National Library of Energy BETA

Sample records for formosa point comfort

  1. Dew Point Evaporative Comfort Cooling: Report and Summary Report

    SciTech Connect (OSTI)

    Dean, J.; Herrmann, L.; Kozubal, E.; Geiger, J.; Eastment, M.; Slayzak, S.

    2012-11-01

    The project objective was to demonstrate the capabilities of the high-performance multi-staged IEC technology and its ability to enhance energy efficiency and interior comfort in dry climates, while substantially reducing electric-peak demand. The project was designed to test 24 cooling units in five commercial building types at Fort Carson Army Base in Colorado Springs, Colorado.

  2. Guide to Setting Thermal Comfort Criteria and Minimizing Energy Use in Delivering Thermal Comfort

    E-Print Network [OSTI]

    Regnier, Cindy

    2014-01-01

    including cost, energy and thermal comfort analysis, whichfor greatest energy benefits, prioritize thermal comfortMinimizing Energy Use in Delivering Thermal Comfort Cindy

  3. Evolving opportunities for providing thermal comfort

    E-Print Network [OSTI]

    Brager, Gail; Zhang, Hui; Arens, Edward

    2015-01-01

    control in offices for thermal comfort and energy savings.ANSI/ASHRAE 55-2013: Thermal environmental conditions forA global database of thermal comfort field experiments.

  4. Evolving opportunities for providing thermal comfort

    E-Print Network [OSTI]

    Brager, Gail; Zhang, Hui; Arens, Edward

    2015-01-01

    must greater scale than productivity measurement. Comfort inof productivity in COOL BIZ office by field measurement of

  5. Evolving opportunities for providing thermal comfort

    E-Print Network [OSTI]

    Brager, Gail; Zhang, Hui; Arens, Edward

    2015-01-01

    prevent good building energy Performance – Inte- gratedfeedback loops for building energy performance Source: Arensbuildings to optimize both comfort and energy performance,

  6. Evolving opportunities for providing thermal comfort

    E-Print Network [OSTI]

    Brager, Gail; Zhang, Hui; Arens, Edward

    2015-01-01

    for thermal comfort and energy savings. Master of Scienceprevent good building energy Performance – Inte- gratedACEEE Summer Study on Energy Efficiency in Buildings, Arens,

  7. Data Collection Methods for Assessing Adaptive Comfort in Mixed-Mode Buildings and Personal Comfort Systems

    E-Print Network [OSTI]

    Ackerly, Katie; Brager, Gail; Arens, Ed

    2012-01-01

    thermal  comfort  –  Occupant   behavior  and  energy  use  2001.  “Characterizing  occupant  behavior  in  buildings:  knowledge  and  behavior  of  occupants.    They  conclude  

  8. Improving efficiency of a vehicle HVAC system with comfort modeling...

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

    efficiency of a vehicle HVAC system with comfort modeling, zonal design, and thermoelectric devices Improving efficiency of a vehicle HVAC system with comfort modeling, zonal...

  9. Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty...

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

    and Thermal Comfort Enablers for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications 2012 DOE Hydrogen and Fuel...

  10. Achieving Sustainability, Energy Savings, and Occupant Comfort 

    E-Print Network [OSTI]

    Fisher, D.; Bristow, G.

    2009-01-01

    Sustainability, energy savings, and occupant comfort are not mutually exclusive objectives, as buildings can be designed that incorporate all of these features. Sustainability is often defined as meeting the needs of the present without compromising...

  11. Guide to Setting Thermal Comfort Criteria and Minimizing Energy Use in Delivering Thermal Comfort

    SciTech Connect (OSTI)

    Regnier, Cindy

    2012-08-31

    Historically thermal comfort in buildings has been controlled by simple dry bulb temperature settings. As we move into more sophisticated low energy building systems that make use of alternate systems such as natural ventilation, mixed mode system and radiant thermal conditioning strategies, a more complete understanding of human comfort is needed for both design and control. This guide will support building designers, owners, operators and other stakeholders in defining quantifiable thermal comfort parameters?these can be used to support design, energy analysis and the evaluation of the thermal comfort benefits of design strategies. This guide also contains information that building owners and operators will find helpful for understanding the core concepts of thermal comfort. Whether for one building, or for a portfolio of buildings, this guide will also assist owners and designers in how to identify the mechanisms of thermal comfort and space conditioning strategies most important for their building and climate, and provide guidance towards low energy design options and operations that can successfully address thermal comfort. An example of low energy design options for thermal comfort is presented in some detail for cooling, while the fundamentals to follow a similar approach for heating are presented.

  12. Personalized Building Comfort Control Mark Christopher Feldmeier

    E-Print Network [OSTI]

    an increase in comfort, while decreasing energy usage at the same time. The difficult problems of control and Sciences, School of Architecture and Planning, in partial fulfillment of the requirements for the degree in Media Arts and Sciences, School of Architecture and Planning, on September 4, 2009, in partial

  13. Living Comfortably: A Consumer's Guide to Home Energy Upgrades...

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

    Living Comfortably: A Consumer's Guide to Home Energy Upgrades Living Comfortably: A Consumer's Guide to Home Energy Upgrades March 7, 2013 - 3:15pm Addthis A weatherization worker...

  14. Thermal comfort and perceived air quality of a PEC system

    E-Print Network [OSTI]

    Arens, Edward; Zhang, Hui; Pasut, Wilmer; Warneke, Ashley; Bauman, Fred; Higuchi, Hiroshi

    2011-01-01

    Akimoto, T. , Genma T. 2007. Thermal sensation and comfortW. , Gong, N. 2007. Thermal performance of a personalizedRESULTS 1. Whole-body thermal sensation and comfort with the

  15. Atmospheric Apparatus : the production of another comfort paradigm

    E-Print Network [OSTI]

    Tang, Hung Fai

    2013-01-01

    Nowadays, being thermal comfort is no longer a challenging problem for modern living. With the aids of the modern environmental control technologies, a fast, convenient and effective thermal comfort experience can be easily ...

  16. Thermal Comfort of Neutral Ventilated Buildings in Different Cities 

    E-Print Network [OSTI]

    Ye, X.; Zhou, Z.; Lian, Z.; Wen, Y.; Zhou, Z.; Jiang, C.

    2006-01-01

    .Jiang. Thermal comfort in naturally ventilated houses in Beijing. Journal of HVAC [J], 1999, 29(2):1-5. (In Chinese) [16] N.Zhu. Studies on some key issues of thermal ICEBO2006, Shenzhen, China Maximize Comfort: Temperature..., China Maximize Comfort: Temperature, Humidity, and IAQ Vol. I-1-2 Thermal Comfort of Neutral Ventilated Buildings in Different Cities1 Xiaojiang Ye Zhaoxiao Zhou Zhiwei Lian Yuangao Wen Zhengping Zhou Chunxiao...

  17. Buildings, Commissioning, Efficiency, Comfort, and CO2 

    E-Print Network [OSTI]

    Claridge, D. E.

    2006-01-01

    .6% of world CO2 emissions)? US commercial sector use ~50% of world commercial use? Asia today 10-20% of world commercial use 2055200514 7 Billion of Tons of Carbon Emitted per Year 1955 0 C Flat path Historicalemissions 1.9 ?Æ?Æ 2105 14 GtC/y7 GtC/y Seven..., Commissioning, Efficiency, Comfort, and CO2 Asian Pacific Building Commissioning Conference ICEBONovember 8, 2006Shenzhen, ChinaPresented ByDavid E. ClaridgeEnergy Systems LaboratoryTexas A&M University Commissioning New Buildings Beginnings Building Handover...

  18. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    in the Netherlands, Indoor Air 2, 127 – 136. BuildingPaliaga, G. (2009) Moving air for comfort. ASHRAE Journal,ventilation system on perceived air quality, Indoor Air

  19. Air movement as an energy efficient means toward occupant comfort

    E-Print Network [OSTI]

    Arens, Edward; Zhang, Hui; Pasut, Wilmer; Zhai, Yongchao; Hoyt, Tyler; Huang, Li

    2013-01-01

    M. and E. Arens E. 1993. Air movement and thermal comfort.1994. Locally controlled air movement preferred in warmR, Bittencourt L. 2010. Air movement acceptability limits

  20. Simulations of Sizing and Comfort Improvements for Residential

    E-Print Network [OSTI]

    LBNL 47309 1 Simulations of Sizing and Comfort Improvements for Residential Forced-Air Heating...................................................................................... 18 PEAK DEMAND AND POWER CONSUMPTION

  1. Singing River Electric Power Association- Comfort Advantage Home Program

    Broader source: Energy.gov [DOE]

    Singing River Electric Power Association provides rebates on energy efficiency measures in new homes and heat pumps that meet Comfort Advantage weatherization standards. To qualify for this rebate...

  2. Looking for comfort: heroines, readers, and Jane Austen's novels 

    E-Print Network [OSTI]

    Himes, Amanda E.

    2007-04-25

    Comfort�with its various connotations of physical ease, wealth, independence, and service�is an important concept to Jane Austen, who uses comfort in her novels to both affirm and challenge accepted women�s ...

  3. Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01

    Maintaining comfort in a home can be challenging in hot-humid climates. At the common summer temperature set point of 75 degrees F, the perceived air temperature can vary by 11 degrees F because higher indoor humidity reduces comfort. Often the air conditioner (AC) thermostat set point is lower than the desirable cooling level to try to increase moisture removal so that the interior air is not humid or "muggy." However, this method is not always effective in maintaining indoor relative humidity (RH) or comfort. In order to quantify the performance of a combined whole-house dehumidifier (WHD) AC system, researchers from the U.S. Department of Energy's Building America team Consortium of Advanced Residential Buildings (CARB) monitored the operation of two Lennox AC systems coupled with a Honeywell DH150 TrueDRY whole-house dehumidifier for a six-month period. By using a WHD to control moisture levels (latent cooling) and optimizing a central AC to control temperature (sensible cooling), improvements in comfort can be achieved while reducing utility costs. Indoor comfort for this study was defined as maintaining indoor conditions at below 60% RH and a humidity ratio of 0.012 lbm/lbm while at common dry bulb set point temperatures of 74 degrees -80 degrees F. In addition to enhanced comfort, controlling moisture to these levels can reduce the risk of other potential issues such as mold growth, pests, and building component degradation. Because a standard AC must also reduce dry bulb air temperature in order to remove moisture, a WHD is typically needed to support these latent loads when sensible heat removal is not desired.

  4. Supervisory control for energy savings and thermal comfort in commercial building HVAC systems.

    E-Print Network [OSTI]

    Martin, Rodney A; Federspiel, Clifford C Ph.D.; Auslander, David M Ph.D.

    2002-01-01

    the goal of reduced energy and thermal comfort has been pro-treat the issues of energy, thermal comfort, and commercialControl for Energy Savings and Thermal Comfort in Commercial

  5. Energy-efficient comfort with a heated/cooled chair: Results from human subject tests

    E-Print Network [OSTI]

    Pasut, Wilmer; Zhang, Hui; Arens, Ed; Zhai, Yongchao

    2015-01-01

    of the experiment. HVAC energy and thermal environment arerequirements for thermal comfort. Energy and Buildings 2002;in offices for thermal comfort and energy savings. . 2013. [

  6. Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling

    Office of Energy Efficiency and Renewable Energy (EERE)

    Discusses comfort model enhancement/validation, climate system efficiency parameters and system trade off, and powertrain mode operation changes to further vehicle energy saving while preserving occupant comfort.

  7. Energy saving and improved comfort by increased air movement

    E-Print Network [OSTI]

    Schiavon, Stefano; Melikov, Arsen

    2008-01-01

    Energy saving and improved comfort by increased air movementIn this study, the potential saving of cooling energy bysystem. A cooling energy saving between 17% and 48% and a

  8. Improving Home Efficiency and Comfort Right After a Move | Department...

    Energy Savers [EERE]

    up in the first place, hopefully making this job a little less cumbersome and dangerous. The next big lessons we learned about keeping our house comfortable came during an...

  9. Design Tools for Evaluating Alternative Strategies' Impact on Human Comfort 

    E-Print Network [OSTI]

    Holder, L. M. III; Hart, M. N.

    1985-01-01

    psychrometric chart enhanced with an expanded comfort zone plot based on multiple energy conservation strategies. Average local weather conditions can be plotted by month on the psychrometric chart to indicate which design alternatives have the greatest...

  10. Towards comfortable and walkable cities : spatially resolved outdoor thermal comfort analysis linked to travel survey-based human activity schedules

    E-Print Network [OSTI]

    Rakha, Tarek

    2015-01-01

    Outdoor thermal comfort can influence human powered mobility choices, namely walking and biking. As more people are living in cities than ever before in human history, the urban environments we erect and populate are ...

  11. Process Control on Workplace Level - User Comfort Energy Optimalization 

    E-Print Network [OSTI]

    Verhaart, J.; Zeiler, W.; Boxem, G.

    2013-01-01

    nano grid, connected to a micro-grid on building level and eventually to a Smart grid. This way, comfort demand is matched directly to energy supply in a multi-agent system, making the most effective use of available resources. The article provides...

  12. Affordable comfort 95 - investing in our energy future

    SciTech Connect (OSTI)

    NONE

    1995-12-31

    This report describes the topics from the conference on Affordable Comfort, held March 26-31, 1995. Topics are concerned with energy efficiency in homes, retrofitting, weatherization, and monitoring of appliances, heating, and air conditioning systems for performance, as well as topics on electric utilities.

  13. Ductless Mini-Split Heat Pump Comfort Evaluation

    SciTech Connect (OSTI)

    Roth, K.; Sehgal, N.; Akers, C.

    2013-03-01

    Field tests were conducted in two homes in Austin, TX to evaluate the comfort performance of ductless mini-split heat pumps (DMSHPs), measuring temperature and relative humidity measurements in four rooms in each home before and after retrofitting a central HVAC system with DMSHPs.

  14. Ductless Mini-Split Heat Pump Comfort Evaluation

    SciTech Connect (OSTI)

    Roth, K.; Sehgal, N.; Akers, C.

    2013-03-01

    Field tests were conducted in two homes in Austin, TX, to evaluate the comfort performance of ductless minisplit heat pumps (DMSHPs), measuring temperature and relative humidity measurements in four rooms in each home before and after retrofitting a central HVAC system with DMSHPs.

  15. Effects of Duct Improvement and ENERGYSTAR Equipment on Comfort and Energy Efficiency

    E-Print Network [OSTI]

    LBNL 43723 Effects of Duct Improvement and ENERGYSTAR Equipment on Comfort and Energy Efficiency I................................................................................................................................................ 5 DUCT LEAKAGE AND ENERGYSTAR EQUIPMENT EFFECTS ON COMFORT .................................... 5).......................................................................................................9 Duct leakage by pressurization

  16. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Air conditioning, comfort and energy in India’s CommertialAir conditioning, comfort and energy in India’s Commertialand energy consumption across commercial, office and public buildings in India [

  17. Energy-efficient comfort with a heated/cooled chair: Results from human subject tests

    E-Print Network [OSTI]

    Pasut, Wilmer; Zhang, Hui; Arens, Ed; Zhai, Yongchao

    2015-01-01

    Technology Roadmap. Energy-efficient Buildings: Heating andenergy-efficient approaches to thermal comfort using room air motion. Building

  18. Improving efficiency of a vehicle HVAC system with comfort modeling, zonal design, and thermoelectric devices

    Office of Energy Efficiency and Renewable Energy (EERE)

    Discusses progress on thermal comfort modeling and detailed design, fabrication, and component/system-level testing of TE architecture

  19. Opportunities to save energy and improve comfort by using wireless sensor networks in buildings

    E-Print Network [OSTI]

    Wang, Danni; Arens, Edward; Federspiel, Cliff

    2003-01-01

    realization of ultra-low energy wireless sensor networks.TO SAVE ENERGY AND IMPROVE COMFORT BY USING WIRELESS SENSOR

  20. Technology Solutions Case Study: Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier

    SciTech Connect (OSTI)

    2013-11-01

    In order to quantify the performance of a combined whole-house dehumidifier (WHD) AC system, researchers from the Consortium of Advanced Residential Buildings (CARB) team monitored the operation of two Lennox AC systems coupled with a Honeywell DH150 TrueDRY whole-house dehumidifier for a six-month period. By using a WHD to control moisture levels (latent cooling) and optimizing a central AC to control temperature (sensible cooling), improvements in comfort can be achieved while reducing utility costs. Indoor comfort for this study was defined as maintaining indoor conditions at below 60% RH and a humidity ratio of 0.012 lbm/lbm while at common dry bulb set point temperatures of 74°-80°F. In addition to enhanced comfort, controlling moisture to these levels can reduce the risk of other potential issues such as mold growth, pests, and building component degradation. Because a standard AC must also reduce dry bulb air temperature in order to remove moisture, a WHD is typically needed to support these latent loads when sensible heat removal is not desired.

  1. Assessment of Energy Use and Comfort in Buildings Utilizing Mixed-Mode Controls with Radiant Cooling

    E-Print Network [OSTI]

    Borgeson, Samuel Dalton

    2010-01-01

    Conditioning and the Low Carbon Cooling Challenge. Windsor,Conditioning and the Low Carbon Cooling Challenge. Windsor,occupant comfort and cooling loads in naturally ventilated

  2. Comfort standards and variation in exceedance for mixed-mode buildings.

    E-Print Network [OSTI]

    Brager, Gail; Borgeson, Sam

    2010-01-01

    comfort exceedance: lighting power density (W/m 2 ): low ¼example, both lighting and equipment power density defaultand low lighting and equipment power density values were

  3. Human thermal sensation and comfort in transient and non-uniform thermal environments

    E-Print Network [OSTI]

    Zhang, H.

    2003-01-01

    the Human and the Thermal Environment." ASHRAE TransactionA field Study of Thermal Environment and Comfort in OfficeISO 7730 - Moderate Thermal Environments - Determination of

  4. Energy-efficient comfort with a heated/cooled chair: Results from human subject tests

    E-Print Network [OSTI]

    Pasut, Wilmer; Zhang, Hui; Arens, Ed; Zhai, Yongchao

    2015-01-01

    comfort and the office thermal environment in rooms withand non-uniform thermal environments. 2003. [25] Parsons KC.satisfied with their thermal environment [3], a survey of

  5. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Windsor Conference - Air Conditioning and the Low CarbonA. , Thomas, PC (2010). Air conditioning, comfort and energyAmerica's Romance with Air- Conditioning. Washington, D.C.

  6. Sun, Wind, and Comfort A Study of Open Spaces and Sidewalks in Four Downtown Areas

    E-Print Network [OSTI]

    1984-01-01

    as o f Bibliography Sun, Wind, and Comfort Arens, Edward, "for an Acceptable Wind Environment," TransportationI) 1970. Gandemer, J. "Wind Environment Around Buildings:

  7. Classified Comfort Noise Generation for Efficient Voice Transmission Yasheng Qian, Wei-Shou Hsu, Peter Kabal

    E-Print Network [OSTI]

    Kabal, Peter

    ); coded speech and comfort noise at the decoder (bottom). The aim of the Comfort Noise Generator (CNG with a reduced rate relative to active speech. CNG systems do not need to exactly reproduce the background noise waveform. Dif- 225 September 17-21, Pittsburgh, Pennsylvania INTERSPEECH 2006 - ICSLP #12;ferent CNG

  8. Comfort-Aware Home Energy Management Under Market-Based Demand-Response

    E-Print Network [OSTI]

    Boutaba, Raouf

    Comfort-Aware Home Energy Management Under Market-Based Demand-Response Jin Xiao, Jian Li, Raouf-compatible with market-based Demand-Response programs under explicit user comfort constraints. Theoretical analysis aside pricing and consumption data in South Korea. Index Terms--smart grid, demand-response, energy management I

  9. The Effects of Indoor Air Velocity on Occupant Thermal Comfort in Winter 

    E-Print Network [OSTI]

    Wang, J.; Chen, L.

    2006-01-01

    In China the thermal comfort standard that regulates the indoor air velocity cannot exceed 0.15m/s in winter. But many scholars doubt this regulation. This paper presents the results of an experimental research project on thermal comfort...

  10. Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living Space in Summer

    E-Print Network [OSTI]

    Miyashita, Yasushi

    Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living and total heat exchanger in terms of both energy conservation and thermal comfort in summer. 1. COP

  11. Thermal Comfort Study in a Naturally Ventilated Residential Building in a Tropical Hot-Humid Climate Region 

    E-Print Network [OSTI]

    Soebarto, V. I.; Handjarinto, S.

    1998-01-01

    This paper presents a thermal comfort study in a naturally ventilated residential building located in a tropical hot-humid climate region. The specific objective of this study is to investigate whether thermal comfort in this house can be achieved...

  12. Energy-efficient comfort with a heated/cooled chair: Results from human subject tests

    E-Print Network [OSTI]

    Pasut, Wilmer; Zhang, Hui; Arens, Ed; Zhai, Yongchao

    2015-01-01

    Technology Roadmap. Energy-efficient Buildings: Heating andH, Zhai Y. Enabling energy-efficient approaches to thermalEnergy-efficient comfort with a heated/cooled chair: results

  13. Optimal Indoor Air Temperature Considering Energy Savings and Thermal Comfort in the Shanghai Area 

    E-Print Network [OSTI]

    Yao, Y.; Lian, Z.; Hou, Z.; Liu, W.

    2006-01-01

    Indoor air temperature is the most important control parameter in air conditioning systems. It not only impacts the thermal comfort of occupants, but also also greatly affects the energy consumption in air conditioning systems. The lower the indoor...

  14. Field experiments on occupant comfort and office thermal environments in a hot-humid climate

    E-Print Network [OSTI]

    de Dear, Richard; Fountain, M.

    1994-01-01

    responses to the thermal environment in offices. In Indoorto the thermal environment. ASHRAE Transactions 92(2B):COMFORT AND OFFICE THERMAL ENVIRONMENTS IN A HOT-HUMID

  15. Safety and Thermal Comfort Concerns for Active Travel to School: As Mediators and Correlates 

    E-Print Network [OSTI]

    Kim, Young Jae

    2014-12-03

    Children’s active travel to school (ATS), considered a regular source of physical activity, is influenced heavily by their parents’ perceived barriers to ATS such as safety and thermal comfort concerns. This dissertation focuses on environmental...

  16. Assessment of Energy Use and Comfort in Buildings Utilizing Mixed-Mode Controls with Radiant Cooling

    E-Print Network [OSTI]

    Borgeson, Samuel Dalton

    2010-01-01

    to thermal comfort-Occupant behavior and energy use inThe ability to model occupant behavior, particularly windowA literature review of occupant behavior with respect to

  17. Improving the Fanger model's thermal comfort predictions for naturally ventilated spaces

    E-Print Network [OSTI]

    Truong, Phan Hue

    2010-01-01

    The Fanger model is the official thermal comfort model in U.S. and international standards and is based on the heat balance of the human body with the environment. This investigation focuses on re-specifying the parameters ...

  18. A Study on the Effects of Unwanted Air Infiltration on Thermal Comfort at an Airport Terminal 

    E-Print Network [OSTI]

    Lander, B.; Wei, G.; Claridge, D.; Caeiro, J.

    2009-01-01

    the comfort levels that people have become accustomed to in public buildings. Airport terminal buildings, such as the one in this study, built before the current energy awareness that is prevalent today have many problems associated with air infiltration...

  19. Energy-efficient comfort with a heated/cooled chair: Results from human subject tests

    E-Print Network [OSTI]

    Pasut, Wilmer; Zhang, Hui; Arens, Ed; Zhai, Yongchao

    2015-01-01

    for thermal comfort. Energy and Buildings 2002;34:593-9.IEA. Technology Roadmap. Energy-efficient Buildings: HeatingH, Arens E, Webster T. Energy Savings from Extended Air

  20. Modeling the comfort effects of short-wave solar radiation indoors

    E-Print Network [OSTI]

    Arens, Edward; Hoyt, Tyler; Zhou, Xin; Huang, Li; Zhang, Hui; Schiavon, Stefano

    2015-01-01

    Parsons K. The effects of solar radiation and black body re-K. The effects of solar radiation on thermal comfort.exposed to the solar radiation - a generalised algorithm.

  1. Field Analysis of Thermal Comfort in Two Energy Efficient Office Buildings in Malaysia 

    E-Print Network [OSTI]

    Qahtan, A. T.; Keumala, N.; Rao, S. P.; Samad, Z. A.

    2010-01-01

    with exception of an air movement in the workspace of both buildings. The result suggested workers? preferable condition. Keywords: Building Energy Efficiency; Thermal comfort; and Occupant Satisfaction. INTRODUCTION In a tropical climate... that mentioned earlier. The significance of this paper is that measuring the thermal comfort parameters supported by surveying the occupants? satisfaction in these two EE buildings would be as evaluation to upcoming EE buildings in tropical region. MALAYSIA...

  2. Energy and visual comfort performance of electrochromic windowswith overhangs

    SciTech Connect (OSTI)

    Lee, E.S.; Tavil, A.

    2005-11-03

    DOE-2 building energy simulations were conducted to determine if there were practical architectural and control strategy solutions that would enable electrochromic (EC) windows to significantly improve visual comfort without eroding energy-efficiency benefits. EC windows were combined with overhangs since opaque overhangs provide protection from direct sun which EC windows are unable to do alone. The window wall was divided into an upper and lower aperture so that various combinations of overhang position and control strategies could be considered. The overhang was positioned either at the top of the upper window aperture or between the upper and lower apertures. Overhang depth was varied. EC control strategies were fully bleached at all times, modulated based on incident vertical solar radiation limits, or modulated to meet the design work plane illuminance with daylight. The EC performance was compared to a state-of-the-art spectrally selective low-e window with the same divided window wall, window size, and overhang as the EC configuration. The reference window was also combined with an interior shade which was manually deployed to control glare and direct sun. Both systems had the same daylighting control system to dim the electric lighting. Results were given for south-facing private offices in a typical commercial building. In hot and cold climates such as Houston and Chicago, EC windows with overhangs can significantly reduce the average annual daylight glare index (DGI) and deliver significant annual energy use savings if the window area is large. Total primary annual energy use was increased by 2-5% for moderate-area windows in either climate but decreased by 10% in Chicago and 5% in Houston for large-area windows. Peak electric demand can be reduced by 7-8% for moderate-area windows and by 14-16% for large-area windows in either climate. Energy and peak demand reductions can be significantly greater if the reference case does not have exterior shading or state-of-the-art glass.

  3. WESBES: A Wireless Embedded Sensor for Improving Human Comfort Metrics using Temporospatially Correlated Data

    SciTech Connect (OSTI)

    Joel Hewlett; Milos Manic; Craig Rieger

    2012-08-01

    When utilized properly, energy management systems (EMS) can offer significant energy savings by optimizing the efficiency of heating, ventilation, and air-conditioning (HVAC) systems. However, difficulty often arises due to the constraints imposed by the need to maintain an acceptable level of comfort for a building’s occupants. This challenge is compounded by the fact that human comfort is difficult to define in a measurable way. One way to address this problem is to provide a building manager with direct feedback from the building’s users. Still, this data is relative in nature, making it difficult to determine the actions that need to be taken, and while some useful comfort correlations have been devised, such as ASHRAE’s Predicted Mean Vote index, they are rules of thumb that do not connect individual feedback with direct, diverse feedback sensing. As they are a correlation, quantifying effects of climate, age of buildings and associated defects such as draftiness, are outside the realm of this correlation. Therefore, the contribution of this paper is the Wireless Embedded Smart Block for Environment Sensing (WESBES); an affordable wireless sensor platform that allows subjective human comfort data to be directly paired with temporospatially correlated objective sensor measurements for use in EMS. The described device offers a flexible research platform for analyzing the relationship between objective and subjective occupant feedback in order to formulate more meaningful measures of human comfort. It could also offer an affordable and expandable option for real world deployment in existing EMS.

  4. Thermal sensation and comfort models for non-uniform and transient environments: Part I: local sensation of individual body parts

    E-Print Network [OSTI]

    Zhang, Hui; Arens, Edward; Huizenga, Charlie; Han, Taeyoung

    2009-01-01

    comfort and office thermal environment in rooms withand non-uniform thermal environments, Ph. D. Thesis,1. Introduction Thermal environments are often asymmetrical,

  5. Integrated PEV Charging Solutions and Reduced Energy for Occupant Comfort (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01

    Brochure on Vehicle Testing and Integration Facility, featuring the Vehicle Modification Facility, Vehicle Test Pad and ReCharge Integrated Demonstration System. Plug-in electric vehicles (PEVs) offer the opportunity to shift transportation energy demands from petroleum to electricity, but broad adoption will require integration with other systems. While automotive experts work to reduce the cost of PEVs, fossil fueled cars and trucks continue to burn hundreds of billions of gallons of petroleum each year - not only to get from point A to point B, but also to keep passengers comfortable with air conditioning and heat. At the National Renewable Energy Laboratory (NREL), three installations form a research laboratory known as the Vehicle Testing and Integration Facility (VTIF). At the VTIF, engineers are developing strategies to address two separate but equally crucial areas of research: meeting the demands of electric vehicle-grid integration and minimizing fuel consumption related to vehicle climate control. Part of NREL's Center for Transportation Technologies and Systems (CTTS), the VTIF is dedicated to renewable and energy efficient solutions. This facility showcases technology and systems designed to increase the viability of sustainably powered vehicles. NREL researchers instrument every class of on-road vehicle, conduct hardware and software validation for electric vehicle (EV) components and accessories, and develop analysis tools and technology for the Department of Energy, other government agencies and industry partners. Research conducted at the VTIF examines the interaction of building energy systems, utility grids, renewable energy sources and PEVs, integrating energy management solutions, and maximizing potential greenhouse gas (GHG) reduction, while smoothing the transition and reducing costs for EV owners. NREL's collaboration with automakers, charging station manufacturers, utilities and fleet operators to assess technologies using VTIF resources is designed to enable PEV communication with the smart grid and create opportunities for vehicles to play an active role in building and grid management. Ultimately, this creates value for the vehicle owner and will help renewables be deployed faster and more economically, making the U.S. transportation sector more flexible and sustainable.

  6. The Spacing of Ceiling Fans for Human Comfort in Warm Temperature Conditions 

    E-Print Network [OSTI]

    Spain, S.

    1987-01-01

    FOR HUMAN COMFORT IN WARM TEMPERATURE CONDITIONS Syd Spain, Ph.D. Research Specialist CRS Sirrine, Inc. Houston, Tx ABSTRACT Airspeed tests of a commerci a1 1 y popular 52 in. ceiling fan operating at a low speed of 155 fpm provided sufficient...

  7. A Very Comfortable, Energy-Efficient Home: How You Can Make It Happen!

    ScienceCinema (OSTI)

    Dr. Jeff Christian

    2010-09-01

    Dr. Jeff Christian, Oak Ridge National Laboratory, Oak Ridge, TN, January 14, 2010. The first in a series of Sustainability at Home seminars that tap ORNL expertise to help you move toward sustainability-while increasing your comfort and, over time, decreasing your costs at home.

  8. Phase-Change Frame Walls (PCFWs) for Peak Demand Reduction, Load Shifting, Energy Conservation and Comfort 

    E-Print Network [OSTI]

    Medina, M.; Stewart, R.

    2008-01-01

    of the wall via the high latent heats of the PCMs. The main goal of this study was to determine the feasibility of using PCFWs for peak air conditioning demand reduction, thermal load shifting, energy conservation, and thermal comfort. The results showed...

  9. Comfort Conditions in a Habitat for Humanity House in Central Texas 

    E-Print Network [OSTI]

    Kootin-Sanwu, V.; Haberl, J. S.; Kim, B.

    2000-01-01

    This paper presents preliminary results of an analysis of measured comfort conditions for a Habitat for humanity house in central Texas. In the case study house indoor-outdoor temperature, humidity and C02 levels have been monitored in an attempt...

  10. Comfort, Indoor Air Quality, and Energy Consumption in Low Energy Homes

    SciTech Connect (OSTI)

    Englemann, P.; Roth, K.; Tiefenbeck, V.

    2013-01-01

    This report documents the results of an in-depth evaluation of energy consumption and thermal comfort for two potential net zero-energy homes (NZEHs) in Massachusetts, as well as an indoor air quality (IAQ) evaluation performed in conjunction with Lawrence Berkeley National Laboratory (LBNL).

  11. Field Studies of Subjective Effects on Thermal Comfort in a University Classroom 

    E-Print Network [OSTI]

    Wang, J.; Wang, Z.

    2006-01-01

    Two field studies were conducted in a university classroom in the autumn of 2004 in Harbin. The objective of these studies was to assess the thermal conditions and the subjective effects on occupant thermal comfort. A field study was carried out...

  12. NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes.

    E-Print Network [OSTI]

    Laboratory (NREL) evalu- ated the performance of high sidewall air supply inlets and confirmed fluid dynamics modeling, NREL scientists tested the performance of high sidewall supply air jets over, ren.anderson@nrel.gov Reference: Ridouance, E.H. (2011). Evaluation of Air Mixing and Thermal Comfort

  13. An Archaeological Survey of an Alternate Dredge Decant Line and Drop Structure in Northern Calhoun County, Texas for the Alcoa World Alumina LLC, Point Comfort Operations Located in Point Comfort, Texas 

    E-Print Network [OSTI]

    Moore, William

    2015-07-07

    An archaeological survey of the location of the site of a proposed dredge decant line and drop structure in northern Calhoun County, Texas was performed by Brazos Valley Research Associates (BVRA) on April 30, 2003 and May 22, 2003 under United...

