National Library of Energy BETA

Sample records for base case scenario

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

    SciTech Connect (OSTI)

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

    2009-12-03

    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.

  2. Optimization Online - The Worst-case Wind Power Scenario for ...

    E-Print Network [OSTI]

    German Morales-España

    2014-09-16

    Sep 16, 2014 ... The Worst-case Wind Power Scenario for Adaptive Robust Unit Commitment Problems. German Morales-España(gmorales ***at*** kth.se).

  3. Monitoring and Control in Scenario-Based Requirements Analysis

    E-Print Network [OSTI]

    Bae, Doo-Hwan

    scenarios are detected #12;9 / 19 Implied Scenarios (3/3) Example Boiler Control System Implied Scenario of Boiler Control System Control pressure #12;10 / 19 Input-Output Implied Scenarios (1/4) Ability

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

    SciTech Connect (OSTI)

    Melendez, M.

    2007-05-17

    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.

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

    SciTech Connect (OSTI)

    Abercrombie, Robert K; Schlicher, Bob G; Sheldon, Frederick T

    2014-01-01

    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.

  6. Systematic Scenario-Based Analysis of UML Design Class models Lijun Yu, Robert B. France, Indrakshi Ray, Wuliang Sun

    E-Print Network [OSTI]

    Ray, Indrakshi

    Systematic Scenario-Based Analysis of UML Design Class models Lijun Yu, Robert B. France, Indrakshi, sunwl}@cs.colostate.edu Abstract Scenario-based UML Design Analysis (SUDA) is a lightweight technique the Scenario-based UML Design Analysis (SUDA) technique [Yu08] [Yu07]. SUDA can be used to rigorously analyze

  7. Base isolation case study

    E-Print Network [OSTI]

    Ching, Kenneth A. (Kenneth Apostol)

    2008-01-01

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

  8. THE SCENARIOS APPROACH TO ATTENUATION-BASED REMEDIES FOR INORGANIC AND RADIONUCLIDE CONTAMINANTS

    SciTech Connect (OSTI)

    Vangelas, K.; Rysz, M.; Truex, M.; Brady, P.; Newell, C.; Denham, M.

    2011-08-04

    Guidance materials based on use of conceptual model scenarios were developed to assist evaluation and implementation of attenuation-based remedies for groundwater and vadose zones contaminated with inorganic and radionuclide contaminants. The Scenarios approach is intended to complement the comprehensive information provided in the US EPA's Technical Protocol for Monitored Natural Attenuation (MNA) of Inorganic Contaminants by providing additional information on site conceptual models and extending the evaluation to consideration of Enhanced Attenuation approaches. The conceptual models incorporate the notion of reactive facies, defined as units with hydrogeochemical properties that are different from surrounding units and that react with contaminants in distinct ways. The conceptual models also incorporate consideration of biogeochemical gradients, defined as boundaries between different geochemical conditions that have been induced by waste disposal or other natural phenomena. Gradients can change over time when geochemical conditions from one area migrate into another, potentially affecting contaminant mobility. A recognition of gradients allows the attenuation-affecting conditions of a site to be projected into the future. The Scenarios approach provides a stepwise process to identify an appropriate category of conceptual model and refine it for a specific site. Scenario materials provide links to pertinent sections in the EPA technical protocol and present information about contaminant mobility and important controlling mechanism for attenuation-based remedies based on the categories of conceptual models.

  9. Evaluation of Potential Impacts on Great Lakes Water Resources Based on Climate Scenarios of Two GCMs

    E-Print Network [OSTI]

    Evaluation of Potential Impacts on Great Lakes Water Resources Based on Climate Scenarios of Two Mete- orological Office's Hadley Centre (model HadCM2) have been used to derive potential impacts in the satisfaction of the interests of commercial navigation, recreational boating, riparians, and hydropower due

  10. Scenario-Based Fault-Tolerant Model Predictive Control for Diesel-Electric Marine Power Plant

    E-Print Network [OSTI]

    Johansen, Tor Arne

    Scenario-Based Fault-Tolerant Model Predictive Control for Diesel-Electric Marine Power Plant Email: torstein.bo@itk.ntnu.no, tor.arne.johansen@itk.ntnu.no Abstract--Diesel-electric propulsion generation control, Ma- rine safety, Optimal control. I. INTRODUCTION Diesel electric propulsion is a system

  11. Racial minorities' reactions to race-based affirmative action in a simulated selection scenario

    E-Print Network [OSTI]

    Stanush, Pamela Lee

    1995-01-01

    The present study investigated the affective responses of racial minorities. In a scenario-based study, African-American (N=196) and Hispanic (N=169) subjects role-played a college student (of the same sex and race as the subject) competing...

  12. 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)

    1995-06-01

    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.

  13. Preliminary Safety Analysis of the Gorleben Site: Safety Concept and Application to Scenario Development Based on a Site-Specific Features, Events and Processes (FEP) Database - 13304

    SciTech Connect (OSTI)

    Moenig, Joerg; Beuth, Thomas; Wolf, Jens [Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) mbH, Theodor-Heuss-Str. 4, D-38122 Braunschweig (Germany)] [Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) mbH, Theodor-Heuss-Str. 4, D-38122 Braunschweig (Germany); Lommerzheim, Andre [DBE TECHNOLOGY GmbH, Eschenstr. 55, D-31224 Peine (Germany)] [DBE TECHNOLOGY GmbH, Eschenstr. 55, D-31224 Peine (Germany); Mrugalla, Sabine [Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, D-30655 Hannover (Germany)] [Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, D-30655 Hannover (Germany)

    2013-07-01

    Based upon the German safety criteria, released in 2010 by the Federal Ministry of the Environment (BMU), a safety concept and a safety assessment concept for the disposal of heat-generating high-level waste have both been developed in the framework of the preliminary safety case for the Gorleben site (Project VSG). The main objective of the disposal is to contain the radioactive waste inside a defined rock zone, which is called containment-providing rock zone. The radionuclides shall remain essentially at the emplacement site, and at the most, a small defined quantity of material shall be able to leave this rock zone. This shall be accomplished by the geological barrier and a technical barrier system, which is required to seal the inevitable penetration of the geological barrier by the construction of the mine. The safe containment has to be demonstrated for probable and less probable evolutions of the site, while evolutions with very low probability (less than 1 % over the demonstration period of 1 million years) need not to be considered. Owing to the uncertainty in predicting the real evolution of the site, plausible scenarios have been derived in a systematic manner. Therefore, a comprehensive site-specific features, events and processes (FEP) data base for the Gorleben site has been developed. The safety concept was directly taken into account, e.g. by identification of FEP with direct influence on the barriers that provide the containment. No effort was spared to identify the interactions of the FEP, their probabilities of occurrence, and their characteristics (values). The information stored in the data base provided the basis for the development of scenarios. The scenario development methodology is based on FEP related to an impairment of the functionality of a subset of barriers, called initial barriers. By taking these FEP into account in their probable characteristics the reference scenario is derived. Thus, the reference scenario describes a comprehensive set of probable future evolutions of the repository site. By stepwise consideration of less probable FEP or less probable characteristics of FEP within this process, alternative scenarios are also developed, which are characterized by a lower probability of occurrence. An important methodological aspect is that some assumptions had to be made for the scenario development. They allow, on the one hand, to deal systematically with incomplete knowledge regarding the geological situation below ground owing to restricted site investigations, and, on the other hand, to structure the scenario development process. The consideration of alternative assumptions may result in additional alternative scenarios. (authors)

  14. Alternative Geothermal Power Production Scenarios

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

    Sullivan, John

    The information given in this file pertains to Argonne LCAs of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the scenarios and cases. The types of plants evaluated are hydrothermal binary and flash and Enhanced Geothermal Systems (EGS) binary and flash plants. Each scenario pair was developed by the LCOE group using GETEM as a way to identify plant operational and resource combinations that could reduce geothermal power plant LCOE values. Based on the specified plant and well field characteristics (plant type, capacity, capacity factor and lifetime, and well numbers and depths) for each case of each pair, Argonne generated a corresponding set of material to power ratios (MPRs) and greenhouse gas and fossil energy ratios.

  15. Alternative Geothermal Power Production Scenarios

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

    Sullivan, John

    2014-03-14

    The information given in this file pertains to Argonne LCAs of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the scenarios and cases. The types of plants evaluated are hydrothermal binary and flash and Enhanced Geothermal Systems (EGS) binary and flash plants. Each scenario pair was developed by the LCOE group using GETEM as a way to identify plant operational and resource combinations that could reduce geothermal power plant LCOE values. Based on the specified plant and well field characteristics (plant type, capacity, capacity factor and lifetime, and well numbers and depths) for each case of each pair, Argonne generated a corresponding set of material to power ratios (MPRs) and greenhouse gas and fossil energy ratios.

  16. IUCBRF Lesson: Case Base Maintenance Policies

    E-Print Network [OSTI]

    Indiana University

    by Steven Bogaerts & David Leake. This material may be distributed only subject to the terms and conditions long-term use, maintenance becomes an important concern. Conse- quently, maintenance has received of case use in larger case bases. More precisely, define case age as the number of episodes a CBR system

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

    SciTech Connect (OSTI)

    Brent Dixon

    2012-09-01

    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.

  18. A Scenario-Based Mobile Application for Robot-Assisted Smart Digital Homes

    E-Print Network [OSTI]

    Manashty, Ali Reza; Jahromi, Zahra Forootan

    2010-01-01

    Smart homes are becoming more popular, as every day a new home appliance can be digitally controlled. Smart Digital Homes are using a server to make interaction with all the possible devices in one place, on a computer or webpage. In this paper we designed and implemented a mobile application using Windows Mobile platform that can connect to the controlling server of a Smart Home and grants the access to the Smart Home devices and robots everywhere possible. UML diagrams are presented to illustrate the application design process. Robots are also considered as devices that are able to interact to other object and devices. Scenarios are defined as a set of sequential actions to help manage different tasks all in one place. The mobile application can connect to the server using GPRS mobile internet and Short Message System (SMS). Interactive home map is also designed for easier status-checking and interacting with the devices using the mobile phones.

  19. PERSPECTIVES Scenarios &

    E-Print Network [OSTI]

    on alternative energy scenarios and strategies aimed at a clean, clever and competitive energy future" #122 0 0 6 ENERGY TECHNOLOGY PERSPECTIVES Scenarios & Strategies to 2050 Energy Technology/speech/2006/ramsay/etp_tokyo.pdf #12;INTERNATIONAL ENERGY AGENCY AGENCE INTERNATIONALE DE L'ENERGIE G8

  20. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy Edward

    1999-01-01

    based on coal or biomass feedstocks, or a combination ofproduction from biomass feedstocks; and storage of hydrogen

  1. Case-based Teaching Discovery Questions

    E-Print Network [OSTI]

    Campbell, A. Malcolm

    Goals Case-based Teaching Discovery Questions Teaching Chips Assessment Web Tools 1 Biology & 2.bio.davidson.edu/people/macampbell/ASCB/2002.html www.aw.com/genomics www.bio.davidson.edu/courses/genomics/studentpages.html www.bio.davidson.edu/courses/genomics/Exams/exams.html www.bio.davidson.edu/projects/GCAT/MAGICTool.html www.bio.davidson.edu/projects/GCAT/teachingchip.html

  2. Implications of Model Configurations on Capacity Planning Decisions: Scenario Case Studies of the Western Interconnection and Colorado Region using the Resource Planning Model

    Broader source: Energy.gov [DOE]

    In this report, we analyze the impacts of model configuration and detail in capacity expansion models, computational tools used by utility planners looking to find the least cost option for planning the system and by researchers or policy makers attempting to understand the effects of various policy implementations. The present analysis focuses on the importance of model configurationsparticularly those related to capacity credit, dispatch modeling, and transmission modelingto the construction of scenario futures. Our analysis is primarily directed toward advanced tools used for utility planning and is focused on those impacts that are most relevant to decisions with respect to future renewable capacity deployment. To serve this purpose, we develop and employ the NREL Resource Planning Model to conduct a case study analysis that explores 12 separate capacity expansion scenarios of the Western Interconnection through 2030.

  3. 1980 Base case and feasibility analysis

    SciTech Connect (OSTI)

    1993-03-01

    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.

  4. 1980 Base case and feasibility analysis

    SciTech Connect (OSTI)

    Not Available

    1993-03-01

    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.

  5. 20th International Conference on Case Based Reasoning | GE Global...

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

    Cheetham on "Case-Based Reasoning for Turbine Trip Diagnostics". ICCBR was hosted in Lyon, France September 3-6, 2012. Case-Based Reasoning (CBR) is a lazy learning algorithm...

  6. Implications of Model Structure and Detail for Utility Planning. Scenario Case Studies using the Resource Planning Model

    SciTech Connect (OSTI)

    Mai, Trieu; Barrows, Clayton; Lopez, Anthony; Hale, Elaine; Dyson, Mark; Eurek, Kelly

    2015-04-23

    We examine how model investment decisions change under different model configurations and assumptions related to renewable capacity credit, the inclusion or exclusion of operating reserves, dispatch period sampling, transmission power flow modeling, renewable spur line costs, and the ability of a planning region to import and export power. For all modeled scenarios, we find that under market conditions where new renewable deployment is predominantly driven by renewable portfolio standards, model representations of wind and solar capacity credit and interactions between balancing areas are most influential in avoiding model investments in excess thermal capacity. We also compare computation time between configurations to evaluate tradeoffs between computational burden and model accuracy. From this analysis, we find that certain advanced dispatch representations (e.g., DC optimal power flow) can have dramatic adverse effects on computation time but can be largely inconsequential to model investment outcomes, at least at the renewable penetration levels modeled. Finally, we find that certain underappreciated aspects of new capacity investment decisions and model representations thereof, such as spur lines for new renewable capacity, can influence model outcomes particularly in the renewable technology and location chosen by the model. Though this analysis is not comprehensive and results are specific to the model region, input assumptions, and optimization-modeling framework employed, the findings are intended to provide a guide for model improvement opportunities.

  7. Risk-based decision making for staggered bioterrorist attacks : resource allocation and risk reduction in "reload" scenarios.

    SciTech Connect (OSTI)

    Lemaster, Michelle Nicole; Gay, David M. (Sandia National Laboratories, Albuquerque, NM); Ehlen, Mark Andrew (Sandia National Laboratories, Albuquerque, NM); Boggs, Paul T.; Ray, Jaideep

    2009-10-01

    Staggered bioterrorist attacks with aerosolized pathogens on population centers present a formidable challenge to resource allocation and response planning. The response and planning will commence immediately after the detection of the first attack and with no or little information of the second attack. In this report, we outline a method by which resource allocation may be performed. It involves probabilistic reconstruction of the bioterrorist attack from partial observations of the outbreak, followed by an optimization-under-uncertainty approach to perform resource allocations. We consider both single-site and time-staggered multi-site attacks (i.e., a reload scenario) under conditions when resources (personnel and equipment which are difficult to gather and transport) are insufficient. Both communicable (plague) and non-communicable diseases (anthrax) are addressed, and we also consider cases when the data, the time-series of people reporting with symptoms, are confounded with a reporting delay. We demonstrate how our approach develops allocations profiles that have the potential to reduce the probability of an extremely adverse outcome in exchange for a more certain, but less adverse outcome. We explore the effect of placing limits on daily allocations. Further, since our method is data-driven, the resource allocation progressively improves as more data becomes available.

  8. Risk Analysis DOI: 10.1111/j.1539-6924.2012.01837.x Context-Specific, Scenario-Based Risk Scales

    E-Print Network [OSTI]

    Spirtes, Peter

    Risk Analysis DOI: 10.1111/j.1539-6924.2012.01837.x Context-Specific, Scenario-Based Risk Scales. Given the stressful conditions 1 0272-4332/12/0100-0001$22.00/1 C 2012 Society for Risk Analysis #12

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

    E-Print Network [OSTI]

    Zhang, Ji

    2012-10-19

    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...

  10. CASE/CM Services Supporting InternetBased Software Engineering

    E-Print Network [OSTI]

    Biuk-Aghai, Robert P.

    CASE/CM Services Supporting InternetBased Software Engineering Robert P. BiukAghai Faculty of geographically dis tributed software engineers cooperating and com municating over the Internet. In the future of Internetbased ComputerAided Software Engineering (CASE) and Configuration Manage ment (CM) environments

  11. Scenarios for the Hanford Immobilized Low-Activity Waste (ILAW) performance assessment

    SciTech Connect (OSTI)

    MANN, F.M.

    1999-03-17

    Scenarios describing representative exposure cases associated with the disposal of low activity waste from the Hanford Waste Tanks have been defined. These scenarios are based on guidance from the Department of Energy, the U.S. Nuclear Regulatory Commission, and previous Hanford waste disposal performance assessments.

  12. A Simplified Residential Base-Case Model

    E-Print Network [OSTI]

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

    2013-01-01

    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 ...

  13. Transport Test Problems for Radiation Detection Scenarios

    SciTech Connect (OSTI)

    Shaver, Mark W.; Miller, Erin A.; Wittman, Richard S.; McDonald, Benjamin S.

    2012-09-30

    This is the final report and deliverable for the project. It is a list of the details of the test cases for radiation detection scenarios.

  14. Misrepresentation of the IPCC CO2 emission scenarios

    SciTech Connect (OSTI)

    Manning, Martin; Edmonds, James A.; Emori, S.; Grubler, Arnulf; Hibbard, Kathleen A.; Joos, Fortunat; Kainuma, M.; Keeling, Ralph; Kram, Tom; Manning, Andrew; Meinhausen, Malte; Moss, Richard H.; Nakicenovic, Nebojsa; Riahi, Keywan; Rose, Steven K.; Smith, Steven J.; Swart, Robert; Van Vuuren, Detlef

    2010-06-01

    Estimates of recent fossil fuel CO2 emissions have been compared with the IPCC SRES (Special Report on Emission Scenarios) emission scenarios that had been developed for analysis of future climate change, impacts and mitigation. In some cases this comparison uses averages across subgroups of SRES scenarios and for one category of greenhouse gases (industrial sources of CO2). That approach can be misleading and cause confusion as it is inconsistent with many of the papers on future climate change projections that are based on a specific subset of closely scrutinized SRES scenarios, known as illustrative marker scenarios. Here, we show that comparison between recent estimates of fossil fuel emissions trends and the SRES illustrative marker scenarios leads to the conclusion that recent trends are not outside the SRES range. Furthermore, the recent economic downturn appears to have brought actual emission back toward the middle of the SRES illustrative marker scenarios. We also note that SRES emission scenarios are designed to reflect potential alternative long-term trends in a world without climate policy intervention and the trend in the resulting climate change is not sensitive to short-term fluctuations.

  15. Business Case for CNG in Municipal Fleets (Presentation)

    SciTech Connect (OSTI)

    Johnson, C.

    2010-07-27

    Presentation about compressed natural gas in municipal fleets, assessing investment profitability, the VICE model, base-case scenarios, and pressing questions for fleet owners.

  16. Biomass Scenario Model Scenario Library: Definitions, Construction...

    Office of Scientific and Technical Information (OSTI)

    S. 09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; 29 ENERGY PLANNING, POLICY AND ECONOMY BIOMASS; BIOFUEL; BSM; SYSTEM DYNAMICS; BIOFUEL INCENTIVES; SCENARIOS; Bioenergy;...

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

    E-Print Network [OSTI]

    Aamodt, Agnar

    1 Improved Efficiency of Oil Well Drilling through Case Based Reasoning Paal Skalle Norwegian drilling, has been developed in cooperation with an oil company. From several reoccurring problems during oil well drilling the problem of "lost circulation", i.e. loss of circulating drilling fluid

  18. Qualitative vs. Quantitative Plan Diversity in Case-Based Planning

    E-Print Network [OSTI]

    Muñoz-Avila, Héctor

    Qualitative vs. Quantitative Plan Diversity in Case-Based Planning Alexandra Coman, Héctor Muñoz 18015 {alc308, hem4}@lehigh.edu Abstract. Plan diversity has practical value in multiple planning domains, including travel planning, military planning and game planning. Existing methods for obtaining

  19. Generating Test Cases for XML-based Web Component

    E-Print Network [OSTI]

    Offutt, Jeff

    1 Generating Test Cases for XML-based Web Component Interactions Using Mutation Analysis Suet Chun Offutt George Mason University Fairfax, VA USA www.ise.gmu.edu/faculty/ofut/ Lee & Offutt 2 Client WebMulti--tiered Web Softwaretiered Web Software SystemsSystems #12;2 Lee & Offutt 3 Composite Multilateral Web

  20. Operational Support in Fish Farming through Case-based Reasoning

    E-Print Network [OSTI]

    Aamodt, Agnar

    Operational Support in Fish Farming through Case-based Reasoning Axel Tidemann1 , Finn Olav.tidemann@gmail.com, finnolav.bjornson@sintef.no, agnar@idi.ntnu.no Abstract. Farmed fish is the third biggest export in Norway (around NOK 30 billion/e3.82 billion/US$ 5.44 billion in 2010), and large fish farms have biomass worth

  1. Safety evaluation of MHTGR licensing basis accident scenarios

    SciTech Connect (OSTI)

    Kroeger, P.G.

    1989-04-01

    The safety potential of the Modular High-Temperature Gas Reactor (MHTGR) was evaluated, based on the Preliminary Safety Information Document (PSID), as submitted by the US Department of Energy to the US Nuclear Regulatory Commission. The relevant reactor safety codes were extended for this purpose and applied to this new reactor concept, searching primarily for potential accident scenarios that might lead to fuel failures due to excessive core temperatures and/or to vessel damage, due to excessive vessel temperatures. The design basis accident scenario leading to the highest vessel temperatures is the depressurized core heatup scenario without any forced cooling and with decay heat rejection to the passive Reactor Cavity Cooling System (RCCS). This scenario was evaluated, including numerous parametric variations of input parameters, like material properties and decay heat. It was found that significant safety margins exist, but that high confidence levels in the core effective thermal conductivity, the reactor vessel and RCCS thermal emissivities and the decay heat function are required to maintain this safety margin. Severe accident extensions of this depressurized core heatup scenario included the cases of complete RCCS failure, cases of massive air ingress, core heatup without scram and cases of degraded RCCS performance due to absorbing gases in the reactor cavity. Except for no-scram scenarios extending beyond 100 hr, the fuel never reached the limiting temperature of 1600/degree/C, below which measurable fuel failures are not expected. In some of the scenarios, excessive vessel and concrete temperatures could lead to investment losses but are not expected to lead to any source term beyond that from the circulating inventory. 19 refs., 56 figs., 11 tabs.

  2. ILC Operating Scenarios

    E-Print Network [OSTI]

    T. Barklow; J. Brau; K. Fujii; J. Gao; J. List; N. Walker; K. Yokoya

    2015-06-25

    The ILC Technical Design Report documents the design for the construction of a linear collider which can be operated at energies up to 500 GeV. This report summarizes the outcome of a study of possible running scenarios, including a realistic estimate of the real time accumulation of integrated luminosity based on ramp-up and upgrade processes. The evolution of the physics outcomes is emphasized, including running initially at 500 GeV, then at 350 GeV and 250 GeV. The running scenarios have been chosen to optimize the Higgs precision measurements and top physics while searching for evidence for signals beyond the standard model, including dark matter. In addition to the certain precision physics on the Higgs and top that is the main focus of this study, there are scientific motivations that indicate the possibility for discoveries of new particles in the upcoming operations of the LHC or the early operation of the ILC. Follow-up studies of such discoveries could alter the plan for the centre-of-mass collision energy of the ILC and expand the scientific impact of the ILC physics program. It is envisioned that a decision on a possible energy upgrade would be taken near the end of the twenty year period considered in this report.

  3. An overview of alternative fossil fuel price and carbon regulation scenarios

    SciTech Connect (OSTI)

    Wiser, Ryan; Bolinger, Mark

    2004-10-01

    The benefits of the Department of Energy's research and development (R&D) efforts have historically been estimated under business-as-usual market and policy conditions. In recognition of the insurance value of R&D, however, the Office of Energy Efficiency and Renewable Energy (EERE) and the Office of Fossil Energy (FE) have been exploring options for evaluating the benefits of their R&D programs under an array of alternative futures. More specifically, an FE-EERE Scenarios Working Group (the Working Group) has proposed to EERE and FE staff the application of an initial set of three scenarios for use in the Working Group's upcoming analyses: (1) a Reference Case Scenario, (2) a High Fuel Price Scenario, which includes heightened natural gas and oil prices, and (3) a Carbon Cap-and-Trade Scenario. The immediate goal is to use these scenarios to conduct a pilot analysis of the benefits of EERE and FE R&D efforts. In this report, the two alternative scenarios being considered by EERE and FE staff--carbon cap-and-trade and high fuel prices--are compared to other scenarios used by energy analysts and utility planners. The report also briefly evaluates the past accuracy of fossil fuel price forecasts. We find that the natural gas prices through 2025 proposed in the FE-EERE Scenarios Working Group's High Fuel Price Scenario appear to be reasonable based on current natural gas prices and other externally generated gas price forecasts and scenarios. If anything, an even more extreme gas price scenario might be considered. The price escalation from 2025 to 2050 within the proposed High Fuel Price Scenario is harder to evaluate, primarily because few existing forecasts or scenarios extend beyond 2025, but, at first blush, it also appears reasonable. Similarly, we find that the oil prices originally proposed by the Working Group in the High Fuel Price Scenario appear to be reasonable, if not conservative, based on: (1) the current forward market for oil, (2) current oil prices, (3) externally generated oil price forecasts, and (4) the historical difficulty in accurately forecasting oil prices. Overall, a spread between the FE-EERE High Oil Price and Reference scenarios of well over $8/bbl is supported by the literature. We conclude that a wide range of carbon regulation scenarios are possible, especially within the time frame considered by EERE and FE (through 2050). The Working Group's Carbon Cap-and-Trade Scenario is found to be less aggressive than many Kyoto-style targets that have been analyzed, and similar in magnitude to the proposed Climate Stewardship Act. The proposed scenario is more aggressive than some other scenarios found in the literature, however, and ignores carbon banking and offsets and does not allow nuclear power to expand. We are therefore somewhat concerned that the stringency of the proposed carbon regulation scenario in the 2010 to 2025 period will lead to a particularly high estimated cost of carbon reduction. As described in more detail later, we encourage some flexibility in the Working Group's ultimate implementation of the Carbon Cap-and-Trade Scenario. We conclude by identifying additional scenarios that might be considered in future analyses, describing a concern with the proposed specification of the High Fuel Price Scenario, and highlighting the possible difficulty of implementing extreme scenarios with current energy modeling tools.

  4. A Minimal Inflation Scenario

    E-Print Network [OSTI]

    Luis Alvarez-Gaume; Cesar Gomez; Raul Jimenez

    2011-10-18

    We elaborate on a minimal inflation scenario based entirely on the general properties of supersymmetry breaking in supergravity models. We identify the inflaton as the scalar component of the Goldstino superfield. We write plausible candidates for the effective action describing this chiral superfield. In particular the theory depends (apart from parameters of O(1)) on a single free parameter: the scale of supersymmetry breaking. This can be fixed using the amplitude of CMB cosmological perturbations and we therefore obtain the scale of supersymmetry breaking to be 10^{12-14} GeV. The model also incorporates explicit R-symmetry breaking in order to satisfy the slow roll conditions. In our model the eta-problem is solved without extra fine-tuning. We try to obtain as much information as possible in a model independent way using general symmetry properties of the theory's effective action, this leads to a new proposal on how to exit the inflationary phase and reheat the Universe.

  5. Sensitivity and Scenario Results

    E-Print Network [OSTI]

    Yu, Winston

    Presents the results of various scenarios using models used to study water, climate, agriculture and the economy in Pakistan's Indus Basin, and discusses the policy and investment implications. The water allocations per ...

  6. Biomass Scenario Model

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

    bio-oil techno- economic analyses o Aviation biofuels and the European Union emissions trading system (ETS) o Light-duty-vehicle (LDV) ethanol-demand scenario analysis o Long...

  7. Smoldering - The Fire Scenario

    E-Print Network [OSTI]

    Torero, Jose L

    2000-01-01

    There are certain fire initiation scenarios that are particularly common, one of great significance is a fire initiated from the ignition of a porous fuel. Nearly 40% of the deaths due to fire can be traced to cigarette induced ...

  8. Entanglement cost in practical scenarios

    E-Print Network [OSTI]

    Francesco Buscemi; Nilanjana Datta

    2011-03-03

    We quantify the one-shot entanglement cost of an arbitrary bipartite state, that is the minimum number of singlets needed by two distant parties to create a single copy of the state up to a finite accuracy, using local operations and classical communication only. This analysis, in contrast to the traditional one, pertains to scenarios of practical relevance, in which resources are finite and transformations can only be achieved approximately. Moreover, it unveils a fundamental relation between two well-known entanglement measures, namely, the Schmidt number and the entanglement of formation. Using this relation, we are able to recover the usual expression of the entanglement cost as a special case.

  9. Learning from cases : retrieving cases in CAD systems based on design criteria

    E-Print Network [OSTI]

    Shih, Jau-Yung

    1991-01-01

    Architects usually regard case studies as an important way to study architecture. Cases stand for existing answers to real problems and provide resources for free interpretation. This thesis investigates encoding design ...

  10. Emergent scenario and different anisotropic models

    E-Print Network [OSTI]

    Sudeshna Mukerji; Nairwita Mazumder; Ritabrata Biswas; Subenoy Chakraborty

    2011-06-09

    In this work, Emergent Universe scenario has been developed in general homogeneous anisotropic model and for the inhomogeneus LTB model. In the first case, it is assumed that the matter in the universe has two components - one is perfect fluid with barotropic equation of state $p=\\omega\\rho$ ($\\omega$, a constant) and the other component is a real or phantom (or tachyonic) scalar field. In the second case, the universe is only filled with a perfect fluid and possibilities for the existence of emergent scenario has been examined.

  11. Future waste treatment and energy systems examples of joint scenarios

    SciTech Connect (OSTI)

    Mnster, M., E-mail: maem@dtu.dk [System Analysis Division, DTU Management Engineering, Technical University of Denmark, Frederiksborgvej 399, 4000 Roskilde (Denmark); Finnveden, G. [KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Planning and Environment, Division of Environmental Strategies Research fms, 100 44 Stockholm (Sweden); Wenzel, H. [Institute of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Niels Bohrs All 1, 5230 Odense M (Denmark)

    2013-11-15

    Highlights: Approach for use of scenarios dealing with both waste management and energy issues. Overall scenarios for the common project and sub-scenarios in parts of the project. Combining different types of scenarios to the tools of different disciplines. Use of explorative external scenarios based on marginals for consequential LCA. - Abstract: Development and use of scenarios for large interdisciplinary projects is a complicated task. This article provides practical examples of how it has been carried out in two projects addressing waste management and energy issues respectively. Based on experiences from the two projects, recommendations are made for an approach concerning development of scenarios in projects dealing with both waste management and energy issues. Recommendations are given to develop and use overall scenarios for the project and leave room for sub-scenarios in parts of the project. Combining different types of scenarios is recommended, too, in order to adapt to the methods and tools of different disciplines, such as developing predictive scenarios with general equilibrium tools and analysing explorative scenarios with energy system analysis tools. Furthermore, as marginals identified in differing future background systems determine the outcomes of consequential life cycle assessments (LCAs), it is considered advisable to develop and use explorative external scenarios based on possible marginals as a framework for consequential LCAs. This approach is illustrated using an on-going Danish research project.

  12. Biomass Scenario Model

    SciTech Connect (OSTI)

    2015-09-01

    The Biomass Scenario Model (BSM) is a unique, carefully validated, state-of-the-art dynamic model of the domestic biofuels supply chain which explicitly focuses on policy issues, their feasibility, and potential side effects. It integrates resource availability, physical/technological/economic constraints, behavior, and policy. The model uses a system dynamics simulation (not optimization) to model dynamic interactions across the supply chain.

  13. Big Data Privacy Scenarios

    E-Print Network [OSTI]

    Bruce, Elizabeth

    2015-10-01

    This paper is the first in a series on privacy in Big Data. As an outgrowth of a series of workshops on the topic, the Big Data Privacy Working Group undertook a study of a series of use scenarios to highlight the challenges ...

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

    E-Print Network [OSTI]

    Mulye, Leena

    2002-01-01

    use for the student community. Case-based representation and learning systems can be used to arrange and define the case study information. In this research, I have collected and categorized information about previous historic building designs. As a...

  15. Strategic Positioning in Tactical Scenario Planning

    E-Print Network [OSTI]

    Whitacre, James M; Sarker, Ruhul; Bender, Axel; Baker, Stephen; 10.1145/1389095.1389293

    2009-01-01

    Capability planning problems are pervasive throughout many areas of human interest with prominent examples found in defense and security. Planning provides a unique context for optimization that has not been explored in great detail and involves a number of interesting challenges which are distinct from traditional optimization research. Planning problems demand solutions that can satisfy a number of competing objectives on multiple scales related to robustness, adaptiveness, risk, etc. The scenario method is a key approach for planning. Scenarios can be defined for long-term as well as short-term plans. This paper introduces computational scenario-based planning problems and proposes ways to accommodate strategic positioning within the tactical planning domain. We demonstrate the methodology in a resource planning problem that is solved with a multi-objective evolutionary algorithm. Our discussion and results highlight the fact that scenario-based planning is naturally framed within a multi-objective setting...

  16. Case Based Reasoning for Information Personalization: Using a Context-Sensitive

    E-Print Network [OSTI]

    Abidi, Syed Sibte Raza

    of information to users; and (b) direct users to the right information, based on the user's current specificCase Based Reasoning for Information Personalization: Using a Context-Sensitive Compositional Case an intelligent information filtering strategy that is a hybrid of item-based Collaborative Filtering (CF

  17. Page 1 of 24 Case-based Reasoning for Evolutionary MEMS Design

    E-Print Network [OSTI]

    Agogino, Alice M.

    Page 1 of 24 Case-based Reasoning for Evolutionary MEMS Design Corie L. Cobb1 and Alice M. Agogino2-aided design tool for microelectromechanical systems (MEMS) design synthesis called CaSyn-MEMS (Case-based Synthesis of MEMS) has been developed. MEMS-based technologies have the potential to revolutionize many

  18. Standard Scenarios Annual Report

    Broader source: Energy.gov [DOE]

    The National Renewable Energy Laboratory is conducting a study sponsored by the U.S. Department of Energy DOE, Office of Energy Efficiency and Renewable Energy (EERE), that aims to document and implement an annual process designed to identify a realistic and timely set of input assumptions (e.g., technology cost and performance, fuel costs), and a diverse set of potential futures (standard scenarios), initially for electric sector analysis.

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

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2010-03-09

    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.

  20. Topologies to geometries in protein folding: Hierarchical and nonhierarchical scenarios

    E-Print Network [OSTI]

    Berry, R. Stephen

    Topologies to geometries in protein folding: Hierarchical and nonhierarchical scenarios Ariel Ferna presents a method to portray protein folding dynamics at a coarse resolution, based on a pattern

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

    E-Print Network [OSTI]

    Bergman, Keren

    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. A $?$CDM bounce scenario

    E-Print Network [OSTI]

    Yi-Fu Cai; Edward Wilson-Ewing

    2015-01-28

    We study a contracting universe composed of cold dark matter and radiation, and with a positive cosmological constant. As is well known from standard cosmological perturbation theory, under the assumption of initial quantum vacuum fluctuations the Fourier modes of the comoving curvature perturbation that exit the (sound) Hubble radius in such a contracting universe at a time of matter-domination will be nearly scale-invariant. Furthermore, the modes that exit the (sound) Hubble radius when the effective equation of state is slightly negative due to the cosmological constant will have a slight red tilt, in agreement with observations. We assume that loop quantum cosmology captures the correct high-curvature dynamics of the space-time, and this ensures that the big-bang singularity is resolved and is replaced by a bounce. We calculate the evolution of the perturbations through the bounce and find that they remain nearly scale-invariant. We also show that the amplitude of the scalar perturbations in this cosmology depends on a combination of the sound speed of cold dark matter, the Hubble rate in the contracting branch at the time of equality of the energy densities of cold dark matter and radiation, and the curvature scale that the loop quantum cosmology bounce occurs at. Importantly, as this scenario predicts a positive running of the scalar index, observations can potentially differentiate between it and inflationary models. Finally, for a small sound speed of cold dark matter, this scenario predicts a small tensor-to-scalar ratio.

  3. Representing Temporal Knowledge for Case-Based Prediction

    E-Print Network [OSTI]

    Aamodt, Agnar

    well drilling. 1 Introduction Most current CBR systems represent episodes as distinct snap. Our focus is on prediction problems for avoiding faulty situations. Based on a well-established theory-intensive CBR system Creek. The paper presents the theoretical foundation of the method, the representation

  4. 1 January 2006 1 Base Configuration and Case Studies

    E-Print Network [OSTI]

    prices (specified on area) - Yearly heat demand (specified on area) - Yearly electricity demand price - Sulphur tax Year 2000-2010 Year 2000-2010 Price flexible electricity demand Year 2000 in the Wilmar project. Furthermore apart from the base configuration, this note also contains a description

  5. An overview of alternative fossil fuel price and carbon regulation scenarios

    E-Print Network [OSTI]

    Wiser, Ryan; Bolinger, Mark

    2004-01-01

    of Alternative Fossil Fuel Price and Carbon Regulationthe past accuracy of fossil fuel price forecasts. We findfossil price scenarios, respectively, but in both cases these are integrated scenarios developed by altering numerous input assumptions, not just fuel price

  6. Risk Mathematics and Quantum Games on Quantum Risk Structures - A Nuclear War Scenario Game

    E-Print Network [OSTI]

    Gonalves, Carlos Pedro

    2012-01-01

    Quantum game theory is combined with risk mathematics' formalism to provide an approach to evolutionary scenario analysis. The formalism is addressed in its general form and is then applied to an extreme risks modelling case, to model a coevolving dynamical web of systemic situations representing the evolution of the regional tensions between two countries with nuclear weapons. The model's results are addressed regarding the potential for regional nuclear conflict to take place, and how evolutionary scenario analysis may contribute to nuclear war threat assessment and dynamical risk analysis. A final discussion is provided in what regards risk mathematics based on the evolutionary approach to risk assessement resulting from the combination of quantum game theory, morphic web representations and scenario analysis.

  7. Risk Mathematics and Quantum Games on Quantum Risk Structures - A Nuclear War Scenario Game

    E-Print Network [OSTI]

    Carlos Pedro Gonalves

    2012-11-28

    Quantum game theory is combined with risk mathematics' formalism to provide an approach to evolutionary scenario analysis. The formalism is addressed in its general form and is then applied to an extreme risks modelling case, to model a coevolving dynamical web of systemic situations representing the evolution of the regional tensions between two countries with nuclear weapons. The model's results are addressed regarding the potential for regional nuclear conflict to take place, and how evolutionary scenario analysis may contribute to nuclear war threat assessment and dynamical risk analysis. A final discussion is provided in what regards risk mathematics based on the evolutionary approach to risk assessement resulting from the combination of quantum game theory, morphic web representations and scenario analysis.

  8. Report on Scenario Development and Analysis

    E-Print Network [OSTI]

    ................................................................................................................................................4 Scenario 1: Higher wind penetration ..........................................................................................................4 Scenario 4: Reducing Cost of Electricity-as-usual ................................................................................................................................7 Scenario 1: Higher Wind Penetration

  9. On The IndistinguishabilityBased Security Model of Key Agreement Protocols-Simple Cases 1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    On The IndistinguishabilityBased Security Model of Key Agreement Protocols-Simple Cases 1 Zhaohui University White Hart Lane, London N17 8HR, United Kingdom {m.z.cheng of authenticated key agreement protocols in simple cases have been evolving for more than ten years. In this paper

  10. On The Indistinguishability-Based Security Model of Key Agreement Protocols-Simple Cases1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    On The Indistinguishability-Based Security Model of Key Agreement Protocols-Simple Cases1 Zhaohui University White Hart Lane, London N17 8HR, United Kingdom {m.z.cheng of authenticated key agreement protocols in simple cases have been evolving for more than ten years. In this paper

  11. Thesaurus-based Retrieval of Case Law Michel C.A. KLEIN a

    E-Print Network [OSTI]

    van Harmelen, Frank

    Thesaurus-based Retrieval of Case Law Michel C.A. KLEIN a , Wouter VAN STEENBERGEN b , Elisabeth M within the domain of tort law from a repository of 68.000 court verdicts. We apply a thesaurus interpretation. Keywords. retrieval, case law, ontology, thesaurus 1. Introduction The judiciary is faced

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

    E-Print Network [OSTI]

    Kang, Joo Ok

    1975-01-01

    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...

  13. The Case for Mobile Devices in Environmental Observing Systems

    E-Print Network [OSTI]

    to interact with the embedded cyberinfrastructure, such as the sensor network. To bridge this gap, we argue devices such as PDAs and smart phones. We identify several key use cases and user bases, and explain how to be considered. We identify several key use case scenarios and user bases. In order to bridge this gap

  14. Status of Light Gaugino Scenarios

    E-Print Network [OSTI]

    Glennys R. Farrar

    1997-10-08

    I summarize recent devlopments in supersymmetry scenarios which leave some or all gauginos light. The emphasis is on experimental and phenomenological progress in the past year.

  15. Scenario Reduction and Scenario Tree Construction for Power Management Problems

    E-Print Network [OSTI]

    Römisch, Werner

    1 Scenario Reduction and Scenario Tree Construction for Power Management Problems Nicole Gr¨owe-Kuska, Holger Heitsch and Werner R¨omisch Abstract-- Portfolio and risk management problems of power utilities and corresponding probabilities to model the multivariate random data process (electrical load, stream flows

  16. Selected Findings from Scenario Analysis

    E-Print Network [OSTI]

    of resources (e.g. wind, solar PV, CCCT) when integrated into an existing power system. The System Capacity requirements 7 #12;Now, On To Scenario Comparisons and Observations Net System Cost Least Cost Strategies for 1B, 2B, 2C and 3 A 53 97 123 135 167 178 266 Net System Cost (Billions 2012 $) Probability Scenario 1

  17. Biofuel and Bioenergy implementation scenarios

    E-Print Network [OSTI]

    Biofuel and Bioenergy implementation scenarios Final report of VIEWLS WP5, modelling studies #12;Biofuel and Bioenergy implementation scenarios Final report of VIEWLS WP5, modelling studies By Andr of this project are to provide structured and clear data on the availability and performance of biofuels

  18. Case-Based Plan Recognition with Incomplete Plan Libraries Boris Kerkez and Michael T. Cox

    E-Print Network [OSTI]

    Kerkez, Boris

    Case-Based Plan Recognition with Incomplete Plan Libraries Boris Kerkez and Michael T. Cox-based keyhole plan recognition dealing with incomplete plan libraries. Most traditional plan recognition systems operate with complete plan libraries that contain all of the possible plans the planner may pursue

  19. QAA Good Practice Knowledgebase case study University of Reading: Web-based support for assessment

    E-Print Network [OSTI]

    Neirotti, Juan Pablo

    QAA Good Practice Knowledgebase case study University of Reading: Web-based support for assessment Theme Assessment and feedback Sub-themes Web-based support Feature of good practice as identified by Institutional Review November 2012 (quoted directly from the review report) The University offers excellent web

  20. 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

  1. 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

  2. FPGA-BASED 3D GRAPHICS PROCESSOR WITH PCI-BUS INTERFACE, AN IMPLEMENTATION CASE

    E-Print Network [OSTI]

    FPGA-BASED 3D GRAPHICS PROCESSOR WITH PCI-BUS INTERFACE, AN IMPLEMENTATION CASE STUDY Hans Holten of a 3D graphics processor. Practical design issues dealing with a PCI-bus based reconfigurable FPGA prototyping board are discussed. PCI drivers and bandwidth issues are discussed. An analog VGA video output

  3. Performance-based Specifications in Public Procurement: Exploring the Case of Germany

    E-Print Network [OSTI]

    Vellekoop, Michel

    Performance-based Specifications in Public Procurement: Exploring the Case of Germany Author rising requirements on the sector such as sustainability and innovation aspects impose challenges valuable solutions is the employment of performance-based specifications (PBS) in the procurement process

  4. The Case For Prediction-based Best-effort Real-time Systems

    E-Print Network [OSTI]

    The Case For Prediction-based Best-effort Real-time Systems Peter A. Dinda Bruce Lowekamp Loukas and Distributed Real- Time Systems (WPDRTS '99) Abstract We propose a prediction-based best-effort real significant examples, an earthquake visualization tool and a GIS map display tool, and show how they could

  5. Rolling in the modulated reheating scenario

    SciTech Connect (OSTI)

    Kobayashi, Naoya; Kobayashi, Takeshi; Erickcek, Adrienne L. E-mail: takeshi@cita.utoronto.ca

    2014-01-01

    In the modulated reheating scenario, the field that drives inflation has a spatially varying decay rate, and the resulting inhomogeneous reheating process generates adiabatic perturbations. We examine the statistical properties of the density perturbations generated in this scenario. Unlike earlier analyses, we include the dynamics of the field that determines the inflaton decay rate. We show that the dynamics of this modulus field can significantly alter the amplitude of the power spectrum and the bispectrum, even if the modulus field has a simple potential and its effective mass is smaller than the Hubble rate. In some cases, the evolution of the modulus amplifies the non-Gaussianity of the perturbations to levels that are excluded by recent observations of the cosmic microwave background. Therefore, a proper treatment of the modulus dynamics is required to accurately calculate the statistical properties of the perturbations generated by modulated reheating.

