National Library of Energy BETA

Sample records for 30-year cost-benefit horizon

  1. Fuel Consumption and Cost Benefits of DOE Vehicle Technologies...

    Office of Environmental Management (EM)

    Consumption and Cost Benefits of DOE Vehicle Technologies Program Fuel Consumption and Cost Benefits of DOE Vehicle Technologies Program 2012 DOE Hydrogen and Fuel Cells Program...

  2. Cost-Benefit Analysis* By Matthew J. Kotchen

    E-Print Network [OSTI]

    Kotchen, Matthew J.

    1 Cost-Benefit Analysis* By Matthew J. Kotchen When economics is normative idea is that scarce resources should be allo- cated to their most valued uses. Cost-benefit analysis, are converted into a common monetary unit, and the cost-benefit criterion is simply a test of whether

  3. Energy savings estimates and cost benefit calculations for high performance relocatable classrooms

    E-Print Network [OSTI]

    Rainer, Leo I.; Hoeschele, Marc A.; Apte, Michael G.; Shendell, Derek G.; Fisk, William J.

    2003-01-01

    Energy Savings Estimates and Cost Benefit Calculations forEnergy Savings Estimates and Cost Benefit Calculations forEnergy Savings Estimates and Cost Benefit Calculations for

  4. Energy savings estimates and cost benefit calculations for high...

    Office of Scientific and Technical Information (OSTI)

    Energy savings estimates and cost benefit calculations for high performance relocatable classrooms Citation Details In-Document Search Title: Energy savings estimates and cost...

  5. The Practice of Cost Benefit Analysis in the Transport Sector...

    Open Energy Info (EERE)

    and greenhouse gas emissions. References Retrieved from "http:en.openei.orgwindex.php?titleThePracticeofCostBenefitAnalysisintheTransportSectoraMexicanPe...

  6. Energy information systems (EIS): Technology costs, benefit, and best practice uses

    E-Print Network [OSTI]

    Granderson, Jessica

    2014-01-01

    systems (EIS): Technology costs, benefit, and best practicesystems (EIS): Technology costs, benefits, and best practicesystems: 1. What are the technology costs of an EIS? 2. What

  7. Efficient Peak Power Estimation using Probabilistic Cost-Benefit Analysis

    E-Print Network [OSTI]

    Mishra, Prabhat

    unreliable and vulnerable to power attacks, whereas pessimistic design can lead to unacceptable de- sign overhead. The power virus problem is defined as finding input patterns that can maximize switching activity power virus generation technique utilizing a probabilistic cost-benefit analysis. To maximize switching

  8. Measuring the Costs & Benefits of Nationwide Geothermal Heat

    E-Print Network [OSTI]

    Measuring the Costs & Benefits of Nationwide Geothermal Heat Pump (GHP) Deployment ­ A Progress to measure the costs and benefits of nationwide geothermal heat pump (GHP) deployment. · First market study to quantify the entire GHP chain ­ Manufacturing ­ Design ­ Installation · GHPsRUS is short for "geothermal

  9. Cost-Benefit Analysis of Plug-In Hybrid-Electric Vehicle Technology (Presentation)

    SciTech Connect (OSTI)

    Pesaran, A.; Markel, T.; Simpson, A.

    2006-10-01

    Presents a cost-benefit of analysis of plug-in hybrid electric vehicle technology, including potential petroleum use reduction.

  10. Understanding the 30-year Barbados desert dust record

    E-Print Network [OSTI]

    Mahowald, Natalie M; Zender, C. S.; Luo, C.; Savoie, D.; Torres, O.; del Corral, J.

    2002-01-01

    UNDERSTANDING THE 30-YEAR BARBADOS DESERT DUST Moulin, C. ,on mineral dust in the Barbados trade winds, Nature, 320,Understanding the 30-year Barbados desert dust record, J.

  11. A Cost-Benefit Analysis of Data Processing Architectures for the Smart Grid

    E-Print Network [OSTI]

    Langendoen, Koen

    A Cost-Benefit Analysis of Data Processing Architectures for the Smart Grid Akshay Uttama Nambi S applications in smart grid. We introduce several key cost indicators to analyze hierarchical data processing- plications Keywords Data Processing, Distributed Information Systems, Smart Grid, Cost-Benefit Analysis 1

  12. Solid waste 30-year volume summary

    SciTech Connect (OSTI)

    Valero, O.J.; Armacost, L.L.; DeForest, T.J.; Templeton, K.J.; Williams, N.C.

    1994-06-01

    A 30-year forecast of the solid waste volumes to be generated or received at the US Department of Energy Hanford Site is described in this report. The volumes described are low-level mixed waste (LLMW) and transuranic/transuranic mixed (TRU/TRUM) waste that will require treatment, storage, and disposal at Hanford`s Solid Waste Operations Complex (SWOC) during the 30-year period from FY 1994 through FY 2023. The data used to complete this document were collected from onsite and offsite waste generators who currently, or are planning to, ship solid wastes to the Hanford Site. An analysis of the data suggests that over 300,000 m{sup 3} of LLMW and TRU/TRUM waste will be managed at Hanford`s SWOC over the next 30 years. An extensive effort was made this year to collect this information. The 1993 solid waste forecast was used as a starting point, which identified approximately 100,000 m{sup 3} of LLMW and TRU/TRUM waste to be sent to the SWOC. After analyzing the forecast waste volume, it was determined that additional waste was expected from the tank waste remediation system (TWRS), onsite decontamination and decommissioning (D&D) activities, and onsite remedial action (RA) activities. Data presented in this report establish a starting point for solid waste management planning. It is recognized that forecast estimates will vary (typically increasing) as facility planning and missions continue to change and become better defined, but the information presented still provides useful insight into Hanford`s future solid waste management requirements.

  13. Energy savings estimates and cost benefit calculations for high performance relocatable classrooms

    E-Print Network [OSTI]

    Rainer, Leo I.; Hoeschele, Marc A.; Apte, Michael G.; Shendell, Derek G.; Fisk, William J.

    2003-01-01

    energy performance and cost models for high performance relocatable classrooms (RCs) across CaliforniaCost Benefit Calculations for High Performance Relocatable Classrooms 6 Acknowledgements This research was sponsored by the California Energy

  14. A cost-benefit approach to youth vocational training schemes in Africa 

    E-Print Network [OSTI]

    Kuanyin, Emmanuel Bol

    1974-01-01

    A COST-BENEFIT APPROACH TO YOUTH VOCATIONAL TRAINING SCHEMES IN AFRICA A Thesis By EMMANUEL BOL KUANY IN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... Oecember 1974 Major Subject: Economic s A COST-BENEFIT APPROACH TO YOUTH VOCATIONAL TRAINING SCHEMES IN AFRICA A Thesis EMMANUEL BOL KUANYIN As Approved to Style and Content by: (Chairman of Committee) (Head of Department) (Member ~ ~ (Member...

  15. 1995 Solid Waste 30-year volume summary

    SciTech Connect (OSTI)

    Valero, O.J. [Westinghouse Hanford Co., Richland, WA (United States); DeForest, T.J.; Templeton, K.J. [Pacific Northwest Lab., Richland, WA (United States)

    1995-06-01

    This document, prepared by Pacific Northwest Laboratory (PNL) under the direction of Westinghouse Hanford Company (WHC), provides a description of the annual low-level mixed waste (LLMW) and transuranic/transuranic mixed solid waste (TRU-TRUM) volumes expected to be managed by Hanford`s Solid Waste Central Waste Complex (CWC) over the next 30 years. The waste generation sources and waste categories are also described. This document is intended to be used as a reference for short- and long-term planning of the Hanford treatment, storage, and disposal (TSD) activities over the next several decades. By estimating the waste volumes that will be generated in the future, facility planners can determine the timing of key waste management activities, evaluate alternative treatment strategies, and plan storage and disposal capacities. In addition, this document can be used by other waste sites and the general public to gain a better understanding of the types and volumes of waste that will be managed at Hanford.

  16. A cost-benefit analysis of rural-urban migration decisions in less developed countries 

    E-Print Network [OSTI]

    Aste-Salazar, Juan Gerardo

    1973-01-01

    the 'predictive power of cost-benefit analysis and will avoid any measure- ment problem. In the case of perfect competition where all goods and services are priced, the results given by the cost-benefit tools are completely reliable. [49]. But under... in Africa. He has concluded that migration is primarily an economic phenomenon where the migrant, knowing his probability of getting a job is low, takes a chance and plays a "game of lottery" pulled by the rural-urban wage differential. The great wage...

  17. A Cost-Benefit Analysis of Indexing Big Data with Map-Reduce

    E-Print Network [OSTI]

    Arampatzis, Avi

    A Cost-Benefit Analysis of Indexing Big Data with Map-Reduce Dimitrios Siafarikas Argyrios@ee.duth.gr Abstract--We reflect upon the challenge a Big Data analyst faces when dealing with the complex problem the system we developed works. Keywords: Information Retrieval, Big Data, Data Mining, Cluster, Inverted

  18. Economics of Online Structural Health Monitoring of Wind Turbines: Cost Benefit Analysis

    E-Print Network [OSTI]

    McCalley, James D.

    ' desire a shift away from carbon intensive electricity generation. Wind power is increasingly becomingEconomics of Online Structural Health Monitoring of Wind Turbines: Cost Benefit Analysis Jeremy Van monitoring (OSHM) and condition-based maintenance (CBM) of wind turbine blades has the potential to reduce O

  19. Using painted turtles (Chrysemys picta) to test the cost benefit model of thermoregulation

    E-Print Network [OSTI]

    Blouin-Demers, Gabriel

    Using painted turtles (Chrysemys picta) to test the cost benefit model of thermoregulation Alanna,297 internal body temperature (Tb) measurements from 18 midland painted turtles (Chrysemys picta marginata (Tset) of painted turtles in a thermal gradient. Tset was 21.3o C to 25.0o C. I used Tb, Te, and Tset

  20. PV MODULE PERFORMANCE AFTER 30 YEARS WITHOUT WASHING Frank Vignola

    E-Print Network [OSTI]

    Oregon, University of

    1 PV MODULE PERFORMANCE AFTER 30 YEARS WITHOUT WASHING Frank Vignola Josh Peterson Rich Kessler of a Solarex 40 watt mono crystalline PV module is examined after 30 years in use without washing. After photovoltaic (PV) modules? As the mod- ules are often on roof tops or situated out of the way, it often takes

  1. For more than 30 years, the National Renewable

    E-Print Network [OSTI]

    For more than 30 years, the National Renewable Energy Laboratory (NREL) has advanced the science and increase the performance and reliability of solar, wind, biomass, and geothermal systems; building

  2. Improved cost-benefit techniques in the US Nuclear Regulatory Commission

    SciTech Connect (OSTI)

    Cronin, F.J.; Nesse, R.J.; Vaeth, M.; Wusterbarth, A.R.; Currie, J.W.

    1983-06-01

    The major objective of this report is to help the US Nuclear Regulatory Commission (NRC) in its regulatory mission, particularly with respect to improving the use of cost-benefit analysis and the economic evaluation of resources within the NRC. The objectives of this effort are: (1) to identify current and future NRC requirements (e.g., licensing) for valuing nonmarket goods; (2) to identify, highlight, and present the relevant efforts of selected federal agencies, some with over two decades of experience in valuing nonmarket goods, in this area; and (3) to review methods for valuing nonmarket impacts and to provide estimats of their magnitudes. Recently proposed legislation may result in a requirement for not only more sophisticated valuation analyses, but more extensive applications of these techniques to issues of concern to the NRC. This paper is intended to provide the NRC with information to more efficiently meet such requirements.

  3. Cost-Benefit Analysis of the Large Hadron Collider to 2025 and beyond

    E-Print Network [OSTI]

    Florio, Massimo; Sirtori, Emanuela

    2015-01-01

    Social cost-benefit analysis (CBA) of projects has been successfully applied in different fields such as transport, energy, health, education, and environment, including climate change. It is often argued that it is impossible to extend the CBA approach to the evaluation of the social impact of research infrastructures, because the final benefit to society of scientific discovery is generally unpredictable. Here, we propose a quantitative approach to this problem, we use it to design an empirically testable CBA model, and we apply it to the the Large Hadron Collider (LHC), the highest-energy accelerator in the world, currently operating at CERN. We show that the evaluation of benefits can be made quantitative by determining their value to users (scientists, early-stage researchers, firms, visitors) and non-users (the general public). Four classes of contributions to users are identified: knowledge output, human capital development, technological spillovers, and cultural effects. Benefits for non-users can be ...

  4. 1995 solid waste 30-year container volume summary

    SciTech Connect (OSTI)

    Templeton, K.J.; DeForest, T.J.; Patridge, M.D. [Pacific Northwest Lab., Richland, WA (United States)

    1995-07-01

    This report describes a 30-year forecast of the solid waste volumes by container category. The volumes described are low-level mixed waste (LLMW) and transuranic/transuranic mixed (TRU-TRUM) waste. These volumes and their associated container categories will be generated or received at the US Department of Energy Hanford Site for storage, treatment, and disposal at Westinghouse Hanford Company`s Solid Waste Operations Complex (SWOC) during a 30-year period from FY 1995 through FY 2024. The data presented in this report establish a baseline for solid waste management both in the present and future. With knowledge of the volumes by container type, decisions on the facility handling and storage requirements can be adequately made. It is recognized that the forecast estimates will vary as facility planning and missions continue to change and become better defined; however, the data presented in this report still provide useful insight into Hanford`s future solid waste management requirements.

  5. Questioning the HIV-AIDS hypothesis: 30 years of dissent 

    E-Print Network [OSTI]

    Goodson, Patricia

    2014-09-23

    PUBLIC HEALTH OPINION ARTICLE published: 23 September 2014 doi: 10.3389/fpubh.2014.00154 Questioning the HIV-AIDS hypothesis: 30 years of dissent Patricia Goodson* Department of Health & Kinesiology, Texas A&M University, College Station, TX, USA... it is important to remember: over 60 conditions can yield a false-positive ELISA) (13, 18). Critics of the orthodox view decry the lack of standardized criteria for a positive result in a WB, across countries, world- wide (19). Bauer (Table 1), in a 2010 arti- cle...

  6. Extensive English Summary CPB Special Publication 57: Wind energy at the North Sea: A social Cost-benefit analysis

    E-Print Network [OSTI]

    1 Extensive English Summary CPB Special Publication 57: Wind energy at the North Sea: A social Cost carried out a social cost-benefit analysis (CBA) for erecting and operating wind farms on the North Sea 2004, in which they requested a breakdown of the costs and benefits of 6,000 MW of offshore wind energy

  7. Costs and benefits of railway urban logistics: a prospective social cost benefit analysis Jesus Gonzalez-Feliu

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Costs and benefits of railway urban logistics: a prospective social cost benefit analysis Jesus Abstract This paper presents a general framework to assess urban rail logistics suitability via a socio. Secondly, we identify and present the main types of costs and benefits or railway urban logistics services

  8. Cost-Benefit Analysis of the Large Hadron Collider to 2025 and beyond

    E-Print Network [OSTI]

    Massimo Florio; Stefano Forte; Emanuela Sirtori

    2015-07-20

    Social cost-benefit analysis (CBA) of projects has been successfully applied in different fields such as transport, energy, health, education, and environment, including climate change. It is often argued that it is impossible to extend the CBA approach to the evaluation of the social impact of research infrastructures, because the final benefit to society of scientific discovery is generally unpredictable. Here, we propose a quantitative approach to this problem, we use it to design an empirically testable CBA model, and we apply it to the the Large Hadron Collider (LHC), the highest-energy accelerator in the world, currently operating at CERN. We show that the evaluation of benefits can be made quantitative by determining their value to users (scientists, early-stage researchers, firms, visitors) and non-users (the general public). Four classes of contributions to users are identified: knowledge output, human capital development, technological spillovers, and cultural effects. Benefits for non-users can be estimated, in analogy to public goods with no practical use (such as environment preservation), using willingness to pay. We determine the probability distribution of cost and benefits for the LHC since 1993 until planned decommissioning in 2025, and we find there is a 92% probability that benefits exceed its costs, with an expected net present value of about 3 billion euro, not including the unpredictable economic value of discovery of any new physics. We argue that the evaluation approach proposed here can be replicated for any large-scale research infrastructure, thus helping the decision-making on competing projects, with a socio-economic appraisal complementary to other evaluation criteria.

  9. HORIZON SENSING

    SciTech Connect (OSTI)

    Larry G. Stolarczyk

    2003-03-18

    With the aid of a DOE grant (No. DE-FC26-01NT41050), Stolar Research Corporation (Stolar) developed the Horizon Sensor (HS) to distinguish between the different layers of a coal seam. Mounted on mining machine cutter drums, HS units can detect or sense the horizon between the coal seam and the roof and floor rock, providing the opportunity to accurately mine the section of the seam most desired. HS also enables accurate cutting of minimum height if that is the operator's objective. Often when cutting is done out-of-seam, the head-positioning function facilitates a fixed mining height to minimize dilution. With this technology, miners can still be at a remote location, yet cut only the clean coal, resulting in a much more efficient overall process. The objectives of this project were to demonstrate the feasibility of horizon sensing on mining machines and demonstrate that Horizon Sensing can allow coal to be cut cleaner and more efficiently. Stolar's primary goal was to develop the Horizon Sensor (HS) into an enabling technology for full or partial automation or ''agile mining''. This technical innovation (R&D 100 Award Winner) is quickly demonstrating improvements in productivity and miner safety at several prominent coal mines in the United States. In addition, the HS system can enable the cutting of cleaner coal. Stolar has driven the HS program on the philosophy that cutting cleaner coal means burning cleaner coal. The sensor, located inches from the cutting bits, is based upon the physics principles of a Resonant Microstrip Patch Antenna (RMPA). When it is in proximity of the rock-coal interface, the RMPA impedance varies depending on the thickness of uncut coal. The impedance is measured by the computer-controlled electronics and then sent by radio waves to the mining machine. The worker at the machine can read the data via a Graphical User Interface, displaying a color-coded image of the coal being cut, and direct the machine appropriately. The Horizon Sensor program began development in 1998 and experienced three major design phases. The final version, termed HS-3, was commissioned in 2000 with the assistance of the DOE-Mining Industry of the Future program, commercialized in 2002, and has been used 14 times in 12 different mines within the United States. The Horizon Sensor has applications in both underground and surface mining operations. This technology is primarily used in the coal industry, but is also used to mine trona and potash. All horizon sensor components have Mine Safety and Health Administration (MSHA) (United States) and IEC (International) certification. Horizon Sensing saves energy by maximizing cutting efficiency, cutting only desired material. This desired material is cleaner fuel, therefore reducing pollutants to the atmosphere when burned and burning more efficiently. Extracting only desired material increases productivity by reducing or eliminating the cleaning step after extraction. Additionally, this technology allows for deeper mining, resulting in more material gained from one location. The remote sensing tool allows workers to operate the machinery away from the hazards of cutting coal, including noise, breathing dust and gases, and coal and rock splintering and outbursts. The HS program has primarily revolved around the development of the technology. However, the end goal of the program has always been the commercialization of the technology and only within the last 2 years of the program has this goal been realized. Real-time horizon sensing on mining machines is becoming an industry tool. Detailed monitoring of system function, user experience, and mining benefits is ongoing.

  10. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    SciTech Connect (OSTI)

    Bolinger, Mark

    2014-04-09

    This report compares the relative costs, benefits, and implications of capturing the value of renewable energy tax benefits in these three different ways – applying them against outside income , carrying them forward in time until they can be fully absorbed internally, or monetizing them through third-party tax equity investors – to see which method is most competitive under various scenarios. It finds that under current law and late-2013 market conditions, monetization makes sense for all but the most tax-efficient project sponsors. In other words, for most project sponsors, bringing in third-party tax equity currently provides net benefits to a project.

  11. Use of Residential Smart Appliances for Peak-Load Shifting and Spinning Reserves Cost/Benefit Analysis

    SciTech Connect (OSTI)

    Sastry, Chellury; Pratt, Robert G.; Srivastava, Viraj; Li, Shun

    2010-12-01

    In this report, we present the results of an analytical cost/benefit study of residential smart appliances from a utility/grid perspective in support of a joint stakeholder petition to the ENERGY STAR program within the Environmental Protection Agency (EPA) and Department of Energy (DOE). The goal of the petition is in part to provide appliance manufacturers incentives to hasten the production of smart appliances. The underlying hypothesis is that smart appliances can play a critical role in addressing some of the societal challenges, such as anthropogenic global warming, associated with increased electricity demand, and facilitate increased penetration of renewable sources of power. The appliances we consider include refrigerator/freezers, clothes washers, clothes dryers, room air-conditioners, and dishwashers. The petition requests the recognition that providing an appliance with smart grid capability, i.e., products that meet the definition of a smart appliance, is at least equivalent to a corresponding five percent in operational machine efficiencies. It is then expected that given sufficient incentives and value propositions, and suitable automation capabilities built into smart appliances, residential consumers will be adopting these smart appliances and will be willing participants in addressing the aforementioned societal challenges by more effectively managing their home electricity consumption. The analytical model we utilize in our cost/benefit analysis consists of a set of user-definable assumptions such as the definition of on-peak (hours of day, days of week, months of year), the expected percentage of normal consumer electricity consumption (also referred to as appliance loads) that can shifted from peak hours to off-peak hours, the average power rating of each appliance, etc. Based on these assumptions, we then formulate what the wholesale grid operating-cost savings, or benefits, would be if the smart capabilities of appliances were invoked, and some percentage of appliance loads were shifted away from peak hours to run during off-peak hours, and appliance loads served power-system balancing needs such as spinning reserves that would otherwise have to be provided by generators. The rationale is that appliance loads can be curtailed for about ten minutes or less in response to a grid contingency without any diminution in the quality of service to the consumer. We then estimate the wholesale grid operating-cost savings based on historical wholesale-market clearing prices (location marginal and spinning reserve) from major wholesale power markets in the United States. The savings derived from the smart grid capabilities of an appliance are then compared to the savings derived from a five percent increase in traditional operational machine efficiencies, referred to as cost in this report, to determine whether the savings in grid operating costs (benefits) are at least as high as or higher than the operational machine efficiency credit (cost).

  12. Physical observability of horizons

    E-Print Network [OSTI]

    Matt Visser

    2014-11-25

    Event horizons are (generically) not physically observable. In contrast, apparent horizons (and the closely related trapping horizons) are generically physically observable --- in the sense that they can be detected by observers working in finite-size regions of spacetime. Consequently event horizons are inappropriate tools for defining astrophysical black holes, or indeed for defining any notion of evolving}black hole, (evolving either due to accretion or Hawking radiation). The only situation in which an event horizon becomes physically observable is for the very highly idealized stationary or static black holes, when the event horizon is a Killing horizon which is degenerate with the apparent and trapping horizons; and then it is the physical observability of the apparent/trapping horizons that is fundamental --- the event horizon merely comes along for the ride.

  13. Physical observability of horizons

    E-Print Network [OSTI]

    Visser, Matt

    2014-01-01

    Event horizons are (generically) not physically observable. In contrast, apparent horizons (and the closely related trapping horizons) are generically physically observable --- in the sense that they can be detected by observers working in finite-size regions of spacetime. Consequently event horizons are inappropriate tools for defining astrophysical black holes, or indeed for defining any notion of evolving}black hole, (evolving either due to accretion or Hawking radiation). The only situation in which an event horizon becomes physically observable is for the very highly idealized stationary or static black holes, when the event horizon is a Killing horizon which is degenerate with the apparent and trapping horizons; and then it is the physical observability of the apparent/trapping horizons that is fundamental --- the event horizon merely comes along for the ride.

  14. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report compares the costs, benefits, and implications of capturing the value of renewable energy tax incentives in three different ways – applying them against outside income, carrying them forward in time until they can be absorbed internally, or monetizing them through third-party tax equity investors – to see which method is most competitive under various scenarios. It finds that under late-2013 market conditions, monetization makes sense for all but the most tax-efficient project sponsors. Under a variety of plausible future policy scenarios relevant to wind and solar projects, however, the benefit of monetization no longer outweighs the high cost of tax equity, and it makes more sense for sponsors – even those without tax appetite – to use tax benefits internally rather than to monetize them. These findings have implications for how wind and solar projects are likely to be financed in the future, which, in turn, influences their LCOE. For example, under these scenarios, many wind and solar projects would likely forego tax equity in favor of cheaper sources of capital. This shift to lower-cost capital would, in turn, partially mitigate any negative impact on LCOE resulting from the policy change itself (e.g., in the case of tax credit expiration).

  15. Modeling of GE Appliances: Cost Benefit Study of Smart Appliances in Wholesale Energy, Frequency Regulation, and Spinning Reserve Markets

    SciTech Connect (OSTI)

    Fuller, Jason C.; Parker, Graham B.

    2012-12-31

    This report is the second in a series of three reports describing the potential of GE’s DR-enabled appliances to provide benefits to the utility grid. The first report described the modeling methodology used to represent the GE appliances in the GridLAB-D simulation environment and the estimated potential for peak demand reduction at various deployment levels. The third report will explore the technical capability of aggregated group actions to positively impact grid stability, including frequency and voltage regulation and spinning reserves, and the impacts on distribution feeder voltage regulation, including mitigation of fluctuations caused by high penetration of photovoltaic distributed generation. In this report, a series of analytical methods were presented to estimate the potential cost benefit of smart appliances while utilizing demand response. Previous work estimated the potential technical benefit (i.e., peak reduction) of smart appliances, while this report focuses on the monetary value of that participation. The effects on wholesale energy cost and possible additional revenue available by participating in frequency regulation and spinning reserve markets were explored.

  16. Following more than 30 years of seismic and volcanic quiescence, the Canary Islands

    E-Print Network [OSTI]

    Sleeman, Reinoud

    Following more than 30 years of seismic and volcanic quiescence, the Canary Islands region located History Several eruptions have taken place in the Canary Islands in the last 500 years, all of them, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION PAGES 61,65 Monitoring the Reawakening of Canary Islands'Teide Volcano

  17. Ag land preservation has reached maturity. Just over 30 years ago,

    E-Print Network [OSTI]

    Handy, Susan L.

    cite the importance of preserving farmland as a long-term source of food, ill many metropolitanAg land preservation has reached maturity. #12;Just over 30 years ago, the first public purchase, on the eastern end of Long Island. Since then more than 8,000 acres of the county's farmland have been preserved

  18. Horizon 2020 JEUPISTE Seminar

    E-Print Network [OSTI]

    Banbara, Mutsunori

    2020 Horizon 2020 FP7 "Critical Raw Materials Innovation Network" /Date: 2014 5 29 13301930 1300 and Nanotechnology Development Division, Research Promotion Bureau, MEXT 15:50 Horizon2020 Critical Raw Materials Innovation Network Lecture by Dr Catherine Joce, Project Manager of Critical Raw Materials Innovation

  19. Examining the effectiveness of municipal solid waste management systems: An integrated cost-benefit analysis perspective with a financial cost modeling in Taiwan

    SciTech Connect (OSTI)

    Weng, Yu-Chi; Fujiwara, Takeshi

    2011-06-15

    In order to develop a sound material-cycle society, cost-effective municipal solid waste (MSW) management systems are required for the municipalities in the context of the integrated accounting system for MSW management. Firstly, this paper attempts to establish an integrated cost-benefit analysis (CBA) framework for evaluating the effectiveness of MSW management systems. In this paper, detailed cost/benefit items due to waste problems are particularly clarified. The stakeholders of MSW management systems, including the decision-makers of the municipalities and the citizens, are expected to reconsider the waste problems in depth and thus take wise actions with the aid of the proposed CBA framework. Secondly, focusing on the financial cost, this study develops a generalized methodology to evaluate the financial cost-effectiveness of MSW management systems, simultaneously considering the treatment technological levels and policy effects. The impacts of the influencing factors on the annual total and average financial MSW operation and maintenance (O and M) costs are analyzed in the Taiwanese case study with a demonstrative short-term future projection of the financial costs under scenario analysis. The established methodology would contribute to the evaluation of the current policy measures and to the modification of the policy design for the municipalities.

  20. Static M-horizons

    E-Print Network [OSTI]

    J. Gutowski; G. Papadopoulos

    2011-07-11

    We determine the geometry of all static black hole horizons of M-theory preserving at least one supersymmetry. We demonstrate that all such horizons are either warped products R^{1,1} *_w S or AdS_2 *_w S, where S admits an appropriate Spin(7) or SU(4) structure respectively; and we derive the conditions imposed by supersymmetry on these structures. We show that for electric static horizons with Spin(7) structure, the near horizon geometry is a product R^{1,1} * S, where S is a compact Spin(7) holonomy manifold. For electric static solutions with SU(4) structure, we show that the horizon section S is a circle fibration over an 8-dimensional Kahler manifold which satisfies an additional condition involving the Ricci scalar and the length of the Ricci tensor. Solutions include AdS_2 * S^3 * CY_6 as well as many others constructed from taking the 8-dimensional Kahler manifold to be a product of Kahler-Einstein and Calabi-Yau spaces.

  1. From Energy Audits to Home Performance: 30 Years of Articles in Home Energy Magazine

    SciTech Connect (OSTI)

    Meier, Alan

    2014-08-11

    Home Energy Magazine has been publishing articles about residential energy efficiency for 30 years. Its goal has been to disseminate technically reliable and neutral information to the practitioners, that is, professionals in the business of home energy efficiency. The articles, editorials, letters, and advertisements are a kind of window on the evolution of energy conservation technologies, policies, and organizations. Initially, the focus was on audits and simple retrofits, such as weatherstripping and insulation. Instrumentation was sparse sometimes limited to a ruler to measure depth of attic insulation and a blower door was exotic. CFLs were heavy, awkward bulbs which might, or might not, fit in a fixture. Saving air conditioning energy was not a priority. Solar energy was only for the most adventurous. Thirty years on, the technologies and business have moved beyond just insulating attics to the larger challenge of delivering home performance and achieving zero net energy. This shift reflects the success in reducing space heating energy and the need to create a profitable industry by providing more services. The leading edge of the residential energy services market is becoming much more sophisticated, offering both efficiency and solar systems. The challenge is to continue providing relevant and reliable information in a transformed industry and a revolutionized media landscape.

  2. Restoration and repair of 30-year old cooling towers at the Paducah Gaseous Diffusion Plant, Phase I. Draft 1

    SciTech Connect (OSTI)

    Shelton, M.F.

    1985-01-01

    Early in 1980, a comprehensive reliability study was made to ascertain the ability of the present 30-year old recirculating water system to meet the anticipated load demand through the year 2000. The findings and recommendations of this study were used as a guide to schedule uprating and repairs. This paper deals with the underground distribution system and cooling tower repairs.

  3. Deepwater Horizon Natural Resource Damage Assessment Deepwater Horizon Trustees Announce Agreement in Principle for

    E-Print Network [OSTI]

    ) ------- The Deepwater Horizon oil spill Natural Resource Damage Assessment Trustees (Trustees) today announced another Horizon oil spill Natural Resource Damage Assessment and restoration will continue until the publicDeepwater Horizon Natural Resource Damage Assessment Deepwater Horizon Trustees Announce Agreement

  4. HORIZON SENSING (PROPOSAL No.51)

    SciTech Connect (OSTI)

    Larry G. Stolarczyk, Sc.D.

    2001-10-01

    Project objectives are to demonstrate the feasibility of real-time stress measurement, bit loading, and horizon sensing on a longwall shearer, boring machine, continuous miner, and loading bucket.

  5. Deepwater Horizon Situation Report #5

    SciTech Connect (OSTI)

    2010-06-10

    At approximately 11:00 pm EDT April 20, 2010 an explosion occurred aboard the Deepwater Horizon mobile offshore drilling unit (MODU) located 52 miles Southeast of Venice, LA and 130 miles southeast of New Orleans, LA. The MODU was drilling an exploratory well and was not producing oil at the time of the incident. The Deepwater Horizon MODU sank 1,500 feet northwest of the well site. Detailed information on response and recovery operations can be found at: http://www.deepwaterhorizonresponse.com/go/site/2931/

  6. Surface gravities for non-Killing horizons

    E-Print Network [OSTI]

    Cropp, Bethan; Visser, Matt

    2013-01-01

    There are many logically and computationally distinct characterizations of the surface gravity of a horizon, just as there are many logically rather distinct notions of horizon. Fortunately, in standard general relativity, for stationary horizons, most of these characterizations are degenerate. However, in modified gravity, or in analogue spacetimes, horizons may be non-Killing or even non-null, and hence these degeneracies can be lifted. We present a brief overview of the key issues, specifically focusing on horizons in analogue spacetimes and universal horizons in modified gravity.

  7. Jean Paul Bonnet HORIZON 2020

    E-Print Network [OSTI]

    Bordenave, Charles

    Jean Paul Bonnet PCN CNRS HORIZON 2020 Secure, Clean and Efficient Energy THE EU FRAMEWORK,6 billion #12;Secure, Clean and efficient Energy Work Programme 2014-2015 Energy Challenge - main challenges efficiency in industry, decrease energy costs Building a European Research Area in the field of energy

  8. NIF featured on BBC "Horizon"

    SciTech Connect (OSTI)

    Brian Cox

    2010-01-12

    The National Ignition Facility, the world's largest laser system, located at Lawrence Livermore National Laboratory, was featured in the BBC broadcast "Horizon" hosted by physicist Brian Cox. Here is the NIF portion of the program, which was entitled "Can We Make A Star On Earth?" This video is used with the express permission of the BBC.

  9. NIF featured on BBC "Horizon"

    ScienceCinema (OSTI)

    Brian Cox

    2010-09-01

    The National Ignition Facility, the world's largest laser system, located at Lawrence Livermore National Laboratory, was featured in the BBC broadcast "Horizon" hosted by physicist Brian Cox. Here is the NIF portion of the program, which was entitled "Can We Make A Star On Earth?" This video is used with the express permission of the BBC.

  10. The Path to Disaster The Deepwater Horizon

    E-Print Network [OSTI]

    Pym, David J.

    was not disconnected · The escaping gas ignited · 11 dead · The drilling rig Deepwater Horizon sank after 2 days #1221/08/2013 1 The Path to Disaster The Deepwater Horizon BP's disaster in the Gulf of Mexico Industrial Psychology Research Centre 14th August, 2013 Transocean Deepwater Horizon #12;21/08/2013 2

  11. Emergent Horizons in the Laboratory

    E-Print Network [OSTI]

    Ralf Schützhold

    2010-04-15

    The concept of a horizon known from general relativity describes the loss of causal connection and can be applied to non-gravitational scenarios such as out-of-equilibrium condensed-matter systems in the laboratory. This analogy facilitates the identification and theoretical study (e.g., regarding the trans-Planckian problem) and possibly the experimental verification of "exotic" effects known from gravity and cosmology, such as Hawking radiation. Furthermore, it yields a unified description and better understanding of non-equilibrium phenomena in condensed matter systems and their universal features. By means of several examples including general fluid flows, expanding Bose-Einstein condensates, and dynamical quantum phase transitions, the concepts of event, particle, and apparent horizons will be discussed together with the resulting quantum effects.