  14. Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California

    E-Print Network [OSTI]

    Shendell, Derek Garth

    2010-01-01

    materials, and air pollution and thermal comfort monitoringpollution, with the age of the filter a relevant parameter. Provision of thermal

  15. CHI 99 15-20 MAY 1999 Papers Testing Pointing Device Performance and User

    E-Print Network [OSTI]

    MacKenzie, Scott

    the IS0 standard and recommendationsfor improvement. Keywords Pointing devices, ergonomic evaluation, IS0 of performance and comfort. In this paper we evaluate the scientific validity and practicality and a touchpad. Using a between-subjectsdesign, evaluation of performanceusing the measureof throughput was done

  16. Energy Performance and Comfort Level in High Rise and Highly Glazed Office Buildings 

    E-Print Network [OSTI]

    Bayraktar, M.; Perino, M.; Yilmaz, A. Z.

    2010-01-01

    International Conference for Enhanced Building Operations, Kuwait, October 26-28, 2010 efficiency and comfort solutions. A parametric study has been adopted and the method has been applied to a case study. The calculations were carried out by Energy... International Conference for Enhanced Building Operations, Kuwait, October 26-28, 2010 5 different glazing alternatives were considered. Glazings were obtained from ASHRAE data sets catalogue in EnergyPlus. Thermal and optical properties of the selected...

  17. Lighting energy savings potential of split-pane electrochromic windows controlled for daylighting with visual comfort

    SciTech Connect (OSTI)

    Software, Anyhere; Fernandes, Luis; Lee, Eleanor; Ward, Greg

    2013-03-15

    A simulation study was conducted to evaluate lighting energy savings of split-pane electrochromic (EC) windows controlled to satisfy key visual comfort parameters. Using the Radiance lighting simulation software, interior illuminance and luminance levels were computed for a south-facing private office illuminated by a window split into two independently-controlled EC panes. The transmittance of these was optimized hourly for a workplane illuminance target while meeting visual comfort constraints, using a least-squares algorithm with linear inequality constraints. Blinds were successively deployed until visual comfort criteria were satisfied. The energy performance of electrochromics proved to be highly dependent on how blinds were controlled. With hourly blind position adjustments, electrochromics showed significantly higher (62percent and 53percent, respectively without and with overhang) lighting energy consumption than clear glass. With a control algorithm designed to better approximate realistic manual control by an occupant, electrochromics achieved significant savings (48percent and 37percent, respectively without and with overhang). In all cases, energy consumption decreased when the workplace illuminance target was increased. In addition, the fraction of time during which the occupant had an unobstructed view of the outside was significantly greater with electrochromics: 10 months out of the year versus a handful of days for the reference case.

  18. Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling[Thermoelectric (TE) HVAC

    Broader source: Energy.gov [DOE]

    Discusses results from TE HVAC project to add detail to a human thermal comfort model and further allow load reduction in the climate control energy through a distributed TE network

  19. Technology Solutions Case Study: A Homeowner’s Guide to Window Air Conditioner Installation for Efficiency and Comfort

    SciTech Connect (OSTI)

    C. Booten

    2013-06-01

    This fact sheet offers a step-by-step guide to proper installation of window air conditioning units, in order to improve energy efficiency, cost savings, and comfort for homeowners.

  20. Measured Cooling Season Results Relating the Impact of Mechanical Ventilation on Energy, Comfort, and Indoor Air Quality in Humid Climates

    SciTech Connect (OSTI)

    Martin, Eric; Amos, Bryan; McIlvaine, Janet; Chasar, David; Widder, Sarah H.; Fonorow, Ken

    2014-08-22

    Conference Paper for ACEEE Summer Study in Buildings discussing results to date of a project evaluating the impact of ventialtion on energy use, comfort, durability, and cost in the hot humid climate.

  1. A Study on Zoning Regulations' Impact on Thermal Comfort Conditions in Non-conditioned Apartment Buildings in Dhaka City 

    E-Print Network [OSTI]

    Islam, Saiful

    2012-02-14

    of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2011 Major Subject: Architecture A STUDY ON ZONING REGULATIONS? IMPACT ON THERMAL COMFORT CONDITIONS IN NON-CONDITIONED APARTMENT BUILDINGS IN DHAKA CITY A Dissertation... Culp Liliana Beltran Shannon Smith Van Zandt Head of Department, Ward Wells December 2011 Major Subject: Architecture iii ABSTRACT A Study on Zoning Regulations? Impact on Thermal Comfort Conditions in Non- conditioned...

  2. Characterization of Energy Savings and Thermal Comfort Improvements Derived from Using Interior Storm Windows

    SciTech Connect (OSTI)

    Knox, Jake R.; Widder, Sarah H.

    2013-09-30

    This field study of a single historic home in Seattle, WA documents the performance of Indow Windows’s interior storm window inserts. Energy use and the temperature profile of the house were monitored before and after the installation of the window inserts and changes in the two recorded metrics were examined. Using the defined analysis approach, it was determined that the interior storm windows produced a 22% reduction of the HVAC energy bill and had an undetermined effect on the thermal comfort in the house. Although there was no measurable changes in the thermal comfort of the house, the occupant noted the house to be “warmer in the winter and cooler in the summer” and that the “temperatures are more even (throughout the house).” The interior storm windows were found to be not cost effective, largely due to the retrofits completed on its heating system. However, if the economic analysis was conducted based on the old heating system, a 72% efficient oil fired furnace, the Indow Windows proved to be economical and had a simple payback period of 9.0 years.

  3. Comfort and HVAC Performance for a New Construction Occupied Test House in Roseville, California

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01

    K. Hovnanian(R) Homes(R) constructed a 2,253-ft2 single-story slab-on-grade ranch house for an occupied test house (new construction) in Roseville, California. One year of monitoring and analysis focused on the effectiveness of the space conditioning system at maintaining acceptable temperature and relative humidity levels in several rooms of the home, as well as room-to-room differences and the actual measured energy consumption by the space conditioning system. In this home, the air handler unit (AHU) and ducts were relocated to inside the thermal boundary. The AHU was relocated from the attic to a mechanical closet, and the ductwork was located inside an insulated and air-sealed bulkhead in the attic. To describe the performance and comfort in the home, the research team selected representative design days and extreme days from the annual data for analysis. To ensure that temperature differences were within reasonable occupant expectations, the team followed Air Conditioning Contractors of America guidance. At the end of the monitoring period, the occupant of the home had no comfort complaints in the home. Any variance between the modeled heating and cooling energy and the actual amounts used can be attributed to the variance in temperatures at the thermostat versus the modeled inputs.

  4. Comfort and HVAC Performance for a New Construction Occupied Test House in Roseville, California

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01

    K. Hovnanian® Homes constructed a 2,253-ft2 single-story slab-on-grade ranch house for an occupied test house (new construction) in Roseville, California. One year of monitoring and analysis focused on the effectiveness of the space conditioning system at maintaining acceptable temperature and relative humidity levels in several rooms of the home, as well as room-to-room differences and the actual measured energy consumption by the space conditioning system. In this home, the air handler unit (AHU) and ducts were relocated to inside the thermal boundary. The AHU was relocated from the attic to a mechanical closet, and the ductwork was located inside an insulated and air-sealed bulkhead in the attic. To describe the performance and comfort in the home, the research team selected representative design days and extreme days from the annual data for analysis. To ensure that temperature differences were within reasonable occupant expectations, the team followed Air Conditioning Contractors of America guidance. At the end of the monitoring period, the occupant of the home had no comfort complaints in the home. Any variance between the modeled heating and cooling energy and the actual amounts used can be attributed to the variance in temperatures at the thermostat versus the modeled inputs.

  5. Monitored Energy Performance of Electrochromic Windows Controlledfor Daylight and Visual Comfort

    SciTech Connect (OSTI)

    Lee, Eleanor S.; DiBartolomeo, Dennis L.; Klems, Joseph; Yazdanian, Mehry; Selkowitz, Stephen E.

    2005-09-23

    A 20-month field study was conducted to measure the energy performance of south-facing large-area tungsten-oxide absorptive electrochromic (EC) windows with a broad switching range in a private office setting. The EC windows were controlled by a variety of means to bring in daylight while minimizing window glare. For some cases, a Venetian blind was coupled with the EC window to block direct sun. Some tests also involved dividing the EC window wall into zones where the upper EC zone was controlled to admit daylight while the lower zone was controlled to prevent glare yet permit view. If visual comfort requirements are addressed by EC control and Venetian blinds, a 2-zone EC window configuration provided average daily lighting energy savings of 10 {+-} 15% compared to the reference case with fully lowered Venetian blinds. Cooling load reductions were 0 {+-} 3%. If the reference case assumes no daylighting controls, lighting energy savings would be 44 {+-} 11%. Peak demand reductions due to window cooling load, given a critical demand-response mode, were 19-26% maximum on clear sunny days. Peak demand reductions in lighting energy use were 0% or 72-100% compared to a reference case with and without daylighting controls, respectively. Lighting energy use was found to be very sensitive to how glare and sun is controlled. Additional research should be conducted to fine-tune EC control for visual comfort based on solar conditions so as to increase lighting energy savings.

  6. Homeowner's Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet), Building America Case Study: Technology Solutions for Existing Homes, Building Technologies Office (BTO)

    SciTech Connect (OSTI)

    Not Available

    2013-06-01

    This fact sheet offers a step-by-step guide to proper installation of window air conditioning units, in order to improve efficiency and comfort for homeowners.

  7. Visual Comfort Analysis of Innovative Interior and Exterior Shading Systems for Commercial Buildings using High Resolution Luminance Images

    SciTech Connect (OSTI)

    Konis, Kyle; Lee, Eleanor; Clear, Robert

    2011-01-11

    The objective of this study was to explore how calibrated high dynamic range (HDR) images (luminance maps) acquired in real world daylit environments can be used to characterize, evaluate, and compare visual comfort conditions of innovative facade shading and light-redirecting systems. Detailed (1536 x 1536 pixel) luminance maps were time-lapse acquired from two view positions in an unoccupied full scale testbed facility. These maps were analyzed using existing visual comfort metrics to quantify how innovative interior and exterior shading systems compare to conventional systems under real sun and sky conditions over a solstice-to-solstice test interval. The results provide a case study in the challenges and potential of methods of visualizing, evaluating and summarizing daily and seasonal variation of visual comfort conditions computed from large sets of image data.

  8. Energy-Efficient and Comfortable Buildings through Multivariate Integrated Control (ECoMIC)

    SciTech Connect (OSTI)

    Birru, Dagnachew [Philips Electronics North America Corporation, Andover, MA (United States); Wen, Yao-Jung [Philips Electronics North America Corporation, Andover, MA (United States); Rubinstein, Francis M. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Clear, Robert D. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2013-10-28

    This project aims to develop an integrated control solution for enhanced energy efficiency and user comfort in commercial buildings. The developed technology is a zone-based control framework that minimizes energy usage while maintaining occupants’ visual and thermal comfort through control of electric lights, motorized venetian blinds and thermostats. The control framework is designed following a modular, scalable and flexible architecture to facilitate easy integration with exiting building management systems. The control framework contains two key algorithms: 1) the lighting load balancing algorithm and 2) the thermostat control algorithm. The lighting load balancing algorithm adopts a model-based closed-loop control approach to determine the optimal electric light and venetian blind settings. It is formulated into an optimization problem with minimizing lighting-related energy consumptions as the objective and delivering adequate task light and preventing daylight glare as the constraints. The thermostat control algorithm is based on a well-established thermal comfort model and formulated as a root-finding problem to dynamically determine the optimal thermostat setpoint for both energy savings and improved thermal comfort. To address building-wide scalability, a system architecture was developed for the zone-based control technology. Three levels of services are defined in the architecture: external services, facility level services and zone level services. The zone-level service includes the control algorithms described above as well as the corresponding interfaces, profiles, sensors and actuators to realize the zone controller. The facility level services connect to the zones through a backbone network, handle supervisory level information and controls, and thus facilitate building-wide scalability. The external services provide communication capability to entities outside of the building for grid interaction and remote access. Various aspects of the developed control technology were evaluated and verified through both simulations and testbed implementations. Simulations coupling a DOE medium office reference building in EnergyPlus building simulation software and a prototype controller in Matlab were performed. During summer time in a mixed-humid climate zone, the simulations revealed reductions of 27% and 42% in electric lighting load and cooling load, respectively, when compared to an advanced base case with daylight dimming and blinds automatically tilted to block direct sun. Two single-room testbeds were established. The testbed at Philips Lighting business building (Rosemont, IL) was designed for quantifying energy performance of integrated controls. This particular implementation achieved 40% and 79% savings on lighting and HVAC energy, respectively, compared to a relatively simple base case operated on predefined schedules. While the resulting energy savings was very encouraging, it should be noted that there may be several caveats associated with it. 1) The test was run during late spring and early summer, and the savings numbers might not be directly used to extrapolate the annual energy savings. 2) Due to the needs for separate control and metering of the small-scale demonstrator within a large building, the HVAC system, hence the corresponding savings, did not represent a typical energy code-compliant design. 3) The light level in the control case was regulated at a particular setpoint, which was lower than then the full-on light level in the base case, and the savings resulted from tuning down the light level to the setpoint was not attributable to the contribution of the developed technology. The testbed at the Lawrence Berkeley National Laboratory (Berkeley, CA) specifically focused on glare control integration, and has demonstrated the feasibility and capability of the glare detection and prevention technique. While the short one-month test in this testbed provided a functional indication of the developed technology, and it would require at least a full solstice-to-solstice cycle to ruinously quan

  9. Perception of comfort in relation to weather and indoor adaptive opportunities

    SciTech Connect (OSTI)

    Nicol, J.F.; Kessler, M.R.B. [Oxford Brookes Univ. (United Kingdom). School of Architecture

    1998-10-01

    This paper compares conditions on three floors of a building that use different environmental control strategies. The first floor uses night ventilation and thermal mass to keep the interior cool, the third floor was fitted with mechanical cooling units, and the second floor consists of standard cellular offices with 50% glazing. This paper discusses the results of staff satisfaction surveys conducted in three consecutive months, August, September, and October 1995, among the occupants of the three floors of the building. The results show a clear change in the perception of comfort and adaptive opportunities on each floor as the weather cools down from an exceptionally hot summer. Lessons are drawn for the design of passively cooled buildings and for future research in this important area.

  10. Impact of Ducting on Heat Pump Water Heater Space Conditioning Energy Use and Comfort

    SciTech Connect (OSTI)

    Widder, Sarah H.; Petersen, Joseph M.; Parker, Graham B.; Baechler, Michael C.

    2014-07-21

    Increasing penetration of heat pump water heaters (HPWHs) in the residential sector will offer an important opportunity for energy savings, with a theoretical energy savings of up to 63% per water heater and up to 11% of residential energy use (EIA 2009). However, significant barriers must be overcome before this technology will reach widespread adoption in the Pacific Northwest region and nationwide. One significant barrier noted by the Northwest Energy Efficiency Alliance (NEEA) is the possible interaction with the homes’ space conditioning system for units installed in conditioned spaces. Such complex interactions may decrease the magnitude of whole-house savings available from HPWH installed in the conditioned space in cold climates and could lead to comfort concerns (Larson et al. 2011; Kresta 2012). Modeling studies indicate that the installation location of HPWHs can significantly impact their performance and the resultant whole-house energy savings (Larson et al. 2012; Maguire et al. 2013). However, field data are not currently available to validate these results. This field evaluation of two GE GeoSpring HPWHs in the PNNL Lab Homes is designed to measure the performance and impact on the Lab Home HVAC system of a GE GeoSpring HPWH configured with exhaust ducting compared to an unducted GeoSpring HPWH during heating and cooling season periods; and measure the performance and impact on the Lab Home HVAC system of the GeoSpring HPWH with both supply and exhaust air ducting as compared to an unducted GeoSpring HPWH during heating and cooling season periods. Important metrics evaluated in these experiments include water heater energy use, HVAC energy use, whole house energy use, interior temperatures (as a proxy for thermal comfort), and cost impacts. This technical report presents results from the PNNL Lab Homes experiment.

  11. Title: Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Developed by Dr. HoSung Lee on 10/18/2014

    E-Print Network [OSTI]

    Lee, Ho Sung

    1 Title: Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Developed by Dr. HoSung Lee on 10/18/2014 Car seat comfort is becoming more and more a competitive issue, moving optional to standard vehicle equipment. From early 1960s, it was shown that aerated car seats improved

  12. Comfort and human factors in office and residential settings. (Latest citations from the NTIS data base). Published Search

    SciTech Connect (OSTI)

    Not Available

    1992-04-01

    The bibliography contains citations concerning human factors engineering, anthropometry, and ergonomics as they relate to human comfort in the office and home. Human requirements, including ventilation, temperature control, and lighting, are considered. Research regarding environmental architecture, and engineering, safety, and convenience aspects are discussed. (Contains a minimum of 142 citations and includes a subject term index and title list.)

  13. From comfort to kilowatts: An integrated assessment of electricity conservation in Thailand's commercial sector

    SciTech Connect (OSTI)

    Busch, J.F. Jr.

    1990-08-01

    Thailand serves as a case study of the potential to conserve electricity in the fast-growing commercial sectors of the tropical developing world. We performed a field study of over 1100 Thai office workers in which a questionnaire survey and simultaneous physical measurements were taken. Both air-conditioned and non-air-conditioned buildings were included. We analyzed Thai subjective responses on the ASHRAE, McIntyre and other rating scales, relating them to Effective Temperature, demographics, and to rational indices of warmth such as PMV and TSENS. These results suggest that without sacrificing comfort, significant energy conservation opportunities exist through the relaxation of upper space temperature limits. To investigate the potential for conserving energy in a cost-effective manner, we performed a series of parametric simulations using the DOE-2.1D computer program on three commercial building prototypes based on actual buildings in Bangkok; an office, a hotel, and a shopping center. We investigated a wide range of energy conservation measures appropriate for each building type, from architectural measures to HVAC equipment and control solutions. The best measures applied in combination into high efficiency cases can generate energy savings in excess of 50%. Economic analyses performed for the high efficiency cases, resulted in costs of conserved energy of less than and internal rates of return in excess of 40%. Thermal cool storage, cogeneration, and gas cooling technology showed promise as cost-effective electric load management strategies.

  14. Progress on Enabling an Interactive Conversation Between Commercial Building Occupants and Their Building To Improve Comfort and Energy Efficiency: Preprint

    SciTech Connect (OSTI)

    Schott, M.; Scheib, J.; Long, N.; Fleming, K.; Benne, K.; Brackney, L.

    2012-06-01

    Many studies have reported energy savings after installing a dashboard, but dashboards provide neither individual feedback to the occupant nor the ability to report individual comfort. The Building Agent (BA) provides an interface to engage the occupant in a conversation with the building control system and the building engineer. Preliminary outcomes of the BA-enabled feedback loop are presented, and the effectiveness of the three display modes will be compared to other dashboard studies to baseline energy savings in future research.

  15. Validation of Simulated Thermal Comfort using a Calibrated Building Energy Simulation (BES) model in the context of Building Performance Evaluation & Optimisation 

    E-Print Network [OSTI]

    Coakley, D.; Corry, E. J.; Keane, M. M.

    2013-01-01

    as assessing various performance optimisation measures during the operational stage. Common metrics used to indicate Building Energy Performance include Energy cost, Carbon Dioxide emissions and Indoor Thermal Comfort (Predicted Mean Vote - PMV / Predicted...

  16. Vibro-acoustical comfort in cars at idle : human perception of simulated sounds and vibrations from three and four cylinder diesel engines

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    three and four cylinder diesel engines Etienne Parizet, Maël Amari Laboratoire Vibrations Acoustique This paper deals with comfort in diesel cars running at idle. A bench was used to reproduce the vertical

  17. Formosa Plastics Corporation | 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 Jump to:ofEnia SpAFlex Fuels EnergyTool (Redirected fromPlastics

  18. PowerPoint Presentation

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

    for medical point of care diagnostics and drug delivery Ronen Polsky Department of Biosensors and Nanomaterials February 25, 2015 Sandia MedTech Showcase Sandia National...

  19. PowerPoint Presentation

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

    System (RapiDx) * Portable microfluidic in vitro diagnostic instrument for cancer and infectious disease biomarkers in human biological samples * Point-of-Care...

  20. PowerPoint Presentation

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

    optic links will replace many hardwire connections - Remotely programmable set-points and monitoring for each klystron cart - Klystron collector over-temperature protection will...

  1. Web points of interest

    E-Print Network [OSTI]

    Web points of interest ... JUGGLING CLUB; The Lafayette Citizens Band Home Page; Harold Boas' incredible list of math and life resources on the WEB.

  2. Hoddle & Van Driesche: Bemisia control with Encarsia formosa 1 EVALUATION OF ENCARSIA FORMOSA (HYMENOPTERA

    E-Print Network [OSTI]

    Hoddle, Mark S.

    Gahan por planta no pudieron controlar una baja densidad poblacional (inicia- lente, 0.51 ninfas y pupas

  3. ARM - Point Reyes News

    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 Comments?govInstrumentsnoaacrnBarrow, Alaska OutreachCalendar NSAProductsMergedProductsVaisala CL51CaliforniaPoint

  4. Developing Scales to Evaluate Staff Perception of the Effects of the Physical Environment on Patient Comfort, Patient Safety, Patient Privacy, Family Integration With Patient Care, and Staff Working Conditions in Adult Intensive Care Units: A Pilot Study

    E-Print Network [OSTI]

    Rashid, Mahbub

    2007-07-01

    Studies suggest that the physical environment can be important for patient comfort, patient safety, patient privacy, family integration with patient care, and staff working condition in adult intensive care units (ICUs). In the absence of any...

  5. Moving air for comfort

    E-Print Network [OSTI]

    Arens, Edward; Turner, Stephen; Zhang, Hui; Paliaga, Gwelen

    2009-01-01

    Brager, L. Zagreus. 2007, “Air movement preferences observed709-731. 9. Toftum, J. 2004. “Air movement – good or bad? ”Indoor Air 14, pp 40-45. 10. Gong, N. , K. Tham, A. Melikov,

  6. Personalized building comfort control

    E-Print Network [OSTI]

    Feldmeier, Mark Christopher, 1974-

    2009-01-01

    Creating an appropriate indoor climate is essential to worker productivity and personal happiness. It is also an area of large expenditure for building owners. And, with rising fuel costs, finding ways of reducing energy ...

  7. Performance Tested Comfort Systems

    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| DepartmentPeer ReviewRadiationAward at

  8. Florida Nuclear Profile - Turkey Point

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

    Turkey Point" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

  9. A numerical approach to evaluating what percentage of a living space is well-ventilated, for the assessment of thermal comfort

    E-Print Network [OSTI]

    Bastide, Alain; Garde, François; Boyer, Harry

    2012-01-01

    A bioclimatic approach to designing comfortable buildings in hot and humid tropical regions requires, firstly, some preliminary, important work on the building envelope to limit the energy contributions, and secondly, an airflow optimization of the building. For the first step, tools such as nodal or zonal models have been largely implemented. For the second step, the assessment of air velocities, in three dimensions and in a large space, can only be performed through the use of detailed models such as with CFD. This paper deals with the improvement of thermal comfort by ventilating around the occupants. For this purpose, the average velocity coefficient definition is modified to be adapted to CFD and the areas involving movement or the living spaces. We propose a new approach based on the derivation of a new quantity: the well-ventilated percentage of a living space. The well-ventilated percentage of a space allows a time analysis of the aeraulic behaviour of the building in its environment. These percentage...

  10. A numerical approach to evaluating what percentage of a living space is well-ventilated, for the assessment of thermal comfort

    E-Print Network [OSTI]

    Alain Bastide; Alfred Jean Philippe Lauret; François Garde; Harry Boyer

    2012-12-18

    A bioclimatic approach to designing comfortable buildings in hot and humid tropical regions requires, firstly, some preliminary, important work on the building envelope to limit the energy contributions, and secondly, an airflow optimization of the building. For the first step, tools such as nodal or zonal models have been largely implemented. For the second step, the assessment of air velocities, in three dimensions and in a large space, can only be performed through the use of detailed models such as with CFD. This paper deals with the improvement of thermal comfort by ventilating around the occupants. For this purpose, the average velocity coefficient definition is modified to be adapted to CFD and the areas involving movement or the living spaces. We propose a new approach based on the derivation of a new quantity: the well-ventilated percentage of a living space. The well-ventilated percentage of a space allows a time analysis of the aeraulic behaviour of the building in its environment. These percentages can be over a period such as one day, a season or a year. These kinds of results are helpful for an architect to configure the rooms of a house according to their uses, the environment, the architectural choices and the constraints related to the design of bioclimatic buildings.

  11. Points

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

    (Fluidic Energy, Inc.) 5,133,150 Tempe, AZ Energy Storage A new class of metal-air batteries using ionic liquids, with many times the energy density of today's lithium-ion...

  12. Take Home Points Horticultural Prospective

    E-Print Network [OSTI]

    Ma, Lena

    HLB Take Home Points Horticultural Prospective Stephen H. Futch Extension Agent, Multi County Co plants, ACP adults preferentially light on infected within first 48 hour but on uninfected after 7 days

  13. Join Point Encapsulation David Larochelle

    E-Print Network [OSTI]

    Huang, Wei

    , behavior observation and modification are possible. We believe that it is undesirable to make all join points nec- essarily subject to behavioral observation and modification by aspects. To do so

  14. Formosa Sumco Technology Corporation FST | 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 Jump to:ofEnia SpAFlex Fuels EnergyTool (Redirected

  15. Microsoft PowerPoint - Window_Attachments-Webinar-Oct_28_2015...

    Energy Savers [EERE]

    comfort - reduced noise 1 Culp et al, 2013 24 Demonstration Case Studies 2012-13 Philadelphia multifamily field study (NAHB Research Center, QUANTAPANEL, Larson Manufacturing) 1...

  16. The Ritz Carlton San Francisco has become the first hotel in the world to install the PureComfort 240M a combined cooling, heating, power system developed by UTC

    E-Print Network [OSTI]

    Pennycook, Steve

    Comfort 240M ­ a combined cooling, heating, power system developed by UTC Power in partnership with the DE, heating, and cooling demands of large hotels are high year-round. The benefits of integrated energy system Program. It is anticipated that the IES will provide 240 kW of electricity and 120 tons of cooling

  17. $500,000 annually for heating and cooling prior to the installation of the PureComfortTM cooling, heating, and power system. Electrical power and space conditioning are now

    E-Print Network [OSTI]

    Pennycook, Steve

    -fired boilers and a steam heating system, and supplements the remaining campus heating and cooling system$500,000 annually for heating and cooling prior to the installation of the PureComfortTM cooling, heating, and power system. Electrical power and space conditioning are now provided more efficiently

  18. Femtosecond photoelectron point projection microscope

    SciTech Connect (OSTI)

    Quinonez, Erik; Handali, Jonathan; Barwick, Brett

    2013-10-15

    By utilizing a nanometer ultrafast electron source in a point projection microscope we demonstrate that images of nanoparticles with spatial resolutions of the order of 100 nanometers can be obtained. The duration of the emission process of the photoemitted electrons used to make images is shown to be of the order of 100 fs using an autocorrelation technique. The compact geometry of this photoelectron point projection microscope does not preclude its use as a simple ultrafast electron microscope, and we use simple analytic models to estimate temporal resolutions that can be expected when using it as a pump-probe ultrafast electron microscope. These models show a significant increase in temporal resolution when comparing to ultrafast electron microscopes based on conventional designs. We also model the microscopes spectroscopic abilities to capture ultrafast phenomena such as the photon induced near field effect.

  19. Starting Points | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    (M&O) Contract Competition Starting Points Starting Points Kansas City Plant Related Web Pages Summary Kansas City Plant Home Page Kansas City Plant Contracts DOE Directives...

  20. Breaking Points in Quartic Maps

    E-Print Network [OSTI]

    M. Romera; G. Pastor; M. -F. Danca; A. Martin; A. B. Orue; F. Montoya

    2014-12-18

    Dynamical systems, whether continuous or discrete, are used by physicists in order to study non-linear phenomena. In the case of discrete dynamical systems, one of the most used is the quadratic map depending on a parameter. However, some phenomena can depend alternatively of two values of the same parameter. We use the quadratic map $x_{n+1} =1-ax_{n}^{2} $ when the parameter alternates between two values during the iteration process. In this case, the orbit of the alternate system is the sum of the orbits of two quartic maps. The bifurcation diagrams of these maps present breaking points where abruptly change their evolution.

  1. Capital Point | 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 JEnvironmentalBowerbank,Cammack Village, Arkansas: EnergyCounty,NewHatteras ElecPoint Jump to:

  2. Points of Contact - Hanford Site

    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 NewsInformationJesseworkSURVEYI/OPerformancePi Day Pi Day Pi DayPlasmaandAbout UsPoints of

  3. Building America Case Study: Overcoming Comfort Issues Due to Reduced Flow Room Air Mixing (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

    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 Fuels ResearchofDerivativeCold ClimateInsulatedOvercoming Comfort Issues

  4. Field Study of Performance, Comfort, and Sizing of Two Variable-Speed Heat Pumps Installed in a Single 2-Story Residence

    SciTech Connect (OSTI)

    Munk, Jeffrey D [ORNL; Odukomaiya, Adewale O [ORNL; Gehl, Anthony C [ORNL; Jackson, Roderick K [ORNL

    2014-01-01

    With the recent advancements in the application of variable-speed (VS) compressors to residential HVAC systems, opportunities are now available to size heat pumps (HPs) to more effectively meet heating and cooling loads in many of the climate zones in the US with limited use of inefficient resistance heat. This is in contrast to sizing guidance for traditional single-speed HPs that limits the ability to oversize with regard to cooling loads, because of risks of poor dehumidification during the cooling season and increased cycling losses. VS-drive HPs can often run at 30-40% of their rated cooling capacity to reduce cycling losses, and can adjust fan speed to provide better indoor humidity control. Detailed air-side performance data was collected on two VS-drive heat pumps installed in a single unoccupied research house in Knoxville, TN, a mixed-humid climate. One system provided space conditioning for the upstairs, while the other unit provided space conditioning for the downstairs. Occupancy was simulated by operating the lights, shower, appliances, other plug loads, etc. to simulate the sensible and latent loads imposed on the building space by internal electric loads and human occupants according to the Building America Research Benchmark (2008). The seasonal efficiency and energy use of the units are calculated. Annual energy use is compared to that of the single speed minimum efficiency HPs tested in the same house previously. Sizing of the units relative to the measured building load and manual J design load calculations is examined. The impact of the unit sizing with regards to indoor comfort is also evaluated.

  5. Dithering Strategies and Point-Source Photometry

    E-Print Network [OSTI]

    Samsing, Johan

    2011-01-01

    Strategies and Point-Source Photometry Johan Samsing DARK-The accuracy in the photometry of a point source depends onobjects in a single source photometry (Lauer 1999a) and the

  6. VOLUMETRIC SNAPPING: WATERTIGHT TRIANGULATION OF POINT CLOUDS

    E-Print Network [OSTI]

    Floater, Michael S.

    VOLUMETRIC SNAPPING: WATERTIGHT TRIANGULATION OF POINT CLOUDS Tim Volodine KULeuven, Department: meshing, surface reconstruction, volumetric grid, contouring, point clouds. Abstract: We propose, a volumetric method that does not rely on a signed distance function was proposed recently by Hornung

  7. Other Purdue Web points of Interest

    E-Print Network [OSTI]

    Other Purdue Web points of interest. Purdue University Home Page --- Schedule of Classes · Graduate School · Agronomy · Computer Science --- CS & E ...

  8. CenterPoint Energy New Homes Program

    Broader source: Energy.gov [DOE]

    Note: This program is only available to electric Customers in CenterPoint Energy's service territory (greater Houston area, Texas).

  9. comfort | OpenEI Community

    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-EnhancingEtGeorgia:Illinois:WizardYatescloud Home Dc's picture Submitted by

  10. Earth Comfort | 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:Earlsboro, Oklahoma:

  11. Affordable Comfort | 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 IncIowaWisconsin: Energy Resources JumpAdelan1986) |

  12. Critical point analysis of phase envelope diagram

    SciTech Connect (OSTI)

    Soetikno, Darmadi; Siagian, Ucok W. R.; Kusdiantara, Rudy Puspita, Dila Sidarto, Kuntjoro A. Soewono, Edy; Gunawan, Agus Y.

    2014-03-24

    Phase diagram or phase envelope is a relation between temperature and pressure that shows the condition of equilibria between the different phases of chemical compounds, mixture of compounds, and solutions. Phase diagram is an important issue in chemical thermodynamics and hydrocarbon reservoir. It is very useful for process simulation, hydrocarbon reactor design, and petroleum engineering studies. It is constructed from the bubble line, dew line, and critical point. Bubble line and dew line are composed of bubble points and dew points, respectively. Bubble point is the first point at which the gas is formed when a liquid is heated. Meanwhile, dew point is the first point where the liquid is formed when the gas is cooled. Critical point is the point where all of the properties of gases and liquids are equal, such as temperature, pressure, amount of substance, and others. Critical point is very useful in fuel processing and dissolution of certain chemicals. Here in this paper, we will show the critical point analytically. Then, it will be compared with numerical calculations of Peng-Robinson equation by using Newton-Raphson method. As case studies, several hydrocarbon mixtures are simulated using by Matlab.