  6. Rooftop Photovoltaics Market Penetration Scenarios

    SciTech Connect (OSTI)

    Paidipati, J.; Frantzis, L.; Sawyer, H.; Kurrasch, A.

    2008-02-01

    The goal of this study was to model the market penetration of rooftop photovoltaics (PV) in the United States under a variety of scenarios, on a state-by-state basis, from 2007 to 2015.

  7. Energy Scenarios for East Asia: 2005-2025

    E-Print Network [OSTI]

    Paltsev, Sergey

    We describe several scenarios for economic development and energy use in East Asia based on the MIT Emissions Prediction and Policy Analysis (EPPA) model, a computable general equilibrium model of the world economy. Historic ...

  8. Transport and Evolution of a Pollution Plume from Northern China: A Satellite-Based Case Study

    E-Print Network [OSTI]

    Dickerson, Russell R.

    of pollution transport and their impact on weather and climate. 2 #12;1. Introduction China's air pollutionTransport and Evolution of a Pollution Plume from Northern China: A Satellite-Based Case Study Can the EAST-AIRE aircraft campaign, heavy loadings of SO2 (20 ppb near ground, 1-3 ppb at ~2 km altitude

  9. View Based Integration of Heterogeneous Web Service Registries--the Case of VISR

    E-Print Network [OSTI]

    Dustdar, Schahram

    View Based Integration of Heterogeneous Web Service Registries--the Case of VISR Schahram Dustdar efforts in the Web service area, several dif- ferent incompatible Web service registry implementations distributed Web service registries. In addition, the creation of specialized Web service registries leads

  10. Towards Smart Grids: Performing Case studies with a Risk-based Security Assessment Methodology

    E-Print Network [OSTI]

    Vuik, Kees

    Towards Smart Grids: Performing Case studies with a Risk- based Security Assessment Methodology grid operation in the future, additional measures are needed to stabilise the electrical power system. One may think of: inclusion of "smart components", such as phase-shifting transformers (PSTs

  11. GIS BASED PLANNING OF INFRASTRUCTURE IN NEW TOWNS THE CASE OF NEW FAYOUM

    E-Print Network [OSTI]

    GIS BASED PLANNING OF INFRASTRUCTURE IN NEW TOWNS THE CASE OF NEW FAYOUM M.J.G. Brussel, Egypt trhud@intouch.com, uti@internetegypt.com, www.uti-egypt.org KEYWORDS: Infrastructure planning, site selection, GIS, sewerage systems, new towns. ABSTRACT: The planning and engineering

  12. Summary of "Energy saving in smart homes based on consumer behavior: A case study"

    E-Print Network [OSTI]

    Weigle, Michele

    Summary of "Energy saving in smart homes based on consumer behavior: A case study" Michael Zehnder energy savings in the home. An automated system, called digitalSTROM, was used for collecting data to inform inhabitants on saving energy by taking actions, while not sacrificing their comfort of living

  13. A Case-Based Approach for Coordinated Action Selection in Robot Soccer

    E-Print Network [OSTI]

    Mántaras, Ramon López de

    A Case-Based Approach for Coordinated Action Selection in Robot Soccer Raquel Ros 1 , Josep Llu Mellon University Pittsburgh, PA 15213, USA Abstract Designing coordinated robot behaviors in uncertain, dynamic, real-time, adversarial environments, such as in robot soccer, is very challenging. In this work

  14. MEMS Design Synthesis: Integrating Case-based Reasoning and Multi-objective Genetic Algorithms

    E-Print Network [OSTI]

    Agogino, Alice M.

    MEMS Design Synthesis: Integrating Case-based Reasoning and Multi-objective Genetic Algorithms-Electro-Mechanical Systems (MEMS) design tool that uses a multi-objective genetic algorithm (MOGA) to synthesize and optimize conceptual designs. CBR utilizes previously successful MEMS designs and sub-assemblies as building blocks

  15. Case-Based Reasoning in a System Architecture for Intelligent Fish Farming

    E-Print Network [OSTI]

    Aamodt, Agnar

    Case-Based Reasoning in a System Architecture for Intelligent Fish Farming Axel TIDEMANN a , Finn Abstract. Fish farmers manage assets of considerable value on a daily basis. Many aspects of the daily known informally by the fish farmers themselves, through years of experience. Companies that can store

  16. Recent Advances on Agent Based Tsunami Evacuation Simulation: Case Studies at Indonesia, Thailand, Japan

    E-Print Network [OSTI]

    Recent Advances on Agent Based Tsunami Evacuation Simulation: Case Studies at Indonesia, Thailand Through tsunami numerical models, tsunami researchers have worked on the understanding of the physics of tsunami events. Efforts to comprehend not only the natural phenomena but also the social complex behavior

  17. Deployment Effects of Marine Renewable Energy Technologies: Wave Energy Scenarios

    SciTech Connect (OSTI)

    Mirko Previsic

    2010-06-17

    Given proper care in siting, design, deployment, operation and maintenance, wave energy conversion could become one of the more environmentally benign sources of electricity generation. In order to accelerate the adoption of these emerging hydrokinetic and marine energy technologies, navigational and environmental concerns must be identified and addressed. All developing hydrokinetic projects involve a wide variety of stakeholders. One of the key issues that site developers face as they engage with this range of stakeholders is that, due to a lack of technical certainty, many of the possible conflicts (e.g., shipping and fishing) and environmental issues are not well-understood,. In September 2008, re vision consulting, LLC was selected by the Department of Energy (DoE) to apply a scenario-based assessment to the emerging hydrokinetic technology sector in order to evaluate the potential impact of these technologies on the marine environment and navigation constraints. The projects scope of work includes the establishment of baseline scenarios for wave and tidal power conversion at potential future deployment sites. The scenarios capture variations in technical approaches and deployment scales to properly identify and characterize environmental effects and navigational effects. The goal of the project is to provide all stakeholders with an improved understanding of the potential range of technical attributes and potential effects of these emerging technologies and focus all stakeholders on the critical issues that need to be addressed. By identifying and addressing navigational and environmental concerns in the early stages of the industrys development, serious mistakes that could potentially derail industry-wide development can be avoided. This groundwork will also help in streamlining siting and associated permitting processes, which are considered key hurdles for the industrys development in the U.S. today. Re vision is coordinating its efforts with two other project teams funded by DoE which are focused on regulatory issues (Pacific Energy Ventures) and navigational issues (PCCI). The results of this study are structured into three reports: (1) Wave power scenario description (2) Tidal power scenario description (3) Framework for Identifying Key Environmental Concerns This is the first report in the sequence and describes the results of conceptual feasibility studies of wave power plants deployed in Humboldt County, California and Oahu, Hawaii. These two sites contain many of the same competing stakeholder interactions identified at other wave power sites in the U.S. and serve as representative case studies. Wave power remains at an early stage of development. As such, a wide range of different technologies are being pursued by different manufacturers. In order to properly characterize potential effects, it is useful to characterize the range of technologies that could be deployed at the site of interest. An industry survey informed the process of selecting representative wave power devices. The selection criteria requires that devices are at an advanced stage of development to reduce technical uncertainties, and that enough data are available from the manufacturers to inform the conceptual design process of this study. Further, an attempt is made to cover the range of different technologies under development to capture variations in potential environmental effects. Table 1 summarizes the selected wave power technologies. A number of other developers are also at an advanced stage of development, but are not directly mentioned here. Many environmental effects will largely scale with the size of the wave power plant. In many cases, the effects of a single device may not be measurable, while larger scale device arrays may have cumulative impacts that differ significantly from smaller scale deployments. In order to characterize these effects, scenarios are established at three deployment scales which nominally represent (1) a small pilot deployment, (2) a small commercial deployment, and (3) a large commercial sc

  18. California Energy Demand Scenario Projections to 2050

    E-Print Network [OSTI]

    McCarthy, Ryan; Yang, Christopher; Ogden, Joan M.

    2008-01-01

    duty fuel demand in alternate scenarios. ..for light-duty fuel demand in alternate scenarios. Minimum52 Heavy-duty vehicle fuel demand for each alternate

  19. SCENARIOS FOR MEETING CALIFORNIA'S 2050 CLIMATE GOALS California's Carbon Challenge Phase II Volume I: Non-Electricity Sectors and Overall Scenario Results

    E-Print Network [OSTI]

    Wei, Max

    2014-01-01

    California Average Hourly Generation Mix by Fuel, ImportsBase Scenario Average Hourly Generation Mix by Fuel withinCalifornia Average Hourly Generation Mix by Fuel, Imports

  20. Description of the Scenario Machine

    E-Print Network [OSTI]

    V. M. Lipunov; K. A. Postnov; M. E. Prokhorov; A. I. Bogomazov

    2007-09-26

    We present here an updated description of the "Scenario Machine" code. This tool is used to carry out a population synthesis of binary stars. Previous version of the description can be found at http://xray.sai.msu.ru/~mystery//articles/review/contents.html

  1. Transportation scenarios for risk analysis.

    SciTech Connect (OSTI)

    Weiner, Ruth F.

    2010-09-01

    Transportation risk, like any risk, is defined by the risk triplet: what can happen (the scenario), how likely it is (the probability), and the resulting consequences. This paper evaluates the development of transportation scenarios, the associated probabilities, and the consequences. The most likely radioactive materials transportation scenario is routine, incident-free transportation, which has a probability indistinguishable from unity. Accident scenarios in radioactive materials transportation are of three different types: accidents in which there is no impact on the radioactive cargo, accidents in which some gamma shielding may be lost but there is no release of radioactive material, and accident in which radioactive material may potentially be released. Accident frequencies, obtainable from recorded data validated by the U.S. Department of Transportation, are considered equivalent to accident probabilities in this study. Probabilities of different types of accidents are conditional probabilities, conditional on an accident occurring, and are developed from event trees. Development of all of these probabilities and the associated highway and rail accident event trees are discussed in this paper.

  2. Geographically Based Hydrogen Demand and Infrastructure Rollout...

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

    Rollout Scenario Analysis Geographically Based Hydrogen Demand and Infrastructure Rollout Scenario Analysis Presentation by Margo Melendez at the 2010-2025 Scenario Analysis for...

  3. Genotype-based Case-Control Analysis, Violation of Hardy-Weinberg Equilibrium, and Phase Diagrams

    E-Print Network [OSTI]

    Young Ju Suh; Wentian Li

    2008-03-12

    We study in detail a particular statistical method in genetic case-control analysis, labeled "genotype-based association", in which the two test results from assuming dominant and recessive model are combined in one optimal output. This method differs both from the allele-based association which artificially doubles the sample size, and the direct chi-square test on 3-by-2 contingency table which may overestimate the degree of freedom. We conclude that the comparative advantage (or disadvantage) of the genotype-based test over the allele-based test mainly depends on two parameters, the allele frequency difference delta and the Hardy-Weinberg disequilibrium coefficient difference delta_epsilon. Six different situations, called "phases", characterized by the two X^2 test statistics in allele-based and genotype-based test, are well separated in the phase diagram parameterized by delta and delta_epsilon. For two major groups of phases, a single parameter theta = tan^-1 (delta/delta_epsilon) is able to achieves an almost perfect phase separation. We also applied the analytic result to several types of disease models. It is shown that for dominant and additive models, genotype-based tests are favored over allele-based tests.

  4. Similarity-Based Retrieval for Biomedical Applications

    E-Print Network [OSTI]

    Oliva, Aude

    Similarity-based image retrieval is part of the case-based reasoning scenario. It allows for the retrieval visually similar images for advertising and market- ing. In the medical domain, similarity-based retrieval in this area has related to the design of distance measures for accurate retrieval in various application

  5. SERA Scenarios of Early Market Fuel Cell Electric Vehicle Introductions: Modeling Framework, Regional Markets, and Station Clustering; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Melaina, M.

    2015-03-23

    This presentation provides an overview of the Scenario Evaluation and Regionalization Analysis (SERA) model, describes the methodology for developing scenarios for hydrogen infrastructure development, outlines an example "Hydrogen Success" scenario, and discusses detailed scenario metrics for a particular case study region, the Northeast Corridor.

  6. Materials and design bases issues in ASME Code Case N-47

    SciTech Connect (OSTI)

    Huddleston, R.L.; Swindeman, R.W. [Oak Ridge National Lab., TN (United States)

    1993-04-01

    A preliminary evaluation of the design bases (principally ASME Code Case N-47) was conducted for design and operation of reactors at elevated temperatures where the time-dependent effects of creep, creep-fatigue, and creep ratcheting are significant. Areas where Code rules or regulatory guides may be lacking or inadequate to ensure the operation over the expected life cycles for the next-generation advanced high-temperature reactor systems, with designs to be certified by the US Nuclear Regulatory Commission, have been identified as unresolved issues. Twenty-two unresolved issues were identified and brief scoping plans developed for resolving these issues.

  7. HIPPS concepts for a subsea field scenario

    SciTech Connect (OSTI)

    Lund, B.F.; Onshus, T.; Aaroe, R.

    1995-12-31

    This paper is based on a feasibility study investigating the possibilities of using a HIPPS (High Integrity Pressure Protection System) to protect a subsea pipeline which is not rated for full wellhead shut-in pressure. Several different HIPPS configurations have been evaluated with respect to safety, production regularity and various qualitative criteria for use in a specific subsea field scenario containing six wells. A preliminary review of the feasibility of current technology for HIPPS applications has been made. The conclusion is that a subsea HIPPS can be designed with satisfactory safety performance based on current technology. The paper also covers requirements posed to the HIPPS equipment as well as general requirements for process design and operation when a pipeline not rated for full well shut-in pressure is present.

  8. Underground infrastructure damage for a Chicago scenario

    SciTech Connect (OSTI)

    Dey, Thomas N; Bos, Rabdall J

    2011-01-25

    Estimating effects due to an urban IND (improvised nuclear device) on underground structures and underground utilities is a challenging task. Nuclear effects tests performed at the Nevada Test Site (NTS) during the era of nuclear weapons testing provides much information on how underground military structures respond. Transferring this knowledge to answer questions about the urban civilian environment is needed to help plan responses to IND scenarios. Explosions just above the ground surface can only couple a small fraction of the blast energy into an underground shock. The various forms of nuclear radiation have limited penetration into the ground. While the shock transmitted into the ground carries only a small fraction of the blast energy, peak stresses are generally higher and peak ground displacement is lower than in the air blast. While underground military structures are often designed to resist stresses substantially higher than due to the overlying rocks and soils (overburden), civilian structures such as subways and tunnels would generally only need to resist overburden conditions with a suitable safety factor. Just as we expect the buildings themselves to channel and shield air blast above ground, basements and other underground openings as well as changes of geology will channel and shield the underground shock wave. While a weaker shock is expected in an urban environment, small displacements on very close-by faults, and more likely, soils being displaced past building foundations where utility lines enter could readily damaged or disable these services. Immediately near an explosion, the blast can 'liquefy' a saturated soil creating a quicksand-like condition for a period of time. We extrapolate the nuclear effects experience to a Chicago-based scenario. We consider the TARP (Tunnel and Reservoir Project) and subway system and the underground lifeline (electric, gas, water, etc) system and provide guidance for planning this scenario.

  9. Addressing an Uncertain Future Using Scenario Analysis

    E-Print Network [OSTI]

    Siddiqui, Afzal S.; Marnay, Chris

    2008-01-01

    a scenario may be an oil price hike in a future year, whichon the impact of high oil prices on the global economy (seethe scenario of a high oil price (of US$35/barrel, which is

  10. Report on Scenario Development and Analysis

    E-Print Network [OSTI]

    Natural Energy Institute School of Ocean and Earth Science and Technology November 2007 #12................................................................................................................................................4 Scenario 1: Higher wind penetration-as-usual ................................................................................................................................7 Scenario 1: Higher Wind Penetration

  11. Viability of the Matter Bounce Scenario

    E-Print Network [OSTI]

    Jaume de Haro; Jaume Amors

    2014-11-27

    It is shown that teleparallel $F({\\mathcal T})$ theories of gravity combined with Loop Quantum Cosmology support a Matter Bounce Scenario which is an alternative to the inflation scenario in the Big Bang paradigm. It is checked thatthese bouncing models provide theoretical data that fits well with the current observational data, allowing the viability of the Matter Bounce Scenario.

  12. Cosmological moduli problem in large volume scenario and thermal inflation

    SciTech Connect (OSTI)

    Choi, Kiwoon [Department of Physics, KAIST, Daejeon 305-701 (Korea, Republic of); Park, Wan-Il [School of Physics, KIAS, Seoul 130-722 (Korea, Republic of); Shin, Chang Sub, E-mail: kchoi@kaist.ac.kr, E-mail: wipark@kias.re.kr, E-mail: csshin@apctp.org [APCTP, Pohang, Gyeongbuk 790-784 (Korea, Republic of)

    2013-03-01

    We show that in a large volume scenario of type IIB string or F-theory compactifications, single thermal inflation provides only a partial solution to the cosmological problem of the light volume modulus. We then clarify the conditions for double thermal inflation, being a simple extension of the usual single thermal inflation scenario, to solve the cosmological moduli problem in the case of relatively light moduli masses. Using a specific example, we demonstrate that double thermal inflation can be realized in large volume scenario in a natural manner, and the problem of the light volume modulus can be solved for the whole relevant mass range. We also find that right amount of baryon asymmetry and dark matter can be obtained via a late-time Affleck-Dine mechanism and the decays of the visible sector NLSP to flatino LSP.

  13. Overview of the Hydrogen Financial Analysis Scenario Tool (H2FAST); NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Melaina, Marc; Bush, Brian; Penev, Michael

    2015-05-12

    This presentation provides an introduction to the Hydrogen Financial Analysis Scenario Tool (H2FAST) and includes an overview of each of the three versions of H2FAST: the Web tool, the Excel spreadsheet version, and the beta version of the H2FAST Business Case Scenario tool.

  14. Addressing an Uncertain Future Using Scenario Analysis

    SciTech Connect (OSTI)

    Siddiqui, Afzal S.; Marnay, Chris

    2006-12-15

    The Office of Energy Efficiency and Renewable Energy (EERE) has had a longstanding goal of introducing uncertainty into the analysis it routinely conducts in compliance with the Government Performance and Results Act (GPRA) and for strategic management purposes. The need to introduce some treatment of uncertainty arises both because it would be good general management practice, and because intuitively many of the technologies under development by EERE have a considerable advantage in an uncertain world. For example, an expected kWh output from a wind generator in a future year, which is not exposed to volatile and unpredictable fuel prices, should be truly worth more than an equivalent kWh from an alternative fossil fuel fired technology. Indeed, analysts have attempted to measure this value by comparing the prices observed in fixed-price natural gas contracts compared to ones in which buyers are exposed to market prices (see Bolinger, Wiser, and Golove and (2004)). In addition to the routine reasons for exploring uncertainty given above, the history of energy markets appears to have exhibited infrequent, but troubling, regime shifts, i.e., historic turning points at which the center of gravity or fundamental nature of the system appears to have abruptly shifted. Figure 1 below shows an estimate of how the history of natural gas fired generating costs has evolved over the last three decades. The costs shown incorporate both the well-head gas price and an estimate of how improving generation technology has gradually tended to lower costs. The purpose of this paper is to explore scenario analysis as a method for introducing uncertainty into EERE's forecasting in a manner consistent with the preceding observation. The two questions are how could it be done, and what is its academic basis, if any. Despite the interest in uncertainty methods, applying them poses some major hurdles because of the heavy reliance of EERE on forecasting tools that are deterministic in nature, such as the Energy Information Administration's (EIA's) National Energy Modeling System (NEMS). NEMS is the source of the influential Annual Energy Outlook whose business-as-usual (BAU) case, the Reference Case, forms the baseline for most of the U.S. energy policy discussion. NEMS is an optimizing model because: 1. it iterates to an equilibrium among modules representing the supply, demand, and energy conversion subsectors; and 2. several subsectoral models are individually solved using linear programs (LP). Consequently, it is deeply rooted in the recent past and any effort to simulate the consequences of a major regime shift as depicted in Figure 1 must come by applying an exogenously specified scenario. And, more generally, simulating futures that lie outside of our recent historic experience, even if they do not include regime switches suggest some form of scenario approach. At the same time, the statistical validity of scenarios that deviate significantly outside the ranges of historic inputs should be questioned.

  15. Radiation Detection Computational Benchmark Scenarios

    SciTech Connect (OSTI)

    Shaver, Mark W.; Casella, Andrew M.; Wittman, Richard S.; McDonald, Ben S.

    2013-09-24

    Modeling forms an important component of radiation detection development, allowing for testing of new detector designs, evaluation of existing equipment against a wide variety of potential threat sources, and assessing operation performance of radiation detection systems. This can, however, result in large and complex scenarios which are time consuming to model. A variety of approaches to radiation transport modeling exist with complementary strengths and weaknesses for different problems. This variety of approaches, and the development of promising new tools (such as ORNLs ADVANTG) which combine benefits of multiple approaches, illustrates the need for a means of evaluating or comparing different techniques for radiation detection problems. This report presents a set of 9 benchmark problems for comparing different types of radiation transport calculations, identifying appropriate tools for classes of problems, and testing and guiding the development of new methods. The benchmarks were drawn primarily from existing or previous calculations with a preference for scenarios which include experimental data, or otherwise have results with a high level of confidence, are non-sensitive, and represent problem sets of interest to NA-22. From a technical perspective, the benchmarks were chosen to span a range of difficulty and to include gamma transport, neutron transport, or both and represent different important physical processes and a range of sensitivity to angular or energy fidelity. Following benchmark identification, existing information about geometry, measurements, and previous calculations were assembled. Monte Carlo results (MCNP decks) were reviewed or created and re-run in order to attain accurate computational times and to verify agreement with experimental data, when present. Benchmark information was then conveyed to ORNL in order to guide testing and development of hybrid calculations. The results of those ADVANTG calculations were then sent to PNNL for compilation. This is a report describing the details of the selected Benchmarks and results from various transport codes.

  16. Analysis of advanced european nuclear fuel cycle scenarios including transmutation and economical estimates

    SciTech Connect (OSTI)

    Merino Rodriguez, I.; Alvarez-Velarde, F.; Martin-Fuertes, F. [CIEMAT, Avda. Complutense, 40, 28040 Madrid (Spain)

    2013-07-01

    In this work the transition from the existing Light Water Reactors (LWR) to the advanced reactors is analyzed, including Generation III+ reactors in a European framework. Four European fuel cycle scenarios involving transmutation options have been addressed. The first scenario (i.e., reference) is the current fleet using LWR technology and open fuel cycle. The second scenario assumes a full replacement of the initial fleet with Fast Reactors (FR) burning U-Pu MOX fuel. The third scenario is a modification of the second one introducing Minor Actinide (MA) transmutation in a fraction of the FR fleet. Finally, in the fourth scenario, the LWR fleet is replaced using FR with MOX fuel as well as Accelerator Driven Systems (ADS) for MA transmutation. All scenarios consider an intermediate period of GEN-III+ LWR deployment and they extend for a period of 200 years looking for equilibrium mass flows. The simulations were made using the TR-EVOL code, a tool for fuel cycle studies developed by CIEMAT. The results reveal that all scenarios are feasible according to nuclear resources demand (U and Pu). Concerning to no transmutation cases, the second scenario reduces considerably the Pu inventory in repositories compared to the reference scenario, although the MA inventory increases. The transmutation scenarios show that elimination of the LWR MA legacy requires on one hand a maximum of 33% fraction (i.e., a peak value of 26 FR units) of the FR fleet dedicated to transmutation (MA in MOX fuel, homogeneous transmutation). On the other hand a maximum number of ADS plants accounting for 5% of electricity generation are predicted in the fourth scenario (i.e., 35 ADS units). Regarding the economic analysis, the estimations show an increase of LCOE (Levelized cost of electricity) - averaged over the whole period - with respect to the reference scenario of 21% and 29% for FR and FR with transmutation scenarios respectively, and 34% for the fourth scenario. (authors)

  17. EWO Seminar "Using IMPRESS for Supply-Chain Scenario-

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    Introduction. What is IMPRESS? Jet Fuel Supply Chain & Why it's Complex. Scenario Generation. IMPRESS. To highlight IMPRESS, we detail a small jet fuel supply-chain problem which includes an oil-refinery producing Pipeline & Marine Shipping Energy Management 6 #12;Why are we unique? IMPRESS is flowsheet-based (i

  18. Hiring Scenario Employee You have interviewed with a local company.

    E-Print Network [OSTI]

    Allan, Vicki H.

    Hiring Scenario Employee You have interviewed with a local company. The hiring manager calls you and offers you a job at $40,000 yearly base salary plus benefits. This is a great company a family history of depression. Depending on if you have another job offer, if you are currently working

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

    SciTech Connect (OSTI)

    Dowding, Kevin J.; Rutherford, Brian Milne

    2003-07-01

    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

  20. Undulator Hall Air Temperature Fault Scenarios

    SciTech Connect (OSTI)

    Sevilla, J.; Welch, J.; ,

    2010-11-17

    Recent experience indicates that the LCLS undulator segments must not, at any time following tuning, be allowed to change temperature by more than about {+-}2.5 C or the magnetic center will irreversibly shift outside of acceptable tolerances. This vulnerability raises a concern that under fault conditions the ambient temperature in the Undulator Hall might go outside of the safe range and potentially could require removal and retuning of all the segments. In this note we estimate changes that can be expected in the Undulator Hall air temperature for three fault scenarios: (1) System-wide power failure; (2) Heating Ventilation and Air Conditioning (HVAC) system shutdown; and (3) HVAC system temperature regulation fault. We find that for either a system-wide power failure or an HVAC system shutdown (with the technical equipment left on), the short-term temperature changes of the air would be modest due to the ability of the walls and floor to act as a heat ballast. No action would be needed to protect the undulator system in the event of a system-wide power failure. Some action to adjust the heat balance, in the case of the HVAC power failure with the equipment left on, might be desirable but is not required. On the other hand, a temperature regulation failure of the HVAC system can quickly cause large excursions in air temperature and prompt action would be required to avoid damage to the undulator system.

  1. How should indicators be found for scenario monitoring ?

    E-Print Network [OSTI]

    He, Zheng, M. Eng. Massachusetts Institute of Technology

    2013-01-01

    Scenario planning is a widely used approach for developing long-term strategies. The typical scenario process involves developing scenarios, identifying strategies whose success is contingent on the scenario, and monitoring ...

  2. 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

    2008-04-01

    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.

  3. Preview of Scenario Planning & Collaborative Modeling Processes

    E-Print Network [OSTI]

    and quantitative data and information. Both are communication tools #12;What are Scenarios? Stories about / issue we want to address? Monitor As new information unfolds, which scenarios seem most valid? Does winter precipitation relative to summer PrecipitationPatterns Shrubland Novel Ecosystem Mixed

  4. CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN

    E-Print Network [OSTI]

    CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN FUELLED VEHICLES by Katherine Aminta Muncaster of Research Project: Can Hydrogen Win?: Exploring Scenarios for Hydrogen Fuelled Vehicles Report No.: 459 explored the conditions under which hydrogen might succeed in Canada's transportation sector in a carbon

  5. SCENARIO ANALYSES OF CALIFORNIA'S ELECTRICITY SYSTEM: PRELIMINARY

    E-Print Network [OSTI]

    Generation Sector ................................................. 23 Fuel Price Projections in the Scenario.D. Principal Author Michael R. Jaske, Ph.D. Scenario Project Manager Lorraine White IEPR Project Manager Sylvia.................................................................................................... 22 CHAPTER 3 - Natural Gas Market Clearing Price Implications of Reduced Consumption from the Power

  6. Proposed Scope and Schedule for Scenario and

    E-Print Network [OSTI]

    conservation and demand response development. Sensitivity S2 Scenarios 1B and 2C w/Lower Natural Gas Prices on resource development of significantly lower natural gas prices. Sensitivity S3 Scenarios 1B and 2C w and chapters. 2 #12;2014 Q4 Q1 2015 Q2 2015 Demand/Price Forecasts Updated Methodology for Quantification

  7. Tank waste remediation system operational scenario

    SciTech Connect (OSTI)

    Johnson, M.E.

    1995-05-01

    The Tank Waste Remediation System (TWRS) mission is to store, treat, and immobilize highly radioactive Hanford waste (current and future tank waste and the strontium and cesium capsules) in an environmentally sound, safe, and cost-effective manner (DOE 1993). This operational scenario is a description of the facilities that are necessary to remediate the Hanford Site tank wastes. The TWRS Program is developing technologies, conducting engineering analyses, and preparing for design and construction of facilities necessary to remediate the Hanford Site tank wastes. An Environmental Impact Statement (EIS) is being prepared to evaluate proposed actions of the TWRS. This operational scenario is only one of many plausible scenarios that would result from the completion of TWRS technology development, engineering analyses, design and construction activities and the TWRS EIS. This operational scenario will be updated as the development of the TWRS proceeds and will be used as a benchmark by which to evaluate alternative scenarios.

  8. Agent-based models as scientific methodology: A case study analysing the DomWorld theory of

    E-Print Network [OSTI]

    Bryson, Joanna J.

    Agent-based models as scientific methodology: A case study analysing the DomWorld theory of primate earlier discussion of ABM as a scientific methodology in light of our analysis of Dom- World. We show Abstract A scientific methodology must provide two things: first a means of explanation, and second

  9. 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

  10. 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

  11. Scenarios for Consuming Standardized Automated Demand Response Signals

    SciTech Connect (OSTI)

    Koch, Ed; Piette, Mary Ann

    2008-10-03

    Automated Demand Response (DR) programs require that Utility/ISO's deliver DR signals to participants via a machine to machine communications channel. Typically these DR signals constitute business logic information (e.g. prices and reliability/shed levels) as opposed to commands to control specific loads in the facility. At some point in the chain from the Utility/ISO to the loads in a facility, the business level information sent by the Utility/ISO must be processed and used to execute a DR strategy for the facility. This paper explores the various scenarios and types of participants that may utilize DR signals from the Utility/ISO. Specifically it explores scenarios ranging from single end user facility, to third party facility managers and DR Aggregators. In each of these scenarios it is pointed out where the DR signal sent from the Utility/ISO is processed and turned into the specific load control commands that are part of a DR strategy for a facility. The information in these signals is discussed. In some cases the DR strategy will be completely embedded in the facility while in others it may be centralized at a third party (e.g. Aggregator) and part of an aggregated set of facilities. This paper also discusses the pros and cons of the various scenarios and discusses how the Utility/ISO can use an open standardized method (e.g. Open Automated Demand Response Communication Standards) for delivering DR signals that will promote interoperability and insure that the widest range of end user facilities can participate in DR programs regardless of which scenario they belong to.

  12. Design Support of an Above Cap-rock Early Detection Monitoring System using Simulated Leakage Scenarios at the FutureGen2.0 Site

    SciTech Connect (OSTI)

    Williams, Mark D.; USA, Richland Washington; Vermuel, Vince R.; USA, Richland Washington; Oostrom, Mart; USA, Richland Washington; Porse, Sean L.; USA, Richland Washington; Thorne, Paul D.; USA, Richland Washington; Szecsody, Jim E.; USA, Richland Washington; Horner, Jake A.; USA, Richland Washington; Gilmore, Tyler J.; USA, Richland Washington

    2014-12-31

    The FutureGen 2.0 Project will design and build a first-of-its-kind, near-zero emissions coal-fueled power plant with carbon capture and storage (CCS). To assess storage site performance and meet the regulatory requirements of the Class VI Underground Injection Control (UIC) Program for CO2 Geologic Sequestration, the FutureGen 2.0 project will implement a suite of monitoring technologies designed to evaluate CO2 mass balance and detect any unforeseen loss in CO2 containment. The monitoring program will include direct monitoring of the reservoir, and early-leak-detection monitoring directly above the primary confining zone. This preliminary modeling study described here focuses on hypothetical leakage scenarios into the first permeable unit above the primary confining zone (Ironton Sandstone) and is used to support assessment of early-leak detection capabilities. Future updates of the model will be used to assess potential impacts on the lowermost underground source of drinking water (Saint Peter Sandstone) for a range of theoretical leakage scenarios. This preliminary modeling evaluation considers both pressure response and geochemical signals in the overlying Ironton Sandstone. This model is independent of the FutureGen 2.0 reservoir model in that it does not simulate caprock discontinuities, faults, or failure scenarios. Instead this modeling effort is based on theoretical, volumetric-rate based leakage scenarios. The scenarios include leakage of 1% of the total injected CO2 mass, but spread out over different time periods (20, 100, and 500 years) with each case yielding a different mass flux (i.e., smaller mass fluxes for longer duration leakage cases]. A brine leakage scenario using a volumetric leakage similar to the 20 year 1% CO2 case was also considered. A framework for the comparison of the various cases was developed based on the exceedance of selected pressure and geochemical thresholds at different distances from the point of leakage and at different vertical positions within the Ironton Sandstone. These preliminary results, and results from an updated models that incorporate additional site-specific characterization data, support development/refinement of the monitoring system design.

  13. Design Support of an Above Cap-rock Early Detection Monitoring System using Simulated Leakage Scenarios at the FutureGen2.0 Site

    SciTech Connect (OSTI)

    Williams, Mark D. [Pacific Northwest National Laboratory; Richland Washington USA; Vermuel, Vince R. [Pacific Northwest National Laboratory; Richland Washington USA; Oostrom, Mart [Pacific Northwest National Laboratory; Richland Washington USA; Porse, Sean L. [Pacific Northwest National Laboratory; Richland Washington USA; Thorne, Paul D. [Pacific Northwest National Laboratory; Richland Washington USA; Szecsody, Jim E. [Pacific Northwest National Laboratory; Richland Washington USA; Horner, Jake A. [Pacific Northwest National Laboratory; Richland Washington USA; Gilmore, Tyler J. [Pacific Northwest National Laboratory; Richland Washington USA

    2014-12-31

    The FutureGen 2.0 Project will design and build a first-of-its-kind, near-zero emissions coal-fueled power plant with carbon capture and storage (CCS). To assess storage site performance and meet the regulatory requirements of the Class VI Underground Injection Control (UIC) Program for CO2 Geologic Sequestration, the FutureGen 2.0 project will implement a suite of monitoring technologies designed to evaluate CO2 mass balance and detect any unforeseen loss in CO2 containment. The monitoring program will include direct monitoring of the reservoir, and early-leak-detection monitoring directly above the primary confining zone. This preliminary modeling study described here focuses on hypothetical leakage scenarios into the first permeable unit above the primary confining zone (Ironton Sandstone) and is used to support assessment of early-leak detection capabilities. Future updates of the model will be used to assess potential impacts on the lowermost underground source of drinking water (Saint Peter Sandstone) for a range of theoretical leakage scenarios. This preliminary modeling evaluation considers both pressure response and geochemical signals in the overlying Ironton Sandstone. This model is independent of the FutureGen 2.0 reservoir model in that it does not simulate caprock discontinuities, faults, or failure scenarios. Instead this modeling effort is based on theoretical, volumetric-rate based leakage scenarios. The scenarios include leakage of 1% of the total injected CO2 mass, but spread out over different time periods (20, 100, and 500 years) with each case yielding a different mass flux (i.e., smaller mass fluxes for longer duration leakage cases]. A brine leakage scenario using a volumetric leakage similar to the 20 year 1% CO2 case was also considered. A framework for the comparison of the various cases was developed based on the exceedance of selected pressure and geochemical thresholds at different distances from the point of leakage and at different vertical positions within the Ironton Sandstone. These preliminary results, and results from an updated models that incorporate additional site-specific characterization data, support development/refinement of the monitoring system design.

  14. Design Support of an Above Cap-rock Early Detection Monitoring System using Simulated Leakage Scenarios at the FutureGen2.0 Site

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

    Williams, Mark D.; USA, Richland Washington; Vermuel, Vince R.; USA, Richland Washington; Oostrom, Mart; USA, Richland Washington; Porse, Sean L.; USA, Richland Washington; Thorne, Paul D.; USA, Richland Washington; et al

    2014-12-31

    The FutureGen 2.0 Project will design and build a first-of-its-kind, near-zero emissions coal-fueled power plant with carbon capture and storage (CCS). To assess storage site performance and meet the regulatory requirements of the Class VI Underground Injection Control (UIC) Program for CO2 Geologic Sequestration, the FutureGen 2.0 project will implement a suite of monitoring technologies designed to evaluate CO2 mass balance and detect any unforeseen loss in CO2 containment. The monitoring program will include direct monitoring of the reservoir, and early-leak-detection monitoring directly above the primary confining zone. This preliminary modeling study described here focuses on hypothetical leakage scenarios intomorethe first permeable unit above the primary confining zone (Ironton Sandstone) and is used to support assessment of early-leak detection capabilities. Future updates of the model will be used to assess potential impacts on the lowermost underground source of drinking water (Saint Peter Sandstone) for a range of theoretical leakage scenarios. This preliminary modeling evaluation considers both pressure response and geochemical signals in the overlying Ironton Sandstone. This model is independent of the FutureGen 2.0 reservoir model in that it does not simulate caprock discontinuities, faults, or failure scenarios. Instead this modeling effort is based on theoretical, volumetric-rate based leakage scenarios. The scenarios include leakage of 1% of the total injected CO2 mass, but spread out over different time periods (20, 100, and 500 years) with each case yielding a different mass flux (i.e., smaller mass fluxes for longer duration leakage cases]. A brine leakage scenario using a volumetric leakage similar to the 20 year 1% CO2 case was also considered. A framework for the comparison of the various cases was developed based on the exceedance of selected pressure and geochemical thresholds at different distances from the point of leakage and at different vertical positions within the Ironton Sandstone. These preliminary results, and results from an updated models that incorporate additional site-specific characterization data, support development/refinement of the monitoring system design.less

  15. LWR codes capability to address SFR BDBA scenarios: Modeling of the ABCOVE tests

    SciTech Connect (OSTI)

    Herranz, L. E.; Garcia, M.; Morandi, S.

    2012-07-01

    The sound background built-up in LWR source term analysis in case of a severe accident, make it worth to check the capability of LWR safety analysis codes to model accident SFR scenarios, at least in some areas. This paper gives a snapshot of such predictability in the area of aerosol behavior in containment. To do so, the AB-5 test of the ABCOVE program has been modeled with 3 LWR codes: ASTEC, ECART and MELCOR. Through the search of a best estimate scenario and its comparison to data, it is concluded that even in the specific case of in-containment aerosol behavior, some enhancements would be needed in the LWR codes and/or their application, particularly with respect to consideration of particle shape. Nonetheless, much of the modeling presently embodied in LWR codes might be applicable to SFR scenarios. These conclusions should be seen as preliminary as long as comparisons are not extended to more experimental scenarios. (authors)

  16. Toward Interactive Scenario Analysis and Exploration

    SciTech Connect (OSTI)

    Gayle, Thomas R.; Summers, Kenneth Lee; Jungels, John; Oppel III, Fred J.

    2015-01-01

    As Modeling and Simulation (M&S) tools have matured, their applicability and importance have increased across many national security challenges. In particular, they provide a way to test how something may behave without the need to do real world testing. However, current and future changes across several factors including capabilities, policy, and funding are driving a need for rapid response or evaluation in ways that many M&S tools cannot address. Issues around large data, computational requirements, delivery mechanisms, and analyst involvement already exist and pose significant challenges. Furthermore, rising expectations, rising input complexity, and increasing depth of analysis will only increase the difficulty of these challenges. In this study we examine whether innovations in M&S software coupled with advances in ''cloud'' computing and ''big-data'' methodologies can overcome many of these challenges. In particular, we propose a simple, horizontally-scalable distributed computing environment that could provide the foundation (i.e. ''cloud'') for next-generation M&S-based applications based on the notion of ''parallel multi-simulation''. In our context, the goal of parallel multi- simulation is to consider as many simultaneous paths of execution as possible. Therefore, with sufficient resources, the complexity is dominated by the cost of single scenario runs as opposed to the number of runs required. We show the feasibility of this architecture through a stable prototype implementation coupled with the Umbra Simulation Framework [6]. Finally, we highlight the utility through multiple novel analysis tools and by showing the performance improvement compared to existing tools.

  17. Scenario Analysis Meeting | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 -RobSSL INDepartment ofJuneScenario Analysis Meeting Scenario

  18. A CaseBased Approach to Knowledge Acquisition for DomainSpecific Sentence Analysis

    E-Print Network [OSTI]

    Cardie, Claire

    that a murder took place and the perpetrators of the crime were ``terrorists.'' This is not the case for sentence 2 --- the verb ``killed'' appears, but no murder has

  19. Performance-based assessment of daylight on tropical buildings- a case Study

    E-Print Network [OSTI]

    Szu Cheng, CHIEN

    2013-01-01

    Sustainability in the Tropics For the visual performance ofSustainability in the Tropics Table 3 Metrics conducted to assess dayliglzting performanceSustainability in the Tropics APPROACH Description of the case study model Daylight performance

  20. Radioactive waste management treatments: A selection for the Italian scenario

    SciTech Connect (OSTI)

    Locatelli, G. [Univ. of Lincoln, Lincoln School of Engineering, Brayford Pool - Lincoln LN6 7TS (United Kingdom); Mancini, M. [Politecnico di Milano, Dept. of Management, Economics and Industrial Engineering, Via Lambruschini 4/B, Milano (Italy); Sardini, M. [Politecnico di Milano, Dept. of Energy, Via Lambruschini 4, Milano (Italy)

    2012-07-01

    The increased attention for radioactive waste management is one of the most peculiar aspects of the nuclear sector considering both reactors and not power sources. The aim of this paper is to present the state-of-art of treatments for radioactive waste management all over the world in order to derive guidelines for the radioactive waste management in the Italian scenario. Starting with an overview on the international situation, it analyses the different sources, amounts, treatments, social and economic impacts looking at countries with different industrial backgrounds, energetic policies, geography and population. It lists all these treatments and selects the most reasonable according to technical, economic and social criteria. In particular, a double scenario is discussed (to be considered in case of few quantities of nuclear waste): the use of regional, centralized, off site processing facilities, which accept waste from many nuclear plants, and the use of mobile systems, which can be transported among multiple nuclear sites for processing campaigns. At the end the treatments suitable for the Italian scenario are presented providing simplified work-flows and guidelines. (authors)

  1. Advanced ST Plasma Scenario Simulations for NSTX

    SciTech Connect (OSTI)

    C.E. Kessel; E.J. Synakowski; D.A. Gates; R.W. Harvey; S.M. Kaye; T.K. Mau; J. Menard; C.K. Phillips; G. Taylor; R. Wilson; the NSTX Research Team

    2004-10-28

    Integrated scenario simulations are done for NSTX [National Spherical Torus Experiment] that address four primary milestones for developing advanced ST configurations: high {beta} and high {beta}{sub N} inductive discharges to study all aspects of ST physics in the high-beta regime; non-inductively sustained discharges for flattop times greater than the skin time to study the various current-drive techniques; non-inductively sustained discharges at high {beta} for flattop times much greater than a skin time which provides the integrated advanced ST target for NSTX; and non-solenoidal start-up and plasma current ramp-up. The simulations done here use the Tokamak Simulation Code (TSC) and are based on a discharge 109070. TRANSP analysis of the discharge provided the thermal diffusivities for electrons and ions, the neutral-beam (NB) deposition profile, and other characteristics. CURRAY is used to calculate the High Harmonic Fast Wave (HHFW) heating depositions and current drive. GENRAY/CQL3D is used to establish the heating and CD [current drive] deposition profiles for electron Bernstein waves (EBW). Analysis of the ideal-MHD stability is done with JSOLVER, BALMSC, and PEST2. The simulations indicate that the integrated advanced ST plasma is reachable, obtaining stable plasmas with {beta} {approx} 40% at {beta}{sub N}'s of 7.7-9, I{sub P} = 1.0 MA, and B{sub T} = 0.35 T. The plasma is 100% non-inductive and has a flattop of 4 skin times. The resulting global energy confinement corresponds to a multiplier of H{sub 98(y,2)} = 1.5. The simulations have demonstrated the importance of HHFW heating and CD, EBW off-axis CD, strong plasma shaping, density control, and early heating/H-mode transition for producing and optimizing these plasma configurations.

