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1

NREL-Optimizing Rooftop Space with SolOpt Presentation | 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 Office of InspectorConcentrating Solar Powerstories onFocus AreaDataBus Jump to: navigation,Course

2

NOVA-NREL Optimal Vehicle Acquisition Analysis (Brochure)  

SciTech Connect (OSTI)

Federal fleet managers face unique challenges in accomplishing their mission - meeting agency transportation needs while complying with Federal goals and mandates. Included in these challenges are a variety of statutory requirements, executive orders, and internal goals and objectives that typically focus on petroleum consumption and greenhouse gas (GHG) emissions reductions, alternative fuel vehicle (AFV) acquisitions, and alternative fuel use increases. Given the large number of mandates affecting Federal fleets and the challenges faced by all fleet managers in executing day-to-day operations, a primary challenge for agencies and other organizations is ensuring that they are as efficient as possible in using constrained fleet budgets. An NREL Optimal Vehicle Acquisition (NOVA) analysis makes use of a mathematical model with a variety of fleet-related data to create an optimal vehicle acquisition strategy for a given goal, such as petroleum or GHG reduction. The analysis can helps fleets develop a vehicle acquisition strategy that maximizes petroleum and greenhouse gas reductions.

Blakley, H.

2011-03-01T23:59:59.000Z

3

Rooftop Photovoltaics Market Penetration Scenarios  

SciTech Connect (OSTI)

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

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

2008-02-01T23:59:59.000Z

4

Photovoltaic array with minimally penetrating rooftop support system  

DOE Patents [OSTI]

A photovoltaic array including a plurality of photovoltaic assemblies and a plurality of mounting units. The mounting units each include an elongate rail and a plurality of leg assemblies. The rail is sized and configured to maintain a portion of at least two of the photovoltaic assemblies, with the leg assemblies extending from the rail in a spaced-apart fashion and terminating in a foot for placement against a rooftop structure for minimally penetration installation. Further, at least one of the leg assemblies can include a retractable leg. When the photovoltaic array is installed to a rooftop structure including a membrane intermittently secured to a rooftop deck, the retractable leg accommodates upward billowing of the membrane under windy conditions.

Lenox, Carl J.S.

2012-10-23T23:59:59.000Z

5

SunShot Rooftop Challenge Awardees  

Broader source: Energy.gov [DOE]

Awardees, partners, award amounts, estimated population, and project descriptions for the 2011 SunShot Rooftop Challenge.

6

Department of Veterans Affairs, FONSI - Rooftop solar PV power...  

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

Rooftop solar PV power at Calverton National Cemetery Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery An Environmental Assessment (EA)...

7

Solar access of residential rooftops in four California cities  

E-Print Network [OSTI]

rooftops in four California cities Solar access ofcomputed. Solar access violation California Public ResourcesSolar access of residential rooftops in four California

Levinson, Ronnen

2010-01-01T23:59:59.000Z

8

Solar Congeneration for Commercial Rooftops  

E-Print Network [OSTI]

Solar Cogeneration for Commercial Rooftops Arun Gupta, PhD agupta@skyentechnologies.com ESL-KT-13-12-36 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Introduction What is Solar Cogeneration? ? Fun fact...: Typical photovoltaic (PV) solar panels waste roughly 85% of their energy as heat ? Q: Why not capture that heat and use it to heat water? What is Concentrating Solar? ? Using mirrors or lenses to concentrate sunlight ? Why? Less PV material, higher...

Gupta, A.

2013-01-01T23:59:59.000Z

9

DEVELOPMENT OF A HYDRONIC ROOFTOP UNIT -- HYPAK  

SciTech Connect (OSTI)

The majority of US commercial floor space is cooled by rooftop HVAC units (RTU's). RTU popularity derives chiefly from their low initial cost and relative ease of service access without disturbing building occupants. Unfortunately, current RTU's are inherently inefficient due to a combination of characteristics that unnecessarily increase cooling loads and energy use. Existing RTU's in the U.S. consume an estimated 2.4 quads annually. Inefficient RTU's create an estimated 3.5% of U.S. CO{sub 2} emissions, thus contributing significantly to global warming. Also, RTU's often fail to maintain adequate ventilation air and air filtration. This project was developed to evaluate the feasibility of a radically new ''HyPak'' RTU design that significantly and cost-effectively increases RTU performance and delivered air quality. The objective of the HyPak Project was to design, develop and test a hydronic RTU that provides a quantum improvement over conventional RTU performance. Our proposal targeted 60% and 50% reduction in electrical energy use by the HyPak RTU for dry and humid climates, respectively, when compared with a conventional unit.

Eric Lee; Dick Bourne; Mark Berman

2004-03-25T23:59:59.000Z

10

Washington: Putting More Solar on More Rooftops in Washington...  

Energy Savers [EERE]

Putting More Solar on More Rooftops in Washington State Washington: Putting More Solar on More Rooftops in Washington State November 8, 2013 - 12:00am Addthis EERE SunShot...

11

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners  

E-Print Network [OSTI]

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners John Shugars, Consultant ofcommercialpackaged air conditioners, explore the reasons behindthis efficiency gap, and assess opportunities). Although sales of rooftop air conditioners have steadily increased over the past decade, the efficiency

12

Better Buildings Alliance, Advanced Rooftop Unit Campaign: Rooftop Unit Measurement and Verification (Fact Sheet)  

SciTech Connect (OSTI)

This document provides facility managers and building owners an introduction to measurement and verification (M&V) methods to estimate energy and cost savings of rooftop units replacement or retrofit projects to estimate paybacks or to justify future projects.

Not Available

2014-09-01T23:59:59.000Z

13

Structural Code Considerations for Solar Rooftop Installations.  

SciTech Connect (OSTI)

Residential rooftop solar panel installations are limited in part by the high cost of structural related code requirements for field installation. Permitting solar installations is difficult because there is a belief among residential permitting authorities that typical residential rooftops may be structurally inadequate to support the additional load associated with a photovoltaic (PV) solar installation. Typical engineering methods utilized to calculate stresses on a roof structure involve simplifying assumptions that render a complex non-linear structure to a basic determinate beam. This method of analysis neglects the composite action of the entire roof structure, yielding a conservative analysis based on a rafter or top chord of a truss. Consequently, the analysis can result in an overly conservative structural analysis. A literature review was conducted to gain a better understanding of the conservative nature of the regulations and codes governing residential construction and the associated structural system calculations.

Dwyer, Stephen F.; Dwyer, Brian P.; Sanchez, Alfred

2014-12-01T23:59:59.000Z

14

Energy Department Loan Guarantee Would Support Large-Scale Rooftop...  

Energy Savers [EERE]

the solar industry." The project, which could create up to 371 megawatts of new solar capacity, includes the installation of residential rooftop PV systems on existing privatized...

15

SunShot Rooftop Challenge Awardees | Department of Energy  

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

SUNSHOT ROOFTOP SOLAR CHALLENGE December 1, 2011 Awardee Name Location Population Estimate Award Amount Project Highlights Arizona Governor's Office of Energy Policy City of...

16

active desiccant rooftop: Topics by E-print Network  

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

Websites Summary: 2014 Keywords: Solar city Photovoltaics Built environment Solar energy Peak shaving Urban solar deployment of rooftop-based distributed photovoltaic systems....

17

Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review...  

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

Innovation) This project aims to develop and validate cost-effective methods for rooftop air conditioning unit (RTU) coordination and diagnostics in small commercial buildings. To...

18

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and...  

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

- 2013 BTO Peer Review Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Commercial Buildings...

19

Rooftop Solar Challenge | Department of Energy  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15,2015DepartmentDepartment ofSoft Costs » Rooftop Solar Challenge

20

Design & Engineering Services AIRMAX HYBRID ROOFTOP UNIT PERFORMANCE: WESTERN  

E-Print Network [OSTI]

Design & Engineering Services AIRMAX HYBRID ROOFTOP UNIT PERFORMANCE: WESTERN COOLING CHALLENGE of California, Davis For: Design & Engineering Services Customer Service Business Unit Southern California Edison December 2, 2011 #12;HT.10.SCE.232 Southern California Edison Design & Engineering Services

California at Davis, University of

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


21

Design & Engineering Services SPEAKMAN HYBRID ROOFTOP UNIT PERFORMANCE  

E-Print Network [OSTI]

Design & Engineering Services SPEAKMAN HYBRID ROOFTOP UNIT PERFORMANCE: WESTERN COOLING CHALLENGE of California, Davis For: Design & Engineering Services Customer Service Business Unit Southern California Edison December 2, 2011 #12;HT.10.SCE.232 Southern California Edison Design & Engineering Services

California at Davis, University of

22

LA Rooftop Solar Project Goes Online in San Fernando Valley ...  

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

Incentive Programs, Florida SunShot Rooftop Challenge Awardees The California Valley Solar Ranch has a capacity of 250 MW -- enough energy to power the equivalent of every home...

23

Development of a Hydronic Rooftop Unit-HyPak-MA  

SciTech Connect (OSTI)

The majority of U.S. commercial floor space is cooled by rooftop HVAC units (RTUs). RTU popularity derives chiefly from their low initial cost and relative ease of service access without disturbing building occupants. Unfortunately, current RTUs are inherently inefficient due to a combination of characteristics that unnecessarily increase cooling loads and energy use. 36% percent of annual U.S. energy, and two-thirds of electricity, is consumed in and by buildings. Commercial buildings consume approximately 4.2 quads of energy each year at a cost of $230 billion per year, with HVAC equipment consuming 1.2 quads of electricity. More than half of all U.S. commercial floor space is cooled by packaged HVAC units, most of which are rooftop units (RTUs). Inefficient RTUs create an estimated 3.5% of U.S. CO{sub 2} emissions, thus contributing significantly to global warming5. Also, RTUs often fail to maintain adequate ventilation air and air filtration, reducing indoor air quality. This is the second HyPak project to be supported by DOE through NETL. The prior project, referred to as HyPak-1 in this report, had two rounds of prototype fabrication and testing as well as computer modeling and market research. The HyPak-1 prototypes demonstrated the high performance capabilities of the HyPak concept, but made it clear that further development was required to reduce heat exchanger cost and improve system reliability before HyPak commercialization can commence. The HyPak-1 prototypes were limited to about 25% ventilation air fraction, limiting performance and marketability. The current project is intended to develop a 'mixed-air' product that is capable of full 0-100% modulation in ventilation air fraction, hence it was referred to as HyPak-MA in the proposal. (For simplicity, the -MA has been dropped when referencing the current project.) The objective of the HyPak Project is to design, develop and test a hydronic RTU that provides a quantum improvement over conventional RTU performance. Our proposal targeted 60% and 50% reduction in electrical energy use by the HyPak RTU for dry and humid climates, respectively, when compared with a conventional unit, and reduction in peak energy consumption of 50% and 33% respectively. In addition to performance targets, our goal is to develop a production-ready design with durability, reliability and maintainability similar to air-cooled packaged equipment, and that can be commercialized immediately following the conclusion of this project.

Eric Lee; Mark Berman

2009-11-14T23:59:59.000Z

24

E-Print Network 3.0 - annual greening rooftops Sample Search...  

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

1.3. Green Roofs As Better Urban... . Figure 3 conceptually depicts a simplified surface energy balance for a generic green rooftop system... are a major cause for rooftop...

25

Modeling the U.S. Rooftop Photovoltaics Market  

SciTech Connect (OSTI)

Global rooftop PV markets are growing rapidly, fueled by a combination of declining PV prices and several policy-based incentives. The future growth, and size, of the rooftop market is highly dependent on continued PV cost reductions, financing options, net metering policy, carbon prices and future incentives. Several PV market penetration models, sharing a similar structure and methodology, have been developed over the last decade to quantify the impacts of these factors on market growth. This study uses a geospatially rich, bottom-up, PV market penetration model--the Solar Deployment Systems (SolarDS) model developed by the National Renewable Energy Laboratory--to explore key market and policy-based drivers for residential and commercial rooftop PV markets. The identified drivers include a range of options from traditional incentives, to attractive customer financing options, to net metering and carbon policy.

Drury, E.; Denholm, P.; Margolis, R.

2010-09-01T23:59:59.000Z

26

Rooftop Solar Potential Distributed Solar Power in NW  

E-Print Network [OSTI]

1 Rooftop Solar Potential Distributed Solar Power in NW Massoud Jourabchi June 2013 1 Renewables;3 Regional Growth In Solar Energy Consumption Solar consumption both Thermal and PV h b t d i i lhas been on steady increase since early 1990s. From 2000-2010 Solar PV grow at annual rate of 13% and solar thermal

27

Rooftop Solar Potential Distributed Solar Power in NW  

E-Print Network [OSTI]

6/19/2013 1 Rooftop Solar Potential Distributed Solar Power in NW Massoud Jourabchi June 2013 1 in 2012 4 #12;6/19/2013 3 Regional Growth In Solar Energy Consumption Solar consumption both Thermal and PV h b t d i i lhas been on steady increase since early 1990s. From 2000-2010 Solar PV grow

28

CREATING A SOLAR CITY Determining the Potential of Solar Rooftop  

E-Print Network [OSTI]

of Solar Rooftop Systems in the City of Newark Final Report Renewable Energy Applications for Delaware, AERCA Advisors ABBREVIATIONS BCR ­ Benefit Cost Ratios BIPV ­ Building Integrated Photovoltaics CEEP Portfolio Standard SREC ­ Solar Renewable Energy Credits TMY ­ Typical Meteorological Year #12;#12;TABLE

Delaware, University of

29

Rooftop Solar Challenge Round 1 | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeEnvironment,Institutes and Response Events ResponseRooftop Solar Challenge AwardSoft

30

Property:PotentialRooftopPVCapacity | 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 CenterFranconia, Virginia: Energy ResourcesLoadingPenobscotInformationPotentialOffshoreWindArea JumpPotentialRooftopPVCapacity Jump to:

31

Property:PotentialRooftopPVGeneration | 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 CenterFranconia, Virginia: Energy ResourcesLoadingPenobscotInformationPotentialOffshoreWindArea JumpPotentialRooftopPVCapacity Jump

32

Modeling and Analysis of Solar Radiation Potentials on Building Rooftops  

SciTech Connect (OSTI)

The active application of photovoltaic for electricity generation could effectively transform neighborhoods and commercial districts into small, localized power plants. This application, however, relies heavily on an accurate estimation of the amount of solar radiation that is available on individual building rooftops. While many solar energy maps exist at higher spatial resolution for concentrated solar energy applications, the data from these maps are not suitable for roof-mounted photovoltaic for several reasons, including lack of data at the appropriate spatial resolution and lack of integration of building-specific characteristics into the models used to generate the maps. To address this problem, we have developed a modeling framework for estimating solar radiation potentials on individual building rooftops that is suitable for utility-scale applications as well as building-specific applications. The framework uses light detection and ranging (LIDAR) data at approximately 1-meter horizontal resolution and 0.3-meter vertical resolution as input for modeling a large number of buildings quickly. One of the strengths of this framework is the ability to parallelize its implementation. Furthermore, the framework accounts for building specific characteristics, such as roof slope, roof aspect, and shadowing effects, that are critical to roof-mounted photovoltaic systems. The resulting data has helped us to identify the so-called solar panel sweet spots on individual building rooftops and obtain accurate statistics of the variation in solar radiation as a function of time of year and geographical location.

Omitaomu, Olufemi A [ORNL; Kodysh, Jeffrey B [ORNL; Bhaduri, Budhendra L [ORNL

2012-01-01T23:59:59.000Z

33

Rooftop PV system. Final technical progress report, Phase II  

SciTech Connect (OSTI)

Under this four-year PV:BONUS Program, ECD and United Solar are developing and demonstrating two new lightweight flexible building integrated Photovoltaic (BIPV) modules specifically designed as exact replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and address the even larger roofing replacement market. The modules are designed to be installed by roofing contractors without special training which minimizes the installation and balance of system costs. The modules will be fabricated from high-efficiency, multiple-junction a-Si alloy solar cells developed by ECD and United Solar. Under the Phase I Program, which ended in March 1994, we developed two different concept designs for rooftop PV modules: (1) the United Solar overlapping (asphalt shingle replacement) shingle-type modules and (2) the ECD metal roof-type modules. We also developed a plan for fabricating, testing and demonstrating these modules. Candidate demonstration sites for our rooftop PV modules were identified and preliminary engineering designs for these demonstrations were developed; a marketing study plan was also developed. The major objectives of the Phase II Program, which started in June 1994 was (1) to develop, test, and qualify these new rooftop modules; (2) to develop mechanical and electrical engineering specifications for the demonstration projects; and (3) to develop a marketing/commercialization plan.

NONE

1995-08-01T23:59:59.000Z

34

Frost Growth CFD Model of an Integrated Active Desiccant Rooftop Unit  

SciTech Connect (OSTI)

A frost growth model is incorporated into a Computational Fluid Dynamics (CFD) simulation of a heat pump by means of a user-defined function in FLUENT, a commercial CFD code. The transient model is applied to the outdoor section of an Integrated Active Desiccant Rooftop (IADR) unit in heating mode. IADR is a hybrid vapor compression and active desiccant unit capable of handling 100% outdoor air (dedicated outdoor air system) or as a total conditioning system, handling both outdoor air and space cooling or heating loads. The predicted increase in flow resistance and loss in heat transfer capacity due to frost build-up are compared to experimental pressure drop readings and thermal imaging. The purpose of this work is to develop a CFD model that is capable of predicting frost growth, an invaluable tool in evaluating the effectiveness of defrost-on-demand cycles.

Geoghegan, Patrick J [ORNL; Petrov, Andrei Y [ORNL; Vineyard, Edward Allan [ORNL; Zaltash, Abdolreza [ORNL; Linkous, Randall Lee [ORNL

2008-01-01T23:59:59.000Z

35

Measurement of the Equivalent Thermal Resistance of Rooftop Lawns in a Hot-Climate Wind Tunnel  

E-Print Network [OSTI]

rooftop lawn. A hot-climate wind tunnel experiment was carried out in order to obtain and analyze the heat and moisture transport in the rooftop lawn. Furthermore, a calculation with the energy conservation equation was carried out using the results...

Meng, Q.; Zhang, Y.; Zhang, L.

2006-01-01T23:59:59.000Z

36

Solar access of residential rooftops in four California cities  

SciTech Connect (OSTI)

Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better estimate power production and/or thermal collection by rooftop solar-energy equipment. It can also be considered when designing programs to plant shade trees. High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a well-treed 2.5-4 km{sup 2} residential neighborhood. On-hour shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Values in future years were determined by repeating these calculations after simulating tree growth. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels. For the subset of S+SW+W-facing planes on which solar equipment is commonly installed for maximum solar access, absolute light loss in spring, summer and fall peaked about two to four hours after sunrise and about two to four hours before sunset. The fraction of annual insolation lost to shading increased from 0.07-0.08 in the year of surface-height measurement to 0.11-0.14 after 30 years of tree growth. Only about 10% of this loss results from shading by trees and buildings in neighboring parcels.

Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin

2010-05-14T23:59:59.000Z

37

Rooftop Solar Challenge Award Winners | Department of Energy  

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 Delicious RankCombustion |Energy UsageAUDITVehicles »ExchangeDepartmentResolve to Save Energy This Year|Rooftop Solar

38

Next Generation Rooftop Unit - 2013 Peer Review | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergyDepartment of Energy Advanced Framing - Building AmericaWinnersRooftop

39

SunShot Rooftop Challenge Awardees | Department of Energy  

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 Office of Inspector GeneralDepartment of Energyof theRestoration at Young -Final Program forRegistrationSunShot Rooftop

40

Rooftop Membrane Temperature Reductions with Green Roof Technology in South-Central Texas  

E-Print Network [OSTI]

Early green roof cooling and energy reduction research in North America took place in Canada and the northern latitudes of the United States, where green roofs reduced rooftop temperatures by 70% to 90%. Less is known about green roof technology...

Dvorak, B.

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


41

A study of biological contaminants in rainwater collected from rooftops in Bryan and College Station Texas  

E-Print Network [OSTI]

This study was conducted to identify the presence of biological contaminants and the factors responsible for these contaminants in rainwater collected from rooftops of buildings in Bryan and College Station, Texas. Two main biological contaminants...

Vasudevan, Lakshmi Narasimhan

2002-01-01T23:59:59.000Z

42

Building-Integrated Photovoltaics (BIPV) in the Residential Section: An Analysis of Installed Rooftop Prices (Presentation)  

SciTech Connect (OSTI)

This powerpoint presentation to be presented at the World Renewable Energy Forum on May 17, 2012, in Denver, CO, discusses building-integrated photovoltaics (BIPV) in the residential section and includes an analysis of installed rooftop prices.

James, T.; Goodrich, A.; Woodhouse, M.; Margolis, R.; Ong, S.

2012-06-01T23:59:59.000Z

43

Testing and Economic Evaluation of a High Efficiency 10-ton Rooftop Air Conditioner  

E-Print Network [OSTI]

In 1993, the U.S. Environmental Protection Agency initiated a project to design, build and demonstrate a high efficiency commercial rooftop air conditioning unit. The unit was designed by Hibberd Consulting of Westminster, Colorado, and was built...

O'Neal, D. L.; Davis, M. A.

2006-11-09T23:59:59.000Z

44

Advanced Rooftop Control (ARC) Retrofit: Field-Test Results  

SciTech Connect (OSTI)

The multi-year research study was initiated to find solutions to improve packaged equipment operating efficiency in the field. Pacific Northwest National Laboratory (PNNL), with funding from the U.S. Department of Energys (DOEs) Building Technologies Office (BTO) and Bonneville Power Administration (BPA) conducted this research, development and demonstration (RD&D) study. Packaged equipment with constant speed supply fans is designed to provide ventilation at the design rate at all times when the fan is operating as required by building code. Although there are a number of hours during the day when a building may not be fully occupied or the need for ventilation is lower than designed, the ventilation rate cannot be adjusted easily with a constant speed fan. Therefore, modulating the supply fan in conjunction with demand controlled ventilation (DCV) will not only reduce the coil energy but also reduce the fan energy. The objective of this multi-year research, development and demonstration project was to determine the magnitude of energy savings achievable by retrofitting existing packaged rooftop air conditioners with advanced control strategies not ordinarily used for packaged units. First, through detailed simulation analysis, it was shown that significant energy (between 24% and 35%) and cost savings (38%) from fan, cooling and heating energy consumption could be realized when packaged air conditioning units with gas furnaces are retrofitted with advanced control packages (combining multi-speed fan control, integrated economizer controls and DCV). The simulation analysis also showed significant savings for heat pumps (between 20% and 60%). The simulation analysis was followed by an extensive field test of a retrofittable advanced rooftop unit (RTU) controller.

Wang, Weimin; Katipamula, Srinivas; Ngo, Hung; Underhill, Ronald M.; Taasevigen, Danny J.; Lutes, Robert G.

2013-07-31T23:59:59.000Z

45

Field Test and Performance Verification: Integrated Active Desiccant Rooftop Hybrid System Installed in a School - Final Report: Phase 4A  

SciTech Connect (OSTI)

This report summarizes the results of a field verification pilot site investigation that involved the installation of a hybrid integrated active desiccant/vapor-compression rooftop heating, ventilation, and air-conditioning (HVAC) unit at an elementary school in the Atlanta Georgia area. For years, the school had experienced serious humidity and indoor air quality (IAQ) problems that had resulted in occupant complaints and microbial (mold) remediation. The outdoor air louvers of the original HVAC units had been closed in an attempt to improve humidity control within the space. The existing vapor compression variable air volume system was replaced by the integrated active desiccant rooftop (IADR) system that was described in detail in an Oak Ridge National Laboratory (ORNL) report published in 2004 (Fischer and Sand 2004). The IADR system and all space conditions have been monitored remotely for more than a year. The hybrid system was able to maintain both the space temperature and humidity as desired while delivering the outdoor air ventilation rate required by American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 62. The performance level of the IADR unit and the overall system energy efficiency was measured and found to be very high. A comprehensive IAQ investigation was completed by the Georgia Tech Research Institute before and after the system retrofit. Before-and-after data resulting from this investigation confirmed a significant improvement in IAQ, humidity control, and occupant comfort. These observations were reported by building occupants and are echoed in a letter to ORNL from the school district energy manager. The IADR system was easily retrofitted in place of the original rooftop system using a custom curb adapter. All work was completed in-house by the school's maintenance staff over one weekend. A subsequent cost analysis completed for the school district by the design engineer of record concluded that the IADR system being investigated was actually less expensive to install than other less-efficient options, most of which were unable to deliver the required ventilation while maintaining the desired space humidity levels.

Fischer, J

2005-12-21T23:59:59.000Z

46

Retrofitting Inefficient Rooftop Air-Conditioning Units Reduces U.S. Navy Energy Use (Fact Sheet)  

SciTech Connect (OSTI)

As part of the U.S. Navy's overall energy strategy, the National Renewable Energy Laboratory (NREL) partnered with the Naval Facilities Engineering Command (NAVFAC) to demonstrate market-ready energy efficiency measures, renewable energy generation, and energy systems integration. One such technology - retrofitting rooftop air-conditioning units with an advanced rooftop control system - was identified as a promising source for reducing energy use and costs, and can contribute to increasing energy security.

Not Available

2014-04-01T23:59:59.000Z

47

Field Demonstration of Active Desiccant Modules Designed to Integrate with Standard Unitary Rooftop Package Equipment - Final Report: Phase 3  

SciTech Connect (OSTI)

This report summarizes the investigation of two active desiccant module (ADM) pilot site installations initiated in 2001. Both pilot installations were retrofits at existing facilities served by conventional heating, ventilating, and air-conditioning (HVAC) systems that had encountered frequent humidity control, indoor air quality (IAQ), and other operational problems. Each installation involved combining a SEMCO, Inc., ADM (as described in Fischer and Sand 2002) with a standard packaged rooftop unit built by the Trane Company. A direct digital control (DDC) system integral to the ADM performed the dual function of controlling the ADM/rooftop combination and facilitating data collection, trending, and remote performance monitoring. The first installation involved providing preconditioned outdoor air to replace air exhausted from the large kitchen hood and bathrooms of a Hooters restaurant located in Rome, Georgia. This facility had previously added an additional rooftop unit in an attempt to achieve occupant comfort without success. The second involved conditioning the outdoor air delivered to each room of a wing of the Mountain Creek Inn at the Callaway Gardens resort. This hotel, designed in the ''motor lodge'' format with each room opening to the outdoors, is located in southwest Georgia. Controlling the space humidity always presented a serious challenge. Uncomfortable conditions and musty odors had caused many guests to request to move to other areas within the resort. This is the first field demonstration performed by Oak Ridge National Laboratory where significant energy savings, operating cost savings, and dramatically improved indoor environmental conditions can all be claimed as the results of a retrofit desiccant equipment field installation. The ADM/rooftop combination installed at the restaurant resulted in a reduction of about 34% in the electricity used by the building's air-conditioning system. This represents a reduction of approximately 15% in overall electrical energy consumption and a 12.5-kW reduction in peak demand. The cost of gas used for regeneration of the desiccant wheel over this period of time is estimated to be only $740, using a gas cost of $0.50 per therm--the summer rate in 2001. The estimated net savings is $5400 annually, resulting in a 1-2 year payback. It is likely that similar energy/cost savings were realized at the Callaway Gardens hotel. In this installation, however, a central plant supplied the chilled water serving fan coil units in the hotel wing retrofitted with the ADM, so it was not metered separately. Consequently, the owner could not provide actual energy consumption data specific to the facility. The energy and operating cost savings at both sites are directly attributable to higher cooling-season thermostat settings and decreased conventional system run times. These field installations were selected as an immediate and appropriate response to correct indoor humidity and fresh air ventilation problems being experienced by building occupants and owners, so no rigorous baseline-building vs. test-building energy use/operating cost savings results can be presented. The report presents several simulated comparisons between the ADM/roof HVAC approach and other equipment combinations, where both desiccant and conventional systems are modeled to provide comparable fresh air ventilation rates and indoor humidity levels. The results obtained from these simulations demonstrate convincingly the energy and operating cost savings obtainable with this hybrid desiccant/vapor-compression technology, verifying those actually seen at the pilot installations. The ADM approach is less expensive than conventional alternatives providing similar performance and indoor air quality and provides a very favorable payback (1 year or so) compared with oversized rooftop units that cannot be operated effectively with the necessary high outdoor air percentages.

Fischer, J

2004-03-15T23:59:59.000Z

48

DEVELOPMENT OF 20 IEER ROOFTOP UNITS A SIMULATION STUDY  

SciTech Connect (OSTI)

Based on detailed steady-state system and component modeling, we developed a rooftop unit system design, which is able to achieve IEER (Integrated Energy Efficiency Ratio) higher than 20. We modeled fin-&-tube and micro-channel heat exchangers using segment-to-segment approach, and use ARI 10-coefficient compressor map to simulate compressor performance. The system modeling is based on a component-based modeling approach, which facilitates flexible simulation of complicated system configurations. Starting with a baseline system having IEER of 16.6, we extensively investigated numerous technical options, i.e. varying compressor sizes, heat exchanger fin densities, fin-&-tube or micro-channel heat exchanger, suction line heat exchanger, desiccant wheel, tandem compressor, variable-speed compressor, and condenser evaporative pre-cooling; and developed an innovative system configuration combining a tandem compression system with a variable-speed compression system. The combined system can achieve high IEER as well as process the outdoor ventilation air over an extensive range. We successfully evaluated the design concept for a 20-ton unit as well as a 10-ton unit. All the selected components are readily accessible on the market, and we validated the performance predictions against existing RTU products at the rating condition. This paper illustrates a potentially cost-effective high IEER RTU design.