  12. Horizons cannot save the Landscape

    E-Print Network [OSTI]

    Iosif Bena; Alex Buchel; Oscar J. C. Dias

    2012-12-20

    Solutions with anti-D3 branes in a Klebanov-Strassler geometry with positive charge dissolved in fluxes have a certain singularity corresponding to a diverging energy density of the RR and NS-NS three-form fluxes. There are many hopes and arguments for and against this singularity, and we attempt to settle the issue by examining whether this singularity can be cloaked by a regular event horizon. This is equivalent to the existence of asymptotically Klebanov-Tseytlin or Klebanov-Strassler black holes whose charge measured at the horizon has the opposite sign to the asymptotic charge. We find that no such KT solution exists. Furthermore, for a large class of KS black holes we considered, the charge at the horizon must also have the same sign as the asymptotic charge, and is completely determined by the temperature, the number of fractional branes and the gaugino masses of the dual gauge theory. Our result suggests that antibrane singularities in backgrounds with charge in the fluxes are unphysical, which in turn raises the question as to whether antibranes can be used to uplift AdS vacua to deSitter ones. Our results also point out to a possible instability mechanism for the antibranes.

  13. Area products for black hole horizons

    E-Print Network [OSTI]

    Visser, Matt

    2013-01-01

    Area products for multi-horizon black holes often have intriguing properties, and are often independent of the mass of the black hole (depending only on various charges, angular momenta, and moduli). Such products are often formulated in terms of the areas of inner (Cauchy) horizons and event horizons, and often include the effects of unphysical "virtual'" horizons. For the Schwarzschild-de Sitter [Kottler] black hole in (3+1) dimensions it is shown by explicit exact calculation that the product of event horizon area and cosmological horizon area is not mass independent. (Including the effect of the third "virtual" horizon does not improve the situation.) Similarly, in the Reissner-Nordstrom-anti-de Sitter black hole in (3+1) dimensions the product of inner (Cauchy) horizon area and event horizon area is calculated (perturbatively), and is shown to be not mass independent. That is, the mass-independence of the product of physical horizon areas is not generic. In the generic situation, whenever the quasi-local...

  14. Regulation, Unemployment, and Cost-Benefit Analysis

    E-Print Network [OSTI]

    Posner, Eric; Masur, Jonathan S.

    2011-01-01

    and Eric A. Posner, Regulation, Unemployment, and Cost-effects of environmental regulations for other industries.Paper Collection.   Regulation, Unemployment, and Cost-

  15. Regulation, Unemployment, and Cost-Benefit Analysis

    E-Print Network [OSTI]

    Posner, Eric; Masur, Jonathan S.

    2011-01-01

    Cement Manufacturing Industry and Standards of Performanceand development industries Emissions standards EPA 74 Fed.manufacturing industry Emissions standards for boilers and

  16. Optical geometry across the horizon

    E-Print Network [OSTI]

    Rickard Jonsson

    2007-08-19

    In a companion paper (Jonsson and Westman, Class. Quantum Grav. 23 (2006) 61), a generalization of optical geometry, assuming a non-shearing reference congruence, is discussed. Here we illustrate that this formalism can be applied to a finite four-volume of any spherically symmetric spacetime. In particular we apply the formalism, using a non-static reference congruence, to do optical geometry across the horizon of a static black hole. While the resulting geometry in principle is time dependent, we can choose the reference congruence in such a manner that an embedding of the geometry always looks the same. Relative to the embedded geometry the reference points are then moving. We discuss the motion of photons, inertial forces and gyroscope precession in this framework.

  17. Two physical characteristics of numerical apparent horizons

    E-Print Network [OSTI]

    Ivan Booth

    2007-12-20

    This article translates some recent results on quasilocal horizons into the language of $(3+1)$ general relativity so as to make them more useful to numerical relativists. In particular quantities are described which characterize how quickly an apparent horizon is evolving and how close it is to either equilibrium or extremality.

  18. An oblique membrane paradigm for cosmological horizon

    E-Print Network [OSTI]

    Tower Wang

    2014-11-24

    The membrane paradigm is a formalism for studying the event horizon of black holes. After analyzing it with some technical details and realizing it in the Reissner-Nordstrom black hole, we extend the paradigm to cosmological horizons. A standard membrane paradigm is established for the pure de Sitter horizon, and an oblique membrane paradigm is proposed for the trapping horizon of the Friedmann-Lemaitre-Robertson-Walker universe. In the latter case, the cosmological stretched horizon is oblique, thus the running of renormalization parameter is nonzero in the timelike direction and gives a correction to the membrane pressure. In this paradigm, the cosmological equations come from continuity equations of the membrane fluid and the bulk fluid respectively.

  19. A study of different horizons in inhomogeneous LTB cosmological model

    E-Print Network [OSTI]

    Subenoy Chakraborty; Subhajit Saha

    2015-03-04

    This work deals with a detailed study of the dynamics of the apparent, event and particle horizons in the background of the inhomogeneous LTB spacetime. The comparative study among these horizons shows a distinct character for apparent horizon compared to the other horizons. The apparent horizon will be a trapping horizon if its acceleration is positive. The Kodama vector is also defined and its causal character is found to be similar to that in the FRW model.

  20. ORISE: White paper analyzes Deepwater Horizon event for improving...

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

    Horizon response, identifies approaches for radiological or nuclear emergency planning The 2010 Deepwater Horizon oil spill shares many of the same challenges associated...

  1. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    . Foster is a new Associate ProfessorinVirginiaTechwww.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Smart Materials Based on Cellulose Nanocrystals microelectrodes. Herein, the fabrication of a new generation of stimuli-responsive, mechanically adaptive

  2. THE EVENT HORIZON OF M87

    E-Print Network [OSTI]

    Broderick, Avery E.

    The 6 × 10[superscript 9] M[subscript ?] supermassive black hole at the center of the giant elliptical galaxy M87 powers a relativistic jet. Observations at millimeter wavelengths with the Event Horizon Telescope have ...

  3. A PLAN FOR A NEW HORIZON

    E-Print Network [OSTI]

    A PLAN FOR A NEW HORIZON ENVISIONING VIRGINIA TECH 2012-2018 STRATEGIC PLAN #12;Envisioning VirginiaTech 2012-2018 II Contents A PLAN FOR A NEW HORIZON E n v i s i o n i n g V i r g i n i a T e c h 2 Inspiring creativity, curiosity, and critical thinking 12 A new vision for undergraduate general education

  4. Phantom Energy and the Cosmic Horizon: Rh is still not a horizon!

    E-Print Network [OSTI]

    Geraint F. Lewis

    2013-01-02

    There has been a recent spate of papers on the Cosmic Horizon, an apparently fundamental, although unrecognised, property of the universe. The misunderstanding of this horizon, it is claimed, demonstrates that our determination of the cosmological makeup of the universe is incorrect, although several papers have pointed out key flaws in these arguments. Here, we identify additional flaws in the most recent claims of the properties of the Cosmic Horizon in the presence of phantom energy, simply demonstrating that it does not act as a horizon, and that its limiting of our view of the universe is a trivial statement.

  5. Fusion of Edge-less and Edge-based Approaches for Horizon Line Detection

    E-Print Network [OSTI]

    Bebis, George

    the horizon line. In the edge-less approach, classification is used to obtain a confidence of horizon-ness. Moreover, we propose fusing the information about the horizon-ness and edge-ness of each pixel. Our

  6. Evidence for the Black Hole Event Horizon

    E-Print Network [OSTI]

    Ramesh Narayan; Jeremy S. Heyl

    2002-04-26

    Roughly a dozen X-ray binaries are presently known in which the compact accreting primary stars are too massive to be neutron stars. These primaries are identified as black holes, though there is as yet no definite proof that any of the candidate black holes actually possesses an event horizon. We discuss how Type I X-ray bursts may be used to verify the presence of the event horizon in these objects. Type I bursts are caused by thermonuclear explosions when gas accretes onto a compact star. The bursts are commonly seen in many neutron star X-ray binaries, but they have never been seen in any black hole X-ray binary. Our model calculations indicate that black hole candidates ought to burst frequently if they have surfaces. Based on this, we argue that the lack of bursts constitutes strong evidence for the presence of event horizons in these objects.

  7. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    , it is clear that scales of the order of the total wind farm size are those, which are critical in determiningwww.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Wind Plant Aerodynamics- A Spectral Analysis are constructed. Thus, from these modal expansions it is established that low order modes have large contributions

  8. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    www.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Towards Ubiquitous Cost- competitive Solar Power of energy in one year. Tapping into this enormous potential requires reducing the cost of solar collection% to make solar energy cost competitive with other forms of energy, without subsidies, by the end

  9. NASA's New Horizons Mission Dr. Henry Throop

    E-Print Network [OSTI]

    Throop, Henry

    Battery Camera #12;LORRI (Visible Imager) PEPSSI SWAP (Solar Wind) RALPH (Visible/IR Imager/ Spectrometer't land, and it never comes back to Earth. New Horizons Spacecraft #12;Radio Battery Camera #12;Radio images. Refine radii and orbits. Search for rings and satellites. Search for clouds and hazes. !Ralph

  10. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    www.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Ion Mediated "Polymerization" of Nanoparticles at the University of Nebraska-Lincoln. Prior to moving to the Midwest, he spent four years at Virginia Tech the University of Massachusetts, Amherst and a B. Tech in Chemical Engineering from the Indian Institute

  11. New Horizons for Deep Subsurface Microbiology

    E-Print Network [OSTI]

    Onstott, Tullis

    life cannot exist. · Experiments being designed for the Deep Un- derground Science and EngineeringNew Horizons for Deep Subsurface Microbiology Subsurface microorganisms may grow slowly 200-m-deep wells along with procedures to monitor for drilling-related contaminants, uncovered

  12. The Wiener Disorder Problem with Finite Horizon

    E-Print Network [OSTI]

    Peskir, Goran

    of earthquakes or tsunamis; seismic signal processing; the appearance of a shock wave front; the studyThe Wiener Disorder Problem with Finite Horizon P. V. Gapeev and G. Peskir # Stochastic Process) time of 'disorder' when the drift of an observed Wiener process changes from one value to another

  13. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    ) but will largely ignore the false alarms about genetically modified foods ("frankenfoods"), thimerosal in vaccineswww.ictas.vt.edu NEW HORIZONS ICTAS SEMINAR SERIES Nanotechnology and Food Safety "Pigs oink, dogsYoung, is likely very prescient when it comes to the subject of nanotechnology and the food supply. Although FDA

  14. Fiber-optical analogue of the event horizon: Appendices

    E-Print Network [OSTI]

    Thomas G. Philbin; Chris Kuklewicz; Scott Robertson; Stephen Hill; Friedrich Konig; Ulf Leonhardt

    2007-12-13

    We explain the theory behind our fiber-optical analogue of the event horizon and present the experiment in detail.

  15. Deepwater Horizon Study Group 3 Environmental Report January 2011

    E-Print Network [OSTI]

    Silver, Whendee

    assessment of the Deepwater Horizon oil spill, as well as summarize the lessons learned from the spillDeepwater Horizon Study Group 3 Environmental Report ­ January 2011 1 The Macondo Blowout. #12;Deepwater Horizon Study Group The Macondo Blowout Environmental Report 2 1 Looking Back

  16. Thorotrast and in vivo thorium dioxide: numerical simulation of 30 years of alpha radiation absorption by the tissues near a large compact source

    E-Print Network [OSTI]

    Bianconi, Andrea

    2014-01-01

    Background: The epidemiology of the slightly radioactive contrast agent named Thorotrast presents a very long latency period between the injection and the development of the related pathologies. It is an example of the more general problem posed by a radioactive internal contaminant whose effects are not noteworthy in the short term but become dramatic in the long period. A point that is still to be explored is fluctuations (in space and time) in the localized absorption of radiation by the tissues. Methods: A Monte Carlo simulation code has been developed to study over a 30 year period the daily absorption of alpha radiation by micrometer sized portions of tissue placed at a distance of 0-100 micrometers from a model source, that approximates a compact thorium dioxide source in liver or spleen whose size is larger or equal to 20 micrometers. The biological depletion of the daughter nuclei of the thorium series is taken into account. The initial condition assumes chemically purified natural thorium. Results: ...

  17. Evidence for the Black Hole Event Horizon

    E-Print Network [OSTI]

    Ramesh Narayan

    2003-10-23

    Astronomers have discovered many candidate black holes in X-ray binaries and in the nuclei of galaxies. The candidate objects are too massive to be neutron stars, and for this reason they are considered to be black holes. While the evidence based on mass is certainly strong, there is no proof yet that any of the objects possesses the defining characteristic of a black hole, namely an event horizon. Type I X-ray bursts, which are the result of thermonuclear explosions when gas accretes onto the surface of a compact star, may provide important evidence in this regard. Type I bursts are commonly observed in accreting neutron stars, which have surfaces, but have never been seen in accreting black hole candidates. It is argued that the lack of bursts in black hole candidates is compelling evidence that these objects do not have surfaces. The objects must therefore possess event horizons.

  18. Near-horizon Extreme Kerr Magnetospheres

    E-Print Network [OSTI]

    Compère, G

    2015-01-01

    Analytical solutions to force-free electrodynamics around black holes are fundamental to build simple models of accretion disk and jet dynamics. We present a (non-exhaustive) classification of complex highest weight solutions to the force-free equations in the near-horizon region of the extremal Kerr black hole. Bounds on the weights of solutions are derived from the finiteness of energy and the existence of a variational principle. Two classes of real magnetically dominated solutions, respectively axisymmetric and non-axisymmetric, are described which admit finite energy with respect to the asymptotically flat observer. Subtleties related to the velocity of light surface in the near-horizon region are discussed.

  19. Fiber-optical analogue of the event horizon

    E-Print Network [OSTI]

    Thomas G. Philbin; Chris Kuklewicz; Scott Robertson; Stephen Hill; Friedrich Konig; Ulf Leonhardt

    2008-02-13

    The physics at the event horizon resembles the behavior of waves in moving media. Horizons are formed where the local speed of the medium exceeds the wave velocity. We use ultrashort pulses in microstructured optical fibers to demonstrate the formation of an artificial event horizon in optics. We observed a classical optical effect, the blue-shifting of light at a white-hole horizon. We also show by theoretical calculations that such a system is capable of probing the quantum effects of horizons, in particular Hawking radiation.

  20. The Event Horizon of M87

    E-Print Network [OSTI]

    Avery E. Broderick; Ramesh Narayan; John Kormendy; Eric S. Perlman; Marcia J. Rieke; Sheperd S. Doeleman

    2015-04-05

    The 6 billion solar mass supermassive black hole at the center of the giant elliptical galaxy M87 powers a relativistic jet. Observations at millimeter wavelengths with the Event Horizon Telescope have localized the emission from the base of this jet to angular scales comparable to the putative black hole horizon. The jet might be powered directly by an accretion disk or by electromagnetic extraction of the rotational energy of the black hole. However, even the latter mechanism requires a confining thick accretion disk to maintain the required magnetic flux near the black hole. Therefore, regardless of the jet mechanism, the observed jet power in M87 implies a certain minimum mass accretion rate. If the central compact object in M87 were not a black hole but had a surface, this accretion would result in considerable thermal near-infrared and optical emission from the surface. Current flux limits on the nucleus of M87 strongly constrain any such surface emission. This rules out the presence of a surface and thereby provides indirect evidence for an event horizon.

  1. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    SciTech Connect (OSTI)

    Hong, Tianzhen; Chang, Wen-Kuei; Lin, Hung-Wen

    2013-05-01

    Buildings consume more than one third of the world?s total primary energy. Weather plays a unique and significant role as it directly affects the thermal loads and thus energy performance of buildings. The traditional simulated energy performance using Typical Meteorological Year (TMY) weather data represents the building performance for a typical year, but not necessarily the average or typical long-term performance as buildings with different energy systems and designs respond differently to weather changes. Furthermore, the single-year TMY simulations do not provide a range of results that capture yearly variations due to changing weather, which is important for building energy management, and for performing risk assessments of energy efficiency investments. This paper employs large-scale building simulation (a total of 3162 runs) to study the weather impact on peak electricity demand and energy use with the 30-year (1980 to 2009) Actual Meteorological Year (AMY) weather data for three types of office buildings at two design efficiency levels, across all 17 ASHRAE climate zones. The simulated results using the AMY data are compared to those from the TMY3 data to determine and analyze the differences. Besides further demonstration, as done by other studies, that actual weather has a significant impact on both the peak electricity demand and energy use of buildings, the main findings from the current study include: 1) annual weather variation has a greater impact on the peak electricity demand than it does on energy use in buildings; 2) the simulated energy use using the TMY3 weather data is not necessarily representative of the average energy use over a long period, and the TMY3 results can be significantly higher or lower than those from the AMY data; 3) the weather impact is greater for buildings in colder climates than warmer climates; 4) the weather impact on the medium-sized office building was the greatest, followed by the large office and then the small office; and 5) simulated energy savings and peak demand reduction by energy conservation measures using the TMY3 weather data can be significantly underestimated or overestimated. It is crucial to run multi-decade simulations with AMY weather data to fully assess the impact of weather on the long-term performance of buildings, and to evaluate the energy savings potential of energy conservation measures for new and existing buildings from a life cycle perspective.

  2. An American company thinks it can have a commercial reactor ready and working within a decade ONE of the clichs of nuclear-power research is that a commercial fusion reactor is only 30 years away, and always1

    E-Print Network [OSTI]

    South Bohemia, University of

    of the clichés of nuclear-power research is that a commercial fusion reactor is only 30 years away, and always1An American company thinks it can have a commercial reactor ready and working within a decade ONE that Lockheed Martin,2 a big American engineering and defence company, has a new design for a fusion reactor

  3. 02/09/2009 16:58Warming Of Arctic Current Over 30 Years Triggers Release Of Methane Gas Page 1 of 2http://www.sciencedaily.com/releases/2009/08/090814103231.htm

    E-Print Network [OSTI]

    Rohling, Eelco

    Climate Environmental Issues Renewable Energy Oceanography Water Reference Geologic temperature record Installation Course Solar energy heating installation & renewable energ02/09/2009 16:58Warming Of Arctic Current Over 30 Years Triggers Release Of Methane Gas Page 1 of 2

  4. ARM: W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

    SciTech Connect (OSTI)

    Dan Nelson; Joseph Hardin; Iosif Lindenmaier; Bradley Isom; Karen Johnson; Nitin Bharadwaj

    1990-01-01

    W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  5. ARM: X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

    SciTech Connect (OSTI)

    Dan Nelson; Joseph Hardin; Iosif Lindenmaier; Bradley Isom; Karen Johnson; Nitin Bharadwaj

    2011-09-14

    X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  6. ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

    SciTech Connect (OSTI)

    Dan Nelson; Joseph Hardin; Iosif Lindenmaier; Bradley Isom; Karen Johnson; Nitin Bharadwaj

    2011-05-24

    Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  7. ARM: X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

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

    Dan Nelson; Joseph Hardin; Iosif (Andrei) Lindenmaier; Bradley Isom; Karen Johnson; Nitin Bharadwaj

    X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  8. ARM: W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

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

    Dan Nelson; Joseph Hardin; Iosif (Andrei) Lindenmaier; Bradley Isom; Karen Johnson; Nitin Bharadwaj

    W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  9. ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

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

    Dan Nelson; Joseph Hardin; Iosif (Andrei) Lindenmaier; Bradley Isom; Karen Johnson; Nitin Bharadwaj

    Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

  10. Black Hole Initial Data with a Horizon of Prescribed Geometry

    E-Print Network [OSTI]

    Brian Smith

    2007-10-04

    The purpose of this work is to construct asymptotically flat, time symmetric initial data with an apparent horizon of prescribed intrinsic geometry. To do this, we use the parabolic partial differential equation for prescribing scalar curvature. In this equation the horizon geometry is contained within the freely specifiable part of the metric. This contrasts with the conformal method in which the geometry of the horizon can only be specified up to a conformal factor.

  11. Dynamical Horizons: Energy, Angular Momentum, Fluxes and Balance Laws

    E-Print Network [OSTI]

    Abhay Ashtekar; Badri Krishnan

    2002-11-03

    Dynamical horizons are considered in full, non-linear general relativity. Expressions of fluxes of energy and angular momentum carried by gravitational waves across these horizons are obtained. Fluxes are local, the energy flux is positive and change in the horizon area is related to these fluxes. The flux formulae also give rise to balance laws analogous to the ones obtained by Bondi and Sachs at null infinity and provide generalizations of the first and second laws of black hole mechanics.

  12. Air-Shower Spectroscopy at horizons

    E-Print Network [OSTI]

    D. Fargion

    2005-11-20

    Horizontal and Upward air-showers are suppressed by deep atmosphere opacity and by the Earth shadows. In such noise-free horizontal and upward directions rare Ultra High Cosmic rays and rarer neutrino induced air-showers may shine, mostly mediated by resonant PeVs interactions in air or by higher energy Tau Air-showers originated by neutrino tau skimming the Earth. At high altitude (mountains, planes, balloons) the air density is so rarefied that nearly all common air-showers might be observed at their maximal growth at a tuned altitude and directions. The arrival angle samples different distances and the corresponding most probable primary cosmic ray energy. The larger and larger distances (between observer and C.R. interaction) make wider and wider the shower area and it enlarge the probability to be observed (up to three order of magnitude more than vertical showers); the observation of a maximal electromagnetic shower development may amplify the signal by two-three order of magnitude (respect suppressed shower at sea level); the peculiar altitude-angle range may disentangle at best the primary cosmic ray energy and composition. Even from existing mountain observatory the up-going air-showers may trace, above the horizons, PeV-EeV high energy cosmic rays and, below the horizons, PeV-EeV neutrino astronomy: their early signals may be captured in already existing gamma telescopes as Magic at Canarie, while facing the Earth edges during (useless) cloudy nights.

  13. The Event Horizon of M87

    E-Print Network [OSTI]

    Narayan, Ramesh; Perlman, Eric S; Rieke, Marcia J; Doeleman, Sheperd S

    2015-01-01

    The 6 billion solar mass supermassive black hole at the center of the giant elliptical galaxy M87 powers a relativistic jet. Observations at millimeter wavelengths with the Event Horizon Telescope have localized the emission from the base of this jet to angular scales comparable to the putative black hole horizon. The jet might be powered directly by an accretion disk or by electromagnetic extraction of the rotational energy of the black hole. However, even the latter mechanism requires a confining thick accretion disk to maintain the required magnetic flux near the black hole. Therefore, regardless of the jet mechanism, the observed jet power in M87 implies a certain minimum mass accretion rate. If the central compact object in M87 were not a black hole but had a surface, this accretion would result in considerable thermal near-infrared and optical emission from the surface. Current flux limits on the nucleus of M87 strongly constrain any such surface emission. This rules out the presence of a surface and th...

  14. Cosmic Censorship: Formation of a Shielding Horizon Around a Fragile Horizon

    E-Print Network [OSTI]

    Shahar Hod

    2013-02-27

    The weak cosmic censorship conjecture asserts that spacetime singularities that arise in gravitational collapse are always hidden inside of black holes, invisible to distant observers. This conjecture, put forward by Penrose more than four decades ago, is widely believed to be one of the basic principles of nature. However, a complete proof of this hypothesis is still lacking and the validity of the conjecture has therefore remained one of the most important open questions in general relativity. In this study we analyze a gedanken experiment which is designed to challenge cosmic censorship by trying to overcharge a Reissner-Nordstr\\"om black hole: a charged shell is lowered {\\it adiabatically} into the charged black hole. The mass-energy delivered to the black hole can be red-shifted by letting the dropping point of the shell approach the black-hole horizon. On the other hand, the electric charge of the shell is not red-shifted by the gravitational field of the black hole. It therefore seems, at first sight, that the charged shell is not hindered from entering the black hole, overcharging it and removing its horizon. However, in the present study we prove that the exposure of a naked singularity to distant observers is actually excluded due to the formation of a new (and {\\it larger}) horizon around the original black hole. Moreover, we shall prove that this new horizon is already formed {\\it before} the charged shell crosses the original black-hole horizon. This result, which seems to have been previously overlooked, guarantees the validity of the weak cosmic censorship conjecture in this type of gedanken experiments.

  15. Horizons versus singularities in spherically symmetric space-times

    SciTech Connect (OSTI)

    Bronnikov, K. A.; Elizalde, E.; Odintsov, S. D.; Zaslavskii, O. B.

    2008-09-15

    We discuss different kinds of Killing horizons possible in static, spherically symmetric configurations and recently classified as 'usual', 'naked', and 'truly naked' ones depending on the near-horizon behavior of transverse tidal forces acting on an extended body. We obtain the necessary conditions for the metric to be extensible beyond a horizon in terms of an arbitrary radial coordinate and show that all truly naked horizons, as well as many of those previously characterized as naked and even usual ones, do not admit an extension and therefore must be considered as singularities. Some examples are given, showing which kinds of matter are able to create specific space-times with different kinds of horizons, including truly naked ones. Among them are fluids with negative pressure and scalar fields with a particular behavior of the potential. We also discuss horizons and singularities in Kantowski-Sachs spherically symmetric cosmologies and present horizon regularity conditions in terms of an arbitrary time coordinate and proper (synchronous) time. It turns out that horizons of orders 2 and higher occur in infinite proper times in the past or future, but one-way communication with regions beyond such horizons is still possible.

  16. Pluto's Seasons: New Predictions for New Horizons L. A. Young

    E-Print Network [OSTI]

    Young, Leslie A.

    (2012) and Young (in prep). Energy balance for the world that New Horizons will encounter in 2015, and our ability to relate this snapshot to preceding

  17. Green Investment Horizons: Effects of Policy on the Market for...

    Open Energy Info (EERE)

    Green Investment Horizons: Effects of Policy on the Market for Building Energy Efficiency Technologies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Green Investment...

  18. Airships: A New Horizon for Science

    E-Print Network [OSTI]

    Miller, Sarah H; Hillenbrand, Lynne; Rhodes, Jason; Baird, Gil; Blake, Geoffrey; Booth, Jeff; Carlile, David E; Duren, Riley; Edworthy, Frederick G; Freeze, Brent; Friedl, Randall R; Goldsmith, Paul F; Hall, Jeffery L; Hoffman, Scott E; Hovarter, Scott E; Jensen-Clem, Rebecca M; Jones, Ross M; Kauffmann, Jens; Kiessling, Alina; King, Oliver G; Konidaris, Nick; Lachenmeier, Timothy L; Lord, Steven D; Neu, Jessica; Quetin, Gregory R; Ram, Alan; Sander, Stanley; Simard, Marc; Smith, Mike; Smith, Steve; Smoot, Sara; Susca, Sara; Swann, Abigail; Young, Eliot F; Zambrano, Thomas

    2014-01-01

    The "Airships: A New Horizon for Science" study at the Keck Institute for Space Studies investigated the potential of a variety of airships currently operable or under development to serve as observatories and science instrumentation platforms for a range of space, atmospheric, and Earth science. The participants represent a diverse cross-section of the aerospace sector, NASA, and academia. Over the last two decades, there has been wide interest in developing a high altitude, stratospheric lighter-than-air (LTA) airship that could maneuver and remain in a desired geographic position (i.e., "station-keeping") for weeks, months or even years. Our study found considerable scientific value in both low altitude ( 60 kft) airships across a wide spectrum of space, atmospheric, and Earth science programs. Over the course of the study period, we identified stratospheric tethered aerostats as a viable alternative to airships where station-keeping was valued over maneuverability. By opening up the sky and Earth's strato...

  19. Horizon complementarity in elliptic de Sitter space

    E-Print Network [OSTI]

    Lucas Hackl; Yasha Neiman

    2015-02-03

    We study a quantum field in elliptic de Sitter space dS_4/Z_2 - the spacetime obtained from identifying antipodal points in dS_4. We find that the operator algebra and Hilbert space cannot be defined for the entire space, but only for observable causal patches. This makes the system into an explicit realization of the horizon complementarity principle. In the absence of a global quantum theory, we propose a recipe for translating operators and states between observers. This translation involves information loss, in accordance with the fact that two observers see different patches of the spacetime. As a check, we recover the thermal state at the de Sitter temperature as a state that appears the same to all observers. This thermal state arises from the same functional that, in ordinary dS_4, describes the Bunch-Davies vacuum.

  20. Organic Aerosol Formation Downwind from the Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    Toohey, Darin W.

    Organic Aerosol Formation Downwind from the Deepwater Horizon Oil Spill Nicole ONeill - ATOC 3500 and aerosol composition of air over the Deepwater Horizon oil spill in the Gulf of Mexico. · The lightest chemicals in the oil evaporated within hours, as scientists expected them to do. What they didn't expect

  1. On a resource allocation model with infinite horizon

    E-Print Network [OSTI]

    Wagner, Marcus

    into the model which contains a weight function. The new problem, called now the adapted resource allocationOn a resource allocation model with infinite horizon Valeriya Lykina, Sabine Pickenhain and Marcus 13 44, D-03013 Cottbus, Germany #12;On a Resource Allocation Model with Infinite Horizon Valeriya

  2. Aligning Technology Solutions to Address Over-the-Horizon Threats

    E-Print Network [OSTI]

    Aligning Technology Solutions to Address Over-the-Horizon Threats As the world's geopolitical for the U.S. Government bridging the gap between policy development and technology implementation WHAT WE-the-horizon security threats and issues Analysis results to support U.S. policymakers and the science and technology

  3. Finite-Horizon Optimal Transmission Policies for Energy Harvesting Sensors

    E-Print Network [OSTI]

    Jagannathan, Krishna

    Finite-Horizon Optimal Transmission Policies for Energy Harvesting Sensors Rahul Vaze School: krishnaj@ee.iitm.ac.in Abstract--In this paper, we derive optimal transmission poli- cies for energy harvesting sensors to maximize the utility obtained over a finite horizon. First, we consider a single energy

  4. Thermodynamics of apparent horizon and modified Friedman equations

    E-Print Network [OSTI]

    Ahmad Sheykhi

    2010-12-02

    Starting from the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparent horizon of a FRW universe, and assuming that the associated entropy with apparent horizon has a quantum corrected relation, $S=\\frac{A}{4G}-\\alpha \\ln \\frac{A}{4G}+\\beta \\frac{4G}{A}$, we derive modified Friedmann equations describing the dynamics of the universe with any spatial curvature. We also examine the time evolution of the total entropy including the quantum corrected entropy associated with the apparent horizon together with the matter field entropy inside the apparent horizon. Our study shows that, with the local equilibrium assumption, the generalized second law of thermodynamics is fulfilled in a region enclosed by the apparent horizon.

  5. DOI Strategic Sciences Working Group Mississippi Canyon 252/Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    DOI Strategic Sciences Working Group Mississippi Canyon 252/Deepwater Horizon Oil Spill Strategic Sciences Working Group Mississippi Canyon 252/Deepwater Horizon Oil Spill Progress Report Executive Summary Introduction and Objectives The Mississippi Canyon 252/Deepwater Horizon (MS252) oil spill

  6. SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel...

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

    Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). SunLine Expands Horizons...

  7. Chemical fingerprinting of petroleum biomarkers in Deepwater Horizon oil spill samples collected from Alabama shoreline

    E-Print Network [OSTI]

    Clement, Prabhakar

    Chemical fingerprinting of petroleum biomarkers in Deepwater Horizon oil spill samples collected the chromatographic signatures of petroleum biomarkers in Deepwater Horizon (DH) source oil, three other reference

  8. RNA-Seq reveals complex genetic response to deepwater horizon oil release in Fundulus grandis

    E-Print Network [OSTI]

    Garcia, Tzintzuni I; Shen, Yingjia; Crawford, Douglas; Oleksiak, Marjorie F; Whitehead, Andrew; Walter, Ronald B

    2012-01-01

    Abbreviations DH: Deepwater Horizon drilling platform; AHR:blowout of the Deepwater Horizon (DH) drilling platform wasexplosion of the Deepwater Hori- zon oil drilling platform

  9. Perturbative String Thermodynamics near Black Hole Horizons

    E-Print Network [OSTI]

    Thomas G. Mertens; Henri Verschelde; Valentin I. Zakharov

    2015-07-01

    We provide further computations and ideas to the problem of near-Hagedorn string thermodynamics near (uncharged) black hole horizons, building upon our earlier work JHEP 1403 (2014) 086. The relevance of long strings to one-loop black hole thermodynamics is emphasized. We then provide an argument in favor of the absence of $\\alpha'$-corrections for the (quadratic) heterotic thermal scalar action in Rindler space. We also compute the large $k$ limit of the cigar orbifold partition functions (for both bosonic and type II superstrings) which allows a better comparison between the flat cones and the cigar cones. A discussion is made on the general McClain-Roth-O'Brien-Tan theorem and on the fact that different torus embeddings lead to different aspects of string thermodynamics. The black hole/string correspondence principle for the 2d black hole is discussed in terms of the thermal scalar. Finally, we present an argument to deal with arbitrary higher genus partition functions, suggesting the breakdown of string perturbation theory (in $g_s$) to compute thermodynamical quantities in black hole spacetimes.

  10. Entropy of isolated horizons from quantum gravity condensates

    E-Print Network [OSTI]

    Oriti, Daniele; Sindoni, Lorenzo

    2015-01-01

    We construct condensate states encoding the continuum spherically symmetric quantum geometry of an isolated horizon in full quantum gravity, i.e. without any classical symmetry reduction, in the group field theory formalism. Tracing over the bulk degrees of freedom, we show how the resulting reduced density matrix manifestly exhibits an holographic behavior. We derive a complete orthonormal basis of eigenstates for the reduced density matrix of the horizon and use it to compute the horizon entanglement entropy. By imposing consistency with the isolated horizon boundary conditions and semi-classical thermodynamical properties, we recover the Bekenstein--Hawking entropy formula for any value of the Immirzi parameter. Our analysis supports the equivalence between the von Neumann (entanglement) entropy interpretation and the Boltzmann (statistical) one.

  11. A Fast Moving Horizon Estimation Algorithm Based on Nonlinear ...

    E-Print Network [OSTI]

    2008-02-19

    Department of Chemical Engineering, Carnegie Mellon University, 5000 ... Moving Horizon Estimation (MHE) is an efficient optimization-based strategy ...... concentrations of ethylene, butane, methane and impurities throughout the plant units.

