to get a relatively precise age if one assumes that all stars in a given cluster have the same age.

  2. Distributed Energy Resources at Naval Base Ventura County Building1512: A Sensitivity Analysis

    SciTech Connect (OSTI)

    Bailey, Owen C.; Marnay, Chris

    2005-06-05T23:59:59.000Z

    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.

  3. Analysis of the Christensen et al. Clauser-Horne (CH)-Inequality-Based Test of Local Realism

    E-Print Network [OSTI]

    Donald A. Graft

    2015-01-03T23:59:59.000Z

    The Clauser-Horne (CH) inequality can validly test aspects of locality when properly applied. This paper analyzes a recent CH-based EPRB experiment, the Christensen et al. experiment. Full details of the data analysis applied to the experiment are given. It is shown that the experiment confirms locality and disconfirms the quantum joint prediction. Additionally, the paper contributes to promulgation of robust and correct data analysis by describing the important degrees of freedom that affect the analysis, and that must be addressed in the analysis of any experiment.

  4. AVERAGE-CASE ANALYSIS OF PERFECT SORTING BY REVERSALS MATHILDE BOUVEL, CEDRIC CHAUVE, MARNI MISHNA, AND DOMINIQUE ROSSIN

    E-Print Network [OSTI]

    Chauve, Cedric

    , AND DOMINIQUE ROSSIN Abstract. Perfect sorting by reversals, a problem originating in computational genomics analysis of a sorting algorithm from computational genomics by generating function analysis of a family of trees. Motivation: a computational genomics problem. With the availability of a growing number

  5. Mars Mission Analysis Trades Based on Legacy and Future Nuclear Propulsion Options

    SciTech Connect (OSTI)

    Joyner, Russell [Pratt and Whitney Rocketdyne, West Palm Beach, Florida (United States); Lentati, Andrea [Georgia Institute of Technology, Atlanta, Georgia (United States); Cichon, Jaclyn [University of Florida, Gainesville, Florida (United States)

    2007-01-30T23:59:59.000Z

    The purpose of this paper is to discuss the results of mission-based system trades when using a nuclear thermal propulsion (NTP) system for Solar System exploration. The results are based on comparing reactor designs that use a ceramic-metallic (CERMET), graphite matrix, graphite composite matrix, or carbide matrix fuel element designs. The composite graphite matrix and CERMET designs have been examined for providing power as well as propulsion. Approaches to the design of the NTP to be discussed will include an examination of graphite, composite, carbide, and CERMET core designs and the attributes of each in regards to performance and power generation capability. The focus is on NTP approaches based on tested fuel materials within a prismatic fuel form per the Argonne National Laboratory testing and the ROVER/NERVA program. NTP concepts have been examined for several years at Pratt and Whitney Rocketdyne for use as the primary propulsion for human missions beyond earth. Recently, an approach was taken to examine the design trades between specific NTP concepts; NERVA-based (UC)C-Graphite, (UC,ZrC)C-Composite, (U,Zr)C-Solid Carbide and UO2-W CERMET. Using Pratt and Whitney Rocketdyne's multidisciplinary design analysis capability, a detailed mission and vehicle model has been used to examine how several of these NTP designs impact a human Mars mission. Trends for the propulsion system mass as a function of power level (i.e. thrust size) for the graphite-carbide and CERMET designs were established and correlated against data created over the past forty years. These were used for the mission trade study. The resulting mission trades presented in this paper used a comprehensive modeling approach that captures the mission, vehicle subsystems, and NTP sizing.

  6. Achieving HR-Firm Performance Linkage through Organizational Strategy Implementation: Qualitative Case Studies of Four U.S. Based Firms 

    E-Print Network [OSTI]

    Alagaraja, Meera

    2012-02-14T23:59:59.000Z

    LQS Lean and Quality Strategy HRM&D Human Resource Management & Development C1 Company 1 (Industrial Distributor) C2 Company 2 (Electronics Distributor) C3 Company 3 (Automotive Distributor) C4 Company 4 (Chemical Distributor) ix TABLE..., electronics, automotive and chemical), they jointly shared and yet differentiate firm and HR specific characteristics. Thus organizations situate HRM&D differently in the cases offering a balance of similarity and differences in leveraging available...

  7. PSCAD/EMTDC-Based Modeling and Analysis of a Microgrid with Renewable Energy Sources

    E-Print Network [OSTI]

    Chu, Zhengguo

    2010-07-14T23:59:59.000Z

    . 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...

  8. PSCAD/EMTDC-Based Modeling and Analysis of a Microgrid with Renewable Energy Sources 

    E-Print Network [OSTI]

    Chu, Zhengguo

    2010-07-14T23:59:59.000Z

    . 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...

  9. Analysis of a Quantum Nondemolition Measurement Scheme Based on Kerr Nonlinearity in Photonic Crystal Waveguides

    E-Print Network [OSTI]

    Ilya Fushman; Jelena Vuckovic

    2006-03-16T23:59:59.000Z

    We discuss the feasibility of a quantum nondemolition measurement (QND) of photon number based on cross phase modulation due to the Kerr effect in Photonic Crystal Waveguides (PCWs). In particular, we derive the equations for two modes propagating in PCWs and their coupling by a third order nonlinearity. The reduced group velocity and small cross-sectional area of the PCW lead to an enhancement of the interaction relative to bulk materials. We show that in principle, such experiments may be feasible with current photonic technologies, although they are limited by material properties. Our analysis of the propagation equations is sufficiently general to be applicable to the study of soliton formation, all-optical switching and can be extended to processes involving other orders of the nonlinearity.

  10. Cut set-based risk and reliability analysis for arbitrarily interconnected networks

    DOE Patents [OSTI]

    Wyss, Gregory D. (Albuquerque, NM)

    2000-01-01T23:59:59.000Z

    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.

  11. Improving Resolution in k and r Space: A FEFF-based Wavelet for EXAFS Data Analysis

    SciTech Connect (OSTI)

    Funke, H.; Scheinost, A. C. [Research Centre Rossendorf, Institute of Radiochemistry, Dresden (Germany); Rossendorf Beamline at ESRF (BM20), Grenoble (France); Chukalina, M. [Institute of Microelectronics Technology RAS, Chernogolovka (Russian Federation); Voegelin, A. [Institute of Terrestrial Ecology, Swiss Federal Institute of Technology (ETH) Zurich (Switzerland)

    2007-02-02T23:59:59.000Z

    Applying a wavelet analysis based on the Morlet mother function, we previously demonstrated the presence of both Al and Zn atoms in the first metal shell (r {approx_equal} 3 A from the central Zn atom) of Zn-Al layered double hydroxide (LDH). However, this approach was not suited to resolve the second and third metal shells (r {approx_equal} 5 - 6 A) in r and k space independently. Therefore, we developed a new FEFF-Morlet wavelet, where the EXAFS function itself, extracted from the FEFF model, is combined with the complex Morlet wavelet. With this method, we were able to distinguish the second metal shell (Zn atoms only) from the third metal shell (Zn and Al atoms), thereby proving a regular, dioctahedral distribution of Zn atoms in the hydroxide layers.

  12. Convergence analysis of a CMFD method based on generalized equivalence theory

    SciTech Connect (OSTI)

    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

    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)

  13. Safety analysis of B and W Standard PWR using thorium-based fuels

    SciTech Connect (OSTI)

    Uotinen, V.O.; Carroll, W.P.; Jones, H.M.; Toops, E.C.