Shen, Bo [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL)

2012-01-01T23:59:59.000Z

49

Estimating Rooftop Suitability for PV: A Review of Methods, Patents, and Validation Techniques  

SciTech Connect (OSTI)

A number of methods have been developed using remote sensing data to estimate rooftop area suitable for the installation of photovoltaics (PV) at various geospatial resolutions. This report reviews the literature and patents on methods for estimating rooftop-area appropriate for PV, including constant-value methods, manual selection methods, and GIS-based methods. This report also presents NREL's proposed method for estimating suitable rooftop area for PV using Light Detection and Ranging (LiDAR) data in conjunction with a GIS model to predict areas with appropriate slope, orientation, and sunlight. NREL's method is validated against solar installation data from New Jersey, Colorado, and California to compare modeled results to actual on-the-ground measurements.

Melius, J.; Margolis, R.; Ong, S.

2013-12-01T23:59:59.000Z

50

Test plan : reducing soft costs of rooftop solar installations attributed to structural considerations.  

SciTech Connect (OSTI)

This test plan is a document that provides a systematic approach to the planned testing of rooftop structures to determine their actual load carrying capacity. This document identifies typical tests to be performed, the responsible parties for testing, the general feature of the tests, the testing approach, test deliverables, testing schedule, monitoring requirements, and environmental and safety compliance.

Dwyer, Stephen F.

2013-05-01T23:59:59.000Z

51

Building-Integrated Photovoltaics (BIPV) in the Residential Sector: An Analysis of Installed Rooftop System Prices  

SciTech Connect (OSTI)

For more than 30 years, there have been strong efforts to accelerate the deployment of solar-electric systems by developing photovoltaic (PV) products that are fully integrated with building materials. This report examines the status of building-integrated PV (BIPV), with a focus on the cost drivers of residential rooftop systems, and explores key opportunities and challenges in the marketplace.

James, T.; Goodrich, A.; Woodhouse, M.; Margolis, R.; Ong, S.

2011-11-01T23:59:59.000Z

52

Assessment of Rooftop Area in Austin Energy's Service Territory Suitable for PV Development  

Broader source: Energy.gov [DOE]

As part of the Solar America Cities program, Austin Energy proposed to perform an assessment of the rooftop area available for PV development within its service area. Austin Energy contracted with Clean Energy Associates (CEA) to perform the analysis. This report summarizes the project objectives, data sources and methodological approach employed, and results.

53

A 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS  

E-Print Network [OSTI]

A 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS D Walter-mounted system couples the benefits of distributed PV electricity generation with the on-site generation of thermal energy in a temperature range of 60 to 220 ºC. This is ideal for applications ranging from

54

Integration of Photovoltaics into Building Energy Usage through Advanced Control of Rooftop Unit  

SciTech Connect (OSTI)

This paper presents a computational approach to forecast photovoltaic (PV) power in kW based on a neural network linkage of publicly available cloud cover data and on-site solar irradiance sensor data. We also describe a control approach to utilize rooftop air conditioning units (RTUs) to support renewable integration. The PV forecasting method is validated using data from a rooftop PV panel installed on the Distributed Energy, Communications, and Controls (DECC) laboratory at Oak Ridge National Laboratory. The validation occurs in multiple phases to ensure that each component of the approach is the best representation of the actual expected output. The control of the RTU is based on model predictive methods.

Starke, Michael R [ORNL] [ORNL; Nutaro, James J [ORNL] [ORNL; Irminger, Philip [ORNL] [ORNL; Ollis, Benjamin [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Kuruganti, Phani Teja [ORNL] [ORNL; Fugate, David L [ORNL] [ORNL

2014-01-01T23:59:59.000Z

55

UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into Waste Heat Recovery for Usage by a Rooftop Greenhouse  

E-Print Network [OSTI]

into Waste Heat Recovery for Usage by a Rooftop Greenhouse Rohit Singla, Jeremy Lord, Jorden Hetherington Investigation into Waste Heat Recovery for Usage by a Rooftop Greenhouse April 4, 2013 Dr. Naoko Ellis APSC 262 of this waste heat recovery method. Constraints that are taken into this investigation include various factors

56

Sensitivity of Rooftop PV Projections in the SunShot Vision Study to Market Assumptions  

SciTech Connect (OSTI)

The SunShot Vision Study explored the potential growth of solar markets if solar prices decreased by about 75% from 2010 to 2020. The SolarDS model was used to simulate rooftop PV demand for this study, based on several PV market assumptions--future electricity rates, customer access to financing, and others--in addition to the SunShot PV price projections. This paper finds that modeled PV demand is highly sensitive to several non-price market assumptions, particularly PV financing parameters.

Drury, E.; Denholm, P.; Margolis, R.

2013-01-01T23:59:59.000Z

57

Development of a High Latent Effectiveness Energy Recovery Ventilator with Integration into Rooftop Package Equipment  

SciTech Connect (OSTI)

This Final Report covers the Cooperative Program carried out to design and optimize an enhanced flat-plate energy recovery ventilator and integrate it into a packaged unitary (rooftop) air conditioning unit. The project objective was to optimize the design of a flat plate energy recovery ventilator (ERV) core that compares favorably to flat plate air-to-air heat exchanger cores on the market and to cost wise to small enthalpy wheel devices. The benefits of an integrated unit incorporating an enhanced ERV core and a downsized heating/cooling unit were characterized and the design of an integrated unit considering performance and cost was optimized. Phase I was to develop and optimize the design of a membrane based heat exchanger core. Phase II was the creation and observation of a system integrated demonstrator unit consisting of the Enhanced Energy Recovery Ventilator (EERV) developed in Phase I coupled to a standard Carrier 50HJ rooftop packaged unitary air conditioning unit. Phase III was the optimization of the system prior to commercialization based on the knowledge gained in Phase II. To assure that the designs chosen have the possibility of meeting cost objectives, a preliminary manufacturability and production cost study was performed by the Center for Automation Technologies at RPI. Phase I also included a preliminary design for the integrated unit to be further developed in Phase II. This was to assure that the physical design of the heat exchanger designed in Phase I would be acceptable for use in Phase II. An extensive modeling program was performed by the Center for Building Performance & Diagnostics of CMU. Using EnergyPlus as the software, a typical office building with multiple system configurations in multiple climatic zones in the US was simulated. The performance of energy recovery technologies in packaged rooftop HVAC equipment was evaluated. The experimental program carried out in Phases II and III consisted of fabricating and testing a demonstrator unit using Carrier Comfort Network (CCN) based controls. Augmenting the control signals, CCN was also used to monitor and record additional performance data that supported modeling and conceptual understanding. The result of the testing showed that the EERV core developed in Phase I recovered energy in the demonstrator unit at the expected levels based on projections. In fact, at near-ARI conditions the core recovered about one ton of cooling enthalpy when operating with a three-ton rooftop packaged unit.

Gregory M. Dobbs; Norberto O. Lemcoff; Frederick J. Cogswell; Jeffrey T. Benolt

2006-03-01T23:59:59.000Z

58

Integration of Rooftop Photovoltaic Systems in St. Paul Ford Sites Redevelopment Plans  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFunInfrared Land SurfaceVirus-Infected MacaquesIntegration of Rooftop

59

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

SciTech Connect (OSTI)

Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a residential neighborhood of San Jose, CA, one of four regions analyzed in a wider study of the solar access of California homes.High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a 4 km2 residential neighborhood. Hourly shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels.In the year in which surface heights were measured (2005), shadows from all sources ("total shading") reduced the insolation received by S-, SW-, and W-facing residential roofing planes in the study area by 13 - 16percent. Shadows cast by trees and buildings in neighboring parcels reduced insolation by no more than 2percent. After 30 years of simulated maximal tree growth, annual total shading increased to 19 - 22percent, and annual extraparcel shading increased to 3 - 4percent.

Levinson, Ronnen M.; Gupta, Smita; Akbari, Hashem; Pomerantz, Melvin

2008-03-03T23:59:59.000Z

60

Concentrating Solar Panels: Bringing the Highest Power and Lowest Cost to the Rooftop  

SciTech Connect (OSTI)

Soliant Energy is a venture-capital-backed startup focused on bringing advanced concentrating solar panels to market. Our fundamental innovation is that we are the first company to develop a racking solar concentrator specifically for commercial rooftop applications, resulting in the lowest LCOE for rooftop electricity generation. Today, the commercial rooftop segment is the largest and fastest-growing market in the solar industry. Our concentrating panels can make a major contribution to the SAI's objectives: reducing the cost of solar electricity and rapidly deploying capacity. Our commercialization focus was re-shaped in 2009, shifting from an emphasis solely on panel efficiency to LCOE. Since the inception of the SAI program, LCOE has become the de facto standard for comparing commercial photovoltaic systems. While estimation and prediction models still differ, the emergence of performance-based incentive (PBI) and feed-in tariff (FIT) systems, as well as power purchase agreement (PPA) financing structures make LCOE the natural metric for photovoltaic systems. Soliant Energy has designed and demonstrated lower-cost, higher-power solar panels that consists of 6 (500X) PV module assemblies utilizing multi-junction cells and an integrated two-axis tracker. In addition, we have designed and demonstrated a prototype 1000X panel assembly with 8. Cost reductions relative to conventional flat panel PV systems were realized by (1) reducing the amount of costly semiconductor material and (2) developing strategies and processes to reduce the manufacturing costs of the entire system. Performance gains against conventional benchmarks were realized with (1) two-axis tracking and (2) higher-efficiency multi-junction PV cells capable of operating at a solar concentration ratio of 1000X (1000 kW/m2). The program objectives are: (1) Develop a tracking/concentrating solar module that has the same geometric form factor as a conventional flat, roof mounted photovoltaic (PV) panel - the Soliant module will produce more power and cost less than conventional panels of the same size; (2) Target LCOE: $0.079/kWh in 2010; (3) Target efficiency - 26% in 2010 (22% for 2008 prototype, 24% for 2009 pilot); and (4) Target performance - equivalent to 650Wp in 2010 (490W for 2008 prototype, 540W for 2009 pilot).

Michael Deck; Rick Russell

2010-01-05T23:59:59.000Z

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


61

Developing Market Opportunities for Flexible Rooftop Applications of PV Using Flexible CIGS Technology: Market Considerations  

SciTech Connect (OSTI)

There has been a recent upsurge in developments for building-integrated phototovoltaics (BiPV) roof top materials based on CIGS. Several new companies have increased their presence and are looking to bring products to market for this application in 2011. For roof-top application, there are significant key requirements beyond just having good conversion efficiency. Other attributes include lightweight, as well as moisture-proof, and fully functionally reliable. The companies bringing these new BIPV/BAPV products need to ensure functionality with a rigorous series of tests, and have an extensive set of 'torture' tests to validate the capability. There is a convergence of form, aesthetics, and physics to ensure that the CIGS BiPV deliver on their promises. This article will cover the developments in this segment of the BiPV market and delve into the specific tests and measurements needed to characterize the products. The potential market sizes are evaluated and the technical considerations developed.

Sabnani, L.; Skumanich, A.; Ryabova, E.; Noufi, R.

2011-01-01T23:59:59.000Z

62

Geographic Variation in Potential of Rooftop Residential Photovoltaic Electric Power Production in the United States  

Broader source: Energy.gov [DOE]

This paper describes a geographic evaluation of Zero Energy Home (ZEH) potential, specifically an assessment of residential roof-top solar electric photovoltaic (PV) performance around the United States and how energy produced would match up with very-efficient and super-efficient home designs. We performed annual simulations for 236 TMY2 data locations throughout the United States on two highly-efficient one-story 3-bedroom homes with a generic grid-tied solar electric 2kW PV system. These annual simulations show how potential annual solar electric power generation (kWh) and potential energy savings from PV power vary geographically around the U.S. giving the user in a specific region an indication of their expected PV system performance.

63

Development of 20 IEER Rooftop Units System Modeling and Building Energy Simulations  

SciTech Connect (OSTI)

Based on detailed steady-state system and component modeling, we developed a rooftop unit system design, which is able to achieve IEER (Integrated Energy Efficiency Ratio) higher than 20. We modeled fin-&-tube and micro-channel heat exchangers using segment-to-segment approach, and use AHRI 10-coefficient compressor map to simulate compressor performance. The system modeling is based on a component-based modeling approach, which facilitates flexible simulation of complicated system configurations. Starting with a baseline system having IEER of 16.6, we extensively investigated numerous technical options, i.e. varying compressor sizes, heat exchanger fin densities, fin-&-tube or micro-channel heat exchanger, suction line heat exchanger, desiccant wheel, tandem compressor, variable-speed compressor, and condenser evaporative pre-cooling; and developed an innovative system configuration combining a tandem compression system with a variable-speed compression system. The combined system can achieve high IEER as well as process the outdoor ventilation air over an extensive range. We successfully evaluated the design concept for a 20-ton (70.4 kW) unit as well as a 10-ton (35.2 kW) unit. All the selected components are readily accessible on the market, and we validated the performance predictions against existing Rooftop Unit (RTU) products at the rating condition. This paper illustrates a potentially cost-effective high IEER RTU design. In addtion, we conducted extensive building energy simulations using EnergyPlus to predict seasonal energy saving potentials and peak power reductions using the High IEER RTU in sixteen US cities, in comparison to a RTU with a minimum efficiency.

Shen, Bo [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL)

2013-01-01T23:59:59.000Z

64

RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration: Hawaii and Guam Energy Improvement Technology Demonstration Project  

SciTech Connect (OSTI)

As part of its overall strategy to meet its energy goals, the Naval Facilities Engineering Command (NAVFAC) partnered with U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to rapidly demonstrate and deploy cost-effective renewable energy and energy efficiency technologies. This was one of several demonstrations of new and underutilized commercial energy efficiency technologies. The consistent year-round demand for air conditioning and dehumidification in Hawaii provides an advantageous demonstration location for advanced rooftop control (ARC) retrofit kits to packaged rooftop units (RTUs). This report summarizes the field demonstration of ARCs installed on nine RTUs serving a 70,000-ft2 exchange store (large retail) and two RTUs, each serving small office buildings located on Joint Base Pearl Harbor-Hickam (JBPHH).

Doebber, I.; Dean, J.; Dominick, J.; Holland, G.

2014-03-01T23:59:59.000Z

65

A review of the solar city concept and methods to assess rooftop solar electric potential, with an illustrative application to the city of Seoul  

E-Print Network [OSTI]

Nam Kim b a Center for Energy and Environmental Policy (CEEP), 278 Graham Hall, University of Delaware 2014 Keywords: Solar city Photovoltaics Built environment Solar energy Peak shaving Urban solar potential Solar rooftop potential a b s t r a c t Energy economy restructuring at the city level

Delaware, University of

66

Field Demonstration of a High-Efficiency Packaged Rooftop Air Conditioning Unit at Fort Gordon, Augusta, GA  

SciTech Connect (OSTI)

As part of a larger program targeting the market transformation of packaged rooftop air conditioning, five high-efficiency rooftop air conditioning products were selected in 2002 by the U.S. Department of Energy (DOE) under the Unitary Air Conditioner (UAC) Technology Procurement (http://www.pnl.gov/uac). In February 2003, Fort Gordon in Augusta, Georgia was chosen as the demonstration site. With the goal of validating the field performance and operation of one of the awarded products, a 10-ton high-efficiency packaged rooftop unit (RTU) manufactured by Global Energy Group (GEG) was installed at Fort Gordon in October 2003. Following equipment installation, power metering, air- and refrigerant-side instrumentation was installed on the GEG RTU and a 4-year old typical-efficiency 20-ton RTU manufactured by AAON . The GEG and AAON units were instrumented identically and operated May through July, 2005, to observe performance under a range of conditions. Based on the data collected as part of this demonstration, the GEG equipment performed at least 8% better in stage-1 (single compressor running) cooling and at least 16% better in stage-2 (both compressors running) than the baseline AAON equipment. Performance comparisons are based on what we call application EER normalized to equivalent specific fan power. The full-load, specific-fan-power-normalized application EERs at ARI design conditions were 10.48 Btu/Wh for the GEG and 9.00 Btu/Wh for the baseline machine. With a cost premium of nearly 50%, and slightly higher maintenance costs, the life-cycle cost analysis shows that the GEG technology pays for itself--a positive net-present value (NPV)--only in climates and buildings with long cooling seasons. Manufacture of this equipment on a larger scale can be expected to reduce costs to the point where it is more broadly cost-effective. The assumed 10-ton baseline and new-technology unit costs are $3824.00 and $5525.00 respectively. If the new technology cost is assumed to drop as sales increase to $4674.50 for a 10-ton unit (i.e. the original cost difference is halved), the life-cycle costs improve. A grid of first cost, annual maintenance cost and electricity price is enumerated and the results presented in the report show the sensitivity of life cycle cost to these three financial parameters in each of eight different climates.

Armstrong, Peter R.; Sullivan, Gregory P.; Parker, Graham B.

2006-03-31T23:59:59.000Z

67

Space  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future |Carlos Valencia NamedPolicySowmyaSpace

68

Roof-top solar energy potential under performance-based building energy codes: The case of Spain  

SciTech Connect (OSTI)

The quantification at regional level of the amount of energy (for thermal uses and for electricity) that can be generated by using solar systems in buildings is hindered by the availability of data for roof area estimation. In this note, we build on an existing geo-referenced method for determining available roof area for solar facilities in Spain to produce a quantitative picture of the likely limits of roof-top solar energy. The installation of solar hot water systems (SHWS) and photovoltaic systems (PV) is considered. After satisfying up to 70% (if possible) of the service hot water demand in every municipality, PV systems are installed in the remaining roof area. Results show that, applying this performance-based criterion, SHWS would contribute up to 1662 ktoe/y of primary energy (or 68.5% of the total thermal-energy demand for service hot water), while PV systems would provide 10 T W h/y of electricity (or 4.0% of the total electricity demand). (author)

Izquierdo, Salvador; Montanes, Carlos; Dopazo, Cesar; Fueyo, Norberto [Fluid Mechanics Group, University of Zaragoza and LITEC (CSIC), Maria de Luna 3, 50018 Zaragoza (Spain)

2011-01-15T23:59:59.000Z

69

Performance and evaluation of gas-engine-driven rooftop air conditioning equipment at the Willow Grove Naval Air Station. Final report (revised October 21, 1996)  

SciTech Connect (OSTI)

The performance was evaluated of a new US cooling technology that has been installed for the first time at a federal facility. The technology is a 15-ton natural gas-engine-driven rooftop air conditioning unit made by Thermo King. Two units were installed to serve the Navy Exchange at Willow Grove. The savings potential at Willow Grove is described and that in the federal sector estimated. Conditions for implementation are discussed. In summary, the new technology is generally cost-effective at sites where marginal electricity cost (per MBtu at the meter) is more than 4 times the marginal gas cost (per MBtu at the meter) and annual full-load-equivalent cooling hours exceed 2,000.

Armstrong, P.R.; Katipamula, S.

1996-10-01T23:59:59.000Z

70

Rooftop package unit diagnostician  

DOE Patents [OSTI]

A diagnostic system for an HVAC system includes a number of sensors used to measure the operation of the HVAC system. Sensor readings are measured by timing the delay between when a strobe signal is sent to a sensor and when an interrupt signal from the sensor is received. A device driver used to measure the sensor readings stores the sensor readings in pseudo-character device files, which are universally accessible by different subsystems of the diagnostic system. Based on the readings from these sensors, this diagnostic system is able to determine the operational status of the HVAC system and if an economizer in the HVAC system is operating properly.

Chassin, David P [Pasco, WA; Pratt, Robert G [Kennewick, WA; Reid, Larry Dean [Benton City, WA

2004-08-17T23:59:59.000Z

71

Advanced Rooftop Unit Control  

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

Utility Resources News & Events Expand News & Events Skip navigation links Smart Grid Demand Response Energy Efficiency Emerging Technologies Current Research Portfolio...

72

Next Generation Rooftop Unit  

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 Office of Inspector General Office0-72.pdfGeorgeDoesn't32DepartmentWells |ofDepartment of Energy NextAtticsNext

73

Rooftop Unit Campaign  

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 RankCombustion | Department ofT ib l LPROJECTS IN7 Roadmap for Bioenergy and BiobasedofHow The

74

Rooftop Unit Network Project  

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 RankCombustion | Department ofT ib l LPROJECTS IN7 Roadmap for Bioenergy and BiobasedofHow TheNetwork Project

75

Advanced Rooftop Unit Control  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout the BuildingInnovation Portal AdvancedMethodsServices »

76

Performance and evaluation of gas engine driven rooftop air conditioning equipment at the Willow Grove (PA) Naval Air Station  

SciTech Connect (OSTI)

In a field evaluation conducted for the US Department of Energy (DOE) Office of Federal Energy Management Program (FEMP), the Pacific Northwest Laboratory (PNL) examined the performance of a new US energy-related technology under the FEMP Test Bed Demonstration Program. The technology was a 15-ton natural gas engine driven roof top air conditioning unit. Two such units were installed on a naval retail building to provide space conditioning to the building. Under the Test Bed Demonstration Program, private and public sector interests are focused to support the installation and evaluation of new US technologies in the federal sector. Participating in this effort under a Cooperative Research and Development Agreement (CRADA) with DOE were the American Gas Cooling Center, Philadelphia Electric Company, Thermo King Corporation, and the US Naval Air Station at Willow Grove, Pennsylvania. Equipment operating and service data as well as building interior and exterior conditions were secured for the 1992 cooling season. Based on a computer assessment of the building using standard weather data, a comparison was made with the energy and operating costs associated with the previous space conditioning system. Based on performance during the 1992 cooling season and adjusted to a normal weather year, the technology will save the site $6,000/yr in purchased energy costs. An additional $9,000 in savings due to electricity demand ratchet charge reductions will also be realized. Detailed information on the technology, the installation, and the results of the technology test are provided to illustrate the advantages to the federal sector of using this technology. A history of the CRADA development process is also reported.

Armstrong, P.R.; Conover, D.R.

1993-05-01T23:59:59.000Z

77

Rooftop Diagnostician - Energy Innovation Portal  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource ProgramEnergyMaterials: Sulfur K-edge

78

Space of Spaces  

E-Print Network [OSTI]

Wheeler emphasized the study of Superspace - the space of 3-geometries on a spatial manifold of fixed topology. This is a configuration space for GR; knowledge of configuration spaces is useful as regards dynamics and QM.In this Article I consider furthmore generalized configuration spaces to all levels within the conventional `equipped sets' paradigm of mathematical structure used in fundamental Theoretical Physics. This covers A) the more familiar issue of topology change in the sense of topological manifolds (tied to cobordisms), including via pinched manifolds. B) The less familiar issue of not regarding as fixed the yet deeper levels of structure: topological spaces themselves (and their metric space subcase), collections of subsets and sets. Isham has previously presented quantization schemes for a number of these. I consider some classical preliminaries for this program, aside from the most obvious (classical dynamics for each). Rather, I provide I) to all levels Relational and Background Independence criteria, which have Problem of Time facets as consequences. I demonstrate that many of these issues descend all the way down, whilst also documenting at which level the others cease to apply. II) Probability theory on configuration spaces. In fact such a stochastic treatment is how to further mathematize the hitherto fairly formal and sketchy subject of records theory (a type of formultion of quantum gravity). Along these lines I provide a number of further examples of records theories. This is in addition to Kendall's shape statistics being the example corresponding to relational mechanics models. To this example I now add 1) Cech cohomology, 2) Kendall's random sets, 3) the lattice of topologies on a fixed set. I finally consider 4) sheaves, both as a generalization of Cech cohomology and in connection to the study of stratified manifolds such as Superspace itself.

Edward Anderson

2014-11-30T23:59:59.000Z

79

Performance and evaluation of gas engine driven rooftop air conditioning equipment at the Willow Grove (PA) Naval Air Station. Interim report, 1992 cooling season  

SciTech Connect (OSTI)

In a field evaluation conducted for the US Department of Energy (DOE) Office of Federal Energy Management Program (FEMP), the Pacific Northwest Laboratory (PNL) examined the performance of a new US energy-related technology under the FEMP Test Bed Demonstration Program. The technology was a 15-ton natural gas engine driven roof top air conditioning unit. Two such units were installed on a naval retail building to provide space conditioning to the building. Under the Test Bed Demonstration Program, private and public sector interests are focused to support the installation and evaluation of new US technologies in the federal sector. Participating in this effort under a Cooperative Research and Development Agreement (CRADA) with DOE were the American Gas Cooling Center, Philadelphia Electric Company, Thermo King Corporation, and the US Naval Air Station at Willow Grove, Pennsylvania. Equipment operating and service data as well as building interior and exterior conditions were secured for the 1992 cooling season. Based on a computer assessment of the building using standard weather data, a comparison was made with the energy and operating costs associated with the previous space conditioning system. Based on performance during the 1992 cooling season and adjusted to a normal weather year, the technology will save the site $6,000/yr in purchased energy costs. An additional $9,000 in savings due to electricity demand ratchet charge reductions will also be realized. Detailed information on the technology, the installation, and the results of the technology test are provided to illustrate the advantages to the federal sector of using this technology. A history of the CRADA development process is also reported.

Armstrong, P.R.; Conover, D.R.

1993-05-01T23:59:59.000Z

80

Innovation Spaces  

E-Print Network [OSTI]

Innovation ecosystems today are the lifeblood or the great hope of many major economies, but at the heart of these ecosystems, there are places and spaces. Silicon Valley is not just a place, but a cluster of spaces where ...

Schneider-Sikorsky, Patrick A

2014-01-01T23:59:59.000Z

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


81

Space Kimchi  

E-Print Network [OSTI]

Broadcast Transcript: In space, no one can hear you scream... but did you know that in space no one can detect your smell either? The smell-taste connection means that food in space is not only weightless but tasteless, too. What's a flavor...

Hacker, Randi; Oborny, Jaimie; Tsutsui, William

2006-07-05T23:59:59.000Z

82

$?$--Rindler space  

E-Print Network [OSTI]

In this paper we construct, and investigate some thermal properties of, the non-commutative counterpart of Rindler space, which we call $\\kappa$--Rindler space. This space is obtained by changing variables in the defining commutators of $\\kappa$--Minkowski space. We then re-derive the commutator structure of $\\kappa$--Rindler space with the help of an appropriate star product, obtained from the $\\kappa$--Minkowski one. Using this star product, following the idea of Padmanabhan, we find the leading order, $1/\\kappa$ correction to the Hawking thermal spectrum.

J. Kowalski-Glikman

2009-07-18T23:59:59.000Z

83

Rooftop Unit Campaign | Department of Energy  

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 Office of Inspector GeneralDepartment of Energy fromCommentsRevolving Loan Funds Revolving LoanA l iSoft Costs

84

Next Generation Rooftop Unit | Department of Energy  

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 Office of Inspector General Office0-72.pdfGeorgeDoesn't32DepartmentWells |ofDepartment of EnergyEmerging

85

Sunshot Rooftop Solar Challenge | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomenthe House Committee on EnergyEnergy Secretary ChuAs much as half

86

Smart Solar Rooftops - Energy Innovation Portal  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment of Energy Smart Meters HelpSmart Solar

87

Next Generation Rooftop Unit | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S iPartnership Program |MillionNext GenerationNext GenerationNext

88

Space Nuclear  

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

Space Nuclear Today the INL is preparing to assist with the Multi-Mission RTG (MMRTG). The INL is assigned the final assembly and testing of the RTG for the project which is...

89

Space Sciences  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSChargeSpace Sciences Space

90

RESIDENTIAL ON SITE SOLAR HEATING SYSTEMS: A PROJECT EVALUATION USING THE CAPITAL ASSET PRICING MODEL  

E-Print Network [OSTI]

solar energy with rooftop panels, store excess energy in water storage tanks and can, in certain circumstances, provide 100% of the space heating

Schutz, Stephen Richard

2011-01-01T23:59:59.000Z

91

Space Videos  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future |Carlos ValenciaSpace Dust

92

Atmospheric Emitted Radiance Interferometer (AERI) Archived Data at the University of Wisconsin Space Science and Engineering Center (SSEC)  

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

The AERI instrument is an advanced version of the high spectral resolution interferometer sounder (HIS) designed and fabricated at the University of Wisconsin (Revercomb et al. 1988) to measure upwelling infrared radiances from an aircraft. The AERI is a fully automated ground-based passive infrared interferometer that measures downwelling atmospheric radiance from 3.3 - 18.2 mm (550 - 3000 cm-1) at less than 10-minute temporal resolution with a spectral resolution of one wavenumber. It has been used in DOEs Atmospheric Radiation Measurement (ARM) program. Much of the data available here at the Cooperative Institute for Meteorological Satellite Studies (CIMSS), an institute within the University of Wisconsins Space Science and Engineering Center, may also be available in the ARM Archive. On this website, data and images from six different field experiments are available, along with AERIPLUS realtime data for the Madison, Wisconsin location. Realtime data includes temperature and water vapor time-height cross sections, SKEWT diagrams, convective stability indices, and displays from a rooftop Lidar instrument. The field experiments took place in Oaklahoma and Wisconsin with the AERI prototype.

93

Contestation of Space  

E-Print Network [OSTI]

Volume 25, 2012 Contestation of Space A Photo Essay by Nuraoccurring in Ramallah between refugee and non-refugee space.Keywords: Divided spaces Introduction This study was

Alkhalili, Nura

2012-01-01T23:59:59.000Z

94

Competing for Shelf Space.  

E-Print Network [OSTI]

Retailers, and Shelf Space. Journal of Marketing, 26(3),Model for Optimizing Retail Space Allocations. ManagementMethods to Estimate Shelf Space Elasticities. Quant.

Martnez-de-Albniz, V.; Roels, G.

