National Library of Energy BETA

Sample records for assessment big sky

  1. Big Sky Carbon Atlas

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

    (Acknowledgment to the Big Sky Carbon Sequestration Partnership (BSCSP); see home page at http://www.bigskyco2.org/)

  2. Big Sky Trust Fund (Montana)

    Broader source: Energy.gov [DOE]

    The Big Sky Trust Fund reimburses expenses incurred in the purchase, leasing, or relocation of real assets for direct use of the assisted business or employee training costs. A local or tribal...

  3. BIG SKY CARBON SEQUESTRATION PARTNERSHIP

    SciTech Connect (OSTI)

    Susan M. Capalbo

    2004-06-01

    The Big Sky Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts during the second performance period fall into four areas: evaluation of sources and carbon sequestration sinks; development of GIS-based reporting framework; designing an integrated suite of monitoring, measuring, and verification technologies; and initiating a comprehensive education and outreach program. At the first two Partnership meetings the groundwork was put in place to provide an assessment of capture and storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that would complement the ongoing DOE research. The region has a diverse array of geological formations that could provide storage options for carbon in one or more of its three states. Likewise, initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil C on forested, agricultural, and reclaimed lands. Both options include the potential for offsetting economic benefits to industry and society. Steps have been taken to assure that the GIS-based framework is consistent among types of sinks within the Big Sky Partnership area and with the efforts of other western DOE partnerships. Efforts are also being made to find funding to include Wyoming in the coverage areas for both geological and terrestrial sinks and sources. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but all policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts begun in developing and implementing MMV technologies for geological sequestration reflect this concern. Research is also underway to identify and validate best management practices for soil C in the partnership region, and to design a risk/cost effectiveness framework to make comparative assessments of each viable sink, taking into account economic costs, offsetting benefits, scale of sequestration opportunities, spatial and time dimensions, environmental risks, and long term viability. Scientifically sound information on MMV is critical for public acceptance of these technologies. Two key deliverables were completed this quarter--a literature review/database to assess the soil carbon on rangelands, and the draft protocols, contracting options for soil carbon trading. To date, there has been little research on soil carbon on rangelands, and since rangeland constitutes a major land use in the Big Sky region, this is important in achieving a better understanding of terrestrial sinks. The protocols developed for soil carbon trading are unique and provide a key component of the mechanisms that might be used to efficiently sequester GHG and reduce CO{sub 2} concentrations. Progress on other deliverables is noted in the PowerPoint presentations. A series of meetings held during the second quarter have laid the foundations for assessing the issues surrounding the implementation of a market-based setting for soil C credits. These meetings provide a connection to stakeholders in the region and a basis on which to draw for the DOE PEIS hearings. Finally, the education and outreach efforts have resulted in a comprehensive plan and process which serves as a guide for implementing the outreach activities under Phase I. While we are still working on the public website, we have made many presentations to stakeholders and policy makers, connections to other federal and state agencies concerned with GHG emissions, climate change, and efficient and environmentally-friendly energy production. In addition, we have laid plans for integration of our outreach efforts with the students, especially at the tribal colleges and at the universities involved in our partnership. This includes collaboration with the film and media arts departments at MSU, with outreach effort

  4. BIG SKY CARBON SEQUESTRATION PARTNERSHIP

    SciTech Connect (OSTI)

    Susan M. Capalbo

    2005-01-31

    The Big Sky Carbon Sequestration Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts under this Partnership in Phase I fall into four areas: evaluation of sources and carbon sequestration sinks that will be used to determine the location of pilot demonstrations in Phase II; development of GIS-based reporting framework that links with national networks; designing an integrated suite of monitoring, measuring, and verification technologies and assessment frameworks; and initiating a comprehensive education and outreach program. The groundwork is in place to provide an assessment of storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that would complement the ongoing DOE research. Efforts are underway to showcase the architecture of the GIS framework and initial results for sources and sinks. The region has a diverse array of geological formations that could provide storage options for carbon in one or more of its three states. Likewise, initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil C on forested, agricultural, and reclaimed lands. Both options include the potential for offsetting economic benefits to industry and society. Steps have been taken to assure that the GIS-based framework is consistent among types of sinks within the Big Sky Partnership area and with the efforts of other western DOE partnerships. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but all policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts in developing and implementing MMV technologies for geological sequestration reflect this concern. Research is also underway to identify and validate best management practices for soil C in the Partnership region, and to design a risk/cost effectiveness framework to make comparative assessments of each viable sink, taking into account economic costs, offsetting benefits, scale of sequestration opportunities, spatial and time dimensions, environmental risks, and long-term viability. Scientifically sound information on MMV is critical for public acceptance of these technologies.

  5. BIG SKY CARBON SEQUESTRATION PARTNERSHIP

    SciTech Connect (OSTI)

    Susan M. Capalbo

    2004-01-04

    The Big Sky Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts during the first performance period fall into four areas: evaluation of sources and carbon sequestration sinks; development of GIS-based reporting framework; designing an integrated suite of monitoring, measuring, and verification technologies; and initiating a comprehensive education and outreach program. At the first Partnership meeting the groundwork was put in place to provide an assessment of capture and storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that would complement the ongoing DOE research. The region has a diverse array of geological formations that could provide storage options for carbon in one or more of its three states. Likewise, initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil C on forested, agricultural, and reclaimed lands. Both options include the potential for offsetting economic benefits to industry and society. Complementary to the efforts on evaluation of sources and sinks is the development of the Big Sky Partnership Carbon Cyberinfrastructure (BSP-CC) and a GIS Road Map for the Partnership. These efforts will put in place a map-based integrated information management system for our Partnership, with transferability to the national carbon sequestration effort. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but other policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts begun in developing and implementing MMV technologies for geological sequestration reflect this concern. Research is also underway to identify and validate best management practices for soil C in the partnership region, and to design a risk/cost effectiveness framework to make comparative assessments of each viable sink, taking into account economic costs, offsetting benefits, scale of sequestration opportunities, spatial and time dimensions, environmental risks, and long term viability. A series of meetings held in November and December, 2003, have laid the foundations for assessing the issues surrounding the implementation of a market-based setting for soil C credits. These include the impact of existing local, state, and federal permitting issues for terrestrial based carbon sequestration projects, consistency of final protocols and planning standards with national requirements, and alignments of carbon sequestration projects with existing federal and state cost-share programs. Finally, the education and outreach efforts during this performance period have resulted in a comprehensive plan which serves as a guide for implementing the outreach activities under Phase I. The primary goal of this plan is to increase awareness, understanding, and public acceptance of sequestration efforts and build support for a constituent based network which includes the initial Big Sky Partnership and other local and regional businesses and entities.

  6. BIG SKY CARBON SEQUESTRATION PARTNERSHIP

    SciTech Connect (OSTI)

    Susan M. Capalbo

    2004-10-31

    The Big Sky Carbon Sequestration Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts under this Partnership fall into four areas: evaluation of sources and carbon sequestration sinks; development of GIS-based reporting framework; designing an integrated suite of monitoring, measuring, and verification technologies; and initiating a comprehensive education and outreach program. At the first two Partnership meetings the groundwork was put in place to provide an assessment of capture and storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that would complement the ongoing DOE research. During the third quarter, planning efforts are underway for the next Partnership meeting which will showcase the architecture of the GIS framework and initial results for sources and sinks, discuss the methods and analysis underway for assessing geological and terrestrial sequestration potentials. The meeting will conclude with an ASME workshop. The region has a diverse array of geological formations that could provide storage options for carbon in one or more of its three states. Likewise, initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil C on forested, agricultural, and reclaimed lands. Both options include the potential for offsetting economic benefits to industry and society. Steps have been taken to assure that the GIS-based framework is consistent among types of sinks within the Big Sky Partnership area and with the efforts of other western DOE partnerships. Efforts are also being made to find funding to include Wyoming in the coverage areas for both geological and terrestrial sinks and sources. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but all policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts begun in developing and implementing MMV technologies for geological sequestration reflect this concern. Research is also underway to identify and validate best management practices for soil C in the Partnership region, and to design a risk/cost effectiveness framework to make comparative assessments of each viable sink, taking into account economic costs, offsetting benefits, scale of sequestration opportunities, spatial and time dimensions, environmental risks, and long-term viability. Scientifically sound information on MMV is critical for public acceptance of these technologies. Two key deliverables were completed in the second quarter--a literature review/database to assess the soil carbon on rangelands, and the draft protocols, contracting options for soil carbon trading. The protocols developed for soil carbon trading are unique and provide a key component of the mechanisms that might be used to efficiently sequester GHG and reduce CO{sub 2} concentrations. While no key deliverables were due during the third quarter, progress on other deliverables is noted in the PowerPoint presentations and in this report. A series of meetings held during the second and third quarters have laid the foundations for assessing the issues surrounding carbon sequestration in this region, the need for a holistic approach to meeting energy demands and economic development potential, and the implementation of government programs or a market-based setting for soil C credits. These meetings provide a connection to stakeholders in the region and a basis on which to draw for the DOE PEIS hearings. In the fourth quarter, three deliverables have been completed, some in draft form to be revised and updated to include Wyoming. This is due primarily to some delays in funding to LANL and INEEL and the approval of a supplemental proposal to include Wyoming in much of the GIS data sets, analysis, and related materials. The de

  7. BIG SKY CARBON SEQUESTRATION PARTNERSHIP

    SciTech Connect (OSTI)

    Susan M. Capalbo

    2004-06-30

    The Big Sky Carbon Sequestration Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts under this Partnership fall into four areas: evaluation of sources and carbon sequestration sinks; development of GIS-based reporting framework; designing an integrated suite of monitoring, measuring, and verification technologies; and initiating a comprehensive education and outreach program. At the first two Partnership meetings the groundwork was put in place to provide an assessment of capture and storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that would complement the ongoing DOE research. During the third quarter, planning efforts are underway for the next Partnership meeting which will showcase the architecture of the GIS framework and initial results for sources and sinks, discuss the methods and analysis underway for assessing geological and terrestrial sequestration potentials. The meeting will conclude with an ASME workshop (see attached agenda). The region has a diverse array of geological formations that could provide storage options for carbon in one or more of its three states. Likewise, initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil C on forested, agricultural, and reclaimed lands. Both options include the potential for offsetting economic benefits to industry and society. Steps have been taken to assure that the GIS-based framework is consistent among types of sinks within the Big Sky Partnership area and with the efforts of other western DOE partnerships. Efforts are also being made to find funding to include Wyoming in the coverage areas for both geological and terrestrial sinks and sources. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but all policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts begun in developing and implementing MMV technologies for geological sequestration reflect this concern. Research is also underway to identify and validate best management practices for soil C in the Partnership region, and to design a risk/cost effectiveness framework to make comparative assessments of each viable sink, taking into account economic costs, offsetting benefits, scale of sequestration opportunities, spatial and time dimensions, environmental risks, and long-term viability. Scientifically sound information on MMV is critical for public acceptance of these technologies. Two key deliverables were completed in the second quarter--a literature review/database to assess the soil carbon on rangelands, and the draft protocols, contracting options for soil carbon trading. The protocols developed for soil carbon trading are unique and provide a key component of the mechanisms that might be used to efficiently sequester GHG and reduce CO2 concentrations. While no key deliverables were due during the third quarter, progress on other deliverables is noted in the PowerPoint presentations and in this report. A series of meetings held during the second and third quarters have laid the foundations for assessing the issues surrounding carbon sequestration in this region, the need for a holistic approach to meeting energy demands and economic development potential, and the implementation of government programs or a market-based setting for soil C credits. These meetings provide a connection to stakeholders in the region and a basis on which to draw for the DOE PEIS hearings. A third Partnership meeting has been planned for August 04 in Idaho Falls; a preliminary agenda is attached.

  8. Big Sky Carbon Sequestration Partnership

    SciTech Connect (OSTI)

    Susan M. Capalbo

    2005-11-01

    The Big Sky Carbon Sequestration Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts under this Partnership in Phase I fall into four areas: evaluation of sources and carbon sequestration sinks that will be used to determine the location of pilot demonstrations in Phase II; development of GIS-based reporting framework that links with national networks; designing an integrated suite of monitoring, measuring, and verification technologies and assessment frameworks; and initiating a comprehensive education and outreach program. The groundwork is in place to provide an assessment of storage capabilities for CO2 utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that would complement the ongoing DOE research agenda in Carbon Sequestration. The region has a diverse array of geological formations that could provide storage options for carbon in one or more of its three states. Likewise, initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil C on forested, agricultural, and reclaimed lands. Both options include the potential for offsetting economic benefits to industry and society. Steps have been taken to assure that the GIS-based framework is consistent among types of sinks within the Big Sky Partnership area and with the efforts of other DOE regional partnerships. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but all policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts in developing and implementing MMV technologies for geological sequestration reflect this concern. Research is also underway to identify and validate best management practices for soil C in the Partnership region, and to design a risk/cost effectiveness framework to make comparative assessments of each viable sink, taking into account economic costs, offsetting benefits, scale of sequestration opportunities, spatial and time dimensions, environmental risks, and long-term viability. Scientifically sound MMV is critical for public acceptance of these technologies. Deliverables for the 7th Quarter reporting period include (1) for the geological efforts: Reports on Technology Needs and Action Plan on the Evaluation of Geological Sinks and Pilot Project Deployment (Deliverables 2 and 3), and Report on the Feasibility of Mineralization Trapping in the Snake River Plain Basin (Deliverable 14); (2) for the terrestrial efforts: Report on the Evaluation of Terrestrial Sinks and a Report of the Best Production Practices for Soil C Sequestration (Deliverables 8 and 15). In addition, the 7th Quarter activities for the Partnership included further development of the proposed activities for the deployment and demonstration phase of the carbon sequestration pilots including geological and terrestrial pilots, expansion of the Partnership to encompass regions and institutions that are complimentary to the steps we have identified, building greater collaborations with industry and stakeholders in the region, contributed to outreach efforts that spanned all partnerships, co-authorship on the Carbon Capture and Separation report, and developed a regional basis to address future energy opportunities in the region. The deliverables and activities are discussed in the following sections and appended to this report. The education and outreach efforts have resulted in a comprehensive plan which serves as a guide for implementing the outreach activities under Phase I. The public website has been expanded and integrated with the GIS carbon atlas. We have made presentations to stakeholders and policy makers including two tribal sequestration workshops, and made connections to other federal and state agencies concerned with GHG emissions, climate change, and efficient and environmental

  9. Big Sky Carbon Sequestration Partnership

    SciTech Connect (OSTI)

    Susan Capalbo

    2005-12-31

    The Big Sky Carbon Sequestration Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts under this Partnership in Phase I are organized into four areas: (1) Evaluation of sources and carbon sequestration sinks that will be used to determine the location of pilot demonstrations in Phase II; (2) Development of GIS-based reporting framework that links with national networks; (3) Design of an integrated suite of monitoring, measuring, and verification technologies, market-based opportunities for carbon management, and an economic/risk assessment framework; (referred to below as the Advanced Concepts component of the Phase I efforts) and (4) Initiation of a comprehensive education and outreach program. As a result of the Phase I activities, the groundwork is in place to provide an assessment of storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that complements the ongoing DOE research agenda in Carbon Sequestration. The geology of the Big Sky Carbon Sequestration Partnership Region is favorable for the potential sequestration of enormous volume of CO{sub 2}. The United States Geological Survey (USGS 1995) identified 10 geologic provinces and 111 plays in the region. These provinces and plays include both sedimentary rock types characteristic of oil, gas, and coal productions as well as large areas of mafic volcanic rocks. Of the 10 provinces and 111 plays, 1 province and 4 plays are located within Idaho. The remaining 9 provinces and 107 plays are dominated by sedimentary rocks and located in the states of Montana and Wyoming. The potential sequestration capacity of the 9 sedimentary provinces within the region ranges from 25,000 to almost 900,000 million metric tons of CO{sub 2}. Overall every sedimentary formation investigated has significant potential to sequester large amounts of CO{sub 2}. Simulations conducted to evaluate mineral trapping potential of mafic volcanic rock formations located in the Idaho province suggest that supercritical CO{sub 2} is converted to solid carbonate mineral within a few hundred years and permanently entombs the carbon. Although MMV for this rock type may be challenging, a carefully chosen combination of geophysical and geochemical techniques should allow assessment of the fate of CO{sub 2} in deep basalt hosted aquifers. Terrestrial carbon sequestration relies on land management practices and technologies to remove atmospheric CO{sub 2} where it is stored in trees, plants, and soil. This indirect sequestration can be implemented today and is on the front line of voluntary, market-based approaches to reduce CO{sub 2} emissions. Initial estimates of terrestrial sinks indicate a vast potential for increasing and maintaining soil Carbon (C) on rangelands, and forested, agricultural, and reclaimed lands. Rangelands can store up to an additional 0.05 mt C/ha/yr, while the croplands are on average four times that amount. Estimates of technical potential for soil sequestration within the region in cropland are in the range of 2.0 M mt C/yr over 20 year time horizon. This is equivalent to approximately 7.0 M mt CO{sub 2}e/yr. The forestry sinks are well documented, and the potential in the Big Sky region ranges from 9-15 M mt CO{sub 2} equivalent per year. Value-added benefits include enhanced yields, reduced erosion, and increased wildlife habitat. Thus the terrestrial sinks provide a viable, environmentally beneficial, and relatively low cost sink that is available to sequester C in the current time frame. The Partnership recognizes the critical importance of measurement, monitoring, and verification technologies to support not only carbon trading but all policies and programs that DOE and other agencies may want to pursue in support of GHG mitigation. The efforts in developing and implementing MMV technologies for geological and terrestrial sequestration re

  10. Annual meeting of Big Sky Carbon Sequestration Partnership to be held Oct. 28, 29 | ...

    E-Print Network [OSTI]

    ... Annual meeting of Big Sky Carbon Sequestration Partnership to be held ... meeting of the Big Sky Carbon Sequestration Partnership to be held ... science policy and technology of carbon capture and storage (CCS). Panels ...

  11. Big Sky, Montana: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)Daddy s BiodieselSky, Montana:

  12. Big Sky Regional Carbon Sequestration Partnership--Validation Phase

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERTWaterSharingBeyondBang orBigProgram

  13. EA-1886: Big Sky Regional Carbon Sequestration Partnership- Phase III: Large Volume CO2 Injection-Site Characterization, Well Drilling, and Infrastructure Development, Injection, MVA, and Site Closure, Kevin Dome, Toole County, Montana

    Broader source: Energy.gov [DOE]

    This EA will evaluate the environmental impacts of a proposal for the Big Sky Carbon Sequestration Regional Partnership to demonstrate the viability and safety of CO2 storage in a regionally significant subsurface formation in Toole County, Montana and to promote the commercialization of future anthropogenic carbon storage in this region.

  14. Fun with Big Sky Learning

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServicesAmesFourFromFuel CellFull CommentsI,5Fun with

  15. Night-sky brightness monitoring in Hong Kong - a city-wide light pollution assessment

    E-Print Network [OSTI]

    Pun, Chun Shing Jason

    2011-01-01

    Results of the first comprehensive light pollution survey in Hong Kong are presented. The night-sky brightness was measured and monitored around the city using a portable light sensing device called the Sky Quality Meter over a 15-month period beginning in March 2008. A total of 1,957 data sets were taken at 199 distinct locations, including urban and rural sites covering all 18 Administrative Districts of Hong Kong. The survey shows that the environmental light pollution problem in Hong Kong is severe - the urban night-skies (sky brightness at 15.0 mag per arcsec square) are on average ~100 times brighter than at the darkest rural sites (20.1 mag per arcsec square), indicating that the high lighting densities in the densely populated residential and commercial areas lead to light pollution. In the worst polluted urban location studied, the night-sky at 13.2 mag per arcsec square can be over 500 times brighter than the darkest sites in Hong Kong. The observed night-sky brightness is found to be affected by hu...

  16. Big Science

    ScienceCinema (OSTI)

    Dr. Thomas Zacharia

    2010-01-08

    Big science seeks big solutions for the most urgent problems of our times. Video courtesy Cray, Inc.

  17. Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

    SciTech Connect (OSTI)

    Haves, Philip; Coffey, Brian; Williams, Scott

    2008-06-11

    The paper describes work to enable improved energy performance of existing and new retail stores belonging to a national chain and thereby also identify measures and tools that would improve the performance of 'big box' stores generally. A detailed energy simulation model of a standard store design was developed and used to: (1) demonstrate the benefits of benchmarking the energy performance of retail stores of relatively standard design using baselines derived from simulation, (2) identify cost-effective improvements in the efficiency of components to be incorporated in the next design cycle, and (3) use simulation to identify potential control strategy improvements that could be adopted in all stores, improving operational efficiency. The core enabling task of the project was to develop an energy model of the current standard design using the EnergyPlus simulation program. For the purpose of verification of the model against actual utility bills, the model was reconfigured to represent twelve existing stores (seven relatively new stores and five older stores) in different US climates and simulations were performed using weather data obtained from the National Weather Service. The results of this exercise, which showed generally good agreement between predicted and measured total energy use, suggest that dynamic benchmarking based on energy simulation would be an effective tool for identifying operational problems that affect whole building energy use. The models of the seven newer stores were then configured with manufacturers performance data for the equipment specified in the current design and used to assess the energy and cost benefits of increasing the efficiency of selected HVAC, lighting and envelope components. The greatest potential for cost-effective energy savings appears to be a substantial increase in the efficiency of the blowers in the roof top units and improvements in the efficiency of the lighting. The energy benefits of economizers on the roof-top units were analyzed and found to be very sensitive to the operation of the exhaust fans used to control building pressurization.

  18. Assessing the impact of feral hog populations on the natural resources of Big Thicket National Preserve 

    E-Print Network [OSTI]

    Chavarria, Pedro Mazier

    2009-05-15

    The Big Thicket National Preserve (BTNP) is a unit of the National Park Service whose mission prioritizes conservation of its wildlands in the United States. One threat to natural resources of the BTNP has been impacts associated with feral hog (Sus...

  19. Big Sky Wind Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcherCarbon Sequestration Partnership

  20. Initial Assessment of the Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR)-Based Aerosol Retrieval: Sensitivity Study

    SciTech Connect (OSTI)

    Kassianov, Evgueni I.; Flynn, Connor J.; Redemann, Jens; Schmid, Beat; Russell, P. B.; Sinyuk, Alexander

    2012-10-24

    The Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR) being developed for airborne measurements will offer retrievals of aerosol microphysical and optical properties from multi-angular and multi-spectral measurements of sky radiance and direct-beam sun transmittance. In this study, we assess the expected accuracy of the 4STAR-based aerosol retrieval and its sensitivity to major sources of anticipated perturbations in the 4STAR measurements by adapting a theoretical approach previously developed for the AERONET measurements. The major anticipated perturbations are (1) an apparent enhancement of sky radiance at small scattering angles associated with the necessarily compact design of the 4STAR and (2) and an offset (i.e. uncertainty) of sky radiance calibration independent of scattering angle. The assessment is performed through application of the operational AERONET aerosol retrieval and constructed synthetic 4STAR-like data. Particular attention is given to the impact of these perturbations on the upwelling and downwelling broadband fluxes and the direct aerosol radiative forcing at the bottom and top of the atmosphere. The results from this study suggest that limitations in the accuracy of 4STAR-retrieved particle size distributions and scattering phase functions have diminished impact on the accuracy of retrieved bulk microphysical parameters, permitting quite accurate retrievals of properties including the effective radius (up to 10%, or 0.03), and the radiatively important optical properties, such as the asymmetry factor (up to 4%, or ±0.02) and single-scattering albedo (up to 6%, or ±0.04). Also, the obtained results indicate that the uncertainties in the retrieved aerosol optical properties are quite small in the context of the calculated fluxes and direct aerosol radiative forcing (up to 15%, or 3 Wm-2).

  1. Big George to Carter Mountain 115-kV transmission line project, Park and Hot Springs Counties, Wyoming. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    The Western Area Power Administration (Western) is proposing to rebuild, operate, and maintain a 115-kilovolt (kV) transmission line between the Big George and Carter Mountain Substations in northwest Wyoming (Park and Hot Springs Counties). This environmental assessment (EA) was prepared in compliance with the National Environmental Policy Act (NEPA) and the regulations of the Council on Environmental Quality (CEQ) and the Department of Energy (DOE). The existing Big George to Carter Mountain 69-kV transmission line was constructed in 1941 by the US Department of Interior, Bureau of Reclamation, with 1/0 copper conductor on wood-pole H-frame structures without an overhead ground wire. The line should be replaced because of the deteriorated condition of the wood-pole H-frame structures. Because the line lacks an overhead ground wire, it is subject to numerous outages caused by lightning. The line will be 54 years old in 1995, which is the target date for line replacement. The normal service life of a wood-pole line is 45 years. Under the No Action Alternative, no new transmission lines would be built in the project area. The existing 69-kV transmission line would continue to operate with routine maintenance, with no provisions made for replacement.

  2. Assessment of Systematic Chromatic Errors that Impact Sub-1% Photometric Precision in Large-Area Sky Surveys

    E-Print Network [OSTI]

    Li, T S; Marshall, J L; Tucker, D; Kessler, R; Annis, J; Bernstein, G M; Boada, S; Burke, D L; Finley, D A; James, D J; Kent, S; Lin, H; Marriner, J; Mondrik, N; Nagasawa, D; Rykoff, E S; Scolnic, D; Walker, A R; Wester, W; Abbott, T M C; Allam, S; Benoit-Lévy, A; Bertin, E; Brooks, D; Capozzi, D; Rosell, A Carnero; Kind, M Carrasco; Carretero, J; Crocce, M; Cunha, C E; D'Andrea, C B; da Costa, L N; Desai, S; Diehl, H T; Doel, P; Flaugher, B; Fosalba, P; Frieman, J; Gaztanaga, E; Goldstein, D A; Gruen, D; Gruendl, R A; Gutierrez, G; Honscheid, K; Kuehn, K; Kuropatkin, N; Maia, M A G; Melchior28, P; Miller, C J; Miquel, R; Mohr, J J; Neilsen, E; Nichol, R C; Nord, B; Ogando, R; Plazas, A A; Romer, A K; Roodman, A; Sako, M; Sanchez, E; Scarpine, V; Schubnell, M; Sevilla-Noarbe, I; Smith, R C; Soares-Santos, M; Sobreira, F; Suchyta, E; Tarle, G; Thomas, D; Vikram, V

    2016-01-01

    Meeting the science goals for many current and future ground-based optical large-area sky surveys requires that the calibrated broadband photometry is stable in time and uniform over the sky to 1% precision or better. Past surveys have achieved photometric precision of 1-2% by calibrating the survey's stellar photometry with repeated measurements of a large number of stars observed in multiple epochs. The calibration techniques employed by these surveys only consider the relative frame-by-frame photometric zeropoint offset and the focal plane position-dependent illumination corrections, which are independent of the source color. However, variations in the wavelength dependence of the atmospheric transmission and the instrumental throughput induce source color-dependent systematic errors. These systematic errors must also be considered to achieve the most precise photometric measurements. In this paper, we examine such systematic chromatic errors using photometry from the Dark Energy Survey (DES) as an example...

  3. A Qualitative Readiness-Requirements Assessment Model for Enterprise Big-Data Infrastructure Investment

    SciTech Connect (OSTI)

    Olama, Mohammed M [ORNL] [ORNL; McNair, Wade [ORNL] [ORNL; Sukumar, Sreenivas R [ORNL] [ORNL; Nutaro, James J [ORNL] [ORNL

    2014-01-01

    In the last three decades, there has been an exponential growth in the area of information technology providing the information processing needs of data-driven businesses in government, science, and private industry in the form of capturing, staging, integrating, conveying, analyzing, and transferring data that will help knowledge workers and decision makers make sound business decisions. Data integration across enterprise warehouses is one of the most challenging steps in the big data analytics strategy. Several levels of data integration have been identified across enterprise warehouses: data accessibility, common data platform, and consolidated data model. Each level of integration has its own set of complexities that requires a certain amount of time, budget, and resources to implement. Such levels of integration are designed to address the technical challenges inherent in consolidating the disparate data sources. In this paper, we present a methodology based on industry best practices to measure the readiness of an organization and its data sets against the different levels of data integration. We introduce a new Integration Level Model (ILM) tool, which is used for quantifying an organization and data system s readiness to share data at a certain level of data integration. It is based largely on the established and accepted framework provided in the Data Management Association (DAMA-DMBOK). It comprises several key data management functions and supporting activities, together with several environmental elements that describe and apply to each function. The proposed model scores the maturity of a system s data governance processes and provides a pragmatic methodology for evaluating integration risks. The higher the computed scores, the better managed the source data system and the greater the likelihood that the data system can be brought in at a higher level of integration.

  4. Environmental Assessment and Finding of No Significant Impact: The Nevada Test Site Development Corporations's Desert Rock Sky Park at the Nevada Test Site

    SciTech Connect (OSTI)

    N /A

    2000-03-01

    The United States Department of Energy has prepared an Environmental Assessment (DOE/EA-1300) (EA) which analyzes the potential environmental effects of developing operating and maintaining a commercial/industrial park in Area 22 of the Nevada Test Site, between Mercury Camp and U.S. Highway 95 and east of Desert Rock Airport. The EA evaluates the potential impacts of infrastructure improvements necessary to support fill build out of the 512-acre Desert Rock Sky Park. Two alternative actions were evaluated: (1) Develop, operate and maintain a commercial/industrial park in Area 22 of the Nevada Test Site, and (2) taking no action. The purpose and need for the commercial industrial park are addressed in Section 1.0 of the EA. A detailed description of the proposed action and alternatives is in section 2.0. Section 3.0 describes the affected environment. Section 4.0 the environmental consequences of the proposed action and alternative. Cumulative effects are addressed in Section 5.0. Mitigation measures are addressed in Section 6.0. The Department of Energy determined that the proposed action of developing, operating and maintaining a commercial/industrial park in Area 22 of the Nevada Test Site would best meet the needs of the agency.

  5. Ground Water Ground Sky Sky Water Vegetation Ground Vegetation Water

    E-Print Network [OSTI]

    Chen, Tsuhan

    Bear Snow Vegetation RhinoWater Vegetation Ground Water Ground Sky Sky Rhino Water Vegetation Ground Vegetation Water Rhino Water Vegetation Ground Rhino Water Rhino Water Ground Ground Vegetation Water Rhino Vegetation Rhino Vegetation Ground Rhino Vegetation Ground Sky Rhino Vegetation Ground Sky

  6. Wide Blue Sky

    E-Print Network [OSTI]

    Collins, Caroline Imani

    2011-01-01

    dressed neatly in a dark blue dress, its high neck trimmedIt was covered in a light blue fabric embellished with softOF CALIFORNIA RIVERSIDE Wide Blue Sky A Thesis submitted in

  7. Satellites provide the big picture

    E-Print Network [OSTI]

    Famiglietti, JS; Cazenave, A; Eicker, A; Reager, JT; Rodell, M; Velicogna, I

    2015-01-01

    provide the necessary “big-picture” spatial coverage, asprovide the big picture gether, these measurements will

  8. BIG CPU, BIG DATABIG CPU, BIG DATA Solving the World's Toughest

    E-Print Network [OSTI]

    Kaminsky, Alan

    BIG CPU, BIG DATABIG CPU, BIG DATA Solving the World's Toughest Computational Problems with Parallel Computing Alan Kaminsky #12;#12;BIG CPU, BIG DATABIG CPU, BIG DATA Solving the World's Toughest College of Computing and Information Sciences Rochester Institute of Technology #12;ii BIG CPU, BIG DATA

  9. Microsoft Word - NEPA Big Sky Final EA .doc

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

    and operation at this site is diesel fuel, which can be spilled. Diesel irritates the lungs and is a skin irritant. Enough diesel exposure can cause death or nervous system...

  10. LANL Deliverable to the Big Sky Carbon Sequestration Partnership...

    Office of Scientific and Technical Information (OSTI)

    of Publication: United States Language: English Subject: Earth Sciences; Energy Sciences; Energy Conservation, Consumption, & Utilization(32); Environmental Sciences(54);...

  11. LANL Deliverable to the Big Sky Carbon Sequestration Partnership...

    Office of Scientific and Technical Information (OSTI)

    Carey, James W. Los Alamos National Laboratory Earth Sciences; Energy Sciences; Energy Conservation, Consumption, & Utilization(32); Environmental Sciences(54);...

  12. Big Sky Carbon Sequestration Partnership | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcherCarbon Sequestration Partnership Jump

  13. LANL Deliverable to the Big Sky Carbon Sequestration Partnership:

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy of aerosols in(JournalTechnicalConnectArticle)!

  14. LANL Deliverable to the Big Sky Carbon Sequestration Partnership:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand Cubic Feet)MultimaterialforLAESFGetting

  15. Introduction Big Radio Data

    E-Print Network [OSTI]

    Prodiæ, Aleksandar

    Introduction VLBI Pulsars Summary Big Radio Data Ue-Li Pen CITA, UofT, CIFAR July 3, 2014U. Pen Big Radio Data #12;Introduction VLBI Pulsars Summary Overview History VLBI Processing Future U. Pen Big signal processing U. Pen Big Radio Data #12;Introduction VLBI Pulsars Summary VLBI Current experiments

  16. Hacking the Sky

    E-Print Network [OSTI]

    Simpson, R J

    2009-01-01

    In this article I present some special astronomical scripts created for Google Earth, Google Sky and Twitter. These 'hacks' are examples of the ways in which such tools can be used either alone, in on conjunction with online services. The result of a combination of multiple, online services to form a new facility is called a mash-up. Some of what follows falls into that definition. As we move into an era of online data and tools, it is the network as a whole that becomes important. Tools emerging from this network can be capable of more than the sum of their parts.

  17. Big Data Begets Big Database Theory University of Washington

    E-Print Network [OSTI]

    Suciu, Dan

    Big Data Begets Big Database Theory Dan Suciu University of Washington 1 Motivation Industry analysts describe Big Data in terms of three V's: volume, velocity, variety. The data is too big to process the technical challenges in big data, but we find no inspiration in the three Vs. Volume is surely nothing new

  18. Big Eddy-Knight

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

    & Reliability Projects Expand Projects Skip navigation links Line Projects Big Eddy-Knight Central Ferry Lower Monumental Grand Coulee Transmission Line Replacement...

  19. Making big data, in theory

    E-Print Network [OSTI]

    Boellstorff, Tom

    2013-01-01

    3.0 Unported License. Making big data, in theory by Tommethods for analyzing big data originate in mid-twentieth2012. “Critical questions for Big Data: Provocations for a

  20. Big Data Privacy Scenarios

    E-Print Network [OSTI]

    Bruce, Elizabeth

    2015-10-01

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

  1. Astronomical Surveys and Big Data

    E-Print Network [OSTI]

    Mickaelian, A M

    2015-01-01

    Recent all-sky and large-area astronomical surveys and their catalogued data over the whole range of electromagnetic spectrum are reviewed, from Gamma-ray to radio, such as Fermi-GLAST and INTEGRAL in Gamma-ray, ROSAT, XMM and Chandra in X-ray, GALEX in UV, SDSS and several POSS I and II based catalogues (APM, MAPS, USNO, GSC) in optical range, 2MASS in NIR, WISE and AKARI IRC in MIR, IRAS and AKARI FIS in FIR, NVSS and FIRST in radio and many others, as well as most important surveys giving optical images (DSS I and II, SDSS, etc.), proper motions (Tycho, USNO, Gaia), variability (GCVS, NSVS, ASAS, Catalina, Pan-STARRS) and spectroscopic data (FBS, SBS, Case, HQS, HES, SDSS, CALIFA, GAMA). An overall understanding of the coverage along the whole wavelength range and comparisons between various surveys are given: galaxy redshift surveys, QSO/AGN, radio, Galactic structure, and Dark Energy surveys. Astronomy has entered the Big Data era. Astrophysical Virtual Observatories and Computational Astrophysics play a...

  2. Big Questions: Missing Antimatter

    ScienceCinema (OSTI)

    Lincoln, Don

    2014-08-07

    Einstein's equation E = mc2 is often said to mean that energy can be converted into matter. More accurately, energy can be converted to matter and antimatter. During the first moments of the Big Bang, the universe was smaller, hotter and energy was everywhere. As the universe expanded and cooled, the energy converted into matter and antimatter. According to our best understanding, these two substances should have been created in equal quantities. However when we look out into the cosmos we see only matter and no antimatter. The absence of antimatter is one of the Big Mysteries of modern physics. In this video, Fermilab's Dr. Don Lincoln explains the problem, although doesn't answer it. The answer, as in all Big Mysteries, is still unknown and one of the leading research topics of contemporary science.

  3. Lighting and Dark Sky Regulations

    E-Print Network [OSTI]

    Radcliffe, David

    Lighting and Dark Sky Regulations Marjorie Palmer Spring 2008 #12;The UGA Land Use Clinic provides Road, Room 101 Athens, GA 30602-1510 (706) 583-0373 · Fax (706) 583-0612 jroskie@uga.edu #12;Lighting......................................................................................................................................1 II. Approaches to Lighting Regulation

  4. Red Sky with Red Mesa

    ScienceCinema (OSTI)

    None

    2014-06-23

    The Red Sky/Red Mesa supercomputing platform dramatically reduces the time required to simulate complex fuel models, from 4-6 months to just 4 weeks, allowing researchers to accelerate the pace at which they can address these complex problems. Its speed also reduces the need for laboratory and field testing, allowing for energy reduction far beyond data center walls.

  5. Rutgers Workshop on Big Data: Theoretical Foundation of Big Data

    E-Print Network [OSTI]

    Jornsten, Rebecka

    Rutgers Workshop on Big Data: Theoretical Foundation of Big Data Department of Statistics:05pm: Welcome and Introduction of Big Data Research at Rutgers Regina Liu, Chair, Department, Carnegie Mellon University "On Data Parallelism and Model Parallelism for Large Scale Machine Learning" 4

  6. Big data and the future of ecology

    E-Print Network [OSTI]

    2013-01-01

    N. 2010. Big science and big data in biology: from theCONCEPTS AND QUESTIONS Big data and the future of ecologyof the information age and “big data” across all sectors of

  7. Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Keith A. Olive

    1997-12-11

    The concordance of standard big bang nucleosynthesis theory and the related observations of the light element isotopes (including some new higher \\he4 abundances) will be reviewed. Implications of BBN on chemical evolution, dark matter and constraints on particle properties will be discussed.

  8. Semantic Interoperability for Big Data

    E-Print Network [OSTI]

    Baclawski, Kenneth B.

    Semantic Interoperability for Big Data Ken Baclawski College of Computer and Information Science Northeastern University #12;August 11, 2014 2 Emergence of Big Data The phenomenon was studied in the early based on the information scarcity model. #12;August 11, 2014 3 Characteristics of Big Data Large

  9. MICROSOFT PRESENTS FROM BIG DATA

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    1 MICROSOFT PRESENTS FROM BIG DATA TO SMART DATA: Using data to drive personalized brand January 22, 2014 ABSTRACT This white paper looks at Big Data from the marketing perspective, running DO WITH IT NEARLY EVERYONE IN MARKETING TODAY SHOULD BE FAMILIAR WITH THE CONCEPT OF BIG DATA

  10. ARM: Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

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

    Krista Gaustad; Laura Riihimaki

    1997-01-01

    Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

  11. ARM: Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

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

    Krista Gaustad; Laura Riihimaki

    Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

  12. Big Windy Hot Springs Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)Daddy s BiodieselSky,Big Windy Hot

  13. Deep Sky Astronomical Image Database

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB Packet HanfordDOEDanielDe novo Design of Debugging6DecodingDeep Sky

  14. Sky Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter Battery Technology CoWanpingSilveira deScienceSky Energy Place:

  15. BIGGER AND BETTER BANGS IN THE SKY

    E-Print Network [OSTI]

    TRIMBLE, V

    1982-01-01

    better hangs in the sky Supernovae are massive stars thatthe traditional prototype of supernovae; and its‘ remains,applicable to other supernovae and remnants. What do we know

  16. Small Particles, Big Impact

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|Sensitive Species3performed StevenSmall Particles, Big Impact

  17. Big Rock Point severe accident management strategies

    SciTech Connect (OSTI)

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

    1996-07-01

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

  18. Escaping the Big Rip?

    E-Print Network [OSTI]

    Mariam Bouhmadi-Lopez; Jose A. Jimenez Madrid

    2004-04-27

    We discuss dark energy models which might describe effectively the actual acceleration of the universe. More precisely, for a 4-dimensional Friedmann-Lema\\^{\\i}tre-Robertson-Walker (FLRW) universe we consider two situations: First of them, we model dark energy by phantom energy described by a perfect fluid satisfying the equation of state $P=(\\beta-1)\\rho$ (with $\\beta<0$ and constant). In this case the universe reaches a ``Big Rip'' independently of the spatial geometry of the FLRW universe. In the second situation, the dark energy is described by a phantom (generalized) Chaplygin gas which violates the dominant energy condition. Contrary to the previous case, for this material content a FLRW universe would never reach a ``big rip'' singularity (indeed, the geometry is asymptotically de Sitter). We also show how this dark energy model can be described in terms of scalar fields, corresponding to a minimally coupled scalar field, a Born-Infeld scalar field and a generalized Born-Infeld scalar field. Finally, we introduce a phenomenologically viable model where dark energy is described by a phantom generalized Chaplygin gas.

  19. Debunking Six Big Myths about Nuclear Weapons

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

    Debunking Six Big Myths about Nuclear Weapons National Security Science Latest Issue:December 2014 All Issues submit Debunking six big myths about nuclear weapons Are nuclear...