  13. PURE STRATEGY NASH EQUILIBRIUM POINTS AND THE LEFSCHETZ FIXED POINT THEOREM

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    PURE STRATEGY NASH EQUILIBRIUM POINTS AND THE LEFSCHETZ FIXED POINT THEOREM by Leigh Tesfatsion of Minnesota Minneapolis, Minnesota 55455 #12;ABSTRAcr A pure strategy Nash equilibrium point existence theorem cases of the existence theorem are also discussed. #12;PURE STRATEGY NASH EQUILIBRIUM POINTS

  14. Building Green in Greensburg: Prairie Pointe Townhomes

    Office of Energy Efficiency and Renewable Energy (EERE)

    This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Prairie Pointe Townhomes in Greensburg, Kansas.

  15. VPP Points of Contact web version 07092015

    Office of Environmental Management (EM)

    Updated 792015 VPP POINTS OF CONTACT Organization DOE POC Contractor DOE Federal POC Advanced Technologies and Laboratories International, Inc. (ATL)222-S Laboratory Analytical...

  16. SIMPLE EXPLICIT FORMULA FOR COUNTING LATTICE POINTS ...

    E-Print Network [OSTI]

    2007-02-14

    by a simple formula involving the evaluation of ? zx over the integral points of those ... different) formula from a decomposition of the generating function into.

  17. HOLOMORPHIC ONE FORMS, INTEGRAL AND RATIONAL POINTS ...

    E-Print Network [OSTI]

    2014-09-23

    Abstract The first goal of this paper is to study the question of finiteness of integral points on a cofinite non-compact complex two dimensional ball quotient ...

  18. Wisconsin Nuclear Profile - Point Beach Nuclear Plant

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

    Point Beach Nuclear Plant" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration...

  19. New York Nuclear Profile - Indian Point

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

    Indian Point" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

  20. Wolf Point Substation, Roosevelt County, Montana

    SciTech Connect (OSTI)

    Not Available

    1991-05-01

    The Western Area Power Administration (Western), an agency of the United States Department of Energy, is proposing to construct the 115-kV Wolf Point Substation near Wolf Point in Roosevelt County, Montana (Figure 1). As part of the construction project, Western's existing Wolf Point Substation would be taken out of service. The existing 115-kV Wolf Point Substation is located approximately 3 miles west of Wolf Point, Montana (Figure 2). The substation was constructed in 1949. The existing Wolf Point Substation serves as a Switching Station'' for the 115-kV transmission in the region. The need for substation improvements is based on operational and reliability issues. For this environmental assessment (EA), the environmental review of the proposed project took into account the removal of the old Wolf Point Substation, rerouting of the five Western lines and four lines from the Cooperatives and Montana-Dakota Utilities Company, and the new road into the proposed substation. Reference to the new proposed Wolf Point Substation in the EA includes these facilities as well as the old substation site. The environmental review looked at the impacts to all resource areas in the Wolf Point area. 7 refs., 6 figs.

  1. On Robust Regression in Photogrammetric Point Clouds

    E-Print Network [OSTI]

    Schindler, Konrad

    On Robust Regression in Photogrammetric Point Clouds Konrad Schindler and Horst Bischof Institute,bischof}@icg.tu-graz.ac.at Abstract. Many applications in computer vision require robust linear regression on photogrammetrically for robust regression are based on distance measures from the regression surface to the points

  2. Traveling water waves with point vortices

    E-Print Network [OSTI]

    Kristoffer Varholm

    2015-03-20

    We construct small-amplitude solitary traveling gravity-capillary water waves with a finite number of point vortices along a vertical line, on finite depth. This is done using a local bifurcation argument. The properties of the resulting waves are also examined: We find that they depend significantly on the position of the point vortices in the water column.

  3. Three-point spherical mirror mount

    DOE Patents [OSTI]

    Cutburth, R.W.

    1984-01-23

    A three-point spherical mirror mount for use with lasers is disclosed. The improved mirror mount is adapted to provide a pivot ring having an outer surface with at least three spaced apart mating points to engage an inner spherical surface of a support housing.

  4. Interaction between Injection Points during Hydraulic Fracturing

    E-Print Network [OSTI]

    Hals, Kjetil M D

    2012-01-01

    We present a model of the hydraulic fracturing of heterogeneous poroelastic media. The formalism is an effective continuum model that captures the coupled dynamics of the fluid pressure and the fractured rock matrix and models both the tensile and shear failure of the rock. As an application of the formalism, we study the geomechanical stress interaction between two injection points during hydraulic fracturing (hydrofracking) and how this interaction influences the fracturing process. For injection points that are separated by less than a critical correlation length, we find that the fracturing process around each point is strongly correlated with the position of the neighboring point. The magnitude of the correlation length depends on the degree of heterogeneity of the rock and is on the order of 30-45 m for rocks with low permeabilities. In the strongly correlated regime, we predict a novel effective fracture-force that attracts the fractures toward the neighboring injection point.

  5. POLYNOMIAL PARTITIONING ON VARIETIES AND POINT ...

    E-Print Network [OSTI]

    2014-06-09

    Jun 9, 2014 ... breakthrough in a long-standing problem of Erd?os on the number of distinct dis- tances between a n points in the plane, by nearly proving the ...

  6. CenterPoint Energy Sustainable Schools Program

    Broader source: Energy.gov [DOE]

    The Sustainable Schools Program focuses on energy savings through behavioral and operational improvements, and may be used along with CenterPoint Energy’s SCORES and Load Management programs. It...

  7. Critical-Point Structure in Finite Nuclei

    E-Print Network [OSTI]

    A. Leviatan

    2006-12-04

    Properties of quantum shape-phase transitions in finite nuclei are considered in the framework of the interacting boson model. Special emphasis is paid to the dynamics at the critical-point of a general first-order phase transition.

  8. CenterPoint Energy's Energy Wise Program

    Broader source: Energy.gov [DOE]

    CenterPoint Energy's Energy Wise program provides take-home kits containing efficiency devices with classroom and in-home education techniques with the aim to inspire families to adopt new resource...

  9. THE FERNALD DOSIMETRY RECONSTRUCTION Task 1: Identification of Release Points

    E-Print Network [OSTI]

    fires, spills, and UF6 leaks and releases. The Stack Release Points and Other Release Points are located

  10. Hot Springs Point Geothermal Project | Open Energy Information

    Open Energy Info (EERE)

    Point Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Hot Springs Point Geothermal Project Project Location Information...

  11. Superconductivity, superfluidity and zero-point oscillations

    E-Print Network [OSTI]

    B. V. Vasiliev

    2013-06-29

    Currently it is thought that in order to explain the phenomenon of superconductivity is necessary to understand the mechanism of formation of electron pairs. However, the paired electrons cannot form a superconducting condensate. They perform disorderly zero-point oscillations and there are no attractive forces in their ensemble. To create a unified ensemble of particles, the pairs must order their zero-point fluctuations so that an attraction between the particles appears. For this reason, the ordering of zero-point oscillations in the electron gas is the cause of superconductivity and the parameters characterizing this order determine the properties of superconductors. The model of condensation of zero-point oscillations creates the possibility to obtain estimates for the critical parameters of elementary superconductors, which are also in the satisfactory agreement with measured data. On the another hand, the phenomenon of superfluidity in He-4 and He-3 can be similarly explained due to the ordering of zero-point fluctuations. Thus it is established that the both related phenomena are based on the same physical mechanism.

  12. Relative localization of point particle interactions

    E-Print Network [OSTI]

    José Ricardo Oliveira

    2011-10-25

    We review the main concepts of the recently introduced principle of relative locality and investigate some aspects of classical interactions between point particles from this new perspective. We start with a physical motivation and basic mathematical description of relative locality and review the treatment of a system of classical point particles in this framework. We then examine one of the unsolved problems of this picture, the apparent ambiguities in the definition of momentum constraints caused by a non-commutative and/or non-associative momentum addition rule. The gamma ray burst experiment is used as an illustration. Finally, we use the formalism of relative locality to reinterpret the well-known multiple point particle system coupled to 2+1 Einstein gravity, analyzing the geometry of its phase space and once again referring to the gamma ray burst problem as an example.

  13. Phase-shifting point diffraction interferometer

    DOE Patents [OSTI]

    Medecki, H.

    1998-11-10

    Disclosed is a point diffraction interferometer for evaluating the quality of a test optic. In operation, the point diffraction interferometer includes a source of radiation, the test optic, a beam divider, a reference wave pinhole located at an image plane downstream from the test optic, and a detector for detecting an interference pattern produced between a reference wave emitted by the pinhole and a test wave emitted from the test optic. The beam divider produces separate reference and test beams which focus at different laterally separated positions on the image plane. The reference wave pinhole is placed at a region of high intensity (e.g., the focal point) for the reference beam. This allows reference wave to be produced at a relatively high intensity. Also, the beam divider may include elements for phase shifting one or both of the reference and test beams. 8 figs.

  14. Phase-shifting point diffraction interferometer

    DOE Patents [OSTI]

    Medecki, Hector (Berkeley, CA)

    1998-01-01

    Disclosed is a point diffraction interferometer for evaluating the quality of a test optic. In operation, the point diffraction interferometer includes a source of radiation, the test optic, a beam divider, a reference wave pinhole located at an image plane downstream from the test optic, and a detector for detecting an interference pattern produced between a reference wave emitted by the pinhole and a test wave emitted from the test optic. The beam divider produces separate reference and test beams which focus at different laterally separated positions on the image plane. The reference wave pinhole is placed at a region of high intensity (e.g., the focal point) for the reference beam. This allows reference wave to be produced at a relatively high intensity. Also, the beam divider may include elements for phase shifting one or both of the reference and test beams.

  15. Multiple Critical Points in Effective Quark Models

    E-Print Network [OSTI]

    Ferroni, Lorenzo; Pinto, Marcus B

    2010-01-01

    We consider the two flavor version of the Linear Sigma Model as well as of the Nambu Jona-Lasinio model, at finite temperature and quark chemical potential, beyond the Mean Field Approximation. Using parameter values for the pion and quark current masses which weakly break chiral symmetry we show that both models can present more than one critical end point. In particular, we explicitly show that the appearance of a new critical point associated with a first order line at high temperature and low densities could help to conciliate some lattice results with model predictions. Using different techniques, we perform an extensive thermodynamical analysis to understand the physical nature of the different critical points. For both models, our results suggest that the new first order line which starts at vanishing chemical potential has a more chiral character than the usual line which displays a character more reminiscent of a liquid-gas phase transition.

  16. The ROSAT HRI Point Spread Function

    E-Print Network [OSTI]

    Peter Predehl; Almudena Prieto

    2001-09-28

    A sample of the brightest point-like sources observed with the ROSAT-HRI were analysed to asses on the intrinsic shape of the ROSAT-HRI Point Spread Function (PSF). Almost all of the HRI observations collected during the ROSAT lifetime are found to be artificially broadened by factors up two ~2 due to residual errors in the ROSAT aspect solution. After correction by departing pointing positions, the width of the core of the PSF is found to be less than 5 arcsec (half energy width, HEW). On the basis of these results, an improved analytical representation of the ROSAT-HRI PSF is provided. However, for most of the new observations the source countrate is too weak to allow reliable recovering pf the ROSAT-HRI resolution. Therefore, a series of examples (data, correction, and theoretical PSF) are given in order to help the ROSAT user in determining whether "his/her source" is extended or not.

  17. Nanotexturing of surfaces to reduce melting point.

    SciTech Connect (OSTI)

    Garcia, Ernest J.; Zubia, David; Mireles, Jose; Marquez, Noel; Quinones, Stella

    2011-11-01

    This investigation examined the use of nano-patterned structures on Silicon-on-Insulator (SOI) material to reduce the bulk material melting point (1414 C). It has been found that sharp-tipped and other similar structures have a propensity to move to the lower energy states of spherical structures and as a result exhibit lower melting points than the bulk material. Such a reduction of the melting point would offer a number of interesting opportunities for bonding in microsystems packaging applications. Nano patterning process capabilities were developed to create the required structures for the investigation. One of the technical challenges of the project was understanding and creating the specialized conditions required to observe the melting and reshaping phenomena. Through systematic experimentation and review of the literature these conditions were determined and used to conduct phase change experiments. Melting temperatures as low as 1030 C were observed.

  18. Symmetry and Dirac points in graphene spectrum

    E-Print Network [OSTI]

    Gregory Berkolaiko; Andrew Comech

    2015-04-23

    Existence and stability of Dirac points in the dispersion relation of operators periodic with respect to the hexagonal lattice is investigated for different sets of additional symmetries. The following symmetries are considered: rotation by $2\\pi/3$ and inversion, rotation by $2\\pi/3$ and horizontal reflection, inversion or reflection with weakly broken rotation symmetry, and the case where no Dirac points arise: rotation by $2\\pi/3$ and vertical reflection. All proofs are based on symmetry considerations and are elementary in nature. In particular, existence of degeneracies in the spectrum is proved by a transplantation argument (which is deduced from the (co)representation of the relevant symmetry group). The conical shape of the dispersion relation is obtained from its invariance under rotation by $2\\pi/3$. Persistence of conical points when the rotation symmetry is weakly broken is proved using a geometric phase in one case and parity of the eigenfunctions in the other.

  19. Non-lead hollow point bullet

    DOE Patents [OSTI]

    Vaughn, Norman L. (Knoxville, TN); Lowden, Richard A. (Clinton, TN)

    2003-04-15

    The non-lead hollow point bullet of the instant invention comprises a mixed construction slug further comprising, a monolithic metal insert having a tapered (preferred conical) hollow point tip and a tapered (preferred conical) tail protrusion, and an unsintered powdered metal composite core in tandem alignment with the insert. The core has a hollow tapered (preferred conical) cavity tip portion coupled with the tapered (preferred conical) tail protrusion on the insert. An open tip jacket envelops at least a portion of the insert and the core. The jacket is swaged at the open tip.

  20. Sequential conditions for fixed and periodic points 

    E-Print Network [OSTI]

    Peters, Burnis Charles

    1970-01-01

    ) (Member) ~A (Month) 1970 (Year) ~04SQQ ABSTRACT Sec, uential Conditions fo. Fixed and Periodic Points (August 1970) Burnis C. Peter, Jr. , B. A. , Texas ASM University; M. S. , Texas A&M University Directed by: Jack Bryant and L. F. Guseman, Jr.... Let (X, d) be a metric space and f a selfmap of X. It is shown that a number of known theorems on the existence of fixed and periodic points are related through simple properties of the n sequence (f ) of iterates . ACMOVI. EDGEMENTS I wish...

  1. QCD Critical Point: The Race is On

    E-Print Network [OSTI]

    Gavai, Rajiv V

    2014-01-01

    A critical point in the phase diagram of Quantum Chromodynamics (QCD), if established either theoretically or experimentally, would be as profound a discovery as the good-old gas-liquid critical point. Unlike the latter, however, first-principles based approaches are being employed to locate it theoretically. Due to the short lived nature of the concerned phases, novel experimental techniques are needed to search for it. The Relativistic Heavy Ion Collider (RHIC) in USA has an experimental program to do so. This short review is an attempt to provide a glimpse of the race between the theorists and the experimentalists as well as that of the synergy between them.

  2. Points of Pride | The Ames Laboratory

    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 NewsInformationJesseworkSURVEYI/OPerformancePi Day Pi Day Pi DayPlasmaandAbout UsPointsPoints

  3. EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS

    E-Print Network [OSTI]

    Fried, Michael

    EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS ROBERT M. GURALNICK, THOMAS J. TUCKER proved by Davenport and Lewis [DL], Mac- Cluer [Mac], Williams [Wi], Cohen [Co], and Fried [Fr, Fr3, FGS was partially supported by NSF grant DMS-0140578. 1 #12;2 ROBERT M. GURALNICK, THOMAS J. TUCKER, AND MICHAEL E

  4. EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS

    E-Print Network [OSTI]

    Zieve, Michael E.

    EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS ROBERT M. GURALNICK, THOMAS J. TUCKER cases and weaker versions were previously proved by Davenport and Lewis [DL], Mac- Cluer [Mac], Williams was partially supported by NSF grant DMS-0140578. 1 #12;2 ROBERT M. GURALNICK, THOMAS J. TUCKER, AND MICHAEL E

  5. Killam Library Service Point August 20, 2013

    E-Print Network [OSTI]

    Lotze, Heike K.

    , the Library will make special provisions insofar as feasible to permit the patrons to examine sources impression of the Library. Individual assistance to patrons who come to the Library is the primary5 Killam Library Service Point Policy 2013-02-18 August 20, 2013 Head, Killam Memorial Library

  6. Discovering Point Sources in Unknown Environments

    E-Print Network [OSTI]

    Ferguson, Thomas S.

    - ted from the yet-to-be-located source. We will refer to the information from the range sensorDiscovering Point Sources in Unknown Environments Yanina Landa1 , Nicolay M. Tanushev2 , Richard of Texas at Austin, {nicktan,ytsai}@math.utexas.edu 3 Institute for Computational and Appplied Mathematics

  7. Form drag at Three Tree Point

    E-Print Network [OSTI]

    for this study Seattle Tacoma Edwards et al., 2004 Puget Sound, WA Point Three Tree Previous work McCabe et al 24 ­ drag due to tilt = residual drag total form drag #12;Cruise at TTP in Dec. 2009 Seattle Tacoma

  8. Multilinear generalized Radon transforms and point configurations

    E-Print Network [OSTI]

    Grafakos, Loukas; Iosevich, Alex; Palsson, Eyvindur

    2012-01-01

    We study multilinear generalized Radon transforms using a graph-theoretic paradigm that includes the widely studied linear case. These provide a general mechanism to study Falconer-type problems involving $(k+1)$-point configurations in geometric measure theory, with $k \\ge 2$, including the distribution of simplices, volumes and angles determined by the points of fractal subsets $E \\subset {\\Bbb R}^d$, $d \\ge 2$. If $T_k(E)$ denotes the set of noncongruent $(k+1)$-point configurations determined by $E$, we show that if the Hausdorff dimension of $E$ is greater than $d-\\frac{d-1}{2k}$, then the ${k+1 \\choose 2}$-dimensional Lebesgue measure of $T_k(E)$ is positive. This compliments previous work on the Falconer conjecture (\\cite{Erd05} and the references there), as well as work on finite point configurations \\cite{EHI11,GI10}. We also give applications to Erd\\"os-type problems in discrete geometry and a fractal regular value theorem, providing a multilinear framework for the results in \\cite{EIT11}.

  9. Multilinear generalized Radon transforms and point configurations

    E-Print Network [OSTI]

    Grafakos, Loukas

    Multilinear generalized Radon transforms and point configurations Loukas Grafakos, Allan Greenleaf, Alex Iosevich and Eyvindur Palsson Abstract. We study multilinear generalized Radon transforms using for the results in [7]. 1. Introduction Linear generalized Radon transforms are operators of the form (1.1) Rf

  10. Ground Vibration Measurements at LHC Point 4

    SciTech Connect (OSTI)

    Bertsche, Kirk; /SLAC; Gaddi, Andrea; /CERN

    2012-09-17

    Ground vibration was measured at Large Hadron Collider (LHC) Point 4 during the winter shutdown in February 2012. This report contains the results, including power and coherence spectra. We plan to collect and analyze vibration data from representative collider halls to inform specifications for future linear colliders, such as ILC and CLIC. We are especially interested in vibration correlations between final focus lens locations.

  11. Surveying points in the complex projective plane

    E-Print Network [OSTI]

    Lane Hughston; Simon Salamon

    2014-10-21

    We classify SIC-POVMs of rank one in CP^2, or equivalently sets of nine equally-spaced points in CP^2, without the assumption of group covariance. If two points are fixed, the remaining seven must lie on a pinched torus that a standard moment mapping projects to a circle in R^3. We use this approach to prove that any SIC set in CP^2 is isometric to a known solution, given by nine points lying in triples on the equators of the three 2-spheres each defined by the vanishing of one homogeneous coordinate. We set up a system of equations to describe hexagons in CP^2 with the property that any two vertices are related by a cross ratio (transition probability) of 1/4. We then symmetrize the equations, factor out by the known solutions, and compute a Groebner basis to show that no SIC sets remain. We do find new configurations of nine points in which 27 of the 36 pairs of vertices of the configuration are equally spaced.

  12. A Formula for Inserting Point Masses

    E-Print Network [OSTI]

    Manwah Lilian Wong

    2010-09-08

    Let mu be a probability measure on the unit circle and nu be the measure formed by adding a pure point to mu. We give a formula for the Verblunsky coefficients of the perturbed measure, based on a result of Simon.

  13. ON LYAPUNOV FAMILIES AROUND COLLINEAR LIBRATION POINTS

    SciTech Connect (OSTI)

    Hou, X. Y.; Liu, L. [Astronomy Department, Nanjing University, Nanjing 210093 (China)], E-mail: lliu@nju.edu.cn

    2009-06-15

    Evolution details of the planar and vertical Lyapunov families around the three collinear libration points in the restricted three-body problem were studied. Researches before were generally restricted to be within the colliding orbits with the primaries and for fixed mass parameters {mu}. In this paper, members after colliding orbits were computed. With increasing {mu}, how these families evolve was studied.

  14. Emergency Preparedness Plan Horn Point Laboratory

    E-Print Network [OSTI]

    Boynton, Walter R.

    Emergency Preparedness Plan Horn Point Laboratory March 2015 Introduction This plan summarizes the actions which will be taken in preparation for and in response to emergencies impacting the regular technology security and infrastructure, business functions, and academic and research continuity. Emergencies

  15. Language Production General Points about Speech Production

    E-Print Network [OSTI]

    Coulson, Seana

    Language Production #12;General Points about Speech Production 15 speech sounds per second => 2, shall I say `t' or `d'' (Levelt) Production side has gotten less attention in Psycholinguistics than the comprehension side. Evidence for speech production behaviour has until recently relied heavily on speech errors

  16. Point-to-Point Car Racing: an Initial Study of Evolution Versus Temporal Difference Learning

    E-Print Network [OSTI]

    Togelius, Julian

    Point-to-Point Car Racing: an Initial Study of Evolution Versus Temporal Difference Learning Simon, jtogel}@essex.ac.uk Abstract-- This paper considers variations on an extremely simple form of car racing-evaluation neural networks, and these were greatly superior to human drivers. Keywords: Car racing, reinforcement

  17. The Efficiency of Point-to-Point Financial Transmission Rights is Limited by the Network Topology

    E-Print Network [OSTI]

    Blumsack, Seth

    of the restructured electric power industry envisioned replacing the transmission business of a regulated utility of electric-sector restructuring would place transmission under a market regime similar to generationThe Efficiency of Point-to-Point Financial Transmission Rights is Limited by the Network Topology

  18. Integral points on hyperbolas: A special case

    E-Print Network [OSTI]

    Konstantine Zelator

    2009-07-21

    The subject matter of this work is integral points on conics described by the general equation, ax^2+bxy+cy^2+dx+ey+f=0 (1) where the six coefficients are integers satisfying the conditions, b^2-4ac=k^2, with a and c being nonzero and k a positive integer. It is well known the when b^2-4ac>0, equation (1) describes either a hyperbola on the plane or a pair of two straight lines(the degenerate case). The key integer is the number, I=k^2(d^2-4af)-(2ae-bd)^2. In Section 2, we show via a straightforward algebraic method that equation (1) can be put in the form, g(x,y)h(x,y)=I, where g(x,y) and h(x,y) are linear polynomials in x and y with integer coefficients. Thus, when I is not zero, equation (1) has only finitely many integer solutions (x,y). The process of finding these solutions is outlined in Section 3. In Section 4,we give a detailed numerical example. In Section 5, we offer some observations and remarks. In Section 6, we discuss the case b=d=e=0. In Section 7 we discuss the case a=1=k, and we show that when I=2^n, n>or=2, the above hyperbola has exactly 2(n-1) integral points, all explicitly given. In Section 10, we prove that these points are distinct. In Section 8 we discuss the case I=0, the hyperbola in (1) has either infinitely many integral points: or no integral points. Finally in Section 9, we discuss the special case d=e=f=0.

  19. Redeveloping or preserving public housing : the future of Columbia Point

    E-Print Network [OSTI]

    Lee, Sharon Hsueh-Jen

    1981-01-01

    Columbia Point, Boston's largest and most stigmatized public housing project, has been a focal point for public and private. investment strategies to create a new mixed-income residential community. Columbia Point provided ...

  20. From Point to Pixel: A Genealogy of Digital Aesthetics

    E-Print Network [OSTI]

    Hoy, Meredith Anne

    2010-01-01

    From Point to Pixel: A Genealogy of Digital Aesthetics byFrom Point to Pixel: A Genealogy of Digital Aesthetics byFrom Point to Pixel: A Genealogy of Digital Aesthetics, I

  1. Quasi-Symmetries of Determinantal Point Processes

    E-Print Network [OSTI]

    Alexander I. Bufetov

    2014-09-06

    The main result of this paper is that determinantal point processes on the real line corresponding to projection operators with integrable kernels are quasi-invariant, in the continuous case, under the group of diffeomorphisms with compact support (Theorem 1.5); in the discrete case, under the group of all finite permutations of the phase space (Theorem 1.7). The Radon-Nikodym derivative is computed explicitly and is given by a regularized multiplicative functional. Theorem 1.5 applies, in particular, to the sine-process and the Bessel point process; Theorem 1.7 to the discrete sine process and the Gamma kernel process. The paper answers a question of Grigori Olshanski.

  2. Big Rock Point severe accident management strategies

    SciTech Connect (OSTI)

    Brogan, B.A. [Consumers Power Co., Charlevoix, MI (United States); Gabor, J.R. [Dames and Moore, Westmont, IL (United States)

    1996-07-01

    December 1994, the Nuclear Energy Institute (NEI) issued guidance relative to the formal industry position on Severe Accident Management (SAM) approved by the NEI Strategic Issues Advisory Committee on November 4, 1994. This paper summarizes how Big Rock Point (BRP) has and continues to address SAM strategies. The historical accounting portion of this presentation includes a description of how the following projects identified and defined the current Big Rock Point SAM strategies: the 1981 Level 3 Probabilistic Risk Assessment performance; the development of the Plant Specific Technical Guidelines from which the symptom oriented Emergency Operating Procedures (EOPs) were developed; the Control Room Design Review; and, the recent completion of the Individual Plant Evaluation (IPE). In addition to the historical presentation deliberation, this paper the present activities that continue to stress SAM strategies.

  3. Remote temperature-set-point controller

    DOE Patents [OSTI]

    Burke, W.F.; Winiecki, A.L.

    1984-10-17

    An instrument is described for carrying out mechanical strain tests on metallic samples with the addition of means for varying the temperature with strain. The instrument includes opposing arms and associated equipment for holding a sample and varying the mechanical strain on the sample through a plurality of cycles of increasing and decreasing strain within predetermined limits, circuitry for producing an output signal representative of the strain during the tests, apparatus including a a set point and a coil about the sample for providing a controlled temperature in the sample, and circuitry interconnected between the strain output signal and set point for varying the temperature of the sample linearly with strain during the tests.

  4. Dynamic trapping near a quantum critical point

    E-Print Network [OSTI]

    Michael Kolodrubetz; Emanuel Katz; Anatoli Polkovnikov

    2015-03-02

    The study of dynamics in closed quantum systems has recently been revitalized by the emergence of experimental systems that are well-isolated from their environment. In this paper, we consider the closed-system dynamics of an archetypal model: spins near a second order quantum critical point, which are traditionally described by the Kibble-Zurek mechanism. Imbuing the driving field with Newtonian dynamics, we find that the full closed system exhibits a robust new phenomenon -- dynamic critical trapping -- in which the system is self-trapped near the critical point due to efficient absorption of field kinetic energy by heating the quantum spins. We quantify limits in which this phenomenon can be observed and generalize these results by developing a Kibble-Zurek scaling theory that incorporates the dynamic field. Our findings can potentially be interesting in the context of early universe physics, where the role of the driving field is played by the inflaton or a modulus.

  5. Perforation of domain wall by point mass

    E-Print Network [OSTI]

    D. V. Gal'tsov; E. Yu. Melkumova; P. A. Spirin

    2013-12-30

    We investigate collision of a point particle and an infinitely thin planar domain wall interacting gravitationally within the linearized gravity in Minkowski space-time of arbitrary dimension. In this setting we are able to describe analytically the perforation of the wall by an impinging particle, showing that it is accompanied by excitation of the spherical shock branon wave propagating outwards with the speed of light. Formally, the shock wave is a free solution of the branon wave equation which has to be added to ensure the validity of the retarded solution at the perforation point. Physically, the domain wall gets excited due to the shake caused by an instantaneous change of sign of the repulsive gravitational force. This effect is shown to hold, in particular, in four space-time dimensions, being applicable to the problem of cosmological domain walls.

  6. Perforation of domain wall by point mass

    E-Print Network [OSTI]

    Gal'tsov, D V; Spirin, P A

    2013-01-01

    We investigate collision of a point particle and an infinitely thin planar domain wall interacting gravitationally within the linearized gravity in Minkowski space-time of arbitrary dimension. In this setting we are able to describe analytically the perforation of the wall by an impinging particle, showing that it is accompanied by excitation of the spherical shock branon wave propagating outwards with the speed of light. Formally, the shock wave is a free solution of the branon wave equation which has to be added to ensure the validity of the retarded solution at the perforation point. Physically, the domain wall gets excited due to the shake caused by an instantaneous change of sign of the repulsive gravitational force. This effect is shown to hold, in particular, in four space-time dimensions, being applicable to the problem of cosmological domain walls.

  7. EIS-0153: Niagara Import Point Project

    Broader source: Energy.gov [DOE]

    The Federal Energy Regulatory Commission prepared this statement to assess the environmental impacts of the proposed Niagara Import Point project that would construct an interstate natural gas pipeline to transport gas from Canada and domestic sources to the Northeastern United States market. The U.S. Department of Energy's Office of Fossil Energy was a cooperating agency during statement development and adopted this statement on 6/15/1990.

  8. Focusing: coming to the point in metamaterials

    E-Print Network [OSTI]

    Sebastien Guenneau; Andre Diatta; Ross McPhedran

    2010-09-02

    The point of the paper is to show some limitations of geometrical optics in the analysis of subwavelength focusing. We analyze the resolution of the image of a line source radiating in the Maxwell fisheye and the Veselago-Pendry slab lens. The former optical medium is deduced from the stereographic projection of a virtual sphere and displays a heterogeneous refractive index n(r) which is proportional to the inverse of 1+r^2. The latter is described by a homogeneous, but negative, refractive index. It has been suggested that the fisheye makes a perfect lens without negative refraction [Leonhardt, Philbin arxiv:0805.4778v2]. However, we point out that the definition of super-resolution in such a heterogeneous medium should be computed with respect to the wavelength in a homogenized medium, and it is perhaps more adequate to talk about a conjugate image rather than a perfect image (the former does not necessarily contains the evanescent components of the source). We numerically find that both the Maxwell fisheye and a thick silver slab lens lead to a resolution close to lambda/3 in transverse magnetic polarization (electric field pointing orthogonal to the plane). We note a shift of the image plane in the latter lens. We also observe that two sources lead to multiple secondary images in the former lens, as confirmed from light rays travelling along geodesics of the virtual sphere. We further observe resolutions ranging from lambda/2 to nearly lambda/4 for magnetic dipoles of varying orientations of dipole moments within the fisheye in transverse electric polarization (magnetic field pointing orthogonal to the plane). Finally, we analyse the Eaton lens for which the source and its image are either located within a unit disc of air, or within a corona 1

  9. Low-melting point heat transfer fluid

    DOE Patents [OSTI]

    Cordaro, Joseph Gabriel (Oakland, CA); Bradshaw, Robert W. (Livermore, CA)

    2010-11-09

    A low-melting point, heat transfer fluid made of a mixture of five inorganic salts including about 29.1-33.5 mol % LiNO.sub.3, 0-3.9 mol % NaNO.sub.3, 2.4-8.2 mol % KNO.sub.3, 18.6-19.9 mol % NaNO.sub.2, and 40-45.6 mol % KNO.sub.2. These compositions can have liquidus temperatures below 80.degree. C. for some compositions.

  10. High speed point derivative microseismic detector

    DOE Patents [OSTI]

    Uhl, J.E.; Warpinski, N.R.; Whetten, E.B.

    1998-06-30

    A high speed microseismic event detector constructed in accordance with the present invention uses a point derivative comb to quickly and accurately detect microseismic events. Compressional and shear waves impinging upon microseismic receiver stations disposed to collect waves are converted into digital data and analyzed using a point derivative comb including assurance of quiet periods prior to declaration of microseismic events. If a sufficient number of quiet periods have passed, the square of a two point derivative of the incoming digital signal is compared to a trip level threshold exceeding the determined noise level to declare a valid trial event. The squaring of the derivative emphasizes the differences between noise and signal, and the valid event is preferably declared when the trip threshold has been exceeded over a temporal comb width to realize a comb over a given time period. Once a trial event has been declared, the event is verified through a spatial comb, which applies the temporal event comb to additional stations. The detector according to the present invention quickly and accurately detects initial compressional waves indicative of a microseismic event which typically exceed the ambient cultural noise level by a small amount, and distinguishes the waves from subsequent larger amplitude shear waves. 9 figs.