  2. Brazil's Biofuels Scenario: What are the Main Drivers Which will...

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

    Brazil's Biofuels Scenario: What are the Main Drivers Which will Shape Investments in the Long Term? Brazil's Biofuels Scenario: What are the Main Drivers Which will Shape...

  3. Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM...

    Office of Environmental Management (EM)

    Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results This presentation by...

  4. Integrating Electricity Subsector Failure Scenarios into a Risk...

    Energy Savers [EERE]

    Integrating Electricity Subsector Failure Scenarios into a Risk Assessment Methodology (December 2013) Integrating Electricity Subsector Failure Scenarios into a Risk Assessment...

  5. Integrated Market Modeling of Hydrogen Transition Scenarios with...

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

    Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Presentation by Paul Leiby of Oak...

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

    E-Print Network [OSTI]

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

    2013-01-01

    .3%, the normalized mean bias error (NMBE) is below 1.3% and the root-meansquare- error (RMSE) is below 16.6 kW. When the statistical criteria are calculated for all hours of the day, the CV-RMSE is 13.9%, the NMBE is 2.7% and the RMSE is 17.9 kW. The case study...

  7. The Case For Prediction-based Best-effort Real-time Systems

    E-Print Network [OSTI]

    Shewchuk, Jonathan

    be adjusted based on user-perceived quality. After defining this class of applications, we de- scribe by the Advanced Research Projects Agency and Rome Laboratory, Air Force Materiel Command, USAF, under agreement

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

    E-Print Network [OSTI]

    Haeffner, Melissa (Melissa Ann)

    2010-01-01

    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 ...

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

    E-Print Network [OSTI]

    Lee, Hee Min

    2005-11-01

    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 curtail skyrocketing...

  10. Determinants of Success for Community-based Tourism: The Case of Floating Markets in Thailand

    E-Print Network [OSTI]

    Vajirakachorn, Thanathorn

    2012-10-19

    observation as data collection tools. The fieldwork was conducted in Thailand during February June 2010. Amphawa and Bangnoi floating markets were evaluated based on the ten factors. Results show that Amphawa, a larger and longer developed destination...

  11. Localized change management in two cases : supply base cost escalation and obsolescence management

    E-Print Network [OSTI]

    Harris Robert J., Jr. (Robert Jerrell)

    2014-01-01

    There are several models for change available to modern organizations based on decades of research. This research tends to focus on broad changes, such as enterprise transformations. This thesis presents a model developed ...

  12. Strengths-Based Case Management: Implementation With High-Risk Youth

    E-Print Network [OSTI]

    Arnold, Elizabeth Mayfield; Walsh, Adam K.; Oldham, Michael S.; Rapp, Charles A.

    2007-01-01

    Few effective methods of intervention exist for youth at risk for negative life outcomes. One method used successfully with both adults with chronic mental illness and adults with substance abuse problems is strengths-based ...

  13. Managing Innovation: A Multidisciplinary Scenario Development Approach

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    prescribed innovation methods, inovation is as much about a social process and context as it is a systematic process, thus making it somewhat naturalistic in character [3,4]. How does one manage innovation used for military planning and by the petrochemical industry [6]. Scenarios allow information

  14. Life Cycle Assessment of Three Water Scenarios

    E-Print Network [OSTI]

    Keller, Arturo A.

    1 Life Cycle Assessment of Three Water Scenarios: Importation, Reclamation, and Desalination Erin and Environmental Engineering Arizona State University #12;Life Cycle Assessment Described by International Data analyzed and categorized Find impacts on planet and humans #12;Life Cycle Assessment Extraction

  15. Reading for Thursday Emissions scenario summary

    E-Print Network [OSTI]

    Schweik, Charles M.

    emissions, for year 2000 #12;USA CO2 emissions from fossil fuel combustion (2005) US EPA #12;#12;#12;Decreasing 13C strongly suggests that the source of atmospheric CO2 is fossil carbon #12;Line of evidence #1Reading for Thursday Emissions scenario summary: Read pages 3-6 IPCC Chapter 11 (Regional

  16. Supporting Data Collection in Complex Scenarios with

    E-Print Network [OSTI]

    Ulm, Universitt

    in their products. Such reports usually involve data from suppliers of the reporting company. Therefore, companies the suppliers of the suppliers, and so on. Figure 1 illustrates this scenario with three exemplified tiers of suppliers of a company. While having only two direct suppliers on tier one, the company also has eight

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

    E-Print Network [OSTI]

    Zhu, Chen

    2003-01-01

    attenuation at a mill tailings site Chen Zhu* Department of Geology and Planetary Science, University)-based transport model. The study site is a contaminated groundwater aquifer underneath a uranium mill tailings pond in the western USA. Advectivedispersivereactive transport is simulated for a 5-year period

  18. Web based map services for scientific tourism: a case study of eighteenth and nineteenth century Edinburgh.

    E-Print Network [OSTI]

    Scholefield, Kerrie

    2008-12-05

    The purpose of this project was to develop a web based map service for scientific tourism of eighteenth and nineteenth century Edinburgh. The service had the potential to be used for two key purposes: an educational guide and a virtual tourist guide...

  19. 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

  20. A design approach to a risk review for fuel cell-based distributed cogeneration systems

    E-Print Network [OSTI]

    Luthringer, Kristin Lyn

    2004-09-30

    A risk review of a fuel cell-based distributed co-generation (FC-Based DCG) system was conducted to identify and quantify the major technological system risks in a worst-case scenario. A risk review entails both a risk assessment and a risk...

  1. A new scenario framework for Climate Change Research: Scenario matrix architecture

    SciTech Connect (OSTI)

    Van Vuuren, Detlef; Kriegler, Elmar; O'Neill, Brian; Ebi, Kristie L.; Riahi, Keywan; Carter, Tim; Edmonds, James A.; Hallegatte, Stephane; Kram, Tom; Mathur, Ritu; Winkler, Harald

    2014-02-01

    In this paper, we present the scenario matrix architecture as part of the new scenario framework for climate change research. The matrix architecture focuses on a key question of current climate research, namely the identification of trade-offs and synergies (in terms of risks, costs and other consequences) of different adaptation and mitigation strategies. The framework has two main axes: 1) the level of forcing (as represented by the RCPs) and 2) different socio-economic reference pathways. The matrix can be used as a tool to guide new scenario development and analytical analysis. It can also be used as a heuristic tool for classifying new and existing scenarios for assessment. Key elements of the architecture, in particular the shared socio-economic reference pathways and the shared policy assumptions, are elaborated in other papers in this special issue.

  2. Hydrogen Delivery Scenario Analysis Model (HDSAM)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool Fits the Bill FinancingDepartment ofPowerScenario Analysis Model (HDSAM) (Argonne

  3. Aminoindazole PDK1 Inhibitors: A Case Study in Fragment-Based Drug Discovery

    SciTech Connect (OSTI)

    Medina, Jesus R.; Blackledge, Charles W.; Heerding, Dirk A.; Campobasso, Nino; Ward, Paris; Briand, Jacques; Wright, Lois; Axten, Jeffrey M.

    2012-05-29

    Fragment screening of phosphoinositide-dependent kinase-1 (PDK1) in a biochemical kinase assay afforded hits that were characterized and prioritized based on ligand efficiency and binding interactions with PDK1 as determined by NMR. Subsequent crystallography and follow-up screening led to the discovery of aminoindazole 19, a potent leadlike PDK1 inhibitor with high ligand efficiency. Well-defined structure-activity relationships and protein crystallography provide a basis for further elaboration and optimization of 19 as a PDK1 inhibitor.

  4. 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

    2014-01-01

    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.

  5. Bremsstrahlung and gamma ray lines in 3 scenarios of dark matter annihilation

    SciTech Connect (OSTI)

    Giacchino, Federica; Tytgat, Michel H.G. [Service de Physique Thorique, Universit Libre de Bruxelles, Boulevard du Triomphe, CP225, 1050 Brussels (Belgium); Lopez-Honorez, Laura, E-mail: federica.giacchino@ulb.ac.be, E-mail: llopezho@vub.ac.be, E-mail: mtytgat@ulb.ac.be [Theoretische Natuurkunde, Vrije Universiteit Brussel and The International Solvay Institutes, Pleinlaan 2, B-1050 Brussels (Belgium)

    2014-08-01

    Gamma ray spectral features are of interest for indirect searches of dark matter (DM). Following Barger et al. we consider 3 simple scenarios of DM that annihilates into Standard Model (SM) fermion pairs. Scenario 1 is a Majorana DM candidate coupled to a charged scalar, scenario 2 is a Majorana DM coupled to a charged gauge boson and scenario 3 is a real scalar DM coupled a charged vector-like fermion. As shown by Barger et al., these 3 scenarios share precisely the same internal Bremsstrahlung spectral signature into gamma rays. Their phenomenology is however distinct. In particular for annihilation into light SM fermions, in the chiral limit, the 2-body annihilation cross section is p-wave suppressed for the Majorana candidates while it is d-wave suppressed for the real scalar. In the present work we study the annihilation into 2 gammas, showing that these three scenarios have distinct, and so potentially distinguishable, spectral signatures into gamma rays. In the case of the real scalar candidate we provide a new calculation of the amplitude for annihilation into 2 gammas.

  6. An Experiment on Graph Analysis Methodologies for Scenarios

    SciTech Connect (OSTI)

    Brothers, Alan J.; Whitney, Paul D.; Wolf, Katherine E.; Kuchar, Olga A.; Chin, George

    2005-09-30

    Visual graph representations are increasingly used to represent, display, and explore scenarios and the structure of organizations. The graph representations of scenarios are readily understood, and commercial software is available to create and manage these representations. The purpose of the research presented in this paper is to explore whether these graph representations support quantitative assessments of the underlying scenarios. The underlying structure of the scenarios is the information that is being targeted in the experiment and the extent to which the scenarios are similar in content. An experiment was designed that incorporated both the contents of the scenarios and analysts graph representations of the scenarios. The scenarios content was represented graphically by analysts, and both the structure and the semantics of the graph representation were attempted to be used to understand the content. The structure information was not found to be discriminating for the content of the scenarios in this experiment; but, the semantic information was discriminating.

  7. Inflation in a two 3-form fields scenario

    SciTech Connect (OSTI)

    Kumar, K. Sravan; Marto, J.; Moniz, P. Vargas; Nunes, Nelson J. E-mail: jmarto@ubi.pt E-mail: pmoniz@ubi.pt

    2014-06-01

    A setting constituted by N 3-form fields, without any direct interaction between them, minimally coupled to gravity, is introduced in this paper as a framework to study the early evolution of the universe. We focus particularly on the two 3-forms case. An inflationary scenario is found, emerging from the coupling to gravity. More concretely, the fields coupled in this manner exhibit a complex interaction, mediated by the time derivative of the Hubble parameter. Our investigation is supported by means of a suitable choice of potentials, employing numerical methods and analytical approximations. In more detail, the oscillations on the small field limit become correlated, and one field is intertwined with the other. In this type of solution, a varying sound speed is present, together with the generation of isocurvature perturbations. The mentioned features allow to consider an interesting model, to test against observation. It is subsequently shown how our results are consistent with current CMB data (viz.Planck and BICEP2)

  8. Persisting cold extremes under 21st-century warming scenarios

    SciTech Connect (OSTI)

    Kodra, Evan A [ORNL; Steinhaeuser, Karsten J K [ORNL; Ganguly, Auroop R [ORNL

    2011-01-01

    Analyses of climate model simulations and observations reveal that extreme cold events are likely to persist across each land-continent even under 21st-century warming scenarios. The grid-based intensity, duration and frequency of cold extreme events are calculated annually through three indices: the coldest annual consecutive three-day average of daily maximum temperature, the annual maximum of consecutive frost days, and the total number of frost days. Nine global climate models forced with a moderate greenhouse-gas emissions scenario compares the indices over 2091 2100 versus 1991 2000. The credibility of model-simulated cold extremes is evaluated through both bias scores relative to reanalysis data in the past and multi-model agreement in the future. The number of times the value of each annual index in 2091 2100 exceeds the decadal average of the corresponding index in 1991 2000 is counted. The results indicate that intensity and duration of grid-based cold extremes, when viewed as a global total, will often be as severe as current typical conditions in many regions, but the corresponding frequency does not show this persistence. While the models agree on the projected persistence of cold extremes in terms of global counts, regionally, inter-model variability and disparity in model performance tends to dominate. Our findings suggest that, despite a general warming trend, regional preparedness for extreme cold events cannot be compromised even towards the end of the century.

  9. Technology Solutions Case Study: Apartment Compartmentalization with an Aerosol-Based Sealing Process

    SciTech Connect (OSTI)

    2015-07-01

    Air sealing of building enclosures is a difficult and time-consuming process. Current methods in new construction require laborers to physically locate small and sometimes large holes in multiple assemblies and then manually seal each of them. This research study by Building America team Consortium for Advanced Residential Buildings demonstrated the automated air sealing and compartmentalization of buildings through the use of an aerosolized sealant developed by the Western Cooling Efficiency Center at University of California Davis. CARB demonstrated this new technology application in a multifamily building in Queens, NY. The effectiveness of the sealing process was evaluated by three methods: air leakage testing of overall apartment before and after sealing, point-source testing of individual leaks, and pressure measurements in the walls of the target apartment during sealing. Aerosolized sealing was successful by several measures in this study. Many individual leaks that are labor-intensive to address separately were well sealed by the aerosol particles. In addition, many diffuse leaks that are difficult to identify and treat were also sealed. The aerosol-based sealing process resulted in an average reduction of 71% in air leakage across three apartments and an average apartment airtightness of 0.08 CFM50/SF of enclosure area.

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

    SciTech Connect (OSTI)

    Hu, Andrew; Fan, Tai-Hsi; Katsaras, John; Xia, Yan; Li, Ming; Nieh, Mu-Ping

    2014-01-01

    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.

  11. An Integrated Scenario-Based Approach for Robust Aircraft Routing ...

    E-Print Network [OSTI]

    2013-03-12

    Cheng-Lung Wu. School of Aviation, University of New South Wales, Sydney NSW 2052, Australia. Abstract. For reasons of tractability, the airline scheduling...

  12. Control Based Sensor Management for a Multiple Radar Monitoring Scenario

    E-Print Network [OSTI]

    Baclawski, Kenneth B.

    . The emitters exhibit a quasi-periodic radiation pattern, each in a different frequency band metaphor of software development, we map this problem onto a control architecture with one system that monitor sources of electronic radiation in the environment (such as radars). The sources emit radiation

  13. Geographically Based Hydrogen Demand and Infrastructure Rollout Scenario

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12,Executive Compensation References: FARWashersGenSysContractors

  14. Scenario Evaluation and Regionalization Analysis (SERA) Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool FitsProjectData Dashboard RutlandSTEAB's1-E Wholesale Powerand beEnergyScenario

  15. Biomass Scenario Model | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-Gas Technologies, LLC JumpBiofameData BookScenario Model Jump

  16. 2015 Standard Scenarios Annual Report: U.S. Electric Sector Scenario Exploration

    SciTech Connect (OSTI)

    Sullivan, Patrick; Cole, Wesley; Blair, Nate; Lantz, Eric; Krishnan, Venkat; Mai, Trieu; Mulcahy, David; Porro, Gian

    2015-07-16

    This report is one of several products resulting from an initial effort to provide a consistent set of technology cost and performance data and to define a conceptual and consistent scenario framework that can be used in the National Renewable Energy Laboratorys (NRELs) future analyses. The long-term objective of this effort is to identify a range of possible futures of the U.S. electricity sector in which to consider specific energy system issues through (1) defining a set of prospective scenarios that bound ranges of key technology, market, and policy assumptions and (2) assessing these scenarios in NRELs market models to understand the range of resulting outcomes, including energy technology deployment and production, energy prices, and carbon dioxide (CO2) emissions.

  17. Questioning Inevitability of Energy Pathways: Alternative Energy Scenarios for California

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Questioning Inevitability of Energy Pathways: Alternative Energy Scenarios for California May 21.6.4 Alternative Scenario 3 Patriotic Energy Independence Section 3: Developing the Scenario Model and Examining, 2002 by Rebecca Ghanadan rebeccag@socrates.berkeley.edu The Energy and Resources Group University

  18. Roadmap for Real World Internet applications Socioeconomic scenarios

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Roadmap for Real World Internet applications Socioeconomic scenarios and design recommendations that is feasible to roadmap the dynamic deployment of Real World Internet applications. A multi- faceted scenarios. These scenarios are used as a roadmap for the system and architecture deployment. The application

  19. Scenario Generation for Price Forecasting in Restructured Wholesale Power Markets

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    markets could aid in the design of appropriate price forecasting tools for such markets. Scenario1 Scenario Generation for Price Forecasting in Restructured Wholesale Power Markets Qun Zhou, restructured wholesale power markets, scenario generation, ARMA model, moment-matching method I. INTRODUCTION

  20. The Future of Scenarios: State Science Fiction Peter Galison

    E-Print Network [OSTI]

    Galison, Peter L.

    3 The Future of Scenarios: State Science Fiction Peter Galison Abstract In the heat of the Cold War begin and escalate, or be blocked. "The Future of Scenarios" sketches this history, from the first,000 years in the future. Keywords Future, futurology, 10,000 years, State science fiction, scenario, nuclear

  1. Scenario Analysis of Pedestrian Flow in Public Amir Sohrab Sahaleh

    E-Print Network [OSTI]

    Bierlaire, Michel

    Scenario Analysis of Pedestrian Flow in Public Spaces Amir Sohrab Sahaleh Michel Bierlaire Bilal Farooq Antonin Danalet Flurin Silvan Hnseler STRC 2012 May 2012 #12;Scenario Analysis of Pedestrian Flow in Public Spaces May 2012 Scenario Analysis of Pedestrian Flow in Public Spaces Amir Sohrab Sahaleh

  2. The jamming scenario - an introduction and outlook

    E-Print Network [OSTI]

    Andrea J. Liu; Sidney R. Nagel; Wim van Saarloos; Matthieu Wyart

    2011-01-27

    The jamming scenario of disordered media, formulated about 10 years ago, has in recent years been advanced by analyzing model systems of granular media. This has led to various new concepts that are increasingly being explored in in a variety of systems. This chapter contains an introductory review of these recent developments and provides an outlook on their applicability to different physical systems and on future directions. The first part of the paper is devoted to an overview of the findings for model systems of frictionless spheres, focussing on the excess of low-frequency modes as the jamming point is approached. Particular attention is paid to a discussion of the cross-over frequency and length scales that govern this approach. We then discuss the effects of particle asphericity and static friction, the applicability to bubble models for wet foams in which the friction is dynamic, the dynamical arrest in colloids, and the implications for molecular glasses.

  3. Overview of the Biomass Scenario Model

    SciTech Connect (OSTI)

    Peterson, Steve

    2015-09-01

    This report describes the structure of the October 2012 version of the Biomass Scenario Model (BSM) in considerable detail, oriented towards readers with a background or interest in the underlying modeling structures. Readers seeking a less-detailed summary of the BSM may refer to Peterson (2013). BSM aims to provide a framework for exploring the potential contribution of biofuel technologies to the transportation energy supply for the United States over the next several decades. The model has evolved significantly from the prototype developed as part of the Role of Biomass in America" tm s Energy Future (RBAEF) project. BSM represents the supply chain surrounding conversion pathways for multiple fuel products, including ethanol, butanol, and infrastructure-compatible biofuels such as diesel, jet fuel, and gasoline.

  4. Emergence in Holographic Scenarios for Gravity

    E-Print Network [OSTI]

    Dennis Dieks; Jeroen van Dongen; Sebastian de Haro

    2015-09-10

    'Holographic' relations between theories have become an important theme in quantum gravity research. These relations entail that a theory without gravity is equivalent to a gravitational theory with an extra spatial dimension. The idea of holography was first proposed in 1993 by Gerard 't Hooft on the basis of his studies of evaporating black holes. Soon afterwards the holographic 'AdS/CFT' duality was introduced, which since has been intensively studied in the string theory community and beyond. Recently, Erik Verlinde has proposed that even Newton's law of gravitation can be related holographically to the `thermodynamics of information' on screens. We discuss these scenarios, with special attention to the status of the holographic relation in them and to the question of whether they make gravity and spacetime emergent. We conclude that only Verlinde's scheme straightfowardly instantiates emergence. However, assuming a non-standard interpretation of AdS/CFT may create room for the emergence of spacetime and gravity there as well.

  5. Preliminary identification of potentially disruptive scenarios at the Greater Confinement Disposal Facility, Area 5 of the Nevada Test Site

    SciTech Connect (OSTI)

    Guzowski, R.V.; Newman, G.

    1993-12-01

    The Greater Confinement Disposal location is being evaluated to determine whether defense-generated transuranic waste buried at this location complies with the Containment Requirements established by the US Environmental Protection Agency. One step in determining compliance is to identify those combinations of events and processes (scenarios) that define possible future states of the disposal system for which performance assessments must be performed. An established scenario-development procedure was used to identify a comprehensive set of mutually exclusive scenarios. To assure completeness, 761 features, events, processes, and other listings (FEPS) were compiled from 11 references. This number was reduced to 205 primarily through the elimination of duplications. The 205 FEPs were screened based on site-specific, goal-specific, and regulatory criteria. Four events survived screening and were used in preliminary scenario development: (1) exploratory drilling penetrates a GCD borehole, (2) drilling of a withdrawal/injection well penetrates a GCD borehole, (3) subsidence occurs at the RWMS, and (4) irrigation occurs at the RWMS. A logic diagram was used to develop 16 scenarios from the four events. No screening of these scenarios was attempted at this time. Additional screening of the currently retained events and processes will be based on additional data and information from site-characterization activities. When screening of the events and processes is completed, a final set of scenarios will be developed and screened based on consequence and probability of occurrence.

  6. Globecom 2012, Anaheim, California, USA, December 2012 Hemispherical Lens Based Imaging Receiver for

    E-Print Network [OSTI]

    Sekercioglu, Y. Ahmet

    density is also calculated to show the received optical power distributions for the case of four LED.Sekercioglu, Jean.Armstrong}@monash.edu Abstract--White lighting LED based systems are emerging as an important form significant spatial diversity for typical MIMO visible light scenarios. Numerical results are provided

  7. Pedestrian detection in low resolution videos can be challenging. In outdoor surveillance scenarios, the size of

    E-Print Network [OSTI]

    Hoff, William A.

    Abstract Pedestrian detection in low resolution videos can be challenging. In outdoor surveillance scenarios, the size of pedestrians in the images is often very small (around 20 pixels tall). The most common and successful approaches for single frame pedestrian detection use gradient-based features

  8. Table S1: (a) Aircraft, ground and satellite based instruments, the aerosol properties used from these instruments and their availability on the two case study days.

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    properties used from these instruments and their availability on the two case studyTable S1: (a) Aircraft, ground and satellite based instruments, the aerosol de Monterrey + Y/N=> Yes/No => AOD observation is/is not available

  9. AI Communications The European Journal of Artificial Intelligence, 9 (3) 1996, pp. 109-116 Relating Case-Based Problem Solving and Learning Methods

    E-Print Network [OSTI]

    Aamodt, Agnar

    -116 Relating Case-Based Problem Solving and Learning Methods to Task and Domain Characteristics: Towards (CBR) over most other methods is its inherent combination of problem solving with sustained learning through problem solving experience. This is therefore a particularly important topic of study

  10. 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

  11. An unstructured C-grid based method for 3-D global ocean dynamics: Free-surface formulations and tidal test cases

    E-Print Network [OSTI]

    Peltier, W. Richard

    and tidal test cases G.R. Stuhne *, W.R. Peltier Department of Physics, University of Toronto, 60 St. George numerical framework based on an energy-con- serving Arakawa C-grid discretization could be applied to ocean models. Tidal simulations are much more manageable that full-fledged OGCM climate simulations, being

  12. 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-

    2012-08-22

    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...

  13. ACCELERATOR TRANSMUTATION OF WASTE TECHNOLOGY AND IMPLEMENTATION SCENARIOS

    SciTech Connect (OSTI)

    D. BELLER; G. VAN TUYLE

    2000-11-01

    During 1999, the U.S. Department of Energy, in conjunction with its nuclear laboratories, a national steering committee, and a panel of world experts, developed a roadmap for research, development, demonstration, and deployment of Accelerator-driven Transmutation of Waste (ATW). The ATW concept that was examined in this roadmap study was based on that developed at the Los Alamos National Laboratory (LANL) during the 1990s. The reference deployment scenario in the Roadmap was developed to treat 86,300 tn (metric tonnes initial heavy metal) of spent nuclear fuel that will accumulate through 2035 from existing U.S. nuclear power plants (without license extensions). The disposition of this spent nuclear reactor fuel is an issue of national importance, as is disposition of spent fuel in other nations. The U.S. program for the disposition of this once-through fuel is focused to characterize a candidate site at Yucca Mountain, Nevada for a geological repository for spent fuel and high-level waste. The ATW concept is being examined in the U.S. because removal of plutonium minor actinides, and two very long-lived isotopes from the spent fuel can achieve some important objectives. These objectives include near-elimination of plutonium, reduction of the inventory and mobility of long-lived radionuclides in the repository, and use of the remaining energy content of the spent fuel to produce power. The long-lived radionuclides iodine and technetium have roughly one million year half-lives, and they are candidates for transport into the environment via movement of ground water. The scientists and engineers who contributed to the Roadmap Study determined that the ATW is affordable, doable, and its deployment would support all the objectives. We report the status of the U.S. ATW program describe baseline and alternate technologies, and discuss deployment scenarios to support the existing U.S. nuclear capability and/or future growth with a variety of new fuel cycles.

  14. A Method for Evaluating Fire After Earthquake Scenarios for Single...

    Office of Environmental Management (EM)

    public release; distribution I unlimited. Title: A Method for Evaluating Fire After Earthquake Scenarios for Single Buildings Authors: Elizabeth J. Kelly and Raymond N. Tell...

  15. Biomass Scenario Model Documentation: Data and References Lin...

    Office of Scientific and Technical Information (OSTI)

    Documentation: Data and References Lin, Y.; Newes, E.; Bush, B.; Peterson, S.; Stright, D. 09 BIOMASS FUELS BIOMASS SCENARIO MODEL; BSM; BIOMASS; BIOFUEL; MODEL; DATA; REFERENCES;...

  16. Development of Sea Level Rise Scenarios for Climate Change Assessments...

    Open Energy Info (EERE)

    Development of Sea Level Rise Scenarios for Climate Change Assessments of the Mekong Delta, Vietnam Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Development of Sea...

  17. Formulating Climate Change Scenarios to Inform Climate - Resilient...

    Open Energy Info (EERE)

    Formulating Climate Change Scenarios to Inform Climate - Resilient Development Strategies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Formulating Climate Change...

  18. Mapping Climate Change Vulnerability and Impact Scenarios - A...

    Open Energy Info (EERE)

    Mapping Climate Change Vulnerability and Impact Scenarios - A Guidebook for Sub-national Planners Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Mapping Climate Change...

  19. Emergent Universe with Exotic Matter in Brane World Scenario

    E-Print Network [OSTI]

    Ujjal Debnath; Subenoy Chakraborty

    2011-04-09

    In this work, we have examined the emergent scenario in brane world model for phantom and tachyonic matter. For tachyonic matter field we have obtained emergent scenario is possible for closed, open and at model of the universe with some restriction of potential. For normal scalar field the emergent scenario is possible only for closed model and the result is identical with the work of Ellis et al [2], but for phantom field the emergent scenario is possible for closed, open and at model of the universe with some restriction of potential.

  20. Alternative Fuel Infrastructure Expansion: Costs, Resources, Production Capacity, and Retail Availability for Low-Carbon Scenarios

    Broader source: Energy.gov [DOE]

    The petroleum-based transportation fuel system is complex and highly developed, in contrast to the nascent low-petroleum, low-carbon alternative fuel system. This report examines how expansion of the low-carbon transportation fuel infrastructure could contribute to deep reductions in petroleum use and greenhouse gas (GHG) emissions across the U.S. transportation sector. Three low-carbon scenarios, each using a different combination of low-carbon fuels, were developed to explore infrastructure expansion trends consistent with a study goal of reducing transportation sector GHG emissions to 80% less than 2005 levels by 2050.These scenarios were compared to a business-as-usual (BAU) scenario and were evaluated with respect to four criteria: fuel cost estimates, resource availability, fuel production capacity expansion, and retail infrastructure expansion.

  1. Scenarios of Global Municipal Water-Use Demand Projections over the 21st Century

    SciTech Connect (OSTI)

    Hejazi, Mohamad I.; Edmonds, James A.; Chaturvedi, Vaibhav; Davies, Evan; Eom, Jiyong

    2013-03-06

    This paper establishes three future projections of global municipal water use to the end of the 21st century: A reference business-as usual (BAU) scenario, a High Technological Improvement (High Tech) scenario and a Low Technological Improvement (Low Tech) scenario. A global municipal water demand model is constructed using global water use statistics at the country-scale, calibrated to the base year of 2005, and simulated to the end of the 21st century. Since the constructed water demand model hinges on socioeconomic variables (population, income), water price, and end-use technology and efficiency improvement rates, projections of those input variables are adopted to characterize the uncertainty in future water demand estimates. The water demand model is linked to the Global Change Assessment Model (GCAM), a global change integrated assessment model. Under the reference scenario, the global total water withdrawal increases from 466 km3/year in 2005 to 941 km3/year in 2100,while withdrawals in the high and low tech scenarios are 321 km3/ year and 2000 km3/ year, respectively. This wide range (321-2000 km3/ year) indicates the level of uncertainty associated with such projections. The simulated global municipal demand projections are most sensitive to population and income projections, then to end-use technology and efficiency projections, and finally to water price. Thus, using water price alone as a policy measure to reduce municipal water use may substantiate the share of municipal water price of peoples annual incomes.

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

    E-Print Network [OSTI]

    Hllermeier, 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

  3. Hawaii Clean Energy Initiative Scenario Analysis

    Office of Energy Efficiency and Renewable Energy (EERE)

    Analysis of potential policy options to help the state reach the 70% Hawaii Clean Energy Initiative (HCEI) goal, including possible pathways to attain the goal based on currently available technology.

  4. 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)

    2008-01-01

    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 ...

  5. Current Status and Future Scenarios of Residential Building

    E-Print Network [OSTI]

    a detailed, bottom-up analysis of residential building energy consumption in China using data from a wideLBNL-2416E Current Status and Future Scenarios of Residential Building Energy Consumption in China and Future Scenarios of Residential Building Energy Consumption in China Nan Zhou*, Masaru Nishida

  6. Security Implications of Typical Grid Computing Usage Scenarios Marty Humphrey

    E-Print Network [OSTI]

    Thompson, Mary R.

    Security Implications of Typical Grid Computing Usage Scenarios Marty Humphrey Computer Science. A broader goal of these scenarios are to increase the awareness of security issues in Grid Computing. 1 easy and secure ac- cess to the Grid's diverse resources. Infrastructure software such as Legion [6

  7. Future of the Lakes Scenarios for the Future of

    E-Print Network [OSTI]

    a project of the Center for Limnology University of Wisconsin Madison and the Resilience Alliance More as a type of war game analysis. Scenario planning later became a part of business planning. The oil company during and after the world oil price crises in the 1970s. More recently, scenarios have been used

  8. Low and high energy phenomenology of quark-lepton complementarity scenarios

    SciTech Connect (OSTI)

    Hochmuth, Kathrin A. [Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut), Foehringer Ring 6, D-80805 Munich (Germany); Rodejohann, Werner [Physik-Department, Technische Universitaet Muenchen, James-Franck-Strasse, D-85748 Garching (Germany)

    2007-04-01

    We conduct a detailed analysis of the phenomenology of two predictive seesaw scenarios leading to quark-lepton complementarity. In both cases we discuss the neutrino mixing observables and their correlations, neutrinoless double beta decay and lepton flavor violating decays such as {mu}{yields}e{gamma}. We also comment on leptogenesis. The first scenario is disfavored on the level of one to two standard deviations, in particular, due to its prediction for |U{sub e3}|. There can be resonant leptogenesis with quasidegenerate heavy and light neutrinos, which would imply sizable cancellations in neutrinoless double beta decay. The decays {mu}{yields}e{gamma} and {tau}{yields}{mu}{gamma} are typically observable unless the SUSY masses approach the TeV scale. In the second scenario leptogenesis is impossible. It is, however, in perfect agreement with all oscillation data. The prediction for {mu}{yields}e{gamma} is in general too large, unless the SUSY masses are in the range of several TeV. In this case {tau}{yields}e{gamma} and {tau}{yields}{mu}{gamma} are unobservable.

  9. arXiv:1307.5640v2[math.OC]18Nov2013 The Scenario Approach for Stochastic Model Predictive

    E-Print Network [OSTI]

    Frei, Christoph

    or load mitigation for wind turbines. For such sys- tems, a new control method of Scenario-Based ModelarXiv:1307.5640v2[math.OC]18Nov2013 The Scenario Approach for Stochastic Model Predictive Control. In the presence of model uncertainties or disturbances, for many control applications it suffices to keep

  10. Scenarios Evaluation Tool for Chlorinated Solvent MNA

    SciTech Connect (OSTI)

    Vangelas, Karen; Michael J. Truex; Charles J. Newell; Brian Looney

    2007-02-28

    Over the past three decades, much progress has been made in the remediation of chlorinated solvents from the subsurface. Yet these pervasive contaminants continue to present a significant challenge to the U.S. Department of Energy (DOE), other federal agencies, and other public and private organizations. The physical and chemical properties of chlorinated solvents make it difficult to rapidly reach the low concentrations typically set as regulatory limits. These technical challenges often result in high costs and long remediation time frames. In 2003, the DOE through the Office of Environmental Management funded a science-based technical project that uses the U.S. Environmental Protection Agency's technical protocol (EPA, 1998) and directives (EPA, 1999) on Monitored Natural Attenuation (MNA) as the foundation on which to introduce supporting concepts and new scientific developments that will support remediation of chlorinated solvents based on natural attenuation processes. This project supports the direction in which many site owners want to move to complete the remediation of their site(s), that being to complete the active treatment portion of the remedial effort and transition into MNA. The overarching objective of the effort was to examine environmental remedies that are based on natural processes--remedies such as Monitored Natural Attenuation (MNA) or Enhanced Attenuation (EA). The research program did identify several specific opportunities for advances based on: (1) mass balance as the central framework for attenuation based remedies, (2) scientific advancements and achievements during the past ten years, (3) regulatory and policy development and real-world experience using MNA, and (4) exploration of various ideas for integrating attenuation remedies into a systematic set of ''combined remedies'' for contaminated sites. These opportunities are summarized herein and are addressed in more detail in referenced project documents and journal articles, as well as in the technical and regulatory documents being developed within the ITRC.

  11. SCENARIOS EVALUATION TOOL FOR CHLORINATED SOLVENT MNA

    SciTech Connect (OSTI)

    Vangelas, K; Brian02 Looney, B; Michael J. Truex; Charles J. Newell

    2006-08-16

    Over the past three decades, much progress has been made in the remediation of chlorinated solvents from the subsurface. Yet these pervasive contaminants continue to present a significant challenge to the U.S. Department of Energy (DOE), other federal agencies, and other public and private organizations. The physical and chemical properties of chlorinated solvents make it difficult to rapidly reach the low concentrations typically set as regulatory limits. These technical challenges often result in high costs and long remediation time frames. In 2003, the DOE through the Office of Environmental Management funded a science-based technical project that uses the U.S. Environmental Protection Agency's technical protocol (EPA, 1998) and directives (EPA, 1999) on Monitored Natural Attenuation (MNA) as the foundation on which to introduce supporting concepts and new scientific developments that will support remediation of chlorinated solvents based on natural attenuation processes. This project supports the direction in which many site owners want to move to complete the remediation of their site(s), that being to complete the active treatment portion of the remedial effort and transition into MNA. The overarching objective of the effort was to examine environmental remedies that are based on natural processes--remedies such as Monitored Natural Attenuation (MNA) or Enhanced Attenuation (EA). The research program did identify several specific opportunities for advances based on: (1) mass balance as the central framework for attenuation based remedies, (2) scientific advancements and achievements during the past ten years, (3) regulatory and policy development and real-world experience using MNA, and (4) exploration of various ideas for integrating attenuation remedies into a systematic set of ''combined remedies'' for contaminated sites. These opportunities are summarized herein and are addressed in more detail in referenced project documents and journal articles, as well as in the technical and regulatory documents being developed within the ITRC. Three topic areas were identified for development during this project. These areas are: mass balance, Enhanced Attenuation (EA), and new characterization and monitoring tools and approaches to support MNA and EA. Each of these topics is documented in stand alone reports, WSRC-STI-2006-00082, WSRC-STI-2006-00083, and WSRC-STI-2006-00084, respectively. In brief, the mass balance efforts are examining methods and tools to allow a site to be evaluated in terms of a system where the inputs and processes within the system are compared to the outputs from the system, as well as understanding what attenuation processes may be occurring and how likely they are to occur within a system. Enhanced Attenuation is a new concept that is a transition step between primary treatments and MNA, when the natural attenuation processes are not sufficient to allow direct transition from the primary treatment to MNA. EA technologies are designed to either boost the level of the natural attenuation processes or decrease the loading of contaminants to the system for a period of time sufficient to allow the remedial goals to be met over the long-term. For characterization and monitoring, a phased approach based on documenting the site specific mass balance was developed. Tools and techniques to support the approach included direct measures of the biological processes and various tools to support cost-effective long-term monitoring of systems where the natural attenuation processes are the main treatment remedies. The effort revealed opportunities for integrating attenuation mechanisms into a systematic set of ''combined remedies'' for contaminated sites.

  12. 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.

    1997-03-01

    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.

  13. Smoothed Particle Hydrodynamics simulations of the core-degenerate scenario for Type Ia supernovae

    E-Print Network [OSTI]

    Aznar-Sigun, G; Lorn-Aguilar, P; Soker, N; Kashi, A

    2015-01-01

    The core-degenerate (CD) scenario for type Ia supernovae (SN Ia) involves the merger of the hot core of an asymptotic giant branch (AGB) star and a white dwarf, and might contribute a non-negligible fraction of all thermonuclear supernovae. Despite its potential interest, very few studies, and based on only crude simplifications, have been devoted to investigate this possible scenario, compared with the large efforts invested to study some other scenarios. Here we perform the first three-dimensional simulations of the merger phase, and find that this process can lead to the formation of a massive white dwarf, as required by this scenario. We consider two situations, according to the mass of the circumbinary disk formed around the system during the final stages of the common envelope phase. If the disk is massive enough, the stars merge on a highly eccentric orbit. Otherwise, the merger occurs after the circumbinary disk has been ejected and gravitational wave radiation has brought the stars close to the Roche...

  14. Earthquake scenarios and seismic input for cultural heritage: applications to the cities of Rome and Florence

    E-Print Network [OSTI]

    Romanelli, Fabio

    2015-01-01

    For historical buildings and monuments, i.e. when considering time intervals of about a million year (we do not want to loose cultural heritage), the applicability of standard estimates of seismic hazard is really questionable. A viable alternative is represented by the use of the scenario earthquakes, characterized at least in terms of magnitude, distance and faulting style, and by the treatment of complex source processes. Scenario-based seismic hazard maps are purely based on geophysical and seismotectonic features of a region and take into account the occurrence frequency of earthquakes only for their classification into exceptional (catastrophic), rare (disastrous), sporadic (very strong), occasional (strong) and frequent. Therefore they may provide an upper bound for the ground motion levels to be expected for most regions of the world, more appropriate than probabilities of exceedance in view of the long time scales required for the protection of historical buildings. The neo-deterministic approach nat...

  15. Innovative Business Cases for Energy Storage In a Restructured Electricity Marketplace, A Study for the DOE Energy Storage Systems Program

    SciTech Connect (OSTI)

    IANNUCCI, JOE; EYER, JIM; BUTLER, PAUL C.

    2003-02-01

    This report describes the second phase of a project entitled ''Innovative Business Cases for Energy Storage in a Restructured Electricity Marketplace''. During part one of the effort, nine ''Stretch Scenarios'' were identified. They represented innovative and potentially significant uses of electric energy storage. Based on their potential to significantly impact the overall energy marketplace, the five most compelling scenarios were identified. From these scenarios, five specific ''Storage Market Opportunities'' (SMOs) were chosen for an in-depth evaluation in this phase. The authors conclude that some combination of the Power Cost Volatility and the T&D Benefits SMOs would be the most compelling for further investigation. Specifically, a combination of benefits (energy, capacity, power quality and reliability enhancement) achievable using energy storage systems for high value T&D applications, in regions with high power cost volatility, makes storage very competitive for about 24 GW and 120 GWh during the years of 2001 and 2010.

  16. Mock scenarios prepare linemen for emergencies in the field

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

    was taking in air through the wound. When this happens, air puts extra pressure on the lungs, and the lung can collapse. It's a life threatening scenario, but the Kalispell crew...

  17. Comprehensive Scenarios of Millennial Timescale Carbon Cycle and Climate

    E-Print Network [OSTI]

    Williamson, Mark

    Cyr-1 (high) Land C sink = 1.1 GtCyr-1 (low) Idealised long-term fossil fuel emissions scenarios: ~1-Science: Trevor Cooper-Chadwick, Simon Cox, John Darlington, Murtaza Gulamali, Steven Newhouse, Andrew Price, Gang

  18. Renewable Energy Executive Summary High-Yield Scenario

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

    Efficiency & Renewable Energy Executive Summary High-Yield Scenario Workshop Series Report INLEXT-10-18930 December 2009 The 2005 Billion-Ton Study a (BTS) esti- mates the amount...

  19. A Method for Evaluating Fire after Earthquake Scenarios for Single...

    Office of Environmental Management (EM)

    dissemination prohibited U N C L A S S I F I E D A Method for Evaluating Fire After Earthquake Scenarios for Single Buildings Elizabeth J. Kelly and Raymond N. Tell, LANL U.S....

  20. How to Identify leading indicators for scenario monitoring

    E-Print Network [OSTI]

    Xu, Xia, M. Eng. Massachusetts Institute of Technology

    2014-01-01

    Being able to quickly adapt to changes in the business environment has been widely acknowledged as essential for sustainable success by business leaders. Scenario planning is recognized as an effective tool used to explore ...

  1. Community Solar Scenario Tool: Planning for a Fruitful Solar Garden

    Office of Energy Efficiency and Renewable Energy (EERE)

    As part of a Do-It-Yourself Solar Market Analysis summer series, NREL's Solar Technical Assistance Team (STAT) is presenting a live webinar titled, "Community Solar Scenario Tool: Planning for a...

  2. Microsoft Word - Scenario A w Amendments.doc

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

    the Prepay RFO that would need to be filled out if an Interested Party were to make an Offer. While BPA has attempted to make these scenarios as accurate as possible, it is solely...

  3. Microsoft Word - Scenario C w Amendments.doc

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

    the Prepay RFO that would need to be filled out if an Interested Party were to make an Offer. While BPA has attempted to make these scenarios as accurate as possible, it is solely...

  4. Microsoft Word - Scenario E w Amendments.doc

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

    the Prepay RFO that would need to be filled out if an Interested Party were to make an Offer. While BPA has attempted to make these scenarios as accurate as possible, it is solely...

  5. Microsoft Word - Scenario D w Amendments.doc

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

    the Prepay RFO that would need to be filled out if an Interested Party were to make an Offer. While BPA has attempted to make these scenarios as accurate as possible, it is solely...

  6. Microsoft Word - Scenario B w Amendments.doc

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

    the Prepay RFO that would need to be filled out if an Interested Party were to make an Offer. While BPA has attempted to make these scenarios as accurate as possible, it is solely...