  20. Big Canyon Creek Ecological Restoration Strategy.

    SciTech Connect (OSTI)

    Rasmussen, Lynn; Richardson, Shannon

    2007-10-01

    He-yey, Nez Perce for steelhead or rainbow trout (Oncorhynchus mykiss), are a culturally and ecologically significant resource within the Big Canyon Creek watershed; they are also part of the federally listed Snake River Basin Steelhead DPS. The majority of the Big Canyon Creek drainage is considered critical habitat for that DPS as well as for the federally listed Snake River fall chinook (Oncorhynchus tshawytscha) ESU. The Nez Perce Soil and Water Conservation District (District) and the Nez Perce Tribe Department of Fisheries Resources Management-Watershed (Tribe), in an effort to support the continued existence of these and other aquatic species, have developed this document to direct funding toward priority restoration projects in priority areas for the Big Canyon Creek watershed. In order to achieve this, the District and the Tribe: (1) Developed a working group and technical team composed of managers from a variety of stakeholders within the basin; (2) Established geographically distinct sub-watershed areas called Assessment Units (AUs); (3) Created a prioritization framework for the AUs and prioritized them; and (4) Developed treatment strategies to utilize within the prioritized AUs. Assessment Units were delineated by significant shifts in sampled juvenile O. mykiss (steelhead/rainbow trout) densities, which were found to fall at fish passage barriers. The prioritization framework considered four aspects critical to determining the relative importance of performing restoration in a certain area: density of critical fish species, physical condition of the AU, water quantity, and water quality. It was established, through vigorous data analysis within these four areas, that the geographic priority areas for restoration within the Big Canyon Creek watershed are Big Canyon Creek from stream km 45.5 to the headwaters, Little Canyon from km 15 to 30, the mainstem corridors of Big Canyon (mouth to 7km) and Little Canyon (mouth to 7km). The District and the Tribe then used data collected from the District's stream assessment and inventory, utilizing the Stream Visual Assessment Protocol (SVAP), to determine treatment necessary to bring 90% of reaches ranked Poor or Fair through the SVAP up to good or excellent. In 10 year's time, all reaches that were previously evaluated with SVAP will be reevaluated to determine progress and to adapt methods for continued success. Over 400 miles of stream need treatment in order to meet identified restoration goals. Treatments include practices which result in riparian habitat improvements, nutrient reductions, channel condition improvements, fish habitat improvements, invasive species control, water withdrawal reductions, improved hydrologic alterations, upland sediment reductions, and passage barrier removal. The Nez Perce Soil and Water Conservation District (District) and the Nez Perce Tribe Department of Fisheries Resource Management Watershed Division (Tribe) developed this document to guide restoration activities within the Big Canyon Creek watershed for the period of 2008-2018. This plan was created to demonstrate the ongoing need and potential for anadromous fish habitat restoration within the watershed and to ensure continued implementation of restoration actions and activities. It was developed not only to guide the District and the Tribe, but also to encourage cooperation among all stakeholders, including landowners, government agencies, private organizations, tribal governments, and elected officials. Through sharing information, skills, and resources in an active, cooperative relationships, all concerned parties will have the opportunity to join together to strengthen and maintain a sustainable natural resource base for present and future generations within the watershed. The primary goal of the strategy is to address aquatic habitat restoration needs on a watershed level for resident and anadromous fish species, promoting quality habitat within a self-sustaining watershed. Seven objectives have been developed to support this goal: (1) Identify factors limiting quality

  1. Big Iron for Big Data: An Unnatural Alliance?

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERTWaterSharingBeyondBang or BigBigBig

  2. A Radiometric All-Sky Infrared Camera (RASICAM) for DES/CTIO

    SciTech Connect (OSTI)

    Lewis, Peter M.; Rogers, Howard; Schindler, Rafe H.; /SLAC

    2010-08-25

    A novel radiometric all-sky infrared camera [RASICAM] has been constructed to allow automated real-time quantitative assessment of night sky conditions for the Dark Energy Camera [DECam] located on the Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile. The camera is optimized to detect the position, motion and optical depth of thin, high (8-10km) cirrus clouds and contrails by measuring their apparent temperature above the night sky background. The camera system utilizes a novel wide-field equiresolution catadioptic mirror system that provides sky coverage of 2{pi} azimuth and 14-90{sup o} from zenith. Several new technological and design innovations allow the RASICAM system to provide unprecedented cloud detection and IR-based photometricity quantification. The design of the RASICAM system is presented.

  3. Deep Sky Astronomical Image Database Project at NERSC

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

    Deep Sky Astronomical Image Database Deep Sky Astronomical Image Database Key Challenges: Develop, store, analyze, and make available an astronomical image database of...

  4. Clean Cities: Land of Sky Clean Vehicles coalition (Western North...

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

    Land of Sky Clean Vehicles Coalition (Western North Carolina) The Land of Sky Clean Vehicles coalition (Western North Carolina) works with vehicle fleets, fuel providers, community...

  5. BIG DATA IMPLEMENTATION COMMITTEE Submitted to Provost Hexter

    E-Print Network [OSTI]

    Ullrich, Paul

    BIG DATA IMPLEMENTATION COMMITTEE REPORT Submitted to Provost Hexter February 22, 2013 #12..................................................................................................................................... 5 1. Big Data, Big Challenges, Big Opportunities ......................................................................................... 5 2. UC Davis and Big Data: State of the Art and Current Needs

  6. The Sloan Digital Sky Survey

    E-Print Network [OSTI]

    Bruce Margon

    1998-08-19

    The Sloan Digital Sky Survey is an ambitious, multi-institutional project to create a huge digital imaging and spectroscopic data bank of 25% of the celestial sphere, approximately 10,000 deg^2 centred on the north galactic polar cap. The photometric atlas will be in 5 specially-chosen colours, covering the pi ster of the Survey area to a limiting magnitude of r~23.1, on 0.4" pixels, resulting in a 1 Tpixel map. This data base will be automatically analysed to catalog the photometric and astrometric properties of 10^8 stellar images, 10^8 galaxies, and 10^6 colour-selected QSO candidates; the galaxy data will in addition include detailed morphological data. The photometric data are used to autonomously and homogeneously select objects for the spectroscopic survey, which will include spectra of 10^6 galaxies, 10^5 QSOs, and 10^5 unusual stars. Although the project was originally motivated by the desire to study Large Scale Structure, we anticipate that these data will impact virtually every field of astronomy, from Earth-crossing asteroids to QSOs at z>6. In particular, the ~12 TByte multi-colour, precision calibrated imaging archive should be a world resource for many decades of the next century.

  7. Physics: the big black box Mirror conjecture

    E-Print Network [OSTI]

    Cavalieri, Renzo

    Physics: the big black box Math Mirror conjecture A look into the mirror (I) an overview of Mirror Symmetry #12;Physics: the big black box Math Mirror conjecture Outline 1 Physics: the big black box 2 Math Symmetry #12;Physics: the big black box Math Mirror conjecture A slogan Mirror Symmetry is a correspondence

  8. Big Data Analytics in Financial Statement

    E-Print Network [OSTI]

    ;Demographic and Weather Big Data · OfficeMax personalizes online landing pages based on customerBig Data Analytics in Financial Statement Audits Min Cao Roman Chychyla Trevor Stewart February 26th, 2015 #12;Big Data Analytics · Big Data analytics is the process of inspecting, cleaning

  9. The big picture Victoria University of Wellington

    E-Print Network [OSTI]

    Visser, Matt

    Outline Abstract Basics The big picture Victoria University of Wellington Te Whare W¯ananga o te Overview of modern cosmology #12;Outline Abstract Basics The big picture Outline: Abstract Basics The big picture Matt Visser Overview of modern cosmology #12;Outline Abstract Basics The big picture Abstract: VUW

  10. Making big data, in theory

    E-Print Network [OSTI]

    Boellstorff, Tom

    2013-01-01

    for this work. Notes 1. Curran, 2012, pp. 34, 60. 2. Peng etin-big-data/, accessed 5 July 2013. James Curran, 2012. “Internet history,” In: James Curran, Natalie Fenton, and Des

  11. Big Bang Nucleosynthesis: 2015

    E-Print Network [OSTI]

    Cyburt, Richard H; Olive, Keith A; Yeh, Tsung-Han

    2015-01-01

    Big-bang nucleosynthesis (BBN) describes the production of the lightest nuclides via a dynamic interplay among the four fundamental forces during the first seconds of cosmic time. We briefly overview the essentials of this physics, and present new calculations of light element abundances through li6 and li7, with updated nuclear reactions and uncertainties including those in the neutron lifetime. We provide fits to these results as a function of baryon density and of the number of neutrino flavors, N_nu. We review recent developments in BBN, particularly new, precision Planck cosmic microwave background (CMB) measurements that now probe the baryon density, helium content, and the effective number of degrees of freedom, n_eff. These measurements allow for a tight test of BBN and of cosmology using CMB data alone. Our likelihood analysis convolves the 2015 Planck data chains with our BBN output and observational data. Adding astronomical measurements of light elements strengthens the power of BBN. We include a ...

  12. Sky coverage of orbital detectors. Analytical approach

    E-Print Network [OSTI]

    Diego Casadei

    2005-12-28

    Orbital detectors without pointing capability have to keep their field of view axis laying on their orbital plane, to observe the largest sky fraction. A general approach to estimate the exposure of each sky element for such detectors is a valuable tool in the R&D phase of a project, when the detector characteristics are still to be fixed. An analytical method to estimate the sky exposure is developed, which makes only few very reasonable approximations. The formulae obtained with this method are used to compute the histogram of the sky exposure of a hypothetical gamma-ray detector installed on the ISS. The C++ code used in this example is freely available on the http://cern.ch/casadei/software.html web page.

  13. Scientometrics of big science: a case study of research in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    Chen, Chaomei

    -scale scientific project Introduction Large-scale scientific projects, such as the Human Genome Project (HGP of dollars of funding (for example, HGP has cost three billion dollars1 ), have a large number of members eight countries, www.sdss.org), and last more than 5 years or even longer (HGP is a 13-year project

  14. Where the Sky Is the Right Color: Scale and Air Pollution in the Big Bend Region

    E-Print Network [OSTI]

    Donez, Francisco Juan

    2010-01-01

    Politics of Transboundary Air Pollution. Lawrence, Kansas:W. Stationary Source Air Pollution Law. Washington, D. C. :Public Understandings of Air Pollution: The ‘Localisation’

  15. Where the Sky Is the Right Color: Scale and Air Pollution in the Big Bend Region

    E-Print Network [OSTI]

    Donez, Francisco Juan

    2010-01-01

    the haze to two large coal-fired power plants in the city ofreceived word about two coal fired power plants outside thethe Belews Creek coal-fired plant in West Virginia also

  16. Ancient Lava Flows Trap CO2 for Long-Term Storage in Big Sky Injection |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t yWaste | Department of Energy The ruins of a

  17. Big Bayou Creek and Little Bayou Creek Watershed Monitoring Program

    SciTech Connect (OSTI)

    Kszos, L.A.; Peterson, M.J.; Ryon; Smith, J.G.

    1999-03-01

    Biological monitoring of Little Bayou and Big Bayou creeks, which border the Paducah Site, has been conducted since 1987. Biological monitoring was conducted by University of Kentucky from 1987 to 1991 and by staff of the Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL) from 1991 through March 1999. In March 1998, renewed Kentucky Pollutant Discharge Elimination System (KPDES) permits were issued to the US Department of Energy (DOE) and US Enrichment Corporation. The renewed DOE permit requires that a watershed monitoring program be developed for the Paducah Site within 90 days of the effective date of the renewed permit. This plan outlines the sampling and analysis that will be conducted for the watershed monitoring program. The objectives of the watershed monitoring are to (1) determine whether discharges from the Paducah Site and the Solid Waste Management Units (SWMUs) associated with the Paducah Site are adversely affecting instream fauna, (2) assess the ecological health of Little Bayou and Big Bayou creeks, (3) assess the degree to which abatement actions ecologically benefit Big Bayou Creek and Little Bayou Creek, (4) provide guidance for remediation, (5) provide an evaluation of changes in potential human health concerns, and (6) provide data which could be used to assess the impact of inadvertent spills or fish kill. According to the cleanup will result in these watersheds [Big Bayou and Little Bayou creeks] achieving compliance with the applicable water quality criteria.

  18. A Big Data Approach to Analyzing Market Volatility

    E-Print Network [OSTI]

    Wu, Kesheng

    2014-01-01

    A Big Data Approach to Analyzing Market Volatility KeshengUniversity of California. A Big Data Approach to Analyzingefforts to handle the big data problem. However, the

  19. SkyFuel Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter Battery Technology CoWanpingSilveira deScienceSky EnergySkyFuel Inc

  20. SkyPilot Networks | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter Battery Technology CoWanpingSilveira deScienceSky EnergySkyFuel

  1. Big data : evolution, components, challenges and opportunities

    E-Print Network [OSTI]

    Zarate Santovena, Alejandro

    2013-01-01

    This work reviews the evolution and current state of the "Big Data" industry, and to understand the key components, challenges and opportunities of Big Data and analytics face in today business environment, this is analyzed ...

  2. THE BIG PICTURE: A "FISHERY SYSTEM APPROACH"

    E-Print Network [OSTI]

    Charles, Anthony

    THE BIG PICTURE: A "FISHERY SYSTEM APPROACH" LINKS FISHERY MANAGEMENT AND BIODIVERSITY Anthony economy and coastal communities. Accordingly, there is a need to move toward a "big picture" perspective

  3. How to Lie with Big Data (and/or big computations)

    E-Print Network [OSTI]

    Stark, Philip B.

    How to Lie with Big Data (and/or big computations) Philip B. Stark Department of Statistics experimental design doesn't matter #12;What's new in Big Data? · design still matters; experiments versus flu trends http://bits.blogs.nytimes.com/2014/03/28/ google-flu-trends-the-limits-of-big-data/ #12

  4. Big Things from Small Beginnings

    Broader source: Energy.gov [DOE]

    Slide Presentation given by D. Bullen on behalf of Peter S. Winokur, Ph.D., Chairman Defense Nuclear Facilities Safety Board; prepared by D. Bullen, D. Owen, J. MacSleyne, and D. Minnema. Big Things from Small Beginnings. How seemingly unimportant situations can lead to significant, undesirable events.

  5. Big Explosives Experimental Facility - BEEF

    ScienceCinema (OSTI)

    None

    2015-01-07

    The Big Explosives Experimental Facility or BEEF is a ten acre fenced high explosive testing facility that provides data to support stockpile stewardship and other national security programs. At BEEF conventional high explosives experiments are safely conducted providing sophisticated diagnostics such as high speed optics and x-ray radiography.

  6. Neutrinos and Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    A. D. Dolgov

    2002-03-18

    The role of neutrinos in big bang nucleosynthesis is discussed. The bounds on the number of neutrino families, neutrino degeneracy, parameters of neutrino oscillations are presented. A model of chemically inhomogeneous, while energetically smooth, universe created by inhomogeneous cosmological neutrino asymmetry is described. Nucleosynthesis limits on production of right-handed neutrinos are considered.

  7. Big Explosives Experimental Facility - BEEF

    SciTech Connect (OSTI)

    None

    2014-10-31

    The Big Explosives Experimental Facility or BEEF is a ten acre fenced high explosive testing facility that provides data to support stockpile stewardship and other national security programs. At BEEF conventional high explosives experiments are safely conducted providing sophisticated diagnostics such as high speed optics and x-ray radiography.

  8. Big Data in Technology Services Mathew Benwell

    E-Print Network [OSTI]

    Balasuriya, Sanjeeva

    Big Data in Technology Services #12;Presenter Mathew Benwell Security Specialist Click here to watch online video University of Adelaide 2 #12;What is Big Data ­ 3 V's University of Adelaide 3 #12;Our Big Data Platform ­ Splunk> · The most asked question! Where did the name Splunk come from

  9. Automated Sky Search Max Doppke (RET)

    E-Print Network [OSTI]

    Cinabro, David

    of reliable software programs, a quality telescope, and a compatible CCD (charged coupling device) camera. My introductory period was spent working with the `SKY6' astronomy software by Software Bisque, Inc. This software an additional piece of software, called `Orchestrate'. Designed by #12;Software Bisque, it fully integrates

  10. Sublime endeavours : connecting earth to sky

    E-Print Network [OSTI]

    Kain, Jacob E. (Jacob Evelyn), 1974-

    2000-01-01

    We live in an era in which we come closer everyday to conquering the elements, to a degree that earlier humans could scarcely dream of. Nearly one hundred years ago, we took to the skies, and learned to fly. Today the act ...

  11. Rolling the Dice on Big Data Department of Mathematics

    E-Print Network [OSTI]

    Ipsen, Ilse

    Rolling the Dice on Big Data Ilse Ipsen Department of Mathematics #12;The Economist, 27 February on Big Data What is "Big"? #12;Measuring Units 1 byte 1 character 10 bytes 1 word 100 bytes 1 sentence #12;Rolling the Dice on Big Data Data #12;Rolling the Dice on Big Data #12;Rolling the Dice on Big

  12. Influence of sky conditions on carbon dioxide uptake by forests 

    E-Print Network [OSTI]

    Dengel, Sigrid

    2009-01-01

    Sky conditions play an important role in the Earth’s climate system, altering the solar radiation reaching the Earth’s surface and determining the fraction of incoming direct and diffuse radiation. Sky conditions dictate ...

  13. Big Bang Day : The Great Big Particle Adventure - 3. Origins

    ScienceCinema (OSTI)

    None

    2011-04-25

    In this series, comedian and physicist Ben Miller asks the CERN scientists what they hope to find. If the LHC is successful, it will explain the nature of the Universe around us in terms of a few simple ingredients and a few simple rules. But the Universe now was forged in a Big Bang where conditions were very different, and the rules were very different, and those early moments were crucial to determining how things turned out later. At the LHC they can recreate conditions as they were billionths of a second after the Big Bang, before atoms and nuclei existed. They can find out why matter and antimatter didn't mutually annihilate each other to leave behind a Universe of pure, brilliant light. And they can look into the very structure of space and time - the fabric of the Universe

  14. Concentric circles in WMAP data may provide evidence of violent pre-Big-Bang activity

    E-Print Network [OSTI]

    V. G. Gurzadyan; R. Penrose

    2010-11-16

    Conformal cyclic cosmology (CCC) posits the existence of an aeon preceding our Big Bang 'B', whose conformal infinity 'I' is identified, conformally, with 'B', now regarded as a spacelike 3-surface. Black-hole encounters, within bound galactic clusters in that previous aeon, would have the observable effect, in our CMB sky, of families of concentric circles over which the temperature variance is anomalously low, the centre of each such family representing the point of 'I' at which the cluster converges. These centres appear as fairly randomly distributed fixed points in our CMB sky. The analysis of Wilkinson Microwave Background Probe's (WMAP) cosmic microwave background 7-year maps does indeed reveal such concentric circles, of up to 6{\\sigma} significance. This is confirmed when the same analysis is applied to BOOMERanG98 data, eliminating the possibility of an instrumental cause for the effects. These observational predictions of CCC would not be easily explained within standard inflationary cosmology.

  15. THE BLUE SKY CATASTROPHE ON THE KLEIN BOTTLE

    E-Print Network [OSTI]

    Zhang, Meirong

    THE BLUE SKY CATASTROPHE ON THE KLEIN BOTTLE Weigu Li and Meirong Zhang Department of Mathematics orbit, the so-called blue sky catastrophe. Let's begin with the definition. Definition 1 One-parameter family of vector fields on a compact manifold has a blue sky catastrophe if for all parameter values from

  16. Big solar-panel maker First Solar and Colorado's Clean Energy Collective

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)Daddy s BiodieselSky,Big Windy

  17. This document introduces the "Big Telescope collection", a set of teaching resources held on the National STEM-library that use these giant instruments as an inspirational context for STEM learning.

    E-Print Network [OSTI]

    pollution, including the natural "light pollution" caused by the Moon (and the Sun!). So astronomers choose to gather light from across the Cosmos. The telescopes are huge international endeavours, carefully planned of observations. · Dark skies. Big telescopes ­ just like naked-eye stargazers ­ need to be away from light

  18. Cloudy Skies: Assessing Public Understanding of Global Warming

    E-Print Network [OSTI]

    Sterman, John

    2003-02-03

    Surveys show most Americans believe global warming is real. But many advocate delaying action until there is more evidence that warming is harmful. The stock and ...

  19. Cloudy Skies: Assessing Public Understanding of Global Warming

    E-Print Network [OSTI]

    Sterman, John

    2002-06-07

    Surveys show most Americans believe global warming is real. But many advocate delaying action until there is more evidence that warming is harmful. The stock and ...

  20. Traffic information computing platform for big data

    SciTech Connect (OSTI)

    Duan, Zongtao Li, Ying Zheng, Xibin Liu, Yan Dai, Jiting Kang, Jun

    2014-10-06

    Big data environment create data conditions for improving the quality of traffic information service. The target of this article is to construct a traffic information computing platform for big data environment. Through in-depth analysis the connotation and technology characteristics of big data and traffic information service, a distributed traffic atomic information computing platform architecture is proposed. Under the big data environment, this type of traffic atomic information computing architecture helps to guarantee the traffic safety and efficient operation, more intelligent and personalized traffic information service can be used for the traffic information users.

  1. A different Big Bang theory: Los Alamos

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

    different Big Bang theory: Los Alamos unveils explosives detection expertise February 19, 2015 Collaboration project defeats explosives threats through enhanced detection...

  2. 3/12/2015 1 Big Data in Accounting

    E-Print Network [OSTI]

    3/12/2015 1 Big Data in Accounting: An Overview #12;2 The Meaning of Big Data · Differs across of Storage · Processing #12;3 Accounting and Big Data · Big Data has the potential to cause a paradigm shift the current structured data stores of ERPs. #12;Non-traditional Big Data · Addition of new types of data

  3. Big Efficieny for Small Manufacturing 

    E-Print Network [OSTI]

    Trombley, D.

    2014-01-01

    stream_source_info ESL-IE-14-05-10.pdf.txt stream_content_type text/plain stream_size 6203 Content-Encoding UTF-8 stream_name ESL-IE-14-05-10.pdf.txt Content-Type text/plain; charset=UTF-8 Big Efficiency for Small... and corporate memberships • Research and technical assistance • Data on real world experiences, best practices • Policies advancing market transformation/market development • Education and Advocacy • Conferences, publications • National, state and local ESL...

  4. Big bang nucleosynthesis: An update

    SciTech Connect (OSTI)

    Olive, Keith A. [William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)] [William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)

    2013-07-23

    An update on the standard model of big bang nucleosynthesis (BBN) is presented. With the value of the baryon-tophoton ratio determined to high precision by WMAP, standard BBN is a parameter-free theory. In this context, the theoretical prediction for the abundances of D, {sup 4}He, and {sup 7}Li is discussed and compared to their observational determination. While concordance for D and {sup 4}He is satisfactory, the prediction for {sup 7}Li exceeds the observational determination by a factor of about four. Possible solutions to this problem are discussed.

  5. Big Data Hits the Beamline

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and ChronicBestBeyond theBid-ListBig Data

  6. Big Sol - Facilities - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and ChronicBestBeyond theBid-ListBig

  7. Yushu Yao Big Data @ NERSC

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos Alamos verifies largest single|YejunOpportunityYue Lu Yue LuYao Big

  8. Big Data Big Talent The Master's in Business Analytics program starting Spring 2015 is designed to

    E-Print Network [OSTI]

    Huang, Haiying

    Business Analytics Big Data Big Talent The Master's in Business Analytics program starting Spring Intelligence Web and Social Analytics Big Data Analytics Python for Data Analytics Forecasting Applied 2015 is designed to create an empowered workforce that understands how data - regardless of size

  9. Report on the Night of the Big Wind The Big Wind of 1839 was

    E-Print Network [OSTI]

    Report on the Night of the Big Wind The Big Wind of 1839 was Ireland's worst natural disaster. It brought hurricane force winds very rare in such a temperate climate during the night of 6th - 7th January a coincidence. The day before the `Night of the Big Wind' was Little Christmas, the day when the date Christmas

  10. Evidence of cross-correlation between the CMB lensing and the gamma-ray sky

    E-Print Network [OSTI]

    N. Fornengo; L. Perotto; M. Regis; S. Camera

    2015-03-02

    We report the measurement of the angular power spectrum of cross-correlation between the unresolved component of the Fermi-LAT gamma-ray sky-maps and the CMB lensing potential map reconstructed by the Planck satellite. The matter distribution in the Universe determines the bending of light coming from the last scattering surface. At the same time, the matter density drives the growth history of astrophysical objects, including their capability at generating non-thermal phenomena, which in turn give rise to gamma-ray emissions. The Planck lensing map provides information on the integrated distribution of matter, while the integrated history of gamma-ray emitters is imprinted in the Fermi-LAT sky maps. We report here the first evidence of their correlation. We find that the multipole dependence of the cross-correlation measurement is in agreement with current models of the gamma-ray luminosity function for AGN and star forming galaxies, with a statistical evidence of 3.0$\\sigma$. Moreover, its amplitude can in general be matched only assuming that these extra-galactic emitters are also the bulk contribution of the measured isotopic gamma-ray background (IGRB) intensity. This leaves little room for a big contribution from galactic sources to the IGRB measured by Fermi-LAT, pointing toward a direct evidence of the extragalactic origin of the IGRB.

  11. American Clean Skies Foundation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to: navigation, search Name:AmbataSkies Foundation Jump to:

  12. Sky Solar Global SA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter Battery Technology CoWanpingSilveira deScienceSky Energy

  13. SolarSkies | Open Energy Information

    Open Energy Info (EERE)

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

  14. Desert Sky Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation9) WindGridDeepiSolar and WindQueen GeothermalSky

  15. New Sky Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to: navigation,NationalJersey/Incentives <EnergyOrleansSky Energy Jump

  16. North Sky River | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to:Information 3rd| OpenInformation 9thNorthNewton SchoolNorthSky

  17. Green Skies of Brazil |GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Lowï‚— We want USDOE to vitrify allfromGreenGreen Skies

  18. Tools for Extracting Actionable Medical Knowledge from Genomic Big Data

    E-Print Network [OSTI]

    Goldstein, Theodore Charles

    2013-01-01

    KNOWLEDGE FROM GENOMIC BIG DATA A dissertation submitted inKNOWLEDGE FROM GENOMIC BIG DATA By Theodore C. Goldsteinby the quantities of big data from these assays and cannot

  19. Seeing the sky through Hubble's eye: The COSMOS SkyWalker

    E-Print Network [OSTI]

    K. Jahnke; S. F. Sanchez; A. Koekemoer

    2006-07-23

    Large, high-resolution space-based imaging surveys produce a volume of data that is difficult to present to the public in a comprehensible way. While megapixel-sized images can still be printed out or downloaded via the World Wide Web, this is no longer feasible for images with 10^9 pixels (e.g., the Hubble Space Telescope Advanced Camera for Surveys [ACS] images of the Galaxy Evolution from Morphology and SEDs [GEMS] project) or even 10^10 pixels (for the ACS Cosmic Evolution Survey [COSMOS]). We present a Web-based utility called the COSMOS SkyWalker that allows viewing of the huge ACS image data set, even through slow Internet connections. Using standard HTML and JavaScript, the application successively loads only those portions of the image at a time that are currently being viewed on the screen. The user can move within the image by using the mouse or interacting with an overview image. Using an astrometrically registered image for the COSMOS SkyWalker allows the display of calibrated world coordinates for use in science. The SkyWalker "technique" can be applied to other data sets. This requires some customization, notably the slicing up of a data set into small (e.g., 256^2 pixel) subimages. An advantage of the SkyWalker is the use of standard Web browser components; thus, it requires no installation of any software and can therefore be viewed by anyone across many operating systems.

  20. Reliability Meets Big Data: Opportunities and Challenges

    E-Print Network [OSTI]

    McCalley, James D.

    Reliability Meets Big Data: Opportunities and Challenges William Q. Meeker Department of Statistics maintenance operations. 1.2 Examples of systems providing big data Some examples of particular systems 1, 2013 Abstract Reliability field data such as that obtained from warranty claims and maintenance

  1. GREEN IT STRATEGY WHITE PAPER BIG DATA.

    E-Print Network [OSTI]

    Chou, James

    GREEN IT STRATEGY WHITE PAPER BIG DATA. BIG ENERGY. #12;GREEN:ons in MassachuseUs. In one day, Odyssey's cloud compu:ng power can process the same amount of 250 more kilowaUs annually. HARVARD'S GREEN IT COMMITMENT Achieve University

  2. The big picture Victoria University of Wellington

    E-Print Network [OSTI]

    Visser, Matt

    Abstract Basics The big picture Victoria University of Wellington Te Whare W¯ananga o te ¯Upoko o picture Abstract: VUW Modern cosmology is an interesting mixture -- some aspects of cosmology are now... #12;Abstract Basics The big picture Basics: Some parts of cosmology are rock solid: Yes, the universe

  3. ARM: Gridded (0.25 x 0.25 lat/lon) fractional cloud cover, clear-sky and all-sky shortwave flux over the SGP site.

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

    Krista Gaustad; Laura Riihimaki

    Gridded (0.25 x 0.25 lat/lon) fractional cloud cover, clear-sky and all-sky shortwave flux over the SGP site.

  4. Photometry from online Digitized Sky Survey Plates

    E-Print Network [OSTI]

    A. Bacher; S. Kimeswenger; P. Teutsch

    2005-07-22

    Online Digital Sky Survey (DSS) material is often used to obtain information on newly discovered variable stars for older epochs (e.g. Nova progenitors, flare stars, ...). We present here the results of an investigation of photometry on online digital sky survey material in small fields calibrated by CCD sequences. We compared different source extraction mechanisms and found, that even down near to the sensitivity limit, despite the H-compression used for the online material, photometry with an accuracy better than 0\\fm1 rms is possible on DSS-II. Our investigation shows that the accuracy depends strongly on the source extraction method. The SuperCOSMOS scans, although retrieved with an higher spatial resolution, do not give us better results. The methods and parameters presented here, allow the user to obtain good plate photometry in small fields down to the Schmidt plate survey limits with a few bright CCD calibrators, which may be calibrated with amateur size telescopes. Especially for the events mentioned above, new field photometry for calibration purposes mostly exists, but the progenitors were not measured photometrically before. Also the follow up whether stellar concentrations are newly detected clusters or similar work may be done without using mid size telescopes. The calibration presented here is a "local" one for small fields. We show that this method presented here gives higher accuracies than "global" calibrations of surveys (e.g. GSC-II, SuperCOSMOS and USNO-B)

  5. SkyMine Carbon Mineralization Pilot Project

    SciTech Connect (OSTI)

    Joe Jones; Clive Barton; Mark Clayton; Al Yablonsky; David Legere

    2010-09-30

    This Topical Report addresses accomplishments achieved during Phase 1 of the SkyMine{reg_sign} Carbon Mineralization Pilot Project. The primary objectives of this project are to design, construct, and operate a system to capture CO{sub 2} from a slipstream of flue gas from a commercial coal-fired cement kiln, convert that CO{sub 2} to products having commercial value (i.e., beneficial use), show the economic viability of the CO{sub 2} capture and conversion process, and thereby advance the technology to a point of readiness for commercial scale demonstration and proliferation. The project will also substantiate market opportunities for the technology by sales of chemicals into existing markets, and identify opportunities to improve technology performance and reduce costs at commercial scale. The primary objectives of Phase 1 of the project were to elaborate proven SkyMine{reg_sign} process chemistry to commercial pilot-scale operation and complete the preliminary design ('Reference Plant Design') for the pilot plant to be built and operated in Phase 2. Additionally, during Phase 1, information necessary to inform a DOE determination regarding NEPA requirements for the project was developed, and a comprehensive carbon lifecycle analysis was completed. These items were included in the formal application for funding under Phase 2. All Phase 1 objectives were successfully met on schedule and within budget.

  6. SkyMine Carbon Mineralization Pilot Project

    SciTech Connect (OSTI)

    Christenson, Norm; Walters, Jerel

    2014-12-31

    This Topical Report addresses accomplishments achieved during Phase 2b of the SkyMine® Carbon Mineralization Pilot Project. The primary objectives of this project are to design, construct, and operate a system to capture CO2 from a slipstream of flue gas from a commercial coal-fired cement kiln, convert that CO2 to products having commercial value (i.e., beneficial use), show the economic viability of the CO2 capture and conversion process, and thereby advance the technology to the point of readiness for commercial scale demonstration and deployment. The overall process is carbon negative, resulting in mineralization of CO2 that would otherwise be released into the atmosphere. The project will also substantiate market opportunities for the technology by sales of chemicals into existing markets, and identify opportunities to improve technology performance and reduce costs at the commercial scale. The project is being conducted in two phases. The primary objectives of Phase 1 were to evaluate proven SkyMine® process chemistry for commercial pilot-scale operation and complete the preliminary design for the pilot plant to be built and operated in Phase 2, complete a NEPA evaluation, and develop a comprehensive carbon life cycle analysis. The objective of Phase 2b was to build the pilot plant to be operated and tested in Phase 2c.

  7. NREL Success Stories - SkyFuel Partnership Reflects Bright Future

    ScienceCinema (OSTI)

    Jorgensen, Gary; Gee, Randy

    2013-05-29

    NREL Scientists and SkyFuel share a story about how their partnership has resulted in a revolutionary concentrating solar power technology ReflecTech Mirror Film.

  8. A SKY-HIGH CHALLENGE: THE CARBON FOOTPRINT OF AVIATION IN BRITISH COLUMBIA, CANADA, AND MEASURES TO MITIGATE IT

    E-Print Network [OSTI]

    Pedersen, Tom

    A SKY-HIGH CHALLENGE: THE CARBON FOOTPRINT OF AVIATION IN BRITISH COLUMBIA, CANADA, AND MEASURES but not subnational scale. In this thesis, I present what seems to be the first detailed analysis of the carbon footprint (CF) of civil aviation at a subnational level together with an assessment of what key stakeholders

  9. Quark mass variation constraints from Big Bang nucleosynthesis...

    Office of Scientific and Technical Information (OSTI)

    Quark mass variation constraints from Big Bang nucleosynthesis Citation Details In-Document Search Title: Quark mass variation constraints from Big Bang nucleosynthesis We study...

  10. Big Mysteries: The Higgs Mass

    SciTech Connect (OSTI)

    Lincoln, Don

    2014-04-28

    With the discovery of what looks to be the Higgs boson, LHC researchers are turning their attention to the next big question, which is the predicted mass of the newly discovered particles. When the effects of quantum mechanics is taken into account, the mass of the Higgs boson should be incredibly high...perhaps upwards of a quadrillion times higher than what was observed. In this video, Fermilab's Dr. Don Lincoln explains how it is that the theory predicts that the mass is so large and gives at least one possible theoretical idea that might solve the problem. Whether the proposed idea is the answer or not, this question must be answered by experiments at the LHC or today's entire theoretical paradigm could be in jeopardy.

  11. Big Mysteries: The Higgs Mass

    ScienceCinema (OSTI)

    Lincoln, Don

    2014-06-03

    With the discovery of what looks to be the Higgs boson, LHC researchers are turning their attention to the next big question, which is the predicted mass of the newly discovered particles. When the effects of quantum mechanics is taken into account, the mass of the Higgs boson should be incredibly high...perhaps upwards of a quadrillion times higher than what was observed. In this video, Fermilab's Dr. Don Lincoln explains how it is that the theory predicts that the mass is so large and gives at least one possible theoretical idea that might solve the problem. Whether the proposed idea is the answer or not, this question must be answered by experiments at the LHC or today's entire theoretical paradigm could be in jeopardy.

  12. Satellite measurements of the clear-sky greenhouse effect from

    E-Print Network [OSTI]

    LETTERS Satellite measurements of the clear-sky greenhouse effect from tropospheric ozone HELEN M of longer-lived greenhouse gases such as carbon dioxide. Here, we analyse spectrally resolved measurements of 0.48±0.14 W m-2 between 45 S and 45 N. This estimate of the clear-sky greenhouse effect from

  13. Definitions of Clear-sky Fluxes and Implications 

    E-Print Network [OSTI]

    Verma, Abhishek

    2012-02-14

    .2 Clear-sky Fluxes : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 3 2. SATELLITE-INFERRED CLEAR-SKY FLUXES : : : : : : : : : : : : : 5 2.1 CERES Instrument : : : : : : : : : : : : : : : : : : : : : : : : : : : : 5 2.1.1 CERES... observation systems such as satellite system, radiosonde, solar panels etc. and simulation results from model generated scenarios including climate-model, reanalysis with assimilation system, radiative transfer models, to name a few, have helped...

  14. The Night Sky A Super Full Moon & Meteor Shower

    E-Print Network [OSTI]

    Luttermoser, Donald G.

    and the morning of August 13. The moon phase is a thin crescent that night leaving a very dark sky, but can appear anywhere in the sky. The new moon in August will occur on the 14th , thus aiding with dark for our Astronomy open houses can be found on the web at http

  15. Monitoring the Sky with the Prototype All-Sky Imager on the LWA1

    E-Print Network [OSTI]

    Obenberger, K S; Hartman, J M; Clarke, T E; Dowell, J; Dubois, A; Dubois, D; Henning, P A; Lazio, J; Michalak, S; Schinzel, F K

    2015-01-01

    We present a description of the Prototype All-Sky Imager (PASI), a backend correlator and imager of the first station of the Long Wavelength Array (LWA1). PASI cross-correlates a live stream of 260 dual-polarization dipole antennas of the LWA1, creates all-sky images, and uploads them to the LWA-TV website in near real-time. PASI has recorded over 13,000 hours of all-sky images at frequencies between 10 and 88 MHz creating opportunities for new research and discoveries. We also report rate density and pulse energy density limits on transients at 38, 52, and 74 MHz, for pulse widths of 5 s. We limit transients at those frequencies with pulse energy densities of $>2.7\\times 10^{-23}$, $>1.1\\times 10^{-23}$, and $>2.8\\times 10^{-23}$ J m$^{-2}$ Hz$^{-1}$ to have rate densities $<1.2\\times10^{-4}$, $<5.6\\times10^{-4}$, and $<7.2\\times10^{-4}$ yr$^{-1}$ deg$^{-2}$

  16. Big Data ja vakuutustoiminta Oulun yliopisto 28.1.2014

    E-Print Network [OSTI]

    Klemelä, Jussi

    Big Data ja vakuutustoiminta Oulun yliopisto 28.1.2014 Lasse Koskinen Model IT & Aalto University; Finland 1 #12;Agenda · Model IT · The age of Big Data · Not generally accepted definition · Important #12;Big Data Creates Value · The use of big data offers tremendous potential for creating value · Mc

  17. Big Data Applications in Cloud and Cyber Security

    E-Print Network [OSTI]

    Sandhu, Ravi

    Big Data Applications in Cloud and Cyber Security Prof. Ravi Sandhu Executive Director and Endowed Professor UTSA COB Symposium on Big Data, Big Challenges March 17, 2015 ravi.sandhu@utsa.edu www Security 1 #12;© Ravi Sandhu 2 World-Leading Research with Real-World Impact! Big Data Volume Variety

  18. The SIKS/BiGGrid Big Data Tutorial Djoerd Hiemstra

    E-Print Network [OSTI]

    Hiemstra, Djoerd

    The SIKS/BiGGrid Big Data Tutorial Djoerd Hiemstra U. Twente, The Netherlands d BiG Grid organized a new two- day tutorial on Big Data at the University of Twente on 30 November terabytes of data on large clusters, and discusses several core computer science top- ics adapted for big

  19. Statistical Inference, Learning and Models for Big Data

    E-Print Network [OSTI]

    Knight, Keith

    Statistical Inference, Learning and Models for Big Data Steering Committee Yoshua Bengio Hugh: Strategies and Principles Feb 23 - 27 · Big Data in Health Policy Mar 23 - 27 · Big Data for Social Policy Jordan, UC Berkeley, April 7, 8 and 9 · Andrew Lo, MIT March 25 ­ law, finance and big data · Graduate

  20. Big Data As Complementary Audit Kyunghee Yoon, Rutgers Business School

    E-Print Network [OSTI]

    Big Data As Complementary Audit Evidence Kyunghee Yoon, Rutgers Business School Lucas Hoogduin variety of information - High litigation risks - Advanced technologies · Big data and big data analytics (SAS No. 106) #12;Sufficiency consideration 1. Relevant external big data could be a complement

  1. Doctoral Defense "Big Data for Urban Sustainability:Integrating Human Mobility

    E-Print Network [OSTI]

    Eustice, Ryan

    Doctoral Defense "Big Data for Urban Sustainability:Integrating Human Mobility Dynamics data, neglecting the individual heterogeneity. Individual travel patterns affect charging behavior to be taken into account in environmental assessments. Using vehicle trajectory data of over 10,000 taxis

  2. Surface Urban Heat Island Across 419 Global Big Cities Shushi Peng,

    E-Print Network [OSTI]

    Myneni, Ranga B.

    , and we assess several potential biophysical and socio-economic driving factors. Across the big cities, we this has been disputed by several studies.6 On the other side, urban heat island also has negative impacts on the quality of the city life from the aspects of energy consumption, air and water quality, and human health

  3. Quality of Big Data in Healthcare

    SciTech Connect (OSTI)

    Sukumar, Sreenivas R; Ramachandran, Natarajan; Ferrell, Regina Kay

    2015-01-01

    The current trend in Big Data Analytics and in particular Health information technology is towards building sophisticated models, methods and tools for business, operational and clinical intelligence, but the critical issue of data quality required for these models is not getting the attention it deserves. The objective of the paper is to highlight the issues of data quality in the context of Big Data Healthcare Analytics.

  4. Global horizontal irradiance clear sky models : implementation and analysis.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Hansen, Clifford W.; Reno, Matthew J.

    2012-03-01

    Clear sky models estimate the terrestrial solar radiation under a cloudless sky as a function of the solar elevation angle, site altitude, aerosol concentration, water vapor, and various atmospheric conditions. This report provides an overview of a number of global horizontal irradiance (GHI) clear sky models from very simple to complex. Validation of clear-sky models requires comparison of model results to measured irradiance during clear-sky periods. To facilitate validation, we present a new algorithm for automatically identifying clear-sky periods in a time series of GHI measurements. We evaluate the performance of selected clear-sky models using measured data from 30 different sites, totaling about 300 site-years of data. We analyze the variation of these errors across time and location. In terms of error averaged over all locations and times, we found that complex models that correctly account for all the atmospheric parameters are slightly more accurate than other models, but, primarily at low elevations, comparable accuracy can be obtained from some simpler models. However, simpler models often exhibit errors that vary with time of day and season, whereas the errors for complex models vary less over time.