    1980-06-01T23:59:59.000Z

    A study was performed to assess the safety and licenseability of the Babcock and Wilcox standard 205-fuel assembly PWR when it is fueled with three types of thoria-based fuels denatured (/sup 233/U//sup 238/U-Th)O/sub 2/, denatured (/sup 235//U/sup 238/U-Th)O/sub 2/, and (Th-Pu)O/sub 2/. Selected transients were analyzed using typical PWR safety analysis calculational methods. The results support the conclusion that it is feasible from a safety standpoint to utilize either of the denatured urania-thoria fuels in the standard B and W plant. In addition, it appears that the use of thoria-plutonia fuels would probably also be feasible. These tentative conclusions depend on a data that is more limited than that available for UO/sub 2/ fuels.

  14. Model-Based Analysis of Electric Drive Options for Medium-Duty Parcel Delivery Vehicles: Preprint

    SciTech Connect (OSTI)

    Barnitt, R. A.; Brooker, A. D.; Ramroth, L.

    2010-12-01T23:59:59.000Z

    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.

  15. Analysis of laser remote fusion cutting based on a mathematical model

    SciTech Connect (OSTI)

    Matti, R. S. [Department of Engineering Sciences and Mathematics, Luleå University of Technology, S-971 87 Luleå (Sweden); Department of Mechanical Engineering, College of Engineering, University of Mosul, Mosul (Iraq); Ilar, T.; Kaplan, A. F. H. [Department of Engineering Sciences and Mathematics, Luleå University of Technology, S-971 87 Luleå (Sweden)

    2013-12-21T23:59:59.000Z

    Laser remote fusion cutting is analyzed by the aid of a semi-analytical mathematical model of the processing front. By local calculation of the energy balance between the absorbed laser beam and the heat losses, the three-dimensional vaporization front can be calculated. Based on an empirical model for the melt flow field, from a mass balance, the melt film and the melting front can be derived, however only in a simplified manner and for quasi-steady state conditions. Front waviness and multiple reflections are not modelled. The model enables to compare the similarities, differences, and limits between laser remote fusion cutting, laser remote ablation cutting, and even laser keyhole welding. In contrast to the upper part of the vaporization front, the major part only slightly varies with respect to heat flux, laser power density, absorptivity, and angle of front inclination. Statistical analysis shows that for high cutting speed, the domains of high laser power density contribute much more to the formation of the front than for low speed. The semi-analytical modelling approach offers flexibility to simplify part of the process physics while, for example, sophisticated modelling of the complex focused fibre-guided laser beam is taken into account to enable deeper analysis of the beam interaction. Mechanisms like recast layer generation, absorptivity at a wavy processing front, and melt film formation are studied too.

  16. A critical analysis of power in the institutionalization of changes in a new teacher mentoring program: a case study

    E-Print Network [OSTI]

    Ferguson, Phyllis Cavanaugh

    2009-05-15T23:59:59.000Z

    The purpose of this case study is to describe the way power, as individual agency, works in the space of institutionalization of a new teacher mentoring program. The space of institutionalization is thought of as a space in which the design...

  17. Analysis of Frequency, Magnitude and Consequence of Worst-Case Spills From the Proposed Keystone XL Pipeline

    E-Print Network [OSTI]

    Farritor, Shane

    approval to build the Keystone XL pipeline from Alber- ta, Canada to Texas. The pipeline will transport to a worst-case discharge and any smaller spills. The Keystone XL environmental assessment documents (e that the environmental assessment docu- ments for the Keystone XL pipeline are inadequate, and that they do not properly

  18. Functional-analysis based tool for testing quark-hadron duality

    E-Print Network [OSTI]

    Irinel Caprini; Maarten Golterman; Santiago Peris

    2014-07-09T23:59:59.000Z

    Quark-hadron duality is a key concept in QCD, allowing for the description of physical hadronic observables in terms of quark-gluon degrees of freedom. The modern theoretical framework for its implementation is Wilson's operator product expansion (OPE), supplemented by analytic extrapolation from large Euclidean momenta, where the OPE is defined, to the Minkowski axis, where observable quantities are defined. Recently, the importance of additional terms in the expansion of QCD correlators near the Minkowski axis, responsible for quark-hadron duality violations (DVs), was emphasized. In this paper we introduce a mathematical tool that might be useful for the study of DVs in QCD. It is based on finding the minimal distance, measured in the $L^\\infty$ norm along a contour in the complex momentum plane, between a class of admissible functions containing the physical amplitude and the asymptotic expansion predicted by the OPE. This minimal distance is given by the norm of a Hankel matrix that can be calculated exactly, using as input the experimental spectral function on a finite interval of the timelike axis. We also comment on the relation between the new functional tool and the more commonly used $\\chi^2$-based analysis. The approach is illustrated on a toy model for the QCD polarization function recently proposed in the literature.

  19. Knowledge-based analysis of microarray gene expression data by using support vector machines

    SciTech Connect (OSTI)

    William Grundy; Manuel Ares, Jr.; David Haussler

    2001-06-18T23:59:59.000Z

    The authors introduce a method of functionally classifying genes by using gene expression data from DNA microarray hybridization experiments. The method is based on the theory of support vector machines (SVMs). SVMs are considered a supervised computer learning method because they exploit prior knowledge of gene function to identify unknown genes of similar function from expression data. SVMs avoid several problems associated with unsupervised clustering methods, such as hierarchical clustering and self-organizing maps. SVMs have many mathematical features that make them attractive for gene expression analysis, including their flexibility in choosing a similarity function, sparseness of solution when dealing with large data sets, the ability to handle large feature spaces, and the ability to identify outliers. They test several SVMs that use different similarity metrics, as well as some other supervised learning methods, and find that the SVMs best identify sets of genes with a common function using expression data. Finally, they use SVMs to predict functional roles for uncharacterized yeast ORFs based on their expression data.

  20. Advances in X-Ray Chemical Analysis, Japan, 43 (2012) ISSN 0911-7806 Reviews on Forensic Analysis of Wakayama Arsenic Case

    E-Print Network [OSTI]

    Jun, Kawai

    in the legal advices submitted to the court was reviewed. Though it was believed that SPring-8 XRF has a large-ray fluorescence analysis (SR-XRF) is used for forensic analysis. It has been clarified that the SPring- 8 SR-XRF was not a major contribution, and if the SR-XRF were too much depended on, it is pointed out that the decision may

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

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2005-01-01T23:59:59.000Z

    Resources at Naval Base Ventura Country Building 1512 6.Resources at Navy Base Ventura County Building 1512. ”August 2001. “Naval Base Ventura County Standby Generator

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

    SciTech Connect (OSTI)

    Mills, Evan; Mathew, Paul

    2009-04-01T23:59:59.000Z

    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. Energy savings are ex

  3. analysis-based prognostic factors: Topics by E-print Network

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

    Sciences Websites Summary: major contributions: Butterfly Analysis and Chrysalis Analysis, as well as extensions to both enabling explicit tracking of uncertainty....

  4. analysis study-based approach: Topics by E-print Network

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

    concept drives the analysis to the aimed specification part whereas the second allows Zachmann, Gabriel 9 Multiresolution morphological approach to document image analysis CiteSeer...

  5. A Comparative SWOT Analysis of the National Agricultural Extension Program Organization to Determine Best-Fit Program Model: A Case Study of the North West and South West Regions of Cameroon.