  11. High speed point derivative microseismic detector

    DOE Patents [OSTI]

    Uhl, James Eugene (Albuquerque, NM); Warpinski, Norman Raymond (Albuquerque, NM); Whetten, Ernest Blayne (Albuquerque, NM)

    1998-01-01

    A high speed microseismic event detector constructed in accordance with the present invention uses a point derivative comb to quickly and accurately detect microseismic events. Compressional and shear waves impinging upon microseismic receiver stations disposed to collect waves are converted into digital data and analyzed using a point derivative comb including assurance of quiet periods prior to declaration of microseismic events. If a sufficient number of quiet periods have passed, the square of a two point derivative of the incoming digital signal is compared to a trip level threshold exceeding the determined noise level to declare a valid trial event. The squaring of the derivative emphasizes the differences between noise and signal, and the valid event is preferably declared when the trip threshold has been exceeded over a temporal comb width to realize a comb over a given time period. Once a trial event has been declared, the event is verified through a spatial comb, which applies the temporal event comb to additional stations. The detector according to the present invention quickly and accurately detects initial compressional waves indicative of a microseismic event which typically exceed the ambient cultural noise level by a small amount, and distinguishes the waves from subsequent larger amplitude shear waves.

  12. Energy Department Authorizes Dominion Cove Point LNG to Export...

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

    Energy Department Authorizes Dominion Cove Point LNG to Export Liquefied Natural Gas Energy Department Authorizes Dominion Cove Point LNG to Export Liquefied Natural Gas May 7,...

  13. Fast Change Point Detection for Electricity Market Analysis

    E-Print Network [OSTI]

    Gu, William

    2014-01-01

    The trouble with electricity markets: understandingPoint Detection for Electricity Market Analysis William Gu ?Point Detection for Electricity Market Analysis William Gu,

  14. Wax Point Determinations Using Acoustic Resonance Spectroscopy

    SciTech Connect (OSTI)

    Bostick, D.T.; Jubin, R.T.; Schmidt, T.W.

    2001-06-01

    The thermodynamic characterization of the wax point of a given crude is essential in order to maintain flow conditions that prevent plugging of undersea pipelines. This report summarizes the efforts made towards applying an Acoustic Cavity Resonance Spectrometer (ACRS) to the determination of pressures and temperatures at which wax precipitates from crude. Phillips Petroleum Company, Inc., the CRADA participant, supplied the ACRS. The instrumentation was shipped to Dr. Thomas Schmidt of ORNL, the CRADA contractor, in May 2000 after preliminary software development performed under the guidance of Dr. Samuel Colgate and Dr. Evan House of the University of Florida, Gainesville, Fl. Upon receipt it became apparent that a number of modifications still needed to be made before the ACRS could be precisely and safely used for wax point measurements. This report reviews the sequence of alterations made to the ACRS, as well as defines the possible applications of the instrumentation once the modifications have been completed. The purpose of this Cooperative Research and Development Agreement (CRADA) between Phillips Petroleum Company, Inc. (Participant) and Lockheed Martin Energy Research Corporation (Contractor) was the measurement of the formation of solids in crude oils and petroleum products that are commonly transported through pipelines. This information is essential in the proper design, operation and maintenance of the petroleum pipeline system in the United States. Recently, new petroleum discoveries in the Gulf of Mexico have shown that there is a potential for plugging of undersea pipeline because of the precipitation of wax. It is important that the wax points of the expected crude oils be well characterized so that the production facilities for these new wells are capable of properly transporting the expected production. The goal of this work is to perform measurements of solids formation in crude oils and petroleum products supplied by the Participant. It is anticipated that these data will be used in the design of new production facilities and in the development of thermodynamic models that describe the behavior of wax-saturated petroleum.

  15. Tipping Point Renewable 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| Open Energy Information Serbia-EnhancingEt Al., 2013)Open EnergyTinox Jump to: navigation, searchTipping Point

  16. Global integrators based on equispaced points 

    E-Print Network [OSTI]

    Kirker, Martha Jane

    1966-01-01

    . Sims for the patient and understanding guidance I received during the preparation of this thesis. TABLE OF CONTENTS Chapter Page I. INTRODUCTION . . . . . . . . . . . . . 1 II. GLOBAL INTEGRATORS . ~ . ~ ~ ~ ~ ~ ~ ~ ~ e ~ 3 III. PROGRAM... DESCRIPTION . . . ~ 13 IVo RESULTS a e a a ~ o ~ a ~ ~ ~ ~ e ~ e ~ 18 BIBLIOGRAPHY 20 APPENDIX 21 C HAP TER I INTRODUCTION A set of functions wl(x) wg(x) w +1(x) and n+1 a set of points xl, x2, --- x +1 can be found such that n&1 f(n)du = S wi...

  17. FortyPoint Seven | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable Urban TransportFortistar LLC Jump to: navigation, search Name:FortyPoint

  18. Point Bio 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:QAsource History ViewMayo, Maryland:NPIProtectio1975) |Texas: Energy Resources JumpOhio:Pod GeneratingPoint Bio

  19. Beryllium Program Points of Contact - Hanford Site

    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 & InspectionsBeryllium and Chronic BerylliumProgramProgram Points

  20. Star Point Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbHSoloPage EditStamford,Energy Center Wind FarmPoint

  1. Starting Points | National Nuclear Security Administration

    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 GasAdministration Medal01 Sandia4) August 20123/%2A en Signature ofSebStarting Points |

  2. power point | OpenEI Community

    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 IncIowa (UtilityMichigan)data book Homefuelleasingoutages Homeplanningpower point

  3. Microsoft PowerPoint - BSQ-300.pptx

    Energy Savers [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 DeliciousMathematicsEnergyInterested Parties - WAPAEnergy May 28MarEnergy Microsoft PowerPoint -BSQ-300

  4. Points of Contact and Privacy Act Advisory

    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 NewsInformationJesseworkSURVEYI/OPerformancePi Day Pi Day Pi DayPlasmaandAbout UsPoints

  5. Event Year Requirements Induction 1 mandatory; 10 training points

    E-Print Network [OSTI]

    Obbard, Darren

    /masterclass 30 training points (module I); 50 training points (module I and II) 20 hours Training strand 3Event Year Requirements Induction 1 mandatory; 10 training points Symposium All mandatory; 20 training points in Y1 only Training strand 1: Research skills Thematic group meetings (4) Advanced

  6. Input Observer: Measuring Text Entry and Pointing Performance from

    E-Print Network [OSTI]

    Wobbrock, Jacob O.

    Input Observer: Measuring Text Entry and Pointing Performance from Naturalistic Everyday Computer that will be capable of measuring a user's text entry and pointing abilities from everyday computer use "in the wild for both text entry and mouse pointing. Keywords Text entry, mouse pointing, field studies, naturalistic

  7. Low-melting point heat transfer fluid

    DOE Patents [OSTI]

    Cordaro, Joseph G. (Oakland, CA); Bradshaw, Robert W. (Livermore, CA)

    2011-04-12

    A low-melting point, heat transfer fluid comprising a mixture of LiNO.sub.3, NaNO.sub.3, KNO.sub.3, NaNO.sub.2 and KNO.sub.2 salts where the Li, Na and K cations are present in amounts of about 20-33.5 mol % Li, about 18.6-40 mol % Na, and about 40-50.3 mol % K and where the nitrate and nitrite anions are present in amounts of about 36-50 mol % NO.sub.3, and about 50-62.5 mol % NO.sub.2. These compositions can have liquidus temperatures between 70.degree. C. and 80.degree. C. for some compositions.

  8. Two-point derivative dispersion relations

    E-Print Network [OSTI]

    Erasmo Ferreira; Javier Sesma

    2014-03-24

    A new derivation is given for the representation, under certain conditions, of the integral dispersion relations of scattering theory through local forms. The resulting expressions have been obtained through an independent procedure to construct the real part, and consist of new mathematical structures of double infinite summations of derivatives. In this new form the derivatives are calculated at the generic value of the energy $E$ and separately at the reference point $E=m$ that is the lower limit of the integration. This new form may be more interesting in certain circumstances and directly shows the origin of the difficulties in convergence that were present in the old truncated forms called standard-DDR. For all cases in which the reductions of the double to single sums were obtained in our previous work, leading to explicit demonstration of convergence, these new expressions are seen to be identical to the previous ones. We present, as a glossary, the most simplified explicit results for the DDR's in the cases of imaginary amplitudes of forms $(E/m)^\\lambda[\\ln (E/m)]^n$, that cover the cases of practical interest in particle physics phenomenology at high energies. We explicitly study the expressions for the cases with $\\lambda$ negative odd integers, that require identification of cancelation of singularities, and provide the corresponding final results.

  9. on equilibrium points of logarithmic and newtonian potentials

    E-Print Network [OSTI]

    2006-07-18

    Thus the question is whether such a field must always have an equilibrium point, that is a point upon which a free electron (or wire) once placed would remain.

  10. Scott Runnels of Computational Physics to teach at West Point

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

    at West Point Runnels has been selected for a two-year faculty post in the Department of Physics and Nuclear Engineering at West Point. March 19, 2013 Scott Runnels Scott Runnels...

  11. Improvements in floating point addition/subtraction operations

    DOE Patents [OSTI]

    Farmwald, P.M.

    1984-02-24

    Apparatus is described for decreasing the latency time associated with floating point addition and subtraction in a computer, using a novel bifurcated, pre-normalization/post-normalization approach that distinguishes between differences of floating point exponents.

  12. A Martingale Approach to Point Processes in the Plane

    E-Print Network [OSTI]

    Merzbach, Ely; Nualart, David

    1988-02-05

    A rigorous definition of two-parameter point processes is given as a distribution of a denumerable number of random points in the plane. A characterization with stopping lines and relation with predictability are obtained. Using the one...

  13. Period tripling accumulation point for complexified Henon map

    E-Print Network [OSTI]

    O. B. Isaeva; S. P. Kuznetsov

    2005-09-06

    Accumulation point of period-tripling bifurcations for complexified Henon map is found. Universal scaling properties of parameter space and Fourier spectrum intrinsic to this critical point is demonstrated.

  14. Indirect L to T point optical transition in bismuth nanowires

    E-Print Network [OSTI]

    Levin, A. J.

    An indirect electronic transition from the L point valence band to the T point valence band has been previously observed in Bi nanowires oriented along the [011? 2] crystalline direction (used by Black et al. and by Reppert ...

  15. CenterPoint Energy Low-Rise Multi Family Program

    Broader source: Energy.gov [DOE]

    Note: This Incentive is only available to customers in the CenterPoint Energy Houston electric territory.

  16. CenterPoint Energy Healthcare Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    Note: Program is only available to electric customers in CenterPoint Energy's service territory (greater Houston, Texas area)

  17. Sur les surfaces lorentziennes compactes sans points conjugus

    E-Print Network [OSTI]

    Mounoud, Pierre

    Sur les surfaces lorentziennes compactes sans points conjugués CHRISTOPHE BAVARD PIERRE MOUNOUD Nous prouvons l'existence de métriques sans points conjugués dans toute com- posante connexe de l lorentziens sans points conjugués non plats contraste avec la situation riemannienne (théorème de E. Hopf). We

  18. SPATIAL POINT PROCESSES AND GRAPH BASED STATISTICAL FEATURES

    E-Print Network [OSTI]

    Jyväskylä, University of

    2010 2000 Mathematics Subject Classification. 60G55, 62-07, 62M30. ISSN 1457-9235 #12;SPATIAL POINT Classification. 60G55, 62-07, 62M30. 1 #12;Spatial point processes and graph based statistical features Tuomas library has been developed for the computation of the graph-based summaries. Keywords: Spatial point

  19. Coarser connected topologies and non-normality points

    E-Print Network [OSTI]

    Yengulalp, Lynne Christine

    2009-01-01

    point of the Stone-Cech remainder of a space a non-normality point of the remainder? We will discuss the question in the case that X is a discrete space and then when X is a metric space without isolated points. We show that under certain set...

  20. COE March 4, 2009 Fractal Point Events in Physics, Biology,

    E-Print Network [OSTI]

    Teich, Malvin C.

    -CONVERSION: ENTANGLED PHOTONS Laser c(2) Crystal Signal Idler Pump kr wr r ks ws s ki wi i wr = ws + wi RANDOM POINT EVENTS IN NEUROPHYSIOLOGY WHAT ARE THE COUNTING STATISTICS OF THESE POINT EVENTS? #12;COE ­ March 4, 2009 COUNTING STATISTICS FOR POINT EVENTS IN THE MAMMALIAN AUDITORY SYSTEM Eighth

  1. Seven points in P2 and the universal Kummer threefold

    E-Print Network [OSTI]

    California at Berkeley, University of

    Sturmfels (Seven points in P2 and the universal Kummer threefoldSep 27, 2012 6 / 17 #12;Weyl group on P6Seven points in P2 and the universal Kummer threefold Qingchun Ren UC Berkeley Joint work Sam, Gus Schrader and Bernd Sturmfels (Seven points in P2 and the universal Kummer threefoldSep 27

  2. Access Point Selection for Improving Throughput Fairness in Wireless LANs

    E-Print Network [OSTI]

    Siris, Vasilios A.

    Access Point Selection for Improving Throughput Fairness in Wireless LANs Vasilios A. Siris investigate the problem of access point selection in wireless LANs based on the IEEE 802.11 standard, when solely at the wireless stations, which passively monitor the activity of each access point's channel

  3. Best Entry Points for Structured Document Retrieval Part I: Characteristics

    E-Print Network [OSTI]

    Lalmas, Mounia

    Best Entry Points for Structured Document Retrieval ­ Part I: Characteristics Jane Reida , Mounia documents. This paper examines the concept of best entry points, which are document components from which investigates the basic characteristics of best entry points. Keywords: Structured document retrieval, focussed

  4. An Evaluation of Volumetric Interest Points University of Cambridge

    E-Print Network [OSTI]

    Martin, Ralph R.

    An Evaluation of Volumetric Interest Points Tsz-Ho Yu University of Cambridge Cambridge, UK thy23 the first performance eval- uation of interest points on scalar volumetric data. Such data encodes 3D shape detectors of interest points in volumetric data, in terms of repeatability, number and nature of interest

  5. Combining Formal Methods and Safety Analysis -The ForMoSA Approach

    E-Print Network [OSTI]

    Reif, Wolfgang

    and quantitative analysis. The For- MoSA approach combines these techniques to answer these safety rele- vant level of con- fidence formal methods from software engineering have been used. Safety rele- vant

  6. Combining Formal Methods and Safety Analysis -The ForMoSA Approach

    E-Print Network [OSTI]

    Reif, Wolfgang

    techniques [13, 20] like failure modes and effects analysis (FMEA) or fault tree analysis (FTA). The combina in which a component may fail. The leaves of all fault trees are failure modes. The starting column of FMEA

  7. Redevelopment and the Politics of Place in Bayview-Hunters Point

    E-Print Network [OSTI]

    Dillon, Lindsey

    2011-01-01

    2011. 2011. Hunters Point Shipyard: A Shifting Landscape.Point/Hunters Point Shipyard Phase II: Urban Design1973. Hunters Point Naval Shipyard Economic Re-Use Study.

  8. Compound nucleus decay: Comparison between saddle point and scission point barriers

    SciTech Connect (OSTI)

    Santos, T. J.; Carlson, B. V.

    2014-11-11

    One of the principal characteristics of nuclear multifragmentation is the emission of complex fragments of intermediate mass. An extension of the statistical multifragmentation model has been developed, in which the process can be interpreted as the near simultaneous limit of a series of sequential binary decays. In this extension, intermediate mass fragment emissions are described by expressions almost identical to those of light particle emission. At lower temperatures, similar expressions have been shown to furnish a good description of very light intermediate mass fragment emission but not of the emission of heavier fragments, which seems to be determined by the transition density at the saddle-point rather than at the scission point. Here, we wish to compare these different formulations of intermediate fragmment emission and analyze the extent to which they remain distinguishable at high excitation energy.

  9. Dual-domain point diffraction interferometer

    DOE Patents [OSTI]

    Naulleau, Patrick P. (5239 Miles Ave., Apt. A, Oakland, CA 94618); Goldberg, Kenneth Alan (1195 Keeler Ave., Berkeley, CA 94708)

    2000-01-01

    A hybrid spatial/temporal-domain point diffraction interferometer (referred to as the dual-domain PS/PDI) that is capable of suppressing the scattered-reference-light noise that hinders the conventional PS/PDI is provided. The dual-domain PS/PDI combines the separate noise-suppression capabilities of the widely-used phase-shifting and Fourier-transform fringe pattern analysis methods. The dual-domain PS/PDI relies on both a more restrictive implementation of the image plane PS/PDI mask and a new analysis method to be applied to the interferograms generated and recorded by the modified PS/PDI. The more restrictive PS/PDI mask guarantees the elimination of spatial-frequency crosstalk between the signal and the scattered-light noise arising from scattered-reference-light interfering with the test beam. The new dual-domain analysis method is then used to eliminate scattered-light noise arising from both the scattered-reference-light interfering with the test beam and the scattered-reference-light interfering with the "true" pinhole-diffracted reference light. The dual-domain analysis method has also been demonstrated to provide performance enhancement when using the non-optimized standard PS/PDI design. The dual-domain PS/PDI is essentially a three-tiered filtering system composed of lowpass spatial-filtering the test-beam electric field using the more restrictive PS/PDI mask, bandpass spatial-filtering the individual interferogram irradiance frames making up the phase-shifting series, and bandpass temporal-filtering the phase-shifting series as a whole.

  10. Window performance for human thermal comfort

    E-Print Network [OSTI]

    Huizenga, C; Zhang, H.; Mattelaer, P.; Yu, T.; Arens, Edward A; Lyons, P.

    2006-01-01

    Conference on Environmental Ergonomics, Fukuoka, Japan. 21.Ventilated Spaces”. Ergonomics, 29, 215 - 235. 36. Fanger,and Workload”. Applied Ergonomics, 32, 407 – 417. 54.

  11. Evolving opportunities for providing thermal comfort

    E-Print Network [OSTI]

    Brager, Gail; Zhang, Hui; Arens, Edward

    2015-01-01

    1 Setting priorities for net-zero energy buildings Source:conversely even a zero-net energy build- ing is a failure if

  12. Modeling thermal comfort in stratified environments

    E-Print Network [OSTI]

    Zhang, H.; Huizenga, C.; Arens, Edward A; Yu, T.

    2005-01-01

    non-uniform thermal environments", European Journal of7730, 1994, Moderate Thermal Environments – Determination offor assessing complex thermal environments,” Building and

  13. Evolving opportunities for providing thermal comfort

    E-Print Network [OSTI]

    Brager, Gail; Zhang, Hui; Arens, Edward

    2015-01-01

    field measurement of thermal environment and questionnaireand non-uniform thermal environments, PhD Thesis, Center forPerception of transient thermal environments: Pleasure and

  14. RESIDENTIAL THERMOSTATS: COMFORT CONTROLS IN CALIFORNIA HOMES

    E-Print Network [OSTI]

    Meier, Alan K.

    2008-01-01

    influencing space heat and heat pump efficiency from aand through-the-wall heat pumps. If setback thermostats areinforms the user that a heat pump’s back-up heater is

  15. RESIDENTIAL THERMOSTATS: COMFORT CONTROLS IN CALIFORNIA HOMES

    E-Print Network [OSTI]

    Meier, Alan K.

    2008-01-01

    for Residential Winter and Summer Air Conditioning.Air Conditioning Contractors of America. Washington, DC.refrigerating and Air-conditioning Engineers, Atlanta, GA.

  16. Cushion comfort constraint : choreographing infrastructures of mobility

    E-Print Network [OSTI]

    Latortue, Cynthia (Cynthia Pascale)

    2012-01-01

    Surface in the city is scarce. As a typical day in the city progresses, the inhabitants' surface demands transform. A children's playground goes unused at night, the valuable surface should be re-adapted for an alternative ...

  17. RESIDENTIAL THERMOSTATS: COMFORT CONTROLS IN CALIFORNIA HOMES

    E-Print Network [OSTI]

    Meier, Alan K.

    2008-01-01

    on boilers, hot water, district heating, spot heating, andwood to charcoal to district heating. www.tecsoc.org/pubs/pellets) or via district heating systems. Air conditioning

  18. How to Get Comfortable with Dehumidification 

    E-Print Network [OSTI]

    Beever, R.

    1996-01-01

    into the desiccant, thus causing the air to be dehumidified. Desiccants can attract, collect, and hold 10 to 10,000 percent of their dry weight in water vapor (3). Normal Cooling Load Set-Up Cooling Load PJC Capacity - Bin Hours Figure 2 Houston Cooling... the air conditioner was being run and the dehumidifier was not operated. Relative humidity outdoor ranged from 62% up to 95%. Relative humidity indoor ranged from about 49% up to 58%. Through out tlus period the fluctuation in the range was wide...

  19. Correlations in thermal comfort and natural wind

    E-Print Network [OSTI]

    Kang, Ki-Nam; Song, Doosam; Schiavon, Stefano

    2013-01-01

    the average wind velocity and power spectrum exponent (?-of natural wind more accurately, power spectral analysisdata of natural wind versus the power spectral analysis

  20. Comfort-constrained distributed heat pump management

    E-Print Network [OSTI]

    Parkinson, Simon; Crawford, Curran; Djilali, Ned

    2011-01-01

    This paper introduces the design of a demand response network control strategy aimed at thermostatically controlled electric heating and cooling systems in buildings. The method relies on the use of programmable communicating thermostats, which are able to provide important component-level state variables to a system-level central controller. This information can be used to build power density distribution functions for the aggregate heat pump load. These functions lay out the fundamental basis for the methodology by allowing for consideration of customer-level constraints within the system-level decision making process. The proposed strategy is then implemented in a computational model to simulate a distribution of buildings, where the aggregate heat pump load is managed to provide the regulation services needed to successfully integrate wind power generators. Increased exploitation of wind resources will place similarly themed ancillary services in high-demand, traditionally provided by dispatchable energy ...

  1. Window performance for human thermal comfort

    E-Print Network [OSTI]

    Huizenga, C; Zhang, H.; Mattelaer, P.; Yu, T.; Arens, Edward A; Lyons, P.

    2006-01-01

    ? = 0.08 face 4, 6/16/6/16/6mm G8 Table 14: Range of glazinglow- ? coating (G5 and G8) greatly improves the solarm²] G1 G2 G3 G4 G5 G6 G7 G8 Figure 35: Scenario 1 – Maximum

  2. RESIDENTIAL THERMOSTATS: COMFORT CONTROLS IN CALIFORNIA HOMES

    E-Print Network [OSTI]

    Meier, Alan K.

    2008-01-01

    They utilized under-floor heating, where hot air from a woodhot water for radiator or floor heating. Central heating andtemperature and floor temperature (because some heating may

  3. Window performance for human thermal comfort

    E-Print Network [OSTI]

    Huizenga, C; Zhang, H.; Mattelaer, P.; Yu, T.; Arens, Edward A; Lyons, P.

    2006-01-01

    in the Elderly When Using Floor Heating and Air ConditioningS. 2001, “A Review of Floor Heating Research in Japan”.Literatures Related to Floor Heating Environment in Japan”.

  4. The Human leading the Thermal Comfort Control 

    E-Print Network [OSTI]

    Zeiler, W.; Boxem, G.; Van Houten, R.; Vissers, D.; Maaijen, R.

    2012-01-01

    Many buildings were designed and calculated by advanced software tools and simulation tools. However in real practice these buildings do not achieve the calculated energy efficiency, but use up to 40 to 50% more energy. One of the reasons...

  5. Window performance for human thermal comfort

    E-Print Network [OSTI]

    Huizenga, C; Zhang, H.; Mattelaer, P.; Yu, T.; Arens, Edward A; Lyons, P.

    2006-01-01

    Effect of Convection and Radiation Heat Transfer on Thermalgovern the indirect heat transfer of radiation to the indoorto calculate the radiation heat transfer between the body

  6. RESIDENTIAL THERMOSTATS: COMFORT CONTROLS IN CALIFORNIA HOMES

    SciTech Connect (OSTI)

    Meier, Alan K.; Walker, Iain

    2008-03-02

    This report summarizes results of a literature review, a workshop, and many meetings with demand response and thermostat researchers and implementers. The information obtained from these resources was used to identify key issues of thermostat performance from both energy savings and peak demand perspectives. A research plan was developed to address these issues and activities have already begun to pursue the research agenda.

  7. RESIDENTIAL THERMOSTATS: COMFORT CONTROLS IN CALIFORNIA HOMES

    E-Print Network [OSTI]

    Meier, Alan K.

    2008-01-01

    Control. Personal and Ubiquitous Computing, Vol. 7, pp. 53-Control. Personal and Ubiquitous Computing, Vol. 7, pp. 53-

  8. Correlations in thermal comfort and natural wind

    E-Print Network [OSTI]

    Kang, Ki-Nam; Song, Doosam; Schiavon, Stefano

    2013-01-01

    Chaotic ?uctuation in natural wind and its application toof natural and mechanical wind in built environment usingcharacteristics of natural wind. Refrigeration 71 (821),

  9. Window performance for human thermal comfort

    E-Print Network [OSTI]

    Huizenga, C; Zhang, H.; Mattelaer, P.; Yu, T.; Arens, Edward A; Lyons, P.

    2006-01-01

    of Effects of Solar Radiation and Raradiation from Windowsoutdoor air temperature and solar radiation. Both WINDOW andindoor temperature = 24ºC and solar radiation = 783 W/m 2 ).

  10. Jacobi fields, conjugate points and cut points on timelike geodesics in special spacetimes

    E-Print Network [OSTI]

    Leszek M. Soko?owski; Zdzis?aw A. Golda

    2015-07-09

    Several physical problems such as the `twin paradox' in curved spacetimes have purely geometrical nature and may be reduced to studying properties of bundles of timelike geodesics. The paper is a general introduction to systematic investigations of the geodesic structure of physically relevant spacetimes. The investigations are focussed on the search of locally and globally maximal timelike geodesics. The method of dealing with the local problem is in a sense algorithmic and is based on the geodesic deviation equation. Yet the search for globally maximal geodesics is non-algorithmic and cannot be treated analytically by solving a differential equation. Here one must apply a mixture of methods: spacetime symmetries (we have effectively employed the spherical symmetry), the use of the comoving coordinates adapted to the given congruence of timelike geodesics and the conjugate points on these geodesics. All these methods have been effectively applied in both the local and global problems in a number of simple and important spacetimes and their outcomes have already been published in three papers. Our approach shows that even in Schwarzschild spacetime (as well as in other static spherically symetric ones) one can find a new unexpected geometrical feature: instead of one there are three different infinite sets of conjugate points on each stable circular timelike geodesic curve. Due to problems with solving differential equations we are dealing solely with radial and circular geodesics.

  11. Lunar distances observed by Cook's expedition at Point Venus in ...

    E-Print Network [OSTI]

    In the modern navigator's language this is called GHA Aries (Greenwich hour angle of the point of the spring equinox). One of the two astronomers who made ...

  12. Electrochemical Surface Potential due to Classical Point Charge...

    Office of Scientific and Technical Information (OSTI)

    Potential due to Classical Point Charge Models Drives Anion Adsorption to the Air-Water Interface Citation Details In-Document Search Title: Electrochemical Surface Potential...

  13. Update Invalid Reservation Points for Transmission Service Requests...

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

    Teams Customer Training Interconnection Notices Rates Standards of Conduct Tariff TF Web Based Training Update: Invalid Reservation Points for Transmission Service Requests on...

  14. Topological phase diagram and saddle point singularity in a tunable...

    Office of Scientific and Technical Information (OSTI)

    Topological phase diagram and saddle point singularity in a tunable topological crystalline insulator Citation Details In-Document Search This content will become publicly...

  15. FIXED POINT INDICES AND MANIFOLDS WITH COLLARS Chen ...

    E-Print Network [OSTI]

    2005-05-05

    Brasiliero de Topologia 53 (1988), 59–67, Universidade de Sao Paulo, Sao Carlos S. P., Brasil. [8]. , A de Moivre like formula for fixed point theory, Proceedings ...

  16. ChargePoint is Helping Electrify America's Transportation | Department...

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

    of plug-in electric vehicles (PEVs), the Energy Department supported the ChargePoint America project in 2009 under the American Recovery and Reinvestment Act. At the...

  17. Generating and executing programs for a floating point single...

    Office of Scientific and Technical Information (OSTI)

    Generating and executing programs for a floating point single instruction multiple data instruction set architecture Citation Details In-Document Search Title: Generating and...

  18. New York Nuclear Profile - Nine Mile Point Nuclear Station

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

    Nine Mile Point Nuclear Station" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License...

  19. singularities, swallowtails and dirac points. an analysis for families

    E-Print Network [OSTI]

    2012-07-05

    Jul 5, 2012 ... in graphene). Of particular interest are Dirac points in triply periodic materials, such as the Gyroid network: they can be viewed as mag-.

  20. Energy Department Authorizes Dominion's Proposed Cove Point Facility...

    Office of Environmental Management (EM)

    Department announced today that it has conditionally authorized Dominion Cove Point LNG, LP to export domestically produced liquefied natural gas (LNG) to countries that do...

  1. Point-Wise Quantification of Craniofacial Stephanie Lanche

    E-Print Network [OSTI]

    -splines) transformations. Qualitative and quantitative validations of the presented methods were carried out This thesis presents a methodology of point-wise quantification of craniofacial asymmetry. The asymmetry

  2. CenterPoint Energy A/C Distributor Program

    Broader source: Energy.gov [DOE]

    Note:  This incentive is only available to customers within CenterPoint Energy’s electric service territory (greater Houston area, Texas)

  3. Optimizing minimum free-energy crossing points in solution: Linear...

    Office of Scientific and Technical Information (OSTI)

    Optimizing minimum free-energy crossing points in solution: Linear-response free energyspin-flip density functional theory approach Citation Details In-Document Search Title:...

  4. NASH-STAMPACCHIA EQUILIBRIUM POINTS ON MANIFOLDS ALEXANDRU KRISTALY

    E-Print Network [OSTI]

    NASH-STAMPACCHIA EQUILIBRIUM POINTS ON MANIFOLDS ALEXANDRU KRIST´ALY Abstract. Motivated by Nash equilibrium problems on 'curved' strategy sets, the concept of Nash-Stampacchia equilibrium points Riemannian manifolds. Characterization, existence, and stability of Nash- Stampacchia equilibria are studied

  5. Tetrahedral Mesh Generation with Good Dihedral Angles Using Point Lattices

    E-Print Network [OSTI]

    O'Brien, James F.

    be of good quality; in partic- ular there should be no plane or dihedral angle close to 0 or 180 degreesTetrahedral Mesh Generation with Good Dihedral Angles Using Point Lattices by Franc¸ois Labelle B Tetrahedral Mesh Generation with Good Dihedral Angles Using Point Lattices by Franc¸ois Labelle Doctor

  6. An Empirical Comparison of "Wiimote" Gun Attachments for Pointing Tasks

    E-Print Network [OSTI]

    MacKenzie, Scott

    An Empirical Comparison of "Wiimote" Gun Attachments for Pointing Tasks Victoria McArthur, Steven J, a plastic gun-shaped shell designed for shooter games, the Wii Wheel, designed for driving games is to investigate whether gun- shaped peripherals help or hinder pointing performance with the Wiimote

  7. (sketches 102) Interactive Ray Tracing of Point-based Models

    E-Print Network [OSTI]

    Wald, Ingo

    " head, each point represented by a disc. b) The splats blendet to an implicit function and intersected(x) are the weighted averages of the positions resp. normals of all points (pi,ni,ri) overlapping x. Part II: Choosing optimal "Splat" Radii. Instead of having the user decide on the "optimal" splat radius, we used the method

  8. Evaluating Energy Efficiency of Floating Point Matrix Multiplication on FPGAs

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    Evaluating Energy Efficiency of Floating Point Matrix Multiplication on FPGAs Kiran Kumar Matam, prasanna}@usc.edu Abstract--Energy efficiency has emerged as one of the key performance metrics in scientific computing. In this work, we evaluate the energy efficiency of floating point matrix multipli

  9. PAYLOAD POINTING AND ACTIVE VIBRATION ISOLATION USING HEXAPOD PLATFORMS

    E-Print Network [OSTI]

    PAYLOAD POINTING AND ACTIVE VIBRATION ISOLATION USING HEXAPOD PLATFORMS Hong-Jen Chen* , Ronald M isolation techniques on hexapods at the Spacecraft Research and Design Center (SRDC) of Naval Postgraduate School (NPS). The center has two hexapod platforms: Ultra Quiet Platform (UQP) and Precision Pointing

  10. Jet schemes of rational double point singularities Hussein Mourtada

    E-Print Network [OSTI]

    Bodin, Arnaud

    Jet schemes of rational double point singularities Hussein Mourtada Abstract. We prove that for m N, m big enough, the number of irreducible compo- nents of the schemes of m-jets centered at a point on the minimal reso- lution of the singularity. We also relate some irreducible components of the jet schemes

  11. MATRIX RATIONAL INTERPOLATION WITH POLES AS INTERPOLATION POINTS

    E-Print Network [OSTI]

    Labahn, George

    MATRIX RATIONAL INTERPOLATION WITH POLES AS INTERPOLATION POINTS M. VAN BAREL Department, we show the equivalence between matrix rational interpolation problems with poles as interpolation points and no-pole problems. This equivalence provides an effective method for computing matrix rational

  12. Mathematical features of Whitehead's point-free geometry

    E-Print Network [OSTI]

    Gerla, Giangiacomo

    1 Mathematical features of Whitehead's point- free geometry In HANDBOOK OF WHITEHEADIAN PROCESS quote computability theory, lat- tice theory, computer science. Now, the basic ideas of point over' and is the symbol for the fundamental relation of extension." Moreover, Whitehead in PNK lists

  13. Spawning rings of exceptional points out of Dirac cones

    E-Print Network [OSTI]

    Zhen, Bo; Igarashi, Yuichi; Lu, Ling; Kaminer, Ido; Pick, Adi; Chua, Song-Liang; Joannopoulos, John D; Solja?i?, Marin

    2015-01-01

    The Dirac cone underlies many unique electronic properties of graphene and topological insulators, and its band structure--two conical bands touching at a single point--has also been realized for photons in waveguide arrays, atoms in optical lattices, and through accidental degeneracy. Deformations of the Dirac cone often reveal intriguing properties; an example is the quantum Hall effect, where a constant magnetic field breaks the Dirac cone into isolated Landau levels. A seemingly unrelated phenomenon is the exceptional point, also known as the parity-time symmetry breaking point, where two resonances coincide in both their positions and widths. Exceptional points lead to counter-intuitive phenomena such as loss-induced transparency, unidirectional transmission or reflection, and lasers with reversed pump dependence or single-mode operation. These two fields of research are in fact connected: here we discover the ability of a Dirac cone to evolve into a ring of exceptional points, which we call an "exceptio...