  12. A note on electrical and thermodynamic properties of Isolated Horizon

    E-Print Network [OSTI]

    Gerui Chen; Xiaoning Wu; Sijie Gao

    2014-10-29

    The electrical laws and Carnot cycle of Isolated Horizon (IH) are investigated in this paper. We establish the Ohm's law and Joule's law of an Isolated Horizon, and find that the conceptual picture of black holes (Membrane Paradigm) can also apply to this kind of quasi-local black holes. We also investigate the geometrical properties near a non-rotating IH, and find that under the first-order approximation of r, there exist a Killing vector and a Hamiltonian conjugate to it, so this vector is a physical observer. We calculate the energy as measured at infinity of a particle at rest outside a non-rotating IH, and use this result to construct a reversible Carnot cycle with the Isolated Horizon as a cold reservoir, which confirms the thermodynamic nature of Isolated Horizon.

  13. Acoustic measurement of the Deepwater Horizon Macondo well flow rate

    E-Print Network [OSTI]

    Camilli, Richard

    On May 31, 2010, a direct acoustic measurement method was used to quantify fluid leakage rate from the Deepwater Horizon Macondo well prior to removal of its broken riser. This method utilized an acoustic imaging sonar and ...

  14. Can an evolving Universe host a static event horizon?

    E-Print Network [OSTI]

    Aharon Davidson; Shimon Rubin; Yosef Verbin

    2012-11-09

    We prove the existence of general relativistic perfect fluid black hole solutions, and demonstrate the phenomenon for the $P=w\\rho$ class of equations of state. While admitting a local time-like Killing vector on the event horizon itself, the various black hole configurations are necessarily time dependent (thereby avoiding a well known no-go theorem) away from the horizon. Consistently, Hawking's imaginary time periodicity is globally manifest on the entire spacetime manifold.

  15. Quantum mechanics emerges from information theory applied to causal horizons

    E-Print Network [OSTI]

    Jae-Weon Lee

    2011-02-28

    It is suggested that quantum mechanics is not fundamental but emerges from classical information theory applied to causal horizons. The path integral quantization and quantum randomness can be derived by considering information loss of fields or particles crossing Rindler horizons for accelerating observers. This implies that information is one of the fundamental roots of all physical phenomena. The connection between this theory and Verlinde's entropic gravity theory is also investigated.

  16. Quantum mechanics emerges from information theory applied to causal horizons

    E-Print Network [OSTI]

    Lee, Jae-Weon

    2010-01-01

    It is suggested that quantum mechanics is not fundamental but emerges from information theory applied to a causal horizon. The path integral quantization and quantum randomness can be derived by considering information loss of fields or particles crossing Rindler horizons for accelerating observers. This implies that information is one of the fundamental root of all physical phenomena. The connection between this theory and Verlinde's entropic gravity theory is also investigated.

  17. Distributional Schwarzschild Geometry from nonsmooth regularization via Horizon

    E-Print Network [OSTI]

    Jaykov Foukzon

    2015-06-24

    In this paper we leave the neighborhood of the singularity at the origin and turn to the singularity at the horizon. Using nonlinear superdistributional geometry and supergeneralized functions it seems possible to show that the horizon singularity is not only a coordinate singularity without leaving Schwarzschild coordinates. However the Tolman formula for the total energy $E$ of a static and asymptotically flat spacetime, gives $E=m$, as it should be. New class Colombeau solutions to Einstein field equations is obtained.

  18. Energy conservation and cost benefits in the dairy processing industry

    SciTech Connect (OSTI)

    none,

    1982-01-01

    Guidance is given on measuring energy consumption in the plant and pinpointing areas where energy-conservation activities can return the most favorable economics. General energy-conservation techniques applicable to most or all segments of the dairy processing industry, including the fluid milk segment, are emphasized. These general techniques include waste heat recovery, improvements in electric motor efficiency, added insulation, refrigeration improvements, upgrading of evaporators, and increases in boiler efficiency. Specific examples are given in which these techniques are applied to dairy processing plants. The potential for energy savings by cogeneration of process steam and electricity in the dairy industry is also discussed. Process changes primarily applicable to specific milk products which have resulted in significant energy cost savings at some facilities or which promise significant contributions in the future are examined. A summary checklist of plant housekeeping measures for energy conservation and guidelines for economic evaluation of conservation alternatives are provided. (MHR)

  19. Measuring the Costs & Benefits of Nationwide Geothermal Heat Deployment

    SciTech Connect (OSTI)

    Battocletti, Elizabeth C.; Glassley, William E.

    2013-02-28

    Recovery Act: Measuring the Costs & Economic, Social, Environmental Benefits of Nationwide Geothermal Heat Deployment & the Potential Employment

  20. HIGH SPEED RAIL COSTS, BENEFITS, AND FINANCING RAYMOND H. ELLIS

    E-Print Network [OSTI]

    Incremental Capital Cost Capital Cost Year of (Billions (Billions Completion Expenditure Section 2010$) 2010$) of Section Capital Cost #12;CALIFORNIA HIGH SPEED RAIL PHASE 1 CAPITAL COSTS SECTION INCREMENTAL CAPITAL COSTS (BILLIONS $ 2010) CUMULATIVE CAPITAL COSTS (BILLIONS $ 2010) COMPLETION OF SECTION INCREMENTAL

  1. Cost-Benefit Analysis of Smart Grid Technologies Through System...

    Open Energy Info (EERE)

    Summary LAUNCH TOOL Name: Spain Installed Wind Capacity Website Focus Area: Renewable Energy Topics: Market Analysis Website: www.gwec.netindex.php?id131 Equivalent URI:...

  2. The Thermodynamic and Cost Benefits of Floating Cooling Systems 

    E-Print Network [OSTI]

    Svoboda, K. J.; Klooster, H. J.; Johnnie, D. H., Jr.

    1983-01-01

    Historically, a fixed cooling concept is used in the design of evaporative heat rejection systems for process and power plants. In the fixed cooling mode, a plant is designed for maximum output at the design summer wet bulb temperature...

  3. Cost benefit analysis for the implementation of smart metering...

    Open Energy Info (EERE)

    References "EU Smart Grid Projects Map" Retrieved from "http:en.openei.orgwindex.php?titleCostbenefitanalysisfortheimplementationofsmartmeteringwithpilot...

  4. Cost-benefit analysis conducted for nutrition education in California

    E-Print Network [OSTI]

    Block Joy, Amy; Goldman, George; Pradhan, Vijay

    2006-01-01

    Communication Services/Suzanne Paisley S Del Tredici et al.Services/Suzanne Paisley Costs (direct, indirect): Actual

  5. Fuel Consumption and Cost Benefits of DOE Vehicle Technologies...

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

    vehicles decreases with time. * Manufacturing costs associated with batteries and electric machines fall faster than those of conventional technologies (i.e., engine,...

  6. SEP Voluntary Cost/Benefit Form | Department of Energy

    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 nAandSummaryDIST OF COLUMBIANorthSEP PADepartment of

  7. SEP 2015 Cost Benefit Analysis Paper | 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 -Rob Roberts About UsWYOMINGORDER 3643FE DKT. NO.

  8. SEP Voluntary Cost/Benefit Form | 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 -Rob Roberts About UsWYOMINGORDERReduce WasteTechnical

  9. Energy savings estimates and cost benefit calculations for high performance

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefieldSulfate Reducing(Journal Article) | SciTech(Journal Article)atDiagnosticsFacilityEnergy SourcesD

  10. Energy savings estimates and cost benefit calculations for high performance

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefieldSulfate Reducing(Journal Article) | SciTech(Journal Article)atDiagnosticsFacilityEnergy

  11. Fuel Consumption and Cost Benefits of DOE Vehicle Technologies Program |

    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, 2015ExecutiveFluorescentDanKathy LoftusFuel CellFuel FuelgreenDepartment of

  12. Moving horizon estimation for distributed nonlinear systems with application to cascade river reaches 6

    E-Print Network [OSTI]

    Ferrari-Trecate, Giancarlo

    . Keywords: Large scale systems, moving horizon estimator, system partitioning, hydro power valley. 1

  13. Universal thermodynamics in different gravity theories: Modified entropy on the horizons

    E-Print Network [OSTI]

    Saugata Mitra; Subhajit Saha; Subenoy Chakraborty

    2015-03-10

    The paper deals with universal thermodynamics for FRW model of the universe bounded by apparent (or event) horizon. Assuming Hawking temperature on the horizon, the unified first law is examined on the horizon for different gravity theories. The results show that equilibrium configuration is preserved with a modification to Bekenstein entropy on the horizon.

  14. Thermodynamics of Black Hole Horizons and Kerr/CFT Correspondence

    E-Print Network [OSTI]

    Bin Chen; Shen-xiu Liu; Jia-ju Zhang

    2012-11-02

    In this paper we investigate the thermodynamics of the inner horizon and its implication on the holographic description of the black hole. We focus on the black holes with two physical horizons. Under reasonable assumption, we prove that the first law of thermodynamics of the outer horizon always indicates that of the inner horizon. As a result, the fact that the area product being mass-independent is equivalent to the relation $T_+S_+=T_-S_-$, with $T_\\pm$ and $S_\\pm$ being the Hawking temperatures and the entropies of the outer and inner horizon respectively. We find that the mass-independence of area product breaks down in general Myers-Perry black holes with spacetime dimension $d\\geq6$ and Kerr-AdS black holes with $d\\geq4$. Moreover we discuss the implication of the first laws of the outer and inner horizons on the thermodynamics of the right- and left-moving sectors of dual CFT in Kerr/CFT correspondence. We show that once the relation $T_+S_+=T_-S_-$ is satisfied, the central charges of two sectors must be same. Furthermore from the thermodynamics relations, we read the dimensionless temperatures of microscopic CFT, which are in exact agreement with the ones obtained from hidden conformal symmetry in the low frequency scattering off the black holes, and then determine the central charges. This method works well in well-known cases in Kerr/CFT correspondence, and reproduce successfully the holographic pictures for 4D Kerr-Newman and 5D Kerr black holes. We go on to predict the central charges and temperatures of a possible holographic CFT description dual to 5D doubly rotating black ring.

  15. Horizons and Tunneling in the Euclidean False Vacuum

    E-Print Network [OSTI]

    Kate Marvel; Neil Turok

    2007-12-17

    In the thin-wall approximation, the decay of a gravitating false vacuum to a lower-energy state is affected by the cosmological horizon structure in both spaces. The nucleation radius of a bubble of true vacuum depends on the surface tension of its boundary and equals the false vacuum cosmological horizon at a critical tension. We argue that there is no tunneling instanton solution beyond the critical tension and argue that there is therefore a bound on allowed membrane tension in theories which rely on semiclassical tunneling to relax the cosmological constant.

  16. Thermodynamics on the apparent horizon in generalized gravity theories

    E-Print Network [OSTI]

    Shao-Feng Wu; Bin Wang; Guo-Hong Yang

    2008-01-17

    We present a general procedure to construct the first law of thermodynamics on the apparent horizon and illustrate its validity by examining it in some extended gravity theories. Applying this procedure, we can describe the thermodynamics on the apparent horizon in Randall-Sundrum braneworld imbedded in a nontrivial bulk. We discuss the mass-like function which was used to link Friedmann equation to the first law of thermodynamics and obtain its special case which gives the generalized Misner-Sharp mass in Lovelock gravity.

  17. What happens to Petrov classification, on horizons of axisymmetric dirty black holes

    SciTech Connect (OSTI)

    Tanatarov, I. V.; Zaslavskii, O. B.

    2014-02-15

    We consider axisymmetric stationary dirty black holes with regular non-extremal or extremal horizons, and compute their on-horizon Petrov types. The Petrov type (PT) in the frame of the observer crossing the horizon can be different from that formally obtained in the usual (but singular in the horizon limit) frame of an observer on a circular orbit. We call this entity the boosted Petrov type (BPT), as the corresponding frame is obtained by a singular boost from the regular one. The PT off-horizon can be more general than PT on-horizon and that can be more general than the BPT on horizon. This is valid for all regular metrics, irrespective of the extremality of the horizon. We analyze and classify the possible relations between the three characteristics and discuss the nature and features of the underlying singular boost. The three Petrov types can be the same only for space-times of PT D and O off-horizon. The mutual alignment of principal null directions and the generator in the vicinity of the horizon is studied in detail. As an example, we also analyze a special class of metrics with utra-extremal horizons (for which the regularity conditions look different from the general case) and compare their off-horizon and on-horizon algebraic structure in both frames.

  18. Evolution of the horizons for dark energy universe

    E-Print Network [OSTI]

    Ritabrata Biswas; Nairwita Mazumder; Subenoy Chakraborty

    2011-06-12

    Recent observational evidences of accelerating phase of the universe strongly demand that the dominating matter in the universe is in the form of dark energy. In this work, we study the evolution of the apparent and event horizons for various dark energy models and examine their behavior across phantom barrier line.

  19. Seismic Volume Visualization for Horizon Extraction Daniel Patel

    E-Print Network [OSTI]

    present a novel system for rapidly interpret- ing and visualizing seismic volumetric data. First we to seismic data interpretation. Keywords: Seismic interpretation, Seismic horizons, Volume ren- dering hydrocarbons are trapped. In this paper we present a system for rapid interpretation of seismic reflection

  20. Soil Horizons Some Noteworthy Soil Science in Wisconsin

    E-Print Network [OSTI]

    Meyers, Stephen R.

    Soil Horizons Some Noteworthy Soil Science in Wisconsin Alfred E. Hartemink The impact and benefits of soil science have only partly been documented. Here I highlight four noteworthy soil science achievements from the state of Wisconsin that took place between 1870 and the early 1980s: (i) the first soil

  1. Adaptive Receding Horizon Control of a Distributed Collector Solar Field

    E-Print Network [OSTI]

    Sontag, Eduardo

    Adaptive Receding Horizon Control of a Distributed Collector Solar Field J.M. Igreja, J. M. Lemos for a distributed collector solar field which ex- plicitly explores its distributed parameter character. The plant considered is a distributed collector solar field, being described by a nonlinear hyperbolic partial

  2. Time Horizons of Environmental vs. Non-Environmental Costs

    E-Print Network [OSTI]

    Tovey, Craig A.

    1 1 #12;Time Horizons of Environmental vs. Non-Environmental Costs: Evidence from U.S. Tort Fellowship #12;Abstract One explanation for a positive correlation between environmental and financial differences between environmental and other investment opportunities. One of these systematic differences

  3. A moving horizon solution to the gas pipeline optimization problem

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    discharge pressures and supplier flow rates for Parameters Forecast of future demand loads for i i i ti describing flow of gas through a pipe. Optimization scope ­ Compression energy for the supplier to be minimized, while satisfying gas demands, contract pressures and physical constraints. Moving Horizon

  4. Horizon Report > 2014 Library Edition The NMC Horizon Report > 2014 Library Edition examines key trends, significant challenges, and

    E-Print Network [OSTI]

    Chen, Yiling

    and research libraries across the globe. #12;iii Introduction 1 Trends Accelerating Technology Adoption in Academic and Research Libraries 4 Fast Trends: Driving technology adoption in academic and research of education around the globe. This volume, the NMC Horizon Report: 2014 Library Edition, examines key trends

  5. Horizon Extender: Long-term Preservation of Data Leakage Evidence in Web Traffic

    E-Print Network [OSTI]

    Lenders, Vincent

    @tik.ee.ethz.ch Vincent Lenders armasuisse, Switzerland vincent.lenders@armasuisse.ch ABSTRACT This paper presents Horizon

  6. Did the northeastern Gulf of Mexico become greener after the Deepwater Horizon oil spill?

    E-Print Network [OSTI]

    Meyers, Steven D.

    explosion occurred on the Deepwater Horizon (DWH) oil drilling platform in the northeastern Gulf of Mexico#12;Did the northeastern Gulf of Mexico become greener after the Deepwater Horizon oil spill ecosystem in the northeastern Gulf of Mexico (NEGOM) from the Deepwater Horizon oil spill (April ­ July 2010

  7. Genomic and physiological footprint of the Deepwater Horizon oil spill on resident marsh fishes

    E-Print Network [OSTI]

    Whitehead, Andrew

    -seq | toxicogenomics Following the Deepwater Horizon (DWH) drilling disaster on April 20, 2011, in the Gulf of MexicoGenomic and physiological footprint of the Deepwater Horizon oil spill on resident marsh fishes June 13, 2011) The biological consequences of the Deepwater Horizon oil spill are unknown, especially

  8. Thermoelectric DC conductivities and Stokes flows on black hole horizons

    E-Print Network [OSTI]

    Elliot Banks; Aristomenis Donos; Jerome P. Gauntlett

    2015-07-15

    We consider a general class of electrically charged black holes of Einstein-Maxwell-scalar theory that are holographically dual to conformal field theories at finite charge density which break translation invariance explicitly. We examine the linearised perturbations about the solutions that are associated with the thermoelectric DC conductivity. We show that there is a decoupled sector at the black hole horizon which must solve generalised Stokes equations for a charged fluid. By solving these equations we can obtain the DC conductivity of the dual field theory. For one-dimensional lattices we solve the fluid equations to obtain closed form expressions for the DC conductivity in terms of the solution at the black hole horizon. We also determine the leading order DC conductivity for lattices that can be expanded as a perturbative series about translationally invariant solutions.

  9. On Thermodynamics and Phase Space of Near Horizon Extremal Geometries

    E-Print Network [OSTI]

    Hajian, Kamal

    2015-01-01

    Near Horizon Extremal Geometries (NHEG), are geometries which may appear in the near horizon region of the extremal black holes. These geometries have $SL(2,\\mathbb{R})\\!\\times\\!U(1)^n$ isometry, and constitute a family of solutions to the theory under consideration. In the first part of this report, their thermodynamic properties are reviewed, and their three universal laws are derived. In addition, at the end of the first part, the role of these laws in black hole thermodynamics is presented. In the second part of this thesis, we review building their classical phase space in the Einstein-Hilbert theory. The elements in the NHEG phase space manifold are built by appropriately chosen coordinate transformations of the original metric. These coordinate transformations are generated by some vector fields, dubbed "symplectic symmetry generators." To fully specify the phase space, we also need to identify the symplectic structure. In order to fix the symplectic structure, we use the formulation of Covariant Phase...

  10. Thermoelectric DC conductivities and Stokes flows on black hole horizons

    E-Print Network [OSTI]

    Banks, Elliot; Gauntlett, Jerome P

    2015-01-01

    We consider a general class of electrically charged black holes of Einstein-Maxwell-scalar theory that are holographically dual to conformal field theories at finite charge density which break translation invariance explicitly. We examine the linearised perturbations about the solutions that are associated with the thermoelectric DC conductivity. We show that there is a decoupled sector at the black hole horizon which must solve generalised Stokes equations for a charged fluid. By solving these equations we can obtain the DC conductivity of the dual field theory. For one-dimensional lattices we solve the fluid equations to obtain closed form expressions for the DC conductivity in terms of the solution at the black hole horizon. We also determine the leading order DC conductivity for lattices that can be expanded as a perturbative series about translationally invariant solutions.

  11. Thermoelectric DC conductivities and Stokes flows on black hole horizons

    E-Print Network [OSTI]

    Elliot Banks; Aristomenis Donos; Jerome P. Gauntlett

    2015-10-11

    We consider a general class of electrically charged black holes of Einstein-Maxwell-scalar theory that are holographically dual to conformal field theories at finite charge density which break translation invariance explicitly. We examine the linearised perturbations about the solutions that are associated with the thermoelectric DC conductivity. We show that there is a decoupled sector at the black hole horizon which must solve generalised Stokes equations for a charged fluid. By solving these equations we can obtain the DC conductivity of the dual field theory. For Q-lattices and one-dimensional lattices we solve the fluid equations to obtain closed form expressions for the DC conductivity in terms of the solution at the black hole horizon. We also determine the leading order DC conductivity for lattices that can be expanded as a perturbative series about translationally invariant solutions.

  12. A model of eternal accelerated expansion without particle horizon

    E-Print Network [OSTI]

    Wang, Zi-Liang

    2016-01-01

    In our previous paper \\cite{8}, we proposed a cosmological model from the emergence of space, which possesses a significant character of evaluating the vacuum energy from the Hubble constant and the age of universe. And one problem of this model is that there is no inflation in the early universe. In this paper, we aim at resolving this problem which leads us to a rather surprising conclusion that our cosmological model can avoid the horizon and flatness problems.

  13. New Horizons in Gravity: Dark Energy and Condensate Stars

    E-Print Network [OSTI]

    Emil Mottola

    2011-07-25

    Black holes are an apparently unavoidable prediction of classical General Relativity, at least if matter obeys the strong energy condition rho + 3p > 0. However quantum vacuum fluctuations generally violate this condition, as does the eq. of state of cosmological dark energy. When quantum effects are considered, black holes lead to a number of thermodynamic paradoxes associated with the Hawking temperature and assumption of black hole entropy, which are briefly reviewed. It is argued that the largest quantum effects arise from the conformal scalar degrees of freedom generated by the trace anomaly of the stress-energy tensor in curved space. At event horizons these can have macroscopically large backreaction effects on the geometry, potentially removing the classical event horizon of black hole and cosmological spacetimes, replacing them with a quantum phase boundary layer, where the effective value of the gravitational vacuum energy density can change. In the effective theory including the quantum effects of the anomaly, the cosmological term becomes a dynamical condensate, whose value depends upon boundary conditions at the horizon. By taking a positive value in the interior of a fully collapsed star, the effective cosmological term removes any singularity, replacing it with a smooth dark energy de Sitter interior. The resulting gravitational vacuum condensate star (or gravastar) configuration resolves all black hole paradoxes, and provides a testable alternative to black holes as the final quantum mechanical end state of complete gravitational collapse. The observed dark energy of our universe likewise may be a macroscopic finite size effect whose value depends not on Planck scale or other microphysics but on the cosmological Hubble horizon scale itself.

  14. Horizon effects with surface waves on moving water

    E-Print Network [OSTI]

    Germain Rousseaux; Philippe Maissa; Christian Mathis; Pierre Coullet; Thomas G. Philbin; Ulf Leonhardt

    2010-10-01

    Surface waves on a stationary flow of water are considered, in a linear model that includes the surface tension of the fluid. The resulting gravity-capillary waves experience a rich array of horizon effects when propagating against the flow. In some cases three horizons (points where the group velocity of the wave reverses) exist for waves with a single laboratory frequency. Some of these effects are familiar in fluid mechanics under the name of wave blocking, but other aspects, in particular waves with negative co-moving frequency and the Hawking effect, were overlooked until surface waves were investigated as examples of analogue gravity [Sch\\"utzhold R and Unruh W G 2002 Phys. Rev. D 66 044019]. A comprehensive presentation of the various horizon effects for gravity-capillary waves is given, with emphasis on the deep water/short wavelength case kh>>1 where many analytical results can be derived. A similarity of the state space of the waves to that of a thermodynamic system is pointed out.

  15. Analogue White Hole Horizon and its Impact on Sediment Transport

    E-Print Network [OSTI]

    Debasmita Chatterjee; Praloy Das; Subir Ghosh; B. S. Mazumder

    2015-05-26

    Motivated by the ideas of analogue gravity, we have performed experiments in a flume where an analogue White Hole horizon is generated, in the form of a wave blocking region, by suitably tuned uniform fluid (water) flow and counter-propagating shallow water waves. We corroborate earlier experimental observations by finding a critical wave frequency for a particular discharge above which the waves are effectively blocked beyond the horizon. An obstacle, in the form of a bottom wave, is introduced to generate a sharp blocking zone. All previous researchers used this obstacle. A novel part of our experiment is where we do not introduce the obstacle and find that wave blocking still takes place, albeit in a more diffused zone. Lastly we replace the fixed bottom wave obstacle by a movable sand bed to study the sediment transport and the impact of the horizon or wave blocking phenomenon on the sediment profile. We find signatures of the wave blocking zone in the ripple pattern.

  16. Analogue White Hole Horizon and its Impact on Sediment Transport

    E-Print Network [OSTI]

    Chatterjee, Debasmita; Ghosh, Subir; Mazumder, B S

    2015-01-01

    Motivated by the ideas of analogue gravity, we have performed experiments in a flume where an analogue White Hole horizon is generated, in the form of a wave blocking region, by suitably tuned uniform fluid (water) flow and counter-propagating shallow water waves. We corroborate earlier experimental observations by finding a critical wave frequency for a particular discharge above which the waves are effectively blocked beyond the horizon. An obstacle, in the form of a bottom wave, is introduced to generate a sharp blocking zone. All previous researchers used this obstacle. A novel part of our experiment is where we do not introduce the obstacle and find that wave blocking still takes place, albeit in a more diffused zone. Lastly we replace the fixed bottom wave obstacle by a movable sand bed to study the sediment transport and the impact of the horizon or wave blocking phenomenon on the sediment profile. We find signatures of the wave blocking zone in the ripple pattern.

  17. Diffusive Evolution of Gaseous and Diffusive Evolution of Gaseous and Hydrate Horizons of Methane in SeabedHydrate Horizons of Methane in Seabed

    E-Print Network [OSTI]

    Banaji,. Murad

    Diffusive Evolution of Gaseous and Diffusive Evolution of Gaseous and Hydrate Horizons of Methane in SeabedHydrate Horizons of Methane in Seabed Denis S. Goldobin (University of Leicester),Denis S. Goldobin"")) MethaneNetMethaneNet Early Career Workshop Early Career Workshop MiltonMilton KeynesKeynes 2929

  18. DOE's Portal to Deepwater Horizon Oil Spill Data

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

    On April 20, 2010, the Deepwater Horizon platform in the Gulf of Mexico exploded. The explosion and fire killed and injured workers on the oil rig, and caused major releases of oil and gas into the Gulf for several months. The Department of Energy, in keeping with the Obama Administrations ongoing commitment to transparency, provided online access to data and information related to the response to the BP oil spill. Included are schematics, pressure tests, diagnostic results, video clips, and other data. There are also links to the Restore the Gulf website, to the trajectory forecasts from NOAA, and oil spill information from the Environmental Protection Agency.

  19. EaglePicher Horizon Batteries LLC | 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 SECTIONRobertsdale, AlabamaETEC GmbH Jump to: navigation, search Name: ETECMountain,EaglePicher Horizon

  20. Non-equilibrium thermodynamics of dark energy on the power-law entropy corrected apparent horizon

    E-Print Network [OSTI]

    M. Umar Farooq; Mubasher Jamil

    2011-11-24

    We investigate the Friedmann-Robertson-Walker (FRW) universe (containing dark energy) as a non-equilibrium (irreversible) thermodynamical system by considering the power-law correction to the horizon entropy. By taking power-law entropy area law which appear in dealing with the entanglement of quantum fields in and out the horizon, we determine the power-law entropy corrected apparent horizon of the FRW universe.

  1. Forecasting stock market returns over multiple time horizons

    E-Print Network [OSTI]

    Kroujiline, Dimitri; Ushanov, Dmitry; Sharov, Sergey V; Govorkov, Boris

    2015-01-01

    In this paper we seek to demonstrate the predictability of stock market returns and explain the nature of this return predictability. To this end, we further develop the news-driven analytic model of the stock market derived in Gusev et al. (2015). This enables us to capture market dynamics at various timescales and shed light on mechanisms underlying certain market behaviors such as transitions between bull- and bear markets and the self-similar behavior of price changes. We investigate the model and show that the market is nearly efficient on timescales shorter than one day, adjusting quickly to incoming news, but is inefficient on longer timescales, where news may have a long-lasting nonlinear impact on dynamics attributable to a feedback mechanism acting over these horizons. Using the model, we design the prototypes of algorithmic strategies that utilize news flow, quantified and measured, as the only input to trade on market return forecasts over multiple horizons, from days to months. The backtested res...

  2. Stability of black holes based on horizon thermodynamics

    E-Print Network [OSTI]

    Ma, Meng-Sen

    2015-01-01

    On the basis of horizon thermodynamics we study the thermodynamic stability of black holes constructed in general relativity and Gauss-Bonnet gravity. In the framework of horizon thermodynamics there are only five thermodynamic variables $E,P,V,T,S$. It is not necessary to consider concrete matter fields, which may contribute to the pressure of black hole thermodynamic system. In non-vacuum cases, we can derive the equation of state, $P=P(V,T)$. According to the requirements of stable equilibrium in conventional thermodynamics, we start from these thermodynamic variables to calculate the heat capacity at constant pressure and Gibbs free energy and analyze the local and global thermodynamic stability of black holes. It is shown that $P>0$ is the necessary condition for black holes in general relativity to be thermodynamically stable, however this condition cannot be satisfied by many black holes in general relativity. For black hole in Gauss-Bonnet gravity negative pressure can be feasible, but only local stab...

  3. Stability of black holes based on horizon thermodynamics

    E-Print Network [OSTI]

    Meng-Sen Ma; Ren Zhao

    2015-11-11

    On the basis of horizon thermodynamics we study the thermodynamic stability of black holes constructed in general relativity and Gauss-Bonnet gravity. In the framework of horizon thermodynamics there are only five thermodynamic variables $E,P,V,T,S$. It is not necessary to consider concrete matter fields, which may contribute to the pressure of black hole thermodynamic system. In non-vacuum cases, we can derive the equation of state, $P=P(V,T)$. According to the requirements of stable equilibrium in conventional thermodynamics, we start from these thermodynamic variables to calculate the heat capacity at constant pressure and Gibbs free energy and analyze the local and global thermodynamic stability of black holes. It is shown that $P>0$ is the necessary condition for black holes in general relativity to be thermodynamically stable, however this condition cannot be satisfied by many black holes in general relativity. For black hole in Gauss-Bonnet gravity negative pressure can be feasible, but only local stable black hole exists in this case.

  4. Lithophysal Rock Mass Mechanical Properties of the Repository Host Horizon

    SciTech Connect (OSTI)

    D. Rigby

    2004-11-10

    The purpose of this calculation is to develop estimates of key mechanical properties for the lithophysal rock masses of the Topopah Spring Tuff (Tpt) within the repository host horizon, including their uncertainties and spatial variability. The mechanical properties to be characterized include an elastic parameter, Young's modulus, and a strength parameter, uniaxial compressive strength. Since lithophysal porosity is used as a surrogate property to develop the distributions of the mechanical properties, an estimate of the distribution of lithophysal porosity is also developed. The resulting characterizations of rock parameters are important for supporting the subsurface design, developing the preclosure safety analysis, and assessing the postclosure performance of the repository (e.g., drift degradation and modeling of rockfall impacts on engineered barrier system components).

  5. Thermodynamics of Evolving Lorentzian Wormhole at Apparent and Event Horizons

    E-Print Network [OSTI]

    Ujjal Debnath; Mubasher Jamil; R. Myrzakulov; M. Akbar

    2012-04-06

    We have investigated the non-static Lorentzian Wormhole model in presence of anisotropic pressure. We have presented some exact solutions of Einstein equations for anisotropic pressure case. Introducing two EoS parameters we have shown that these solutions give very rich dynamics of the universe yielding to the different expansion history of it in the $r$ - direction and in the $T$ - direction. The corresponding explicit forms of the shape function $b(r)$ is presented.We have shown that the Einstein's field equations and unified first law are equivalent for the dynamical wormhole model. The first law of thermodynamics has been derived by using the Unified first law. The physical quantities including surface gravity and the temperature are derived for the wormhole. Here we have obtained all the results without any choice of the shape function. The validity of generalized second law (GSL) of thermodynamics has been examined at apparent and event horizons for the evolving Lorentzian wormhole.

  6. Review of “Deepwater Horizon Release Estimate of Rate by PIV”

    SciTech Connect (OSTI)

    Onishi, Yasuo

    2010-06-01

    The Plume Calculation Team (PCT) conducted high quality work within a very short period of time, in spite of needing to use less than ideal quality videos provided by British Petroleum (BP), especially those made before the cutoff of the riser above the Blow Out Preventer (BOP) on June 3, 2010. There are at least two valid approaches for estimating the oil discharge coming out from the Deepwater Horizon broken pipeline and its riser, using BP videotapes. One method is to estimate the exit velocity directly with the use of the Particle Image Velocimetry (PIV). The second method is to use a buoyant plume analysis to determine the exit velocity. The PCT used both of these methods.

  7. Deepwater Horizon crude oil impacts the developing hearts of large predatory pelagic fish

    E-Print Network [OSTI]

    Grosell, Martin

    Deepwater Horizon crude oil impacts the developing hearts of large predatory pelagic fish John P November 6, 2013) The Deepwater Horizon disaster released more than 636 million L of crude oil and larvae) of tunas, swordfish, and other large predators were potentially exposed to crude oil

  8. Many Task Computing for Modeling the Fate of Oil Discharged from the Deep Water Horizon Well

    E-Print Network [OSTI]

    Many Task Computing for Modeling the Fate of Oil Discharged from the Deep Water Horizon Well@jhu.edu Abstract--The Deep Water Horizon well blowout on April 20th 2010 discharged between 40,000 - 1.2 million@med.miami.edu O. M. Knio Dept of Mechanical Engineering Johns Hopkins University Baltimore, MD knio

  9. Flood control of rivers with nonlinear model predictive control and moving horizon estimation

    E-Print Network [OSTI]

    ]. Several studies can be found in literature where MPC is used to control water systems [15], [16] and [5Flood control of rivers with nonlinear model predictive control and moving horizon estimation control (MPC) in combination with moving horizon estimation (MHE) can more effectively be used for flood

  10. OFFICE OF RESPONSE AND RESTORATION ! EMERGENCY RESPONSE DIVISION Deepwater Horizon Oil

    E-Print Network [OSTI]

    OFFICE OF RESPONSE AND RESTORATION ! EMERGENCY RESPONSE DIVISION Deepwater Horizon Oil: Characteristics and Concerns Oil spilled from the Deepwater Horizon wellhead has been accumulating in the environment of the Gulf of Mexico since April 20. This document describes the potential forms the oil may take

  11. Regularity of Horizons and The Area Theorem Piotr T. Chru sciel Erwann Delay y

    E-Print Network [OSTI]

    ChruÂ?ciel, Piotr T.

    Conclusions 51 A The Geometry of C 2 Null Hypersurfaces 52 B Some comments on the area theorem of HawkingRegularity of Horizons and The Area Theorem Piotr T. Chru#19;sciel #3; Erwann Delay y D#19 12, 2000 Abstract We prove that the area of sections of future event horizons in space{ times

  12. Real-time Trajectory Design for Unmanned Aerial Vehicles using Receding Horizon Control

    E-Print Network [OSTI]

    Real-time Trajectory Design for Unmanned Aerial Vehicles using Receding Horizon Control by Yoshiaki Students #12;2 #12;Real-time Trajectory Design for Unmanned Aerial Vehicles using Receding Horizon Control This thesis investigates the coordination and control of fleets of unmanned aerial vehicles (UAVs). Future

  13. An introduction to local Black Hole horizons in the 3+1 approach to General Relativity

    E-Print Network [OSTI]

    José Luis Jaramillo

    2011-08-11

    We present an introduction to dynamical trapping horizons as quasi-local models for black hole horizons, from the perspective of an Initial Value Problem approach to the construction of generic black hole spacetimes. We focus on the geometric and structural properties of these horizons aiming, as a main application, at the numerical evolution and analysis of black hole spacetimes in astrophysical scenarios. In this setting, we discuss their dual role as an "a priori" ingredient in certain formulations of Einstein equations and as an "a posteriori" tool for the diagnosis of dynamical black hole spacetimes. Complementary to the first-principles discussion of quasi-local horizon physics, we place an emphasis on the "rigidity" properties of these hypersurfaces and their role as privileged geometric probes into near-horizon strong-field spacetime dynamics.