    E-Print Network [OSTI]

    Nyambi, Gwendoline

    2012-07-16T23:59:59.000Z

    A COMPARATIVE SWOT ANALYSIS OF THE NATIONAL AGRICULTURAL EXTENSION PROGRAM ORGANIZATION TO DETERMINE BEST-FIT PROGRAM MODEL: A CASE STUDY OF THE NORTH WEST AND SOUTH WEST REGIONS OF CAMEROON A Dissertation by GWENDOLINE NA-AH NYAMBI... A Comparative SWOT Analysis of the National Agricultural Extension Program Organization to Determine Best-Fit Program Model: A Case Study of the North West and South West Regions of Cameroon Copyright 2012 Gwendoline Na-ah Nyambi A COMPARATIVE...

  6. Exploring scaling up community-based adaptation: A case study with the PRODUCE Project in Rangpur, Bangladesh 

    E-Print Network [OSTI]

    Harsoyo, Dwi, L. R.

    2012-11-29T23:59:59.000Z

    is an approach to respond to these immediate impacts by adjusting the natural or human systems in response to actual impacts of climate change. Community-based adaptation (CBA) is a bottom-up and development-oriented view of adaptation that accommodates...

  7. Achieving HR-Firm Performance Linkage through Organizational Strategy Implementation: Qualitative Case Studies of Four U.S. Based Firms

    E-Print Network [OSTI]

    Alagaraja, Meera

    2012-02-14T23:59:59.000Z

    elaborates on ways in which organizations achieve the HR-firm performance linkage using the resource-based view of the firm as a theoretical framework. In order to do so, the study examined HRM&D function involvement in lean and quality strategy (LQS...

  8. A web-based method of distributing spatial resources for free: a case study of orienteering maps 

    E-Print Network [OSTI]

    Heron, Kyle

    2010-11-24T23:59:59.000Z

    The purpose of this project was to develop a web-based method for distributing a spatial resource for free. In order for a service like this to be effective, a way of searching for the resource and providing it must both be made available...

  9. Automating Embedded Analysis Capabilities and Managing Software Complexity in Multiphysics Simulation, Part I: Template-Based Generic Programming

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

    Pawlowski, Roger P.; Phipps, Eric T.; Salinger, Andrew G.

    2012-01-01T23:59:59.000Z

    An approach for incorporating embedded simulation and analysis capabilities in complex simulation codes through template-based generic programming is presented. This approach relies on templating and operator overloading within the C++ language to transform a given calculation into one that can compute a variety of additional quantities that are necessary for many state-of-the-art simulation and analysis algorithms. An approach for incorporating these ideas into complex simulation codes through general graph-based assembly is also presented. These ideas have been implemented within a set of packages in the Trilinos framework and are demonstrated on a simple problem from chemical engineering.

  10. Design-Build and CM at Risk- comparative analysis for owner decision making based on case studies and project surveys

    E-Print Network [OSTI]

    Park, Soon Rock

    2012-07-16T23:59:59.000Z

    Currently, many researchers and stakeholders believe that effective delivery systems for construction projects are key to improving project quality and value in the construction industry. Therefore, it is important that owners use the best project...

  11. Critical analysis of the Hanford spent nuclear fuel project activity based cost estimate

    SciTech Connect (OSTI)

    Warren, R.N.

    1998-09-29T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2005-01-01T23:59:59.000Z

    2003. “Distributed Energy Resources in Practice: A Case2004. “Distributed Energy Resources Customer Adoption ModelDistributed Energy Resource Technology Characterizations”

  13. Nickel-based superalloy operating temperature determination via analysis of gamma/gamma' microstructure and coating/base material interdiffusion

    E-Print Network [OSTI]

    Ham, Wendy D. (Wendy Decker)

    2005-01-01T23:59:59.000Z

    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 ...

  14. Five case studies of multifamily weatherization programs

    SciTech Connect (OSTI)

    Kinney, L; Wilson, T.; Lewis, G. [Synertech Systems Corp. (United States)] [Synertech Systems Corp. (United States); MacDonald, M. [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States)

    1997-12-31T23:59:59.000Z

    The multifamily case studies that are the subject of this report were conducted to provide a better understanding of the approach taken by program operators in weatherizing large buildings. Because of significant variations in building construction and energy systems across the country, five states were selected based on their high level of multifamily weatherization. This report summarizes findings from case studies conducted by multifamily weatherization operations in five cities. The case studies were conducted between January and November 1994. Each of the case studies involved extensive interviews with the staff of weatherization subgrantees conducting multifamily weatherization, the inspection of 4 to 12 buildings weatherized between 1991 and 1993, and the analysis of savings and costs. The case studies focused on innovative techniques which appear to work well.

  15. APT Blanket System Loss-of-Coolant Accident (LOCA) Based on Initial Conceptual Design - Case 2: with Beam Shutdown Only

    SciTech Connect (OSTI)

    Hamm, L.L.

    1998-10-07T23:59:59.000Z

    This report is one of a series of reports that document normal operation and accident simulations for the Accelerator Production of Tritium (APT) blanket heat removal system. These simulations were performed for the Preliminary Safety Analysis Report. This report documents the results of simulations of a Loss-of-Flow Accident (LOFA) where power is lost to all of the pumps that circulate water in the blanket region, the accelerator beam is shut off and neither the residual heat removal nor cavity flood systems operate.

  16. High-Throughput Genetic Analysis and Combinatorial Chiral Separations Based on Capillary Electrophoresis

    SciTech Connect (OSTI)

    Wenwan Zhong

    2003-08-05T23:59:59.000Z

    Capillary electrophoresis (CE) offers many advantages over conventional analytical methods, such as speed, simplicity, high resolution, low cost, and small sample consumption, especially for the separation of enantiomers. However, chiral method developments still can be time consuming and tedious. They designed a comprehensive enantioseparation protocol employing neutral and sulfated cyclodextrins as chiral selectors for common basic, neutral, and acidic compounds with a 96-capillary array system. By using only four judiciously chosen separation buffers, successful enantioseparations were achieved for 49 out of 54 test compounds spanning a large variety of pKs and structures. Therefore, unknown compounds can be screened in this manner to identify optimal enantioselective conditions in just one rn. In addition to superior separation efficiency for small molecules, CE is also the most powerful technique for DNA separations. Using the same multiplexed capillary system with UV absorption detection, the sequence of a short DNA template can be acquired without any dye-labels. Two internal standards were utilized to adjust the migration time variations among capillaries, so that the four electropherograms for the A, T, C, G Sanger reactions can be aligned and base calling can be completed with a high level of confidence. the CE separation of DNA can be applied to study differential gene expression as well. Combined with pattern recognition techniques, small variations among electropherograms obtained by the separation of cDNA fragments produced from the total RNA samples of different human tissues can be revealed. These variations reflect the differences in total RNA expression among tissues. Thus, this Ce-based approach can serve as an alternative to the DNA array techniques in gene expression analysis.

  17. Depositional Model of the Marcellus Shale in West Virginia Based on Facies Analysis

    SciTech Connect (OSTI)

    Bruner, Kathy

    2011-11-14T23:59:59.000Z

    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).