2007-01-01T23:59:59.000Z

95

3741SPACE AUDIT PROCEDURE Space audit  

E-Print Network [OSTI]

Page 1 3741SPACE AUDIT PROCEDURE Space audit identified to be conducted Will audit disrupt or disturb occupants of the space Notify Faculty, School or Business Unit of the audit Is the audit for timetabling purposes Is the audit a physical audit Confirm audit requirements Is the audit for other space

96

UNIVERSITY SPACE POLICY ALLOCATION OF UNIVERSITY SPACE  

E-Print Network [OSTI]

UNIVERSITY COLLEGE DUBLIN UNIVERSITY SPACE POLICY #12;ALLOCATION OF UNIVERSITY SPACE I Purpose To provide a methodology for the allocation of space across the University II Background Due to the university's success in attracting research funding, the need for space and facilities has grown

97

COMMERCIAL SPACE ACCOMPLISHMENTS Commercial Cargo Space Accomplishments  

E-Print Network [OSTI]

11/13/2013 COMMERCIAL SPACE ACCOMPLISHMENTS Commercial Cargo Space Accomplishments The Obama Administration's ambitious commercial space program, which has bipartisan support in Congress, has enabled NASA's successful partnership with two American companies now able to resupply the station - SpaceX and Orbital

Waliser, Duane E.

98

CRYSTALLOGRAPHIC POINT AND SPACE  

E-Print Network [OSTI]

CRYSTALLOGRAPHIC POINT AND SPACE GROUPS Andy Elvin June 10, 2013 #12;Contents Point and Space no reflection axes #12;Cube and Octahedron are dual Symmetries under Oh #12;Space Groups Subgroups of E(3) Point Group + Translation { R | 0 }{ E | t }a = { R | t }a = Ra + t 230 Space Groups 73 symmorphic space

California at Santa Cruz, University of

99

Definitions Numbered Space  

E-Print Network [OSTI]

Definitions · Numbered Space ­ a single space marked with a number and reserved for a single permit 24/7 · Unnumbered Space ­ a space which can be used by any customer allowed to park in that lot. High Low Average Question 4: If I buy a staff permit for an UNNUMBERED* space in a non-gated surface

Behmer, Spencer T.

100

Sculpting space through sound  

E-Print Network [OSTI]

How does one experience space? What kind of information do humans collect in the process of constructing space in their mind? How does one begin to understand volume, light, texture, material, smell and sense of space? The ...

Nakagawa, Junko, 1975-

2002-01-01T23:59:59.000Z

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


101

Space Solar Power Program  

SciTech Connect (OSTI)

Information pertaining to the Space Solar Power Program is presented on energy analysis; markets; overall development plan; organizational plan; environmental and safety issues; power systems; space transportation; space manufacturing, construction, operations; design examples; and finance.

Arif, H.; Barbosa, H.; Bardet, C.; Baroud, M.; Behar, A.; Berrier, K.; Berthe, P.; Bertrand, R.; Bibyk, I.; Bisson, J.; Bloch, L.; Bobadilla, G.; Bourque, D.; Bush, L.; Carandang, R.; Chiku, T.; Crosby, N.; De Seixas, M.; De Vries, J.; Doll, S.; Dufour, F.; Eckart, P.; Fahey, M.; Fenot, F.; Foeckersperger, S.; Fontaine, J.E.; Fowler, R.; Frey, H.; Fujio, H.; Gasa, J.M.; Gleave, J.; Godoe, J.; Green, I.; Haeberli, R.; Hanada, T.; Ha

1992-08-01T23:59:59.000Z

102

Quantum Complex Minkowski Space  

E-Print Network [OSTI]

The complex Minkowski phase space has the physical interpretation of the phase space of the scalar massive conformal particle. The aim of the paper is the construction and investigation of the quantum complex Minkowski space.

Grzegorz Jakimowicz; Anatol Odzijewicz

2005-05-06T23:59:59.000Z

103

Space Science and Applications  

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

1 Space Science and Applications Applying world-class expertise in space sciences and associated technologies to detect and characterize national security threats Contacts Group...

104

Space Shuttle Program Status  

E-Print Network [OSTI]

1 Space Shuttle Program Status John Casper Associate Manager Space Shuttle Program September 13, 2010 NAC Space Operations Committee #12;2 Operations #12;3 Flown Manifest March 2009 May 2010 #12, 2010 132nd Space Shuttle mission 32nd Flight of Atlantis (120,650,907 statute miles) 294 Total

Waliser, Duane E.

105

Space Complexity Algorithms & Complexity  

E-Print Network [OSTI]

Space Complexity Algorithms & Complexity Space Complexity Nicolas Stroppa Patrik Lambert - plambert@computing.dcu.ie CA313@Dublin City University. 2008-2009. December 4, 2008 #12;Space Complexity Hierarchy of problems #12;Space Complexity NP-intermediate Languages If P = NP, then are there languages which neither in P

Way, Andy

106

Space System Architecture  

E-Print Network [OSTI]

Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust II and III)

McManus, Dr. Hugh

107

In Outer Space without a Space Suit?  

E-Print Network [OSTI]

The author proposes and investigates his old idea - a living human in space without the encumbrance of a complex space suit. Only in this condition can biological humanity seriously attempt to colonize space because all planets of Solar system (except the Earth) do not have suitable atmospheres. Aside from the issue of temperature, a suitable partial pressure of oxygen is lacking. In this case the main problem is how to satiate human blood with oxygen and delete carbonic acid gas (carbon dioxide). The proposed system would enable a person to function in outer space without a space suit and, for a long time, without food. That is useful also in the Earth for sustaining working men in an otherwise deadly atmosphere laden with lethal particulates (in case of nuclear, chemical or biological war), in underground confined spaces without fresh air, under water or a top high mountains above a height that can sustain respiration.

Alexander Bolonkin

2008-06-24T23:59:59.000Z

108

Quotients of Metric Spaces  

E-Print Network [OSTI]

the properties of quotient spaces of metric spaces. We will use "iff" as an abbreviation for "if and only if". If f is a function from X onto Y, we will write f: X --->> Y....

Herman, Robert A.

1968-01-01T23:59:59.000Z

109

Ordered involutive operator spaces  

E-Print Network [OSTI]

This is a companion to recent papers of the authors; here we construct the `noncommutative Shilov boundary' of a (possibly nonunital) selfadjoint ordered space of Hilbert space operators. The morphisms in the universal property of the boundary preserve order. As an application, we consider `maximal' and `minimal' unitizations of such ordered operator spaces.

Blecher, David P; Neal, Matthew; Werner, Wend

2007-01-01T23:59:59.000Z

110

SPACE RESOURCES ROUNDTABLE IX  

E-Print Network [OSTI]

SPACE RESOURCES ROUNDTABLE IX Colorado School of Mines October 25-27, 2007 http://www.ISRUinfo.com Sponsored by: Colorado School of Mines Lunar and Planetary Institute Space Resources Roundtable, Inc. First Space Michael B. Duke, Colorado School of Mines Leslie Gertsch, University of Missouri-Rolla Alex

Rathbun, Julie A.

111

Conclusions Fractionated Space Systems  

E-Print Network [OSTI]

Conclusions Fractionated Space Systems There is a growing interest in fractionated space system design. Fractionated space systems are inherently flexible and modular. There are many key technologies of flexibility serves as a source of motivation for system designers to embed flexibility into a system design (i

de Weck, Olivier L.

112

TANK SPACE OPTIONS REPORT  

SciTech Connect (OSTI)

Since this report was originally issued in 2001, several options proposed for increasing double-shell tank (DST) storage space were implemented or are in the process of implementation. Changes to the single-shell tank (SST) waste retrieval schedule, completion of DST space saving options, and the DST space saving options in progress have delayed the projected shortfall of DST storage space from the 2007-2011 to the 2018-2025 timeframe (ORP-11242, River Protection Project System Plan). This report reevaluates options from Rev. 0 and includes evaluations of new options for alleviating projected restrictions on SST waste retrieval beginning in 2018 because of the lack of DST storage space.

WILLIS WL; AHRENDT MR

2009-08-11T23:59:59.000Z

113

Kant's hidden ontology of space  

E-Print Network [OSTI]

Verlag, Cassam, Quassim. Space and Objective Experience,John. World Enough and Space-Time (Cambridge, Massachusetts:On the Perception of Space [and Time], in The Cambridge

Messina, James Anthony

2011-01-01T23:59:59.000Z

114

Space Systems Finland 1 Deployment in the Space Sector  

E-Print Network [OSTI]

Space Systems Finland 1 Deployment in the Space Sector #12; Space Systems Finland 2 SW Constraints Design Requirements User Requirements SW Requirements #12; Space Systems Finland 3 The space, but there is no viable alternative Many requirements are not testable #12; Space Systems Finland 4 SSF OBJECTIVES

Southampton, University of

115

space for science, enterprise and environment Bringing Space Into School  

E-Print Network [OSTI]

space for science, enterprise and environment Bringing Space Into School Science The National Space Education Initiative #12;space for science, enterprise and environment National Space Education Initiative the consultations Recommendations of the report #12;space for science, enterprise and environment Background

116

Demonstrations of Integrated Advanced Rooftop Unit Controls and...  

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

energy and cost savings of more than 40% over the typical packaged air conditioners and heat pumps (with constant-speed supply fans) installed on commercial buildings. The...

117

Solar access of residential rooftops in four California cities  

E-Print Network [OSTI]

H. Akbari. Shade trees reduce building energy use and CO 2uence of tree shading on residential energy use for heatingestimates of tree-shade e?ects on residential energy use.

Levinson, Ronnen

2010-01-01T23:59:59.000Z

118

California Energy Commission "We have the largest rooftop solar  

E-Print Network [OSTI]

, the county installed a 1.18 MW photovoltaic system, a high efficiency chiller, a cool roof was so convenient and rewarding. One loan was for photovoltaic installations totaling 1.1 MW at six different county buildings. The other loan was for a 750 kW fuel cell co-generation plant at the Santa Rita

119

Solar access of residential rooftops in four California cities  

E-Print Network [OSTI]

solar-energy systems, including photovoltaic panels andsolar-energy systems, including photovoltaic panels and

Levinson, Ronnen

2010-01-01T23:59:59.000Z

120

Rooftop Unit and Autonomous Control and Communication for RTU...  

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

stores consume around 50% of the total store energy use. Often times the peak energy consumption of the refrigeration systems coincides with the peak demand for electricity as...

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


121

Rooftop Solar Challenge to Cut Solar's Red Tape | Department...  

Office of Environmental Management (EM)

are often complicated and vary from jurisdiction to jurisdiction. In order to make solar energy competitive with other types of energy, it will be critical to reduce these...

122

Doing Time Under the Sun: Rooftop Photovoltaics | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergy DOEDealingVehicle1 Guidanceflash2004-12.pdf Microsoft WordDoes

123

Department of Energy Commits Support for Landmark Rooftop Solar Project |  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA - U.S.Development Projects |ReserveGeothermalReduceforRadiationof

124

Washington: Putting More Solar on More Rooftops in Washington State |  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf The 2012NuclearBradley Nickell02-03 AUDITMotion |

125

Control and Diagnostics for Rooftop Units - 2014 BTO Peer Review |  

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:Year in Review: Top FiveDepartmentfor Engineering NewisSecurityPART IEnergy CyberDepartment of

126

Energy Department Finalizes Loan Guarantee for Transformational Rooftop  

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:Year in Review: TopEnergyIDIQBusiness Competition |StorageAbengoa BioenergyEnergy forSolar

127

Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun |  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource ProgramEnergyMaterials: Sulfur K-edgeDepartment of

128

Project Profile: Deployable Commercial Rooftop Solar Electric System |  

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 RankCombustion | Department ofT ib l L d FNEPA/309Department ofDepartmentProjectatChemicallyTransfer

129

Phoenix American Rooftop Solar Technologies | 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 CenterFranconia, Virginia: Energy ResourcesLoadingPenobscot County, Maine: Energy Resources2003) |Facility |Phillipston,Phoenicia,

130

Demonstrations of Integrated Advanced Rooftop Unit Controls and Automated  

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:Year in Review: TopEnergy DOEDealing With the Issues of NuclearHighStatement|DemonstrationFault

131

Unleashing Rooftop Solar Energy through More Efficient Government |  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research Petroleum ReserveDepartment ofEnergy, OfficeDepartmentof

132

Sandia National Laboratories: Evaluating Rooftop Strength for PV  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at Explora Museum On April 14, 2013,

133

Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar  

Broader source: Energy.gov [DOE]

Nestled in the mountains of northern Arizona and just 75 miles from Grand Canyon National Park, the city of Flagstaff, Ariz. is an ideal city for the Arizona Public Service (APS) to pilot a high concentration of solar photovoltaic energy systems.

134

Quantifying Rooftop Solar Power for the City of Waterloo, Ontario.  

E-Print Network [OSTI]

??Climate change, pollution, and energy security are driving a worldwide transition away from traditional fossil fuel generated electricity. As the world moves away from fossil (more)

MacDonald, Shawn W

2014-01-01T23:59:59.000Z

135

Quantum-Space Attacks  

E-Print Network [OSTI]

Theoretical quantum key distribution (QKD) protocols commonly rely on the use of qubits (quantum bits). In reality, however, due to practical limitations, the legitimate users are forced to employ a larger quantum (Hilbert) space, say a quhexit (quantum six-dimensional) space, or even a much larger quantum Hilbert space. Various specific attacks exploit of these limitations. Although security can still be proved in some very special cases, a general framework that considers such realistic QKD protocols, as well as} attacks on such protocols, is still missing. We describe a general method of attacking realistic QKD protocols, which we call the `quantum-space attack'. The description is based on assessing the enlarged quantum space actually used by a protocol, the `quantum space of the protocol'. We demonstrate these new methods by classifying various (known) recent attacks against several QKD schemes, and by analyzing a novel attack on interferometry-based QKD.

Ran Gelles; Tal Mor

2007-11-25T23:59:59.000Z

136

Gymnastics in Phase Space  

SciTech Connect (OSTI)

As accelerator technology advances, the requirements on accelerator beam quality become increasingly demanding. Facing these new demands, the topic of phase space gymnastics is becoming a new focus of accelerator physics R&D. In a phase space gymnastics, the beam's phase space distribution is manipulated and precision tailored to meet the required beam qualities. On the other hand, all realization of such gymnastics will have to obey accelerator physics principles as well as technological limitations. Recent examples of phase space gymnastics include Emittance exchanges, Phase space exchanges, Emittance partitioning, Seeded FELs and Microbunched beams. The emittance related topics of this list are reviewed in this report. The accelerator physics basis, the optics design principles that provide these phase space manipulations, and the possible applications of these gymnastics, are discussed. This fascinating new field promises to be a powerful tool of the future.

Chao, Alexander Wu; /SLAC

2012-03-01T23:59:59.000Z

137

Matter: Space without Time  

E-Print Network [OSTI]

While Quantum Gravity remains elusive and Quantum Field Theory retains the interpretational difficulties of Quantum Mechanics, we have introduced an alternate approach to the unification of particles, fields, space and time, suggesting that the concept of matter as space without time provides a framework which unifies matter with spacetime and in which we anticipate the development of complete theories (ideally a single unified theory) describing observed 'particles, charges, fields and forces' solely with the geometry of our matter-space-time universe.

Yousef Ghazi-Tabatabai

2012-11-19T23:59:59.000Z

138

Total Space Heat-  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Commercial Buildings Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration...

139

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings...

140

AB Space Engine  

E-Print Network [OSTI]

On 4 January 2007 the author published the article Wireless Transfer of Electricity in Outer Space in http://arxiv.org wherein he offered and researched a new revolutionary method of transferring electric energy in space. In that same article, he offered a new engine which produces a large thrust without throwing away large amounts of reaction mass (unlike the conventional rocket engine). In the current article, the author develops the theory of this kind of impulse engine and computes a sample project which shows the big possibilities opened by this new AB-Space Engine. The AB-Space Engine gets the energy from ground-mounted power; a planet electric station can transfer electricity up to 1000 millions (and more) of kilometers by plasma wires. Author shows that AB-Space Engine can produce thrust of 10 tons (and more). That can accelerate a space ship to some thousands of kilometers/second. AB-Space Engine has a staggering specific impulse owing to the very small mass expended. The AB-Space Engine reacts not by expulsion of its own mass (unlike rocket engine) but against the mass of its planet of origin (located perhaps a thousand of millions of kilometers away) through the magnetic field of its plasma cable. For creating this plasma cable the AB-Space Engine spends only some kg of hydrogen.

Alexander Bolonkin

2008-03-02T23:59:59.000Z

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


141

Beyond Space-Time  

E-Print Network [OSTI]

These notes, based on the remarks made at the 23 Solvay Conference, collect several speculative ideas concerning gauge/ strings duality, de Sitter spaces, dimensionality and the cosmological constant.

A. M. Polyakov

2006-02-01T23:59:59.000Z

142

Sounds and Space  

E-Print Network [OSTI]

the account I give (in section 1) of what sounds are and (in section 2) of the role of space in auditory perception....

Nudds, Matthew

143

Neutron Tomography and Space  

E-Print Network [OSTI]

Kevin Shields, Optimization of neutron tomography for rapidNEUTRON TOMOGRAPHY AND SPACE Hal Egbert, Ronald Walker, R.industrial applications[1]. Neutron Computed Tomography was

Egbert, Hal; Walker, Ronald; Flocchini, R.

2007-01-01T23:59:59.000Z

144

Space: the final frontier  

E-Print Network [OSTI]

Edited by Markus Eichhorn frontiers of biogeography 6.2,6596 Space: the final frontier Spatial Simulation: Exploringpoints in some places, but frontiers of biogeography 6.2,

Stoll, Peter

2014-01-01T23:59:59.000Z

145

Passive solar space heating  

SciTech Connect (OSTI)

An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

Balcomb, J.D.

1980-01-01T23:59:59.000Z

146

National Aeronautics and Space Administration International Space  

E-Print Network [OSTI]

sustainability and ensure their early incorporation in the architecture ­ Apply a phased approach to exploration Partnerships Strategy · NASA leadership of a sustainable and affordable human space exploration of many costs (not LCC) or obtain funding or resource offsets 2. Enhance sustainability thru interdependent

Waliser, Duane E.

147

National Aeronautical and Space Administration (NASA) Johnson...  

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

Aeronautical and Space Administration (NASA) Johnson Space Flight Center National Aeronautical and Space Administration (NASA) Johnson Space Flight Center Space Shuttle Endeavour,...

148

Atoms for space  

SciTech Connect (OSTI)

Nuclear technology offers many advantages in an expanded solar system space exploration program. These cover a range of possible applications such as power for spacecraft, lunar and planetary surfaces, and electric propulsion; rocket propulsion for lunar and Mars vehicles; space radiation protection; water and sewage treatment; space mining; process heat; medical isotopes; and self-luminous systems. In addition, space offers opportunities to perform scientific research and develop systems that can solve problems here on Earth. These might include fusion and antimatter research, using the Moon as a source of helium-3 fusion fuel, and manufacturing perfect fusion targets. In addition, nuclear technologies can be used to reduce risk and costs of the Space Exploration Initiative. 1 fig.

Buden, D.

1990-10-01T23:59:59.000Z

149

Space-QUEST: Experiments with quantum entanglement in space  

E-Print Network [OSTI]

The European Space Agency (ESA) has supported a range of studies in the field of quantum physics and quantum information science in space for several years, and consequently we have submitted the mission proposal Space-QUEST (Quantum Entanglement for Space Experiments) to the European Life and Physical Sciences in Space Program. We propose to perform space-to-ground quantum communication tests from the International Space Station (ISS). We present the proposed experiments in space as well as the design of a space based quantum communication payload.

Rupert Ursin; Thomas Jennewein; Johannes Kofler; Josep M. Perdigues; Luigi Cacciapuoti; Clovis J. de Matos; Markus Aspelmeyer; Alejandra Valencia; Thomas Scheidl; Alessandro Fedrizzi; Antonio Acin; Cesare Barbieri; Giuseppe Bianco; Caslav Brukner; Jose Capmany; Sergio Cova; Dirk Giggenbach; Walter Leeb; Robert H. Hadfield; Raymond Laflamme; Norbert Lutkenhaus; Gerard Milburn; Momtchil Peev; Timothy Ralph; John Rarity; Renato Renner; Etienne Samain; Nikolaos Solomos; Wolfgang Tittel; Juan P. Torres; Morio Toyoshima; Arturo Ortigosa-Blanch; Valerio Pruneri; Paolo Villoresi; Ian Walmsley; Gregor Weihs; Harald Weinfurter; Marek Zukowski; Anton Zeilinger

2008-06-05T23:59:59.000Z

150

Overview of Space Business Space & Integrated Defense Systems  

E-Print Network [OSTI]

Overview of Space Business Space & Integrated Defense Systems Mitsubishi Corporation August 26 in Rio de Janeiro and Belo Horizonte #12;MC's Space Business Involved with aerospace business more than 40 years, covering civil/commercial space business, defense related space business and defense

151

Spinorial space-time and privileged space direction (I)  

E-Print Network [OSTI]

Spinorial space-time and privileged space direction (I) Luis Gonzalez-Mestres Abstract Contrary of a privileged space direction are not strange phenomena from the point of view of fundamental space-time geometry. As already emphasized in our previous papers on the subject, the spinorial space-time we

Paris-Sud XI, Universit de

152

Space Robotic Capabilities David Kortenkamp (NASA Johnson Space Center)  

E-Print Network [OSTI]

Johnson Space Center Space Robotic Capabilities David Kortenkamp (NASA Johnson Space Center) Liam) David Wettergreen (Carnegie Mellon University) Dan Clancy (NASA Ames) #12;Johnson Space Center 12/18/2001 Space Robotics State-of-Art 2 ! Motivation Science Objectives Mission Concepts Robots Human

Kortenkamp, David

153

"Space Station" Theme: Learning to Work, and Live, in Space  

E-Print Network [OSTI]

"Space Station" IMAX Film Theme: Learning to Work, and Live, in Space The educational value of NASM visit and afterward. See the "Alignment with Standards" table for details regarding how "Space Station in the "Space Station" program: · How astronauts train · What it is like to live and work in Space aboard

Mathis, Wayne N.

154

3742SPACE ISSUES AND RESOLUTION PROCEDURE Space issue or  

E-Print Network [OSTI]

Page 1 3742SPACE ISSUES AND RESOLUTION PROCEDURE Space issue or conflict identified Do any of the strategies mitigate issue/conflict Complete Conflict Resolution Form Submit form to Space Management Office Space Management Office conduct issue/conflict analysis Space Management Office document possible

155

SPACE TECHNOLOGY Actual Estimate  

E-Print Network [OSTI]

SPACE TECHNOLOGY TECH-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY.6 29.5 29.5 29.5 29.5 29.5 29.5 Crosscutting Space Tech Development 120.4 187.7 293.8 272.1 266.6 259.7 247.0 Exploration Technology Development 144.6 189.9 202.0 215.5 215.7 214.5 216.5 Notional SPACE

156

Competing for Shelf Space.  

E-Print Network [OSTI]

the changes in supplier is wholesale price and pro?t, i =space despite their lower wholesale prices. Using a di?erentImpact of Manufacturers Wholesale Prices a on a Retailers

Martnez-de-Albniz, V.; Roels, G.

2007-01-01T23:59:59.000Z

157

Envisioning creative space  

E-Print Network [OSTI]

This thesis proposes a framework to articulate certain criteria in creative spatial productions such as architecture. I discuss that a conformist and unquestioning adaptation to conventional space conceptions limits ...

zkr, Mine, 1976-

1999-01-01T23:59:59.000Z

158

Hyper Space Complex Number  

E-Print Network [OSTI]

A new kind of numbers called Hyper Space Complex Numbers and its algebras are defined and proved. It is with good properties as the classic Complex Numbers, such as expressed in coordinates, triangular and exponent forms and following the associative and commutative laws of addition and multiplication. So the classic Complex Number is developed from in complex plane with two dimensions to in complex space with N dimensions and the number system is enlarged also.

Shanguang Tan

2007-04-23T23:59:59.000Z

159

Space Physics at UNH FROM THE DAWN OF SPACE EXPLORATION, UNH space scientists, engineers, and  

E-Print Network [OSTI]

Space Physics at UNH FROM THE DAWN OF SPACE EXPLORATION, UNH space scientists, engineers, and students in the Institute for the Study of Earth, Oceans, and Space (EOS) have worked on mission design and modeling. The Space Science Center, housed at EOS, is engaged in research and graduate education in all

Pringle, James "Jamie"

160

China's Space Robotic Arms Programs  

E-Print Network [OSTI]

Blog, Gen. Chilton on a Space Weapons Treaty, October 30,archive/2076/general-chilton-on-a-space-weapons-treaty. 31on the military use of space, see Kevin Pollpeter, Chinas

POLLPETER, Kevin

2013-01-01T23:59:59.000Z

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


161

Space Instrument Realization (ISR-5)  

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

5 Space Instrument Realization Providing expertise to support the design and fabrication of space-based custom instrumentation Contacts Group Leader Amy Regan Email Staff...

162

Quantization of empty space  

E-Print Network [OSTI]

We suggest to use "minimal" choice of quantum gravity theory, that is the quantum field theory, in which space-time is seen as Riemannian space and metric (or vierbein field) is the dynamical variable. We then suggest to use the simplest acceptable action, that is the squared curvature action. The correspondent model is renormalizable, has the correct classical limit without matter and can be explored using Euclidian path integral formalism. In order to get nonperturbative results one has to put this model on the lattice. While doing so serious problems with measure over dynamical variables are encountered, which were not solved until present. We suggest to solve them using the representation of Riemannian space as a limiting case of Riemann - Cartan space, where the Poincare group connection plays the role of dynamical variable. We construct manifestly gauge invariant discretization of Riemann - Cartan space. Lattice realization of Poincare gauge transformation naturally acts on the dynamical variables of the constructed discretization. There exists local measure invariant under this gauge transformation, which could be used as a basic element of lattice path integral methods. The correspondent lattice model appears to be useful for numerical simulations.

M. A. Zubkov

2005-11-02T23:59:59.000Z

163

3740SPACE REPURPOSING PROCEDURE Client identifies  

E-Print Network [OSTI]

Page 1 3740SPACE REPURPOSING PROCEDURE Client identifies space repurposing requirement Client completes space request form Submit space request form to Space Management Office Space Management Office acknowledge reciept Is space form completed accurately Space Management Office conduct space analysis Does

164

Nonlinear classification of Banach spaces  

E-Print Network [OSTI]

Hilbert space when p> 2. We then build upon the method of this proof to show that a quasi-Banach space coarsely embeds into a Hilbert space if and only if it is isomorphic to a subspace of L0(??) for some probability space (?,B,??)....

Randrianarivony, Nirina Lovasoa

2005-11-01T23:59:59.000Z

165

The NASA Food Commercial Space  

E-Print Network [OSTI]

The NASA Food Technology Commercial Space Center and How Your Company Can Participate space Commercial Space Center Iowa State University 2901 South Loop Drive, Suite 3700 Ames, IA 50010-8632 Phone Manager NASA Food Technology Commercial Space Center Iowa State University 2901 South Loop Drive, Suite

Lin, Zhiqun

166

Representation of noncommutative phase space  

E-Print Network [OSTI]

The representations of the algebra of coordinates and momenta of noncommutative phase space are given. We study, as an example, the harmonic oscillator in noncommutative space of any dimension. Finally the map of Sch$\\ddot{o}$dinger equation from noncommutative space to commutative space is obtained.

Kang Li; Jianhua Wang; Chiyi Chen

2005-08-16T23:59:59.000Z

167

Fuzzy Space-Time  

E-Print Network [OSTI]

A review is made of recent efforts to define linear connections and their corresponding curvature within the context of noncommutative geometry. As an application it is suggested that it is possible to identify the gravitational field as a phenomenological manifestation of space-time commutation relations and to thereby clarify its role as an ultraviolet regularizer.

J. Madore

1996-07-26T23:59:59.000Z

168

Covered Product Category: Residential Heat Pump Water Heaters...  

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

used for many years for space heating and cooling. It can be found in small and large products alike, such as window air conditioners used in homes through large rooftop units...

169

Orbit Spaces in Superconductivity  

E-Print Network [OSTI]

In the framework of Landau theory of phase transitions one is interested to describe all the possible low symmetry ``superconducting'' phases allowed for a given superconductor crystal and to determine the conditions under which this crystal undergoes a phase transition. These problems are best described and analyzed in the orbit space of the high symmetry group of the ``normal, non-superconducting'' phase of the crystal. In this article it is worked out a simple example concerning superconductivity, that shows the P-matrix method to determine the equations and inequalities defining the orbit space and its stratification. This approach is of general validity and can be used in all physical problems that make use of invariant functions, as long as the symmetry group is compact.

Vittorino Talamini

2006-07-30T23:59:59.000Z

170

Essays in Space Science  

SciTech Connect (OSTI)

The papers presented cover a broad segment of space research and are an acknowledgement of the personal involvement of Frank McDonald in many of these efforts. The totality of the papers were chosen so as to sample the scientific areas influenced by him in a significant manner. Three broad areas are covered: particles and fields of the solar system; cosmic ray astrophysics; and gamma ray, x ray, and infrared astronomics.

Ramaty, R.; Cline, T.L.; Ormes, J.F.