  5. SNAP sky background at the north ecliptic pole

    SciTech Connect (OSTI)

    Aldering, Greg

    2002-07-01

    I summarize the extant direct and indirect data on the sky background SNAP will see at the North Ecliptic Pole over the wavelength range 0.4 < {lambda} < 1.7 {micro}m. At the spatial resolution of SNAP the sky background due to stars and galaxies is resolved, so the only source considered is zodiacal light. Several models are explored to provide interpolation in wavelength between the broadband data from HST and COBE observations. I believe the input data are now established well enough that the accuracy of the sky background presented here is sufficient for SNAP simulations, and that it will stand up to scrutiny by reviewers.

  6. The variable sky of deep synoptic surveys

    SciTech Connect (OSTI)

    Ridgway, Stephen T.; Matheson, Thomas; Mighell, Kenneth J.; Olsen, Knut A. [National Optical Astronomy Observatory, Tucson, AZ 85725 (United States); Howell, Steve B., E-mail: ridgway@noao.edu [NASA Ames Research Center, P.O. Box 1, M/S 244-30, Moffett Field, CA 94035 (United States)

    2014-11-20

    The discovery of variable and transient sources is an essential product of synoptic surveys. The alert stream will require filtering for personalized criteria—a process managed by a functionality commonly described as a Broker. In order to understand quantitatively the magnitude of the alert generation and Broker tasks, we have undertaken an analysis of the most numerous types of variable targets in the sky—Galactic stars, quasi-stellar objects (QSOs), active galactic nuclei (AGNs), and asteroids. It is found that the Large Synoptic Survey Telescope (LSST) will be capable of discovering ?10{sup 5} high latitude (|b| > 20°) variable stars per night at the beginning of the survey. (The corresponding number for |b| < 20° is orders of magnitude larger, but subject to caveats concerning extinction and crowding.) However, the number of new discoveries may well drop below 100 per night within less than one year. The same analysis applied to GAIA clarifies the complementarity of the GAIA and LSST surveys. Discovery of AGNs and QSOs are each predicted to begin at ?3000 per night and decrease by 50 times over four years. Supernovae are expected at ?1100 per night, and after several survey years will dominate the new variable discovery rate. LSST asteroid discoveries will start at >10{sup 5} per night, and if orbital determination has a 50% success rate per epoch, they will drop below 1000 per night within two years.

  7. Apple Tree, NH Big Tree for May By Anne Krantz, NH Big Tree Team,

    E-Print Network [OSTI]

    New Hampshire, University of

    Apple Tree, NH Big Tree for May By Anne Krantz, NH Big Tree Team, UNH Cooperative Extension The explosion of apple blossoms in May transforms the most gnarled old tree into a delicate cloud of beauty (1817-1862) in his essay "The Wild Apple Tree," described the blossoms perfectly: `The flowers

  8. Testing Vpin on Big Data Response to Reflecting on the Vpin Dispute

    E-Print Network [OSTI]

    Wu, Kesheng

    2014-01-01

    Wu,  K. ,  et  al.   A  Big  Data  Approach  to  Analyzing  Testing VPIN on Big Data -- Response to “Reflecting on theTesting  VPIN  on  Big  Data    –  Response  to  “

  9. Solution Path Clustering with Minimax Concave Penalty and Its Applications to Noisy Big Data

    E-Print Network [OSTI]

    Marchetti, Yuliya

    2014-01-01

    Path Clustering of Noisy Big Data . . . . . . . . . . . .Y. Wah, and T. Herawan. “Big Data Clustering: A Review. ” InPath Clustering of Noisy Big Data Introduction In this

  10. Big Data Analaysis and Visualization: What Do LINACS and Tropical Storms Have In Common?

    E-Print Network [OSTI]

    Bethel, E. Wes

    2013-01-01

    Big Data Analaysis and Visualization: What Do LINACS andof California. BIG DATA ANALYSIS AND VISUALIZATION: WHAT DOproblems. INTRODUCTION Big data and its attendant

  11. South African night sky brightness during high aerosol epochs

    E-Print Network [OSTI]

    Winkler, Hartmut; Marang, Fred

    2014-01-01

    Sky conditions in the remote, dry north-western interior of South Africa are now the subject of considerable interest in view of the imminent construction of numerous solar power plants in this area. Furthermore, the part of this region in which the core of the SKA is to be located (which includes SALT) has been declared an Astronomical Advantage Zone, for which sky brightness monitoring will now be mandatory. In this project we seek to characterise the sky brightness profile under a variety of atmospheric conditions. Key factors are of course the lunar phase and altitude, but in addition the sky brightness is also significantly affected by the atmospheric aerosol loading, as that influences light beam scattering. In this paper we chose to investigate the sky characteristics soon after the Mount Pinatubo volcanic eruption in 1991, which resulted in huge ash masses reaching the stratosphere (where they affected solar irradiance for several years). We re-reduced photometric sky measurements from the South Afric...

  12. Midwest Big Data Hub Edward Seidel

    E-Print Network [OSTI]

    -enabled Transformation of Science Astronomy 1500- 2000: · Single scientist looks through telescope · Record KB of data in notebook · Require reproducibility Sloan Digital Sky Survey 2000+ · Record data for decade (40TB) · Serve of chemists and materials scientists developing a "materials genome" · Industry access can speed product

  13. Evaluation of Clear Sky Models for Satellite-Based Irradiance Estimates

    SciTech Connect (OSTI)

    Sengupta, M.; Gotseff, P.

    2013-12-01

    This report describes an intercomparison of three popular broadband clear sky solar irradiance model results with measured data, as well as satellite-based model clear sky results compared to measured clear sky data. The authors conclude that one of the popular clear sky models (the Bird clear sky model developed by Richard Bird and Roland Hulstrom) could serve as a more accurate replacement for current satellite-model clear sky estimations. Additionally, the analysis of the model results with respect to model input parameters indicates that rather than climatological, annual, or monthly mean input data, higher-time-resolution input parameters improve the general clear sky model performance.

  14. Big Brothers needed in Northern New Mexico

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERTWaterSharingBeyondBang or BigBig

  15. The Politics of European Collaboration in Big Olof Hallonsten

    E-Print Network [OSTI]

    Bongartz, Klaus

    politics. Keywords Big Science · CERN · Common market · European Atomic Energy Community (EURATOMThe Politics of European Collaboration in Big Science Olof Hallonsten Abstract Intergovernmental outside of the political integration work of the European Community/Union, which has resulted

  16. Solar Goes Big: Launching the California Valley Solar Ranch ...

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

    Solar Goes Big: Launching the California Valley Solar Ranch Solar Goes Big: Launching the California Valley Solar Ranch October 31, 2013 - 4:14pm Addthis The California Valley...

  17. At Vogtle, Big Results with Nuclear Power | Department of Energy

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

    At Vogtle, Big Results with Nuclear Power At Vogtle, Big Results with Nuclear Power February 20, 2014 - 1:29pm Addthis Construction work inside the Vogtle 3 and 4 module assembly...

  18. BigNeuron: Unlocking the Secrets of the Human Brain

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

    BigNeuron: Unlocking the Secrets of the Human Brain BigNeuron: Unlocking the Secrets of the Human Brain Berkeley Researchers and Supercomputers to Help Create a Standard 3D Neuron...

  19. Distributed Wind Market Report: Small Turbines Lead to Big Growth...

    Energy Savers [EERE]

    Distributed Wind Market Report: Small Turbines Lead to Big Growth in Exports Distributed Wind Market Report: Small Turbines Lead to Big Growth in Exports August 18, 2014 - 12:13pm...

  20. Photon Speedway Puts Big Data In the Fast Lane

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

    Photon Speedway Puts Big Data In the Fast Lane Photon Speedway Puts Big Data In the Fast Lane Scientists from Berkeley Lab and SLAC are using NERSC and ESnet to achieve...

  1. PERSPECTIVES Deep Earthquakes: A Fault Too Big?

    E-Print Network [OSTI]

    Stein, Seth

    PERSPECTIVES Deep Earthquakes: A Fault Too Big? Seth Stein Because deep Earth processes are inacces. Recent results for the mys- terious deep earthquakes that occur to depths greater than 600 km is that large deep earthquakes (1-3) seem to have occurred on faults larger than ex- pected from the competing

  2. Space Time Quantization and the Big Bang

    E-Print Network [OSTI]

    B. G. Sidharth

    1998-06-21

    A recent cosmological model is recapitulated which deduces the correct mass, radius and age of the universe as also the Hubble constant and other well known apparently coincidental relations. It also predicts an ever expanding accelerating universe as is confirmed by latest supernovae observations. Finally the Big Bang model is recovered as a suitable limiting case.

  3. How to think big The 20th

    E-Print Network [OSTI]

    Lonardi, Stefano

    ,200 to .033 cents)* * Source: John McCallum, PC Direct #12;If only gas mileage improved as much as disk pricesHow to think big Udi Manber Google #12;· The 20th century was about taming nature (and winning wars performance has gone up by a factor of 3500 (1 MHz ­ 3.5GHz)* · Memory prices per megabyte are down

  4. ICME & MGI Big Area Additive Manufacturing

    E-Print Network [OSTI]

    ICME & MGI · Big Area Additive Manufacturing · Neutron Characterization for AM · Materials problems in additive manu- facturing (AM). Additive manufacturing, or three-dimensional (3-D) printing of the world's most advanced neu- tron facilities, the HFIR and SNS, to characterize additive manufactured

  5. No "big trips" for the universe

    E-Print Network [OSTI]

    Valerio Faraoni

    2007-02-27

    It has been claimed in several papers that a phantom energy-dominated universe can undergo a ``big trip'', i.e., tunneling through a wormhole that grows faster than the cosmic substratum due to the accretion of phantom energy, and will reappear on the other mouth of the wormhole. We show that such claims are unfounded and contradict the Einstein equations.

  6. Data Mining with Big Data Xindong Wu1,2

    E-Print Network [OSTI]

    Ding, Wei

    1 Data Mining with Big Data Xindong Wu1,2 , Xingquan Zhu3 , Gong-Qing Wu2 , Wei Ding4 1 School Boston, USA Abstract: Big Data concerns large-volume, complex, growing data sets with multiple, Big Data is now rapidly expanding in all science and engineering domains, including physical

  7. Mapping collective behavior in the big-data era

    E-Print Network [OSTI]

    Bentley, Alex

    Mapping collective behavior in the big-data era R. Alexander Bentley Department of Archaeology. Similarly, behavioral scientists now have access to "big data" sets ­ those from Twitter and Facebook & Reinsel 2011). These digital shadows are the subjects of "big data" research, which optimists see

  8. Statistical Inference, Learning and Models for Big Data

    E-Print Network [OSTI]

    Reid, Nancy

    Statistical Inference, Learning and Models for Big Data Nancy Reid University of Toronto P · Optimization and Matrix Methods Feb 9 ­ 11 · Visualization: Strategies and Principles Feb 23 ­ 27 · Big Data in Health Policy Mar 23 ­ 27 · Big Data for Social Policy Apr 13 ­ 16 #12;And more Distinguished Lecture

  9. Toward Effective Big Data Analysis in Continuous Auditing

    E-Print Network [OSTI]

    Toward Effective Big Data Analysis in Continuous Auditing By Juan Zhang, Xiongsheng Yang, and Deniz Appelbaum #12;Towards Effective Big Data Analysis Introduction New sources: emails, phone calls, click stream traffic, social media, news media, sensor recordings and videos, and RFID tags 4 V's of Big Data

  10. Cost aware real time big data processing in Cloud Environments

    E-Print Network [OSTI]

    Buyya, Rajkumar

    Cost aware real time big data processing in Cloud Environments By Cristian Montero Under and volatility of Big-data application workloads, it is difficult to decide when and how to scale up and down Environments . . . . . . . . . . . . . . . . . . . 9 2.2 Big Data

  11. When Recommenders Met Big Data An Architectural Proposal and Evaluation

    E-Print Network [OSTI]

    Coruña, Universidade da

    When Recommenders Met Big Data An Architectural Proposal and Evaluation Daniel Valcarce, Javier factor in the design of any system working with big data. In particular, it has been recognised as a main capable of making per- sonalised recommendations using collaborative filtering in a big data en- vironment

  12. Big Data: A Survey Min Chen Shiwen Mao Yunhao Liu

    E-Print Network [OSTI]

    Chen, Min

    Big Data: A Survey Min Chen · Shiwen Mao · Yunhao Liu © Springer Science+Business Media New York 2014 Abstract In this paper, we review the background and state-of-the-art of big data. We first introduce the general background of big data and review related technologies, such as could computing

  13. Behavioral Implications of Big Data's Impact on Audit Judgment

    E-Print Network [OSTI]

    Behavioral Implications of Big Data's Impact on Audit Judgment and Decision Making and Future state of Big Data with regards to the audit environment · Information processing weaknesses and limitations that can impede the effective use of Big Data in an audit environment, with a focus on

  14. Implementing 'Big Open Data' in government through Open Collaboration

    E-Print Network [OSTI]

    Baclawski, Kenneth B.

    1 Implementing 'Big Open Data' in government through Open Collaboration - case examples@mitre.org> Ken Baclawski Presented at the Joint DATA.GOV - ONTOLOG "Big Open Data" Session 17-May-2012 ( v1.02 ) #12;2ppy/lo/md/kb/Leveraging-OOR-in BigOpenData_May-2012 Presentation Outline

  15. Random Forests and Big Data Robin Genuer 1

    E-Print Network [OSTI]

    Villa-vialaneix, Nathalie

    Random Forests and Big Data Robin Genuer 1 , Jean-Michel Poggi 2 , Christine Tuleau-Malot3 Castanet Tolosan cedex, nathalie.villa@toulouse.inra.fr R´esum´e. Le Big Data est un des grands d´efis que. Le Big Data implique toujours le caract`ere massif des donn´ees mais comprend bien souvent aussi des

  16. Big Data, the Crowd, and Me Cathy Marshall

    E-Print Network [OSTI]

    Marshall, Cathy

    Big Data, the Crowd, and Me Cathy Marshall Microsoft Research, Silicon Valley Like many of you, I've been swept up by the romance of Big Data. But instead of stepping back and taking the long view, in this account I plan to get enmired in the details and tell you a story about my own Big Data dalliance

  17. Exploring big data opportunities for Online Customer Segmentation

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Exploring big data opportunities for Online Customer Segmentation Georgia Fotaki Marco Spruit Sjaak University P.O. Box 80.089 3508 TB Utrecht The Netherlands #12;iii Exploring big data opportunities and analyzing the huge amount of data; and this is where the concept of "Big Data" can play an essential role

  18. Orchestrating Science DMZs for Big Data Acceleration: Challenges and Approaches

    E-Print Network [OSTI]

    Calyam, Prasad

    Orchestrating Science DMZs for Big Data Acceleration: Challenges and Approaches Saptarshi Debroy: {debroysa, calyamp, dickinsonmg}@missouri.edu. I. INTRODUCTION A. What is Science Big Data? In recent years computing centers, experiments and simulations produce peta-bytes of data viz., Big Data, that is likely

  19. One Statistician's Perspectives on Statistics and "Big Data" Analytics

    E-Print Network [OSTI]

    Vardeman, Stephen B.

    One Statistician's Perspectives on Statistics and "Big Data" Analytics Some (Ultimately 2014 Vardeman (Iowa State University) Perspectives on "Big Data" Analytics July 2014 1 / 16 #12;My/modern-multivariate-statistical-learning/ Vardeman (Iowa State University) Perspectives on "Big Data" Analytics July 2014 2 / 16 #12;Some (Indirect

  20. The Foundation of Big Data: Experiments, Formulation, and Applications

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    The Foundation of Big Data: Experiments, Formulation, and Applications Robert C. Qiu 1 1 . In the age of Big Data, the size of n is large, but FINITE! The large but finite n asks for a new paradigm for big data analysis. Size is the only thing that matters. It is natural to model massive datasets

  1. Rethinking Abstractions for Big Data: Why, Where, How, and What

    E-Print Network [OSTI]

    Kirby, Mike

    Rethinking Abstractions for Big Data: Why, Where, How, and What Mary Hall, Robert M. Kirby, Feifei Venkatasubramanian, University of Utah June 17, 2013 Big data refers to large and complex data sets that, under, analytical tools and human understanding [7]. Numerous lessons on the scalability of big data can already

  2. IMPLICATIONS OF NON-MAXWELLIAN DISTRIBUTIONS ON BIG BANG NUCLEOSYNTHESIS

    E-Print Network [OSTI]

    Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

    #12;IMPLICATIONS OF NON-MAXWELLIAN DISTRIBUTIONS ON BIG BANG NUCLEOSYNTHESIS A Thesis by JOHN FUQUA ON BIG BANG NUCLEOSYNTHESIS A Thesis by JOHN FUQUA Approved by: Advisor: Carlos Bertulani Committee-MAXWELLIAN DISTRIBUTIONS ON BIG BANG NUCLEOSYNTHESIS John Fuqua, MS Texas A&M University-Commerce, 2013 Advisor: Carlos

  3. Visualizing Distributed Data with BigWig and BigBed at UCSC (2010 JGI/ANL HPC Workshop)

    ScienceCinema (OSTI)

    Kent, Jim [UCSC

    2011-06-08

    Jim Kent from University of California, Santa Cruz presents on "Visualizing Distributed Data with BigWig and BigBed at UCSC" at the JGI/Argonne HPC Workshop on January 26, 2010.

  4. IOL: Africa's big plans for biofuel Africa's big plans for biofuel

    E-Print Network [OSTI]

    IOL: Africa's big plans for biofuel Africa's big plans for biofuel By Clare Byrne Visitors for the production of fuel crops. http://www.iol.co.za/general/news/newsprint.php?art_id=nw20071106135542969C112694&sf= (1 of 3) [11/11/2008 11:48:04 AM] http://www.iol.co.za/index.php?set_id=1&click_id=31&art

  5. The Palomar-Quest Digital Synoptic Sky Survey

    E-Print Network [OSTI]

    S. G. Djorgovski; C. Baltay; A. A. Mahabal; A. J. Drake; R. Williams; D. Rabinowitz; M. J. Graham; C. Donalek; E. Glikman; A. Bauer; R. Scalzo; N. Ellman; J. Jerke

    2008-01-21

    We describe briefly the Palomar-Quest (PQ) digital synoptic sky survey, including its parameters, data processing, status, and plans. Exploration of the time domain is now the central scientific and technological focus of the survey. To this end, we have developed a real-time pipeline for detection of transient sources. We describe some of the early results, and lessons learned which may be useful for other, similar projects, and time-domain astronomy in general. Finally, we discuss some issues and challenges posed by the real-time analysis and scientific exploitation of massive data streams from modern synoptic sky surveys.

  6. Dark Radiation Emerging After Big Bang Nucleosynthesis?

    E-Print Network [OSTI]

    Willy Fischler; Joel Meyers

    2011-02-28

    We show how recent data from observations of the cosmic microwave background may suggest the presence of additional radiation density which appeared after big bang nucleosynthesis. We propose a general scheme by which this radiation could be produced from the decay of non-relativistic matter, we place constraints on the properties of such matter, and we give specific examples of scenarios in which this general scheme may be realized.

  7. Dark radiation emerging after big bang nucleosynthesis?

    SciTech Connect (OSTI)

    Fischler, Willy; Meyers, Joel [Theory Group, Department of Physics, University of Texas, Austin, Texas 78712 (United States) and Texas Cosmology Center, University of Texas, Austin, Texas 78712 (United States)

    2011-03-15

    We show how recent data from observations of the cosmic microwave background may suggest the presence of additional radiation density which appeared after big bang nucleosynthesis. We propose a general scheme by which this radiation could be produced from the decay of nonrelativistic matter, we place constraints on the properties of such matter, and we give specific examples of scenarios in which this general scheme may be realized.

  8. Big Bang Nucleosynthesis and Primordial Black Holes

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun

    2010-06-28

    There are ongoing efforts in detecting Hawking radiation from primordial black holes (PBH) formed during the early universe. Here we put an upper limit on the PBH number density that could have been formed prior to the big bang nucleosynthesis era, based on the constraint that the PBH evaporation energy consisting of high energy radiation not affect the observed abundances' of elements, by disintegrating the nuclei.

  9. Tackling Big Data Together | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergyPlan | DepartmentXIII--SMART GRID SEC.Quadrennial Technology Review AboutBig

  10. Atmospheric ozone and colors of the Antarctic twilight sky

    E-Print Network [OSTI]

    Lee Jr., Raymond L.

    Atmospheric ozone and colors of the Antarctic twilight sky Raymond L. Lee, Jr.,1, * Wolfgang Meyer absorption at longer wavelengths by ozone's Chappuis bands. Because stratospheric ozone is greatly depleted correlations between ozone concentration and twilight colors. We also used a spectroradiometer at a midlatitude

  11. The Night Sky Earth Farthest from Sun in July

    E-Print Network [OSTI]

    Luttermoser, Donald G.

    The Night Sky Earth Farthest from Sun in July Although some may mistakenly believe it is the Earth's distance from the Sun that creates the seasons, we are actually farthest from the Sun in early July during summer. This year, the Earth reaches the point when it is most distant from the Sun, the aphelion of its

  12. Keeping Pace with Big Data Arizona State University Data Mining and Machine Learning Lab NSF Workshop on Big Data Analy6cs, Beijing 1

    E-Print Network [OSTI]

    Liu, Huan

    Keeping Pace with Big Data Arizona State University Data Mining and Machine Learning Lab NSF Workshop on Big Data Analy6cs, Beijing 1 Keeping Pace with Big Data - A Data Mining Perspec>ve Huan Liu Data

  13. Mountain Sheep in the Sky: Orion's Belt in Great Basin Mythology

    E-Print Network [OSTI]

    Fowler, Catherine S

    1995-01-01

    2, pp. 146-152 (1995). Mountain Sheep in the Sky: Orion'sNevada, Reno, NV 89557-0006. Mountain Sheep in the Sky is ain the great himt for the Mountain Sheep. Muhwinti, Leader (

  14. Far-IR Detection Limits I: Sky Confusion Due to Galactic Cirrus

    E-Print Network [OSTI]

    Woong-Seob Jeong; Hyung Mok Lee; Soojong Pak; Takao Nakagawa; Suk Minn Kwon; Chris P. Pearson; Glenn J. White

    2004-11-16

    Fluctuations in the brightness of the background radiation can lead to confusion with real point sources. Such background emission confusion will be important for infrared observations with relatively large beam sizes since the amount of fluctuation tends to increase with angular scale. In order to quantitively assess the effect of the background emission on the detection of point sources for current and future far-infrared observations by space-borne missions such as Spitzer, ASTRO-F, Herschel and SPICA, we have extended the Galactic emission map to higher angular resolution than the currently available data. Using this high resolution map, we estimate the sky confusion noise due to the emission from interstellar dust clouds or cirrus, based on fluctuation analysis and detailed photometry over realistically simulated images. We find that the confusion noise derived by simple fluctuation analysis agrees well with the result from realistic simulations. Although the sky confusion noise becomes dominant in long wavelength bands (> 100 um) with 60 - 90cm aperture missions, it is expected to be two order of magnitude smaller for the next generation space missions with larger aperture sizes such as Herschel and SPICA.

  15. An Initial Survey of White Dwarfs in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    H. C. Harris; J. Liebert; S. J. Kleinman; A. Nitta; S. F. Anderson; G. R. Knapp; J. Krzesinski; G. Schmidt; M. A. Strauss; D. Vanden Berk; D. Eisenstein; S. Hawley; B. Margon; J. A. Munn; N. M. Silvestri; A. Smith; P. Szkody; M. J. Collinge; C. C. Dahn; X. Fan; P. B. Hall; D. P. Schneider; J. Brinkmann; S. Burles; J. E. Gunn; G. S. Hennessy; R. Hindsley; Z. Ivezic; S. Kent; D. Q. Lamb; R. H. Lupton; R. C. Nichol; J. R. Pier; D. J. Schlegel; M. SubbaRao; A. Uomoto; B. Yanny; D. G. York

    2003-05-19

    An initial assessment is made of white dwarf and hot subdwarf stars observed in the Sloan Digital Sky Survey. In a small area of sky (190 square degrees), observed much like the full survey will be, 269 white dwarfs and 56 hot subdwarfs are identified spectroscopically where only 44 white dwarfs and 5 hot subdwarfs were known previously. Most are ordinary DA (hydrogen atmosphere) and DB (helium) types. In addition, in the full survey to date, a number of WDs have been found with uncommon spectral types. Among these are blue DQ stars displaying lines of atomic carbon; red DQ stars showing molecular bands of C_2 with a wide variety of strengths; DZ stars where Ca and occasionally Mg, Na, and/or Fe lines are detected; and magnetic WDs with a wide range of magnetic field strengths in DA, DB, DQ, and (probably) DZ spectral types. Photometry alone allows identification of stars hotter than 12000 K, and the density of these stars for 15

  16. AN EMPIRICAL METHOD FOR ESTIMATING THE THERMAL RADIANCE OF CLEAR SKIES

    E-Print Network [OSTI]

    Berdahl, Paul

    2012-01-01

    exposed to the sky. thermal Solar energy applications ofSolar Energy AN EMPIRICAL METHOD FOR ESTIMATING THE THERMAL

  17. Big, Deep, and Smart Data in Energy Materials Research: Atomic...

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

    Big, Deep, and Smart Data in Energy Materials Research: Atomic View on Materials Functionalities Event Sponsor: Computing, Environment, and Life Sciences Seminar Start Date: Sep 22...

  18. Data, Feedback, & Awareness Lead to Big Energy Savings | Department...

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

    Data, Feedback, & Awareness Lead to Big Energy Savings Fact sheet describes how the Navy Region Southwest Metro San Diego Area (NRSMSD) regional energy management team achieved...

  19. Can Small Go Big? Microfluidics Aid Quest for Artificial Photosynthesi...

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

    Can Small Go Big? Microfluidics Aid Quest for Artificial Photosynthesis Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding...

  20. Big Thicket National Preserve: Trails to the Future 

    E-Print Network [OSTI]

    Anderson, Luke; Allen, Chris; Elrod, Leah; Forbes, Melissa; Harbin, Hannah; Stromm, Diann

    2003-01-01

    stream_source_info Big_Thicket.pdf.txt stream_content_type text/plain stream_size 292407 Content-Encoding ISO-8859-1 stream_name Big_Thicket.pdf.txt Content-Type text/plain; charset=ISO-8859-1 Capstone Project... The George Bush School of Government and Public Service Texas A&M University Big Thicket National Preserve: Trails to the Future By Luke Anderson Chris Allen Leah Elrod Melissa Forbes Hannah Harbin Diann Strom Big Thicket National Preserve...

  1. LDRD symposium focuses on materials in extremes, big data, and...

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

    LDRD symposium focuses on materials in extremes, big data, and energy use impacts | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission...

  2. The Big Picture on Process Heating | Department of Energy

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

    Big Picture on Process Heating (January 2001) More Documents & Publications Metal and Glass Manufacturers Reduce Costs by Increasing Energy Efficiency in Process Heating Systems...

  3. A different Big Bang theory: Los Alamos unveils explosives detection...

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

    unveils explosives detection expertise A different Big Bang theory: Los Alamos unveils explosives detection expertise A team of scientists is now rolling out a collaborative...

  4. Managing Research Data in Big Science

    E-Print Network [OSTI]

    Norman Gray; Tobia Carozzi; Graham Woan

    2012-07-17

    The project which led to this report was funded by JISC in 2010--2011 as part of its 'Managing Research Data' programme, to examine the way in which Big Science data is managed, and produce any recommendations which may be appropriate. Big science data is different: it comes in large volumes, and it is shared and exploited in ways which may differ from other disciplines. This project has explored these differences using as a case-study Gravitational Wave data generated by the LSC, and has produced recommendations intended to be useful variously to JISC, the funding council (STFC) and the LSC community. In Sect. 1 we define what we mean by 'big science', describe the overall data culture there, laying stress on how it necessarily or contingently differs from other disciplines. In Sect. 2 we discuss the benefits of a formal data-preservation strategy, and the cases for open data and for well-preserved data that follow from that. This leads to our recommendations that, in essence, funders should adopt rather light-touch prescriptions regarding data preservation planning: normal data management practice, in the areas under study, corresponds to notably good practice in most other areas, so that the only change we suggest is to make this planning more formal, which makes it more easily auditable, and more amenable to constructive criticism. In Sect. 3 we briefly discuss the LIGO data management plan, and pull together whatever information is available on the estimation of digital preservation costs. The report is informed, throughout, by the OAIS reference model for an open archive.

  5. Analytics over Large-Scale Multidimensional Data: The Big Data Revolution!

    E-Print Network [OSTI]

    Song, Il-Yeol

    Analytics over Large-Scale Multidimensional Data: The Big Data Revolution! Alfredo Cuzzocrea ICAR in the field of analytics over big data, and we extend the discussion to analytics over big multidimensional, Management, Performance, Theory Keywords Analytics over Big Data, Analytics over Big Multidimensional Data

  6. The Next Big Thing - Eric Haseltine

    ScienceCinema (OSTI)

    Eric Haseltine

    2010-01-08

    Eric Haseltine, Haseltine Partners president and former chief of Walt Disney Imagineering, presented "The Next Big Thing," on Sept. 11, at the ORNL. He described the four "early warning signs" that a scientific breakthrough is imminent, and then suggested practical ways to turn these insights into breakthrough innovations. Haseltine is former director of research at the National Security Agency and associate director for science and technology for the director of National Intelligence, former executive vice president of Walt Disney Imagineering and director of engineering for Hughes Aircraft. He has 15 patents in optics, special effects and electronic media, and more than 100 publications in science and technical journals, the web and Discover Magazine.

  7. Big Data | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to:Greece:BajoBelpower Srl JumpOpenRenewableBielat SantoreBig

  8. Protein Dynamics Hit the Big Screen

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgramExemptionsProtein Dynamics Hit the Big Screen Protein Dynamics Hit

  9. Big Blue Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake, California:Big

  10. Effect of recirculation pump trip following anticipated transients without scram at Big Rock Point

    SciTech Connect (OSTI)

    Lyon, R.E.

    1981-08-01

    As requested by the US Atomic Energy Commission (now US Nuclear Regulatory Commission) in their Technical Report on Anticipated Transients Without Scram (ATWS) for Water-Cooled Reactors (WASH-1270), Consumers Power Company has submitted analyses which describe the response of their Big Rock Point (BRP) Plant to ATWS. The original analyses were submitted on Febuary 21, 1975, and results indicated that a recirculation pump trip (RPT) was effective in limiting the consequences of an ATWS. The response of BRP to an ATWS was reanalyzed as a part of the Big Rock Point Probabilistic Risk Assessment (PRA). Results of the analysis were submitted on February 26, 1981, with the conclusion that automatic RPT provides little safety improvement at BRP. Purpose of this report is to evaluate the submitted analyses to determine the effectiveness of Recirculation Pump Trip in ATWS recovery.

  11. Clear sky atmosphere at cm-wavelengths from climatology data

    E-Print Network [OSTI]

    Lew, Bartosz

    2015-01-01

    We utilise ground-based, balloon-born and satellite climatology data to reconstruct site and season-dependent vertical profiles of precipitable water vapour (PWV). We use these profiles to numerically solve radiative transfer through the atmosphere, and derive atmospheric brightness temperature ($T_{\\rm atm}$) and optical depth ($\\tau$) at the centimetre wavelengths. We validate the reconstruction by comparing the model column PWV, with photometric measurements of PWV, performed in the clear sky conditions towards the Sun. Based on the measurements, we devise a selection criteria to filter the climatology data to match the PWV levels to the expectations of the clear sky conditions. We apply the reconstruction to the location of the Polish 32-metre radio telescope, and characterise $T_{\\rm atm}$ and $\\tau$ year-round, at selected frequencies. We also derive the zenith distance dependence for these parameters, and discuss shortcomings of using planar, single-layer, and optically thin atmospheric model approxima...

  12. The First Data Release of the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    Abazajian, Kevork N; Agüeros, Marcel A; Allam, Sahar S; Anderson, Scott F; Annis, James; Bahcall, Neta A; Baldry, Ivan K; Bastian, Steven; Berlind, Andreas A; Bernardi, Mariangela; Blanton, Michael R; Blythe, Norman; Bochanski, John J; Boroski, William N; Brewington, Howard; Briggs, John W; Brinkmann, J; Brunner, Robert J; Budavari, Tamas; Carey, Larry N; Carr, Michael A; Castander, F J; Chiu, Kuenley; Collinge, Matthew J; Connolly, A J; Covey, Kevin R; Csabai, Istvan; Dodelson, Scott; Doi, Mamoru; Dong, Feng; Eisenstein, Daniel J; Evans, Michael L; Fan, Xiaohui; Feldman, Paul D; Finkbeiner, Douglas P; Friedman, Scott D; Frieman, Joshua A; Fukugita, Masataka; Gal, Roy R; Gillespie, Bruce; Glazebrook, Karl; Gonzalez, Carlos F; Gray, Jim; Grebel, Eva K; Grodnicki, Lauren; Gunn, James E; Gurbani, Vijay K; Hall, Patrick B; Hao, Lei; Harbeck, Daniel; Harris, Frederick H; Harris, Hugh C; Harvanek, Michael J; Hawley, Suzanne L; Heckman, Timothy M; Helmboldt, J F; Hendry, John S; Hennessy, Gregory S; Hindsley, Robert B; Hogg, David W; Holmgren, Donald; Holtzman, Jon A; Homer, Lee; Hui, Lam; Ichikawa, Shin-ichi; Ichikawa, Takashi; Inkmann, John P; Ivezic, Z; Jester, Sebastian; Johnston, David E; Jordan, Beatrice; Jordan, Wendell P; Jorgensen, Anders M; Juric, Mario; Kauffmann, Guinevere; Kent, Stephen M; Kleinman, S J; Knapp, G R; Kniazev, Alexei Yu; Kron, Richard G; Krzesinski, Jurek; Kunszt, Peter Z; Kuropatkin, Nickolai; Lamb, Donald Q; Lampeitl, Hubert; Laubscher, Bryan E; Lee, Brian C; Leger, R French; Li No Lan; Lidz, Adam; Lin, Huan; Loh Yeong Shang; Long, Daniel C; Loveday, Jon; Lupton, Robert H; Malik, Tanu; Margon, Bruce; McGehee, Peregrine M; McKay, Timothy A; Meiksin, Avery; Miknaitis, Gajus A; Moorthy, Bhasker K; Munn, Jeffrey A; Murphy, Tara; Nakajima, Reiko; Narayanan, Vijay K; Nash, Thomas; Neilsen, Erich; Newberg, Heidi Jo; Newman, Peter R; Nichol, Robert C; Nicinski, Tom; Nieto-Santisteban, Maria; Nitta, Atsuko; Odenkirchen, Michael; Okamura, Sadanori; Ostriker, Jeremiah P; Owen, Russell; Padmanabhan, Nikhil; Peoples, John; Pier, Jeffrey R; Pindor, Bartosz; Pope, Adrian C; Quinn, Thomas R; Rafikov, R R; Raymond, Sean N; Richards, Gordon T; Richmond, Michael W; Rix, Hans-Walter; Rockosi, Constance M; Schaye, Joop; Schlegel, David J; Schneider, D P; Schroeder, Joshua; Scranton, Ryan; Sekiguchi, Maki; Seljak, Uros; Sergey, Gary; Sesar, Branimir; Sheldon, E S; Shimasaku, Kazu; Siegmund, Walter A; Silvestri, Nicole M; Sinisgalli, Allan J; Sirko, Edwin; Smith, Allyn J; Smolcic, Vernesa; Snedden, Stephanie A; Stebbins, Albert; Steinhardt, Charles; Stinson, Gregory M; Stoughton, Chris; Strateva, Iskra V; Strauss, Michael A; SubbaRao, Mark; Szalay, Alexander S; Istvan Szapudi; Szkody, Paula; Tasca, Lidia; Tegmark, Max; Thakar, Aniruddha R; Tremonti, Christy A; Tucker, Douglas L; Uomoto, Alan; Vanden Berk, Daniel E; Vandenberg, Jan; Vogeley, Michael S; Voges, Wolfgang; Vogt, Nicole P; Walkowicz, Lucianne M; Weinberg, David H; West, Andrew A; White, Simon D M; Wilhite, Brian C; Willman, Beth; Xu Yong Hong; Yanny, Brian; Yarger, Jean; Yasuda, Naoki; Yip, Ching-Wa; Yocum, D R; York, Donald G; Zakamska, Nadia L; Zheng, Wei; Zibetti, Stefano; Zucker, Daniel B

    2003-01-01

    The Sloan Digital Sky Survey has validated and made publicly available its First Data Release. This consists of 2099 square degrees of five-band (u, g, r, i, z) imaging data, 186,240 spectra of galaxies, quasars, stars and calibrating blank sky patches selected over 1360 square degrees of this area, and tables of measured parameters from these data. The imaging data go to a depth of r ~ 22.6 and are photometrically and astrometrically calibrated to 2% rms and 100 milli-arcsec rms per coordinate, respectively. The spectra cover the range 3800--9200 A, with a resolution of 1800--2100. Further characteristics of the data are described, as are the data products themselves.

  13. Cosmology using the Parkes Multibeam Southern-Sky HI Survey

    E-Print Network [OSTI]

    P. A. Thomas

    1996-07-02

    I discuss the implications of the Parkes HI Multibeam Southern Sky Survey for cosmology. It will determine the local mass function of HI clouds, detecting several hundred per decade of mass. Each of these will come with a redshift and, for the more massive clouds, an estimate of the velocity width. This will provide an ideal database for peculiar motion studies and for measurements of biasing of galaxies relative to the underlying matter distribution.

  14. Candidate spectroscopic binaries in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    Pourbaix, D; Szkody, P; Ivezic, Z; Kleinman, S J; Long, D; Snedden, S A; Nitta, A; Harvanek, M; Krzesínski, J; Brewington, H J; Barentine, J C; Neilsen, E H; Brinkmann, J

    2005-01-01

    We have examined the radial velocity data for stars spectroscopically observed by the Sloan Digital Sky Survey (SDSS) more than once to investigate the incidence of spectroscopic binaries, and to evaluate the accuracy of the SDSS stellar radial velocities. We find agreement between the fraction of stars with significant velocity variations and the expected fraction of binary stars in the halo and thick disk populations. The observations produce a list of 675 possible new spectroscopic binary stars and orbits for eight of them.

  15. Candidate spectroscopic binaries in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    D. Pourbaix; G. R. Knapp; P. Szkody; Z. Ivezic; S. J. Kleinman; D. Long; S. A. Snedden; A. Nitta; M. Harvanek; J. Krzesinski; H. J. Brewington; J. C. Barentine; E. H. Neilsen; J. Brinkman

    2005-08-29

    We have examined the radial velocity data for stars spectroscopically observed by the Sloan Digital Sky Survey (SDSS) more than once to investigate the incidence of spectroscopic binaries, and to evaluate the accuracy of the SDSS stellar radial velocities. We find agreement between the fraction of stars with significant velocity variations and the expected fraction of binary stars in the halo and thick disk populations. The observations produce a list of 675 possible new spectroscopic binary stars and orbits for eight of them.

  16. Bright Skies Ahead for Moapa | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels ResearchofDerivative Classifiers Should KnowLandfillBright Skies

  17. Reliability of radio transients detected in the Nasu sky survey

    SciTech Connect (OSTI)

    Aoki, Takahiro; Daishido, Tsuneaki; Tanaka, Tai; Nakao, Ryota; Nomura, Naomi; Sugisawa, Kentaro; Niinuma, Kotaro; Takefuji, Kazuhiro; Kida, Sumiko

    2014-01-20

    This article reports on the reliability of 11 radio transients detected in the Nasu sky survey. We derived false detection rates and evaluated the statistical significance of each transient source. A single source, labeled WJN J1443+3439, was statistically significant at the 10{sup –5} significance level; the other 10 sources were insignificant. On the basis of this single detection, the sky surface density of live radio transients was estimated to be 2{sub ?1.9}{sup +9}×10{sup ?6} deg{sup ?2} at a flux density above 3 Jy and a frequency of 1.42 GHz. Since this result is comparable with other survey results and known transients, WJN J1443+3439 could not be excluded. The sky surface density supported a power-law distribution of source count versus flux density. For transient events, the power-law exponent was approximately –3/2. These results are expected to assist radio variable/transient surveys in next-generation facilities such as the Square Kilometre Array.

  18. The Big Data Rush Practically every major funding agency is kindling (or rekindling) the idea of`big data'as key to solving

    E-Print Network [OSTI]

    Crawford, T. Daniel

    The Big Data Rush Practically every major funding agency is kindling (or rekindling) the idea of`big.TheWhite House has recently launched a major initiative in this space (Google for"Big Data Across the Federal Government") highlighting the pervasiveness of big data programs across multiple government units. The

  19. Purdue University Faculty Openings in Big Data Purdue University has identified Big Data as a major thrust for inter-disciplinary research and education.