  7. CLIMATE CHANGE AND SEA LEVEL RISE SCENARIOS FOR CALIFORNIA

    E-Print Network [OSTI]

    CLIMATE CHANGE AND SEA LEVEL RISE SCENARIOS FOR CALIFORNIA VULNERABILITY AND ADAPTATION ASSESSMENT A White Paper from the California Energy Commission's California Climate Change Center for Climate Model Diagnosis and Intercomparison and the World Climate Research Program (WCRP) Working Group

  8. CLIMATE CHANGE SCENARIOS FOR THE SAN FRANCISCO REGION

    E-Print Network [OSTI]

    CLIMATE CHANGE SCENARIOS FOR THE SAN FRANCISCO REGION A White Paper from the California Energy Commission's California Climate Change Center JULY 2012 CEC5002012042 Prepared for: California for useful discussion and downscaling information. For global climate model simulations, the authors

  9. Biomass Scenario Model, BETO Analysis Platform Peer Review (Presentati...

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

    bio-oil techno- economic analyses o Aviation biofuels and the European Union emissions trading system (ETS) o Light-duty-vehicle (LDV) ethanol-demand scenario analysis o Long...

  10. 634 IEEE TRANSACTIONS ON ROBOTICS, VOL. 25, NO. 3, JUNE 2009 Case Studies of Musculoskeletal-Simulation-Based

    E-Print Network [OSTI]

    Krovi, Venkat

    -Simulation-Based Rehabilitation Program Evaluation Leng-Feng Lee, Madusudanan S. Narayanan, Srikanth Kannan, Frank Mendel of userdevice ergonomics; 2) adjustable device settings; and 3) exercise regimen parameters; to achieve-based design, to permit therapists to rapidly evaluate and sys- tematically customize rehabilitation programs

  11. Application of Well-Based Surrogate Reservoir Models (SRMs) to Two Offshore Fields in Saudi Arabia, Case Study

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE 153845 Application of Well-Based Surrogate Reservoir Models (SRMs) to Two Offshore Fields production and pressure changes in the reservoir. Application of well-based SRM to two offshore fields of the SRM using blind simulation runs. Introduction The two offshore fields that are the subject

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

    E-Print Network [OSTI]

    Alagaraja, Meera

    2012-02-14

    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...

  13. PF coil voltage optimization for start-up scenarios in air core tokamaks

    SciTech Connect (OSTI)

    Albanese, R.; Martone, R.; Ambrosino, G.; Pironti, A.

    1994-09-01

    The basic features of a procedure for the optimization of the plasma scenario in an air core tokamak are presented. The method takes into account the eddy currents in the passive conducting structures. The problem is reduced to the synthesis of time-varying magnetic field. The solution of this inverse electromagnetic problem is carried out by means of an optimization procedure based on the receding horizon approach. The paper includes an example of application to the ITER tokamak.

  14. THE SOCIAL-COST CALCULATOR (SCC): DOCUMENTATION OF METHODS AND DATA, AND CASE STUDY OF SACRAMENTO

    E-Print Network [OSTI]

    Delucchi, Mark

    2005-01-01

    scenario alternatives (Sacramento MTP alternatives, in theof interest (e.g. , Sacramento). This documentation detailsarea/US scalars. For the Sacramento case study, the ratio of

  15. The Social-Cost Calculator (SCC): Documentation of Methods and Data, and Case Study of Sacramento

    E-Print Network [OSTI]

    Delucchi, Mark

    2005-01-01

    scenario alternatives (Sacramento MTP alternatives, in theof interest (e.g. , Sacramento). This documentation detailsarea/US scalars. For the Sacramento case study, the ratio of

  16. 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-

    2004-01-01

    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 ...

  17. Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario

    SciTech Connect (OSTI)

    Denholm, P.; Wan, Y. H.; Hummon, M.; Mehos, M.

    2013-03-01

    This analysis evaluates CSP with TES in a scenario where California derives 33% of its electricity from renewable energy sources. It uses a commercial grid simulation tool to examine the avoided operational and capacity costs associated with CSP and compares this value to PV and a baseload generation with constant output. Overall, the analysis demonstrates several properties of dispatchable CSP, including the flexibility to generate during periods of high value and avoid generation during periods of lower value. Of note in this analysis is the fact that significant amount of operational value is derived from the provision of reserves in the case where CSP is allowed to provide these services. This analysis also indicates that the 'optimal' configuration of CSP could vary as a function of renewable penetration, and each configuration will need to be evaluated in terms of its ability to provide dispatchable energy, reserves, and firm capacity. The model can be used to investigate additional scenarios involving alternative technology options and generation mixes, applying these scenarios within California or in other regions of interest.

  18. Cosmology in presence of dark energy in an emergent gravity scenario

    E-Print Network [OSTI]

    Debashis Gangopadhyay; Goutam Manna

    2015-02-22

    We obtain the analogues of the Friedman equations in an emergent gravity scenario in the presence of dark energy. The background metric is taken to be Friedman-Lemaitre-Robertson-Walker (FLRW). We show that if $\\dot\\phi ^{2}$ is the dark energy density (in units of the critical density) then (a) for total energy density greater than the pressure (non-relativistic scenario, matter domination) the deceleration parameter $q(t)\\approx\\frac {1}{2} [1 + 27 \\dot\\phi ^{2}+...] > \\frac{1}{2}$ (b) for total energy density equal to 3 times the pressure (relativistic case, radiation domination), the deceleration parameter $q(t)\\approx 1 + 18\\dot\\phi ^{2} +... > 1$ and (c) for total energy density equal to the negative of the pressure (dark energy scenario), the deceleration parameter $q(t)energy right from the beginning of the universe where the time parameter $t\\equiv \\frac{t}{t_{0}}$, $t_{0}$ being the present epoch.

  19. Integrated Analysis of Market Transformation Scenarios with HyTrans

    SciTech Connect (OSTI)

    Greene, David L [ORNL; Leiby, Paul Newsome [ORNL; Bowman, David Charles [ORNL

    2007-06-01

    This report presents alternative visions of the transition of light-duty vehicle transportation in the United States from petroleum to hydrogen power. It is a supporting document to the U.S. Department of Energy's Summary Report, "Analysis of the Transition to a Hydrogen Economy and the Potential Hydrogen Infrastructure Requirements" (U.S. DOE, 2007). Three alternative early transition scenarios were analyzed using a market simulation model called HyTrans. The HyTrans model simultaneously represents the behavior of fuel suppliers, vehicle manufacturers and consumers, explicitly recognizing the importance of fuel availability and the diversity of vehicle choices to consumers, and dependence of fuel supply on the existence of market demand. Competitive market outcomes are simulated by means of non-linear optimization of social surplus through the year 2050. The three scenarios specify different rates and geographical distributions of market penetration for hydrogen fuel cell vehicles from 2012 through 2025. Scenario 1 leads to 2 million vehicles on U.S. roads by 2025, while Scenarios 2 and 3 result in 5 million and 10 million FCVs in use by 2025, respectively. The HyTrans model "costs out" the transition scenarios and alternative policies for achieving them. It then tests whether the scenarios, together with the achievement of the DOE's technology goals for fuel cell vehicles and hydrogen infrastructure technologies could lead to a sustainable transition to hydrogen powered transportation. Given the achievement of DOE's ambitious technology goals, all three scenarios appear to lead to a sustainable transition to hydrogen. In the absence of early transition deployment effort, no transition is likely to begin before 2045. The cumulative costs of the transition scenarios to the government range from $8 billion to $45 billion, depending on the scenario, the policies adopted and the degree of cost-sharing with industry. In the absence of carbon constraining policies, the transition to hydrogen achieves about the same reduction in CO2 emissions as a transition to advanced gasoline-electric hybrid vehicles. With significant carbon policy, drastic reductions in well-to-wheel CO2 emissions are possible. Energy transition modeling is a newly evolving field and much remains to be done to improve the utility of models like HyTrans.

  20. Scenario Planning for Southern Company Renewable Energy Research and Innovation at the Erb Institute

    E-Print Network [OSTI]

    Edwards, Paul N.

    Scenario Planning for Southern Company Renewable Energy Research and Innovation at the Erb, Michelle Quibell and Jennifer Ritchey, all Erb '12, developed renewable energy investment timelines scenarios. Their Master's project: "Renewable Energy Investment Strategies: A Scenario Planning Analysis

  1. Where Theory meets Practice: A Case for an Activity Theory based Methodology to guide Computer System Design

    E-Print Network [OSTI]

    for an Activity Theory based Methodology to guide Computer System Design Daisy Mwanza Knowledge Media Institute, The Open University, Milton Keynes, MK7 6AA, United Kingdom D.Mwanza@open.ac.uk Abstract: Computer system a computer system. Activity Theory (AT) has emerged as a suitable framework for analysing social and cultural

  2. 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

  3. A case study for cloud based high throughput analysis of NGS data using the globus genomics system

    SciTech Connect (OSTI)

    Bhuvaneshwar, Krithika; Sulakhe, Dinanath; Gauba, Robinder; Rodriguez, Alex; Madduri, Ravi; Dave, Utpal; Lacinski, Lukasz; Foster, Ian; Gusev, Yuriy; Madhavan, Subha

    2015-01-01

    Next generation sequencing (NGS) technologies produce massive amounts of data requiring a powerful computational infrastructure, high quality bioinformatics software, and skilled personnel to operate the tools. We present a case study of a practical solution to this data management and analysis challenge that simplifies terabyte scale data handling and provides advanced tools for NGS data analysis. These capabilities are implemented using the Globus Genomics system, which is an enhanced Galaxy workflow system made available as a service that offers users the capability to process and transfer data easily, reliably and quickly to address end-to-end NGS analysis requirements. The Globus Genomics system is built on Amazon's cloud computing infrastructure. The system takes advantage of elastic scaling of compute resources to run multiple workflows in parallel and it also helps meet the scale-out analysis needs of modern translational genomics research.

  4. A case study for cloud based high throughput analysis of NGS data using the globus genomics system

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

    Bhuvaneshwar, Krithika; Sulakhe, Dinanath; Gauba, Robinder; Rodriguez, Alex; Madduri, Ravi; Dave, Utpal; Lacinski, Lukasz; Foster, Ian; Gusev, Yuriy; Madhavan, Subha

    2015-01-01

    Next generation sequencing (NGS) technologies produce massive amounts of data requiring a powerful computational infrastructure, high quality bioinformatics software, and skilled personnel to operate the tools. We present a case study of a practical solution to this data management and analysis challenge that simplifies terabyte scale data handling and provides advanced tools for NGS data analysis. These capabilities are implemented using the Globus Genomics system, which is an enhanced Galaxy workflow system made available as a service that offers users the capability to process and transfer data easily, reliably and quickly to address end-to-end NGS analysis requirements. The Globus Genomicsmoresystem is built on Amazon's cloud computing infrastructure. The system takes advantage of elastic scaling of compute resources to run multiple workflows in parallel and it also helps meet the scale-out analysis needs of modern translational genomics research.less

  5. Modeling Clean and Secure Energy Scenarios for the Indian Power Sector in 2030

    E-Print Network [OSTI]

    Abhyankara, Nikit

    2014-01-01

    scenario assumes that clean energy sources provide 40% ofscenario assumes that clean energy sources provide 60% ofcapacity in the clean energy scenarios is substantially more

  6. 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and...

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

    1 Summary Presentation 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting Discussion Group 1 Summary Presentation 2010-2025 Scenario Analysis...

  7. Agenda for the 2010-2025 Scenario Analysis for Hydrogen Fuel...

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

    2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting Agenda for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure...

  8. Analysis of Long-range Clean Energy Investment Scenarios for Eritrea, East Africa

    E-Print Network [OSTI]

    Van Buskirk, Robert D.

    2004-01-01

    Clean Energy Investment Scenarios for Eritrea, East Africaand renewable energy development scenarios for Eritrea, EastEritrea, East Africa in an effort to facilitate clean energy

  9. Strategic backdrop analysis for fossil fuel planning. Task 2 report (New Task Series), The Base Case. Report 473-117-08/01

    SciTech Connect (OSTI)

    Not Available

    1980-08-01

    This report describes a base case analysis performed using the strategic backdrop analytical framework developed by The Futures Group to facilitate fossil fuel planning within the Department of Energy. It builds upon the data base compiled in the default case previously submitted but uses a different set of energy technology assumptions. Objectives of the strategic backdrop analysis project are: (1) to delineate alternative socioeconomic futures or target worlds for the United States and to derive, for each world, the amount of energy needed to sustain its level of economic activity and lifestyle, assuming no technological changes; (2) to construct an analytical framework that accounts for the flow of energy from the disaggregated end-use target demand sectors back through the distribution and conversion processes to primary resource requirements; (3) to use this framework 1) to analyze how alternative government policies and associated new technologies can change the primary resource needs and fuel mix while still providing the same level of end-use energy service for the target world, and 2) to highlight resource constraints, program inconsistencies, and economic, environmental, and social implications; (4) to transfer to DOE personnel the methodology for generating energy targets and accounting for important characteristics of alternative energy policies and technologies.

  10. Saeed, N., Yang, Y., & Sinnappan, S. (2009). Emerging Web Technologies in Higher Education: A Case of Incorporating Blogs, Podcasts and Social Bookmarks in a Web Programming Course based on Students' Learning Styles and Technology Preferences.

    E-Print Network [OSTI]

    Yang, Yun

    2009-01-01

    at kinshuk@ieee.org. Emerging Web Technologies in Higher Education: A Case of Incorporating Blogs, PodcastsSaeed, N., Yang, Y., & Sinnappan, S. (2009). Emerging Web Technologies in Higher Education: A Case of Incorporating Blogs, Podcasts and Social Bookmarks in a Web Programming Course based on Students' Learning

  11. TechnologyScenarios Newsletter No. 4, October 1999.... Introduction

    E-Print Network [OSTI]

    have been sent to the Danish Energy Agency's Energy Research Pro- gramme. Both projects comprise- tion of the considerations behind these research themes can be found on our homepage. New Projects1 TechnologyScenarios Newsletter No. 4, October 1999.... Introduction The research programme

  12. PERSPECTIVES The next generation of scenarios for climate

    E-Print Network [OSTI]

    Meehl, Gerald A.

    PERSPECTIVES The next generation of scenarios for climate change research and assessment Richard H. Thomson1 , John P. Weyant12 & Thomas J. Wilbanks13 Advances in the science and observation of climate change are providing a clearer understanding of the inherent variability of Earth's climate system

  13. Voting in Cooperative Information Agent Scenarios: Use and Abuse

    E-Print Network [OSTI]

    Lehmann, Daniel

    with its own set of fundamental questions (both the- oretical and applied). This distinctive blurringVoting in Cooperative Information Agent Scenarios: Use and Abuse Jeffrey S. Rosenschein Ariel D}@cs.huji.ac.il Abstract. Social choice theory can serve as an appropriate foundation upon which to build cooperative

  14. Regionalized Global Energy Scenarios Meeting Stringent Climate Targets

    E-Print Network [OSTI]

    Regionalized Global Energy Scenarios Meeting Stringent Climate Targets cost effective fuel in the energy system it is less costly to reduce CO2-emissions #12;Global energy system model #12;Global energy system model Optimisation #12;Global energy system model Optimisation Minimises the total cost under

  15. Primordial fluctuations of the metric in the warm inflation scenario

    E-Print Network [OSTI]

    Mauricio Bellini

    2000-05-16

    I consider a semiclassical expansion of the scalar field in the warm inflation scenario. I study the evolution for the fluctuations of the metric around the Friedmann-Robertson-Walker one. The formalism predicts that, in the power-law expansion universe, the fluctuations of the metric decreases with time.

  16. Stability and scenario trees for multistage stochastic programs

    E-Print Network [OSTI]

    Rmisch, Werner

    omisch Humboldt-University Berlin Institute of Mathematics 10099 Berlin, Germany Abstract By extending scenario trees in electricity portfolio management is reported. Key Words: Stochastic programming uncertainty, e.g., in finance, production, energy and logistics. We refer to the pioneering work of Dantzig [5

  17. Evaluation of Future Energy Technology Deployment Scenarios for

    E-Print Network [OSTI]

    Electric Light Company (HELCO) Integrated Resource Plan-31 . Three different electricity infrastructureEvaluation of Future Energy Technology Deployment Scenarios for the Big Island Prepared for the U. Following receipt of the draft report, an extensive review was conducted by Hawaii Electric Light Company

  18. Circuit Area Optimization in Energy Temporal Sparse Scenarios for

    E-Print Network [OSTI]

    Politcnica de Catalunya, Universitat

    Circuit Area Optimization in Energy Temporal Sparse Scenarios for Multiple Harvester Powered.alarcon@upc.edu Abstract--Multi-source energy harvesters are gaining interest as a robust alternative to power wireless sensors, since the sensor node can maintain its operation regardless of the fact that one of its energy

  19. FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION

    E-Print Network [OSTI]

    Salamon, Peter

    CHAPTER 1 FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION MACHINES OF THE THIRD KIND Peter to a notion of staging free energy: the free energy invested in choreographing all the actors of a biochemical \\offprintinfo{(Title, Edition)}{(Author)} at the beginning of your document. 1 #12;2 FREE ENERGIES OF STAGING

  20. Renewable Energy Scenarios for the Kingdom of Saudi Arabia

    E-Print Network [OSTI]

    Watson, Andrew

    Renewable Energy Scenarios for the Kingdom of Saudi Arabia Yasser Al-Saleh, Paul Upham and Khaleel Malik October 2008 Tyndall Centre for Climate Change Research Working Paper 125 #12;Renewable Energy compromising those of future generations. Renewable energy technologies, in particular, are becoming

  1. The Importance of High Temporal Resolution in Modeling Renewable Energy Penetration Scenarios

    SciTech Connect (OSTI)

    Nicolosi, Marco; Mills, Andrew D; Wiser, Ryan H

    2010-10-08

    Traditionally, modeling investment and dispatch problems in electricity economics has been limited by computation power. Due to this limitation, simplifications are applied. One common practice, for example, is to reduce the temporal resolution of the dispatch by clustering similar load levels. The increase of intermittent electricity from renewable energy sources (RES-E) changes the validity of this assumption. RES-E already cover a certain amount of the total demand. This leaves an increasingly volatile residual demand to be matched by the conventional power market. This paper quantifies differences in investment decisions by applying three different time-resolution residual load patterns in an investment and dispatch power system model. The model optimizes investment decisions in five year steps between today and 2030 with residual load levels for 8760, 288 and 16 time slices per year. The market under consideration is the four zone ERCOT market in Texas. The results show that investment decisions significantly differ across the three scenarios. In particular, investments into base-load technologies are substantially reduced in the high resolution scenario (8760 residual load levels) relative to the scenarios with lower temporal resolution. Additionally, the amount of RES-E curtailment and the market value of RES-E exhibit noteworthy differences.

  2. SCENARIOS FOR MEETING CALIFORNIA'S 2050 CLIMATE GOALS California's Carbon Challenge Phase II Volume I: Non-Electricity Sectors and Overall Scenario Results

    SciTech Connect (OSTI)

    Wei, Max; Greenblatt, Jeffrey; Donovan, Sally; Nelson, James; Mileva, Ana; Johnston, Josiah; Kammen, Daniel

    2014-06-01

    This study provides an updated analysis of long-term energy system scenarios for California consistent with the State meeting its 2050 climate goal, including detailed analysis and assessment of electricity system build-out, operation, and costs across the Western Electricity Coordinating Council (WECC) region. Four key elements are found to be critical for the State to achieve its 2050 goal of 80 percent greenhouse (GHG) reductions from the 1990 level: aggressive energy efficiency; clean electricity; widespread electrification of passenger vehicles, building heating, and industry heating; and large-scale production of low-carbon footprint biofuels to largely replace petroleum-based liquid fuels. The approach taken here is that technically achievable energy efficiency measures are assumed to be achieved by 2050 and aggregated with the other key elements mentioned above to estimate resultant emissions in 2050. The energy and non-energy sectors are each assumed to have the objective of meeting an 80 percent reduction from their respective 1990 GHG levels for the purposes of analysis. A different partitioning of energy and non-energy sector GHG greenhouse reductions is allowed if emission reductions in one sector are more economic or technically achievable than in the other. Similarly, within the energy or non-energy sectors, greater or less than 80 percent reduction from 1990 is allowed for sub-sectors within the energy or non-energy sectors as long as the overall target is achieved. Overall emissions for the key economy-wide scenarios are considered in this report. All scenarios are compliant or nearly compliant with the 2050 goal. This finding suggests that multiple technical pathways exist to achieve the target with aggressive policy support and continued technology development of largely existing technologies.

  3. An interactive ontology-driven information system for simulating background radiation and generating scenarios for testing special nuclear materials detection algorithms

    SciTech Connect (OSTI)

    Sorokine, Alexandre; Schlicher, Bob G; Ward, Richard C; Wright, Michael C; Kruse, Kara L

    2015-01-01

    This paper describes an original approach to generating scenarios for the purpose of testing the algorithms used to detect special nuclear materials (SNM) that incorporates the use of ontologies. Separating the signal of SNM from the background requires sophisticated algorithms. To assist in developing such algorithms, there is a need for scenarios that capture a very wide range of variables affecting the detection process, depending on the type of detector being used. To provide such a cpability, we developed an ontology-driven information system (ODIS) for generating scenarios that can be used in creating scenarios for testing of algorithms for SNM detection. The ontology-driven scenario generator (ODSG) is an ODIS based on information supplied by subject matter experts and other documentation. The details of the creation of the ontology, the development of the ontology-driven information system, and the design of the web user interface (UI) are presented along with specific examples of scenarios generated using the ODSG. We demonstrate that the paradigm behind the ODSG is capable of addressing the problem of semantic complexity at both the user and developer levels. Compared to traditional approaches, an ODIS provides benefits such as faithful representation of the users' domain conceptualization, simplified management of very large and semantically diverse datasets, and the ability to handle frequent changes to the application and the UI. The approach makes possible the generation of a much larger number of specific scenarios based on limited user-supplied information

  4. Type Ia Supernova Scenarios and the Hubble Sequence

    E-Print Network [OSTI]

    P. Ruiz-Lapuente; A. Burkert; R. Canal

    1995-05-19

    The dependence of the Type Ia supernova (SN Ia) rate on galaxy type is examined for three currently proposed scenarios: merging of a Chandrasekhar--mass CO white dwarf (WD) with a CO WD companion, explosion of a sub--Chandrasekhar mass CO WD induced by accretion of material from a He star companion, and explosion of a sub--Chandrasekhar CO WD in a symbiotic system. The variation of the SNe Ia rate and explosion characteristics with time is derived, and its correlation with parent population age and galaxy redshift is discussed. Among current scenarios, CO + He star systems should be absent from E galaxies. Explosion of CO WDs in symbiotic systems could account for the SNe Ia rate in these galaxies. The same might be true for the CO + CO WD scenario, depending on the value of the common envelope parameter. A testable prediction of the sub--Chandrasekhar WD model is that the average brightness and kinetic energy of the SN Ia events should increase with redshift for a given Hubble type. Also for this scenario, going along the Hubble sequence from E to Sc galaxies SNe Ia events should be brighter on average and should show larger mean velocities of the ejecta. The observational correlations strongly suggest that the characteristics of the SNe Ia explosion are linked to parent population age. The scenario in which WDs with masses below the Chandrasekhar mass explode appears the most promising one to explain the observed variation of the SN Ia rate with galaxy type together with the luminosity--expansion velocity trend.

  5. 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)

    2011-01-15

    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)

  6. The Worst-case Wind Power Scenario for Adaptive Robust Unit ...

    E-Print Network [OSTI]

    Sep 16, 2014 ... Abstract: Abstract--- The increasing penetration of uncertain generation such as wind and solar in power systems imposes new challenges to...

  7. A Study of the Mechanisms Leading to Re-Ignition in a Worst Case Fire Scenario

    E-Print Network [OSTI]

    Jomaas, Grunde; Roberts, B T; DuBois, Jacqueline; Torero, Jose L

    A systematic evaluation of the stability of a re-circulation zone behind a backward facing step under conditions expected in an aircraft engine nacelle has been conducted together with the evaluation of the effects of ...

  8. Evaluation of a Large Eddy Simulation's Applicability to a Worst Case Fire Scenario

    E-Print Network [OSTI]

    DuBois, Jacqueline

    The applicability of a large eddy simulation to a small scale turbulent flow problem is assessed by comparing modeled results to those recovered from a physical apparatus with the same geometry. The computational domain ...

  9. Plug-In Hybrid Electric Vehicle Value Proposition Study: Interim Report: Phase I Scenario Evaluation

    SciTech Connect (OSTI)

    Sikes, Karen R; Markel, Lawrence C; Hadley, Stanton W; Hinds, Shaun; DeVault, Robert C

    2009-01-01

    Plug-in hybrid electric vehicles (PHEVs) offer significant improvements in fuel economy, convenient low-cost recharging capabilities, potential environmental benefits, and decreased reliance on imported petroleum. However, the cost associated with new components (e.g., advanced batteries) to be introduced in these vehicles will likely result in a price premium to the consumer. This study aims to overcome this market barrier by identifying and evaluating value propositions that will increase the qualitative value and/or decrease the overall cost of ownership relative to the competing conventional vehicles and hybrid electric vehicles (HEVs) of 2030 During this initial phase of this study, business scenarios were developed based on economic advantages that either increase the consumer value or reduce the consumer cost of PHEVs to assure a sustainable market that can thrive without the aid of state and Federal incentives or subsidies. Once the characteristics of a thriving PHEV market have been defined for this timeframe, market introduction steps, such as supportive policies, regulations and temporary incentives, needed to reach this level of sustainability will be determined. PHEVs have gained interest over the past decade for several reasons, including their high fuel economy, convenient low-cost recharging capabilities, potential environmental benefits and reduced use of imported petroleum, potentially contributing to President Bush's goal of a 20% reduction in gasoline use in ten years, or 'Twenty in Ten'. PHEVs and energy storage from advanced batteries have also been suggested as enabling technologies to improve the reliability and efficiency of the electric power grid. However, PHEVs will likely cost significantly more to purchase than conventional or other hybrid electric vehicles (HEVs), in large part because of the cost of batteries. Despite the potential long-term savings to consumers and value to stakeholders, the initial cost of PHEVs presents a major market barrier to their widespread commercialization. The purpose of this project is to identify and evaluate value-added propositions for PHEVs that will help overcome this market barrier. Candidate value propositions for the initial case study were chosen to enhance consumer acceptance of PHEVs and/or compatibility with the grid. Potential benefits of such grid-connected vehicles include the ability to supply peak load or emergency power requirements of the grid, enabling utilities to size their generation capacity and contingency resources at levels below peak. Different models for vehicle/battery ownership, leasing, financing and operation, as well as the grid, communications, and vehicle infrastructure needed to support the proposed value-added functions were explored during Phase 1. Rigorous power system, vehicle, financial and emissions modeling were utilized to help identify the most promising value propositions and market niches to focus PHEV deployment initiatives.

  10. Power and Particle Exhaust in Tokamaks: Integration of Plasma Scenarios with Plasma Facing Materials and Components

    E-Print Network [OSTI]

    Power and Particle Exhaust in Tokamaks: Integration of Plasma Scenarios with Plasma Facing Materials and Components

  11. Initial Low Recycling Improving Confinement and Current Drive in Advanced Tokamak (AT) and Hybrid Scenarios

    E-Print Network [OSTI]

    Initial Low Recycling Improving Confinement and Current Drive in Advanced Tokamak (AT) and Hybrid Scenarios

  12. Reliable Muddle: Transportation Scenarios for the 80% Greenhouse Gas Reduction Goal for 2050 (Presentation)

    SciTech Connect (OSTI)

    Melaina, M.; Webster, K.

    2009-10-28

    Presentation describing transportation scenarios for meeting the 2050 DOE goal of reducing greenhouse gases by 80%.

  13. Mechanical fluctuations suppress the threshold of soft-glassy solids : the secular drift scenario

    E-Print Network [OSTI]

    Adeline Pons; Axelle Amon; Thierry Darnige; Jrme Crassous; Eric Clment

    2015-09-01

    We propose a dynamical mechanism leading to the fluidization of soft-glassy amorphous mate-rial driven below the yield-stress by external mechanical fluctuations. The model is based on the combination of memory effect and non-linearity, leading to an accumulation of tiny effects over a long-term. We test this scenario on a granular packing driven mechanically below the Coulomb threshold. We bring evidences for an effective viscous response directly related to small stress modulations in agreement with the theoretical prediction of a generic secular drift.

  14. An ISP-27 accident scenario for analysis of Krsko Nuclear Power Plant SBLOCA

    SciTech Connect (OSTI)

    Petelin, S.; Mavko, B.; Gortnar, O.; Parzer, I.

    1994-12-31

    The reactor safety analysis group of Jozef Stefan Institute (IJS) has participated in analyses of International Standard Problem 27 (ISP-27), which was based on test 9.1 b performed at the BETHSY experimental facility (France). In addition, we realized the ISP-27 transient scenario in the analysis of a small-break loss-of-coolant accident (SBLOCA) for Krsko nuclear power plant (NPP). The objective was to evaluate the effectiveness of the ISP-27 proposed accident management procedure for a real NPP and to compare the physical phenomena known from experimental background with the phenomena predicted by simulation of a real plant transient.

  15. Systems analysis of past, present, and future chemical terrorism scenarios.

    SciTech Connect (OSTI)

    Hoette, Trisha Marie

    2012-03-01

    Throughout history, as new chemical threats arose, strategies for the defense against chemical attacks have also evolved. As a part of an Early Career Laboratory Directed Research and Development project, a systems analysis of past, present, and future chemical terrorism scenarios was performed to understand how the chemical threats and attack strategies change over time. For the analysis, the difficulty in executing chemical attack was evaluated within a framework of three major scenario elements. First, historical examples of chemical terrorism were examined to determine how the use of chemical threats, versus other weapons, contributed to the successful execution of the attack. Using the same framework, the future of chemical terrorism was assessed with respect to the impact of globalization and new technologies. Finally, the efficacy of the current defenses against contemporary chemical terrorism was considered briefly. The results of this analysis justify the need for continued diligence in chemical defense.

  16. Inflation scenario via the Standard Model Higgs boson and LHC

    E-Print Network [OSTI]

    A. O. Barvinsky; A. Yu. Kamenshchik; A. A. Starobinsky

    2008-09-11

    We consider a quantum corrected inflation scenario driven by a generic GUT or Standard Model type particle model whose scalar field playing the role of an inflaton has a strong non-minimal coupling to gravity. We show that currently widely accepted bounds on the Higgs mass falsify the suggestion of the paper arXiv:0710.3755 (where the role of radiative corrections was underestimated) that the Standard Model Higgs boson can serve as the inflaton. However, if the Higgs mass could be raised to $\\sim 230$ GeV, then the Standard Model could generate an inflationary scenario with the spectral index of the primordial perturbation spectrum $n_s\\simeq 0.935$ (barely matching present observational data) and the very low tensor-to-scalar perturbation ratio $r\\simeq 0.0006$.

  17. China's sustainable energy future: Scenarios of energy and carbonemissions (Summary)

    SciTech Connect (OSTI)

    Zhou, Dadi; Levine, Mark; Dai, Yande; Yu, Cong; Guo, Yuan; Sinton, Jonathan E.; Lewis, Joanna I.; Zhu, Yuezhong

    2004-03-10

    China has ambitious goals for economic development, and mustfind ways to power the achievement of those goals that are bothenvironmentally and socially sustainable. Integration into the globaleconomy presents opportunities for technological improvement and accessto energy resources. China also has options for innovative policies andmeasures that could significantly alter the way energy is acquired andused. These opportunities andoptions, along with long-term social,demographic, and economic trends, will shape China s future energysystem, and consequently its contribution to emissions of greenhousegases, particularly carbon dioxide (CO2). In this study, entitled China sSustainable Energy Future: Scenarios of Energy and Carbon Emissions, theEnergy Research Institute (ERI), an independent analytic organizationunder China's Na tional Development and Reform Commission (NDRC), soughtto explore in detail how China could achieve the goals of the TenthFive-Year Plan and its longer term aims through a sustainable developmentstrategy. China's ability to forge a sustainable energy path has globalconsequences. China's annual emissions of greenhouse gases comprisenearly half of those from developing countries, and 12 percent of globalemissions. Most of China's greenhouse gas emissions are in the form ofCO2, 87 percent of which came from energy use in 2000. In that year,China's carbon emissions from energy use and cement production were 760million metric tons (Mt-C), second only to the 1,500 Mt-C emitted by theUS (CDIAC, 2003). As China's energy consumption continues to increase,greenhouse gas emissions are expected to inevitably increase into thefuture. However, the rate at which energy consumption and emissions willincrease can vary significantly depending on whether sustainabledevelopment is recognized as an important policy goal. If the ChineseGovernment chooses to adopt measures to enhance energy efficiency andimprove the overall structure of energy supply, it is possible thatfuture economic growth may be supported by a relatively lower increase inenergy consumption. Over the past 20 years, energy intensity in China hasbeen reduced partly through technological and structural changes; currentannual emissions may be as much as 600 Mt-C lower than they would havebeen without intensity improvements. China must take into account itsunique circumstances in considering how to achieve a sustainabledevelopment path. This study considers the feasibility of such anachievement, while remaining open to exploring avenues of sustainabledevelopment that may be very different from existing models. Threescenarios were prepared to assist the Chinese Government to explore theissues, options and uncertainties that it confronts in shaping asustainable development path compatible with China's uniquecircumstances. The Promoting Sustainability scenario offers a systematicand complete interpretation of the social and economic goals proposed inthe Tenth Five-Year Plan. The possibility that environmentalsustainability would receive low priority is covered in the OrdinaryEffort scenario. Aggressive pursuit of sustainable development measuresalong with rapid economic expansion is featured in the Green Growthscenario. The scenarios differ in the degree to which a common set ofenergy supply and efficiency policies are implemented. In cons ultationwith technology and policy experts domestically and abroad, ERI developedstrategic scenarios and quantified them using an energy accounting model.The scenarios consider, in unprecedented detail, changes in energy demandstructure and technology, as well as energy supply, from 1998 to 2020.The scenarios in this study are an important step in estimating realistictargets for energy efficiency and energy supply development that are inline with a sustainable development strategy. The scenarios also helpanalyze and explore ways in which China might slow growth in greenhousegas emissions. The key results have important policy implications:Depending on how demand for energy services is met, China could quadrupleits gross domesti

  18. Scenario Evaluation, Regionalization & Analysis (SERA) | Open Energy

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk,Sage ResourcesFlorida:SatconInformation Scenario Evaluation,

  19. 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...

  20. Quantum phase transitions of the Dirac oscillator in a minimal length scenario

    E-Print Network [OSTI]

    L. Menculini; O. Panella; P. Roy

    2014-11-19

    We obtain exact solutions of the (2+1) dimensional Dirac oscillator in a homogeneous magnetic field within a minimal length ($\\Delta x_0=\\hbar \\sqrt{\\beta}$), or generalised uncertainty principle (GUP) scenario. This system in ordinary quantum mechanics has a single left-right chiral quantum phase transition (QPT). We show that a non zero minimal length turns on a infinite number of quantum phase transitions which accumulate towards the known QPT when $\\beta \\to 0$. It is also shown that the presence of the minimal length modifies the degeneracy of the states and that in this case there exist a new class of states which do not survive in the ordinary quantum mechanics limit $\\beta \\to 0$.

  1. MeV sterile neutrinos in low reheating temperature cosmological scenarios

    SciTech Connect (OSTI)

    Gelmini, Graciela; Osoba, Efunwande [Department of Physics and Astronomy, UCLA, Los Angeles, CA 90095 (United States)] [Department of Physics and Astronomy, UCLA, Los Angeles, CA 90095 (United States); Palomares-Ruiz, Sergio; Pascoli, Silvia, E-mail: gelmini@physics.ucla.edu, E-mail: eosoba@ucla.edu, E-mail: sergio.palomares-ruiz@durham.ac.uk, E-mail: sergio.palomares.ruiz@ist.utl.pt, E-mail: silvia.pascoli@durham.ac.uk [IPPP, Department of Physics, Durham University, Durham DH1 3LE (United Kingdom)] [IPPP, Department of Physics, Durham University, Durham DH1 3LE (United Kingdom)

    2008-10-15

    It is commonly assumed that the cosmological and astrophysical bounds on the mixings of sterile with active neutrinos are much more stringent than those obtained from laboratory measurements. We point out that in scenarios with a very low reheating temperature T{sub RH}<<100 MeV at the end of (the last episode of) inflation or entropy creation, the abundance of sterile neutrinos becomes greatly suppressed with respect to that obtained within the standard framework. Thus, in this case cosmological bounds become much less stringent than usually assumed, allowing sterile neutrinos to be 'visible' in future experiments. Here, we concentrate on massive (mostly sterile) neutrinos with masses m{sub s}>1 MeV for T{sub RH}{<=}m{sub s}.

  2. Modified GBIG Scenario as a Successful Alternative for Dark Energy

    E-Print Network [OSTI]

    Nozari, Kourosh

    2009-01-01

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  3. Executive Summary High-Yield Scenario Workshop Series Report

    SciTech Connect (OSTI)

    Leslie Park Ovard; Thomas H. Ulrich; David J. Muth Jr.; J. Richard Hess; Steven Thomas; Bryce Stokes

    2009-12-01

    To get a collective sense of the impact of research and development (R&D) on biomass resource availability, and to determine the feasibility that yields higher than baseline assumptions used for past assessments could be achieved to support U.S. energy independence, an alternate High-Yield Scenario (HYS) concept was presented to industry experts at a series of workshops held in December 2009. The workshops explored future production of corn/agricultural crop residues, herbaceous energy crops (HECs), and woody energy crops (WECs). This executive summary reports the findings of that workshop.

  4. A Study of Universal Thermodynamics in Brane World Scenario

    E-Print Network [OSTI]

    Saugata Mitra; Subhajit Saha; Subenoy Chakraborty

    2015-03-25

    A study of Universal thermodynamics is done in the frame work of RSII brane model and DGP brane scenario. The Universe is chosen as FRW model bounded by apparent or event horizon. Assuming extended Hawking temperature on the horizon, the unified first law is examined for perfect fluid (with constant equation of state) and modified Chaplygin gas model. As a result there is a modification of Bekenstein entropy on the horizons. Further the validity of the generalized second law of thermodynamics and thermodynamical equilibrium are also investigated.

  5. Modified GBIG Scenario as an Alternative for Dark Energy

    E-Print Network [OSTI]

    Kourosh Nozari; Narges Rashidi

    2009-09-02

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  6. Greenhouse Gas Initiative Scenario Database | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainableGlynn County,Solar Jump to: navigation, searchInitiative Scenario Database

  7. Energy System and Scenario Analysis Toolkit | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop, Incsource History ViewEnergy System and Scenario

  8. Low Carbon Society Scenarios Towards 2050 | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenarios Towards 2050 Jump to: navigation, search Tool Summary LAUNCH TOOL

  9. The "Pinch Analysis": Special Cases

    E-Print Network [OSTI]

    Bitowft, B.; Tripathi, P.

    1989-01-01

    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...

  10. Towards a Cognitive Handoff for the Future Internet: Model-driven Methodology and Taxonomy of Scenarios

    E-Print Network [OSTI]

    Gonzalez-Horta, Francisco A; Ramirez-Cortes, Juan M; Martinez-Carballido, Jorge; Buenfil-Alpuche, Eldamira

    2011-01-01

    A cognitive handoff is a multipurpose handoff that achieves many desirable features simultaneously; e.g., seamlessness, autonomy, security, correctness, adaptability, etc. But, the development of cognitive handoffs is a challenging task that has not been properly addressed in the literature. In this paper, we discuss the difficulties of developing cognitive handoffs and propose a new model-driven methodology for their systematic development. The theoretical framework of this methodology is the holistic approach, the functional decomposition method, the model-based design paradigm, and the theory of design as scientific problem-solving. We applied the proposed methodology and obtained the following results: (i) a correspondence between handoff purposes and quantitative environment information, (ii) a novel taxonomy of handoff mobility scenarios, and (iii) an original state-based model representing the functional behavior of the handoff process.

  11. Status of Advanced Tokamak Scenario Modeling with Off-Axis Electron Cyclotron Current Drive in DIII-D

    SciTech Connect (OSTI)

    M. Murakami; H.E. St.John; T.A. Casper; M.S. Chu; J.C. DeBoo; C.M. Greenfield; J.E. Kinsey; L.L. Lao; R.J. La Haye; Y.R. Lin-Liu; T.C. Luce; P.A. Politzer; B.W. Rice; G.M. Staebler; T.S. Taylor; M.R. Wade

    1999-12-01

    The status of modeling work focused on developing the advanced tokamak scenarios in DIII-D is discussed. The objectives of the work are two-fold: (1) to develop AT scenarios with ECCD using time-dependent transport simulations, coupled with heating and current drive models, consistent with MHD equilibrium and stability; and (2) to use time-dependent simulations to help plan experiments and to understand the key physics involved. Time-dependent simulations based on transport coefficients derived from experimentally achieved target discharges are used to perform AT scenario modeling. The modeling indicates off-axis ECCD with approximately 3 MW absorbed power can maintain high-performance discharges with q{sub min} > 1 for 5 to 10 s. The resultant equilibria are calculated to be stable to n = 1 pressure driven modes. The plasma is well into the second stability regime for high-n ballooning modes over a large part of the plasma volume. The role of continuous localized ECCD is studied for stabilizing m/n = 2/1 tearing modes. The progress towards validating current drive and transport models, consistent with experimental results, and developing self-consistent, integrated high performance AT scenarios is discussed.

  12. Renewable Energy and Efficiency Modeling Analysis Partnership: An Analysis of How Different Energy Models Addressed a Common High Renewable Energy Penetration Scenario in 2025

    E-Print Network [OSTI]

    Blair, N.

    2010-01-01

    5B. Base Case reference run renewable energy capacity inrenewable energy runs (in addition, natural penetration reference cases).renewable energy capacity values for the 20% RE penetration case.

  13. Delaware's Energy Efficiency Potential and Program Scenarios to Meet Its Energy Efficiency Resource Standard

    E-Print Network [OSTI]

    Delaware, University of

    Delaware's Energy Efficiency Potential and Program Scenarios to Meet Its Energy Efficiency Resource Scenarios to Meet Its Energy Efficiency Resource Standard prepared for the Office of the Secretary and development, environmental justice, conservation and renewable energy options, integrated resource planning

  14. Participant List for the 2010-2025 Scenario Analysis for Hydrogen...

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

    Participant List for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting on January 31, 2007 Participant List for the 2010-2025 Scenario...

  15. 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and...

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

    Final List of Attendees 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Final List of Attendees 2010-2025 Scenario Analysis for Hydrogen Fuel Cell...

  16. Hawaii Clean Energy Initiative (HCEI) Scenario Analysis: Quantitative Estimates Used to Facilitate Working Group Discussions (2008-2010)

    SciTech Connect (OSTI)

    Braccio, R.; Finch, P.; Frazier, R.

    2012-03-01

    This report provides details on the Hawaii Clean Energy Initiative (HCEI) Scenario Analysis to identify potential policy options and evaluate their impact on reaching the 70% HECI goal, present possible pathways to attain the goal based on currently available technology, with an eye to initiatives under way in Hawaii, and provide an 'order-of-magnitude' cost estimate and a jump-start to action that would be adjusted with a better understanding of the technologies and market.

  17. Getting from here to there energy technology transformation pathways in the EMF-27 scenarios

    SciTech Connect (OSTI)

    Krey, Volker; Luderer, Gunnar; Clarke, Leon E.; Kriegler, Elmar

    2014-04-01

    This apper discusses Getting from here to there energy technology transformation pathways in the EMF-27 scenarios

  18. A Method for Evaluating Fire After Earthquake Scenarios for Single Buildings

    Broader source: Energy.gov [DOE]

    A Method for Evaluating Fire After Earthquake Scenarios for Single Buildings Authors: Elizabeth J. Kelly and Raymond N. Tell

  19. The role of vector fields in modified gravity scenarios

    SciTech Connect (OSTI)

    Tasinato, Gianmassimo; Koyama, Kazuya; Khosravi, Nima E-mail: kazuya.koyama@port.ac.uk

    2013-11-01

    Gravitational vector degrees of freedom typically arise in many examples of modified gravity models. We start to systematically explore their role in these scenarios, studying the effects of coupling gravitational vector and scalar degrees of freedom. We focus on set-ups that enjoy a Galilean symmetry in the scalar sector and an Abelian gauge symmetry in the vector sector. These symmetries, together with the requirement that the equations of motion contain at most two space-time derivatives, only allow for a small number of operators in the Lagrangian for the gravitational fields. We investigate the role of gravitational vector fields for two broad classes of phenomena that characterize modified gravity scenarios. The first is self-acceleration: we analyze in general terms the behavior of vector fluctuations around self-accelerating solutions, and show that vanishing kinetic terms of vector fluctuations lead to instabilities on cosmological backgrounds. The second phenomenon is the screening of long range fifth forces by means of Vainshtein mechanism. We show that if gravitational vector fields are appropriately coupled to a spherically symmetric source, they can play an important role for defining the features of the background solution and the scale of the Vainshtein radius. Our general results can be applied to any concrete model of modified gravity, whose low-energy vector and scalar degrees of freedom satisfy the symmetry requirements that we impose.