1987-06-01T23:59:59.000Z

171

National Aeronautics and Space Administration International Space Station  

E-Print Network [OSTI]

and technological endeavor ever undertaken, involving support from five space agencies representing 16 nations. Once's solar panels exceed the wingspan of a Boeing 777 jetliner and harness enough energy from the sunNational Aeronautics and Space Administration NASAfacts International Space Station Clearly

172

INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP  

E-Print Network [OSTI]

space exploration infrastructure standards facilitating interoperability through an international with relevant existing international working groups/ organisations. · Preparation and Organization of a WS1 INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP WORKPLAN Update following 3rd ISECG Meeting

173

Demystifying White Spaces Xuemin Hongl  

E-Print Network [OSTI]

Demystifying White Spaces Xuemin Hongl , Cheng-Xiang Wangl , John Thompson2 , and Yan Zhang3 1Joint.wang@hw.ac.uk.john.thompson@ed.ac.uk. yanzhang@ieee.org Abstract-White spaces refer to the unused frequency voids across time or space. The vast existence of white spaces has been validated by many measurements and is widely regarded as an undesirable

Wang, Cheng-Xiang

174

Symplectic space and orthogonal space of n qubits  

E-Print Network [OSTI]

In the Hilbert space of n qubits, we introduce the symplectic space (n odd) and the orthogonal space (n even) via the spin-flip operator. Under this mathematical structure we discuss some properties of n qubits, including homomorphically mapping the local operations of n qubits into the symplectic group or orthogonal group, and prove that the generalized ``magic basis'' is just the bi-orthonormal basis (that is, the orthonormal basis of both Hilbert space and the orthogonal space ). Finally, an example is given to discuss the application in physics of this mathematical structure.

Jian-Wei Xu

2010-11-14T23:59:59.000Z

175

Electromagnetic fields induced by a point source in a uniaxial multiferroic full-space, half-space, and bimaterial space  

E-Print Network [OSTI]

Electromagnetic fields induced by a point source in a uniaxial multiferroic full-space, half-space, and bimaterial space X. Wang and E. Pana) Department of Civil Engineering and Department of Applied Mathematics multiferroic full-space, half-space, and bimaterial space. While for the bimaterial space case the interface

Pan, Ernie

176

The -space Property in Monotonically Normal Spaces and GO-Spaces Harold R. Bennett, Texas Tech University, Lubbock, TX 79409  

E-Print Network [OSTI]

The -space Property in Monotonically Normal Spaces and GO-Spaces by Harold R. Bennett, Texas Tech-8795 Abstract In this paper we examine the role of the -space property (equivalently of the MCM-property) in generalized ordered (GO-)spaces and, more generally, in monotonically normal spaces. We show that a GO-space

Lutzer, David J.

177

National Aeronautics and Space Administration  

E-Print Network [OSTI]

and Contracting Processes. Developing adequate cost estimates, managing program costs, and ensuring that NASA. Transitioning from the Space Shuttle to the Next Generation of Space Vehicles. Balancing schedule and resource of the complexity of balancing the human capital, equipment, and property needs of the Space Shuttle Program

Christian, Eric

178

Design guidance for play spaces  

E-Print Network [OSTI]

Design guidance for play spaces March 2006 Lindsey Houston, Roger Worthington, Paddy Harrop #12 Design Process 3 Play Spaces 4 Design Principles 6 Elements of Play 6 Existing Play Structures 8 Contacts, Jason Maclean, Andrew Norris, Bridgette Hall and Tania Crocket in #12;Design guidance for play spaces. 3

179

Geodesic spaces : momentum Groups : symmetry  

E-Print Network [OSTI]

Geodesic spaces : momentum :: Groups : symmetry Vaughan Pratt Stanford University BLAST 2010 a · b denoting b rotated 90 degrees about a. End of reprise. 3. This talk; Geodesic spaces At FMCS. as points evenly spaced along a geodesic , right distributivity expresses a symmetry of about an arbitrary

Pratt, Vaughan

180

Policies on Japan's Space Industry  

E-Print Network [OSTI]

as a strategic industry Practical space use in National Security Diplomacy ...etc Policy Administrative Structure on the Basic Space Law legislated in 2008. 1. The government sets space policy as a national strategy utilization environment Develop new markets with small size satellites and rockets Promote the serialization

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


181

National Aeronautics and Space Administration  

E-Print Network [OSTI]

National Aeronautics and Space Administration Launch Services Program Earth's Bridge to Space 2012 roles, getting rockets and satellites ready for flight, on their way, and all the way to orbit absolutely instrumental for the United States to have access to a dependable and secure Earth-to-space bridge

182

Hyper Space Issue 3  

E-Print Network [OSTI]

WIMTEft 3 EDITOR'S SPACE 4 PEN PALS 4 COMMUNICATIONS 5 SW IS GAINING 5 BIOS 6SW SERIAL CHAPTFR I 8 STAR WARS PflFM 8 A SONG FOR THF UNBORN 9 PIONFFR SHORT STORY 70WITHINTHFFORHF 70 LOOKING BACK 77 RATTIF EPIC PflFM PART 1 12 BEHIND.... Follow me." Herb led him through the woods. Then he pulled away the branches and debris. When the man saw it his eyebrows went up in surprise. "Oh no, don't tell me we got another ship from Earth. I wish they'd quit sending us their junk." 9 WITHIN...

1978-01-01T23:59:59.000Z

183

Space time and rotations  

E-Print Network [OSTI]

The paper considers the problem of finding the metric of space time around a rotating, weakly gravitating body. Both external and internal metric tensors are consistently found, together with an appropriate source tensor. All tensors are calculated at the lowest meaningful approximation in a power series. The two physical parameters entering the equations (the mass and the angular momentum per unit mass) are assumed to be such that the mass effects are negligible with respect to the rotation effects. A non zero Riemann tensor is obtained. The order of magnitude of the effects at the laboratory scale is such as to allow for experimental verification of the theory.

A. Tartaglia

2002-01-04T23:59:59.000Z

184

European Space Power Conference  

SciTech Connect (OSTI)

To support the Space Exploration Initiative (SEI), a study was performed to investigate power system alternatives for the rover vehicles and servicers that were subsequently generated for each of these rovers and servicers, candidate power sources incorporating various power generation and energy storage technologies were identified. The technologies were those believed most appropriate to the SEI missions, and included solar, electrochemical, and isotope systems. The candidates were characterized with respect to system mass, deployed area, and volume. For each of the missions a preliminary selection was made. Results of this study depict the available power sources in light of mission requirements as they are currently defined.

Bents, D.J.; Kohout, L.L.; Mckissock, B.I.; Rodriguez, C.D.; Withrow, C.A.; Colozza, A.; Hanlon, J.C.; Schmitz, P.C.

1991-01-01T23:59:59.000Z

185

Earth, Space Sciences  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCI Home It is the mission of theESnetEarth, Space

186

Berkeley Lab Space  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for a Job ExternalBerkeley Lab | SharesSpace

187

Noncommutative space-time models  

E-Print Network [OSTI]

The FRT quantum Euclidean spaces $O_q^N$ are formulated in terms of Cartesian generators. The quantum analogs of N-dimensional Cayley-Klein spaces are obtained by contractions and analytical continuations. Noncommutative constant curvature spaces are introduced as a spheres in the quantum Cayley-Klein spaces. For N=5 part of them are interpreted as the noncommutative analogs of (1+3) space-time models. As a result the quantum (anti) de Sitter, Newton, Galilei kinematics with the fundamental length and the fundamental time are suggested.

N. A. Gromov; V. V. Kuratov

2005-07-01T23:59:59.000Z

188

Structure of Noncommutative Fock space  

E-Print Network [OSTI]

The structure of the state-vector space of identical bosons in noncommutative spaces is investigated. To maintain Bose-Einstein statistics the commutation relations of phase space variables should simultaneously include coordinate-coordinate non-commutativity and momentum-momentum non-commutativity, which lead to noncommutative Fock space. By this we mean that creation and annihilation operators corresponding to different degrees of freedom of the bosons do not commute each other. The main character of the noncommutative Fock space is there are no ordinary number representations because of the non-commutativity between different number operators. However, eigenvectors of several pairs of commuting Hermitian operators are obtained which can also be served as bases in this Fock space. As a simple example, an explicit form of two-dimensional canonical coherent state in this noncommutative Fock space is constructed and its properties are discussed.

Si-Cong Jing; Qiu-Yu Liu; Tu-Nan Ruan

2005-05-05T23:59:59.000Z

189

Constrained space camera assembly  

DOE Patents [OSTI]

A constrained space camera assembly which is intended to be lowered through a hole into a tank, a borehole or another cavity. The assembly includes a generally cylindrical chamber comprising a head and a body and a wiring-carrying conduit extending from the chamber. Means are included in the chamber for rotating the body about the head without breaking an airtight seal formed therebetween. The assembly may be pressurized and accompanied with a pressure sensing means for sensing if a breach has occurred in the assembly. In one embodiment, two cameras, separated from their respective lenses, are installed on a mounting apparatus disposed in the chamber. The mounting apparatus includes means allowing both longitudinal and lateral movement of the cameras. Moving the cameras longitudinally focuses the cameras, and moving the cameras laterally away from one another effectively converges the cameras so that close objects can be viewed. The assembly further includes means for moving lenses of different magnification forward of the cameras.

Heckendorn, Frank M. (Aiken, SC); Anderson, Erin K. (Augusta, GA); Robinson, Casandra W. (Trenton, SC); Haynes, Harriet B. (Aiken, SC)

1999-01-01T23:59:59.000Z

190

Machian space quanta  

E-Print Network [OSTI]

A new model for space and matter is obtained by joining every pair of point charges in the observable universe by an ethereal string. Positive gravitational potential energy in each string gives an attractive gravitational force due to the action of an energy conservation constraint. Newton's laws of motion are derived and inertia is explained in accordance with Mach's principle. The Machian string model gives a surprisingly simple way to understand the expansion history of the Universe. The decelerating expansion in the radiation era and the matter era is explained without using General Relativity and the transition from deceleration to acceleration is explained without the need to introduce a separate 'dark energy' component. The interaction between Machian strings gives a physical model for modified Newtonian dynamics (MOND) and is therefore an alternative to 'dark matter'.

Essex, David W

2015-01-01T23:59:59.000Z

191

Machian space quanta  

E-Print Network [OSTI]

A new model for space and matter is obtained by joining every pair of point charges in the observable universe by an ethereal string. Positive gravitational potential energy in each string gives an attractive gravitational force due to the action of an energy conservation constraint. Newton's laws of motion are derived and inertia is explained in accordance with Mach's principle. The Machian string model gives a surprisingly simple way to understand the expansion history of the Universe. The decelerating expansion in the radiation era and the matter era is explained without using General Relativity and the transition from deceleration to acceleration is explained without the need to introduce a separate 'dark energy' component. The interaction between Machian strings gives a physical model for modified Newtonian dynamics (MOND) and is therefore an alternative to 'dark matter'.

David W. Essex

2015-01-25T23:59:59.000Z

192

Introduction Space Time Codes Space Time Coding with Feedback New Thoughts Summary Space-Time Coding for Multi-Antenna  

E-Print Network [OSTI]

Introduction Space Time Codes Space Time Coding with Feedback New Thoughts Summary Space 2007 #12;Introduction Space Time Codes Space Time Coding with Feedback New Thoughts Summary MIMO: Diversity vs Multiplexing Multiplexing Diversity Pictures taken from lectures notes on Space Time Coding

Veeravalli, Venugopal

193

Morse theory in path space  

E-Print Network [OSTI]

We consider the path space of a curved manifold on which a point particle is introduced in a conservative physical system with constant total energy to formulate its action functional and geodesic equation together with breaks on the path. The second variation of the action functional is exploited to yield the geodesic deviation equation and to discuss the Jacobi fields on the curved manifold. We investigate the topology of the path space using the action functional on it and its physical meaning by defining the gradient of the action functional, the space of bounded flow energy solutions and the moduli space associated with the critical points of the action functional. We also consider the particle motion on the $n$-sphere $S^{n}$ in the conservative physical system to discuss explicitly the moduli space of the path space and the corresponding homology groups.

Yong Seung Cho; Soon-Tae Hong

2007-06-01T23:59:59.000Z

194

Entropic Gravity in Rindler Space  

E-Print Network [OSTI]

We show that Rindler horizons are entropic screens and gravity is an entropic force in Rindler space by deriving the Verlinde entropy formula from the focusing of light due to a mass close to the horizon. Consequently, gravity is also entropic in the near horizon regions of Schwarzschild and de Sitter space-times. In different limits, the entropic nature of gravity in Rindler space leads to the Bekenstein entropy bound and the uncertainty principle.

Edi Halyo

2011-04-13T23:59:59.000Z

195

Building America Webinar: Retrofitting Central Space Conditioning...  

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

Control strategies to improve hydronic space heating performance Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Control...

196

Radioisotopes: Energy for Space Exploration  

ScienceCinema (OSTI)

Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

Carpenter, Bob; Green, James; Bechtel, Ryan

2013-05-29T23:59:59.000Z

197

TANK SPACE ALTERNATIVES ANALYSIS REPORT  

SciTech Connect (OSTI)

This report addresses the projected shortfall of double-shell tank (DST) space starting in 2018. Using a multi-variant methodology, a total of eight new-term options and 17 long-term options for recovering DST space were evaluated. These include 11 options that were previously evaluated in RPP-7702, Tank Space Options Report (Rev. 1). Based on the results of this evaluation, two near-term and three long-term options have been identified as being sufficient to overcome the shortfall of DST space projected to occur between 2018 and 2025.

TURNER DA; KIRCH NW; WASHENFELDER DJ; SCHAUS PS; WODRICH DD; WIEGMAN SA

2010-04-27T23:59:59.000Z

198

Space Data Systems (ISR-3)  

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

3 Space Data Systems Data collection and processing, information exploitation and delivery Contacts Group Leader Michael Cai Email Staff Operations Manager Nancy Graves Email...

199

Phase space quantum mechanics - Direct  

SciTech Connect (OSTI)

Conventional approach to quantum mechanics in phase space (q,p), is to take the operator based quantum mechanics of Schroedinger, or an equivalent, and assign a c-number function in phase space to it. We propose to begin with a higher level of abstraction, in which the independence and the symmetric role of q and p is maintained throughout, and at once arrive at phase space state functions. Upon reduction to the q- or p-space the proposed formalism gives the conventional quantum mechanics, however, with a definite rule for ordering of factors of noncommuting observables. Further conceptual and practical merits of the formalism are demonstrated throughout the text.

Nasiri, S.; Sobouti, Y.; Taati, F. [Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, Zanjan University, Zanjan (Iran); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, University of Kurdistan, D-78457 Sanadaj (Iran)

2006-09-15T23:59:59.000Z

200

Target Space Duality III: Potentials  

E-Print Network [OSTI]

We generalize previous results on target space duality to the case where there are background fields and the sigma model lagrangian has a potential function.

Orlando Alvarez; Blazej Ruszczycki

2007-12-31T23:59:59.000Z

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


201

UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP  

E-Print Network [OSTI]

" miniaturised sensors, · low cost - high return due to development derived from Solar Orbiter EAS and Tech Outline · What is L-DEPP? · How are we involved? · Low-energy Electron and Ion Analyser (LEIA) · Why is LEIA necessary? · Potential UK benefits · Summary #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE

Anand, Mahesh

202

Physics in discrete spaces (A): Space-Time organization  

E-Print Network [OSTI]

We put forward a model of discrete physical space that can account for the structure of space- time, give an interpretation to the postulates of quantum mechanics and provide a possible explanation to the organization of the standard model of particles.

P. Peretto

2010-12-29T23:59:59.000Z

203

Atmospheric,OceanicandSpaceSciences Atmospheric, Oceanic & Space Sciences  

E-Print Network [OSTI]

of Michigan Space Research Building 2455 Hayward Street Ann Arbor, MI 48109-2143 aoss_um@umich.edu http Arbor ©The Regents of the University of Michigan Mark Schlissel, ex officio Sequential Graduate / under/Thermosphere Physics Planetary Magnetospheres Solar & Heliospheric Physics Space Weather Aeronomy For Faculty involved

Eustice, Ryan

204

Constrained space camera assembly  

DOE Patents [OSTI]

A constrained space camera assembly which is intended to be lowered through a hole into a tank, a borehole or another cavity is disclosed. The assembly includes a generally cylindrical chamber comprising a head and a body and a wiring-carrying conduit extending from the chamber. Means are included in the chamber for rotating the body about the head without breaking an airtight seal formed therebetween. The assembly may be pressurized and accompanied with a pressure sensing means for sensing if a breach has occurred in the assembly. In one embodiment, two cameras, separated from their respective lenses, are installed on a mounting apparatus disposed in the chamber. The mounting apparatus includes means allowing both longitudinal and lateral movement of the cameras. Moving the cameras longitudinally focuses the cameras, and moving the cameras laterally away from one another effectively converges the cameras so that close objects can be viewed. The assembly further includes means for moving lenses of different magnification forward of the cameras. 17 figs.

Heckendorn, F.M.; Anderson, E.K.; Robinson, C.W.; Haynes, H.B.

1999-05-11T23:59:59.000Z

205

National Aeronautics and Space Administration  

E-Print Network [OSTI]

Vehicle Mission Concept Review Complete Space Vehicle SRR Complete Partial-Throttle RBS Engine TCA Test Engine Test Completed Subscale Prop Tank Assembly Review March 2014 Space Vehicle Subsystem interim's Commercial Crew Program (CCP) is facilitating the development of safe, reliable and cost-effective human

Waliser, Duane E.

206

National Aeronautics and Space Administration  

E-Print Network [OSTI]

human-made object to enter the vast expanses between the stars. It was hardly the first history. To toast the interstellar event, TV's Stephen Colbert invited Voyager project scientist Ed Stone on his they look into deep space? For Planck, a European space telescope with technology aboard from JPL

Waliser, Duane E.

207

Space Telescope Programs Hubble Observatory  

E-Print Network [OSTI]

Assurance/Configuration Management Mr. Christopher Scholz EAG QA Manager #12;Space Telescope Programs Hubble · COS-UCB-002 QA Implementation Plan Released December 1, 1999 · COS-UCB-003 CM Plan released DecemberSpace Telescope Programs Hubble Observatory HST-COS FUV PER 11/8/00 FUV Detector System Quality

Colorado at Boulder, University of

208

Title: Space Management --Requests for Space Renovations and Changes in the Use of Space  

E-Print Network [OSTI]

president, the Director of Space Management will request a cost estimate from Facilities Management. 4. With the cost estimate in hand, the cognizant vice president and the Director of Space Management will undertake's Capital Budget. Vice presidents are encouraged to assign priorities to the projects in their areas. 6. Or

Huang, Jianyu

209

DEFINITION OF USABLE SPACE "Usable Space" is the actual space to be occupied by the Company. It is  

E-Print Network [OSTI]

DEFINITION OF USABLE SPACE "Usable Space" is the actual space to be occupied by the Company. It is determined as follows: If the space is on a single-tenancy floor, compute the inside gross area by measuring. If the space is on a multiple-tenancy floor, measure from the exterior building walls as above and to the room

210

Finding Space Beyond Variables: An Analytical Review of Urban Space and Social Inequalities  

E-Print Network [OSTI]

On the Social Organization of Urban Space: Subversions andand Community in Urban Spaces. In David Bell & Gill1991. The Production of Space. Transl. Donald Nicholson-

Joseph, Lauren

2008-01-01T23:59:59.000Z

211

Dimensional regularization in configuration space  

SciTech Connect (OSTI)

Dimensional regularization is introduced in configuration space by Fourier transforming in {nu} dimensions the perturbative momentum space Green functions. For this transformation, the Bochner theorem is used; no extra parameters, such as those of Feynman or Bogoliubov and Shirkov, are needed for convolutions. The regularized causal functions in {ital x} space have {nu}-dependent moderated singularities at the origin. They can be multiplied together and Fourier transformed (Bochner) without divergence problems. The usual ultraviolet divergences appear as poles of the resultant analytic functions of {nu}. Several examples are discussed. {copyright} {ital 1996 The American Physical Society.}

Bollini, C.G. [Facultad de Ciencias Exactas de La Universidad de La Plata, Departamento de Fisica, C.C. 67 La Plata (Argentina)] [Facultad de Ciencias Exactas de La Universidad de La Plata, Departamento de Fisica, C.C. 67 La Plata (Argentina); [Comision de Investigaciones Cientificas de La Provincia de Buenos Aires, Buenos Aires (Argentina); Giambiagi, J.J. [Centro Brasileiro de Pesquisas Fisicas--CBPF, Rua Dr. Xavier Sigaud, 150, 22.290-180 Rio de Janeiro RJ, (Brasil)] [Centro Brasileiro de Pesquisas Fisicas--CBPF, Rua Dr. Xavier Sigaud, 150, 22.290-180 Rio de Janeiro RJ, (Brasil)

1996-05-01T23:59:59.000Z

212

Contacts of space--times  

SciTech Connect (OSTI)

The concept of contact between manifolds is applied to space--times of general relativity. For a given background space--time a contact approximation of second order is defined and interpreted both from the point of view of a metric pertubation and of a higher order tangent manifold. In the first case, an application to the high frequency gravitational wave hypothesis is suggested. In the second case, a constant curvature tangent bundle is constructed and suggested as a means to define a ten parameter local space--time symmetry.

Maia, M.D.

1981-03-01T23:59:59.000Z

213

Particle Creation in Global de Sitter Space: Bulk Space Consideration  

E-Print Network [OSTI]

Recently in \\cite{Anderson:2013zia, Anderson:2013ila}, it was shown that global de Sitter space is unstable even to the massive particle creation with no self-interactions. In this paper we study the instability by making use of the coordinate-independent plane wave in de Sitter space, explicitly, we show there is a mixture of positive and negative solutions at the past infinity. The so-called plane wave are defined globally in de Sitter space and de Sitter invariance is manifest since such modes are deduced from the group theoretical point of view by the means of the Casimir operators. This method could potentially generalize to higher spin consideration and the corresponding higher-spin wave equations can be obtained in terms of the plane wave. In fact, the underling symmetry of embedding space namely the $4+1$ dimensional flat space is used to write the field equations and the solutions are obtained in terms of the plane wave in embedding space.

M. Reza Tanhayi

2014-08-12T23:59:59.000Z

214

ABSL Space Products 2011 BENEFITS / ECONOMIC PROSPECTS  

E-Print Network [OSTI]

ABSL Space Products 2011 BENEFITS / ECONOMIC PROSPECTS: Future exploration Roving Rendezvous Space Products 2011 ABSL Space Products for Growth: HERITAGE & RELEVANCE ABSL flew the first Lithium-Ion battery in space with 70 launched to date Now 100 people working on space batteries, including US office

Anand, Mahesh

215

4.8 Row Space  

E-Print Network [OSTI]

Feb 16, 2007 ... For Problems 2631, find the change-of-basis matrix PB?C from the given basis C to the given basis B of the vector space V . 26. V , B, and C...

PRETEX (Halifax NS) #1 1054 1999 Mar 05 10:59:16

2010-02-12T23:59:59.000Z

216

National Aeronautics and Space Administration  

E-Print Network [OSTI]

Deep Space Atomic Clock Composite Strut Structural Testing Exoskeleton Solar Sail and Boom Fab MSL heat shield with instrumentation Inflatable Re-entry Vehicle Experiment Additive Manufacturing BIRD focal

217

(Nuclear power engineering in space)  

SciTech Connect (OSTI)

The principal purpose of this trip was to participate in the Anniversary Specialist Conference on Nuclear Power Engineering in Space hosted by the USSR Ministry of Atomic Power Engineering and Industry. The conference was held in Obninsk, USSR. A secondary purpose of the trip was to meet with the French Commissariat A L'Energie Atomique in Paris regarding the status of their space power program.

Cooper, R.H. Jr.

1990-06-18T23:59:59.000Z

218

Nuclear Propulsion in Space (1968)  

SciTech Connect (OSTI)

Project NERVA was an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space Nuclear Propulsion Office (SNPO) at the Nuclear Rocket Development Station in Jackass Flats, Nevada U.S.A. Between 1959 and 1972, the Space Nuclear Propulsion Office oversaw 23 reactor tests, both the program and the office ended at the end of 1972.

None

2012-06-23T23:59:59.000Z

219

Metrization in weakly sequential spaces  

E-Print Network [OSTI]

METRIZATION IN WEAXLY SEQUENTIAL SPACES A Thesis by DOMINIQUE MARGARET EMERSON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1975 Ma)or Sub...]ect: Mathematics METRIZATION IN WEAKLY SEQUENTIAL SPACES A Thesis by DOMINIQUE MARGARET EMERSON Approved as to style and content by: (Chairman of Committee) c-0 (Head of Department) ember) (Member) May 1975 ABSTRACT Metrization in Weakly Sequential...

Emerson, Dominique Margaret

1975-01-01T23:59:59.000Z

220

Nuclear Propulsion in Space (1968)  

ScienceCinema (OSTI)

Project NERVA was an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space Nuclear Propulsion Office (SNPO) at the Nuclear Rocket Development Station in Jackass Flats, Nevada U.S.A. Between 1959 and 1972, the Space Nuclear Propulsion Office oversaw 23 reactor tests, both the program and the office ended at the end of 1972.

None

2014-06-17T23:59:59.000Z

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


221

Dynamical 3-Space: Emergent Gravity  

E-Print Network [OSTI]

The laws of gravitation devised by Newton, and by Hilbert and Einstein, have failed many experimental and observational tests, namely the bore hole g anomaly, flat rotation curves for spiral galaxies, supermassive black hole mass spectrum, uniformly expanding universe, cosmic filaments, laboratory G measurements, galactic EM bending, precocious galaxy formation,.. The response has been the introduction of the new epicycles: ``dark matter", ``dark energy", and others. To understand gravity we must restart with the experimental discoveries by Galileo, and following a heuristic argument we are led to a uniquely determined theory of a dynamical 3-space. That 3-space exists has been missed from the beginning of physics, although it was 1st directly detected by Michelson and Morley in 1887. Uniquely generalising the quantum theory to include this dynamical 3-space we deduce the response of quantum matter and show that it results in a new account of gravity, and explains the above anomalies and others. The dynamical theory for this 3-space involves G, which determines the dissipation rate of space by matter, and alpha, which experiments and observation reveal to be the fine structure constant. For the 1st time we have a comprehensive account of space and matter and their interaction - gravity.

Reginald T Cahill

2011-02-16T23:59:59.000Z

222

Task-space setpoint control of robots with dual task-space information  

E-Print Network [OSTI]

In conventional task-space control problem of robots, a single task-space information is used for the entire task. When the task-space control problem is formulated in image space, this implies that visual feedback is used ...

Cheah, C. C.

223

Physical and Numerical Space Running Head: Biases in Physical and Numerical Space  

E-Print Network [OSTI]

Physical and Numerical Space 1 Running Head: Biases in Physical and Numerical Space Elementary school children's attentional biases in physical and numerical space Tilbe Göksun: April 30, 2012 #12; Physical and Numerical Space 2 Abstract Numbers

Chatterjee, Anjan

224

Space, Place, and Music in New Orleans  

E-Print Network [OSTI]

Gaston. 1994. The Poetics of Space: The Classic Look at How1980. The Human Experience of Space and Place. New York: St.hood Comes First: Race, Space, and Place in Rap and Hip-

Raimondi, Julie Michelle

2012-01-01T23:59:59.000Z

225

Nonparametric Regression in Orlicz spaces? Saverio Salzo  

E-Print Network [OSTI]

inequalities We start by recalling a theorem about inequalities in Banach spaces. Theorem (Xu, Roach 91') Let B in Banach spaces. Theorem (Xu, Roach 91') Let B be Banach space and p ]1, +[. If B is uniformly smooth

Combettes, Patrick Louis

226

Building America Webinar: High Performance Space Conditioning...  

Energy Savers [EERE]

Webinar: High Performance Space Conditioning Systems, Part II - Compact Buried Ducts Building America Webinar: High Performance Space Conditioning Systems, Part II - Compact Buried...

227

Space Conditioning Standing Technical Commitee Presentation ...  

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

Commitee Presentation Space Conditioning Standing Technical Commitee Presentation This presentation outlines the goals of the Space Conditioning Standing Technical ommittee, as...

228

Building America Webinar: High Performance Space Conditioning...  

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

II - Design Options for Locating Ducts within Conditioned Space Building America Webinar: High Performance Space Conditioning Systems, Part II - Design Options for Locating Ducts...

229

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,602 1,397...

230

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,870 1,276...

231

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All...

232

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 2,037...

233

Indexing Moving Objects by Space Filling Curves in the Dual Space  

E-Print Network [OSTI]

The Bdual ­ tree: Indexing Moving Objects by Space Filling Curves in the Dual Space By Man Lung Yiu Objects by Space Filling Curves in the Dual Space Introduction Related work Problem definition: Indexing Moving Objects by Space Filling Curves in the Dual Space Introduction Related work Problem

Kaiserslautern, Universität

234

Transform-Space View: Performing Spatial Join in the Transform Space  

E-Print Network [OSTI]

Transform-Space View: Performing Spatial Join in the Transform Space Using Original-Space Indexes that satisfy a given spatial relationship. In spatial joins using indexes, original-space indexes such as the R-tree are widely used. An original-space index is the one that indexes objects as represented in the original space

Whang, Kyu-Young

235

Integration of space weather into space situational awareness  

SciTech Connect (OSTI)

Rapid assessment of space weather effects on satellites is a critical step in anomaly resolution and satellite threat assessment. That step, however, is often hindered by a number of factors including timely collection and delivery of space weather data and the inherent com plexity of space weather information. As part of a larger, integrated space situational awareness program, Los Alamos National Laboratory has developed prototype operational space weather tools that run in real time and present operators with customized, user-specific information. The Dynamic Radiation Environment Assimilation Model (DREAM) focuses on the penetrating radiation environment from natural or nuclear-produced radiation belts. The penetrating radiation environment is highly dynamic and highly orbit-dependent. Operators often must rely only on line plots of 2 MeV electron flux from the NOAA geosynchronous GOES satellites which is then assumed to be representative of the environment at the satellite of interest. DREAM uses data assimilation to produce a global, real-time, energy dependent specification. User tools are built around a distributed service oriented architecture (SOA) which will allow operators to select any satellite from the space catalog and examine the environment for that specific satellite and time of interest. Depending on the application operators may need to examine instantaneous dose rates and/or dose accumulated over various lengths of time. Further, different energy thresholds can be selected depending on the shielding on the satellite or instrument of interest. In order to rapidly assess the probability that space weather was the cause of anomalous operations, the current conditions can be compared against the historical distribution of radiation levels for that orbit. In the simplest operation a user would select a satellite and time of interest and immediately see if the environmental conditions were typical, elevated, or extreme based on how often those conditions occur in that orbit. This allows users to rapidly rule in or out environmental causes of anomalies. The same user interface can also allow users to drill down for more detailed quantitative information. DREAM can be run either from a distributed web-based user interface or as a stand-alone application for secure operations. In this paper we discuss the underlying structure of the DREAM model and demonstrate the user interface that we have developed . We also present some prototype data products and user interfaces for DREAM and discuss how space environment information can be seamlessly integrated into operational SSA systems.