    E-Print Network [OSTI]

    Kihara, Daisuke

    Purdue University Faculty Openings in Big Data Purdue University has identified Big Data as a major shape Purdue's vision and research/education agenda in Big Data. Candidates for tenure and tenure, and participate in interdisciplinary Big-Data activities. Salary and benefits are highly competitive, and Purdue

  20. 6 Scalable End-user Access to Big Data 1 6.1 The Data Access Problem of Big Data . . . . . . . . . . . . . . . . . . . . . 2

    E-Print Network [OSTI]

    Calvanese, Diego

    Contents 6 Scalable End-user Access to Big Data 1 6.1 The Data Access Problem of Big Data;Chapter 6 Scalable End-user Access to Big Data Martin Giese,1 Diego Calvanese,2 Peter Haase,3 Ian Horrocks-users typically face when dealing with Big Data: · They need to pose ad hoc queries to a collection of data

  1. Big SaaS: The Next Step Beyond Big Data Hong Zhu, Ian Bayley, M. Younas, David Lightfoot, Basel Yousef and Dongmei Liu

    E-Print Network [OSTI]

    Zhu, Hong

    Big SaaS: The Next Step Beyond Big Data Hong Zhu, Ian Bayley, M. Younas, David Lightfoot, Basel will integrate with the Internet of Things, Mobile Computing, Big Data, Wireless Sensor Networks, and many other and require Big Data but provide great value to the customer. With these benefits come great societal risks

  2. Review: Eco-Business: A Big-Brand Takeover of Sustainability

    E-Print Network [OSTI]

    Laberge, Yves

    2015-01-01

    Big-Brand Takeover of Sustainability By Peter Dauvergne andA Big-Brand Takeover of Sustainability. Cambridge, MA: MITA Big-Brand Takeover of Sustainability is a very important

  3. Bid & Open Data position paper 1 / 47 Big and Open data

    E-Print Network [OSTI]

    Morik, Katharina

    Bid & Open Data position paper 1 / 47 Big and Open data Position Paper #12;Bid & Open Data position ..................................................................................................................5 II- Challenges with BIG/OPEN DATA ..............................................................................6 III- Technical approaches to Big Data

  4. Recommendations for Technologies for Microgrids on the Big Island

    E-Print Network [OSTI]

    Recommendations for Technologies for Microgrids on the Big Island Prepared for U.S. Department Island microgrids By Sentech, Inc. Bethesda, Maryland And University of Hawaii Hawaii Natural Energy for technologies to be used in future installation of Big Island microgrids Subtask 2.2 Deliverable #4 Prepared By

  5. SCIENCE IN HIGH DIMENSIONS: MULTIPARAMETER MODELS AND BIG DATA

    E-Print Network [OSTI]

    Sethna, James P.

    SCIENCE IN HIGH DIMENSIONS: MULTIPARAMETER MODELS AND BIG DATA A Dissertation Presented #12;SCIENCE IN HIGH DIMENSIONS: MULTIPARAMETER MODELS AND BIG DATA Ricky Chachra, Ph.D. Cornell parameters as well as a large-dimensional space of predicted data. These high-dimensional spaces of inputs

  6. "Developing the infrastructure and skills needed to handle big data."

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    "Developing the infrastructure and skills needed to handle big data." Don Brown W.S. Calcott Engineering University of Virginia Charlottesville, VA 434.982.2074 Big Data Research Group Our research group and uncertain behaviors. Methodological interests in these areas include data- mining, simulation

  7. Economic Impact of New Residents in Big Stone,

    E-Print Network [OSTI]

    Minnesota, University of

    Economic Impact of New Residents in Big Stone, Chippewa, Lac Qui Parle, Swift, and Yellow of Minnesota Extension Center for Community Vitality August 2011 1 ECONOMIC IMPACT ANALYSIS An Extension Community Economics Program #12; Economic Impact of New Residents: Big Stone, Chippewa, Lac Qui

  8. Synoptic Observing Programs at Big Bear Solar Observatory

    E-Print Network [OSTI]

    Synoptic Observing Programs at Big Bear Solar Observatory Haimin Wang and Philip R. Goode Big Bear and en- hance the comprehensive synoptic observing programs at BBSO, which include the following ve studies. Statistical studies on sunspot areas and magnetic shear are among the highlights of this research

  9. Rethinking Abstractions for Big Data: Why, Where, How, and What

    E-Print Network [OSTI]

    ) and applications communities. However, scale is only one aspect of current big data trends; fundamentally, current that is being addressed. The "big data challenge" has disrupted computer science by stressing to the very limits heterogeneous and specialized units, with resilience and energy becoming important considerations. The design

  10. Astrogenomics: big data, old problems, old solutions?

    E-Print Network [OSTI]

    Golden, Aaron; Greally, John M

    2013-01-01

    The ominous warnings of a `data deluge' in the life sciences from high-throughput DNA sequencing data are being supplanted by a second deluge, of cliches bemoaning our collective scientific fate unless we address the genomic data `tsunami'. It is imperative that we explore the many facets of the genome, not just sequence but also transcriptional and epigenetic variability, integrating these observations in order to attain a genuine understanding of how genes function, towards a goal of genomics-based personalized medicine. Determining any individual's genomic properties requires comparison to many others, sifting out the specific from the trends, requiring access to the many in order to yield information relevant to the few. This is the central big data challenge in genomics that still requires some sort of resolution. Is there a practical, feasible way of directly connecting the scientific community to this data universe? The best answer could be in the stars overhead.

  11. New Nuclear Physics for Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Richard N. Boyd; Carl R. Brune; George M. Fuller; Christel J. Smith

    2010-08-04

    We discuss nuclear reactions which could play a role in Big Bang Nucleosynthesis (BBN). Most of these reactions involve lithium and beryllium isotopes and the rates for some of these have not previously been included in BBN calculations. Few of these reactions are well studied in the laboratory. We also discuss novel effects in these reactions, including thermal population of nuclear target states, resonant enhancement, and non-thermal neutron reaction products. We perform sensitivity studies which show that even given considerable nuclear physics uncertainties, most of these nuclear reactions have minimal leverage on the standard BBN abundance yields of 6Li and 7Li. Although a few have the potential to alter the yields significantly, we argue that this is unlikely.

  12. DMP Planning for Big Science Projects

    E-Print Network [OSTI]

    Juan Bicarregui; Norman Gray; Rob Henderson; Roger Jones; Simon Lambert; Brian Matthews

    2012-08-18

    This report exists to provide high-level guidance for the strategic and engineering development of Data Management and Preservation plans for 'Big Science' data. Although the report's nominal audience is therefore rather narrow, we intend the document to be of use to other planners and data architects who wish to implement good practice in this area. For the purposes of this report, we presume that the reader is broadly persuaded (by external fiat if nothing else) of the need to preserve research data appropriately, and that they have both sophisticated technical support and the budget to support developments. The goal of the document is not to provide mechanically applicable recipes, but to allow the user to develop and lead a high-level plan which is appropriate to their organisation. Throughout, the report is informed where appropriate by the OAIS reference model.

  13. Confusion of Diffuse Objects in the X-ray Sky

    E-Print Network [OSTI]

    G. Mark Voit; August E. Evrard; Greg L. Bryan

    2000-12-08

    Most of the baryons in the present-day universe are thought to reside in intergalactic space at temperatures of 10^5-10^7 K. X-ray emission from these baryons contributes a modest (~10%) fraction of the ~ 1 keV background whose prominence within the large-scale cosmic web depends on the amount of non-gravitational energy injected into intergalactic space by supernovae and AGNs. Here we show that the virialized regions of groups and clusters cover over a third of the sky, creating a source-confusion problem that may hinder X-ray searches for individual intercluster filaments and contaminate observations of distant groups.

  14. American Clean Skies Foundation | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to: navigation, search Name:AmbataSkies Foundation Jump

  15. SkySails GmbH | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbH Jump to:Idaho-Utah |RenovablesSixthPowerSkySails

  16. Clear Skies Group Inc Holdings Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company) Jump to:New York:ClayBurnVitaCleanstar EnergyClearLake,Skies

  17. Sloan Digital Sky Survey II (SDSS-II) Supernova Data

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

    The Sloan Digital Sky Survey (SDSS) is a series of three interlocking imaging and spectroscopic surveys, carried out over an eight-year period with a dedicated 2.5m telescope located at Apache Point Observatory in Southern New Mexico. The SDSS Supernova Survey was one of those three components of SDSS and SDSS-II, a 3-year extension of the original SDSS that operated from July 2005 to July 2008. The Supernova Survey was a time-domain survey, involving repeat imaging of the same region of sky every other night, weather permitting. The primary scientific motivation was to detect and measure light curves for several hundred supernovae through repeat scans of the SDSS Southern equatorial stripe 82 (about 2.5? wide by ~120? long). Over the course of three 3-month campaigns SDSS-II SN discovered and measured multi-band lightcurves for ~500 spectroscopically confirmed Type Ia supernovae in the redshift range z=0.05-0.4. In addition, the project harvested a few hundred light curves for SNe Ia and discovered about 80 spectroscopically confirmed core-collapse supernovae (supernova types Ib/c and II).

  18. Ultraluminous infrared galaxies in the AKARI all-sky survey

    SciTech Connect (OSTI)

    Kilerci Eser, E., E-mail: ecekilerci@dark-cosmology.dk [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø (Denmark); Goto, T. [National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan (China); Doi, Y., E-mail: tomo@phys.nthu.edu.tw, E-mail: doi@ea.c.u-tokyo.ac.jp [The University of Tokyo, Komaba 3-8-1, Meguro, Tokyo 153-8902 (Japan)

    2014-12-10

    We present a new catalog of 118 ultraluminous infrared galaxies (ULIRGs) and one hyperluminous infrared galaxy (HLIRG) by cross-matching the AKARI all-sky survey with the Sloan Digital Sky Survey Data Release 10 (SDSS DR10) and the final data release of the Two-Degree Field Galaxy Redshift Survey. Forty of the ULIRGs and one HLIRG are new identifications. We find that ULIRGs are interacting pair galaxies or ongoing or postmergers. This is consistent with the widely accepted view: ULIRGs are major mergers of disk galaxies. We confirm the previously known positive trend between the active galactic nucleus fraction and infrared luminosity. We show that ULIRGs have a large offset from the main sequence up to z ? 1; their offset from the z ? 2 'main sequence' is relatively smaller. We find a result consistent with the previous studies showing that, compared to local star-forming SDSS galaxies of similar mass, local ULIRGs have lower oxygen abundances. We demonstrate for the first time that ULIRGs follow the fundamental metallicity relation (FMR). The scatter of ULIRGs around the FMR (0.09 dex-0.5 dex) is comparable to the scatter of z ? 2-3 galaxies. We provide the largest local (0.050

  19. Sloan Digital Sky Survey (SDSS): Data Release 1

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

    The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy.Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars. The SDSS used a dedicated 2.5-meter telescope at Apache Point Observatory, New Mexico, equipped with two powerful special-purpose instruments. SDSS data have supported fundamental work across an extraordinary range of astronomical disciplines, including the properties of galaxies, the evolution of quasars, the structure and stellar populations of the Milky Way, the dwarf galaxy companions of the Milky Way and M31, asteroids and other small bodies in the solar system, and the large scale structure and matter and energy contents of the universe. (Taken from home page of www.sdss.org). DR1 was the first major data release, providing images, imaging catalogs, spectra, and redshifts for download.

  20. Sloan Digital Sky Survey (SDSS): Data Release 5

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

    The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy.Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars. The SDSS used a dedicated 2.5-meter telescope at Apache Point Observatory, New Mexico, equipped with two powerful special-purpose instruments. SDSS data have supported fundamental work across an extraordinary range of astronomical disciplines, including the properties of galaxies, the evolution of quasars, the structure and stellar populations of the Milky Way, the dwarf galaxy companions of the Milky Way and M31, asteroids and other small bodies in the solar system, and the large scale structure and matter and energy contents of the universe. (Taken from home page of www.sdss.org). DR5 provides provides images, imaging catalogs, spectra, and redshifts for download.

  1. Sloan Digital Sky Survey (SDSS): Data Release 2

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

    The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy.Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars. The SDSS used a dedicated 2.5-meter telescope at Apache Point Observatory, New Mexico, equipped with two powerful special-purpose instruments. SDSS data have supported fundamental work across an extraordinary range of astronomical disciplines, including the properties of galaxies, the evolution of quasars, the structure and stellar populations of the Milky Way, the dwarf galaxy companions of the Milky Way and M31, asteroids and other small bodies in the solar system, and the large scale structure and matter and energy contents of the universe. (Taken from home page of www.sdss.org). DR2 provides provides images, imaging catalogs, spectra, and redshifts for download.

  2. Sloan Digital Sky Survey (SDSS): Data Release 4

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

    The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy.Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars. The SDSS used a dedicated 2.5-meter telescope at Apache Point Observatory, New Mexico, equipped with two powerful special-purpose instruments. SDSS data have supported fundamental work across an extraordinary range of astronomical disciplines, including the properties of galaxies, the evolution of quasars, the structure and stellar populations of the Milky Way, the dwarf galaxy companions of the Milky Way and M31, asteroids and other small bodies in the solar system, and the large scale structure and matter and energy contents of the universe. (Taken from home page of www.sdss.org). DR4 provides provides images, imaging catalogs, spectra, and redshifts for download.

  3. Sloan Digital Sky Survey (SDSS): Data Release 3

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

    The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy.Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars. The SDSS used a dedicated 2.5-meter telescope at Apache Point Observatory, New Mexico, equipped with two powerful special-purpose instruments. SDSS data have supported fundamental work across an extraordinary range of astronomical disciplines, including the properties of galaxies, the evolution of quasars, the structure and stellar populations of the Milky Way, the dwarf galaxy companions of the Milky Way and M31, asteroids and other small bodies in the solar system, and the large scale structure and matter and energy contents of the universe. (Taken from home page of www.sdss.org). DR3 provides provides images, imaging catalogs, spectra, and redshifts for download.

  4. Dusty WDs in the WISE all sky survey ? SDSS

    SciTech Connect (OSTI)

    Barber, Sara D.; Kilic, Mukremin; Gianninas, A. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks St., Norman, OK 73019 (United States); Brown, Warren R., E-mail: barber@nhn.ou.edu [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States)

    2014-05-10

    A recent cross-correlation between the Sloan Digital Sky Survey (SDSS) Data Release 7 White Dwarf Catalog with the Wide-Field Infrared Survey Explorer (WISE) all-sky photometry at 3.4, 4.6, 12, and 22 ?m performed by Debes et al. resulted in the discovery of 52 candidate dusty white dwarfs (WDs). However, the 6'' WISE beam allows for the possibility that many of the excesses exhibited by these WDs may be due to contamination from a nearby source. We present MMT+SAO Wide-Field InfraRed Camera J- and H-band imaging observations (0.''5-1.''5 point spread function) of 16 of these candidate dusty WDs and confirm that four have spectral energy distributions (SEDs) consistent with a dusty disk and are not accompanied by a nearby source contaminant. The remaining 12 WDs have contaminated WISE photometry and SEDs inconsistent with a dusty disk when the contaminating sources are not included in the photometry measurements. We find the frequency of disks around single WDs in the WISE ? SDSS sample to be 2.6%-4.1%. One of the four new dusty WDs has a mass of 1.04 M {sub ?} (progenitor mass 5.4 M {sub ?}) and its discovery offers the first confirmation that massive WDs (and their massive progenitor stars) host planetary systems.

  5. The Digital Sky Project: Prototyping Virtual Observatory Technologies

    E-Print Network [OSTI]

    R. J Brunner; T. Prince; J. Good; T. Handley; C. Lonsdale; S. G. Djorgovski

    2000-11-10

    Astronomy is entering a new era as multiple, large area, digital sky surveys are in production. The resulting datasets are truly remarkable in their own right; however, a revolutionary step arises in the aggregation of complimentary multi-wavelength surveys (i.e., the cross-identification of a billion sources). The federation of these large datasets is already underway, and is producing a major paradigm shift as Astronomy has suddenly become an immensely data-rich field. This new paradigm will enable quantitatively and qualitatively new science, from statistical studies of our Galaxy and the large-scale structure in the universe, to discoveries of rare, unusual, or even completely new types of astronomical objects and phenomena. Federating and then exploring these large datasets, however, is an extremely challenging task. The Digital Sky project was initiated with this task in mind and is working to develop the techniques and technologies necessary to solve the problems inherent in federating these large databases, as well as the mining of the resultant aggregate data.

  6. THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT Citation...

  7. Big Earth observation data analytics for land use and land cover change information

    E-Print Network [OSTI]

    Camara, Gilberto

    .......................................................................................... 3 2.2 CONTRIBUTION TO COMPUTER SCIENCE: BIG DATA IN GEOINFORMATICS

  8. Machine-Learning for Big Data: Sampling and Distributed On-Line Algorithms

    E-Print Network [OSTI]

    Combettes, Patrick Louis

    Machine-Learning for Big Data: Sampling and Distributed On-Line Algorithms Stéphan Clémençon LTCI variance control: rate faster than n 1/2 3 Convex risk minimization 4 Oracle inequalities #12;Big Data? Big phones, internet, embedded systems, social networks, . . .) · to store and manage Big (and Complex) Data

  9. IEEE Signal Processing Magazine, Special Issue: Big Data 1 Breaking the Curse of Dimensionality using

    E-Print Network [OSTI]

    IEEE Signal Processing Magazine, Special Issue: Big Data 1 Breaking the Curse of Dimensionality will discuss two promising tools to alleviate this curse when handling big data. First, instead of using full, Special Issue: Big Data 2 paper we show how to use this expertise to manage otherwise unmanageable big

  10. November2012 IU Bloomington Pascal Hitzler Semantic Web and Big Data

    E-Print Network [OSTI]

    Hitzler, Pascal

    November2012 ­ IU Bloomington ­ Pascal Hitzler Semantic Web and Big Data ­ Opportunities://www.pascal-hitzler.de/ #12;November2012 ­ IU Bloomington ­ Pascal Hitzler 2 Contents · Big Data, Linked Data, Semantic Web · The Big Data Added Value Pipeline · Fragments #12;November2012 ­ IU Bloomington ­ Pascal Hitzler 3 Big

  11. Big Data is Not About the Data! Institute for Quantitative Social Science

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Big Data is Not About the Data! Gary King1 Institute for Quantitative Social Science Harvard Value in Big Data: the Analytics 2/10 #12;The Value in Big Data: the Analytics · Data: 2/10 #12;The Value in Big Data: the Analytics · Data: · easy to come by; often a free byproduct of IT improvements 2

  12. Efficient and Customizable Data Partitioning Framework for Distributed Big RDF Data Processing in the Cloud

    E-Print Network [OSTI]

    Liu, Ling

    Efficient and Customizable Data Partitioning Framework for Distributed Big RDF Data Processing}@gatech.edu Abstract--Big data business can leverage and benefit from the Clouds, the most optimized in processing big data in the Clouds is how to effectively partition the big data to ensure efficient

  13. Closing the Loop on Big Data Rob Nowak www.ece.wisc.edu/~nowak

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    Closing the Loop on Big Data data Rob Nowak www.ece.wisc.edu/~nowak NSF Big Data Workshop March 21, 2013 #12;model space questions /queries "training data" BIG DATA: A Marriage of Machine and Man Human Judgements labeling, annotation, comparisons #12;model space questions /queries "training data" BIG DATA

  14. Big and Small Ideas: How to Lower Solar Financing Costs

    Broader source: Energy.gov [DOE]

    DOE hosted the "Big & Small Ideas: How to Lower Solar Financing Costs" breakout session during the SunShot Grand Challenge Summit and Technology Forum. This session explored a range of...

  15. The seasonality of aerosol properties in Big Bend National Park 

    E-Print Network [OSTI]

    Allen, Christopher Lee

    2007-04-25

    ), to characterize the seasonal variability of the Big Bend regions aerosol optical properties. Mass extinction efficiencies and relative humidity scattering enhancement factors were calculated for both externally and internally mixed aerosol populations for all size...

  16. Eliot Feibush leads new Princeton consortium to visualize Big...

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

    Eliot Feibush leads new Princeton consortium to visualize Big Data By John Greenwald April 22, 2015 Tweet Widget Google Plus One Share on Facebook Eliot Feibush (Photo by Elle...

  17. Scalable multi-access flash store for Big Data analytics

    E-Print Network [OSTI]

    Jun, Sang-Woo

    2014-01-01

    For many "Big Data" applications, the limiting factor in performance is often the transportation of large amount of data from hard disks to where it can be processed, i.e. DRAM. In this work we examine an architecture for ...

  18. EIS-0377: Big Stone II Power Plant and Transmission Project

    Broader source: Energy.gov [DOE]

    A systems study was carried out to identify the most appropriate locations to interconnect the proposed Big Stone II power plant to the regional utility grid. The study also identified transmission...

  19. Thoughts About Really Big Computers | Argonne Leadership Computing...

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

    Thoughts About Really Big Computers Event Sponsor: Leadership Facility Seminar Start Date: Jun 30 2015 - 10:30am BuildingRoom: Building 240Room 1407 Location: Argonne National...

  20. Taking Battery Technology from the Lab to the Big City

    Broader source: Energy.gov [DOE]

    A small New York City startup is hoping it has the next big solution in energy storage. A video documents what the company's breakthrough means for the future of grid-scale energy storage.

  1. LiBeB and Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Keith A. Olive; Brian D. Fields

    1999-02-20

    The dual origin of population II Li7, in both big bang nucleosynthesis and galactic cosmic-ray nucleosynthesis is discussed. It is argued that with additional Li6 data, stringent limits on the degree of Li7 depletion can be obtained. Li7 depletion is also constrained by the concordance of big bang predictions with observational determinations of light element abundances. Stringent limits can also be obtained for a fixed primordial D/H abundance.

  2. Big Bang or Big Bounce? Professor Paul J. Steinhardt Princeton University

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERTWaterSharingBeyondBang or Big

  3. GALEX DIFFUSE OBSERVATIONS OF THE SKY: THE DATA

    SciTech Connect (OSTI)

    Murthy, Jayant

    2014-08-01

    I present tabulations of the diffuse observations made by the GALEX spacecraft in two UV bands (FUV: 1539 Å and NUV: 2316 Å) from the (almost) final data release of the GALEX spacecraft (GR6/GR7). This data release includes all the FUV observations and the majority of the NUV observations. I discuss overall trends in the data but the primary purpose of this paper is to make the data available to the public. The data files described in this paper are hosted by the Mikulski Archive for Space Telescopes at the Space Telescope Science Insitute from whence they may be downloaded. For ease of use, I have also created maps of the diffuse radiation in both bands over the entire observed sky at 6' resolution.

  4. Cool covered sky-splitting spectrum-splitting FK

    SciTech Connect (OSTI)

    Mohedano, Rubén; Chaves, Julio; Falicoff, Waqidi; Hernandez, Maikel; Sorgato, Simone; Miñano, Juan C.; Benitez, Pablo; Buljan, Marina

    2014-09-26

    Placing a plane mirror between the primary lens and the receiver in a Fresnel Köhler (FK) concentrator gives birth to a quite different CPV system where all the high-tech components sit on a common plane, that of the primary lens panels. The idea enables not only a thinner device (a half of the original) but also a low cost 1-step manufacturing process for the optics, automatic alignment of primary and secondary lenses, and cell/wiring protection. The concept is also compatible with two different techniques to increase the module efficiency: spectrum splitting between a 3J and a BPC Silicon cell for better usage of Direct Normal Irradiance DNI, and sky splitting to harvest the energy of the diffuse radiation and higher energy production throughout the year. Simple calculations forecast the module would convert 45% of the DNI into electricity.

  5. Ancient peoples had the benefit of dark skies and experienced the full spectacle of the starry

    E-Print Network [OSTI]

    in the sky in winter and high in summer, as well as giving the daily alternation of day and night. Some area low in the southern sky up to a few centuries before the digging of the ditch and bank. Ancient

  6. Aldo Morselli, INFN Roma Tor Vergata 1 Search for Dark Matter in the Sky

    E-Print Network [OSTI]

    Morselli, Aldo

    Aldo Morselli, INFN Roma Tor Vergata 1 Search for Dark Matter in the Sky Aldo Morselli INFN Roma Tor Vergata 14 Jun 2012 Dark Side of the Univers 2012 Buzios 10-15 June #12;Aldo Morselli, INFN Roma press/web releases. #12;Aldo Morselli, INFN Roma Tor Vergata 10 The Fermi LAT gamma-ray sky 3-year all

  7. Quasars and the Big Blue Bump

    E-Print Network [OSTI]

    Zhaohui Shang; Michael S. Brotherton; Richard F. Green; Gerard A. Kriss; Jennifer Scott; Jessica Kim Quijano; Omer Blaes; Ivan Hubeny; John Hutchings; Mary Elizabeth Kaiser; Anuradha Koratkar; William Oegerle; Wei Zheng

    2004-09-29

    We investigate the ultraviolet-to-optical spectral energy distributions (SEDs) of 17 active galactic nuclei (AGNs) using quasi-simultaneous spectrophotometry spanning 900-9000 Angstrom (rest frame). We employ data from the Far Ultraviolet Spectroscopic Explorer (FUSE), the Hubble Space Telescope (HST), and the 2.1-meter telescope at Kitt Peak National Observatory (KPNO). Taking advantage of the short-wavelength coverage, we are able to study the so-called "big blue bump," the region where the energy output peaks, in detail. Most objects exhibit a spectral break around 1100 Angstrom. Although this result is formally associated with large uncertainty for some objects, there is strong evidence in the data that the far-ultraviolet spectral region is below the extrapolation of the near-ultraviolet-optical slope, indicating a spectral break around 1100 Angstrom. We compare the behavior of our sample to those of non-LTE thin-disk models covering a range in black-hole mass, Eddington ratio, disk inclination, and other parameters. The distribution of ultraviolet-optical spectral indices redward of the break, and far-ultraviolet indices shortward of the break, are in rough agreement with the models. However, we do not see a correlation between the far-ultraviolet spectral index and the black hole mass, as seen in some accretion disk models. We argue that the observed spectral break is intrinsic to AGNs, although intrinsic reddening as well as Comptonization can strongly affect the far-ultraviolet spectral index. We make our data available online in digital format.

  8. Proposed (to) EXIST: Hard X-ray Imaging All Sky Survey/Monitor

    E-Print Network [OSTI]

    J. E. Grindlay; T. A. Prince; F. Harrison; N. Gehrels; C. J. Hailey; B. Ramsey; M. C. Weisskopf; G. K. Skinner; P. Ubertini

    1998-01-01

    The hard x-ray (10-600 keV) sky is inherently time variable and yet has neither been surveyed nor monitored with a sensitive imaging telescope. The Energetic X-ray Imaging Survey Telescope (EXIST) is a mission concept, proposed for MIDEX, which would conduct the first imaging all-sky hard x-ray survey as well as provide a sensitive all sky monitor. With $\\sim 60%$ sky coverage each orbit, and full sky coverage each 50 days, hard x-ray studies of gamma-ray bursts, AGN, galactic transients, x-ray binaries and accretion-powered pulsars can be conducted over a wide range of timescales. We summarize the scientific objectives of EXIST for both the survey and monitoring objectives. We describe the mission concept and the instrumentation approach, which would incorporate a large area array of Cd-Zn-Te (CZT) detectors, as well as some of our ongoing development of CZT array detectors.

  9. Does Big Oil Collude and Price Gouge? Big Oil came back into the headlines in recent weeks with another spike in gasoline

    E-Print Network [OSTI]

    Ahmad, Sajjad

    with another spike in gasoline prices and their reported record profits. Some months ago, during the last gasoline price spike, Congress summoned the executives of the Big Oil companies to testify aboutDoes Big Oil Collude and Price Gouge? Big Oil came back into the headlines in recent weeks

  10. 1 Big Data and User Valuation: a Synergistic Combination Big data analytics is the problem of bringing the massive amounts of data produced today down to human

    E-Print Network [OSTI]

    1 Big Data and User Valuation: a Synergistic Combination Big data analytics is the problem will require fundamental advances in big data analytics. arXiv Topic Models User Models Predicted Preferences of bringing the massive amounts of data produced today down to human scale. This problem is faced

  11. Rethinking Abstractions for Big Data: Why, Where, How, and What

    E-Print Network [OSTI]

    Mary Hall; Robert M. Kirby; Feifei Li; Miriah Meyer; Valerio Pascucci; Jeff M. Phillips; Rob Ricci; Jacobus Van der Merwe; Suresh Venkatasubramanian

    2013-06-14

    Big data refers to large and complex data sets that, under existing approaches, exceed the capacity and capability of current compute platforms, systems software, analytical tools and human understanding. Numerous lessons on the scalability of big data can already be found in asymptotic analysis of algorithms and from the high-performance computing (HPC) and applications communities. However, scale is only one aspect of current big data trends; fundamentally, current and emerging problems in big data are a result of unprecedented complexity--in the structure of the data and how to analyze it, in dealing with unreliability and redundancy, in addressing the human factors of comprehending complex data sets, in formulating meaningful analyses, and in managing the dense, power-hungry data centers that house big data. The computer science solution to complexity is finding the right abstractions, those that hide as much triviality as possible while revealing the essence of the problem that is being addressed. The "big data challenge" has disrupted computer science by stressing to the very limits the familiar abstractions which define the relevant subfields in data analysis, data management and the underlying parallel systems. As a result, not enough of these challenges are revealed by isolating abstractions in a traditional software stack or standard algorithmic and analytical techniques, and attempts to address complexity either oversimplify or require low-level management of details. The authors believe that the abstractions for big data need to be rethought, and this reorganization needs to evolve and be sustained through continued cross-disciplinary collaboration.

  12. Influence of Atmospheric Variations on Photovoltaic Performance and Modeling Their Effects for Days with Clear Skies: Preprint

    SciTech Connect (OSTI)

    Marion, B.

    2012-06-01

    Although variation in photovoltaic (PV) performance is predominantly influenced by clouds, performance variations also exist for days with clear skies with different amounts of atmospheric constituents that absorb and reflect different amounts of radiation as it passes through the earth's atmosphere. The extent of the attenuation is determined by the mass of air and the amounts of water vapor, aerosols, and ozone that constitute the atmosphere for a particular day and location. Because these constituents selectively absorb radiation of particular wavelengths, their impact on PV performance is sensitive to the spectral response of the PV device. The impact may be assessed by calculating the spectral mismatch correction. This approach was validated using PV module performance data at the National Renewable Energy Laboratory (NREL) for summer, fall, and winter days with clear skies. The standard deviation of daily efficiencies for single-crystal Si, a-Si/a-Si/a-Si:Ge, CdTe, and CIGS PV modules were reduced to 0.4% to 1.0% (relative) by correcting for spectral mismatch, temperature, and angle-of-incidence effects.

  13. SKY Computers, Inc. Company Confidential. All Rights Reserved 08/27/03 Slide 1 Health Management System

    E-Print Network [OSTI]

    Kepner, Jeremy

    © SKY Computers, Inc. Company Confidential. All Rights Reserved 08/27/03 Slide 1 Health Management Complexity Input Output Input Output Compare #12;© SKY Computers, Inc. Company Confidential. All Rights available) · Repair/Recovery #12;© SKY Computers, Inc. Company Confidential. All Rights Reserved 08

  14. Sensitivity of full-sky experiments to large scale cosmic ray anisotropies

    E-Print Network [OSTI]

    Denton, Peter B

    2015-01-01

    The two main advantages of space-based observation of extreme energy ($\\gtrsim5\\times10^{19}$ eV) cosmic rays (EECRs) over ground based observatories are the increased field of view and the full-sky coverage with nearly uniform systematics across the entire sky. The former guarantees increased statistics, whereas the latter enables a clean partitioning of the sky into spherical harmonics. The discovery of anisotropies would help to identify the long sought origin of EECRs. We begin an investigation of the reach of a full-sky space-based experiment such as EUSO to detect anisotropies in the extreme-energy cosmic-ray sky compared to ground based partial-sky experiments such as the Pierre Auger Observatory and Telescope Array. The technique is explained here, and simulations for a Universe with just two nonzero multipoles, monopole plus either dipole or quadrupole, are presented. These simulations quantify the advantages of space-based, all-sky coverage.

  15. New Approaches to Object Classification in Synoptic Sky Surveys

    E-Print Network [OSTI]

    C. Donalek; A. Mahabal; S. G. Djorgovski; S. Marney; A. Drake; E. Glikman; M. J. Graham; R. Williams

    2008-10-27

    Digital synoptic sky surveys pose several new object classification challenges. In surveys where real-time detection and classification of transient events is a science driver, there is a need for an effective elimination of instrument-related artifacts which can masquerade as transient sources in the detection pipeline, e.g., unremoved large cosmic rays, saturation trails, reflections, crosstalk artifacts, etc. We have implemented such an Artifact Filter, using a supervised neural network, for the real-time processing pipeline in the Palomar-Quest (PQ) survey. After the training phase, for each object it takes as input a set of measured morphological parameters and returns the probability of it being a real object. Despite the relatively low number of training cases for many kinds of artifacts, the overall artifact classification rate is around 90%, with no genuine transients misclassified during our real-time scans. Another question is how to assign an optimal star-galaxy classification in a multi-pass survey, where seeing and other conditions change between different epochs, potentially producing inconsistent classifications for the same object. We have implemented a star/galaxy multipass classifier that makes use of external and a priori knowledge to find the optimal classification from the individually derived ones. Both these techniques can be applied to other, similar surveys and data sets.

  16. Optical Identification of the ASCA Large Sky Survey

    E-Print Network [OSTI]

    M. Akiyama; K. Ohta; T. Yamada; N. Kashikawa; M. Yagi; W. Kawasaki; M. Sakano; T. Tsuru; Y. Ueda; T. Takahashi; I. Lehmann; G. Hasinger; W. Voges

    2000-01-17

    We present results of optical identification of the X-ray sources detected in the ASCA Large Sky Survey. Optical spectroscopic observations were done for 34 X-ray sources which were detected with the SIS in the 2-7 keV band above 3.5 sigma. The sources are identified with 30 AGNs, 2 clusters of galaxies, and 1 galactic star. Only 1 source is still unidentified. The flux limit of the sample corresponds to 1 x 10^{-13} erg s^{-1} cm^{-2} in the 2-10 keV band. Based on the sample, the paper discusses optical and X-ray spectral properties of the AGNs, contribution of the sources to the Cosmic X-ray Background, and redshift and luminosity distributions of the AGNs. An interesting result is that the redshift distribution of the AGNs suggests a deficiency of high-redshift (0.5 10^{44} erg s^{-1}) absorbed narrow-line AGNs (so called type 2 QSOs).

  17. The Sloan Digital Sky Survey Monitor Telescope Pipeline

    E-Print Network [OSTI]

    D. L. Tucker; S. Kent; M. W. Richmond; J. Annis; J. A. Smith; S. S. Allam; C. T. Rodgers; J. L. Stute; J. K. Adelman-McCarthy; J. Brinkmann; M. Doi; D. Finkbeiner; M. Fukugita; J. Goldston; B. Greenway; J. E. Gunn; J. S. Hendry; D. W. Hogg; S. -I. Ichikawa; Z. Ivezic; G. R. Knapp; H. Lampeitl; B. C. Lee; H. Lin; T. A. McKay; A. Merrelli; J. A. Munn; E. H. Neilsen, Jr.; H. J. Newberg; G. T. Richards; D. J. Schlegel; C. Stoughton; A. Uomoto; B. Yanny

    2006-08-26

    The photometric calibration of the Sloan Digital Sky Survey (SDSS) is a multi-step process which involves data from three different telescopes: the 1.0-m telescope at the US Naval Observatory (USNO), Flagstaff Station, Arizona (which was used to establish the SDSS standard star network); the SDSS 0.5-m Photometric Telescope (PT) at the Apache Point Observatory (APO), New Mexico (which calculates nightly extinctions and calibrates secondary patch transfer fields); and the SDSS 2.5-m telescope at APO (which obtains the imaging data for the SDSS proper). In this paper, we describe the Monitor Telescope Pipeline, MTPIPE, the software pipeline used in processing the data from the single-CCD telescopes used in the photometric calibration of the SDSS (i.e., the USNO 1.0-m and the PT). We also describe transformation equations that convert photometry on the USNO-1.0m u'g'r'i'z' system to photometry the SDSS 2.5m ugriz system and the results of various validation tests of the MTPIPE software. Further, we discuss the semi-automated PT factory, which runs MTPIPE in the day-to-day standard SDSS operations at Fermilab. Finally, we discuss the use of MTPIPE in current SDSS-related projects, including the Southern u'g'r'i'z' Standard Star project, the u'g'r'i'z' Open Star Clusters project, and the SDSS extension (SDSS-II).

  18. The Sloan Digital Sky Survey Monitor Telescope Pipeline

    E-Print Network [OSTI]

    Tucker, D L; Richmond, M W; Annis, J; Smith, J A; Allam, S S; Rodgers, C T; Stute, J L; Adelman-McCarthy, J K; Brinkmann, J; Doi, M; Finkbeiner, D; Fukugita, M; Goldston, J; Greenway, B; Gunn, J E; Hendry, J S; Hogg, D W; Ichikawa, S I; Ivezic, Z; Knapp, G R; Lampeitl, H; Lee, B C; Lin, H; McKay, T A; Merrelli, A; Munn, J A; Neilsen, E H; Newberg, H J; Richards, G T; Schlegel, D J; Stoughton, C; Uomoto, A; Yanny, B

    2006-01-01

    The photometric calibration of the Sloan Digital Sky Survey (SDSS) is a multi-step process which involves data from three different telescopes: the 1.0-m telescope at the US Naval Observatory (USNO), Flagstaff Station, Arizona (which was used to establish the SDSS standard star network); the SDSS 0.5-m Photometric Telescope (PT) at the Apache Point Observatory (APO), New Mexico (which calculates nightly extinctions and calibrates secondary patch transfer fields); and the SDSS 2.5-m telescope at APO (which obtains the imaging data for the SDSS proper). In this paper, we describe the Monitor Telescope Pipeline, MTPIPE, the software pipeline used in processing the data from the single-CCD telescopes used in the photometric calibration of the SDSS (i.e., the USNO 1.0-m and the PT). We also describe transformation equations that convert photometry on the USNO-1.0m u'g'r'i'z' system to photometry the SDSS 2.5m ugriz system and the results of various validation tests of the MTPIPE software. Further, we discuss the s...

  19. Sloan Digital Sky Survey observing time tracking and efficiency measurement

    SciTech Connect (OSTI)

    Eric H. Neilsen, Jr.; Richard G. Kron; William N. Boroski

    2002-10-16

    Accurate and consistent time tracking is essential for evaluating the efficiency of survey observing operations and identifying areas that need improvement. Off the shelf time tracking software, which requires users to enter activities by hand, proved tedious to use and insufficiently exible. In this paper, we present an alternate time tracking system developed specifically for Sloan Digital Sky Survey observing. This system uses an existing logging system, murmur, to log the beginning and ending times of tracked circumstances, including activities, weather, and problems which effect observing. Operations software automatically generates most entries for routine observing activities; in a night of routine observing, time tracking requires little or no attention from the observing staff. A graphical user interface allows observers to make entries marking time lost to weather and equipment, and to correct inaccurate entries made by the observing software. The last is necessary when the change in activity is not marked by a change in the state of the software or instruments, or when the time is used for engineering or other observing not part of routine survey data collection. A second utility generates reports of time usage from these logs. These reports include totals for the time spent for each observing task, time lost to weather and problems, efficiency statistics for comparison with the survey baseline, and a detailed listing of what activities and problems were present in any covered time period.

  20. Sloan Digital Sky Survey photometric telescope automation and observing software

    SciTech Connect (OSTI)

    Eric H. Neilsen, Jr. et al.

    2002-10-16

    The photometric telescope (PT) provides observations necessary for the photometric calibration of the Sloan Digital Sky Survey (SDSS). Because the attention of the observing staff is occupied by the operation of the 2.5 meter telescope which takes the survey data proper, the PT must reliably take data with little supervision. In this paper we describe the PT's observing program, MOP, which automates most tasks necessary for observing. MOP's automated target selection is closely modeled on the actions a human observer might take, and is built upon a user interface that can be (and has been) used for manual operation. This results in an interface that makes it easy for an observer to track the activities of the automating procedures and intervene with minimum disturbance when necessary. MOP selects targets from the same list of standard star and calibration fields presented to the user, and chooses standard star fields covering ranges of airmass, color, and time necessary to monitor atmospheric extinction and produce a photometric solution. The software determines when additional standard star fields are unnecessary, and selects survey calibration fields according to availability and priority. Other automated features of MOP, such as maintaining the focus and keeping a night log, are also built around still functional manual interfaces, allowing the observer to be as active in observing as desired; MOP's automated features may be used as tools for manual observing, ignored entirely, or allowed to run the telescope with minimal supervision when taking routine data.

  1. 2013 strategic petroleum reserve big hill well integrity grading report.

    SciTech Connect (OSTI)

    Lord, David L.; Roberts, Barry L.; Lord, Anna C. Snider; Bettin, Giorgia; Sobolik, Steven Ronald; Park, Byoung Yoon; Rudeen, David Keith; Eldredge, Lisa; Wynn, Karen; Checkai, Dean; Perry, James Thomas

    2014-02-01

    This report summarizes the work performed in developing a framework for the prioritization of cavern access wells for remediation and monitoring at the Big Hill Strategic Petroleum Reserve site. This framework was then applied to all 28 wells at the Big Hill site with each well receiving a grade for remediation and monitoring. Numerous factors affecting well integrity were incorporated into the grading framework including casing survey results, cavern pressure history, results from geomechanical simulations, and site geologic factors. The framework was developed in a way as to be applicable to all four of the Strategic Petroleum Reserve sites.

  2. Quantum particle production near the big rip revisited

    E-Print Network [OSTI]

    F. G. Alvarenga; A. B. Batista; J. C. Fabris; M. J. S. Houndjo

    2009-04-06

    The effect of quantum particle production near the big rip singularity has been investigated previously, with the conclusion that the energy of the produced particle decreases as the future singularity is approached. Hence, the effect of particle production would not be effective to avoid the big rip singularity. That calculation was performed by introducing an ultra-violet cut-off. In the present work we consider a renormalization of the energy-momentum tensor, obtainning a different expression for the particle production. The new expression seems to indicate that the effect of particle production may be dominant as the singularity is approached.

  3. Dirac Fields in Loop Quantum Gravity and Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Martin Bojowald; Rupam Das; Robert J. Scherrer

    2008-03-19

    Big Bang nucleosynthesis requires a fine balance between equations of state for photons and relativistic fermions. Several corrections to equation of state parameters arise from classical and quantum physics, which are derived here from a canonical perspective. In particular, loop quantum gravity allows one to compute quantum gravity corrections for Maxwell and Dirac fields. Although the classical actions are very different, quantum corrections to the equation of state are remarkably similar. To lowest order, these corrections take the form of an overall expansion-dependent multiplicative factor in the total density. We use these results, along with the predictions of Big Bang nucleosynthesis, to place bounds on these corrections.