  20. Methodology Using MELCOR Code to Model Proposed Hazard Scenario

    SciTech Connect (OSTI)

    Gavin Hawkley

    2010-07-01

    This study demonstrates a methodology for using the MELCOR code to model a proposed hazard scenario within a building containing radioactive powder, and the subsequent evaluation of a leak path factor (LPF) (or the amount of respirable material which that escapes a facility into the outside environment), implicit in the scenario. This LPF evaluation will analyzes the basis and applicability of an assumed standard multiplication of 0.5 0.5 (in which 0.5 represents the amount of material assumed to leave one area and enter another), for calculating an LPF value. The outside release is dependsent upon the ventilation/filtration system, both filtered and un-filtered, and from other pathways from the building, such as doorways (, both open and closed). This study is presents ed to show how the multiple leak path factorsLPFs from the interior building can be evaluated in a combinatory process in which a total leak path factorLPF is calculated, thus addressing the assumed multiplication, and allowing for the designation and assessment of a respirable source term (ST) for later consequence analysis, in which: the propagation of material released into the environmental atmosphere can be modeled and the dose received by a receptor placed downwind can be estimated and the distance adjusted to maintains such exposures as low as reasonably achievableALARA.. Also, this study will briefly addresses particle characteristics thatwhich affect atmospheric particle dispersion, and compares this dispersion with leak path factorLPF methodology.

  1. Isospin violating dark matter in Stckelberg portal scenarios

    E-Print Network [OSTI]

    Victor Martin-Lozano; Miguel Peiro; Pablo Soler

    2015-03-05

    Hidden sector scenarios in which dark matter (DM) interacts with the Standard Model matter fields through the exchange of massive Z' bosons are well motivated by certain string theory constructions. In this work, we thoroughly study the phenomenological aspects of such scenarios and find that they present a clear and testable consequence for direct DM searches. We show that such string motivated St\\"uckelberg portals naturally lead to isospin violating interactions of DM particles with nuclei. We find that the relations between the DM coupling to neutrons and protons for both, spin-independent (fn/fp) and spin-dependent (an/ap) interactions, are very flexible depending on the charges of the quarks under the extra U(1) gauge groups. We show that within this construction these ratios are generically different from plus and minus 1 (i.e. different couplings to protons and neutrons) leading to a potentially measurable distinction from other popular portals. Finally, we incorporate bounds from searches for dijet and dilepton resonances at the LHC as well as LUX bounds on the elastic scattering of DM off nucleons to determine the experimentally allowed values of fn/fp and an/ap.

  2. Ultra High Energy Neutrino Signature in Top-Down Scenario

    E-Print Network [OSTI]

    Roberto Aloisio

    2006-12-22

    Neutrinos are the best candidates to test the extreme Universe and ideas beyond the Standard Model of particle Physics. Once produced, neutrinos do not suffer any kind of attenuation by intervening radiation fields like the Cosmic Microwave Background and are not affected by magnetic fields. In this sense neutrinos are useful messengers from the far and young Universe. In the present paper we will discuss a particular class of sources of Ultra High Energy Cosmic Rays introduced to explain the possible excess of events with energy larger than the Graisen-Zatsepin-Kuzmin cut-off. These sources, collectively called top-down, share a common feature: UHE particles are produced in the decay or annihilation of superheavy, exotic, particles. As we will review in the present paper, the largest fraction of Ultra High Energy particles produced in the top-down scenario are neutrinos. The study of these radiation offers us a unique opportunity to test the exotic mechanisms of the top-down scenario.

  3. The matter bounce scenario in loop quantum cosmology

    SciTech Connect (OSTI)

    Wilson-Ewing, Edward, E-mail: wilson-ewing@cpt.univ-mrs.fr [Aix-Marseille Universit, CNRS UMR 7332, CPT, 13288 Marseille (France)

    2013-03-01

    In the matter bounce scenario, a dust-dominated contracting space-time generates scale-invariant perturbations that, assuming a nonsingular bouncing cosmology, propagate to the expanding branch and set appropriate initial conditions for the radiation-dominated era. Since this scenario depends on the presence of a bounce, it seems appropriate to consider it in the context of loop quantum cosmology where a bouncing universe naturally arises. For a pressureless collapsing universe in loop quantum cosmology, the predicted power spectrum of the scalar perturbations after the bounce is scale-invariant and the tensor to scalar ratio is negligibly small. A slight red tilt can be given to the scale-invariance of the scalar perturbations by a scalar field whose equation of state is P = ???, where ? is a small positive number. Then, the power spectrum for tensor perturbations is also almost scale-invariant with the same red tilt as the scalar perturbations, and the tensor to scalar ratio is expected to be r ? 9 10{sup ?4}. Finally, for the predicted amplitude of the scalar perturbations to agree with observations, the critical density in loop quantum cosmology must be of the order ?{sub c} ? 10{sup ?9}?{sub Pl}.

  4. Soldiers, robots and local population -modeling cross-cultural values in a peacekeeping scenario

    E-Print Network [OSTI]

    Blni, Ladislau L

    not about general trends but about the ongoing scenario. The model had been designed to provide input as part of a training or assessment tool. 2. The Market Checkpoint Scenario To anchor our modeling work in peacekeeping missions. The scenario takes place at a military checkpoint at the entrance of a busy market. We

  5. Scenario Analysis of Peak Demand Savings for Commercial Buildings with Thermal Mass in California

    SciTech Connect (OSTI)

    Yin, Rongxin; Kiliccote, Sila; Piette, Mary Ann; Parrish, Kristen

    2010-05-14

    This paper reports on the potential impact of demand response (DR) strategies in commercial buildings in California based on the Demand Response Quick Assessment Tool (DRQAT), which uses EnergyPlus simulation prototypes for office and retail buildings. The study describes the potential impact of building size, thermal mass, climate, and DR strategies on demand savings in commercial buildings. Sensitivity analyses are performed to evaluate how these factors influence the demand shift and shed during the peak period. The whole-building peak demand of a commercial building with high thermal mass in a hot climate zone can be reduced by 30percent using an optimized demand response strategy. Results are summarized for various simulation scenarios designed to help owners and managers understand the potential savings for demand response deployment. Simulated demand savings under various scenarios were compared to field-measured data in numerous climate zones, allowing calibration of the prototype models. The simulation results are compared to the peak demand data from the Commercial End-Use Survey for commercial buildings in California. On the economic side, a set of electricity rates are used to evaluate the impact of the DR strategies on economic savings for different thermal mass and climate conditions. Our comparison of recent simulation to field test results provides an understanding of the DR potential in commercial buildings.

  6. B. Mobasher, S-Y.Chen, C. Young and S. D. Rajan, "Cost-Based Design Of Residential Steel Roof Systems: A Case Study", Structural Engineering and Mechanics 8:(2) pp.165-180,1999.

    E-Print Network [OSTI]

    Mobasher, Barzin

    B. Mobasher, S-Y.Chen, C. Young and S. D. Rajan, "Cost-Based Design Of Residential Steel Roof OF RESIDENTIAL STEEL ROOF SYSTEMS: A CASE STUDY S. D. Rajan 1 , B. Mobasher 2 , S-Y.Chen 3 and C. Young 3 The cost effectiveness of steel roof systems for residential buildings is becoming increasingly apparent

  7. An Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario (Report Summary) (Presentation)

    SciTech Connect (OSTI)

    Denholm, P.; Wan, Y. H.; Hummon, M.; Mehos, M.

    2013-04-01

    This analysis evaluates CSP with TES in a scenario where California derives 33% of its electricity from renewable energy sources. It uses a commercial grid simulation tool to examine the avoided operational and capacity costs associated with CSP and compares this value to PV and a baseload generation with constant output. Overall, the analysis demonstrates several properties of dispatchable CSP, including the flexibility to generate during periods of high value and avoid generation during periods of lower value. Of note in this analysis is the fact that significant amount of operational value is derived from the provision of reserves in the case where CSP is allowed to provide these services. This analysis also indicates that the 'optimal' configuration of CSP could vary as a function of renewable penetration, and each configuration will need to be evaluated in terms of its ability to provide dispatchable energy, reserves, and firm capacity. The model can be used to investigate additional scenarios involving alternative technology options and generation mixes, applying these scenarios within California or in other regions of interest.

  8. Phenomenology of Charginos and Neutralinos in the Light Gaugino Scenario

    E-Print Network [OSTI]

    Glennys R. Farrar

    1996-08-21

    The light gaugino scenario predicts that the lighter chargino mass is less than m_W, gluino and lightest neutralino masses are <~ 1 GeV, and the dominant decay mode of charginos and non-LSP neutralinos is generically to three jets. The excess "4j" events observed by ALEPH in e+ e- annihilation at 133 GeV may be evidence that m(C_1) = 53 GeV. If so, m(N_2) = 110-121 GeV, m(N_2) = 38-63 GeV, m(N_3) = 75-68 GeV; m(sneu_e) is probably ~m(C_1). A detailed analysis of the multi-jet events is needed to exclude this possibility. Consequences for FNAL and higher energy LEP running are given.

  9. Minor Actinides Transmutation Scenario Studies in PWR with Innovative Fuels

    SciTech Connect (OSTI)

    Grouiller, J. P.; Boucher, L.; Golfier, H.; Dolci, F.; Vasile, A.; Youinou, G.

    2003-02-26

    With the innovative fuels (CORAIL, APA, MIX, MOX-UE) in current PWRs, it is theoretically possible to obtain different plutonium and minor actinides transmutation scenarios, in homogeneous mode, with a significant reduction of the waste radio-toxicity inventory and of the thermal output of the high level waste. Regarding each minor actinide element transmutation in PWRs, conclusions are : neptunium : a solution exists but the gain on the waste radio-toxicity inventory is not significant, americium : a solution exists but it is necessary to transmute americium with curium to obtain a significant gain, curium: Cm244 has a large impact on radiation and residual power in the fuel cycle; a solution remains to be found, maybe separating it and keeping it in interim storage for decay into Pu240 able to be transmuted in reactor.

  10. Scenarios for the ATF2 Ultra-Low Betas Proposal

    SciTech Connect (OSTI)

    Marin, Eduardo; Tomas, Rogelio; Bambade, Philip; Kuroda, Shigeru; Okugi, Toshiyuki; Tauchi, Toshiaki; Terunuma, Nobuhiro; Urakawa, Junji; Parker, Brett; Seryi, Andrei; White, Glen; Woodley, Mark; /SLAC

    2012-06-29

    The current ATF2 Ultra-Low beta proposal was designed to achieve 20nm vertical IP beam size without considering the multipolar components of the FD magnets. In this paper we describe different scenarios that avoid the detrimental effect of these multipolar errors to the beam size at the interaction point (IP). The simplest approach consists in modifying the optics, but other solutions are studied as the introduction of super-conducting wigglers to reduce the emittance or the replacement of the normal-conducting focusing quadrupole in the Final Doublet (NC-QF1FF) with a super-conducting quadrupole one (SC-QF1FF). These are fully addressed in the paper.

  11. Scenarios For The ATF2 Ultra-Low Betas Proposal

    SciTech Connect (OSTI)

    Marin E.; Parker B.; Tomas R. Bambade Kuroda S. Okugi T. Tauchi T. Terunuma N. Urakawa J. Seryi A. White G. Woodley M.

    2010-05-23

    The current ATF2 Ultra-Low beta proposal was designed to achieve 20nm vertical IP beam size without considering the multipolar components of the FD magnets. In this paper we describe different scenarios that avoid the detrimental effect of these multipolar errors to the beam size at the interaction point (IP). The simplest approach consists in modifying the optics, but other solutions are studied as the introduction of super-conducting wigglers to reduce the emittance or the replacement of the normal-conducting focusing quadrupole in the Final Doublet (NC-QF1FF) with a super-conducting quadrupole one (SC-QF1FF). These are fully addressed in the paper.

  12. A Look At Three Different Scenarios for Bulge Formation

    E-Print Network [OSTI]

    Rychard J. Bouwens; Laura Cayon; Joseph Silk

    1998-12-10

    In this paper, we present three qualitatively different scenarios for bulge formation: a secular evolution model in which bulges form after disks and undergo several central starbursts, a primordial collapse model in which bulges and disks form simultaneously, and an early bulge formation model in which bulges form prior to disks. We normalize our models to the local z=0 observations of de Jong & van der Kruit (1994) and Peletier & Balcells (1996) and make comparisons with high redshift observations. We consider model predictions relating directly to bulge-to-disk properties. As expected, smaller bulge-to-disk ratios and bluer bulge colors are predicted by the secular evolution model at all redshifts, although uncertainties in the data are currently too large to differentiate strongly between the models.

  13. Combined Estimation of Hydrogeologic Conceptual Model, Parameter, and Scenario Uncertainty with Application to Uranium Transport at the Hanford Site 300 Area

    SciTech Connect (OSTI)

    Meyer, Philip D.; Ye, Ming; Rockhold, Mark L.; Neuman, Shlomo P.; Cantrell, Kirk J.

    2007-07-30

    This report to the Nuclear Regulatory Commission (NRC) describes the development and application of a methodology to systematically and quantitatively assess predictive uncertainty in groundwater flow and transport modeling that considers the combined impact of hydrogeologic uncertainties associated with the conceptual-mathematical basis of a model, model parameters, and the scenario to which the model is applied. The methodology is based on a n extension of a Maximum Likelihood implementation of Bayesian Model Averaging. Model uncertainty is represented by postulating a discrete set of alternative conceptual models for a site with associated prior model probabilities that reflect a belief about the relative plausibility of each model based on its apparent consistency with available knowledge and data. Posterior model probabilities are computed and parameter uncertainty is estimated by calibrating each model to observed system behavior; prior parameter estimates are optionally included. Scenario uncertainty is represented as a discrete set of alternative future conditions affecting boundary conditions, source/sink terms, or other aspects of the models, with associated prior scenario probabilities. A joint assessment of uncertainty results from combining model predictions computed under each scenario using as weight the posterior model and prior scenario probabilities. The uncertainty methodology was applied to modeling of groundwater flow and uranium transport at the Hanford Site 300 Area. Eight alternative models representing uncertainty in the hydrogeologic and geochemical properties as well as the temporal variability were considered. Two scenarios represent alternative future behavior of the Columbia River adjacent to the site were considered. The scenario alternatives were implemented in the models through the boundary conditions. Results demonstrate the feasibility of applying a comprehensive uncertainty assessment to large-scale, detailed groundwater flow and transport modeling and illustrate the benefits of the methodology I providing better estimates of predictive uncertiay8, quantitative results for use in assessing risk, and an improved understanding of the system behavior and the limitations of the models.

  14. Bayesian derivation of plasma equilibrium distribution function for tokamak scenarios and the associated Landau collision operator

    E-Print Network [OSTI]

    Di Troia, Claudio

    2015-01-01

    A class of parametric distribution functions has been proposed in [C.DiTroia, Plasma Physics and Controlled Fusion,54,2012] as equilibrium distribution functions (EDFs) for charged particles in fusion plasmas, representing supra-thermal particles in anisotropic equilibria for Neutral Beam Injection, Ion Cyclotron Heating scenarios. Moreover, the EDFs can also represent nearly isotropic equilibria for Slowing-Down $alpha$ particles and core thermal plasma populations. These EDFs depend on constants of motion (COMs). Assuming an axisymmetric system with no equilibrium electric field, the EDF depends on the toroidal canonical momentum $P_\\phi$, the kinetic energy $w$ and the magnetic moment \\mu. In the present work, the EDFs are obtained from first principles and general hypothesis. The derivation is probabilistic and makes use of the Bayes' Theorem. The bayesian argument allows us to describe how far from the prior probability distribution function (pdf), e.g. Maxwellian, the plasma is, based on the information...

  15. Quantitative similarity analysis of small-break loss-of-coolant accident scenarios

    SciTech Connect (OSTI)

    Prosek, A.; Kljenak, I.; Mavko, B. [Univ. of Ljubljana (Slovenia). Jozef Stefan Inst.

    1996-07-01

    Classifications of small-break loss-of-coolant accidents based on objective quantitative similarity analysis are proposed. Accident scenarios were simulated in a two-loop pressurized water reactor plant with the RELAP5/MOD3.1 computer code for break sizes ranging from 1.27 cm (0.5 in.) to 15.2 cm (6 in.), with different availability of auxiliary feedwater system or reactor coolant pump trip delay. Similarities between different accident simulations were evaluated by comparing relevant time-dependent parameters with fast Fourier transform and correlation methods. Quantification of similarity between accident simulations could eventually lead to further development of the Code Scaling, Applicability and Uncertainty methodology.

  16. Use of Service Curve for Resource Reservation in Wired-cum-Wireless Scenario

    E-Print Network [OSTI]

    Misra, Nitul Dutta; Iti Saha

    2010-01-01

    In a network, arrival process is converted into departure process through network elements. The departure process suffer propagation delay in the link, processing delay at the network elements like router and data loss due to buffer overflow or congestion. For providing guaranteed service resources need to be reserved before conversation takes place. To reserve such resources estimation of them are indispensable. The idea of service curve gives beforehand deterministic value of these parameters. In this paper, we aim to minimum and maximum buffer space required in the router, minimum link capacity required to guarantee a pre-specified end-to-end delay for an ongoing session in a wired-cum-wireless scenario by analyzing minimum and maximum service curve. We assume that the network we are analyzing is an IP based mobile network. The findings of the work are presented in the form of tables which can be used for resource reservation to offer quality service to end-users.

  17. Quantification of the Potential Gross Economic Impacts of Five Methane Reduction Scenarios

    SciTech Connect (OSTI)

    Keyser, David; Warner, Ethan; Curley, Christina

    2015-04-23

    Methane (CH4) is a potent greenhouse gas that is released from the natural gas supply chain into the atmosphere as a result of fugitive emissions1 and venting2 . We assess five potential CH4 reduction scenarios from transmission, storage, and distribution (TS&D) using published literature on the costs and the estimated quantity of CH4 reduced. We utilize cost and methane inventory data from ICF (2014) and Warner et al. (forthcoming) as well as data from Barrett and McCulloch (2014) and the American Gas Association (AGA) (2013) to estimate that the implementation of these measures could support approximately 85,000 jobs annually from 2015 to 2019 and reduce CH4 emissions from natural gas TS&D by over 40%. Based on standard input/output analysis methodology, measures are estimated to support over $8 billion in GDP annually over the same time period and allow producers to recover approximately $912 million annually in captured gas.

  18. Analyzing and Comparing Biomass Feedstock Supply Systems in China: Corn Stover and Sweet Sorghum Case Studies

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

    Ren, Lantian; Cafferty, Kara; Roni, Mohammad; Jacobson, Jacob; Xie, Guanghui; Ovard, Leslie; Wright, Christopher

    2015-06-11

    This paper analyzes the rural Chinese biomass supply system and models supply chain operations according to U.S. concepts of logistical unit operations: harvest and collection, storage, transportation, preprocessing, and handling and queuing. In this paper, we quantify the logistics cost of corn stover and sweet sorghum in China under different scenarios. We analyze three scenarios of corn stover logistics from northeast China and three scenarios of sweet sorghum stalks logistics from Inner Mongolia in China. The case study estimates that the logistics cost of corn stover and sweet sorghum stalk to be $52.95/dry metric ton and $52.64/dry metric ton, respectively,morefor the current labor-based biomass logistics system. However, if the feedstock logistics operation is mechanized, the cost of corn stover and sweet sorghum stalk decreases to $36.01/dry metric ton and $35.76/dry metric ton, respectively. The study also includes a sensitivity analysis to identify the cost factors that cause logistics cost variation. Results of the sensitivity analysis show that labor price has the most influence on the logistics cost of corn stover and sweet sorghum stalk, with a variation of $6 to $12/dry metric ton.less

  19. California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning

    E-Print Network [OSTI]

    Eto, Joseph; Stovall, John P.

    2003-01-01

    Impacts of Electricity Transmission Scenario Analysis forImpacts of Electricity Transmission Scenario Analysis forhas also commissioned Electricity Transmission Research and

  20. Nature-based tourism on private ranches in south Texas: a case study of management trade-offs associated with enterprise diversification on the Kenedy Ranch

    E-Print Network [OSTI]

    Trail, Tamara Swindle

    1997-01-01

    of the potential trade-offs associated with habitat management for multiple objectives. This research employs a case study approach to analyze the ecological and economic trade-offs associated with managing lands for multiple objectives, specifically the conflicts...

  1. Pre-big bang scenario and the WZW model

    E-Print Network [OSTI]

    Marcel Jacon

    2015-06-09

    Extensive studies of pre-big bang scenarios for Bianchi-I type universe have been made, at various approximation levels. Knowing the solution of the equations for the post-big bang universe, the symmetries of the equations (time reversal and scale dual transformations) allow the study of pre-big bang solutions. However, the proposed solutions are unable to explain the actually observed acceleration of the expantion of the universe.Calculating the $\\beta $ equations for the Non-Linear Sigma model, at the first loop approximation and imposing conformal invariance at this level, lead to equations of motion that simply state that the curvature must be nil, which in turn allows the utilization of groups to solve the $\\beta $ equations. This is what is done in the Weiss-Zumino-Witten (WZW) model. In this article, I will show that using the WZW model on $SU_2$, some of the difficulties encountered in the determination of the pre and post big-bang solutions are eliminated. Combining the general results obtained with the $\\Lambda $CDM parameters lead to realistic solutions for the evolution of the universe, giving an explanation to the actually observed acceleration of the expansion in terms ot the dilation field $\\phi $(t).

  2. A first linear cosmological structure formation scenario under extended gravity

    E-Print Network [OSTI]

    X. Hernandez; M. A. Jimenez

    2013-07-02

    The inability of primordial baryonic density fluctuations, as observed in the cosmic microwave background (CMB), to grow into the present day astronomical structures is well established, under Newtonian and Einsteinian gravity. It is hence customary to assume the existence of an underlying dark matter component with density fluctuations, $\\Delta(M)$, having amplitudes much larger than what CMB observations imply for the baryons. This is in fact one of the recurrent arguments used in support of the dark matter hypothesis. In this letter we prove that the same extended theory of gravity which has been recently shown to accurately reproduce gravitational lensing observations, in absence of any dark matter, and which in the low velocity regime converges to a MONDian force law, implies a sufficiently amplified self-gravity to allow purely baryonic fluctuations with amplitudes in accordance with CMB constraints to naturally grow into the $z=0$ astrophysical structures detected. The linear structure formation scenario which emerges closely resembles the standard concordance cosmology one, as abundantly calibrated over the last decade to match multiple observational constraints at various redshifts. However, in contrast with what occurs in the concordance cosmology, this follows not from a critical dependence on initial conditions and the fine tuning of model parameters, but from the rapid convergence of highly arbitrary initial conditions onto a well defined $\\Delta(M,z)$ attractor solution.

  3. Global Fits of the Minimal Universal Extra Dimensions Scenario

    SciTech Connect (OSTI)

    Bertone, Gianfranco; Kong, Kyoungchul; de Austri, Roberto Ruiz; Trotta, Roberto; /Imperial Coll., London

    2012-06-22

    In theories with Universal Extra-Dimensions (UED), the {gamma}{sub 1} particle, first excited state of the hypercharge gauge boson, provides an excellent Dark Matter (DM) candidate. Here we use a modified version of the SuperBayeS code to perform a Bayesian analysis of the minimal UED scenario, in order to assess its detectability at accelerators and with DM experiments. We derive in particular the most probable range of mass and scattering cross sections off nucleons, keeping into account cosmological and electroweak precision constraints. The consequences for the detectability of the {gamma}{sub 1} with direct and indirect experiments are dramatic. The spin-independent cross section probability distribution peaks at {approx} 10{sup -11} pb, i.e. below the sensitivity of ton-scale experiments. The spin-dependent cross-section drives the predicted neutrino flux from the center of the Sun below the reach of present and upcoming experiments. The only strategy that remains open appears to be direct detection with ton-scale experiments sensitive to spin-dependent cross-sections. On the other hand, the LHC with 1 fb{sup -1} of data should be able to probe the current best-fit UED parameters.

  4. Preliminary analyses of scenarios for potential human interference for repositories in three salt formations

    SciTech Connect (OSTI)

    Not Available

    1985-10-01

    Preliminary analyses of scenarios for human interference with the performance of a radioactive waste repository in a deep salt formation are presented. The following scenarios are analyzed: (1) the U-Tube Connection Scenario involving multiple connections between the repository and the overlying aquifer system; (2) the Single Borehole Intrusion Scenario involving penetration of the repository by an exploratory borehole that simultaneously connects the repository with overlying and underlying aquifers; and (3) the Pressure Release Scenario involving inflow of water to saturate any void space in the repository prior to creep closure with subsequent release under near lithostatic pressures following creep closure. The methodology to evaluate repository performance in these scenarios is described and this methodology is applied to reference systems in three candidate formations: bedded salt in the Palo Duro Basin, Texas; bedded salt in the Paradox Basin, Utah; and the Richton Salt Dome, Mississippi, of the Gulf Coast Salt Dome Basin.

  5. Scenarios for Benefits Analysis of Energy Research, Development,Demonstration and Deployment

    SciTech Connect (OSTI)

    Gumerman, Etan; Marnay, Chris

    2005-09-07

    For at least the last decade, evaluation of the benefits of research, development, demonstration, and deployment (RD3) by the U.S. Department of Energy has been conducted using deterministic forecasts that unrealistically presume we can precisely foresee our future 10, 25,or even 50 years hence. This effort tries, in a modest way, to begin a process of recognition that the reality of our energy future is rather one rife with uncertainty. The National Energy Modeling System (NEMS) is used by the Department of Energy's Office of Energy Efficiency and Renewable Energy (EE) and Fossil Energy (FE) for their RD3 benefits evaluation. In order to begin scoping out the uncertainty in these deterministic forecasts, EE and FE designed two futures that differ significantly from the basic NEMS forecast. A High Fuel Price Scenario and a Carbon Cap Scenario were envisioned to forecast alternative futures and the associated benefits. Ernest Orlando Lawrence Berkeley National Laboratory (LBNL) implemented these scenarios into its version of NEMS,NEMS-LBNL, in late 2004, and the Energy Information Agency created six scenarios for FE in early 2005. The creation and implementation of the EE-FE scenarios are explained in this report. Both a Carbon Cap Scenario and a High Fuel Price Scenarios were implemented into the NEMS-LBNL. EIA subsequently modeled similar scenarios using NEMS. While the EIA and LBNL implementations were in some ways rather different, their forecasts do not significantly diverge. Compared to the Reference Scenario, the High Fuel Price Scenario reduces energy consumption by 4 percent in 2025, while in the EIA fuel price scenario (known as Scenario 4) reduction from its corresponding reference scenario (known as Scenario 0) in 2025 is marginal. Nonetheless, the 4 percent demand reduction does not lead to other cascading effects that would significantly differentiate the two scenarios. The LBNL and EIA carbon scenarios were mostly identical. The only major difference was that LBNL started working with the AEO 2004NEMS code and EIA was using AEO 2005 NEMS code. Unlike the High Price Scenario the Carbon Cap scenario gives a radically different forecast than the Reference Scenario. NEMS-LBNL proved that it can handle these alternative scenarios. However, results are price inelastic (for both oil and natural gas prices) within the price range evaluated. Perhaps even higher price paths would lead to a distinctly different forecast than the Reference Scenario. On the other hand, the Carbon Cap Scenario behaves more like an alternative future. The future in the Carbon Cap Scenario has higher electricity prices, reduced driving, more renewable capacity, and reduced energy consumption. The next step for this work is to evaluate the EE benefits under each of the three scenarios. Comparing those three sets of predicted benefits will indicate how much uncertainty is inherent within this sort of deterministic forecasting.

  6. The Importance of High Temporal Resolution in Modeling Renewable Energy Penetration Scenarios

    E-Print Network [OSTI]

    Nicolosi, Marco

    2011-01-01

    for Competitive Renewable Energy Zones in Texas, Report,Supply, National Renewable Energy Laboratory. Sensfu, F. ,in Modeling Renewable Energy Penetration Scenarios Marco

  7. China's sustainable energy future: Scenarios of energy and carbon emissions (Summary)

    E-Print Network [OSTI]

    2004-01-01

    energy use. Chinas Sustainable Energy Future Summary next31 -ii- Chinas Sustainable Energy Future Executive Summarystudy, entitled Chinas Sustainable Energy Future: Scenarios

  8. Numerical test of the Gribov-Zwanziger scenario in Landau gauge

    E-Print Network [OSTI]

    Attilio Cucchieri; Tereza Mendes

    2010-01-14

    We review the status of lattice simulations of gluon and ghost propagators in Landau gauge, testing predictions of the Gribov-Zwanziger confinement scenario.

  9. 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and...

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

    2 Summary Presentation 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting Discussion Group 2 Summary Presentation 2010-2025 Senario Analysis...

  10. Comparing urban solid waste recycling from the viewpoint of urban metabolism based on physical input-output model: A case of Suzhou in China

    SciTech Connect (OSTI)

    Liang Sai; Zhang Tianzhu

    2012-01-15

    Highlights: Black-Right-Pointing-Pointer Impacts of solid waste recycling on Suzhou's urban metabolism in 2015 are analyzed. Black-Right-Pointing-Pointer Sludge recycling for biogas is regarded as an accepted method. Black-Right-Pointing-Pointer Technical levels of reusing scrap tires and food wastes should be improved. Black-Right-Pointing-Pointer Other fly ash utilization methods should be exploited. Black-Right-Pointing-Pointer Secondary wastes from reusing food wastes and sludge should be concerned. - Abstract: Investigating impacts of urban solid waste recycling on urban metabolism contributes to sustainable urban solid waste management and urban sustainability. Using a physical input-output model and scenario analysis, urban metabolism of Suzhou in 2015 is predicted and impacts of four categories of solid waste recycling on urban metabolism are illustrated: scrap tire recycling, food waste recycling, fly ash recycling and sludge recycling. Sludge recycling has positive effects on reducing all material flows. Thus, sludge recycling for biogas is regarded as an accepted method. Moreover, technical levels of scrap tire recycling and food waste recycling should be improved to produce positive effects on reducing more material flows. Fly ash recycling for cement production has negative effects on reducing all material flows except solid wastes. Thus, other fly ash utilization methods should be exploited. In addition, the utilization and treatment of secondary wastes from food waste recycling and sludge recycling should be concerned.

  11. Scenario analysis of hybrid class 3-7 heavy vehicles.

    SciTech Connect (OSTI)

    An, F.; Stodolsky, F.; Vyas, A.; Cuenca, R.; Eberhardt, J. J.

    1999-12-23

    The effects of hybridization on heavy-duty vehicles are not well understood. Heavy vehicles represent a broader range of applications than light-duty vehicles, resulting in a wide variety of chassis and engine combinations, as well as diverse driving conditions. Thus, the strategies, incremental costs, and energy/emission benefits associated with hybridizing heavy vehicles could differ significantly from those for passenger cars. Using a modal energy and emissions model, they quantify the potential energy savings of hybridizing commercial Class 3-7 heavy vehicles, analyze hybrid configuration scenarios, and estimate the associated investment cost and payback time. From the analysis, they conclude that (1) hybridization can significantly reduce energy consumption of Class 3-7 heavy vehicles under urban driving conditions; (2) the grid-independent, conventional vehicle (CV)-like hybrid is more cost-effective than the grid-dependent, electric vehicle (EV)-like hybrid, and the parallel configuration is more cost-effective than the series configuration; (3) for CV-like hybridization, the on-board engine can be significantly downsized, with a gasoline or diesel engine used for SUVs perhaps being a good candidate for an on-board engine; (4) over the long term, the incremental cost of a CV-like, parallel-configured Class 3-4 hybrid heavy vehicle is about %5,800 in the year 2005 and $3,000 in 2020, while for a Class 6-7 truck, it is about $7,100 in 2005 and $3,300 in 2020; and (5) investment payback time, which depends on the specific type and application of the vehicle, averages about 6 years under urban driving conditions in 2005 and 2--3 years in 2020.

  12. Farmers' knowledge of soils in relation to cropping practices: A case study of farmers in upland rice based slash-and-burn

    E-Print Network [OSTI]

    van Kessel, Chris

    Farmers' knowledge of soils in relation to cropping practices: A case study of farmers in upland Understanding indigenous knowledge of soils has come to be seen as essential in understanding the local in relation to soil quality and cropping practices. Most farmers interviewed distinguished two or more soils

  13. Social Skills Interventions for Students with Challenging Behavior: Quality of the Evidence Base and a Single-Case Research Meta-Analysis

    E-Print Network [OSTI]

    Hutchins, Nancy Sanchez

    2014-07-17

    with autism spectrum disorder (ASD) who display challenging behavior and (2) conduct a single-case research (SCR) meta-analysis to determine the overall effect and the effect of potential moderators of SSIs for students with or at-risk of EBD and students...

  14. Case Study

    Office of Environmental Management (EM)

    Case Study M2M Smart Grid Investment Grant 1 An irrigation pump connected to a web---to---wireless controller designed by M2M Communications. Agricultural Demand Response Program...

  15. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy Edward

    1999-01-01

    Residential Sector Electricity Prices in California Table 2-Residential Sector Electricity Prices in California (1995$)Residential electricity prices in the Los Angeles area are currently about $0.10 per kWh, but the California

  16. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy E.

    1999-01-01

    Residential Sector Electricity Prices in CaliforniaResidential electricity prices in the Los Angeles area are currently about $0.10 per kWh, but the California

  17. A Scenario-Based Distributed Stochastic MPC for Building Temperature Regulation

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    ) system because it composes one third to half of building energy usage [1]. Model Predictive Control (MPC the temperature of rooms within a comfortable range with a predefined probability while consum- ing less energy report [12], buildings account for 40 percent of energy consumption and resources and one third

  18. Architecting a family of space tugs based on orbital transfer mission scenarios

    E-Print Network [OSTI]

    Galabova, Kalina K., 1976-

    2004-01-01

    The consequences of satellite misplacement or collision with space debris reach far beyond the realm of money. The vast number of people affected by the loss of just one spacecraft indicates the vulnerability of our society ...

  19. THE TRAVEL AND ENVIRONMENTAL IMPLICATIONS OF SHARED AUTONOMOUS VEHICLES, USING AGENT-BASED MODEL SCENARIOS

    E-Print Network [OSTI]

    Kockelman, Kara M.

    the rental) like Car2Go and ZipCar have quickly expanded, with the number of U.S. users doubling every one traveler wait times. Next, the model is run over one-hundred days, with driverless vehicles ferrying. As of September 2013, Google had logged over 500,000 miles driven on public roadways using cars equipped with self

  20. SPECTRAL BASED METHODS THAT STREAMLINE THE SEARCH FOR FAILURE SCENARIOS IN LARGE-SCALE DISTRIBUTED SYSTEMS

    E-Print Network [OSTI]

    the detection of failure sce- narios in distributed grid computing, cloud computing and other large scale performance deteriorates and fails. KEY WORDS grid computing, cloud computing, failure, spectral expan- sion systems such as computing grids and commercial cloud systems has made mass computing services available

  1. Summary Report of the OOPSLA 2000 Workshop on Scenario-Based Round-Trip Engineering

    E-Print Network [OSTI]

    Keller, Rudolf K.

    Rudolf K. Keller Kai Koskimies Tampere University of Technology Universit de Montral Tampere University, succ. Centre-ville P.O. Box 553 33101 Tampere, Finland Montreal (Quebec) H3C 3J7, Canada 33101 Tampere

  2. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy E.

    1999-01-01

    gases; NC = natural gas-fired powerplant; O = other fuelpowerplant emissions of criteria pollutants and greenhouse gasespowerplant electricity for BEV recharging is from coal and natural gas

  3. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy Edward

    1999-01-01

    = natural gas-fired powerplant; O = other fuel powerplant. aF = fuel oil-fired powerplant; GHGs = greenhouse gases; NGpowerplant emissions of criteria pollutants and greenhouse gases

  4. Future impact of traffic emissions on atmospheric ozone and OH based on two scenarios

    E-Print Network [OSTI]

    2012-01-01

    data/ edgar 32ft2000/documentation/index-2.html, Joint Research Center, Institute for Environment and Sustainability (JRC-IES), Climate Change

  5. A Multi-Purpose Scenario-based Simulator for Smart House Environments

    E-Print Network [OSTI]

    Jahromi, Zahra Forootan; Manashty, Ali Reza

    2011-01-01

    Developing smart house systems has been a great challenge for researchers and engineers in this area because of the high cost of implementation and evaluation process of these systems, while being very time consuming. Testing a designed smart house before actually building it is considered as an obstacle towards an efficient smart house project. This is because of the variety of sensors, home appliances and devices available for a real smart environment. In this paper, we present the design and implementation of a multi-purpose smart house simulation system for designing and simulating all aspects of a smart house environment. This simulator provides the ability to design the house plan and different virtual sensors and appliances in a two dimensional model of the virtual house environment. This simulator can connect to any external smart house remote controlling system, providing evaluation capabilities to their system much easier than before. It also supports detailed adding of new emerging sensors and devi...

  6. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy E.

    1999-01-01

    High Production Volume Historical Oil Prices and CEC Delphithat it is replacing. Historical Oil Prices and CEO Delphi

  7. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy Edward

    1999-01-01

    Volume Figure 7-1: Historical Oil Prices and CEC Delphireplacing. Figure 7-1: Historical Oil Prices and CEC Delphi

  8. Predicting GIS-Based Spatially Distributed Unit-Hydrograph from Urban Development Scenarios.

    E-Print Network [OSTI]

    Kute, Abhijeet

    2007-11-27

    Spatially distributed Unit-Hydrograph model is implemented using a Geographical Information System (GIS) in this study to investigate the effects of how increasing impervious areas may influence surface runoff in urban ...

  9. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy Edward

    1999-01-01

    to costs for vehicles and emissions. Also, infrastructureN.E. Delucchi (1997) Vehicle Emissions: Author Estimatec (restrictions on motor vehicle emissions and drew attention

  10. Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework

    E-Print Network [OSTI]

    Lipman, Timothy E.

    1999-01-01

    to costs for vehicles and emissions. Also, infrastructure3,2321a Delucchi (1997) Vehicle Emissions: Author Estimaterestrictions on motor vehicle emissions and drew attention

  11. THE EMERGENCE OF INEQUALITY IN SMALL-SCALE SOCIETIES: SIMPLE SCENARIOS AND AGENT-BASED SIMULATIONS

    E-Print Network [OSTI]

    Smith, Eric Alden

    institutionalized political and economic inequality--for most of our species' history. Non-egalitarian societies

  12. On the Rle of a Torsion-like Field in a Scenario for the Spin Hall Effect

    E-Print Network [OSTI]

    C. F. L. Godinho; J. A. Helayl Neto

    2014-12-13

    Starting from an action that describes a Dirac fermion, we propose and analyze a model based on a low-relativistic Pauli equation coupled to a torsion-like term to study Spin Hall Effect (SHE). We point out a very particular connection between the modified Pauli equation and the (SHE), where what we refer to torsion as field playing an important r\\^ole in the spin-orbit coupling process. In this scenario, we present a proposal of a spin-type current, considering the tiny contributions of torsion in connection with geometrical properties of the material.

  13. Intensity, duration, and frequency of precipitation extremes under 21st-century warming scenarios

    SciTech Connect (OSTI)

    Kao, Shih-Chieh [ORNL; Ganguly, Auroop R [ORNL

    2011-01-01

    Recent research on the projection of precipitation extremes has either focused on conceptual physical mechanisms that generate heavy precipitation or rigorous statistical methods that extrapolate tail behavior. However, informing both climate prediction and impact assessment requires concurrent physically and statistically oriented analysis. A combined examination of climate model simulations and observation-based reanalysis data sets suggests more intense and frequent precipitation extremes under 21st-century warming scenarios. Utilization of statistical extreme value theory and resampling-based uncertainty quantification combined with consideration of the Clausius-Clapeyron relationship reveals consistently intensifying trends for precipitation extremes at a global-average scale. However, regional and decadal analyses reveal specific discrepancies in the physical mechanisms governing precipitation extremes, as well as their statistical trends, especially in the tropics. The intensifying trend of precipitation extremes has quantifiable impacts on intensity-duration-frequency curves, which in turn have direct implications for hydraulic engineering design and water-resources management. The larger uncertainties at regional and decadal scales suggest the need for caution during regional-scale adaptation or preparedness decisions. Future research needs to explore the possibility of uncertainty reduction through higher resolution global climate models, statistical or dynamical downscaling, as well as improved understanding of precipitation extremes processes.

  14. New methodologies and scenarios for evaluating tidal current energy potential

    E-Print Network [OSTI]

    Sankaran Iyer, Abhinaya

    2012-06-25

    Transition towards a low carbon economy raises concerns of loss of security of supply with high penetrations of renewable generation displacing traditional fossil fuel based generation. While wind and wave resources are ...

  15. North Korea: Scenarios from the Perspective of Refugee Displacement

    E-Print Network [OSTI]

    Mahr, Christian F.

    Some 10,000 to 300,000 citizens of the Democratic People's Republic of Korea (DPRK) are currently reported to be living illegally in the Northeastern provinces of China. Based on bilateral treaties between the two countries, ...

  16. 9/12/2000 Elements of Software Fall 2000 1 Scenario Analysis

    E-Print Network [OSTI]

    Browne, James C.

    1 9/12/2000 Elements of Software Fall 2000 1 Scenario Analysis Alternative process for design and common attributes. 7. Define object states and attribute domains from analysis of scripts. 9/12/2000 Elements of Software Fall 2000 2 Scenario Analysis Important Concepts 1. contracts agreements among

  17. Energy Policy 33 (2005) 11171142 Using energy scenarios to explore alternative energy

    E-Print Network [OSTI]

    Kammen, Daniel M.