Reeves, Geoffrey D [Los Alamos National Laboratory

2010-11-09T23:59:59.000Z

236

SunShot Prize: America's Most Affordable Rooftop Solar: A Competition To Spur Low-Cost Rooftop Solar Installations Across The Nation (Fact Sheet)  

SciTech Connect (OSTI)

The SunShot Prize encourages novel public-private partnerships, original business models, and innovative approaches to installing clean, renewable solar energy. The sustainable business strategies developed by participants will provide transferable lessons that can be applied nationwide to hasten America's transition to affordable clean energy in a post-subsidy market.

Not Available

2012-06-01T23:59:59.000Z

237

Unique features of space reactors  

SciTech Connect (OSTI)

Space reactors are designed to meet a unique set of requirements; they must be sufficiently compact to be launched in a rocket to their operational location, operate for many years without maintenance and servicing, operate in extreme environments, and reject heat by radiation to space. To meet these restrictions, operating temperatures are much greater than in terrestrial power plants, and the reactors tend to have a fast neutron spectrum. Currently, a new generation of space reactor power plants is being developed. The major effort is in the SP-100 program, where the power plant is being designed for seven years of full power, and no maintenance operation at a reactor outlet operating temperature of 1350 K. 8 refs., 3 figs., 1 tab.

Buden, D.

1990-01-01T23:59:59.000Z

238

Evaluations of average level spacings  

SciTech Connect (OSTI)

The average level spacing for highly excited nuclei is a key parameter in cross section formulas based on statistical nuclear models, and also plays an important role in determining many physics quantities. Various methods to evaluate average level spacings are reviewed. Because of the finite experimental resolution, to detect a complete sequence of levels without mixing other parities is extremely difficult, if not totally impossible. Most methods derive the average level spacings by applying a fit, with different degrees of generality, to the truncated Porter-Thomas distribution for reduced neutron widths. A method that tests both distributions of level widths and positions is discussed extensivey with an example of /sup 168/Er data. 19 figures, 2 tables.

Liou, H.I.

1980-01-01T23:59:59.000Z

239

3739SPACE ALLOCATION/RE-ALLOCATION PROCEDURE Client identifies  

E-Print Network [OSTI]

Page 1 3739SPACE ALLOCATION/RE-ALLOCATION PROCEDURE Client identifies space requirement Client completes space request form Submit space request form to Space Management Office Space Management Office acknowledge receipt Is space form completed accurately Is there vacant space Space Management Office conduct

240

National Aeronautics and Space Administration Space Shuttle Era Facts  

E-Print Network [OSTI]

Center in Florida on April 12, 1981.Atlantis flew the final space mission, STS-135, in July 2011 into the Atlantic Ocean, retrieved and reused.The external tank is the only part of the stack not used again, who on May 11, 1792, maneuvered his ship through dangerous inland waters to explore British Columbia

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


241

National Aeronautics and Space Administration Space Launch System  

E-Print Network [OSTI]

cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle's RS-25 engines. SLS is an advanced avionics. Propulsion for the SLS core stage will be provided by four RS-25 engines. The RS-25 engine design was previously designated the space shuttle main engine and is built by Aerojet Rocketdyne of Sacramento, Calif

Waliser, Duane E.

242

National Aeronautics and Space Administration Marshall Space Flight Center  

E-Print Network [OSTI]

such as the Fastrac engine system, developed in only three years, and provided early development for the hydrogen for both Earth- to-orbit launch and in-space missions. We contribute engineering expertise for all phases and reducing overall cost. Marshall's managers and engineers have designed, developed, integrated

Waliser, Duane E.

243

National Aeronautics and Space Administration space launch system  

E-Print Network [OSTI]

progress on the core stage with NASA Deputy Associate Administrator Lori Garver, RS-25 engines in the Space Shuttle Main Engine Processing Facility, solid rocket motor test firing, J-2X test firing #12;Providing and operations costs. It will use a liquid hydrogen and liquid oxygen propulsion system, which will include

Waliser, Duane E.

244

National Aeronautics and Space Administration Space Life and Physical Sciences  

E-Print Network [OSTI]

The President's 2015 Budget is expected to be released next month 5 #12;2014 Exploration Budget FY 2014 Budget National Aeronautics and Space Administration FY 2014 PRESIDENT'S BUDGET REQUEST SUMMARY 7 #12 #12;Biological and Physical Science FY14 Budget Strategy · The FY 2014 Cost mark is $112.7M which

Waliser, Duane E.

245

National Aeronautics and Space Administration Marshall Space Flight Center  

E-Print Network [OSTI]

systems Marshall performs basic research, matures technologies, and develops, tests, and sustains, nuclear thermal propulsion, space nuclear power systems, nuclear surface power systems and propellant: ­ Apollo Program: F-1 engines from testing to flight and J-2 engines from concept development to flight

246

2010 RAL Space Head, Space Engineering &Technology Division  

E-Print Network [OSTI]

-magnetic cavity that totally excluded the solar wind plasma ­ all the high energy particles were deflected around an engineer's perspective (not a plasma physicist!) a little history... #12;© 2010 RalSpace an Englishman-magnetosphere that would divert the high energy particles around it · What we have now shown is that there are local charge

247

Space Managment | 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSCharge CompensationSpace5Space

248

Free loop spaces in topology and  

E-Print Network [OSTI]

Free loop spaces in topology and physics Kathryn Hess What is the space of free loops? Enumeration of geodesics Hochschild and cyclic homology Homological conformal field theories Free loop spaces in topology Meeting of the Edinburgh Mathematical Society Glasgow, 14 November 2008 #12;Free loop spaces in topology

Thévenaz, Jacques

249

Library Reserved Room Policy All Meeting Spaces  

E-Print Network [OSTI]

Library Reserved Room Policy All Meeting Spaces Room reservation To make a reservation for any Library meeting space, complete the room reservation form at http://library.syr.edu/services/space/form-findroom.php. In order to provide equitable access to library spaces, the Library may impose limitations on frequency

Mather, Patrick T.

250

In ThIs Issue Berkeley's Space  

E-Print Network [OSTI]

In ThIs Issue Berkeley's Space Sciences Laboratory Tabletop Physics Bringing More Women's Space Sciences Laboratory to explore the physics behind the loss of the Martian atmosphere. It: Lockheed Martin #12;4 Berkeley's Space Sciences Laboratory GoinG on six decAdes of educAtion And spAce

Wurtele, Jonathan

251

PURDUE EXTENSION Open Space Planning  

E-Print Network [OSTI]

of runoff from their fields by implementing best manage- ment practices. There is more work to do of direct runoff. Contami- nated storm water can even be filtered through planned open space in the agricultural area with respect to soil erosion and some nutrients, but reduced tillage practices, filter strips

252

Space Perception by Visuokinesthetic Prediction  

E-Print Network [OSTI]

propose a robot model of space perception in a restricted domain in which a robot arm pushes a small block predicts the visual image of the gripper tool and the kinesthetic state of the robot arm after a small which would move the gripper of the robot arm from its current position to a position where it would

Moeller, Ralf

253

Upper Estimates for Banach Spaces  

E-Print Network [OSTI]

We study the relationship of dominance for sequences and trees in Banach spaces. In the context of sequences, we prove that domination of weakly null sequences is a uniform property. More precisely, if $(v_i)$ is a normalized basic sequence and $X...

Freeman, Daniel B.

2010-10-12T23:59:59.000Z

254

National Aeronautics and Space Administration  

E-Print Network [OSTI]

and harvestitslimitlessbenefits for humankind. We've really only just begun. Look up. That's where we're going! Each step generations of engineers, scientists and technologists. Join us as we unlock the mysteries of space is a remarkable achievement in its own right. And each step fosters development of new capabilities, technologies

Waliser, Duane E.

255

National Aeronautics and Space Administration  

E-Print Network [OSTI]

uncertainty ! Clouds and Climate Scenarios Projected warming Climate Change Prediction #12;National of air T and CO2 -> related to intensity of ocean turbulent mixing · Exchanges of energy, water and carbon with the ocean/ land/ice surface are mediated by turbulence #12;National Aeronautics and Space

Bordoni, Simona

256

Space Fission System Test Effectiveness  

SciTech Connect (OSTI)

Space fission technology has the potential to enable rapid access to any point in the solar system. If fission propulsion systems are to be developed to their full potential, however, near-term customers need to be identified and initial fission systems successfully developed, launched, and utilized. One key to successful utilization is to develop reactor designs that are highly testable. Testable reactor designs have a much higher probability of being successfully converted from paper concepts to working space hardware than do designs which are difficult or impossible to realistically test. ''Test Effectiveness'' is one measure of the ability to realistically test a space reactor system. The objective of this paper is to discuss test effectiveness as applied to the design, development, flight qualification, and acceptance testing of space fission systems. The ability to perform highly effective testing would be particularly important to the success of any near-term mission, such as NASA's Jupiter Icy Moons Orbiter, the first mission under study within NASA's Project Prometheus, the Nuclear Systems Program.

Houts, Mike [Los Alamos National Laboratory, MS-K575, Los Alamos, NM 87545 (United States); Schmidt, Glen L. [New Mexico Tech, Institute for Engineering Research and Applications, 901 University Blvd SE, Albuquerque, NM 87109-4339 (United States); Van Dyke, Melissa; Godfroy, Tom; Martin, James; Bragg-Sitton, Shannon; Dickens, Ricky; Salvail, Pat; Harper, Roger [NASA MSFC, TD40, Marshall Space Flight Center, AL, 35812 (United States)

2004-02-04T23:59:59.000Z

257

Space Science : Atmosphere Greenhouse Effect  

E-Print Network [OSTI]

Space Science : Atmosphere Greenhouse Effect Part-5a Solar + Earth Spectrum IR Absorbers Grey Atmosphere Greenhouse Effect #12;Radiation: Solar and Earth Surface B"(T) Planck Ideal Emission Integrate at the carbon cycle #12;However, #12;Greenhouse Effect is Complex #12;PLANETARY ENERGY BALANCE G+W fig 3-5

Johnson, Robert E.

258

Space Science: Atmosphere Thermal Structure  

E-Print Network [OSTI]

Space Science: Atmosphere Part -2 Thermal Structure Review tropospheres Absorption of Radiation Adiabatic Lapse Rate ~ 9 K/km Slightly smaller than our estimate Pressure ~3000ft under ocean surface thickness (positive up) is the solar zenith angle Fs is the solar energy flux at frequency (when

Johnson, Robert E.

259

Physical space and cosmology. I: Model  

E-Print Network [OSTI]

The nature of the physical space seems the most important subject in physics. A present paper proceeds from the assumption of physical reality of space contrary to the standard view of the space as a purely relational nonexistence - void. The space and its evolution are the primary sources of phenomena in Mega- and micro-worlds. Thus cosmology and particle physics have the same active agent - physical space.

Valeriy P. Polulyakh

2011-02-01T23:59:59.000Z

260

Space  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future |Carlos Valencia

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While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Structure of the Space of Diametrically Complete Sets in a Minkowski Space  

E-Print Network [OSTI]

Structure of the Space of Diametrically Complete Sets in a Minkowski Space Jos´e Pedro Moreno and Rolf Schneider Abstract We study the structure of the space of diametrically complete sets in a finite di- mensional normed space. In contrast to the Euclidean case, this space is in general not convex

Schneider, Rolf

262

United Nations Human Space Technology Initiative (HSTI)  

E-Print Network [OSTI]

The Human Space Technology Initiative was launched in 2010 within the framework of the United Nations Programme on Space Applications implemented by the Office for Outer Space Affairs of the United Nations. It aims to involve more countries in activities related to human spaceflight and space exploration and to increase the benefits from the outcome of such activities through international cooperation, to make space exploration a truly international effort. The role of the Initiative in these efforts is to provide a platform to exchange information, foster collaboration between partners from spacefaring and non-spacefaring countries, and encourage emerging and developing countries to take part in space research and benefit from space applications. The Initiative organizes expert meetings and workshops annually to raise awareness of the current status of space exploration activities as well as of the benefits of utilizing human space technology and its applications. The Initiative is also carrying out primary ...

Ochiai, M; Steffens, H; Balogh, W; Haubold, H J; Othman, M; Doi, T

2015-01-01T23:59:59.000Z

263

The GAMMA-400 Space Mission  

E-Print Network [OSTI]

GAMMA-400 is a new space mission which will be installed on board the Russian space platform Navigator. It is scheduled to be launched at the beginning of the next decade. GAMMA-400 is designed to study simultaneously gamma rays (up to 3 TeV) and cosmic rays (electrons and positrons from 1 GeV to 20 TeV, nuclei up to 10$^{15}$-10$^{16}$ eV). Being a dual-purpose mission, GAMMA-400 will be able to address some of the most impelling science topics, such as search for signatures of dark matter, cosmic-rays origin and propagation, and the nature of transients. GAMMA-400 will try to solve the unanswered questions on these topics by high-precision measurements of the Galactic and extragalactic gamma-ray sources, Galactic and extragalactic diffuse emission and the spectra of cosmic-ray electrons + positrons and nuclei, thanks to excellent energy and angular resolutions.

Cumani, P; Bonvicini, V; Topchiev, N P; Adriani, O; Aptekar, R L; Arkhangelskaja, I V; Arkhangelskiy, A I; Bergstrom, L; Berti, E; Bigongiari, G; Bobkov, S G; Boezio, M; Bogomolov, E A; Bonechi, S; Bongi, M; Bottai, S; Castellini, G; Cattaneo, P W; Dedenko, G L; De Donato, C; Dogiel, V A; Gorbunov, M S; Gusakov, Yu V; Hnatyk, B I; Kadilin, V V; Kaplin, V A; Kaplun, A A; Kheymits, M D; Korepanov, V E; Larsson, J; Leonov, A A; Loginov, V A; Longo, F; Maestro, P; Marrocchesi, P S; Menshenin, A L; Mikhailov, V V; Mocchiutti, E; Moiseev, A A; Mori, N; Moskalenko, I V; Naumov, P Yu; Papini, P; Pearce, M; Picozza, P; Popov, A V; Rappoldi, A; Ricciarini, S; Runtso, M F; Ryde, F; Serdin, O V; Sparvoli, R; Spillantini, P; Suchkov, S I; Tavani, M; Taraskin, A A; Tiberio, A; Tyurin, E M; Ulanov, M V; Vacchi, A; Vannuccini, E; Vasilyev, G I; Yurkin, Yu T; Zampa, N; Zirakashvili, V N; Zverev, V G

2015-01-01T23:59:59.000Z

264

Spherical Foams in Flat Space  

E-Print Network [OSTI]

Regular tesselations of space are characterized through their Schlafli symbols {p,q,r}, where each cell has regular p-gonal sides, q meeting at each vertex, and r meeting on each edge. Regular tesselations with symbols {p,3,3} all satisfy Plateau's laws for equilibrium foams. For general p, however, these regular tesselations do not embed in Euclidean space, but require a uniform background curvature. We study a class of regular foams on S^3 which, through conformal, stereographic projection to R^3 define irregular cells consistent with Plateau's laws. We analytically characterize a broad classes of bulk foam bubbles, and extend and explain recent observations on foam structure and shape distribution. Our approach also allows us to comment on foam stability by identifying a weak local maximum of A^(3/2)/V at the maximally symmetric tetrahedral bubble that participates in T2 rearrangements.

Carl D. Modes; Randall D. Kamien

2008-10-31T23:59:59.000Z

265

Computer aided architectural space planning  

E-Print Network [OSTI]

aspects of' the other tasks. For example, the determination of total spatial requirements requires an understanding of the organization's growth potential, acquisition of' new units or the decision to automate certain functions. Likewise... the organization, that the envir onment will not be sub ject to additional con- straints, or that the organization's objectives will not change, creating new demands on the space. There- fore it is necessary that some control function be constructed...

Schramek, Charles Wayne

1971-01-01T23:59:59.000Z

266

Continuous space-time transformations  

E-Print Network [OSTI]

We prove that every continuous map acting on the four-dimensional Minkowski space and preserving light cones in one direction only is either a Poincar\\'e similarity, that is, a product of a Lorentz transformation and a dilation, or it is of a very special degenerate form. In the presence of the continuity assumption the main tool in the proof is a basic result from the homotopy theory of spheres.

Clment de Seguins Pazzis; Peter emrl

2015-02-04T23:59:59.000Z

267

Relativity theory in time-space  

E-Print Network [OSTI]

The concept of time-space defined in an earlier paper of the author is certain generalization of the so-called space-time. In this paper we introduce the concept of time-space manifold. In the homogeneous case, the time-space manifold is a differentiable manifold with such tangent spaces which have certain fixed time-space structure. We redefine the fundamental concepts of global relativity theory with respect to this general situation. We study the concepts of affine connection, parallel transport, curvature tensor and Einstein equation, respectively.

kos G. Horvth

2014-11-05T23:59:59.000Z

268

Flags in Space: NASA Symbols and Flags in the U.S. Manned Space Program  

E-Print Network [OSTI]

Nixes Meatball, Lauds Worm, Space News, vol. 3, no. 23 (p. 2; Let the Logo Go, Space News, vol. 3, no. 23 (6-19Worm, letters to the editor, Space News, vol. 3, no. 27 (27

Platoff, Anne M.

269

Charge Distributions in Transverse Coordinate Space and in Impact Parameter Space  

E-Print Network [OSTI]

We study the charge distributions of the valence quarks inside nucleon in the transverse coordinate space, which is conjugate to the transverse momentum space. We compare the results with the charge distributions in the impact parameter space.

Dae Sung Hwang; Dong Soo Kim; Jonghyun Kim

2008-05-30T23:59:59.000Z

270

Large aperture diffractive space telescope  

DOE Patents [OSTI]

A large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary objective lens functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass "aiming" at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The objective lens includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the objective lens, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets which may be either earth bound or celestial.

Hyde, Roderick A. (Livermore, CA)

2001-01-01T23:59:59.000Z

271

Magnetic bags in hyperbolic space  

E-Print Network [OSTI]

A magnetic bag is an abelian approximation to a large number of coincident SU(2) BPS monopoles. In this paper we consider magnetic bags in hyperbolic space and derive their Nahm transform from the large charge limit of the discrete Nahm equation for hyperbolic monopoles. An advantage of studying magnetic bags in hyperbolic space, rather than Euclidean space, is that a range of exact charge N hyperbolic monopoles can be constructed, for arbitrarily large values of N, and compared with the magnetic bag approximation. We show that a particular magnetic bag (the magnetic disc) provides a good description of the axially symmetric N-monopole. However, an abelian magnetic bag is not a good approximation to a roughly spherical N-monopole that has more than N zeros of the Higgs field. We introduce an extension of the magnetic bag that does provide a good approximation to such monopoles and involves a spherical non-abelian interior for the bag, in addition to the conventional abelian exterior.

Bolognesi, Stefano; Sutcliffe, Paul

2015-01-01T23:59:59.000Z

272

From Outer Space to Green Space: An object oriented approach to classifying urban green space in Kuala Lumpur  

E-Print Network [OSTI]

The economic, social and environmental benefits of urban green space are increasingly recognized by governments and urban planners. However, efficient methodologies of quantifying and monitoring the state of urban green spaces are needed to keep...

Blacker, Stefanie

2009-11-26T23:59:59.000Z

273

Walking and the Reinvention of Space  

E-Print Network [OSTI]

Through the figure of the walker, this thesis considers the relationship between rhetoric and space, where rhetoric is understood as embodied, performative action and space is considered both as a material artifact and an ideological production...

Topinka, Robert

2011-04-20T23:59:59.000Z

274

Space Inventory Instructions Campus Planning and Facilities  

E-Print Network [OSTI]

Inventory Instructions Issued by: Campus Planning and Facilities Management Adelbert Hall, room 320 (216 2011 #12;2 | P a g e INTRODUCTION TO SPACE INVENTORY ............................................................................ 3 I. WHY SPACE INVENTORY IS REQUIRED

Cavusoglu, Cenk

275

NASA Creates Space Technology Mission Directorate  

E-Print Network [OSTI]

drew media attention and articles on 3D printing, including coverage by Popular Mechanics and website on 3D printing and prototyping technology to create parts for the Space Launch System at Marshall Space

276

MAPS BETWEEN CLASSIFYING SPACES AND APPLICATIONS by  

E-Print Network [OSTI]

MAPS BETWEEN CLASSIFYING SPACES AND APPLICATIONS space map(BG, BH) can be reduced to the case of simply connected Lie groups. Th* *is reduc- tion method allows some applications. For example a homotopy classificatio* *n of self maps BG

Notbohm, Dietrich

277

Building America Webinar: Retrofitting Central Space Conditioning...  

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

Introduction Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Introduction This presentation serves as the introduction to...

278

Ames Lab 101: Growing Crystals in Space  

ScienceCinema (OSTI)

Rohit Trivedi, distinguished professor of materials science and engineering, discusses his research with NASA to grow crystals in space.

Trivedi, Rohit

2012-08-29T23:59:59.000Z

279

Building America Webinar: High Performance Space Conditioning...  

Energy Savers [EERE]

Strategies for Affordable Housing Building America Webinar: High Performance Space Conditioning Systems, Part II - Air Distribution Retrofit Strategies for Affordable...

280

Mapping densities in a noisy state space  

E-Print Network [OSTI]

Weak noise smooths out fractals in a chaotic state space and introduces a maximum attainable resolution to its structure. The balance of noise and deterministic stretching/contraction in each neighborhood introduces local invariants of the dynamics that can be used to partition the state space. We study the local discrete-time evolution of a density in a two-dimensional hyperbolic state space, and use the asymptotic eigenfunctions for the noisy dynamics to formulate a new state space partition algorithm.

Domenico Lippolis

2013-03-05T23:59:59.000Z

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


281

Optimization Online - Vector Space Decomposition for Linear ...  

E-Print Network [OSTI]

Feb 26, 2015 ... Abstract: This paper describes a vector space decomposition algorithmic framework for linear programming guided by dual feasibility...

Jean Bertrand Gauthier

2015-02-26T23:59:59.000Z

282

DSm Vector Spaces of Refined Labels  

E-Print Network [OSTI]

In this book the authors introduce the notion of DSm vector spaces of refined labels. They also realize the refined labels as a plane and a n-dimensional space. Further, using these refined labels, several algebraic structures are defined. Finally DSm semivector space or refined labels is described. Authors also propose some research problems.

W. B. Vasantha Kandasamy; Florentin Smarandache

2011-12-02T23:59:59.000Z

283

Earth and Space Sciences Geochemistry 111  

E-Print Network [OSTI]

Earth and Space Sciences #12;Geochemistry 111 5 Earth and Space Sciences Research in the realm of Earth and Space Sci- ences focusses on the observation and qualitative and quantitative description of natural phenom- ena on Earth and in the Universe, on the detailed study and experimental and computational

Henkel, Werner

284

Atomic power in space: A history  

SciTech Connect (OSTI)

''Atomic Power in Space,'' a history of the Space Isotope Power Program of the United States, covers the period from the program's inception in the mid-1950s through 1982. Written in non-technical language, the history is addressed to both the general public and those more specialized in nuclear and space technologies. 19 figs., 3 tabs.

Not Available

1987-03-01T23:59:59.000Z

285

Coherent states in the fermionic Fock space  

E-Print Network [OSTI]

We construct the coherent states in the sense of Gilmore and Perelomov for the fermionic Fock space. Our treatment is from the outset adapted to the infinite-dimensional case. The fermionic Fock space becomes in this way a reproducing kernel Hilbert space of continuous holomorphic functions.

Robert Oeckl

2015-01-09T23:59:59.000Z

286

Special Relativity in Quantum Phase Space  

E-Print Network [OSTI]

A phase space treatment of special relativity of quantum systems is developed. In this approach a quantum particle remains localized if subject to inertial transformations, the localization occurring in a finite phase space area. Unlike non-relativistic transformations, relativistic transformations generally distort the phase space distribution function, being equivalent to aberrations in optics.

Daniela Dragoman

2008-03-06T23:59:59.000Z

287

EDUCATION AND SKILLS CASE FOR SPACE  

E-Print Network [OSTI]

THE EDUCATION AND SKILLS CASE FOR SPACE PAUL SPENCER AND GRAHAM HULBERT JUNE 2006 #12;#12;Contents: IMechE Survey 40 References 42 #12;The Education and Skills Case for Space Executive Summary Our survey found that space has a direct, positive effect on educational and career decisions and on participation

288

TSU Space Program Student Engagement Report  

E-Print Network [OSTI]

TSU Space Program Student Engagement Report FY 2012-2013 Mission Statement The Titan Student Centers Governing Board allocates space in the Titan Student Union each semester to give recognized clubs and organizations space to plan events, conduct small meetings and store club/organization property. Program

de Lijser, Peter

289

GSLIS Space Policy September 29, 2011  

E-Print Network [OSTI]

GSLIS Space Policy September 29, 2011 The Graduate School of Library and Information Science occupies all of the space in the building at 501 E. Daniel St., and its goal is to maximize the productive use of that space by GSLIS faculty, students, and staff. All GSLIS faculty, staff, and graduate

Gilbert, Matthew

290

Divisional Space Review and Development of a  

E-Print Network [OSTI]

Divisional Space Review and Development of a Master Plan Abbreviated Report: Executive Summary 2009 #12;EXECUTIVE SUMMARY The Space Review Committee was established by Dean Cristina Amon of the Committee for the Divisional Space Review and Development of a Master Plan. Section A provides valuable

291

Doctoral Programs Atmospheric, Oceanic & Space Sciences  

E-Print Network [OSTI]

Professor; Recipient, Teaching Innovation Prize; Michigan Distinguished Professor of the Year Allison Mission to Comet 67P / Churyumov- Gerasimenko · Solar and Heliospheric Physics Group · STEREO Mission,OceanicandSpaceSciences Atmospheric, Oceanic & Space Sciences University of Michigan Space Research Building 2455 Hayward Street Ann

Eustice, Ryan

292

Space Instrument Realization (ISR-5)  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSCharge CompensationSpace5

293

Space Week | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSChargeSpace Sciences

294

Can rodents conceive hyperbolic spaces?  

E-Print Network [OSTI]

The grid cells discovered in the rodent medial entorhinal cortex have been proposed to provide a metric for Euclidean space, possibly even hardwired in the embryo. Yet one class of models describing the formation of grid unit selectivity is entirely based on developmental self-organization, and as such it predicts that the metric it expresses should reflect the environment to which the animal has adapted. We show that, according to self-organizing models, if raised in a non-Euclidean hyperbolic cage rats should be able to form hyperbolic grids. For a given range of grid spacing relative to the radius of negative curvature of the hyperbolic surface, such grids are predicted to appear as multi-peaked firing maps, in which each peak has seven neighbours instead of the Euclidean six, a prediction that can be tested in experiments. We thus demonstrate that a useful universal neuronal metric, in the sense of a multi-scale ruler and compass that remain unaltered when changing environments, can be extended to other t...

Urdapilleta, Eugenio; Stella, Federico; Treves, Alessandro

2015-01-01T23:59:59.000Z

295

Solar thermophotovoltaic space power system  

SciTech Connect (OSTI)

A study has been performed on the technical feasibility and cost of a TPV system for an alternative space power supply. An analysis of six previous studies has been performed and a consistent optical, thermal, and electrical model developed. A search of the literature for materials data has been augmented by an experimental test program on materials and breadboard subsystems of the TPV. These data have been used in the model to determine the technical feasibility and the degree of performance that might be expected from such a system. A system design study was then conducted to optimize the launch configuration, the weight, and the cost of the TPV space power system. Results from this study were used to define a specific design which could be used in a detailed cost analysis. A cost analysis was then performed to determine the relative costs of the TPV power system. It appears that a system having a specific power greater than 150 W/kg can be produced for approximately 30 dollars per watt.

Horne, W.E. (Boeing Aerospace Co., Seattle, WA); Day, A.C. (NASA, Marshall Space Flight Center, Huntsville, AL)

1980-01-01T23:59:59.000Z

296

Cycle spaces in topological spaces Antoine Vella and R. Bruce Richter  

E-Print Network [OSTI]

Cycle spaces in topological spaces Antoine Vella and R. Bruce Richter University of Waterloo 19, and simplify previous work on cycle spaces of infinite graphs. We give simple topological criteria to show that the fundamental cycles of a (generalization of a) spanning tree generate the cycle space in a connected, compact

Richter, R. Bruce

297

Introduction Space-Efficient Karatsuba Space-Efficient FFT-Based Conclusions Fast and Small  

E-Print Network [OSTI]

Introduction Space-Efficient Karatsuba Space-Efficient FFT-Based Conclusions Fast and Small: Multiplying Polynomials without Extra Space Daniel S. Roche Symbolic Computation Group School of Computer Science University of Waterloo CECM Day SFU, Vancouver, 24 July 2009 #12;Introduction Space

Roche, Daniel S.