  14. Deep-Diving Cetaceans of the Gulf of Mexico : : Acoustic Ecology and Response to Natural and Anthropogenic Forces Including the Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    Merkens, Karlina Paul

    2013-01-01

    occurred on the Deepwater Horizon drilling rig, which wasBP Deepwater Horizon Oil Spill and O? shore Drilling, 2010]BP Deepwater Horizon Oil Spill and O?shore Drilling (2010).

  15. Real-Time Adaptive Management of Soil Salinity Using a Receding Horizon Control Algorithm: A Pilot-Scale Demonstration

    E-Print Network [OSTI]

    Park, Yeonjeong; Harmon, Thomas C

    2009-01-01

    optimization horizon. After the first optimal control is applied for the current management time step, the optimization process

  16. National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling THE AMOUNT AND FATE OF THE OIL

    E-Print Network [OSTI]

    Meyers, Steven D.

    - 1 - National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling THE AMOUNT of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling for the use of members responders assertions. 2 DEEPWATER HORIZON MC252 GULF INCIDENT OIL BUDGET [hereinafter OIL BUDGET] (Aug. 4

  17. Application of initial data sequences to the study of Black Hole dynamical trapping horizons

    E-Print Network [OSTI]

    Jaramillo, José Luis; Vasset, Nicolas; 10.1063/1.3141305

    2011-01-01

    Non-continuous "jumps" of Apparent Horizons occur generically in 3+1 (binary) black hole evolutions. The dynamical trapping horizon framework suggests a spacetime picture in which these "Apparent Horizon jumps" are understood as spatial cuts of a single spacetime hypersurface foliated by (compact) marginally outer trapped surfaces. We present here some work in progress which makes use of uni-parametric sequences of (axisymmetric) binary black hole initial data for exploring the plausibility of this spacetime picture. The modelling of Einstein evolutions by sequences of initial data has proved to be a successful methodological tool in other settings for the understanding of certain qualitative features of evolutions in restricted physical regimes.

  18. New Horizons for Hydrogen: Producing Hydrogen from Renewable Resources

    SciTech Connect (OSTI)

    Not Available

    2011-02-01

    Recent events have reminded us of the critical need to transition from crude oil, coal, and natural gas toward sustainable and domestic sources of energy. One reason is we need to strengthen our economy. In 2008 we saw the price of oil reach a record $93 per barrel. With higher oil prices, growing demand for gasoline, and increasing oil imports, an average of $235 billion per year, has left the United States economy to pay for foreign oil since 2005, or $1.2 trillion between 2005 and 2009. From a consumer perspective, this trend is seen with an average gasoline price of $2.50 per gallon since 2005, compared to an average of $1.60 between 1990 and 2004 (after adjusting for inflation). In addition to economic impacts, continued reliance on fossil fuels increases greenhouse gas emissions that may cause climate change, health impacts from air pollution, and the risk of disasters such as the Deepwater Horizon oil spill. Energy efficiency in the form of more efficient vehicles and buildings can help to reduce some of these impacts. However, over the long term we must shift from fossil resources to sustainable and renewable energy sources.

  19. Horizon of quantum black holes in various dimensions

    E-Print Network [OSTI]

    Casadio, Roberto; Giugno, Andrea; Mureika, Jonas

    2015-01-01

    We adapt the horizon wave-function formalism to describe massive static spherically symmetric sources in a general $(1+D)$-dimensional space-time, for $D>3$ and including the $D=1$ case. We find that the probability $P_{\\rm BH} $ that such objects are (quantum) black holes behaves similarly to the probability in the $(3+1)$ framework for $D> 3$. In fact, for $D\\ge 3$, the probability increases towards unity as the mass grows above the relevant $D$-dimensional Planck scale $m_D$, the faster the larger $D$. In contrast, for $D=1$, we find the probability is comparably larger for smaller masses, but $P_{\\rm BH} < 0.5$, suggesting that such lower dimensional black holes are purely quantum and not classical objects. This result is consistent with recent observations that sub-Planckian black holes are governed by an effective two-dimensional gravitation theory. Lastly, we derive Generalised Uncertainty Principle relations for the black holes under consideration, and for all cases find a minimum length scale $L_D...

  20. Vacuum non-expanding horizons and shear-free null geodesic congruences

    E-Print Network [OSTI]

    T. M. Adamo; E. T. Newman

    2009-08-05

    We investigate the geometry of a particular class of null surfaces in space-time called vacuum Non-Expanding Horizons (NEHs). Using the spin-coefficient equation, we provide a complete description of the horizon geometry, as well as fixing a canonical choice of null tetrad and coordinates on a NEH. By looking for particular classes of null geodesic congruences which live exterior to NEHs but have the special property that their shear vanishes at the intersection with the horizon, a good cut formalism for NEHs is developed which closely mirrors asymptotic theory. In particular, we show that such null geodesic congruences are generated by arbitrary choice of a complex world-line in a complex four dimensional space, each such choice induces a CR structure on the horizon, and a particular world-line (and hence CR structure) may be chosen by transforming to a privileged tetrad frame.

  1. New Horizons in Gravity: The Trace Anomaly, Dark Energy and Condensate Stars

    E-Print Network [OSTI]

    Mottola, Emil

    2010-01-01

    General Relativity receives quantum corrections relevant at macroscopic distance scales and near event horizons. These arise from the conformal scalar degrees of freedom in the extended effective field theory of gravity generated by the trace anomaly of massless quantum fields in curved space. The origin of these conformal scalar degrees of freedom as massless poles in two-particle intermediate states of anomalous amplitudes in flat space is exposed. At event horizons the conformal anomaly scalar degrees of freedom can have macroscopically large effects on the geometry, potentially removing the classical event horizon of black hole and cosmological spacetimes, replacing them with a quantum boundary layer where the effective value of the gravitational vacuum energy density can change. In the effective theory, the cosmological term becomes a dynamical condensate, whose value depends upon boundary conditions near the horizon. In the conformal phase where the anomaly induced fluctutations dominate, and the conden...

  2. New Horizons for Spatial Data Quality Research Suzie Larrive, Yvan Bdard, Marc Gervais & Tania Roy

    E-Print Network [OSTI]

    New Horizons for Spatial Data Quality Research Suzie Larrivée, Yvan Bédard, Marc Gervais & Tania, Canada Suzie.Larrivee@scg.ulaval.ca, Yvan.Bedard@scg.ulaval.ca, Marc.Gervais@scg.ulaval.ca, Tania.Roy.2

  3. FINDING KBO FLYBY TARGETS FOR NEW HORIZONS JOHN SPENCER and MARC BUIE

    E-Print Network [OSTI]

    Young, Leslie A.

    FINDING KBO FLYBY TARGETS FOR NEW HORIZONS JOHN SPENCER and MARC BUIE Lowell Observatory LESLIE maintained by Marc Buie at http://www.lowell.edu/buie/kbo/kbofollowup.html (histogram, right axis). The good

  4. First law of thermodynamics for dynamical apparent horizons and the entropy of Friedmann universes

    E-Print Network [OSTI]

    Viaggiu, Stefano

    2015-01-01

    Recently, we have generalized the Bekenstein-Hawking entropy formula for black holes embedded in expanding Friedmann universes. In this letter, we begin the study of this new formula to obtain the first law of thermodynamics for dynamical apparent horizons. In this regard we obtain a generalized expression for the internal energy $U$ together with a distinction between the dynamical temperature $T_D$ of apparent horizons and the related one due to thermodynamics formulas. Remarkable, when the expression for $U$ is applied to the apparent horizon of the universe, we found that this internal energy is a constant of motion. Our calculations thus show that the total energy of our spatially flat universe including the gravitational contribution, when calculated at the apparent horizon, is an universal constant that can be set to zero from simple dimensional considerations. This strongly support the holographic principle.

  5. From hurricanes to the Deepwater Horizon oil spill in coastal Louisiana: The impact of regulatory change

    E-Print Network [OSTI]

    Cheong, So-Min

    2014-01-01

    The issue of whether adaptations to past disasters can impede adaptation to new disasters of a different type or intensity will be analyzed by examining the transition from frequent hurricanes to the Deepwater Horizon oil spill in coastal Louisiana...

  6. US Hydro 2011 Tampa, FL April 2528, 2011 1 On the Horizon

    E-Print Network [OSTI]

    New Hampshire, University of

    US Hydro 2011 Tampa, FL April 2528, 2011 1 On the Horizon: Better Bottom Detection for areas the eelgrass canopy and seafloor. #12;US Hydro 2011 Tampa, FL April 2528, 2011 2 Figure 1: Bottom detections

  7. Thermal Conductivity of the Potential Repository Horizon Model Report

    SciTech Connect (OSTI)

    J. Ramsey

    2002-08-29

    The purpose of this report is to assess the spatial variability and uncertainty of thermal conductivity in the host horizon for the proposed repository at Yucca Mountain. More specifically, the lithostratigraphic units studied are located within the Topopah Spring Tuff (Tpt) and consist of the upper lithophysal zone (Tptpul), the middle nonlithophysal zone (Tptpmn), the lower lithophysal zone (Tptpll), and the lower nonlithophysal zone (Tptpln). The Tptpul is the layer directly above the repository host layers, which consist of the Tptpmn, Tptpll, and the Tptpln. Current design plans indicate that the largest portion of the repository will be excavated in the Tptpll (Board et al. 2002 [157756]). The main distinguishing characteristic among the lithophysal and nonlithophysal units is the percentage of large scale (cm-m) voids within the rock. The Tptpul and Tptpll, as their names suggest, have a higher percentage of lithophysae than the Tptpmn and the Tptpln. Understanding the influence of the lithophysae is of great importance to understanding bulk thermal conductivity and perhaps repository system performance as well. To assess the spatial variability and uncertainty of thermal conductivity, a model is proposed that is functionally dependent on the volume fraction of lithophysae and the thermal conductivity of the matrix portion of the rock. In this model, void space characterized as lithophysae is assumed to be air-saturated under all conditions, while void space characterized as matrix may be either water- or air-saturated. Lithophysae are assumed to be air-saturated under all conditions since the units being studied are all located above the water table in the region of interest, and the relatively strong capillary forces of the matrix will, under most conditions, preferentially retain any moisture present in the rock.

  8. Small black holes on branes: Is the horizon regular or singular?

    SciTech Connect (OSTI)

    Karasik, D.; Sahabandu, C.; Suranyi, P.; Wijewardhana, L.C.R.

    2004-09-15

    We investigate the following question: Consider a small mass, with {epsilon} (the ratio of the Schwarzschild radius and the bulk curvature length) much smaller than 1, that is confined to the TeV brane in the Randall-Sundrum I scenario. Does it form a black hole with a regular horizon, or a naked singularity? The metric is expanded in {epsilon} and the asymptotic form of the metric is given by the weak field approximation (linear in the mass). In first order of {epsilon} we show that the iteration of the weak field solution, which includes only integer powers of the mass, leads to a solution that has a singular horizon. We find a solution with a regular horizon but its asymptotic expansion in the mass also contains half integer powers.

  9. Anyonic statistics and large horizon diffeomorphisms for Loop Quantum Gravity Black Holes

    E-Print Network [OSTI]

    Andreas G. A. Pithis; Hans-Christian Ruiz Euler

    2015-03-24

    We investigate the role played by large diffeomorphisms of quantum Isolated Horizons for the statistics of LQG Black Holes by means of their relation to the braid group. To this aim the symmetries of Chern-Simons theory are recapitulated with particular regard to the aforementioned type of diffeomorphisms. For the punctured spherical horizon, these are elements of the mapping class group of $S^2$, which is almost isomorphic to a corresponding braid group on this particular manifold. The mutual exchange of quantum entities in two dimensions is achieved by the braid group, rendering the statistics anyonic. With this we argue that the quantum Isolated Horizon model of LQG based on $SU(2)_k$-Chern-Simons theory explicitly exhibits non-abelian anyonic statistics. In this way a connection to the theory behind the fractional quantum Hall effect and that of topological quantum computation is established, where non-abelian anyons play a significant role.

  10. Quantization of area for event and Cauchy horizons of the Kerr-Newman black hole

    E-Print Network [OSTI]

    Visser, Matt

    2012-01-01

    Based on various string theoretic constructions, there have been repeated suggestions that the areas of black hole event horizons should be quantized in a quite specific manner, involving linear combinations of square roots of natural numbers. It is important to realise the significant physical limitations of such proposals when one attempts to extend them outside their original framework. Specifically, in their most natural and direct physical interpretations, these specific proposals for horizon areas fail for the ordinary Kerr-Newman black holes in (3+1) dimensions, essentially because the fine structure constant is not an integer. A more baroque interpretation involves asserting the fine structure constant is the square root of a rational number; but such a proposal has its own problems. Insofar as one takes (3+1) general relativity (plus the usual quantization of angular momentum and electric charge) as being paramount, the known explicitly calculable spectra of horizon areas for the physically compellin...

  11. Wave Properties of Plasma Surrounding the Event Horizon of a Non-Rotating Black Hole

    E-Print Network [OSTI]

    M. Sharif; G. Mustafa

    2008-09-09

    We have studied the wave properties of the cold and isothermal plasma in the vicinity of the Schwarzschild black hole event horizon. The Fourier analyzed perturbed 3+1 GRMHD equations are taken on the basis of which the complex dispersion relations are obtained for non-rotating, rotating non-magnetized and rotating magnetized backgrounds. The propagation and attenuation vectors along with the refractive index are obtained (shown in graphs) to study the dispersive properties of the medium near the event horizon. The results show that no information can be obtained from the Schwarzschild magnetosphere. Further, the pressure ceases the existence of normal dispersion of waves.

  12. New Horizons Science Photos from NASA's Pluto-Kuiper Belt Mission

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

    DOE provided the power supply for NASA's New Horizons Mission, a mission to the Pluto and Charon, a double-planet system, and the Kuiper Belt. There are 61 science photos posted on the New Horizons website, along with mission photos, spacecraft images, launch photos, posters and renderings that are both scientific and artistic. Dates range from June of 2006 to February of 2008. The images can be searched by keywords, by date, or by subject topic. They can also be browsed as an entire list. Each image has a detailed description.

  13. Force-free magnetosphere on near-horizon geometry of near-extreme Kerr black holes

    E-Print Network [OSTI]

    Huiquan Li; Cong Yu; Jiancheng Wang; Zhaoyi Xu

    2015-04-03

    We study force-free magnetospheres in the Blandford-Znajek process from rapidly rotating black holes by adopting the near-horizon geometry of near-extreme Kerr black holes (near-NHEK). It is shown that the Znajek regularity condition on the horizon can be directly derived from the resulting stream equation. In terms of the condition, we split the full stream equation into two separate equations. Approximate solutions around the rotation axis are derived. They are found to be consistent with previous solutions obtained in the asymptotic region. The solutions indicate energy and angular-momentum extraction from the hole.

  14. Study: Exposure to crude oil from the Deepwater Horizon disaster causes swimming deficiencies in juvenile mahi mahi

    E-Print Network [OSTI]

    Grosell, Martin

    Study: Exposure to crude oil from the Deepwater Horizon disaster causes swimming deficiencies of large fish Crude oil spreads across a wide swath of the Gulf of Mexico during the 2010 Deepwater Horizon. The four million barrels of crude oil that spewed into the Gulf of Mexico from BP's failed oil drilling

  15. Using Marker Horizons and Cryogenic Coring to Monitor Sediment Deposition in Salt Marshes of the Bay of Fundy

    E-Print Network [OSTI]

    Chmura, Gail L.

    marsh samples has advantages over other coring methods. By freezing the salt marsh soil in CryogenicUsing Marker Horizons and Cryogenic Coring to Monitor Sediment Deposition in Salt Marshes that has accumulated over the marker horizon is measured. Cryogenic coring is one method of extracting

  16. Advancing along the N = Z line : a 30 year odyssey.

    SciTech Connect (OSTI)

    Lister, C. J.; Physics

    2008-01-01

    N = Z nuclei have always had a special role in nuclear physics due to the symmetry of their wavefunctions, and their anomalously high binding energy. Beyond {sup 56}Ni they gain new significance, as they lie close to the proton dripline, and approaching {sup 100}Sn, they define the dripline. They are interesting for their structure, for rp-process nucleosynthesis, and as laboratories for weak interaction physics. In this paper I review some currently interesting topics and open questions.

  17. Celebrating 30 Years of K-12 Educational Programming at Fermilab

    SciTech Connect (OSTI)

    Bardeen, M.; Cooke, M.P.; /Fermilab

    2011-09-01

    In 1980 Leon Lederman started Saturday Morning Physics with a handful of volunteer physicists, around 300 students and all the physics teachers who tagged along. Today Fermilab offers over 30 programs annually with help from 250 staff volunteers and 50 educators, and serves around 40,000 students and 2,500 teachers. Find out why we bother. Over the years we have learned to take advantage of opportunities and confront challenges to offer effective programs for teachers and students alike. We offer research experiences for secondary school teachers and high school students. We collaborate with educators to design and run programs that meet their needs and interests. Popular school programs include classroom presentations, experience-based field trips, and high school tours. Through our work in QuarkNet and I2U2, we make real particle physics data available to high school students in datadriven activities as well as masterclasses and e-Labs. Our professional development activities include a Teacher Resource Center and workshops where teachers participate in authentic learning experiences as their students would. We offer informal classes for kids and host events where children and adults enjoy the world of science. Our website hosts a wealth of online resources. Funded by the U.S. Department of Energy, the National Science Foundation and Fermilab Friends for Science Education, our programs reach out across Illinois, throughout the United States and even around the world. We will review the program portfolio and share comments from the volunteers and participants.

  18. Binary and recycled pulsars: 30 years after observational discovery

    E-Print Network [OSTI]

    G S Bisnovatyi-Kogan

    2006-11-13

    Binary radio pulsars, first discovered by Hulse and Taylor in 1974 [1], are a unique tool for experimentally testing general relativity (GR), whose validity has been confirmed with a precision unavailable in laboratory experiments. In particular, indirect evidence of the existence of gravitational waves has been obtained. Radio pulsars in binary systems (which have come to be known as recycled) have completed the accretion stage, during which neutron star spins reach millisecond periods and their magnetic fields decay 2 to 4 orders of magnitude more weakly than ordinary radio pulsars. Among about a hundred known recycled pulsars, many have turned out to be single neutron stars. The high concentration of single recycled pulsars in globular clusters suggests that close stellar encounters are highly instrumental in the loss of the companion. A system of one recycled pulsar and one 'normal' one discovered in 2004 is the most compact among binaries containing recycled pulsars [2]. Together with the presence of two pulsars in one system, this suggests new prospects for further essential improvements in testing GR. This paper considers theoretical predictions of binary pulsars, their evolutionary formation, and mechanisms by which their companions may be lost. The use of recycled pulsars in testing GR is discussed and their possible relation to the most intriguing objects in the universe, cosmic gamma-ray bursts, is examined.

  19. Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations

    E-Print Network [OSTI]

    Sohn, Hong-Gyoo; Jezek, Kenneth C.; van der Veen, Cornelis J.

    1998-07-05

    Early 1960's reconnaissance satellite images are compared to more recent image and map data in an interannual and seasonal study of West Central Greenland margin fluctuations. From 1962 to 1992, ice sheet margins to the north and south of Jakobshavn...

  20. 1995 solid waste 30-year characteristics volume summary

    SciTech Connect (OSTI)

    Templeton, K.J.; DeForest, T.J.; Rice, G.I. [Pacific Northwest Lab., Richland, WA (United States); Valero, O.J. [Westinghouse Hanford Co., Richland, WA (United States)

    1995-10-01

    The Hanford Site has been designated by the US Department of Energy (DOE) to store, treat, and dispose of solid waste received from both onsite and offsite generators. This waste is currently or planned to be generated from ongoing operations, maintenance and deactivation activities, decontamination and decommissioning (D&D) of facilities, and environmental restoration (ER) activities. This document, prepared by Pacific Northwest Laboratory (PNL) under the direction of Westinghouse Hanford Company (WHC), describes the characteristics of the waste to be shipped to Hanford`s SWOC. The physical waste forms and hazardous constituents are described for the low-level mixed waste (LLMW) and the transuranic - transuranic mixed waste (TW{underscore}TRUM).

  1. 30 Years of Cryptographic Hardware Design Cetin Kaya Koc

    E-Print Network [OSTI]

    , and Adleman, and is described in [RiSO]. It was a single-chip nMOS design; using 4-micron design rules

  2. The EMC Effect Still Puzzles After 30 Years

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

    Higinbotham, Douglas W.; Miller, Gerald A.; Hen, Or; Rith, Klaus

    2013-05-01

    Thirty years ago, high-energy muons at CERN revealed the first hints of an effect that puzzles experimentalists and theorists alike to this day.

  3. New insights into microbial responses to oil spills from the Deepwater Horizon incident

    SciTech Connect (OSTI)

    Mason, O.U.; Hazen, T.C.

    2011-06-15

    On April 20, 2010, a catastrophic eruption of methane caused the Deepwater Horizon exploratory drill rig drilling the Macondo Well in Mississippi Canyon Block 252 (MC252) to explode. The Deepwater Horizon oil spill was unprecendeted for several reasons: the volume of oil released; the spill duration; the well depth; the distance from the shore-line (77 km or about 50 miles); the type of oil (light crude); and the injection of dispersant directly at the wellhead. This study clearly demonstrated that there was a profound and significant response by certain members of the in situ microbial community in the deep-sea in the Gulf of Mexico. In particular putative hydrocarbon degrading Bacteria appeared to bloom in response to the Deepwater Horizon oil spill, even though the temperature at these depths is never >5 C. As the plume aged the shifts in the microbial community on a temporal scale suggested that different, yet metabolically important members of the community were able to respond to a myriad of plume constituents, e.g. shifting from propane/ethane to alkanes and finally to methane. Thus, the biodegradation of hydrocarbons in the plume by Bacteria was a highly significant process in the natural attenuation of many compounds released during the Deepwater Horizon oil spill.

  4. Deepwater Horizon Study Finds Crude Oil Harmful to Bluefin, Yellowfin Tuna

    E-Print Network [OSTI]

    Grosell, Martin

    Deepwater Horizon Study Finds Crude Oil Harmful to Bluefin, Yellowfin Tuna This photo from April 24 sponsored by the National Oceanic and Atmospheric Administration, found that crude oil from the 2010 for 87 days, during which time it discharged nearly 5 million barrels of crude oil. Since the spill

  5. Decay of correlations for flows with unbounded roof function, including the infinite horizon planar

    E-Print Network [OSTI]

    Decay of correlations for flows with unbounded roof function, including the infinite horizon planar for studying nonuniformly hyperbolic flows with unbounded roof functions. In particular, we establish the decay of other classes of flows with unbounded roof functions. For geometric Lorenz attractors (in- cluding

  6. Decay of correlations for flows with unbounded roof function, including the infinite horizon planar

    E-Print Network [OSTI]

    Decay of correlations for flows with unbounded roof function, including the infinite horizon planar for studying nonuniformly hyperbolic flows with unbounded roof functions. In particular, we establish the decay of other classes of flows with unbounded roof functions. For geometric Lorenz attractors (in­ cluding

  7. The stability of Killing-Cauchy horizons in colliding plane wave space-times

    E-Print Network [OSTI]

    J. B. Griffiths

    2005-01-05

    It is confirmed rigorously that the Killing-Cauchy horizons, which sometimes occur in space-times representing the collision and subsequent interaction of plane gravitational waves in a Minkowski background, are unstable with respect to bounded perturbations of the initial waves, at least for the case in which the initial waves have constant aligned polarizations.

  8. DR. DONALD BOESCH NATIONAL COMMISSION ON THE BP DEEPWATER HORIZON OIL SPILL AND

    E-Print Network [OSTI]

    Boynton, Walter R.

    , as the rig's crew completed drilling the exploratory Macondo well deep under the waters of the Gulf of Mexico AND OFFSHORE DRILLING AND TERRY D. GARCIA NATIONAL COMMISSION ON THE BP DEEPWATER HORIZON OIL SPILL AND OFFSHORE DRILLING BEFORE THE COMMITTEE ON TRANSPORTATION AND INFRASTRUCTURE SUBCOMMITTEE ON COAST GUARD

  9. Draft Horizon 2020 Work Programme 2016-2017 in the area of

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    installation packages integrating renewable and energy efficiency solutions for heating, cooling and/or hot and Efficient Energy" Important notice: This paper is made public just before the adoption process of the work. The Commission expressly disclaims liability for any future changes of the content of this document. #12;HORIZON

  10. Tokyo Tech International Symposium New Horizon of Electronic Materials Using Abundant Elements

    E-Print Network [OSTI]

    University, Sweden) In Harmony with the Environment: New Materials Harnessing Nature's Energy Flows 14Tokyo Tech International Symposium New Horizon of Electronic Materials Using Abundant Elements Date Theoretical and Computational Approach to New Materials Date: 10:00-19:00, 4th June, 2015: Lecture Session 10

  11. Tracking Oil from the Deepwater Horizon Oil Spill in Barataria Bay Sediments 

    E-Print Network [OSTI]

    Dincer, Zeynep

    2013-05-03

    In April 2010, approximately 4.9 million barrels of oil were accidentally released into the Gulf of Mexico during the Deepwater Horizon Macondo Mc252 Oil Spill. Some of the surface oil was carried by prevailing winds and currents and reached...

  12. Estimating Surface Oil Extent from the Deepwater Horizon Oil Spill using ASCAT Backscatter

    E-Print Network [OSTI]

    Long, David G.

    Estimating Surface Oil Extent from the Deepwater Horizon Oil Spill using ASCAT Backscatter Richard Provo, UT 84602 Abstract--The damping effects of oil on capillary ocean waves alter the backscattered backscatter from the ocean surface uncontaminated by surface oil. Large differences between expected

  13. Draft Horizon 2020 Work Programme 2016-2017 in the area of Transport

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    of this document. #12;HORIZON 2020 - Work Programme 2016 - 2017 Smart, green and integrated transport Part 11 ......................................................................................................................... 11 MG-1.1-2016: Reducing energy consumption and environmental impact of aviation........ 12 MG-1................................................................................................................. 19 MG-2.1-2017: Innovations for energy efficiency and emission control in waterborne transport

  14. DeepwaterHorizonOilSpill DraftPhaseIIEarlyRestorationPlan

    E-Print Network [OSTI]

    Authority; Department of Environmental Quality; Department of Wildlife and Fisheries; Department of Natural) is a priceless national treasure. Its natural resources ­ water, fish, beaches, reefs, marshes, oil and gas Review Prepared by the Deepwater Horizon Natural Resource Trustees from State of Alabama (Department

  15. Proof of linear instability of the Reissner-Nordström Cauchy horizon under scalar perturbations

    E-Print Network [OSTI]

    Jonathan Luk; Sung-Jin Oh

    2015-01-19

    It has long been suggested that solutions to linear scalar wave equation $$\\Box_g\\phi=0$$ on a fixed subextremal Reissner-Nordstr\\"om spacetime with non-vanishing charge are generically singular at the Cauchy horizon. We prove that generic smooth and compactly supported initial data on a Cauchy hypersurface indeed give rise to solutions with infinite nondegenerate energy near the Cauchy horizon in the interior of the black hole. In particular, the solution generically does not belong to $W^{1,2}_{loc}$. This instability is related to the celebrated blue shift effect in the interior of the black hole. The problem is motivated by the strong cosmic censorship conjecture and it is expected that for the full nonlinear Einstein-Maxwell system, this instability leads to a singular Cauchy horizon for generic small perturbations of Reissner-Nordstr\\"om spacetime. Moreover, in addition to the instability result, we also show as a consequence of the proof that Price's law decay is generically sharp along the event horizon.

  16. One-Dimensional Infinite Horizon Nonconcave Optimal Control Problems Arising in Economic Dynamics

    SciTech Connect (OSTI)

    Zaslavski, Alexander J., E-mail: ajzasl@tx.technion.ac.il [Technion-Israel Institute of Technology, Department of Mathematics (Israel)

    2011-12-15

    We study the existence of optimal solutions for a class of infinite horizon nonconvex autonomous discrete-time optimal control problems. This class contains optimal control problems without discounting arising in economic dynamics which describe a model with a nonconcave utility function.

  17. ALICE: The Ultraviolet Imaging Spectrograph aboard the New Horizons Pluto-Kuiper Belt Mission

    E-Print Network [OSTI]

    Stern, S. Alan

    ABSTRACT The New Horizons ALICE instrument is a lightweight (4.4 kg), low-power (4.4 Watt) imaging-ALICE, for Pluto-ALICE) is a compact, low-cost instrument designed to perform spectroscopic investigations at Southwest Research Institute (SwRI) in the mid-1990s with funds from NASA, JPL, and SwRI1 . Later, the HIPPS

  18. The New Horizons GeometryVisualizer: Planning the Encounter with Pluto

    E-Print Network [OSTI]

    Throop, Henry

    institution: SwRI 2006 launch; 2015 Pluto #12;#12;#12;New Horizons iPhone Camera 1 MP 2 MP Storage 16 GB 16 GB the whole planet? · Designed as a `sandbox' for planning observations. · Not used to program commands into spacecraft. What does GV do? #12;GV Design Goals Priority 2: · Features · Ease of use · Speed · Ease

  19. Receding-horizon Supervisory Control of Green Buildings Truong X. Nghiem, George J. Pappas

    E-Print Network [OSTI]

    Pappas, George J.

    .S. Department of Energy. Consequently, there has been a growing interest in green buildings, i.e., energy]). For this reason, green buildings (i.e., energy-efficient buildings) have been of strong interest not onlyReceding-horizon Supervisory Control of Green Buildings Truong X. Nghiem, George J. Pappas

  20. Dynamic Pricing Strategies under a Finite Time Horizon Joan Morris DiMicco

    E-Print Network [OSTI]

    to scalpers. Cost has been perhaps the greatest factor precluding the widespread use of dynamic pricing goods, but in digital markets, the costs associated with making frequent, instantaneous price changesDynamic Pricing Strategies under a Finite Time Horizon Joan Morris DiMicco MIT Media Laboratory 20

  1. Navier-Stokes on Black Hole Horizons and DC Thermoelectric Conductivity

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2015-11-12

    Within the context of the AdS/CFT correspondence we show that the DC thermoelectric conductivity can be obtained by solving the linearised, time-independent and forced Navier-Stokes equations on the black hole horizon for an incompressible and charged fluid.

  2. Navier-Stokes on Black Hole Horizons and DC Thermoelectric Conductivity

    E-Print Network [OSTI]

    Donos, Aristomenis

    2015-01-01

    We consider a general class of black hole solutions of Einstein-Maxwell theory which are holographically dual to CFTs with spatially dependent sources. We show that an averaged DC thermoelectric conductivity matrix can be obtained by solving the forced, linearised, time-independent Navier-Stokes equations on the black hole horizon for an incompressible and charged fluid.

  3. Financement avec l'Europe: quel horizon pour l'UdeM ?

    E-Print Network [OSTI]

    Charette, André

    Financement avec l'Europe: quel horizon pour l'UdeM ? Midi-BRDV 15 mai 2014 Sophie Gauthier travail pour la subvention et 50 % de leur temps de travail en Europe · Consolidator Grant (objectif: 400 subvention et 50 % de son temps de travail en Europe · Advanced Grant (objectif: 200 pour 2014): ­ chercheur

  4. Thermodynamics of Apparent Horizon and Friedmann Equations in Big Bounce Universe

    E-Print Network [OSTI]

    Molin Liu; Yuling Yang; Jianbo Lv; Lixin Xu

    2014-12-08

    In this paper, the thermodynamics of apparent horizon and Friedmann equations are studied in a big bounce universe typified by a non-singular big bounce, as opposed to a singular big bang. This cosmological model can describe radiation dominated early universe and matter dominated late universe in FRW model. Our calculational results show that Einstein gravitational field equations could be derived by the first law of thermodynamics and the fluid's continuity equation. The connections between thermodynamics and gravity are observed in big bounce universe. In the late stages of cold and hot universes, the apparent horizons are convergent and the time when apparent horizons begin to bounce essentially in agreement with that of universe's scalar factor. In the early stage of both cold and hot universes, we find there is only one geometry containing a 4D de Sitter universe with general state parameter. Furthermore, we also find the form of apparent horizon in early universe is strongly dependent on the extra dimension which suggests that the effect of extra dimension could be found in early universe.

  5. The Practice of Cost Benefit Analysis in the Transport Sector a Mexican

    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| Open Energy Information Serbia-EnhancingEt Al., 2013) |InformationThe Needles Geothermal AreaTransportThe

  6. Energy information systems (EIS): Technology costs, benefit, and best practice uses

    E-Print Network [OSTI]

    Granderson, Jessica

    2014-01-01

    values from the US Energy Information Administration,Handbook of Web Based Energy Information and ControlNew Jersey: Erlbaum. Energy Information Administration (

  7. High-Speed Rail in California: A Cost-Benefit Analysis

    E-Print Network [OSTI]

    Kockelman, Kara

    1994-01-01

    1 . Specific Aspects of High-Speed Rail in Connection with A993. The Development Effects of High-Speed Rail Stations and1 989. Texas Triangle High Speed Rail Study. Houston, TX:

  8. The Welfare Implications of Oil Privatisation: A Cost-Benefit Analysis of Norway's Statoil

    E-Print Network [OSTI]

    Wolf, C.; Pollitt, Michael G.

    producing position on the NCS, all of Statoil’s sales markets have long been competitive: its crude oil production is exported onto the world market, its refined oil products and petrochemicals compete for market share in Scandinavia, the Baltics... sample of global oil privatisations (Wolf 2008b; Wolf and Pollitt 2008)3 – but also relevant 1 For supporters of private markets public ownership per se results in lower economic efficiency; control...

  9. A Proposed Cost-Benefit Analysis Approach for Evaluating DOE Nuclear Facility Design Options

    Broader source: Energy.gov [DOE]

    Presenter: Dr. Kamiar Jamali, Senior Technical Advisor to the Chief of Defense Nuclear Safety, National Nuclear Security Administration, Office of Nuclear Safety NA-SH

  10. Decision matrix for liquid loading in gas wells for cost/benefit analyses of lifting options 

    E-Print Network [OSTI]

    Park, Han-Young

    2008-10-10

    Field-proven solutions already exist to reduce the loss of gas production when liquid loading begins to occur. However, the choice of remedial technique, its feasibility, and its cost, vary considerably depending on a ...