  18. Submersion Criticality Safety Analysis of Tungsten-Based Fuel for Nuclear Power and Propulsion Applications

    SciTech Connect (OSTI)

    A.E. Craft; R. C. O'Brien; S. D. Howe; J. C. King

    2014-07-01T23:59:59.000Z

    The Center for Space Nuclear Research (CSNR) is developing tungsten-encapsulated fuels for space nuclear applications. Aims to develop NTP fuels that are; Affordable Low impact on production and testing environment Producible on a large scale over suitable time period Higher-performance compared to previous graphite NTP fuel elements Space nuclear reactors remain subcritical before and during launch, and do not go critical until required by its mission. A properly designed reactor will remain subcritical in any launch abort scenario, where the reactor falls back to Earth and becomes submerged in terrestrial material. Submersion increases neutron reflection and thermalizes the neutrons, which typically increases the reactivity of the core. This effect is usually very significant for fast-spectrum reactors. This research provided a submersion criticality safety analysis for a representative tungsten/uranium oxide fueled reactor. Determine the submersion behavior of a reactor fueled by tungsten-based fuel. Considered fuel compositions with varying: Rhenium content (wt% rhenium in tungsten) Fuel loading fractions (UO2 vol%)

  19. Low NOx Burner Design and Analysis for Conceptual Design of Oxygen-Based PC Boiler

    SciTech Connect (OSTI)

    Andrew Seltzer

    2005-05-01T23:59:59.000Z

    The objective of the low NOx burner design and analysis task of the Conceptual Design of Oxygen-Based PC Boiler study is to optimize the burner design to ensure stable ignition, to provide safe operation, and to minimize pollutant formation. The burners were designed and analyzed using the Fluent computer program. Four burner designs were developed: (1) with no over-fire gas (OFG) and 65% flue gas recycle, (2) with 20% OFG and 65% flue gas recycle, (3) with no OFG and 56% flue gas recycle and (4) with 20% OFG and 56% flue gas recycle. A 3-D Fluent simulation was made of a single wall-fired burner and horizontal portion of the furnace from the wall to the center. Without primary gas swirl, coal burnout was relatively small, due to the low oxygen content of the primary gas stream. Consequently, the burners were modified to include primary gas swirl to bring the coal particles in contact with the secondary gas. An optimal primary gas swirl was chosen to achieve sufficient burnout.

  20. Science-Based Simulation Model of Human Performance for Human Reliability Analysis

    SciTech Connect (OSTI)

    Dana L. Kelly; Ronald L. Boring; Ali Mosleh; Carol Smidts

    2011-10-01T23:59:59.000Z

    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.

  1. Web-based Training for Development of Traffic Analysis Technical Skills SP&R, Part I Special Studies Request

    E-Print Network [OSTI]

    Detwiler, Russell

    ) to include system monitoring and evaluation, maintenance and preservation, transportation demand management regional/local partners that will provide a foundation for traffic analysis technical skills. The knowledge base will help managers and staff within our Department to make practical and realistic decisions

  2. An effective technique for the software requirements analysis of NPP safety-critical systems, based on software inspection, requirements

    E-Print Network [OSTI]

    &V) is therefore emphasized for nuclear safety. Inspection is widely believed to be an effective techniqueAn effective technique for the software requirements analysis of NPP safety-critical systems, based Seonga , Junbeom Yoob , Sung Deok Chab , Yeong Jae Yooc,1 a Department of Nuclear and Quantum Engineering

  3. Induction Motor Fault Diagnosis Using a Hilbert-Park Lissajou's Curve Analysis and Neural Network-Based Decision

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    used. The proposed fault signature does not require a long temporal recording, and their processing signature analysis (MCSA) with advanced signal processing algorithms is proposed. In [7], authors propose stator current. The approach is based on the extraction of the signal envelop by Hilbert transformation

  4. A multi-site analysis of random error in tower-based measurements of carbon and energy fluxes

    E-Print Network [OSTI]

    A multi-site analysis of random error in tower-based measurements of carbon and energy fluxes 2006 Abstract Measured surface-atmosphere fluxes of energy (sensible heat, H, and latent heat, LE of which include ``tall tower'' instrumentation), one grassland site, and one agricultural site, to conduct

  5. A multi-site analysis of random error2 in tower-based measurements of carbon and energy fluxes3

    E-Print Network [OSTI]

    1 A multi-site analysis of random error2 in tower-based measurements of carbon and energy fluxes3 4 Forest Service, 271 Mast Road, Durham, NH 03824 USA.25 #12;RANDOM ERRORS IN ENERGY AND CO2 FLUX MEASUREMENTS Richardson et al. 1 January 13, 2006 Abstract1 Measured surface-atmosphere fluxes of energy

  6. An Agent-Based System Assisting Humans in Complex Tasks by Analysis of a Human's State and Performance

    E-Print Network [OSTI]

    Treur, Jan

    becomes too high, the agent can assist the human in a number of ways. Experiments show that the supportAn Agent-Based System Assisting Humans in Complex Tasks by Analysis of a Human's State, michael}@forcevisionlab.nl Abstract Human task performance varies depending on the task, environment

  7. POWER ELECTRONICS HARMONIC ANALYSIS BASED ON THE LINEAR TIME PERIODIC MODELING. APPLICATIONS FOR AC/DC/AC POWER

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    /Simulink simulations. Key words: power system harmonics, power electronic, linear time periodic modeling, PWM, control1 POWER ELECTRONICS HARMONIC ANALYSIS BASED ON THE LINEAR TIME PERIODIC MODELING. APPLICATIONS in power electronic systems. The considered system is described by a set of differential equations, which

  8. Applied Catalysis A: General 219 (2001) 215222 Structural analysis of unpromoted Fe-based FischerTropsch

    E-Print Network [OSTI]

    Iglesia, Enrique

    2001-01-01T23:59:59.000Z

    Applied Catalysis A: General 219 (2001) 215­222 Structural analysis of unpromoted Fe-based Fischer­Tropsch by Mössbauer emission and X-ray absorption spectroscopies after use in the Fischer­Tropsch synthesis (FTS reactant mixture. © 2001 Elsevier Science B.V. All rights reserved. Keywords: Fischer­Tropsch synthesis; X

  9. TRAINING-AND CONTEST-SCHEDULING IN ENDURANCE SPORTS BY MEANS OF COURSE PROFILES AND PERPOT-BASED ANALYSIS

    E-Print Network [OSTI]

    Perl, Jürgen

    profile (graphic on bottom), that the slope-caused load can affect the heart rate profile (graphic-based analysis can help for predicting perform- ance profiles in context-depending load situations and supportingTRAINING- AND CONTEST-SCHEDULING IN ENDURANCE SPORTS BY MEANS OF COURSE PROFILES AND PERPOT

  10. Experimental analysis and model-based optimization of microalgae growth in photo-bioreactors using flue gas

    E-Print Network [OSTI]

    Subramanian, Venkat

    great potential for converting flue gas to biomass. Microalgae can capture solar energy more efficientlyExperimental analysis and model-based optimization of microalgae growth in photo-bioreactors using flue gas Lian He, Venkat R. Subramanian, Yinjie J. Tang* Department of Energy, Environmental

  11. Case Studies

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

    Case Studies Case Studies The following case studies will be included in the HEP report. Final case studies are due January 7, 2013. Lattice Gauge Theories - Lead: Doug Toussaint...

  12. Monitoring-Based Commissioning: Benchmarking Analysis of 24 University Buildings in California

    E-Print Network [OSTI]

    Mills, Evan

    2014-01-01T23:59:59.000Z

    2006. “Monitoring-Based Commissioning: Early Results from aConference on Building Commissioning. Portland, Ore. : PECI.2011. “Monitoring-Based Commissioning”. Website: http://uc-

  13. Query-driven Analysis of Plasma-based Particle Acceleration Data

    E-Print Network [OSTI]

    Ruebel, Oliver

    2014-01-01T23:59:59.000Z

    A BSTRACT Plasma-based particle accelerators can produce andof conventional particle accelerators. There is a pressingplasma-based particle accelerator designs. To address this

  14. activity-based cost analysis: Topics by E-print Network

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

    Paris-Sud XI, Universit de 6 Le Time Driven Activity Based Costing (TDABC): "New Wine, or Just New Bottles?" Physics Websites Summary: Le Time Driven Activity Based...