  14. Distributing many points on spheres: minimal energy and designs

    E-Print Network [OSTI]

    Johann S. Brauchart; Peter J. Grabner

    2014-11-07

    This survey discusses recent developments in the context of spherical designs and minimal energy point configurations on spheres. The recent solution of the long standing problem of the existence of spherical $t$-designs on $\\mathbb{S}^d$ with $\\mathcal{O}(t^d)$ number of points by A. Bondarenko, D. Radchenko, and M. Viazovska attracted new interest to this subject. Secondly, D. P. Hardin and E. B. Saff proved that point sets minimising the discrete Riesz energy on $\\mathbb{S}^d$ in the hypersingular case are asymptotically uniformly distributed. Both results are of great relevance to the problem of describing the quality of point distributions on $\\mathbb{S}^d$, as well as finding point sets, which exhibit good distribution behaviour with respect to various quality measures.

  15. Non-rigid point set registration: Coherent Point Drift Andriy Myronenko Xubo Song Miguel A. Carreira-Perpi~nan

    E-Print Network [OSTI]

    Carreira-Perpiñán, Miguel Á.

    for many computer vision applications such as ro- bot navigation, image guided surgery, motion tracking, point set correspondence, image segmentation and shape/pattern matching. The registration problem, the point locations is the most general of all features. Registration techniques can be rigid or non

  16. Unifying Bit-width Optimisation for Fixed-point and Floating-point Designs Altaf Abdul Gaffar1

    E-Print Network [OSTI]

    Mencer, Oskar

    Unifying Bit-width Optimisation for Fixed-point and Floating-point Designs Altaf Abdul Gaffar1 , Oskar Mencer1 , Wayne Luk1 and Peter Y.K. Cheung2 1 Department of Computing, Imperial College, London SW7 2BZ, UK. 2 Department of EEE, Imperial College, London SW7 2BT, UK. Abstract This paper presents

  17. On the nature of unstable equilibrium points in power systems

    SciTech Connect (OSTI)

    Berggren, B.; Andersson, G. . Dept. of Electric Power Systems)

    1993-05-01

    This paper concerns the application of direct methods for transient stability analysis of stressed power systems. One of the most important issues in this area is to find the controlling unstable equilibrium point for the disturbance under consideration. This paper provides a conceptual framework for discussing stable and unstable equilibrium points in power systems based on simple topological arguments. It is for instance shown that every conceivable case of system separation can be related to a specific unstable equilibrium point (u.e.p) in an unloaded system. This result can be seen as a verification of the soundness of the often used corrected corner point approximation and ray point approximation, since these two approximations would give the same unstable equilibrium points in an unloaded system. Moreover, it is shown, by an example, that some of these unstable equilibrium points can disappear when the loading of the system increases. The implications of the findings of this paper are discussed for the so-called MOD method of finding the controlling u.e.p., which is used in some software packages. Finally, a method based on a combination of MOD method and the BCU method is outlined and proposed as the subject of future investigation.

  18. The slopes determined by n points in the plane

    E-Print Network [OSTI]

    Martin, Jeremy L.

    2006-01-01

    field k,andletG be a graph with vertices V and edges E.Apicture P of G consists of a point P(v)for each vertex and a line P(e) for each edge, subject to the condition that P(v) ? P(e) whenever v is an endpoint of e.Thusthedataofn points and parenleftbig... n 2 parenrightbig lines described earlier is a picture of the complete graph K n on n vertices. The set of all pictures of G is called the picture space X(G). A picture is generic if the points P(v) are all different; the closure of the locus...

  19. Unsteady Reversed Stagnation-Point Flow over a Flat Plate

    E-Print Network [OSTI]

    Sin, Vai Kuong

    2013-01-01

    This paper investigates the nature of the development of two-dimensional laminar flow of an incompressible fluid at the reversed stagnation-point. ". In this study, we revisit the problem of reversed stagnation-point flow over a flat plate. Proudman and Johnson (1962) first studied the flow and obtained an asymptotic solution by neglecting the viscous terms. This is no true in neglecting the viscous terms within the total flow field. In particular it is pointed out that for a plate impulsively accelerated from rest to a constant velocity V0 that a similarity solution to the self-similar ODE is obtained which is noteworthy completely analytical.

  20. X(5) Critical-Point Structure in a Finite System

    E-Print Network [OSTI]

    A. Leviatan

    2005-09-01

    X(5) is a paradigm for the structure at the critical point of a particular first-order phase transition for which the intrinsic energy surface has two degenerate minima separated by a low barrier. For a finite system, we show that the dynamics at such a critical point can be described by an effective deformation determined by minimizing the energy surface after projection onto angular momentum zero, and combined with two-level mixing. Wave functions of a particular analytic form are used to derive estimates for energies and quadrupole rates at the critical point.

  1. Advances in Plasmonic Technologies for Point of Care Applications

    E-Print Network [OSTI]

    Tokel, Onur

    Demand for accessible and affordable healthcare for infectious and chronic diseases present significant challenges for providing high-value and effective healthcare. Traditional approaches are expanding to include point-of-care ...

  2. Shot noise in systems with semi-Dirac points

    SciTech Connect (OSTI)

    Zhai, Feng; Wang, Juan

    2014-08-14

    We calculate the ballistic conductance and shot noise of electrons through a two-dimensional stripe system (width W ? length L) with semi-Dirac band-touching points. We find that the ratio between zero-temperature noise power and mean current (the Fano factor) is highly anisotropic. When the transport is along the linear-dispersion direction and the Fermi energy is fixed at the semi-Dirac point, the Fano factor has a universal value F?=?0.179 while a minimum conductivity exists and scales with L{sup 1?2}. Along the parabolic dispersion direction, the Fano factor at the semi-Dirac point has a contact-independent limit exceeding 0.9, which varies weakly with L due to the common-path interference of evanescent waves. Our findings suggest a way to discern the type of band-touching points.

  3. TIPPING POINT (Synopsis) (Roy Thompson, Open Studies Summer Course, 2010)

    E-Print Network [OSTI]

    stations; followed by factory chimneys; yellow blotches on her brilliantly white skin; coal-burning; her tipping point from which recovery will be impossible. A worried look crosses Tabbris' face. Act III

  4. Quantifying the Impact of Single Bit Flips on Floating Point...

    Office of Scientific and Technical Information (OSTI)

    specific bits in the most widely used IEEE floating-point representation in an architecture-agnostic manner, i.e., without requiring proprietary information such as bit flip...

  5. A Naturally Arising Self-Correcting Point Process

    E-Print Network [OSTI]

    Frederic Schoenberg

    2011-01-01

    stationary Poisson and renewal models (Johnson and Gutsell,f (t) = 0 for t Renewal models embody the notion thatDespite the popularity of renewal models for temporal point

  6. Point Cloud Context Analysis for Rehabilitation Grasping Assistance

    E-Print Network [OSTI]

    point clouds. This paper presents a low-cost, real- time system for semantic image labeling of household, and structuring movements in task-specific ways, such as passive assistance by relieving the weight of the arm

  7. Polynomial partitioning on varieties of codimension two and point ...

    E-Print Network [OSTI]

    2014-09-03

    Sep 3, 2014 ... [ES11], they made a breakthrough in a long-standing problem of Erd?os on the number of distinct distances between points in the plane, ...

  8. SeptemberOctober 2008 | PCI Journal54 Editor's quick points

    E-Print Network [OSTI]

    September­October 2008 | PCI Journal54 Editor's quick points n This paper proposes provisions, NCHRP project 12-64, was to expand the use of the AASHTO LRFD specifications to reinforced 54 #12;55PCI

  9. Characterization of a Dipole Flow System Using Point Velocity Probes

    E-Print Network [OSTI]

    Bowen, Ian Reed

    2010-11-23

    A direct groundwater velocity measurement tool, the Point Velocity Probe, was developed to measure velocities in the vertical and horizontal directions. The tool was designed and tested in a low-cost laboratory flow-through tank. Following testing...

  10. EIS-0349: Cherry Point Co-generation Project

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's decision to support BP West Coast Products, LLC proposal to construct and operate a 720-megawatt, natural-gas-fired, combined-cycle cogeneration facility on land adjacent to its BP Cherry Point Refinery.

  11. Energy Department Authorizes Dominion Cove Point LNG to Export...

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

    Dominion Cove Point LNG, LP to export domestically produced liquefied natural gas (LNG) to countries that do not have a Free Trade Agreement (FTA) with the United States. The Cove...

  12. Mixed Abstractions for Floating-Point Arithmetic Angelo Brillout

    E-Print Network [OSTI]

    Kröning, Daniel

    --Floating-point arithmetic is essential for many em- bedded and safety-critical systems, such as in the avionics industry by the the Toyota Motor Corporation, by the Semiconductor Research Corporation (SRC) under contract no. 2006-TJ-1539

  13. 2011 Radioactive Materials Usage Survey for Unmonitored Point Sources

    SciTech Connect (OSTI)

    Sturgeon, Richard W.

    2012-06-27

    This report provides the results of the 2011 Radioactive Materials Usage Survey for Unmonitored Point Sources (RMUS), which was updated by the Environmental Protection (ENV) Division's Environmental Stewardship (ES) at Los Alamos National Laboratory (LANL). ES classifies LANL emission sources into one of four Tiers, based on the potential effective dose equivalent (PEDE) calculated for each point source. Detailed descriptions of these tiers are provided in Section 3. The usage survey is conducted annually; in odd-numbered years the survey addresses all monitored and unmonitored point sources and in even-numbered years it addresses all Tier III and various selected other sources. This graded approach was designed to ensure that the appropriate emphasis is placed on point sources that have higher potential emissions to the environment. For calendar year (CY) 2011, ES has divided the usage survey into two distinct reports, one covering the monitored point sources (to be completed later this year) and this report covering all unmonitored point sources. This usage survey includes the following release points: (1) all unmonitored sources identified in the 2010 usage survey, (2) any new release points identified through the new project review (NPR) process, and (3) other release points as designated by the Rad-NESHAP Team Leader. Data for all unmonitored point sources at LANL is stored in the survey files at ES. LANL uses this survey data to help demonstrate compliance with Clean Air Act radioactive air emissions regulations (40 CFR 61, Subpart H). The remainder of this introduction provides a brief description of the information contained in each section. Section 2 of this report describes the methods that were employed for gathering usage survey data and for calculating usage, emissions, and dose for these point sources. It also references the appropriate ES procedures for further information. Section 3 describes the RMUS and explains how the survey results are organized. The RMUS Interview Form with the attached RMUS Process Form(s) provides the radioactive materials survey data by technical area (TA) and building number. The survey data for each release point includes information such as: exhaust stack identification number, room number, radioactive material source type (i.e., potential source or future potential source of air emissions), radionuclide, usage (in curies) and usage basis, physical state (gas, liquid, particulate, solid, or custom), release fraction (from Appendix D to 40 CFR 61, Subpart H), and process descriptions. In addition, the interview form also calculates emissions (in curies), lists mrem/Ci factors, calculates PEDEs, and states the location of the critical receptor for that release point. [The critical receptor is the maximum exposed off-site member of the public, specific to each individual facility.] Each of these data fields is described in this section. The Tier classification of release points, which was first introduced with the 1999 usage survey, is also described in detail in this section. Section 4 includes a brief discussion of the dose estimate methodology, and includes a discussion of several release points of particular interest in the CY 2011 usage survey report. It also includes a table of the calculated PEDEs for each release point at its critical receptor. Section 5 describes ES's approach to Quality Assurance (QA) for the usage survey. Satisfactory completion of the survey requires that team members responsible for Rad-NESHAP (National Emissions Standard for Hazardous Air Pollutants) compliance accurately collect and process several types of information, including radioactive materials usage data, process information, and supporting information. They must also perform and document the QA reviews outlined in Section 5.2.6 (Process Verification and Peer Review) of ES-RN, 'Quality Assurance Project Plan for the Rad-NESHAP Compliance Project' to verify that all information is complete and correct.

  14. Fast Change Point Detection for Electricity Market Analysis

    SciTech Connect (OSTI)

    UC Berkeley; Gu, William; Choi, Jaesik; Gu, Ming; Simon, Horst; Wu, Kesheng

    2013-08-25

    Electricity is a vital part of our daily life; therefore it is important to avoid irregularities such as the California Electricity Crisis of 2000 and 2001. In this work, we seek to predict anomalies using advanced machine learning algorithms. These algorithms are effective, but computationally expensive, especially if we plan to apply them on hourly electricity market data covering a number of years. To address this challenge, we significantly accelerate the computation of the Gaussian Process (GP) for time series data. In the context of a Change Point Detection (CPD) algorithm, we reduce its computational complexity from O($n^{5}$) to O($n^{2}$). Our efficient algorithm makes it possible to compute the Change Points using the hourly price data from the California Electricity Crisis. By comparing the detected Change Points with known events, we show that the Change Point Detection algorithm is indeed effective in detecting signals preceding major events.

  15. City of High Point Electric- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The City of High Point offers the Hometown Green Program to help customers reduce energy use. Under this program, rebates are available for newly constructed energy efficient homes, heat pumps, and...

  16. Change-Point Detection for High-Dimensional Data

    E-Print Network [OSTI]

    Xie, Yao

    November 5, 2013 #12;Power network monitoring a change-point Northeast blackout, 2003 Northeast blackout-time might prevent large-scale blackout 2 / 29 #12;Solar flare detection June, 2012. solar storm: a large

  17. A Behavioral Analysis of Clovis Point Morphology Using Geometric Morphometrics 

    E-Print Network [OSTI]

    Smith, Heather Lynn

    2012-02-14

    then be used to address research questions concerning Clovis point variability, and ultimately, the spread of this tool-form across North America. This paper addresses obstacles to behavioral investigations of stone tool morphology such as the effects...

  18. Laser Radar Point-Target Localization at High Photon Efficiency

    E-Print Network [OSTI]

    Shapiro, Jeffrey H.

    2013-01-01

    Minimum error-probability laser radar point-target localization is analyzed, including the effects of dark counts, background counts, and target speckle. Results from preliminary table-top experiments are reported.

  19. Advances in interior point methods and column generation 

    E-Print Network [OSTI]

    González Brevis, Pablo; Brevis, Pablo

    2013-11-28

    In this thesis we study how to efficiently combine the column generation technique (CG) and interior point methods (IPMs) for solving the relaxation of a selection of integer programming problems. In order to obtain an ...

  20. Method of making a non-lead hollow point bullet

    DOE Patents [OSTI]

    Vaughn, Norman L.; Lowden, Richard A.

    2003-10-07

    The method of making a non-lead hollow point bullet has the steps of a) compressing an unsintered powdered metal composite core into a jacket, b) punching a hollow cavity tip portion into the core, c) seating an insert, the insert having a hollow point tip and a tail protrusion, on top of the core such that the tail protrusion couples with the hollow cavity tip portion, and d) swaging the open tip of the jacket.

  1. Radar antenna pointing for optimized signal to noise ratio.

    SciTech Connect (OSTI)

    Doerry, Armin Walter; Marquette, Brandeis

    2013-01-01

    The Signal-to-Noise Ratio (SNR) of a radar echo signal will vary across a range swath, due to spherical wavefront spreading, atmospheric attenuation, and antenna beam illumination. The antenna beam illumination will depend on antenna pointing. Calculations of geometry are complicated by the curved earth, and atmospheric refraction. This report investigates optimizing antenna pointing to maximize the minimum SNR across the range swath.

  2. Tone and point of view in Thackeray's Henry Esmond 

    E-Print Network [OSTI]

    Ellison, Gerald Vance

    1966-01-01

    attitudes with those of Henry Esmond can be made. Second, ~Henr Esmond, like many of Thackeray's other works, contains some autobiographical material. Ray points out that Esmond is the most melancholy of Thackeray's novels, a point of which he was quite... aware while he wrote his book and which filled him with the gloomiest forebodings con- cerning its chances of popular success. The atmosphere of melancholy that pervades Esmond is explained if we examine its "secret history, " if we note down...

  3. 3 Linear Point Distribution Models 3.1 Introduction

    E-Print Network [OSTI]

    Bowden, Richard

    . Figure 3.2.2 - Hyper-elipsoid in n Dimensional Space x v1 v3 v2 z y v = eigenvectors Hyper a point in a 2n dimensional space (xi n2 ) and each vector is similar in shape, each example will produce a similar point in this 2n dimensional shape space. In fact, it would be expected that the training set

  4. On simple modules for certain pointed Hopf algebras 

    E-Print Network [OSTI]

    Pereira Lopez, Mariana

    2007-04-25

    -1 ON SIMPLE MODULES FOR CERTAIN POINTED HOPF ALGEBRAS A Dissertation by MARIANA PEREIRA LOPEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfifllment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2006... Major Subject: Mathematics ON SIMPLE MODULES FOR CERTAIN POINTED HOPF ALGEBRAS A Dissertation by MARIANA PEREIRA LOPEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfifllment of the requirements for the degree...

  5. Point kinetics calculations with fully coupled thermal fluids reactivity feedback

    SciTech Connect (OSTI)

    Zhang, H.; Zou, L.; Andrs, D.; Zhao, H.; Martineau, R.

    2013-07-01

    The point kinetics model has been widely used in the analysis of the transient behavior of a nuclear reactor. In the traditional nuclear reactor system safety analysis codes such as RELAP5, the reactivity feedback effects are calculated in a loosely coupled fashion through operator splitting approach. This paper discusses the point kinetics calculations with the fully coupled thermal fluids and fuel temperature feedback implemented into the RELAP-7 code currently being developed with the MOOSE framework. (authors)

  6. Field Test of Combined Desiccant-Evaporator Cycle Providing Lower Dew Points and Enhanced Dehumidification 

    E-Print Network [OSTI]

    Cromer, C. J.

    2006-01-01

    sometimes referred to as the Cromer cycle. The use of the desiccant provides the AC unit with enhanced moisture removal and a control mechanism whereby the moisture removal of the evaporator coil can be adjusted on the fly down to SHRs below 50... humidity control is added, the industry normally resorts to a “cold coil” strategy, that is, the air is overcooled by the machine to remove the humidity, and then reheated to get it back into the comfort zone. This process is inefficient, adding extra...

  7. Cove Point: A step back into the LNG business

    SciTech Connect (OSTI)

    Katz, M.G.

    1995-12-31

    In 1978, ships began unloading LNG from Algeria at Cove Point`s berthing facilities 1.25 miles offshore. An underwater pipeline transported the LNG to land, where it was stored in the terminal`s four 140-foot-high cryogenic storage tanks. When the LNG was needed, the terminals 10 vaporizers converted it back to gas for send out via an 87-mile-long, 36-inch-diameter pipeline linking the terminal with interstate pipelines of CNG Transmission Corp. and Columbia Gas Transmission Corp. in Loudon County, Va. But Cove Point handled only about 80 shiploads of LNG before shutting down in December 1980, after a dispute about gas prices between US customers and Algeria. The plant sat dormant until the natural gas industry`s deregulation under Order 636. Deregulation resulted in major pipelines abandoning their sales service, and gas distributors and large customers found it was now their obligation to ensure that they had adequate gas supplies during winter peak-demand periods. Enter Cove Point`s peaking capabilities. They had to add the liquefaction unit and recommission other parts of the plant, but the timing was right. Cove Point`s new liquefaction unit is liquefying about 15 million cubic feet (MMcf) of LNG per day of domestic gas. It chills the gas to {minus}260 degrees Fahrenheit to turn it into a liquid for injection and storage in one of the facility`s double-walled insulated tanks. During its initial injection season, which ends Dec. 15, Cove Point is expected to produce enough LNG to almost fill one tank, which can store up to 1.25 billion cubic feet (Bcf). Were the gas not intended for peak-shaving purposes, it would be enough to supply 14,000 homes for a year. As it is, most of the gas will be returned as pipeline gas, during next January and February`s expected cold snaps, to the utilities and users who supplied it. Cove Point`s initial daily sendout capacity is about 400 MMcf.

  8. Guide to Setting Thermal Comfort Criteria and Minimizing Energy Use in Delivering Thermal Comfort

    E-Print Network [OSTI]

    Regnier, Cindy

    2014-01-01

    more sophisticated low energy building systems that make useidentification of low energy building conditioning systems.

  9. The motion of point particles in curved spacetime

    E-Print Network [OSTI]

    Eric Poisson; Adam Pound; Ian Vega

    2011-09-26

    This review is concerned with the motion of a point scalar charge, a point electric charge, and a point mass in a specified background spacetime. In each of the three cases the particle produces a field that behaves as outgoing radiation in the wave zone, and therefore removes energy from the particle. In the near zone the field acts on the particle and gives rise to a self-force that prevents the particle from moving on a geodesic of the background spacetime. The field's action on the particle is difficult to calculate because of its singular nature: the field diverges at the position of the particle. But it is possible to isolate the field's singular part and show that it exerts no force on the particle. What remains after subtraction is a smooth field that is fully responsible for the self-force. The mathematical tools required to derive the equations of motion of a point scalar charge, a point electric charge, and a point mass in a specified background spacetime are developed here from scratch. The review begins with a discussion of the basic theory of bitensors. It then applies the theory to the construction of convenient coordinate systems to chart a neighbourhood of the particle's word line. It continues with a thorough discussion of Green's functions in curved spacetime. The review presents a detailed derivation of each of the three equations of motion. Because the notion of a point mass is problematic in general relativity, the review concludes with an alternative derivation of the equations of motion that applies to a small body of arbitrary internal structure.

  10. MHD Wave Propagation in the Neighbourhood of Two Null Points

    E-Print Network [OSTI]

    J. A. McLaughlin; A. W. Hood

    2007-12-11

    The nature of fast magnetoacoustic and Alfv\\'en waves is investigated in a zero $\\beta$ plasma in the neighbourhood of a pair of two-dimensional null points. This gives an indication of wave propagation in the low $\\beta$ solar corona, for a more complicated magnetic configuration than that looked at by McLaughlin & Hood (2004). It is found that the fast wave is attracted to the null points and that the front of the wave slows down as it approaches the null point pair, with the wave splitting and part of the wave accumulating at one null and the rest at the other. Current density will then accumulate at these points and ohmic dissipation will then extract the energy in the wave at these points. This suggests locations where wave heating will occur in the corona. The Alfv\\'en wave behaves in a different manner in that the wave accumulates along the separatrices. Hence, the current density will accumulate at this part of the topology and this is where wave heating will occur. However, the phenomenon of wave accumulation at a specific place is a feature of both wave types, and illustrates the importance of studying the topology of the corona when considering MHD wave propagation.

  11. Energy dissipation in magnetic null points at kinetic scales

    E-Print Network [OSTI]

    Olshevsky, Vyacheslav; Eriksson, Elin; Markidis, Stefano; Lapenta, Giovanni

    2015-01-01

    We use kinetic particle-in-cell and magnetohydrodynamic simulations supported by an observational dataset to investigate magnetic reconnection in clusters of null points in space plasma. The magnetic configuration under investigation is driven by fast adiabatic flux rope compression that dissipates almost half of the initial magnetic field energy. In this phase powerful currents are excited producing secondary instabilities, and the system is brought into a state of `intermittent turbulence' within a few ion gyro-periods. Reconnection events are distributed all over the simulation domain and energy dissipation is rather volume-filling. Numerous spiral null points interconnected via their spines form null lines embedded into magnetic flux ropes; null point pairs demonstrate the signatures of torsional spine reconnection. However, energy dissipation mainly happens in the shear layers formed by adjacent flux ropes with oppositely directed currents. In these regions radial null pairs are spontaneously emerging an...

  12. Thermal conductivity at a disordered quantum critical point

    E-Print Network [OSTI]

    Hartnoll, Sean A; Santos, Jorge E

    2015-01-01

    Strongly disordered and strongly interacting quantum critical points are difficult to access with conventional field theoretic methods. They are, however, both experimentally important and theoretically interesting. In particular, they are expected to realize universal incoherent transport. Such disordered quantum critical theories have recently been constructed holographically by deforming a CFT by marginally relevant disorder. In this paper we find additional disordered fixed points via relevant disordered deformations of a holographic CFT. Using recently developed methods in holographic transport, we characterize the thermal conductivity in both sets of theories in 1+1 dimensions. The thermal conductivity is found to tend to a constant at low temperatures in one class of fixed points, and to scale as $T^{0.3}$ in the other. Furthermore, in all cases the thermal conductivity exhibits discrete scale invariance, with logarithmic in temperature oscillations superimposed on the low temperature scaling behavior....

  13. Remarks on a fixed point theorem of Caristi 

    E-Print Network [OSTI]

    Egle, David Lee

    1977-01-01

    ) = u and f(v) = v. Then, d(u, v) = d(f(u), f(v)) & o(d(u, f(u) + d(v, f(v))) = 0. 13 Thus, u = v and the fixed point is unique. The convergence of any sequence of i terates follows from the observation following Theorem 1. 3. & The concept of a... of the fixed point follows directly from the uniqueness of the fixed point for fn(u) Let x c X. Let s(x) = max (d(f (x), u) : j = 0, 1, . . . , (n(u)-l)). For m sufficiently large, write m = p n(u) + q, where 0 & q & n(u), p & 0. Then d(f (x, u) = d(f...

  14. Physical Point Simulation in 2+1 Flavor Lattice QCD

    E-Print Network [OSTI]

    PACS-CS Collaboration; :; S. Aoki; K. -I. Ishikawa; N. Ishizuka; T. Izubuchi; D. Kadoh; K. Kanaya; Y. Kuramashi; Y. Namekawa; M. Okawa; Y. Taniguchi; A. Ukawa; N. Ukita; T. Yamazaki; T. Yoshie

    2010-04-04

    We present the results of the physical point simulation in 2+1 flavor lattice QCD with the nonperturbatively $O(a)$-improved Wilson quark action and the Iwasaki gauge action at $\\beta=1.9$ on a $32^3 \\times 64$ lattice. The physical quark masses together with the lattice spacing is determined with $m_\\pi$, $m_K$ and $m_\\Omega$ as physical inputs. There are two key algorithmic ingredients to make possible the direct simulation at the physical point: One is the mass-preconditioned domain-decomposed HMC algorithm to reduce the computational cost. The other is the reweighting technique to adjust the hopping parameters exactly to the physical point. The physics results include the hadron spectrum, the quark masses and the pseudoscalar meson decay constants. The renormalization factors are nonperturbatively evaluated with the Schr{\\"o}dinger functional method. The results are compared with the previous ones obtained by the chiral extrapolation method.

  15. Engineering to Control Noise, Loading, and Optimal Operating Points

    SciTech Connect (OSTI)

    Mitchell R. Swartz

    2000-11-12

    Successful engineering of low-energy nuclear systems requires control of noise, loading, and optimum operating point (OOP) manifolds. The latter result from the biphasic system response of low-energy nuclear reaction (LENR)/cold fusion systems, and their ash production rate, to input electrical power. Knowledge of the optimal operating point manifold can improve the reproducibility and efficacy of these systems in several ways. Improved control of noise, loading, and peak production rates is available through the study, and use, of OOP manifolds. Engineering of systems toward the OOP-manifold drive-point peak may, with inclusion of geometric factors, permit more accurate uniform determinations of the calibrated activity of these materials/systems.

  16. Methods for point source analysis in high energy neutrino telescopes

    E-Print Network [OSTI]

    Jim Braun; Jon Dumm; Francesco De Palma; Chad Finley; Albrecht Karle; Teresa Montaruli

    2008-01-10

    Neutrino telescopes are moving steadily toward the goal of detecting astrophysical neutrinos from the most powerful galactic and extragalactic sources. Here we describe analysis methods to search for high energy point-like neutrino sources using detectors deep in the ice or sea. We simulate an ideal cubic kilometer detector based on real world performance of existing detectors such as AMANDA, IceCube, and ANTARES. An unbinned likelihood ratio method is applied, making use of the point spread function and energy distribution of simulated neutrino signal events to separate them from the background of atmospheric neutrinos produced by cosmic ray showers. The unbinned point source analyses are shown to perform better than binned searches and, depending on the source spectral index, the use of energy information is shown to improve discovery potential by almost a factor of two.

  17. The motion of point particles in curved spacetime

    E-Print Network [OSTI]

    Eric Poisson

    2004-04-01

    This review is concerned with the motion of a point scalar charge, a point electric charge, and a point mass in a specified background spacetime. In each of the three cases the particle produces a field that behaves as outgoing radiation in the wave zone, and therefore removes energy from the particle. In the near zone the field acts on the particle and gives rise to a self-force that prevents the particle from moving on a geodesic of the background spacetime. The field's action on the particle is difficult to calculate because of its singular nature: the field diverges at the position of the particle. But it is possible to isolate the field's singular part and show that it exerts no force on the particle -- its only effect is to contribute to the particle's inertia. What remains after subtraction is a smooth field that is fully responsible for the self-force. Because this field satisfies a homogeneous wave equation, it can be thought of as a free (radiative) field that interacts with the particle; it is this interaction that gives rise to the self-force. The mathematical tools required to derive the equations of motion of a point scalar charge, a point electric charge, and a point mass in a specified background spacetime are developed here from scratch. The review begins with a discussion of the basic theory of bitensors (part I). It then applies the theory to the construction of convenient coordinate systems to chart a neighbourhood of the particle's word line (part II). It continues with a thorough discussion of Green's functions in curved spacetime (part III). The review concludes with a detailed derivation of each of the three equations of motion (part IV).

  18. New algorithms for adaptive optics point-spread function reconstruction

    E-Print Network [OSTI]

    Eric Gendron; Yann Clénet; Thierry Fusco; Gérard Rousset

    2006-06-28

    Context. The knowledge of the point-spread function compensated by adaptive optics is of prime importance in several image restoration techniques such as deconvolution and astrometric/photometric algorithms. Wavefront-related data from the adaptive optics real-time computer can be used to accurately estimate the point-spread function in adaptive optics observations. The only point-spread function reconstruction algorithm implemented on astronomical adaptive optics system makes use of particular functions, named $U\\_{ij}$. These $U\\_{ij}$ functions are derived from the mirror modes, and their number is proportional to the square number of these mirror modes. Aims. We present here two new algorithms for point-spread function reconstruction that aim at suppressing the use of these $U\\_{ij}$ functions to avoid the storage of a large amount of data and to shorten the computation time of this PSF reconstruction. Methods. Both algorithms take advantage of the eigen decomposition of the residual parallel phase covariance matrix. In the first algorithm, the use of a basis in which the latter matrix is diagonal reduces the number of $U\\_{ij}$ functions to the number of mirror modes. In the second algorithm, this eigen decomposition is used to compute phase screens that follow the same statistics as the residual parallel phase covariance matrix, and thus suppress the need for these $U\\_{ij}$ functions. Results. Our algorithms dramatically reduce the number of $U\\_{ij}$ functions to be computed for the point-spread function reconstruction. Adaptive optics simulations show the good accuracy of both algorithms to reconstruct the point-spread function.

  19. Chiral-Scale Perturbation Theory About an Infrared Fixed Point

    E-Print Network [OSTI]

    R. J. Crewther; Lewis C. Tunstall

    2014-01-31

    We review the failure of lowest order chiral $SU(3)_L \\times SU(3)_R$ perturbation theory $\\chi$PT$_3$ to account for amplitudes involving the $f_0(500)$ resonance and $O(m_K)$ extrapolations in momenta. We summarize our proposal to replace $\\chi$PT$_3$ with a new effective theory $\\chi$PT$_\\sigma$ based on a low-energy expansion about an infrared fixed point in 3-flavour QCD. At the fixed point, the quark condensate $\\langle\\bar{q}q\\rangle_\\mathrm{vac}\

  20. An order theoretic approach in fixed point theory

    E-Print Network [OSTI]

    Yaé Ulrich Gaba

    2014-11-07

    In the present article, we show the existence of a coupled fixed point for an order preserving mapping in a preordered left K-complete quasi-pseudometric space using a preorder induced by an appropriate function. We also define the concept of left-weakly related mappings on a preordered space and discuss common coupled fixed points for two and three left-weakly related mappings in the same space. Similar results are given for right-weakly related mappings, the dual notion of left-weakly related mappings.