  11. A cost benefit analysis of employee assistance programs and health promotion programs 

    E-Print Network [OSTI]

    Sykora, Ellen M

    2013-02-22

    For many years business has been searching for ways to make companies more profitable. Some programs that many businesses have implemented in order to increase profits are Employee Assistance Programs (EAPs) and Health Promotion Programs (HPPs...

  12. A cost/benefit model for insertion of technological innovation into a total quality management program 

    E-Print Network [OSTI]

    Ratliff, William L

    1997-01-01

    This study provides economic justification for insertion of technological innovation into a total quality management (TQM) program in a remanufacturing environment. One of the core principles of TQM is continuous improvement. A preferred metric...

  13. Energy information systems (EIS): Technology costs, benefit, and best practice uses

    SciTech Connect (OSTI)

    Granderson, Jessica; Lin, Guanjing; Piette, Mary Ann

    2013-11-26

    Energy information systems are the web-based software, data acquisition hardware, and communication systems used to store, analyze, and display building energy data. They often include analysis methods such as baselining, benchmarking, load profiling, and energy anomaly detection. This report documents a large-scale assessment of energy information system (EIS) uses, costs, and energy benefits, based on a series of focused case study investigations that are synthesized into generalizable findings. The overall objective is to provide organizational decision makers with the information they need to make informed choices as to whether or not to invest in an EIS--a promising technology that can enable up to 20 percent site energy savings, quick payback, and persistent low-energy performance when implemented as part of best-practice energy management programs.

  14. Ownership Unbuilding in Electricity Markets - A Social Cost Benefit Analysis of the German TSO'S

    E-Print Network [OSTI]

    Brunekreeft, Gert

    available capacity, we regard these as indirect effects. Note that the competition effect would typically be beneficial; we deal with the cost-side of higher CAPEX associated with additional capacity (the flip side of the same coin) in section 3...

  15. Aqueous nitrate waste treatment: Technology comparison, cost/benefit, and market analysis

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    The purpose of this analysis is to provide information necessary for the Department of Energy (DOE) to evaluate the practical utility of the Nitrate to Ammonia and Ceramic or Glass (NAC/NAG/NAX) process, which is under development in the Oak Ridge National Laboratory. The NAC/NACx/NAX process can convert aqueous radioactive nitrate-laden waste to a glass, ceramic, or grout solid waste form. The tasks include, but are not limited to, the following: Identify current commercial technologies to meet hazardous and radiological waste disposal requirements. The technologies may be thermal or non-thermal but must be all inclusive (i.e., must convert a radionuclide-containing nitrate waste with a pH around 12 to a stable form that can be disposed at permitted facilities); evaluate and compare DOE-sponsored vitrification, grouting, and minimum additive waste stabilization projects for life-cycle costs; compare the technologies above with respect to material costs, capital equipment costs, operating costs, and operating efficiencies. For the NAC/NAG/NAX process, assume aluminum reactant is government furnished and ammonia gas may be marketed; compare the identified technologies with respect to frequency of use within DOE for environmental management applications with appropriate rationale for use; Assess the potential size of the DOE market for the NAC/NAG/NAX process; assess and off-gas issues; and compare with international technologies, including life-cycle estimates.

  16. Energy information systems (EIS): Technology costs, benefit, and best practice uses

    E-Print Network [OSTI]

    Granderson, Jessica

    2014-01-01

    interviews, and gathering energy and cost data. Similarly,EIS? 2. What are the energy- and cost-savings benefits of anEIS? Quantifying the energy and cost-savings benefits

  17. Energy savings estimates and cost benefit calculations for high performance relocatable classrooms

    E-Print Network [OSTI]

    Rainer, Leo I.; Hoeschele, Marc A.; Apte, Michael G.; Shendell, Derek G.; Fisk, William J.

    2003-01-01

    23 Table 8: Annual HVAC Source Energy, Cost, and SavingsHVAC Source Energy, Cost, &Savings Projections.. 258: Annual HVAC Source Energy, Cost, and Savings Projections

  18. Energy information systems (EIS): Technology costs, benefit, and best practice uses

    E-Print Network [OSTI]

    Granderson, Jessica

    2014-01-01

    as part of best-practice energy management programs.EIS Benefits and Best Practices Energy information systemsas part of best-practice energy management programs [

  19. Energy savings estimates and cost benefit calculations for high performance relocatable classrooms

    E-Print Network [OSTI]

    Rainer, Leo I.; Hoeschele, Marc A.; Apte, Michael G.; Shendell, Derek G.; Fisk, William J.

    2003-01-01

    mount heat pump (HPAC) and an advanced hybrid HVAC systemheat pumps (HPAC) were installed in parallel with the advanced hybridheat pump system (HPAC), the HPCBS RCs utilize an advanced hybrid

  20. COST-BENEFIT ANALYSIS OF A WASTE TO ENERGY PLANT FOR MONTEVIDEO; AND WASTE TO

    E-Print Network [OSTI]

    Columbia University

    period of 23 years, the cost of capital for this plant should #12;3 be lower than 3.1% including revenues from carbon credits. If the cost of capital for the government is 6%, then, in order to recover owned, the cost of capital will most likely be higher than for the government. The financial analysis

  1. Cost-benefit analysis of aircraft design for environment using a fleet perspective and real options

    E-Print Network [OSTI]

    Hynes, Christopher Dennis

    2005-01-01

    Traditional multidisciplinary design optimization (MDO) approaches do not examine the costs associated with damage due to environmental factors and are usually implemented to examine one aircraft. The Environmental Design ...

  2. Aqueous-stream uranium-removal technology cost/benefit and market analysis

    SciTech Connect (OSTI)

    1994-03-01

    The primary purpose of this report is to present information that was gathered by Kapline Enterprises, Inc. (KEI) in order to help the Department of Energy (DOE) determine the merit of continued biosorption research funding. However, in the event that funding is continued, it is also intended to help the researchers in their efforts to develop a better uranium-removal process. This report (1) provides a comparison of DOE sites that may utilize aqueous-stream, uranium-removal biosorption technology, (2) presents a comparison of the biosorption and ion exchange processes, and (3) establishes performance criteria by which the project can be measured. It also attempts to provide focus for biosorbent ground-water-remediation research and to ask questions that need to be answered. This report is primarily a study of the US market for technologies that remove uranium from aqueous streams, but it also addresses the international market-particularly for Germany. Because KEI`s access to international market information is extremely limited, the material presented in this report represents a best effort to obtain this data. Although uranium-contaminated aqueous streams are a problem in other countries as well, the scope of this report is primarily limited to the US and Germany for two reasons: (1) Germany is the country of the biosorbent-CRADA partner and (2) time constraints.

  3. Strategic philanthropy for cyber security : an extended cost-benefit analysis framework to study cybersecurity

    E-Print Network [OSTI]

    Cho, Yiseul

    2012-01-01

    The international climate of cyber security is dramatically changing and thus unpredictable. As such, agile yet sustainable solutions are needed, along with an effective and a pragmatic evaluation framework to assess and ...

  4. Cost-benefit analysis of ultra-low sulfur jet fuel

    E-Print Network [OSTI]

    Kuhn, Stephen (Stephen Richard)

    2010-01-01

    The growth of aviation has spurred increased study of its environmental impacts and the possible mitigation thereof. One emissions reduction option is the introduction of an Ultra Low Sulfur (ULS) jet fuel standard for ...

  5. Energy savings estimates and cost benefit calculations for high performance relocatable classrooms

    E-Print Network [OSTI]

    Rainer, Leo I.; Hoeschele, Marc A.; Apte, Michael G.; Shendell, Derek G.; Fisk, William J.

    2003-01-01

    impact on the advanced hybrid heating use. Initially, in thenot be operating. The advanced hybrid heating data indicatedegrees F) Avg Hybrid Heating 70.1 Hybrid Cooling 70.2 HPAC

  6. Cost-Benefit Analysis of Plug-in Hybrid Electric Vehicle Technology

    SciTech Connect (OSTI)

    Simpson, A.

    2006-11-01

    This paper presents a comparison of vehicle purchase and energy costs, and fuel-saving benefits of plug-in hybrid electric vehicles relative to hybrid electric and conventional vehicles.

  7. Plug-in Hybrid Modeling and Application: Cost/Benefit Analysis (Presentation)

    SciTech Connect (OSTI)

    Simpson, A.

    2006-08-24

    Presents data from a simulation of plug-in hybrid electric vehicle efficiency and cost, including baseline vehicle assumptions, powertrain technology scenarios, and component modeling.

  8. A Cost Benefit Analysis of the Application of Biochar in the Scottish Whisky Industry 

    E-Print Network [OSTI]

    Messenger, Simon P

    2009-01-01

    Biochar is a carbon-negative process (Mathews, 2008) with large environmental credentials which is capable of sequestering vast amounts of carbon into the soil pool. Under the Kyoto Protocol, Biochar could one day be ...

  9. Energy information systems (EIS): Technology costs, benefit, and best practice uses

    E-Print Network [OSTI]

    Granderson, Jessica

    2014-01-01

    in Case Investigations Technology Costs Up-front Costs:in the study to address technology costs EIS Energy and CostAppendix C: EIS Technology Costs This appendix contains a

  10. Cost Benefit Analysis Modeling Tool for Electric vs. ICE Airport Ground Support Equipment – Development and Results

    SciTech Connect (OSTI)

    James Francfort; Kevin Morrow; Dimitri Hochard

    2007-02-01

    This report documents efforts to develop a computer tool for modeling the economic payback for comparative airport ground support equipment (GSE) that are propelled by either electric motors or gasoline and diesel engines. The types of GSE modeled are pushback tractors, baggage tractors, and belt loaders. The GSE modeling tool includes an emissions module that estimates the amount of tailpipe emissions saved by replacing internal combustion engine GSE with electric GSE. This report contains modeling assumptions, methodology, a user’s manual, and modeling results. The model was developed based on the operations of two airlines at four United States airports.

  11. Improving the Practice of Cost Benefit Analysis in Transport | 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 on QA:QAsource History View NewTexas: Energy Resources

  12. Cost benefit analysis for the implementation of smart metering with pilot

    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 E LISTStar EnergyLawler,CoalConcordiaConsumer ConnectionCoralCorvalenceCosoCost

  13. Cost-Benefit Analysis of Plug-In Hybrid Electric Vehicle Technology | Open

    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 ECoopButtePower Ventures JumpCommercialRenewableGlobalTechnologytemperature,OpenEnergy

  14. Cost-Benefit Analysis of Smart Grid Technologies Through System Simulations

    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 ECoopButtePower Ventures JumpCommercialRenewableGlobalTechnologytemperature,OpenEnergy|

  15. String-theoretic breakdown of effective field theory near black hole horizons

    E-Print Network [OSTI]

    Dodelson, Matthew

    2015-01-01

    We investigate the validity of the equivalence principle near horizons in string theory, analyzing the breakdown of effective field theory caused by longitudinal string spreading effects. An experiment is set up where a detector is thrown into a black hole a long time after an early infalling string. Light cone gauge calculations, taken at face value, indicate a detectable level of root-mean-square longitudinal spreading of the initial string as measured by the late infaller. This results from the large relative boost between the string and detector in the near horizon region, which develops automatically despite their modest initial energies outside the black hole and the weak curvature in the geometry. We subject this scenario to basic consistency checks, using these to obtain a relatively conservative criterion for its detectability. In a companion paper, we exhibit longitudinal nonlocality in well-defined gauge-invariant S-matrix calculations, obtaining results consistent with the predicted spreading albe...

  16. Solar Wind at 33 AU: Setting Bounds on the Pluto Interaction for New Horizons

    E-Print Network [OSTI]

    Bagenal, F; Elliott, H A; Hill, M E; Lisse, C M; McComas, D J; McNutt,, R L; Richardson, J D; Smith, C W; Strobel, D F

    2015-01-01

    The NASA New Horizons spacecraft flies past Pluto on July 14, 2015, carrying two instruments that detect charged particles. Pluto has a tenuous, extended atmosphere that is escaping the weak gravity of the planet. The interaction of the solar wind with the escaping atmosphere of Pluto depends on solar wind conditions as well as the vertical structure of the atmosphere. We have analyzed Voyager 2 particles and fields measurements between 25 and 39 AU and present their statistical variations. We have adjusted these predictions to allow for the declining activity of the Sun and solar wind output. We summarize the range of SW conditions that can be expected at 33 AU and survey the range of scales of interaction that New Horizons might experience. Model estimates for the solar wind stand-off distance vary from approximately 7 to 1000 RP with our best estimate being around 40 RP (where we take the radius of Pluto to be RP=1184 km).

  17. Hamilton-Jacobi Tunneling Method for Dynamical Horizons in Different Coordinate Gauges

    E-Print Network [OSTI]

    Roberto Di Criscienzo; Sean A. Hayward; Mario Nadalini; Luciano Vanzo; Sergio Zerbini

    2009-12-03

    Previous work on dynamical black hole instability is further elucidated within the Hamilton-Jacobi method for horizon tunneling and the reconstruction of the classical action by means of the null-expansion method. Everything is based on two natural requirements, namely that the tunneling rate is an observable and therefore it must be based on invariantly defined quantities, and that coordinate systems which do not cover the horizon should not be admitted. These simple observations can help to clarify some ambiguities, like the doubling of the temperature occurring in the static case when using singular coordinates, and the role, if any, of the temporal contribution of the action to the emission rate. The formalism is also applied to FRW cosmological models, where it is observed that it predicts the positivity of the temperature naturally, without further assumptions on the sign of the energy.

  18. New Cosmologies on the Horizon. Cosmology and Holography in bigravity and massive gravity

    SciTech Connect (OSTI)

    Tolley, Andrew James

    2013-03-31

    The goal of this research program is to explore the cosmological dynamics, the nature of cosmological and black hole horizons, and the role of holography in a new class of infrared modified theories of gravity. This will capitalize of the considerable recent progress in our understanding of the dynamics of massive spin two fields on curved spacetimes, culminating in the formulation of the first fully consistent theories of massive gravity and bigravity/bimetric theories.

  19. Fate and Speciation of Gasoline-Derived Lead in Organic Horizons of the Northeastern USA

    SciTech Connect (OSTI)

    Kaste,J.; Bostick, B.; Friedland, A.; Schroth, A.; Siccama, T.

    2006-01-01

    Although legislation in the late 1970s significantly reduced atmospheric lead (Pb) inputs to ecosystems in North America, organic (O) horizons in forests of the northeastern USA still contain up to 30 kg of gasoline-derived Pb ha{sup -1}. The residence time, geochemical behavior, and fate of this contaminant Pb in soils is poorly understood. Here we use forest floor time series data and synchrotron-based X-ray techniques to examine the mobility and speciation of Pb in O horizons collected from remote sites across the northeastern USA. At high elevation (>800 m) sites in Vermont and New York, samples collected from similar locations in 1980, 1990, and early 2000 had indistinguishable Pb contents, ranging ({+-}1{sigma}) from 11 to 29 kg Pb ha{sup -1}. However, at lower elevation and lower latitude sites with mixed vegetation, significant decreases in Pb amount were observed during the two-decade study period. Lower elevation sites ranged from 10 to 20 kg Pb ha{sup -1} in 1980, and from 2 to 10 kg Pb ha{sup -1} 20 yr later. Lead-enriched soil grains were determined to be amorphous with microfocused X-ray diffraction, and Pb concentrations correlated well with Fe on maps generated via microfocused X-ray fluorescence. Bulk Pb L{sub III}-edge X-ray absorption spectroscopy of coniferous O horizon samples indicate that Pb is binding to iron-rich soil particles by inner-sphere complexes, most likely to amorphous Fe oxides. Based on our paired regional and microscopic observations, we conclude that Pb is strongly retained in well-drained O horizons, and mobility is governed by decomposition and colloidal transport.

  20. Deepwater Horizon Oil Spill Principal Investigator (PI) Conference Sponsored by the NSTC SOST, hosted by the University of South Florida

    E-Print Network [OSTI]

    Meyers, Steven D.

    Deepwater Horizon Oil Spill Principal Investigator (PI) Conference Sponsored Ballroom · Oil/dispersant - extent and fate Tom Ryerson, National Oceanic and Atmospheric Administration · Oil/dispersant - impacts and mitigation in coastal

  1. IMAGING THE SUPERMASSIVE BLACK HOLE SHADOW AND JET BASE OF M87 WITH THE EVENT HORIZON TELESCOPE

    E-Print Network [OSTI]

    Lu, Ru-Sen

    The Event Horizon Telescope (EHT) is a project to assemble a Very Long Baseline Interferometry (VLBI) network of millimeter wavelength dishes that can resolve strong field general relativistic signatures near a supermassive ...

  2. Horizon Sensor™

    Office of Energy Efficiency and Renewable Energy (EERE)

    Future mining will be from deeper and thinner seams; profiles of deep coal seams reveal multiple levels of coal and sediment strata or layers. Some of these layers contain greater levels of...

  3. Noise Kernel for Self-similar Tolman Bondi Metric: Fluctuations on Cauchy Horizon

    E-Print Network [OSTI]

    Seema Satin; Kinjalk Lochan; Sukratu Barve

    2013-04-12

    We attempt to calculate the point separated Noise Kernel for self similar Tolman Bondi metric, using a method similar to that developed by Eftekharzadeh et. al for ultra-static spacetimes referring to the work by Page. In case of formation of a naked singularity, the Noise Kernel thus obtained is found to be regular except on the Cauchy horizon, where it diverges. The behavior of the noise in case of the formation of a covered singularity is found to be regular. This result seemingly renders back reaction non-negligible which questions the stability of the results obtained from the semiclassical treatment of the self similar Tolman Bondi metric.

  4. Pedagogical notes on black holes, de Sitter space, and bifurcated horizons

    E-Print Network [OSTI]

    Tom Banks

    2010-07-22

    I discuss black hole evaporation in two different coordinate systems and argue that the results of the two are compatible once one takes the holographic principle into account. de Sitter space is then discussed along similar lines. Finally I make some remarks about smooth initial conditions in GR, which evolve to space-times with bifurcate horizons, and emphasize the care one must take in identifying spaces of solutions of General Relativity which belong to the same quantum theory of gravity. No really new material is presented, but the point of view I take on all 3 subjects is not widely appreciated.

  5. Chern--Simons--Yang--Mills system in presence of Gribov horizon with fundamental Higgs matter

    E-Print Network [OSTI]

    Arturo J. Gomez; Sebastian Gonzalez; Silvio P. Sorella

    2015-09-29

    In this work we study the behaviour of Yang--Mills--Chern--Simons theory coupled to a Higgs field in the fundamental representation by taking into account the effects of the presence of the Gribov horizon. By analyzing the infrared structure of the gauge field propagator, both confined and de-confined regions can be detected. The confined region corresponds to the appearance of complex poles in the propagators, while the de-confined one to the presence of real poles. One can move from one region to another by changing the parameters of the theory.

  6. Hagedorn String Thermodynamics in Curved Spacetimes and near Black Hole Horizons

    E-Print Network [OSTI]

    Thomas G. Mertens

    2015-06-25

    This thesis concerns the study of high-temperature string theory on curved backgrounds, generalizing the notions of Hagedorn temperature and thermal scalar to general backgrounds. Chapter 2 contains a review on string thermodynamics in flat space, setting the stage. Chapters 3 and 4 contain the detailed study of the random walk picture in a general curved background. Chapters 5 and 6 then apply this to Rindler space, the near-horizon approximation of a generic (uncharged) black hole. Chapters 7 and 8 contain a study of the AdS3 and BTZ WZW models where we study the thermal spectrum and the resulting random walk picture that emerges. Chapters 9 and 10 attempt to draw general conclusions from the study of the two specific examples earlier: we draw lessons on string thermodynamics in general and on (perturbative) string thermodynamics around black hole horizons. For the latter, we point out a possible link to the firewall paradox. Finally, chapter 11 contains a detailed discussion on the near-Hagedorn (and high-energy) stress tensor in a generic spacetime, the results of which are applied to provide a description of the Bekenstein-Hawking entropy in terms of long string equilibration.

  7. The New Horizons Pluto Kuiper belt Mission: An Overview with Historical Context

    E-Print Network [OSTI]

    S. Alan Stern

    2007-09-27

    NASA's New Horizons (NH) Pluto-Kuiper belt (PKB) mission was launched on 19 January 2006 on a Jupiter Gravity Assist (JGA) trajectory toward the Pluto system for a 14 July 2015 closest approach; Jupiter closest approach occurred on 28 February 2007. It was competitively selected by NASA for development on 29 November 2001. New Horizons is the first mission to the Pluto system and the Kuiper belt; and will complete the reconnaissance of the classical planets. The ~400 kg spacecraft carries seven scientific instruments, including imagers, spectrometers, radio science, a plasma and particles suite, and a dust counter built by university students. NH will study the Pluto system over a 5-month period beginning in early 2015. Following Pluto, NH will go on to reconnoiter one or two 30-50 kilometer diameter Kuiper belt Objects (KBOs), if NASA approves an extended mission. If successful, NH will represent a watershed development in the scientific exploration of a new class of bodies in the solar system - dwarf planets, of worlds with exotic volatiles on their surfaces, of rapidly (possibly hydrodynamically) escaping atmospheres, and of giant impact derived satellite systems. It will also provide the first dust density measurements beyond 18 AU, cratering records that shed light on both the ancient and present-day KB impactor population down to tens of meters, and a key comparator to the puzzlingly active, former dwarf planet (now satellite of Neptune) called Triton, which is as large as Eris and Pluto.

  8. Microbial gene functions enriched in the Deepwater Horizon deep-sea oil plume

    SciTech Connect (OSTI)

    Lu, Z.; Deng, Y.; Nostrand, J.D. Van; He, Z.; Voordeckers, J.; Zhou, A.; Lee, Y.-J.; Mason, O.U.; Dubinsky, E.; Chavarria, K.; Tom, L.; Fortney, J.; Lamendella, R.; Jansson, J.K.; D?haeseleer, P.; Hazen, T.C.; Zhou, J.

    2011-06-15

    The Deepwater Horizon oil spill in the Gulf of Mexico is the deepest and largest offshore spill in U.S. history and its impacts on marine ecosystems are largely unknown. Here, we showed that the microbial community functional composition and structure were dramatically altered in a deep-sea oil plume resulting from the spill. A variety of metabolic genes involved in both aerobic and anaerobic hydrocarbon degradation were highly enriched in the plume compared to outside the plume, indicating a great potential for intrinsic bioremediation or natural attenuation in the deep-sea. Various other microbial functional genes relevant to carbon, nitrogen, phosphorus, sulfur and iron cycling, metal resistance, and bacteriophage replication were also enriched in the plume. Together, these results suggest that the indigenous marine microbial communities could play a significant role in biodegradation of oil spills in deep-sea environments.

  9. Gödel black hole, closed timelike horizon, and the study of particle emissions

    E-Print Network [OSTI]

    Sourav Bhattacharya; Anirban Saha

    2010-07-22

    We show that a particle, with positive orbital angular momentum, following an outgoing null/timelike geodesic, shall never reach the closed timelike horizon (CTH) present in the $(4+1)$-dimensional rotating G\\"{o}del black hole space-time. Therefore a large part of this space-time remains inaccessible to a large class of geodesic observers, depending on the conserved quantities associated with them. We discuss how this fact and the existence of the closed timelike curves present in the asymptotic region make the quantum field theoretic study of the Hawking radiation, where the asymptotic observer states are a pre-requisite, unclear. However, the semiclassical approach provides an alternative to verify the Smarr formula derived recently for the rotating G\\"{o}del black hole. We present a systematic analysis of particle emissions, specifically for scalars, charged Dirac spinors and vectors, from this black hole via the semiclassical complex path method.

  10. Formation of bubbly horizon in liquid-saturated porous medium by surface temperature oscillation

    E-Print Network [OSTI]

    Goldobin, Denis S

    2015-01-01

    We study non-isothermal diffusion transport of a weakly-soluble substance in a liquid-saturated porous medium being in contact with the reservoir of this substance. The surface temperature of the porous medium half-space oscillates in time, which results in a decaying solubility wave propagating deep into the porous medium. In such a system, the zones of saturated solution and non-dissolved phase coexist with the zones of undersaturated solution. The effect is firstly considered for the case of annual oscillation of the surface temperature of water-saturated ground being in contact with atmosphere. We reveal the phenomenon of formation of a near-surface bubbly horizon due to the temperature oscillation. An analytical theory of the phenomenon is developed. Further, the treatment is extended to the case of higher frequency oscillations and case of weakly-soluble solids and liquids.

  11. Formation of bubbly horizon in liquid-saturated porous medium by surface temperature oscillation

    E-Print Network [OSTI]

    Denis S. Goldobin; Pavel V. Krauzin

    2015-10-08

    We study non-isothermal diffusion transport of a weakly-soluble substance in a liquid-saturated porous medium being in contact with the reservoir of this substance. The surface temperature of the porous medium half-space oscillates in time, which results in a decaying solubility wave propagating deep into the porous medium. In such a system, the zones of saturated solution and non-dissolved phase coexist with the zones of undersaturated solution. The effect is firstly considered for the case of annual oscillation of the surface temperature of water-saturated ground being in contact with atmosphere. We reveal the phenomenon of formation of a near-surface bubbly horizon due to the temperature oscillation. An analytical theory of the phenomenon is developed. Further, the treatment is extended to the case of higher frequency oscillations and case of weakly-soluble solids and liquids.

  12. Black Hole spin dependence of general relativistic multi-transonic accretion close to the horizon

    E-Print Network [OSTI]

    Tapas K. Das; Sankhasubhra Nag; Swathi Hegde; Sourav Bhattacharya; Ishita Maity; Bozena Czerny; Paramita Barai; Paul J. Wiita; Vladimir Karas; Tapan Naskar

    2014-12-31

    We introduce a novel formalism to investigate the role of the spin angular momentum of astrophysical black holes in influencing the behaviour of low angular momentum general relativistic accretion. We propose a metric independent analysis of axisymmetric general relativistic flow, and consequently formulate the space and time dependent equations describing the general relativistic hydrodynamic accretion flow in the Kerr metric. The associated stationary critical solutions for such flow equations are provided and the stability of the stationary transonic configuration is examined using an elegant linear perturbation technique. We examine the properties of infalling material for both prograde and retrograde accretion as a function of the Kerr parameter at extremely close proximity to the event horizon. Our formalism can be used to identify a new spectral signature of black hole spin, and has the potential of performing the black hole shadow imaging corresponding to the low angular momentum accretion flow.

  13. Hot Plasma Modes Across Reissner-Nordstrom de Sitter Horizon in a Veselago Medium

    E-Print Network [OSTI]

    Ifra Noureen; Hafiza Rizwana Kausar

    2015-09-11

    In this manuscript, wave attributes of hot plasma around Reissner- Nordstrom-de Sitter (RN-dS) metric in a Veselago medium are in- vestigated. General relativistic magnetohydrodynamical (GRMHD) equations in planar coordinates for the RN-dS horizon are reformulated by implementation of ADM 3+1 technique. Further, perturba- tion scheme is used to arrive at linearly perturbed GRMHD equations whose component form is used to attain dispersion relations for rotating (non-magnetized and magnetized) plasma. Wave propagation in hot plasma is explained by three dimensional graphical representation of the wave number, refractive index, its change with respect to angular velocity, phase and group velocities. Finally, comparison of wave properties is presented, results reassert the presence of Veselago medium.

  14. Hot Plasma Modes Across Reissner-Nordstrom de Sitter Horizon in a Veselago Medium

    E-Print Network [OSTI]

    Noureen, Ifra

    2015-01-01

    In this manuscript, wave attributes of hot plasma around Reissner- Nordstrom-de Sitter (RN-dS) metric in a Veselago medium are in- vestigated. General relativistic magnetohydrodynamical (GRMHD) equations in planar coordinates for the RN-dS horizon are reformulated by implementation of ADM 3+1 technique. Further, perturba- tion scheme is used to arrive at linearly perturbed GRMHD equations whose component form is used to attain dispersion relations for rotating (non-magnetized and magnetized) plasma. Wave propagation in hot plasma is explained by three dimensional graphical representation of the wave number, refractive index, its change with respect to angular velocity, phase and group velocities. Finally, comparison of wave properties is presented, results reassert the presence of Veselago medium.

  15. The Pluto system: Initial results from its exploration by New Horizons

    E-Print Network [OSTI]

    Stern, S A; Ennico, K; Gladstone, G R; Grundy, W M; McKinnon, W B; Moore, J M; Olkin, C B; Spencer, J R; Weaver, H A; Young, L A; Andert, T; Andrews, J; Banks, M; Bauer, B; Bauman, J; Barnouin, O S; Bedini, P; Beisser, K; Beyer, R A; Bhaskaran, S; Binzel, R P; Birath, E; Bird, M; Bogan, D J; Bowman, A; Bray, V J; Brozovic, M; Bryan, C; Buckley, M R; Buie, M W; Buratti, B J; Bushman, S S; Calloway, A; Carcich, B; Cheng, A F; Conard, S; Conrad, C A; Cook, J C; Cruikshank, D P; Custodio, O S; Ore, C M Dalle; Deboy, C; Dischner, Z J B; Dumont, P; Earle, A M; Elliott, H A; Ercol, J; Ernst, C M; Finley, T; Flanigan, S H; Fountain, G; Freeze, M J; Greathouse, T; Green, J L; Guo, Y; Hahn, M; Hamilton, D P; Hamilton, S A; Hanley, J; Harch, A; Hart, H M; Hersman, C B; Hill, A; Hill, M E; Hinson, D P; Holdridge, M E; Horanyi, M; Howard, A D; Howett, C J A; Jackman, C; Jacobson, R A; Jennings, D E; Kammer, J A; Kang, H K; Kaufmann, D E; Kollmann, P; Krimigis, S M; Kusnierkiewicz, D; Lauer, T R; Lee, J E; Lindstrom, K L; Linscott, I R; Lisse, C M; Lunsford, A W; Mallder, V A; Martin, N; McComas, D J; McNutt, R L; Mehoke, D; Mehoke, T; Melin, E D; Mutchler, M; Nelson, D; Nimmo, F; Nunez, J I; Ocampo, A; Owen, W M; Paetzold, M; Page, B; Parker, A H; Parker, J W; Pelletier, F; Peterson, J; Pinkine, N; Piquette, M; Porter, S B; Protopapa, S; Redfern, J; Reitsema, H J; Reuter, D C; Roberts, J H; Robbins, S J; Rogers, G; Rose, D; Runyon, K; Retherford, K D; Ryschkewitsch, M G; Schenk, P; Schindhelm, E; Sepan, B; Showalter, M R; Singer, K N; Soluri, M; Stanbridge, D; Steffl, A J; Strobel, D F; Stryk, T; Summers, M E; Szalay, J R; Tapley, M; Taylor, A; Taylor, H; Throop, H B; Tsang, C C C; Tyler, G L; Umurhan, O M; Verbiscer, A J; Versteeg, M H; Vincent, M; Webbert, R; Weidner, S; Weigle, G E; White, O L; Whittenburg, K; Williams, B G; Williams, K; Williams, S; Woods, W W; Zangari, A M; Zirnstein, E

    2015-01-01

    The Pluto system was recently explored by NASA's New Horizons spacecraft, making closest approach on 14 July 2015. Pluto's surface displays diverse landforms, terrain ages, albedos, colors, and composition gradients. Evidence is found for a water-ice crust, geologically young surface units, surface ice convection, wind streaks, volatile transport, and glacial flow. Pluto's atmosphere is highly extended, with trace hydrocarbons, a global haze layer, and a surface pressure near 10 microbars. Pluto's diverse surface geology and long-term activity raise fundamental questions about how small planets remain active many billions of years after formation. Pluto's large moon Charon displays tectonics and evidence for a heterogeneous crustal composition, its north pole displays puzzling dark terrain. Small satellites Hydra and Nix have higher albedos than expected.

  16. Lyapunov exponents and anomalous diffusion of a Lorentz gas with infinite horizon using approximate zeta functions

    SciTech Connect (OSTI)

    Dahlqvist, P. [Royal Inst. of Technology, Stockholm (Sweden)

    1996-08-01

    We compute the Lyapunov exponent, the generalized Lyapunov exponents, and the diffusion constant for a Lorentz gas on a square lattice, thus having infinite horizon. Approximate zeta functions, written in terms of probabilities rather than periodic orbits, are used in order to avoid the convergence problems of cycle expansions. The emphasis is on the relaxation between the analytic structure of the zeta function, where a branch cut plays an important role, and the asymptotic dynamics of the system. The Lyapunov exponent for the corresponding map agrees with the conjectured limit {lambda}{sub map}=-2 log(R) + C + O(R) and we derive an approximate value for the constant C in good agreement with numerical simulations. We also find a diverging diffusion constant D(t){approx}log t and a phase transition for the generalized Lyapunov exponents.

  17. New black holes of vacuum Einstein equations with hyperscaling violation and Nil geometry horizons

    E-Print Network [OSTI]

    Mokhtar Hassaine

    2015-03-05

    In this paper, we present a new solution of the vacuum Einstein equations in five dimensions which is a static black hole with hyperscaling violation and with a three-dimensional horizon modeled by one the eight Thurston geometries, namely the Nil geometry. This homogeneous geometry is non-trivial in the sense that it is neither of constant curvature nor a product of constant curvature manifolds. Using the Hamiltonian formalism, we identify the mass and entropy of the black hole solution. Curiously enough, in spite of the fact that the entropy turns to be negative, the mass is positive and the first law of thermodynamics holds. We also discuss the extension in higher dimension.

  18. 14] L. De Floriani and P. Magillo, \\Horizon computation on a hierarchical triangulated terrain model", Visual Comput., vol. 11, pp. 134{149, 1995.

    E-Print Network [OSTI]

    Stewart, James

    , \\Shadows for bump-mapped surfaces", in Advanced Computer Graphics (Proceedings of Computer Graphics Tokyo. Hershberger, \\Finding the upper envelope of n line segments in O(nlogn) time", Inform. Process. Lett., vol. 33. The horizon computation can also be used to build horizon maps that are used in conjunction with bump maps

  19. [14] L. De Floriani and P. Magillo, ``Horizon computation on a hierarchical triangulated terrain model'', Visual Comput., vol. 11, pp. 134--149, 1995.