  15. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy E.

    1999-01-01T23:59:59.000Z

    the Analysis of High Power Battery Designs, Report for the201 Peak Power Battery261 Peak Power Battery

  16. SAFETY ANALYSIS OF A RADIO-BASED CROSSING CONTROL SYSTEM USING FORMAL

    E-Print Network [OSTI]

    Reif, Wolfgang

    ), failure mode and e#11;ects anal- ysis (FMEA) (Reifer 1979), or hazard and oper- ability analysis (HAZOP

  17. Systems Analysis of an Advanced Nuclear Fuel Cycle Based on a Modified UREX+3c Process

    SciTech Connect (OSTI)

    E. R. Johnson; R. E. Best

    2009-12-28T23:59:59.000Z

    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

  18. Analysis on fuel breeding capability of FBR core region based on minor actinide recycling doping

    SciTech Connect (OSTI)

    Permana, Sidik; Novitrian,; Waris, Abdul [Nuclear Physics and Biophysics Research Division, Physics Department, Institut Teknologi Bandung (Indonesia); Ismail [Center for Technical Assessment of Nuclear Installation and Materials, Indonesian Nuclear Energy Regulatory (Indonesia); Suzuki, Mitsutoshi [Department of Science and Technology for Nuclear Material Management (STNM), Japan Atomic Energy Agency (JAEA) (Japan); Saito, Masaki [Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology (Japan)

    2014-09-30T23:59:59.000Z

    Nuclear fuel breeding based on the capability of fuel conversion capability can be achieved by conversion ratio of some fertile materials into fissile materials during nuclear reaction processes such as main fissile materials of U-233, U-235, Pu-239 and Pu-241 and for fertile materials of Th-232, U-238, and Pu-240 as well as Pu-238. Minor actinide (MA) loading option which consists of neptunium, americium and curium will gives some additional contribution from converted MA into plutonium such as conversion Np-237 into Pu-238 and it's produced Pu-238 converts to Pu-239 via neutron capture. Increasing composition of Pu-238 can be used to produce fissile material of Pu-239 as additional contribution. Trans-uranium (TRU) fuel (Mixed fuel loading of MOX (U-Pu) and MA composition) and mixed oxide (MOX) fuel compositions are analyzed for comparative analysis in order to show the effect of MA to the plutonium productions in core in term of reactor criticality condition and fuel breeding capability. In the present study, neptunium (Np) nuclide is used as a representative of MAin trans-uranium (TRU) fuel composition as Np-MOX fuel type. It was loaded into the core region gives significant contribution to reduce the excess reactivity in comparing to mixed oxide (MOX) fuel and in the same time it contributes to increase nuclear fuel breeding capability of the reactor. Neptunium fuel loading scheme in FBR core region gives significant production of Pu-238 as fertile material to absorp neutrons for reducing excess reactivity and additional contribution for fuel breeding.

  19. Roof-top solar energy potential under performance-based building energy codes: The case of Spain

    SciTech Connect (OSTI)

    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

    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)

  20. Employment of volume-based user fees in rural drop-off collection systems for solid waste: Six case studies

    SciTech Connect (OSTI)

    Park, W.M.

    1995-09-01T23:59:59.000Z

    While volume-based user fees (VBUFs) may not be the most appropriate financing strategy for all rural areas, the experience of these rural counties and towns warrants the following inclusions. Implementation of VBUFs in a rural drop-off context appears feasible across a wide range of geographic and demographic conditions, as well as a wide range of system characteristics, without prohibitive administrative problems or costs. Most residents appear willing to support (or at least accept) VBUFs if they are well-informed of the need and logic in advance, and given reasonable options for gaining some measure of control over their total bill. Hybrid financing strategies allow per bag fees to be kept at modest levels. Support comes more easily if VBUFs are initiated at the time of a significant enhancement of the collection system. VBUFs within rural drop-off collection systems appear capable of motivating relatively high levels of participation in the separation of recyclables, and thus contributing to relatively high per capita generation rates for typical recyclables and county-wide diversion or recovery rates. At least minor problems with increased illegal dumping and burning can be expected, but a show of willingness to enforce ordinances against such practices can lead to fairly quick subsidence.

  1. Analysis and Research on the Thermal Properties of Energy-efficient Building Glass: A Case Study in PVB Laminated Glass

    E-Print Network [OSTI]

    Chen, Z.; Meng, Q.

    2006-01-01T23:59:59.000Z

    , are analyzed. The methods on usage of energy-saving glass are promoted based on the differences of their thermal properties. Meanwhile, a new kind of glass?PVB laminated glass (Fig.1), is introduced. Fl at cl ear gl ass 0. 05mmLOWE coati ng Fl at cl ear g... lass 3 mm( 5 mm) 0. 38mmPVB 3 mm( 5 mm) 0. 38mmPVB Fig. 1 Structure of PVB laminated glass ICEBO2006, Shenzhen, China Envelope Technologies for Building Energy Efficiency, Vol.II-4-5 2. EVALUATION STANDARDS OF SOLAR-OPTICAL PROPERTY The main...

  2. Multi-wavelength analysis of high energy electrons in solar flares: a case study of August 20, 2002 flare

    E-Print Network [OSTI]

    J. Kasparova; M. Karlicky; E. P. Kontar; R. A. Schwartz; B. R. Dennis

    2005-08-30T23:59:59.000Z

    A multi-wavelength spatial and temporal analysis of solar high energy electrons is conducted using the August 20, 2002 flare of an unusually flat (gamma=1.8) hard X-ray spectrum. The flare is studied using RHESSI, Halpha, radio, TRACE, and MDI observations with advanced methods and techniques never previously applied in the solar flare context. A new method to account for X-ray Compton backscattering in the photosphere (photospheric albedo) has been used to deduce the primary X-ray flare spectra. The mean electron flux distribution has been analysed using both forward fitting and model independent inversion methods of spectral analysis. We show that the contribution of the photospheric albedo to the photon spectrum modifies the calculated mean electron flux distribution, mainly at energies below 100 keV. The positions of the Halpha emission and hard X-ray sources with respect to the current-free extrapolation of the MDI photospheric magnetic field and the characteristics of the radio emission provide evidence of the closed geometry of the magnetic field structure and the flare process in low altitude magnetic loops. In agreement with the predictions of some solar flare models, the hard X-ray sources are located on the external edges of the Halpha emission and show chromospheric plasma heated by the non-thermal electrons. The fast changes of Halpha intensities are located not only inside the hard X-ray sources, as expected if they are the signatures of the chromospheric response to the electron bombardment, but also away from them.

  3. Assessment of effectiveness of geologic isolation systems. Test case release consequence analysis for a spent fuel repository in bedded salt

    SciTech Connect (OSTI)

    Raymond, J.R.; Bond, F.W.; Cole, C.R.; Nelson, R.W.; Reisenauer, A.E.; Washburn, J.F.; Norman, N.A.; Mote, P.A.; Segol, G.