298

State-space models and methods for MIMO communication  

E-Print Network [OSTI]

Estimation with State-Space Models . . . . . . . . . . . 2.12.2 State-Space Models for MIMO WirelessEqualization via State- Space Deconvolution . . . . . . 4.1

Zhang, Chengjin

2007-01-01T23:59:59.000Z

299

Space Charge and Equilibrium Emittances in Damping Rings  

E-Print Network [OSTI]

SPACE CHARGE AND EQUILIBRIUM EMITTANCES IN DAMPING RINGS ?for the pos- sible impact of space charge on the equilibriumrings. INTRODUCTION Direct space charge effects have the

Venturini, Marco; Oide, Katsunobu; Wolski, Andy

2006-01-01T23:59:59.000Z

300

Transoral robotic assisted resection of the parapharyngeal space  

E-Print Network [OSTI]

of selected para- pharyngeal space tumors. Eur ArchHP, Kim SH. Parapharyngeal space surgery via a transoralof the parapharyngeal space Abie H. Mendelsohn, MD *

Mendelsohn, AH

2015-01-01T23:59:59.000Z

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


301

Literature review : reducing soft costs of rooftop solar installations attributed to structural considerations.  

SciTech Connect (OSTI)

Typical engineering methods utilized to calculate stresses on a roof structure involve simplifying assumptions that render a complex non-linear structure a simple and basic determinate beam. That is, instead of considering the composite action of the entire roof structure, the engineer evaluates only a single beam that is deemed conservatively to represent an affected rafter or top chord of a truss. This simplification based on assumptions of a complex problem is where significant conservatism can be introduced. Empirical data will be developed to evaluate this issue. Simple wood beams will be tested to failure. More complex and complete sections of roof structures that include composite action will also be tested to failure. The results can then be compared. An initial step in this process involves a literature review of any work that has been performed on roof structure composite action. The following section summarizes the literature review that was completed.

Dwyer, Stephen F.

2013-03-01T23:59:59.000Z

302

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

E-Print Network [OSTI]

H. 2002. Shade trees reduce building energy use and CO 22003. Potential energy savings in buildings by an urban treeestimates of tree-shade effects on residential energy use.

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

303

Better Buildings Alliance, Advanced Rooftop Unit Campaign: RTU Sizing Guidance (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet discusses the causes and consequences of incorrect RTU sizing (with respect to cooling tonnage and supply fan horsepower) and points to resources that can help ensure accurate sizing calculations.

Not Available

2014-09-01T23:59:59.000Z

304

Rooftop PV system. PV:BONUS Phase 3B, final technical report  

SciTech Connect (OSTI)

Under the PV:BONUS Program, ECD and United Solar developed, demonstrated and commercialized two new lightweight, flexible BIPV modules specifically designed as replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and can be used to address the even larger roofing-replacement market. An important design feature of these modules, which minimizes the installation and balance-of-system costs, is their ability to be installed by conventional roofing contractors without special training. The modules are fabricated from high-efficiency, triple-junction spectrum-splitting a-Si alloy solar cells developed by ECD and United Solar. These cells are produced on thin, flexible stainless steel substrates and encapsulated with polymer materials. The Phase 3 program began in August 1995. The principal tasks and goals of this program, which have all been successfully completed by ECD and United Solar, are described in the body and appendices of this report.

NONE

1998-11-01T23:59:59.000Z

305

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

E-Print Network [OSTI]

Report LBNL-51448, Berkeley, CA ESRI. 2008. ESRI ArcView 9.1A CASE STUDY IN SAN JOSE, CA Ronnen Levinson Hashem AkbariMS 90R2000 Berkeley, CA 94720 e-mail: RML27@cornell.edu e-

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

306

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

E-Print Network [OSTI]

solar-energy systems, including photovoltaic panels andsolar-energy systems, including photovoltaic panels and

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

307

Potential for Solar Energy on Rooftops in the Municipality of Uppsala.  

E-Print Network [OSTI]

?? Uppsala City Council has set up milestones for each decade from year 2020 to 2050 to steadily reduce the greenhouse gas emissions per capita (more)

Hammam, Jasmine; Johansson, Sara

2013-01-01T23:59:59.000Z

308

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

E-Print Network [OSTI]

a wider study of the solar access of California homes. High-computed. 2.3.7 Solar Access Violation California Publicrooftop solar access in various California cities, including

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

309

Seventh Annual Greening Rooftops for Sustainable Communities Conference, Awards and Trade Show  

E-Print Network [OSTI]

of Agastache rupestris (Lamiaceae) and Asclepias verticillata (Asclepiadaceae) during natural wet and dry Conference Proceedings 1 Session 3.3: Natives vs. Non-Natives, The Debate on the Merits of Each Continues of neighboring plants, such as Saguaro cactus seedlings, by cooling the soil and creating a favorable

Orians, Colin

310

Rooftop PV Potential for Scotland: Preliminary Analysis Professor Gareth Harrison and Dr Lucy Cradden  

E-Print Network [OSTI]

. Uncertainties An analysis of UK solar potential is based on a similar approach using aggregate land use data in suitable area to allow for shading and other effects. The solar PV potential per square metre of roof has was used to determine annual output for standard PV arrays in each location. It found annual production

Painter, Kevin

311

An investigation of the air flow structure over a rooftop in the turbulent atmospheric boundary layer  

E-Print Network [OSTI]

wind speed, the mean vertical wind speed, and the verticalA variation in the mean vertical wind speed was observed forpredominantly positive vertical wind speed, whereas the

Hayes, William Joseph

2010-01-01T23:59:59.000Z

312

Rooftop Unit Network Project - 2013 BTO Peer Review | Department of Energy  

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 Office of Inspector GeneralDepartment of Energy fromCommentsRevolving Loan Funds Revolving LoanA l iSoft CostsNetwork

313

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart  

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 Office of Inspector GeneralDepartment of Energy fromCommentsRevolving Loan Funds Revolving LoanA l iSoft

314

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System  

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 Office of Inspector GeneralDepartment of Energy fromCommentsRevolving Loan Funds Revolving LoanA l iSoftRTU Suite of

315

Rooftop Unit and Autonomous Control and Communication for RTU Network- Supermarket  

Broader source: Energy.gov [DOE]

Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Project Partner: Emerson - St. Louis, MO

316

Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar  

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:Year in Review: TopEnergyIDIQBusiness CompetitionDepartment ofNatural GasPower for U.S.

317

Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton  

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 Office of Inspector General Office of Audit Services Audit ReportNextConditionalDepartment Federal Employeepower at

318

Survivable pulse power space radiator  

DOE Patents [OSTI]

A thermal radiator system is described for use on an outer space vehicle, which must survive a long period of nonuse and then radiate large amounts of heat for a limited period of time. The radiator includes groups of radiator panels that are pivotally connected in tandem, so that they can be moved to deployed configuration wherein the panels lie largely coplanar, and to a stowed configuration wherein the panels lie in a stack to resist micrometerorite damage. The panels are mounted on a boom which separates a hot power source from a payload. While the panels are stowed, warm fluid passes through their arteries to keep them warm enough to maintain the coolant in a liquid state and avoid embrittlement of material. The panels can be stored in a largely cylindrical shell, with panels progressively further from the boom being of progressively shorter length. 5 figs.

Mims, J.; Buden, D.; Williams, K.

1988-03-11T23:59:59.000Z

319

Space nuclear power and man's extraterrestrial civilization  

SciTech Connect (OSTI)

This paper examines leading space nuclear power technology candidates. Particular emphasis is given the heat-pipe reactor technology currently under development at the Los Alamos National Laboratory. This program is aimed at developing a 10-100 kWe, 7-year lifetime space nuclear power plant. As the demand for space-based power reaches megawatt levels, other nuclear reactor designs including: solid core, fluidized bed, and gaseous core, are considered.

Angelo, J.J.; Buden, D.

1983-01-01T23:59:59.000Z

320

Superluminal transformations in complex Minkowski spaces  

SciTech Connect (OSTI)

We calculate the mixing of real and imaginary components of space and time under the influence of superluminal boots in the x direction. A unique mixing is determined for this superluminal Lorentz transformation when we consider the symmetry properties afforded by the inclusion of three temporal directions. Superluminal transformations in complex six-dimensional space exhibit unique tachyonic connections which have both remote and local space--time event connections.

Ramon, C.; Rauscher, E.A.

1980-08-01T23:59:59.000Z

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


321

Revisiting the conformal invariance of the scalar field: from Minkowski space to de Sitter space  

E-Print Network [OSTI]

In this article, we clarify the link between the conformal (i.e. Weyl) correspondence from the Minkowski space to the de Sitter space and the conformal (i.e. SO(2,$d$)) invariance of the conformal scalar field on both spaces. We exhibit the realization on de Sitter space of the massless scalar representation of SO$(2,d)$. It is obtained from the corresponding representation in Minkowski space through an intertwining operator inherited from the Weyl relation between the two spaces. The de Sitter representation is written in a form which allows one to take the point of view of a Minkowskian observer who sees the effect of curvature through additional terms.

E. Huguet; J. Queva; J. Renaud

2008-09-18T23:59:59.000Z

322

Space Conditioning Standing Technical Committee Strategic Plan...  

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

Committee Strategic Plan Space Conditioning Standing Technical Committee Strategic Plan This strategic plan document outlines the gaps, barriers, and opportunities identified by...

323

Transverse Entanglement Migration in Hilbert Space  

E-Print Network [OSTI]

We show that, although the amount of mutual entanglement of photons propagating in free space is fixed, the type of correlations between the photons that determine the entanglement can dramatically change during propagation. We show that this amounts to a migration of entanglement in Hilbert space, rather than real space. For the case of spontaneous parametric down conversion, the migration of entanglement in transverse coordinates takes place from modulus to phase of the bi-photon state and back again. We propose an experiment to observe this migration in Hilbert space and to determine the full entanglement.

K. W. Chan; J. P. Torres; J. H. Eberly

2007-04-18T23:59:59.000Z

324

Kepler Problem in the Constant Curvature Space  

E-Print Network [OSTI]

We present algebraic derivation of the result of Schr\\"{o}dinger [1] for the spectrum of hydrogen atom in the space with constant curvature.

G. Pronko

2007-06-04T23:59:59.000Z

325

Space and Remote Sensing (ISR-2)  

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

2 Space and Remote Sensing Developing and applying remote sensing capabilities to problems of global security and related sciences Contacts Group Leader Robert Shirey Email Deputy...

326

Space Electronics and Signal Processing (ISR-4)  

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

4 Space Electronics and Signal Processing Developing custom sensors, instruments, and systems for applications requiring advanced detection, monitoring, or assessment technologies...

327

Gauge Gravity and Space-Time  

E-Print Network [OSTI]

When we discuss problems on gravity, we can not avoid some fundamental physical problems, such as space-time, inertia, and inertial reference frame. The goal of this paper is to discuss the logic system of gravity theory and the problems of space-time, inertia, and inertial reference frame. The goal of this paper is to set up the theory on space-time in gauge theory of gravity. Based on this theory, it is possible for human kind to manipulate physical space-time on earth, and produce a machine which can physically prolong human's lifetime.

Ning Wu

2012-07-11T23:59:59.000Z

328

Space-time and G_2  

E-Print Network [OSTI]

A Weyl structure is a bundle over space-time, whose fiber at each space-time point is a space of maximally isotropic complex tangent planes. We develop the theory of Weyl connections for Weyl structures and show that the requirement that the connection be torsion-free fixes the Weyl connection uniquely. Further we show that to each such Weyl connection, there is naturally associated a (2, 3, 5)-Pfaffian system, as first analyzed by Cartan. We determine the associated G_2-conformal structure and calculate it explicitly in the cases of the Kapadia family of space-times and of the Schwarzschild solution

Boris Doubrov; Jonathan Holland; George Sparling

2009-01-05T23:59:59.000Z

329

A philosophy for space nuclear systems safety  

SciTech Connect (OSTI)

The unique requirements and contraints of space nuclear systems require careful consideration in the development of a safety policy. The Nuclear Safety Policy Working Group (NSPWG) for the Space Exploration Initiative has proposed a hierarchical approach with safety policy at the top of the hierarchy. This policy allows safety requirements to be tailored to specific applications while still providing reassurance to regulators and the general public that the necessary measures have been taken to assure safe application of space nuclear systems. The safety policy used by the NSPWG is recommended for all space nuclear programs and missions.

Marshall, A.C.

1992-08-01T23:59:59.000Z

330

Implicit Multifunction Theorems in complete metric spaces  

E-Print Network [OSTI]

Implicit Multifunction Theorems in complete metric spaces. Huynh Van Ngai ? Nguyen Huu Tron and. Michel Thra . Abstract. In this paper, we establish some...

2010-06-10T23:59:59.000Z

331

The Space Shuttle and Its Operations 53 Shuttle and  

E-Print Network [OSTI]

The Space Shuttle and Its Operations 53 The Space Shuttle and Its Operations The Space Shuttle Shuttle Builds the International Space Station #12;The Space Shuttle design was remarkable. The idea Space Telescope through refurbishments. The most impressive product that resulted from the shuttle

332

Design principles for the development of space technology maturation laboratories aboard the International Space Station  

E-Print Network [OSTI]

This thesis formulates seven design principles for the development of laboratories which utilize the International Space Station (ISS) to demonstrate the maturation of space technologies. The principles are derived from ...

Saenz Otero, Alvar, 1975-

2005-01-01T23:59:59.000Z

333

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

E-Print Network [OSTI]

The future of space exploration will not be limited to sortie-style missions to single destinations. Even in present exploration taking place at the International Space Station in low-Earth orbit, logistics is complicated ...

Grogan, Paul Thomas

334

Phase Space Constraints on Neutrino Luminosities  

E-Print Network [OSTI]

While the importance of phase space constraints for gravitational clustering of neutrinos (which are fermions) is well recognized, the explicit use of such constraints to limit neutrino emission from ultra energetic sources has not been stressed. Special and general relativistic phase space constraints are shown to limit neutrino luminosities in compact sources in various situations.

C. Sivaram; Kenath Arun; Samartha C A

2007-06-29T23:59:59.000Z

335

Basis adaptation in homogeneous chaos spaces  

SciTech Connect (OSTI)

We present a new method for the characterization of subspaces associated with low-dimensional quantities of interest (QoI). The probability density function of these QoI is found to be concentrated around one-dimensional subspaces for which we develop projection operators. Our approach builds on the properties of Gaussian Hilbert spaces and associated tensor product spaces.

Tipireddy, Ramakrishna, E-mail: tipiredd@usc.edu [Computational Mathematics Department, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352 (United States)] [Computational Mathematics Department, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352 (United States); Ghanem, Roger, E-mail: ghanem@usc.edu [210 KAP Hall, University of Southern California, Los Angeles, CA 90089 (United States)] [210 KAP Hall, University of Southern California, Los Angeles, CA 90089 (United States)

2014-02-15T23:59:59.000Z

336

Active Open Space (playing fields) in a  

E-Print Network [OSTI]

environmental and social benefits, the unintended consequence of implementing Bush Forever, Water Sensitive of the fringe growth sub- regions of Perth already have a shortage of active playing fields. The research as Regional Open Space, this shortage can only get worse. Background Open space is an inherent part

337

OFFER TO LEASE SPACE IN RESPONSE TO  

E-Print Network [OSTI]

. OTHER 1b. BUILDING ADDRESS sq. ft sq. ft sq. ft 1c. CITY 1d. STATE 4. LIVE FLOOR LOAD 5. MEASUREMENT _______________ - ____________ lbs./sq. ft SECTION II - SPACE OFFERED AND RATES INITIAL TERM RENEWAL OPTION TYPE OF SPACE FLOOR Full(F)/Partial

338

PROPOSAL TO LEASE SPACE IN RESPONSE TO  

E-Print Network [OSTI]

. OTHER 1b. BUILDING ADDRESS sq. ft sq. ft sq. ft 1c. CITY 1d. STATE 4. LIVE FLOOR LOAD 5. MEASUREMENT ___ ___ ___ ___ ___ - ___ ___ ___ ___ lbs./sq. ft SECTION II - SPACE OFFERED AND RATES INITIAL TERM RENEWAL OPTION TYPE OF SPACE FLOOR Full(F)/Partial

339

Space of Valuations March 14, 2008  

E-Print Network [OSTI]

Space of Valuations March 14, 2008 Introduction The general framework of this paper objects are represented by points of such a formal space. There are general methods to "eliminate" the use. This paper illustrates further this general program on the notion of valuations. They were introduced

Coquand, Thierry

340

Research in Space 2013 and Beyond  

E-Print Network [OSTI]

growth and test beds Earth and Space Science: Radiation, thermal, solar, geophysics and Earth Earth orbit to other destinations in our solar system. This orbiting laboratory is our species largest Center S.P.Korolev Rocket and Space Corporation Energia Mr. Jean Sabbagh National & International

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


341

National Aeronautics and Space Administration Status Report  

E-Print Network [OSTI]

Advisory Council Human Exploration and Operations Committee D. Marshall Porterfield PhD. Director, Space Life and Physical Sciences Human Exploration & Operations Mission Directorate #12;· ­ ­ ­ · · Space conduct fundamental and applied research to advance basic knowledge and to support human exploration

Waliser, Duane E.

342

Rigged Hilbert spaces for chaotic dynamical systems  

SciTech Connect (OSTI)

We consider the problem of rigging for the Koopman operators of the Renyi and the baker maps. We show that the rigged Hilbert space for the Renyi maps has some of the properties of a strict inductive limit and give a detailed description of the rigged Hilbert space for the baker maps. {copyright} {ital 1996 American Institute of Physics.}

Suchanecki, Z. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium)] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium); [Hugo Steinhaus Center and Institute of Mathematics, Wrocl/aw Technical University, ul. Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland); Antoniou, I. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium)] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium); [Theoretische Natuurkunde Free University of Brussels; Tasaki, S. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels, Belgium and] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels, Belgium and; [Institute for Fundamental Chemistry 34-4 Takano Nishihiraki-cho Kyoto 606 (Japan); Bandtlow, O.F. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium)] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium); [Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB30HE (United Kingdom)

1996-11-01T23:59:59.000Z

343

DREAM tool increases space weather predictions  

E-Print Network [OSTI]

- 1 - DREAM tool increases space weather predictions April 13, 2012 Predicting space weather improved by new DREAM modeling tool Earth's radiation belts can now be studied with a new modeling tool DREAM comes into play. Radiation belt structure and dynamics revealed DREAM is a modeling tool

344

Gravity in Complex Hermitian Space-Time  

E-Print Network [OSTI]

A generalized theory unifying gravity with electromagnetism was proposed by Einstein in 1945. He considered a Hermitian metric on a real space-time. In this work we review Einstein's idea and generalize it further to consider gravity in a complex Hermitian space-time.

Ali H. Chamseddine

2006-10-09T23:59:59.000Z

345

National Aeronautics and Space Administration Composite Cryotank  

E-Print Network [OSTI]

National Aeronautics and Space Administration Composite Cryotank Project Delivers Major Milestone A 2.4-meter-diameter propellant tank made of composite materials arrived on Nov. 20, 2012 at NASA's Marshall Space Flight Center in Huntsville, Ala., where engineers are preparing it for testing. Composite

Christian, Eric

346

The Bottom Line Space@Penn Upgrade  

E-Print Network [OSTI]

The Bottom Line Space@Penn Upgrade Coming Soon! A project is underway to upgrade the current that allows designated users in the field to update certain elements of their space. This project, whose: Grants & Projects ­ Used for invoice generation, overhead and revenue recognition, and award and project

Sharp, Kim

347

Collision Avoidance in Depth Space I. INTRODUCTION  

E-Print Network [OSTI]

; compute distances between the obstacles and the robot; optionally project the results in the CartesianCollision Avoidance in Depth Space I. INTRODUCTION When humans and robots share the same work space, safety is the primary issue of concern [8]. Secondary but not negligible is to prevent robot damages due

De Luca, Alessandro

348

National Aeronautics and Space Administration messengermichoud  

E-Print Network [OSTI]

in support of requirements for NASA's Space Launch System, or SLS. Multiple projects are scheduled through will stand about three stories tall once fully assem- bled. The work is scheduled for completion in June- tion of the Vertical Assembly Center. #12;World's Most Powerful Engine Blazes Path for Space Launch

349

Visualizing quantum mechanics in phase space  

E-Print Network [OSTI]

We examine the visualization of quantum mechanics in phase space by means of the Wigner function and the Wigner function flow as a complementary approach to illustrating quantum mechanics in configuration space by wave functions. The Wigner function formalism resembles the mathematical language of classical mechanics of non-interacting particles. Thus, it allows a more direct comparison between classical and quantum dynamical features.

Heiko Bauke; Noya Ruth Itzhak

2011-01-11T23:59:59.000Z

350

The Angular Momentum-Energy Space  

E-Print Network [OSTI]

In this paper we shall define and study the angular momentum-energy space for the classical problem of plane-motions of a particle situated in a potential field of a central force. We shall present the angular momentum-energy space for some important cases.

Dan Comanescu

2007-02-09T23:59:59.000Z

351

International Space Station: Access and Operations  

E-Print Network [OSTI]

flights per year · JAXA H-II Transfer Vehicle (HTV) and ESA Automated Transfer Vehicle (ATV) flights · Begin SpaceX and OSC Commercial Resupply Services (CRS) flights #12;ISS: CY 2011 Visiting Vehicle Plans*ISS: CY 2011 Visiting Vehicle Plans* Launches: RS = 10 US = 3 JAXA = 1 ESA = 1 SpaceX = 2 * As of January

352

National Aeronautics and Space Administration Sun  

E-Print Network [OSTI]

National Aeronautics and Space Administration Sun #12;National Aeronautics and Space Administration Sun LG-2001-08-527-HQ Our SUN has inspired mythology in almost all cultures, including ancient Egyptians, Aztecs, Native Americans, and Chinese. We now know that the Sun is a huge, bright sphere

Christian, Eric

353

Exploring Personal CoreSpace for DataSpace Yukun Li and Xiaofeng Meng  

E-Print Network [OSTI]

Exploring Personal CoreSpace for DataSpace Management Yukun Li and Xiaofeng Meng School increment of personal data amount, how to efficiently search Personal DataSpace(PDS) becomes an interesting. These queries can't be supported well by current personal data management tools. The aim of this paper

354

Medical Applications of Space Light-Emitting Diode Technology--Space Station and Beyond  

SciTech Connect (OSTI)

Space light-emitting diode (LED) technology has provided medicine with a new tool capable of delivering light deep into tissues of the body, at wavelengths which are biologically optimal for cancer treatment and wound healing. This LED technology has already flown on Space Shuttle missions, and shows promise for wound healing applications of benefit to Space Station astronauts.

Whelan, H.T.; Houle, J.M.; Donohoe, D.L.; Bajic, D.M.; Schmidt, M.H.; Reichert, K.W.; Weyenberg, G.T.; Larson, D.L.; Meyer, G.A.; Caviness, J.A.

1999-06-01T23:59:59.000Z

355

National Aeronautics and Space Administration Space power and energy Storage roadmap  

E-Print Network [OSTI]

National Aeronautics and Space Administration Space power and energy Storage roadmap Technology Energy Storage TA03-16 2.2.3. Power Management & Distribution (PMAD) TA03-17 2.2.3.1. PMAD Overall TA03 activities. This document presents the DRAFT Technology Area 03 input: Space Power and Energy Storage. NASA

Waliser, Duane E.

356

Pseudo-Z symmetric space-times  

SciTech Connect (OSTI)

In this paper, we investigate Pseudo-Z symmetric space-time manifolds. First, we deal with elementary properties showing that the associated form A{sub k} is closed: in the case the Ricci tensor results to be Weyl compatible. This notion was recently introduced by one of the present authors. The consequences of the Weyl compatibility on the magnetic part of the Weyl tensor are pointed out. This determines the Petrov types of such space times. Finally, we investigate some interesting properties of (PZS){sub 4} space-time; in particular, we take into consideration perfect fluid and scalar field space-time, and interesting properties are pointed out, including the Petrov classification. In the case of scalar field space-time, it is shown that the scalar field satisfies a generalized eikonal equation. Further, it is shown that the integral curves of the gradient field are geodesics. A classical method to find a general integral is presented.

Mantica, Carlo Alberto, E-mail: carloalberto.mantica@libero.it [Physics Department, Universit degli Studi di Milano, Via Celoria 16, 20133 Milano (Italy); Suh, Young Jin, E-mail: yjsuh@knu.ac.kr [Department of Mathematics, Kyungpook National University, Taegu 702-701 (Korea, Republic of)

2014-04-15T23:59:59.000Z

357

Radiation Effects in the Space Telecommunications Environment  

SciTech Connect (OSTI)

Trapped protons and electrons in the Earth's radiation belts and cosmic rays present significant challenges for electronics that must operate reliably in the natural space environment. Single event effects (SEE) can lead to sudden device or system failure, and total dose effects can reduce the lifetime of a telecommmiications system with significant space assets. One of the greatest sources of uncertainty in developing radiation requirements for a space system is accounting for the small but finite probability that the system will be exposed to a massive solar particle event. Once specifications are decided, standard laboratory tests are available to predict the total dose response of MOS and bipolar components in space, but SEE testing of components can be more challenging. Prospects are discussed for device modeling and for the use of standard commercial electronics in space.

Fleetwood, Daniel M.; Winokur, Peter S.

1999-05-17T23:59:59.000Z

358

Entanglement renormalization in free bosonic systems: real-space versus momentum-space renormalization group transforms  

E-Print Network [OSTI]

The ability of entanglement renormalization (ER) to generate a proper real-space renormalization group (RG) flow in extended quantum systems is analysed in the setting of harmonic lattice systems in D=1 and D=2 spatial dimensions. A conceptual overview of the steps involved in momentum-space RG is provided and contrasted against the equivalent steps in the real-space setting. The real-space RG flow, as generated by ER, is compared against the exact results from momentum-space RG, including an investigation of a critical fixed point and the effect of relevant and irrelevant perturbations.

G. Evenbly; G. Vidal

2010-03-05T23:59:59.000Z

359

Quantum tomography with wavelet transform in Banach space on Homogeneous space  

E-Print Network [OSTI]

The intimate connection between the Banach space wavelet reconstruction method on homogeneous spaces with both singular and nonsingular vacuum vectors, and some of well known quantum tomographies, such as: Moyal-representation for a spin, discrete phase space tomography, tomography of a free particle, Homodyne tomography, phase space tomography and SU(1,1) tomography is explained. Also both the atomic decomposition and banach frame nature of these quantum tomographic examples is explained in details. Finally the connection between the wavelet formalism on Banach space and Q-function is discussed.

M. A. Jafarizadeh; M. Mirzaee; M. Rezaee

2008-01-25T23:59:59.000Z

360

Metastring Theory and Modular Space-time  

E-Print Network [OSTI]

String theory is canonically accompanied with a space-time interpretation which determines S-matrix-like observables, and connects to the standard physics at low energies in the guise of local effective field theory. Recently, we have introduced a reformulation of string theory which does not rely on an {\\it a priori} space-time interpretation or a pre-assumption of locality. This \\hlt{metastring theory} is formulated in such a way that stringy symmetries (such as T-duality) are realized linearly. In this paper, we study metastring theory on a flat background and develop a variety of technical and interpretational ideas. These include a formulation of the moduli space of Lorentzian worldsheets, a careful study of the symplectic structure and consequently consistent closed and open boundary conditions, and the string spectrum and operator algebra. What emerges from these studies is a new quantum notion of space-time that we refer to as a quantum Lagrangian or equivalently a \\hlt{modular space-time}. This concept embodies the standard tenets of quantum theory and implements in a precise way a notion of {relative locality}. The usual string backgrounds (non-compact space-time along with some toroidally compactified spatial directions) are obtained from modular space-time by a limiting procedure that can be thought of as a correspondence limit.

Laurent Freidel; Robert G. Leigh; Djordje Minic

2015-02-27T23:59:59.000Z

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


361

Computational procedures for weighted projective spaces  

E-Print Network [OSTI]

This is a pdf print of the homonymous Maple file, freely available at http://www.maplesoft.com/applications/view.aspx?SID=127621, providing procedures which are able to produce the toric data associated with a (polarized) weighted projective space i.e. fans, polytopes and their equivalences. More originally it provides procedures which are able to detect a weights vector Q starting from either a fan or a polytope: we will call this process the recognition of a (polarized) weighted projective space. Moreover it gives procedures connecting polytopes of a polarized weighted projective space with an associated fan and viceversa.

Rossi, Michele

2011-01-01T23:59:59.000Z

362

Eddy current measurement of tube element spacing  

DOE Patents [OSTI]

A method of electromagnetically measuring the distance between adjacent tube elements in a heat exchanger. A cylindrical, high magnetic permeability ferrite slug is placed in the tube adjacent the spacing to be measured. A bobbin or annular coil type probe operated in the absolute mode is inserted into a second tube adjacent the spacing to be measured. From prior calibrations on the response of the eddy current coil, the signals from the coil, when sensing the presence of the ferrite slug, are used to determine the spacing between the tubes.

Latham, Wayne Meredith (Forest, VA); Hancock, Jimmy Wade (Lynchburg, VA); Grut, Jayne Marie (Madison Heights, VA)

1998-01-01T23:59:59.000Z

363

State of Spacef p State of Space 2009  

E-Print Network [OSTI]

State of Spacef p 2009 State of Space 2009 DRAFT ­ For Discussion Only #12;UW Space throughout the World Owned or Leased State of Space 2009 DRAFT ­ For Discussion Only *Space recorded with the Office of Planning & Budgeting or the Real Estate Office #12;UW Space throughout the United States Owned or Leased

Van Volkenburgh, Elizabeth

364

A Blended Space for Tourism: Genesee Village Country & Museum  

E-Print Network [OSTI]

A Blended Space for Tourism: Genesee Village Country & Museum Abstract Blended spaces are spaces on this enables us to provide general guidance and framework on the design of blended spaces for digital tourism. Author Keywords Design, Tourism, Blended Spaces, User Experience ACM Classification Keywords H.5.2 User

Deussen, Oliver

365

Social catalysts : embracing communication in mediated spaces  

E-Print Network [OSTI]

Mediated communication between public spaces is a relatively new concept. One current example of this interaction is video conferencing among people within the same organization. Large scale video-conferencing walls have ...