    2005-01-01

    Energy Policy 33 (2005) 11171142 Using energy scenarios to explore alternative energy pathways from California's energy crisis. Three alternative scenarios represent contexts where clean energy for achieving alternative energy pathways in California. A combined approach that brings together individual

  18. On the Energy Efficiency of Cognitive Radios -A Study of the Ad Hoc Wireless LAN Scenario

    E-Print Network [OSTI]

    Namboodiri, Vinod

    On the Energy Efficiency of Cognitive Radios - A Study of the Ad Hoc Wireless LAN Scenario Anm can save energy over a conventional radio in the Ad Hoc Wireless LAN scenario. The interplay between wireless spectrum, has however, resulted in researchers overlooking the importance of energy consumption

  19. Are Cognitive Radios Energy Efficient? A Study of the Wireless LAN Scenario

    E-Print Network [OSTI]

    Namboodiri, Vinod

    Are Cognitive Radios Energy Efficient? A Study of the Wireless LAN Scenario Vinod Namboodiri can save energy over a conventional radio in the Ad Hoc Wireless LAN scenario. The interplay between, another major factor of energy consumption in wireless devices. Higher contention for the medium typically

  20. Emmanuel Joffrin XXth Fusion Energy Conference, November 2004 1 The hybrid scenario in JET

    E-Print Network [OSTI]

    Emmanuel Joffrin XXth Fusion Energy Conference, November 2004 1 The hybrid scenario in JET. Staebler, T. Tala, A. Tuccillo, K.-D. Zastrow and JET-EFDA Contributors to the Work Programme. Outline: - Introduction to the hybrid scenario in JET - Physics analysis (MHD, current, transport) - Projections to ITER

  1. Fraud Detection in ERP Systems using Scenario Asadul K. Islam1

    E-Print Network [OSTI]

    Flegel, Ulrich

    112 Fraud Detection in ERP Systems using Scenario Matching Asadul K. Islam1 , Malcom Corney1.raub, ulrich.flegel}@sap.com Abstract. ERP systems generally implement controls to prevent certain common kinds of fraudulent activity in ERP systems. We include the description of six fraud scenarios and the process

  2. Sustainable Transport Illustrative Scenarios Tool | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEuropeEnergySustainability Center ofCase studiesIllustrative

  3. Sustainable Transport Illustrative Scenarios Tool | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEuropeEnergySustainability Center ofCase

  4. SU-E-T-129: Dosimetric Evaluation of the Impact of Density Correction On Dose Calculation of Breast Cancer Treatment: A Study Based On RTOG 1005 Cases

    SciTech Connect (OSTI)

    Li, J; Yu, Y

    2014-06-01

    Purpose: RTOG 1005 requires density correction in the dose calculation of breast cancer radiation treatment. The aim of the study was to evaluate the impact of density correction on the dose calculation. Methods: Eight cases were studied, which were planned on an XiO treatment planning system with pixel-by-pixel density correction using a superposition algorithm, following RTOG 1005 protocol requirements. Four were protocol Arm 1 (standard whole breast irradiation with sequential boost) cases and four were Arm 2 (hypofractionated whole breast irradiation with concurrent boost) cases. The plans were recalculated with the same monitor units without density correction. Dose calculations with and without density correction were compared. Results: Results of Arm 1 and Arm 2 cases showed similar trends in the comparison. The average differences between the calculations with and without density correction (difference = Without - With) among all the cases were: -0.82 Gy (range: -2.65??0.18 Gy) in breast PTV Eval D95, ?0.75 Gy (range: ?1.23?0.26 Gy) in breast PTV Eval D90, ?1.00 Gy (range: ?2.46??0.29 Gy) in lumpectomy PTV Eval D95, ?0.78 Gy (range: ?1.30?0.11 Gy) in lumpectomy PTV Eval D90, ?0.43% (range: ?0.95??0.14%) in ipsilateral lung V20, ?0.81% (range: ?1.62??0.26%) in V16, ?1.95% (range: ?4.13??0.84%) in V10, ?2.64% (?5.55??1.04%) in V8, ?4.19% (range: ?6.92??1.81%) in V5, and ?4.95% (range: ?7.49??2.01%) in V4, respectively. The differences in other normal tissues were minimal. Conclusion: The effect of density correction was observed in breast target doses (an average increase of ?1 Gy in D95 and D90, compared to the calculation without density correction) and exposed ipsilateral lung volumes in low dose region (average increases of ?4% and ?5% in V5 and V4, respectively)

  5. A new scenario framework for climate change research: The concept of Shared Climate Policy Assumptions

    SciTech Connect (OSTI)

    Kriegler, Elmar; Edmonds, James A.; Hallegatte, Stephane; Ebi, Kristie L.; Kram, Tom; Riahi, Keywan; Winkler, Harald; Van Vuuren, Detlef

    2014-04-01

    The paper presents the concept of shared climate policy assumptions as an important element of the new scenario framework. Shared climate policy assumptions capture key climate policy dimensions such as the type and scale of mitigation and adaptation measures. They are not specified in the socio-economic reference pathways, and therefore introduce an important third dimension to the scenario matrix architecture. Climate policy assumptions will have to be made in any climate policy scenario, and can have a significant impact on the scenario description. We conclude that a meaningful set of shared climate policy assumptions is useful for grouping individual climate policy analyses and facilitating their comparison. Shared climate policy assumptions should be designed to be policy relevant, and as a set to be broad enough to allow a comprehensive exploration of the climate change scenario space.

  6. A Framework for Assessing Cost Management System Changes: The Case of Activity-Based Costing Implementation at General Motors, 1986-1993

    E-Print Network [OSTI]

    Anderson, Shannon W.

    2002-09-10

    An opportunity to study the technical and organizational impact of management accounting system changes has emerged with companies' adoption of activity-based costing (ABC). This paper provides a structured account of ...

  7. Higgs boson searches in CP-conserving and CP-violating MSSM scenarios with the DELPHI detector

    E-Print Network [OSTI]

    DELPHI Collaboration; J. Abdallah

    2008-01-23

    This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the Minimal Supersymmetric extension of the Standard Model (MSSM). A few representative scenarios are considered, that include CP conservation and explicit CP violation in the Higgs sector. The experimental results encompass the searches for neutral Higgs bosons at LEP1 and LEP2 in final states as expected in the MSSM, as well as LEP2 searches for charged Higgs bosons and for neutral Higgs bosons decaying into hadrons independent of the quark flavour. The data reveal no significant excess with respect to background expectations. The results are translated into excluded regions of the parameter space in the various scenarios. In the CP-conserving case, these lead to limits on the masses of the lightest scalar and pseudoscalar Higgs bosons, h and A, and on tan(beta). The dependence of these limits on the top quark mass is discussed. Allowing for CP violation reduces the experimental sensitivity to Higgs bosons. It is shown that this effect depends strongly on the values of the parameters responsible for CP violation in the Higgs sector.

  8. LONG-TERM GLOBAL WATER USE PROJECTIONS USING SIX SOCIOECONOMIC SCENARIOS IN AN INTEGRATED ASSESSMENT MODELING FRAMEWORK

    SciTech Connect (OSTI)

    Hejazi, Mohamad I.; Edmonds, James A.; Clarke, Leon E.; Kyle, G. Page; Davies, Evan; Chaturvedi, Vaibhav; Wise, Marshall A.; Patel, Pralit L.; Eom, Jiyong; Calvin, Katherine V.; Moss, Richard H.; Kim, Son H.

    2014-01-19

    In this paper, we assess future water demands for the agricultural (irrigation and livestock), energy (electricity generation, primary energy production and processing), industrial (manufacturing and mining), and municipal sectors, by incorporating water demands into a technologically-detailed global integrated assessment model of energy, agriculture, and climate change the Global Change Assessment Model (GCAM). Base-year water demandsboth gross withdrawals and net consumptive useare assigned to specific modeled activities in a way that maximizes consistency between bottom-up estimates of water demand intensities of specific technologies and practices, and top-down regional and sectoral estimates of water use. The energy, industrial, and municipal sectors are represented in fourteen geopolitical regions, with the agricultural sector further disaggregated into as many as eighteen agro-ecological zones (AEZs) within each region. We assess future water demands representing six socioeconomic scenarios, with no constraints imposed by future water supplies. The scenarios observe increases in global water withdrawals from 3,578 km3 year-1 in 2005 to 5,987 8,374 km3 year-1 in 2050, and to 4,719 12,290 km3 year-1 in 2095. Comparing the projected total regional water withdrawals to the historical supply of renewable freshwater, the Middle East exhibits the highest levels of water scarcity throughout the century, followed by India; water scarcity increases over time in both of these regions. In contrast, water scarcity improves in some regions with large base-year electric sector withdrawals, such as the USA and Canada, due to capital stock turnover and the almost complete phase-out of once-through flow cooling systems. The scenarios indicate that: 1) water is likely a limiting factor in climate change mitigation policies, 2) many regions can be expected to increase reliance on non-renewable groundwater, water reuse, and desalinated water, but they also highlight an important role for development and deployment of water conservation technologies and practices.

  9. PASSIVE SYSTEM ACCIDENT SCENARIO ANALYSIS BY Francesco Di Maio1

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    High Temperature Gas- Cooled Reactor Pebble Bed Modular (HTR-PM) under uncertain operation conditions the residual heat of the reactor core after a reactor shut-down. The model is characterized by a one-dimensional mono-phase moving fluid, whose operation is based on thermal-hydraulic (T-H) principles. The model

  10. Electricity Network Scenarios for Great Britain in 2050

    E-Print Network [OSTI]

    Elders, Ian; Ault, Graham; Galloway, Stuart; McDonald, James; Kohler, Jonathan; Leach, Matthew; Lampaditou, Efterpi

    2006-03-14

    of older CHP installations including turbine and Stirling Engine systems. In remote rural areas, biomass-based CHP systems will be popular. There will be a mixture of combustion and integrated gasification technologies depending on the particular... in generation connected to local electricity networks. Most CHP systems will be small-scale units of existing technology (e.g. microturbines or Stirling Engines...

  11. Phenomenology of ``inos'' in the Light Gaugino Scenario and Possible Evidence for a $\\sim 53$ GeV Chargino

    E-Print Network [OSTI]

    Glennys R. Farrar

    1996-12-13

    The tree-level-massless gaugino scenario predicts that the lighter chargino mass is less than m_W and that gluino and lightest neutralino masses are $\\lsi 1$ GeV. In this case the dominant decay mode of charginos and non-LSP neutralinos is generically to three jets. The excess of "4j" events with total invariant mass $\\sim 105$ GeV observed in LEP running at 130-136 GeV is noted to be consistent with pair production of $\\sim 53$ GeV charginos. Data at 161 and 172 GeV from Fall, 1996, cannot conclusively test this hypothesis (because cuts to eliminate $W^+W^-$ background reduce the efficiency significantly) but is suggestive that the signal persists.

  12. Extreme Climate Event Trends: The Data Mining and Evaluation of the A1FI Scenario for 2000???2100

    SciTech Connect (OSTI)

    Erickson III, David J; Ganguly, Auroop R; Steinhaeuser, Karsten J K; Branstetter, Marcia L; Oglesby, Robert; Hoffman, Forrest M; Buja, Lawrence

    2008-01-01

    The authors discuss the implications and resulting alterations of the hydrologic cycle as Earth climate evolves from 2000-2100. Climate simulations based on the assumptions implicit in the A1F1 scenario for the period 2000-2100 using CCSM3 are analyzed. In particular, we will assess the changes in the surface latent and sensible heat energy budget, the Indian regional water budgets including trends in the timing and duration of the Indian monsoon and the resulting impacts on mean river flow and hydroelectric power generation potential. These analyses will also be examined within the context of heat index, droughts, floods and related estimates of societal robustness and resiliency. We will interpret these new A1F1 results within the context of the previous climate simulations based on the SRES A2 and B1 scenarios forced with land cover and atmospheric CO2. Analyses of historical records in the context of the Indian Monsoon Rainfall (IMR) have suggested an evolving relation of IMR with natural climate variability caused by El Nino events. We will report on the combined effects of natural climate variability and global warming on IMR and assess the trend of extreme rain and temperature events in a warming environment.

  13. Conformal Complex Singlet Extension of the Standard Model: Scenario for Dark Matter and a Second Higgs Boson

    E-Print Network [OSTI]

    Wang, Zhi-Wei; Hanif, T; Mann, R B

    2015-01-01

    We consider a conformal complex singlet extension of the Standard Model with a Higgs portal interaction. Two different scenarios depending on whether the global $U(1)$ symmetry of the complex singlet is broken or unbroken have been studied. In the unbroken case, the decay of the complex singlet is protected by the global $U(1)$ symmetry which leads to an ideal cold dark matter candidate with approximately $100\\,\\rm{GeV}$ mass along with a significant proportion of thermal relic dark matter abundance. In the broken case, we generalize our method to incorporate a renormalization-scale optimization technique and are able to provide unique predictions for all the model's couplings and masses. We have found there exists a second Higgs boson with a mass of approximately $550\\,\\rm{GeV}$ that mixes with the known $125\\,\\rm{GeV}$ Higgs with a large mixing angle $\\sin\\theta\\approx 0.47$ consistent with current experimental limits. Furthermore, the imaginary part of the complex singlet in the broken case could provide a...

  14. The Pleistocene biogeography of eastern North America: A nonmigration scenario for deciduous forest

    SciTech Connect (OSTI)

    Loehle, C.; Iltis, H.

    1998-12-31

    The current reconstruction of the vegetation of eastern North America at the last glacial maximum postulates a very wide zone of tundra and boreal forest south of the ice. This reconstruction requires that the deciduous forest retreated far to the south. The authors believe that this reconstruction is seriously in error. Geologic evidence for glacial activity or tundra is absent from the southern Appalachians. Positive evidence for boreal forest is based on pollen identifications for Picea, Betula, and Pinus, when in reality southern members of these genera have pollen that cannot be distinguished from that of northern members. Further, pollen of typical southern species such as oaks and hickories occurs throughout profiles that past authors had labeled boreal. Pollen evidence for a far southern deciduous forest refuge is lacking. Data on endemics are particularly challenging for the scenario in which deciduous forest migrated to the south and back. The southern Appalachian region is rife with endemics that are often extreme-habitat specialists unable to migrate. The previously glaciated zone is almost completely lacking in endemics. Outlier populations, range boundaries, and absence of certain hybrids all argue against a large boreal zone. The new reconstruction postulates a cold zone no more than 75--100 miles wide south of the ice in the East.

  15. Improved Offshore Wind Resource Assessment in Global Climate Stabilization Scenarios

    SciTech Connect (OSTI)

    Arent, D.; Sullivan, P.; Heimiller, D.; Lopez, A.; Eurek, K.; Badger, J.; Jorgensen, H. E.; Kelly, M.; Clarke, L.; Luckow, P.

    2012-10-01

    This paper introduces a technique for digesting geospatial wind-speed data into areally defined -- country-level, in this case -- wind resource supply curves. We combined gridded wind-vector data for ocean areas with bathymetry maps, country exclusive economic zones, wind turbine power curves, and other datasets and relevant parameters to build supply curves that estimate a country's offshore wind resource defined by resource quality, depth, and distance-from-shore. We include a single set of supply curves -- for a particular assumption set -- and study some implications of including it in a global energy model. We also discuss the importance of downscaling gridded wind vector data to capturing the full resource potential, especially over land areas with complex terrain. This paper includes motivation and background for a statistical downscaling methodology to account for terrain effects with a low computational burden. Finally, we use this forum to sketch a framework for building synthetic electric networks to estimate transmission accessibility of renewable resource sites in remote areas.

  16. Risk-based high-throughput chemical screening and prioritization using exposure models and in vitro bioactivity assays

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

    Shin, Hyeong -Moo; Ernstoff, Alexi; Arnot, Jon A.; Wetmore, Barbara A.; Csiszar, Susan A.; Fantke, Peter; Zhang, Xianming; McKone, Thomas E.; Jolliet, Olivier; Bennett, Deborah H.

    2015-05-01

    We present a risk-based high-throughput screening (HTS) method to identify chemicals for potential health concerns or for which additional information is needed. The method is applied to 180 organic chemicals as a case study. We first obtain information on how the chemical is used and identify relevant use scenarios (e.g., dermal application, indoor emissions). For each chemical and use scenario, exposure models are then used to calculate a chemical intake fraction, or a product intake fraction, accounting for chemical properties and the exposed population. We then combine these intake fractions with use scenario-specific estimates of chemical quantity to calculate dailymoreintake rates (iR; mg/kg/day). These intake rates are compared to oral equivalent doses (OED; mg/kg/day), calculated from a suite of ToxCast in vitro bioactivity assays using in vitro-to-in vivo extrapolation and reverse dosimetry. Bioactivity quotients (BQs) are calculated as iR/OED to obtain estimates of potential impact associated with each relevant use scenario. Of the 180 chemicals considered, 38 had maximum iRs exceeding minimum OEDs (i.e., BQs > 1). For most of these compounds, exposures are associated with direct intake, food/oral contact, or dermal exposure. The method provides high-throughput estimates of exposure and important input for decision makers to identify chemicals of concern for further evaluation with additional information or more refined models.less

  17. B.3.3. The "doom scenario" (... or can we avoid it?) Page 55 The "doom scenario" (... or can we avoid it?)

    E-Print Network [OSTI]

    Boyer, Edmond

    are to be expected in the short-term. 1. Introduction The end of petrol (and natural gas) is not in itself a scenario, it is going to happen at some stage as oil and gas reserves are not unlimited. The question is: how soon or are expected to be found. However, the rate of development of emerging countries such as India and China

  18. Influencing managerial cognition and decisions using scenarios for long-range planning

    E-Print Network [OSTI]

    Phadnis, Shardul Sharad, 1978-

    2012-01-01

    This dissertation presents empirical findings related to two aspects of long-range planning: scenario planning as a planning method and cognition of planners. Long-range planning situations are encountered when designing ...

  19. A Method for Evaluating Fire After Earthquake Scenarios for Single Buildings

    Broader source: Energy.gov [DOE]

    A Method for Evaluating Fire After Earthquake Scenarios for Single Buildings Elizabeth J. Kelly and Raymond N. Tell, LANL U.S. Department of Energy Natural Phenomena Hazards Workshop Washington, D.C October 25-26, 2011

  20. The DYMO Routing Protocol in VANET Scenarios Christoph Sommer and Falko Dressler

    E-Print Network [OSTI]

    Breu, Ruth

    The DYMO Routing Protocol in VANET Scenarios Christoph Sommer and Falko Dressler Computer Networks and Communication Systems Dept. of Computer Sciences, University of Erlangen-Nuremberg, Germany {christoph.sommer

  1. Reactive greenhouse gas scenarios: Systematic exploration of uncertainties and the role of atmospheric chemistry

    E-Print Network [OSTI]

    Holmes, Christopher D.

    Reactive greenhouse gas scenarios: Systematic exploration of uncertainties and the role chemistry of reactive greenhouse gases is needed to accurately quantify the relationship between human activities and climate, and to incorporate uncertainty in our projections of greenhouse gas abundances. We

  2. Artificial Intelligence in Medicine 14 (1998) 139155 Scenario recognition for temporal reasoning in

    E-Print Network [OSTI]

    Dojat, Michel

    1998-01-01

    et de la Recherche Medicale, U438-RMN Bioclinique, Centre Hospitalier Uni6ersitaire-Pa6illon B, BP scenario S01 excerpt from the management of mechanical ventilation may have the following sequence (Fig. 1

  3. GIS-based energy consumption mapping

    E-Print Network [OSTI]

    Balta, Chrysi

    2014-11-27

    This project aims to provide a methodology to map energy consumption of the housing stock at a city level and visualise and evaluate different retrofitting scenarios. It is based on an engineering, bottom-up approach. It ...

  4. Formation Of Emergent Universe in Brane Scenario as a Consequence of Particle Creation

    E-Print Network [OSTI]

    Jibitesh Dutta; Sourav Haldar; Subenoy Chakraborty

    2015-05-07

    Here we formulate scenario of emergent universe from particle creation mechanism in spatially flat braneworld models. We consider an isotropic and homogeneous universe in Braneworld cosmology and universe is considered as a non-equilibrium thermodynamical system with dissipation due to particle creation mechanism. Assuming the particle creation rate as a function of the Hubble parameter , we formulate emergent scenario in RS2 and DGP models of Braneworld.

  5. The MacArthur Maze Fire and Roadway Collapse: A "Worst Case Scenario" for Spent Nuclear Fuel Transportation?

    SciTech Connect (OSTI)

    Bajwa, Christopher S.; Easton, Earl P.; Adkins, Harold E.; Cuta, Judith M.; Klymyshyn, Nicholas A.; Suffield, Sarah R.

    2012-07-06

    In 2007, a severe transportation accident occurred near Oakland, California, at the interchange known as the "MacArthur Maze." The accident involved a double tanker truck of gasoline overturning and bursting into flames. The subsequent fire reduced the strength of the supporting steel structure of an overhead interstate roadway causing the collapse of portions of that overpass onto the lower roadway in less than 20 minutes. The US Nuclear Regulatory Commission has analyzed what might have happened had a spent nuclear fuel transportation package been involved in this accident, to determine if there are any potential regulatory implications of this accident to the safe transport of spent nuclear fuel in the United States. This paper provides a summary of this effort, presents preliminary results and conclusions, and discusses future work related to the NRC's analysis of the consequences of this type of severe accident.

  6. SCENARIOS FOR RESTORING FLOODPLAIN ECOLOGY GIVEN CHANGES TO RIVER FLOWS UNDER CLIMATE CHANGE: CASE FROM THE SAN JOAQUIN

    E-Print Network [OSTI]

    Merenlender, Adina

    to quantify species-specific habitat availability using hydraulic modelling, spatial analysis and statistical and Stanford, 2002; Dudgeon et al., 2006). Flood protection measures such as levees and dams cause many rivers for native species and altering the flow regime, usually through dam operations to promote physical reshaping

  7. Implications of Model Structure and Detail for Utility Planning: Scenario Case Studies Using the Resource Planning Model

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLAN FOR THE SITE- SPECIFICImplications of

  8. Theoretical and Experimental Simulation of Accident Scenarios of the JET Cryogenic Components Part II: The JET LHCD Cryopump

    E-Print Network [OSTI]

    Theoretical and Experimental Simulation of Accident Scenarios of the JET Cryogenic Components Part II: The JET LHCD Cryopump

  9. Fuel Cell Power Model Version 2: Startup Guide, System Designs, and Case Studies. Modeling Electricity, Heat, and Hydrogen Generation from Fuel Cell-Based Distributed Energy Systems

    SciTech Connect (OSTI)

    Steward, D.; Penev, M.; Saur, G.; Becker, W.; Zuboy, J.

    2013-06-01

    This guide helps users get started with the U.S. Department of Energy/National Renewable Energy Laboratory Fuel Cell Power (FCPower) Model Version 2, which is a Microsoft Excel workbook that analyzes the technical and economic aspects of high-temperature fuel cell-based distributed energy systems with the aim of providing consistent, transparent, comparable results. This type of energy system would provide onsite-generated heat and electricity to large end users such as hospitals and office complexes. The hydrogen produced could be used for fueling vehicles or stored for later conversion to electricity.

  10. How do A-train Sensors Intercompare in the Retrieval of Above-Cloud Aerosol Optical Depth? A Case Study-based Assessment

    SciTech Connect (OSTI)

    Jethva, H. T.; Torres, O.; Waquet, F.; Chand, Duli; Hu, Yong X.

    2014-01-16

    We inter-compare the above-cloud aerosol optical depth (ACAOD) of biomass burning plumes retrieved from different A-train sensors, i.e., MODIS, CALIOP, POLDER, and OMI. These sensors have shown independent capabilities to detect and retrieve aerosol loading above marine boundary layer clouds--a kind of situation often found over the Southeast Atlantic Ocean during dry burning season. A systematic one-to-one comparison reveals that, in general, all passive sensors and CALIOP-based research methods derive comparable ACAOD with differences mostly within 0.2 over homogeneous cloud fields. The 532-nm ACAOD retrieved by CALIOP operational algorithm is largely underestimated; however, its 1064-nm AOD when converted to 500 nm shows closer agreement to the passive sensors. Given the different types of sensor measurements processed with different algorithms, the close agreement between them is encouraging. Due to lack of adequate direct measurements above cloud, the validation of satellite-based ACAOD retrievals remains an open challenge. The inter-satellite comparison, however, can be useful for the relative evaluation and consistency check.

  11. Case Study

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

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a lCarib Energy (USA)civilEnergy Water Heaters FurnacesCase Study

  12. Fuel Cycle Scenario Definition, Evaluation, and Trade-offs

    SciTech Connect (OSTI)

    Steven J. Piet; Gretchen E. Matthern; Jacob J. Jacobson; Christopher T. Laws; Lee C. Cadwallader; Abdellatif M. Yacout; Robert N. Hill; J. D. Smith; Andrew S. Goldmann; George Bailey

    2006-08-01

    This report aims to clarify many of the issues being discussed within the AFCI program, including Inert Matrix Fuel (IMF) versus Mixed Oxide (MOX) fuel, single-pass versus multi-pass recycling, thermal versus fast reactors, potential need for transmutation of technetium and iodine, and the value of separating cesium and strontium. It documents most of the work produced by INL, ANL, and SNL personnel under their Simulation, Evaluation, and Trade Study (SETS) work packages during FY2005 and the first half of FY2006. This report represents the first attempt to calculate a full range of metrics, covering all four AFCI program objectives - waste management, proliferation resistance, energy recovery, and systematic management/economics/safety - using a combination of "static" calculations and a system dynamic model, DYMOND. In many cases, we examine the same issue both dynamically and statically to determine the robustness of the observations. All analyses are for the U.S. reactor fleet. This is a technical report, not aimed at a policy-level audience. A wide range of options are studied to provide the technical basis for identifying the most attractive options and potential improvements. Option improvement could be vital to accomplish before the AFCI program publishes definitive cost estimates. Information from this report will be extracted and summarized in future policy-level reports. Many dynamic simulations of deploying those options are included. There are few "control knobs" for flying or piloting the fuel cycle system into the future, even though it is dark (uncertain) and controls are sluggish with slow time response: what types of reactors are built, what types of fuels are used, and the capacity of separation and fabrication plants. Piloting responsibilities are distributed among utilities, government, and regulators, compounding the challenge of making the entire system work and respond to changing circumstances. We identify four approaches that would increase our ability to pilot the fuel cycle system: (1) have a recycle strategy that could be implemented before the 2030-2050 approximate period when current reactors retire so that replacement reactors fit into the strategy, (2) establish an option such as multi-pass blended-core IMF as a downward plutonium control knob and accumulate waste management benefits early, (3) establish fast reactors with flexible conversion ratio as a future control knob that slowly becomes available if/when fast reactors are added to the fleet, and (4) expand exploration of blended assemblies and cores, which appear to have advantages and agility. Initial results suggest multi-pass full-core MOX appears to be a less effective way than multi-pass blended core IMF to manage the fuel cycle system because it requires higher TRU throughput while more slowly accruing waste management benefits. Single-pass recycle approaches for LWRs (we did not study the VHTR) do not meet AFCI program objectives and could be considered a "dead end". Fast reactors appear to be effective options but a significant number of fast reactors must be deployed before the benefit of such strategies can be observed.

  13. Low carbon and clean energy scenarios for India: Analysis of targets approach

    SciTech Connect (OSTI)

    Shukla, Priyadarshi R.; Chaturvedi, Vaibhav

    2012-12-01

    Low carbon energy technologies are gaining increasing importance in India for reducing emissions as well as diversifying its energy supply mix. The present paper presents and analyses a targeted approach for pushing solar, wind and nuclear technologies in the Indian energy market. Targets for these technologies have been constructed on the basis of Indian government documents, policy announcements and expert opinion. Different targets have been set for the reference scenario and the carbon price scenario. In the reference scenario it is found that in the long run all solar, wind and nuclear will achieve their targets without any subsidy push. In the short run however, nuclear and solar energy require significant subsidy push. Nuclear energy requires a much higher subsidy allocation as compared to solar because the targets assumed are also higher for nuclear energy. Under a carbon price scenario, the carbon price drives the penetration of these technologies significantly. Still subsidy is required especially in the short run when the carbon price is low. It is also found that pushing solar, wind and nuclear technologies might lead to decrease in share of CCS under the price scenario and biomass under both BAU and price scenario, which implies that one set of low carbon technologies is substituted by other set of low carbon technologies. Thus the objective of emission mitigation might not be achieved due to this substitution. Moreover sensitivity on nuclear energy cost was done to represent risk mitigation for this technology and it was found that higher cost can significantly decrease the share of this technology under both the BAU and carbon price scenario.

  14. Building America Case Study: Apartment Compartmentalization with an Aerosol-Based Sealing Process - Queens, NY; Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

    SciTech Connect (OSTI)

    2015-07-01

    Air sealing of building enclosures is a difficult and time-consuming process. Current methods in new construction require laborers to physically locate small and sometimes large holes in multiple assemblies and then manually seal each of them. The innovation demonstrated under this research study was the automated air sealing and compartmentalization of buildings through the use of an aerosolized sealant, developed by the Western Cooling Efficiency Center at University of California Davis.
    CARB sought to demonstrate this new technology application in a multifamily building in Queens, NY. The effectiveness of the sealing process was evaluated by three methods: air leakage testing of overall apartment before and after sealing, point-source testing of individual leaks, and pressure measurements in the walls of the target apartment during sealing. Aerosolized sealing was successful by several measures in this study. Many individual leaks that are labor-intensive to address separately were well sealed by the aerosol particles. In addition, many diffuse leaks that are difficult to identify and treat were also sealed. The aerosol-based sealing process resulted in an average reduction of 71% in air leakage across three apartments and an average apartment airtightness of 0.08 CFM50/SF of enclosure area.

  15. Development and Deployment of a Short Rotation Woody Crops Harvesting System Based on a Case New Holland Forage Harvester and SRC Woody Crop Header

    SciTech Connect (OSTI)

    Eisenbies, Mark; Volk, Timothy

    2014-10-03

    Demand for bioenergy sourced from woody biomass is projected to increase; however, the expansion and rapid deployment of short rotation woody crop systems in the United States has been constrained by high production costs and sluggish market acceptance due to problems with quality and consistency from first-generation harvesting systems. The objective of this study was to evaluate the effect of crop conditions on the performance of a single-pass, cut and chip harvester based on a standard New Holland FR-9000 series forage harvester with a dedicated 130FB short rotation coppice header, and the quality of chipped material. A time motion analysis was conducted to track the movement of machine and chipped material through the system for 153 separate loads over 10 days on a 54-ha harvest. Harvester performance was regulated by either ground conditions, or standing biomass on 153 loads. Material capacities increased linearly with standing biomass up to 40 Mgwet ha-1 and plateaued between 70 and 90 Mgwet hr-1. Moisture contents ranged from 39 to 51% with the majority of samples between 43 and 45%. Loads produced in freezing weather (average temperature over 10 hours preceding load production) had 4% more chips greater than 25.4 mm (P < 0.0119). Over 1.5 Mgdry ha-1 of potentially harvested material (6-9% of a load) was left on site, of which half was commercially undesirable meristematic pieces. The New Holland harvesting system is a reliable and predictable platform for harvesting material over a wide range of standing biomass; performance was consistent overall in 14 willow cultivars.

  16. THE HYBRID CONe WD + He STAR SCENARIO FOR THE PROGENITORS OF TYPE Ia SUPERNOVAE

    SciTech Connect (OSTI)

    Wang, B.; Meng, X.; Liu, D.-D.; Han, Z. [Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011 (China); Liu, Z.-W., E-mail: wangbo@ynao.ac.cn [Argelander-Institut fr Astronomie, Auf dem Hgel 71, D-53121, Bonn (Germany)

    2014-10-20

    Hybrid CONe white dwarfs (WDs) have been suggested to be possible progenitors of type Ia supernovae (SNe Ia). In this Letter, we systematically studied the hybrid CONe WD + He star scenario for the progenitors of SNe Ia, in which a hybrid CONe WD increases its mass to the Chandrasekhar mass limit by accreting He-rich material from a non-degenerate He star. We obtained the SN Ia birthrates and delay times for this scenario using to a series of detailed binary population synthesis simulations. The SN Ia birthrates for this scenario are ?0.033-0.539 10{sup 3} yr{sup 1}, which roughly accounts for 1%-18% of all SNe Ia. The estimated delay times are ?28Myr-178Myr, which makes these the youngest SNe Ia predicted by any progenitor model so far. We suggest that SNe Ia from this scenario may provide an alternative explanation for type Iax SNe. We also presented some properties of the donors at the point when the WDs reach the Chandrasekhar mass. These properties may be a good starting point for investigating the surviving companions of SNe Ia and for constraining the progenitor scenario studied in this work.

  17. How plausible are the proposed formation scenarios of CEMP-r/s stars?

    E-Print Network [OSTI]

    Abate, Carlo; Liu, Zheng-Wei

    2016-01-01

    CEMP-$r/s$ stars are metal-poor stars with enhanced abundances of carbon and heavy elements associated with the slow ($s$-) and rapid ($r$-) neutron-capture process. It is believed that carbon and $s$-elements were accreted from the wind of an AGB primary star, a scenario that is generally accepted to explain the formation of CEMP stars that are only enhanced in $s$-elements (CEMP-$s$ stars). The origin of $r$-element-enrichment in CEMP-$r/s$ stars is debated and many formation scenarios have been put forward. We aim to determine the likelihood of the scenarios proposed to explain the formation of CEMP-$r/s$ stars. We calculate the frequency of CEMP-$r/s$ stars among CEMP-$s$ stars for a variety of scenarios, and we compare it with that determined from an observed sample of CEMP-$r/s$ stars collected from the literature. The theoretical frequency of CEMP-$r/s$ stars predicted in most scenarios underestimates the observed ratio by at least a factor of 5. If the enrichments in $s$- and $r$-elements are independ...

  18. Offshore wind energy climate projection using UPSCALE climate data under the RCP8.5 emission scenario

    E-Print Network [OSTI]

    Gross, Markus

    2015-01-01

    Recently it was demonstrated how climate data can be utilized to estimate regional wind power densities. In particular it was shown that the quality of the global scale estimate compared well with regional high resolution studies and a link between surface temperature and moist density in the estimate was presented. In the present paper the methodology is tested further, to ensure that the results using one climate data set are reliable. This is achieved by extending the study to include four ensemble members. With the confidence that one instantiation is sufficient a climate change data set, which was also a result of the UPSCALE experiment, is analyzed. This, for the first time, provides a projection of future changes in wind power resources using this data set. This climate change data set is based on the Representative Concentration Pathways (RCP) 8.5 climate change scenario. This provides guidance for developers and policy makers to mitigate and adapt.

  19. Restricted Natural Gas Supply Case (released in AEO2005)

    Reports and Publications (EIA)

    2005-01-01

    The restricted natural gas supply case provides an analysis of the energy-economic implications of a scenario in which future gas supply is significantly more constrained than assumed in the reference case. Future natural gas supply conditions could be constrained because of problems with the construction and operation of large new energy projects, and because the future rate of technological progress could be significantly lower than the historical rate. Although the restricted natural gas supply case represents a plausible set of constraints on future natural gas supply, it is not intended to represent what is likely to happen in the future.

  20. Probing a panoply of curvaton-decay scenarios using CMB data

    E-Print Network [OSTI]

    Tristan L. Smith; Daniel Grin

    2015-11-23

    In the curvaton scenario, primordial curvature perturbations are produced by a second field that is sub-dominant during inflation. Depending on how the curvaton decays [possibly producing baryon number, lepton number, or cold dark matter (CDM)], mixtures of correlated isocurvature perturbations are produced, allowing the curvaton scenario to be tested using cosmic microwave background (CMB) data. Here, a full range of 27 curvaton-decay scenarios is compared with CMB data, placing limits on the curvaton fraction at decay, $r_D$, and the lepton asymmetry, $\\xi_{\\rm lep}$. If baryon number is generated by curvaton decay and CDM before (or vice-versa), these limits imply specific predictions for non-Gaussian signatures testable by future CMB experiments and upcoming large-scale-structure surveys.

  1. Optimal randomness certification in the quantum steering and prepare-and-measure scenarios

    E-Print Network [OSTI]

    Elsa Passaro; Daniel Cavalcanti; Paul Skrzypczyk; Antonio Acn

    2015-04-30

    Quantum mechanics predicts the existence of intrinsically random processes. Contrary to classical randomness, this lack of predictability can not be attributed to ignorance or lack of control. Here we propose a method to quantify the amount of randomness that can be extracted in two scenarios: (i) the quantum steering scenario, where two parties measure a bipartite system in an unknown state but one of them does not trust his measurement apparatus, and (ii) the prepare-and-measure scenario, where additionally the quantum state is known. We use our methods to compute the maximal amount of local randomness that can be certified by measuring systems subject to noise and losses and show that randomness can be certified from a single measurement if and only if the detectors used in the test have detection efficiency higher than 50%.

  2. Natural gas network resiliency to a %22shakeout scenario%22 earthquake.

    SciTech Connect (OSTI)

    Ellison, James F.; Corbet, Thomas Frank,; Brooks, Robert E.

    2013-06-01

    A natural gas network model was used to assess the likely impact of a scenario San Andreas Fault earthquake on the natural gas network. Two disruption scenarios were examined. The more extensive damage scenario assumes the disruption of all three major corridors bringing gas into southern California. If withdrawals from the Aliso Canyon storage facility are limited to keep the amount of stored gas within historical levels, the disruption reduces Los Angeles Basin gas supplies by 50%. If Aliso Canyon withdrawals are only constrained by the physical capacity of the storage system to withdraw gas, the shortfall is reduced to 25%. This result suggests that it is important for stakeholders to put agreements in place facilitating the withdrawal of Aliso Canyon gas in the event of an emergency.

  3. An alternative scenario for the formation of specialized protein nano-domains (cluster phases) in biomembranes

    E-Print Network [OSTI]

    Nicolas Destainville

    2010-09-28

    We discuss a realistic scenario, accounting for the existence of sub-micrometric protein domains in cell membranes. At the biological level, such membrane domains have been shown to be specialized, in order to perform a determined biological task, in the sense that they gather one or a few protein species out of the hundreds of different ones that a cell membrane may contain. By analyzing the balance between mixing entropy and protein affinities, we propose that such protein sorting in distinct domains can be explained without appealing to pre-existing lipidic micro-phase separations, as in the lipid raft scenario. We show that the proposed scenario is compatible with known physical interactions between membrane proteins, even if thousands of different species coexist.

  4. EIA Cases

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|Department of5 Peer ReviewUse of HeAgenda EEREEERE WebMarch 2016

  5. Generic Argillite/Shale Disposal Reference Case

    SciTech Connect (OSTI)

    Zheng, Liange; Colon, Carlos Jov; Bianchi, Marco; Birkholzer, Jens

    2014-08-08

    Radioactive waste disposal in a deep subsurface repository hosted in clay/shale/argillite is a subject of widespread interest given the desirable isolation properties, geochemically reduced conditions, and widespread geologic occurrence of this rock type (Hansen 2010; Bianchi et al. 2013). Bianchi et al. (2013) provides a description of diffusion in a clay-hosted repository based on single-phase flow and full saturation using parametric data from documented studies in Europe (e.g., ANDRA 2005). The predominance of diffusive transport and sorption phenomena in this clay media are key attributes to impede radionuclide mobility making clay rock formations target sites for disposal of high-level radioactive waste. The reports by Hansen et al. (2010) and those from numerous studies in clay-hosted underground research laboratories (URLs) in Belgium, France and Switzerland outline the extensive scientific knowledge obtained to assess long-term clay/shale/argillite repository isolation performance of nuclear waste. In the past several years under the UFDC, various kinds of models have been developed for argillite repository to demonstrate the model capability, understand the spatial and temporal alteration of the repository, and evaluate different scenarios. These models include the coupled Thermal-Hydrological-Mechanical (THM) and Thermal-Hydrological-Mechanical-Chemical (THMC) models (e.g. Liu et al. 2013; Rutqvist et al. 2014a, Zheng et al. 2014a) that focus on THMC processes in the Engineered Barrier System (EBS) bentonite and argillite host hock, the large scale hydrogeologic model (Bianchi et al. 2014) that investigates the hydraulic connection between an emplacement drift and surrounding hydrogeological units, and Disposal Systems Evaluation Framework (DSEF) models (Greenberg et al. 2013) that evaluate thermal evolution in the host rock approximated as a thermal conduction process to facilitate the analysis of design options. However, the assumptions and the properties (parameters) used in these models are different, which not only make inter-model comparisons difficult, but also compromise the applicability of the lessons learned from one model to another model. The establishment of a reference case would therefore be helpful to set up a baseline for model development. A generic salt repository reference case was developed in Freeze et al. (2013) and the generic argillite repository reference case is presented in this report. The definition of a reference case requires the characterization of the waste inventory, waste form, waste package, repository layout, EBS backfill, host rock, and biosphere. This report mainly documents the processes in EBS bentonite and host rock that are potentially important for performance assessment and properties that are needed to describe these processes, with brief description other components such as waste inventory, waste form, waste package, repository layout, aquifer, and biosphere. A thorough description of the generic argillite repository reference case will be given in Jov Colon et al. (2014).

  6. Scenario Jedi

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

    right at the point of entry. This obviates the inconvenience of having to flip to search for information in FAQs. - Marked increase in use of "breadcrumbs," hot link buttons...

  7. Plug-In Hybrid Electric Vehicle Value Proposition Study: Phase 1, Task 3: Technical Requirements and Procedure for Evaluation of One Scenario

    SciTech Connect (OSTI)

    Sikes, Karen R; Hinds, Shaun; Hadley, Stanton W; McGill, Ralph N; Markel, Lawrence C; Ziegler, Richard E; Smith, David E; Smith, Richard L; Greene, David L; Brooks, Daniel L; Wiegman, Herman; Miller, Nicholas; Marano, Dr. Vincenzo

    2008-07-01

    In Task 2, the project team designed the Phase 1 case study to represent the 'baseline' plug-in hybrid electric vehicle (PHEV) fleet of 2030 that investigates the effects of seventeen (17) value propositions (see Table 1 for complete list). By creating a 'baseline' scenario, a consistent set of assumptions and model parameters can be established for use in more elaborate Phase 2 case studies. The project team chose southern California as the Phase 1 case study location because the economic, environmental, social, and regulatory conditions are conducive to the advantages of PHEVs. Assuming steady growth of PHEV sales over the next two decades, PHEVs are postulated to comprise approximately 10% of the area's private vehicles (about 1,000,000 vehicles) in 2030. New PHEV models introduced in 2030 are anticipated to contain lithium-ion batteries and be classified by a blended mileage description (e.g., 100 mpg, 150 mpg) that demonstrates a battery size equivalence of a PHEV-30. Task 3 includes the determination of data, models, and analysis procedures required to evaluate the Phase 1 case study scenario. Some existing models have been adapted to accommodate the analysis of the business model and establish relationships between costs and value to the respective consumers. Other data, such as the anticipated California generation mix and southern California drive cycles, have also been gathered for use as inputs. The collection of models that encompasses the technical, economic, and financial aspects of Phase 1 analysis has been chosen and is described in this deliverable. The role of PHEV owners, utilities (distribution systems, generators, independent system operators (ISO), aggregators, or regional transmission operators (RTO)), facility owners, financing institutions, and other third parties are also defined.

  8. Presentation 2.1: Review of global bioenergy scenarios Jack N. Saddler

    E-Print Network [OSTI]

    ;#12;Forest Products Biotechnology at UBC Review of global bioenergy scenarios W.E. Mabee, J.N. Saddler Forest Forest Products Biotechnology at UBC Oil Prices and World Events $0 $10 $20 $30 $40 $50 $60 $70 $80 1997 Dec 2002 - Feb 2003 Iraq War 20 Mar 2003 > (US$/barrel West Texas Crude Oil) Hurricane Katrina 29 Aug

  9. FIRE Physics Issues 1-3 May 2000 RF Heating Scenarios

    E-Print Network [OSTI]

    1 FIRE Physics Issues 1-3 May 2000 RF Heating Scenarios Dick Majeski, Dave Swain, Mark Carter Princeton Plasma Physics Laboratory and Oak Ridge National Laboratory Physics Issues for FIRE PPPL 1-3 May 2000 #12;2 FIRE Physics Issues 1-3 May 2000 Introduction and requirements FIRE heating and current

  10. SCENARIOS FOR AN AUTONOMIC MICRO SMART GRID Sylvain Frey1,2

    E-Print Network [OSTI]

    Diaconescu, Ada

    open issues as well as novel perspectives on the future of micro smart grids. 1 Motivation Autonomic solutions. 2 Management requirements for Micro Smart Grids The constant increase of energy consumption makesSCENARIOS FOR AN AUTONOMIC MICRO SMART GRID Sylvain Frey1,2 , Franois Huguet1 , Cdric Mivielle1

  11. Using Business Scenarios to Surface Requirements for COTS Products WenQian Liu

    E-Print Network [OSTI]

    Easterbrook, Steve

    . lymer@ca.ibm.com Steve Easterbrook Dept. of Computer Science University of Toronto sme Science University of Toronto wl@cs.utoronto.ca Sharon Lymer IBM Toronto Software Lab IBM Canada LtdUsing Business Scenarios to Surface Requirements for COTS Products WenQian Liu Dept. of Computer

  12. Direct Discovery Prospects for the Light CP-odd Higgs Boson of NMSSM Ideal Higgs Scenarios

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Direct Discovery Prospects for the Light CP-odd Higgs Boson of NMSSM Ideal Higgs Scenarios Jack on the following papers with R. Dermisek: New constraints on a light CP-odd Higgs boson and related NMSSM Ideal CP-odd Higgs boson at the Tevatron and LHC. Published in Phys.Rev.D81:055001,2010, arXiv:0911

  13. 2-LAMA Architecture vs. BitTorrent Protocol in a Peer-to-Peer Scenario

    E-Print Network [OSTI]

    Lpez-Snchez, Maite

    2-LAMA Architecture vs. BitTorrent Protocol in a Peer-to-Peer Scenario Jordi CAMPOS a&1 , Maite review our Multi-Agent System (MAS) architecture (2- LAMA) proposed to assist existing MAS. This architecture consists of two levels: the conventional MAS system and an additional meta-level in charge

  14. Offshore Wind Jobs and Economic Development Impact: Four Regional Scenarios (Presentation)

    SciTech Connect (OSTI)

    Tegen, S.

    2014-11-01

    NREL's Jobs and Economic Development Impact (JEDI) Model for Offshore Wind, is a computer tool for studying the economic impacts of fixed-bottom offshore wind projects in the United States. This presentation provides the results of an analysis of four offshore wind development scenarios in the Southeast Atlantic, Great Lakes, Mid-Atlantic, and Gulf of Mexico regions.