  1. Measurement of thermodynamic temperature of high temperature fixed points

    SciTech Connect (OSTI)

    Gavrilov, V. R.; Khlevnoy, B. B.; Otryaskin, D. A.; Grigorieva, I. A.; Samoylov, M. L.; Sapritsky, V. I.

    2013-09-11

    The paper is devoted to VNIIOFI's measurements of thermodynamic temperature of the high temperature fixed points Co-C, Pt-C and Re-C within the scope of the international project coordinated by the Consultative Committee for Thermometry working group 5 'Radiation Thermometry'. The melting temperatures of the fixed points were measured by a radiance mode radiation thermometer calibrated against a filter radiometer with known irradiance spectral responsivity via a high temperature black body. This paper describes the facility used for the measurements, the results and estimated uncertainties.

  2. Global Warming 20 Years Later: Tipping Points Near

    E-Print Network [OSTI]

    Hansen, James E.

    Global Warming 20 Years Later: Tipping Points Near Jim Hansen 23 June 2008 National Press Club, and House Select Committee on Energy Independence & Global Warming Washington, DC #12;1988 Testimony Has Big Effects Did Not Emphasize That Global Warming Enhances Both Extremes of Water Cycle - More

  3. Stochastic Analog Circuit Behavior Modeling by Point Estimation Method

    E-Print Network [OSTI]

    He, Lei

    -based method such as APEX with the similar accuracy. ACM Classification Keywords: B.7.2: - Integrated Circuits- Design Aids General Terms: Algorithms, Performance Authors Keywords: Behavior Modeling, Point Estima and man- Permission to make digital or hard copies of all or part of this work for personal or classroom

  4. Material for Point Design (final summary of DIME material)

    SciTech Connect (OSTI)

    Bradley, Paul A.

    2014-02-25

    These slides summarize the motivation of the Defect Induced Mix Experiment (DIME) project, the “point design” of the Polar Direct Drive (PDD) version of the NIF separated reactant capsule, the experimental requirements, technical achievements, and some useful backup material. These slides are intended to provide much basic material in one convenient location and will hopefully be of some use for subsequent experimental projects.

  5. Climate Tipping Points* The Threat to the Planet

    E-Print Network [OSTI]

    Hansen, James E.

    Climate Tipping Points* The Threat to the Planet Jim Hansen 19 February 2008 Illinois Wesleyan/policymakers) 2. A Planetary Emergency - Climate Inertia Pipeline Effect - Positive Feedbacks Predominate 3. Good. Great Inertia of Systems - Climate: >½ Warming Still `in Pipeline' - Energy Infrastructure: Decades

  6. Markov Properties for Point Processes on the Plane

    E-Print Network [OSTI]

    Nualart, David; Merzbach, Ely

    1990-02-02

    It is proved that for a wide class of point processes indexed by the positive quadrant of the plane, and for a class of compact sets in this quadrant, the germ ?-field is equal to the ?-field generated by the values of the process on the set...

  7. Quantum Chaos for point scatterers on flat tori

    E-Print Network [OSTI]

    Henrik Ueberschaer

    2013-04-23

    This survey article deals with a delta potential - also known as a point scatterer - on flat 2D and 3D tori. We introduce the main conjectures regarding the spectral and wave function statistics of this model in the so- called weak and strong coupling regimes. We report on recent progress as well as a number of open problems in this field.

  8. Fermi point in graphene as a monopole in momentum space

    E-Print Network [OSTI]

    M . A. Zubkov

    2011-12-15

    We consider the effective field theory of graphene monolayer with the Coulomb interaction between fermions taken into account. The gauge field in momentum space is introduced. The position of the Fermi point coincides with the position of the corresponding monopole. The procedure of extracting such monopoles during lattice simulations is suggested.

  9. Comparing Genomes with Duplications: A Computational Complexity Point of View

    E-Print Network [OSTI]

    Chauve, Cedric

    Comparing Genomes with Duplications: A Computational Complexity Point of View Guillaume Blin are interested in the computational complexity of computing (dis)similarity measures between two genomes when they contain duplicated genes or genomic markers, a problem that happens frequently when comparing whole

  10. Fast Quadrupling of a Point on Elliptic Curves Cryptography

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Fast Quadrupling of a Point on Elliptic Curves Cryptography Duc-Phong Le Temasek Laboratories of Weierstrass form. In this paper we extend their method and present a fast algorithm for computing 4P with only algorithm gains better results. Keywords: Elliptic curve cryptography, fast arithmetic, affine co- ordinates

  11. Fast Multipole Representation of Diffusion Curves and Points Timothy Sun

    E-Print Network [OSTI]

    Columbia University

    Fast Multipole Representation of Diffusion Curves and Points Timothy Sun Papoj Thamjaroenporn performed on the fast multipole representation. Abstract We propose a new algorithm for random-access evaluation of diffu- sion curve images (DCIs) using the fast multipole method. Unlike all previous methods

  12. An Extreme Point Tabu Search Method for Data Mining

    E-Print Network [OSTI]

    Mitchell, John E.

    An Extreme Point Tabu Search Method for Data Mining Kristin P. Bennett \\Lambda Jennifer A. Blue error of all the decisions in the tree concurrently. Decision trees are ideal for data­mining because optimize existing decision trees. This capability can be used in data mining for avoiding overfitting

  13. TWIN BUILDING LATTICES DO NOT HAVE ASYMPTOTIC CUT-POINTS

    E-Print Network [OSTI]

    Caprace, Pierre-Emmanuel

    TWIN BUILDING LATTICES DO NOT HAVE ASYMPTOTIC CUT-POINTS PIERRE-EMMANUEL CAPRACE*, FRANÇOIS DAHMANI**, AND VINCENT GUIRARDEL** Abstract. We show that twin building lattices have linear divergence, which implies of asymptotic cones of twin building lattices. Theorem 1. The asymptotic cones of a twin building lattice do

  14. SIAM Conference on Gemetric Design, 2003 Point Cloud Denoising

    E-Print Network [OSTI]

    de Figueiredo, Luiz Henrique

    1 SIAM Conference on Gemetric Design, 2003 Point Cloud Denoising Luiz Velho Boris Mederos Madrazo Luiz Henrique de Figueiredo IMPA ­ Instituto de Matemática Pura e Aplicada Luiz Velho © SIAM Conference · Smoothing Operator rr ntrrQ +=)( })(|{ xxQx = )(' xQx r n t Luiz Velho © SIAM Conference on Gemetric Design

  15. Spring 2011 | PCI Journal88 Editor's quick points

    E-Print Network [OSTI]

    Spring 2011 | PCI Journal88 Editor's quick points n This article is the first part of a two to provide bearing for the deck sections, so the L-shaped slen- #12;89PCI Journal | Spring 2011 to maintain is outlined in the sixth edition of the PCI Design Handbook: Precast and Prestressed Concrete.7 The PCI Design

  16. Fall 2011 | PCI Journal106 Editor's quick points

    E-Print Network [OSTI]

    Fall 2011 | PCI Journal106 Editor's quick points This paper summarizes the results in the sixth edition of the PCI Design Handbook: Precast and Prestressed Con- crete6 often results in conservative, heavy reinforcement #12;107PCI Journal | Fall 2011 results1 to study the various parameters

  17. Outline Overview Design Principles Key Points Design Principles

    E-Print Network [OSTI]

    Almulhem, Ahmad

    Engineering Department, KFUPM Spring 2008 Ahmad Almulhem - Network Security Engineering - 2008 1 / 12 #12-Safe Defaults Economy of Mechanism Complete Mediation Open Design Separation of Privilege Least Common Mechanism Psychological Acceptability 3 Key Points Ahmad Almulhem - Network Security Engineering - 2008 2 / 12 #12;Outline

  18. Schur Complements on Hilbert Spaces and Saddle Point Systems

    E-Print Network [OSTI]

    Bacuta, Constantin

    constants. In the light of the new spectral results for the Schur complements, we review the classical, multilevel methods, adaptive methods 1 Introduction In the present literature, the abstract formulation to adaptive algorithms for solving saddle point systems, see [3,4,12]. The main advantage of the new

  19. Dependency Calculus Reasoning in a General Point Relation Algebra

    E-Print Network [OSTI]

    Nebel, Bernhard

    of flowing water, we can draw conclusions about pollution at other points (cf. Fig. 1). If pollution is found- pects and complexity results from one algebra to another. If we observe pollution in an ecosystem at D, F is polluted as well. It B C E D F A Figure 1: A pipe network. Flow occurs along the "pipes

  20. Type-Based Termination, Inflationary Fixed-Points, and

    E-Print Network [OSTI]

    Abel, Andreas

    Type-Based Termination, Inflationary Fixed-Points, and Mixed Inductive-Coinductive Types Andreas Science (FICS 2012) ETAPS 2012, Tallinn, Estonia 24 March 2012 Andreas Abel (LMU) Type-Based Termination AIM XV 1 / 1 #12;Introduction Aspects of Termination What the talk is about: foundational approach

  1. Monochromatic and random wave breaking at blocking points

    E-Print Network [OSTI]

    Kirby, James T.

    ; published 4 July 2002. [1] In this paper we study the energy dissipation due to current-limited waveMonochromatic and random wave breaking at blocking points Arun Chawla Center for Coastal and Land and Technology, Portland, Oregon, USA James T. Kirby Center for Applied Coastal Research, University of Delaware

  2. Jet schemes of rational double point singularities Hussein MOURTADA

    E-Print Network [OSTI]

    Jet schemes of rational double point singularities Hussein MOURTADA September 30, 2012 Abstract We prove that for m N, m big enough, the number of irreducble components of the schemes of m-jets centered of the jet schemes of an E6 singularity to its "minimal" embedded resolutions of singularities. 1

  3. Non-crossing Matchings of Points with Geometric Objects1

    E-Print Network [OSTI]

    Demaine, Erik

    ´e Libre de Bruxelles, CP212, Bld. du Triomphe, 1050 Brussels, Belgium. b MIT Computer Science the algorithmic problem of deter- mining whether a non-crossing matching exists between a given point-object pairPoSe: Fonds National de la Recherche Scientifique (F.R.S.-FNRS) - EUROGIGA NR 13604, for Belgium, and MICINN

  4. The Point in Polygon Problem for Arbitrary Polygons

    E-Print Network [OSTI]

    Hormann, Kai

    and the winding number, the former lead- ing to ray-crossing, the latter to angle summation algorithms. First we version of an algorithm for determining the winding number. Then we examine how to accelerate in literature and discuss the results. Keywords: polygons, point containment, winding number, integer algorithms

  5. Ubiquitous Computing at Point of Care in Hospitals

    E-Print Network [OSTI]

    Ubiquitous Computing at Point of Care in Hospitals: A User-Centered Approach Thesis for the degree, the dissemination of ubiquitous computing has been slow. Research on this type of technology has in many ways been, there is little design guidance that can help technology developers apply ubiquitous computing designs

  6. Towards the physical point hadronic vacuum polarisation from Moebius DWF

    E-Print Network [OSTI]

    Marinkovic, Marina; Del Debbio, Luigi; Juettner, Andreas; Maltman, Kim; Portelli, Antonin

    2015-01-01

    We present steps towards the computation of the leading-order hadronic contribution to the muon anomalous magnetic moment on RBC/UKQCD physical point DWF ensembles. We discuss several methods for controlling and reducing uncertainties associated to the determination of the HVP form factor.

  7. Towards the physical point hadronic vacuum polarisation from Moebius DWF

    E-Print Network [OSTI]

    Marina Marinkovic; Peter Boyle; Luigi Del Debbio; Andreas Juettner; Kim Maltman; Antonin Portelli

    2015-02-18

    We present steps towards the computation of the leading-order hadronic contribution to the muon anomalous magnetic moment on RBC/UKQCD physical point DWF ensembles. We discuss several methods for controlling and reducing uncertainties associated to the determination of the HVP form factor.

  8. Contemporary Mathematics Derived Canonical Algebras as One-Point Extensions

    E-Print Network [OSTI]

    Barot, Michael

    Contemporary Mathematics Derived Canonical Algebras as One-Point Extensions Michael Barot-dimensional algebra by a -module M is derived canonical, i.e. derived equivalent to a canonical algebra. We give the conditions are even sufficient. As a further result we obtain that, if is derived canonical then the one

  9. Wide-angle point-to-point x-ray imaging with almost arbitrarily large angles of incidence

    SciTech Connect (OSTI)

    Bitter, M.; Hill, K. W.; Scott, S.; Feder, R.; Ko, Jinseok; Ince-Cushman, A.; Rice, J. E.

    2008-10-15

    The paper describes a new scheme for wide-angle point-to-point x-ray imaging with almost arbitrarily large angles of incidence by a matched pair of spherically bent crystals to eliminate the astigmatism, which is a well-known imaging error of spherical mirrors. In addition to x rays, the scheme should be applicable to a very broad spectrum of the electromagnetic radiation, including microwaves, infrared and visible light, as well as UV and extreme UV radiation, if the crystals are replaced with appropriate spherical reflectors. The scheme may also be applicable to the imaging with ultrasound.

  10. Automatic Identification of Best Entry Points for Focussed Structured Document Retrieval

    E-Print Network [OSTI]

    Lalmas, Mounia

    Automatic Identification of Best Entry Points for Focussed Structured Document Retrieval Mounia@dcs.qmul.ac.uk ABSTRACT Focussed structured document retrieval employs the concept of best entry points (BEPs), which, Best entry points, Best entry point algorithms, Automatic identification of best entry points. 1

  11. Geologic control of natural marine hydrocarbon seep emissions, Coal Oil Point seep field, California

    E-Print Network [OSTI]

    Leifer, Ira; Kamerling, Marc J.; Luyendyk, Bruce P.; Wilson, Douglas S.

    2010-01-01

    Mar Lett (2010) 30:331–338 Fig. 3 Coal Oil Point seep field,hydrocarbon seeps near Coal Oil Point, California. Marhydrocarbon seep emissions, Coal Oil Point seep field,

  12. Formation of seep bubble plumes in the Coal Oil Point seep field

    E-Print Network [OSTI]

    Leifer, Ira; Culling, Daniel

    2010-01-01

    hydrocarbon seeps near Coal Oil Point, California. Marof seep bubble plumes in the Coal Oil Point seep field Irameasurement system in the Coal Oil Point seep field in the

  13. Model reduction for active control design using multiple-point Arnoldi methods

    E-Print Network [OSTI]

    Lassaux, G.

    A multiple-point Arnoldi method is derived for model reduction of computational fluid dynamic systems. By choosing the number of frequency interpolation points and the number of Arnoldi vectors at each frequency point, the ...

  14. Parity-time symmetry broken by point-group symmetry

    SciTech Connect (OSTI)

    Fernández, Francisco M. Garcia, Javier

    2014-04-15

    We discuss a parity-time (PT) symmetric Hamiltonian with complex eigenvalues. It is based on the dimensionless Schrödinger equation for a particle in a square box with the PT-symmetric potential V(x, y) = iaxy. Perturbation theory clearly shows that some of the eigenvalues are complex for sufficiently small values of |a|. Point-group symmetry proves useful to guess if some of the eigenvalues may already be complex for all values of the coupling constant. We confirm those conclusions by means of an accurate numerical calculation based on the diagonalization method. On the other hand, the Schrödinger equation with the potential V(x, y) = iaxy{sup 2} exhibits real eigenvalues for sufficiently small values of |a|. Point group symmetry suggests that PT-symmetry may be broken in the former case and unbroken in the latter one.

  15. Method of and apparatus for determining deposition-point temperature

    DOE Patents [OSTI]

    Mansure, A.J.; Spates, J.J.; Martin, S.J.

    1998-10-27

    Acoustic-wave sensor apparatus and method are disclosed for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated. 5 figs.

  16. Method of and apparatus for determining deposition-point temperature

    DOE Patents [OSTI]

    Mansure, Arthur J. (Albuquerque, NM); Spates, James J. (Albuquerque, NM); Martin, Stephen J. (Albuquerque, NM)

    1998-01-01

    Acoustic-wave sensor apparatus and method for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated.

  17. Filtering with Marked Point Process Observations via Poisson Chaos Expansion

    SciTech Connect (OSTI)

    Sun Wei; Zeng Yong; Zhang Shu

    2013-06-15

    We study a general filtering problem with marked point process observations. The motivation comes from modeling financial ultra-high frequency data. First, we rigorously derive the unnormalized filtering equation with marked point process observations under mild assumptions, especially relaxing the bounded condition of stochastic intensity. Then, we derive the Poisson chaos expansion for the unnormalized filter. Based on the chaos expansion, we establish the uniqueness of solutions of the unnormalized filtering equation. Moreover, we derive the Poisson chaos expansion for the unnormalized filter density under additional conditions. To explore the computational advantage, we further construct a new consistent recursive numerical scheme based on the truncation of the chaos density expansion for a simple case. The new algorithm divides the computations into those containing solely system coefficients and those including the observations, and assign the former off-line.

  18. Metamaterials, Point Interactions, Phase-Conjugation, and PT-Symmetry

    E-Print Network [OSTI]

    Ali Mostafazadeh

    2015-08-07

    We express the boundary conditions for TE and TM waves at the interfaces of an infinite planar slab of homogeneous metamaterial as certain point interactions and use them to compute the transfer matrix of the system. This allows us to demonstrate the omnidirectional reflectionlessness of Veselago's slab for waves of arbitrary wavelength, reveal the translational and reflection symmetry of this slab, explore the laser threshold condition and coherent perfect absorption for active negative-index metamaterials, introduce a point interaction modeling phase-conjugation, determine the corresponding antilinear transfer matrix, and offer a simple proof of the equivalence of Veselago's slab with a pair of parallel phase-conjugating plates. We also study the connection between certain optical setups involving metamaterials and a class of PT-symmetric quantum systems defined on wedge-shape contours in the complex plane. This provides a physical interpretation for the latter.

  19. Metamaterials, Point Interactions, Phase-Conjugation, and PT-Symmetry

    E-Print Network [OSTI]

    Mostafazadeh, Ali

    2015-01-01

    We express the boundary conditions for TE and TM waves at the interfaces of an infinite planar slab of homogeneous metamaterial as certain point interactions and use them to compute the transfer matrix of the system. This allows us to demonstrate the omnidirectional reflectionlessness of Veselago's slab for waves of arbitrary wavelength, reveal the translational and reflection symmetry of this slab, explore the laser threshold condition and coherent perfect absorption for active negative-index metamaterials, introduce a point interaction modeling phase-conjugation, determine the corresponding antilinear transfer matrix, and offer a simple proof of the equivalence of Veselago's slab with a pair of parallel phase-conjugating plates. We also study the connection between certain optical setups involving metamaterials and a class of PT-symmetric quantum systems defined on wedge-shape contours in the complex plane. This provides a physical interpretation for the latter.

  20. Fixed points, stable manifolds, weather regimes, and their predictability

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

    Deremble, Bruno; D'Andrea, Fabio; Ghil, Michael

    2009-10-27

    In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple ''weather regimes.'' To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, ''bred vectors'' and singular vectors. These results are then verified in the framework of ensemblemore »forecasts issued from clouds (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.« less

  1. Seven-point finite difference simulation of waterfloods 

    E-Print Network [OSTI]

    Wong, Steven Anthony

    1985-01-01

    . For an arbitrary phase m, the resulting dif- f'erential equation in two dimensions is 3 8 k k 3e 3 8 k k 3e Five-Point Diff'erence Scheme To get the finite differ ence equations for the standard five-point differ ence scheme, we define the following terms... for the mth phase. (kh). (kh). (2) (kh) (kh) 1 T = 0. 01266(ax) s (kh) (Ay). + (kh), (dy) j+1 J j J+I (3) (kh). (kh). ~1 e (kh). (dx) + (kh ). (Ax). (4) (kh). (kh) (kh) (Ax). + (kh) (Ax) i-1 i I i-1 (5) A mn m rm um~n n (6) A (B k /u ) WT (7) A...

  2. Eulerian BAO Reconstructions and N-Point Statistics

    E-Print Network [OSTI]

    Schmittfull, Marcel; Beutler, Florian; Sherwin, Blake; Chu, Man Yat

    2015-01-01

    As galaxy surveys begin to measure the imprint of baryonic acoustic oscillations (BAO) on large-scale structure at the sub-percent level, reconstruction techniques that reduce the contamination from nonlinear clustering become increasingly important. Inverting the nonlinear continuity equation, we propose an Eulerian growth-shift reconstruction algorithm that does not require the displacement of any objects, which is needed for the standard Lagrangian BAO reconstruction algorithm. In our simulations, the algorithm yields 95% of the BAO signal-to-noise obtained from standard reconstruction. The reconstructed power spectrum is obtained by adding specific simple 3- and 4-point statistics to the pre-reconstruction power spectrum, making it very transparent how additional BAO information from higher-point statistics is included in the power spectrum through the reconstruction process. Analytical models of the reconstructed density for the two algorithms agree at second order. Based on similar modeling efforts, we ...

  3. Microscopic return point memory in Co/Pd multilayer films

    SciTech Connect (OSTI)

    Seu, K.A.; Su, R.; Roy, S.; Parks, D.; Shipton, E.; Fullerton, E.E.; Kevan, S.D.

    2009-10-01

    We report soft x-ray speckle metrology measurements of microscopic return point and complementary point memory in Co/Pd magnetic films having perpendicular anisotropy. We observe that the domains assemble into a common labyrinth phase with a period that varies by nearly a factor of two between initial reversal and fields near saturation. Unlike previous studies of similar systems, the ability of the film to reproduce its domain structure after magnetic cycling through saturation varies from loop to loop, from position to position on the sample, and with the part of the speckle pattern used in the metrology measurements. We report the distribution of memory as a function of field and discuss these results in terms of the reversal process.

  4. Average Interpolating Wavelets on Point Clouds and Graphs

    E-Print Network [OSTI]

    Rustamov, Raif M

    2011-01-01

    We introduce a new wavelet transform suitable for analyzing functions on point clouds and graphs. Our construction is based on a generalization of the average interpolating refinement scheme of Donoho. The most important ingredient of the original scheme that needs to be altered is the choice of the interpolant. Here, we define the interpolant as the minimizer of a smoothness functional, namely a generalization of the Laplacian energy, subject to the averaging constraints. In the continuous setting, we derive a formula for the optimal solution in terms of the poly-harmonic Green's function. The form of this solution is used to motivate our construction in the setting of graphs and point clouds. We highlight the empirical convergence of our refinement scheme and the potential applications of the resulting wavelet transform through experiments on a number of data stets.

  5. Shaft Excavation in Frozen Ground at Point 5

    E-Print Network [OSTI]

    Osborne, J

    2000-01-01

    Construction work on the 112 MCHF civil engineering contract started at Point 5 in August 1998. The new surface buildings and underground structures are necessary to accommodate the CMS detector for the LHC Project. The principal underground works consist of two new shafts, two parallel caverns separated by a supporting pillar, and a number of small connection tunnels and service galleries. The two shafts are to be sunk through approximately 50 m of water-bearing moraine to the underlying molasse rock. From a number of possible construction methods, ground freezing of the moraine was considered to be most appropriate. The ground freezing is used to control the groundwater and to support temporarily the moraine during excavation and lining of the shafts. The aim of this paper is to present the ground-freezing technique and to discuss the advantages and disadvantages of the system in the light of its first few months of running on the Point 5 site.

  6. Fixed points, stable manifolds, weather regimes, and their predictability

    SciTech Connect (OSTI)

    Deremble, Bruno [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); D'Andrea, Fabio [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Inst. of Geophysics and Planetary Physics

    2009-10-27

    In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple ''weather regimes.'' To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, ''bred vectors'' and singular vectors. These results are then verified in the framework of ensemble forecasts issued from clouds (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.

  7. Fixed points, stable manifolds, weather regimes, and their predictability

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

    Deremble, Bruno [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); D'Andrea, Fabio [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Inst. of Geophysics and Planetary Physics

    2009-01-01

    In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple ''weather regimes.'' To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, ''bred vectors'' and singular vectors. These results are then verified in the framework of ensemble forecasts issued from clouds (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.

  8. Point Defect Dynamics in Two-Dimensional Colloidal Crystals

    E-Print Network [OSTI]

    A. Libal; C. Reichhardt; C. J. Olson Reichhardt

    2006-12-16

    We study the topological configurations and dynamics of individual point defect vacancies and interstitials in a two-dimensional colloidal crystal. Our Brownian dynamics simulations show that the diffusion mechanism for vacancy defects occurs in two phases. The defect can glide along the crystal lattice directions, and it can rotate during an excited topological transition configuration to assume a different direction for the next period of gliding. The results for the vacancy defects are in good agreement with recent experiments. For the interstitial point defects, which were not studied in the experiments, we find several of the same modes of motion as in the vacancy defect case along with two additional diffusion pathways. The interstitial defects are more mobile than the vacancy defects due to the more two-dimensional nature of the diffusion of the interstitial defects.

  9. Relevance of complex branch points for partial wave analysis

    SciTech Connect (OSTI)

    Ceci, S.; Svarc, A.; Doering, M.; Hanhart, C.; Krewald, S.; Meissner, U.-G.

    2011-07-15

    A central issue in hadron spectroscopy is to deduce--and interpret--resonance parameters, namely, pole positions and residues, from experimental data, for those are the quantities to be compared to lattice QCD or model calculations. However, not every structure in the observables derives from a resonance pole: the origin might as well be branch points, either located on the real axis (when a new channel composed of stable particles opens) or in the complex plane (when at least one of the intermediate particles is unstable). In this paper we demonstrate first the existence of such branch points in the complex plane and then show on the example of the {pi}N P{sub 11} partial wave that it is not possible to distinguish the structures induced by the latter from a true pole signal based on elastic data alone.

  10. Process for structural geologic analysis of topography and point data

    DOE Patents [OSTI]

    Eliason, Jay R. (Richland, WA); Eliason, Valerie L. C. (Richland, WA)

    1987-01-01

    A quantitative method of geologic structural analysis of digital terrain data is described for implementation on a computer. Assuming selected valley segments are controlled by the underlying geologic structure, topographic lows in the terrain data, defining valley bottoms, are detected, filtered and accumulated into a series line segments defining contiguous valleys. The line segments are then vectorized to produce vector segments, defining valley segments, which may be indicative of the underlying geologic structure. Coplanar analysis is performed on vector segment pairs to determine which vectors produce planes which represent underlying geologic structure. Point data such as fracture phenomena which can be related to fracture planes in 3-dimensional space can be analyzed to define common plane orientation and locations. The vectors, points, and planes are displayed in various formats for interpretation.

  11. West Point Treatment Plant Biomass Facility | 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| Open Energy Information Serbia-EnhancingEtGeorgia: Energy Resources JumpChicago,Islip,Point Treatment Plant Biomass

  12. West Point, Kentucky: 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| Open Energy Information Serbia-EnhancingEtGeorgia: Energy Resources JumpChicago,Islip,Point Treatment Plant

  13. Three Points, Arizona: 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| Open Energy Information Serbia-EnhancingEt Al., 2013) |InformationThe2009)Thonotosassa,Thornwood,Lakes,Points,

  14. Reverse Integration for Computing Stationary Points of Unstable Stiff Systems

    E-Print Network [OSTI]

    C. W. Gear; Ioannis Kevrekidis

    2003-02-24

    Using existing, forward-in-time integration schemes, we demonstrate that it is possible to compute unstable, saddle-type fixed points of stiff systems of ODEs when the stable compenents are fast (i.e., rapidly damped) while the unstable components are slow. The approach has implications for the reverse (backward in time) integration of such stiff systems, and for the coarse reverse integration of microscopic/stochastic simulations.

  15. 1. Aim of the Code of Practice 2. Key points

    E-Print Network [OSTI]

    Roelleke, Thomas

    family leave provisions 1August 2011 #12;1 Aim of the Code of Practice The aim is to: 1 promote good1. Aim of the Code of Practice 2. Key points 3. Maternity leave and pay 4. Ante-natal leave 5. Compassionate leave for family and other reasons 1 1 3 4 5 7 8 9 10 HR Code of Practice 14. Maternity and other

  16. The Oblique Basis Method from an Engineering Point of View

    E-Print Network [OSTI]

    V. G. Gueorguiev

    2012-10-16

    The oblique basis method is reviewed from engineering point of view related to vibration and control theory. Examples are used to demonstrate and relate the oblique basis in nuclear physics to the equivalent mathematical problems in vibration theory. The mathematical techniques, such as principal coordinates and root locus, used by vibration and control theory engineers are shown to be relevant to the Richardson - Gaudin pairing-like problems in nuclear physics.

  17. Single View Point Omnidirectional Camera Calibration from Planar Grids

    E-Print Network [OSTI]

    Mei, Christopher

    to the approach comes from the precision reported, that is well adapted to outlier rejection (RANSAC) but less four F R2,T2 R1,T1 Rw,Tw Grid telecentric camera lens Mirror : a,b (or p) principal point, distortion distortion Camera skewness lens Fig. 1. Complete calibration pa- rameters F Grid Rw,Tw Mirror : a,b (or p

  18. Point Vortices: Finding Periodic Orbits and their Topological Classification

    E-Print Network [OSTI]

    Spencer A. Smith

    2015-10-22

    The motion of point vortices constitutes an especially simple class of solutions to Euler's equation for two dimensional, inviscid, incompressible, and irrotational fluids. In addition to their intrinsic mathematical importance, these solutions are also physically relevant. Rotating superfluid helium can support rectilinear quantized line vortices, which in certain regimes are accurately modeled by point vortices. Depending on the number of vortices, it is possible to have either regular integrable motion or chaotic motion. Thus, the point vortex model is one of the simplest and most tractable fluid models which exhibits some of the attributes of weak turbulence. The primary aim of this work is to find and classify periodic orbits, a special class of solutions to the point vortex problem. To achieve this goal, we introduce a number of algorithms: Lie transforms which ensure that the equations of motion are accurately solved; constrained optimization which reduces close return orbits to true periodic orbits; object-oriented representations of the braid group which allow for the topological comparison of periodic orbits. By applying these ideas, we accumulate a large data set of periodic orbits and their associated attributes. To render this set tractable, we introduce a topological classification scheme based on a natural decomposition of mapping classes. Finally, we consider some of the intriguing patterns which emerge in the distribution of periodic orbits in phase space. Perhaps the most enduring theme which arises from this investigation is the interplay between topology and geometry. The topological properties of a periodic orbit will often force it to have certain geometric properties.

  19. Zero point energy on extra dimension: Noncommutative Torus

    E-Print Network [OSTI]

    S. Fabi; B. Harms; G. Karatheodoris

    2007-04-25

    In this paper we calculate the zero point energy density experienced by observers on M^4 due to a massless scalar field defined throughout M^4 x T^2_F, where T^2_F are fuzzy extra dimensions. Using the Green's function approach we calculate the energy density for the commutative torus and the fuzzy torus. We calculate then the energy density for the fuzzy torus using the Hamiltonian approach. Agreement is shown between Green's function and Hamiltonian approaches.

  20. Rock Point, Arizona: 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 onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, NewMichigan: Energy Resources Jump to:RockPoint, Arizona: Energy

  1. Lowell Point, Alaska: 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:Montezuma, Arizona:Oregon:Lowell Point, Alaska: Energy Resources Jump to: navigation,

  2. Church Point, Louisiana: 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:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIRChurch Point, Louisiana: Energy Resources Jump to: navigation,

  3. Three Point Functions in the Large N=4 Holography

    E-Print Network [OSTI]

    Changhyun Ahn; Hyunsu Kim

    2015-06-01

    The 16 higher spin currents with spins (1, 3/2, 3/2, 2), (3/2, 2, 2, 5/2), (3/2, 2, 2, 5/2) and (2, 5/2, 5/2, 3) in an extension of large N=4 `nonlinear' superconformal algebra in two dimensions were obtained previously. By analyzing the zero mode eigenvalue equations carefully, the three point functions of bosonic (higher spin) currents with two scalars for any finite N (where SU(N+2) is the group of coset) and k (the level of spin-1 Kac Moody current) are obtained. Furthermore, the 16 higher spin currents with above spin contents in an extension of large N=4 `linear' superconformal algebra are obtained for generic N and k implicitly. The corresponding three point functions are also determined. Under the large N 't Hooft limit, the two corresponding three point functions in the nonlinear and linear versions coincide with each other although they are completely different for finite N and k.

  4. Three Point Functions in the N=4 Orthogonal Coset Theory

    E-Print Network [OSTI]

    Changhyun Ahn; Hyunsu Kim; Jinsub Paeng

    2015-10-12

    We construct the lowest higher spin-2 current in terms of the spin-1 and the spin-1/2 currents living in the orthogonal SO(N+4)/[SO(N) x SO(4)] Wolf space coset theory for general N. The remaining fifteen higher spin currents are determined. We obtain the three-point functions of bosonic (higher) spin currents with two scalars for finite N and k (the level of the spin-1 current). By multiplying SU(2) x U(1) into the above Wolf space coset theory, the other fifteen higher spin currents together with the above lowest higher spin-2 current are realized in the extension of the large N=4 linear superconformal algebra. Similarly, the three-point functions of bosonic (higher) spin currents with two scalars for finite N and k are obtained. Under the large N 't Hooft limit, the two types of three-point functions in the nonlinear and linear versions coincide as in the unitary coset theory found previously.