    1980-01-01T23:59:59.000Z

    Geologic and geohydrologic data for the Paradox Basin have been used to simulate movement of ground water and radioacrtive contaminants from a hypothetical nuclear reactor spent fuel repository after an assumed accidental release. The pathlines, travel times and velocity of the ground water from the repository to the discharge locale (river) were determined after the disruptive event by use of a two-dimensional finite difference hydrologic model. The concentration of radioactive contaminants in the ground water was calculated along a series of flow tubes by use of a one-dimensional mass transport model which takes into account convection, dispersion, contaminant/media interactions and radioactive decay. For the hypothetical site location and specific parameters used in this demonstration, it is found that Iodine-129 (I-129) is tthe only isotope reaching the Colorado River in significant concentration. This concentration occurs about 8.0 x 10/sup 5/ years after the repository has been breached. This I-129 ground-water concentration is about 0.3 of the drinking water standard for uncontrolled use. The groundwater concentration would then be diluted by the Colorado River. None of the actinide elements reach more than half the distance from the repository to the Colorado River in the two-million year model run time. This exercise demonstrates that the WISAP model system is applicable for analysis of contaminant transport. The results presented in this report, however, are valid only for one particular set of parameters. A complete sensitivity analysis must be performed to evaluate the range of effects from the release of contaminants from a breached repository.

  4. Analysis of the optics of the Final Focus Test Beam using Lie algebra based techniques

    SciTech Connect (OSTI)

    Roy, G.J.

    1992-09-01T23:59:59.000Z

    This report discusses the analysis of the beam optics of the final focus test beam at the Stanford Linear Collider using Lie algebra. (LSP).

  5. Polarization matching design of InGaN-based semi-polar quantum wells—A case study of (112{sup ¯}2) orientation

    SciTech Connect (OSTI)

    Kozlowski, Grzegorz, E-mail: grzegorz.kozlowski@tyndall.ie; Schulz, Stefan; Corbett, Brian [Tyndall National Institute, Lee Maltings, Cork (Ireland)

    2014-02-03T23:59:59.000Z

    We present a theoretical study of the polarization engineering in semi-polar III-nitrides heterostructures. As a case study, we investigate the influence of GaN, AlGaN, and AlInN barrier material on the performance of semi-polar (112{sup ¯}2) InGaN-based quantum wells (QWs) for blue (450?nm) and yellow (560?nm) emission. We show that the magnitude of the total built-in electric field across the QW can be controlled by the barrier material. Our results indicate that AlInN is a promising candidate to achieve (i) reduced wavelength shifts with increasing currents and (ii) strongly increased electron-hole wave function overlap, important for reduced optical recombination times.

  6. High Throughput Sample Preparation and Analysis for DNA Sequencing, PCR and Combinatorial Screening of Catalysis Based on Capillary Array Technique

    SciTech Connect (OSTI)

    Yonghua Zhang

    2002-05-27T23:59:59.000Z

    Sample preparation has been one of the major bottlenecks for many high throughput analyses. The purpose of this research was to develop new sample preparation and integration approach for DNA sequencing, PCR based DNA analysis and combinatorial screening of homogeneous catalysis based on multiplexed capillary electrophoresis with laser induced fluorescence or imaging UV absorption detection. The author first introduced a method to integrate the front-end tasks to DNA capillary-array sequencers. protocols for directly sequencing the plasmids from a single bacterial colony in fused-silica capillaries were developed. After the colony was picked, lysis was accomplished in situ in the plastic sample tube using either a thermocycler or heating block. Upon heating, the plasmids were released while chromsomal DNA and membrane proteins were denatured and precipitated to the bottom of the tube. After adding enzyme and Sanger reagents, the resulting solution was aspirated into the reaction capillaries by a syringe pump, and cycle sequencing was initiated. No deleterious effect upon the reaction efficiency, the on-line purification system, or the capillary electrophoresis separation was observed, even though the crude lysate was used as the template. Multiplexed on-line DNA sequencing data from 8 parallel channels allowed base calling up to 620 bp with an accuracy of 98%. The entire system can be automatically regenerated for repeated operation. For PCR based DNA analysis, they demonstrated that capillary electrophoresis with UV detection can be used for DNA analysis starting from clinical sample without purification. After PCR reaction using cheek cell, blood or HIV-1 gag DNA, the reaction mixtures was injected into the capillary either on-line or off-line by base stacking. The protocol was also applied to capillary array electrophoresis. The use of cheaper detection, and the elimination of purification of DNA sample before or after PCR reaction, will make this approach an attractive alternative to current methods for genetic analysis and disease diagnosis.

  7. Vision-based head pose estimation and interactivity analysis : algorithms, systems and evaluation

    E-Print Network [OSTI]

    Murphy-Chutorian, Erik Marshall

    2009-01-01T23:59:59.000Z

    and lighting changes [103]. In the same comparison, it waslighting caused by sunlight. The SVR-based approaches in comparisonlighting caused by sunlight. The SVR-based approaches in comparison

  8. MATLAB implementation of an operational modal analysis technique for vibration-based structural health monitoring

    E-Print Network [OSTI]

    Ojeda, Alejandro P

    2012-01-01T23:59:59.000Z

    Vibration-based structural health monitoring (SHM) has become an attractive solution for the global monitoring and evaluation of damage in structures. Numerous damage detection schemes used in vibration-based SHM require ...

  9. A computational analysis of the carbon-nanotube-based resonant-circuit sensors

    E-Print Network [OSTI]

    Grujicic, Mica

    laden polymer-matrix conductive composites (e.g. [7]). Semiconducting metallic oxides-based sen- sors sensing applications [10]. Conducting composites-based sensor are generally found to suffer from a limited

  10. Modeling, design and analysis of micro-scale Rankine-based systems

    E-Print Network [OSTI]

    Cui, Ling, 1978-

    2004-01-01T23:59:59.000Z

    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 ...

  11. Comprehensive Equity Analysis of Mileage Based User Fees: Tazation and Expenditures for Roadways and Transit

    E-Print Network [OSTI]

    Carlton, Justin David

    2014-01-07T23:59:59.000Z

    Lack of sustainable revenue generation for transportation infrastructure has created a need for alternative funding sources. The most prominent of which is the Mileage Based User Fee (MBUF), where drivers would be charged based on the number...

  12. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy E.

    1999-01-01T23:59:59.000Z

    based on coal or biomass feedstocks, or a combination ofproduction from biomass feedstocks; and storage of hydrogen

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

    E-Print Network [OSTI]

    Durrani, Yamin Qaisar

    2005-11-01T23:59:59.000Z

    ......................................................... 6 1.3.1 Flyback converter based PFC..................................................... 9 1.3.2 Boost converter based PFC....................................................... 10 1.3.3 Dual boost PFC scheme............................................................... 11 1.4. High frequency operation of PFC...................................................... 12 1.5. SiC based power devices in switching power converters.................. 13 1.6. Research objective...