  15. Resource Pooling in Network Virtualization and Heterogeneous Scenarios using Stochastic Petri Nets

    E-Print Network [OSTI]

    Yanikomeroglu, Halim

    Resource Pooling in Network Virtualization and Heterogeneous Scenarios using Stochastic Petri Nets University, Canada {rs,halim}@sce.carleton.ca Abstract--Wireless cellular networks are undergoing severe by the network. While operators traditionally over-provisioned their own separate network capacity in order

  16. Low-energy signals of strongly-coupled electroweak symmetry-breaking scenarios

    E-Print Network [OSTI]

    Antonio Pich; Ignasi Rosell; Joaquin Santos; Juan Jose Sanz-Cillero

    2015-10-12

    Generic strongly-coupled scenarios of electroweak symmetry breaking usually contain towers of heavy states. We analyze the imprints that the lightest bosonic excitations leave on the couplings of the low-energy electroweak effective Lagrangian. The different quantum numbers of the heavy states imply different patterns of low-energy couplings, with characteristic correlations which could be identified in future data samples.

  17. Using Risk Analysis to Assess User Trust A Net-Bank Scenario

    E-Print Network [OSTI]

    Stlen, Ketil

    Using Risk Analysis to Assess User Trust A Net-Bank Scenario Gyrd Brndeland1 and Ketil Stlen1 advocates asset-oriented risk analysis as a means to help defend user trust. The paper focuses on a net approach defines user trust as an asset and makes use of asset-oriented risk analysis to identify treats

  18. Evaluation of pressure response in the Los Alamos controlled air incinerator during three incident scenarios

    SciTech Connect (OSTI)

    Vavruska, J.S. [Equinox, Ltd., Santa Fe, NM (United States); Elsberry, K. [Los Alamos National Lab., NM (United States); Thompson, T.K.; Pendergrass, J.A. [T.K. Thompson, Inc., White Rock, NM (United States)

    1996-05-01

    The Los Alamos Controlled Air Incinerator (CAI) is a system designed to accept radioactive mixed waste containing alpha-emitting radionuclides. A mathematical model was developed to predict the pressure response throughout the offgas treatment system of the CAI during three hypothetical incident scenarios. The scenarios examined included: (1) loss of burner flame and failure of the flame safeguard system with subsequent reignition of fuel gas in the primary chamber, (2) pyrolytic gas buildup from a waste package due to loss of induced draft and subsequent restoration of induced draft, and (3) accidental charging of propellant spray cans in a solid waste package to the primary chamber during a normal feed cycle. For each of the three scenarios, the finite element computer model was able to determine the transient pressure surge and decay response throughout the system. Of particular interest were the maximum absolute pressures attainable at critical points in the system as well as maximum differential pressures across the high efficiency particulate air (HEPA) filters. Modeling results indicated that all three of the scenarios resulted in maximum HEPA filter differential pressures well below the maximum allowable levels.

  19. Ris Energy Report 4 International trends and scenarios for future energy systems Introduction

    E-Print Network [OSTI]

    Ris Energy Report 4 International trends and scenarios for future energy systems 3 Introduction In evaluations of long term energy forecasts made in the past the conclusion often is that a large number on internationally recognised scientific material". One key observation in a recent evaluation of long term energy

  20. Pictures, scenarios or probabilities: how should we portray dangerous climate change?

    E-Print Network [OSTI]

    Hulme, Mike

    1 Pictures, scenarios or probabilities: how should we portray dangerous climate change? Professor of East Anglia Prepared for the conference on "Perspectives on dangerous climate change", 28-29 June 2004 University of East Anglia, Norwich, UK Version 16 June 2004 Abstract "Dangerous climate change" has entered

  1. Dynamic LMP Response Under Alternative Price-Cap and Price-Sensitive Demand Scenarios

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    scheduled for implementation) in the midwest (MISO), New England (ISO-NE), New York (NYISO), the mid1 Dynamic LMP Response Under Alternative Price-Cap and Price-Sensitive Demand Scenarios Hongyan Li protocols I. INTRODUCTION IN April 2003 the U.S. Federal Energy Regulatory Commis- sion issued a white paper

  2. Combining Genetic Algorithms & Simulation to Search for Failure Scenarios in System Models

    E-Print Network [OSTI]

    Mills, Chris Dabrowski, Jim Filliben and Sandy Ressler NIST Cloud Security Working Group July 17, 2013 for Failure Scenarios Evaluating Method Conclusions & Future Work July 17, 2013 NIST Cloud Security WG 2 #12;July 17, 2013 NIST Cloud Security WG 3 GROWING GLOBAL DEPENDENCE ON COMPLEX INFO. SYSTEMS #12;July

  3. The Great Sand Dunes Ecosystem Elk and Bison Carrying Capacity Model: Description and Scenario Results

    E-Print Network [OSTI]

    Boone, Randall B.

    1 The Great Sand Dunes Ecosystem Elk and Bison Carrying Capacity Model: Description and Scenario studying the Sand Dunes ecosystem in the past decade. The information they have gathered has been.S. Geological Survey, and Great Sand Dunes National Park and Preserve for providing funding to support

  4. The RUNES Middleware for Networked Embedded Systems and its Application in a Disaster Management Scenario

    E-Print Network [OSTI]

    Picco, Gian Pietro

    scenario involves fire management in a road tunnel that is instrumented with networked sensor and actuator (Reconfigurable Ubiq- uitous Network Embedded Systems) project1 , involves a road tunnel that is instrumented with networked embedded sensors, actuators, and larger, more powerful, devices. The latter act as gateways

  5. Is RPL Ready for Actuation? A Comparative Evaluation in a Smart City Scenario

    E-Print Network [OSTI]

    Picco, Gian Pietro

    Is RPL Ready for Actuation? A Comparative Evaluation in a Smart City Scenario Timofei Istomin1 of a large-scale infrastructure for smart city applications, which directly informs our evaluation, where we infrastructure of 860+ IEEE 802.15.4 nodes, for monitoring and control of public lighting and other "smart city

  6. PATTERNS OF GREENHOUSE WARMING "Projected warming in the 21st century shows scenario-independent

    E-Print Network [OSTI]

    PATTERNS OF GREENHOUSE WARMING "Projected warming in the 21st century shows scenario in response to increasing greenhouse gas levels will not be geographically uniform. Computer models indicate greenhouse gas (GHG) concentrations. However, the warming is not expected to be uniform over the globe, nor

  7. Alternative Scenarios of Relativistic Heavy-Ion Collisions: II. Particle Production

    E-Print Network [OSTI]

    Yu. B. Ivanov

    2013-06-04

    Particle production in relativistic collisions of heavy nuclei is analyzed in a wide range of incident energies 2.7 GeV $\\le \\sqrt{s_{NN}}\\le$ 62.4 GeV. The analysis is performed within the three-fluid model employing three different equations of state (EoS): a purely hadronic EoS, an EoS with the first-order phase transition and that with a smooth crossover transition. It is found that the hadronic scenario fails to reproduce experimental yields of antibaryons (strange and nonstrange), starting already from lower SPS energies, i.e. $\\sqrt{s_{NN}}>$ 5 GeV. Moreover, at energies above the top SPS one, i.e. $\\sqrt{s_{NN}}>$ 17.4 GeV, the mid-rapidity densities predicted by the hadronic scenario considerably exceed the available RHIC data on all species. At the same time the deconfinement-transition scenarios reasonably agree (to a various extent) with all the data. The present analysis demonstrates certain advantage of the deconfinement-transition EoS's. However, all scenarios fail to reproduce the strangeness enhancement in the incident energy range near 30A GeV (i.e. a horn anomaly in the $K^+/\\pi^+$ ratio) and yields of $\\phi$-mesons at 20A--40A GeV.

  8. Galactic modulation of extragalactic cosmic rays -Alternative scenario of the origin of the knee -

    E-Print Network [OSTI]

    Galactic modulation of extragalactic cosmic rays - Alternative scenario of the origin of the knee is reproduced well again. The energy dependence of mean mass of cosmic rays above the knee energy is presented to be compared with observations. . 1. Introduction Cosmic rays (CRs) with energies below the knee have been

  9. Costs and benefits of logistics pooling for urban freight distribution: scenario

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    1 Costs and benefits of logistics pooling for urban freight distribution: scenario simulation Collaborative transportation and logistics pooling are relatively new concepts in research, but are very popular in practice. In the last years, collaborative transportation seems a good city logistics alternative

  10. Design and scenario assessment for collaborative logistics and freight transport systems

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    1 Design and scenario assessment for collaborative logistics and freight transport systems Jesus Collaboration between partners is a very popular subject in both logistics and decision support research of logistics and freight transport, as well as to describe the links between freight transport and supply chain

  11. Root finding in the complex plane for seismo-acoustic propagation scenarios with Green's function solutions

    E-Print Network [OSTI]

    Root finding in the complex plane for seismo-acoustic propagation scenarios with Green's function waveguide with an elastic bottom using a Green's function formulation for a compressional wave point source modes of energy. The eigenvalues arise as singularities in the inverse Hankel transform integral

  12. Scenarios of Future Socio-Economics, Energy, Land Use, and Radiative Forcing

    SciTech Connect (OSTI)

    Eom, Jiyong; Moss, Richard H.; Edmonds, James A.; Calvin, Katherine V.; Clarke, Leon E.; Dooley, James J.; Kim, Son H.; Kopp, Roberrt; Kyle, G. Page; Luckow, Patrick W.; Patel, Pralit L.; Thomson, Allison M.; Wise, Marshall A.; Zhou, Yuyu

    2013-04-13

    This chapter explores uncertainty in future scenarios of energy, land use, emissions and radiative forcing that span the range in the literature for radiative forcing, but also consider uncertainty in two other dimensions, challenges to mitigation and challenges to adaptation. We develop a set of six scenarios that we explore in detail including the underlying the context in which they are set, assumptions that drive the scenarios, the Global Change Assessment Model (GCAM), used to produce quantified implications for those assumptions, and results for the global energy and land-use systems as well as emissions, concentrations and radiative forcing. We also describe the history of scenario development and the present state of development of this branch of climate change research. We discuss the implications of alternative social, economic, demographic, and technology development possibilities, as well as potential stabilization regimes for the supply of and demand for energy, the choice of energy technologies, and prices of energy and agricultural commodities. Land use and land cover will also be discussed with the emphasis on the interaction between the demand for bioenergy and crops, crop yields, crop prices, and policy settings to limit greenhouse gas emissions.

  13. A new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry

    E-Print Network [OSTI]

    Mazzini, Adriano

    acquired a wide set of data of molecular and isotopic composition of gas sampled in several Lusi vents, in the surrounding mud volcanoes, in the closest natural gas field (Wunut), and in the hydrothermal ventsA new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry

  14. Economic Impacts of the Arkstorm Scenario1 Ian Sue Wing1

    E-Print Network [OSTI]

    Wing, Ian Sue

    Economic Impacts of the Arkstorm Scenario1 Ian Sue Wing1 ; Adam Z. Rose2 ; and Anne M. Wein3 2 3 equilibrium model of the California economy to perform this economic consequence analysis.8 Economic and wind damages, economic impacts; business18 interruption; economic resilience; computable general

  15. Ship emissions and air pollution in Present situation and future scenarios

    E-Print Network [OSTI]

    Ship emissions and air pollution in Denmark Present situation and future scenarios Helge Rrdam.10 RESULTS: SPATIAL DISTRIBUTION 56 3 SHIP EMISSION INVENTORIES FOR AIR POLLUTION MODELLING 61 3-SP" INVENTORY 67 3.5 "AIS-2011" INVENTORY 68 3.6 "AIS-2020" INVENTORY 69 3.7 SUMMARY OF DIFFERENCES 70 4 AIR

  16. Low-energy signals of strongly-coupled electroweak symmetry-breaking scenarios

    E-Print Network [OSTI]

    Pich, Antonio; Santos, Joaquin; Sanz-Cillero, Juan Jose

    2015-01-01

    Generic strongly-coupled scenarios of electroweak symmetry breaking usually contain towers of heavy states. We analyze the imprints that the lightest bosonic excitations leave on the couplings of the low-energy electroweak effective Lagrangian. The different quantum numbers of the heavy states imply different patterns of low-energy couplings, with characteristic correlations which could be identified in future data samples.

  17. "Leveraging University Expertise to Inform Better Policy" Figure: 2050 Scenario from California Air Resources Board

    E-Print Network [OSTI]

    California at Davis, University of

    , and diversify our transportation energy supply. This policy forum draws from the latest research to explore some"Leveraging University Expertise to Inform Better Policy" Figure: 2050 Scenario from California Air dependency, California has adopted numerous vehicle and fuel policies that accelerate the introduction

  18. Mass Movement-Induced Tsunami Hazard on Perialpine Lake Lucerne (Switzerland): Scenarios and Numerical Experiments

    E-Print Network [OSTI]

    Gilli, Adrian

    Mass Movement-Induced Tsunami Hazard on Perialpine Lake Lucerne (Switzerland): Scenarios damaging waves on the lake, it was suggested that tsunamis generated by mass movements represent-dimensional, depth-averaged models for mass-movement propagation and for tsunami generation, propagation and inunda

  19. How Can China Lighten Up? Urbanization, Industrialization and Energy Demand Scenarios

    SciTech Connect (OSTI)

    Aden, Nathaniel T.; Zheng, Nina; Fridley, David G.

    2009-07-01

    Urbanization has re-shaped China's economy, society, and energy system. Between 1990 and 2007 China added 290 million new urban residents, bringing the total urbanization rate to 45%. This population adjustment spurred energy demand for construction of new buildings and infrastructure, as well as additional residential use as rural biomass was replaced with urban commercial energy services. Primary energy demand grew at an average annual rate of 10% between 2000 and 2007. Urbanization's effect on energy demand was compounded by the boom in domestic infrastructure investment, and in the export trade following World Trade Organization (WTO) accession in 2001. Industry energy consumption was most directly affected by this acceleration. Whereas industry comprised 32% of 2007 U.S. energy use, it accounted for 75% of China's 2007 energy consumption. Five sub-sectors accounted for 78% of China's industry energy use in 2007: iron and steel, energy extraction and processing, chemicals, cement, and non-ferrous metals. Ferrous metals alone accounted for 25% of industry and 18% of total primary energy use. The rapid growth of heavy industry has led China to become by far the world's largest producer of steel, cement, aluminum, and other energy-intensive commodities. However, the energy efficiency of heavy industrial production continues to lag world best practice levels. This study uses scenario analysis to quantify the impact of urbanization and trade on industrial and residential energy consumption from 2000 to 2025. The BAU scenario assumed 67% urbanization, frozen export amounts of heavy industrial products, and achievement of world best practices by 2025. The China Lightens Up (CLU) scenario assumed 55% urbanization, zero net exports of heavy industrial products, and more aggressive efficiency improvements by 2025. The five dominant industry sub-sectors were modeled in both scenarios using a LEAP energy end-use accounting model. The results of this study show that a CLU-style development path would avoid 430 million tonnes coal-equivalent energy use by 2025. More than 60% of these energy savings would come from reduced activity and production levels. In carbon terms, this would amount to more than a billion-tonne reduction of energy-related carbon emissions compared with the BAU scenario in 2025, though the absolute level of emissions rises in both scenarios. Aside from the energy and carbon savings related to CLU scenario development, this study showed impending saturation effects in commercial construction, urban appliance ownership, and fertilizer application. The implication of these findings is that urbanization will have a direct impact on future energy use and emissions - policies to guide urban growth can play a central role in China's efforts to mitigate emissions growth.

  20. What does the 2C Target Imply for a Global Climate Agreement in 2020? The LIMITS Study on Durban Action Platform Scenarios

    SciTech Connect (OSTI)

    Kriegler, Elmar; Tavoni, Massimo; Aboumahboub, Tino; Luderer, Gunnar; Calvin, Katherine V.; DeMaere, Gauthier; Krey, Volker; Riahi, Keywan; Rosler, Hilke; Schaeffer, Michiel; Van Vuuren, Detlef

    2013-11-01

    This paper provides a novel and comprehensive model?based assessment of possible outcomes of the Durban Platform negotiations with a focus on emissions reduction requirements, the consistency with the 2C target and global economic impacts. The Durban Action scenarios investigated in the LIMITS studyall assuming the implementation of comprehensive global emission reductions after 2020, but assuming different 2020 emission reduction levels and different long?term stabilization targetsshow that the probability of exceeding the 2C limit increases with stabilization target from below one third for 450?470 ppm to 40?60% for 490?510 ppm in 2100. Global time?averaged economic costs of the Durban Action scenarios are limited across models, and are largely unaffected by the stringency of 2020 pledges. By contrast, the economic impact of delaying action beyond 2030 is much stronger on transitional costs. The main significance of short term action in the period 2010?2030 lies in preparing the ground for steep emissions reductions thereafter by inducing global emissions to peak and decline. The institutional challenges of all scenarios with fragmented near?term climate policy can be expected to be high as reflected in a steep rise of carbon prices and decarbonization rates until 2040. We conclude that an agreement on comprehensive emissions reductions to be implemented from 2020 onwards has particular significance for meeting long term climate policy objectives.

  1. EVOLUTION OF POST-IMPACT REMNANT HELIUM STARS IN TYPE Ia SUPERNOVA REMNANTS WITHIN THE SINGLE-DEGENERATE SCENARIO

    SciTech Connect (OSTI)

    Pan, Kuo-Chuan; Ricker, Paul M. [Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States); Taam, Ronald E., E-mail: kpan2@illinois.edu, E-mail: pmricker@illinois.edu, E-mail: r-taam@northwestern.edu [Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (United States)

    2013-08-10

    The progenitor systems of Type Ia supernovae (SNe Ia) are still under debate. Based on recent hydrodynamics simulations, non-degenerate companions in the single-degenerate scenario (SDS) should survive the supernova (SN) impact. One way to distinguish between the SDS and the double-degenerate scenario is to search for the post-impact remnant stars (PIRSs) in SN Ia remnants. Using a technique that combines multi-dimensional hydrodynamics simulations with one-dimensional stellar evolution simulations, we have examined the post-impact evolution of helium-rich binary companions in the SDS. It is found that these helium-rich PIRSs (He PIRSs) dramatically expand and evolve to a luminous phase (L {approx} 10{sup 4} L{sub Sun }) about 10 yr after an SN explosion. Subsequently, they contract and evolve to become hot blue-subdwarf-like (sdO-like) stars by releasing gravitational energy, persisting as sdO-like stars for several million years before evolving to the helium red-giant phase. We therefore predict that a luminous OB-like star should be detectable within {approx}30 yr after the SN explosion. Thereafter, it will shrink and become an sdO-like star in the central regions of SN Ia remnants within star-forming regions for SN Ia progenitors evolved via the helium-star channel in the SDS. These He PIRSs are predicted to be rapidly rotating (v{sub rot} {approx}> 50 km s{sup -1}) and to have high spatial velocities (v{sub linear} {approx}> 500 km s{sup -1}). Furthermore, if SN remnants have diffused away and are not recognizable at a later stage, He PIRSs could be an additional source of single sdO stars and/or hypervelocity stars.

  2. PhotoVoltaic distributed generation for Lanai power grid real-time simulation and control integration scenario.

    SciTech Connect (OSTI)

    Robinett, Rush D., III; Kukolich, Keith; Wilson, David Gerald; Schenkman, Benjamin L.

    2010-06-01

    This paper discusses the modeling, analysis, and testing in a real-time simulation environment of the Lanai power grid system for the integration and control of PhotoVoltaic (PV) distributed generation. The Lanai Island in Hawaii is part of the Hawaii Clean Energy Initiative (HCEI) to transition to 30% renewable green energy penetration by 2030. In Lanai the primary loads come from two Castle and Cook Resorts, in addition to residential needs. The total peak load profile is 12470 V, 5.5 MW. Currently there are several diesel generators that meet these loading requirements. As part of the HCEI, Lanai has initially installed 1.2 MW of PV generation. The goal of this study has been to evaluate the impact of the PV with respect to the conventional carbon-based diesel generation in real time simulation. For intermittent PV distributed generation, the overall stability and transient responses are investigated. A simple Lanai 'like' model has been developed in the Matlab/Simulink environment (see Fig. 1) and to accommodate real-time simulation of the hybrid power grid system the Opal-RT Technologies RT-Lab environment is used. The diesel generators have been modelled using the SimPowerSystems toolbox swing equations and a custom Simulink module has been developed for the High level PV generation. All of the loads have been characterized primarily as distribution lines with series resistive load banks with one VAR load bank. Three-phase faults are implemented for each bus. Both conventional and advanced control architectures will be used to evaluate the integration of the PV onto the current power grid system. The baseline numerical results include the stable performance of the power grid during varying cloud cover (PV generation ramping up/down) scenarios. The importance of assessing the real-time scenario is included.

  3. Modeling Long-Range Transportation and Land Use Scenarios for the Sacramento Region, Using Citizen-Generated Policies

    E-Print Network [OSTI]

    Johnston, Robert A.; Gao, Shengyi; Clay, Michael J.

    2008-01-01

    Barra. Comparison from the Sacramento Model Testbed. Transp.Management Policies in the Sacramento Region: Year Two.Land Use Scenarios for the Sacramento Region, Using Citizen-

  4. Modeling Tidal Freshwater Marsh Sustainability in the SacramentoSan Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    a Broad Suite of Potential Future Scenarios Kathleen M.Holocene, recent, and future accretion in channel marshas well as possible future trends in sediment sup- ply and

  5. Japan's Long-term Energy Demand and Supply Scenario to 2050 - Estimation for the Potential of Massive CO2 Mitigation

    E-Print Network [OSTI]

    Komiyama, Ryoichi

    2010-01-01

    scenario, particularly, nuclear power plants will besupply to about 30%. Nuclear power will thus become asand reliability of nuclear power as the most important

  6. QUANTIFYING UNCERTAINTIES IN GROUND MOTION SIMULATIONS FOR SCENARIO EARTHQUAKES ON THE HAYWARD-RODGERS CREEK FAULT SYSTEM USING THE USGS 3D VELOCITY MODEL AND REALISTIC PSEUDODYNAMIC RUPTURE MODELS

    SciTech Connect (OSTI)

    Rodgers, A; Xie, X

    2008-01-09

    This project seeks to compute ground motions for large (M>6.5) scenario earthquakes on the Hayward Fault using realistic pseudodynamic ruptures, the USGS three-dimensional (3D) velocity model and anelastic finite difference simulations on parallel computers. We will attempt to bound ground motions by performing simulations with suites of stochastic rupture models for a given scenario on a given fault segment. The outcome of this effort will provide the average, spread and range of ground motions that can be expected from likely large earthquake scenarios. The resulting ground motions will be based on first-principles calculations and include the effects of slip heterogeneity, fault geometry and directivity, however, they will be band-limited to relatively low-frequency (< 1 Hz).

  7. Engineering, Nutrient Removal, and Feedstock Conversion Evaluations of Four Corn Stover Harvest Scenarios

    SciTech Connect (OSTI)

    Reed L. Hoskinson; Douglas L. Karlen; Stuart J. Birrell; Corey W. Radtke; W.W. Wilhelm

    2007-02-01

    Crop residue has been identified as a near-term source of biomass for renewable fuel, heat, power, chemicals and other bio-materials. Replicated plots were established in a corn (Zea mays L.) field near Ames, IA to evaluate four harvest scenarios (low cut, high-cut top, high-cut bottom, and normal cut). A prototype one-pass harvest system was used to collect the residue samples. High-cut top and high-cut bottom samples were obtained from the same plots in two separate operations. Chemical composition, dilute acid pretreatment response, ethanol conversion efficiency and gasification parameters for each scenario were determined. Mean grain yield (10.1 Mg ha-1 dry weight) was representative of the area. The four harvest scenarios removed 6.7, 4.9, 1.7, and 5.1 Mg ha-1 of dry matter. Expressed as harvest indices (HI) the values were 0.60 for low cut, 0.66 for normal cut, and 0.61 for the total high-cut (top + bottom) scenarios, which are probably realistic for machine harvest and current hybrids. The macro-nutrient replacement value for the normal harvest scenario under our conditions was $57.36 ha-1 or $11.27 Mg-1. Harvesting stalk bottoms increased the water content, the risk of combine damage, the transportation costs, and left insufficient soil cover, while also producing a problematic feedstock. Harvesting stover at current combine height (~40 cm) would be best for farmers and ethanol producers because of better harvest speed and efficiency as well as the quality of the ethanol feedstock.

  8. The effect of global warming scenarios on soybean and peanut yields in the Coastal Plain region of Georgia

    SciTech Connect (OSTI)

    Laitta, M.T.; Huebner, N.J. [Georgia State Univ., Atlanta, GA (United States)

    1996-09-01

    This study is an evaluation of peanut and soybean yield in the Coastal Plain of Georgia as a function of seasonal water deficit scenarios. An analytical model of the Thornthwaite water balance model, based on historical temperature and precipitation data, is used to evaluate the probable response of crop productivity to climate changes in selected counties in South Georgia. The input of temperature and precipitation values for each site is based on the results of three general circulation models (GCM), which were regionally tailored to the Southeastern United States. A regression analysis was preformed to establish a numerical relationship between historical yield and moisture deficits. This model, in association with projected GCM model deficits, was used to predict future crop yields. Our results showed that given all GCM models evaluated, deficit periods for the selected sites will increase both the intensity and duration droughts in the southeastern U.S. Of the two crops analyzed, it was found that soybeans showed a higher sensitivity to moisture deficits than did peanuts.

  9. Sensitivity of transport and stability to the current profile in steady-state scenario plasmas in DIII-D

    SciTech Connect (OSTI)

    Turco, F.; Hanson, J. M. [Columbia University, New York, New York 10027 (United States); Holcomb, C. T. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Ferron, J. R.; Luce, T. C.; Politzer, P. A.; Turnbull, A. D. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States); Park, J. M. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); White, A. E. [Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Brennan, D. P. [University of Tulsa, Tulsa, Oklahoma 74104 (United States); Okabayashi, M. [Princeton Plasma Physics Laboratory, Princeton 08543, New Jersey (United States); In, Y. [Far-Tech, Inc., San Diego, California 92121 (United States)

    2012-12-15

    Recent experiments on DIII-D have provided the first systematic data on the impact of the current profile on the transport and stability properties of high-performance, steady-state scenario plasmas. In a future tokamak, to achieve 100% noninductive conditions and produce net power, the current profile J must be sustained by a large fraction of bootstrap current J{sub BS}, which is nonlinearly coupled with the kinetic profiles. Systematic scans of q{sub min} and q{sub 95} were performed to determine empirically the best alignment of the noninductive currents with J and the variation of the transport properties with q. Transport analysis indicates that {chi}{sub e} and {chi}{sub i} are sensitive to the details of J in a way that makes the pressure profile peaking and J{sub BS} scale nonlinearly with both q and {beta} in the experiment. Drift wave stability analysis yields linear growth rates that do not reproduce experimental trends in {chi} with q{sub min} and q{sub 95}. At high beta, necessary to maximize f{sub BS}, the plasma duration is often limited by n=1 tearing modes, whose stability also depends on the J profile. Broadly deposited electron cyclotron (EC) current at mid-radius was found to supply part of the required noninductive current and to positively affect the tearing stability. The modes appear when J{sub EC} is turned off for stable cases and always appear when the EC deposition is shifted outwards. The variation in the EC scan results is consistent with PEST3 calculations, showing that the tearing stability becomes extremely sensitive to small perturbations of the equilibrium in wall-stabilized plasmas run close to the ideal MHD limit. These modeling results are being used to design new experiments with higher ideal and tearing limits. A new capability for off-axis neutral beam injection system will be used to explore higher q{sub min} scenarios and different current alignments.

  10. A KNOWLEDGE DISCOVERY STRATEGY FOR RELATING SEA SURFACE TEMPERATURES TO FREQUENCIES OF TROPICAL STORMS AND GENERATING PREDICTIONS OF HURRICANES UNDER 21ST-CENTURY GLOBAL WARMING SCENARIOS

    SciTech Connect (OSTI)

    Race, Caitlin; Steinbach, Michael; Ganguly, Auroop R; Semazzi, Fred; Kumar, Vipin

    2010-01-01

    The connections among greenhouse-gas emissions scenarios, global warming, and frequencies of hurricanes or tropical cyclones are among the least understood in climate science but among the most fiercely debated in the context of adaptation decisions or mitigation policies. Here we show that a knowledge discovery strategy, which leverages observations and climate model simulations, offers the promise of developing credible projections of tropical cyclones based on sea surface temperatures (SST) in a warming environment. While this study motivates the development of new methodologies in statistics and data mining, the ability to solve challenging climate science problems with innovative combinations of traditional and state-of-the-art methods is demonstrated. Here we develop new insights, albeit in a proof-of-concept sense, on the relationship between sea surface temperatures and hurricane frequencies, and generate the most likely projections with uncertainty bounds for storm counts in the 21st-century warming environment based in turn on the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios. Our preliminary insights point to the benefits that can be achieved for climate science and impacts analysis, as well as adaptation and mitigation policies, by a solution strategy that remains tailored to the climate domain and complements physics-based climate model simulations with a combination of existing and new computational and data science approaches.

  11. Using Genetic Algorithms to Search for Failure Scenarios Kevin Mills, James Filliben and Chris Dabrowski from NIST

    E-Print Network [OSTI]

    Using Genetic Algorithms to Search for Failure Scenarios Kevin Mills, James Filliben and Chris Dabrowski from NIST We are investigating the use of genetic algorithms (GAs) to steer system models degradations. Koala Simulator Distribution of Anti-Fitness Scenarios Discovered by the Genetic Algorithm http

  12. Human health impacts for Renewable Energy scenarios from the EnerGEO Platform of Integrated Assessment (PIA)

    E-Print Network [OSTI]

    Boyer, Edmond

    Human health impacts for Renewable Energy scenarios from the EnerGEO Platform of Integrated of renewable energy, affect concentrations of air pollutants and as a consequence affect human health. PM2 as a reference and the Maximum renewable power scenario. 1. Introduction People exposure to fine particulate

  13. Analyzing Dynamic Probabilistic Risk Assessment Data through Topology-Based Clustering

    SciTech Connect (OSTI)

    Diego Mandelli; Dan Maljovec; BeiWang; Valerio Pascucci; Peer-Timo Bremer

    2013-09-01

    We investigate the use of a topology-based clustering technique on the data generated by dynamic event tree methodologies. The clustering technique we utilizes focuses on a domain-partitioning algorithm based on topological structures known as the Morse-Smale complex, which partitions the data points into clusters based on their uniform gradient flow behavior. We perform both end state analysis and transient analysis to classify the set of nuclear scenarios. We demonstrate our methodology on a dataset generated for a sodium-cooled fast reactor during an aircraft crash scenario. The simulation tracks the temperature of the reactor as well as the time for a recovery team to fix the passive cooling system. Combined with clustering results obtained previously through mean shift methodology, we present the user with complementary views of the data that help illuminate key features that may be otherwise hidden using a single methodology. By clustering the data, the number of relevant test cases to be selected for further analysis can be drastically reduced by selecting a representative from each cluster. Identifying the similarities of simulations within a cluster can also aid in the drawing of important conclusions with respect to safety analysis.

  14. Progress in preparing scenarios for operation of the International Thermonuclear Experimental Reactor

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

    Sips, A. C. C.; European Commission, Brussels; Giruzzi, G.; Ide, S.; Kessel, C.; Luce, T. C.; Snipes, J. A.; Stober, J. K.

    2015-02-01

    The development of operating scenarios is one of the key issues in the research for ITER which aims to achieve a fusion gain (Q) of ~10, while producing 500MW of fusion power for ?300 s. The ITER Research plan proposes a success oriented schedule starting in hydrogen and helium, to be followed by a nuclear operation phase with a rapid development towards Q ~ 10 in deuterium/tritium. The Integrated Operation Scenarios Topical Group of the International Tokamak Physics Activity initiates joint activities among worldwide institutions and experiments to prepare ITER operation. Plasma formation studies report robust plasma breakdown in devicesmorewith metal walls over a wide range of conditions, while other experiments use an inclined EC launch angle at plasma formation to mimic the conditions in ITER. Simulations of the plasma burn-through predict that at least 4MW of Electron Cyclotron heating (EC) assist would be required in ITER. For H-modes at q??~ 3, many experiments have demonstrated operation with scaled parameters for the ITER baseline scenario at ne/nGW ~ 0.85. Most experiments, however, obtain stable discharges at H??(y,2) ~ 1.0 only for bN = 2.02.2. For the rampup in ITER, early X-point formation is recommended, allowing auxiliary heating to reduce the flux consumption. A range of plasma inductance (li(3)) can be obtained from 0.65 to 1.0, with the lowest values obtained in H-mode operation. For the rampdown, the plasma should stay diverted maintaining H-mode together with a reduction of the elongation from 1.85 to 1.4. Simulations show that the proposed rampup and rampdown schemes developed since 2007 are compatible with the present ITER design for the poloidal field coils. At 1315 MA and densities down to ne/nGW ~ 0.5, long pulse operation (>1000 s) in ITER is possible at Q ~ 5, useful to provide neutron fluence for Test Blanket Module assessments. ITER scenario preparation in hydrogen and helium requires high input power (>50 MW). H-mode operation in helium may be possible at input powers above 35MW at a toroidal field of 2.65T, for studying H-modes and ELM mitigation. In hydrogen, H-mode operation is expected to be marginal, even at 2.65T with 60MW of input power. Simulation code benchmark studies using hybrid and steady state scenario parameters have proved to be a very challenging and lengthy task of testing suites of codes, consisting of tens of sophisticated modules. Nevertheless, the general basis of the modelling appears sound, with substantial consistency among codes developed by different groups. For a hybrid scenario at 12 MA, the code simulations give a range for Q = 6.58.3, using 30MW neutral beam injection and 20MW ICRH. For non-inductive operation at 79 MA, the simulation results show more variation. At high edge pedestal pressure (Tped ~ 7 keV), the codes predict Q = 3.33.8 using 33MW NB, 20MW EC, and 20MW ion cyclotron to demonstrate the feasibility of steady-state operation with the day-1 heating systems in ITER. Simulations using a lower edge pedestal temperature (~3 keV) but improved core confinement obtain Q = 56.5, when ECCD is concentrated at mid-radius and ~ 20MW off-axis current drive (ECCD or LHCD) is added. Several issues remain to be studied, including plasmas with dominant electron heating, mitigation of transient heat loads integrated in scenario demonstrations and (burn) control simulations in ITER scenarios.less

  15. A Flux-Scaling Scenario for High-Scale Moduli Stabilization in String Theory

    E-Print Network [OSTI]

    Blumenhagen, Ralph; Fuchs, Michael; Herschmann, Daniela; Plauschinn, Erik; Sekiguchi, Yuta; Wolf, Florian

    2015-01-01

    Tree-level moduli stabilization via geometric and non-geometric fluxes in type IIB orientifolds on Calabi-Yau manifolds is investigated. The focus is on stable non-supersymmetric minima, where all moduli are fixed except for some massless axions. The scenario includes the purely axionic orientifold-odd moduli. A set of vacua allowing for parametric control over the moduli vacuum expectation values and their masses is presented, featuring a specific scaling with the fluxes. Uplift mechanisms and supersymmetry breaking soft masses on MSSM-like D7-branes are discussed as well. This scenario provides a complete effective framework for realizing the idea of F-term axion monodromy inflation in string theory. It is argued that, with all masses close to the Planck and GUT scales, one is confronted with working at the threshold of controlling all mass hierarchies.

  16. Top pair production at a future $e^+e^-$ machine in a composite Higgs scenario

    E-Print Network [OSTI]

    Daniele Barducci; Stefania De Curtis; Stefano Moretti; Giovanni Marco Pruna

    2015-04-21

    The top quark plays a central role in many New Physics scenarios and in understanding the details of Electro-Weak Symmetry Breaking. In the short- and mid-term future, top-quark studies will mainly be driven by the experiments at the Large Hadron Collider. Exploration of top quarks will, however, be an integral part of particle physics studies at any future facility and an $e^+ e^-$ collider will have a very comprehensive top-quark physics program. We discuss the possibilities of testing NP in the top-quark sector within a composite Higgs scenario through deviations from the Standard Model in top pair production for different Centre-of-Mass energy options of a future $e^+e^-$ machine. In particular, we focus on precision studies of the top-quark sector at a CM energy ranging from 370 GeV up to 3 TeV.

  17. Top pair production at a future $e^+e^-$ machine in a composite Higgs scenario

    E-Print Network [OSTI]

    Daniele Barducci; Stefania De Curtis; Stefano Moretti; Giovanni Marco Pruna

    2015-09-06

    The top quark plays a central role in many New Physics scenarios and in understanding the details of Electro-Weak Symmetry Breaking. In the short- and mid-term future, top-quark studies will mainly be driven by the experiments at the Large Hadron Collider. Exploration of top quarks will, however, be an integral part of particle physics studies at any future facility and an $e^+ e^-$ collider will have a very comprehensive top-quark physics program. We discuss the possibilities of testing NP in the top-quark sector within a composite Higgs scenario through deviations from the Standard Model in top pair production for different Centre-of-Mass energy options of a future $e^+e^-$ machine. In particular, we focus on precision studies of the top-quark sector at a CM energy ranging from 370 GeV up to 3 TeV.

  18. Sensitivity studies for r-process nucleosynthesis in three astrophysical scenarios

    E-Print Network [OSTI]

    R. Surman; M. Mumpower; J. Cass; I. Bentley; A. Aprahamian; G. C. McLaughlin

    2013-08-31

    In rapid neutron capture, or r-process, nucleosynthesis, heavy elements are built up via a sequence of neutron captures and beta decays that involves thousands of nuclei far from stability. Though we understand the basics of how the r-process proceeds, its astrophysical site is still not conclusively known. The nuclear network simulations we use to test potential astrophysical scenarios require nuclear physics data (masses, beta decay lifetimes, neutron capture rates, fission probabilities) for all of the nuclei on the neutron-rich side of the nuclear chart, from the valley of stability to the neutron drip line. Here we discuss recent sensitivity studies that aim to determine which individual pieces of nuclear data are the most crucial for r-process calculations. We consider three types of astrophysical scenarios: a traditional hot r-process, a cold r-process in which the temperature and density drop rapidly, and a neutron star merger trajectory.

  19. Technology Deployment Case Studies

    Broader source: Energy.gov [DOE]

    Find technology deployment case studies below. Click on eachindividual project linkto see the full case study. You can also view a map of technology deployment case studies.

  20. Is the Interacting Dark Matter Scenario an Alternative to Dark Energy ?

    E-Print Network [OSTI]

    Basilakos, S

    2008-01-01

    We study the global dynamics of the universe within the framework of the Interacting Dark Matter (IDM) scenario. Assuming that the dark matter obeys the collisional Boltzmann equation, we can derive analytical solutions of the global density evolution, which can accommodate an accelerated expansion, equivalent to either the {\\em quintessence} or the standard $\\Lambda$ models. We also find realistic solutions in which the present time is located after the inflection point.

  1. Perturbations of the metric induced by back - reaction in the warm inflation scenario

    E-Print Network [OSTI]

    Mauricio Bellini

    1999-12-20

    A second-order expansion for the quantum fluctuations of the matter field was considered in the framemork of the warm inflation scenario. The friction and Hubble parameters were expanded by means of a semiclassical approach. The fluctuations of the Hubble parameter generates fluctuations of the metric. These metric fluctuations produce an effective term of curvature. The power spectrum for the metric fluctuations can be calculated on the infrared sector.

  2. Chemical aspects of cylinder corrosion and a scenario for hole development

    SciTech Connect (OSTI)

    Barber, E.J. [Martin Marietta Energy Systems, Oak Ridge, TN (United States)

    1991-12-31

    In June 1990, two cylinders in the depleted UF{sub 6} cylinder storage yards at Portsmouth were discovered to have holes in their walls at the valve-end stiffening ring at a point below the level of the gas-solid interface of the UF{sub 6}. The cylinder with the larger hole, which extended under the stiffening ring, was stacked in a top row 13 years ago. The cylinder with the smaller hole had been stacked in a bottom row 4 years ago. The lifting lugs of the adjacent cylinders pointed directly at the holes. A Cylinder Investigating Committee was appointed to determine the cause or causes of the holes and to assess the implications of these findings. This report contains a listing of the chemically related facts established by the Investigating Committee with the cooperation of the Operations and Technical Support Divisions at the Portsmouth Gaseous Diffusion Plant, the scenario developed to explain these findings and some implications of this scenario. In summary, the interrelated reactions of water, solid UF{sub 6} and iron presented by R. L. Ritter are used to develop a scenario which explains the observations and deductions made during the investigation. The chemical processes are intimately related to the course of the last three of the four stages of hole development. A simple model is proposed which permits semiquantitative prediction of such information as the HF loss rates as a function of time, the rate of hole enlargement, the time to hydrolyze a cylinder of UF{sub 6} and the approximate size of the hole. The scenario suggests that the environmental consequences associated with a developing hole in a depleted UF{sub 6} cylinder are minimal for the first several years but will become significant if too many years pass before detection. The overall environmental picture is presented in more detail elsewhere.

  3. The role of renewable energy in climate stabilization: results from the EMF 27 scenarios

    SciTech Connect (OSTI)

    Luderer, Gunnar; Krey, Volker; Calvin, Katherine V.; Merrick, James; Mima, Silvana; Pietzcker, Robert; Van Vliet, Jasper; Wada, Kenichi

    2013-10-15

    This paper uses the EMF27 scenarios to explore the role of renewable energy (RE) in climate change mitigation. Currently RE supplies almost 20 % of global electricity demand. Almost all EMF27 mitigation scenarios show a strong increase in renewable power production, with a substantial ramp-up of wind and solar power deployment. In many scenarios, renewables are the most important long-term mitigation option for power supply. Wind energy is competitive even without climate policy, whereas the prospects of solar photovoltaics (PV) are highly contingent on the ambitiousness of climate policy. Bioenergy is an important and versatile energy carrier; howeverwith the exception of low temperature heatthere is less scope for renewables other than biomass for non-electric energy supply. Despite the important role of wind and solar power in climate change mitigation scenarios with full technology availability, limiting their deployment has a relatively small effect on mitigation costs, if nuclear and carbon capture and storage (CCS)which can serve as substitutes in low-carbon power supplyare available. Limited bioenergy availability in combination with limited wind and solar power by contrast, results in a more substantial increase in mitigation costs. While a number of robust insights emerge, the results on renewable energy deployment levels vary considerably across the models. An in-depth analysis of a subset of EMF27 reveals substantial differences in modeling approaches and parameter assumptions. To a certain degree, differences in model results can be attributed to different assumptions about technology costs, resource potentials and systems integration.

  4. Naturalness and stability of the generalized Chaplygin gas in the seesaw cosmon scenario

    E-Print Network [OSTI]

    Alex E. Bernardini; O. Bertolami

    2010-04-05

    The seesaw mechanism is conceived on the basis that a mass scale, $\\xi$, and a dimensionless scale, $s$, can be fine-tuned in order to control the dynamics of active and sterile neutrinos through cosmon-type equations of motion: the seesaw cosmon equations. This allows for sterile neutrinos to be a dark matter candidate. In this scenario, the dynamical masses and energy densities of active and sterile neutrinos can be consistently embedded into the generalized Chaplygin gas (GCG), the unified dark sector model. In addition, dark matter adiabatically coupled to dark energy allows for a natural decoupling of the (active) mass varying neutrino (MaVaN) component from the dark sector. Thus MaVaN's turn into a secondary effect. Through the scale parameters, $\\xi$ and $s$, the proposed scenario allows for a convergence among three distinct frameworks: the cosmon scenario, the seesaw mechanism for mass generation and the GCG model. It is found that the equation of state of the perturbations is the very one of the GCG background cosmology so that all the results from this approach are maintained, being smoothly modified by active neutrinos. Constrained by the seesaw relations, it is shown that the mass varying mechanism is responsible for the stability against linear perturbations and is indirectly related to the late time cosmological acceleration.

  5. A new scenario framework for climate change research: background, process, and future directions

    SciTech Connect (OSTI)

    Ebi, Kristie L.; Hallegatte, Stephane; Kram, Tom; Arnell, Nigel; Carter, Tim; Edmonds, James A.; Kriegler, Elmar; Mathur, Ritu; O'Neill, Brian; Riahi, Keywan; Winkler, Harald; Van Vuuren, Detlef; Zwickel, Timm

    2014-02-01

    The scientific community is developing new integrated global, regional, and sectoral scenarios to facilitate interdisciplinary research and assessment to explore the range of possible future climates and related physical changes could pose to human and natural systems; how these could interact with social, economic, and environmental development pathways; the degree to which mitigation and adaptation policies can avoid and reduce those risks; the costs and benefits of various policy mixes; residual impacts under alternative pathways; and the relationship with sustainable development. This paper provides the background to, and process of, developing the conceptual framework for these scenarios, described in three other papers in this Special Issue (van Vuuren et al.; O'Neill et al.; Kriegler et al.). The paper also discusses research needs to further develop and apply this framework. The goal is to encourage climate change researchers from a broad range of perspectives and disciplines to work together to develop policy-relevant scenarios and explore the implications of different possible futures for the challenges and opportunities human and natural systems could face with increasing climate change.