  4. Big Creek Hot Springs Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake, California:BigBig

  5. Cross-matching Engine for Incremental Photometric Sky Survey

    E-Print Network [OSTI]

    Nádvorník, Ing Ji?í

    2015-01-01

    For light curve generation, a pre-planned photometry survey is needed nowadays, where all of the exposure coordinates have to be given and don't change during the survey. This thesis shows it is not required and we can data-mine these light curves from astronomical data that was never meant for this purpose. With this approach, we can recycle all of the photometric surveys in the world and generate light curves of observed objects for them. This thesis is addressing mostly the catalog generation process, which is needed for creating the light curves. In practice, it focuses on one of the most important problems in astroinformatics which is clustering data volumes on Big Data scale where most of the traditional techniques stagger. We consider a wide variety of possible solutions from the view of performance, scalability, distributability, etc. We defined criteria for time and memory complexity which we evaluated for all of the tested solutions. Furthermore, we created quality standards which we also take into ...

  6. EECBG Success Story: Big Savings for Texas City with Energy Monitoring...

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

    Big Savings for Texas City with Energy Monitoring Sensors EECBG Success Story: Big Savings for Texas City with Energy Monitoring Sensors August 19, 2010 - 5:00pm Addthis With more...

  7. OpenMSI: A Science Gateway to Sort Through Bio-Imaging's Big...

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

    OpenMSI: A Science Gateway to Sort Through Bio-Imaging's Big Datasets OpenMSI: A Science Gateway to Sort Through Bio-Imaging's Big Datasets August 27, 2013 | Tags: Basic Energy...

  8. Big Bang Expansion A textbook example of how observations drive theory

    E-Print Network [OSTI]

    Korn, Andreas

    of structure seeds. The cosmic web will later form out of these sedes. #12;II. Observing the CMB Variations WMAP tot = 1 Dark matter: 23% Dark energy (): 73% #12;Big Bang: a self-consistent theory? Big Bang

  9. Small Changes Help Long Island Homeowner Save Big on Energy Costs...

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

    Small Changes Help Long Island Homeowner Save Big on Energy Costs Small Changes Help Long Island Homeowner Save Big on Energy Costs April 16, 2013 - 12:20pm Addthis Located near...

  10. A Calibrated Measurement of the Near-IR Continuum Sky Brightness Using Magellan/FIRE

    E-Print Network [OSTI]

    Sullivan, Peter William

    We characterize the near-IR sky background from 308 observations with the Folded-port InfraRed Echellette (FIRE) spectrograph at Magellan. A subset of 105 observations selected to minimize lunar and thermal effects gives ...

  11. A SIMPLIFIED PROCEDURE FOR CALCULATING THE EFFECTS OF DAYLIGHT FROM CLEAR SKIES

    E-Print Network [OSTI]

    Bryan, Harvey J.

    2012-01-01

    Reflected Component or IRC). The total for these threeDaylight Factor SC + ERC + IRC The Sky Component: The skycomponent is given as: Average IRC where T Transmittance of

  12. OT 060420: A Seemingly Optical Transient Recorded by All-Sky Cameras

    E-Print Network [OSTI]

    Lior Shamir; Robert J. Nemiroff

    2006-07-03

    We report on a ~5th magnitude flash detected for approximately 10 minutes by two CONCAM all-sky cameras located in Cerro Pachon - Chile and La Palma - Spain. A third all-sky camera, located in Cerro Paranal - Chile did not detect the flash, and therefore the authors of this paper suggest that the flash was a series of cosmic-ray hits, meteors, or satellite glints. Another proposed hypothesis is that the flash was an astronomical transient with variable luminosity. In this paper we discuss bright optical transient detection using fish-eye all-sky monitors, analyze the apparently false-positive optical transient, and propose possible causes to false optical transient detection in all-sky cameras.

  13. COLORS AND KINEMATICS OF L DWARFS FROM THE SLOAN DIGITAL SKY SURVEY

    E-Print Network [OSTI]

    Schmidt, Sarah J.

    We present a sample of 484 L dwarfs, 210 of which are newly discovered from the Sloan Digital Sky Survey (SDSS) Data Release 7 spectroscopic database. We combine this sample with known L dwarfs to investigate their ...

  14. Prospects for Future Very High-Energy Gamma-Ray Sky Survey: Impact...

    Office of Scientific and Technical Information (OSTI)

    Prospects for Future Very High-Energy Gamma-Ray Sky Survey: Impact of Secondary Gamma Rays Citation Details In-Document Search Title: Prospects for Future Very High-Energy...

  15. Spectrometer for Sky-Scanning Sun-Tracking Atmospheric Research (4STAR): Instrument Technology

    SciTech Connect (OSTI)

    Dunagan, Stephen; Johnson, Roy; Zavaleta, Jhony; Russell, P. B.; Schmid, Beat; Flynn, Connor J.; Redemann, Jens; Shinozuka, Yohei; Livingston, J.; Segal Rozenhaimer, Michal

    2013-08-06

    The Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR) combines airborne sun tracking and sky scanning with diffraction spectroscopy, to improve knowledge of atmospheric constituents and their links to air-pollution/climate. Direct beam hyper-spectral measurement of optical depth improves retrievals of gas constituents and determination of aerosol properties. Sky scanning enhances retrievals of aerosol type and size distribution. 4STAR measurements will tighten the closure between satellite and ground-based measurements. 4STAR incorporates a modular sun-tracking/ sky-scanning optical head with fiber optic signal transmission to rack mounted spectrometers, permitting miniaturization of the external optical head, and future detector evolution. Technical challenges include compact optical collector design, radiometric dynamic range and stability, and broad spectral coverage. Test results establishing the performance of the instrument against the full range of operational requirements are presented, along with calibration, engineering flight test, and scientific field campaign data and results.

  16. The Digital Skin of Cities: Urban Theory and Research in the Age of the Sensored and Metered City, Ubiquitous Computing, and Big Data

    E-Print Network [OSTI]

    Rabari, Chirag

    2013-01-01

    2012, September 30). “Big data: Mind the gaps. ” The BostonQuestions for Big Data. Information, Communication &BigQuery – Real-time big data analytics in the cloud [

  17. AutoGrid - Turning Big Data Into Power with the Energy Data Platform and Apps

    SciTech Connect (OSTI)

    Narayan, Amit; Dresselhuys, Eric; Kulp, Yann; Buseman, Greg; Piette, Mary Ann; Tang, Andrew; Dailey, Karla; Knudsen, Chris

    2014-03-25

    AutoGrid personnel discuss how they are turning big data into power with the energy data platform and apps.

  18. Milagro: A TeV Gamma-Ray Monitor of the Northern Hemisphere Sky

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    transients, such as gamma-ray bursts, and all sky surveys are diÆcult. A new type of TeV -ray observatoryMilagro: A TeV Gamma-Ray Monitor of the Northern Hemisphere Sky B.L. Dingus 1 , R. Atkins 1 , W type of very high energy (> a few 100 GeV) gamma-ray observatory, Milagro, has been built with a large

  19. CORRELATIONS AMONG GALAXY PROPERTIES FROM THE SLOAN DIGITAL SKY SURVEY

    SciTech Connect (OSTI)

    Li Zhongmu; Mao Caiyan, E-mail: zhongmu.li@gmail.com [Institute for Astronomy and History of Science and Technology, Dali University, Dali 671003 (China)

    2013-07-01

    Galaxies are complex systems with many properties. Correlations among galaxy properties can supply important clues for studying the formation and evolution of galaxies. Using principal component analysis and least-squares fitting, this paper investigates the correlations among galactic parameters involving more properties (color, morphology, stellar population, and absolute magnitude) than previous studies. We use a volume-limited sample (whole sample) of 75,423 galaxies that was selected from the Sloan Digital Sky Survey Data Release 2 and divided into two subsamples (blue and red samples) using a critical color of (g - r) = 0.70 mag. In addition to recovering some previous results, we also obtain some new results. First, all separators for dividing galaxies into two groups can be related via good parameter-first principal component (PC1) correlations. A critical PC1 that indicates whether or not stellar age (or the evolution of a stellar population over time) is important can be used to separate galaxies. This suggests that a statistical parameter, PC1, is helpful in understanding the physical separators of galaxies. In addition, stellar age is shown to be unimportant for red galaxies, while both stellar age and mass are dominating parameters of blue galaxies. This suggests that the various numbers of dominating parameters of galaxies may result from the use of different samples. Finally, some parameters are shown to be correlated, and quantitative fits for a few correlations are obtained, e.g., log(t) = 8.57 + 1.65 (g - r) for the age (log t) and color (g - r) of blue galaxies and log (M{sub *}) = 4.31 - 0.30 M{sub r} for the stellar mass (log M{sub *}) and absolute magnitude (M{sub r}) of red galaxies. The median relationships between various parameter pairs are also presented for comparison.

  20. DISCRIMINATING BETWEEN CLOUDY, HAZY, AND CLEAR SKY EXOPLANETS USING REFRACTION

    SciTech Connect (OSTI)

    Misra, Amit K.; Meadows, Victoria S.

    2014-11-01

    We propose a method to distinguish between cloudy, hazy, and clear sky (free of clouds and hazes) exoplanet atmospheres that could be applicable to upcoming large aperture space- and ground-based telescopes such as the James Webb Space Telescope (JWST) and the European Extremely Large Telescope (E-ELT). These facilities will be powerful tools for characterizing transiting exoplanets, but only after a considerable amount of telescope time is devoted to a single planet. A technique that could provide a relatively rapid means of identifying haze-free targets (which may be more valuable targets for characterization) could potentially increase the science return for these telescopes. Our proposed method utilizes broadband observations of refracted light in the out-of-transit spectrum. Light refracted through an exoplanet atmosphere can lead to an increase of flux prior to ingress and subsequent to egress. Because this light is transmitted at pressures greater than those for typical cloud and haze layers, the detection of refracted light could indicate a cloud- or haze-free atmosphere. A detection of refracted light could be accomplished in <10 hr for Jovian exoplanets with JWST and <5 hr for super-Earths/mini-Neptunes with E-ELT. We find that this technique is most effective for planets with equilibrium temperatures between 200 and 500 K, which may include potentially habitable planets. A detection of refracted light for a potentially habitable planet would strongly suggest the planet was free of a global cloud or haze layer, and therefore a promising candidate for follow-up observations.

  1. Pre-big bang scenario and the WZW model

    E-Print Network [OSTI]

    Marcel Jacon

    2015-06-09

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

  2. Hydroliquefaction of Big Brown lignite in supercritical fluids 

    E-Print Network [OSTI]

    Chen, Hui

    1996-01-01

    Big Brown lignite was liquefied in a fixed bed tube reactor. Three solvents were used in the liquefaction studies, toluene, cyclohexane and methanol. Two co-solvents, tetralin and water were used with toluene. The effects of the solvents and co...

  3. People's Physics Book Ch 20-1 The Big Ideas

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    People's Physics Book Ch 20-1 The Big Ideas Einstein believed that the laws of physics do of physics. In other words, if you are on a moving train and drop a ball or if you are standing on a farm and drop a ball, the physics that describe the motion of that ball will be the same. Einstein realized

  4. SHADING CALCULATIONS FOR THE BIG DISH Jeff Cumpston1

    E-Print Network [OSTI]

    ], building the 'SG4' 500m2 Big Dish solar paraboloidal concentrator for solar-thermal to electric energy into an array of a specific shape with a pre-defined energy transport network was simulated for a site location of the energy transport network pipe length. Results shows that dish separations can be altered to reduce pipe

  5. The State of the Art in Supporting "Big Data"

    E-Print Network [OSTI]

    Oliva, Aude

    of investigation · Startups in this space · If there is any achilles heel in big data, this is it! #12;10 DBMS Security · Works well -- i.e. I have never heard of the DBMS screwing up in this area. #12;11 Encryption · Can be entrusted to the DBMS -- Appropriate when there are many clients sharing data -- Don't want

  6. Adventures in Transportation from a (Big) Data Perspective

    E-Print Network [OSTI]

    Bertini, Robert L.

    + Adventures in Transportation from a (Big) Data Perspective Kristin Tufte NEDB Day, Jan 30, 2015 Maseeh College of Engineering and Computer Science #12;+Portal... !Portland-Vancouver Transportation Data Archive ! Policy of Open Data ! Publicly-funded (Thanks to NSF, FHWA, Metro, RTC,TREC) ! Focus on open

  7. The Big Data Newsvendor: Practical Insights from Machine Learning Analysis

    E-Print Network [OSTI]

    Rudin, Cynthia

    2013-10-16

    We present a version of the newsvendor problem where one has n observations of p features as well as past demand. We consider both \\big data" (p=n = O(1)) as well as small data (p=n = o(1)). For small data, we provide a ...

  8. The Big Data Newsvendor: Practical Insights from Machine Learning

    E-Print Network [OSTI]

    Rudin, Cynthia

    2014-02-06

    We investigate the newsvendor problem when one has n observations of p features related to the demand as well as past demands. Both small data (p=n = o(1)) and big data (p=n = O(1)) are considered. For both cases, we propose ...

  9. "Machine learning for big data analytics in biomedicine"

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    "Machine learning for big data analytics in biomedicine" Yanjun (Jane) Qi Assistant Professor yq2h-learning techniques on important challenges in biomedicine, especially those dealing with enormous data sets. Taking on Data Mining (ICDM) · Y. Qi, et al,(2009) "Systematic prediction of human membrane receptor interactions

  10. People's Physics book Ch 2-1 The Big Idea

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    People's Physics book Ch 2-1 The Big Idea Energy is a measure of the amount of, or potential for, dynamical activity in something. The total amount of energy in the universe is always the same universe. A group of things (we'll use the word system) has a certain amount of energy. Energy can be added

  11. BIG BEAR SOLAR OBSERVATORY CENTER FOR SOLAR-TERRESTRIAL RESEARCH

    E-Print Network [OSTI]

    BIG BEAR SOLAR OBSERVATORY CENTER FOR SOLAR-TERRESTRIAL RESEARCH Faculty Position in Solar Physics, New Jersey Institute of Technology A tenure track faculty position in solar physics is available of NJIT's program in solar physics, visit http://solar.njit.edu. Applicants are required to have a Ph

  12. Small Buildings = Big Opportunity for Energy Savings (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-12-01

    Small buildings have a big impact on energy use. In the United States, 44.6 million small buildings consume 44% of the overall energy used in buildings, presenting an enormous opportunity to cut costs, energy use, and greenhouse gas emissions.

  13. SHADING CALCULATIONS FOR THE BIG DISH Jeff Cumpston1

    E-Print Network [OSTI]

    ], building the 'SG4' 500m2 Big Dish solar paraboloidal concentrator for solar-thermal to electric energy shading fraction in an array of two-axis tracking collectors. Annual shading on the SG4 dish included transport network, these losses may be reduced by closely spacing collectors within the array. Another form

  14. Original article Energy balance storage terms and big-leaf

    E-Print Network [OSTI]

    Boyer, Edmond

    for the determination of big leaf forest evapotranspiration are not of the utmost importance. energy storage / deciduous. The available energy is defined as the net radiation (Rn), from which the net change in energy storage within), biomass heat storage (Sv) and photosynthetic energy storage (Sp). Soil heat storage Sg can be further

  15. People's Physics Book Ch 5-1 The Big Idea

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    People's Physics Book Ch 5-1 The Big Idea Acceleration is caused by force. All forces come in pairs of two bodies upon each other are always equal, and directed to contrary parts. Key Concepts · An object pairs must obey three rules: they must be of the same type of force, 1 Principia in modern English

  16. YOU MIGHT BE CELEBRATING THE BIG 3-0 IF....

    E-Print Network [OSTI]

    YOU MIGHT BE CELEBRATING THE BIG 3-0 IF.... You remember the power-house figures pictured or shine CVHS will be open for family fun, so do come to experience all the amazing Open House activities for a large variety of exotic animal clinical care. You might save a life with your purchase! To partner

  17. Constraints on massive gravity theory from big bang nucleosynthesis

    E-Print Network [OSTI]

    G. Lambiase

    2012-08-27

    The massive gravity cosmology is studied in the scenario of big bang nucleosynthesis. By making use of current bounds on the deviation from the fractional mass, we derive the constraints on the free parameters of the theory. The cosmological consequences of the model are also discussed in the framework of the PAMELA experiment.

  18. Long Lived Charged Massive Particles and Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Kazunori Kohri; Fumihiro Takayama

    2006-11-06

    We consider Big Bang Nucleosynthesis(BBN) with long lived charged massive particles. Before decaying, the long lived massive particles recombines with a light element to form a bound state like a hydrogen atom. We discuss the possible change of primordial light element abundances due to formations of such bound states.

  19. ORIGINAL ARTICLE Big dams and salmon evolution: changes in thermal

    E-Print Network [OSTI]

    Angilletta, Michael

    ORIGINAL ARTICLE Big dams and salmon evolution: changes in thermal regimes and their potential (Oncorhynchus spp.) across portions of their natural range, dams have arguably played a major role in many locations (NRC 1996; Lichatowich 1999; Ruckelshaus et al. 2002). Large dams (>15 m tall)­ designed

  20. Neutrino energy transport in weak decoupling and big bang nucleosynthesis

    E-Print Network [OSTI]

    Grohs, E; Kishimoto, C T; Paris, M W; Vlasenko, A

    2015-01-01

    We calculate the evolution of the early universe through the epochs of weak decoupling, weak freeze-out and big bang nucleosynthesis (BBN) by simultaneously coupling a full strong, electromagnetic, and weak nuclear reaction network with a multi-energy group Boltzmann neutrino energy transport scheme. Such an approach allows a detailed accounting of the evolution of the $\

  1. Data Aware Caching for Big-Data Applications Using MapReduce

    E-Print Network [OSTI]

    Wu, Jie

    Data Aware Caching for Big-Data Applications Using MapReduce Yaxiong Zhao, Jie Wu #12;Outline · MapReduce and big-data · Cache description · Protocol ­ Relationship between job types and cache organization · Conclusion #12;Outline · MapReduce and big-data · Cache description · Protocol ­ Cache request and reply

  2. Representative Subsets For Big Data Learning using k-NN Graphs

    E-Print Network [OSTI]

    Representative Subsets For Big Data Learning using k-NN Graphs Raghvendra Mall, Vilen Jumutc, Rocco a deterministic method to obtain subsets from big data which are a good representative of the inherent structure a subset for this big data network. The FURS selection technique selects nodes from different dense regions

  3. CloudVista: Interactive and Economical Visual Cluster Analysis for Big Data in the Cloud

    E-Print Network [OSTI]

    CloudVista: Interactive and Economical Visual Cluster Analysis for Big Data in the Cloud Huiqi Xu Analysis of big data has become an important problem for many business and scientific applications, among which clustering and visualizing clusters in big data raise some unique challenges. This demonstration

  4. Preface: Big Data Is Not About The Data! 1 Gary King 2

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Preface: Big Data Is Not About The Data! 1 Gary King 2 Institute for Quantitative Social Science to it. Now "Big Data" is what you and I do. As trivial as this change sounds, we should be grateful is about. Throughout, we need to remember that for the most part, Big Data is not about the data. Data

  5. Recent Advances in Autonomic Provisioning of Big Data Applications on Clouds

    E-Print Network [OSTI]

    Sun, Xian-He

    Recent Advances in Autonomic Provisioning of Big Data Applications on Clouds Rajiv Ranjan, Lizhe for the user, which just pays for the used services. Big Data [2], [3], [4], [5] applications has become a com, medical imaging, and the like. The "BigData" problem, which is defined as the practice of collecting

  6. Crowdsourcing Semantics for Big Data in Geoscience Applications Tom Narock1

    E-Print Network [OSTI]

    Hitzler, Pascal

    Crowdsourcing Semantics for Big Data in Geoscience Applications Tom Narock1 and Pascal Hitzler 1 the potential to overcome some of the issues currently surrounding Big Data. Semantic technologies, and complexity of data sources ­ the very definition of Big Data. Yet, for some tasks, semantic algorithms do

  7. Towards an Understanding of Facets and Exemplars of Big Data Applications Geoffrey C.Fox1

    E-Print Network [OSTI]

    Towards an Understanding of Facets and Exemplars of Big Data Applications Geoffrey C.Fox1 Big Data applications from a variety of research and commercial areas and suggest a set Big Data properties, and then to understand applications with those properties. There are many

  8. Scalable Euclidean Embedding for Big Data Zohreh Alavi, Sagar Sharma, Lu Zhou, Keke Chen

    E-Print Network [OSTI]

    Scalable Euclidean Embedding for Big Data Zohreh Alavi, Sagar Sharma, Lu Zhou, Keke Chen Data is critical to many visualization techniques. At big-data scale, these algorithms need to be scalable affecting the algorithms are important research problems for visually analyzing big data. We propose

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

    E-Print Network [OSTI]

    Arampatzis, Avi

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

  10. Principles of Software-defined Elastic Systems for Big Data Analytics

    E-Print Network [OSTI]

    Dustdar, Schahram

    Principles of Software-defined Elastic Systems for Big Data Analytics Hong-Linh Truong, Schahram}@dsg.tuwien.ac.at Abstract Techniques for big data analytics should support principles of elasticity that are inherent characteristics of big data described through the "four V's of volume, variety, velocity and veracity" [1] have

  11. Becoming data-savvy in a big-data world Meng Xu and Seung Yon Rhee

    E-Print Network [OSTI]

    Becoming data-savvy in a big-data world Meng Xu and Seung Yon Rhee Carnegie Institution for Science analysis. Big data analysis Advances in digital, information, and communications technologies generate enormous amounts of data ­ coined big data ­ in all sectors of our society [The Economist (2010) http

  12. Data Locality-Aware Query Evaluation for Big Data Analytics in Distributed Clouds

    E-Print Network [OSTI]

    Liang, Weifa

    Data Locality-Aware Query Evaluation for Big Data Analytics in Distributed Clouds Qiufen Xia, Weifa. Such data referred to as big data now becomes an invaluable asset to many businesses or organizations, as it can be used to identify business advantages by helping them make their strategic decisions. Big data

  13. When Private Set Intersection Meets Big Data: An Efficient and Scalable Protocol

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    When Private Set Intersection Meets Big Data: An Efficient and Scalable Protocol Changyu Dong1 to scale up smoothly when data being protected is big. Efficiency and scalability become critical criteria for privacy preserving protocols in the age of Big Data. In this paper, we present a new Private Set

  14. Querying Big Data: Bridging Theory and Practice Wenfei Fana,b

    E-Print Network [OSTI]

    Fan, Wenfei

    Querying Big Data: Bridging Theory and Practice Wenfei Fana,b , Jinpeng Huaib aInternational Research Center on Big Data, Beihang University, Beijing, No.37 XueYuan Road, 100083, Beijing, China Abstract Big data introduces challenges to query answering, from theory to practice. A number of questions

  15. Big Data: A Foundational Explanation Michael J. Sal, Richard J. Barilla, Steven Lindo, and Sam Elnagdy

    E-Print Network [OSTI]

    Tappert, Charles

    D6.1 Big Data: A Foundational Explanation Michael J. Salé, Richard J. Barilla, Steven Lindo for the science and practice of Big Data analytics. So long as innovations in data processing and storage capabilities continue, Big Data models and the technologies that enable them will also continue to evolve

  16. Genetic Algorithm based Data-aware Group Scheduling for Big Data Clouds Raghavendra Kune1

    E-Print Network [OSTI]

    Buyya, Rajkumar

    Genetic Algorithm based Data-aware Group Scheduling for Big Data Clouds Raghavendra Kune1 , Pramod on demand. Big Data Clouds is a new generation data analytics platform using Cloud computing as a back end and empirical tools. MapReduce scheduling models for Big Data computing operate in the cluster mode, where

  17. Bayes and Big Data: The Consensus Monte Carlo Algorithm Steven L. Scott1

    E-Print Network [OSTI]

    Cortes, Corinna

    Bayes and Big Data: The Consensus Monte Carlo Algorithm Steven L. Scott1 , Alexander W. Blocker1 of Business October 31, 2013 Abstract A useful definition of "big data" is data that is too big to comfortably by splitting data across multiple machines. Communication between large numbers of machines is expensive

  18. Big Data Storytelling through Interactive Maps Jayant Madhavan, Sreeram Balakrishnan, Kathryn Brisbin, Hector Gonzalez, Nitin Gupta,

    E-Print Network [OSTI]

    Cortes, Corinna

    Big Data Storytelling through Interactive Maps Jayant Madhavan, Sreeram Balakrishnan, Kathryn) brings big data collaboration and visualization to data-experts who possess neither large data high-profile stories. 1 Introduction Much of the current excitement about Big Data refers to performing

  19. On Interference-aware Provisioning for Cloud-based Big Data Processing

    E-Print Network [OSTI]

    Liu, Jiangchuan (JC)

    On Interference-aware Provisioning for Cloud-based Big Data Processing Yi YUAN, Haiyang WANG, Dan--Recent advances in cloud-based big data analysis offers a convenient mean for providing an elastic and cost and IBM deploy various of big data systems on their cloud platforms, aiming to occupy the huge market

  20. A System Architecture for Running Big Data Workflows in the Cloud Andrey Kashlev, Shiyong Lu

    E-Print Network [OSTI]

    Lu, Shiyong

    A System Architecture for Running Big Data Workflows in the Cloud Andrey Kashlev, Shiyong Lu management systems (SWFMSs) to utilize the power of Cloud computing to perform big data analyses. Unlike by running a big data workflow in Amazon EC2, FutureGrid Eucalyptus and OpenStack clouds. From

  1. Evaluating Corpora Documentation with regards to the Ethics and Big Data Charter

    E-Print Network [OSTI]

    Evaluating Corpora Documentation with regards to the Ethics and Big Data Charter Alain Couillault.de-mazancourt@eptica.com Abstract The authors have written the Ethics and Big Data Charter in collaboration with various agencies to show the benefit it offers. Keywords: language resources, ethics, documentation, big data. 1

  2. The Trento Big Data Platform for Public Administration and Large Companies: Use cases and Opportunities

    E-Print Network [OSTI]

    Velegrakis, Yannis

    The Trento Big Data Platform for Public Administration and Large Companies: Use cases in the Trentino territory for the collection, cleaning, integration and analysis of BigData. 2. BIGDATA PLATFORM Making the data public has no value if none can actually access, study and use that data. The BigData

  3. SLA-aware Provisioning and Scheduling of Cloud Resources for Big Data Analytics

    E-Print Network [OSTI]

    Buyya, Rajkumar

    SLA-aware Provisioning and Scheduling of Cloud Resources for Big Data Analytics Mohammed Alrokayan and traditional data management system could not keep up to scale of Big Data. They have to either invest heavily on their infrastructure or move their Big Data analytics to Cloud where they can benefit from both on-demand scalability

  4. Big data from small data: data-sharing in the 'long tail' of neuroscience.

    E-Print Network [OSTI]

    Ferguson, Adam R; Nielson, Jessica L; Cragin, Melissa H; Bandrowski, Anita E; Martone, Maryann E

    2014-01-01

    F O C U S O N B I G D ATA Big data from small data: data-small data sources into big data for improved knowledgeo mm e n ta r y Organized big data Data size Long-tail data

  5. Big Data Retour vers le Futur -3 -De Statisticien Data Scientist

    E-Print Network [OSTI]

    Besse, Philippe

    Big Data ­ Retour vers le Futur - 3 - De Statisticien à Data Scientist Philippe Besse Aurélien ; statistical learning ; big data. Université de Toulouse ­ INSA, Institut de Mathématiques, UMR CNRS 5219 omiques la décennie suivante ; ­ avènement récent et très médiatisé du big data. Nous terminons en

  6. Big Data Use Cases and Requirements GEOFFREY FOX, Indiana University, School of Informatics and Computing

    E-Print Network [OSTI]

    Big Data Use Cases and Requirements GEOFFREY FOX, Indiana University, School of Informatics and Computing Co-Chair, Use Cases & Requirements Subgroup, NIST Big Data Public Working Group WO CHANG, National Institute of Standards and Technologies Co-Chair, NIST Big Data Public Working Group Abstract We formed

  7. Handling Big Dimensions in Distributed Data Warehouses using the DWS Technique

    E-Print Network [OSTI]

    Song, Il-Yeol

    Handling Big Dimensions in Distributed Data Warehouses using the DWS Technique Marco Costa Critical tables creates a limitation to the applicability of the DWS technique to data warehouses with big is also common in big data warehouses [7]. Two types of parallelism can be explored at the query level

  8. The Big Picture Multisets Sets One Last Word A Tiny Introduction to Group Arithmetic

    E-Print Network [OSTI]

    Ponomarenko, Vadim

    The Big Picture Multisets Sets One Last Word A Tiny Introduction to Group Arithmetic past University July 3, 2008 http://www-rohan.sdsu.edu/vadim/arithmetic.pdf #12;The Big Picture Multisets Sets One of S. "Sequence"=Multiset #12;The Big Picture Multisets Sets One Last Word the basic problem Let G

  9. PHYSICAL REVIEW C 83, 018801 (2011) Electron screening and its effects on big-bang nucleosynthesis

    E-Print Network [OSTI]

    Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

    2011-01-01

    PHYSICAL REVIEW C 83, 018801 (2011) Electron screening and its effects on big-bang nucleosynthesis screening on nuclear reaction rates occurring during the big-bang nucleosynthesis epoch. The sensitivity. This work rules out electron screening as a relevant ingredient to big-bang nucleosynthesis, confirming

  10. 2013 Mark S. Fox City Data: Big, Open and Linked 1 City Data: Big, Open and Linked

    E-Print Network [OSTI]

    Sun, Yu

    is their "grease disposal" compliance program1 . 61% of all sewer backups are caused by improperly disposed of restaurant grease. The city combined sewer data, grease hauling licenses data and grease producer data sources of grease entering the sewer system. Big Data is the buzzword du jour. It is rare to read

  11. EA-1617: Lovell-Yellowtail and Basin-Lovell Transmission Line Rebuild Project, Big Horn County, Wyoming, and Big Horn and Carbon Counties, Montana

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration prepared this EA and a finding of no significant impact for a proposal to rebuild the Lovell-Yellowtail (LV-YT) No. 1 and No. 2 115-kV transmission lines, located in Big Horn County, Wyoming, and Big Horn and Carbon Counties in Montana, and the Basin-Lovell 115-kV transmission line in Big Horn County, Wyoming.

  12. THE SLOAN DIGITAL SKY SURVEY REVERBERATION MAPPING PROJECT: TECHNICAL OVERVIEW

    SciTech Connect (OSTI)

    Shen, Yue; Brandt, W. N.; Dawson, Kyle S.; Hall, Patrick B.; McGreer, Ian D.; Fan, Xiaohui; Anderson, Scott F.; Chen, Yuguang; Denney, Kelly D.; Eftekharzadeh, Sarah; Gao, Yang; Green, Paul J.; Greene, Jenny E.; Ho, Luis C.; Horne, Keith; Kelly, Brandon C.; and others

    2015-01-01

    The Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project is a dedicated multi-object RM experiment that has spectroscopically monitored a sample of 849 broad-line quasars in a single 7 deg{sup 2} field with the SDSS-III Baryon Oscillation Spectroscopic Survey spectrograph. The RM quasar sample is flux-limited to i {sub psf} = 21.7 mag, and covers a redshift range of 0.1 < z < 4.5 without any other cuts on quasar properties. Optical spectroscopy was performed during 2014 January-July dark/gray time, with an average cadence of ?4 days, totaling more than 30 epochs. Supporting photometric monitoring in the g and i bands was conducted at multiple facilities including the Canada-France-Hawaii Telescope (CFHT) and the Steward Observatory Bok telescope in 2014, with a cadence of ?2 days and covering all lunar phases. The RM field (R.A., decl. = 14:14:49.00, +53:05:00.0) lies within the CFHT-LS W3 field, and coincides with the Pan-STARRS 1 (PS1) Medium Deep Field MD07, with three prior years of multi-band PS1 light curves. The SDSS-RM six month baseline program aims to detect time lags between the quasar continuum and broad line region (BLR) variability on timescales of up to several months (in the observed frame) for ?10% of the sample, and to anchor the time baseline for continued monitoring in the future to detect lags on longer timescales and at higher redshift. SDSS-RM is the first major program to systematically explore the potential of RM for broad-line quasars at z > 0.3, and will investigate the prospects of RM with all major broad lines covered in optical spectroscopy. SDSS-RM will provide guidance on future multi-object RM campaigns on larger scales, and is aiming to deliver more than tens of BLR lag detections for a homogeneous sample of quasars. We describe the motivation, design, and implementation of this program, and outline the science impact expected from the resulting data for RM and general quasar science.

  13. SURVEYING THE DYNAMIC RADIO SKY WITH THE LONG WAVELENGTH DEMONSTRATOR ARRAY

    SciTech Connect (OSTI)

    Lazio, T. Joseph W.; Clarke, Tracy E.; Lane, W. M.; Gross, C.; Kassim, N. E.; Hicks, B.; Polisensky, E.; Stewart, K.; Ray, P. S.; Wood, D.; York, J. A.; Kerkhoff, A.; Dalal, N. Paravastu; Cohen, A. S.; Erickson, W. C.

    2010-12-15

    This paper presents a search for radio transients at a frequency of 73.8 MHz (4 m wavelength) using the all-sky imaging capabilities of the Long Wavelength Demonstrator Array (LWDA). The LWDA was a 16-dipole phased array telescope, located on the site of the Very Large Array in New Mexico. The field of view of the individual dipoles was essentially the entire sky, and the number of dipoles was sufficiently small that a simple software correlator could be used to make all-sky images. From 2006 October to 2007 February, we conducted an all-sky transient search program, acquiring a total of 106 hr of data; the time sampling varied, being 5 minutes at the start of the program and improving to 2 minutes by the end of the program. We were able to detect solar flares, and in a special-purpose mode, radio reflections from ionized meteor trails during the 2006 Leonid meteor shower. We detected no transients originating outside of the solar system above a flux density limit of 500 Jy, equivalent to a limit of no more than about 10{sup -2} events yr{sup -1} deg{sup -2}, having a pulse energy density {approx}>1.5 x 10{sup -20} J m{sup -2} Hz{sup -1} at 73.8 MHz for pulse widths of about 300 s. This event rate is comparable to that determined from previous all-sky transient searches, but at a lower frequency than most previous all-sky searches. We believe that the LWDA illustrates how an all-sky imaging mode could be a useful operational model for low-frequency instruments such as the Low Frequency Array, the Long Wavelength Array station, the low-frequency component of the Square Kilometre Array, and potentially the Lunar Radio Array.

  14. Improving Habitat Injured by Spill Response: Restoring the Night Sky

    E-Print Network [OSTI]

    on reverse side). The project involves multiple components: ·Foreachconservationsiteidentified,assessments Horizon oil spill, such as heavy equipment operation and lighting the beaches at night, caused significant is to restore beach nesting habitat for sea turtles by replacing harmful artificial lighting. Methods

  15. Challenges and Opportunities with Big Data A community white paper developed by leading researchers across the United States

    E-Print Network [OSTI]

    Challenges and Opportunities with Big Data A community white paper developed by leading researchers recognized broadly, and there is growing enthusiasm for the notion of ``Big Data.'' While the promise of Big, scale, timeliness, complexity, and privacy problems with Big Data impede progress at all phases

  16. StratOS: A Big Data Framework for Scientific Computing

    E-Print Network [OSTI]

    Stickley, Nathaniel R

    2015-01-01

    We introduce StratOS, a Big Data platform for general computing that allows a datacenter to be treated as a single computer. With StratOS, the process of writing a massively parallel program for a datacenter is no more complicated than writing a Python script for a desktop computer. Users can run pre-existing analysis software on data distributed over thousands of machines with just a few keystrokes. This greatly reduces the time required to develop distributed data analysis pipelines. The platform is built upon industry-standard, open-source Big Data technologies, from which it inherits fast data throughput and fault tolerance. StratOS enhances these technologies by adding an intuitive user interface, automated task monitoring, and other usability features.

  17. Big Bang Day: 5 Particles - 3. The Anti-particle

    ScienceCinema (OSTI)

    None

    2011-04-25

    Simon Singh looks at the stories behind the discovery of 5 of the universe's most significant subatomic particles: the Electron, the Quark, the Anti-particle, the Neutrino and the "next particle". 3. The Anti-particle. It appears to be the stuff of science fiction. Associated with every elementary particle is an antiparticle which has the same mass and opposite charge. Should the two meet and combine, the result is annihilation - and a flash of light. Thanks to mysterious processes that occurred after the Big Bang there are a vastly greater number of particles than anti-particles. So how could their elusive existence be proved? At CERN particle physicists are crashing together subatomic particles at incredibly high speeds to create antimatter, which they hope will finally reveal what happened at the precise moment of the Big Bang to create the repertoire of elementary particles and antiparticles in existence today.

  18. Big-Bang Nucleosynthesis verifies classical Maxwell-Boltzmann distribution

    E-Print Network [OSTI]

    S. Q. Hou; J. J. He; A. Parikh; K. Daid; C. Bertulani

    2014-08-15

    We provide the most stringent constraint to date on possible deviations from the usually-assumed Maxwell-Boltzmann (MB) velocity distribution for nuclei in the Big-Bang plasma. The impact of non-extensive Tsallis statistics on thermonuclear reaction rates involved in standard models of Big-Bang Nucleosynthesis (BBN) has been investigated. We find that the non-extensive parameter $q$ may deviate by, at most, $|\\delta q|$=6$\\times$10$^{-4}$ from unity for BBN predictions to be consistent with observed primordial abundances; $q$=1 represents the classical Boltzmann-Gibbs statistics. This constraint arises primarily from the {\\em super}sensitivity of endothermic rates on the value of $q$, which is found for the first time. As such, the implications of non-extensive statistics in other astrophysical environments should be explored. This may offer new insight into the nucleosynthesis of heavy elements.

  19. Big data for ecologists: Highlighting the ORNL DAAC

    SciTech Connect (OSTI)

    Boyer, Alison G [ORNL] [ORNL; Cook, Robert B [ORNL] [ORNL; Devarakonda, Ranjeet [ORNL] [ORNL; Eby, Pete I [ORNL] [ORNL; Thornton, Michele M [ORNL] [ORNL; Thornton, Peter E [ORNL] [ORNL; SanthanaVannan, Suresh K [ORNL] [ORNL; Virdi, Makhan L [ORNL] [ORNL; Wei, Yaxing [ORNL] [ORNL

    2014-01-01

    Ecologists are increasingly confronted by questions that can be addressed only by integrating data from numerous sources, often across large geographic areas and broad time periods. The supply of ecological big data is increasing at a rapid pace as researchers are publishing their data sets and large, public science and data infrastructures (such as NEON, DataONE, LTER, & NCEAS) are producing and curating extensive volumes of complex data and metadata. While supply of, and demand for, ecological data is on the rise, many ecologists now face a new challenge in locating and synthesizing the data relevant for their particular question. Here we highlight selected popular big data products applicable to ecological research available from the NASA Distributed Active Archive Center (DAAC) located at Oak Ridge National Laboratory (ORNL).

  20. Quantization of Big Bang in crypto-Hermitian Heisenberg picture

    E-Print Network [OSTI]

    Znojil, Miloslav

    2015-01-01

    A background-independent quantization of the Universe near its Big Bang singularity is considered using a drastically simplified toy model. Several conceptual issues are addressed. (1) The observable spatial-geometry characteristics of our empty-space expanding Universe is sampled by the time-dependent operator $Q=Q(t)$ of the distance between two space-attached observers (``Alice and Bob''). (2) For any pre-selected guess of the simple, non-covariant time-dependent observable $Q(t)$ one of the Kato's exceptional points (viz., $t=\\tau_{(EP)}$) is postulated {\\em real-valued}. This enables us to treat it as the time of Big Bang. (3) During our ``Eon'' (i.e., at all $t>\\tau_{(EP)}$) the observability status of operator $Q(t)$ is mathematically guaranteed by its self-adjoint nature with respect to an {\\em ad hoc} Hilbert-space metric $\\Theta(t) \

  1. BIG BANG NUCLEOSYNTHESIS WITH A NON-MAXWELLIAN DISTRIBUTION

    SciTech Connect (OSTI)

    Bertulani, C. A. [GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt (Germany)] [GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt (Germany); Fuqua, J. [Texas A and M University-Commerce, Commerce, TX 75429-3011 (United States)] [Texas A and M University-Commerce, Commerce, TX 75429-3011 (United States); Hussein, M. S. [Instituto de Estudos Avancados, Universidade de Sao Paulo, C.P. 72.012, 05508-970 Sao Paulo (Brazil)] [Instituto de Estudos Avancados, Universidade de Sao Paulo, C.P. 72.012, 05508-970 Sao Paulo (Brazil)

    2013-04-10

    The abundances of light elements based on the big bang nucleosynthesis model are calculated using the Tsallis non-extensive statistics. The impact of the variation of the non-extensive parameter q from the unity value is compared to observations and to the abundance yields from the standard big bang model. We find large differences between the reaction rates and the abundance of light elements calculated with the extensive and the non-extensive statistics. We found that the observations are consistent with a non-extensive parameter q = 1{sub -} {sub 0.12}{sup +0.05}, indicating that a large deviation from the Boltzmann-Gibbs statistics (q = 1) is highly unlikely.

  2. Electron screening and its effects on big-bang nucleosynthesis

    SciTech Connect (OSTI)

    Wang Biao; Bertulani, C. A.; Balantekin, A. B. [Department of Physics, Texas A and M University, Commerce, Texas 75429 (United States); Physics Department, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706 (United States)

    2011-01-15

    We study the effects of electron screening on nuclear reaction rates occurring during the big-bang nucleosynthesis epoch. The sensitivity of the predicted elemental abundances on electron screening is studied in detail. It is shown that electron screening does not produce noticeable results in the abundances unless the traditional Debye-Hueckel model for the treatment of electron screening in stellar environments is enhanced by several orders of magnitude. This work rules out electron screening as a relevant ingredient to big-bang nucleosynthesis, confirming a previous study [see Itoh et al., Astrophys. J. 488, 507 (1997)] and ruling out exotic possibilities for the treatment of screening beyond the mean-field theoretical approach.