Karahalios, Kyratso G., 1972-

2004-01-01T23:59:59.000Z

366

Virtual tour: INL's space battery facility  

SciTech Connect (OSTI)

This virtual tour shows how INL fuels and tests nuclear power systems for deep space missions. To learn more about INL's contribution to the Mars Science Laboratory, visit http://www.inl.gov/marsrover.

Johnson, Steve

2011-01-01T23:59:59.000Z

367

Radon Transform in Finite Dimensional Hilbert Space  

E-Print Network [OSTI]

Novel analysis of ?nite dimensional Hilbert space is outlined. The approach bypasses general, inherent, di?culties present in handling angular variables in ?nite dimensional problems: The ?nite dimensional, d, Hilbert space operators are underpinned with ?nite geometry which provide intuitive perspective to the physical operators. The analysis emphasizes a central role for projectors of mutual unbiased bases (MUB) states, extending thereby their use in ?nite dimensional quantum mechanics studies. Interrelation among the Hilbert space operators revealed via their (?nite) dual a?ne plane geometry (DAPG) underpinning are displayed and utilized in formulating the ?nite dimensional ubiquitous Radon transformation and its inverse illustrating phase space-like physics encoded in lines and points of the geometry. The ?nite geometry required for our study is outlined.

M. Revzen

2012-02-06T23:59:59.000Z

368

Cargo revenue management for space logistics  

E-Print Network [OSTI]

This thesis covers the development of a framework for the application of revenue management, specifically capacity control, to space logistics for use in the optimization of mission cargo allocations, which in turn affect ...

Armar, Nii A

2009-01-01T23:59:59.000Z

369

ASTRONAUTICS & SPACE ASTE OVERVIEW PROGRAMS AVAILABLE  

E-Print Network [OSTI]

FLOWCHARTS Astronautical engineers design, build and operate space vehicles used in exploration of molecular interaction, and reconfigurable autonomous robots. PROGRAMS AVAILABLE Astronautical Engineering. Liquid- and solid-fueled rockets. Nuclear and electric propulsion. (Duplicates credit in former AME 473

Rohs, Remo

370

Confined Space Entry Permit Department: _________________________________________ Date: _____________________  

E-Print Network [OSTI]

/A Controls: ________________________________________________________________________ Energy: electrical harness on each entrant Retrieval system assembled entry rescue Company no potential or actual atmospheric hazards; and All hazards have been eliminated without entry into the space

Cohen, Ronald C.

371

Accelerating Cosmologies with Extended Product Spaces  

E-Print Network [OSTI]

Accelerating cosmologies in extra dimensional spaces have been studied. These extra dimensional spaces are products of many spaces. The physical behaviors of accelerating cosmologies are investigated from Einstein's field equation in higher dimensional Friedmann-Robertson-Walker (FRW) universe and superstring/M theory points of view. It is found that if some assumptions of flatness are made for sector of the FRW universe, the remaining sector needs to be hyperbolic. These properties are in parallel with those found in the model of superstring/M theory. The extended product made for the superstring model did not show any more new features other than those already found. A similar accelerating phase of this product space cosmology was found with difference in numerical values of the accelerating period.

Han Siong Ch'ng

2008-10-15T23:59:59.000Z

372

Analysis on q-deformed quantum spaces  

E-Print Network [OSTI]

A q-deformed version of classical analysis is given to quantum spaces of physical importance, i.e. Manin plane, q-deformed Euclidean space in three or four dimensions, and q-deformed Minkowski space. The subject is presented in a rather complete and selfcontained way. All relevant notions are introduced and explained in detail. The different possibilities to realize the objects of q-deformed analysis are discussed and their elementary properties are studied. In this manner attention is focused on star products, q-deformed tensor products, q-deformed translations, q-deformed partial derivatives, dual pairings, q-deformed exponentials, and q-deformed integration. The main concern of this work is to show that these objects fit together in a consistent framework, which is suitable to formulate physical theories on quantum spaces.

Hartmut Wachter

2006-04-13T23:59:59.000Z

373

Bimanual cross-coupling in space telerobotics  

E-Print Network [OSTI]

Astronauts spend much time training to control the robotic arm aboard the International Space Station, and must perform a variety of challenging, three-dimensional tasks. They use a unique, bimanual control system to control ...

Wang, Victor, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

374

State space models, filtering and environmental applications  

E-Print Network [OSTI]

;Section 1 Introductory Examples Postprocessing of numerical weather predictions Data assimilation for weather prediction Stochastic reaction networks Rare event estimation Basics of state space models Numerical weather predictions (MWP) are deterministic with high spatial and temporal resolution. Statistical

Künsch, Hans Rudolf

375

Open Space Stewardship Program 2013 Celebration  

Broader source: Energy.gov [DOE]

Students in grades K through 12 are involved in authentic environmental research on properties in their own communities, fostering a sense of ownership and responsibility for open space within...

376

Virtual tour: INL's space battery facility  

ScienceCinema (OSTI)

This virtual tour shows how INL fuels and tests nuclear power systems for deep space missions. To learn more about INL's contribution to the Mars Science Laboratory, visit http://www.inl.gov/marsrover.

Johnson, Steve

2013-05-28T23:59:59.000Z

377

Open Space Stewardship Workshop for Secondary Teachers  

Broader source: Energy.gov [DOE]

This practical, hands-on workshop provides an opportunity to experience the equipment and field techniques that are useful in Open Space Stewardship Program. The four day workshop (July 15-19 2013)...

378

Spacing innovation and learning in design organizations  

E-Print Network [OSTI]

The main research question of this thesis is the following: What is the relationship between spaces and innovation in the context of design organizations such as IDEO, the MIT Media Lab and Design Continuum? This thesis ...

Garca Herrera, Cristbal, 1974-

2004-01-01T23:59:59.000Z

379

National Aeronautics and Space Administration Washington, DC  

E-Print Network [OSTI]

National Aeronautics and Space Administration Washington, DC NASA ADVISORY COUNCIL PLANETARY, including Discovery @15 and Satellites of the Outer Solar System. The next workshop, Planetary Atmospheres (GRAIL)--a lunar mission, Origins Spectral Interpretation, Resource Identification, and Security (OSIRIS

Rathbun, Julie A.

380

Geometry of Feasible Spaces of Tensors  

E-Print Network [OSTI]

Due to the exponential growth of the dimension of the space of tensors V_(1)? ?V_(n), any naive method of representing these tensors is intractable on a computer. In practice, we consider feasible subspaces (subvarieties) which are defined...

Qi, Yang

2013-07-17T23:59:59.000Z

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


381

PUPIL : constructing the space of visual attention  

E-Print Network [OSTI]

This thesis explores the nature of a human experience in space through a primary inquiry into vision. This inquiry begins by questioning the existing methods and instruments employed to capture and represent a human ...

Kassner, Moritz Philipp

2012-01-01T23:59:59.000Z

382

AMS, a particle spectrometer in space  

E-Print Network [OSTI]

The results of the AMS01 experiment are reviewed. The proton flux measured below the geomagnetic cutoff is interpreted. Some Physics prospects for AMS02 on the International Space Station are outlined.

M. Buenerd

2001-07-20T23:59:59.000Z

383

Geometrical transformations in higher dimensional Euclidean spaces  

E-Print Network [OSTI]

Orientations and rotations in n-dimensional real Euclidean spaces (R[n]) are represented by proper orthogonal, or skew-symmetric matrices. A mathematical formulation that leads to these representations is presented. Orientations and rotations...

Sanyal, Amit Kumar

2001-01-01T23:59:59.000Z

384

"Dark energy" as conformal dynamics of space  

E-Print Network [OSTI]

The exact solution for dynamic of conform-flat space homogeneous since dynamic equation is given. Conform mode of space metric changing in Global time theory has negative energy density. Swap of energy to this mode from another ones lead to increasing of Universe homogeneity although probability of this swap from local objects is negligibly small. Conform mode is corresponding to "dark energy" in observation astronomy.

D. Burlankov

2006-10-23T23:59:59.000Z

385

Small Reactor for Deep Space Exploration  

SciTech Connect (OSTI)

This is the first demonstration of a space nuclear reactor system to produce electricity in the United States since 1965, and an experiment demonstrated the first use of a heat pipe to cool a small nuclear reactor and then harvest the heat to power a Stirling engine at the Nevada National Security Site's Device Assembly Facility confirms basic nuclear reactor physics and heat transfer for a simple, reliable space power system.

None

2012-11-29T23:59:59.000Z

386

Optimum phase space probabilities from quantum tomography  

SciTech Connect (OSTI)

We determine a positive normalised phase space probability distribution P with minimum mean square fractional deviation from the Wigner distribution W. The minimum deviation, an invariant under phase space rotations, is a quantitative measure of the quantumness of the state. The positive distribution closest to W will be useful in quantum mechanics and in time frequency analysis. The position-momentum correlations given by the distribution can be tested experimentally in quantum optics.

Roy, Arunabha S., E-mail: roy.arunabha@gmail.com [King's College, London (United Kingdom); Roy, S. M., E-mail: smroy@hbcse.tifr.res.in [HBCSE, Tata Institute of Fundamental Research, Mumbai (India)

2014-01-15T23:59:59.000Z

387

Exact Philosophy of Space-Time  

E-Print Network [OSTI]

Starting from Bunge's (1977) scientific ontology, we expose a materialistic relational theory of space-time, that carries out the program initiated by Leibniz, and provides a protophysical basis consistent with any rigorous formulation of General Relativity. Space-time is constructed from general concepts which are common to any consistent scientific theory and they are interpreted as emergent properties of the greatest assembly of things, namely, the world.

Hctor Vucetich

2011-09-26T23:59:59.000Z

388

Ramanujan's Master Theorem for Riemannian symmetric spaces  

E-Print Network [OSTI]

Ramanujan's Master theorem states that, under suitable conditions, the Mellin transform of a power series provides an interpolation formula for the coefficients of this series. Based on the duality of Riemannian symmetric spaces of compact and noncompact type inside a common complexification, we prove an analogue of Ramanujan's Master Theorem for the spherical Fourier transform of a spherical Fourier series. This extend the results proven by Bertram for Riemannian symmetric spaces of rank-one.

Olafsson, Gestur

2011-01-01T23:59:59.000Z

389

State visibility in Q-bit space  

E-Print Network [OSTI]

We study by comparison the structure of singlet type states in Q-bit space in the light of quantum and classical paradigms. It is shown that only the classical paradigm implies a variation in the visibility of correlation coefficients, that has been observed in fact in experiments. We conclude that Q-bit space in not a appropriate venue for an EPR test of quantum completeness.

A. F. Kracklauer

2007-03-04T23:59:59.000Z

390

Dynamic Algorithm for Space Weather Forecasting System  

E-Print Network [OSTI]

for the designation as UNDERGRADUATE RESEARCH SCHOLAR April 2010 Major: Nuclear Engineering DYNAMIC ALGORITHM FOR SPACE WEATHER FORECASTING SYSTEM A Junior Scholars Thesis by LUKE DUNCAN FISCHER Submitted to the Office of Undergraduate... 2010 Major: Nuclear Engineering iii ABSTRACT Dynamic Algorithm for Space Weather Forecasting System. (April 2010) Luke Duncan Fischer Department of Nuclear Engineering Texas A&M University Research Advisor: Dr. Stephen Guetersloh...

Fischer, Luke D.

2011-08-08T23:59:59.000Z

391

Small Reactor for Deep Space Exploration  

ScienceCinema (OSTI)

This is the first demonstration of a space nuclear reactor system to produce electricity in the United States since 1965, and an experiment demonstrated the first use of a heat pipe to cool a small nuclear reactor and then harvest the heat to power a Stirling engine at the Nevada National Security Site's Device Assembly Facility confirms basic nuclear reactor physics and heat transfer for a simple, reliable space power system.

None

2014-05-30T23:59:59.000Z

392

Chiral gap effect in curved space  

E-Print Network [OSTI]

We discuss a new type of QCD phenomenon induced in curved space. In the QCD vacuum a mass gap of Dirac fermions is attributed to the spontaneous breaking of chiral symmetry. If the curvature is positive large, the chiral condensate melts but a chiral invariant mass gap can still remain, which we name the chiral gap effect in curved space. This leads to decoupling of quark deconfinement which implies a view of black holes surrounded by a first-order QCD phase transition.

Antonino Flachi; Kenji Fukushima

2014-06-25T23:59:59.000Z

393

Flying on Sun Shine: Sailing in Space  

SciTech Connect (OSTI)

On January 20th, 2011, NanoSail-D successfully deployed its sail in space. It was the first solar sail vehicle to orbit the earth and the second sail ever unfurled in space. The 10m2 sail, deployment mechanism and electronics were packed into a 3U CubeSat with a volume of about 3500cc. The NanoSail-D mission had two objectives: eject a nanosatellite from a minisatellite; deploy its sail from a highly compacted volume to validate large structure deployment and potential de-orbit technologies. NanoSail-D was jointly developed by NASA's Marshall Space Flight Center and Ames Research Center. The ManTech/NeXolve Corporation provided key sail design support. NanoSail-D is managed by Marshall and jointly sponsored by the Army Space and Missile Defense Command, the Space Test Program, the Von Braun Center for Science and Innovation and Dynetics Inc. The presentation will provide insights into sailcraft advances and potential missions enabled by this emerging in-space propulsion technology.

Alhorn, Dean (NASA, Marshall Space Flight Center) [NASA, Marshall Space Flight Center

2012-03-28T23:59:59.000Z

394

Guide to Space groups There are only 230 ways (space groups) to describe how identical objects can be  

E-Print Network [OSTI]

Guide to Space groups There are only 230 ways (space groups) to describe how identical objects can but it gets better than that! If your structure contains a chrial center then any space group that has a mirror or an inversion operation can be rejected. Of the 230 space groups only 74 space groups

Meagher, Mary

395

Design Space Exploration of Parameterized Systems using Design of Experiments  

E-Print Network [OSTI]

13 2.1 Design space exploration for system specific tuningShin Figure 5: Noxim NoC design space with over 60,00030: Percent of the design space that needs to be explored in

Sheldon, David

2011-01-01T23:59:59.000Z

396

Unusual light in dark space revealed by Los Alamos, NASA  

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

Unusual light in dark space revealed by Los Alamos, NASA Unusual light in dark space revealed by Los Alamos, NASA By looking at the dark spaces between visible galaxies and stars...

397

'AdS_5' Geometry Beyond Space-time and 4D Noncommutative Space-time  

E-Print Network [OSTI]

We discuss a 4D noncommutative space-time as suggested by the version of quantum (deformed) relativity which provides a classical geometry picture as an `AdS_5'. The 4D noncommutative space-time is more like a part of a phase space description, in accordance with the quantum notion -- quantum mechanics talks about only states but not configurations. The `AdS_5' picture also illustrates the classical 4D space-time is to be described as part of a bigger geometry beyond space-time at the quantum level. The radically new picture of quantum 'space-time' is expected to provide the basis for a (still to be formulated) new approach to quantum gravity with fundamental constants (quantum) hbar and Newton's constant G put at a similar level as c, the speed of light.

Otto C. W. Kong

2009-06-19T23:59:59.000Z

398

Generalized space-charge limited current and virtual cathode behaviors in one-dimensional drift space  

SciTech Connect (OSTI)

This paper reports the space-charge limited current (SLC) and virtual cathode behaviors in one-dimensional grounded drift space. A simple general analytical solution and an approximate solution for the planar diode are given. Through a semi-analytical method, a general solution for SLC in one-dimensional drift space is obtained. The behaviors of virtual cathode in the drift space, including dominant frequency, electron transit time, position, and transmitted current, are yielded analytically. The relationship between the frequency of the virtual cathode oscillation and the injected current presented may explain previously reported numerical works. Results are significant in facilitating estimations and further analytical studies.

Yang, Zhanfeng; Liu, Guozhi [Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China) [Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China); Northwest Institute of Nuclear Technology, P.O. Box 69-13, Xi'an 710024 (China); Shao, Hao; Chen, Changhua; Sun, Jun [Northwest Institute of Nuclear Technology, P.O. Box 69-13, Xi'an 710024 (China)] [Northwest Institute of Nuclear Technology, P.O. Box 69-13, Xi'an 710024 (China)

2013-10-15T23:59:59.000Z

399

Space-time attributes of physical objects and the laws of space-time physics  

E-Print Network [OSTI]

Physical time intervals are attributes of single physical object whereas physical space intervals are a relational attribute of two physical objects. Some consequences of the breaking of the space-time exchange symmetry inherent in the Lorentz transformation following from the above distinction are investigated. In particular, it is shown that the relativity of simultaneity and length contraction effects which naively follow from space-time symmetry of the Lorentz transformation do not occur. Seven laws describing the relation between observations of space intervals, time intervals and velocities in different reference frames are given. Only two of these laws are respected by conventional special relativity theory.

J. H. Field

2008-09-24T23:59:59.000Z

400

Before the House Science, Space, and Technology Subcommittee...  

Energy Savers [EERE]

Science, Space, and Technology Subcommittee on Energy and Environment Before the House Science, Space, and Technology Subcommittee on Energy and Environment Testimony of Scott...

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


401

Modesto Memorial Hospital Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Memorial Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Modesto Memorial Hospital Space Heating Low Temperature Geothermal Facility...

402

Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility...

403

Walley's Hot Springs Resort Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Walley's Hot Springs Resort Space Heating Low Temperature Geothermal Facility Facility Walley's...

404

Senior Citizens' Center Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Senior Citizens' Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Senior Citizens' Center Space Heating Low Temperature Geothermal Facility...

405

Steamboat Villa Hot Springs Spa Space Heating Low Temperature...  

Open Energy Info (EERE)

Villa Hot Springs Spa Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Steamboat Villa Hot Springs Spa Space Heating Low Temperature Geothermal...

406

Shared Space vs. In-Unit Upgrades in Multifamily Buildings |...  

Energy Savers [EERE]

Shared Space vs. In-Unit Upgrades in Multifamily Buildings Shared Space vs. In-Unit Upgrades in Multifamily Buildings Better Buildings Neighborhood Program Multifamily Peer...

407

Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Shoshone Motel & Trailer Park Space Heating Low Temperature...

408

Warm Springs State Hospital Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility...

409

Warner Springs Ranch Resort Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warner Springs Ranch Resort Space Heating Low Temperature Geothermal Facility Facility Warner...

410

Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Calientes Trailer Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...

411

Wiesbaden Motel & Health Resort Space Heating Low Temperature...  

Open Energy Info (EERE)

Motel & Health Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Wiesbaden Motel & Health Resort Space Heating Low Temperature Geothermal...

412

Pagosa Springs Private Wells Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Private Wells Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Pagosa Springs Private Wells Space Heating Low Temperature Geothermal Facility...

413

Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Facility...

414

Hot Springs National Park Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

National Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hot Springs National Park Space Heating Low Temperature Geothermal Facility...

415

Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...  

Open Energy Info (EERE)

Athletic Club & Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...

416

Salida Hot Springs (Poncha Spring) Space Heating Low Temperature...  

Open Energy Info (EERE)

Salida Hot Springs (Poncha Spring) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Salida Hot Springs (Poncha Spring) Space Heating Low...

417

Klamath Apartment Buildings (13) Space Heating Low Temperature...  

Open Energy Info (EERE)

Apartment Buildings (13) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath Apartment Buildings (13) Space Heating Low Temperature...

418

Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Springs Ranch Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal Facility...

419

Merle West Medical Center Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Merle West Medical Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Merle West Medical Center Space Heating Low Temperature Geothermal...

420

Maywood Industries of Oregon Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Maywood Industries of Oregon Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Maywood Industries of Oregon Space Heating Low Temperature...

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


421

Active-space completely-renormalized equation-of-motioncoupled...  

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

space completely-renormalized equation-of-motion coupled-clusterformalism: Excited-state studies of green fluorescent Active-space completely-renormalized equation-of-motion...

422

Thermoelectrics: From Space Power Systems to Terrestrial Waste...  

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

Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications...

423

East Middle School and Cayuga Community College Space Heating...  

Open Energy Info (EERE)

Middle School and Cayuga Community College Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name East Middle School and Cayuga Community College Space...

424

Cedarville Elementary & High School Space Heating Low Temperature...  

Open Energy Info (EERE)

Elementary & High School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Cedarville Elementary & High School Space Heating Low Temperature...

425

SPACE UTILIZATION STUDY -EXECUTIVE SUMMARY SCHOOL OF MEDICINE & HEALTH SCIENCES  

E-Print Network [OSTI]

SPACE UTILIZATION STUDY - EXECUTIVE SUMMARY SCHOOL OF MEDICINE & HEALTH SCIENCES UNIVERSITY School of Medicine & Health Sciences - Space Utilization Study Grand Forks, ND EXECUTIVE SUMMARY SUITAb utilities. · Lackofnaturallight

Delene, David J.

426

Space Mapping: Models, Sensitivities, and Trust-Regions Methods 1 ...  

E-Print Network [OSTI]

We consider also a di erent perspective of space mapping and apply it, ... built by composition of the space mapping and the coarse model is a regular function.

427

A Criterion Space Search Algorithm for Biobjective Mixed Integer ...  

E-Print Network [OSTI]

We present the first criterion space search algorithm, the triangle splitting algorithm, for finding ... In this paper, we continue our pursuit of criterion space search.

2015-01-08T23:59:59.000Z

428

James Webb Space Telescope: PM Lessons Applied - Eric Smith,...  

Energy Savers [EERE]

James Webb Space Telescope: PM Lessons Applied - Eric Smith, Deputy Program Director, NASA James Webb Space Telescope: PM Lessons Applied - Eric Smith, Deputy Program Director,...

429

Before the Subcommittee on Energy -- House Science, Space, and...  

Office of Environmental Management (EM)

on Energy -- House Science, Space, and Technology Committee Testimony of Christopher Smith, Acting Assistant Secretary Before the Subcommittee on Energy -- House Science, Space,...

430

Orbits design for Leo space based solar power satellite system.  

E-Print Network [OSTI]

?? Space Based Solar Power satellites use solar arrays to generate clean, green, and renewable electricity in space and transmit it to earth via microwave, (more)

Addanki, Neelima Krishna Murthy

2011-01-01T23:59:59.000Z

431

A space of intersections : campus- based Women's centers and the third space between public and private spheres  

E-Print Network [OSTI]

to take a nap as it is a space to be awakened. Referencesthe (n)either/(n)or of third space: (re) presenting hybridNegotiations in the Third Space. Feminist theology, 13(1),

Dela Pea, Emelyn A.

2009-01-01T23:59:59.000Z

432

Quasi-orthogonal space-frequency and space-time-frequency block codes for MIMO OFDM channels  

E-Print Network [OSTI]

Lu and X. Wang, Space-time code design in OFDM systems, inSpace-time block codes from orthogonal designs, IEEE Trans.orthogonal space- time block codes with full diversity,

Fazel, Fatemeh; Jafarkhani, Hamid

2008-01-01T23:59:59.000Z

433

Metastring Theory and Modular Space-time  

E-Print Network [OSTI]

String theory is canonically accompanied with a space-time interpretation which determines S-matrix-like observables, and connects to the standard physics at low energies in the guise of local effective field theory. Recently, we have introduced a reformulation of string theory which does not rely on an {\\it a priori} space-time interpretation or a pre-assumption of locality. This \\hlt{metastring theory} is formulated in such a way that stringy symmetries (such as T-duality) are realized linearly. In this paper, we study metastring theory on a flat background and develop a variety of technical and interpretational ideas. These include a formulation of the moduli space of Lorentzian worldsheets, a careful study of the symplectic structure and consequently consistent closed and open boundary conditions, and the string spectrum and operator algebra. What emerges from these studies is a new quantum notion of space-time that we refer to as a quantum Lagrangian or equivalently a \\hlt{modular space-time}. This conce...

Freidel, Laurent; Minic, Djordje

2015-01-01T23:59:59.000Z

434

The Space Power Grid: Synergy Between Space, Energy and Security Policies  

E-Print Network [OSTI]

­ Space solar power, renewable energy, climate policy, global warming, infrastructure, power grid and advantages of space-based versus terrestrial solar power generation. The two great advantages are (1.1% of the total solar energy falling on Earth, and conceivably, lenses in solar orbit could collect solar

435

Serving the Marshall Space Flight Center Community National Aeronautics and Space Administration  

E-Print Network [OSTI]

Serving the Marshall Space Flight Center Community National Aeronautics and Space Administration July 1, 2010 #12;2 July 1, 2010 Director's Corner This year we're celebrating Marshall's 50th anniversary and the generations of men and women who have made Marshall what it is today. We are stewards

436

Topology on locally finite metric spaces  

E-Print Network [OSTI]

The necessity of a theory of General Topology and, most of all, of Algebraic Topology on locally finite metric spaces comes from many areas of research in both Applied and Pure Mathematics: Molecular Biology, Mathematical Chemistry, Computer Science, Topological Graph Theory and Metric Geometry. In this paper we propose the basic notions of such a theory and some applications: we replace the classical notions of continuous function, homeomorphism and homotopic equivalence with the notions of NPP-function, NPP-local-isomorphism and NPP-homotopy (NPP stands for Nearest Point Preserving); we also introduce the notion of NPP-isomorphism. We construct three invariants under NPP-isomorphisms and, in particular, we define the fundamental group of a locally finite metric space. As first applications, we propose the following: motivated by the longstanding question whether there is a purely metric condition which extends the notion of amenability of a group to any metric space, we propose the property SN (Small Neighb...

Capraro, Valerio

2011-01-01T23:59:59.000Z

437

Very Large Aperture Diffractive Space Telescope  

SciTech Connect (OSTI)

A very large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass ''aiming'' at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The magnifying glass includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the magnifying glass, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets.

Hyde, Roderick Allen

1998-04-20T23:59:59.000Z

438

Solar Power Beaming: From Space to Earth  

SciTech Connect (OSTI)

Harvesting solar energy in space and power beaming the collected energy to a receiver station on Earth is a very attractive way to help solve mankind's current energy and environmental problems. However, the colossal and expensive 'first step' required in achieving this goal has to-date stifled its initiation. In this paper, we will demonstrate that recent advance advances in laser and optical technology now make it possible to deploy a space-based system capable of delivering 1 MW of energy to a terrestrial receiver station, via a single unmanned commercial launch into Low Earth Orbit (LEO). Figure 1 depicts the overall concept of our solar power beaming system, showing a large solar collector in space, beaming a coherent laser beam to a receiving station on Earth. We will describe all major subsystems and provide technical and economic discussion to support our conclusions.

Rubenchik, A M; Parker, J M; Beach, R J; Yamamoto, R M

2009-04-14T23:59:59.000Z

439

Hodge Spaces for Real Toric Varieties  

E-Print Network [OSTI]

We define the Z/2Z Hodge spaces H_{pq}(\\Sigma) of a fan \\Sigma. If \\Sigma is the normal fan of a reflexive polytope \\Delta then we use polyhedral duality to compute the Z/2Z Hodge Spaces of \\Sigma. In particular, if the cones of dimension at most e in the face fan \\Sigma^* of \\Delta are smooth then we compute H_{pq}(\\Sigma) for pspaces H_{pq}(\\Sigma) and we show the toric variety X associated to \\Sigma is maximal, meaning that the sum of the Z/2Z Betti numbers of X(R) is equal to the sum of the Z/2Z Betti numbers of X(C).

Hower, Valerie

2007-01-01T23:59:59.000Z

440

From Discrete Space-Time to Minkowski Space: Basic Mechanisms, Methods and Perspectives  

E-Print Network [OSTI]

This survey article reviews recent results on fermion system in discrete space-time and corresponding systems in Minkowski space. After a basic introduction to the discrete setting, we explain a mechanism of spontaneous symmetry breaking which leads to the emergence of a discrete causal structure. As methods to study the transition between discrete space-time and Minkowski space, we describe a lattice model for a static and isotropic space-time, outline the analysis of regularization tails of vacuum Dirac sea configurations, and introduce a Lorentz invariant action for the masses of the Dirac seas. We mention the method of the continuum limit, which allows to analyze interacting systems. Open problems are discussed.

Felix Finster

2008-02-22T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

De Sitter space and perpetuum mobile  

E-Print Network [OSTI]

We give general arguments that any interacting non--conformal {\\it classical} field theory in de Sitter space leads to the possibility of constructing a perpetuum mobile. The arguments are based on the observation that massive free falling particles can radiate other massive particles on the classical level as seen by the free falling observer. The intensity of the radiation process is non-zero even for particles with any finite mass, i.e. with a wavelength which is within the causal domain. Hence, we conclude that either de Sitter space can not exist eternally or that one can build a perpetuum mobile.

Emil T. Akhmedov; P. V. Buividovich; Douglas A. Singleton

2010-02-14T23:59:59.000Z

442

Unitary Evolution on a Discrete Phase Space  

E-Print Network [OSTI]

We construct unitary evolution operators on a phase space with power of two discretization. These operators realize the metaplectic representation of the modular group SL(2,Z_{2^n}). It acts in a natural way on the coordinates of the non-commutative 2-torus, T_{2^n}^2$ and thus is relevant for non-commutative field theories as well as theories of quantum space-time. The class of operators may also be useful for the efficient realization of new quantum algorithms.