  6. Life cycle assessment of four municipal solid waste management scenarios in China

    SciTech Connect (OSTI)

    Hong Jinglan, E-mail: hongjing@sdu.edu.c [School of Environmental Science and Engineering, Shandong University, Jinan 250100 (China); Li Xiangzhi [Department of Pathology, University of Michigan, 1301 Catherine, Ann Arbor, MI 48109 (United States); Zhaojie Cui [School of Environmental Science and Engineering, Shandong University, Jinan 250100 (China)

    2010-11-15

    A life cycle assessment was carried out to estimate the environmental impact of municipal solid waste. Four scenarios mostly used in China were compared to assess the influence of various technologies on environment: (1) landfill, (2) incineration, (3) composting plus landfill, and (4) composting plus incineration. In all scenarios, the technologies significantly contribute to global warming and increase the adverse impact of non-carcinogens on the environment. The technologies played only a small role in the impact of carcinogens, respiratory inorganics, terrestrial ecotoxicity, and non-renewable energy. Similarly, the influence of the technologies on the way other elements affect the environment was ignorable. Specifically, the direct emissions from the operation processes involved played an important role in most scenarios except for incineration, while potential impact generated from transport, infrastructure and energy consumption were quite small. In addition, in the global warming category, highest potential impact was observed in landfill because of the direct methane gas emissions. Electricity recovery from methane gas was the key factor for reducing the potential impact of global warming. Therefore, increasing the use of methane gas to recover electricity is highly recommended to reduce the adverse impact of landfills on the environment.

  7. MSSM Higgs Boson Searches at the LHC: Benchmark Scenarios after the Discovery of a Higgs-like Particle

    SciTech Connect (OSTI)

    Carena, M.; Heinemeyer, S.; Stl, O.; Wagner, C.E.M.; Weiglein, G.

    2013-09-01

    A Higgs-like particle with a mass of about 125.5 GeV has been discovered at the LHC. Within the current experimental uncertainties, this new state is compatible with both the predictions for the Standard Model (SM) Higgs boson and with the Higgs sector in the Minimal Supersymmetric Standard Model (MSSM). We propose new low-energy MSSM benchmark scenarios that, over a wide parameter range, are compatible with the mass and production rates of the observed signal. These scenarios also exhibit interesting phenomenology for the MSSM Higgs sector. We propose a slightly updated version of the well-known mh-max scenario, and a modified scenario (mh-mod), where the light CP-even Higgs boson can be interpreted as the LHC signal in large parts of the MA-tan \\beta\\ plane. Furthermore, we define a light stop scenario that leads to a suppression of the lightest CP-even Higgs gluon fusion rate, and a light stau scenario with an enhanced decay rate of h to \\gamma\\gamma\\ at large tan \\beta. We also suggest a \\tau-phobic Higgs scenario in which the lightest Higgs can have suppressed couplings to down-type fermions. We propose to supplement the specified value of the \\mu\\ parameter in some of these scenarios with additional values of both signs. This has a significant impact on the interpretation of searches for the non SM-like MSSM Higgs bosons. We also discuss the sensitivity of the searches to heavy Higgs decays into light charginos and neutralinos, and to decays of the form H to hh. Finally, in addition to all the other scenarios where the lightest CP-even Higgs is interpreted as the LHC signal, we propose a low-MH scenario, where instead the heavy CP-even Higgs boson corresponds to the new state around 125.5 GeV.

  8. Future climate change under RCP emission scenarios with GISS ModelE2

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

    Nazarenko, L.; NASA Goddard Institute for Space Studies, New York, NY; Schmidt, G. A.; Miller, R. L.; Tausnev, N.; Trinnovim LLC, New York, NY; Kelley, M.; Trinnovim LLC, New York, NY; Ruedy, R.; Trinnovim LLC, New York, NY; et al

    2015-02-24

    We examine the anthropogenically forced climate response for the 21st century representative concentration pathway (RCP) emission scenarios and their extensions for the period 21012500. The experiments were performed with ModelE2, a new version of the NASA Goddard Institute for Space Sciences (GISS) coupled general circulation model that includes three different versions for the atmospheric composition components: a noninteractive version (NINT) with prescribed composition and a tuned aerosol indirect effect (AIE), the TCAD version with fully interactive aerosols, whole-atmosphere chemistry, and the tuned AIE, and the TCADI version which further includes a parameterized first indirect aerosol effect on clouds. Each atmosphericmoreversion is coupled to two different ocean general circulation models: the Russell ocean model (GISS-E2-R) and HYCOM (GISS-E2-H). By 2100, global mean warming in the RCP scenarios ranges from 1.0 to 4.5#2;C relative to 18501860 mean temperature in the historical simulations. In the RCP2.6 scenario, the surface warming in all simulations stays below a 2#2;C threshold at the end of the 21st century. For RCP8.5, the range is 3.54.5#2;C at 2100. Decadally averaged sea ice area changes are highly correlated to global mean surface air temperature anomalies and show steep declines in both hemispheres, with a larger sensitivity during winter months. By the year 2500, there are complete recoveries of the globally averaged surface air temperature for all versions of the GISS climate model in the low-forcing scenario RCP2.6. TCADI simulations show enhanced warming due to greater sensitivity to CO?, aerosol effects, and greater methane feedbacks, and recovery is much slower in RCP2.6 than with the NINT and TCAD versions. All coupled models have decreases in the Atlantic overturning stream function by 2100. In RCP2.6, there is a complete recovery of the Atlantic overturning stream function by the year 2500 while with scenario RCP8.5, the E2-R climate model produces a complete shutdown of deep water formation in the North Atlantic.less

  9. Future climate change under RCP emission scenarios with GISS ModelE2

    SciTech Connect (OSTI)

    Nazarenko, L.; Schmidt, G. A.; Miller, R. L.; Tausnev, N.; Kelley, M.; Ruedy, R.; Russell, G. L.; Aleinov, I.; Bauer, M.; Bauer, S.; Bleck, R.; Canuto, V.; Cheng, Y.; Clune, T. L.; Del Genio, A. D.; Faluvegi, G.; Hansen, J. E.; Healy, R. J.; Kiang, N. Y.; Koch, D.; Lacis, A. A.; LeGrande, A. N.; Lerner, J.; Lo, K. K.; Menon, S.; Oinas, V.; Perlwitz, J.; Puma, M. J.; Rind, D.; Romanou, A.; Sato, M.; Shindell, D. T.; Sun, S.; Tsigaridis, K.; Unger, N.; Voulgarakis, A.; Yao, M. -S.; Zhang, Jinlun

    2015-02-24

    We examine the anthropogenically forced climate response for the 21st century representative concentration pathway (RCP) emission scenarios and their extensions for the period 21012500. The experiments were performed with ModelE2, a new version of the NASA Goddard Institute for Space Sciences (GISS) coupled general circulation model that includes three different versions for the atmospheric composition components: a noninteractive version (NINT) with prescribed composition and a tuned aerosol indirect effect (AIE), the TCAD version with fully interactive aerosols, whole-atmosphere chemistry, and the tuned AIE, and the TCADI version which further includes a parameterized first indirect aerosol effect on clouds. Each atmospheric version is coupled to two different ocean general circulation models: the Russell ocean model (GISS-E2-R) and HYCOM (GISS-E2-H). By 2100, global mean warming in the RCP scenarios ranges from 1.0 to 4.5#2;C relative to 18501860 mean temperature in the historical simulations. In the RCP2.6 scenario, the surface warming in all simulations stays below a 2#2;C threshold at the end of the 21st century. For RCP8.5, the range is 3.54.5#2;C at 2100. Decadally averaged sea ice area changes are highly correlated to global mean surface air temperature anomalies and show steep declines in both hemispheres, with a larger sensitivity during winter months. By the year 2500, there are complete recoveries of the globally averaged surface air temperature for all versions of the GISS climate model in the low-forcing scenario RCP2.6. TCADI simulations show enhanced warming due to greater sensitivity to CO?, aerosol effects, and greater methane feedbacks, and recovery is much slower in RCP2.6 than with the NINT and TCAD versions. All coupled models have decreases in the Atlantic overturning stream function by 2100. In RCP2.6, there is a complete recovery of the Atlantic overturning stream function by the year 2500 while with scenario RCP8.5, the E2-R climate model produces a complete shutdown of deep water formation in the North Atlantic.

  10. Transportation Energy Futures Series: Alternative Fuel Infrastructure Expansion: Costs, Resources, Production Capacity, and Retail Availability for Low-Carbon Scenarios

    SciTech Connect (OSTI)

    Melaina, M. W.; Heath, G.; Sandor, D.; Steward, D.; Vimmerstedt, L.; Warner, E.; Webster, K. W.

    2013-04-01

    Achieving the Department of Energy target of an 80% reduction in greenhouse gas emissions by 2050 depends on transportation-related strategies combining technology innovation, market adoption, and changes in consumer behavior. This study examines expanding low-carbon transportation fuel infrastructure to achieve deep GHG emissions reductions, with an emphasis on fuel production facilities and retail components serving light-duty vehicles. Three distinct low-carbon fuel supply scenarios are examined: Portfolio: Successful deployment of a range of advanced vehicle and fuel technologies; Combustion: Market dominance by hybridized internal combustion engine vehicles fueled by advanced biofuels and natural gas; Electrification: Market dominance by electric drive vehicles in the LDV sector, including battery electric, plug-in hybrid, and fuel cell vehicles, that are fueled by low-carbon electricity and hydrogen. A range of possible low-carbon fuel demand outcomes are explored in terms of the scale and scope of infrastructure expansion requirements and evaluated based on fuel costs, energy resource utilization, fuel production infrastructure expansion, and retail infrastructure expansion for LDVs. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored transportation-related strategies for abating GHGs and reducing petroleum dependence.

  11. Super-Eddington wind scenario for the progenitors of type Ia supernovae: Accreting He-rich matter onto white dwarfs

    E-Print Network [OSTI]

    Wang, Bo; Ma, Xin; Liu, Dongdong; Cui, Xiao; Han, Zhanwen

    2015-01-01

    Supernovae of type Ia (SNe Ia) are believed to be thermonuclear explosions of carbon-oxygen white dwarfs (CO WDs). However, the mass accretion process onto CO WDs is still not completely understood. In this paper, we study the accretion of He-rich matter onto CO WDs and explore a scenario in which a strong wind forms on the surface of the WD if the total luminosity exceeds the Eddington limit. Using a stellar evolution code called modules for experiments in stellar astrophysics (MESA), we simulated the He accretion process onto CO WDs for WDs with masses of 0.6-1.35Msun and various accretion rates of 10^{-8}-10^{-5}Msun/yr. If the contribution of the total luminosity is included when determining the Eddington accretion rate, then a super-Eddington wind could be triggered at relatively lower accretion rates than those of previous studies based on steady-state models. The super-Eddington wind can prevent the WDs with high accretion rates from evolving into red-giant-like He stars. We found that the contribution...

  12. US National Climate Assessment (NCA) Scenarios for Assessing Our Climate Future: Issues and Methodological Perspectives Background Whitepaper for Participants

    SciTech Connect (OSTI)

    Moss, Richard H.; Engle, Nathan L.; Hall, John; Jacobs, Kathy; Lempert, Rob; Mearns, L. O.; Melillo, Jerry; Mote, Phil; O'Brien, Sheila; Rosenzweig, C.; Ruane, Alex; Sheppard, Stephen; Vallario, Robert W.; Wiek, Arnim; Wilbanks, Thomas

    2011-10-01

    This whitepaper is intended to provide a starting point for discussion at a workshop for the National Climate Assessment (NCA) that focuses on the use and development of scenarios. The paper will provide background needed by participants in the workshop in order to review options for developing and using scenarios in NCA. The paper briefly defines key terms and establishes a conceptual framework for developing consistent scenarios across different end uses and spatial scales. It reviews uses of scenarios in past U.S. national assessments and identifies potential users of and needs for scenarios for both the report scheduled for release in June 2013 and to support an ongoing distributed assessment process in sectors and regions around the country. Because scenarios prepared for the NCA will need to leverage existing research, the paper takes account of recent scientific advances and activities that could provide needed inputs. Finally, it considers potential approaches for providing methods, data, and other tools for assessment participants. We note that the term 'scenarios' has many meanings. An important goal of the whitepaper (and portions of the workshop agenda) is pedagogical (i.e., to compare different meanings and uses of the term and make assessment participants aware of the need to be explicit about types and uses of scenarios). In climate change research, scenarios have been used to establish bounds for future climate conditions and resulting effects on human and natural systems, given a defined level of greenhouse gas emissions. This quasi-predictive use contrasts with the way decision analysts typically use scenarios (i.e., to consider how robust alternative decisions or strategies may be to variation in key aspects of the future that are uncertain). As will be discussed, in climate change research and assessment, scenarios describe a range of aspects of the future, including major driving forces (both human activities and natural processes), changes in climate and related environmental conditions (e.g., sea level), and evolution of societal capability to respond to climate change. This wide range of scenarios is needed because the implications of climate change for the environment and society depend not only on changes in climate themselves, but also on human responses. This degree of breadth introduces and number of challenges for communication and research.

  13. Measuring Supersymmetric Particle Masses at the LHC in Scenarios with Baryon-Number R-Parity Violating Couplings

    E-Print Network [OSTI]

    B. C. Allanach; A. J. Barr; L. Drage; C. G. Lester; D. Morgan; M. A. Parker; P. Richardson B. R. Webber

    2001-02-14

    The measurement of sparticle masses in the Minimal Supersymmetric Standard Model at the LHC is analysed, in the scenario where the lightest neutralino decays into three quarks. Such decays, occurring through the baryon-number violating coupling lambda"\\_ijk, pose a severe challenge to the capability of the LHC detectors since the final state has no missing energy signature and a high jet multiplicity. We focus on the case of non-zero lambda"\\_212 which is the most difficult experimentally. The proposed method is valid over a wide range of SUGRA parameter space with lambda"\\_212 between 10^{-5}-0.1. Simulations are performed of the ATLAS detector at the Large Hadron Collider. Using the lightest neutralino from the decay chain left-squark to quark + next-to-lightest neutralino to right-slepton + lepton + quark and finally to lightest neutralino + lepton pair + quark, we show that the lightest and next-to-lightest neutralino masses can be measured by 3-jet and 3-jet + lepton pair invariant mass combinations. At the SUGRA point M_0=100 GeV, M_{1/2}=300 GeV, A_0=300 GeV, tan beta=10, sign of mu positive and with lambda"\\_212=0.005, we achieve statistical (systematic) errors of 3 (3), 3 (3), 0.3 (4) and 5 (12) GeV respectively for the masses of the lightest neutralino, next-to-lightest neutralino, right-slepton and left-squark, with an integrated luminosity of 30 fb^{-1}.

  14. Japan's Long-term Energy Demand and Supply Scenario to 2050 - Estimation for the Potential of Massive CO2 Mitigation

    SciTech Connect (OSTI)

    Komiyama, Ryoichi; Marnay, Chris; Stadler, Michael; Lai, Judy; Borgeson, Sam; Coffey, Brian; Azevedo, Ines Lima

    2009-09-01

    In this analysis, the authors projected Japan's energy demand/supply and energy-related CO{sub 2} emissions to 2050. Their analysis of various scenarios indicated that Japan's CO{sub 2} emissions in 2050 could be potentially reduced by 26-58% from the current level (FY 2005). These results suggest that Japan could set a CO{sub 2} emission reduction target for 2050 at between 30% and 60%. In order to reduce CO{sub 2} emissions by 60% in 2050 from the present level, Japan will have to strongly promote energy conservation at the same pace as an annual rate of 1.9% after the oil crises (to cut primary energy demand per GDP (TPES/GDP) in 2050 by 60% from 2005) and expand the share of non-fossil energy sources in total primary energy supply in 2050 to 50% (to reduce CO{sub 2} emissions per primary energy demand (CO{sub 2}/TPES) in 2050 by 40% from 2005). Concerning power generation mix in 2050, nuclear power will account for 60%, solar and other renewable energy sources for 20%, hydro power for 10% and fossil-fired generation for 10%, indicating substantial shift away from fossil fuel in electric power supply. Among the mitigation measures in the case of reducing CO{sub 2} emissions by 60% in 2050, energy conservation will make the greatest contribution to the emission reduction, being followed by solar power, nuclear power and other renewable energy sources. In order to realize this massive CO{sub 2} abatement, however, Japan will have to overcome technological and economic challenges including the large-scale deployment of nuclear power and renewable technologies.

  15. Identifying and Mitigating Potential Nutrient and Sediment Hot Spots under a Future Scenario in the Missouri River Basin

    SciTech Connect (OSTI)

    Wu, May; Zhang, Zhonglong

    2015-09-01

    Using the Soil and Water Assessment Tool (SWAT) for large-scale watershed modeling could be useful for evaluating the quality of the water in regions that are dominated by nonpoint sources in order to identify potential hot spots for which mitigating strategies could be further developed. An analysis of water quality under future scenarios in which changes in land use would be made to accommodate increased biofuel production was developed for the Missouri River Basin (MoRB) based on a SWAT model application. The analysis covered major agricultural crops and biofuel feedstock in the MoRB, including pasture land, hay, corn, soybeans, wheat, and switchgrass. The analysis examined, at multiple temporal and spatial scales, how nitrate, organic nitrogen, and total nitrogen; phosphorus, organic phosphorus, inorganic phosphorus, and total phosphorus; suspended sediments; and water flow (water yield) would respond to the shifts in land use that would occur under proposed future scenarios. The analysis was conducted at three geospatial scales: (1) large tributary basin scale (two: Upper MoRB and Lower MoRB); (2) regional watershed scale (seven: Upper Missouri River, Middle Missouri River, Middle Lower Missouri River, Lower Missouri River, Yellowstone River, Platte River, and Kansas River); and (3) eight-digit hydrologic unit (HUC-8) subbasin scale (307 subbasins). Results showed that subbasin-level variations were substantial. Nitrogen loadings decreased across the entire Upper MoRB, and they increased in several subbasins in the Lower MoRB. Most nitrate reductions occurred in lateral flow. Also at the subbasin level, phosphorus in organic, sediment, and soluble forms was reduced by 35%, 45%, and 65%, respectively. Suspended sediments increased in 68% of the subbasins. The water yield decreased in 62% of the subbasins. In the Kansas River watershed, the water quality improved significantly with regard to every nitrogen and phosphorus compound. The improvement was clearly attributable to the conversion of a large amount of land to switchgrass. The Middle Lower Missouri River and Lower Missouri River were identified as hot regions. Further analysis identified four subbasins (10240002, 10230007, 10290402, and 10300200) as being the most vulnerable in terms of sediment, nitrogen, and phosphorus loadings. Overall, results suggest that increasing the amount of switchgrass acreage in the hot spots should be considered to mitigate the nutrient loads. The study provides an analytical method to support stakeholders in making informed decisions that balance biofuel production and water sustainability.

  16. Final report: Task 4a.2 20% wind scenario assessment of electric grid operational features

    SciTech Connect (OSTI)

    Toole, Gasper L.

    2009-01-01

    Wind integration modeling in electricity generation capacity expansion models is important in that these models are often used to inform political or managerial decisions. Poor representation of wind technology leads to under-estimation of wind's contribution to future energy scenarios which may hamper growth of the industry. The NREL's Wind Energy Deployment System (WinDS) model provides the most detailed representation of geographically disperse renewable resources and the optimization of transmission expansion to access these resources. Because WinDS was selected as the primary modeling tool for the 20% Wind Energy by 2030 study, it is the ideal tool for supplemental studies of the transmission expansion results. However, as the wind industry grows and knowledge related to the wind resource and integration of wind energy into the electric system develops, the WinDS model must be continually improved through additional data and innovative algorithms to capture the primary effects of variable wind generation. The detailed representation of wind technology in the WinDS model can be used to provide improvements to the simplified representation of wind technology in other capacity expansion models. This task did not employ the WinDS model, but builds from it and its results. Task 4a.2 provides an assessment of the electric grid operational features of the 20% Wind scenario and was conducted using power flow models accepted by the utility industry. Tasks 2 provides information regarding the physical flow of electricity on the electric grid which is a critical aspect of infrastructure expansion scenarios. Expanding transmission infrastructure to access remote wind resource in a physically realizable way is essential to achieving 20% wind energy by 2030.

  17. Variability of Power from Large-Scale Solar Photovoltaic Scenarios in the State of Gujarat (Presentation)

    SciTech Connect (OSTI)

    Parsons, B.; Hummon, M.; Cochran, J.; Stoltenberg, B.; Batra, P.; Mehta, B.; Patel, D.

    2014-04-01

    India has ambitious goals for high utilization of variable renewable power from wind and solar, and deployment has been proceeding at a rapid pace. The western state of Gujarat currently has the largest amount of solar generation of any Indian state, with over 855 Megawatts direct current (MWDC). Combined with over 3,240 MW of wind, variable generation renewables comprise nearly 18% of the electric-generating capacity in the state. A new historic 10-kilometer (km) gridded solar radiation data set capturing hourly insolation values for 2002-2011 is available for India. We apply an established method for downscaling hourly irradiance data to one-minute irradiance data at potential PV power production locations for one year, 2006. The objective of this report is to characterize the intra-hour variability of existing and planned photovoltaic solar power generation in the state of Gujarat (a total of 1.9 gigawatts direct current (GWDC)), and of five possible expansion scenarios of solar generation that reflect a range of geographic diversity (each scenario totals 500-1,000 MW of additional solar capacity). The report statistically analyzes one year's worth of power variability data, applied to both the baseline and expansion scenarios, to evaluate diurnal and seasonal power fluctuations, different timescales of variability (e.g., from one to 15 minutes), the magnitude of variability (both total megawatts and relative to installed solar capacity), and the extent to which the variability can be anticipated in advance. The paper also examines how Gujarat Energy Transmission Corporation (GETCO) and the Gujarat State Load Dispatch Centre (SLDC) could make use of the solar variability profiles in grid operations and planning.

  18. Variability of Power from Large-Scale Solar Photovoltaic Scenarios in the State of Gujarat: Preprint

    SciTech Connect (OSTI)

    Parsons, B.; Hummon, M.; Cochran, J.; Stoltenberg, B.; Batra, P.; Mehta, B.; Patel, D.

    2014-04-01

    India has ambitious goals for high utilization of variable renewable power from wind and solar, and deployment has been proceeding at a rapid pace. The western state of Gujarat currently has the largest amount of solar generation of any Indian state, with over 855 Megawatts direct current (MWDC). Combined with over 3,240 MW of wind, variable generation renewables comprise nearly 18% of the electric-generating capacity in the state. A new historic 10-kilometer (km) gridded solar radiation data set capturing hourly insolation values for 2002-2011 is available for India. We apply an established method for downscaling hourly irradiance data to one-minute irradiance data at potential PV power production locations for one year, 2006. The objective of this report is to characterize the intra-hour variability of existing and planned photovoltaic solar power generation in the state of Gujarat (a total of 1.9 gigawatts direct current (GWDC)), and of five possible expansion scenarios of solar generation that reflect a range of geographic diversity (each scenario totals 500-1,000 MW of additional solar capacity). The report statistically analyzes one year's worth of power variability data, applied to both the baseline and expansion scenarios, to evaluate diurnal and seasonal power fluctuations, different timescales of variability (e.g., from one to 15 minutes), the magnitude of variability (both total megawatts and relative to installed solar capacity), and the extent to which the variability can be anticipated in advance. The paper also examines how Gujarat Energy Transmission Corporation (GETCO) and the Gujarat State Load Dispatch Centre (SLDC) could make use of the solar variability profiles in grid operations and planning.

  19. Ground-Motion Simulations of Scenario Earthquakes on the Hayward Fault

    SciTech Connect (OSTI)

    Aagaard, B; Graves, R; Larsen, S; Ma, S; Rodgers, A; Ponce, D; Schwartz, D; Simpson, R; Graymer, R

    2009-03-09

    We compute ground motions in the San Francisco Bay area for 35 Mw 6.7-7.2 scenario earthquake ruptures involving the Hayward fault. The modeled scenarios vary in rupture length, hypocenter, slip distribution, rupture speed, and rise time. This collaborative effort involves five modeling groups, using different wave propagation codes and domains of various sizes and resolutions, computing long-period (T > 1-2 s) or broadband (T > 0.1 s) synthetic ground motions for overlapping subsets of the suite of scenarios. The simulations incorporate 3-D geologic structure and illustrate the dramatic increase in intensity of shaking for Mw 7.05 ruptures of the entire Hayward fault compared with Mw 6.76 ruptures of the southern two-thirds of the fault. The area subjected to shaking stronger than MMI VII increases from about 10% of the San Francisco Bay urban area in the Mw 6.76 events to more than 40% of the urban area for the Mw 7.05 events. Similarly, combined rupture of the Hayward and Rodgers Creek faults in a Mw 7.2 event extends shaking stronger than MMI VII to nearly 50% of the urban area. For a given rupture length, the synthetic ground motions exhibit the greatest sensitivity to the slip distribution and location inside or near the edge of sedimentary basins. The hypocenter also exerts a strong influence on the amplitude of the shaking due to rupture directivity. The synthetic waveforms exhibit a weaker sensitivity to the rupture speed and are relatively insensitive to the rise time. The ground motions from the simulations are generally consistent with Next Generation Attenuation ground-motion prediction models but contain long-period effects, such as rupture directivity and amplification in shallow sedimentary basins that are not fully captured by the ground-motion prediction models.

  20. The Harmonic Oscillator in the Classical Limit of a Minimal-Length Scenario

    E-Print Network [OSTI]

    Quintela, T S; Nogueira, J A

    2015-01-01

    In this work we explicitly solve the problem of the harmonic oscillator in the classical limit of a minimal-length scenario. We show that (i) the motion equation of the oscillator is not linear anymore because the presence of a minimal length introduces an anarmonic term and (ii) its motion is described by a Jacobi sine elliptic function. Therefore the motion is still periodic with the new period depending on the minimal length. This result is very important since it can be used to probe the Planck-scale physics. We show applications of our results in spectroscopy and gravity.

  1. Naked Singularity and Gauss-Bonnet Term in Brane World Scenarios

    E-Print Network [OSTI]

    Ian Low; A. Zee

    2000-05-09

    We add a Gauss-Bonnet term to the Einstein-Hilbert action and study the recent proposal to solve the cosmological constant problem. We also consider the possibility of adding a dilaton potential to the action. In the absence of supersymmetry, we obtain first order Bogomol'nyi equation as a solution-generating method in our scenario. When the coefficient of the Gauss-Bonnet term is positive, the dilaton potential is bounded below. Assuming a simple double-well potential, the dilaton field is found to be a kink in the fifth dimension.

  2. Prototype Development Capabilities of 3D Spatial Interactions and Failures During Scenario Simulation

    SciTech Connect (OSTI)

    Steven Prescott; Ramprasad Sampath; Curtis Smith; Tony Koonce

    2014-09-01

    Computers have been used for 3D modeling and simulation, but only recently have computational resources been able to give realistic results in a reasonable time frame for large complex models. This report addressed the methods, techniques, and resources used to develop a prototype for using 3D modeling and simulation engine to improve risk analysis and evaluate reactor structures and components for a given scenario. The simulations done for this evaluation were focused on external events, specifically tsunami floods, for a hypothetical nuclear power facility on a coastline.

  3. Primordial fluctuations in the warm inflation scenario with a more realistic coarse - grained field

    E-Print Network [OSTI]

    Mauricio Bellini

    2000-01-07

    I study a semiclassical approach to warm inflation scenario introduced in previous works. In this work, I define the fluctuations for the matter field by means of a new coarse - grained field with a suppression factor G. This field describes the matter field fluctuations on the now observable scale of the universe. The power spectrum for the fluctuations of the matter field is analyzed in both, de Sitter and power - law expansions for the universe. The constraint for the spectral index gives a constraint for the mass of the matter field in the de Sitter expansion and a constraint for the friction parameter in the power - law expansion for the universe.

  4. Refined scenario of standard Big Bang nucleosynthesis allowing for nonthermal nuclear reactions in the primordial plasma

    SciTech Connect (OSTI)

    Voronchev, Victor T.; Nakao, Yasuyuki; Nakamura, Makoto; Tsukida, Kazuki [Institute of Nuclear Physics, Moscow State University, Moscow 119991 (Russian Federation); Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka, Fukuoka 819-0395 (Japan); Division of Advanced Plasma Research, Japan Atomic Energy Agency, 2-166 Oaza-Obuchi-Aza-Omotedate, Rokkasho, Kamikita, Aomori 039-3212 (Japan); Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka, Fukuoka 819-0395 (Japan)

    2012-11-12

    The standard scenario of big bang nucleosynthesis (BBN) is generalized to take into account nonthermal nuclear reactions in the primordial plasma. These reactions are naturally triggered in the BBN epoch by fast particles generated in various exoergic processes. It is found that, although such particles can appreciably enhance the rates of some individual reactions, their influence on the whole process of element production is not significant. The nonthermal corrections to element abundances are obtained to be 0.1% ({sup 3}H), -0.03% ({sup 7}Li), and 0.34 %-0.63% (CNO group).

  5. Subsea innovative boosting technologies on deep water scenarios -- Impacts and demands

    SciTech Connect (OSTI)

    Caetano, E.F.; Mendonca, J.E.; Pagot, P.R.; Cotrim, M.L.; Camargo, R.M.T.; Assayag, M.I.

    1995-12-31

    This paper presents the importance of deep water scenario for Brazil, the PETROBRAS Deep and Ultra-Deep Water R and D Program (PROCAP-2000) and the candidate fields for the deployment of subsea innovative boosting technologies (ESPS -- electrical submersible pump in subsea wells, SSS -- subsea separation systems and SBMS -- subsea multiphase flow pumping system) as well as the problems associated with the flow assurance in such conditions. The impact of those innovative systems, their technological stage and remaining demands to make them available for deployment in offshore subsea areas, mainly in giant deepwater fields, are discussed and predicted.

  6. Numerical and Experimental Investigations of Polyurethane Foam for Use as Cask Impact Limiter in Accidental Drop Scenarios - 12099

    SciTech Connect (OSTI)

    Kasparek, Eva M.; Voelzke, Holger; Scheidemann, Robert; Zencker, Uwe [BAM Federal Institute for Materials Research and Testing, 12200 Berlin (Germany)

    2012-07-01

    Rigid, closed-cell polyurethane foams are frequently used as cask impact limiters in nuclear materials and hazardous waste transport due to their high energy-absorption potential. When assessing the cask integrity in accidental scenarios based on numerical simulations, a description of the foam damping properties is required for different strain rates and for a wide temperature range with respect to waste heat generation in conjunction with critical operating and environmental conditions. Implementation and adaption of a respective finite element material model strongly relies on an appropriate experimental data base. Even though extensive impact experiments were conducted e.g. in Sandia National Laboratories, Savannah River National Laboratory and by Rolls Royce plc, not all relevant factors were taken into account. Hence, BAM who is in charge of the mechanical evaluation of such packages within the approval procedure in Germany, incorporated systematic test series into a comprehensive research project aimed to develop numerical methods for a couple of damping materials. In a first step, displacement driven compression tests have been performed on confined, cubic specimens at five loading rates ranging from 0.02 mm/s to 3 m/s at temperatures between +90 deg. C and -40 deg. C. Materials include two different polyurethane foam types called FR3718 and FR3730 having densities of 280 kg/m{sup 3} and 488 kg/m{sup 3} from the product line-up of General Plastics Manufacturing Company. Their data was used to adapt an advanced plasticity model allowing for reliably simulating cellular materials under multi-axial compression states. Therefore, an automated parameter identification procedure had been established by combining an artificial neural network with local optimization techniques. Currently, the selected numerical material input values are validated and optimized by means of more complex loading configurations with the prospect of establishing methods applicable to impact limiters under severe accidental conditions. The reference data base is provided by experiments, where weights between 212 kg and 1200 kg have been dropped from heights between 1.25 m and 7 m on confined 10 cm cubic foam specimens. By presenting the deviations between experimental values and the corresponding output of finite element simulations, the potentials and restrictions of the resulting models are highlighted. Systematic compression tests on polyurethane foams had been performed at BAM test site within the framework of a research project on impact limiters for handling casks for radioactive waste. The experimental results had been used to adapt numerical models for simulating the behaviour of different foam types at different temperatures. The loading speed, however, turned out to have a major influence on their flow curves that can not be captured by simple strain-rate dependent multipliers. Especially for guided drop tests that come close to real accidental scenarios there is a significant gap between experimental and numerical results even when applying such advanced material models. Hence, the extensive data base is currently deployed for expanding the standard algorithms to include adequate dynamic hardening factors. (authors)

  7. Exploring the spatial implications of capacity constraints in public transportation systems : a scenario-based analysis of London

    E-Print Network [OSTI]

    Tuttle, Stephen B. (Stephen Bradford)

    2014-01-01

    In growing regions with large public transportation systems, the distribution of available capacity can affect where development occurs and determine which users and land uses suffer from further crowding. However, analyzing ...

  8. The Influence on Climate Change of Differing Scenarios for Future Development Analyzed Using the MIT Integrated Global System Model

    E-Print Network [OSTI]

    Prinn, Ronald G.

    A wide variety of scenarios for future development have played significant roles in climate policy discussions. This paper presents projections of greenhouse gas (GHG) concentrations, sea level rise due to thermal expansion ...

  9. Japan's Long-term Energy Demand and Supply Scenario to 2050 - Estimation for the Potential of Massive CO2 Mitigation

    E-Print Network [OSTI]

    Komiyama, Ryoichi

    2010-01-01

    scenario, electricity generation using non-fossil fuels willhome fuel cell and other electricity generation systemsFuel Cells The introduction of distributed generation sources is expected to help reduce investment in electricity

  10. Modeling Tidal Freshwater Marsh Sustainability in the SacramentoSan Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    energy zones because of their higher inorganic sediment supply.supply (25 suites of 18 model scenarios each), we could not clearly define a single tertiary The high- and low-energy

  11. Japan's Long-term Energy Demand and Supply Scenario to 2050 - Estimation for the Potential of Massive CO2 Mitigation

    E-Print Network [OSTI]

    Komiyama, Ryoichi

    2010-01-01

    Framework Energy supply/demand forecasts change greatlyThis analysis makes energy supply/demand forecasts for theEnergy Demand (Reference Scenario) In millions of tons oil equivalent (Mtoe) I l f Results* Forecasts *

  12. Modeling Tidal Freshwater Marsh Sustainability in the SacramentoSan Joaquin Delta Under a Broad Suite of Potential Future Scenarios

    E-Print Network [OSTI]

    Swanson, Kathleen M.; Drexler, Judith Z.; Fuller, Christopher C.; Schoellhamer, David H.

    2015-01-01

    M, Iacobellis S. 2012. Climate change scenarios for the Sanin a century of climate change. PLoS ONE [Internet]. [citedPanel on Climate Change. 2007. Contribution of working group

  13. Fast Reference-Based MRI

    E-Print Network [OSTI]

    Weizman, Lior; Ben-Basaht, Dafna

    2015-01-01

    In many clinical MRI scenarios, existing imaging information can be used to significantly shorten acquisition time or to improve Signal to Noise Ratio (SNR). In some cases, a previously acquired image can serve as a reference image, that may exhibit similarity to the image being acquired. Examples include similarity between adjacent slices in high resolution MRI, similarity between various contrasts in the same scan and similarity between different scans of the same patient. In this paper we present a general framework for utilizing reference images for fast MRI. We take into account that the reference image may exhibit low similarity with the acquired image and develop an iterative weighted approach for reconstruction, which tunes the weights according to the degree of similarity. Experiments demonstrate the performance of the method in three different clinical MRI scenarios: SNR improvement in high resolution brain MRI, utilizing similarity between T2-weighted and fluid-attenuated inversion recovery (FLAIR)...

  14. Model Discrimination at the LHC: a Case Study

    E-Print Network [OSTI]

    Gregory Hallenbeck; Maxim Perelstein; Christian Spethmann; Julia Thom; Jennifer Vaughan

    2009-03-11

    We investigate the potential of the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC) to discriminate between two theoretical models predicting anomalous events with jets and large missing transverse energy, minimal supersymmetry and Little Higgs with T Parity. We focus on a simple test case scenario, in which the only exotic particles produced at the LHC are heavy color-triplet states (squarks or T-quarks), and the only open decay channel for these particles is into the stable missing-energy particle (neutralino or heavy photon) plus a quark. We find that in this scenario, the angular and momentum distributions of the observed jets are sufficient to discriminate between the two models with a few inverse fb of the LHC data, provided that these distributions for both models and the dominant Standard Model backgrounds can be reliably predicted by Monte Carlo simulations.

  15. Modeling Sensitivities to the 20% Wind Scenario Report with the WinDS Model

    SciTech Connect (OSTI)

    Blair, N.; Hand, M.; Short, W.; Sullivan, P.

    2008-06-01

    In May 2008, DOE published '20% Wind Energy by 2030', a report which describes the costs and benefits of producing 20% of the nation's projected electricity demand in 2030 from wind technology. The total electricity system cost resulting from this scenario was modestly higher than a scenario in which no additional wind was installed after 2006. NREL's Wind Deployment System (WinDS) model was used to support this analysis. With its 358 regions, explicit treatment of transmission expansion, onshore siting considerations, shallow- and deep-water wind resources, 2030 outlook, explicit financing assumptions, endogenous learning, and stochastic treatment of wind resource variability, WinDS is unique in the level of detail it can bring to this analysis. For the 20% Wind Energy by 2030 analysis, the group chose various model structures (such as the ability to wheel power within an interconnect), and the wind industry agreed on a variety of model inputs (such as the cost of transmission or new wind turbines). For this paper, the analysis examined the sensitivity of the results to variations in those input values and model structure choices. These included wind cost and performance improvements over time, seasonal/diurnal wind resource variations, transmission access and costs, siting costs, conventional fuel cost trajectories, and conventional capital costs.

  16. Implementation Scenarios for Electric Vehicle Roadway Wireless Power Transfer; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Meintz, A.; Markel, T.; Burton, E.; Wang, L.; Gonder, J.; Brooker, A.

    2015-06-05

    Analysis has been performed on the Transportation Secure Data Center (TSDC) warehouse of collected GPS second-by-second driving profile data of vehicles in the Atlanta, Chicago, Fresno, Kansas City, Los Angeles, Sacramento, and San Francisco Consolidated Statistical Areas (CSAs) to understand in-motion wireless power transfer introduction scenarios. In this work it has been shown that electrification of 1% of road miles could reduce fuel use by 25% for Hybrid Electric Vehicles (HEVs) in these CSAs. This analysis of strategically located infrastructure offers a promising approach to reduced fuel consumption; however, even the most promising 1% of road miles determined by these seven analysis scenarios still represent an impressive 2,700 miles of roadway to electrify. Therefore to mitigate the infrastructure capital costs, integration of the grid-tied power electronics in the Wireless Power Transfer (WPT) system at the DC-link to photovoltaic and/or battery storage is suggested. The integration of these resources would allow for the hardware to provide additional revenue through grid services at times of low traffic volumes and conversely at time of high traffic volumes these resources could reduce the peak demand that the WPT system would otherwise add to the grid.

  17. Magnetohydrodynamic modes analysis and control of Fusion Advanced Studies Torus high-current scenarios

    SciTech Connect (OSTI)

    Villone, F.; Mastrostefano, S. [Euratom-ENEA-CREATE Ass., DIEI, Univ. di Cassino e Lazio Merid., Cassino (Italy); Calabr, G.; Vlad, G.; Crisanti, F.; Fusco, V. [C. R. Frascati, Euratom-ENEA Ass., Via E. Fermi 45, 00044 Frascati (Italy); Marchiori, G.; Bolzonella, T.; Marrelli, L.; Martin, P. [Cons. RFX, Euratom-ENEA-RFX Ass., Corso Stati Uniti 4, 35127 Padova (Italy); Liu, Y. Q. [Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom); Mantica, P. [IFP-CNR, Euratom-ENEA-CNR Ass. Via Cozzi 53, 20125 Milano (Italy)

    2014-08-15

    One of the main FAST (Fusion Advanced Studies Torus) goals is to have a flexible experiment capable to test tools and scenarios for safe and reliable tokamak operation, in order to support ITER and help the final DEMO design. In particular, in this paper, we focus on operation close to a possible border of stability related to low-q operation. To this purpose, a new FAST scenario has then been designed at I{sub p}?=?10 MA, B{sub T}?=?8.5?T, q{sub 95}???2.3. Transport simulations, carried out by using the code JETTO and the first principle transport model GLF23, indicate that, under these conditions, FAST could achieve an equivalent Q???3.5. FAST will be equipped with a set of internal active coils for feedback control, which will produce magnetic perturbation with toroidal number n?=?1 or n?=?2. Magnetohydrodynamic (MHD) mode analysis and feedback control simulations performed with the codes MARS, MARS-F, CarMa (both assuming the presence of a perfect conductive wall and using the exact 3D resistive wall structure) show the possibility of the FAST conductive structures to stabilize n?=?1 ideal modes. This leaves therefore room for active mitigation of the resistive mode (down to a characteristic time of 1?ms) for safety purposes, i.e., to avoid dangerous MHD-driven plasma disruption, when working close to the machine limits and magnetic and kinetic energy density not far from reactor values.

  18. Dark Matter Decay to a Photon and a Neutrino: the Double Monochromatic Smoking Gun Scenario

    E-Print Network [OSTI]

    Chamae El Aisati; Michael Gustafsson; Thomas Hambye; Tiziana Scarna

    2015-10-16

    In the energy range from few TeV to 25 TeV, upper bounds on the dark matter decay rate into high energy monochromatic neutrinos have recently become comparable to those on monochromatic gamma-ray lines. This implies clear possibilities of a future double "smoking-gun" evidence for the dark matter particle, from the observation of both a gamma and a neutrino line at the same energy. In particular, we show that a scenario where both lines are induced from the same dark matter particle decay leads to correlations that can already be tested. We study this "double monochromatic" scenario by considering the complete list of lowest dimensional effective operators that could induce such a decay. Furthermore, we argue that, on top of lines from decays into two-body final states, three-body final states can also be highly relevant. In addition to producing a distinct hard photon spectrum, three-body final states also produce a line-like feature in the neutrino spectrum that can be searched for by neutrino telescopes.

  19. Dark Matter Decay to a Photon and a Neutrino: the Double Monochromatic Smoking Gun Scenario

    E-Print Network [OSTI]

    Aisati, Chamae El; Hambye, Thomas; Scarna, Tiziana

    2015-01-01

    In the energy range from few TeV to 25 TeV, upper bounds on the dark matter decay rate into high energy monochromatic neutrinos have recently become comparable to those on monochromatic gamma-ray lines. This implies clear possibilities of a future double "smoking-gun" evidence for the dark matter particle, from the observation of both a gamma and a neutrino line at the same energy. In particular, we show that a scenario where both lines are induced from the same dark matter particle decay leads to correlations that can already be tested. We study this "double monochromatic" scenario by considering the complete list of lowest dimensional effective operators that could induce such a decay. Furthermore, we argue that, on top of lines from decays into two-body final states, three-body final states can also be highly relevant. In addition to producing a distinct hard photon spectrum, three-body final states also produce a line-like feature in the neutrino spectrum that can be searched for by neutrino telescopes.

  20. Phenomenology of the minimal inflation scenario: inflationary trajectories and particle production

    E-Print Network [OSTI]

    Luis Alvarez-Gaume; Cesar Gomez; Raul Jimenez

    2012-03-06

    We discuss the phenomenology of the minimal inflation scenario. We concentrate on two aspects: inflationary trajectories and particle production. Our findings can be summarized in two main results: first, that inflationary trayectories that are very flat and provide enough number of e-foldings are natural in the scenario without fine tunning. We present a general formalism to identify attractors in multi-field inflation regardless of trajectories fulfilling the slow-roll conditions. We then explore particle production in the model and show how the inflaton naturally transmutes into a dark matter particle. One interesting feature of our model is that it provides a novel mechanism to generate particles and entropy in the universe: the filling of the Fermi sphere up to a given momentum p_F due to the sea of goldstinos that are an important part of the matter generated after inflation. With this mechanism in hand we predict that the gravitino should have a mass of > 100-1000 TeV. Another interesting feature of our model is that the predicted level of gravity waves is r=0.1 - 0.001, which is in the range of detectability from Planck and upcoming CMB polarization experiments.