    E-Print Network [OSTI]

    Stewart, James

    . Max, ``Shadows for bump­mapped surfaces'', in Advanced Computer Graphics (Proceedings of Computer, pp. 92--99. [10] J. Hershberger, ``Finding the upper envelope of n line segments in O(n log n) time input to a progressive radiosity algorithm. The horizon computation can also be used to build horizon

  20. Monitoring and Assessing Implications of the Deepwater Horizon Oil Spill: Potential Impacts of the Loop Current on Downstream Marine Ecosystems in the

    E-Print Network [OSTI]

    Monitoring and Assessing Implications of the Deepwater Horizon Oil Spill: Potential Impacts and identifying the areas that can be affected by the oil spill. The assessments performed during this cruise.Lamkin@noaa.gov; 3053614226 1. Executive Summary. As part of NOAA's response to the Deepwater Horizon oil spill

  1. Re: Report has been approved: Effects of Building a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on Louisiana Marshes

    E-Print Network [OSTI]

    a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on Louisiana Marshes of Building a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on LouisianaRe: Report has been approved: Effects of Building a Sand Barrier Berm to Mitigate the Effects

  2. nh gi Tn tht Ti nguyn Thin nhin Trn du Deepwater Horizon D n phc hi C bin ti B Bin Quc Gia

    E-Print Network [OSTI]

    Horizon. Sau s c tràn du Deepwater Horizon, mt lng áng k du t n bãi bin dc theo Florida Panhandle. Trong vi C rùa( Thallasiumtestudium ) , loài ph bin nht ti thm c bin GUIS 3 ) t các im quan trc o lng và

  3. Trajectory Forecast as a Rapid Response to the Deepwater Horizon Oil Spill Yonggang Liu, Robert H. Weisberg, Chuanmin Hu, and Lianyuan Zheng

    E-Print Network [OSTI]

    Meyers, Steven D.

    better or worse than the others throughout the event with one excep- tion. The lessons learned fromTrajectory Forecast as a Rapid Response to the Deepwater Horizon Oil Spill Yonggang Liu, Robert H. Petersburg, Florida, USA In response to the Gulf of Mexico Deepwater Horizon oil spill, a Lagrangian

  4. Will new horizons see dust clumps in the Edgeworth-Kuiper Belt?

    SciTech Connect (OSTI)

    Vitense, Christian; Krivov, Alexander V.; Löhne, Torsten

    2014-06-01

    Debris disks are thought to be sculptured by neighboring planets. The same is true for the Edgeworth-Kuiper debris disk, yet no direct observational evidence for signatures of giant planets in the Kuiper Belt dust distribution has been found so far. Here we model the dust distribution in the outer solar system to reproduce the dust impact rates onto the dust detector on board the New Horizons spacecraft measured so far and to predict the rates during the Neptune orbit traverse. To this end, we take a realistic distribution of trans-Neptunian objects to launch a sufficient number of dust grains of different sizes and follow their orbits by including radiation pressure, Poynting-Robertson and stellar wind drag, as well as the perturbations of four giant planets. In a subsequent statistical analysis, we calculate number densities and lifetimes of the dust grains in order to simulate a collisional cascade. In contrast to the previous work, our model not only considers collisional elimination of particles but also includes production of finer debris. We find that particles captured in the 3:2 resonance with Neptune build clumps that are not removed by collisions, because the depleting effect of collisions is counteracted by production of smaller fragments. Our model successfully reproduces the dust impact rates measured by New Horizons out to ?23 AU and predicts an increase of the impact rate of about a factor of two or three around the Neptune orbit crossing. This result is robust with respect to the variation of the vaguely known number of dust-producing scattered disk objects, collisional outcomes, and the dust properties.

  5. Acute Embryonic or Juvenile Exposure to Deepwater Horizon Crude Oil Impairs the Swimming Performance of Mahi-Mahi (Coryphaena

    E-Print Network [OSTI]

    Grosell, Martin

    Acute Embryonic or Juvenile Exposure to Deepwater Horizon Crude Oil Impairs the Swimming and ecologically important fish species to crude oil during the sensitive early life stages. We show that brief approximately 4 million barrels (6 × 108 L) of crude oil into the northern Gulf of Mexico (GoM).1-3 The DWH

  6. 1112 IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 25, NO. 4, DECEMBER 2010 Short-Horizon Prediction of Wind Power

    E-Print Network [OSTI]

    Kusiak, Andrew

    of Wind Power: A Data-Driven Approach Andrew Kusiak, Member, IEEE, and Zijun Zhang Abstract--This paper discusses short-horizon prediction of wind speed and power using wind turbine data collected at 10 s inter and data-driven models are developed for wind prediction. Power prediction models are estab- lished, which

  7. Long-term monitoring data to describe the fate of polycyclic aromatic hydrocarbons in Deepwater Horizon oil submerged off

    E-Print Network [OSTI]

    Clement, Prabhakar

    Clement Environmental Engineering Program, Department of Civil Engineering, Auburn University, AL 36849 The 2010 Deepwater Horizon (DWH) catastrophe had considerable impact on the 50 km long sandy beach sys- tem over the open ocean system in the Gulf of Mexico. Light PAHs, such as naphthalenes, were fully depleted

  8. Fate of Deepwater Horizon oil in Alabama's beach system: Understanding physical evolution processes based on observational data

    E-Print Network [OSTI]

    Clement, Prabhakar

    : Available online 10 December 2014 Keywords: Oil spill Deepwater Horizon spill Beach contamination Polycyclic aromatic hydrocarbons Crude oil spill a b s t r a c t The impact of MC252 oil on northern Gulf of Mexico impacting these beaches was predominantly in the form of water- in-oil (W/O) emulsions, a highly viscous

  9. Load Reduction of Wind Turbines Using Receding Horizon Control Mohsen Soltani, Rafael Wisniewski, Per Brath, and Stephen Boyd

    E-Print Network [OSTI]

    Load Reduction of Wind Turbines Using Receding Horizon Control Mohsen Soltani, Rafael Wisniewski, Per Brath, and Stephen Boyd Abstract-- Large scale wind turbines are lightly damped mechanical turbine control system, and shows reductions in both extreme loads and power fluctuations by 80% and 90

  10. A knowledge-based approach of seismic interpretation : horizon and dip-fault detection by means of cognitive vision.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A knowledge-based approach of seismic interpretation : horizon and dip-fault detection by means presents preliminary results obtained through a new seismic interpretation methodology based on cognitive building process. The efforts currently made to improve seismic interpretation are mainly focused

  11. nh Gi Thit Hi Ti Nguyn Thin Nhin ca V Trn Du Deepwater Horizon Cc D n Qun Franklin

    E-Print Network [OSTI]

    công cng hin nay. Ban Qun Tr ánh Giá Thit Hi Tài Nguyên The Deepwater Horizon xut by d án v gii trí ti/hoc tng cng s dng và/hoc thng ngon ca công chúng i vi các ngun li thiên nhiên này. xut Nâng Cp Các Công

  12. 1. With the sun at the horizon, light goes through more atmosphere to reach us, scattering more of the higher frequency colors out of it, leaving it more red.

    E-Print Network [OSTI]

    Hart, Gus

    1. With the sun at the horizon, light goes through more atmosphere to reach us, scattering more the line between you and the sun. I accepted any position along this arc: i.e. N or S at the horizon

  13. INTERSTELLAR PICK-UP IONS OBSERVED BETWEEN 11 AND 22 AU BY NEW HORIZONS

    SciTech Connect (OSTI)

    Randol, B. M.; McComas, D. J.; Schwadron, N. A.

    2013-05-10

    We report new observations by the Solar Wind Around Pluto instrument on the New Horizons spacecraft, which measures energy per charge (E/q) spectra of solar wind and interstellar pick-up ions (PUIs) between 11 AU and 22 AU from the Sun. The data provide an unprecedented look at PUIs as there have been very few measurements of PUIs beyond 10 AU. We analyzed the PUI part of the spectra by comparing them to the classic Vasyliunas and Siscoe PUI model. Our analysis indicates that PUIs are usually well-described by this distribution. We derive parameters relevant to PUI studies, such as the ionization rate normalized to 1 AU. Our result for the average ionization rate between 11 and 12 AU agrees with an independently derived average value found during the same time. Later, we find a general increase in the ionization rate, which is consistent with the increase in solar activity. We also calculate the PUI thermal pressure, which appears to be roughly consistent with previous results. Through fitting of the solar wind proton peaks in our spectra, we derive solar wind thermal pressures. Based on our analysis, we predict a ratio of PUI thermal pressure to solar wind thermal pressure just inside the termination shock to be between 100 and >1000.

  14. OBSERVATIONS OF ISOTROPIC INTERSTELLAR PICK-UP IONS AT 11 AND 17 AU FROM NEW HORIZONS

    SciTech Connect (OSTI)

    Randol, B. M.; McComas, D. J.; Elliott, H. A.; Gosling, J. T.; Schwadron, N. A.

    2012-08-10

    We report new observations by the Solar Wind Around Pluto (SWAP) instrument on the New Horizons spacecraft of an energy-per-charge (E/q) spectrum of interstellar pick-up ions (PUIs) from an unprecedented heliocentric distance of 17 AU. This E/q spectrum is fit well by an isotropic PUI distribution function combined with the detailed response of the SWAP instrument. In contrast to earlier work, we are also able to fit an isotropic PUI model to an E/q spectrum measured by SWAP at 11.3 AU by explicitly including two additional effects. These are (1) the E/q-dependent geometric factor of SWAP, which increases with decreasing E/q owing to effects associated with the post-acceleration of particles exiting the electrostatic analyzer portion of the instrument; and (2) a solar wind distribution, the model spectrum of which contributes significantly to the low-E/q part of the overall model owing, presumably, to secondary particles produced within the instrument.

  15. Generalized second law of thermodynamics on the apparent horizon in modified Gauss-Bonnet gravity

    E-Print Network [OSTI]

    Abdolmaleki, A

    2015-01-01

    Modified gravity and generalized second law (GSL) of thermodynamics are interesting topics in the modern cosmology. In this regard, we investigate the GSL of gravitational thermodynamics in the framework of modified Gauss-Bonnet gravity or f(G)-gravity. We consider a spatially FRW universe filled with the matter and radiation enclosed by the dynamical apparent horizon with the Hawking temperature. For two viable f(G) models, we first numerically solve the set of differential equations governing the dynamics of f(G)-gravity. Then, we obtain the evolutions of the Hubble parameter, the Gauss-Bonnet curvature invariant term, the density and equation of state parameters as well as the deceleration parameter. In addition, we check the energy conditions for both models and finally examine the validity of the GSL. For the selected f(G) models, we conclude that both models have a stable de Sitter attractor. The equation of state parameters behave quite similar to those of the LCDM model in the radiation/matter dominat...

  16. Detection of the Cosmic ?-Ray Horizon From Multiwavelength Observations of Blazars

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

    Dominguez, A.; Finke, J. D.; Prada, F.; Primack, J. R.; Kitaura, F. S.; Siana, B.; Paneque, D.

    2013-05-24

    The first statistically significant detection of the cosmic ?-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the Universe to very high energy (VHE) ?-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from ?-ray observations of cosmological blazars and ?-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost) simultaneous observations from radio up to the highest energy ?-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.

  17. DETECTION OF THE COSMIC {gamma}-RAY HORIZON FROM MULTIWAVELENGTH OBSERVATIONS OF BLAZARS

    SciTech Connect (OSTI)

    Dominguez, A.; Siana, B. [Department of Physics and Astronomy, University of California, Riverside, CA 92521 (United States); Finke, J. D. [U.S. Naval Research Laboratory, Space Science Division, Code 7653, 4555 Overlook Avenue SW, Washington, DC 20375 (United States); Prada, F. [Campus of International Excellence UAM-CSIC, Cantoblanco, E-28049 Madrid (Spain); Primack, J. R. [Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Kitaura, F. S. [Leibniz-Institut fuer Astrophysik (AIP), An der Sternwarte 16, D-14482 Potsdam (Germany); Paneque, D., E-mail: albertod@ucr.edu [Kavli Institute for Particle Astrophysics and Cosmology, SLAC, Stanford University, Stanford, CA 94305 (United States)

    2013-06-10

    The first statistically significant detection of the cosmic {gamma}-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the universe to very high energy (VHE) {gamma}-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from {gamma}-ray observations of cosmological blazars and {gamma}-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost) simultaneous observations from radio up to the highest energy {gamma}-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows us a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.

  18. Exact Coupling Of Event Horizons In Curved Spacetime Heterostructures. Application To Black-Hole Physics

    E-Print Network [OSTI]

    Fredrick Michael

    2010-05-22

    Recently we have discussed the generalized parametrized Klein-Gordon equation for curved spacetime. We have also discussed its derivation from several approaches, the direct Feynman parametrization, the state function entropy or equivalently the information theory approach, and the stochastic differential equation approach. We have even suggested a generalization of the statistics of the entropy to the generalized entropies and derived the particular nonextensive statistics parametrized Klein-Gordon equation, and discussed its nonlinear FPE replacement of the complicated Gibbs-Boltzmann statistics entropy derived analog with complicated nonlinear potential or drift and diffusion coefficients. In this article we apply these previously derived results to the quantum transport in abruptly coupled curved space-time heterostructures, applied here specifically to Black-Hole event horizon coupling to normal curved space-time. We derive the coupling self energy, and the Garcia-Molliner surface Green's functions from which we can calculate the surface area and entropy. We then derive the nonequilibrium transport equations for the radiation from the Black-Hole. We discuss the theory application to Worm Holes and quantum analogues.

  19. Detection of the Cosmic ?-Ray Horizon From Multiwavelength Observations of Blazars

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

    Dominguez, A.; Finke, J. D.; Prada, F.; Primack, J. R.; Kitaura, F. S.; Siana, B.; Paneque, D.

    2013-05-24

    The first statistically significant detection of the cosmic ?-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the Universe to very high energy (VHE) ?-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from ?-ray observations of cosmological blazars and ?-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost)more »simultaneous observations from radio up to the highest energy ?-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.« less

  20. Monitoring and Reporting Services for the Toronto Library, Final Report, TESCOR Energy Services, through Energy Systems Associates and New Horizons Technology 

    E-Print Network [OSTI]

    Haberl, J. S.; Athar, A.; Claridge, D. E.

    1998-01-01

    This report summarizes the work performed for TESCOR Energy Services through Energy Systems Associates and New Horizons Technology. This work includes the monitoring and analysis of data from the data logger that was installed in the Toronto Library...

  1. Deep-Diving Cetaceans of the Gulf of Mexico : : Acoustic Ecology and Response to Natural and Anthropogenic Forces Including the Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    Merkens, Karlina Paul

    2013-01-01

    2.4.1 Seasonal and Oil-spill related trends . . 2.4.2 Diel1.4 The Deepwater Horizon Oil Spill . . . . 1.5 DataOil Figure Figure Figure Figure Figure Figure Figure Figure

  2. National and Regional Water and Wastewater Rates For Use in Cost-Benefit Models and Evaluations of Water Efficiency Programs

    E-Print Network [OSTI]

    Fisher, Diane C.; Whitehead, Camilla Dunham; Melody, Moya

    2008-01-01

    released to the sanitary sewer. The volume charge may bethat is released to the sewer. For data from utilities thata utility applies a nominal sewer charge of $2.67 per kilo-

  3. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    panel discussion at AWEA’s WINDPOWER 2011 conference, MayChallenges. ” AWEA’s WINDPOWER 2013 conference, Chicago,panel discussion at AWEA’s WINDPOWER 2011 conference, May

  4. Brucellosis losses, cost/benefits and the feasibility of an annual brucellosis prevention program for Texas beef producers 

    E-Print Network [OSTI]

    Jones, Robert Edwin Lawrence

    1979-01-01

    , Fiscal Years 1974-77 48 18 19 Distribution of Quarantined Beef Herds by Region and Number of Tests Required to Clean Up, Texas, Fiscal Years 1974-77 . Infected Beef Herds Depopulated by Region and Initial Infection Rate, Texas, Fiscal Years 1974...

  5. Evaluating Utility Executives' Perceptions of Smart Grid Costs, Benefits and Adoption Plans To Assess Impacts on Building Design and Construction 

    E-Print Network [OSTI]

    Rao, Ameya Vinayak

    2011-10-21

    part of electric infrastructure providing 24 percent of total US electric sales and 31 percent of residential electric sales (US Energy Information Administration, 2008). The smart grid transformation will have important impacts on design... for Question 4 (Cooperatives and Municipals) ................................... 32 Figure 17 Charts for Question 4 Residential Customer Size Strata ................................. 33 Figure 18 Charts for Question 4 CDD...

  6. The Restructuring and Privatisation of Electricity Distribution and Supply Business in Brazil: A Social Cost-Benefit Analysis

    E-Print Network [OSTI]

    Mota, Raffaella L.

    2004-06-16

    or on the year immediately after the auction Sources: Aneel (2002), Mercado de distribuicao Brasil 2000 - concessionarias de energia eletrica, www.aneel.gov.br.; BNDES (2001), Privatization in Brazil 1991-2001, Federal Privatization Office...

  7. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    Tax Benefit as % of CapEx PTCs (as generated) Depreciation (Present Value = 57% of CapEx (30% PTC and 27% depreciation)operations. Tax Benefit as % of CapEx PTCs (as realized, if

  8. UBC Social, Ecological Economic Development Studies (SEEDS) Student Report Scenic Streams Stormwater Management Cost-Benefit Analysis

    E-Print Network [OSTI]

    UBC Social, Ecological Economic Development Studies (SEEDS) Student Report Scenic Streams of the roof water from the South Campus housing to the constructed stream. The results will be compared the potential to contribute to UBC's reputation as a leader in sustainability by adding social, ecological

  9. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    the value of renewable energy tax benefits in these threerenewable energy deployment are sometimes justified by the benefitsrenewable energy often also point to the ancillary benefits

  10. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    hedge value of renewable energy and the benefits of reducedthe public benefits of renewable energy, including theRenewable Energy Standard: Economic and Employment Benefits

  11. The intergenerational ethics of climate change : the failure of cost-benefit analysis as a normative framework

    E-Print Network [OSTI]

    Lee, Nathan R. (Nathan Ross)

    2014-01-01

    Climate change generates a conflict between generations: while it is in the interest of the current generation to continue to exploit inexpensive carbon-based fuel to drive economic growth, it is in the interest of future ...

  12. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    for the potential demand for renewable energy from otherpotential secondary impacts of increased renewable energyPotential Cost Impacts of a Vermont Renewable Energy

  13. An application of cost-benefit analysis to the Al-Qateef, Saudi Arabia, water management project 

    E-Print Network [OSTI]

    Thenayan, Abdullah T

    1970-01-01

    : estab! isiling the imnortanoe of Oaaes anil Li air. proble! s I:' !ii a I p in nuatlvi. oasis and prese" ii&l . 8: D. ail !. 11, Ll. 1 G so!ve i I 1 ploiilevi. aci? perf Grain& a cost ? ben" 6 ' an, =& ?ye '. s evsi. : a!e Ll casibi lity oi the i...'Cj !??1 c?'0 I. 'I C';1ST-BEBIE' IT 7 &, ' ' I. YS I 6 G Decision. , Among Altern, rives Recuire???cur s for Per&nrviing Cnst-Bc. cefit An, lysis oll Oa 1. Pro . '. ts R" I e v a r. ' c 0:1 s 1" fl. I rl. i s E!visit-. tins ci casts anr! bc?1 its...

  14. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    G. Corey, Energy Storage for the Electricity Grid: Benefitsthe energy storage dispatch schedule for a grid-connected,energy storage technologies as a means to integrate renewable energy resources into electric grids

  15. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    numerical weather prediction for intra-day solar forecastingSolar and Load Forecasts Real forecasts (e.g. from numerical weather prediction)

  16. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    project base-case retail electricity rate increases of lessimpacts on retail electricity rates, the wide range of2. Projected RPS Electricity Rate Impacts by Cost Study Wind

  17. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    of August 2011. Although electricity rates change every fewof current TOU electricity rates for industrial customers insecondary) of default electricity rates for all non-

  18. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    Brief: Reassessing Renewable Energy Subsidies. March 25,PTC resurrection” Renewable Energy-Research Note, March 7,in Utility-Scale Renewable Energy” Project Finance Newswire,

  19. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    to RPS generation requirements, wind cost assumptions arethe sudden leap in wind costs over the past two years, theespecially if higher wind costs persist. However, most, if

  20. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    value, objective total energy capacity of the battery array.determine optimal battery energy capacity (in the context ofconducted if the usable energy capacity of the battery is

  1. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    show that Lithium- ion batteries can be a financially viablethe price at which Lithium-ion batteries become financiallyinstalled cost for Lithium-ion batteries of a) $600/kWh, $

  2. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    photovoltaic systems with battery storages control based onconnected, photovoltaic-battery storage systems A. Nottrott,combined photovoltaic-battery storage system (PV+ system).

  3. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    Parke LLP. 2010b. “Wind and Solar Valuations: Too Low, Too2013. Utility-Scale Solar 2012: An Empirical Analysis ofLLP. 2012c. “Distributed Solar: Unalloyed Growth Story? ”

  4. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    levelized cost of energy (“LCOE”). Tax Equity Yield (after-power closer to achieving LCOE goals (and at no additionallevelized cost of energy (“LCOE”). 3. Model Descriptions and

  5. Cost-Benefit Analysis of Flexibility Retrofits for Coal and Gas-Fueled Power Plants: August 2012 - December 2013

    SciTech Connect (OSTI)

    Venkataraman, S.; Jordan, G.; O'Connor, M.; Kumar, N.; Lefton, S.; Lew, D.; Brinkman, G.; Palchak, D.; Cochran, J.

    2013-12-01

    High penetrations of wind and solar power plants can induce on/off cycling and ramping of fossil-fueled generators. This can lead to wear-and-tear costs and changes in emissions for fossil-fueled generators. Phase 2 of the Western Wind and Solar Integration Study (WWSIS-2) determined these costs and emissions and simulated grid operations to investigate the full impact of wind and solar on the fossil-fueled fleet. This report studies the costs and benefits of retrofitting existing units for improved operational flexibility (i.e., capability to turndown lower, start and stop faster, and ramp faster between load set-points).

  6. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    2514 – Energy storage systems,” storage systems for time-of-use ratesand battery energy storage system, IEEE Transactions on

  7. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    Wind and Water Power Technologies Office and Solar Energy TechnologiesWind and Water Power Technologies Office and Solar Energy TechnologiesWind and Water Power Technologies Office, and Kelly Knutsen, Elaine Ulrich, Christina Nichols, Ammar Qusaibaty, and Minh Le within the Solar Energy Technologies

  8. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    Issue Brief: Reassessing Renewable Energy Subsidies. Marchupdate: PTC resurrection” Renewable Energy-Research Note,and Public Economics of Renewable Electricity Generation. ”

  9. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    Grid-connected photovoltaic systems with battery storagesfor grid-connected photovoltaic systems, IEEE Transactionshybrid photovoltaic and battery energy storage system, IEEE

  10. National and Regional Water and Wastewater Rates For Use in Cost-Benefit Models and Evaluations of Water Efficiency Programs

    E-Print Network [OSTI]

    Fisher, Diane C.; Whitehead, Camilla Dunham; Melody, Moya

    2008-01-01

    excel/aeotab_19.xls Fisher, D.C. , and J.D. Lutz. Water andWaste Water Tariffs for New Residential Construction inNational Association of Clean Water Agencies. 2005 Financial

  11. A Cost-Benefit Assessment of Gasification-Based Biorefining in the Kraft Pulp and Paper Industry

    SciTech Connect (OSTI)

    Eric D. Larson; Stefano Consonni; Ryan E. Katofsky; Kristiina Iisa; W. James Frederick

    2007-03-31

    Production of liquid fuels and chemicals via gasification of kraft black liquor and woody residues (''biorefining'') has the potential to provide significant economic returns for kraft pulp and paper mills replacing Tomlinson boilers beginning in the 2010-2015 timeframe. Commercialization of gasification technologies is anticipated in this period, and synthesis gas from gasifiers can be converted into liquid fuels using catalytic synthesis technologies that are in most cases already commercially established today in the ''gas-to-liquids'' industry. These conclusions are supported by detailed analysis carried out in a two-year project co-funded by the American Forest and Paper Association and the Biomass Program of the U.S. Department of Energy. This work assessed the energy, environment, and economic costs and benefits of biorefineries at kraft pulp and paper mills in the United States. Seven detailed biorefinery process designs were developed for a reference freesheet pulp/paper mill in the Southeastern U.S., together with the associated mass/energy balances, air emissions estimates, and capital investment requirements. Commercial (''Nth'') plant levels of technology performance and cost were assumed. The biorefineries provide chemical recovery services and co-produce process steam for the mill, some electricity, and one of three liquid fuels: a Fischer-Tropsch synthetic crude oil (which would be refined to vehicle fuels at existing petroleum refineries), dimethyl ether (a diesel engine fuel or LPG substitute), or an ethanol-rich mixed-alcohol product. Compared to installing a new Tomlinson power/recovery system, a biorefinery would require larger capital investment. However, because the biorefinery would have higher energy efficiencies, lower air emissions, and a more diverse product slate (including transportation fuel), the internal rates of return (IRR) on the incremental capital investments would be attractive under many circumstances. For nearly all of the cases examined in the study, the IRR lies between 14% and 18%, assuming a 25-year levelized world oil price of $50/bbl--the US Department of Energy's 2006 reference oil price projection. The IRRs would rise to as high as 35% if positive incremental environmental benefits associated with biorefinery products are monetized (e.g., if an excise tax credit for the liquid fuel is available comparable to the one that exists for ethanol in the United States today). Moreover, if future crude oil prices are higher ($78/bbl levelized price, the US Department of Energy's 2006 high oil price scenario projection, representing an extrapolation of mid-2006 price levels), the calculated IRR exceeds 45% in some cases when environmental attributes are also monetized. In addition to the economic benefits to kraft pulp/paper producers, biorefineries widely implemented at pulp mills in the U.S. would result in nationally-significant liquid fuel production levels, petroleum savings, greenhouse gas emissions reductions, and criteria-pollutant reductions. These are quantified in this study. A fully-developed pulpmill biorefinery industry could be double or more the size of the current corn-ethanol industry in the United States in terms of annual liquid fuel production. Forest biomass resources are sufficient in the United States to sustainably support such a scale of forest biorefining in addition to the projected growth in pulp and paper production.

  12. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    State Assembly Bill 2514 – Energy storage systems,” Energy Storage for the Electricity5. D. Rastler, Electric Energy Storage Technology Options: A

  13. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    gas generators (i.e. , coal-fired generators), but most ofmay increasingly displace coal-fired and other non-gas-firedIncreased likelihood that coal-fired generation will set

  14. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    well as the cost of integrating renewable energy into largerto renewable energy in many states, but these costs arerenewable energy credits (RECs) have led to unexpected cost

  15. An Analysis of the Costs, Benefits, and Implications of Different Approaches to Capturing the Value of Renewable Energy Tax Incentives

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    of emerging renewable energy technologies leads to cost8% estimated cost of capital under renewable energy MLPs is8% estimated cost of capital under renewable energy MLPs is

  16. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    Benefit Projections for State Renewables Portfolio Standards2006 Introduction State renewables portfolio standards (RPS)Analysis for Meeting a 20% Renewables Portfolio Standard by

  17. New cost structure approach in green buildings : cost-benefit analysis for widespread acceptance and long-term practice

    E-Print Network [OSTI]

    Wang, Zhiyong, S.M. Massachusetts Institute of Technology. Engineering Systems Division

    2013-01-01

    Although the concepts of sustainable building have been widely accepted in the market, there are unavoidable challenges toward widespread acceptance and long-term practice. Crossing green building development, there is ...

  18. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    and load forecasts in demand side, energy bill managementforecast information. Lithium-ion batteries are not a financially viable storage technology in demand side, energy

  19. Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards

    E-Print Network [OSTI]

    Chen, Cliff; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    electricity and natural gas prices. Over half of the studiesfactors, such as the natural gas price forecast and thecapital costs and natural gas prices. Since wind is expected

  20. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    PV systems using storage and controls, Solar Energy 81(7) (of solar and load forecasting in demand side energy storageEnergy storage, Forecasting, Optimal scheduling, Solar power

  1. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    photovoltaic systems with battery storages control based onthat the energy stored in the battery is bounded withinthe capacity of the battery. Eq. 3b constrains the battery

  2. Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems

    E-Print Network [OSTI]

    Nottrott, A.; Kleissl, J.; Washom, B.

    2013-01-01

    4 show PV+ system power flows, battery charge state and netPV+ system power flows (a,b,c), the battery charge state (d,reverse power flow (i.e. the battery is charging from the

  3. Cost-Benefit Analysis of Flexibility Retrofits for Coal and Gas Fueled Power Plants: August 2012 - December 2013

    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 like submit the followingConcentratingPortalCoolCoronary StentsThe

  4. Geometry of a naked singularity created by standing waves near a Schwarzschild horizon, and its application to the binary black hole problem

    SciTech Connect (OSTI)

    Mandel, Ilya

    2005-10-15

    The most promising way to compute the gravitational waves emitted by binary black holes (BBHs) in their last dozen orbits, where post-Newtonian techniques fail, is a quasistationary approximation introduced by Detweiler and being pursued by Price and others. In this approximation the outgoing gravitational waves at infinity and downgoing gravitational waves at the holes' horizons are replaced by standing waves so as to guarantee that the spacetime has a helical Killing vector field. Because the horizon generators will not, in general, be tidally locked to the holes' orbital motion, the standing waves will destroy the horizons, converting the black holes into naked singularities that resemble black holes down to near the horizon radius. This paper uses a spherically symmetric, scalar-field model problem to explore in detail the following BBH issues: (i) The destruction of a horizon by the standing waves. (ii) The accuracy with which the resulting naked singularity resembles a black hole. (iii) The conversion of the standing-wave spacetime (with a destroyed horizon) into a spacetime with downgoing waves by the addition of a 'radiation-reaction field'. (iv) The accuracy with which the resulting downgoing waves agree with the downgoing waves of a true black-hole spacetime (with horizon). The model problem used to study these issues consists of a Schwarzschild black hole endowed with spherical standing waves of a scalar field, whose wave frequency and near-horizon energy density are chosen to match those of the standing gravitational waves of the BBH quasistationary approximation. It is found that the spacetime metric of the singular, standing-wave spacetime, and its radiation-reaction-field-constructed downgoing waves are quite close to those for a Schwarzschild black hole with downgoing waves--sufficiently close to make the BBH quasistationary approximation look promising for non-tidally-locked black holes.

  5. Solubility of aluminum and silica in Spodic horizons as affected by drying and freezing

    SciTech Connect (OSTI)

    Simonsson, M.; Berggren, D.; Gustafsson, J.P.

    1999-10-01

    The release of toxic Al{sup 3+} is one of the most serious consequences of anthropogenic soil acidification. Therefore, the mechanisms controlling Al solubility have been a topic of intense research for more than a decade. For convenience, soil samples are often dried before storage and experimental use. However, the literature offers examples of drying that results in changes in pH, solubility of organic matter, and dissolution rates of Al. In this study, the authors examined the solubility of Al and Si in fresh soil and in soil that had been dried or deep-frozen. Five Spodosol B horizon soils were subjected to batch titrations, where portions of each soil were equilibrated with solutions with varying concentrations of acid or base added. Extractions with acid oxalate and Na pyrophosphate indicated the presence of imogolite-type materials (ITM) in three of the soils. In the other two soils most secondary solid-phase Al was associated with humic substances. Deep-freezing did not significantly change pH nor the concentration of Al or Si as compared with fresh soil. Drying, on the other hand, yielded pH increases of up to 0.3 units at a given addition of acid or base, whereas Al{sup 3+} changed only slightly, implying a higher Al solubility in all of the soils. Furthermore, dissolved silica increased by up to 200% after drying, except in a soil that almost completely lacked oxalate-extractable Si. The authors suggest that drying enhanced the dissolution of ITM by disrupting soil organic matter, thus exposing formerly coated mineral surfaces. In the soil where dissolved Si did not change with drying, it has been demonstrated that Al-humus complexes controlled Al solubility. They suggest that fissures in the organic material caused by drying may have exposed formerly occluded binding sites that had a higher Al saturation than had sites at the surface of humus particles.

  6. Hadamard Renormalisation of the Stress Energy Tensor on the Horizons of a Spherically Symmetric Black Hole Space-Time

    E-Print Network [OSTI]

    Cormac Breen; Adrian C. Ottewill

    2012-01-11

    We consider a quantum field which is in a Hartle-Hawking state propagating in a general spherically symmetric black hole space-time. We make use of uniform approximations to the radial equation to calculate the components of the stress tensor, renormalized using the Hadamard form of the Green's function, on the horizons of this space-time. We then specialize these results to the case of the `lukewarm' Reissner-Nordstrom-de Sitter black hole and derive some conditions on the stress tensor for the regularity of the Hartle-Hawking state.

  7. The generalized second law of thermodynamics of the universe bounded by the event horizon and modified gravity theories

    E-Print Network [OSTI]

    Nairwita Mazumder; Subenoy Chakraborty

    2010-05-28

    In this paper, we investigate the validity of the generalized second law of thermodynamics of the universe bounded by the event horizon. Here we consider homogeneous and isotropic model of the universe filled with perfect fluid in one case and in another case holographic model of the universe has been considered. In the third case the matter in the universe is taken in the form of non-interacting two fluid system as holographic dark energy and dust. Here we study the above cases in the Modified gravity, f(R) gravity.

  8. Electroweak Corrections to Photon Scattering, Polarization and Lensing in a Gravitational Background and the Near Horizon Limit

    E-Print Network [OSTI]

    Claudio Coriano; Luigi Delle Rose; Matteo Maria Maglio; Mirko Serino

    2015-01-16

    We investigate the semiclassical approach to the lensing of photons in a spherically symmetric gravitational background, starting from Born level and include in our analysis the radiative corrections obtained from the electroweak theory for the graviton/photon/photon vertex. In this approach, the cross section is related to the angular variation of the impact parameter ($b$), which is then solved for $b$ as a function of the angle of deflection, and measured in horizon units ($b_h\\equiv b/(2 G M)$). Exact numerical solutions for the angular deflection are presented. The numerical analysis shows that perturbation theory in a weak background agrees with the classical Einstein formula for the deflection already at distances of the order of $20$ horizon units ($\\sim 20\\, b_h$) and it is optimal in the description both of very strong and weak lensings. We show that the electroweak corrections to the cross section are sizeable, becoming very significant for high energy gamma rays. Our analysis covers in energy most of the photon spectrum, from the cosmic microwave background up to very high energy gamma rays, and scatterings with any value of the photon impact parameter. We also study the helicity-flip photon amplitude, which is of $O(\\alpha^2)$ in the weak coupling $\\alpha$, and its massless fermion limit, which involves the exchange of a conformal anomaly pole. The corresponding cross section is proportional to the Born level result and brings to a simple renormalization of Einsten's formula.

  9. The holographic mapping of the Standard Model onto the black hole horizon, Part I: Abelian vector field, scalar field and BEH Mechanism

    E-Print Network [OSTI]

    G. 't Hooft

    2005-04-25

    Interactions between outgoing Hawking particles and ingoing matter are determined by gravitational forces and Standard Model interactions. In particular the gravitational interactions are responsible for the unitarity of the scattering against the horizon, as dictated by the holographic principle, but the Standard Model interactions also contribute, and understanding their effects is an important first step towards a complete understanding of the horizon's dynamics. The relation between in- and outgoing states is described in terms of an operator algebra. In this paper, the first of a series, we describe the algebra induced on the horizon by U(1) vector fields and scalar fields, including the case of an Englert-Brout-Higgs mechanism, and a more careful consideration of the transverse vector field components.