E. G. Floratos; S. Nicolis

2005-10-06T23:59:59.000Z

443

Embeddings and factorizations of Banach spaces  

E-Print Network [OSTI]

argument works in our context. 29 CHAPTER IV OPERATORS WHICH FACTOR THROUGH lscriptP OR c0 A. Introduction In [12], W. B. Johnson answered the following question about the relation between the structure of Lp and lscriptp. Question IV.A.1. Give a Banach... space condition so that if X is a subspace of Lp (1 < p < 2) which satisfies the condition, then X embeds isomorphically into lscriptp. The equivalent dual question would be: Question IV.A.2. Give a Banach space condition so that if X is a quotient of Lp...

Zheng, Bentuo

2009-05-15T23:59:59.000Z

444

Space and Remote Sensing (ISR-2)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSChargeSpace Sciencesand2 Space

445

School of Engineering Space Policy Approved, December, 2012  

E-Print Network [OSTI]

School of Engineering Space Policy ­ Approved, December, 2012 Introduction: Space is a resource periodically. The School of Engineering's space policy is proactive and consistent with mission, strategic and anticipated school need. Strategic objectives will inform space decisions. The School endorses

Muzzio, Fernando J.

446

Dr. Thomas A. Siewert IN-SPACE WELDING  

E-Print Network [OSTI]

) ) Dr. Thomas A. Siewert IN-SPACE WELDING Visions & Realities presented to Thirtieth Space This paperestablishes the value of having an in-space welding capability and identifies its applications, both near, Plasma Arc, and Laser Beam, are examined against the criteria for an in-space welding system. Research

Eagar, Thomas W.

447

HOMOTOPY THEORY OF CLASSIFYING SPACES OF COMPACT LIE GROUPS  

E-Print Network [OSTI]

, Miller & Wilkerson ([DMW1], [DMW2]), and more recently by Notbohm (unpublished). Classifying spaces

Oliver, Bob

448

White Space Ecosystem: A Secondary Network Operator's Perspective  

E-Print Network [OSTI]

1 White Space Ecosystem: A Secondary Network Operator's Perspective Yuan Luo, Lin Gao, and Jianwei Huang Abstract--The successful deployment of a TV white space network requires the coordination-users), which form the White Space Ecosystem. In this paper, we study the white space ecosystem from

Huang, Jianwei

449

SPACE PLANNING & OPERATIONS UNIVERSITY OF PENNSYLVANIA SCHOOL OF MEDICINE  

E-Print Network [OSTI]

SPACE PLANNING & OPERATIONS UNIVERSITY OF PENNSYLVANIA SCHOOL OF MEDICINE Policy & Procedure a centralized scheduling system managed by Space Planning & Operations (SPO) with the intention of maximizing use of available space to meet educational space demands. Purpose: The purpose of this policy

Bushman, Frederic

450

SPACE PLANNING & OPERATIONS University of Pennsylvania School of Medicine  

E-Print Network [OSTI]

SPACE PLANNING & OPERATIONS University of Pennsylvania School of Medicine Policy & Procedure: Public Space Use and Scheduling 12 May 2003 PLEASE NOTE THAT THIS POLICY IS CURRENTLY UNDER REVISION Description: School of Medicine Public Space (list defined below) is being centrally scheduled by Space

Bushman, Frederic

451

Research Space Use Standards Policy 2.500  

E-Print Network [OSTI]

Research Space Use Standards Policy 2.500 Page 1 Research Space Use Standards Date: November: Department chairs and center directors who have research laboratory space assigned to their unit. Reason for Policy: This policy was developed to help address a research space shortage in the School of Medicine

Acton, Scott

452

CECS Space Request Form Version: August 8, 2012  

E-Print Network [OSTI]

CECS Space Request Form Version: August 8, 2012 COLLEGE OF ENGINEERING AND COMPUTER SCIENCE SPACE COMMITTEE Unit submitting space request (please check one): CECE EECS-CS EECS-ECE IEMS MAE MSE This request for space in ENGR/ENG2/HEC is a (please check one): New request (must be submitted no later than 2 weeks

Wu, Shin-Tson

453

Space Request /Assignment Process University of Nebraska -Lincoln  

E-Print Network [OSTI]

Space Request /Assignment Process University of Nebraska - Lincoln Approved by Chancellor 08/15/2005 Department / Unit Completes IRP Web-based request form Department "triggers" a change to space through, different, and/or additional space Notices sent from IRP to initiating d t t d ffi Does Request Alter Space

Farritor, Shane

454

National Aeronautics and Space Administration Advanced Exploration Systems  

E-Print Network [OSTI]

affordability and drive a rapid pace of progress. Infuse new technologies developed by the Space Technology

Waliser, Duane E.

455

The Pennsylvania State University Confined Space Entry Program and Procedures  

E-Print Network [OSTI]

· Application · Reference · Definitions · Procedures - Permit-Required Confined Space Entry - Reclassification to a Non-Permit Confined Space Entry - Entry Frequency Limitations · Responsibilities · Appendix A. Typical Permit-Required Confined Spaces · Appendix B. Confined Space Entry Permit · Appendix C. University Park

Maroncelli, Mark

456

REACTIVE ENVIRONMENTS AND AUGMENTED MEDIA SPACES  

E-Print Network [OSTI]

REACTIVE ENVIRONMENTS AND AUGMENTED MEDIA SPACES by Jeremy R. Cooperstock A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Graduate Department of Electrical and Computer Engineering University of Toronto © Copyright by Jeremy R. Cooperstock, 1996 #12;ii REACTIVE

Cooperstock, Jeremy R.

457

2010 RAL Space Solar Impacts on Earth  

E-Print Network [OSTI]

© 2010 RAL Space Solar Impacts on Earth: Revealed by NASA's Solar Dynamics Observatory & STEREO minimum for a century: · Why? What happened? · What does that mean for the Earth? · Will the next build up cycle begins... The Events of 1-4 August 2010: A Close Shave for the Earth! 1 August 2010 ­ The day

458

Applying Reliability Models to the Space Shuttle  

E-Print Network [OSTI]

Applying Reliability Models to the Space Shuttle Norman F. Schneidewind Ted W. Keller #12;What are Reliability Models? Reliability Models are tools that Help Us: · Predict software Reliability. · Control software Reliability. · Assess software Reliability. This functions let an organization determine

Feitelson, Dror

459

National Aeronautics and Space Administration Mars Reconnaissance  

E-Print Network [OSTI]

National Aeronautics and Space Administration Mars Reconnaissance Orbiter Arrival Press Kit March level of Mars from underground layers to the top of the atmosphere. Among them, the most powerful Mars mission, using a dish antenna meters (10 feet) in diameter and a transmitter powered by 9

460

(Eigen Phoneme Space (Phoneme Vector : PV)  

E-Print Network [OSTI]

PCA , , ( ) 1 MFCC [1] PCA 2 2.1 [3] (Eigen Phoneme Space : EPS) PCA [2] PCA [3] PCA (EPS) (EPS) (Phoneme Vector : PV) Fig. 1 (EPS) /a/ /i/ · · · PCA (EPS) 2.2 PCA PCA i Si Si = 1 N N t=1 (xi t - ¯xi )(xi

Takiguchi, Tetsuya

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


461

A Generalization in Space of Jung's Theorem  

E-Print Network [OSTI]

Let's have $n$ points in the space such that the maximum distance between any of them is $a$. We prove that there exists a sphere of radius $r \\leq a \\frac{\\sqrt(6)}{4}$ that contains in its interior or on its surface all these points. [This is a generalization of Jung's theorem that he designed for a plane.

Florentin Smarandache

2007-07-13T23:59:59.000Z

462

Symmetric space description of carbon nanotubes  

E-Print Network [OSTI]

Using an innovative technique arising from the theory of symmetric spaces, we obtain an approximate analytic solution of the Dorokhov-Mello-Pereyra-Kumar (DMPK) equation in the insulating regime of a metallic carbon nanotube with symplectic symmetry and an odd number of conducting channels. This symmetry class is characterized by the presence of a perfectly conducting channel in the limit of infinite length of the nanotube. The derivation of the DMPK equation for this system has recently been performed by Takane, who also obtained the average conductance both analytically and numerically. Using the Jacobian corresponding to the transformation to radial coordinates and the parameterization of the transfer matrix given by Takane, we identify the ensemble of transfer matrices as the symmetric space of negative curvature SO^*(4m+2)/[SU(2m+1)xU(1)] belonging to the DIII-odd Cartan class. We rederive the leading-order correction to the conductance of the perfectly conducting channel and its variance Var(log(delta g)). Our results are in complete agreement with Takane's. In addition, our approach based on the mapping to a symmetric space enables us to obtain new universal quantities: a universal group theoretical expression for the ratio Var(log(delta g)/ and as a byproduct, a novel expression for the localization length for the most general case of a symmetric space with BC_m root system, in which all three types of roots are present.

M. Caselle; U. Magnea

2006-01-10T23:59:59.000Z

463

MIT Nuclear Space Research Andrew C. Kadak  

E-Print Network [OSTI]

SELENE MIT Nuclear Space Research Andrew C. Kadak Professor of the Practice Nuclear Science with Nuclear Energy ­ Selene - Sodium-Cooled Epithermal Long-term Exploration Nuclear Engine (MS thesis) ­ The Martian Surface Reactor: An Advanced Nuclear Power Station for Manned Extraterrestrial Exploration

464

Doctoral Programs Atmospheric, Oceanic & Space Sciences  

E-Print Network [OSTI]

University of Michigan Space Research Building 2455 Hayward Street Ann Arbor, MI 48109-2143 aoss Katherine E. White, Ann Arbor The Regents of the University of Michigan Research areas Atmospheric Science Atmospheric Dynamics Climate, Climate Modeling & Climate Change Clouds & Precipitation Paleoclimate, Ice

Eustice, Ryan

465

Space Exploration and the Benefits to Mankind  

SciTech Connect (OSTI)

Paper presented at the 41st Congress of the International Astronautical Federation in Dresden, GDR in October 1990. This paper analyzes the past challenges of the space program's multi-national cooperative agreements and examines the challenges of the future as we quickly become a global society. Cross Reference ESD-T1.

Moser, T.L.; Freitag, R.; Schneider, W.C.

1990-10-01T23:59:59.000Z

466

High performance, close-spaced thermionic converters  

SciTech Connect (OSTI)

Near ideal performance in a Thermionic Energy Converter (TEC) can be obtained using extremely small (< 10 microns) interelectrode spacings. Previous efforts to build such converters have encountered engineering problems. A new type of converter, called SAVTEC (for Self-Adjusting, Versatile Thermionic Energy Converter) has been developed at Rasor Associates, Inc., as a practical way to achieve small spacings. It has been demonstrated to deliver improved performance over conventional, ignited-mode converters. A series of individual SAVTEC's have been built and tested. Two general configurations were built: in the first a single emitter support lead (0.25 mm wire) passes through a hole in the center of the collector, with the emitter being welded to it. In the second three smaller wires replace the center wire and are welded to the emitter perimeter. These converters have shown reliable, temperature controlled spacings of the emitter and collector. Reproducible spacing of 10 microns (0.4 mils) were achieved on several converters. This paper presents details of SAVTEC converter construction and performance, including volt-ampere curves.

Dick, R.S.; Britt, E.J.; Fitzpatrick, G.O.; McVey, J.B.

1983-08-01T23:59:59.000Z

467

library.syr.edu Spaces and Places  

E-Print Network [OSTI]

library.syr.edu #12;Spaces and Places Bird Library, the largest library on campus, welcomes over sciences, library administrative offices, the Special Collections Research Center, and the library café, Pages. Other library facilities include the Carnegie Library, the Geology Library in Heroy

McConnell, Terry

468

Toolbox Safety Talk Confined Spaces in Agriculture  

E-Print Network [OSTI]

approach for preventing accidents in confined spaces is to simply perform all work from outside Hazardous energy sources (augers and moving parts) and Toxic dusts Manure Pits & Tanks Asphyxiation due displace oxygen Methane (potentially explosive) and Carbon Dioxide may also displace oxygen Wells Oxygen

Pawlowski, Wojtek

469

Optical Technology Needs for Future Space Telescopes  

E-Print Network [OSTI]

instruments & sensors. Future Space Telescopes will operate over broad spectrum: Gamma Rays, X-Rays, XUV and Sensors Direct Sensing of Particles, Fields and Waves See Scientific Instruments and Sensors (SIS Structure #12;NASA's Science Missions Directorate Themes: Earth Science Sun-Solar System Connection Solar

Van Stryland, Eric

470

JPL S neii space simulator starts its  

E-Print Network [OSTI]

as much as anyone. 25 #12;The Month . . . continued solar panels extended. The space environment simu of the tower contains a solar simulation unit which is designed to simulate the varying intensity of sunlight of its kind in the United States, consists of a 10,000-square-foot building to house offices, a control

Greer, Julia R.

471

Phase Space and Jet Definitions in SCET  

E-Print Network [OSTI]

We discuss consistent power counting for integrating soft and collinear degrees of freedom over arbitrary regions of phase space in the soft-collinear effective theory (SCET), and illustrate our results at one loop with several jet algorithms: JADE, Sterman-Weinberg and k_T. Consistently applying SCET power-counting in phase space, along with non-trivial zero-bin subtractions, prevents double-counting of final states. The resulting phase-space integrals over soft and collinear regions are individually ultraviolet divergent, but the phase-space ultraviolet divergences cancel in the sum. Whether the soft and collinear contributions are individually infrared safe depends on the jet definition. We show that while this is true at one loop for JADE and Sterman-Weinberg, the k_T algorithm does not factorize into individually infrared safe soft and collinear pieces in dimensional regularization. We point out that this statement depends on the ultraviolet regulator, and that in a cutoff scheme the soft functions are infrared safe.

William Man-Yin Cheung; Michael Luke; Saba Zuberi

2009-10-13T23:59:59.000Z

472

SpaceX Demonstration Mission MISSION OBJECTIVES  

E-Print Network [OSTI]

Inserted into Orbit: o Falcon 9 rocket ascends through lightning towers on the launch site without stage o Solar arrays deploy from Dragon's trunk and function properly o Dragon completes system, and radiation) found in space, especially Dragon's solar arrays, radiators, avionics, and trunk o Performance

Waliser, Duane E.

473

NEW SPACES FOR LEARNIN ADVANCED LABORATORIE  

E-Print Network [OSTI]

ENGINEERING ENVIRO THIS CAMPAIGN WILL STRENGTHEN THE SCHULICH SCHOOL OF ENGINEERING WITH A SPACE THAT INTEGRATES ITS ALREADY EXCELLENT PEOPLE AND PROGRAMS. THE AMPLIFYING IMPACT OF THIS INVESTMENT, helping the nation and making an impact globally. This is no small footprint. At the same time, the school

Calgary, University of

474

Barycenters in the Wasserstein space Martial Agueh  

E-Print Network [OSTI]

Barycenters in the Wasserstein space Martial Agueh , Guillaume Carlier August 17, 2010 Abstract in the theory of Department of Mathematics and statistics University of Victoria, Victoria, BC, PO Box 3060 STN CSC Victoria, BC, V8W 3R4, CANADA, agueh@math.uvic.ca. CEREMADE, UMR CNRS 7534, Universit´e Paris IX

Carlier, Guillaume

475

The University of Edinburgh Space Temperature Standards  

E-Print Network [OSTI]

The University of Edinburgh Space Temperature Standards Addendum to the Energy Policy 2003C causes an estimated 8% extra energy costs / global warming gas emissions. Comfort Levels: Summer, lights and / or solar gain and all other options have been exhausted Temperature control is required

Edinburgh, University of

476

Meter Expansion Plan Existing Multi-Space Meter  

E-Print Network [OSTI]

Meter Expansion Plan 11 35 9 7 10 20 12 11 12 46 23 15 15 60 23 Existing Multi-Space Meter Split Regulations 136 New Multi-Space Meter Visitor Only New Multi-Space Meter Split Regulations KEY 97 Updated 7/8/13 11 5 #12;HAVE.HAVE. UNION DR. 1 2 3 4 5 New Multi-space Meter After: 5 Meter Spaces Regulations

Duchowski, Andrew T.

477

COMMUNITY SPACE MONITOR (CSM) APPLICATION Thank you for applying for the Community Space Monitor position with the Residence Life department.  

E-Print Network [OSTI]

COMMUNITY SPACE MONITOR (CSM) APPLICATION Thank you for applying for the Community Space Monitor, .docx) and PDF (.pdf) format only. #12;Residence Life Updated August 2014 -1 of 3- Community Space Monitor: Job Description IDENTIFICATION Position Title: Community Space Monitor Department: Residence Life

478

Approved Space Heaters In order to ensure that all space heaters meet current safety guidelines, the University Fire Department  

E-Print Network [OSTI]

EHS 1/2012 Approved Space Heaters In order to ensure that all space heaters meet current safety approved a limited selection of space heaters for use within the University, which are available at Central Stores. The following Space Heaters are approved for use in University of Connecticut buildings provided

Holsinger, Kent

479

SPACE WEATHER, VOL. 11, 529541, doi:10.1002/swe.20092, 2013 A survey of customers of space  

E-Print Network [OSTI]

SPACE WEATHER, VOL. 11, 529541, doi:10.1002/swe.20092, 2013 A survey of customers of space weather August 2013; published 24 September 2013. [1] We present an analysis of the users of space weather information based on 2783 responses to an online survey among subscribers of NOAA's Space Weather Prediction

Schrijver, Karel

480

States in the Hilbert space formulation and in the phase space formulation of quantum mechanics  

SciTech Connect (OSTI)

We consider the problem of testing whether a given matrix in the Hilbert space formulation of quantum mechanics or a function considered in the phase space formulation of quantum theory represents a quantum state. We propose several practical criteria for recognising states in these two versions of quantum physics. After minor modifications, they can be applied to check positivity of any operators acting in a Hilbert space or positivity of any functions from an algebra with a ?-product of Weyl type. -- Highlights: ? Methods of testing whether a given matrix represents a quantum state. ? The StratonovichWeyl correspondence on an arbitrary symplectic manifold. ? Criteria for checking whether a function on a symplectic space is a Wigner function.

Tosiek, J., E-mail: tosiek@p.lodz.pl; Brzykcy, P., E-mail: 800289@edu.p.lodz.pl

2013-05-15T23:59:59.000Z

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


481

Medical Hardware for the Space Environment: An Engineering Experience at the National Aeronautics and Space Administration  

E-Print Network [OSTI]

The complexity and amount of medical hardware needed by National Aeronautics and Space Administration (NASA) constantly shifts with mission requirements. Early missions such as Mercury, Gemini, and Apollo required minimal, relatively non...

Reyna, Baraquiel

2011-10-21T23:59:59.000Z

482

Quantization of Space and Time in 3 and in 4 Space-time Dimensions  

E-Print Network [OSTI]

The fact that in Minkowski space, space and time are both quantized does not have to be introduced as a new postulate in physics, but can actually be derived by combining certain features of General Relativity and Quantum Mechanics. This is demonstrated first in a model where particles behave as point defects in 2 space dimensions and 1 time, and then in the real world having 3+1 dimensions. The mechanisms in these two cases are quite different, but the outcomes are similar: space and time form a (non-cummutative) lattice. These notes are short since most of the material discussed in these lectures is based on two earlier papers by the same author (gr-qc/9601014 and gr-qc/9607022), but the exposition given in the end is new.

G. 't Hooft

1996-08-16T23:59:59.000Z

483

Space weather impacts Thank you for taking this anonymous survey on the impacts of space weather.  

E-Print Network [OSTI]

Defense / National Security Education Electric utility sector Natural resources exploration or extraction than space sciences) Satellite manufacturing or operations (other than GPS/GNSS) #12;5. What best

Schrijver, Karel

484

STAKING SPACE : planning, public space, and visions of the subaltern in the context of Kabul  

E-Print Network [OSTI]

This thesis will review how public spaces in Kabul, Afghanistan will be affected by plans for development and formalization under proposed city plans. The core argument is that these processes of development under guises ...

Adina, Seema Ghizala

2012-01-01T23:59:59.000Z

485

Momentum space metric, non-local operator, and topological insulators  

E-Print Network [OSTI]

Momentum space of a gapped quantum system is a metric space: it admits a notion of distance reflecting properties of its quantum ground state. By using this quantum metric, we investigate geometric properties of momentum space. In particular, we introduce a non-local operator which represents distance square in real space and show that this corresponds to the Laplacian in curved momentum space, and also derive its path integral representation in momentum space. The quantum metric itself measures the second cumulant of the position operator in real space, much like the Berry gauge potential measures the first cumulant or the electric polarization in real space. By using the non-local operator and the metric, we study some aspects of topological phases such as topological invariants, the cumulants and topological phase transitions. The effect of interactions to the momentum space geometry is also discussed.

Shunji Matsuura; Shinsei Ryu

2010-07-13T23:59:59.000Z

486

Entropy of Quantum Fields in de Sitter Space-time  

E-Print Network [OSTI]

The quantum states or Hilbert spaces for the quantum field theory in de Sitter space-time are studied on ambient space formalism. In this formalism, the quantum states are only depended $(1)$ on the topological character of the de Sitter space-time, {\\it i.e.} $\\R \\times S^3$, and $(2)$ on the homogeneous spaces which are used for construction of the unitary irreducible representation of de Sitter group. A compact homogeneous space is chosen in this paper. The unique feature of this homogeneous space is that its total number of quantum states, ${\\cal N}$, is finite although the Hilbert space has infinite dimensions. It is shown that ${\\cal N}$ is a continuous function of the Hubble constant $H$ and the eigenvalue of the Casimir operators of de Sitter group. The entropy of the quantum fields on this Hilbert space have been calculated which is finite and invariant for all inertial observers on the de Sitter hyperboloid.

M. V. Takook

2014-08-15T23:59:59.000Z

487

Thermoacoustic power systems for space applications  

SciTech Connect (OSTI)

Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (W/kg). Thermoacoustic engines can convert high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, these engines are low mass and promise to be highly reliable. Coupling a thermoacoustic engine to a low-mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Data will be presented on the first tests of a demonstration thermoacoustic engine designed for the 100-Watt power range.

Backhaus, S. N. (Scott N.); Tward, E. (Emanual); Pedach, M. (Michael)

2001-01-01T23:59:59.000Z

488

Initial tests of thermoacoustic space power engine.  

SciTech Connect (OSTI)

Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (Wikg). Thennoacoustic engines at the -1-kW scale have converted high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, thennoacoustic engines are low mass and promise to be highly reliable. Coupling a thennoacoustic engine to a low mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Conversion efficiency data will be presented on a demonstration thennoacoustic engine designed for the 1 00-Watt power range.

Backhaus, S. N. (Scott N.)

2002-01-01T23:59:59.000Z

489

A study of Frechet and sequential spaces  

E-Print Network [OSTI]

: Mathematics A S ). 'U: )Y OI ' '. ". CII. '"i AI!0 S, ', "U. ', !'". L'&L S ~ACES 'I'hc s ~ ~ JU!)Y I!EIIUSSSEY I'00''~S !L B burly of 7 r!c:cj3r. L- and 3cquc&7Liat. bpases. (Aul!us b 1970) Jurly H. iloot e, I'. 7&. , Notsfjt Tptc?s BI: 1t e Ilnivcx sit... y; Div. . r c I&ed by: Dt-. Jatnes jt. Boone tn a c, eLS1. c space, I&he co?we. -. '&~, nL- sec, uences in t. he space- 67. s?1' f icienf Lo d t&eu. :1i. 71c the fo, '3ot ofry and Lo cha1!POLetcise sl 1 of the t:ol3&71&7gr ic:1l. pcot3et I...

Moore, Judy Hennessey

2012-06-07T23:59:59.000Z

490

Wigner spacing distribution in classical mechanics  

E-Print Network [OSTI]

The Wigner spacing distribution has a long and illustrious history in nuclear physics and in the quantum mechanics of classically chaotic systems. In this paper, a long-overlooked connection between the Wigner distribution and classical chaos in two-degree-of-freedom (2D) conservative systems is introduced. In the specific context of fully chaotic 2D systems, the hypothesis that typical pseudotrajectories of a canonical Poincar\\'{e} map have a Wignerian nearest-neighbor spacing distribution (NNSD), is put forward and tested. Employing the 2D circular stadium billiard as a generic test case, the NNSD of a typical pseudotrajectory of the Birkhoff map is shown to be in excellent agreement with the Wigner distribution. The relevance of the higher-order Wigner surmises from random matrix theory are also illustrated.

Jamal Sakhr

2014-07-08T23:59:59.000Z

491

Merging electromagnetism with space-time metric  

E-Print Network [OSTI]

In the present work, it is shown that the electromagnetism may be directly associated to the four-dimensional space-time geometry. The starting point is an analysis of the geodesic equation of general relativity where it is verified that it contains implicitly the effects of the Coulomb and the Lorentz forces. Consequently, some components of the metric tensor are identified with the components of the four-vector electromagnetic potential. Then, it is constructed a low-field equation for the electromagnetism in the same structure of the Einstein field equations for the gravitation, relating the curvature of space-time to sources of charge and current density. In this framework, all the Maxwell equations are implicit. A proof of consistency with the framework of quantum mechanics is shown.

C. A. Duarte

2014-03-10T23:59:59.000Z

492

National Aeronautics and Space Administration November 2010  

E-Print Network [OSTI]

Transfer TA14-14 2.2.3. Heat Rejection and Energy Storage TA14-16 2.3. Thermal Protection Systems (TPS) TADRAFT National Aeronautics and Space Administration November · 2010 DRAFT TheRmAl mAnAgemenT Sy.1.1. Passive Thermal Control TA14-8 2.1.2. Active Thermal Control TA14-10 2.1.3. System Integration TA14-12 2

493

Longitudinal space charge effects near transition  

SciTech Connect (OSTI)

Experimental and numerical studies of the longitudinal beam dynamics in the Small Isochronous Ring (SIR) at Michigan State University revealed a fast, space-charge driven instability that did not fit the model of the negative mass instability. This paper proposes a simple analytical model explaining these results. Also, the paper compares the model to result s of experimental and numerical studies of the longitudinal beam dynamics in SIR.

Pozdeyev,E.; Rodriguez, J.A.; Marti, F.; York, R.C.

2009-05-04T23:59:59.000Z

494

Particle accelerator employing transient space charge potentials  

DOE Patents [OSTI]

The invention provides an accelerator for ions and charged particles. The plasma is generated and confined in a magnetic mirror field. The electrons of the plasma are heated to high temperatures. A series of local coils are placed along the axis of the magnetic mirror field. As an ion or particle beam is directed along the axis in sequence the coils are rapidly pulsed creating a space charge to accelerate and focus the beam of ions or charged particles.

Post, Richard F. (Walnut Creek, CA)

1990-01-01T23:59:59.000Z

495

Space-Time Insight | 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 Office of InspectorConcentrating SolarElectric Coop, Inc Place: Missouri References: EIA FormSouthwesternSpace-Time

496

Generalised hyperbolicity in singular space-times  

E-Print Network [OSTI]

A new concept analogous to global hyperbolicity is introduced, based on test fields. It is shown that the space-times termed here ``curve integrable'' are globally hyperbolic in this new sense, and a plausibility argument is given suggesting that the result applies to shell crossing singularities. If the assumptions behind this last argument are valid, this provides an alternative route to the assertion that such singularities do not violate cosmic censorship.

C J S Clarke

1997-04-25T23:59:59.000Z

497

Hydrogen atom in rotationally invariant noncommutative space  

E-Print Network [OSTI]

We consider the noncommutative algebra which is rotationally invariant. The hydrogen atom is studied in a rotationally invariant noncommutative space. We find the corrections to the energy levels of the hydrogen atom up to the second order in the parameter of noncommutativity. The upper bound of the parameter of noncommutativity is estimated on the basis of the experimental results for 1s-2s transition frequency.

Kh. P. Gnatenko; V. M. Tkachuk

2014-11-03T23:59:59.000Z

498

Space reactor safety, 1985--1995 lessons learned  

SciTech Connect (OSTI)

Space reactor safety activities and decisions have evolved over the last decade. Important safety decisions have been made in the SP-100, Space Exploration Initiative, NEPSTP, SNTP, and Bimodal Space Reactor programs. In addition, international guidance on space reactor safety has been instituted. Space reactor safety decisions and practices have developed in the areas of inadvertent criticality, reentry, radiological release, orbital operation, programmatic, and policy. In general, the lessons learned point out the importance of carefully reviewing previous safety practices for appropriateness to space nuclear programs in general and to the specific mission under consideration.

Marshall, A.C.

1995-12-31T23:59:59.000Z

499

Space reactor safety, 1985{endash}1995 lessons learned  

SciTech Connect (OSTI)

Space reactor safety activities and decisions have evolved over the last decade. Important safety decisions have been made in the SP-100, Space Exploration Initiative, NEPSTP, SNTP, and Bimodal Space Reactor programs. In addition, international guidance on space reactor safety has been instituted. Space reactor safety decisions and practices have developed in the areas of inadvertent criticality, reentry, radiological release, orbital operation, programmatics, and policy. In general, the lessons learned point out the importance of carefully reviewing previous safety practices for appropriateness to space nuclear programs in general and to the specific mission under consideration. {copyright} {ital 1996 American Institute of Physics.}

Marshall, A.C. [Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185 (United States)

1996-03-01T23:59:59.000Z

500

Detecting Noncommutative Phase Space by Aharonov-Bohm Effect  

E-Print Network [OSTI]

Noncommutative phase space plays an essential role in particle physics and quantum gravity at the Planck scale. However, direct experimental evidence or observation to demonstrate the existence of noncommutative phase space is still lacking.We study a quantum ring in noncommutative phase space based on the Seiberg-Witten map and give the effective magnetic potential and field coming from the noncommutative phase space, which induces the persistent current in the ring. We introduce two variables as two signatures to detect the noncommutative phase space and propose an experimental scheme to detect the noncommutative phase space as long as we measure the persistent current and the external magnetic flux.

Shi-Dong Liang; Haoqi Li; Guang-Yao Huang

2015-02-02T23:59:59.000Z