  3. High Spectral Resolution Infrared and Raman Lidar Observations for the ARM Program: Clear and Cloudy Sky Applications

    SciTech Connect (OSTI)

    Henry Revercomb, David Tobin, Robert Knuteson, Lori Borg, Leslie Moy

    2009-06-17

    This grant began with the development of the Atmospheric Emitted Radiance Interferometer (AERI) for ARM. The AERI has provided highly accurate and reliable observations of downwelling spectral radiance (Knuteson et al. 2004a, 2004b) for application to radiative transfer, remote sensing of boundary layer temperature and water vapor, and cloud characterization. One of the major contributions of the ARM program has been its success in improving radiation calculation capabilities for models and remote sensing that evolved from the multi-year, clear-sky spectral radiance comparisons between AERI radiances and line-by-line calculations (Turner et al. 2004). This effort also spurred us to play a central role in improving the accuracy of water vapor measurements, again helping ARM lead the way in the community (Turner et al. 2003a, Revercomb et al. 2003). In order to add high-altitude downlooking AERI-like observations over the ARM sites, we began the development of an airborne AERI instrument that has become known as the Scanning High-resolution Interferometer Sounder (Scanning-HIS). This instrument has become an integral part of the ARM Unmanned Aerospace Vehicle (ARM-UAV) program. It provides both a cross-track mapping view of the earth and an uplooking view from the 12-15 km altitude of the Scaled Composites Proteus aircraft when flown over the ARM sites for IOPs. It has successfully participated in the first two legs of the “grand tour” of the ARM sites (SGP and NSA), resulting in a very good comparison with AIRS observations in 2002 and in an especially interesting data set from the arctic during the Mixed-Phase Cloud Experiment (M-PACE) in 2004. More specifically, our major achievements for ARM include 1. Development of the Atmospheric Emitted Radiance Interferometer (AERI) to function like a satellite on the ground for ARM, providing a steady stream of accurately calibrated spectral radiances for Science Team clear sky and cloud applications (Knuteson et al. 2004a), 2. Detailed radiometric calibration and characterization of AERI radiances, with uncertainty estimates established from complete error analyses and proven by inter-comparison tests (Knuteson et al. 2004b), 3. AERI data quality assessment and maintenance over the extended time frames needed to support ARM (Dedecker et al., 2005) 4. Key role in the radiative transfer model improvements from the AERI/LBLRTM QME (Turner et al. 2004) and AERI-ER especially from the SHEBA experiment (Tobin et al. 1999), 5. Contributed scientific and programmatic leadership leading to significant water vapor accuracy improvements and uncertainty assessments for the low to mid troposphere (Turner et al. 2003a, Revercomb et al. 2003), 6. Leadership of the ARM assessment of the accuracy of water vapor observations from radiosondes, Raman Lidar and in situ aircraft observations in the upper troposphere and lower stratosphere (Tobin et al. 2002, Ferrare et al. 2004), 7. New techniques for characterizing clouds from AERI (DeSlover et al. 1999, Turner 2003b, Turner et al. 2003b), 8. Initial design and development of the Scanning-HIS aircraft instrument and application to ARM UAV Program missions (Revercomb et al. 2005), and 9. Coordinated efforts leading to the use of ARM observations as a key validation tool for the high resolution Atmospheric IR Sounder on the NASA Aqua platform (Tobin et al. 2005a) 10. Performed ARM site and global clear sky radiative closure studies that shows closure of top-of-atmosphere flux at the level of ~1 W/m2 (Moy et al 2008 and Section 3 of this appendix) 11. Performed studies to characterize SGP site cirrus cloud property retrievals and assess impacts on computed fluxes and heating rate profiles (Borg et al. 2008 and Section 2 of this appendix).

  4. Brawny Wimpy Brawny Investigates the efficiency of executing Big Data

    E-Print Network [OSTI]

    Teo, Yong-Meng

    Preliminary Results 4 Big Data is everywhere NVIDIA GPUs become energy-efficient Efficiency Execution time Energy - Performance-to-power Ratio (PPR) - Energy-delay Product (EDP) Approach Summary5 GPU Technology Frequency 1.60 - 3.40 GHz 0.05 - 1.40 GHz Cache 32kB L1, 256kB L2, 8MB L3 32kB L1, 1MB L2 Memory 8GB DDR3 2

  5. Possible evidence for "dark radiation" from Big Bang Nucleosynthesis Data

    E-Print Network [OSTI]

    V. V. Flambaum; E. V. Shuryak

    2006-02-06

    We address the emerging discrepancy between the Big Bang Nucleosynthesis data and standard cosmology, which asks for a bit longer evolution time. If this effect is real, one possible implication (in a framework of brane cosmology model) is that there is a ``dark radiation'' component which is negative and makes few percents of ordinary matter density. If so, all scales of this model can be fixed, provided brane-to-bulk leakage problem is solved.

  6. Supernova bangs as a tool to study big bang

    SciTech Connect (OSTI)

    Blinnikov, S. I., E-mail: Sergei.Blinnikov@itep.ru [Institute for Theoretical and Experimental Physics (Russian Federation)

    2012-09-15

    Supernovae and gamma-ray bursts are the most powerful explosions in observed Universe. This educational review tells about supernovae and their applications in cosmology. It is explained how to understand the production of light in the most luminous events with minimum required energy of explosion. These most luminous phenomena can serve as primary cosmological distance indicators. Comparing the observed distance dependence on red shift with theoretical models one can extract information on evolution of the Universe from Big Bang until our epoch.

  7. Constraints on massive gravity theory from big bang nucleosynthesis

    SciTech Connect (OSTI)

    Lambiase, G., E-mail: lambiase@sa.infn.it [Dipartimento di Fisica 'E. R.Caianiello', Università di Salerno, 84081 Baronissi (Italy)

    2012-10-01

    The massive gravity cosmology is studied in the scenario of big bang nucleosynthesis. By making use of current bounds on the deviation from the fractional mass, we derive the constraints on the free parameters of the theory. The cosmological consequences of the model are also analyzed in the framework of the PAMELA experiment, i.e. an excess of positron events, that the conventional cosmology and particle physics cannot explain.

  8. Constraining Big Bang lithium production with recent solar neutrino data

    E-Print Network [OSTI]

    Takács, Marcell P; Szücs, Tamás; Zuber, Kai

    2015-01-01

    The 3He({\\alpha},{\\gamma})7Be reaction affects not only the production of 7Li in Big Bang nucleosynthesis, but also the fluxes of 7Be and 8B neutrinos from the Sun. This double role is exploited here to constrain the former by the latter. A number of recent experiments on 3He({\\alpha},{\\gamma})7Be provide precise cross section data at E = 0.5-1.0 MeV center-of-mass energy. However, there is a scarcity of precise data at Big Bang energies, 0.1-0.5 MeV, and below. This problem can be alleviated, based on precisely calibrated 7Be and 8B neutrino fluxes from the Sun that are now available, assuming the neutrino flavour oscillation framework to be correct. These fluxes and the standard solar model are used here to determine the 3He(alpha,gamma)7Be astrophysical S-factor at the solar Gamow peak, S(23+6-5 keV) = 0.548+/-0.054 keVb. This new data point is then included in a re-evaluation of the 3He({\\alpha},{\\gamma})7Be S-factor at Big Bang energies, following an approach recently developed for this reaction in the c...

  9. INTEGRAL high energy sky: The keV to MeV cosmic sources

    E-Print Network [OSTI]

    P. Ubertini; A. De Rosa; A. Bazzano; L. Bassani; V. Sguera

    2008-02-03

    After almost 5 years of operation, ESA's International Gamma-Ray Astrophysics Laboratory (INTEGRAL) Space Observatory has unveiled a new soft Gamma ray sky and produced a remarkable harvest of results, ranging from identification of new high energy sources, to the discovery of dozens of variable sources to the mapping of the Aluminum emission from the Galaxy Plane to the presence of electrons and positrons generating the annihilation line in the Galaxy central radian. INTEGRAL is continuing the deep observations of the Galactic Plane and of the whole sky in the soft Gamma ray range. The new IBIS gamma ray catalogue contains more than 420 sources detected above 20 keV. We present a view of the INTEGRAL high energy sky with particular regard to sources emitting at high energy, including Active Galactic Nuclei (AGN), HESS/MAGIC counterparts and new view of the cosmic gamma ray diffuse background.

  10. A Robotic Wide-Angle H-Alpha Survey of the Southern Sky

    E-Print Network [OSTI]

    J. E. Gaustad; P. R. McCullough; W. Rosing; D. Van Buren

    2001-08-31

    We have completed a robotic wide-angle imaging survey of the southern sky (declination less than +15 degrees) at 656.3 nm wavelength, the H-alpha emission line of hydrogen. Each image of the resulting Southern H-Alpha Sky Survey Atlas (SHASSA) covers an area of the sky 13 degrees square at an angular resolution of approximately 0.8 arcminute, and reaches a sensitivity level of 2 rayleigh (1.2 x 10^-17 erg cm^-2 s^-1 arcsec^-2) per pixel, corresponding to an emission measure of 4 cm^-6 pc, and to a brightness temperature for microwave free-free emission of 12 microkelvins at 30 GHz. Smoothing over several pixels allows features as faint as 0.5 rayleigh to be detected.

  11. Testing foundations of modern cosmology with SKA all-sky surveys

    E-Print Network [OSTI]

    Dominik J. Schwarz; David Bacon; Song Chen; Chris Clarkson; Dragan Huterer; Martin Kunz; Roy Maartens; Alvise Raccanelli; Matthias Rubart; Jean-Luc Starck

    2015-01-15

    Continuum and HI surveys with the Square Kilometre Array (SKA) will allow us to probe some of the most fundamental assumptions of modern cosmology, including the Cosmological Principle. SKA all-sky surveys will map an enormous slice of space-time and reveal cosmology at superhorizon scales and redshifts of order unity. We illustrate the potential of these surveys and discuss the prospects to measure the cosmic radio dipole at high fidelity. We outline several potentially transformational tests of cosmology to be carried out by means of SKA all-sky surveys.

  12. Testing foundations of modern cosmology with SKA all-sky surveys

    E-Print Network [OSTI]

    Schwarz, Dominik J; Chen, Song; Clarkson, Chris; Huterer, Dragan; Kunz, Martin; Maartens, Roy; Raccanelli, Alvise; Rubart, Matthias; Starck, Jean-Luc

    2015-01-01

    Continuum and HI surveys with the Square Kilometre Array (SKA) will allow us to probe some of the most fundamental assumptions of modern cosmology, including the Cosmological Principle. SKA all-sky surveys will map an enormous slice of space-time and reveal cosmology at superhorizon scales and redshifts of order unity. We illustrate the potential of these surveys and discuss the prospects to measure the cosmic radio dipole at high fidelity. We outline several potentially transformational tests of cosmology to be carried out by means of SKA all-sky surveys.

  13. Big Stone County, Minnesota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)Daddy s BiodieselSky,

  14. Geospatial Big Data Handling Theory and Methods: A Review and Research Challenges

    E-Print Network [OSTI]

    Li, S; Anton, F; Sester, M; Winter, S; Coltekin, A; Pettit, C; Jiang, B; Haworth, J; Stein, A; Cheng, T

    2015-01-01

    Big data has now become a strong focus of global interest that is increasingly attracting the attention of academia, industry, government and other organizations. Big data can be situated in the disciplinary area of traditional geospatial data handling theory and methods. The increasing volume and varying format of collected geospatial big data presents challenges in storing, managing, processing, analyzing, visualizing and verifying the quality of data. This has implications for the quality of decisions made with big data. Consequently, this position paper of the International Society for Photogrammetry and Remote Sensing (ISPRS) Technical Commission II (TC II) revisits the existing geospatial data handling methods and theories to determine if they are still capable of handling emerging geospatial big data. Further, the paper synthesises problems, major issues and challenges with current developments as well as recommending what needs to be developed further in the near future. Keywords: Big data, Geospatial...

  15. C-CAMP BIRAC-BIG 1st CALL ENTREPRENEUR VALEDICTORY MENTORING PROGRAMME

    E-Print Network [OSTI]

    Bhalla, Upinder S.

    .05: Introductions 7.05 ­ 7.35: 5 minute Presentations by BIG Grantees o Achira Labs o Codon Biosciences o Pandorum.30 ­ 1.00 pm: Presentations by BIG Grantees 15 mins each followed by 15 mins of interactions Scientific.30: Vikas Mehra 12.30 ­ 1.00: Sea6 Energy 1.00 ­ 2.00: Lunch 2.00 ­ 3.30: Presentations by BIG Grantees (con

  16. RE-SCHEDULED FROM JAN 22 TO JAN 28 - COLLOQUIUM: Addressing Big...

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

    Colloquia MBG Auditorium RE-SCHEDULED FROM JAN 22 TO JAN 28 - COLLOQUIUM: Addressing Big Data Challenges in Simulation-based Science Professor Manish Parashar Rutgers...

  17. A Simple/Short Introduction to Pre-Big-Bang Physics/Cosmology

    E-Print Network [OSTI]

    G. Veneziano

    1998-03-02

    A simple, non-technical introduction to the pre-big bang scenario is given, emphasizing physical motivations, considerations, and consequences over formalism.

  18. Science DMZ-Based Big-Science Pacific Research Platform Debuts...

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

    Science DMZ-Based Big-Science Pacific Research Platform Debuts at CENIC 2015 Annual Conference News & Publications ESnet News Media & Press Publications and Presentations Galleries...

  19. Big & Small Ideas: How to Lower Costs of Project Finance to achieve...

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

    ssgrandchallengefinancearfin.pdf More Documents & Publications Finance Idol Word Cloud Developing Big and Small Ideas: How Can We Lower the Costs of Project Finance to...

  20. Fire in the sky: The southern lights in Indigenous oral traditions

    E-Print Network [OSTI]

    Hamacher, Duane W

    2015-01-01

    Parts of Australia have been privileged to see dazzling lights in the night sky as the Aurora Australis (known as the southern lights) puts on a show this year. Aurorae are significant in Australian Indigenous astronomical traditions. Aboriginal people associate aurorae with fire, death, blood, and omens, sharing many similarities with Native American communities.

  1. SkyHunter: A Multi-Surface Environment for Supporting Oil and Gas Exploration

    E-Print Network [OSTI]

    Maurer, Frank

    SkyHunter: A Multi-Surface Environment for Supporting Oil and Gas Exploration Teddy Seyed, Mario}@ucalgary.ca ABSTRACT The process of oil and gas exploration and its result, the decision to drill for oil in a specific show in this paper, many of the existing technologies and practices that support the oil and gas

  2. The Animated Gamma-ray Sky Revealed by the Fermi Gamma-ray Space Telescope

    ScienceCinema (OSTI)

    Isabelle Grenier

    2010-01-08

    The Fermi Gamma-ray Space Telescope has been observing the sky in gamma-rays since August 2008.  In addition to breakthrough capabilities in energy coverage (20 MeV-300 GeV) and angular resolution, the wide field of view of the Large Area Telescope enables observations of 20% of the sky at any instant, and of the whole sky every three hours. It has revealed a very animated sky with bright gamma-ray bursts flashing and vanishing in minutes, powerful active galactic nuclei flaring over hours and days, many pulsars twinkling in the Milky Way, and X-ray binaries shimmering along their orbit. Most of these variable sources had not been seen by the Fermi predecessor, EGRET, and the wealth of new data already brings important clues to the origin of the high-energy emission and particles powered by the compact objects. The telescope also brings crisp images of the bright gamma-ray emission produced by cosmic-ray interactions in the interstellar medium, thus allowing to measure the cosmic nuclei and electron spectra across the Galaxy, to weigh interstellar clouds, in particular in the dark-gas phase. The telescope sensitivity at high energy will soon provide useful constraints on dark-matter annihilations in a variety of environments. I will review the current results and future prospects of the Fermi mission.

  3. WAHRSIS: A Low-cost, High-resolution Whole Sky Imager With Near-Infrared Capabilities

    E-Print Network [OSTI]

    Winkler, Stefan

    community for a variety of applications and domains, such as aviation, weather prediction, and solar energy Dev,a Florian M. Savoy,b Yee Hui Lee,a Stefan Winklerb aSchool of Electrical and Electronic of automatic whole sky imagers have been developed at the Scripps Institute of Oceanography, University

  4. Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data

    E-Print Network [OSTI]

    Barsotti, Lisa

    This paper presents results of an all-sky search for periodic gravitational waves in the frequency range [50,1?190]??Hz and with frequency derivative range of ?[-20,1.1]×10[superscript -10]??Hz?s[superscript -1] for the ...

  5. Contributions of artificial lighting sources on light pollution in Hong Kong measured through a night sky brightness monitoring network

    E-Print Network [OSTI]

    Pun, Chun Shing Jason; Leung, Wai Yan; Wong, Chung Fai

    2014-01-01

    Light pollution is a form of environmental degradation in which excessive artificial outdoor lighting, such as street lamps, neon signs, and illuminated signboards, affects the natural environment and the ecosystem. Poorly designed outdoor lighting not only wastes energy, money, and valuable Earth resources, but also robs us of our beautiful night sky. Effects of light pollution on the night sky can be evaluated by the skyglow caused by these artificial lighting sources, through measurements of the night sky brightness (NSB). The Hong Kong Night Sky Brightness Monitoring Network (NSN) was established to monitor in detail the conditions of light pollution in Hong Kong. Monitoring stations were set up throughout the city covering a wide range of urban and rural settings to continuously measure the variations of the NSB. Over 4.6 million night sky measurements were collected from 18 distinct locations between May 2010 and March 2013. This huge dataset, over two thousand times larger than our previous survey, for...

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

    SciTech Connect (OSTI)

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

    2006-07-01

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

  7. EIS-0315: Caithness Big Sandy Project, Wikieup, AZ

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's decision to approve Big Sandy Energy to interconnect a proposed 720-MW generating facility near Wikieup, Ariz., with the Mead-Phoenix Project 500-kV transmission line. The powerplant plan includes a proposed high-pressure natural gas pipeline, permanent access road and water pipelines that would cross BLM-administered land. Because the project could 'significantly affect the quality of the human environment,' studies must be done to identify environmental effects. WAPA is partnering with the Bureau of Land Management in Kingman on this project. BLM and Western have delayed issuing the Supplemental Draft EIS at the request of the applicant, Caithness Energy."

  8. Tachyon cosmology, supernovae data and the Big Brake singularity

    E-Print Network [OSTI]

    Z. Keresztes; L. Á. Gergely; V. Gorini; U. Moschella; A. Yu. Kamenshchik

    2009-04-21

    We compare the existing observational data on type Ia Supernovae with the evolutions of the universe predicted by a one-parameter family of tachyon models which we have introduced recently in paper \\cite{we-tach}. Among the set of the trajectories of the model which are compatible with the data there is a consistent subset for which the universe ends up in a new type of soft cosmological singularity dubbed Big Brake. This opens up yet another scenario for the future history of the universe besides the one predicted by the standard $\\Lambda$CDM model.

  9. Quantum support vector machine for big data classification

    E-Print Network [OSTI]

    Patrick Rebentrost; Masoud Mohseni; Seth Lloyd

    2014-07-10

    Supervised machine learning is the classification of new data based on already classified training examples. In this work, we show that the support vector machine, an optimized binary classifier, can be implemented on a quantum computer, with complexity logarithmic in the size of the vectors and the number of training examples. In cases when classical sampling algorithms require polynomial time, an exponential speed-up is obtained. At the core of this quantum big data algorithm is a non-sparse matrix exponentiation technique for efficiently performing a matrix inversion of the training data inner-product (kernel) matrix.

  10. Constraints on Light Dark Matter from Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Brian Henning; Hitoshi Murayama

    2012-05-29

    We examine the effects of relic dark matter annihilations on big bang nucleosynthesis (BBN). The magnitude of these effects have scale simply with the dark matter mass and annihilation cross-section, which we derive. Estimates based on these scaling behaviors indicate that BBN severely constrains hadronic and radiative dark matter annihilation channels in the previously unconsidered dark matter mass region MeV $\\lesssim m_{\\chi} \\lesssim 10$ GeV. Interestingly, we find that BBN constraints on hadronic annihilation channels are competitive with similar bounds derived from the cosmic microwave background.

  11. Big bang nucleosynthesis as a probe of fundamental "constants"

    E-Print Network [OSTI]

    Thomas Dent; Steffen Stern

    2007-10-25

    Big Bang nucleosynthesis (BBN) is the earliest sensitive probe of the values of many fundamental particle physics parameters. We have found the leading linear dependences of primordial abundances on all relevant parameters of the standard BBN code, including binding energies and nuclear reaction rates. This enables us to set limits on possible variations of fundamental parameters. We find that 7Li is expected to be significantly more sensitive than other species to many fundamental parameters, a result which also holds for variations of coupling strengths in grand unified (GUT) models. Our work also indicates which areas of nuclear theory need further development if the values of ``constants'' are to be more accurately probed.

  12. Nonprofits create big economic impact in northern New Mexico

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolarNew scholarshipThreeFebruary 2015NikkiBig

  13. BIG SUN Energy Technology Incorporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex AAustria Geothermal RegionAvraPáginasSolarBBBFCLands |BIG SUN

  14. Big Flats, Wisconsin: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)Daddy s Biodiesel Inc JumpBig Flats,

  15. Big Horn County, Montana: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece)Daddy s Biodiesel Inc JumpBig

  16. Big Bend Hot Springs Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake, California:Big Bend

  17. Big Horn Rural Electric Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake,GeysersBig Horn

  18. Big Horn Wind Power Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake,GeysersBig HornWind

  19. Big Rapids, Michigan: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake,GeysersBig

  20. Big River, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColoradoBelcher HomesBeverly,Lake,GeysersBigRiver,

  1. Big Green Bus: A Vehicle for Change | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy|| Department ofBuildings,Beverly RamseyThe Big

  2. Laboratory's Season of Giving was a big success

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and masthead BerkeleySiteSeason of Giving big

  3. Big Savings on Outdoor Lighting | 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: Alternative Fuels DataEnergy Webinar:I DueBETO Quiz -Technologies forBig Savings on Outdoor

  4. Big Entropy Fluctuations in Statistical Equilibrium: The Macroscopic Kinetics

    E-Print Network [OSTI]

    B. V. Chirikov; O. V. Zhirov

    2000-10-31

    Large entropy fluctuations in an equilibrium steady state of classical mechanics were studied in extensive numerical experiments on a simple 2--freedom strongly chaotic Hamiltonian model described by the modified Arnold cat map. The rise and fall of a large separated fluctuation was shown to be described by the (regular and stable) "macroscopic" kinetics both fast (ballistic) and slow (diffusive). We abandoned a vague problem of "appropriate" initial conditions by observing (in a long run)spontaneous birth and death of arbitrarily big fluctuations for any initial state of our dynamical model. Statistics of the infinite chain of fluctuations, reminiscent to the Poincar\\'e recurrences, was shown to be Poissonian. A simple empirical relation for the mean period between the fluctuations (Poincar\\'e "cycle") has been found and confirmed in numerical experiments. A new representation of the entropy via the variance of only a few trajectories ("particles") is proposed which greatly facilitates the computation, being at the same time fairly accurate for big fluctuations. The relation of our results to a long standing debates over statistical "irreversibility" and the "time arrow" is briefly discussed too.

  5. Primordial Lithium Abundance in Catalyzed Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Chris Bird; Kristen Koopmans; Maxim Pospelov

    2008-05-19

    There exists a well known problem with the Li7+Be7 abundance predicted by standard big bang nucleosynthesis being larger than the value observed in population II stars. The catalysis of big bang nucleosynthesis by metastable, \\tau_X \\ge 10^3 sec, charged particles X^- is capable of suppressing the primordial Li7+Be7, abundance and making it consistent with the observations. We show that to produce the correct abundance, this mechanism of suppression places a requirement on the initial abundance of X^- at temperatures of 4\\times 10^8 K to be on the order of or larger than 0.02 per baryon, which is within the natural range of abundances in models with metastable electroweak-scale particles. The suppression of Li7+Be7, is triggered by the formation of (Be7X^-), compound nuclei, with fast depletion of their abundances by catalyzed proton reactions, and in some models by direct capture of X^- on Be7. The combination of Li7+Be7 and Li6 constraints favours the window of lifetimes, 1000s \\la tau_X \\leq 2000 s.

  6. EA-1418: Final Environmental Assessment

    Broader source: Energy.gov [DOE]

    Otter Tail Power Company Advanced Hybrid Particulate Collector, Big Stone City, Grant County, South Dakota

  7. HoustonChronicle.com -Tiny honor a big deal for algae scientist HoustonChronicle.

    E-Print Network [OSTI]

    Jeong, Hae Jin

    HoustonChronicle.com - Tiny honor a big deal for algae scientist HoustonChronicle. com Section-mail this story June 18, 2005, 5:48PM Tiny honor a big deal for algae scientist By DAVID A. FAHRENTHOLD Washington Post Sometimes, algae can be the highest form of flattery. ADVERTISEMENTSo it was for Diane K. Stoecker

  8. Yale's Environment School Power Plants Big Influence in Regional Mercury Emissions Introduction Knowledge

    E-Print Network [OSTI]

    Lee, Xuhui

    Yale's Environment School · Power Plants Big Influence in Regional Mercury Emissions Introduction Power Plants Big Influence in Regional Mercury Emissions Related Topics: News Releases; Publications winters and a correspondent decrease in the need for regional power plants to burn coal could partially

  9. Beyond Myopic Inference in Big Data Pipelines Karthik Raman, Adith Swaminathan, Johannes Gehrke, Thorsten Joachims

    E-Print Network [OSTI]

    Joachims, Thorsten

    Beyond Myopic Inference in Big Data Pipelines Karthik Raman, Adith Swaminathan, Johannes Gehrke,adith,johannes,tj}@cs.cornell.edu ABSTRACT Big Data Pipelines decompose complex analyses of large data sets into a series of simpler tasks different pipelines. However, the interaction of independently tuned pipeline components yields poor end

  10. Why Statistics? POPULAR MEDIA AND SCIENCE PUBLICATIONS SOUND THE DRUM: "BIG DATA" WILL DRIVE OUR

    E-Print Network [OSTI]

    Capecchi, Mario R.

    Why Statistics? POPULAR MEDIA AND SCIENCE PUBLICATIONS SOUND THE DRUM: "BIG DATA" WILL DRIVE OUR isolates true associations with illnesses and deaths. Big Data payoffs can be enormous, but there are many of learning from data, and of measuring, controlling, and communicating uncertainty; and it thereby provides

  11. DEALING WITH DATA-POOR FISHERIES: A CASE STUDY OF THE BIG SKATE (RAJA BINOCULATA) IN

    E-Print Network [OSTI]

    DEALING WITH DATA-POOR FISHERIES: A CASE STUDY OF THE BIG SKATE (RAJA BINOCULATA) IN BRITISH: Master of Resource Management Project No.: 522 Title of Thesis: Dealing with data-poor fisheries: A case study of the big skate (Raja binoculata) in British Columbia's groundfish fishery Examining Committee

  12. Dr. Shih-Lung Shaw's Research on Space-Time GIS, Human Dynamics and Big Data

    E-Print Network [OSTI]

    Grissino-Mayer, Henri D.

    1 Dr. Shih-Lung Shaw's Research on Space-Time GIS, Human Dynamics and Big Data for Geography dynamics and big data. We have developed spatiotemporal data models, analysis functions, and visualization. In the meantime, detailed data of individual activities and interactions are being collected by vendors (e

  13. BIG DATA SYSTEMS AT THE ARM ARCHIVE I: INTERACTIVE VISUALIZATION OPPORTUNITIES

    E-Print Network [OSTI]

    BIG DATA SYSTEMS AT THE ARM ARCHIVE I: INTERACTIVE VISUALIZATION OPPORTUNITIES Giri Palanisamy, Oak instrumentation (e.g., scanning radars and lidars). As part of the "Big Data System" (BDS) design, the ARM Archive that will be dedicated to visualization and software development based on the very large data volumes from new ARM

  14. Geographically-Distributed Databases: A Big Data Technology for Production Analysis in the Oil & Gas Industry

    E-Print Network [OSTI]

    SPE 167844 Geographically-Distributed Databases: A Big Data Technology for Production Analysis advances in the scientific field of "big-data" to the world of Oil & Gas upstream industry. These off-of-the-start IT technologies currently employed in the data management of Oil & Gas production operations. Most current

  15. A Big World Inside Small-World Networks Zhihua Zhang, Jianzhi Zhang*

    E-Print Network [OSTI]

    Zhang, Jianzhi

    A Big World Inside Small-World Networks Zhihua Zhang, Jianzhi Zhang* Department of Ecology networks, including biological networks, are known to have the small-world property, characterized: Zhang Z, Zhang J (2009) A Big World Inside Small-World Networks. PLoS ONE 4(5): e5686. doi:10

  16. Frequent Itemset Mining for Big Data Sandy Moens, Emin Aksehirli and Bart Goethals

    E-Print Network [OSTI]

    Antwerpen, Universiteit

    Antwerpen, Belgium Email: firstname.lastname@uantwerpen.be Abstract--Frequent Itemset Mining (FIM) is oneFrequent Itemset Mining for Big Data Sandy Moens, Emin Aksehirli and Bart Goethals Universiteit new methods for mining large datasets: Dist-Eclat focuses on speed while BigFIM is optimized to run

  17. Big Bear Solar Observatory -New Jersey Institute of Technology 2005 Greetings

    E-Print Network [OSTI]

    Big Bear Solar Observatory - New Jersey Institute of Technology 2005 Greetings The Center for Solar-Terrestrial Reasearch (CSTR) at New Jersey Institute of Technology operates Big Bear Solar Observatory (BBSO), which provides a unique and precise measure of the Earth's reflectance (a critical climate parameter since

  18. Technology Assessment TECHNOLOGY ASSESSMENT

    E-Print Network [OSTI]

    Rock, Chris

    Technology Assessment 10/14/2004 1 TECHNOLOGY ASSESSMENT STRATEGIC PLAN MISSION STATEMENT Support the Mission of Texas Tech University and the TTU Information Technology Division by providing timely and relevant information and assistance in current and emerging technologies and their practical applications

  19. Use and selection of highway bridges by Rafinesque’s big-eared bats in South Carolina

    E-Print Network [OSTI]

    Bennett, Frances M.

    2005-01-01

    s big-eared bats in South Carolina and also carried out anon all public roads in South Carolina. We surveyed 1,129s big-eared bats in the South Carolina Coastal Plain. Our

  20. Building Simulation Modelers are we big-data ready?

    SciTech Connect (OSTI)

    Sanyal, Jibonananda; New, Joshua Ryan

    2014-01-01

    Recent advances in computing and sensor technologies have pushed the amount of data we collect or generate to limits previously unheard of. Sub-minute resolution data from dozens of channels is becoming increasingly common and is expected to increase with the prevalence of non-intrusive load monitoring. Experts are running larger building simulation experiments and are faced with an increasingly complex data set to analyze and derive meaningful insight. This paper focuses on the data management challenges that building modeling experts may face in data collected from a large array of sensors, or generated from running a large number of building energy/performance simulations. The paper highlights the technical difficulties that were encountered and overcome in order to run 3.5 million EnergyPlus simulations on supercomputers and generating over 200 TBs of simulation output. This extreme case involved development of technologies and insights that will be beneficial to modelers in the immediate future. The paper discusses different database technologies (including relational databases, columnar storage, and schema-less Hadoop) in order to contrast the advantages and disadvantages of employing each for storage of EnergyPlus output. Scalability, analysis requirements, and the adaptability of these database technologies are discussed. Additionally, unique attributes of EnergyPlus output are highlighted which make data-entry non-trivial for multiple simulations. Practical experience regarding cost-effective strategies for big-data storage is provided. The paper also discusses network performance issues when transferring large amounts of data across a network to different computing devices. Practical issues involving lag, bandwidth, and methods for synchronizing or transferring logical portions of the data are presented. A cornerstone of big-data is its use for analytics; data is useless unless information can be meaningfully derived from it. In addition to technical aspects of managing big data, the paper details design of experiments in anticipation of large volumes of data. The cost of re-reading output into an analysis program is elaborated and analysis techniques that perform analysis in-situ with the simulations as they are run are discussed. The paper concludes with an example and elaboration of the tipping point where it becomes more expensive to store the output than re-running a set of simulations.

  1. Julia Gillard, Big Pharma, patent law and public health https://theconversation.edu.au/julia-gillard-big-pharma-patent-law-and-public-health-10226[28/11/2012 11:49:28 AM

    E-Print Network [OSTI]

    Botea, Adi

    Julia Gillard, Big Pharma, patent law and public health https://theconversation.edu.au/julia-gillard-big-pharma-patent Health + Medicine Politics + Society Science + Technology Julia Gillard, Big Pharma, patent law industry and their patents ­ and has launched several inquiries into patent law and pharmaceutical drugs

  2. Text-Alternative Version of Building America Webinar: Low-e Storms: The Next "Big Thing" in Window Retrofits

    Broader source: Energy.gov [DOE]

    Low-e Storms:  The Next “Big Thing” in Window RetrofitsOfficial Webinar Transcript (September 9, 2014)

  3. The LOFAR Multifrequency Snapshot Sky Survey (MSSS) I. Survey description and first results

    E-Print Network [OSTI]

    Heald, G H; Orrú, E; Breton, R P; Carbone, D; Ferrari, C; Hardcastle, M J; Jurusik, W; Macario, G; Mulcahy, D; Rafferty, D; Asgekar, A; Brentjens, M; Fallows, R A; Frieswijk, W; Toribio, M C; Adebahr, B; Arts, M; Bell, M R; Bonafede, A; Bray, J; Broderick, J; Cantwell, T; Carroll, P; Cendes, Y; Clarke, A O; Croston, J; Daiboo, S; de Gasperin, F; Gregson, J; Harwood, J; Hassall, T; Heesen, V; Horneffer, A; van der Horst, A J; Iacobelli, M; Jeli?, V; Jones, D; Kant, D; Kokotanekov, G; Martin, P; McKean, J P; Morabito, L K; Nikiel-Wroczy?ski, B; Offringa, A; Pandey, V N; Pandey-Pommier, M; Pietka, M; Pratley, L; Riseley, C; Rowlinson, A; Sabater, J; Scaife, A M M; Scheers, L H A; Sendlinger, K; Shulevski, A; Sipior, M; Sobey, C; Stewart, A J; Stroe, A; Swinbank, J; Tasse, C; Trüstedt, J; Varenius, E; van Velzen, S; Vilchez, N; van Weeren, R J; Wijnholds, S; Williams, W L; de Bruyn, A G; Nijboer, R; Wise, M; Alexov, A; Anderson, J; Avruch, I M; Beck, R; Bell, M E; van Bemmel, I; Bentum, M J; Bernardi, G; Best, P; Breitling, F; Brouw, W N; Brüggen, M; Butcher, H R; Ciardi, B; Conway, J E; de Geus, E; de Jong, A; de Vos, M; Deller, A; Dettmar, R J; Duscha, S; Eislöffel, J; Engels, D; Falcke, H; Fender, R; Garrett, M A; Grießmeier, J; Gunst, A W; Hamaker, J P; Hessels, J W T; Hoeft, M; Hörandel, J; Holties, H A; Intema, H; Jackson, N J; Jütte, E; Karastergiou, A; Klijn, W F A; Kondratiev, V I; Koopmans, L V E; Kuniyoshi, M; Kuper, G; Law, C; van Leeuwen, J; Loose, M; Maat, P; Markoff, S; McFadden, R; McKay-Bukowski, D; Mevius, M; Miller-Jones, J C A; Morganti, R; Munk, H; Nelles, A; Noordam, J E; Norden, M J; Paas, H; Polatidis, A G; Reich, W; Renting, A; Röttgering, H; Schoenmakers, A; Schwarz, D; Sluman, J; Smirnov, O; Stappers, B W; Steinmetz, M; Tagger, M; Tang, Y; ter Veen, S; Thoudam, S; Vermeulen, R; Vocks, C; Vogt, C; Wijers, R A M J; Wucknitz, O; Yatawatta, S; Zarka, P

    2015-01-01

    We present the Multifrequency Snapshot Sky Survey (MSSS), the first northern-sky LOFAR imaging survey. In this introductory paper, we first describe in detail the motivation and design of the survey. Compared to previous radio surveys, MSSS is exceptional due to its intrinsic multifrequency nature providing information about the spectral properties of the detected sources over more than two octaves (from 30 to 160 MHz). The broadband frequency coverage, together with the fast survey speed generated by LOFAR's multibeaming capabilities, make MSSS the first survey of the sort anticipated to be carried out with the forthcoming Square Kilometre Array (SKA). Two of the sixteen frequency bands included in the survey were chosen to exactly overlap the frequency coverage of large-area Very Large Array (VLA) and Giant Metrewave Radio Telescope (GMRT) surveys at 74 MHz and 151 MHz respectively. The survey performance is illustrated within the "MSSS Verification Field" (MVF), a region of 100 square degrees centered at J...

  4. Film vs. magnetic tape recording for IRLS AN/AAD-5 for open skies imaging

    SciTech Connect (OSTI)

    Kumar, V.; Saatzer, P.; Goede, W.

    1996-11-01

    The United States Government (USG) Full Operational Capability (FOC) Open Skies aircraft (OC-135) will be equipped with an Infrared Line Scanner AN/AAD-5, fully compliant with the treaty requirements. An extensive trade study is conducted to explore the possibility of switching from film recording to either analog or digital magnetic tape recording when the AAD-5 IRLS is flown in the Open Skies Aircraft. This paper presents preliminary trade study results and the overall conclusions and recommendations based on the analysis. A flight measurement program is now being carried out under the Follow On Sensor Evaluation Program (FOSEP) to evaluate the digital magnetic recording as compared to the film recording and the results of these fight measurement will be presented at a later date. 6 figs., 4 tabs.

  5. Anti-Proton Evolution in Little Bangs and Big Bang

    E-Print Network [OSTI]

    H. Schade; B. Kampfer

    2009-03-30

    The abundances of anti-protons and protons are considered within momentum-integrated Boltzmann equations describing Little Bangs, i.e., fireballs created in relativistic heavy-ion collisions. Despite of a large anti-proton annihilation cross section we find a small drop of the ratio of anti-protons to protons from 170 MeV (chemical freeze-out temperature) till 100 MeV (kinetic freeze-out temperature) for CERN-SPS and BNL-RHIC energies thus corroborating the solution of the previously exposed "ani-proton puzzle". In contrast, the Big Bang evolves so slowly that the anti-baryons are kept for a long time in equilibrium resulting in an exceedingly small fraction. The adiabatic path of cosmic matter in the phase diagram of strongly interacting matter is mapped out.

  6. Dark/visible parallel universes and Big Bang nucleosynthesis

    SciTech Connect (OSTI)

    Bertulani, C. A.; Frederico, T.; Fuqua, J.; Hussein, M. S.; Oliveira, O.; Paula, W. de [Department of Physics and Astronomy, Texas A and M University-Commerce, Commerce TX 75429 (United States); Departamento de Fisica, Instituto Tecnologico de Aeronautica, DCTA 12.228-900, Sao Jose dos Campos, SP (Brazil); Department of Physics and Astronomy, Texas A and M University-Commerce, Commerce TX 75429 (United States); Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05314-970 Sao Paulo, SP (Brazil); Departamento de Fisica, Instituto Tecnologico de Aeronautica, DCTA 12.228-900, Sao Jose dos Campos, SP, Brazil and Departamento de Fisica, Universidade de Coimbra, 3004-516 Coimbra (Portugal); Departamento de Fisica, Instituto Tecnologico de Aeronautica, DCTA 12.228-900, Sao Jose dos Campos, SP (Brazil)

    2012-11-20

    We develop a model for visible matter-dark matter interaction based on the exchange of a massive gray boson called herein the Mulato. Our model hinges on the assumption that all known particles in the visible matter have their counterparts in the dark matter. We postulate six families of particles five of which are dark. This leads to the unavoidable postulation of six parallel worlds, the visible one and five invisible worlds. A close study of big bang nucleosynthesis (BBN), baryon asymmetries, cosmic microwave background (CMB) bounds, galaxy dynamics, together with the Standard Model assumptions, help us to set a limit on the mass and width of the new gauge boson. Modification of the statistics underlying the kinetic energy distribution of particles during the BBN is also discussed. The changes in reaction rates during the BBN due to a departure from the Debye-Hueckel electron screening model is also investigated.

  7. Big bang nucleosynthesis revisited via Trojan Horse method measurements

    SciTech Connect (OSTI)

    Pizzone, R. G.; Spartá, R.; Spitaleri, C.; La Cognata, M.; Tumino, A. [INFN—Laboratori Nazionali del Sud, Via Santa Sofia 62, I-95123 Catania (Italy); Bertulani, C. A.; Lalmansingh, J. [Department of Physics and Astronomy, Texas A and M University, Commerce, TX 75025 (United States); Lamia, L. [Dipartimento di Fisica e Astronomia, Università degli Studi di Catania, Via Santa Sofia 64, I-95123 Catania (Italy); Mukhamedzhanov, A., E-mail: rgpizzone@lns.infn.it [Cyclotron Institute, Texas A and M University, College Station, TX 77843 (United States)

    2014-05-10

    Nuclear reaction rates are among the most important input for understanding primordial nucleosynthesis and, therefore, for a quantitative description of the early universe. An up-to-date compilation of direct cross-sections of {sup 2}H(d, p){sup 3}H, {sup 2}H(d, n){sup 3}He, {sup 7}Li(p, ?){sup 4}He, and {sup 3}He(d, p){sup 4}He reactions is given. These are among the most uncertain cross-sections used and input for big bang nucleosynthesis calculations. Their measurements through the Trojan Horse method are also reviewed and compared with direct data. The reaction rates and the corresponding recommended errors in this work were used as input for primordial nucleosynthesis calculations to evaluate their impact on the {sup 2}H, {sup 3,4}He, and {sup 7}Li primordial abundances, which are then compared with observations.