  5. Three Point Functions in the N=4 Orthogonal Coset Theory

    E-Print Network [OSTI]

    Ahn, Changhyun; Paeng, Jinsub

    2015-01-01

    We construct the lowest higher spin-2 current in terms of the spin-1 and the spin-1/2 currents living in the orthogonal SO(N+4)/[SO(N) x SO(4)] Wolf space coset theory for general N. The remaining fifteen higher spin currents are determined. We obtain the three-point functions of bosonic (higher) spin currents with two scalars for finite N and k (the level of the spin-1 current). By multiplying SU(2) x U(1) into the above Wolf space coset theory, the other fifteen higher spin currents together with the above lowest higher spin-2 current are realized in the extension of the large N=4 linear superconformal algebra. Similarly, the three-point functions of bosonic (higher) spin currents with two scalars for finite N and k are obtained. Under the large N 't Hooft limit, the two types of three-point functions in the nonlinear and linear versions coincide as in the unitary coset theory found previously.

  6. On the Scission Point Configuration of Fisioning Nuclei

    E-Print Network [OSTI]

    Ivanyuk, Fedir

    2013-01-01

    The scission of a nucleus into two fragments is at present the least understood part of the fission process, though the most important for the formation of the observables. To investigate the potential energy landscape at the largest possible deformations, i.e. at the scission point (line, hypersurface), the Strutinsky's optimal shape approach is applied. For the accurate description of the mass-asymmetric nuclear shape at the scission point, it turned out necessary to construct an interpolation between the two sets of constraints for the elongation and mass asymmetry which are applied successfully at small deformations (quadrupole and octupole moments) and for separated fragments (the distance between the centers of mass and the difference of fragments masses). In addition, a constraint on the neck radius was added, what makes it possible to introduce the so called super-short and super-long shapes at the scission point and to consider the contributions to the observable data from different fission modes. Th...

  7. On the Scission Point Configuration of Fisioning Nuclei

    E-Print Network [OSTI]

    Fedir Ivanyuk

    2013-03-29

    The scission of a nucleus into two fragments is at present the least understood part of the fission process, though the most important for the formation of the observables. To investigate the potential energy landscape at the largest possible deformations, i.e. at the scission point (line, hypersurface), the Strutinsky's optimal shape approach is applied. For the accurate description of the mass-asymmetric nuclear shape at the scission point, it turned out necessary to construct an interpolation between the two sets of constraints for the elongation and mass asymmetry which are applied successfully at small deformations (quadrupole and octupole moments) and for separated fragments (the distance between the centers of mass and the difference of fragments masses). In addition, a constraint on the neck radius was added, what makes it possible to introduce the so called super-short and super-long shapes at the scission point and to consider the contributions to the observable data from different fission modes. The calculated results for the mass distribution of the fission fragment and the Coulomb repulsion energy "immediately after scission" are in a reasonable agreement with experimental data.

  8. Photovoltaics R&D: At the Tipping Point

    SciTech Connect (OSTI)

    Kazmerski, L. L.

    2005-01-01

    '' . . . with robust investments in research and market development, the picture changes dramatically.'' Thus, the realigned U.S. Photovoltaic Industry Roadmap highlights R&D as critical to the tipping point that will make solar photovoltaics (PV) significant in the U.S. energy portfolio--part of a well-designed plan that would bring ''2034 expectations'' to reality by 2020. Technology improvement and introduction depend on key, focused, and pertinent research contributions that range from the most fundamental through the applied. In this paper, we underscore the successes and relevance of our current systems-driven PV R&D programs, which are built on integrated capabilities. These capabilities span atomic-level characterization, nanotechnology, new materials design, interface and device engineering, theoretical guidance and modeling, processing, measurements and analysis, and process integration. This presentation identifies and provides examples of critical research tipping points needed to foster now and near technologies (primarily crystalline silicon and thin films) and to introduce coming generations of solar PV that provide options to push us to the next performance levels (devices with ultra-high efficiencies and with ultra-low cost). The serious importance of science and creativity to U.S. PV technology ownership--and the increased focus to accelerate the time from laboratory discovery to industry adoption--are emphasized at this ''tipping point'' for solar PV.

  9. Exceptional points for chiral Majorana fermions in arbitrary dimensions

    E-Print Network [OSTI]

    Ipsita Mandal

    2015-07-10

    Certain real parameters of a Hamiltonian, when continued to complex values, can give rise to singular points called exceptional points ($EP$'s), where two or more eigenvalues coincide and the complexified Hamiltonian becomes non-diagonalizable. We show that for a generic $d$-dimensional topological superconductor/superfluid with a chiral symmetry, one can find $EP$'s associated with the chiral zero energy Majorana fermions bound to a topological defect/edge. Exploiting the chiral symmetry, we propose a formula for counting the number ($n$) of such chiral zero modes. We also establish the connection of these solutions to the Majorana fermion wavefunctions in the position space. The imaginary parts of these momenta are related to the exponential decay of the wavefunctions localized at the defect/edge, and hence their change of sign at a topological phase transition point signals the appearance or disappearance of a chiral Majorana zero mode. Our analysis thus explains why topological invariants like the winding number, defined for the corresponding Hamiltonian in the momentum space for a defectless system with periodic boundary conditions, captures the number of admissible Majorana fermion solutions for the position space Hamiltonian with defect(s). Finally, we conclude that $EP$'s cannot be associated with the Majorana fermion wavefunctions for systems with no chiral symmetry, though one can use our formula for counting $n$, using complex $k$ solutions where the determinant of the corresponding BdG Hamiltonian vanishes.

  10. AVTA: ChargePoint AC Level 2 Charging System Testing Results...

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

    ChargePoint AC Level 2 Charging System Testing Results AVTA: ChargePoint AC Level 2 Charging System Testing Results The Vehicle Technologies Office's Advanced Vehicle Testing...

  11. Microsoft PowerPoint - 10 Lee LCLS Lessons Learned PM Workshop...

    Office of Environmental Management (EM)

    10 Lee LCLS Lessons Learned PM Workshop Final Compatibility Mode Microsoft PowerPoint - 10 Lee LCLS Lessons Learned PM Workshop Final Compatibility Mode Microsoft PowerPoint -...

  12. SEISMIC: A Self-Exciting Point Process Model for Predicting Tweet Popularity

    E-Print Network [OSTI]

    Bejerano, Gill

    SEISMIC: A Self-Exciting Point Process Model for Predicting Tweet Popularity Qingyuan Zhao Stanford: Algorithms; Experimentation. Keywords: information diffusion; cascade prediction; self-exciting point process

  13. Enhancing Android Accessibility for Users with Hand Tremor by Reducing Fine Pointing and Steady Tapping

    E-Print Network [OSTI]

    Cortes, Corinna

    Enhancing Android Accessibility for Users with Hand Tremor by Reducing Fine Pointing and Steady; magnification; Android; disambiguation; fine pointing; steady tapping. ACM Classification Keywords H.5

  14. EIS-0002: Allocation of Petroleum Feedstock, Baltimore Gas & Electric Co., Sollers Point SNG Plant, Sollers Point, Baltimore County, MD

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration (ERA) developed this EIS to evaluate the social, economic and environmental impacts which may occur within the Baltimore Gas and Electric Company (BG&E) service area as a result of the ERA' s proposed decision to allocate up to 2,186,000 barrels per year of naphtha feedstock to BG&E to operate BG&E's existing synthetic natural gas facility located on Sollers Point in Baltimore County, Maryland.

  15. The Three-Point Correlation Function in Cosmology

    E-Print Network [OSTI]

    Masahiro Takada; Bhuvnesh Jain

    2003-01-27

    With the advent of high-quality surveys in cosmology the full three-point correlation function will be a valuable statistic for describing structure formation models. It contains information on cosmological parameters and detailed halo properties that cannot be extracted from the two-point correlation function. We use the halo clustering model to analytically calculate the three-point correlation function (3PCF) for general cosmological fields. We present detailed results for the configuration dependence of the 3-dimensional mass and galaxy distributions and the 2-dimensional cosmic shear field. We work in real space, where higher order correlation functions on small scales are easier to measure and interpret, but halo model calculations get rapidly intractable. Hence we develop techniques for accurate evaluations of the 1, 2 and 3-halo contributions to the 3PCF. The 3PCF violates the hierarchical ansatz in both its scale and configuration dependence. We study the behavior of the coefficient Q in the hierarchical expansion from large, quasilinear scales down to about 20 kpc. We find that the nonlinear 3PCF is sensitive to the halo profile of massive halos, especially its inner slope. We model the distribution of galaxies in halos and show that the 3PCF of red galaxies has a weaker configuration and scale dependence than the mass, while for blue galaxies it is very sensitive to the parameters of the galaxy formation model. The 3PCF from weak lensing on the other hand shows different scalings due to projection effects and a sensitivity to cosmological parameters.

  16. Reactor Vessel Removal: Improving Performance Big Rock Point Lessons Learned

    SciTech Connect (OSTI)

    Daly, P.T. [BNG America, D and D Operations, 804 South Illinois Avenue, Oak Ridge, TN 37830 (United States)

    2006-07-01

    The Big Rock Point (BRP) reactor vessel was successfully removed, packaged in a Type B shipping container, transported, and buried. The process took almost 4 years of work by many people and a variety of companies. This paper will discuss several areas that can reduce schedule time, resulting in reduced cost and employee dose exposure. For maximum cost effectiveness, these lessons should be applied during the planning stages when developing baseline cost and schedule, As Low As Reasonably Achievable (ALARA) budgets, and work processes. (authors)

  17. EA-1942: Cove Point Liquefaction Project, Lusby, Maryland

    Broader source: Energy.gov [DOE]

    The Federal Energy Regulatory Commission (FERC) prepared an EA that examined the potential environmental impacts of a proposal to add natural gas liquefaction and exportation capabilities to the existing Cove Point LNG Terminal. DOE, Office of Fossil Energy, was a cooperating agency because it had an obligation under Section 3 of the Natural Gas Act to authorize the import and export of natural gas, including LNG, unless it found that the import or export is not consistent with the public interest. DOE adopted FERC’s EA and issued a Finding of No Significant Impact.

  18. Asymptotics of solutions of a parabolic equation near singular points

    E-Print Network [OSTI]

    Sergei V. Zakharov

    2014-11-17

    Results of investigation of the asymptotic behavior of solutions to the Cauchy problems for a quasi-linear parabolic equation with a small parameter at a higher derivative near singular points of limit solutions are presented. Interest to the problem under consideration is explained by its applications to a wide class of physical systems and probabilistic processes such as acoustic waves in fluid and gas, hydrodynamical turbulence and nonlinear diffusion. The following cases are considered: a singularity generated by a jump discontinuity of the initial function, collision of two shock waves, gradient catastrophe, transition of a weak discontinuity into a shock wave, a singularity generated by a large initial gradient.

  19. Repulsive gravity near naked singularities and point massive particles

    E-Print Network [OSTI]

    J. W. Maluf

    2014-05-05

    We investigate the existence of repulsive gravitational acceleration near naked singularities. The investigation is carried out by means of the acceleration tensor, which is a coordinate invariant object. We find that the gravitational acceleration is repulsive in the vicinity of the origin in the Reissner-Nordstr{\\o}m and in the Kerr space-times, and attractive at large distances in the expected Newtonian way. We further address the space-time of a point massive particle, which also exhibits repulsive effects near the origin.

  20. Electromagnetic nucleon form factors in instant and point form

    E-Print Network [OSTI]

    T. Melde; K. Berger; L. Canton; W. Plessas; R. F. Wagenbrunn

    2007-09-30

    We present a study of the electromagnetic structure of the nucleons with constituent quark models in the framework of relativistic quantum mechanics. In particular, we address the construction of spectator-model currents in the instant and point forms. Corresponding results for the elastic nucleon electromagnetic form factors as well as charge radii and magnetic moments are presented. We also compare results obtained by different realistic nucleon wave functions stemming from alternative constituent quark models. Finally, we discuss the theoretical uncertainties that reside in the construction of spectator-model transition operators.

  1. Wave chaos in quantum systems with point interaction

    SciTech Connect (OSTI)

    Albeverio, S. (Ruhr Univ. Bochum (West Germany) CERFIM, Locarno (Switzerland)); Seba, P. (Ruhr Univ. Bochum (West Germany) Univ. of Essen (West Germany))

    1991-07-01

    The authors study perturbations {cflx H} of the quantized version {cflx H}{sub 0} of integrable Hamiltonian systems by point interactions. They relate the eigenvalues of {cflx H} to the zeros of a certain meromorphic function {xi}. Assuming the eigenvalues of {cflx H}{sub 0} are Poisson distributed, they get detailed information on the joint distribution of the zeros of {xi} and give bounds on the probability density for the spacings of eigenvalues of {cflx H}. Their results confirm the wave chaos phenomenon, as different from the quantum chaos phenomenon predicted by random matrix theory.

  2. An estimate for the location of QCD critical end point

    E-Print Network [OSTI]

    Roy A. Lacey; N. N. Ajitanand; J. M. Alexander; P. Chung; J. Jia; A. Taranenko; P. Danielewicz

    2008-05-09

    It is proposed that a study of the ratio of shear viscosity to entropy density $\\frac{\\eta}{s}$ as a function of the baryon chemical potential $\\mu_B$, and temperature T, provides a dynamic probe for the critical end point (CEP) in hot and dense QCD matter. An initial estimate from an elliptic flow excitation function gives $\\mu^{\\text{cep}}_B \\sim 150-180$ MeV and $T_{\\text{cep}} \\sim 165 - 170$ MeV for the location of the the CEP. These values place the CEP in the range for "immediate" validation at RHIC.

  3. Landau Free Energy and Analytic Tricritical Point in Holographic Superfluid

    E-Print Network [OSTI]

    Wung-Hong Huang

    2015-02-24

    We investigate the analytical method in studying the holographic superfluid model which is described by Maxwell field minimally coupling to a charged scalar field in a fixed AdS black hole background. We propose a method that enables us to find exact value of coefficient in the solution and thus obtain higher-order expansion of the associated Landau free energy of the holographic superfluid with flow. We determine the critical value of superfluid velocity at the tricritical point of holographic superfluid and compare it with the numerical value.

  4. In-situ measurement of skin friction and point bearing 

    E-Print Network [OSTI]

    Rehmet, Joseph Don

    1970-01-01

    &e Dutch Eri& tion Cone. It is a device which makes separate but non- simultaneous measurement of skin friction and point bc riu;g during a si ati. c test. Objectives The objectives of this study are: 1. To design and fabricate several testing de... resistance to driving is: p P . (l + Jx) dynamic static (2) where P. , =- ma::imum dynamic rosie'lance, d~ j n a la I i (. static ma" imum st atic resist ance a viscous damping consLani used when i i. '' c i ' 'rnq i. he s Jj 1 I ' '. I . '* Lani...

  5. Coulomb Potential of a Point Mass in Theta Noncommutative Geometry

    E-Print Network [OSTI]

    A. Lewis Licht

    2006-05-14

    The form of the Coulomb potential of a point in a noncommutative geometry is investigated. A distinction is made between measured distance and "coordinate" distance. The "effective" value of an operator is defined as its expectation value in a probe state of minimum coordinate dispersion. We find the effective value of the Coulomb potential to be finite at the origin, the effective charge density to be Gaussian, and the effective total electrostatic energy to be finite. The operator corresponding to the total electrostatic energy is found however to still be infinite.

  6. EDD-7 Electric Charge Point Meter test results

    SciTech Connect (OSTI)

    Mersman, C.R.

    1993-09-01

    The results of tests evaluating the electric switching portion of the EDD-7 Electric Charge Point Meter (ECPM) are presented. The ECPM is a modified parking meter that allows the purchase of 120 or 240 volt electric power. The ECPM is designed to make electricity available at any vehicle parking location. The test results indicate that the ECPM operated without failure thru a series of over current and ground fault tests at three different test temperatures. The magnitude of current required to trip the over current protection circuitry varied with temperature while the performance of the ground fault interruption circuitry did not change significantly with the test temperature.

  7. Low-melting point inorganic nitrate salt heat transfer fluid

    DOE Patents [OSTI]

    Bradshaw, Robert W. (Livermore, CA); Brosseau, Douglas A. (Albuquerque, NM)

    2009-09-15

    A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO.sub.3, 40-52 wt % KNO.sub.3, 13-21 wt % LiNO.sub.3, and 20-27 wt % Ca(NO.sub.3).sub.2. These compositions can have liquidus temperatures less than 100 C; thermal stability limits greater than 500 C; and viscosity in the range of 5-6 cP at 300 C; and 2-3 cP at 400 C.

  8. Relativistic Point Coupling Model for Vibrational Excitations in the Continuum

    SciTech Connect (OSTI)

    Ring, P.; Daoutidis, J.; Litvinova, E.; Niksic, T.; Paar, N.; Vretenar, D.

    2009-08-26

    An implementation of the relativistic random phase approximation with the proper treatment of the continuum has been developed for the relativistic point coupling model and applied to investigate collective excitations in spherical nuclei. The results are compared with the spectral implementation of the same model. In heavy nuclei, where the escape width is negligible, we find an excellent agreement between both methods in the region of giant resonance and some discrepancies in the region of low-lying pygmy resonance. The differences are more pronounced in light nuclei due to the larger values of the escape widths.

  9. Hunts Point, Washington: 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 JumpNewTexas: EnergyHunterdon County,Huntley, Illinois:Hunts Point,

  10. MHK Projects/Brilliant Point Project | 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:Montezuma,Information MHKMHK5 < MHK Projects Jump to:Brilliant Point Project

  11. Piney Point Village, 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 ViewMayo, Maryland:NPIProtectio1975) | OpenBethlehem Biomass Facility JumpPineview,Piney Point

  12. Point Pleasant Beach, New Jersey: Energy Resources | 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 ViewMayo, Maryland:NPIProtectio1975) |Texas: Energy Resources JumpOhio:Pod GeneratingPoint

  13. Point Pleasant, New Jersey: 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 ViewMayo, Maryland:NPIProtectio1975) |Texas: Energy Resources JumpOhio:Pod GeneratingPointPleasant,

  14. POINT OF CONTACT RESPONSIBILITIES FOR RECORDS MANAGEMENT | Department of

    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 GasAdjustmentsShirleyEnergy AEnergy Managing853926Families | DepartmentEnergy A list of point of contact

  15. Bay Point, California: 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:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminexInformationArkansas: Energy ResourcesPoint, California:

  16. Camp Point, Illinois: 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:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village, Arkansas: Energy Resources Jump to:InformationPoint,

  17. Canal Point, Florida: 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:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village, Arkansas: Energy ResourcesNew York:CamptonCanPoint,

  18. Cape May Point, New Jersey: 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:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village, Arkansas: EnergyCounty,NewHatteras Elec Member CorpPoint,

  19. Blue Point, New York: 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:QA J-E-1 SECTION JEnvironmental JumpInformationBio-GasIllinois: EnergyHills, Connecticut:Ng Jump to:PeterPoint,

  20. Breezy Point, Minnesota: 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:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine: Energy ResourcesCounty, Texas: EnergyPoint, Minnesota: Energy

  1. NNSA Points of Contact | National Nuclear Security Administration

    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 GasAdministration Medal01 Sandia4) AugustA.MOXAdministration ContinuesPoints of

  2. Central Point, Oregon: 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:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR Jump to:RAPIDCavallo EnergyOhio:Elec Coop Inc JumpPoint,

  3. MHK Projects/Ashley Point Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenarios Towards 2050 Jump to:Projects/Alaska 31 < MHKAshley Point

  4. MHK Projects/Myette Point | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenarios Towards 2050 JumpCoos Bay OPTHalf|Myette Point < MHK Projects

  5. City of West Point, Georgia (Utility Company) | 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 ECoopButte County,Camilla,ThermalCubaParker,Georgia (Utility Company)West Point, Georgia

  6. Oak Point, 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:QA J-E-1 SECTION J APPENDIXsourceII Jump to:Information 3rd|Northfork ElectricName0 Jump to:Oahu,WindPoint,

  7. Pilot Point, 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:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, Blue Mountain GeothermalPilger EstatesPoint, Texas:

  8. Hanford Advisory Board SharePoint Login Instructions

    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 likeUniverse (Journalvivo Low-Dose Lowï‚—34 Revision 0AugustWorkingPage 1 FinalSharePoint

  9. A Robust Continuation Method to Pass Limit-Point Instability Kavous Jorabchi,

    E-Print Network [OSTI]

    Suresh, Krishnan

    of the equilibrium path in the vicinity of critical points. This allows the solution procedure to by-pass the critical point without experiencing ill-conditioning. An instance of such a well-conditioned path- displacement path can be challenging due to existence of critical points. Critical points are commonly

  10. A search for point sources of EeV photons

    SciTech Connect (OSTI)

    Aab, A.; Abreu, P.; Andringa, S.; Aglietta, M.; Ahlers, M.; Ahn, E. J.; Al Samarai, I.; Albuquerque, I. F. M.; Allekotte, I.; Allen, J.; Allison, P.; Almela, A.; Castillo, J. Alvarez; Alvarez-Muñiz, J.; Batista, R. Alves; Ambrosio, M.; Aramo, C.; Aminaei, A.; Anchordoqui, L.; Arqueros, F.; Collaboration: Pierre Auger Collaboration102; and others

    2014-07-10

    Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from –85° to +20°, in an energy range from 10{sup 17.3} eV to 10{sup 18.5} eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of –2, is 0.06 eV cm{sup –2} s{sup –1}, and no celestial direction exceeds 0.25 eV cm{sup –2} s{sup –1}. These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy.

  11. Controlling systems that drift through a tipping point

    SciTech Connect (OSTI)

    Nishikawa, Takashi; Ott, Edward

    2014-09-01

    Slow parameter drift is common in many systems (e.g., the amount of greenhouse gases in the terrestrial atmosphere is increasing). In such situations, the attractor on which the system trajectory lies can be destroyed, and the trajectory will then go to another attractor of the system. We consider the case where there are more than one of these possible final attractors, and we ask whether we can control the outcome (i.e., the attractor that ultimately captures the trajectory) using only small controlling perturbations. Specifically, we consider the problem of controlling a noisy system whose parameter slowly drifts through a saddle-node bifurcation taking place on a fractal boundary between the basins of multiple attractors. We show that, when the noise level is low, a small perturbation of size comparable to the noise amplitude applied at a single point in time can ensure that the system will evolve toward a target attracting state with high probability. For a range of noise levels, we find that the minimum size of perturbation required for control is much smaller within a time period that starts some time after the bifurcation, providing a “window of opportunity” for driving the system toward a desirable state. We refer to this procedure as tipping point control.

  12. Exceptional points, phase rigidity and nonlinear Schrödinger equation

    E-Print Network [OSTI]

    Hichem Eleuch; Ingrid Rotter

    2014-10-06

    The natural environment of a localized quantum system is the continuum of scattering wavefunctions into which the system is embedded. It can be changed by external fields, however never be deleted. The control of the system's properties by varying a certain parameter provides us information on the system. It is, in many cases, counterintuitive and points to the same phenomena in different systems in spite of the specific differences between them. In our paper, we use a schematic model in order to simulate the main features of small open quantum systems. At low level density, the system is described well by standard Hermitian quantum physics while fundamental differences appear at high level density due to the non-Hermiticity of the Hamiltonian which cannot be neglected under this condition. The influence of exceptional points, the phase rigidity of the wavefunctions and the nonlinearities in the equations are discussed by means of different numerical and (when possible) analytical results. The transition from a closed system at low level density to an open one at high level density occurs smoothly.

  13. Microsoft PowerPoint - DOE O 413 3B Brief v9 with key points in notes

    Energy Savers [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 DeliciousMathematicsEnergyInterested Parties - WAPAEnergy May 28MarEnergy Microsoft PowerPointSeptember

  14. Gravity Role in Classical Electrodynamics of Charged Point Source

    E-Print Network [OSTI]

    M. B. Golubev

    1999-07-14

    This paper deals with the problem of a point-like charged source under the influence of the external electromagnetic field in terms of perturbation theory for GR equations. It is obtained that GR, in contrast with the classical electrodynamics, in linear perturbation theory predicts an unlimited growth of the dipole perturbation. It is shown that the reason for this unlimited perturbation growth might be related to the presence of the unstable rotational perturbation mode. The analysis of the conditions under which this instability may disappear is performed. The momentum value at which the stability is reached is estimated. These estimations give the electron spin by the order of magnitude (when charge value is equal to elementary one).

  15. Gas-liquid critical point in ionic fluids

    E-Print Network [OSTI]

    O. Patsahan; I. Mryglod; T. Patsahan

    2006-06-27

    Based on the method of collective variables we develop the statistical field theory for the study of a simple charge-asymmetric $1:z$ primitive model (SPM). It is shown that the well-known approximations for the free energy, in particular DHLL and ORPA, can be obtained within the framework of this theory. In order to study the gas-liquid critical point of SPM we propose the method for the calculation of chemical potential conjugate to the total number density which allows us to take into account the higher order fluctuation effects. As a result, the gas-liquid phase diagrams are calculated for $z=2-4$. The results demonstrate the qualitative agreement with MC simulation data: critical temperature decreases when $z$ increases and critical density increases rapidly with $z$.

  16. Left Separated Spaces with Point-Countable Bases

    E-Print Network [OSTI]

    Fleissner, William G.

    1986-04-01

    separated. Define t(B) to be the <-least element of B. If {Bn: nEw} includes a base for x, then x E Bn C [x, (0) for some n, in which case x = t(Bn). (a') =? (b/) Let X = U{Xn : nEw}, where each Xn is weakly separated by {Ux: x E Xn}. For BEE define s...(Bo, ... ,Bm) = {x E X: x E Bm C Ux}. The definition of weakly separated guarantees that for each n, there is at most one point in s(.8o, ... , Bm) n Xn . (b /) =} (c) For x EX, we define H x containing x such that if Bo, ... ,Bn each meet Hx, then s( .80...

  17. The massless higher-loop two-point function

    E-Print Network [OSTI]

    Francis Brown

    2008-04-10

    We introduce a new method for computing massless Feynman integrals analytically in parametric form. An analysis of the method yields a criterion for a primitive Feynman graph $G$ to evaluate to multiple zeta values. The criterion depends only on the topology of $G$, and can be checked algorithmically. As a corollary, we reprove the result, due to Bierenbaum and Weinzierl, that the massless 2-loop 2-point function is expressible in terms of multiple zeta values, and generalize this to the 3, 4, and 5-loop cases. We find that the coefficients in the Taylor expansion of planar graphs in this range evaluate to multiple zeta values, but the non-planar graphs with crossing number 1 may evaluate to multiple sums with $6^\\mathrm{th}$ roots of unity. Our method fails for the five loop graphs with crossing number 2 obtained by breaking open the bipartite graph $K_{3,4}$ at one edge.

  18. Saddle point inflation from $f(R)$ theory

    E-Print Network [OSTI]

    Michal Artymowski; Zygmunt Lalak; Marek Lewicki

    2015-08-20

    We analyse several saddle point inflationary scenarios based on power-law $f(R)$ models. We investigate inflation resulting from $f(R) = R + \\alpha_n M^{2(1-n)}R^n + \\alpha_{n+1}M^{-2n}R^{n+1}$ and $f(R) = \\sum_n^l \\alpha_n M^{2(1-n)} R^n$ as well as $l\\to\\infty$ limit of the latter. In all cases we have found relation between $\\alpha_n$ coefficients and checked consistency with the PLANCK data as well as constraints coming from the stability of the models in question. Each of the models provides solutions which are both stable and consistent with PLANCK data, however only in parts of the parameter space where inflation starts on the plateau of the potential, some distance from the saddle. And thus all the correct solutions bear some resemblance to the Starobinsky model.

  19. Contribution of unresolved point sources to the galactic diffuse emission

    E-Print Network [OSTI]

    Casanova, S; Casanova, Sabrina; Dingus, Brenda L.

    2006-01-01

    The detection by the HESS atmospheric Cherenkov telescope of fifteen new sources from the Galactic plane makes it possible to estimate the contribution of unresolved point sources like those detected by HESS to the diffuse Galactic emission measured by EGRET and recently at higher energies by the Milagro Collaboration. Assuming that HESS sources have all the same intrinsic luminosity, the contribution of this new source population can account for most of the Milagro $\\gamma$-ray emission at TeV energies and between 10 and 20 per cent of EGRET diffuse Galactic $\\gamma$-ray emission for energies bigger than 10 GeV. Also, by combining the HESS and the Milagro results, constraints can be put on the distribution and the luminosities of gamma ray emitters in the Galaxy.

  20. Contribution of unresolved point sources to the galactic diffuse emission

    E-Print Network [OSTI]

    Sabrina Casanova; Brenda L. Dingus

    2006-09-12

    The detection by the HESS atmospheric Cherenkov telescope of fifteen new sources from the Galactic plane makes it possible to estimate the contribution of unresolved point sources like those detected by HESS to the diffuse Galactic emission measured by EGRET and recently at higher energies by the Milagro Collaboration. Assuming that HESS sources have all the same intrinsic luminosity, the contribution of this new source population can account for most of the Milagro $\\gamma$-ray emission at TeV energies and between 10 and 20 per cent of EGRET diffuse Galactic $\\gamma$-ray emission for energies bigger than 10 GeV. Also, by combining the HESS and the Milagro results, constraints can be put on the distribution and the luminosities of gamma ray emitters in the Galaxy.

  1. Securing Single Points of Compromise (SPoC)

    SciTech Connect (OSTI)

    Belangia, David Warren

    2015-06-25

    Securing the Single Points of Compromise that provide central services to the institution’s environment is paramount to success when trying to protect the business. (Fisk, 2014) Time Based Security mandates protection (erecting and ensuring effective controls) that last longer than the time to detect and react to a compromise. When enterprise protections fail, providing additional layered controls for these central services provides more time to detect and react. While guidance is readily available for securing the individual critical asset, protecting these assets as a group is not often discussed. Using best business practices to protect these resources as individual assets while leveraging holistic defenses for the group increases the opportunity to maximize protection time, allowing detection and reaction time for the SPoCs that is commensurate with the inherent risk of these centralized services.

  2. Momentum dependent quark mass in two-point correlators

    E-Print Network [OSTI]

    B. Holdom; Randy Lewis

    1995-04-26

    A momentum dependent quark mass may be incorporated into a quark model in a manner consistent with dynamically broken chiral symmetry. We use this to study the high $Q^2$ behavior of the vector, axialvector, scalar and pseudoscalar two-point correlation functions. Expanding the results to order $1/Q^6$, we show the correspondence between the dynamical quark mass and the vacuum condensates which appear in the operator product expansion of QCD. We recover the correct leading logarithmic $Q^2$ dependence of the various terms in the OPE, but we also find substantial subleading corrections which are numerically huge in a specific case. We conclude by using the vector minus axialvector correlator to estimate the $\\pi^+ - \\pi^0$ electromagnetic mass difference.

  3. Two-point Correlator Fits on HISQ Ensembles

    E-Print Network [OSTI]

    A. Bazavov; C. Bernard; C. Bouchard; C. DeTar; D. Du; A. X. El-Khadra; J. Foley; E. D. Freeland; E. Gamiz; Steven Gottlieb; U. M. Heller; J. E. Hetrick; J. Kim; A. S. Kronfeld; J. Laiho; L. Levkova; M. Lightman; P. B. Mackenzie; E. T. Neil; M. Oktay; J. N. Simone; R. L. Sugar; D. Toussaint; R. S. Van de Water; R. Zhou; for the Fermilab Lattice Collaboration; for the MILC Collaboration

    2012-12-04

    We present our methods to fit the two point correlators for light, strange, and charmed pseudoscalar meson physics with the highly improved staggered quark (HISQ) action. We make use of the least-squares fit including the full covariance matrix of the correlators and including Gaussian constraints on some parameters. We fit the correlators on a variety of the HISQ ensembles. The lattice spacing ranges from 0.15 fm down to 0.06 fm. The light sea quark mass ranges from 0.2 times the strange quark mass down to the physical light quark mass. The HISQ ensembles also include lattices with different volumes and with unphysical values of the strange quark mass. We use the results from this work to obtain our preliminary results of $f_D$, $f_{D_s}$, $f_{D_s}/f_{D}$, and ratios of quark masses presented in another talk [1].

  4. Adaptive Ray Tracing for Radiative Transfer around Point Sources

    E-Print Network [OSTI]

    Tom Abel; Benjamin D. Wandelt

    2001-11-01

    We describe a novel adaptive ray tracing scheme to solve the equation of radiative transfer around point sources in hydrodynamical simulations. The angular resolution adapts to the local hydrodynamical resolution and hence is of use for adaptive meshes as well as adaptive smooth particle hydrodynamical simulations. Recursive creation of rays ensures ease of implementation. The multiple radial integrations needed to solve the time dependent radiative transfer are sped up significantly using a quad-tree once the rays are cast. Simplifications advantageous for methods with one radiation source are briefly discussed. The suggested method is easily generalized to speed up Monte Carlo radiative transfer techniques. In summary a nearly optimal use of long characteristics is presented and aspects of its implementation and comparison to other methods are given.