  10. Imaging the supermassive black hole shadow and jet base of M87 with the event horizon telescope

    SciTech Connect (OSTI)

    Lu, Ru-Sen; Fish, Vincent L.; Doeleman, Sheperd S.; Pankratius, Victor; Broderick, Avery E.; Baron, Fabien; Monnier, John D.

    2014-06-20

    The Event Horizon Telescope (EHT) is a project to assemble a Very Long Baseline Interferometry (VLBI) network of millimeter wavelength dishes that can resolve strong field general relativistic signatures near a supermassive black hole. As planned, the EHT will include enough dishes to enable imaging of the predicted black hole 'shadow', a feature caused by severe light bending at the black hole boundary. The center of M87, a giant elliptical galaxy, presents one of the most interesting EHT targets as it exhibits a relativistic jet, offering the additional possibility of studying jet genesis on Schwarzschild radius scales. Fully relativistic models of the M87 jet that fit all existing observational constraints now allow horizon-scale images to be generated. We perform realistic VLBI simulations of M87 model images to examine the detectability of the black shadow with the EHT, focusing on a sequence of model images with a changing jet mass load radius. When the jet is launched close to the black hole, the shadow is clearly visible both at 230 and 345 GHz. The EHT array with a resolution of 20-30 ?as resolution (?2-4 Schwarzschild radii) is able to image this feature independent of any theoretical models and we show that imaging methods used to process data from optical interferometers are applicable and effective for EHT data sets. We demonstrate that the EHT is also capable of tracing real-time structural changes on a few Schwarzschild radii scales, such as those implicated by very high-energy flaring activity of M87. While inclusion of ALMA in the EHT is critical for shadow imaging, the array is generally robust against loss of a station.

  11. 1566 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: REGULAR PAPERS, VOL. 56, NO. 8, AUGUST 2009 A Low-Power Visual-Horizon Estimation Chip

    E-Print Network [OSTI]

    Horiuchi, Timothy K.

    in the construction of micro aerial vehicles ( 15 cm) have highlighted the lack of real-time sensors for flight environments and cannot give estimates of altitude. For these reasons, real-time detection of the visual horizon may be desir- able for the stabilization of pitch and roll of micro aerial vehi- cles at medium

  12. DEEPWATER HORIZON OIL SPILL ESTIMATE: UPDATE JUNE 11, 2010 by Professor Satish Nagarajaiah, Rice University (www.ruf.rice.edu/~nagaraja &

    E-Print Network [OSTI]

    Nagarajaiah, Satish

    DEEPWATER HORIZON OIL SPILL ESTIMATE: UPDATE JUNE 11, 2010 by Professor Satish Nagarajaiah, Rice. http://www.nytimes.com/2010/06/11/us/11spill.html?hp New Estimates Double Rate of Oil Flowing on Thursday essentially doubled its estimate of how much oil has been spewing from the out-of-control BP well

  13. Of the estimated 5 million barrels of crude oil released into the Gulf of Mexico from the Deepwater Horizon oil spill, a

    E-Print Network [OSTI]

    Weston, Ken

    Of the estimated 5 million barrels of crude oil released into the Gulf of Mexico from the Deepwater Horizon oil spill, a fraction washed ashore onto sandy beaches from Louisiana to the Florida panhandle. Researchers at the MagLab compare the detailed molecular analysis of hydrocarbons in oiled sands from

  14. nh Gi Tn Hi Ti Nguyn Thin Nhin do Trn Du Deep Horizon D n nng cp ng mn vo Khu

    E-Print Network [OSTI]

    tht v dch v gii trí trong vùng t thuc B ni V nm bang vùng Vnh. Sau s c tràn du Deep Horizon, mt lng du và các hot ng i phó u ã làm tn tht các c hi gii trí và làm gim cht lng tri nghim ca du khách n khu

  15. in this issuewe offer commentary on the Iran nuclear negotiations and a Q&A about the New Horizons mission to Pluto (below); the From The Faculty Chair

    E-Print Network [OSTI]

    de Weck, Olivier L.

    in this issuewe offer commentary on the Iran nuclear negotiations and a Q&A about the New Horizons/October 2015 http://web.mit.edu/fnl Massachusetts Institute of Technology continued on page 8 Iran and the P5.S., China, Russia, France,UK,and Germany) and Iran,with respect to non-proliferation of nuclear weapons

  16. Safety, Reliability and Risk Analysis: Beyond the Horizon Steenbergen et al. (Eds) 2014 Taylor & Francis Group, London, ISBN 978-1-138-00123-7

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    properties of the individual components (as wind or solar energy equipment, on-site storage etc.), which may, as well as distributed energy-storage systems (Chen, duan, Cai, Liu, & Hu 2011), (Katiraei & Iravani 20062919 Safety, Reliability and Risk Analysis: Beyond the Horizon ­ Steenbergen et al. (Eds) © 2014

  17. HORIZOnS and OPPORTUNITIES in

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Lunar Science Problems ..........................1 Outlook for Lunar Sample Studies ...........................................30 4 OUTLOOK FOR CURATORIALOPERATIONS ...................31 #12;#12;INTRODUCTION The Moon knowledge about the solar system. Further, the treasures returned through the Apolloprogram provide

  18. would argue that over the last 25 to 30 years, the major driving force in issues

    E-Print Network [OSTI]

    McGaughey, Alan

    , world oil prices had fallen and supplies were again plentiful. In the 1990s, Americans went on an oil related to energy technology has been concerns about the environmental impacts of energy production."As we look ahead, the connection between energy use and global climate change is arguably the biggest

  19. Paths to fusion energy The next 30 years, the next 10 years

    E-Print Network [OSTI]

    roadmaps agree on Gme scale, differ in details Common views on an aggressive at a demonstraGon power plant in ~ 25 years · Most roadmaps agree on Gme scale, differ The fusion era A roadmap to fusion energy discussed in US present GA PPPL MIT

  20. Problems with low exposure Latency of arsenic caused cancer is 30 years or

    E-Print Network [OSTI]

    -MALIGNANT LUNG DISEASE? 150 people without arsenic-caused skin lesions Number with chronic cough 33 (31%) OR = 3 in Drinking Water in West Bengal, India (In press, Epidemiology) Those with chronic cough #12;Figure 2

  1. Gender Trends in Radiation Oncology in the United States: A 30-Year Analysis

    SciTech Connect (OSTI)

    Ahmed, Awad A.; Egleston, Brian; Holliday, Emma; Eastwick, Gary; Takita, Cristiane; Jagsi, Reshma

    2014-01-01

    Purpose: Although considerable research exists regarding the role of women in the medical profession in the United States, little work has described the participation of women in academic radiation oncology. We examined women's participation in authorship of radiation oncology literature, a visible and influential activity that merits specific attention. Methods and Materials: We examined the gender of first and senior US physician-authors of articles published in the Red Journal in 1980, 1990, 2000, 2004, 2010, and 2012. The significance of trends over time was evaluated using logistic regression. Results were compared with female representation in journals of general medicine and other major medical specialties. Findings were also placed in the context of trends in the representation of women among radiation oncology faculty and residents over the past 3 decades, using Association of American Medical Colleges data. Results: The proportion of women among Red Journal first authors increased from 13.4% in 1980 to 29.7% in 2012, and the proportion among senior authors increased from 3.2% to 22.6%. The proportion of women among radiation oncology full-time faculty increased from 11% to 26.7% from 1980 to 2012. The proportion of women among radiation oncology residents increased from 27.1% to 33.3% from 1980 to 2010. Conclusions: Female first and senior authorship in the Red Journal has increased significantly, as has women's participation among full-time faculty, but women remain underrepresented among radiation oncology residents compared with their representation in the medical student body. Understanding such trends is necessary to develop appropriately targeted interventions to improve gender equity in radiation oncology.

  2. Turning off the lights: Supernova SN1987A 30 years on

    E-Print Network [OSTI]

    de Grijs, Richard

    2015-01-01

    Decades-long repeat observations of supernova SN1987A offer us unique, real-time insights into the violent death of a massive star and its long-term environmental effects, until its eventual switch-off.

  3. Understanding the 30-year Barbados desert dust record Natalie M. Mahowald,1

    E-Print Network [OSTI]

    Mahowald, Natalie

    (such as new sources due to desertification or land use) may be difficult to distinguish from: Aerosols (0305); KEYWORDS: mineral aerosols, desert dust, North Africa, desertification Citation: Mahowald

  4. Y-12 celebrates 30 years of sustainability | Y-12 National Security Complex

    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 WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAboutXu Named Mineralogical Society ofSite | NationalReportY-12

  5. Oak Ridge Environmental Management: 30 years in 30 minutes | Department of

    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 wouldMass mapSpeeding access to scienceSpeeding accessScientificandThe1 Much likeEnergy Oak

  6. Oak Ridge Reflects on 30 Years of Cleanup | 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 Bills and ReduceNovember 2014Marketing2014) |D DOak Ridge OPEIU|

  7. Y-12 Apprentice Program graduates first class in almost 30 years | National

    National Nuclear Security Administration (NNSA)

    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 NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReport forRetirementAdministrationWayne JonesSeason |Nuclear

  8. MAP: Watch 30 Years of U.S. Solar Industry Growth | Department of Energy

    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 likeUniverseIMPACTThousandReport) | SciTech ConnectFuture |0396THIN AND SMALLMAP:

  9. A Quantitative Test of the No-Hair Theorem with Sgr A* using stars, pulsars, and the Event Horizon Telescope

    E-Print Network [OSTI]

    Psaltis, Dimitrios; Kramer, Michael

    2015-01-01

    The black hole in the center of the Milky Way, Sgr A*, has the largest mass-to-distance ratio among all known black holes in the Universe. This property makes Sgr A* the optimal target for testing the gravitational no-hair theorem. In the near future, major developments in instrumentation will provide the tools for high-precision studies of its spacetime via observations of relativistic effects in stellar orbits, in the timing of pulsars, and in horizon-scale images of its accretion flow. We explore here the prospect of measuring the properties of the black-hole spacetime using all these three types of observations. We show that the correlated uncertainties in the measurements of the black-hole spin and quadrupole moment using the orbits of stars and pulsars are nearly orthogonal to those obtained from measuring the shape and size of the shadow the black hole casts on the surrounding emission. Combining these three types of observations will, therefore, allow us to assess and quantify systematic biases and un...

  10. Exploring the Gamma Ray Horizon with the next generation of Gamma Ray Telescopes. Part 2: Extracting cosmological parameters from the observation of gamma-ray sources

    E-Print Network [OSTI]

    O. Blanch; M. Martinez

    2004-06-02

    The potential of the new generation Cherenkov Telescopes to measure the energy spectrum of both, the already established extragalactic very high energy gamma-ray emitters and the best very high energy candidates from the EGRET catalogue is discussed. By a realistic simulation of the analysis of the expected extrapolated energy spectra, it is shown that the foreseen capability and precision of these instrument to measure the Gamma Ray Horizon may open the door to competitive measurements of the cosmological parameters.

  11. nh gi Tn hi Ti nguyn Thin nhin do Trn du Deep Horizon Khi phc loi chim ng bin ti vng b bin Alabama

    E-Print Network [OSTI]

    ánh giá Tn hi Tài nguyên Thiên nhiên do Tràn du Deep Horizon Khôi phc loài chim ng bin ti vùng b Alabama s hình thành 5 nn làm t ca chim ng dc theo vùng b bin Mobile và Baldwin, Alabama tng c hi làm có th c tìm thy quanh nm ti khu vc b bin Alabama. Chim ng bin òi hi nhng khu vc làm t rng rãi vi

  12. The generalized second law in irreversible thermodynamics for the interacting dark energy in a non-flat FRW universe enclosed by the apparent horizon

    E-Print Network [OSTI]

    K. Karami; S. Ghaffari

    2010-01-06

    We investigate the validity of the generalized second law in irreversible thermodynamics in a non-flat FRW universe containing the interacting dark energy with cold dark matter. The boundary of the universe is assumed to be enclosed by the dynamical apparent horizon. We show that for the present time, the generalized second law in nonequilibrium thermodynamics is satisfied for the special range of the energy transfer constants.

  13. Validity of the Generalized Second Law of Thermodynamics of the Universe Bounded by the Event Horizon in Holographic Dark Energy Model

    E-Print Network [OSTI]

    Nairwita Mazumder; Subenoy Chakraborty

    2010-05-19

    In this letter, we investigate the validity of the generalized second law of thermodynamics of the universe bounded by the event horizon in the holographic dark energy model. The universe is chosen to be homogeneous and isotropic and the validity of the first law has been assumed here. The matter in the universe is taken in the form of non-interacting two fluid system- one component is the holographic dark energy model and the other component is in the form of dust.

  14. 3-D seismic surveys generate 5-D data volume. In order to estimate the horizons for interpretation and further processing, the traveltime picking needs to be performed on n-D subsets of this 5-D data volume (n5). Horizon

    E-Print Network [OSTI]

    Nicoli, Monica

    Abstract 3-D seismic surveys generate 5-D data volume. In order to estimate the horizons for interpretation and further processing, the traveltime picking needs to be performed on n-D subsets of this 5-D to support the interpreters in the estimation of the events by preserving their depth continuity. The HP

  15. Receding Horizon Covariance Control 

    E-Print Network [OSTI]

    Wendel, Eric

    2012-10-19

    Covariance assignment theory, introduced in the late 1980s, provided the only means to directly control the steady-state error properties of a linear system subject to Gaussian white noise and parameter uncertainty. This theory, however, does...

  16. Expanding Professional Horizons

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

    expands daily, by leaps and bounds - knowledge turnover must be accompanied by an infusion of new talent that both informs and is informed by existing, experienced staff. With...

  17. LLNL 1981: technical horizons

    SciTech Connect (OSTI)

    Not Available

    1981-07-01

    Research programs at LLNL for 1981 are described in broad terms. In his annual State of the Laboratory address, Director Roger Batzel projected a $481 million operating budget for fiscal year 1982, up nearly 13% from last year. In projects for the Department of Energy and the Department of Defense, the Laboratory applies its technical facilities and capabilities to nuclear weapons design and development and other areas of defense research that include inertial confinement fusion, nonnuclear ordnances, and particle-beam technology. LLNL is also applying its unique experience and capabilities to a variety of projects that will help the nation meet its energy needs in an environmentally acceptable manner. A sampling of recent achievements by LLNL support organizations indicates their diversity. (GHT)

  18. Expanding Professional Horizons

    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 like submitKansasCommunitiesof Energy8) WignerEnergyAbout Us Hanford1MAY99a *

  19. Environmental disaster or just a drop in the bucket?: Texas scientists on the real effects of the Deepwater Horizon oil spill 

    E-Print Network [OSTI]

    Lee, Leslie

    2011-01-01

    .pdf.txt Content-Type text/plain; charset=windows-1252 Winter 2011 tx H2O 3 or just a drop in thebucket?Texas scientists on the real e?ects of the Deepwater Horizon oil spill 4 tx H2O Winter 2011 Environmental Disaster Continued What if gasoline... used by some oil companies,? Bianchi commented to Texas A&M News & Information Services in November. ??ey use high pressure water systems, which on rocks is ?ne, but not on plant material. So this has likely cut them [the plant material] back so...

  20. Environmental disaster or just a drop in the bucket: Texas scientists on the real effects of the Deewater Horizon oil spill 

    E-Print Network [OSTI]

    Lee, Leslie

    2011-01-01

    .pdf.txt Content-Type text/plain; charset=windows-1252 Winter 2011 tx H2O 3 or just a drop in thebucket?Texas scientists on the real e?ects of the Deepwater Horizon oil spill 4 tx H2O Winter 2011 Environmental Disaster Continued What if gasoline... used by some oil companies,? Bianchi commented to Texas A&M News & Information Services in November. ??ey use high pressure water systems, which on rocks is ?ne, but not on plant material. So this has likely cut them [the plant material] back so...

  1. Hot Issue and Burning Options in Waste Management: A Social Cost Benefit Analysis of Waste-to-Energy in the UK.

    E-Print Network [OSTI]

    Jamasb, Tooraj; Kiamil, H.; Nepal, R.

    significant share of total cost from conventional thermal energy sources. Meanwhile, most renewable energy generation (such as wind, solar, marine, and hydroelectric) is capital intensive, but has no direct fuel cost. A notable exception is biomass energy... transaction costs prohibitively high. The alternatives are either market-based incentives or command-and-control policies. These instruments are capable of achieving a Pareto optimal outcome under the assumptions of a first-best world, in which government...

  2. A Cost Benefit Analysis of a V2G-Capable Electric School Bus Compared to a Traditional Diesel School Bus

    E-Print Network [OSTI]

    Firestone, Jeremy

    Average Electricity Carbon Emission Rate 1.18 lbs/kWh Cdr Diesel Carbon Emission Rate 22.2 lbs/kWh D Miles $0.106/kWh PR Regulation Price for V2G Revenue $28/MWh R Range of Battery 100 miles rd Discount Rate of Replacement Battery $300/kWh CD Seating Capacity of Diesel Bus 32 CE Seating Capacity of Electric Bus 24 Cer

  3. 2011 HM{sub 102}: DISCOVERY OF A HIGH-INCLINATION L5 NEPTUNE TROJAN IN THE SEARCH FOR A POST-PLUTO NEW HORIZONS TARGET

    SciTech Connect (OSTI)

    Parker, Alex H.; Holman, Matthew J.; McLeod, Brian A.; Buie, Marc W.; Borncamp, David M.; Spencer, John R.; Stern, S. Alan; Osip, David J.; Gwyn, Stephen D. J.; Fabbro, Sebastian; Kavelaars, J. J.; Benecchi, Susan D.; Sheppard, Scott S.; Binzel, Richard P.; DeMeo, Francesca E.; Fuentes, Cesar I.; Trilling, David E.; Gay, Pamela L.; Petit, Jean-Marc; Tholen, David J.; and others

    2013-04-15

    We present the discovery of a long-term stable L5 (trailing) Neptune Trojan in data acquired to search for candidate trans-Neptunian objects for the New Horizons spacecraft to fly by during an extended post-Pluto mission. This Neptune Trojan, 2011 HM{sub 102}, has the highest inclination (29. Degree-Sign 4) of any known member of this population. It is intrinsically brighter than any single L5 Jupiter Trojan at H{sub V} {approx} 8.18. We have determined its gri colors (a first for any L5 Neptune Trojan), which we find to be similar to the moderately red colors of the L4 Neptune Trojans, suggesting similar surface properties for members of both Trojan clouds. We also present colors derived from archival data for two L4 Neptune Trojans (2006 RJ{sub 103} and 2007 VL{sub 305}), better refining the overall color distribution of the population. In this document we describe the discovery circumstances, our physical characterization of 2011 HM{sub 102}, and this object's implications for the Neptune Trojan population overall. Finally, we discuss the prospects for detecting 2011 HM{sub 102} from the New Horizons spacecraft during its close approach in mid- to late-2013.

  4. On the Lack of Type I X-ray Bursts in Black Hole X-ray Binaries: Evidence for the Event Horizon?

    E-Print Network [OSTI]

    Ramesh Narayan; Jeremy S. Heyl

    2002-06-28

    Type I X-ray bursts are very common in neutron star X-ray binaries, but no Type I burst has been seen in the dozen or so binaries in which the accreting compact star is too massive to be a neutron star and therefore is identified as a black hole candidate. We have carried out a global linear stability analysis of the accumulating fuel on the surface of a compact star to identify the conditions under which thermonuclear bursts are triggered. Our analysis, which improves on previous calculations, reproduces the gross observational trends of bursts in neutron star systems. It further shows that, if black hole candidates have surfaces, they would very likely exhibit instabilities similar to those that lead to Type I bursts on neutron stars. The lack of bursts in black hole candidates is thus significant, and indicates that these objects have event horizons. We discuss possible caveats to this conclusion.

  5. Introduction from the "Front End"Introduction from the "Front End" 30 Years of Archiving MMS Marine Invertebrates at the30 Years of Archiving MMS Marine Invertebrates at the

    E-Print Network [OSTI]

    Miller, Scott

    of animals live there,To identify what kinds of animals live there, Determine the sensitivity of each kind the environment from possible impacts of offshore energy developmentfrom possible impacts of offshore energy is Difficult ·· Due to remoteness/water depth/weatherDue to remoteness/water depth/weather ·· Time Consuming

  6. Directional change in upland tundra plant communities 20-30 years after seismic exploration in the Canadian low-arctic

    E-Print Network [OSTI]

    Macdonald, Ellen

    in the Canadian low-arctic Kemper, J. Todd1,2 & Macdonald, S. Ellen1Ã 1 Department of Renewable Resources Energy Board of Canada. Introduction Arctic tundra plant communities are subject to both natural of low-arctic plant communities two to three decades after seismic ex- ploration. Location: Mackenzie

  7. End of an Era: UW's state-of-the-art airborne research facility grounded after 30 years

    E-Print Network [OSTI]

    Doty, Sharon Lafferty

    pollution on the atmosphere and some of the ear- liest research on acid rain. The team flew through's largest groups studying clouds, precipitation and at- mospheric pollution, all of which are important, where she spent two years running, among other scientific instruments, a lidar, which uses laser light

  8. Global data set of biogenic VOC emissions calculated by the MEGAN model over the last 30 years

    SciTech Connect (OSTI)

    Sindelarova, K.; Granier, Claire; Bouarar, I.; Guenther, Alex B.; Tilmes, S.; Stavrakou, T.; Muller, J. F.; Kuhn, U.; Stefani, P.; Knorr, W.

    2014-09-09

    The Model of Emissions of Gases and Aerosols from Nature (MEGANv2.1) together with the Modern-Era Retrospective Analysis for Research and Applications (MERRA) meteorological fields were used to create a global emission dataset of biogenic VOCs available on a monthly basis for the time period of 1980 - 2010. This dataset is called MEGAN-MACC. The model estimated mean annual total BVOC emission of 760 Tg(C) yr1 consisting of isoprene (70%), monoterpenes (11%), methanol (6%), acetone (3%), sesquiterpenes (2.5%) and other BVOC species each contributing less than 2 %. Several sensitivity model runs were performed to study the impact of different model input and model settings on isoprene estimates and resulted in differences of * 17% of the reference isoprene total. A greater impact was observed for sensitivity run applying parameterization of soil moisture deficit that led to a 50% reduction of isoprene emissions on a global scale, most significantly in specific regions of Africa, South America and Australia. MEGAN-MACC estimates are comparable to results of previous studies. More detailed comparison with other isoprene in ventories indicated significant spatial and temporal differences between the datasets especially for Australia, Southeast Asia and South America. MEGAN-MACC estimates of isoprene and*-pinene showed a reasonable agreement with surface flux measurements in the Amazon andthe model was able to capture the seasonal variation of emissions in this region.

  9. For more than 30 years, imaging strengths at Western University and throughout London, Ontario have grown from cohesive efforts to

    E-Print Network [OSTI]

    Lennard, William N.

    capacities and such processes as categorization, motor control, attention, self- awareness, language, memory for high-field MR neuroimaging: home to a 7-Tesla functional MRI system ­ the highest-field human MRI The 7-Tesla functional MRI system at Robarts Research Institute is the highest-field human MRI device

  10. D e e p w a t e r H o r i z o n O i l S p i l l N a t u r a l R e s o u r c e D a m a g e A s s e s s m e n t Deepwater Horizon Oil Spill

    E-Print Network [OSTI]

    ) was using Transocean's mobile offshore drilling unit Deepwater Horizon to drill a well in the Macondo prospect (Mississippi Canyon 252 ­ MC252) when the well blew out, and the drilling unit exploded, caught

  11. Technology on the Horizon & Over the Horizon

    Gasoline and Diesel Fuel Update (EIA)

    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 GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices, SalesMoroccoTurkey

  12. Your Horizons Conference April 6

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

    The young women will participate in hands-on activities in such fields as astronomy, robotics, forensics, chemistry, and earth science. Scheduled activities include small- group...

  13. Black hole horizons Eric Gourgoulhon

    E-Print Network [OSTI]

    Gourgoulhon, Eric

    on a black hole: up to 42% of the mass-energy mc2 of accreted matter ! NB: thermonuclear reactions release: a very deep gravitational potential well Release of potential gravitational energy by accretion

  14. An horizon scan of biogeography

    E-Print Network [OSTI]

    2013-01-01

    Database – base? line  data  and  statistics  on  seed  dispersal.   Perspectives  in  Plant Ecology, Evolution and 

  15. An horizon scan of biogeography

    E-Print Network [OSTI]

    2013-01-01

    A.  (2003) The Human Genome  Project: lessons from large?be? ginning  the  human  genome  project,  criteria  were 

  16. Horizon thermodynamics and composite metrics

    E-Print Network [OSTI]

    Lorenzo Sindoni

    2012-11-12

    We examine the conditions under which the thermodynamic behaviour of gravity can be explained within an emergent gravity scenario, where the metric is defined as a composite operator. We show that due to the availability of a boundary of a boundary principle for the quantum effective action, Clausius-like relations can always be constructed. Hence, any true explanation of the thermodynamic nature of the metric tensor has to be referred to an equilibration process, associated to the presence of an H-theorem, possibly driven by decoherence induced by the pregeometric degrees of freedom, and their entanglement with the geometric ones.

  17. Multi-horizon stochastic programming

    E-Print Network [OSTI]

    2013-08-26

    Aug 26, 2013 ... Keywords: stochastic programming, multistage, energy planning , scenario tree ..... EnRiMa (Energy Efficiency and Risk Management in Public ...

  18. An horizon scan of biogeography

    E-Print Network [OSTI]

    2013-01-01

    A.  & Petit, R.J.  (2009) Paleoecology meets genet? ics: Paleo* = paleobiology, paleoecology (including also their pa? leobiogeography  and  paleoecology  studies  often  are 

  19. Computational Horizons in Cancer PROCEEDINGS

    E-Print Network [OSTI]

    Maini, Philip K.

    and Electronics Engineers, Inc. All rights reserved. Copyright and Reprint Permission Abstracting is permitted. Dionysiou (IEEE Xplore® Version) E #12;Proceedings of the 2014 6th International Advanced Research Workshop-4 November 2014 Edited by G. S. Stamatakos and D. Dionysiou (IEEE Xplore® Version) ISBN (electronic): 978

  20. Archaeological Horizons in Central California

    E-Print Network [OSTI]

    Heizer, Robert F.; Fenenga, Franklin

    1939-01-01

    1935 A Yokuts Cemetery at Elk Hills. Southwest Museum, The18, 1937. See also the Elk Hills site report (Walker, 1935)

  1. The New Horizons of Bioenergy

    ScienceCinema (OSTI)

    None

    2013-04-19

    At the Office of Energy Efficiency and Renewable Energy's "Biomass 2011" conference, Argonne researcher Seth Snyder spoke with DOE Biomass Program head, Paul Bryan. In this conversation, Snyder explains the process of biochemical conversion, and talks about Argonne's patented resin wafer technology. The resin wafer electrodeionization technology may help significantly reduce the cost of producing clean energy and of the chemicals and water used in industry. The separations technology can also process biomass-based feedstocks into biofuels and chemicals.

  2. Cost of cell-cell signaling in Pseudomonas aeruginosa: why it can pay to be signal-blind In a recent, largely theoretical review, Laurent Keller and Mike Surette provide a cost-benefit

    E-Print Network [OSTI]

    Alvarez, Nadir

    % of the total energy supply, as at least 5% of all P. aeruginosa genes are induced during the quorum sensing in natural isolates, and when such defects do occur they appear to be associated with a primary lasR mutation2 . It is easy to see the reason behind this. Only 0.01% of the total cellular amount of ATP

  3. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    E-Print Network [OSTI]

    Hong, Tianzhen

    2014-01-01

    DB. Weather data for building performance simulation.forecast models, weather data, and building prototypes havethe TMY3 weather data in building simulations to evaluate

  4. abundance of Fe, estimated to be 2 nM (26, 27), and its very short resident time of Fe 30 years

    E-Print Network [OSTI]

    Hartmann, Dennis

    . Tindale, Mar. Chem. 36, 1715 (1991). 24. M. L. Wells, N. M. Price, K. W. Bruland, Mar. Chem. 48, 157 (1995). 25. N. M. Price and F. M. M. Morel, Met. Ions Biol. Syst. 35, 1 (1998). 26. J. Wu and E. A. Boyle, Anal. Chim. Acta 367, 183 (1997). 27. K. S. Johnson, R. M. Gordon, K. H. Coale, Mar. Chem. 57, 137

  5. Level I will be in Tulsa July 8-19, 2013 Contact Angelyn Ulrich (alullrich@baschools.org) for information Celebrating nearly 30 years of successful, innovative

    E-Print Network [OSTI]

    Oklahoma, University of

    Level I will be in Tulsa ­ July 8-19, 2013 ­ Contact Angelyn Ulrich (alullrich I and II in The University of Oklahoma Kodály summer certification programs in Norman and Tulsa. Bev

  6. CHANGES IN 137 CS CONCENTRATIONS IN SOIL AND VEGETATION ON THE FLOODPLAIN OF THE SAVANNAH RIVER OVER A 30 YEAR PERIOD

    SciTech Connect (OSTI)

    Paller, M.; Jannik, T.; Fledderman, P.

    2007-12-12

    {sup 137}Cs released during 1954-1974 from nuclear production reactors on the Savannah River Site, a US Department of Energy nuclear materials production site in South Carolina, contaminated a portion of the Savannah River floodplain known as Creek Plantation. {sup 137}Cs activity concentrations have been measured in Creek Plantation since 1974 making it possible to calculate effective half-lives for {sup 137}Cs in soil and vegetation and assess the spatial distribution of contaminants on the floodplain. Activity concentrations in soil and vegetation were higher near the center of the floodplain than near the edges as a result of frequent inundation coupled with the presence of low areas that trapped contaminated sediments. {sup 137}Cs activity was highest near the soil surface, but depth related differences diminished with time as a likely result of downward diffusion or leaching. Activity concentrations in vegetation were significantly related to concentrations in soil. The plant to soil concentration ratio (dry weight) averaged 0.49 and exhibited a slight but significant tendency to decrease with time. The effective half-lives for {sup 137}Cs in shallow (0-7.6 cm) soil and in vegetation were 14.9 (95% CI = 12.5-17.3) years and 11.6 (95% CI = 9.1-14.1) years, respectively, and rates of {sup 137}Cs removal from shallow soil and vegetation did not differ significantly among sampling locations. Potential health risks on the Creek Plantation floodplain have declined more rapidly than expected on the basis of radioactive decay alone because of the relatively short effective half-life of {sup 137}Cs.

  7. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    E-Print Network [OSTI]

    Hong, Tianzhen

    2014-01-01

    vs. synthesized energy modeling weather files. Journal ofHong TZ, Jiang Y. Stochastic weather model for building HVAC1. [9] Crawley DB. Which weather data should you use for

  8. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    E-Print Network [OSTI]

    Hong, Tianzhen

    2014-01-01

    reduction of peak electricity demand, and percentage savingsvariables and monthly electricity demand. Applied Energychanges of peak electricity demand. (a) large office, 90.1-

  9. 48 51(2) avril/April 2005 Canadian Medical Physics Newsletter / Le bulletin canadien physique mdical 30 Years Ago: First PET Scanner in Canada

    E-Print Network [OSTI]

    Thompson, Chris

    CBF)in the exposed brain, both in animal experiments and during human surgery for arterial-venous malformations invasively. One of these techniques involved applying small silicon diode radiation detectors

  10. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    E-Print Network [OSTI]

    Hong, Tianzhen

    2014-01-01

    energy performance and demand response. Accurate estimationto assess accurately demand response strategies. 3.6 Weatherincluding HVAC design, demand response for smart grids, and

  11. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    E-Print Network [OSTI]

    Hong, Tianzhen

    2014-01-01

    space temperature, occupant thermal comfort, cooling and heating loads, HVAC equipment sizes, energy consumption, utility cost, air emissions, water usage, renewable

  12. A Fresh Look at Weather Impact on Peak Electricity Demand and Energy Use of Buildings Using 30-Year Actual Weather Data

    E-Print Network [OSTI]

    Hong, Tianzhen

    2014-01-01

    EUI (kWh/m 2 ), year City Miami Riyadh Houston PhoenixEUI (kWh/m 2 ), year City Miami Riyadh Houston PhoenixEUI (kWh/m 2 ), year City Miami Riyadh Houston Phoenix

  13. Are you looking for new horizons?

    E-Print Network [OSTI]

    Michelson, David G.

    of the University Counsel is responsible for managing all of UBC's legal affairs (with the exception of labour with other institutions; assisting with risk assessment and control; developing institutional policy

  14. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    Charter (WWFC). This unique document was issued for the first time in 1998 by four global automotive orga- nizations from USA, Europe and Japan, plus 15 other national automotive organizations. The Charter aims. Rodica A. Baranescu is a professor at University of Illinois at Chicago, Department of Mechanical

  15. Horizon Operator Approach to Black Hole Quantization

    E-Print Network [OSTI]

    G. 't Hooft

    1994-02-21

    The $S$-matrix Ansatz for the construction of a quantum theory of black holes is further exploited. We first note that treating the metric tensor $g_{\\m\

  16. SOME NEW HORIZONS IN RECORDING THE EEG

    E-Print Network [OSTI]

    PRIBRAM, KARL H.

    2009-01-01

    Higher Cognitive Functions was provided by World Scientific.Access to World Scientific is possible through the

  17. Horizon 2020 Marie Sklodowska-Curie Actions

    E-Print Network [OSTI]

    Bordenave, Charles

    excellence through cross-border and cross-sector mobility 3. Stimulating innovation through cross sustainable career development in research and innovation Focus on delivering new knowledge and skills-up Participation of non-academic sector strongly encouraged, especially industry and SMEs Mobility as the key

  18. PLUTO'S SEASONS: NEW PREDICTIONS FOR NEW HORIZONS

    SciTech Connect (OSTI)

    Young, L. A. [Southwest Research Institute, Boulder, CO 80302 (United States)

    2013-04-01

    Since the last Pluto volatile transport models were published in 1996, we have (1) new stellar occultation data from 2002 and 2006-2012 that show roughly twice the pressure as the first definitive occultation from 1988, (2) new information about the surface properties of Pluto, (3) a spacecraft due to arrive at Pluto in 2015, and (4) a new volatile transport model that is rapid enough to allow a large parameter-space search. Such a parameter-space search coarsely constrained by occultation results reveals three broad solutions: a high-thermal inertia, large volatile inventory solution with permanent northern volatiles (PNVs; using the rotational north pole convention); a lower thermal-inertia, smaller volatile inventory solution with exchanges of volatiles between hemispheres and a pressure plateau beyond 2015 (exchange with pressure plateau, EPP); and solutions with still smaller volatile inventories, with exchanges of volatiles between hemispheres and an early collapse of the atmosphere prior to 2015 (exchange with early collapse, EEC). PNV and EPP are favored by stellar occultation data, but EEC cannot yet be definitively ruled out without more atmospheric modeling or additional occultation observations and analysis.