  8. Big Bang Nucleosynthesis with Independent Neutrino Distribution Functions

    E-Print Network [OSTI]

    Christel J. Smith; George M. Fuller; Michael S. Smith

    2008-12-06

    We have performed new Big Bang Nucleosynthesis calculations which employ arbitrarily-specified, time-dependent neutrino and antineutrino distribution functions for each of up to four neutrino flavors. We self-consistently couple these distributions to the thermodynamics, the expansion rate and scale factor-time/temperature relationship, as well as to all relevant weak, electromagnetic, and strong nuclear reaction processes in the early universe. With this approach, we can treat any scenario in which neutrino or antineutrino spectral distortion might arise. These scenarios might include, for example, decaying particles, active-sterile neutrino oscillations, and active-active neutrino oscillations in the presence of significant lepton numbers. Our calculations allow lepton numbers and sterile neutrinos to be constrained with observationally-determined primordial helium and deuterium abundances. We have modified a standard BBN code to perform these calculations and have made it available to the community.

  9. Big Data Visual Analytics for Exploratory Earth System Simulation Analysis

    SciTech Connect (OSTI)

    Steed, Chad A. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Ricciuto, Daniel M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shipman, Galen M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Smith, Brian E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Thornton, Peter E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wang, Dali [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shi, Xiaoying [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2013-12-01

    Rapid increases in high performance computing are feeding the development of larger and more complex data sets in climate research, which sets the stage for so-called big data analysis challenges. However, conventional climate analysis techniques are inadequate in dealing with the complexities of today s data. In this paper, we describe and demonstrate a visual analytics system, called the Exploratory Data analysis ENvironment (EDEN), with specific application to the analysis of complex earth system simulation data sets. EDEN represents the type of interactive visual analysis tools that are necessary to transform data into insight, thereby improving critical comprehension of earth system processes. In addition to providing an overview of EDEN, we describe real-world studies using both point ensembles and global Community Land Model Version 4 (CLM4) simulations.

  10. Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

    E-Print Network [OSTI]

    Haves, Philip

    2008-01-01

    +15% and +30% Lighting power density: -10% and - 20% Roofimprovements in lighting power density reflect the relativeSupply Fan Efficiency Lighting Power Density Roof Insulation

  11. Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

    E-Print Network [OSTI]

    Haves, Philip

    2008-01-01

    annual results for electricity consumption and peak demandTampa Average Electricity Consumption, Annual Normalizeddifferences in electricity consumption. The ‘Total Source’

  12. Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

    E-Print Network [OSTI]

    Haves, Philip

    2008-01-01

    Pasadena New York Tampa Average Annual Energy SavingsPasadena New York Tampa Average Annual Energy SavingsPasadena New York Tampa Average Annual Energy Consumption

  13. Benchmarking and Equipment and Controls Assessment for a `Big Box' Retail Chain

    E-Print Network [OSTI]

    constant air volume DX cooling units with gas heat. Lighting is florescent on the sales floor, recess. Modeled store hours are 8 am to 10 pm. The HVAC system is made up of individual commercial rooftop

  14. Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

    E-Print Network [OSTI]

    Haves, Philip

    2008-01-01

    currently operating with an economizer lockout of 65 o F.Figure 3, increasing the lockout temperature to 70 o F couldIncreasing the Economizer Lockout Temp from 65 o F to 70 o F

  15. Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

    E-Print Network [OSTI]

    Haves, Philip

    2008-01-01

    J. Glazer. (2001). “EnergyPlus: Creating a New-Generationstandard design using the EnergyPlus simulation program. Forstore design using the EnergyPlus simulation program

  16. Conservation Assessment for the Big Bend-Ro Bravo Region 19 Aquatic and

    E-Print Network [OSTI]

    Pasternack, Gregory B.

    - sidio, Texas, and Ojinaga, Chihuahua. Dams and diver- sions throughout the basin, in addition complement of native species (see Conservation Targets list) that are dependent on a suite of habitat

  17. A Shack-Hartmann wavefront sensor projected onto the sky with reduced focal anisoplanatism

    E-Print Network [OSTI]

    T. Butterley; G. D. Love; R. W. Wilson; R. M. Myers; T. J. Morris

    2006-02-10

    A method for producing a laser guide star wavefront sensor for adaptive optics with reduced focal anisoplanatism is presented. A theoretical analysis and numerical simulations have been carried out and the results are presented. The technique, named SPLASH (Sky-Projected Laser Array Shack-Hartmann), is shown to suffer considerably less from focal anisoplanatism than a conventional laser guide star system. The method is potentially suitable for large telescope apertures (~8m), and possibly for extremely large telescopes.

  18. Low-Mass Dwarf Template Spectra from the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    John J. Bochanski; Andrew A. West; Suzanne L. Hawley; Kevin R. Covey

    2006-10-20

    We present template spectra of low-mass (M0-L0) dwarfs derived from over 4,000 Sloan Digital Sky Survey (SDSS) spectra. These composite spectra are suitable for use as medium-resolution (R ~ 1,800) radial velocity standards. We report mean spectral properties (molecular bandhead strengths,equivalent widths) and use the templates to investigate the effects of magnetic activity and metallicity on the spectroscopic and photometric properties of low-mass stars.

  19. An All-Sky Search for Steady VHE Gamma-Ray Sources

    E-Print Network [OSTI]

    Atkins, R; Berley, D; Chen, M L; Coyne, D G; Delay, R S; Dingus, B L; Dorfan, D E; Ellsworth, R W; Evans, D; Falcone, A D; Fleysher, L; Fleysher, R; Gisler, G; Goodman, J A; Haines, T J; Hoffman, C M; Hugenberger, S; Kelley, L A; Leonor, I; Macri, J R; McConnell, M; McCullough, J F; McEnery, J E; Miller, R S; Mincer, A I; Morales, M F; Némethy, P; Ryan, J M; Schneider, M; Shen, B; Shoup, A L; Sinnis, G; Smith, A J; Sullivan, G W; Thompson, T N; Tümer, T O; Wang, K; Wascko, M O; Westerhoff, S; Williams, D A; Yang, T; Yodh, G B

    1999-01-01

    The Milagrito water Cherenkov detector in the Jemez Mountains near Los Alamos, New Mexico took data from February 1997 to April 1998. Milagrito served as a prototype for the larger Milagro detector, which has just begun operations. Milagrito was the first large-aperture gamma-ray detector with sensitivity to gamma rays below 1 TeV. We report here on a search for steady emission from point sources over most of the northern sky using data from Milagrito.

  20. An All-Sky Search for Steady VHE Gamma-Ray Sources

    E-Print Network [OSTI]

    R. Atkins; W. Benbow; D. Berley; M. -L. Chen; D. G. Coyne; R. S. Delay; B. L. Dingus; D. E. Dorfan; R. W. Ellsworth; D. Evans; A. Falcone; L. Fleysher; R. Fleysher; G. Gisler; J. A. Goodman; T. J. Haines; C. M. Hoffman; S. Hugenberger; L. A. Kelley; I. Leonor; J. Macri; M. McConnell; J. F. McCullough; J. E. McEnery; R. S. Miller; A. I. Mincer; M. F. Morales; P. Nemethy; J. M. Ryan; M. Schneider; B. Shen; A. Shoup; G. Sinnis; A. J. Smith; G. W. Sullivan; T. N. Thompson; O. T. Tumer; K. Wang; M. O. Wascko; S. Westerhoff; D. A. Williams; T. Yang; G. B. Yodh

    1999-06-23

    The Milagrito water Cherenkov detector in the Jemez Mountains near Los Alamos, New Mexico took data from February 1997 to April 1998. Milagrito served as a prototype for the larger Milagro detector, which has just begun operations. Milagrito was the first large-aperture gamma-ray detector with sensitivity to gamma rays below 1 TeV. We report here on a search for steady emission from point sources over most of the northern sky using data from Milagrito.

  1. Design of a telescope pointing and tracking subsystem for the Big Bear Solar Observatory New Solar Telescope

    E-Print Network [OSTI]

    Design of a telescope pointing and tracking subsystem for the Big Bear Solar Observatory New Solar Telescope J. R. Varsika and G.Yangb aBig Bear Solar Observatory, 40386 North Shore Lane, Big Bear City, California, U.S.A.; bNew Jersey Institute of Technology, Newark, New Jersey, U.S.A. ABSTRACT The New Solar

  2. IEEE COMPUTATIONAL INTELLIGENCE MAGAZINE, VOL. XX, NO. X, XXXX 20XX 1 Big Data Opportunities and Challenges

    E-Print Network [OSTI]

    Jin, Yaochu

    IEEE COMPUTATIONAL INTELLIGENCE MAGAZINE, VOL. XX, NO. X, XXXX 20XX 1 Big Data Opportunities, and Graham J. Williams Abstract--"Big Data" as a term has been among the biggest trends of the last three and perspectives of the authors relating to the new opportunities and challenges brought forth by the big data

  3. Plantage Muidergracht 12 | 020 525 4330 | admissions-mbabd@uva.nl mba-bigdata.nl MBA Big Data & Business Analytics

    E-Print Network [OSTI]

    Koolen, Marijn

    Plantage Muidergracht 12 | 020 525 4330 | admissions-mbabd@uva.nl mba-bigdata.nl MBA Big Data & Business Analytics To work in Big Data or Business Analytics requires strong multi-disciplinary skills of this MBA is specifically designed to develop students into knowledgeable Big Data experts, both able to do

  4. Introduction to Big Data and High-Performance Computing Lecture 9:30 a.m., Tuesday

    E-Print Network [OSTI]

    Rhode Island, University of

    Introduction to Big Data and High-Performance Computing Lecture ­ 9:30 a.m., Tuesday Labs ­ 10:00 a capacity is set to 25 students. In order to best serve students with Big Data and HPC interests and needs Big Data. This need can be in any discipline (science, engineering, computer science, mathematics

  5. Standard big bang nucleosynthesis and primordial CNO abundances after Planck

    SciTech Connect (OSTI)

    Coc, Alain [Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), CNRS/IN2P3, Université Paris Sud 11, UMR 8609, Bâtiment 104, F–91405 Orsay Campus (France); Uzan, Jean-Philippe; Vangioni, Elisabeth, E-mail: coc@csnsm.in2p3.fr, E-mail: uzan@iap.fr, E-mail: vangioni@iap.fr [Institut d'Astrophysique de Paris, UMR-7095 du CNRS, Université Pierre et Marie Curie, 98 bis bd Arago, 75014 Paris (France)

    2014-10-01

    Primordial or big bang nucleosynthesis (BBN) is one of the three historical strong evidences for the big bang model. The recent results by the Planck satellite mission have slightly changed the estimate of the baryonic density compared to the previous WMAP analysis. This article updates the BBN predictions for the light elements using the cosmological parameters determined by Planck, as well as an improvement of the nuclear network and new spectroscopic observations. There is a slight lowering of the primordial Li/H abundance, however, this lithium value still remains typically 3 times larger than its observed spectroscopic abundance in halo stars of the Galaxy. According to the importance of this ''lithium problem{sup ,} we trace the small changes in its BBN calculated abundance following updates of the baryonic density, neutron lifetime and networks. In addition, for the first time, we provide confidence limits for the production of {sup 6}Li, {sup 9}Be, {sup 11}B and CNO, resulting from our extensive Monte Carlo calculation with our extended network. A specific focus is cast on CNO primordial production. Considering uncertainties on the nuclear rates around the CNO formation, we obtain CNO/H ? (5-30)×10{sup -15}. We further improve this estimate by analyzing correlations between yields and reaction rates and identified new influential reaction rates. These uncertain rates, if simultaneously varied could lead to a significant increase of CNO production: CNO/H?10{sup -13}. This result is important for the study of population III star formation during the dark ages.

  6. All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data

    E-Print Network [OSTI]

    Abadie, J; Abbott, R; Abbott, T D; Abernathy, M; Accadia, T; Acernese, F; Adams, C; Adhikari, R; Affeldt, C; Ajith, P; Allen, B; Allen, G S; Ceron, E Amador; Amariutei, D; Amin, R S; Anderson, S B; Anderson, W G; Arai, K; Arain, M A; Araya, M C; Aston, S M; Astone, P; Atkinson, D; Aufmuth, P; Aulbert, C; Aylott, B E; Babak, S; Baker, P; Ballardin, G; Ballmer, S; Barker, D; Barone, F; Barr, B; Barriga, P; Barsotti, L; Barsuglia, M; Barton, M A; Bartos, I; Bassiri, R; Bastarrika, M; Basti, A; Batch, J; Bauchrowitz, J; Bauer, Th S; Bebronne, M; Behnke, B; Beker, M G; Bell, A S; Belletoile, A; Belopolski, I; Benacquista, M; Berliner, J M; Bertolini, A; Betzwieser, J; Beveridge, N; Beyersdorf, P T; Bilenko, I A; Billingsley, G; Birch, J; Biswas, R; Bitossi, M; Bizouard, M A; Black, E; Blackburn, J K; Blackburn, L; Blair, D; Bland, B; Blom, M; Bock, O; Bodiya, T P; Bogan, C; Bondarescu, R; Bondu, F; Bonelli, L; Bonnand, R; Bork, R; Born, M; Boschi, V; Bose, S; Bosi, L; Bouhou, B; Braccini, S; Bradaschia, C; Brady, P R; Braginsky, V B; Branchesi, M; Brau, J E; Breyer, J; Briant, T; Bridges, D O; Brillet, A; Brinkmann, M; Brisson, V; Britzger, M; Brooks, A F; Brown, D A; Brummit, A; Bulik, T; Bulten, H J; Buonanno, A; Burguet--Castell, J; Burmeister, O; Buskulic, D; Buy, C; Byer, R L; Cadonati, L; Cagnoli, G; Cain, J; Calloni, E; Camp, J B; Campsie, P; Cannizzo, J; Cannon, K; Canuel, B; Cao, J; Capano, C D; Carbognani, F; Caride, S; Caudill, S; Cavaglià, M; Cavalier, F; Cavalieri, R; Cella, G; Cepeda, C; Cesarini, E; Chaibi, O; Chalermsongsak, T; Chalkley, E; Charlton, P; Chassande-Mottin, E; Chelkowski, S; Chen, Y; Chincarini, A; Chiummo, A; Cho, H; Christensen, N; Chua, S S Y; Chung, C T Y; Chung, S; Ciani, G; Clara, F; Clark, D E; Clark, J; Clayton, J H; Cleva, F; Coccia, E; Cohadon, P -F; Colacino, C N; Colas, J; Colla, A; Colombini, M; Conte, A; Conte, R; Cook, D; Corbitt, T R; Cordier, M; Cornish, N; Corsi, A; Costa, C A; Coughlin, M; Coulon, J -P; Couvares, P; Coward, D M; Coyne, D C; Creighton, J D E; Creighton, T D; Cruise, A M; Cumming, A; Cunningham, L; Cuoco, E; Cutler, R M; Dahl, K; Danilishin, S L; Dannenberg, R; D'Antonio, S; Danzmann, K; Dattilo, V; Daudert, B; Daveloza, H; Davier, M; Davies, G; Daw, E J; Day, R; Dayanga, T; De Rosa, R; DeBra, D; Debreczeni, G; Degallaix, J; Del Pozzo, W; del Prete, M; Dent, T; Dergachev, V; DeRosa, R; DeSalvo, R; Dhurandhar, S; Di Fiore, L; Di Lieto, A; Di Palma, I; Emilio, M Di Paolo; Di Virgilio, A; Díaz, M; Dietz, A; Donovan, F; Dooley, K L; Dorsher, S; Drago, M; Drever, R W P; Driggers, J C; Du, Z; Dumas, J -C; Dwyer, S; Eberle, T; Edgar, M; Edwards, M; Effler, A; Ehrens, P; Endr?czi, G; Engel, R; Etzel, T; Evans, K; Evans, M; Evans, T; Factourovich, M; Fafone, V; Fairhurst, S; Fan, Y; Farr, B F; Farr, W; Fazi, D; Fehrmann, H; Feldbaum, D; Ferrante, I; Fidecaro, F; Finn, L S; Fiori, I; Fisher, R P; Flaminio, R; Flanigan, M; Foley, S; Forsi, E; Forte, L A; Fotopoulos, N; Fournier, J -D; Franc, J; Frasca, S; Frasconi, F; Frede, M; Frei, M; Frei, Z; Freise, A; Frey, R; Fricke, T T; Friedrich, D; Fritschel, P; Frolov, V V; Fulda, P J; Fyffe, M; Galimberti, M; Gammaitoni, L; Ganija, M R; Garcia, J; Garofoli, J A; Garufi, F; Gáspár, M E; Gemme, G; Geng, R; Genin, E; Gennai, A; Gergely, L Á; Ghosh, S; Giaime, J A; Giampanis, S; Giardina, K D; Giazotto, A; Gill, C; Goetz, E; Goggin, L M; González, G; Gorodetsky, M L; Goßler, S; Gouaty, R; Graef, C; Granata, M; Grant, A; Gras, S; Gray, C; Gray, N; Greenhalgh, R J S; Gretarsson, A M; Greverie, C; Grosso, R; Grote, H; Grunewald, S; Guidi, G M; Guido, C; Gupta, R; Gustafson, E K; Gustafson, R; Ha, T; Hage, B; Hallam, J M; Hammer, D; Hammond, G; Hanks, J; Hanna, C; Hanson, J; Harms, J; Harry, G M; Harry, I W; Harstad, E D; Hartman, M T; Haughian, K; Hayama, K; Hayau, J -F; Hayler, T; Heefner, J; Heidmann, A; Heintze, M C; Heitmann, H; Hello, P; Hendry, M A; Heng, I S; Heptonstall, A W; Herrera, V; Hewitson, M; Hild, S; Hoak, D; Hodge, K A; Holt, K; Hong, T; Hooper, S; Hosken, D J; Hough, J; Howell, E J; Hughey, B; Husa, S; Huttner, S H; Huynh-Dinh, T; Ingram, D R; Inta, R; Isogai, T; Ivanov, A; Izumi, K; Jacobson, M; Jang, H; Jaranowski, P; Johnson, W W; Jones, D I; Jones, G; Jones, R; Ju, L; Kalmus, P; Kalogera, V; Kamaretsos, I; Kandhasamy, S; Kang, G; Kanner, J B; Katsavounidis, E; Katzman, W; Kaufer, H; Kawabe, K; Kawamura, S; Kawazoe, F; Kells, W; Keppel, D G; Keresztes, Z; Khalaidovski, A; Khalili, F Y; Khazanov, E A; Kim, B; Kim, C; Kim, D; Kim, H; Kim, K; Kim, N; Kim, Y -M; King, P J; Kinsey, M; Kinzel, D L; Kissel, J S; Klimenko, S; Kokeyama, K; Kondrashov, V; Kopparapu, R; Koranda, S; Korth, W Z; Kowalska, I; Kozak, D; Kringel, V; Krishnamurthy, S; Krishnan, B; Królak, A; Kuehn, G; Kumar, R; Kwee, P; Lam, P K; Landry, M; Lang, M; Lantz, B; Lastzka, N; Lawrie, C; Lazzarini, A; Leaci, P; Lee, C H; Lee, H M

    2011-01-01

    We report on an all-sky search for periodic gravitational waves in the frequency band 50-800 Hz and with the frequency time derivative in the range of 0 through -6e-9 Hz/s. Such a signal could be produced by a nearby spinning and slightly non-axisymmetric isolated neutron star in our galaxy. After recent improvements in the search program that yielded a 10x increase in computational efficiency, we have searched in two years of data collected during LIGO's fifth science run and have obtained the most sensitive all-sky upper limits on gravitational wave strain to date. Near 150 Hz our upper limit on worst-case linearly polarized strain amplitude $h_0$ is 1e-24, while at the high end of our frequency range we achieve a worst-case upper limit of 3.8e-24 for all polarizations and sky locations. These results constitute a factor of two improvement upon previously published data. A new detection pipeline utilizing a Loosely Coherent algorithm was able to follow up weaker outliers, increasing the volume of space wher...

  7. All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data

    E-Print Network [OSTI]

    J. Abadie; B. P. Abbott; R. Abbott; T. D. Abbott; M. Abernathy; T. Accadia; F. Acernese; C. Adams; R. Adhikari; C. Affeldt; P. Ajith; B. Allen; G. S. Allen; E. Amador Ceron; D. Amariutei; R. S. Amin; S. B. Anderson; W. G. Anderson; K. Arai; M. A. Arain; M. C. Araya; S. M. Aston; P. Astone; D. Atkinson; P. Aufmuth; C. Aulbert; B. E. Aylott; S. Babak; P. Baker; G. Ballardin; S. Ballmer; D. Barker; F. Barone; B. Barr; P. Barriga; L. Barsotti; M. Barsuglia; M. A. Barton; I. Bartos; R. Bassiri; M. Bastarrika; A. Basti; J. Batch; J. Bauchrowitz; Th. S. Bauer; M. Bebronne; B. Behnke; M. G. Beker; A. S. Bell; A. Belletoile; I. Belopolski; M. Benacquista; J. M. Berliner; A. Bertolini; J. Betzwieser; N. Beveridge; P. T. Beyersdorf; I. A. Bilenko; G. Billingsley; J. Birch; R. Biswas; M. Bitossi; M. A. Bizouard; E. Black; J. K. Blackburn; L. Blackburn; D. Blair; B. Bland; M. Blom; O. Bock; T. P. Bodiya; C. Bogan; R. Bondarescu; F. Bondu; L. Bonelli; R. Bonnand; R. Bork; M. Born; V. Boschi; S. Bose; L. Bosi; B. Bouhou; S. Braccini; C. Bradaschia; P. R. Brady; V. B. Braginsky; M. Branchesi; J. E. Brau; J. Breyer; T. Briant; D. O. Bridges; A. Brillet; M. Brinkmann; V. Brisson; M. Britzger; A. F. Brooks; D. A. Brown; A. Brummit; T. Bulik; H. J. Bulten; A. Buonanno; J. Burguet--Castell; O. Burmeister; D. Buskulic; C. Buy; R. L. Byer; L. Cadonati; G. Cagnoli; J. Cain; E. Calloni; J. B. Camp; P. Campsie; J. Cannizzo; K. Cannon; B. Canuel; J. Cao; C. D. Capano; F. Carbognani; S. Caride; S. Caudill; M. Cavaglià; F. Cavalier; R. Cavalieri; G. Cella; C. Cepeda; E. Cesarini; O. Chaibi; T. Chalermsongsak; E. Chalkley; P. Charlton; E. Chassande-Mottin; S. Chelkowski; Y. Chen; A. Chincarini; A. Chiummo; H. Cho; N. Christensen; S. S. Y. Chua; C. T. Y. Chung; S. Chung; G. Ciani; F. Clara; D. E. Clark; J. Clark; J. H. Clayton; F. Cleva; E. Coccia; P. -F. Cohadon; C. N. Colacino; J. Colas; A. Colla; M. Colombini; A. Conte; R. Conte; D. Cook; T. R. Corbitt; M. Cordier; N. Cornish; A. Corsi; C. A. Costa; M. Coughlin; J. -P. Coulon; P. Couvares; D. M. Coward; D. C. Coyne; J. D. E. Creighton; T. D. Creighton; A. M. Cruise; A. Cumming; L. Cunningham; E. Cuoco; R. M. Cutler; K. Dahl; S. L. Danilishin; R. Dannenberg; S. D'Antonio; K. Danzmann; V. Dattilo; B. Daudert; H. Daveloza; M. Davier; G. Davies; E. J. Daw; R. Day; T. Dayanga; R. De Rosa; D. DeBra; G. Debreczeni; J. Degallaix; W. Del Pozzo; M. del Prete; T. Dent; V. Dergachev; R. DeRosa; R. DeSalvo; S. Dhurandhar; L. Di Fiore; A. Di Lieto; I. Di Palma; M. Di Paolo Emilio; A. Di Virgilio; M. Díaz; A. Dietz; F. Donovan; K. L. Dooley; S. Dorsher; M. Drago; R. W. P. Drever; J. C. Driggers; Z. Du; J. -C. Dumas; S. Dwyer; T. Eberle; M. Edgar; M. Edwards; A. Effler; P. Ehrens; G. Endr?czi; R. Engel; T. Etzel; K. Evans; M. Evans; T. Evans; M. Factourovich; V. Fafone; S. Fairhurst; Y. Fan; B. F. Farr; W. Farr; D. Fazi; H. Fehrmann; D. Feldbaum; I. Ferrante; F. Fidecaro; L. S. Finn; I. Fiori; R. P. Fisher; R. Flaminio; M. Flanigan; S. Foley; E. Forsi; L. A. Forte; N. Fotopoulos; J. -D. Fournier; J. Franc; S. Frasca; F. Frasconi; M. Frede; M. Frei; Z. Frei; A. Freise; R. Frey; T. T. Fricke; D. Friedrich; P. Fritschel; V. V. Frolov; P. J. Fulda; M. Fyffe; M. Galimberti; L. Gammaitoni; M. R. Ganija; J. Garcia; J. A. Garofoli; F. Garufi; M. E. Gáspár; G. Gemme; R. Geng; E. Genin; A. Gennai; L. Á. Gergely; S. Ghosh; J. A. Giaime; S. Giampanis; K. D. Giardina; A. Giazotto; C. Gill; E. Goetz; L. M. Goggin; G. González; M. L. Gorodetsky; S. Goßler; R. Gouaty; C. Graef; M. Granata; A. Grant; S. Gras; C. Gray; N. Gray; R. J. S. Greenhalgh; A. M. Gretarsson; C. Greverie; R. Grosso; H. Grote; S. Grunewald; G. M. Guidi; C. Guido; R. Gupta; E. K. Gustafson; R. Gustafson; T. Ha; B. Hage; J. M. Hallam; D. Hammer; G. Hammond; J. Hanks; C. Hanna; J. Hanson; J. Harms; G. M. Harry; I. W. Harry; E. D. Harstad; M. T. Hartman; K. Haughian; K. Hayama; J. -F. Hayau; T. Hayler; J. Heefner; A. Heidmann; M. C. Heintze; H. Heitmann; P. Hello; M. A. Hendry; I. S. Heng; A. W. Heptonstall; V. Herrera; M. Hewitson; S. Hild; D. Hoak; K. A. Hodge; K. Holt; T. Hong; S. Hooper; D. J. Hosken; J. Hough; E. J. Howell; B. Hughey; S. Husa; S. H. Huttner; T. Huynh-Dinh; D. R. Ingram; R. Inta; T. Isogai; A. Ivanov; K. Izumi; M. Jacobson; H. Jang; P. Jaranowski; W. W. Johnson; D. I. Jones; G. Jones; R. Jones; L. Ju; P. Kalmus; V. Kalogera; I. Kamaretsos; S. Kandhasamy; G. Kang; J. B. Kanner; E. Katsavounidis; W. Katzman; H. Kaufer; K. Kawabe; S. Kawamura; F. Kawazoe; W. Kells; D. G. Keppel; Z. Keresztes; A. Khalaidovski; F. Y. Khalili; E. A. Khazanov; B. Kim; C. Kim; D. Kim; H. Kim; K. Kim; N. Kim; Y. -M. Kim; P. J. King; M. Kinsey; D. L. Kinzel; J. S. Kissel; S. Klimenko; K. Kokeyama; V. Kondrashov; R. Kopparapu; S. Koranda; W. Z. Korth; I. Kowalska; D. Kozak; V. Kringel; S. Krishnamurthy; B. Krishnan; A. Królak

    2011-10-02

    We report on an all-sky search for periodic gravitational waves in the frequency band 50-800 Hz and with the frequency time derivative in the range of 0 through -6e-9 Hz/s. Such a signal could be produced by a nearby spinning and slightly non-axisymmetric isolated neutron star in our galaxy. After recent improvements in the search program that yielded a 10x increase in computational efficiency, we have searched in two years of data collected during LIGO's fifth science run and have obtained the most sensitive all-sky upper limits on gravitational wave strain to date. Near 150 Hz our upper limit on worst-case linearly polarized strain amplitude $h_0$ is 1e-24, while at the high end of our frequency range we achieve a worst-case upper limit of 3.8e-24 for all polarizations and sky locations. These results constitute a factor of two improvement upon previously published data. A new detection pipeline utilizing a Loosely Coherent algorithm was able to follow up weaker outliers, increasing the volume of space where signals can be detected by a factor of 10, but has not revealed any gravitational wave signals. The pipeline has been tested for robustness with respect to deviations from the model of an isolated neutron star, such as caused by a low-mass or long-period binary companion.

  8. SkyMouse: A smart interface for astronomical on-line resources and services

    E-Print Network [OSTI]

    Chen-Zhou CUI; Hua-Ping SUN; Yong-Heng ZHAO; Yu LUO; Da-Zhi QI

    2007-11-27

    With the development of network and the World Wide Web (WWW), the Internet has been growing and changing dramatically. More and more on-line database systems and different kinds of services are available for astronomy research. How to help users find their way through the jungle of information services becomes an important challenge. Although astronomers have been aware of the importance of interoperability and introduced the concept of Virtual Observatory as a uniform environment for future astronomical on-line resources and services, transparent access to heterogeneous on-line information is still difficult. SkyMouse is a lightweight interface for distributed astronomical on-line resources and services, which is designed and developed by us, i.e., Chinese Virtual Observatory Project. Taking advantage of screen word-capturing technology, different kinds of information systems can be queried through simple mouse actions, and results are returned in a uniform web page. SkyMouse is an easy to use application, aiming to show basic information or to create a comprehensive overview of a specific astronomical object. In this paper current status of on-line resources and services access is reviewed; system architecture, features and functions of SkyMouse are described; challenges for intelligent interface for on-line astronomical resources and services are discussed.

  9. HIGH-VELOCITY CLOUDS IN THE GALACTIC ALL SKY SURVEY. I. CATALOG

    SciTech Connect (OSTI)

    Moss, V. A.; Kummerfeld, J. K.; McClure-Griffiths, N. M.; Murphy, T.; Pisano, D. J.; Curran, J. R.

    2013-11-01

    We present a catalog of high-velocity clouds (HVCs) from the Galactic All Sky Survey (GASS) of southern sky neutral hydrogen, which has 57 mK sensitivity and 1 km s{sup –1} velocity resolution and was obtained with the Parkes Telescope. Our catalog has been derived from the stray-radiation-corrected second release of GASS. We describe the data and our method of identifying HVCs and analyze the overall properties of the GASS population. We catalog a total of 1693 HVCs at declinations <0°, including 1111 positive velocity HVCs and 582 negative velocity HVCs. Our catalog also includes 295 anomalous velocity clouds (AVCs). The cloud line-widths of our HVC population have a median FWHM of ?19 km s{sup –1}, which is lower than that found in previous surveys. The completeness of our catalog is above 95% based on comparison with the HIPASS catalog of HVCs upon which we improve by an order of magnitude in spectral resolution. We find 758 new HVCs and AVCs with no HIPASS counterpart. The GASS catalog will shed unprecedented light on the distribution and kinematic structure of southern sky HVCs, as well as delve further into the cloud populations that make up the anomalous velocity gas of the Milky Way.

  10. Sloan Digital Sky Survey III (SDSS-III), Data Release 8

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

    Building on the legacy of the Sloan Digital Sky Survey (SDSS) and SDSS-II, the SDSS-III Collaboration is working to map the Milky Way, search for extrasolar planets, and solve the mystery of dark energy. SDSS-III's first release, Data Release 8 (DR8), became available in the first half of 2012. DR8 contains all the images ever taken by the SDSS telescope. Together, these images make up the largest color image of the sky ever made. A version of the DR8 image is shown to the right. DR8 also includes measurements for nearly 500 million stars, galaxies, and quasars, and spectra for nearly two million. All of DR8's images, spectra, and measurements are available to anyone online. You can browse through sky images, look up data for individual objects, or search for objects anywhere using any criteria. SDSS-III will collect data from 2008 to 2014, using the 2.5-meter telescope at Apache Point Observatory. SDSS-III consists of four surveys, each focused on a different scientific theme. These four surveys are: 1) Baryon Oscillation Spectroscopic Survey (BOSS); 2) SEGUE-2 (Sloan Extension for Galactic Understanding and Exploration); 3) The APO Galactic Evolution Experiment (APOGEE); and 4) The Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). [Copied with edits from http://www.sdss3.org/index.php

  11. ANTISYMMETRY IN THE FARADAY ROTATION SKY CAUSED BY A NEARBY MAGNETIZED BUBBLE

    SciTech Connect (OSTI)

    Wolleben, M.; Landecker, T. L.; Fletcher, A.; Carretti, E.; McClure-Griffiths, N.; Dickey, J. M.; Gaensler, B. M.; Haverkorn, M.; Reich, W.; Taylor, A. R.

    2010-11-20

    Rotation measures (RMs) of pulsars and extragalactic point sources have been known to reveal large-scale antisymmetries in the Faraday rotation sky with respect to the Galactic plane and halo that have been interpreted as signatures of the mean magnetic field in the Galactic halo. We describe Faraday rotation measurements of the diffuse Galactic polarized radio emission over a large region in the northern Galactic hemisphere. Through application of RM synthesis we achieve sensitive Faraday rotation maps with high angular resolution, capable of revealing fine-scale structures of {approx}1{sup 0} in the Faraday rotation sky. Our analysis suggests that the observed antisymmetry in the Faraday rotation sky at b>0{sup 0} is dominated by the magnetic field around a local H I bubble at a distance of 100 pc, and not by the magnetic field of the Galactic halo. We derive physical properties of the magnetic field of this shell, which we find to be 20-34 {mu}G strong. It is clear that the diffuse polarized radio emission contains important information about the local magneto-ionic medium, which cannot yet be derived from Faraday RMs of extragalactic sources or pulsars alone.

  12. Lattice template placement for coherent all-sky searches for gravitational-wave pulsars

    E-Print Network [OSTI]

    Karl Wette

    2014-12-22

    All-sky, broadband, coherent searches for gravitational-wave pulsars are restricted by limited computational resources. Minimizing the number of templates required to cover the search parameter space, of sky position and frequency evolution, is one important way to reduce the computational cost of a search. We demonstrate a practical algorithm which, for the first time, achieves template placement with a minimal number of templates for an all-sky search, using the reduced supersky parameter-space metric of Wette and Prix [Phys. Rev. D 88, 123005 (2013)]. The metric prescribes a constant template density in the signal parameters, which permits that templates be placed at the vertices of a lattice. We demonstrate how to ensure complete coverage of the parameter space, including in particular at its boundaries. The number of templates generated by the algorithm is compared to theoretical estimates, and to previous predictions by Brady et al. [Phys. Rev. D 57, 2101 (1998)]. The algorithm may be applied to any search parameter space with a constant template density, which includes semicoherent searches and searches targeting known low-mass X-ray binaries.

  13. Source Catalog Data from FIRST (Faint Images of the Radio Sky at Twenty-Centimeters)

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

    Becker, Robert H.; Helfand, David J.; White, Richard L.; Gregg, Michael D.; Laurent-Muehleisen, Sally A.

    FIRST, Faint Images of the Radio Sky at Twenty-Centimeters, is a project designed to produce the radio equivalent of the Palomar Observatory Sky Survey over 10,000 square degrees of the North Galactic Cap. Using the National Radio Astronomy Observatory's (NRAO) Very Large Array (VLA) in its B-configuration, the Survey acquired 3-minute snapshots covering a hexagonal grid using 2?7 3-MHz frequency channels centered at 1365 and 1435 MHz. The data were edited, self-calibrated, mapped, and CLEANed using an automated pipeline based largely on routines in the Astronomical Image Processing System (AIPS). A final atlas of maps is produced by coadding the twelve images adjacent to each pointing center. Source catalogs with flux densities and size information are generated from the coadded images also. The 2011 catalog is the latest version and has been tested to ensure reliability and completness. The catalog, generated from the 1993 through 2004 images, contains 816,000 sources and covers more than 9000 square degrees. A specialized search interface for the catalog resides at this website, and the catalog is also available as a compressed ASCII file. The user may also view earlier versions of the source catalog. The FIRST survey area was chosen to coincide with that of the Sloan Digital Sky Survey (SDSS); at the m(v)~24 limit of SDSS, ~50% of the optical counterparts to FIRST sources will be detected.

  14. Galaxy Clusters in Hubble Volume Simulations: Cosmological Constraints from Sky Survey Populations

    E-Print Network [OSTI]

    A. E. Evrard; T. J. MacFarland; H. M. P. Couchman; J. M. Colberg; N. Yoshida; S. D. M. White; A. R. Jenkins; C. S. Frenk; F. R. Pearce; J. A. Peacock; P. A. Thomas

    2002-03-12

    We use giga-particle N-body simulations to study galaxy cluster populations in Hubble Volumes of LCDM (Omega_m=0.3, Omega_Lambda=0.7) and tCDM (Omega_m=1) world models. Mapping past light-cones of locations in the computational space, we create mock sky surveys of dark matter structure to z~1.4 over 10,000 sq deg and to z~0.5 over two full spheres. Calibrating the Jenkins mass function at z=0 with samples of ~1.5 million clusters, we show that the fit describes the sky survey counts to 5e13 Msun/h). Fitting the observed local temperature function determines the ratio beta of specific thermal energies in dark matter and intracluster gas. We derive a scaling with power spectrum normalization beta \\propto sigma8^{5/3}, and measure a 4% error on sigma8 arising from cosmic variance in temperature-limited cluster samples. Considering distant clusters, the LCDM model matches EMSS and RDCS X-ray-selected survey observations under economical assumptions for intracluster gas evolution. Using transformations of mass-limited cluster samples that mimic sigma8 variation, we explore SZ search expectations for a 10 sq deg survey complete above 10^{14} Msun/h. Cluster counts are shown to be extremely sensitive to sigma8 uncertainty while redshift statistics, such as the sample median, are much more stable. For LCDM, the characteristic temperature at fixed sky surface density is a weak function of redshift, implying an abundance of hot clusters at z>1. Assuming constant beta, four kT>8 keV clusters lie at z>2 and 40 kT>5 keV clusters lie at z>3 on the whole sky. Detection of Coma-sized clusters at z>1 violate LCDM at 95% confidence if their surface density exceeds 0.003 per sq deg, or 120 on the whole sky.

  15. Big Data Is not just a New Type, but a New Paradigm

    E-Print Network [OSTI]

    Jiang, Bin

    2015-01-01

    This paper is a first draft of the introduction to the special issue on volunteered geographic information published in Computers, Environment and Urban Systems (2015, 53, 1-122). In this short paper, I put georeferenced big data (hereafter, big data) such as tweets locations in comparison with small data such as census data in terms of data characteristics, and further argued that big data differs fundamentally from small data in terms of data analytics, both geometrially and statistically. I would like to thank my colleague Dr. Jean-Claude Thill, who expanded the draft towards a broader scope.

  16. Clear Skies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene NetworkNuclearDNP 20082 P r o j e c t D e s iSitesA. A. lacis

  17. Cloudy Skies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene NetworkNuclearDNP 20082 P r o j

  18. Cloudy Skies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene NetworkNuclearDNP 20082 P r o jJ. linn Space Science and

  19. EM Wins Awards for Taking Big Steps to Reduce DOE’s Electronics Footprint

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM is talking big steps to reduce its electronics footprint with exceptional results. EM sites won the majority of awards given to DOE for their outstanding performance in the 2012 Federal Electronics Challenge (FEC).

  20. >> Home >> World News Michael Richardson: Win for France over fusion reactor a big blow to Japan

    E-Print Network [OSTI]

    World News >> Home >> World News Michael Richardson: Win for France over fusion reactor a big blow source of energy, heat and light. Some scientists say fusion is the best option for abundant

  1. The Decay of the Neutron or Beta Decay, the Big Bang, and the...

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

    Decay of the Neutron or Beta Decay, the Big Bang, and the Left-Handed Universe Apr 03 2014 01:00 PM - 02:30 PM Geoffrey L. Greene Physics Division, ORNL Research Accelerator...

  2. The Influence of Big Donors on Congressional Behavior and Electoral Prospects 

    E-Print Network [OSTI]

    Socker, Erica Marie

    2013-11-18

    on their roll call voting, bill sponsorship and primary election prospects. The results suggest big donors shift members further to the ideological right and decrease their likelihood of introducing direct government spending bills in Congress. These financial...

  3. Data-aware distributed scientific computing for big-data problems...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Data-aware distributed scientific computing for big-data problems in bio-surveillance Citation Details In-Document Search Title: Data-aware distributed scientific...

  4. A Flexible Approach to Big Data at the APS | Argonne National...

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

    A Flexible Approach to Big Data at the APS November 23, 2015 11:00AM to 12:00PM Presenter Ray Osborn (MSD), Senior Physicist Location Building 401, Room A1100 Type Seminar Series...

  5. Big Data-Driven Marketing: How Machine Learning Outperforms Marketers’ Gut-Feeling

    E-Print Network [OSTI]

    Sundsøy, Pål

    2014-01-01

    This paper shows how big data can be experimentally used at large scale for marketing purposes at a mobile network operator. We present results from a large-scale experiment in a MNO in Asia where we use machine learning ...

  6. Big Data for Disease Control: Interdisciplinary approaches to data linkage and management 

    E-Print Network [OSTI]

    Lee, Shona Jane

    2014-08-26

    The source of tremendous promise and unsettling surveillance alike, the term ‘Big Data’ has attracted substantial public attention in recent years, garnering widespread press coverage and debate in equal measure. In reality it is like any other...

  7. Making Big Data Useful for Health Care: A Summary of the Inaugural MIT Critical Data Conference

    E-Print Network [OSTI]

    Badawi, Omar

    With growing concerns that big data will only augment the problem of unreliable research, the Laboratory of Computational Physiology at the Massachusetts Institute of Technology organized the Critical Data Conference in ...

  8. Research Positions in Big Data Computational Biology Department of Computational and Systems Biology

    E-Print Network [OSTI]

    Benos, Takis

    Research Positions in Big Data Computational Biology Department of Computational and clinical data related to melanoma and chronic lung diseases. The ideal, and will have research experience in computational biology. 2. One Data Scientist

  9. Big Data around UW-Madison Brian S. Yandell,UW-Madison

    E-Print Network [OSTI]

    Yandell, Brian S.