  5. Thermodynamic stability of oxygen point defects in cubic Zirconia

    E-Print Network [OSTI]

    Samanta, Amit; Li, Ju

    2010-01-01

    Zirconia (ZrO2) is an important material with technological applications which are affected by point defect physics. Ab-initio calculations are performed to understand the structural and electronic properties of oxygen vacancies and interstitials in different charge states in cubic zirconia. We find oxygen interstitials in cubic ZrO2 can have five different configurations - dumbbell, dumbbell, crowd-ion, octahedral, and distorted dumbbell. For a neutral and singly charged oxygen interstitial, the lowest energy configuration is the dumbbell, while for a doubly charged oxygen interstitial the octahedral site is energetically the most favorable. Both the oxygen interstitial and the oxygen vacancy are negative-U, so that the singly charged defects are unstable at any Fermi level. The thermodynamic stability of these defects are studied in terms of Fermi level, oxygen partial pressure and temperature. A method to determine the chemical potential of the system as a function of temperature and pressure is propo...

  6. Hybrid shearing and phase-shifting point diffraction interferometer

    DOE Patents [OSTI]

    Goldberg, Kenneth Alan; Naulleau, Patrick P.

    2003-06-03

    A new interferometry configuration combines the strengths of two existing interferometry methods, improving the quality and extending the dynamic range of both. On the same patterned mask, placed near the image-plane of an optical system under test, patterns for phase-shifting point diffraction interferometry and lateral shearing interferometry coexist. The former giving verifiable high accuracy for the measurement of nearly diffraction-limited optical systems. The latter enabling the measurement of optical systems with more than one wave of aberration in the system wavefront. The interferometry configuration is a hybrid shearing and point diffraction interferometer system for testing an optical element that is positioned along an optical path including: a source of electromagnetic energy in the optical path; a first beam splitter that is secured to a device that includes means for maneuvering the first beam splitter in a first position wherein the first beam splitter is in the optical path dividing light from the source into a reference beam and a test beam and in a second position wherein the first beam splitter is outside the optical path: a hybrid mask which includes a first section that defines a test window and at least one reference pinhole and a second section that defines a second beam splitter wherein the hybrid mask is secured to a device that includes means for maneuvering either the first section or the second section into the optical path positioned in an image plane that is created by the optical element, with the proviso that the first section of the hybrid mask is positioned in the optical path when first beam splitter is positioned in the optical path; and a detector positioned after the hybrid mask along the optical path.

  7. Polymer quantization and the saddle point approximation of partition functions

    E-Print Network [OSTI]

    Hugo A. Morales Técotl; Daniel H. Orozco Borunda; Saeed Rastgoo

    2015-07-31

    The saddle point approximation of the path integral partition functions is an important way of deriving the thermodynamical properties of black holes. However, there are certain black hole models and some mathematically analog mechanical models for which this method can not be applied directly. This is due to the fact that their action evaluated on a classical solution is not finite and its first variation does not vanish for all consistent boundary conditions. These problems can be dealt with by adding a counter-term to the classical action, which is a solution of the corresponding Hamilton-Jacobi equation. In this work we study the effects of polymer quantization on a mechanical model presenting the aforementioned difficulties and contrast it with the above counter-term method. This type of quantization for mechanical models is motivated by the loop quantization of gravity which is known to play a role in the thermodynamics of black holes systems. The model we consider is a non relativistic particle in an inverse square potential and analyze two polarizations of the polymer quantization in which either the position or the momentum is discrete. In the former case, Thiemann's regularization is applied to represent the inverse power potential but we still need to incorporate the Hamilton-Jacobi counter-term which is now modified by polymer corrections. In the latter, momentum discrete case however, such regularization could not be implemented. Yet, remarkably, due to the fact that the position is bounded, we do not need a Hamilton-Jacobi counter-term in order to have a well defined saddle point approximation. Further developments and extensions are commented upon in the discussion.

  8. Polymer quantization and the saddle point approximation of partition functions

    E-Print Network [OSTI]

    Hugo A. Morales-Técotl; Daniel H. Orozco-Borunda; Saeed Rastgoo

    2015-11-10

    The saddle point approximation of the path integral partition functions is an important way of deriving the thermodynamical properties of black holes. However, there are certain black hole models and some mathematically analog mechanical models for which this method cannot be applied directly. This is due to the fact that their action evaluated on a classical solution is not finite and its first variation does not vanish for all consistent boundary conditions. These problems can be dealt with by adding a counterterm to the classical action, which is a solution of the corresponding Hamilton-Jacobi equation. In this work we study the effects of polymer quantization on a mechanical model presenting the aforementioned difficulties and contrast it with the above counterterm method. This type of quantization for mechanical models is motivated by the loop quantization of gravity which is known to play a role in the thermodynamics of black hole systems. The model we consider is a nonrelativistic particle in an inverse square potential, and analyze two polarizations of the polymer quantization in which either the position or the momentum is discrete. In the former case, Thiemann's regularization is applied to represent the inverse power potential but we still need to incorporate the Hamilton-Jacobi counterterm which is now modified by polymer corrections. In the latter, momentum discrete case however, such regularization could not be implemented. Yet, remarkably, owing to the fact that the position is bounded, we do not need a Hamilton-Jacobi counterterm in order to have a well-defined saddle point approximation. Further developments and extensions are commented upon in the discussion.

  9. Providing nearest neighbor point-to-point communications among compute nodes of an operational group in a global combining network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J.; Faraj, Ahmad A.; Inglett, Todd A.; Ratterman, Joseph D.

    2012-10-23

    Methods, apparatus, and products are disclosed for providing nearest neighbor point-to-point communications among compute nodes of an operational group in a global combining network of a parallel computer, each compute node connected to each adjacent compute node in the global combining network through a link, that include: identifying each link in the global combining network for each compute node of the operational group; designating one of a plurality of point-to-point class routing identifiers for each link such that no compute node in the operational group is connected to two adjacent compute nodes in the operational group with links designated for the same class routing identifiers; and configuring each compute node of the operational group for point-to-point communications with each adjacent compute node in the global combining network through the link between that compute node and that adjacent compute node using that link's designated class routing identifier.

  10. Wave mechanics in media pinned at Bravais lattice points

    E-Print Network [OSTI]

    Mehul Makwana; Tryfon Antonakakis; Ben Maling; Sebastien Guenneau; Richard Craster

    2015-05-12

    The propagation of waves through microstructured media with periodically arranged inclusions has applications in many areas of physics and engineering, stretching from photonic crystals through to seismic metamaterials. In the high-frequency regime, modelling such behaviour is complicated by multiple scattering of the resulting short waves between the inclusions. Our aim is to develop an asymptotic theory for modelling systems with arbitrarily-shaped inclusions located on general Bravais lattices. We then consider the limit of point-like inclusions, the advantage being that exact solutions can be obtained using Fourier methods, and go on to derive effective medium equations using asymptotic analysis. This approach allows us to explore the underlying reasons for dynamic anisotropy, localisation of waves, and other properties typical of such systems, and in particular their dependence upon geometry. Solutions of the effective medium equations are compared with the exact solutions, shedding further light on the underlying physics. We focus on examples that exhibit dynamic anisotropy as these demonstrate the capability of the asymptotic theory to pick up detailed qualitative and quantitative features.

  11. The Three-Point Correlation Function for Spin-2 Fields

    E-Print Network [OSTI]

    Masahiro Takada; Bhuvnesh Jain

    2002-12-17

    The three-point correlation function (3PCF) of the spin-2 fields, the cosmic shear and cosmic microwave background polarization fields, is a statistical measure of non-Gaussian signals. At each vertex of a triangle, the shear field has two independent components. The resulting eight possible 3PCFs were recently investigated by Schneider & Lombardi (2002) and Zaldarriaga & Scoccimarro (2002). Using rotation and parity transformations they addressed the question: how many non-zero components for the shear 3PCF exist? We address this question using an analytical model and measurements from ray-tracing simulations. We show that all the eight 3PCFs are generally non-zero and have comparable amplitude. These eight 3PCFs can be used to improve the signal-to-noise from survey data and their configuration dependence can be used to separate the contribution from E and B-modes. We estimate the signal-to-noise for measuring the shear 3PCF from weak lensing surveys using simulated maps that include the noise due to intrinsic ellipticities. A deep lensing survey with area exceeding 10 square degrees would allow for the detection of the shear 3PCFs, but a survey area of order 100 square degrees is needed for accurate measurements.

  12. Environmental geophysics at Beach Point, Aberdeen Proving Ground, Maryland

    SciTech Connect (OSTI)

    McGinnis, L.D.; Daudt, C.R.; Thompson, M.D.; Miller, S.F.; Mandell, W.A.; Wrobel, J.

    1994-07-01

    Geophysical studies at Beach Point Peninsula, in the Edgewood area of Aberdeen Proving Ground, Maryland, provide diagnostic signatures of the hydrogeologic framework and possible contaminant pathways. These studies permit construction of the most reasonable scenario linking dense, nonaqueous-phase liquid contaminants introduced at the surface with their pathway through the surficial aquifer. Subsurface geology and contaminant presence were identified by drilling, outcrop mapping, and groundwater sampling and analyses. Suspected sources of near-surface contaminants were defined by magnetic and conductivity measurements. Negative conductivity anomalies may be associated with unlined trenches. Positive magnetic and conductivity anomalies outline suspected tanks and pipes. The anomalies of greatest concern are those spatially associated with a concrete slab that formerly supported a mobile clothing impregnating plant. Resistivity and conductivity profiling and depth soundings were used to identify an electrical anomaly extending through the surficial aquifer to the basal pleistocene unconformity, which was mapped by using seismic reflection methods. The anomaly may be representative of a contaminant plume connected to surficial sources. Major activities in the area included liquid rocket fuel tests, rocket fuel fire suppression tests, pyrotechnic material and smoke generator tests, and the use of solvents at a mobile clothing impregnating plant.

  13. Polymer quantization and the saddle point approximation of partition functions

    E-Print Network [OSTI]

    Técotl, Hugo A Morales; Rastgoo, Saeed

    2015-01-01

    The saddle point approximation of the path integral partition functions is an important way of deriving the thermodynamical properties of black holes. However, there are certain black hole models and some mathematically analog mechanical models for which this method can not be applied directly. This is due to the fact that their action evaluated on a classical solution is not finite and its first variation does not vanish for all consistent boundary conditions. These problems can be dealt with by adding a counter-term to the classical action, which is a solution of the corresponding Hamilton-Jacobi equation. In this work we study the effects of polymer quantization on a mechanical model presenting the aforementioned difficulties and contrast it with the above counter-term method. This type of quantization for mechanical models is motivated by the loop quantization of gravity which is known to play a role in the thermodynamics of black holes systems. The model we consider is a non relativistic particle in an i...

  14. Synchrotron Radiation Therapy from a Medical Physics point of view

    SciTech Connect (OSTI)

    Prezado, Y.; Berkvens, P.; Braeuer-Krisch, E.; Renier, M.; Bravin, A. [ID17 Biomedical Beamline, European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz B.P. 220, 38043 Grenoble Cedex (France); Adam, J. F. [INSERM, U836, Equipe 6, BP 170, Grenoble Cedex 9, F-38042 (France); Universite Joseph Fourier, B.P. 51, Grenoble Cedex 9, F-38041 (France); ID17 Biomedical Beamline, European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz B.P. 220, 38043 Grenoble Cedex (France); Centre Hospitalier Universitaire, B.P. 217, Grenoble Cedex 9, F-38043 (France); Martinez-Rovira, I. [ID17 Biomedical Beamline, European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz B.P. 220, 38043 Grenoble Cedex (France); Institut de Tecniques Energetiques, Universitat Politecnica de Catalunya, Diagonal 647, E-08028 Barcelona (Spain); Fois, G. [ID17 Biomedical Beamline, European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz B.P. 220, 38043 Grenoble Cedex (France); Dipartimento di Fisica, Universita degli Studi di Cagliari, Strada Provinciale Monserrato Sestu km 0.700, Monserrato, Cagliari 09042 (Italy); Thengumpallil, S. [ID17 Biomedical Beamline, European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz B.P. 220, 38043 Grenoble Cedex (France); Dipartimento di Fisica E. Amaldi, Universita degli Studi Roma Tre, 84 Via della Vasca Navale, 00146 Roma (Italy); Edouard, M.; Deman, P. [INSERM, U836, Equipe 6, BP 170, Grenoble Cedex 9, F-38042 (France); Universite Joseph Fourier, B.P. 51, Grenoble Cedex 9, F-38041 (France); ID17 Biomedical Beamline, European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz B.P. 220, 38043 Grenoble Cedex (France); Vautrin, M. [INSERM, U836, Equipe 6, BP 170, Grenoble Cedex 9, F-38042 (France); Universite Joseph Fourier, B.P. 51, Grenoble Cedex 9, F-38041 (France); DOSIsoft, Cachan (France)

    2010-07-23

    Synchrotron radiation (SR) therapy is a promising alternative to treat brain tumors, whose management is limited due to the high morbidity of the surrounding healthy tissues. Several approaches are being explored by using SR at the European Synchrotron Radiation Facility (ESRF), where three techniques are under development Synchrotron Stereotactic Radiation Therapy (SSRT), Microbeam Radiation Therapy (MRT) and Minibeam Radiation Therapy (MBRT).The sucess of the preclinical studies on SSRT and MRT has paved the way to clinical trials currently in preparation at the ESRF. With this aim, different dosimetric aspects from both theoretical and experimental points of view have been assessed. In particular, the definition of safe irradiation protocols, the beam energy providing the best balance between tumor treatment and healthy tissue sparing in MRT and MBRT, the special dosimetric considerations for small field dosimetry, etc will be described. In addition, for the clinical trials, the definition of appropiate dosimetry protocols for patients according to the well established European Medical Physics recommendations will be discussed. Finally, the state of the art of the MBRT technical developments at the ESRF will be presented. In 2006 A. Dilmanian and collaborators proposed the use of thicker microbeams (0.36-0.68 mm). This new type of radiotherapy is the most recently implemented technique at the ESRF and it has been called MBRT. The main advantage of MBRT with respect to MRT is that it does not require high dose rates. Therefore it can be more easily applied and extended outside synchrotron sources in the future.

  15. Simulating full QCD with the fixed point action

    SciTech Connect (OSTI)

    Hasenfratz, Anna; Hasenfratz, Peter; Niedermayer, Ferenc

    2005-12-01

    Because of its complex structure the parametrized fixed point action can not be simulated with the available local updating algorithms. We constructed, coded, and tested an updating procedure with 2+1 light flavors, where the targeted s quark mass is at its physical value while the u and d quarks should produce pions lighter than 300 MeV. In the algorithm a partially global gauge update is followed by several accept/reject steps, where parts of the determinant are switched on gradually in the order of their costs. The trial configuration that is offered in the last, most expensive, stochastic accept/reject step differs from the original configuration by a Metropolis + over-relaxation gauge update over a subvolume of {approx}(1.3 fm){sup 4}. The acceptance rate in this accept/reject step is {approx}0.4. The code is optimized on different architectures and is running on lattices with L{sub s}{approx_equal}1.2 fm and 1.8 fm at a resolution of a{approx_equal}0.15 fm.

  16. Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial...

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

    6 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive...

  17. On the linear finite element analysis of fully-coupled point contact elastohydrodynamic lubrication problems

    E-Print Network [OSTI]

    Jimack, Peter

    On the linear finite element analysis of fully-coupled point contact elastohydrodynamic lubrication lubrication (EHL) point contact problems requires the numerical solution of the elasticity prob- lem, technique is applied. KEYWORDS: elastohydrodynamic lubrication; finite element method; linear elasticity

  18. Microsoft PowerPoint -Risk_Portfolio_Manager(RPM)_overview_Under...

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

    PowerPoint - RiskPortfolioManager(RPM)overviewUnderSecDOE2011V4 Final 3-22-2011.ppt Read-Only Compatibili Microsoft PowerPoint - RiskPortfolioManager(RPM)overviewUn...

  19. High Quality Interactive Rendering of Massive Point Models using Multi-way Prashant Goswami

    E-Print Network [OSTI]

    Pajarola, Renato B.

    of millions of splats/second on modern GPUs, improving the quality vs. performance ratio compared to previous large point data rendering methods. II. RELATED WORK While the use of points as rendering primitives has

  20. New correlations for dew-point, specific gravity and producing yield for gas condensates 

    E-Print Network [OSTI]

    Ovalle Cortissoz, Adriana Patricia

    2002-01-01

    This work presents four newly developed correlations to estimate dew-point pressure, current specific gravity and producing yield of gas condensate reservoirs. The first correlation may be used to predict the dew-point pressure of the reservoir gas...

  1. A parabola is the set of all points in a plane equidistant from a fixed ...

    E-Print Network [OSTI]

    MA 154 Lesson 25 Delworth. Section 11.2 Parabolas. A parabola is the set of all points in a plane equidistant from a fixed point F (the focus) and a fixed line l ...

  2. A hyperbola is the set of all points in a plane, the difference of whose ...

    E-Print Network [OSTI]

    A hyperbola is the set of all points in a plane, the difference of whose distances from two fixed points (the foci) in the plane is a positive constant. The midpoint of

  3. QUANTIFYING NON-POINT SOURCES OF VOLATILE ORGANIC COMPOUNDS IN STORMWATER FROM A PARKING LOT

    E-Print Network [OSTI]

    1 QUANTIFYING NON-POINT SOURCES OF VOLATILE ORGANIC COMPOUNDS IN STORMWATER FROM A PARKING LOT (VOCs) in stormwater from an asphalt parking lot without obvious point sources (e.g. gasoline stations). The parking lot surface and atmosphere are important non-point sources of VOCs, with each being important

  4. Structures alg'ebriques dynamiques, espaces topologiques sans points et programme de Hilbert

    E-Print Network [OSTI]

    Lombardi, Henri

    Structures alg'ebriques dynamiques, espaces topologiques sans points et treillis distributifs et `a des espaces topologiques sans points. Les obje* *ts abstraits utilis'es par les math'ematiques classiques correspondent aux points classiques de c* *es espaces sans

  5. Structures algebriques dynamiques, espaces topologiques sans points et programme de Hilbert

    E-Print Network [OSTI]

    Lombardi, Henri

    Structures alg´ebriques dynamiques, espaces topologiques sans points et programme de Hilbert Henri naissance de mani`ere naturelle `a des treillis distributifs et `a des espaces topologiques sans points. Les espaces sans points. Dans cet article, nous illustrerons ce ph´enom`ene principalement avec le spectre de

  6. Gravity points in potential-field approaches to self organisation Aaron Sampson

    E-Print Network [OSTI]

    Smith, Graeme

    Gravity points in potential-field approaches to self organisation Aaron Sampson School, among other applications. In this paper, we extend this approach by the addition of gravity points which]. In this paper, we extend this pattern by a notion of gravity points. These produce additional fields which

  7. Up-and Downwards Motions in 3D Pointing Sidrah Laldin

    E-Print Network [OSTI]

    Stürzlinger, Wolfgang

    @cse.yorku.ca ABSTRACT We present an experiment that examines 3D pointing in fish tank VR using the ISO 9241-9 standard styles. Keywords Pointing; Fitts' law; ISO 9241-9; virtual reality. 1. INTRODUCTION We present a pointing not analyze them. 2. EXPERIMENT Twelve volunteers participated in our study. We used a fish-tank VR system

  8. Two-point paraxial traveltime formula for inhomogeneous isotropic and anisotropic media

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Two-point paraxial traveltime formula for inhomogeneous isotropic and anisotropic media: tests traveltime formula designed for the approximate calculation of the traveltime between points S and R located formula has the form of the Taylor expansion of the two-point traveltime with respect to spatial Cartesian

  9. Two-point paraxial traveltime formula for inhomogeneous isotropic and anisotropic media: Tests of accuracy

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Two-point paraxial traveltime formula for inhomogeneous isotropic and anisotropic media: Tests of the two-point paraxial travel- time formula designed for the approximate calculation of the traveltime interfaces. The two- point paraxial traveltime formula has the form of the Taylor expansion of the two

  10. The Implementation of Mobile Bank Usage from marketing point of view of bank managers in Jordan.

    E-Print Network [OSTI]

    The Implementation of Mobile Bank Usage from marketing point of view of bank managers in Jordan. The study aims at determine the effect of the implementation of Mobile Bank Usage from marketing point between the Implementation of Mobile Bank Usage from marketing point of view of bank managers in Jordan

  11. Close-Packed Floating Clusters: Granular Hydrodynamics Beyond the Freezing Point? Baruch Meerson,1

    E-Print Network [OSTI]

    Meerson, Baruch

    Close-Packed Floating Clusters: Granular Hydrodynamics Beyond the Freezing Point? Baruch Meerson,1 a simple explanation for the success of NSGH beyond the freezing point. DOI: 10.1103/PhysRevLett.91 the packing fraction approaches the freezing point value f ' 0:49 (in three dimensions) or 0.69 (in two

  12. Measurement of freezing point depression of water in glass capillaries and the associated ice front shape

    E-Print Network [OSTI]

    Wan, Richard G.

    Measurement of freezing point depression of water in glass capillaries and the associated ice front Variations of the Kelvin equation W. Thomson, Philos. Mag. 42, 448 1871 to describe the freezing point. The capillary freezing point depression for glass tubes with radii of 87 m­3 m was successfully measured

  13. Hydrogen interaction with point defects in tungsten K. Heinola, T. Ahlgren, K. Nordlund, and J. Keinonen

    E-Print Network [OSTI]

    Nordlund, Kai

    Hydrogen interaction with point defects in tungsten K. Heinola, T. Ahlgren, K. Nordlund, and J-principles calculations were used in determining the binding and trapping properties of hydrogen to point defects in tungsten. Hydrogen zero-point vibrations were taken into account. It was concluded that the monovacancy can

  14. Fast Marching farthest point sampling Carsten Moenning (cm230@cl.cam.ac.uk)

    E-Print Network [OSTI]

    Dodgson, Neil

    Fast Marching farthest point sampling Carsten Moenning (cm230@cl.cam.ac.uk) Neil A. Dodgson (nad@cl.cam.ac.uk) Introduction We introduce the Fast Marching farthest point sampling (FastFPS) approach for the progressive sampling of planar domains and curved manifolds in triangulated, point cloud or implicit form. We use Fast

  15. A New Look at Infant Pointing Michael Tomasello, Malinda Carpenter, and Ulf Liszkowski

    E-Print Network [OSTI]

    Carpenter, M.alinda

    that when 12-month-old infants point for an adult they are in some sense trying to influence her mental communi- cation. Infants use protoimperative points to get the adult to retrieve an object for them: They use the adult as a tool to obtain the object. They use protodeclaratives points to get the adult

  16. Solution of a Class of the Riemann-Papperitz Equation with Two Singular Points

    E-Print Network [OSTI]

    Milan Batista

    2005-08-11

    This paper provides the solution of the Riemann-Papperitz equation with singular points at z=-i,i.This solution is obtained by mapping the singular points into points 0,infinity. The solution is then obtained in terms of the Gauss hypergeometric function.

  17. Best Entry Points for Structured Document Retrieval Part II: Types, Usage and Effectiveness

    E-Print Network [OSTI]

    Lalmas, Mounia

    Best Entry Points for Structured Document Retrieval ­ Part II: Types, Usage and Effectiveness Jane documents. This paper examines the concept of best entry points, which are document components from which of best entry points in structured document retrieval, and their usage and effectiveness in real

  18. Consideration of changes required to support additional entry points in the Academic Year 1. Background

    E-Print Network [OSTI]

    Greenaway, Alan

    Consideration of changes required to support additional entry points in the Academic Year 1 for additional intakes (for example, whether more additional entry points ­ such as April - might also to the increasing number of ad hoc requests coming forward for additional entry points in the academic year

  19. Taming Wild Behavior: The Input Observer for Obtaining Text Entry and Mouse Pointing Measures from

    E-Print Network [OSTI]

    Wobbrock, Jacob O.

    Taming Wild Behavior: The Input Observer for Obtaining Text Entry and Mouse Pointing Measures from that can run quietly in the background of users' computers and measure their text entry and mouse pointing to segment text entry and mouse pointing input streams into "trials." We are the first to measure errors

  20. math-1 math-1Mathematics for 3D Graphics Points, Vectors, Vertices, Coordinates

    E-Print Network [OSTI]

    Koppelman, David M.

    math-1 math-1Mathematics for 3D Graphics Topics Points, Vectors, Vertices, Coordinates Dot Products," Second Edition, Addison Wesley. math-1 EE 4702-1 Lecture Transparency. Formatted 9:27, 10 September 2014 from set-1-math. math-1 #12;math-2 math-2Points and Vectors Point: Indivisible location in space. P1 P2

  1. math-1 math-1Mathematics for 3D Graphics Points, Vectors, Vertices, Coordinates

    E-Print Network [OSTI]

    Koppelman, David M.

    math-1 math-1Mathematics for 3D Graphics Topics Points, Vectors, Vertices, Coordinates Dot Products," Second Edition, Addison Wesley. math-1 EE 7700-1 Lecture Transparency. Formatted 10:16, 29 January 2010 from set-1-math. math-1 #12;math-2 math-2Points and Vectors Point: Indivisible location in space. E

  2. Point No Point Marsh Restoration and Flood Risk Mitigation Feasibility Project 1. Provide the name of all non-Federal interests planning to act as the sponsor,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Point No Point Marsh Restoration and Flood Risk Mitigation Feasibility Project 1. Provide the name. This proposal is for a feasibility study for environmental restoration and flood risk mitigation. 3. State Restoration and Flood Risk Mitigation Feasibility Project are: Determine alternative approaches

  3. BP Cherry Point Cogeneration Project, Draft Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2003-09-19

    BP West Coast Products, LLC (BP or the Applicant) proposes to construct and operate a nominal 720-megawatt (MW), natural-gas-fired, combined-cycle cogeneration facility next to the existing BP Cherry Point Refinery in Whatcom County, Washington. The Applicant also owns and operates the refinery, but the cogeneration facility and the refinery would be operated as separate business units. The cogeneration facility and its ancillary infrastructure would provide steam and 85 MW of electricity to meet the operating needs of the refinery and 635 MW of electrical power for local and regional consumption. The proposed cogeneration facility would be located between Ferndale and Blaine in northwestern Whatcom County, Washington. The Canadian border is approximately 8 miles north of the proposed project site. The Washington State Energy Facility Site Evaluation Council (EFSEC) has jurisdiction over the evaluation of major energy facilities including the proposed project. As such, EFSEC will recommend approval or denial of the proposed cogeneration facility to the governor of Washington after an environmental review. On June 3, 2002, the Applicant filed an Application for Site Certification (ASC No. 2002-01) with EFSEC in accordance with Washington Administrative Code (WAC) 463-42. On April 22, 2003, the Applicant submitted an amended ASC that included, among other things, a change from air to water cooling. With the submission of the ASC and in accordance with the State Environmental Policy Act (SEPA) (WAC 463-47), EFSEC is evaluating the siting of the proposed project and conducting an environmental review with this Environmental Impact Statement (EIS). Because the proposed project requires federal agency approvals and permits, this EIS is intended to meet the requirements under both SEPA and the National Environmental Policy Act (NEPA). The Bonneville Power Administration (Bonneville) and U.S. Army Corps of Engineers (Corps) also will use this EIS as part of their respective decision-making processes associated with the Applicant's request to interconnect to Bonneville's transmission system and proposed location of the project within wetland areas. Therefore, this Draft EIS serves as the environmental review document for SEPA and for NEPA as required by Bonneville for the interconnection and the Corps for its 404 individual permit. The EIS addresses direct, indirect, and cumulative impacts of the proposed project, and potential mitigation measures proposed by the Applicant, as well as measures recommended by EFSEC. The information and resulting analysis presented in this Draft EIS are based primarily on information provided by the Applicant in the ASC No. 2002-01 (BP 2002). Where additional information was used to evaluate the potential impacts associated with the proposed action, that information has been referenced. EFSEC's environmental consultant, Shapiro and Associates, Inc., did not perform additional studies during the preparation of this Draft EIS.

  4. Energy conservation and thermal comfort in buildings in northern Pakistan

    E-Print Network [OSTI]

    Sullivan, Gregory Patrick

    1995-01-01

    The Hunza Valley, a remote area of mountainous northern Pakistan, is undergoing rapid change culturally, socially, and architecturally. Many of these changes are linked to the exchange of information and commerce facilitated ...

  5. Individual User Behavior Leading Factor in Comfort Control 

    E-Print Network [OSTI]

    Zeiler, W.; Boxem, G.; Van Houten, M. A.; Wortel, W.; Van Der Velden, J. A. J.; Kamphuis, R.; Hommelberg, M.; Broekhuizen, H.

    2008-01-01

    for the utilization of existing external potential. This ICT architecture must be designed with in mind a specific system-wide optimal viewpoint, for example energy saving, but at the same hand look at the needs of local actors in the system. This demands a... multi-actor coordination, which optimizes global system strategies, in connection with the local interests. The ICT-infrastructure needed to fulfill these requirements must be flexible, open and extensible and take into account stakes on the global...

  6. Computers, ergonomics and schools: are you sitting comfortably

    E-Print Network [OSTI]

    Banks, Lorna F.

    1991-01-01

    Much research has been done for commercial reasons on workstation design, but are schools taking notice? Are ergonomic factors taken into account when designing a space for computer use within school? Are the computers integrated throughout...

  7. Using air movement for comfort during moderate exercise

    E-Print Network [OSTI]

    Zhai, Yongchao; Elsworth, Christopher; Zhang, Hui; Arens, Edward; Zhang, Yufeng; Zhao, Lihua

    2015-01-01

    3] ISO7730-2005. Ergonomics of the thermal environment–Journal of Industrial Ergonomics 18 (1996) 295–305. [10]B.and workload. Applied Ergonomics 32 (2001) 407–417. [11

  8. Using Footwarmers in Offices for Thermal Comfort and Energy Savings

    E-Print Network [OSTI]

    2015-01-01

    JE, Parsons KC. An ergonomics investigation into humancarbonized fabric (ECF). Ergonomics [18] Pasut W, Zhang H,ambient temperature range, Ergonomics, 2007, 50 (4):586 –

  9. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    on ambient temperature, Ergonomics, 2007, Vol. 50, No. 4,on Environmental Ergonomics 2009, August. Humphreys, M.A. (

  10. Mechanism of Thermal Comfort and Its Application in Indoor Environment 

    E-Print Network [OSTI]

    Lian, Z.; Liu, W.; Ye, X.; Ye, Y.

    2006-01-01

    -70% and air velocity was maintained at 0.2m/s during the experiment. The range of ambient temperature is from 16 to 34 . We measured the peak value of electric current of metabolite of dopamine (3,4-dihydroxyphenylacetic acid, DOPAC) in PO.... Differences were considered statistically significant as Pambient temperature resulted in the fluctuation of DOPAC. Since...

  11. Using Dashboards to Improve Energy and Comfort in Federal Buildings

    E-Print Network [OSTI]

    Marini, Kyle

    2011-01-01

    gases (GHG) or carbon footprint, and public education onand lowering the carbon footprint or GHG emissions forby reducing carbon footprint. • Compare buildings’ energy

  12. Progress in thermal comfort research over the last twenty years

    E-Print Network [OSTI]

    2013-01-01

    398. USGBC (2009) Green Building Design and Construction:Reference Guide for Green Building Design and Construction,Technical manual: Green Star Office Design and Office as

  13. Using air movement for comfort during moderate exercise

    E-Print Network [OSTI]

    Zhai, Yongchao; Elsworth, Christopher; Zhang, Hui; Arens, Edward; Zhang, Yufeng; Zhao, Lihua

    2015-01-01

    2005. Ergonomics of the thermal environment–AnalyticalPerception of the thermal environment in sports facilitiesair quality and the thermal environment, Proceedings of IAQ

  14. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    caused by office's thermal Environment, J. Archit. Plann.Standard 55- 2010. Thermal environment conditions for humanindoor air quality, thermal environment, lighting and

  15. Optimizing HVAC Control to Improve Building Comfort and Energy Performance 

    E-Print Network [OSTI]

    Song, L.; Joo, I.; Dong, D.; Liu, M.; Wang, J.; Hansen, K.; Quiroz, L.; Swiatek, A.

    2003-01-01

    include a terminal box temperature integrated minimum airflow reset. The building has been used and operated based on the design intents. This paper presents both the existing and the optimal control schedules, which include the VAV box operation schedule...

  16. When Are Users Comfortable Sharing Locations with Advertisers?

    E-Print Network [OSTI]

    leading this push by allowing small businesses and national chains (e.g., Starbucks) to offer recurring

  17. EECBG Success Story: Grant Improves Comfort for Nevada City's...

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

    depot. There was just one problem: it was built before central heating or air-conditioning. Learn more. Addthis Related Articles Metal halide light fixtures at Pompey Park...

  18. Technology Solutions Case Study: Overcoming Comfort Issues Due...

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

    Issues Due to Reduced Flow Room Air Mixing Energy efficiency upgrades reduce heating and cooling loads on a house. With enough load reduction and if the heating, ventilating, and...

  19. Urban Form, Wind, Comfort, and Sustainability: The San Francisco Experience

    E-Print Network [OSTI]

    Kim, Hyungkoo

    2014-01-01

    sustainable transportation modes. 2.2 Vernacular Urban Form and Historical Attempts Vernacular settlements and architecture

  20. The skin's role in human thermoregulation and comfort

    E-Print Network [OSTI]

    Arens, Edward A; Zhang, H.

    2006-01-01

    with sensory organs in the hypothalamus (within the brain),within the anterior hypothalamus sense the core temperatureit. The anterior hypothalamus’s warm sensors outnumber its