  14. Evaluation of food waste disposal options by LCC analysis from the perspective of global warming: Jungnang case, South Korea

    SciTech Connect (OSTI)

    Kim, Mi-Hyung, E-mail: mhkim9@snu.ac.kr [Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, San 56-1, Sillim-Dong, Gwanak-Gu, Seoul 151-742 (Korea, Republic of); Song, Yul-Eum, E-mail: yesong0724@dongguk.edu [Department of Philosophy, Dongguk University, Pil-Dong 3-Ga, Jung-Gu, Seoul 100-715 (Korea, Republic of); Department of Life Science, Dongguk University, Pil-Dong 3-Ga, Jung-Gu, Seoul 100-715 (Korea, Republic of); Song, Han-Byul, E-mail: kuackyang@ssu.ac.kr [Department of Chemical Engineering, Soongsil University, Sangdo-Ro 369, Dongjak-Gu, Seoul 156-743 (Korea, Republic of); Kim, Jung-Wk, E-mail: kimjw@snu.ac.kr [Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, San 56-1, Sillim-Dong, Gwanak-Gu, Seoul 151-742 (Korea, Republic of); Hwang, Sun-Jin, E-mail: sjhwang@khu.ac.kr [Department of Environmental Science and Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-Dong, Giheung-Gu, Yongin-Si, Gyeonggi-Do 446-701 (Korea, Republic of)

    2011-09-15T23:59:59.000Z

    Highlights: > Various food waste disposal options were evaluated from the perspective of global warming. > Costs of the options were compared by the methodology of life cycle assessment and life cycle cost analysis. > Carbon price and valuable by-products were used for analyzing environmental credits. > The benefit-cost ratio of wet feeding scenario was the highest. - Abstract: The costs associated with eight food waste disposal options, dry feeding, wet feeding, composting, anaerobic digestion, co-digestion with sewage sludge, food waste disposer, incineration, and landfilling, were evaluated in the perspective of global warming and energy and/or resource recovery. An expanded system boundary was employed to compare by-products. Life cycle cost was analyzed through the entire disposal process, which included discharge, separate collection, transportation, treatment, and final disposal stages, all of which were included in the system boundary. Costs and benefits were estimated by an avoided impact. Environmental benefits of each system per 1 tonne of food waste management were estimated using carbon prices resulting from CO{sub 2} reduction by avoided impact, as well as the prices of by-products such as animal feed, compost, and electricity. We found that the cost of landfilling was the lowest, followed by co-digestion. The benefits of wet feeding systems were the highest and landfilling the lowest.

  15. Life Cycle Management of Steel Bridges Based on NDE and Failure Analysis

    E-Print Network [OSTI]

    INTEGRITY ASSESSMENT OF PIN AND HANGER CONNECTION OF AGING HIGHWAY BRIDGES USING FINITE ELEMENT ANALYSIS CONNECTION OF AGING HIGHWAY BRIDGES USING FINITE ELEMENT ANALYSIS David Houcque The finite element method of the entire structure is dependent on the behavior of cracks. Due to the accessibility of 3D finite element

  16. Text Retrieval from Document Images based on Word Shape Analysis Chew Lim Tan, Weihua Huang, Sam Yuan Sung, Zhaohui Yu and Yi Xu

    E-Print Network [OSTI]

    Tan, Chew Lim

    Text Retrieval from Document Images based on Word Shape Analysis Chew Lim Tan, Weihua Huang, Sam, Singapore 117543 Abstract In this paper, we propose a method of text retrieval from document images using a similarity measure based on word shape analysis. We directly extract image features instead of using optical

  17. Integrating multi-criteria decision analysis for a GIS-based hazardous waste landfill sitting in Kurdistan Province, western Iran

    SciTech Connect (OSTI)

    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

    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.

  18. Pairwise Error Probability Analysis for Power Delay Profile Fingerprinting based Localization

    E-Print Network [OSTI]

    Gesbert, David

    systems. The objective is to see the performance of PDP-F algorithms under different cost functions Ericsson, Thales, Symantec, SAP, Monaco Telecom. The research reported herein was also partially supported by the European FP7 projects WHERE2, CROWN and NEWCOM++. for digital communication channels. In that case the aim

  19. SECURITY ANALYSIS OF A CANCELABLE IRIS RECOGNITION SYSTEM BASED ON BLOCK REMAPPING

    E-Print Network [OSTI]

    Uhl, Andreas

    templates in case of a database breach. In this paper a security survey of a cancelable iris recognition for template protection. Two adjunctive scenarios and their impact on the security of the system are examined. First off it is assumed that an attacker got a hold on a single iris template. In the second scenario

  20. Analysis of a Classification-based Policy Iteration Algorithm Alessandro Lazaric alessandro.lazaric@inria.fr

    E-Print Network [OSTI]

    be solved exactly and approximation techniques are required. In approximate policy iteration (API issues, mainly 3 and 4,1 variants of API have been proposed that replace the usual value function label. In this case, (x, a) for the rest of the actions are labeled negative and added to the training

  1. Case Studies

    Broader source: Energy.gov [DOE]

    The following case studies are examples of integrating renewable energy into Federal new construction and major renovation projects. Additional renewable energy case studies are also available.

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

    E-Print Network [OSTI]

    Mills, Evan

    2009-01-01T23:59:59.000Z

    complete evaluation Available in Cx Meta- Analysis? Baseline8. Total source energy pre-Cx energy use intensity vs.post-Cx savings Figure 9. Total source energy pre-Cx energy

  3. Energy Analysis and Diagnostics: A Computer Based Tool for Industrial Self Assessment

    E-Print Network [OSTI]

    Gopalakrishnan, B.; Plummer, R. W.; Nagarajan, S.; Kolluri, R.

    of recommending ECOs in areas such as boilers, motor selection, analysis of belt driven systems, destratification, insulation of heated surfaces, and air compressor operation. The system has been designed so as to query the industrial user on aspects related...

  4. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy Edward

    1999-01-01T23:59:59.000Z

    the Analysis of High Power Battery Designs, Report for thebe coupled with a peak-power battery power system, in ordersystem and no peak-power battery. FCVs that use hydrogen

  5. Analysis of decentralized potential field based multi-agent navigation via primal-dual Lyapunov theory

    E-Print Network [OSTI]

    Dimarogonas, Dimos V.

    We use a combination of primal and dual Lyapunov theory for almost global asymptotic stabilization and collision avoidance in multi-agent systems. Previous work provided local analysis around the critical points with the ...

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

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2005-01-01T23:59:59.000Z

    cost estimates) Figure 4: Capital and O&M Costs Sensitivity – Separate Refrigeration Load Distributed Energy Resourcescost estimates) Figure 8: Capital and O&M Costs Sensitivity Analysis – Integrated Refrigeration Load Distributed Energy Resources

  7. Machine Design Op.miza.on Based on Finite Element Analysis using

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    on a particular geometry with 12 stator teeth and 10 magnet poles WJ - 7 #12;WEMPEC 5/2/2012 Condor Week 2012 adopted as means of implementing parallel processing of all candidate design analysis within generation

  8. Preprint of the paper "A General Formulation based on the Boundary Element Method for the Analysis

    E-Print Network [OSTI]

    Colominas, Ignasi

    cost) to the analysis of large grounding systems in electrical substations. In this paper we present a new Boundary Element formulation for substation grounding systems embedded in layered soils of the substation site. Obviously, from a technical (and

  9. Specification Risk Analysis: Avoiding Product Performance Deviations through an FMEA-Based Method

    E-Print Network [OSTI]

    Wagner, Claudia

    This thesis investigates the potential application of the Failure Mode and Effect Analysis (FMEA) as a method that facilitates risk management for product architectures. The process described by Pahl & Beitz and the Munich ...

  10. Stochastic performance analysis and staged control system designs for space based interferometers

    E-Print Network [OSTI]

    Liu, Kuo-Chia, 1973-

    2003-01-01T23:59:59.000Z

    Space based interferometry missions have the potential to revolutionize astrometry, providing observations of unprecedented accuracy. Realizing the full potential of these interferometers poses several significant technological ...

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

    SciTech Connect (OSTI)

    Lopez, A.; Roberts, B.; Heimiller, D.; Blair, N.; Porro, G.

    2012-07-01T23:59:59.000Z

    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.