    (1995 Silicon Snake Oil) PBS NOVA (1990) "The KGB, the Computer, and Me" #12;What is (are) big data and networks · Spatial/temporal ­ images at all scales, static and dynamic ­ geospatial alliance, biomedical

  10. The 3rd Annual International TCE Conference Machine Learning & Big Data

    E-Print Network [OSTI]

    Schuster, Assaf

    The 3rd Annual International TCE Conference Machine Learning & Big Data Call for Presentations Industry Track at the International TCE Conference in Haifa The 3rd annual International TCE Conference

  11. SPECTROSCOPIC DIAGNOSTICS OF DISK ACCRETION IN HER BIG AE/BE STARS

    E-Print Network [OSTI]

    Hillenbrand, Lynne

    1 SPECTROSCOPIC DIAGNOSTICS OF DISK ACCRETION IN HER­ BIG AE/BE STARS L. GHANDOUR, S. STROM, S). In this contribution, we present preliminary results using new spectroscopic data to explore whether the last three

  12. Vascular Plant Survey of the Canyonlands Unit of the Big Thicket National Preserve, Tyler County, Texas 

    E-Print Network [OSTI]

    Haile, Kelly

    2012-10-19

    The Big Thicket National Preserve is located in the southern part of the United States. It is within the Pineywoods vegetation region of southeastern Texas. This study area was the Canyonlands Unit, a unit located entirely ...

  13. The relationship of social desirability responding and the Big Five: an investigation using confirmatory factor analysis 

    E-Print Network [OSTI]

    Carlisle, Todd Dana

    2000-01-01

    The relationship between social desirability responding (SDR) and the Big Five factors of personality was both summarized with a review of past and current studies and directly investigated using a series of confirmatory ...

  14. Inhomogeneous big bang nucleosynthesis with late-decaying massive particles

    E-Print Network [OSTI]

    J. Lopez-Suarez; R. Canal

    1998-04-22

    We investigate the possibility of accounting for the currently inferred primordial abundances of D, 3He, 4He, and 7Li by big bang nucleosynthesis in the presence of baryon density inhomogeneities plus the effects of late-decaying massive particles (X), and we explore the allowed range of baryonic fraction of the closure density Omega_b in such context. We find that, depending on the parameters of this composite model (characteristic size and density contrast of the inhomogeneities; mass-density, lifetime, and effective baryon number in the decay of the X-particles), values as high as \\Omega_{b}h_{50}^{2}\\simeq 0.25-0.35 could be compatible with the primordial abundances of the light nuclides. We include diffusion of neutrons and protons at all stages, and we consider the contribution of the X particles to the energy density, the entropy production by their decay, the possibility that the X-products could photodissociate the light nuclei produced during the previous stages of nucleosynthesis, and also the possibility that the decay products of the X-particles would include a substantial fraction of hadrons. Specific predictions for the primordial abundance of Be are made.

  15. Big Bang Day : Afternoon Play - Torchwood: Lost Souls

    ScienceCinema (OSTI)

    None

    2011-04-25

    Martha Jones, ex-time traveller and now working as a doctor for a UN task force, has been called to CERN where they're about to activate the Large Hadron Collider. Once activated, the Collider will fire beams of protons together recreating conditions a billionth of a second after the Big Bang - and potentially allowing the human race a greater insight into what the Universe is made of. But so much could go wrong - it could open a gateway to a parallel dimension, or create a black hole - and now voices from the past are calling out to people and scientists have started to disappear... Where have the missing scientists gone? What is the secret of the glowing man? What is lurking in the underground tunnel? And do the dead ever really stay dead? Lost Souls is a spin-off from the award-winning BBC Wales TV production Torchwood. It stars John Barrowman, Freema Agyeman, Eve Myles, Gareth David-Lloyd, Lucy Montgomery (of Titty Bang Bang) and Stephen Critchlow.

  16. Dark Radiation from Particle Decays during Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Menestrina, Justin L

    2011-01-01

    Cosmic microwave background (CMB) observations suggest the possibility of an extra dark radiation component, while the current evidence from big bang nucleosynthesis (BBN) is more ambiguous. Dark radiation from a decaying particle can affect these two processes differently. Early decays add an additional radiation component to both the CMB and BBN, while late decays can alter the radiation content seen in the CMB while having a negligible effect on BBN. Here we quantify this difference and explore the intermediate regime by examining particles decaying during BBN, i.e., particle lifetimes \\tau_X satisfying 0.1 sec 1000 sec), \\Delta N_{BBN} is dominated by the energy density of the nonrelativistic particles before they decay, so that \\Delta N_{BBN} remains nonzero and becomes independent of the particle lifetime. By varying both the particle energy density and lifetime, one can obtain any desired combination of \\Delta N_{BBN} and \\Delta N_{CMB}, subject to the constraint that \\Delta N_{CMB} >= \\Delta N_{BBN}.

  17. The NACRE Thermonuclear Reaction Compilation and Big Bang Nucleosynthesis

    E-Print Network [OSTI]

    Richard H. Cyburt; Brian D. Fields; Keith A. Olive

    2001-05-17

    The theoretical predictions of big bang nucleosynthesis (BBN) are dominated by uncertainties in the input nuclear reaction cross sections. In this paper, we examine the impact on BBN of the recent compilation of nuclear data and thermonuclear reactions rates by the NACRE collaboration. We confirm that the adopted rates do not make large overall changes in central values of predictions, but do affect the magnitude of the uncertainties in these predictions. Therefore, we then examine in detail the uncertainties in the individual reaction rates considered by NACRE. When the error estimates by NACRE are treated as 1\\sigma limits, the resulting BBN error budget is similar to those of previous tabulations. We propose two new procedures for deriving reaction rate uncertainties from the nuclear data: one which sets lower limits to the error, and one which we believe is a reasonable description of the present error budget. We propagate these uncertainty estimates through the BBN code, and find that when the nuclear data errors are described most accurately, the resulting light element uncertainties are notably smaller than in some previous tabulations, but larger than others. Using these results, we derive limits on the cosmic baryon-to-photon ratio $\\eta$, and compare this to independent limits on $\\eta$ from recent balloon-borne measurements of the cosmic microwave background radiation (CMB). We discuss means to improve the BBN results via key nuclear reaction measurements and light element observations.

  18. Baghouse Slipstream Testing at TXU's Big Brown Station

    SciTech Connect (OSTI)

    John Pavlish; Jason Laumb; Robert Jensen; Jeffery Thompson; Christopher Martin; Mark Musich; Brandon Pavlish; Stanley Miller; Lucinda Hamre

    2007-04-30

    Performing sorbent testing for mercury control at a large scale is a very expensive endeavor and requires months of planning and careful execution. Even with good planning, there are plant limitations on what operating/design parameters can be varied/tested and when. For parameters that cannot be feasibly tested at the full scale (lower/higher gas flow, different bag material, cleaning methods, sorbents, etc.), an alternative approach is used to perform tests on a slipstream unit using flue gas from the plant. The advantage that a slipstream unit provides is the flexibility to test multiple operating and design parameters and other possible technology options without risking major disruption to the operation of the power plant. Additionally, the results generated are expected to simulate full-scale conditions closely, since the flue gas used during the tests comes directly from the plant in question. The Energy & Environmental Research Center developed and constructed a mobile baghouse that allows for cost-effective testing of impacts related to variation in operating and design parameters, as well as other possible mercury control options. Multiple sorbents, air-to-cloth ratios, bag materials, and cleaning frequencies were evaluated while flue gas was extracted from Big Brown when it fired a 70% Texas lignite-30% Powder River Basin (PRB) blend and a 100% PRB coal.

  19. Constraint on slepton intergenerational mixing from big-bang nucleosynthesis

    SciTech Connect (OSTI)

    Kohri, Kazunori; Ohta, Shingo; Sato, Joe; Shimomura, Takashi; Yamanaka, Masato [Theory Center, Institute of Particle and Nuclear Studies, KEK (High Energy Accelerator Research Organization), 1-1 Oho, Tsukuba 305-0801 (Japan); Department of Physics, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570 (Japan); Department of Physics, Niigata University, Niigata, 950-8502 (Japan) and Max-Planck-Institut fur Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany); Maskawa Institute for Science and Culture, Kyoto Sangyo University, Kyoto 603-8555 (Japan)

    2012-07-27

    We find constraint on intergenerational mixing of slepton from big-bang nucleosynthesis (BBN). Today, we know that there exist lepton flavor violation (LFV) from the observation of neutrino oscillation, though there do not exist LFV in the standard model of particle physics (SM). LFV in charged lepton sector (cLFV) have also been expected to exist. From theoretical point of view, the effects of long-lived stau on BBN have been investigated and it is known that the stau can solve the cosmological 7Li problem. However, in the study so far, tau flavor is exactly conserved and it contradict with the existence of cLFV. In this study, we generalize the flavor to be violated and call the stau as slepton. Even if the violation is tiny, it drastically changes the lifetime and the evolution of relic density of the slepton. Thus we analyze the effects of the long-lived slepton on BBN, and constrain the magnitude of the cLFV.

  20. Effect of quark-mass variation on big bang nucleosynthesis

    E-Print Network [OSTI]

    J. C. Berengut; V. F. Dmitriev; V. V. Flambaum

    2009-07-14

    We calculate the effect of variation in the light-current quark mass, $m_q$, on standard big bang nucleosynthesis. A change in $m_q$ at during the era of nucleosynthesis affects nuclear reaction rates, and hence primordial abundances, via changes the binding energies of light nuclei. It is found that a relative variation of $\\delta m_q/m_q = 0.016 \\pm 0.005$ provides better agreement between observed primordial abundances and those predicted by theory. This is largely due to resolution of the existing discrepancies for 7Li. However this method ignores possible changes in the position of resonances in nuclear reactions. The predicted 7Li abundance has a strong dependence on the cross-section of the resonant reactions 3He(d,p)4He and t(d,n)4He. We show that changes in $m_q$ at the time of BBN could shift the position of these resonances away from the Gamow window and lead to an increased production of 7Li, exacerbating the lithium problem.

  1. Big Bang Nucleosynthesis and the Helium Isotope Ratio

    E-Print Network [OSTI]

    Cooke, Ryan

    2015-01-01

    The conventional approach to search for departures from the standard model of physics during Big Bang Nucleosynthesis involves a careful, and subtle measurement of the mass fraction of baryons consisting of helium. Recent measurements of this quantity tentatively support new physics beyond the standard model but, historically, this method has suffered from hidden systematic uncertainties. In this letter, I show that a combined measurement of the primordial deuterium abundance and the primordial helium isotope ratio has the potential to provide a complementary and reliable probe of new physics beyond the standard model. Using the recent determination of the primordial deuterium abundance and assuming that the measured pre-solar 3He/4He meteoritic abundance reflects the primordial value, a bound can be placed on the effective number of neutrino species, Neff(BBN) = 3.01 (+0.95 -0.76, with 95 per cent confidence). Although this value of Neff supports the standard model, it is presently unclear if the pre-solar 3...

  2. HAWC: A Next Generation All-Sky VHE Gamma-Ray Telescope

    E-Print Network [OSTI]

    G. Sinnis; A. Smith; J. E. McEnery

    2004-03-03

    The study of the universe at energies above 100 GeV is a relatively new and exciting field. The current generation of pointed instruments have detected TeV gamma rays from at least 10 sources and the next generation of detectors promises a large increase in sensitivity. We have also seen the development of a new type of all-sky monitor in this energy regime based on water Cherenkov technology (Milagro). To fully understand the universe at these extreme energies requires a highly sensitive detector capable of continuously monitoring the entire overhead sky. Such an instrument could observe prompt emission from gamma-ray bursts and probe the limits of Lorentz invariance at high energies. With sufficient sensitivity it could detect short transients ($\\sim$15 minutes) from active galaxies and study the time structure of flares at energies unattainable to space-based instruments. Unlike pointed instruments a wide-field instrument can make an unbiased study of all active galaxies and enable many multi-wavelength campaigns to study these objects. This paper describes the design and performance of a next generation water Cherenkov detector. To attain a low energy threshold and have high sensitivity the detector should be located at high altitude ($>$ 4km) and have a large area ($\\sim$40,000 m$^2$). Such an instrument could detect gamma ray bursts out to a redshift of 1, observe flares from active galaxies as short as 15 minutes in duration, and survey the overhead sky at a level of 50 mCrab in one year.

  3. A SOUTHERN SKY AND GALACTIC PLANE SURVEY FOR BRIGHT KUIPER BELT OBJECTS

    SciTech Connect (OSTI)

    Sheppard, Scott S.; Udalski, Andrzej; Kubiak, Marcin; Pietrzynski, Grzegorz; Poleski, Radoslaw; Soszynski, Igor; Szymanski, Michal K.; Ulaczyk, Krzysztof; Trujillo, Chadwick

    2011-10-15

    About 2500 deg{sup 2} of sky south of declination -25{sup 0} and/or near the Galactic Plane were surveyed for bright outer solar system objects. This survey is one of the first large-scale southern sky and Galactic Plane surveys to detect dwarf planets and other bright Kuiper Belt Objects in the trans-Neptunian region. The survey was able to obtain a limiting R-band magnitude of 21.6. In all, 18 outer solar system objects were detected, including Pluto which was detected near the Galactic center using optimal image subtraction techniques to remove the high stellar density background. Fourteen of the detections were previously unknown trans-Neptunian objects, demonstrating that the southern sky had not been well searched to date for bright outer solar system objects. Assuming moderate albedos, several of the new discoveries from this survey could be in hydrostatic equilibrium and thus could be considered dwarf planets. Combining this survey with previous surveys from the northern hemisphere suggests that the Kuiper Belt is nearly complete to around 21st magnitude in the R band. All the main dynamical classes in the Kuiper Belt are occupied by at least one dwarf-planet-sized object. The 3:2 Neptune resonance, which is the innermost well-populated Neptune resonance, has several large objects while the main outer Neptune resonances such as the 5:3, 7:4, 2:1, and 5:2 do not appear to have any large objects. This indicates that the outer resonances are either significantly depleted in objects relative to the 3:2 resonance or have a significantly different assortment of objects than the 3:2 resonance. For the largest objects (H < 4.5 mag), the scattered disk population appears to have a few times more objects than the main Kuiper Belt (MKB) population, while the Sedna population could be several times more than that of the MKB.

  4. HAWC: a next generation all-sky VHE gamma-ray telescope

    SciTech Connect (OSTI)

    Sinnis, G. (Gus); Smith, A.; McEnery, J. E.

    2004-01-01

    The study of the universe at energies above 100 GeV is a relatively new and exciting field. The current generation of pointed instruments have detected TeV gamma rays from at least 10 sources and the next generation of detectors promises a large increase in sensitivity. We have also seen the development of a new type of all-sky monitor in this energy regime based on water Cherenkov technology (Milagro). To fully understand the universe at these extreme energies requires a highly sensitive detector capable of continuously monitoring the entire overhead sky. Such an instrument could observe prompt emission from gamma-ray bursts and probe the limits of Lorentz invariance at high energies. With sufficient sensitivity it could detect shorthransients ({approx}15 minutes) from active galaxies and study the time structure of flares at energies unattainable to space-based instruments. Unlike pointed instruments a wide-field instrument can make an unbiased study of all active galaxies and enable many multi-wavelength campaigns to study these objects. This paper describes the design and performance of a next generation water Cherenkov detector. To attain a low energy threshold and have high sensitivity the detector should be located at high altitude (> 4km) and have a large area ({approx}40,000 m{sup 2}). Such an instrument could detect gamma ray bursts out to a redshift of 1, observe flares from active galaxies as short as 15 minutes in duration, and survey the overhead sky at a level of 50 mCrab in one year.

  5. Automated Classification of Sloan Digital Sky Survey (SDSS) Stellar Spectra using Artificial Neural Networks

    E-Print Network [OSTI]

    Mahdi Bazarghan; Ranjan Gupta

    2008-04-26

    Automated techniques have been developed to automate the process of classification of objects or their analysis. The large datasets provided by upcoming spectroscopic surveys with dedicated telescopes urges scientists to use these automated techniques for analysis of such large datasets which are now available to the community. Sloan Digital Sky Survey (SDSS) is one of such surveys releasing massive datasets. We use Probabilistic Neural Network (PNN) for automatic classification of about 5000 SDSS spectra into 158 spectral type of a reference library ranging from O type to M type stars.

  6. Cataclysmic Variables From the Sloan Digital Sky Survey. VI. the Sixth Year (2005)

    SciTech Connect (OSTI)

    Szkody, Paula; /Washington U., Seattle, Astron. Dept.; Henden, Arne; /Naval Observ., Flagstaff /AAVSO, Cambridge; Mannikko, Lee; Mukadam, Anjum; /Washington U., Seattle,; Schmidt, Gary D.; /Arizona U., Astron. Dept. - Steward Observ.; Bochanski, John J.; Agueros, Marcel; Anderson, Scott F.; Silvestri, Nicole M.; /Washington U., Seattle,; Dahab, William E.; /Princeton U. Observ.; Oguri, Masamune; /Princeton U. Observ. /KIPAC, Menlo Park; Schneider, Donald P.; /Penn State U., Astron. Astrophys.; Shin,; Strauss, Michael A.; Knapp, Gillian R.; /Princeton U. Observ.; West, Andrew A.; /Washington U., Seattle, Astron. Dept.

    2007-06-15

    The 28 cataclysmic variables found in 2005 in the Sloan Digital Sky Survey are presented with their coordinates, magnitudes and spectra. Five of these systems are previously known CVs (HH Cnc, SX LMi, QZ Ser, RXJ1554.2+2721 and HS1016+3412) and the rest are new discoveries. Additional spectroscopic, photometric and/or polarimetric observations of 10 systems were carried out, resulting in estimates of the orbital periods for seven of the new binaries. The 23 new CVs include one eclipsing system, one new Polar and five systems whose spectra clearly reveal atmospheric absorption lines from the underlying white dwarf.

  7. First low frequency all-sky search for continuous gravitational wave signals

    E-Print Network [OSTI]

    The LIGO Scientific Collaboration; the Virgo Collaboration; J. Aasi; B. P. Abbott; R. Abbott; T. D. Abbott; M. R. Abernathy; F. Acernese; K. Ackley; C. Adams; T. Adams; P. Addesso; R. X. Adhikari; V. B. Adya; C. Affeldt; M. Agathos; K. Agatsuma; N. Aggarwal; O. D. Aguiar; A. Ain; P. Ajith; B. Allen; A. Allocca; D. V. Amariutei; M. Andersen; S. B. Anderson; W. G. Anderson; K. Arai; M. C. Araya; C. C. Arceneaux; J. S. Areeda; N. Arnaud; G. Ashton; S. M. Aston; P. Astone; P. Aufmuth; C. Aulbert; S. Babak; P. T. Baker; F. Baldaccini; G. Ballardin; S. W. Ballmer; J. C. Barayoga; S. E. Barclay; B. C. Barish; D. Barker; F. Barone; B. Barr; L. Barsotti; M. Barsuglia; J. Bartlett; M. A. Barton; I. Bartos; R. Bassiri; A. Basti; J. C. Batch; C. Baune; V. Bavigadda; B. Behnke; M. Bejger; C. Belczynski; A. S. Bell; B. K. Berger; J. Bergman; G. Bergmann; C. P. L. Berry; D. Bersanetti; A. Bertolini; J. Betzwieser; S. Bhagwat; R. Bhandare; I. A. Bilenko; G. Billingsley; J. Birch; R. Birney; S. Biscans; M. Bitossi; C. Biwer; M. A. Bizouard; J. K. Blackburn; C. D. Blair; D. Blair; S. Bloemen; O. Bock; T. P. Bodiya; M. Boer; G. Bogaert; P. Bojtos; C. Bond; F. Bondu; R. Bonnand; R. Bork; M. Born; V. Boschi; Sukanta Bose; C. Bradaschia; P. R. Brady; V. B. Braginsky; M. Branchesi; V. Branco; J. E. Brau; T. Briant; A. Brillet; M. Brinkmann; V. Brisson; P. Brockill; A. F. Brooks; D. A. Brown; D. Brown; D. D. Brown; N. M. Brown; C. C. Buchanan; A. Buikema; T. Bulik; H. J. Bulten; A. Buonanno; D. Buskulic; C. Buy; R. L. Byer; L. Cadonati; G. Cagnoli; J. Calderón Bustillo; E. Calloni; J. B. Camp; K. C. Cannon; J. Cao; C. D. Capano; E. Capocasa; F. Carbognani; S. Caride; J. Casanueva Diaz; C. Casentini; S. Caudill; M. Cavaglià; F. Cavalier; R. Cavalieri; C. Celerier; G. Cella; C. Cepeda; L. Cerboni Baiardi; G. Cerretani; E. Cesarini; R. Chakraborty; T. Chalermsongsak; S. J. Chamberlin; S. Chao; P. Charlton; E. Chassande-Mottin; X. Chen; Y. Chen; C. Cheng; A. Chincarini; A. Chiummo; H. S. Cho; M. Cho; J. H. Chow; N. Christensen; Q. Chu; S. Chua; S. Chung; G. Ciani; F. Clara; J. A. Clark; F. Cleva; E. Coccia; P. -F. Cohadon; A. Colla; C. G. Collette; M. Colombini; M. Constancio Jr.; A. Conte; L. Conti; D. Cook; T. R. Corbitt; N. Cornish; A. Corsi; C. A. Costa; M. W. Coughlin; S. B. Coughlin; J. -P. Coulon; S. T. Countryman; P. Couvares; D. M. Coward; M. J. Cowart; D. C. Coyne; R. Coyne; K. Craig; J. D. E. Creighton; J. Cripe; S. G. Crowder; A. Cumming; L. Cunningham; E. Cuoco; T. Dal Canton; M. D. Damjanic; S. L. Danilishin; S. D'Antonio; K. Danzmann; N. S. Darman; V. Dattilo; I. Dave; H. P. Daveloza; M. Davier; G. S. Davies; E. J. Daw; R. Day; D. DeBra; G. Debreczeni; J. Degallaix; M. De Laurentis; S. Deléglise; W. Del Pozzo; T. Denker; T. Dent; H. Dereli; V. Dergachev; R. De Rosa; R. T. DeRosa; R. DeSalvo; S. Dhurandhar; M. C. Díaz; L. Di Fiore; M. Di Giovanni; A. Di Lieto; I. Di Palma; A. Di Virgilio; G. Dojcinoski; V. Dolique; E. Dominguez; F. Donovan; K. L. Dooley; S. Doravari; R. Douglas; T. P. Downes; M. Drago; R. W. P. Drever; J. C. Driggers; Z. Du; M. Ducrot; S. E. Dwyer; T. B. Edo; M. C. Edwards; M. Edwards; A. Effler; H. -B. Eggenstein; P. Ehrens; J. M. Eichholz; S. S. Eikenberry; R. C. Essick; T. Etzel; M. Evans; T. M. Evans; R. Everett; M. Factourovich; V. Fafone; S. Fairhurst; Q. Fang; S. Farinon; B. Farr; W. M. Farr; M. Favata; M. Fays; H. Fehrmann; M. M. Fejer; D. Feldbaum; I. Ferrante; E. C. Ferreira; F. Ferrini; F. Fidecaro; I. Fiori; R. P. Fisher; R. Flaminio; J. -D. Fournier; S. Franco; S. Frasca; F. Frasconi; M. Frede; Z. Frei; A. Freise; R. Frey; T. T. Fricke; P. Fritschel; V. V. Frolov; P. Fulda; M. Fyffe; H. A. G. Gabbard; J. R. Gair; L. Gammaitoni; S. G. Gaonkar; F. Garufi; A. Gatto; N. Gehrels; G. Gemme; B. Gendre; E. Genin; A. Gennai; L. Á. Gergely; V. Germain; A. Ghosh; S. Ghosh; J. A. Giaime; K. D. Giardina; A. Giazotto; J. R. Gleason; E. Goetz; R. Goetz; L. Gondan; G. González; J. Gonzalez; A. Gopakumar; N. A. Gordon; M. L. Gorodetsky; S. E. Gossan; M. Gosselin; S. Goßler; R. Gouaty; C. Graef; P. B. Graff; M. Granata; A. Grant; S. Gras; C. Gray; G. Greco; P. Groot; H. Grote; K. Grover; S. Grunewald; G. M. Guidi; C. J. Guido; X. Guo; A. Gupta; M. K. Gupta; K. E. Gushwa; E. K. Gustafson; R. Gustafson; J. J. Hacker; B. R. Hall; E. D. Hall; D. Hammer; G. Hammond; M. Haney; M. M. Hanke; J. Hanks; C. Hanna; M. D. Hannam; J. Hanson; T. Hardwick; J. Harms; G. M. Harry; I. W. Harry; M. J. Hart; M. T. Hartman; C. -J. Haster; K. Haughian; A. Heidmann; M. C. Heintze; H. Heitmann; P. Hello; G. Hemming; M. Hendry; I. S. Heng; J. Hennig; A. W. Heptonstall; M. Heurs; S. Hild; D. Hoak; K. A. Hodge; J. Hoelscher-Obermaier; D. Hofman; S. E. Hollitt; K. Holt; P. Hopkins; D. J. Hosken; J. Hough; E. A. Houston; E. J. Howell; Y. M. Hu; S. Huang; E. A. Huerta; D. Huet; B. Hughey

    2015-10-13

    In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The search covered the full sky, a frequency range between 20 Hz and 128 Hz with a range of spin-down between $-1.0 \\times 10^{-10}$ Hz/s and $+1.5 \\times 10^{-11}$ Hz/s, and was based on a hierarchical approach. The starting point was a set of short Fast Fourier Transforms (FFT), of length 8192 seconds, built from the calibrated strain data. Aggressive data cleaning, both in the time and frequency domains, has been done in order to remove, as much as possible, the effect of disturbances of instrumental origin. On each dataset a number of candidates has been selected, using the FrequencyHough transform in an incoherent step. Only coincident candidates among VSR2 and VSR4 have been examined in order to strongly reduce the false alarm probability, and the most significant candidates have been selected. The criteria we have used for candidate selection and for the coincidence step greatly reduce the harmful effect of large instrumental artifacts. Selected candidates have been subject to a follow-up by constructing a new set of longer FFTs followed by a further incoherent analysis. No evidence for continuous gravitational wave signals was found, therefore we have set a population-based joint VSR2-VSR4 90$\\%$ confidence level upper limit on the dimensionless gravitational wave strain in the frequency range between 20 Hz and 128 Hz. This is the first all-sky search for continuous gravitational waves conducted at frequencies below 50 Hz. We set upper limits in the range between about $10^{-24}$ and $2\\times 10^{-23}$ at most frequencies. Our upper limits on signal strain show an improvement of up to a factor of $\\sim$2 with respect to the results of previous all-sky searches at frequencies below $80~\\mathrm{Hz}$.

  8. Magnetic white dwarfs in the Early Data Release of the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    B. T. Gaensicke; F. Euchner; S. Jordan

    2002-08-26

    We have identified 7 new magnetic DA white dwarfs in the Early Data Release of the Sloan Digital Sky Survey. Our selection strategy has also recovered all the previously known magnetic white dwarfs contained in the SDSS EDR, KUV03292+0035 and HE0330-0002. Analysing the SDSS fibre spectroscopy of the magnetic DA white dwarfs with our state-of-the-art model spectra, we find dipole field strengths 1.5<=B_d<=63MG and effective temperatures 8500<=Teff<=39000K. As a conservative estimate, we expect that the complete SDSS will increase the number of known magnetic white dwarfs by a factor 3.

  9. Big Problems. Big Results.

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERTWaterSharingBeyondBang or

  10. Visualization at Supercomputing Centers: The Tale of Little Big Iron and the Three Skinny Guys

    SciTech Connect (OSTI)

    Bethel, E. Wes; van Rosendale, John; Southard, Dale; Gaither, Kelly; Childs, Hank; Brugger, Eric; Ahern, Sean

    2010-12-01

    Supercomputing Centers (SC's) are unique resources that aim to enable scientific knowledge discovery through the use of large computational resources, the Big Iron. Design, acquisition, installation, and management of the Big Iron are activities that are carefully planned and monitored. Since these Big Iron systems produce a tsunami of data, it is natural to co-locate visualization and analysis infrastructure as part of the same facility. This infrastructure consists of hardware (Little Iron) and staff (Skinny Guys). Our collective experience suggests that design, acquisition, installation, and management of the Little Iron and Skinny Guys does not receive the same level of treatment as that of the Big Iron. The main focus of this article is to explore different aspects of planning, designing, fielding, and maintaining the visualization and analysis infrastructure at supercomputing centers. Some of the questions we explore in this article include:"How should the Little Iron be sized to adequately support visualization and analysis of data coming off the Big Iron?" What sort of capabilities does it need to have?" Related questions concern the size of visualization support staff:"How big should a visualization program be (number of persons) and what should the staff do?" and"How much of the visualization should be provided as a support service, and how much should applications scientists be expected to do on their own?"

  11. Visualization at Supercomputing Centers: The Tale of Little Big Iron and the Three Skinny Guys

    SciTech Connect (OSTI)

    Bethel, E Wes [Lawrence Berkeley National Laboratory (LBNL); Brugger, Eric [Lawrence Livermore National Laboratory (LLNL)

    2011-01-01

    Supercomputing centers are unique resources that aim to enable scientific knowledge discovery by employing large computational resources - the 'Big Iron.' Design, acquisition, installation, and management of the Big Iron are carefully planned and monitored. Because these Big Iron systems produce a tsunami of data, it's natural to colocate the visualization and analysis infrastructure. This infrastructure consists of hardware (Little Iron) and staff (Skinny Guys). Our collective experience suggests that design, acquisition, installation, and management of the Little Iron and Skinny Guys doesn't receive the same level of treatment as that of the Big Iron. This article explores the following questions about the Little Iron: How should we size the Little Iron to adequately support visualization and analysis of data coming off the Big Iron? What sort of capabilities must it have? Related questions concern the size of visualization support staff: How big should a visualization program be - that is, how many Skinny Guys should it have? What should the staff do? How much of the visualization should be provided as a support service, and how much should applications scientists be expected to do on their own?

  12. Origin of matter and space-time in the big bang

    SciTech Connect (OSTI)

    Mathews, G. J.; Yamazaki, D.; Kusakabe, M.; Cheoun, M.-K.

    2014-05-02

    We review the case for and against a bulk cosmic motion resulting from the quantum entanglement of our universe with the multiverse beyond our horizon. Within the current theory for the selection of the initial state of the universe from the landscape multiverse there is a generic prediction that pre-inflation quantum entanglement with other universes should give rise to a cosmic bulk flow with a correlation length of order horizon size and a velocity field relative to the expansion frame of the universe. Indeed, the parameters of this motion are are tightly constrained. A robust prediction can be deduced indicating that there should be an overall motion of of about 800 km/s relative to the background space time as defined by the cosmic microwave background (CMB). This talk will summarize the underlying theoretical motivation for this hypothesis. Of course our motion relative to the background space time (CMB dipole) has been known for decades and is generally attributed to the gravitational pull of the local super cluster. However, this cosmic peculiar velocity field has been recently deduced out to very large distances well beyond that of the local super cluster by using X-ray galaxy clusters as tracers of matter motion. This is achieved via the kinematic component of the Sunyaev-Zeldovich (KSZ) effect produced by Compton scattering of cosmic microwave background photons from the local hot intracluster gas. As such, this method measures peculiar velocity directly in the frame of the cluster. Similar attempts by our group and others have attempted to independently assess this bulk flow via Type la supernova redshifts. In this talk we will review the observation case for and against the existence of this bulk flow based upon the observations and predictions of the theory. If this interpretation is correct it has profound implications in that we may be observing for the first time both the physics that occurred before the big bang and the existence of the multiverse beyond our horizon.

  13. Machine learning techniques for astrophysical modelling and photometric redshift estimation of quasars in optical sky surveys

    E-Print Network [OSTI]

    N. Daniel Kumar

    2009-01-06

    Machine learning techniques are utilised in several areas of astrophysical research today. This dissertation addresses the application of ML techniques to two classes of problems in astrophysics, namely, the analysis of individual astronomical phenomena over time and the automated, simultaneous analysis of thousands of objects in large optical sky surveys. Specifically investigated are (1) techniques to approximate the precise orbits of the satellites of Jupiter and Saturn given Earth-based observations as well as (2) techniques to quickly estimate the distances of quasars observed in the Sloan Digital Sky Survey. Learning methods considered include genetic algorithms, particle swarm optimisation, artificial neural networks, and radial basis function networks. The first part of this dissertation demonstrates that GAs and PSO can both be efficiently used to model functions that are highly non-linear in several dimensions. It is subsequently demonstrated in the second part that ANNs and RBFNs can be used as effective predictors of spectroscopic redshift given accurate photometry, especially in combination with other learning-based approaches described in the literature. Careful application of these and other ML techniques to problems in astronomy and astrophysics will contribute to a better understanding of stellar evolution, binary star systems, cosmology, and the large-scale structure of the universe.

  14. An Efficient Algorithm for Positioning Tiles in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    M. R. Blanton; R. H. Lupton; F. Miller Maley; N. Young; I. Zehavi; J. Loveday

    2001-05-30

    The Sloan Digital Sky Survey (SDSS) will observe around 10^6 spectra from targets distributed over an area of about 10,000 square degrees, using a multi-object fiber spectrograph which can simultaneously observe 640 objects in a circular field-of-view (referred to as a ``tile'') 1.49 degrees in radius. No two fibers can be placed closer than 55'' during the same observation; multiple targets closer than this distance are said to ``collide.'' We present here a method of allocating fibers to desired targets given a set of tile centers which includes the effects of collisions and which is nearly optimally efficient and uniform. Because of large-scale structure in the galaxy distribution (which form the bulk of the SDSS targets), a naive covering the sky with equally-spaced tiles does not yield uniform sampling. Thus, we present a heuristic for perturbing the centers of the tiles from the equally-spaced distribution which provides more uniform completeness. For the SDSS sample, we can attain a sampling rate greater than 92% for all targets, and greater than 99% for the set of targets which do not collide with each other, with an efficiency greater than 90% (defined as the fraction of available fibers assigned to targets).

  15. First ground-based 200-um observing with THUMPER on JCMT - sky characterisation and planet maps

    E-Print Network [OSTI]

    D. Ward-Thompson; P. A. R. Ade; H. Araujo; I. Coulson; J. Cox; G. R. Davis; Rh. Evans; M. J. Griffin; W. K. Gear; P. Hargrave; P. Hargreaves; D. Hayton; B. J. Kiernan; S. J. Leeks; P. Mauskopf; D. Naylor; N. Potter; S. A. Rinehart; R. Sudiwala; C. R. Tucker; R. J. Walker; S. L. Watkin

    2005-09-22

    We present observations that were carried out with the Two HUndred Micron PhotometER (THUMPER) mounted on the James Clerk Maxwell Telescope (JCMT) in Hawaii, at a wavelength of 200 um (frequency 1.5 THz). The observations utilise a small atmospheric window that opens up at this wavelength under very dry conditions at high-altitude observing sites. The atmosphere was calibrated using the sky-dipping method and a relation was established between the optical depth, tau, at 1.5 THz and that at 225 GHz: tau_1.5THz = (95 +/- 10)*tau_225GHz. Mars and Jupiter were mapped from the ground at this wavelength for the first time, and the system characteristics measured. A noise equivalent flux density (NEFD) of ~65 +/- 10 Jy (1 sigma 1 second) was measured for the THUMPER-JCMT combination, consistent with predictions based upon our laboratory measurements. The main-beam resolution of 14 arcsec was confirmed and an extended error-beam detected at roughly two-thirds of the magnitude of the main beam. Measurements of the Sun allow us to estimate that the fraction of the power in the main beam is ~15%, consistent with predictions based on modelling the dish surface accuracy. It is therefore shown that the sky over Mauna Kea is suitable for astronomy at this wavelength under the best conditions. However, higher or drier sites should have a larger number of useable nights per year.

  16. The star formation histories of galaxies in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    Ben Panter; Raul Jimenez; Alan F. Heavens; Stephane Charlot

    2007-04-24

    We present the results of a MOPED analysis of ~3 x 10^5 galaxy spectra from the Sloan Digital Sky Survey Data Release Three (SDSS DR3), with a number of improvements in data, modelling and analysis compared with our previous analysis of DR1. The improvements include: modelling the galaxies with theoretical models at a higher spectral resolution of 3\\AA; better calibrated data; an extended list of excluded emission lines, and a wider range of dust models. We present new estimates of the cosmic star formation rate, the evolution of stellar mass density and the stellar mass function from the fossil record. In contrast to our earlier work the results show no conclusive peak in the star formation rate out to a redshift around 2 but continue to show conclusive evidence for `downsizing' in the SDSS fossil record. The star formation history is now in good agreement with more traditional instantaneous measures. The galaxy stellar mass function is determined over five decades of mass, and an updated estimate of the current stellar mass density is presented. We also investigate the systematic effects of changes in the stellar population modelling, the spectral resolution, dust modelling, sky lines, spectral resolution and the change of data set. We find that the main changes in the results are due to the improvements in the calibration of the SDSS data, changes in the initial mass function and the theoretical models used.

  17. Parameter-space metric for all-sky semicoherent searches for gravitational-wave pulsars

    E-Print Network [OSTI]

    Karl Wette

    2015-10-28

    The sensitivity of all-sky searches for gravitational-wave pulsars is primarily limited by the finite availability of computing resources. Semicoherent searches are a widely-used method of maximizing sensitivity to gravitational-wave pulsars at fixed computing cost: the data from a gravitational-wave detector are partitioned into a number of segments, each segment is coherently analyzed, and the analysis results from each segment are summed together. The generation of template banks for the coherent analysis of each segment, and for the summation, requires knowledge of the metrics associated with the coherent and semicoherent parameter spaces respectively. We present a useful approximation to the semicoherent parameter-space metric, analogous to that presented in Wette and Prix [Phys. Rev. D 88, 123005 (2013)] for the coherent metric. The new semicoherent metric is compared to previous work in Pletsch [Phys. Rev. D 82, 042002 (2010)], and Brady and Creighton [Phys. Rev. D 61, 082001 (2000)]. We find that semicoherent all-sky searches require orders of magnitude more templates than previously predicted.

  18. The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III

    SciTech Connect (OSTI)

    Aihara, Hiroaki; Prieto, Carlos Allende; An, Deokkeun; Anderson, Scott F.; Aubourg, Eric; Balbinot, Eduardo; Beers, Timothy C.; Berlind, Andreas A.; Bickerton, Steven J.; Bizyaev, Dmitry; Blanton, Michael R.; /New York U., CCPP /Penn State U.

    2011-01-01

    The Sloan Digital Sky Survey (SDSS) started a new phase in August 2008, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements of the baryon oscillation feature in the clustering of galaxies and the quasar Ly{alpha} forest, and a radial velocity search for planets around {approx}8000 stars. This paper describes the first data release of SDSS-III (and the eighth counting from the beginning of the SDSS). The release includes 5-band imaging of roughly 5200 deg{sup 2} in the Southern Galactic Cap, bringing the total footprint of the SDSS imaging to 14,555 deg{sup 2}, or over a third of the Celestial Sphere. All the imaging data have been reprocessed with an improved sky-subtraction algorithm and a final, self-consistent recalibration and flat-field determination. This release also includes all data from the second phase of the Sloan Extension for Galactic Understanding and Evolution (SEGUE-2), consisting of spectroscopy of approximately 118,000 stars at both high and low Galactic latitudes. All the more than half a million stellar spectra obtained with the SDSS spectrograph have been reprocessed through an improved stellar parameters pipeline, which has better determination of metallicity for high metallicity stars.

  19. EXIST: A High Sensitivity Hard X-ray Imaging Sky Survey Mission for ISS

    E-Print Network [OSTI]

    J. Grindlay; L. Bildsten; D. Chakrabarty; M. Elvis; A. Fabian; F. Fiore; N. Gehrels; C. Hailey; F. Harrison; D. Hartmann; T. Prince; B. Ramsey; R. Rothschild; G. Skinner; S. Woosley

    1999-12-18

    A deep all-sky imaging hard x-ray survey and wide-field monitor is needed to extend soft (ROSAT) and medium (ABRIXAS2) x-ray surveys into the 10-100 keV band (and beyond) at comparable sensitivity (~0.05 mCrab). This would enable discovery and study of >3000 obscured AGN, which probably dominate the hard x-ray background; detailed study of spectra and variability of accreting black holes and a census of BHs in the Galaxy; Gamma-ray bursts and associated massive star formation (PopIII) at very high redshift and Soft Gamma-ray Repeaters throughout the Local Group; and a full galactic survey for obscured supernova remnants. The Energetic X-ray Imaging Survey Telescope (EXIST) is a proposed array of 8 x 1m^2 coded aperture telescopes fixed on the International Space Station (ISS) with 160deg x 40deg field of view which images the full sky each 90 min orbit. EXIST has been included in the most recent NASA Strategic Plan as a candidate mission for the next decade. An overview of the science goals and mission concept is presented.

  20. Big Bang Nucleosynthesis and the Helium Isotope Ratio

    E-Print Network [OSTI]

    Ryan Cooke

    2015-10-09

    The conventional approach to search for departures from the standard model of physics during Big Bang Nucleosynthesis involves a careful, and subtle measurement of the mass fraction of baryons consisting of helium. Recent measurements of this quantity tentatively support new physics beyond the standard model but, historically, this method has suffered from hidden systematic uncertainties. In this letter, I show that a combined measurement of the primordial deuterium abundance and the primordial helium isotope ratio has the potential to provide a complementary and reliable probe of new physics beyond the standard model. Using the recent determination of the primordial deuterium abundance and assuming that the measured pre-solar 3He/4He meteoritic abundance reflects the primordial value, a bound can be placed on the effective number of neutrino species, Neff(BBN) = 3.01 (+0.95 -0.76, with 95 per cent confidence). Although this value of Neff supports the standard model, it is presently unclear if the pre-solar 3He/4He ratio reflects the primordial value. New astrophysical measurements of the helium isotope ratio in near-pristine environments, together with updated calculations and experimental values of several important nuclear reactions (some of which are already being attempted), will lead to much improved limits on possible departures from the standard model. To this end, I describe an analysis strategy to measure the 3He I flux emitted from nearby low metallicity H II regions. The proposed technique can be attempted with the next generation of large telescopes, and will be easier to realize in metal-poor H II regions with quiescent kinematics.