  19. Deepwater Horizon Disaster Professor Satish Nagarajaiah

    E-Print Network [OSTI]

    Nagarajaiah, Satish

    and Women Who Serve Our Country And To Those Who Lost Their Lives Doing Their Duty Invited Lecture, ASCE of natural gas. Was upended by Hurricane Rita in 2005, but no leak!! and things worked fine. The platform/day and 220 million CFT of natural gas. Badly damaged in Hurricane Katrina 2005. No leak!! and things worked

  20. Flight Without Horizon References in European Starlings

    E-Print Network [OSTI]

    Moyle, Robert G.; Heppner, Frank H.

    1998-07-01

    :16:41 PM All use subject to JSTOR Terms and Conditions 772 Short Communications [Auk, Vol. 115 Plexiglas. Rayner (1994) summarized previous wind- tunnel studies and described how free flight may dif- fer from that in a closed-section wind tunnel. Wild... and navigation: A symposium. NASA SP- 262. United States Government Printing Office, Washington, D.C. JANDER, R. 1975. Ecological aspects of spatial orien- tation. Annual Review of Ecology and System- atics 6:171-188. RAYNER, J. M. V. 1994. Aerodynamic...

  1. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    ORNL, Dr. Icenhour served as a commissioned officer in the U.S. Navy on a nuclear- powered submarine the Benefits of Nuclear Science and Technology The Oak Ridge National Laboratory (ORNL) is a U.S. Department&D in a range of disciplines including neutron science, high-performance computing, advanced materials, nuclear

  2. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    -inspireddesignandinformalscienceeducation using bio-inspired design. Janine Benyus, President and Founder of Biomimicry 3.8, Time Magazine Hero

  3. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    wind energy technology research facility, fosters innovative wind energy technologies for land-based and offshore wind through its research and testing facilities and extends these capabilities to marine

  4. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    into Fuel In the DOE Energy Innovation Hub, the Joint Center for Artificial Photosynthesis, we are de of Chemistry at Caltech since 1991 and is the Scientific Director of the Joint Center for Artificial Photosynthesis, the DOE's Energy

  5. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    Manufacturing Materials: How Important is Nano? The development of a sustainable energy portfolio to mitigate,weareseeinganincreasinginvestmentinrenew- able energies, like wind and solar. The development of new technologies leading to a clean energy with the use of alternative fuel sources and electrification, this can break petroleum's vise grip

  6. Dream.Discover.Do. unlimited horizons.

    E-Print Network [OSTI]

    Wenderholm, Elaine

    viewing gallery. And All the Comforts of Home You'll find a multitude of places to live, study, and play Weather and Feature Reporter, NBC's Today Show; Best-Selling Author New York, New York #12;4 Princeton

  7. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    of Infiltrated SOFC Cathode Solid oxide fuel cells (SOFCs) are promising candidates for future energy conversion and other types of fuel cells. However, there are several major technical hurdles to overcome before SOFC methods have been widely employed to improve the oxygen reduction re- action (ORR) kinetics of SOFC

  8. Inward Horizons of the Spinning Nucleons

    SciTech Connect (OSTI)

    Prokudin, Alexey [Jefferson Lab, Newport News, VA

    2014-04-01

    QCD and Spin physics are playing important role in our understanding of hadron structure. I will give a short overview of origin of hadron structure in QCD and highlight modern understanding of the subject. Jefferson Laboratory is undergoing an upgrade that will increase the energy of electron beam up to 12 GeV. JLab is one of the leading facilities in nuclear physics studies and once operational in 2015 JLab 12 will be crucial for future of nuclear physics. I will briefly discuss future studies in four experimental halls of Jefferson Lab.

  9. www.ictas.vt.edu NEW HORIZONS

    E-Print Network [OSTI]

    Crawford, T. Daniel

    ; and higher output energy genera- tion and storage devices. NASA has developed a 20-plus-year plan for the development of nanostructured materials and devices and their insertion into NASA missions. This presentation materials and nanostructured polymeric materials. #12;

  10. Liouville theory beyond the cosmological horizon

    E-Print Network [OSTI]

    Geoffrey Compère; Laura Donnay; Pierre-Henry Lambert; Waldemar Schulgin

    2015-04-29

    The dS/CFT correspondence postulates the existence of a Euclidean CFT dual to a suitable gravity theory with Dirichlet boundary conditions asymptotic to de Sitter spacetime. A semi-classical model of such a correspondence consists of Einstein gravity with positive cosmological constant and without matter which is dual to Euclidean Liouville theory defined at the future conformal boundary. Here we show that Euclidean Liouville theory is also dual to Einstein gravity with Dirichlet boundary conditions on a fixed timelike slice in the static patch. Intriguingly, the spacetime interpretation of Euclidean Liouville time is the physical time of the static observer. As a prerequisite of this correspondence, we show that the asymptotic symmetry algebra which consists of two copies of the Virasoro algebra extends everywhere into the bulk.

  11. Horizon Batteries formerly Electrosource | 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 NewTexas: Energy Resources JumpNew Jersey:Hopkinsville, Kentucky: Energy Resources

  12. Horizon Wind Energy | 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 NewTexas: Energy Resources JumpNew Jersey:Hopkinsville, Kentucky: Energy ResourcesCity,Energy

  13. Horizon Ethanol LLC | 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 E LISTStar2-0057-EA JumpDuimen RiverScoring Tool Jump to:Ethanol LLC Jump to:

  14. Data from Deepwater Horizon | 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 Rank EERE:FinancingPetroleum Based| Department8, 20153Daniel Boff About Us DanielData Safer than Ever

  15. Expanding Your Horizons scheduled for March 2

    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 like submitKansasCommunitiesof Energy8) WignerEnergyAbout Us Hanford1MAY99a

  16. 30 Years scanning Tunneling MicroscopY CHIMIA 2012, 66, No. 1/2 31 doi:10.2533/chimia.2012.31 Chimia 66 (2012) 3137 Schweizerische Chemische Gesellschaft

    E-Print Network [OSTI]

    Gao, Hongjun

    2012-01-01

    ' Imaging of the Si(111)-7×7 Surface and Metal-supported Molecules Ye-liang Wang*, Zhi-hai Cheng, Zhi-tao Deng, Hai-ming Guo, Shi-xuan Du, and Hong-jun Gao* Abstract: We report on high-resolution STM

  17. Introduction........................................................................................................3 ON THE HORIZON: Promising Research Efforts Currently Underway

    E-Print Network [OSTI]

    the load on the electricity grid and make "smart" decisions about when to charge electric cars--saving.............................................................................................17 Faster, Cleaner, More Flexible Energy Storage ........................................18 Shining just a few examples of how energy and environment innovations at Pacific Northwest National Laboratory

  18. Variable horizon model predictive control: robustness and optimality

    E-Print Network [OSTI]

    Shekhar, Rohan Chandra

    2012-07-03

    . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 6.3 Kinematic vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 6.4 Mechanism model showing generalised coordinates . . . . . . . . . . . . . . . . 109 6.5 Static balance of material failure forces... .1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 6.1.1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 6.2 Mechanism Model...

  19. New tool on horizon for surgeons treating cancer patients | ornl...

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

    Laboratory and Brigham and Women's HospitalHarvard Medical School. In the journal Analytical and Bioanalytical Chemistry, a team led by ORNL's Vilmos Kertesz describes an...

  20. MotorWeek H2 on the Horizon Video

    Broader source: Energy.gov [DOE]

    MotorWeek Host: Fuel cell electric cars, or FCEVs, provide drivers with the same benefits as current gasoline vehicles with a comparable driving range and refueling in just a few minutes. FCEVs don...

  1. Expanding Your Horizons Conference, Lawrence Livermore National Lab

    Broader source: Energy.gov [DOE]

    Our goal is to introduce young women in grades 6 through 12 to a variety of diverse and challenging careers and encourage their interest in science and mathematics. At the conference, participants...

  2. New Horizons and New Strategies in Arms Control

    SciTech Connect (OSTI)

    Brown, J. editor

    1998-12-04

    In the last ten years, since the break-up of the Soviet Union, remarkable progress in arms control and disarmament has occurred. The Nuclear Non-Proliferation Treaty (NPT), the completion of the Comprehensive Test Ban Treaty (CTBT), and the Chemical Weapons Treaty (CWC) are indicative of the great strides made in the non- proliferation arena. Simultaneously, the Intermediate Nuclear Forces Treaty (INF), the Conventional Forces Treaty in Europe (CFE), and the Strategic Arms Reduction Treaties (START), all associated with US-Soviet Union (now Russia) relations have assisted in redefining European relations and the security landscape. Finally, it now appears that progress is in the offing in developing enhanced compliance measures for the Biological and Toxin Weapons Convention (BTWC). In sum, all of these achievements have set the stage for the next round of arms control activities, which may lead to a much broader, and perhaps more diffused multilateral agenda. In this new and somewhat unpredictable international setting, arms control and disarmament issues will require solutions that are both more creative and innovative than heretofore.

  3. SC-RISE LECTURE SERIES BRIGHT HORIZONS IN SOLAR ENERGY

    E-Print Network [OSTI]

    are being developed including biomass, geothermal, hydropower, ocean thermal energy conversion, solar in technology development. The high capital costs typical of sustainable technologies coupled with the cyclic Time: 3:00 PM Location: A265 Bourns Hall Abstract: Low cost energy is critical to our lifestyles

  4. Predicting traffic speed in urban transportation subnetworks for multiple horizons

    E-Print Network [OSTI]

    Jaillet, Patrick

    such as route guidance, urban traffic control and management, and sustainable mobility [1]­[3]. Consequently Laboratory for Information and Decision Systems, MIT, Cambridge, MA. 4 Center for Future Urban Mobility

  5. WHAT'S OVER THE HORIZON? THE FUTURE OF MAGNETIC

    E-Print Network [OSTI]

    ¨ Carbon walls not suited for nuclear environment ¤ Erosion ¤ Co-deposition of tritium ¨ Need to limit+ Energy [eV] 100 101 102 10-1 10-2 10-3 10-4 10-5 1 10 100 1000 eV 1e-05 0.0001 0.001 0.01 0.1 unitless 1.M. Wallace, IAP2014 R=0.68m, a=0.22m, B=8T #12;Vertical target divertor spreads out heat flux footprint

  6. Equilateral Non-Gaussianity and New Physics on the Horizon

    E-Print Network [OSTI]

    Daniel Baumann; Daniel Green

    2011-03-23

    We examine the effective theory of single-field inflation in the limit where the scalar perturbations propagate with a small speed of sound. In this case the non-linearly realized time-translation symmetry of the Lagrangian implies large interactions, giving rise to primordial non-Gaussianities. When the non-Gaussianities are measurable, these interactions will become strongly coupled unless new physics appears close to the Hubble scale. Due to its proximity to the Hubble scale, the new physics is not necessarily decoupled from inflationary observables and can potentially affect the predictions of the model. To understand the types of corrections that may arise, we construct weakly-coupled completions of the theory and study their observational signatures.

  7. Interlaboratory Analytical Comparison Study to Support Deepwater Horizon

    E-Print Network [OSTI]

    R. Kucklick Analytical Chemistry Division Material Measurement Laboratory National Institute tissue QA10TIS01 reported here. In this exercise, selected polycyclic aromatic hydrocarbons (PAHs have collected environmental samples for hydrocarbon analysis and submitted them to different

  8. Interlaboratory Analytical Comparison Study to Support Deepwater Horizon

    E-Print Network [OSTI]

    . Kucklick Analytical Chemistry Division Material Measurement Laboratory National Institute of Standards, crude oil QA10OIL01 reported here. In this exercise, selected polycyclic aromatic hydrocarbons (PAHs will be required. In addition, numerous other entities have collected environmental samples for hydrocarbon

  9. Interlaboratory Analytical Comparison Study to Support Deepwater Horizon

    E-Print Network [OSTI]

    and John R. Kucklick Analytical Chemistry Division Material Measurement Laboratory National Institute, marine sediment QA10SED01 reported here. In this exercise, selected polycyclic aromatic hydrocarbons for hydrocarbon analysis and submitted them to different laboratories throughout the country. In the past

  10. Energy Technologies on the Horizon (released in AEO2006)

    Reports and Publications (EIA)

    2006-01-01

    A key issue in mid-term forecasting is the representation of changing and developing technologies. How existing technologies will evolve, and what new technologies might emerge, cannot be known with certainty. The issue is of particular importance in Annual Energy Outlook 2006 (AEO), the first AEO with projections out to 2030.

  11. Trajectory planning for unmanned vehicles using robust receding horizon control

    E-Print Network [OSTI]

    Kuwata, Yoshiaki, 1978-

    2007-01-01

    This thesis presents several trajectory optimization algorithms for a team of cooperating unmanned vehicles operating in an uncertain and dynamic environment. The first, designed for a single vehicle, is the Robust Safe ...

  12. Path dependent receding horizon control policies for hybrid electric vehicles

    E-Print Network [OSTI]

    Kolmanovsky, Ilya V.

    Future hybrid electric vehicles (HEVs) may use path-dependent operating policies to improve fuel economy. In our previous work, we developed a dynamic programming (DP) algorithm for prescribing the battery state of charge ...

  13. New Horizons Mission Powered by Space Radioisotope Power Systems...

    Energy Savers [EERE]

    its planned encounter with Pluto and its moon, Charon. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma...

  14. The Expanding Horizons of Asparagine-Linked Glycosylation

    E-Print Network [OSTI]

    Larkin, Angelyn

    Asparagine-linked glycosylation involves the sequential assembly of an oligosaccharide onto a polyisoprenyl donor, followed by the en bloc transfer of the glycan to particular asparagine residues within acceptor proteins. ...

  15. RRI a Horizon 2020 Barcelona, 17 de juny de 2015

    E-Print Network [OSTI]

    Verschure, Paul

    -RRI) hub for information and communication tecnologies (ICT) RRI- Horitzontal H2020 #12;RRI �tica Gènere

  16. Moving Horizon Filter for Monotonic Trends Sikandar Samar

    E-Print Network [OSTI]

    applications where system performance needs to be monitored and trended. Such applications include automotive platforms. However a batch optimization solution of the monotonic regression problem results in a growing size of the problem as more measure- ments become available. In many aerospace, automotive, and other

  17. on the Horizon Neutron imaging to advance energy efficiency in

    E-Print Network [OSTI]

    Pennycook, Steve

    , fuel cells, hydrogen stor- age, vehicle technologies, building technologies, and indus- trial, building technologies, manufacturing processes, geothermal systems, biofuels, and much more. Optimized

  18. Geodesic completeness in a wormhole spacetime with horizons

    E-Print Network [OSTI]

    Olmo, Gonzalo J; Sanchez-Puente, A

    2015-01-01

    The geometry of a spacetime containing a wormhole generated by a spherically symmetric electric field is investigated in detail. These solutions arise in high-energy extensions of General Relativity formulated within the Palatini approach and coupled to Maxwell electrodynamics. Even though curvature divergences generically arise at the wormhole throat, we find that these spacetimes are geodesically complete. This provides an explicit example where curvature divergences do not imply spacetime singularities.

  19. HorizonsInnovation at Glasgow Issue 9 Autumn 2011

    E-Print Network [OSTI]

    Guo, Zaoyang

    best in the UK for student satisfaction in the 2011 International Student Barometer. While our strategy group at the University is taking centre stage in the attempt to develop a viable alternative energy. With the world's population now standing at over 7 billion and the impact that has on energy consumption, we

  20. HorizonsInnovation at Glasgow Issue 7 Autumn 2010

    E-Print Network [OSTI]

    Guo, Zaoyang

    Glasgow academics are working to make solar cells a more powerful contender in today's options for energy have launched a new strategy to take this vision into the future. Fostering in excellent research is a fundamental element of our strategy and our vision is clear. We will encourage multidisciplinary approaches

  1. New Science on the Horizon as Upgraded Particle Accelerator Meets...

    Office of Science (SC) Website

    a new experimental area, Hall D. The Impact Researchers need very big microscopes to study the very small building blocks of matter. CEBAF's electron accelerator and...

  2. A special report on physics in Brazil New horizons for

    E-Print Network [OSTI]

    Barbosa, Marcia C. B.

    of deep offshore oil fields is creating a hub for industrial R&D, while research investment is opening upLLABoRAtions Alltheworld'sastage 25 Extra investment in international projects is opening up new opportunities for Brazil

  3. NONLINEAR MODEL PREDICTIVE CONTROL WITH MOVING HORIZON STATE AND

    E-Print Network [OSTI]

    Van den Hof, Paul

    referred to as air pollution or "post-combustion" control systems). In this paper only the combustion - WITH APPLICATION TO MSW COMBUSTION M. Leskens , L.B.M. van Kessel , P.M.J. Van den Hof and O.H. Bosgra strategy are demonstrated by applying it to a model of a municipal solid waste (MSW) combustion plant under

  4. Imaging an event horizon: mitigation of scattering toward Sagittarius A*

    SciTech Connect (OSTI)

    Fish, Vincent L.; Lu, Ru-Sen; Doeleman, Sheperd S.; Pankratius, Victor [Massachusetts Institute of Technology, Haystack Observatory, Route 40, Westford, MA 01886 (United States); Johnson, Michael D.; Narayan, Ramesh; Vertatschitsch, Laura E. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Bouman, Katherine L.; Zoran, Daniel; Freeman, William T. [Massachusetts Institute of Technology, Computer Science and Artificial Intelligence Laboratory, 32 Vassar Street, Cambridge, MA 02139 (United States); Psaltis, Dimitrios [Astronomy and Physics Departments, University of Arizona, 933 North Cherry Street, Tucson, AZ 85721 (United States); Broderick, Avery E. [Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, ON N2L 2Y5 (Canada); Gwinn, Carl R., E-mail: vfish@haystack.mit.edu [Department of Physics, University of California, Santa Barbara, CA 93106 (United States)

    2014-11-10

    The image of the emission surrounding the black hole in the center of the Milky Way is predicted to exhibit the imprint of general relativistic (GR) effects, including the existence of a shadow feature and a photon ring of diameter ?50 ?as. Structure on these scales can be resolved by millimeter-wavelength very long baseline interferometry. However, strong-field GR features of interest will be blurred at ? ? 1.3 mm due to scattering by interstellar electrons. The scattering properties are well understood over most of the relevant range of baseline lengths, suggesting that the scattering may be (mostly) invertible. We simulate observations of a model image of Sgr A* and demonstrate that the effects of scattering can indeed be mitigated by correcting the visibilities before reconstructing the image. This technique is also applicable to Sgr A* at longer wavelengths.

  5. DOE - Office of Legacy Management -- Horizons Inc - OH 05

    Office of Legacy Management (LM)

    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 NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth Dakota Edgemont, SouthLaboratoryDivHarshaw ChemicalHooker

  6. Horizon City, Texas: Energy Resources | 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 NewTexas: Energy Resources JumpNew Jersey:Hopkinsville, Kentucky: Energy ResourcesCity, Texas:

  7. Horizon Wind Energy formerly Zilkha Renewable Energy | 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 on QA:QAsource History View NewTexas: Energy Resources JumpNew Jersey:Hopkinsville, Kentucky: Energy ResourcesCity,

  8. COLLOQUIUM: Initial Observations from the New Horizons Flyby of Pluto |

    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 WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1, 2013, 4:15pm Colloquia MBG

  9. ORISE: DeepwaterHorizon and Nuclear & Radiological Incidents

    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 wouldMass map shinesSolarNewsusceptometer underI REEECNO OFChicago No-Noticel l i a m H a l e y

  10. Prairie Horizon Agri Energy LLC | 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 ECoop Inc Jump to:Newberg,Energy LLC JumpPhonoSolar and Wind JumpPowercomPublic

  11. Horizon Fuel Cell Technologies Pte Ltd | 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 E LISTStar2-0057-EA JumpDuimen RiverScoring Tool Jump to:Ethanol LLC Jump

  12. MHK Technologies/Horizon Horizontal Platform | 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 2050Enermar < MHK TechnologiesCatHorizontal Platform

  13. New Horizons Mission Powered by Space Radioisotope Power Systems |

    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 GasAdjustmentsShirley Ann JacksonDepartment ofOffice|in the subsurface is better6, 2015Energy, CutDepartment of

  14. Los Alamos National Laboratory cosponsors 30th Expanding Your Horizons

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)LodgingSchoolconference Expanding your

  15. ORISE: White paper analyzes Deepwater Horizon event for improving nuclear

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSEHow ORISE isParis CornwellDuring EmergenciesWeband

  16. RTG-History, the Curiosity, Voyager, and New Horizons

    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 WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProton Delivery andInnovationsRSS Feed Los Alamos

  17. VOLUME 18, NUMBER 2, 2010 n LINCOLN LABORATORY JOURNAL 47 Wind-Shear System

    E-Print Network [OSTI]

    Cho, John Y. N.

    VOLUME 18, NUMBER 2, 2010 n LINCOLN LABORATORY JOURNAL 47 Wind-Shear System Cost-Benefit Analysis. » #12;48 LINCOLN LABORATORY JOURNAL n VOLUME 18, NUMBER 2, 2010 WIND-SHEAR SYSTEM COST-BENEFIT ANALYSIS-shear system cost benefits in order to retrospectively evaluate the expected safety benefits of wind

  18. The Gravitational Wave International Committee Roadmap: The future of gravitational wave astronomy

    E-Print Network [OSTI]

    Jay Marx; Karsten Danzmann; James Hough; Kazuaki Kuroda; David McClelland; Benoit Mours; Sterl Phinney; Sheila Rowan; B. Sathyaprakash; Flavio Vetrano; Stefano Vitale; Stan Whitcomb; Clifford Will

    2011-11-24

    Gravitational wave science is on the verge of direct observation of the waves predicted by Einstein's General Theory of Relativity and opening the exciting new field of gravitational wave astronomy. In the coming decades, ultra-sensitive arrays of ground-based instruments and complementary spaced-based instruments will observe the gravitational wave sky, inevitably discovering entirely unexpected phenomena while providing new insight into many of the most profound astrophysical phenomena known. in July 2007 the Gravitational Wave International Committee (GWIC) initiated the development of a strategic roadmap for the field of gravitational wave science with a 30-year horizon. The goal of this roadmap is to serve the international gravitational wave community and its stakeholders as a tool for the development of capabilities and facilities needed to address the exciting scientific opportunities on the intermediate and long-term horizons.

  19. The Gravitational Wave International Committee Roadmap: The future of gravitational wave astronomy

    E-Print Network [OSTI]

    ,

    2011-01-01

    Gravitational wave science is on the verge of direct observation of the waves predicted by Einstein's General Theory of Relativity and opening the exciting new field of gravitational wave astronomy. In the coming decades, ultra-sensitive arrays of ground-based instruments and complementary spaced-based instruments will observe the gravitational wave sky, inevitably discovering entirely unexpected phenomena while providing new insight into many of the most profound astrophysical phenomena known. in July 2007 the Gravitational Wave International Committee (GWIC) initiated the development of a strategic roadmap for the field of gravitational wave science with a 30-year horizon. The goal of this roadmap is to serve the international gravitational wave community and its stakeholders as a tool for the development of capabilities and facilities needed to address the exciting scientific opportunities on the intermediate and long-term horizons.

  20. Advanced Fuel Cycle Treatment, Recycling, and Disposal of Nuclear Waste

    SciTech Connect (OSTI)

    Collins, Emory D [ORNL; Jubin, Robert Thomas [ORNL; DelCul, Guillermo D [ORNL; Spencer, Barry B [ORNL; Renier, John-Paul [ORNL

    2009-01-01

    Nuclear waste, in the form of used and spent nuclear fuel, is currently being stored in the U.S., mostly at reactor sites to await future direct disposal or treatment to permit recycle of re-usable components and minimization of wastes requiring geologic disposal. The used fuel is currently accumulating at a rate of over 2,000 tons per year and a total of over 60,000 tons is in storage. New dry storage capacity is estimated to cost {approx} $0.6 B per year. Technologies have been developed and deployed worldwide to treat only a portion of the nuclear waste that is generated. Recent research, development, and systems analysis studies have shown that nuclear waste treatment could be done at the rate of generation in a safe, environmentally friendly, and cost-effective manner. These studies continue to show that major benefits can be obtained by allowing the used fuel assemblies to remain in safe storage for 30 years or longer before treatment. During this time, the radioactivity and decay heat generation decrease substantially, such that the separations process can be simplified and made less costly, waste gases containing {sup 85}Kr can be released below regulatory limits, and the solid fission product wastes containing {sup 137}Cs and {sup 90}Sr require decay storage for a much shorter time-period before geologic disposal. In addition, the need for separating curium from americium and for extra purification cycles for the uranium and uranium-plutonium-neptunium products is greatly diminished. Moreover, during the 30+ years of storage prior to treatment, the quality of the recyclable fuel is only degraded by less than 5 percent. The 30+ year storage period also enables recycle of long-lived transuranic actinides to be accomplished in existing light water reactors without waiting on and incurring the cost of the development, licensing, and deployment of future Gen IV reactors. Overall, the safety, environmental, and cost benefits of treating the longer aged used nuclear wastes are substantial.

  1. Extending the Horizons: Environmental Environmental Excellence as Key to Improving Operations.

    E-Print Network [OSTI]

    Corbett, C. J.; Klassen, R. D.

    2006-01-01

    superior quality. Production and Operations Management. 12(quality initiatives of Baldrige Award winners. Production and Operations Managementand Operations Management 1G(3) 292-3G5. Stage 1: Quality

  2. Effect of the Gribov horizon on the Polyakov loop and vice versa

    E-Print Network [OSTI]

    F. E. Canfora; D. Dudal; I. F. Justo; P. Pais; L. Rosa; D. Vercauteren

    2015-06-29

    We consider finite temperature SU(2) gauge theory in the continuum formulation, which necessitates the choice of a gauge fixing. Choosing the Landau gauge, the existing gauge copies are taken into account by means of the Gribov-Zwanziger (GZ) quantization scheme, which entails the introduction of a dynamical mass scale (Gribov mass) directly influencing the Green functions of the theory. Here, we determine simultaneously the Polyakov loop (vacuum expectation value) and Gribov mass in terms of temperature, by minimizing the vacuum energy w.r.t. the Polyakov loop parameter and solving the Gribov gap equation. Inspired by the Casimir energy-style of computation, we illustrate the usage of Zeta function regularization in finite temperature calculations. Our main result is that the Gribov mass directly feels the deconfinement transition, visible from a cusp occurring at the same temperature where the Polyakov loop becomes nonzero. In this exploratory work we mainly restrict ourselves to the original Gribov-Zwanziger quantization procedure in order to illustrate the approach and the potential direct link between the vacuum structure of the theory (dynamical mass scales) and (de)confinement. We also present a first look at the critical temperature obtained from the Refined Gribov-Zwanziger approach. Finally, a particular problem for the pressure at low temperatures is reported.

  3. Effect of the Gribov horizon on the Polyakov loop and vice versa

    E-Print Network [OSTI]

    Canfora, F E; Justo, I F; Pais, P; Rosa, L; Vercauteren, D

    2015-01-01

    We consider finite temperature SU(2) gauge theory in the continuum formulation, which necessitates the choice of a gauge fixing. Choosing the Landau gauge, the existing gauge copies are taken into account by means of the Gribov-Zwanziger (GZ) quantization scheme, which entails the introduction of a dynamical mass scale (Gribov mass) directly influencing the Green functions of the theory. Here, we determine simultaneously the Polyakov loop (vacuum expectation value) and Gribov mass in terms of temperature, by minimizing the vacuum energy w.r.t. the Polyakov loop parameter and solving the Gribov gap equation. Inspired by the Casimir energy-style of computation, we illustrate the usage of Zeta function regularization in finite temperature calculations. Our main result is that the Gribov mass directly feels the deconfinement transition, visible from a cusp occurring at the same temperature where the Polyakov loop becomes nonzero. In this exploratory work we mainly restrict ourselves to the original Gribov-Zwanzig...

  4. Extending the Horizons: Environmental Environmental Excellence as Key to Improving Operations.

    E-Print Network [OSTI]

    Corbett, C. J.; Klassen, R. D.

    2006-01-01

    competitive advantage. Strategic Management Journal. 15(Freeman, R.E. , 1984. Strategic Management: A Stakeholderbalanced scorecard as a strategic management system. Harvard

  5. U.S. Solar Manufacturing Rising on the Horizon | Department of...

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

    grows, the Energy Department's investments in this sector have begun to bear fruit. Three solar manufacturing companies that have received research and development funding from the...

  6. Extending the Horizons: Environmental Environmental Excellence as Key to Improving Operations.

    E-Print Network [OSTI]

    Corbett, C. J.; Klassen, R. D.

    2006-01-01

    1972. Is pollution profitable? Risk Management, 19(4) 9-18.of profitable pollution reduction. Management Science. 48(2)both an environmental management system (EMS) and pollution

  7. The Great Shift: Macroeconomic projections For the World Economy at the 2050 Horizon

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    function that includes capital, labour and energy. We improve on the literature by accounting for the energy constraint through dynamic modelling of energy productivity, and departing from the assumptions, China could account for 33% of the world economy in 2050, which would be much more than the United

  8. Solar irradiance forecasting at multiple time horizons and novel methods to evaluate uncertainty

    E-Print Network [OSTI]

    Marquez, Ricardo

    2012-01-01

    114 Solar Irradiance And Power Output Variabilityand L. Bangyin. Online 24-h solar power forecasting based onNielsen. Online short-term solar power forecasting. Solar

  9. Guidance, Navigation and Controls Conference Receding Horizon Control for Atmospheric Energy

    E-Print Network [OSTI]

    Langelaan, Jack W.

    commonly use the significant energy available in the atmosphere to their advantage by soaring. Soaring and Astronautics Paper 2010-8177 #12;Energy can also be harvested from spatial gradients in the wind field. Birds, such as albatrosses have been observed gaining energy from wind gradients near the ocea

  10. University of cambridge research magazine www.research-horizons.cam.ac.uk

    E-Print Network [OSTI]

    staircases and a large atrium, and is designed to the highest environmental standards. It will be a place. They will be joined by the Department of Politics and International Studies ­ with its research centres on governance-based graduate programmes and their own global academic networks; the scope for their further collaboration

  11. Robust Horizon Detection using Segmentation for UAV Applications Nasim Sepehri Boroujeni, S. Ali Etemad

    E-Print Network [OSTI]

    Whitehead, Anthony

    for various types of terrains from water to ground, and even snow-covered ground. Finally, it is shown of the eyes and brain of an operator for controlling an automated vehicle. Automated cars, unmanned aerial ve of collision or failure, has been subject to extensive research [2]. Obstacle detection for UAVs is the first

  12. Moving Horizon Estimation with a Huber Penalty Function for Robust Pose Estimation of Tethered Airplanes

    E-Print Network [OSTI]

    that fly under automatic control at high velocities in a crosswind fashion. The resulting flight control

  13. Control of Airborne Wind Energy Systems Based on Nonlinear Model Predictive Control & Moving Horizon Estimation

    E-Print Network [OSTI]

    crosswind flight [18], which essentially consists in extracting power from the airflow by flying an airfoil generation based on crosswind flight over conventional wind turbines is that higher altitude can be reached

  14. A Rolling Horizon Framework for Intermodal Loading Assignment to Improve Fuel Efficiency

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    based on empirical data show significant aerodynamic efficiency benefits from these optimization models to counterbalance the effect of uncertainty. Appropriate weights are determined by simulations based on real data between Chicago and Los Angeles (LA). About 80% of the IM trains on this route are loaded or unloaded only

  15. The Finite Horizon Optimal Multi-Modes Switching Problem: The Viscosity Solution Approach

    SciTech Connect (OSTI)

    El Asri, Brahim Hamadene, Said

    2009-10-15

    In this paper we show existence and uniqueness of a solution for a system of m variational partial differential inequalities with inter-connected obstacles. This system is the deterministic version of the Verification Theorem of the Markovian optimal m-states switching problem. The switching cost functions are arbitrary. This problem is in relation with the valuation of firms in a financial market.

  16. A Receding Horizon Control Algorithm for Adaptive Management of Soil Moisture and Chemical Levels during Irrigation

    E-Print Network [OSTI]

    Park, Yeonjeong; Shamma, Jeff; Harmon, Thomas C

    2009-01-01

    and tested for the control of water content and contaminantsq i , is control vector (reclaimed water application rate)C, and the control vector is reclaimed water input q. For a

  17. Solar irradiance forecasting at multiple time horizons and novel methods to evaluate uncertainty

    E-Print Network [OSTI]

    Marquez, Ricardo

    2012-01-01

    From the k(t + 1) predictions, solar irradiance forecastsand M. Cony. Prediction of global solar irradiance based onand A. E. Ruano. Prediction of the solar radiation evolution

  18. A connection between plasma conditions near black hole event horizons and outflow properties

    E-Print Network [OSTI]

    Koljonen, K I I; Ontiveros, J A Fernández; Markoff, S; Russell, T D; Miller-Jones, J C A; van der Horst, A J; Bernardini, F; Casella, P; Curran, P A; Gandhi, P; Soria, R

    2015-01-01

    Accreting black holes are responsible for producing the fastest, most powerful outflows of matter in the Universe. The formation process of powerful jets close to black holes is poorly understood, and the conditions leading to jet formation are currently hotly debated. In this paper, we report an unambiguous empirical correlation between the properties of the plasma close to the black hole and the particle acceleration properties within jets launched from the central regions of accreting stellar-mass and supermassive black holes. In these sources the emission of the plasma near the black hole is characterized by a power law at X-ray energies during times when the jets are produced. We find that the photon index of this power law, which gives information on the underlying particle distribution, correlates with the characteristic break frequency in the jet spectrum, which is dependent on magnetohydrodynamical processes in the outflow. The observed range in break frequencies varies by five orders of magnitude, i...

  19. Solar irradiance forecasting at multiple time horizons and novel methods to evaluate uncertainty

    E-Print Network [OSTI]

    Marquez, Ricardo

    2012-01-01

    photovoltaic systems. Progress In Photovoltaics, 16(3):241–analytic model. Progress In Photovoltaics, 19(2):218–227,

  20. Expand your horizons! | OSTI, US Dept of Energy, Office of Scientific...

    Office of Scientific and Technical Information (OSTI)

    Information (OSTI) and the Department of Energy (DOE). Through @sciencegov, get health studies, space, natural disaster and energy efficiency information plus more via the...