  12. Real Time Pricing as a Default or Optional Service for C&ICustomers: A Comparative Analysis of Eight Case Studies

    SciTech Connect (OSTI)

    Barbose, Galen; Goldman, Charles; Bharvirkar, Ranjit; Hopper,Nicole; Ting, Michael; Neenan, Bernie

    2005-08-01T23:59:59.000Z

    Demand response (DR) has been broadly recognized to be an integral component of well-functioning electricity markets, although currently underdeveloped in most regions. Among the various initiatives undertaken to remedy this deficiency, public utility commissions (PUC) and utilities have considered implementing dynamic pricing tariffs, such as real-time pricing (RTP), and other retail pricing mechanisms that communicate an incentive for electricity consumers to reduce their usage during periods of high generation supply costs or system reliability contingencies. Efforts to introduce DR into retail electricity markets confront a range of basic policy issues. First, a fundamental issue in any market context is how to organize the process for developing and implementing DR mechanisms in a manner that facilitates productive participation by affected stakeholder groups. Second, in regions with retail choice, policymakers and stakeholders face the threshold question of whether it is appropriate for utilities to offer a range of dynamic pricing tariffs and DR programs, or just ''plain vanilla'' default service. Although positions on this issue may be based primarily on principle, two empirical questions may have some bearing--namely, what level of price response can be expected through the competitive retail market, and whether establishing RTP as the default service is likely to result in an appreciable level of DR? Third, if utilities are to have a direct role in developing DR, what types of retail pricing mechanisms are most appropriate and likely to have the desired policy impact (e.g., RTP, other dynamic pricing options, DR programs, or some combination)? Given a decision to develop utility RTP tariffs, three basic implementation issues require attention. First, should it be a default or optional tariff, and for which customer classes? Second, what types of tariff design is most appropriate, given prevailing policy objectives, wholesale market structure, ratemaking practices and standards, and customer preferences? Third, if a primary goal for RTP implementation is to induce DR, what types of supplemental activities are warranted to support customer participation and price response (e.g., interval metering deployment, customer education, and technical assistance)?

  13. Analysis of ancient-river systems by 3D seismic time-slice technique: A case study in northeast Malay Basin, offshore Terengganu, Malaysia

    SciTech Connect (OSTI)

    Sulaiman, Noorzamzarina; Hamzah, Umar; Samsudin, Abdul Rahim [Geology Programme, School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia)

    2014-09-03T23:59:59.000Z

    Fluvial sandstones constitute one of the major clastic petroleum reservoir types in many sedimentary basins around the world. This study is based on the analysis of high-resolution, shallow (seabed to 500 m depth) 3D seismic data which generated three-dimensional (3D) time slices that provide exceptional imaging of the geometry, dimension and temporal and spatial distribution of fluvial channels. The study area is in the northeast of Malay Basin about 280 km to the east of Terengganu offshore. The Malay Basin comprises a thick (> 8 km), rift to post-rift Oligo-Miocene to Pliocene basin-fill. The youngest (Miocene to Pliocene), post-rift succession is dominated by a thick (1–5 km), cyclic succession of coastal plain and coastal deposits, which accumulated in a humid-tropical climatic setting. This study focuses on the Pleistocene to Recent (500 m thick) succession, which comprises a range of seismic facies analysis of the two-dimensional (2D) seismic sections, mainly reflecting changes in fluvial channel style and river architecture. The succession has been divided into four seismic units (Unit S1-S4), bounded by basin-wide strata surfaces. Two types of boundaries have been identified: 1) a boundary that is defined by a regionally-extensive erosion surface at the base of a prominent incised valley (S3 and S4); 2) a sequence boundary that is defined by more weakly-incised, straight and low-sinuosity channels which is interpreted as low-stand alluvial bypass channel systems (S1 and S2). Each unit displays a predictable vertical change of the channel pattern and scale, with wide low-sinuosity channels at the base passing gradationally upwards into narrow high-sinuosity channels at the top. The wide variation in channel style and size is interpreted to be controlled mainly by the sea-level fluctuations on the widely flat Sunda land Platform.

  14. Materials Science and Engineering B 117 (2005) 5361 Finite element analysis-based design of a fluid-flow control nano-valve

    E-Print Network [OSTI]

    Grujicic, Mica

    2005-01-01T23:59:59.000Z

    Materials Science and Engineering B 117 (2005) 53­61 Finite element analysis-based design A finite element method-based procedure is developed for the design of molecularly functionalized nano of a fluid-flow control nano-valve. The results obtained suggest that the finite element-based procedure

  15. Security analysis of boolean algebra based on Zhang-Wang digital signature scheme

    SciTech Connect (OSTI)

    Zheng, Jinbin, E-mail: jbzheng518@163.com [School of Mathematics and Computer Science, Long Yan University, Longyan 364012 (China)

    2014-10-06T23:59:59.000Z

    In 2005, Zhang and Wang proposed an improvement signature scheme without using one-way hash function and message redundancy. In this paper, we show that this scheme exits potential safety concerns through the analysis of boolean algebra, such as bitwise exclusive-or, and point out that mapping is not one to one between assembly instructions and machine code actually by means of the analysis of the result of the assembly program segment, and which possibly causes safety problems unknown to the software.

  16. Device-level thermal analysis of GaN-based electronics

    E-Print Network [OSTI]

    Bagnall, Kevin Robert

    2013-01-01T23:59:59.000Z

    Gallium nitride (GaN)-based microelectronics are one of the most exciting semiconductor technologies for high power density and high frequency electronics. The excellent electrical properties of GaN and its related alloys ...

  17. Using Paper-Based Diagnostics with High School Students To Model Forensic Investigation and Colorimetric Analysis

    E-Print Network [OSTI]

    -based diagnostics is an inexpensive yet elegant approach to medical diagnostics and environmental testing paper for medical diagnostics (low expense, availability, portability, easy disposal) also apply, Public Understanding/Outreach, Student-Centered Learning, Ethics Recent advances in the development

  18. Analysis of Microprocessor Based Protective Re-lay's (MBPR) Differential Equation Algorithms

    E-Print Network [OSTI]

    Osorno, Bruno

    2010-01-01T23:59:59.000Z

    This paper analyses and explains from the systems point of view, microprocessor based protective relay (MBPR) systems with emphasis on differential equation algorithms. Presently, the application of protective relaying in power systems, using MBPR systems, based on the differential equation algorithm is valued more than the protection relaying based on any other type of algorithm, because of advantages in accuracy and implementation. MBPR differential equation approach can tolerate some errors caused by power system abnormality such as DC offset. This paper shows that the algorithm is a system description based and it is immune from distortions such as DC-offset. Differential equation algorithms implemented in MBPR are widely used in the protection of transmission and distribution lines, transformers, buses, motors, etc. The parameters from the system, utilized in these algorithms, are obtained from the power system current i(t) or voltage v(t), which are abnormal values under fault or distortion situations. ...

  19. Performance Analysis of an EEMD-based Hilbert Huang Transform as a Bearing Failure Detector

    E-Print Network [OSTI]

    Brest, Université de

    detection through wind turbines generator stator current. The proposed technique is based on a modified, to identify the failed element of the system and to find the failure causes via the processing of available

  20. Hurricane risk analysis: A review on the physically-based approach

    E-Print Network [OSTI]

    Lin, Ning

    This paper reviews recent studies that take a physically-based approach to better assess and manage hurricane risk. Such a methodology includes three components: modeling the storm climatology (which defines TC risk in ...